Electronic vehicle license plate with double-memory chip

Abstract

The invention discloses an electronic vehicle license plate with a double-memory chip, and relates to electronic technology. The electronic vehicle license plate comprises a simulation front-end module, a memory module and a digit processing control module connected with the simulation front-end module and the memory module; and the memory module comprises a permanent memory cell and an erasable memory cell, and the permanent memory cell is used for storing vehicle registration information. The electronic vehicle license plate overcomes the disadvantages that conventional electronic vehicle license plate is bad in safety and short in storage time.

Description

technical field [0001] The present invention relates to electronic technology. Background technique [0002] US Patent No. 12 / 796,031 discloses a memory, which is referred to in the present invention as an XLPM memory. [0003] Electronic license plates have been widely used in traffic management (including ETC non-parking electronic toll collection system), which are accurate and fast. However, because the electronic license plate information is easy to be copied, it cannot effectively prevent the appearance of fake license plates. In addition, most of the existing electronic license plates use rewritable EEPROM as the memory, which has a very limited storage time and is easily affected by the external environment, such as ultraviolet rays, high and low temperature, other radiation, etc. The influence of the external harsh environment will make the internal information of the electronic license plate Lost, the electronic license plate is prone to problems that are difficul...

AI Technical Summary

Problems solved by technology

[0003] Electronic license plates have been widely used in traffic management (including ETC non-stop electronic toll collection system), which are accurate and fast, but because the information of electronic license plates is easy to be copied, it is impossible to effectively prevent the appearance of fake license plates

In addition, most of the existing electronic license plates use rewritable EEPROM as the memory, which has a very limited storage time and is easily affected by the external environment, such as ultraviolet rays, high and low temperature, other radiation, etc. The influence of the external harsh environment will make the internal information of the electronic license plate Lost, the electronic license plate is prone to problems that are difficult to read or even unrecognizable after being used for a period of time

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