Odometer calibrating device
A technology of calibration device and odometer, applied in measuring devices, instruments, etc., can solve the problems of small driving speed range, excessive circuit board size, large rotation speed error, etc., to increase the driving speed range, ensure rotation speed accuracy, peripheral The effect of circuit simplification
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[0047] 1. The driving device is composed of a stepping motor, a motor driver, a code disc with a magnetic steel sheet, a Hall sensor, etc., which can drive the vehicle odometer or the odometer of the vehicle inertial positioning and directional navigation device to rotate at the set speed and direction;
[0048] 2. The control box is composed of DSP control circuit, touch screen, etc. It is used to set the motor speed and direction; control the start and stop of the odometer calibration device; control the acceleration and deceleration of the motor; display the speed and mileage.
[0049] The specific technical indicators of the odometer calibration device are as follows:
[0050] 1. The distance between the driving device and the control box is greater than 5 meters, and they are connected by a cable;
[0051] 2. The relationship between the number of revolutions and the mileage: 588.813 revolutions per kilometer;
[0052] 3. Display mileage (maximum): 200,000 meters, odo...
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