Development of vehicle anti-theft technology and comparison of advantages and disadvantages

The vehicle is not only a convenient and fast modern transportation tool, but also has its own vehicle. At present, its own vehicle is a symbol of the strength of the owner. Therefore, the vehicle is not only taken care of by the owner, but also inevitably Car thieves are concerned.

Development of vehicle anti-theft technology

With the advancement of science and technology, in order to deal with the escalating segment of the car, people have developed anti-theft devices with different structures.

The first generation was a mechanical anti-theft device:

Mainly divided into steering wheel lock and gear lock two categories. It mainly relies on locking clutch, brake, throttle or steering wheel, and shifting gear to achieve the purpose of anti-theft, but only the anti-theft does not alarm. The advantage is that it is cheap and easy to install. The disadvantage is that the anti-theft is not complete, it is troublesome to disassemble each time, and you have to find a place to place when not in use. Sometimes the owner will install several kinds of mechanical anti-theft devices on the vehicle. According to industry insiders, this can deter the car thief to a certain extent or increase the possibility of thieves being discovered. These products have extremely low anti-theft performance and are rarely used on the market today.

The second generation is an electronic anti-theft device:

In order to overcome the shortcomings of the mechanical lock only the anti-theft alarm, the electronic alarm anti-theft device came into being. It mainly relies on locking ignition or starting to achieve the purpose of anti-theft, and has anti-theft and audible alarm functions. The remote-controlled car alarm features all the functions of the remote-controlled alarm, which is reliable and convenient. It can be equipped with vibration detection and gate protection and microwave or infrared probe. There are also two-way electronic anti-theft devices on the market. This kind of anti-theft device can not only remotely control the vehicle by the owner, but also the vehicle can transmit its own status to the owner. For example, which side of the door is opened or the window glass is opened. Destruction and so on. However, such an anti-theft device generally has a false alarm phenomenon, and does not fundamentally solve the problem of vehicle loss. This type of anti-theft device has a certain anti-theft function, and its anti-theft function will be lost when it exceeds the effective distance and unattended.

The third generation is a chip-type digital anti-theft device:

Most of it is used in the original anti-theft device of the car. Although it solves the anti-decoding function of the second-generation anti-theft device, it can't get rid of the limitation of distance. The thief approach has been upgraded, so many cars with the original anti-theft device have been stolen, including reports of high-speed cars such as BMW and Mercedes-Benz.

The fourth generation is the network anti-theft system:

The GPS system is called the "Global Positioning System". It is mainly used for the auxiliary anti-theft function of the navigation and positioning of the car. Its advantage is that it can know the location of each vehicle in the group fleet in real time for effective supervision. It is mainly the vehicle that is stolen and controlled or positioned by the service center to find the vehicle. It is a means of “hunting” after the alarm occurs.

Vehicle anti-theft technology

After four generations of development, car alarms have become more and more urban, and their principle institutions are different. What are the advantages and disadvantages of these anti-theft devices? Let's compare

1, mechanical anti-theft: the price is cheap, can not alarm

Mechanical anti-theft locks are mainly divided into two categories: steering wheel lock and gear lock. Mainly by locking the clutch, brake, throttle or steering wheel cover, shifting gear to achieve the purpose of anti-theft, but only anti-theft alarm.

Advantages: cheap, easy to install, a few hundred dollars or even tens of dollars can be fixed. Sometimes the owner will install several kinds of mechanical anti-theft devices on the vehicle. According to industry insiders, this can deter the car thief to a certain extent or increase the possibility of thieves being discovered.

Disadvantages: The anti-theft is not complete, it is more troublesome to disassemble each time, you don't have to find a place to place, you have to find a place to place when not in use.

2, electronic anti-theft: convenient but easy to false positive

In order to overcome the shortcomings of the mechanical lock only the anti-theft alarm, the electronic alarm anti-theft device came into being.

Advantages: The electronic alarm alarm mainly relies on locking ignition or starting to achieve the purpose of anti-theft, and has anti-theft and audible alarm functions. The remote-controlled car alarm features all the functions of the remote-controlled alarm, which is reliable and convenient. It can be equipped with vibration detection and gate protection and microwave or infrared probe function. There are also two-way electronic anti-theft devices on the market, which can transmit their own status to the owner, such as which side of the door is opened or the window glass is broken.

Disadvantages: Electronic alarms generally have false alarms, and they have not fundamentally solved the problem of vehicle loss. This type of anti-theft device has a certain anti-theft function, and its anti-theft function will be lost when it exceeds the effective distance and unattended.

3, chip-type digital anti-theft device:

Chip-type digital anti-theft device is the focus of the development of car alarm. Most cars use this anti-theft method as the original anti-theft device. The basic principle of chip-type anti-theft is to lock the car's engine.

Excellent: The circuit and the oil circuit can't start the vehicle without the chip key. The digitized password has a very low re-encoding rate, and the password key can be used to contact the lock on the car to unlock the lock. This eliminates the possibility of being scanned. High-end cars, as well as some domestic models, have been equipped with the original chip anti-theft system.

Lack: According to the requirements of modern car networking technology, lack of intelligence.

4, GPS: Although good, but the price is not cheap

The GPS system is called the "Global Positioning System". It is mainly used for the auxiliary anti-theft function of the navigation and positioning of the car.

Advantages: You can know the location of each vehicle in the group's fleet in real time for effective supervision. It is mainly the vehicle that is stolen and controlled or positioned by the service center to find the vehicle. It is a means of “hunting” after the alarm occurs.

Disadvantages: First, the GPS in the area where the satellite positioning ground monitoring center is not established cannot work;

Second, due to the limited number of satellites, there is a certain “blind zone” in the information scanning coverage, so that the monitoring is often in a discontinuous “lost” state;

Third, the price is generally more than several thousand yuan, and each year has to pay hundreds of thousands of dollars in service fees, so that the owner to add extra burden, so that ordinary people are discouraged. Because it is through information alarm, network coverage is not complete and the police conveyance is not direct, its anti-theft performance is greatly reduced, so the installation of GPS cars has been stolen frequently.