Multi-rate toll collector for bus
A toll machine and multi-rate technology, applied in fare meters, ticketing equipment, instruments, etc., can solve the problems of increasing the driver's workload, delaying the payment time, and increasing the difficulty of passengers' payment, so as to facilitate passengers and speed up the payment time Effect
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[0018] figure 1 It is a functional block diagram of a multi-rate toll collection machine. Each chip is connected according to the reference circuit given in its manual, and the microprocessor is connected according to the address bus, data bus, and control bus.
[0019] MCU (1) is the main control microprocessor, select STC11F16XE, connect to the card reading and writing circuit (2), receive the card reading information; connect to the voice chip (6), control its pronunciation; connect to the digital tube driver (4), provide display information.
[0020] The voice chip (6) is ISD2560, its output is connected to the power amplifier TDA2030 (7), and the output of the power amplifier (7) is connected to the speaker (8).
[0021] Nixie tube driver (4) choose 8279, use one piece to drive 8 nixie tubes to display the deduction value of 4 card swiping areas respectively, and use another piece to drive 6 nixie tubes to display the balance of the card.
[0022] The memory (3) is 28C...
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