Title: Tax Controller
Application Number: 200520119711 Application Date: 2005.12.08
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2007.01.17 Granted Pub. Date: 2007.01.17
International Classifi-cation: G07G1/12;G07G1/00
Applicant(s) Name: Shenzhen Changcheng Kaifa Technology Co., Ltd. Address:
Inventor(s) Name: Huang Xin;Wang Hongxing;Wei Youkun
Attorney & Agent: guo weigang
Abstract:
    The utility model relates to a tax controller comprising a power module, a main control module, a data storage module, a real-time clock module, a user card module, a tax control card module and a communication interface module. Said power module connects to the data storage module to supply power for it through a filter. Because the tax controller of this utility model adds a special anti-interference device into the data memory power port during the data storage, the interference factor produced by the power system is greatly restrained, the reliability of the data storage and the complete machine working is increased. The tax controller of the utility model adopts selfrecovery fuse to protect the user power supply circuit, when the third party proceeds all kinds of physical attacks, the power supply current of the user card will be suddenly increased, if the current exceeds the design value, the fuse will automatically break to promise not to influence the normal work of other modules, when the physical attack is released, the fuse will recover and the operation to the user card will return to normal.
Time: 10
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