| 摘要 |
A control system is used for determining a rotational direction of a ratchet that will output a pair of digital signals. The control system includes a microprocessor and a memory. The microprocessor is electrically connected to the ratchet for receiving the pair of digital signals. Afterwards, the microprocessor will compare the pair of digital signals with the previously stored pair of digital signals to determine if a conditional signal for determining the rotational direction of a ratchet is transmitted to a CPU or not. The memory is electrically connected to the microprocessor for storing the pair of digital signals.
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