Multi-rate toll collector for bus
A technology of buses and toll machines, which is applied to fare meters, ticketing equipment, instruments, etc., can solve the problems of delaying payment time, increasing the workload of drivers, and increasing the difficulty of passenger payment, so as to speed up payment time and facilitate passengers.
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[0017] 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.
[0018] 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.
[0019] 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).
[0020] 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.
[0021] The memory (3) is 28C2...
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