Along with the continuous development of science and technology and the rising of people's living quality, attention to family and home security has been heating up, so do a good job in family security is still the top priority.
Family security technology
Our current security measures are mostly by civil air defense and technology (such as security doors, iron fence, etc.), by technical means to prevent if conditional word will get twice the result with half the effort.
1, install infrared anti-theft alarm device. In working state, the alarm device can launch infrared light invisible to the naked eye, as long as people enter the electric range, alarm noise from the device immediately, if there is a thief enter, residents can immediately found that the thief but they don't know, tend to give in easily.
2, the installation electromagnetic password lock. Install the lock, the lock from the outside to needs by the password first, otherwise unable to open the lock; If pried open, lock the alarm device can send out alarm sound. This will disturb the indoor person or neighbor, one can scare off a thief, two can also be tackled thieves.
3, alarm network system, to participate in urban districts. Users to install the alarm device, in case of dangerous situation, such as burglary, the alarm will automatically send alarm through the preset protection zones, police station immediately called device automatically shows the user the exact address, can be quickly police to the scene, police arrested suspect.
Family anti-theft product selection
Choose home burglar alarm to combining with the characteristics of household area, building structure, the property value, surrounding environment, such as multiple factors to consider, but there are a few general reference standards: cable way has communication and reliable, strong anti-interference ability, low cost advantages, can apply to new and reserved connections within the walls of buildings; But its poor maneuverability, inconvenience of users and products to meet the demand of the changeable, reserved for cable maintenance and replacement of the difficulty is high, the cost is big; Wireless way can avoid connecting cables between the probe and the host affect indoor decorate, possesses the advantages of flexible, simple, but there are also vulnerable to the outside world a variety of factors interference, device cost is relatively higher shortcomings.
To prevent a thief from the door into the means is mature, the use of magnetic reed switch tube/magnet to detect the opening of the door. But must pay attention to the immediate alarm and delay alarm two different alarm is triggered, the former can produce scene immediately report to the police, to scare off an intruder can immediately, but if I open the door if no user operation machine, will generate false alarm and cause harassment to the user and the neighborhood. After a delay triggering alarm way in the door is opened to prompt, prompt forget the removal of the user in a timely manner operating machine, if the host in a certain time not received signal, the machine will alarm host. Obviously, the latter is more practical.
To prevent a thief from the window into the general method is to use passive infrared detector, the initial ChanJian (only USES a single thermal element) is easily influenced by factors such as light, temperature, produce false alarm; More susceptible to rats, cats, dogs and other small animals caused triggered by mistake. Then gradually develop a multivariate (using multiple thermal element), and double jian (the use of thermal and microwave components), or three jian (the use of thermal and microwave components by MCU processing) model in order to reduce the incidence rate of false alarm.
In addition to this kind of probe are prone to false alarms and can only be used in indoor environment outside, there is a problem restricting its use in household: this kind of defense area of the probe is three-dimensional rather than by plane, master in indoor activities, not for the bedroom fully enclosed and protection. The new method is to use correlation type infrared stealth burglar mesh, this equipment has two types: outdoor type need adapter power supply; Wireless transmission mode, which can be within the outdoor 5 ~ 30 m distance on walls, doors, a door or window in the plane of the same wall form reticular planar defense, of the buildings to achieve real "closed" defence; Indoor type used batteries; Wireless transmission mode, can be installed on the balcony and indoor window, door, corridor on both sides, implements linear defense for 1-8 m distance; The equipment of the buildings to achieve real "closed" defence; Indoor type because more DIY (clients) installation convenience, can realize mobile defense, has practical value.
To prevent emergency appeal are implemented with emergency button, should also be necessary in the home burglar alarm equipment. If the remote control and emergency button, should assess the ability of emergency button to prevent false trigger. Fire and flammable gas leakage is also an alarm performance evaluation index.
The modes of early-warning is important index for alarm performance/price ratio and practical evaluation. The original submit the way is to use the alarm warning shots to nearby; Submitted to the path of the more popular is the mainframe can automatically dials the phone number of the user preset, can play users to register after dialing instructions touch p site voice; And as a commodity residential area or community defense applications, insist on alarm host networking alarm function. Realize the traditional way of networking alarm is to use the computer to receive data from the line or line information, both in comparison, using telephone line transmitting data information has circuit, high reliability, free maintenance, expansion and the obvious advantages such as convenience. But information using data from a computer receives telephone line, also has its disadvantages: ordinary PC is hard to bear of non-stop work continuously day and night, if use adaptable non-stop continuous work of industrial control computer, and make the product price surge in 3 ~ 5 times, cause a waste of money; The skills of using microcomputer to operating personnel demand is high, cause the waste of human resources; Always face by computer virus invasion, the loss of data, such as crash to restart the fatal flaw. To the distinction between the industry is one of the important indices for evaluating alarm performance. Which has the function of network alarm host should be able to distinguish between industry (such as invasion, emergency, fire alarm, etc.), precinct (doors, Windows, rooms, etc.). Some product features of practicality and standard conflict (such as no power supply), some products function and defense purpose conflict (such as remote control) machine.
