Card read terminal of information management system suitable for group long-distance running activity
An information management system and card reading terminal technology, applied in the field of embedded systems, can solve the problems of many long-distance running, inconvenient statistics, low efficiency, etc., and achieve the effect of facilitating popularization, improving test efficiency and low equipment cost
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[0025] The present invention is a card reader terminal suitable for an information management system of group long-distance running activities, comprising a power supply module, a card reader module, a liquid crystal display module, a wireless module, and a first controller module;
[0026] The power module includes a 5V voltage conversion circuit and a 3.3V voltage conversion circuit;
[0027] Such as figure 1 As shown, the 5V voltage conversion circuit includes a power management chip U1 LM2596S, a first polarity capacitor C1, a second polarity capacitor C2, a first inductor L1 and a Zener diode D1, and the anode of the first polarity capacitor C1 is connected to the power management chip Pin 1 of U1 LM2596S is connected to the 12V power supply, the negative pole of the first polarity capacitor C1, pin 3 of the power management chip U1LM2596S, pin 5 of the power management chip U1LM2596S, the anode of the Zener diode D1 and the second polarity capacitor The negative pole of...
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