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Automotive safety systems and identify the device works by jodie mht
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Automotive safety systems and identify the device works |
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Automotive
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The upcoming new generation of transceivers has a special diagnostic functions authorized to read the confidential information in the key of the anti-theft system for historical information. The number of authorized spare key in the system, learning the process of time stamps, and other background information, and will become part of the transceiver security features. Special IC also provides other convenient features such as keyless entry. This feature has been discussed for some time in the automotive industry. After years of automotive safety and RFID (radio frequency identification) in the technological development, and finally can be a multiple antenna structure in the consumption of only a battery identification device (such as key chains, credit card). Connected to the analog front-end processor for low frequency applications such antenna structure, supported by the function is basically nothing to do with the direction of the device, and a very small antenna size, power consumption is greatly reduced. Encryption transceiver is used for anti-theft devices on the second collection of hair, almost completely replaced the first generation of read-only transceiver. TI's digital signature transceiver (DST) is an example, the query / response technology to ensure maximum safety. The third collection of hair are committed to the remote keyless entry function and anti-theft devices to send and receive functions coincide in order to reduce the associated costs. So far, can be judged from the analysis of the stolen vehicle, the transceiver does not decrypt the signs, which confirmed that the current car market reached a very high safety standards. The focus now is how to prevent motor vehicle theft-related fraud. Through careful research, simply comes down to the transceiver theft means of the following: Copy the spare key. A dishonest driver lied to lose the keys to the car dealer to ask for new keys. Three key assumptions in the initial purchase of a car, the driver, he can get a total of five key twice pretend reported missing. They are exactly the same appearance and contains a valid transceiver. When buying a car, the system still accepts only three keys. So that drivers can be effective two keys to the crimes of to insurance companies to produce another three to make others believe that the anti-theft system was cracked. Some vehicle manufacturers central database to keep track of spare keys. One of its advantages is that even if the car is stolen, it can still get the spare key and the key to the total number of relevant information. This information can understand the original and the total number of spare keys. However, to maintain a central database needs to be high cost and data network, and therefore prohibitive for most car manufacturers. DST is TI's fourth collection of hair, it history and diagnostic data are scattered stored in each key,Main products: car dvd and car gps and car dvd player are with good quality. making the car manufacturers to avoid the investment to create and maintain a central database. Rent a car tricks. Rent a car, copy a few mechanical key, remove the transceiver in the original keys, glued to the electronic lock near the antenna (such as the dashboard below). In this way, electronic lock can always be detected "effective" transceiver signal, the car only a mechanical key to open, so the future can easily stolen.
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car gps, car dvd player,
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