Distance measuring device
A distance measuring device is provided. The distance measuring device includes: a distance sensing unit, for sensing a distance value of a target object; a drive unit, for driving the distance sensing unit to rotate according to a rotation angle; and a compensation unit, for providing a compensation value according to the rotation angle and obtaining an actual distance according to the compensation value and the distance value.
1. A distance measuring device, comprising:
a distance sensing unit, for sensing a distance value of a target object;
a drive unit, for driving the distance sensing unit to rotate according to a rotation angle, comprising:
a seat, for disposing the distance sensing unit;
a gear, located on a side edge of the seat;
a rack, engaged with the gear; and
a cam, revolving to drive the rack to displace reciprocally and driving the gear to rotate by the rack, so as to drive the seat to rotate; and
a compensation unit, for providing a compensation value according to the rotation angle and obtaining an actual distance according to the compensation value and the distance value.
2. The distance measuring device according to claim 1 , further comprising: a revolving unit for driving the distance sensing unit to revolve according to a revolving angle.
3. The distance measuring device according to claim 2 , wherein a rotation direction of the drive unit is substantially perpendicular to a revolving direction of the revolving unit.
4. The distance measuring device according to claim 2 , wherein the compensation unit provides the compensation value according to the revolving angle.
5. The distance measuring device according to claim 1 , wherein the distance sensing unit comprises an emitter and a receiver, the emitter is used fir emitting a distance measuring signal, and the receiver is used for receiving the distance measuring signal reflected by the target Object.
6. The distance measuring device according to claim 5 , wherein the emitter is a laser emitter.
7. The distance measuring device according to claim 5 , wherein the emitter is an infrared emitter.
8. The distance measuring device according to claim 5 , wherein the emitter is an ultrasonic emitter.
9. The distance measuring device according to claim 1 , wherein the drive unit is a motor.
10. The distance measuring device according to claim 1 , wherein the compensation unit is a multi-link reciprocating mechanism.
11. The distance measuring device according to claim 1 , wherein the compensation unit is an encoder.