[ Huaqiang Security Network News ] 
Type of car alarm
With the advancement of science and technology, in order to cope with the escalating car theft, people have developed various types of anti-theft devices of different structures from generation to generation. At present, the anti-theft devices can be divided into three categories according to their structure: mechanical, electronic and Network type. Hook locks, steering wheel locks and shift locks are basically mechanical anti-theft devices. They mainly rely on locking clutches, brakes, throttles or steering wheels, and shifting gears to achieve the purpose of anti-theft, but only anti-theft alarms. Insert type, button type and remote type are all electronic type alarms. They mainly rely on locking ignition or starting to achieve the purpose of anti-theft, and have anti-theft and audible alarm functions. GPS satellite positioning car anti-theft system belongs to the network anti-theft device. It mainly relies on locking ignition or starting to achieve the purpose of anti-theft. At the same time, it can also locate the alarm information and alarm vehicle through GPS satellite positioning system (or other network system). Silently transmitted to the alarm center.
Remote control car alarm features
The remote-controlled car alarm is developed with the advancement of electronic technology and is the most widely popularized in the market. It features all the functions of the remote control alarm, reliable and convenient, with vibration detection, door protection and microwave or infrared probes. With the increasing demand for anti-theft devices in the market, remote-controlled car alarms have added many additional functions that are convenient to use, such as remote control central locking, remote control, warm and cold air, remote control electric windows and doors, and remote control to open the luggage compartment.
Main configuration of remote car alarm
A complete remote-controlled car alarm consists of the following components:
(1) Host part: It is the core and control center of the anti-theft device.
(2) Inductive detection part: it can be composed of a sensor or a probe, and the current sense of oscillation is commonly used.
There are fewer applications for microwaves and infrared probes.
(3) Door control part: including front cover switch, door switch and luggage compartment switch.
(4) Alarm part: horn.
(5) Wiring part.
(6) Other parts: including accessories such as stickers, screws and relays, instruction manuals and installation wiring diagrams.
The password of the anti-theft device is the same as that of the mobile phone. In addition to the same transmission and reception frequency, the remote control transmitter and the anti-theft host system of the remote-controlled car alarm have a password to recognize each other. The password of the anti-theft device is a set of data combined in different ways and is a key to the anti-theft device. On the one hand, it records the identity data (identity code) of the anti-theft device, which distinguishes the difference of each anti-theft device; on the other hand, it also contains the anti-theft function command data (data code or command code), which is responsible for turning the anti-theft device on or off. , control to complete all functions of the anti-theft device. In other words, with this set of passwords, the key to unlocking the alarm is also mastered.
The main types of remote-controlled car alarms are different according to the way of password transmission. The remote-type car alarms are mainly divided into two types: fixed-code alarm and code-based anti-theft device. Early anti-theft devices mostly use the fixed code method, but due to its own shortcomings, it has gradually been replaced by a code-based anti-theft device with more advanced technology and better anti-theft effect. The following describes the principle and characteristics of two different types of anti-theft devices. The anti-theft anti-theft device is a remote control car anti-theft device. The host and the remote control each have a set of the same password. The remote controller transmits the password and the host receives the password, thereby completing various functions of the anti-theft device. Generation of fixed code transmission (referred to as fixed code transmission method). The application of fixed code transmission mode in car alarm is not popular. When the amount of anti-theft device is not much, that is, it is in the initial anti-theft device application market, the safety and reliability of the anti-theft device are guaranteed. However, for an anti-theft device that uses a mature market, the fixing method is both unreliable and unsafe for three reasons:
(1) The amount of password is small, and it is easy to have a duplicate code, that is, a phenomenon in which a remote controller controls a plurality of vehicles occurs.
(2) After the remote control is lost, it is extremely unsafe to replace the remote control separately, unless it is replaced together with the main unit, but the cost is too high.
(3) It is also the biggest danger, that is, the safety is poor, and the password is easily copied or stolen, thereby causing the vehicle to be stolen. The code-based anti-theft device fixed-code anti-theft device has long been insecure for a small number of passwords, easy to appear duplicate codes and passwords are easily copied and stolen. Therefore, in 1996, a password learning type code-hopping anti-theft device appeared.
Its characteristics are as follows:
(1) In addition to the identity code and the instruction code, the password of the remote controller has an additional hopping portion. The code-hopping password is a certain encoding function. Each time it is transmitted, the password changes once, and the password is not easily copied or stolen, and the security is extremely high.
(2) The combination of hundreds of passwords has completely eliminated the duplicate code.
(3) The host has no password, and the host learns the mutual identification between the host and the remote controller by learning the password of the remote controller. If the remote control is lost, the remote control can be replaced safely and at low cost without any worries.
With the advancement of science and technology, in order to cope with the escalating car theft, people have developed various types of anti-theft devices of different structures from generation to generation. At present, the anti-theft devices can be divided into three categories according to their structure: mechanical, electronic and Network type. Hook locks, steering wheel locks and shift locks are basically mechanical anti-theft devices. They mainly rely on locking clutches, brakes, throttles or steering wheels, and shifting gears to achieve the purpose of anti-theft, but only anti-theft alarms. Insert type, button type and remote type are all electronic type alarms. They mainly rely on locking ignition or starting to achieve the purpose of anti-theft, and have anti-theft and audible alarm functions. GPS satellite positioning car anti-theft system belongs to the network anti-theft device. It mainly relies on locking ignition or starting to achieve the purpose of anti-theft. At the same time, it can also locate the alarm information and alarm vehicle through GPS satellite positioning system (or other network system). Silently transmitted to the alarm center.
Remote control car alarm features
The remote-controlled car alarm is developed with the advancement of electronic technology and is the most widely popularized in the market. It features all the functions of the remote control alarm, reliable and convenient, with vibration detection, door protection and microwave or infrared probes. With the increasing demand for anti-theft devices in the market, remote-controlled car alarms have added many additional functions that are convenient to use, such as remote control central locking, remote control, warm and cold air, remote control electric windows and doors, and remote control to open the luggage compartment.
Main configuration of remote car alarm
A complete remote-controlled car alarm consists of the following components:
(1) Host part: It is the core and control center of the anti-theft device.
(2) Inductive detection part: it can be composed of a sensor or a probe, and the current sense of oscillation is commonly used.
There are fewer applications for microwaves and infrared probes.
(3) Door control part: including front cover switch, door switch and luggage compartment switch.
(4) Alarm part: horn.
(5) Wiring part.
(6) Other parts: including accessories such as stickers, screws and relays, instruction manuals and installation wiring diagrams.
The password of the anti-theft device is the same as that of the mobile phone. In addition to the same transmission and reception frequency, the remote control transmitter and the anti-theft host system of the remote-controlled car alarm have a password to recognize each other. The password of the anti-theft device is a set of data combined in different ways and is a key to the anti-theft device. On the one hand, it records the identity data (identity code) of the anti-theft device, which distinguishes the difference of each anti-theft device; on the other hand, it also contains the anti-theft function command data (data code or command code), which is responsible for turning the anti-theft device on or off. , control to complete all functions of the anti-theft device. In other words, with this set of passwords, the key to unlocking the alarm is also mastered.
The main types of remote-controlled car alarms are different according to the way of password transmission. The remote-type car alarms are mainly divided into two types: fixed-code alarm and code-based anti-theft device. Early anti-theft devices mostly use the fixed code method, but due to its own shortcomings, it has gradually been replaced by a code-based anti-theft device with more advanced technology and better anti-theft effect. The following describes the principle and characteristics of two different types of anti-theft devices. The anti-theft anti-theft device is a remote control car anti-theft device. The host and the remote control each have a set of the same password. The remote controller transmits the password and the host receives the password, thereby completing various functions of the anti-theft device. Generation of fixed code transmission (referred to as fixed code transmission method). The application of fixed code transmission mode in car alarm is not popular. When the amount of anti-theft device is not much, that is, it is in the initial anti-theft device application market, the safety and reliability of the anti-theft device are guaranteed. However, for an anti-theft device that uses a mature market, the fixing method is both unreliable and unsafe for three reasons:
(1) The amount of password is small, and it is easy to have a duplicate code, that is, a phenomenon in which a remote controller controls a plurality of vehicles occurs.
(2) After the remote control is lost, it is extremely unsafe to replace the remote control separately, unless it is replaced together with the main unit, but the cost is too high.
(3) It is also the biggest danger, that is, the safety is poor, and the password is easily copied or stolen, thereby causing the vehicle to be stolen. The code-based anti-theft device fixed-code anti-theft device has long been insecure for a small number of passwords, easy to appear duplicate codes and passwords are easily copied and stolen. Therefore, in 1996, a password learning type code-hopping anti-theft device appeared.
Its characteristics are as follows:
(1) In addition to the identity code and the instruction code, the password of the remote controller has an additional hopping portion. The code-hopping password is a certain encoding function. Each time it is transmitted, the password changes once, and the password is not easily copied or stolen, and the security is extremely high.
(2) The combination of hundreds of passwords has completely eliminated the duplicate code.
(3) The host has no password, and the host learns the mutual identification between the host and the remote controller by learning the password of the remote controller. If the remote control is lost, the remote control can be replaced safely and at low cost without any worries.
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