A, system overview
With the vigorous development of the intelligent village, and people's living conditions put forward higher requirements, as an important part of safe guard system in intelligent residential area, smart home alarm system is more and more get people's attention.
Smart home alarm system is a unit for the unit, the unit of every household within the configuration of different alarm module, configuration of different detectors on each alarm module, in all the units in the form of telephone system to network management center, to transfer all the alarm information to the management center, management center through a dedicated alarm information collector and alarm center software to corresponding processing of alarm information, to ensure that the family property and personal safety. System has the following notable features:
Cardiac network structure
The use of the existing telephone network, the advantage of saving electric wiring program, every alarm host can directly with the center for communication, also to send and receive the information by telephone lines, simple installation, easy to use.
Derive a systematic design
One is easy to system. Because all probe connected to the alarm host is directly in parallel, the alarm host directly through telephone line and center of communication, is very easy to form a system; 2 it is easy to slip extension, the function of modular design, the system has strong scalability.
Has a variety of alarm
When residents of alarm in the home, management center alarm system management software automatically voice prompt. Residents in the home also can be configured acousto-optic alarm and phone dialer, realize the alarm and call the police at the scene.
Has a variety of cloth/removal way
This system through the password cloth, removal, system Settings safer, has a fenced mode to home, family removal mode, the partition at home fortification/model machine, etc.
Cardiac may authorize cloth removal
Management center under the condition of resident authorization protection, removal, management more convenient.
Cardiac function of inspection
Through alarm host family alarm detector can be inspection, and testing information transmitted to the turning center, called the software that can reflect every door alarm cloth/removal of modules, alarm detector information such as work, and every time to ensure that the system is in good working condition.
Second, the system design principle
Ⅰ. Burglar alarm system development direction
With the development of science and technology, large-scale security technology to prevent system gradually to integrated, intelligent direction, including security, fire prevention, television monitoring, access control, patrolling, perimeter alarm, security management (water, air, electricity, gas), communication command, broadcast sound system, etc. This type of system is based on each unit of risk level and the security degree of different requirement independently design, matching and processing.
Used in households, residential, commercial outlets, financial and urban network of small, medium and large system: based on the protection of anti-theft doors and Windows of household small alarm system; Residential medium or social and public security prevention system; Conditional cities gradually development and production of multistage network safety guard system of large city.
Anti-theft alarm control system and alarm signal transmission technology development. Will greatly enhance the capacity of social security, improve the security services and police officers direct disposal of theft, public security, fire fighting, first aid and effectiveness of all kinds of emergencies, the maximum to protect the country and the people's life and property safety.
Ⅱ. Burglar alarm system technology
1, the signal transmission technology
Alarm signal transmission cable, telephone lines, bus, power cord, wireless and other kinds of transport, no matter what the transport must ensure the safety of the transmission signal.
(1) cable transmission system, is a common relatively reliable alarm transmission mode, but its open circuit and short circuit or a transmission line and load should be able to produce a report to the police or other fault display, recognize the cause of the problem and general location.
(2) telephone line transmission: phone line is more and more popular in large and medium-sized cities, using telephone line transmission alarm signal, transmission more easily than other cheaper, for large and medium cities alarm networking has more realistic significance.
(3) bus system: whether two line, four lines, eight lines, practical as a closed loop transmission system, the biggest characteristic of it is not afraid of shear bolt, but its biggest weakness is afraid of short circuit. Bus transmission system, therefore, how to solve the short circuit, and promptly tell the general region of short circuit, is the use of bus transmission way need to solve the problem.
(4) the power line transmission alarm signal: the transmission mode with much, but the power sector, oil field, large industrial and mining enterprises, such as site use cheap and convenient. However the equipment must ensure that the user's safety, the same safety factor that has cut, short circuit.
(5) the alarm signal wireless transmission mode: the wireless transmission method has simple construction, low cost, easy in expansion, but its anti-jamming performance is poor; Can't work stably and reliably for a long time.
2, anti-theft alarm system software
(1) anti-theft security alarm system alarm parts and the display of contingency plans. The specific alarm parts show to see the trace of the criminal and to judge true and false alarm; According to the purpose of the emergency plan, that is, under the tension of the alarm after, methodically according to set good careful battle plan in advance, not delay time, quickly and accurately, surrounded by blocking, red-handed culprit, have the effect of the boy.
(2) automatic storage and print all kinds of data. Including: switch machine; The introspection, the inspection situation, fault condition; Alarm, patrolling, discrepancy; Emergency order automatic record, such as time and arrival time in order to check. These data with a password classification management, the personnel on duty had no right to call the memory file set and modify the program.
(3) recognize the alarm signal of front-end sent authenticity, the category of the fault signal and fault area roughly, and hints of troubleshooting methods.
3, patrolling system:
This is a big security system is an important and indispensable constituent, is whether the inspection patrol loyal to their duties, whether in strict accordance with the degree of safety and security patrol or risk level of the time, place and route to patrol work system. The system should combine and gateway control system, gradually improve improve product quality, the patrolling system to develop a new generation of patrolling system.
4, communication command system:
Large anti-theft alarm system, must have a wired and wireless communication command system, can be processed in a timely manner, the command and report to the superior situation, a quick victory, don't let the criminals escape, reducing the number of countries and people life and property loss to a minimum.
Ⅲ. All kinds of guard against theft detector technology
Every burglar alarm detector is not everything, have their own advantages and disadvantages, should according to the requirement of the objective environment and the safety degree (risk level) according to the characteristics of various types of detectors, foster strengths and circumvent weaknesses, according to their actual needs to choose all kinds of alarm detector.
1, three-dimensional space
(1) double guide
There are two commonly used double guide apparatus: microwave and passive infrared; Ultrasound and passive infrared
Double guide device to reduce two different false positives and false positives due to environmental interference detector itself has played a good role. As a result, has been widely applied in all kinds of anti-theft alarm system. Has its drawbacks as well as double guide apparatus, in order to give full play to the role of the double guide unit of each detector, and other stereo space alarm detector to the intelligent direction, must be to recognize each detector alarm, not only ensure the double guide good stability characteristics, and to ensure its reliability.
(2) passive dual infrared detector.
Passive infrared detector mainly consists of optical system, thermal sensor (or infrared sensor) and alarm controller is composed of four parts, such as infrared sensor detection wavelength range is 8 ~ 14 microns, due to the wavelength of the infrared radiation of human body is in the range of the detection wavelength, so better able to detect the activity of the human body.
Passive infrared detector to space control detector, as a result of the infrared penetration performance is poorer, there should be no obstacles in the area of the monitor, otherwise it will cause detection "blind area"; In order to prevent false alarm, should not be passive infrared detector probe objects at any temperature can change quickly, especially in the heating element. Passive infrared detector is also referred to as moving infrared detector. Should make the detector has the largest scope of alert, make possible the intruder can in a beam of infrared warning range. And make the intruder is advantageous to the transverse cross beam zone, so that we can improve the sensitivity of detection; Passive infrared detectors products mostly wall hung, should be installed in about 2 ~ 3 m from the ground on the wall. In the same room when installing several passive infrared detector, also won't produce interference between each other; Pay attention to protect Fresnel lens; Based on the above reasons, passive infrared detectors is basically indoor applied detector.
(3) the acoustic alarm detector
In audible sound (20-20000 hz) within the scope of the prize, saw, smashing, drag, suspicious voice will be pick up at the scene of the protection of pickups. When reach certain loudness (in decibels) can trigger the alarm. After the alarm sound on site for review (automatically or manually into the listening state) to determine whether someone invasion.
The other is a high audio sound broken glass will cause alarm, other audible voice call the police. Can automatically or manually enter the sound check (listen) state. Its characteristic is than on a greatly reduced the rate of false positives. But close to the high metal crash of breaking glass, and other audio sound can cause false alarms.
Acoustic alarm advantage is cheap, control area is large. (greater than 200 m2) defect is high rate of false positives, so only suitable for the mountainous area, outside, and a quiet environment.
2, all kinds of dot, line, face accused of guard against theft detector
(1) wooden doors and Windows, aluminum alloy doors, Windows, doors, Windows, steel doors, Windows, etc different use and installation of all kinds of magnetic control switch.
Contact materials to choose good conductive high melting point, it is not easy oxidation of the alloy material, dry reed pipe resilient material choice, tube plenty of inert gas, not leak, can work continuously more than sixty thousand times a trouble-free. Distance is greater than 1.2 CM or more, shutter more than more than 4 CM.
3, active infrared detectors.
There are three kinds of products:
(1) to send and receive together, the control range is small, usually 7 -- 10 m;
(2) to send and receive separate single beam interior external use of different active infrared detector probe distance series products;
(3) to send and receive double beam interior external use different detectors separately from active infrared detector series products;
4, glass break detector
The better product is sound + high frequency sound of glass breaking glass broken double guide. Than the original + glass shattering vibrations of double guide another leap forward. Installation is simple, 9 meters radius of action, used for various pavilions glass more. There are glass break detector put together with the remote control switch or passive infrared detectors or compound of double guide.
5, artificial call system, wireless emergency button or emergency
(1) artificial emergency alarm or emergency call system, cable switch hand press or foot, convenient, safe, reliable, have locked unit, at ordinary times is not easy to meet.
(2) the wireless emergency alarm and emergency call system, can make all kinds of craft, such as keys to practice or hang neck ornaments, and so on. Stable and reliable, wireless cable is more flexible than. Above for Banks, jewelry or cash relatively concentrated place air-conditions or elderly emergency care, etc.
(3) and wireless alarm device, the emission part on the bag or wallet and accept part in your pocket, once lost or stolen by the person to leave a certain distance (2-3 m) will call the police, the structure form of diversification.
6, perimeter alarm system
With the continuous development of science and technology, criminal crime means and increasing transportation, for the key departments, key facilities, warehouses, key protection units, not to set up the perimeter alarm system is difficult to ensure safety.
Perimeter alarm system in addition to the induction, induction high-pressure type active infrared and microwave wall outside the perimeter alarm system, also developed embedded type vibration boundary intrusion alarm system, vibration sensor cable type boundary intrusion alarm systems, buried cable type radiation boundary intrusion alarm system.
Three, system design
Ⅰ, user analysis:
There are dozens of alarm system on the market at present. How to choose the suitable for China's housing system in intelligent residential area, a community, property management companies and various engineering company common headaches. First of all, we according to the characteristics of the residential area security alarm system to do some analysis.
(a) the reliability of the system
In view of the residential area of distribution intensity, including some public facilities construction, covers an area of big, a resident of N, may extend to M households in the future. For town alarm center, perimeter alarm equipment, every household alarm/communications equipment must be adopted by the quality. Otherwise, constant false alarm can make the community security guards the toes, residents complain, "Wolf coming" such a long time. It is important to really "Wolf" when the omission of some important information. So community alarm system must choose quality is reliable, the use of the stability of the products, and manufacturers can provide a longer after-sales service.
Ⅱ. The system is practical
Surroundings for security work, thanks to the village area is larger, perimeter alarm system in addition to considering the large-scale operations, but also simple and practical, and most families usually no one at home during the day. When the alarm occurs, the alarm system should be able to immediately alarm message to pass to the center, and at the same time inform the family; This requests us to use simple, from the user's link, less easy to grasp into consideration.
Ⅲ.Investment
In addition we need to consider the system reliability, practicability, also take into account the cost allocation of system of household is unfavorable and exorbitant. So we should choose a set of superior quality, moderate price, simple and practical community alarm system.
Ⅳ, system composition:
Community security alarm system mainly includes client, signal transmission and property management center, perimeter alarm a few parts.
(a) client
1, the detector
When users on the system of protection, coming from a front end all kinds of detector system, signal will respond, and when someone in the home, can be abandoned. All kinds of detector users
Can choose according to actual needs and money. Next face various detector is suitable for community to do simple introduction, for the user to select:
Before detector in the introduction, first of all, we can analyze the thieves broke into the channels and routes. According to the international joint police statistics, the approach of the thief entered the room situation is as follows:
Into the living room
65% from the door to enter
35% into from the window
Into the house
55% from residential front door into, 20% are using generic key
40% from the open or close the Windows and balconies into or from a glass
Side door to enter
5% from the basement
The above data shows a thief crime route mainly doors and Windows.
Door magnetic switch:
Moving detector (infrared sensor and infrared double guide sensor)
The glass broken:
Vibration sensor:
Emergency button:
Ion smoke detector: when there is a fire for fire alarm
The gas sensor:
The smoke temperature probe.
2, the processing equipment:
Household sector by adopting the basic situation of 6 road host PS - 9006, the host can by phone will alert to the village of alarm center, can activate the audible and visual alarm at the same time, the keyboard through to cloth machine, also can connect wireless receiver PA - 415, and PA - 421 wireless red phase conjugation, which can realize freedom by the combination of cable and wireless alarm system.
The probe configuration: household gas probe, deserve to go up again the PS - 820 PS - 830 temperature sensor probe, PS - 830 smoke probe each 1, 4 PS - 901 - a with the emergency button, 4 PS - 6601 double guide probe and 8 infrared curtain detector. This completes a perfect security protection system, for the user, the system of withdrawal protection by password to complete the operation.
PS - 9006 six functions and characteristics to play host is as follows:
Function of A.
Low six basic programmable protection zones
Low is compatible with 9000 series LED/LCD keyboard
Low performance of the host board: 9000 series motherboard is the top products in the security technology. Have "reduced instruction set" microprocessors, built-in analog to digital converter and proprietary software, contains all the advanced security features, and the number of components is 30-40% less than other products! Combined with intuitive programming design, easy to learn and easy to use, is the most outstanding in the similar products.
Can take up to 16 keyboard, each subsystem can connect up to 8 keyboard
3, keyboard emergency buttons
Low conventional protection, left-behind protection, double left-behind protection, forced out of protection, a single bond conventional protection, single bond left-behind protection, single bond exit protection, automatic protection, key switch protection on time again
Low four programmable output (47 optional drive events, including protection, removal, fault, prevent `, bypass, enter the password, power outages, etc.)
Low false alarm technology
Low utilization of timing, voice and alert state control of false positives, including defence/out delay voice/transmission delay before the alarm events can be within the time delay to transfer/alarm after elimination produce users report/slip automatically shut down/emergency leave delay/installation site report.
Low slip type: 20 kinds of protection zones for programming.
Low defence technology: after the defence is triggered, start a delay timer at the same time, the delay time to trigger more than produce alarm has the number of programming.
Technology: low double protection zones have the function of defence technology, through the dual function of double slip resistance connection terminal
Low high capacity memory cache events: the 9006 host built-in real-time clock, can record 185 events, microcomputer upload events with time, date, event list can be LCD9000 type on the keyboard operation records and LCD display memory contains all events can provide important data, remote diagnosis, which can reduce the time for the service, will not be lost even if the power stop events memory.
Low diversity protection removal function: out with a time delay, two into the time delay, set alarm voice prompts, bypass, etc. As a conventional protection, left-behind protection, force protection, ChanJian protection, switch protection, automatic protection and no mobile automatic protection on time.
Low slip force protection function
Low automatic timing automatic protection/delay
Low 40 user password + 1 main user password + 1 installation password + 1 holding code
Low line monitoring
Low speed communication: through the use of advanced communications circuits, 9006 host reduces the time to online and send data, and can choose a variety of high-speed communications format (Contact ID Express) and other standard format, even custom communication format, receiver to connect all kinds of alarm center, in addition to dial into three alarm center number, can be set up independent every phone number report of events, programmable four report way.
Low memory 185 events
When can add up to 32 extension module
Low power: 16.5 VAC 40 va
Low auxiliary power output: 1 a
When the alarm current: 2.5 A
Low size: 220 x130mm
Low net weight: 0.254 kg
Low iron box transformer is available separately
The subsystem
When the host can be divided into two real subsystem, and each sector can be set belonging to a single or two subsystems, each subsystem respectively independent user account
Users can low composite subsystem allocated for the password
When each subsystem can choose different system parameters and access latency
Communication function
Three alarm center phone number, can be set up independent every phone number report of events
Compatible with all major alarm communication formats, including 4 + 2, SIA, Ademco Contact ID, etc., and even can be custom communication format, digital receiver to connect various alarm center
Automatic test report function, communication function failure report
Low entry/exit programming model reporting capabilities
Low connection through double protection zones can be extended to 12 sectors
(4) perimeter alarm
Perimeter alarm using active infrared, send and receive double beam, separately from the outdoor 160 M, mainly installed on the wall of the village, for is not installed on the wall, single independent installation, height of 1.2 M on the floor. When someone comes across a double-beam infrared protection line, trigger the alarm, monitoring system to identify industry in authenticity, eliminate the crime at the initial stage.
