- Video surveillance systems
- Crowd detection - SONY
- People/vehicle counting - SONY
- Audio analysis - 360° protection - SONY
- Super Wide Dynamic Range – VIEW-DR – SONY
- Two-way audio
- System for automatic focusing
- Highlight Compensation - HLC
- Intelligent IR light
- Increasing visibility in dark areas of the picture - SSDR
- Thermal camera technology
- Increasing the clarity of moving obects – VPS
- Digital Image Stabilization – DIS
- Empowering analog cameras with intelligent video functions
- Megapixel camera technologies by AVIGILON
- License Plate Recognition (LPR) system
- IP rating for dust and water protection of cameras
- Fire detection systems
- Fire extinguishing systems
- Access control systems
- Intrusion alarm systems
- Electrical systems
- Perimeter protection systems
- Hotel systems
- Sound notification systems
- Video door phone systems
- Structured cabling systems
- Parking systems
- Gas detection systems
- Integrated security systems (BSS)
- Building management systems (BMS)
- Vehicle GPS and security systems
Video surveillance systems
Intelligent Motion Detection
Motion detection is not a new function, but some of the current systems generate false alarms because of movement from trees, water, falling leaves, etc. The manufacturers always strive to find better solutions for eliminating such false alarms and one of the newest is the intelligent motion detection by SONY -- IMD.
In most cases with other manufacturers, the motion detection is done by comparing 2 frames, while SONY’s system compares 15 frames using a complex algorithm, before compressing the video signal. The end result is less false alarms.
Crowd detection – SONY
Crowd detection is a modern software-based function for intelligent video analysis, supported by a multitude of SONY IP products. Adjustments of this function are done via the software, by designating the detection area by drawing virtual lines and setting up several other parameters, such as the size of the objects or the appearance of how many objects in the designated zone will trigger the alarm.
When the trigger levels are reached the system generates an alarm, which draws the operator’s attention. The event can be used to start a video recording, playback of an audio message or some type of a light indication alarm.
People/vehicle counting – SONY
Intelligent function from SONY for counting of people, vehicles or other objects. Its parameters are adjusted by software, where virtual lines are drawn -- they become the virtual trigger lines. Then the software will count the objects crossing the line(s).
The results are displayed in real time on the monitor. It is possible to set up the system to count objects crossing from one direction only, which can be used to control one-way streets or parking lots.
Audio analysis – 360° protection – SONY
This is a SONY function for intelligent video analysis. The camera compares the current noise levels in the room with prerecorded background noises, which are considered typical for that room. Initially, the camera records the room noise with the built-in microphone. Then the management software can be set up to monitor the noise levels in the room based on sound type and level.
All detected noises are compared to the prerecorded noise by both audio spectrum and amplitude, and, if they are different, an alarm is triggered. Because of the fact that the noise can be detected regardless of where it originated from, it can be said that this function provides 360° room protection.
Super Wide Dynamic Range – VIEW-DR – SONY
View-DR is a unique technology developed by SONY, which provides significant increase in the dynamic range of the picture in order to achieve improvement in the visibility of the darker sections of the image. The function gives excellent results in scenes with large light variations. View-DR achieves dynamic range of 84dB for Full HD cameras and up to 125dB for HD cameras, which are the best numbers in the industry.
View-DR function was made possible thanks to the development of a new generation SONY CMOS sensor -- Exmor, which has the ability to convert the incoming light into electrical signal much faster than other CMOS sensors. When View-DR is turned on,the camera generates 4 frames with different exposure levels. Then a special algorithm combines the light information into one resulting frame, which contains more information than any of the 4 frames separately. The time it takes for the Exmor sensor to process the information and produce the finalized frame, is the same as the time needed for a conventional CMOS sensor to produce only one frame with fixed exposure.
Two-way audio is accomplished by coding the audio signals via the G.711 (or G.726) standards and transfer the audio via IP network. The function is included in many IP cameras and offers the following advantages:
а) Ability for audio connection between the camera/location and the monitoring center – the installer can communicate with the monitoring station during the installation and setting up of the camera.
б) In case of an alarm a warning audio message (Voice Alert – SONY) can be played on the premise. The playback is accomplished with a powered loudspeaker, connected to the analog audio output of the camera.
в) Audio monitoring of the premises – at each given moment the operator at the monitoring center can hear what is going on around the camera. If the camera is of the PTZ type (high-speed dome), the operator can rotate it via tour mode, or manually, and catch and record any illegal activities.
System for automatic focusing
Auto Back Focus is one of the newest solutions by SONY for automatic focusing of the camera lens, which eases the process of installation. The function allows the installer to start automatic focusing procedure only with the push of a button on the camera, or remotely, by using the management software. This function is especially useful in the cases, where the camera is installed on a high pole or other place, which is hard to reach.
Highlight Compensation – HLC
HighLight compensation is a new function of the DSP chips in the cameras made by SAMSUNG and POWERTECH. When activated, the function effectively eclipses the brightest areas of the picture, thus making the other (darker) sections more visible, especially those around the well-lit areas.
This function is irreplaceable in cases, where the operator attempts to record the license plate number of a vehicle at night. The automobile headlights are very bright light sources, and the areas around them are very hard to see in detail at night. The HLC function masks the strong headlights and reduces their blinding effect on the surrounding areas and it makes the license plate readable.
Intelligent IR light
The intelligent IR light system actively follows the object in the field of view and its distance from the camera and automatically adapts the intensity of the built-in IR light. If the object is closer, less IR LEDs are used, or their light output is reduced. On the other hand, if the object moves further away from the camera, the intelligent IR system either activates more LEDs, or it increases the light output. The result is a clearer image of the object in sight. Without this function, if a person moves closer to the camera, the IR light intensity is so strong, that the human face resembles a ball of light and the person is unrecognizable. The intelligent IR light functionality increases the chance of identifying the intruder.
Increasing visibility in dark areas of the picture – SSDR
Manufacturers of CCTV cameras use different methods for increasing the visibility in the dark areas of the picture. On of the most effective functions used to solve such problems is SSDR – Samsung Super Dynamic Range.
This is how it works: initially, the DSP chip in the camera analyzes the picture and identifies the darker areas. Then it discretely increases the light output level for each dark pixel separately, depending on its initial light level. On the other hand, the output signal for the pixels in the bright areas remains unchanged. The end result is a better visibility of the details in the darker areas of the picture.
Thermal camera technology
Thermal cameras use a special device called microbolometer, which is very sensitive to the infrared light emission from warm bodies, such as humans and animals. The device can distinguish temperature differences with great accuracy -- 0.08°C. This allows such camera to “see”and distinguish between humans, animals and cars from a great distance, even during fog, heavy rain, snow or smoke.
A thermal camera by SAMSUNG with 50mm lens can distinguish a human being from a distance of 1000m. Most thermal cameras transmit black&white images, but newer models can generate somewhat of a color picture, even though the number of colors and the resolution are lower than those of conventional cameras.
Increasing the clarity of moving obects – VPS
The VPS (Virtual Progressive Scan) system by SAMSUNG has been developed in order to increase the contrast and clarity of the edges of moving objects. From a technical standpoint, the reason for smudging the edges of moving objects is the delays of the output frames in the interlaced scanning method, in which every frame is made of two fields, which are scanned consecutively. One of the fields contains the odd lines, and the other – the even ones. The VPS system by SAMSUNG is a unique one, which basically eliminates the delay during the creation of the two fields and the result is clearer contours of the moving images.
Digital Image Stabilization – DIS
DIS (Digital Image Stabilization) is used to compensate for slight camera movements and vibrations, which cause image blurring. The vibrations in security cameras are usually caused by industrial mechanical processes, roads and highways with heavy traffic or heavy atmospheric conditions, such as wind or rain. Those vibrations are transferred from the sources to the mounting structure/pole and then into the camera. The DIS algorithms are integrated in the cameras. They work by the principle of comparing several consecutive frames and the elimination of repetitive movements of all the pixels in the picture.
Empowering analog cameras with intelligent video functions
By employing a SONY IP encoder every analog camera can obtain intelligent functions, such as virtual lines and zones, intelligent motion detection, people counting, etc. These functions are controlled by the SONY RSM Advanced (RealShot Manager Advanced) software and SONY calls them DEPA Advanced functions. This way old analog systems can be retrofitted to obtain new functions for intelligent video analysis, without the need to replace the old cameras.
Megapixel camera technologies by AVIGILON
AVIGILON cameras use three different technologies to achieve a very high performance – megapixel CCD/CMOS sensors, HDSM (High Definition Stream Management) and JPEG-2000 compression. The result is a picture with a very high quality and the ability to zoom in on different sections of the image live, or when reviewing a recording, and showing the images on separate windows, as if several different cameras were used. The important fact is that the image quality on live and recording images is absolutely the same, due to the JPEG-2000 compression, which is a lossless type.
Among the megapixel models from AVIGILON is the one with the highest number of pixels in the security industry – 29MP. This camera’s resolution equals to the combined resolution of 95 cameras with VGA resolution. The cameras by AVIGILON provide high quality video surveillance for large areas with minimum number of cameras. That is especially efficient for surveillance of large crowds of people – airports, stadiums, train and bus stations, etc.
License Plate Recognition (LPR) system
LPR (License Plate Recognition) is a software by AVIGILON, which allows license plate recognition for fast moving vehicles – up to 180km/h. The system consists of a software (LPR) and a hardware (megapixel camera) by AVIGILON and it works both during the day or night. The video information is recorded and processed by the software. Each license plate number is extracted and recorded as text in a searchable database. Later, the operator can search for a certain license plate number through an easy-to-use interface. The system works with both latin and arabic alphabet and it allows searches by several parameters – by time interval, partial plate number, etc. After the license plate number is found, the database also displays a picture of the vehicle.
IP rating for dust and water protection of cameras
All professional products designed for outdoor use have the so called IP rating (International Protection Rating), which is used to provide information for the level of protection of the product’s body/case against dust or water penetration. The classification system is defined by the international standard IEC 60529. A typical IP rating level for a surveillance camera designed for outdoor use is IP66. The first digit shows the protection level for dust and varies between 0 and 6 (6 being the highest rating, showing the body of the camera is dust-proof). The second digit shows the level or protection against water penetration and varies between 0 and 8, as the number 8 shows that the product is hermetically closed, meaning such camera can be used permanently underwater. Most waterproof cameras are with raiting IP66, but we offer several models from POWERTECH and YOKO, which are IP68.
Fire detection systems
Addressable control panels
The addressable control panels provide individual addressing for each sensor and have a display for showing text messages for certain zones. The text is user-defined and is usually entered during the initial set up of the system. Moreover, these systems can be complimented by software for configuration and visualization of the triggered sensors.
Adjusting sensor sensitivity
Intelligent smoke detectors
These are specialized smoke detectors, developed for use in rooms with increased concentration of cigarette smoke and/or water steam. They can distinguish between smoke from fire and cigarette/water steam and trigger an alarm only if the smoke is from an actual fire. They use optical measurements based on the Tyndall principle and have 5 different sensitivity levels. For detection they use light in the range of 380nm – 750nm (Fusion technology).
The addressable fire detection systems use specialized in/out devices, which provide important functionality for receiving and transmitting signals for blocking or controlling other systems and devices. The aim is to ensure the security for people and equipment in case of a fire. Some of the more important functions of such devices are:
- Turn on/off electrical devices;
- Turn off ventilation systems;
- Turn on specialized ventilation systems for take smoke out of the building;
- Release signals for freeing up evacuation pathways;
- Send signals to PA systems for emergency sound notifications.
Wireless fire detection systems
Wireless fire detection systems typically use 433Mhz frequency. They are designed to be used in places, where it is not feasible to lay cables or where some type of building expansion has taken place. The wireless systems include all the necessary components, including functions for tracking the battery level of each component, as well as the state of the wireless reception. For increasing the range, repeater devices are used. Up to 10 wireless fire detectors can be assigned to each repeater.
Conventional control panels
The conventional (analog) fire detection control panels are the more economical type in comparison with the addressable ones. They use up to 32 detectors grouped in each zone. In case of an alarm, the central panel shows the zone, where the detector was triggered, through LED indication. The detectors used are with either manual or automatic triggering. There are also combined automatic detectors, which include a thermal and an optical detector in one enclosure. The analog systems also use special end devices, which can be only of the”output” type (can not accept signals from other systems). These devices are used to turn off electrical power, turn on ventilation, etc.
OSID – smoke detection for large open spaces
OSID is new technology by VESDA (XTRALIS) for fire detection of open spaces. It uses a beam emitter and a receiver (imager) of infrared and UV light. By utilizing detection in both ranges (IR + UV), a high level of accuracy is achieved. Also, alarms caused by dust, flying bugs or byrds are eliminated as false, because of the intelligent beam analysis. This type of fire detection uses the same sensitivity as in the conventional detectors and is designed to be used primarily in shopping malls, airports, train stations and other large spaces with high ceiling. It is interesting to note, that the system works great in cases where there are vibrations in the building, because of the system can tolerate small distance changes between the emitter and the receiver, which can be caused by vibrations of the building/construction.
Fire extinguishing systems
The fire sprinkler system consists of water supply, pumps, water control valves and a pipe network with sprinklers attached to specific locations on the pipes. The systems can use water from a special water container or the main water supply system for the building. The sprinklers are mounted at special locations on the pipes, under roofs/ceilings, under shelves, in furnaces and other places. The sprinkler heads include a special glass balloon, which is calibrated to blow up when reaching an exact temperature (most often at 68°C), after which water is sprinkled from that particular sprinkler onto everything in the nearby area. It is important to note, that water is released only from the triggered sprinkler, not from all sprinklers of the system.
Heat-activated bulbs for sprinklers
Aerosol fire extinguishers
The fire extinguishers made by FirePro use a solid and stable SBK component, based on Potassium salts. When activated, the solid SBK component is transformed into an aerosol, highly effective in extinguishing a fire.
During the process of fire extinguishing, the Potassium radicals bind with other free radicals in the flames and form a stable KOH compound. The fire is put out without decreasing the oxygen level in the room. It is also important to note, that the fire extinguishing with FirePro does not damage any electronic equipment and it is not toxic to people or animals.
Aerosol fire extinguisher activation
The FirePro fire extinguishing generators are activated in one of three ways. The most frequently used method is through a thermal cable, which ignites at 172°C. The second way is through an electrical pulse, with an ignition system, specifically designed to activate the generator. The third way is self-activation, when the surrounding temperature reaches 300°C.
Access control systems
The access control system management software registers events for all of the controlled doors. The information is collected in a database, on a main computer/server. The data can be shown in real time, or it can be retrieved as various historical reports, based on different predetermined parameters – by employee, door, event type, time frame, etc. The reports can be either printed out or exported in Excel or PDF formats. They can also include information about attendance tracking, such as late arrivals, early leaves, absences, etc.
Integration with video surveillance
Some of the new access control systems allow integration with video surveillance. More specifically, the access control software has the ability to show pictures in real time of the person passing through a controlled door. The picture is provided by a video camera, connected to a Digital Video Recorder (DVR). The video information is transmitted from the DVR to a client PC, via the Internet. It is also possible to review recordings of door events from any previous time periods. The access control software also allows several pictures to be displayed on one screen, from several doors simultaneously. The function enables the operator to see if the passing person is really the same one to whom the RFID card is issued to.
Tracking door state
There are two types of events for doors, tracked by the access control management software. The first type is when the door is left open for an extensive period of time. If this time exceed a certain predetermined time, a sound or light indication is played/shown on the client computer, so the operator can take the necessary steps to resolve the situation. The second type of event is opening of a door, without using an RFID card. This is also recorded as a system event, and the operator would follow a certain procedure to resolve it.
When one-way access control system is employed (one reader, usually outside) and when the door lock/unlock is done via electric strike or a magnet, it is necessary to install an Exit button. This way people can exit the building without using an RFID card. The controllers usually have a dedicated input for such buttons, so each time they are used, the events get recorded in the system.
This type of button is installed inside a building, close to an emergency exit. From a design standpoint, it doesn’t matter if this button is installed next to an exit button, or a door access control reader. In case of an emergency, this button can be depressed and the door will be free to open (electric bolt will be retracted). The door can be open as long as the button is kept depressed. This even will be recorded in the event list and it can be retrieved in the system reports.
Intrusion alarm systems
The INTEGRA control panels offer a very high level of protection – GRADE 3, based on the new European standard EN 50131-4 for intrusion systems. This system has been approved by the government intrusion protection agency for the Ministry of the Internal Affairs in Bulgaria for use in high-risk sites, such as banks. INTEGRA allows division of the system to 32 groups, expansion to 64 LED keyboards, 8 LCD keyboards and other specialized expansion modules. The control panels of the INTEGRA series also include integrated access control functions with the ability to control both entry and exit of up to doors.
The virtual keyboard is a unique method for remote control of the intrusion systems of the INTEGRA series without the use of a software. In order for the feature to work, the central panel is connected to the Internet via the ETHM-1 module. The virtual keyboard is a visual copy of the real one, which makes it very easy to use. All you need is a PC and a mouse. It is also important to note, that you have full control over all the functions, while in comparison some functions are not available when using the management software.
Mobile KPD (keypad)
Mobile KPD is a free app from SATEL, which turns your mobile phone into a remote keyboard for controlling the INTEGRA control panel. The information shown on the display of the mobile phone is the same as on the system keyboard. You can control all functions of the intrusion system via the buttons on your phone. The system requires Java and Internet on your phone. For better security, the connection is encrypted with a 192-bit key.
A unique wireless controller by SATEL – ACU-100
The ACU-100 controller is a unique one, because of its features and the security it offers. It works with a frequency of 868MHz, which provides the ability to work with up to 150m distance between the controller and the wireless SATEL detectors. This is an independent system, which can not only work with SATEL, but also with any other intrusion system, thanks to its PGM outputs, which can be connected to free zones of any other security system. This way, any existing intrusion system can be expanded with wireless sensors, as long as there are free zones to connect to the PGM outputs of the ACU-100. Because the connection between the controller and the sensors is two-way, it means the reliability and the performance of the system are very high. Every attempt to jam the signals will be detected by the controller and the system will register the event as a sabotage.
Wireless control module – ASW-100F
The ASW-100F module is used to wirelessly control (turn on/off) devices which use 220VAC. It connects to the wireless module ACU-100 (by SATEL). It can control many different devices, such as: floor heating, AC units, garage doors, lights, water irrigation systems, etc. The control is done via a GSM module or timers built into the main control panel .
Unique SATEL detectors
ASD-100 is a combined wireless optical an thermal fire detector with built-in audio and light signalization. It connects to the control panel of the SATEL intrusion system via the wireless module ACU-100.
FD-1 is a water level sensor for detecting water in rooms with high risk for flood. It has an external probe, separate from the detector circuitry, which makes it easier for installation. There is also a wireless version of the sensor, the model AFD-100.
ARD-100 is a wireless detector for 3D reorientation, suitable for protecting valuable objects. The sensor connects to the SATEL control panel via the wireless module ACU-100.
Cobalt Pro is a combined PIR и MW volume sensor with a quadruple PIR component, digital detection algorithm and anti-masking function.
Preventative protection for people from electric current injury is realized by the Residual-current devices (RCD). The low end current limit, considered dangerous to humans, is 30mA. The automatic circuit breakers cannot reliably protect in the cases of current leakage, because they can not guarantee quick reaction in such low current levels, which are actually dangerous to humans. In the design of the RCDs, a current transformer is used, whose primary coils are actually the energized and the neutral conductor wires in the circuit, which has to be protected. The direction of the winding in this coil is such, that the magnetic fluxes, created by the currents in both conductors mutually cancel each other. When a leakage current is detected, this violates the “status quo” state and in the secondary coil and an electric current is induced, proportional to the leakage current.
Overvoltage protection (OVR)
Overvoltage protection (OVR) devices, often called surge suppressors, are tasked with protecting the electric devices from the dangerous effects of excessive voltages. Protected devices can be TVs, computers, A/V receivers and other consumer and industrial electronics. The power supplies of these devices are at risk of being hit with bursts of excessive voltages (Un>220V), which are generated from direct or indirect lightning hits. High voltage spikes can also originate from the process of turning on/off large inductive loads, such as electric motors or fluorescent lights. OVR protection devices are built in power strips with multiple outlets, or are mounted on the power supply entry point of electrical panels. In most cases they work by leading (shorting) the high voltage spikes to ground, thus protecting the electric devices connected to the protected outlets or the el. panel.
Electrical panels can be one of several types – main, floor, apartment, etc. They can contain many different devices, such as automatic circuit breakers, residual-current devices (RCD), grounding lines, stairwell systems, etc. The modern panels can be designed for wall or floor mounting, with see-through doors or other features and functions. Depending on the requirements of the building, the panels can be fire-proof (for example when reaching 750°C the panel can activate it’s own fire extinguishing system, designed to put out the fire within 5 sec), can resist high temperatures, based on the BOB standard for public buildings, or comply with the HRB standard – for high-rise buildings. Additionally, all electrical panels also have IP ratings for dust and water protection of the el. panel, based on the standard IEC 60-529. The rating is given with the letters IP followed by two digits, for example IP30, where the “3″ is the level of dust protection, and the “0″ is the level of water protection.
Perimeter protection systems
MicroPoint II – designed for metal fence installation
The INTREPID MicroPoint II system by Southwest Microwave consists of controllers and sensor cable, which are mounted on a metal fence to offer perimeter protection. The sensor cable performs three functions – detection, power supply and data transmission. For every 400m of cable one controller is needed. The system works by detecting mechanical vibrations in the fence, caused by attempts for climbing or cutting. The system has the highest accuracy in the world for localizing a breach – 3m. In order to provide an adequate protection, one cable run is needed for a fence with a height of up to 3.3m. For higher fences a second cable is mounted horizontally, in parallel with the first one. The system is calibrated for zoning and sensitivity adjustments after the installation. The perimeter can be divided on many zones with different lengths, which is used for integration with video surveillance, sound notification or lighting systems.
MicroTrack II – designed for underground installation
INTREPID MicroTrack II system by Southwest Microwave consists of controllers and a pair of cables – transmitter and receiver, which are mounted underground (23cm depth). The transmitter cable sends a group of RF frequencies in the range of 18-25MHz, which are detected by the receiver cable. This way a “detection balloon/zone” is created around the cables, the size of which varies depending on the distance between the two of them. The max distance is 2m, which will provide detection balloon about 3m wide and 1m high. Each passing of an object through the detection zone will generate an alarm. It is important to note, that the system is optimized to detect objects with the typical speeds of walking, running or crawling human beings. One controller is used for every 400m of cable/pair. As with MicroPoint II, the cables are also used for power supply and data transmission. The system is calibrated for sensitivity and performance after the installation. Accuracy is also 3m, making it the best in the industry. The protected perimeter can be divided into zones with different sizes, which is very helpful for integration with other security systems.
Microwave barriers – MicroWave 330
The microwave sensors MicroWave 330 by Southwest Microwave have an effective detection range of 30 to 244m. They have many features, which provide very high performance and reliability. One of them is the fact that they work in the K-band range (24.162GHz), which is not as heavily utilized by other similar systems. This means less interference from other radar systems. There are also 6 modulation channels, which gives the choice to choose different ones in order to reduce the interference from installing the sensors in close proximity to other similar or same radar systems. Additionally, the MicroWave 330 has a special built-in protection against electromagnetic and radio interference. Main advantage of the microwave systems by Southwest Microwave is the fact that they offer a very narrow detection zone – 6.7m diameter (in the largest zone at the middle of the 244m distance) between the transmitter and the receiver, which is one of the best (smallest) for this technology.
The relay modules made by Southwest Microwave are designed to facilitate the integration of the perimeter protection system with others – video surveillance, sound notification, lighting, etc. For example, in case of a perimeter breach in a certain zone, the operator can see in real time picture from camera overlooking that particular location. Seeing the event, the operator can easily determine whether or not it has to be investigated further, to play a warning audio message, or to turn on lights in that zone to scare off the intruders. The relay modules are made with either 8 or 16 outputs and are connected via RS-485.
Management software for perimeter protection – PSM
The software for set up and control – Perimeter Security Manager (PSM) allows an easy set up of the perimeter protection systems by Southwest Microwave. It is important to note, that one software platform is used for all three systems – MicroPoint II, MicroTrack II and MicroWave 330. The software allows one zone to be protected simultaneously by two or three types of perimeter protection systems and it also has a built-in interface for integrating with video surveillance, sound notification, lighting or other security systems. The connection between the controllers and the main server is done via an RS-422 connection. With the help of convertors the connection can be also made optical, or TCP/IP.
RFID cards, issued to hotel employees (housekeepers, security, or technical maintenance) are called service cards. Such are programmed to open one, several or all doors and can have different expiration dates. The events from these cards are also recorded in the system database and can be pulled up in various reports for review or printing.
Client (hotel guest) key is an RFID card, which can be programmed only for one door, for a certain period of time. Several client cards can be programmed for one door. If a client key is placed in the inside reader in the room, the door can be opened from the outside only with a second client key, but not by a card of the maintenance personnel. Exception to this rule is when there is a “panic alarm”activated in the room.
Panic systems are usually installed in hotel bathrooms and are integrated with the main hotel system. Panic events are of the highest priority, and are visualized on main and client computers of the hotel management. When such event is registered, several actions will follow, based on predetermined hotel procedures. Each action is recorded with a date/time stamp and it goes into the main database. Usually the first action is taken by the receptionist, who would first make a phone call to the room to check on the situation, after which, if needed, a prompt visit to the room will follow, either by medical personnel and/or hotel service personnel.
After the hotel guest leaves the room, the system counts down through a predetermined amount of time (for example 40sec), after which all sensors in the room go into a security mode, the electric appliances get turned off or go into a predetermined work mode. Every attempt to open a window or the entry door without a proper authorized card is registered as an alarm event.
This is a device, which controls the AC/heat unit in the room. It can be locally controlled, or it can be part of an integrated system, if the hotel has a central heat/air system. In that case the main system defines the temperature mode for each room depending on the status – free, occupied or pending occupation. This ensures optimal work mode of the system, comfort for the clients and it leads to energy savings.
Sound notification systems
Zoning of the premises
When installing a sound notification system with zoning function, you have the ability for quick and easy relaying of office and advertising messages (prerecorded or real time) to certain zones only. Selecting the desired zone is done by the push of a button on the microphone sound control station.
Operating voltage of the sound system lines
- - small cross-section of the line wires;
- - more loudspeakers on one line;
- - immunity against electromagnetic interference;
- - non-balanced lines.
Monitoring the state of the system devices
The modern emergency sound notification systems have control mechanisms for the current state and condition of the signal lines and the connected modules – amplifiers, controllers, mic stations, power supplies, etc. When a fault occurs, an alarm is triggered, such as alarm output activation, or sound/light notification for the operator. For example, for output lines without external regulators, the loudspeaker lines are monitored constantly, while in comparison, with lines with ext. regulators, the control is done by schedule, at predetermined time (date/hr) intervals. At those moments (for the second method) the regulators are shunted in order to properly measure the lines to the loudspeakers (the regulators must have this feature).
Depending on the classification of the building, there are different requirements for system reserves:
- - without any reserve;
- - power supply reserve – 24VDC power supply, battery;
- - reserved power – „Stand by“ amplifiers;
- - reserved lines – two separate lines in one zone;
- - reserve system – two separate sound systems in one building.
Outdoor camera with LED light
Many entry cameras of video door phone systems have built-in LEDs for lighting up the area around the entrance. The LEDs are activated when the “CALL”button is pressed on the entry camera. The light is strong enough to provide visibility for up to several meters in front of the camera. Thanks to this feature when someone comes at the door at night, it is not necessary to have a system to automatically or manually turn on lights in that area.
Access control feature
Some entry cameras have an access control feature, which works by entering a code, while others have a built-in reader for RFID cards. That way access can be provided for all members of the family, or other authorized persons, without the need to use a key.
Large part of the assortment of modern color video monitors for door phone systems are the models without a talking handle (hands-free). They have a built-in microphone and a loudspeaker for conducting conversations between the monitor and the entrance camera.
Structured cabling systems
The main factor used to define the type of the cabling network needed for a certain project is the data volume, which has to be transferred in a given amount of time. It is also necessary to take into consideration the desires and requirements of the client regarding information archiving. And last, but not least, it is important to forecast the level of expansion of the client’s business in the next 3-5 years.
Structured cabling system architecture
Typical components of structured cabling system are cables (copper cat.5, 6, 7, optical SM, MM), end points (rosettes, sockets) and communication distributors (RAK-mounted devices). From transmission distance standpoint the cables can be copper only (UTP, FTP, SFTP), or a combination of copper and optical. The copper cables also vary in types, and are chosen based on the volume of the transmitted information and the noise insulation needed. Data volume and distance also define the optical cable types and the necessary equipment for transmitting in multi mode or single mode.
Panels for vertical panel management
For a good arrangement of the RAK-mounteg gear it is important to utilize components for vertical positioning of the patch-cables. That way the finished cables will look great and will be arranged neatly, with minimum unused space. The vertical arrangement can be realized with the proper brackets and panels, which are mounted on the sides of the vertical 19″ front brackets. Usually mostly horizontal panels are used for arranging the patch-cables, but using of vertical arrangement significantly facilitates the RAK-mounted gear, minimizes mistakes during (pre)configuration, and last, but not least, the cables will look great.
Central and distributor hubs, cabling and workstation connectors
In order to make maintenance easier, the structured cabling system contains distribution and local hub points. This makes the system more flexible in regards to the expansion capabilities, and for repair work. The connectors of the local hubs can be mounted in the floors – distribution boxes, or as rosettes/sockets in the walls close to the individual workstations. Often a parallel wireless system is installed.
This is a method for chemical treating of steel housings for barriers and entry/exit columns, by which through an electrochemical process a special polyester paint is deposited on the surface of the housing. The result is a layer with very high durability against different atmospheric conditions, UV light and corrosion, as well as an excellent esthetic looks.
Anti-crushing safety device
This is a device for block the movement of the barrier, if under it there is a vehicle. The system is most often built with a transmitter and a receiver of infrared beams. When there is a vehicle under the barrier at the time of the closing, the signal sent to the IR receiver is blocked by the vehicle being on top of it, which in turn sends a signal to the controller of the barrier to stop its movement. Most barriers have a special connector on their controllers for that purpose.
Powerful management software
ANDY offers software for control, set up and visualization for parking lots. There are comprehensive solutions for management of parking lots with many entry/exit points, as well as software control for unlimited number of payment plans and visitor status – office, subscription, VIP, etc.
License plate recognition (LPR)
The software module for license plate recognition (LPR) provides the ability for automatic barrier opening when the system recognizes a license plate number, previously recorded in the database of the system. This software can be implemented as a part of a more comprehensive software software system, or it can be used as a separate module.
Detection and visualization of free parking spots
The controller SP-132P is used to manage detection and visualization of the occupancy state of up to 32 parking spots. A number of controllers can be connected for delivering information for any number of parking spots. The controller works in combination with microwave sensors, light boards and LED indicators for visualization of the information. Above each parking spot there are a sensor and an indicator installed. The indicator is easy to see from a distance and it lights up in green to show an empty parking spot and red when it’s occupied.
Gas detection systems
Some explosive gases are: methane, hydrogen, propane-butane, oxygen, acetylene, etc.
Some toxic gases are: carbon oxide, carbon dioxide, ammonia, etc.
Moreover, the gas detectors can be conventional or addressable, depending on the type of system they are designed to work with.
There are also consumer gas sensors, which are designed to alarm the people in a residential environment of leaks, such as propane-butane in kitchens or carbon oxide in garages.
Gas signalization stations
The central stations for gas detection systems can be one one of two types: conventional and addressable. They can work with different types of gas detectors. Depending on the number of gas sensor inputs they are equipped with, the conventional stations are made in one of several versions – from one-channel to six-channel models. Addressable central stations typically have either 8 or 16 channels. They are mostly used in large areas, such as underground garages or administrative buildings.
Methods of notification
When a signal is received from a gas detector, the central station turns on certain action circuits through relay outputs. For example, in the most common case, the system turns on the ventilation in the room and switches off the main power supply to the building in order to prevent an explosion.
Integrated security systems (BSS)
NetCom Guard is a system, designed for remote monitoring and control of large number of high-risk sites. It can be used either as a main or a secondary security management system. The NetCom Guard software is designed to combine the information on one monitor from all intrusion systems, video surveillance, fire detection and access control. The system is a unique and a valuable proposition for the Bulgarian market. Some of its main functions are: compatibility with all manufacturers of security systems, serve a large number of remote sites (up to 1000) and encrypted communication channels, which cannot be jammed without triggering an alarm. The system can also send SMS/E-mail messages in case of an alarm and it registers any events for compromising its functionality or proper operation.
NetCom Guard server
The NetCom Guard server is a program for collecting, analyzing and visualizing data received from all of the integrated security systems. By utilizing LAN/WAN connection and GPRS the data is exchanged in a two-way fashion between the server and the connected systems. The information is displayed simultaneously from all sites on one screen (alarms, state, etc.), along with other data, including recording the actions of the operator. The connection is exceptionally fast – the events are registered and shown on the screen within 3 seconds of occurring. That is also the amount of time needed for receiving a video signal from the site where the security event occurred. If the alarm event came from a fire detector, within several seconds on the operator’s screen there will be visualization of the floor plan of the area with the exact location of the triggered sensor.
The software can perform certain functions depending on established procedures, plus real time actions decided by and carried out by the operator. With the use of a GSM/telephone communicator device, in case of an alarm there could be a prompt connection established from the operator’s station to the authorized/responsible personnel. The system also monitors the intrusion systems for unauthorized bypassing of zones at the integrated sites, and alarms the operator of any such occurrences.
Communication modules NCG13 LAN / NCG13 GPRS
The communication modules are used for receiving output signals for the current state (alarm, transactions, power supply, etc.) of security systems and their transmission in real time to a monitoring center through LAN/WAN (model NCG13 LAN), and GPRS (model NCG13 GPRS). The devices have 13 hardware inputs plus two additional ones, which can be used to turn on digital temperature sensors, or to receive data through special protocols, such as Ademco Contact ID. The flexible design of the communication modules allows the adding of other ones, which can be used for intrusion system control (double control) or for connecting sensors for flooding, gas, etc.
Converting modules ZL816 / LZ816
These modules are designed to transfer groups of zones from one location to another via LAN/WAN. The transfer can be to a different floor, building, or any remote location around the globe.
The ZL816 (Zone-to-LAN) controller has 8 alarm inputs (with ATZ 16), one input for power supply control and 4 programmable relay outputs (PGMs). The module tracks the current state of the inputs and after converting the data into TP/IP, it sends it through LAN/WAN. On the other hand, using the return channel, the ZL816 can receive commands for activating its PGM outputs for controlling different devices.
The LZ816 (LAN-to-Zone) controller has 8 alarm outputs (with ATZ 16), one output for controlling the power supply of the sending module, and 4 inputs for controlling the PGM outputs of the ZL816. Through the LAN input the module receives the information from ZL816 and converts it to signals, which repeat the ones from the corresponding input of the transmitting module. The outputs of ZL816 get connected to the control panel. On the other hand, the control panel can transmit commands through the PGMs to ZL816.
Building management systems (BMS)
Central management software
The Building Management Systems (BMS) are controlled by a software, installed on a central computer. It provides the technical and management personnel with information and ability to perform certain actions on the controlled systems through operator stations. The software visualizes information about the current state, alarm events and the necessary procedures to follow for every possible situation. The software can be programmed to automatically control certain systems, for example to turn on the ventilation system in case of detection of high levels of toxic or explosive gases, to alarm people on the premises through audio messages or light indications for certain events, etc.
The end devices (controllers) work by instructions programmed in their memory, unless there is a different instruction from the operator’s station, which would override the internal memory for the current occurrence. The controllers continue to operate with their built-in instructions if there is a communications issue between them and the main computer.
All controllers are interconnected with a protected communications channel, which can withstand strong electromagnetic interferences caused by AC/ventilation systems, or other electrical devices.
Integration with other systems
A building Management System (BMS) collects information from the different connected systems through specialized communication adapters and software drivers, which are configured based on the specific requirements. The integrated systems can include fire detection, access control, video surveillance and other equipment, such as chillers, VRVs and others, which are usually delivered with BMS controllers already built-in. For implementing full integration, the manufacturers must offer all the necessary communication interfaces. Most often, the sub-systems are integrated via J-bus, Backnet (for chiller control), ModBus (for el. dvices, fire extinguishing control systems, cauldrons, transportation systems, fire detection), or М-bus (for devices for measuring water use, heat use, electric power use, etc.).
Vehicle GPS and security systems
GPS system FIXY
The FIXY system provides comprehensive options for set up and control of the vehicle GPS system. The powerful software provides information every 20sec for the current position of the vehicle, including speed and moving direction. The system can generate many reports, thanks to the active archiving processes, which constantly take place in the system. For every vehicle, the system can generate a route report with fuel usage forecast. Other important functions are driver identification through RFID cards and the visualization of the position of the vehicle through Google Maps. Very helpful is also the “Organizer” option, which can generate reminder messages for vehicle maintenance – oil change, filters, belts, tires and other consumables.
GSM control and notification
There are GSM modules, which can be connected to many of today’s vehicle anti-theft systems, whose main function is to send a notification to the owner or other authorized persons in case of an alarm. The notification is via a ring or an SMS. Another interesting function of the GSM module is the possibility of remote control of certain vehicle functions, such as remote engine start/block start, el. windows roll up/down, trunk open/close, etc.
The weakest link in any vehicle alarm system is the code transmitted by the remote control. In the cases where the code is “fixed”, the code never changes. Only the first two bits show which button has been pressed. This type of code can be easily recorded and reproduced, so it’s quite easy to disable the car’s alarm system.
On the other hand, if the car alarms system uses the so called “jumping”code, the situation is quite different. The code is dynamic and it changes every time a button is pressed. The max number of possible combinations is 10¹⁹. This way recording of the code is useless, because that particular one will never be transmitted again. That makes the car alarm system very difficult to compromise.
City mode for radar detectors
Large portion of the modern radar detectors have the so-called “City Mode” function. It’s designed to limit the interference caused by other wireless systems, such as garage door openers, intrusion systems or any others using similar frequencies. This mode offers better performance of the radar detectors (less false alarms) when driving in urban areas.