Opening angle measuring device and method thereof

Abstract

The invention provides an opening angle measuring device and a method thereof, and belongs to the technical field of automobiles. The opening angle measuring device solves the problem that the prior art is greatly affected by measuring environments. The device comprises a main controller, a display screen and at least four measuring units, the measuring units are respectively connected to the main controller through wire harnesses, mutual wireless communication among the measuring units is realized, the main controller transmits a control instruction to a reference measuring unit through a wire harness, the reference measuring unit transmits wireless signals to the designated measuring units according to the control instruction, the designated measuring units feed the wireless signals back to the main controller through the wire harnesses, the distance value between each measuring unit and the reference measuring unit is obtained by the main controller according to the propagation speed of a preset wireless signal in the air, the propagation speed of current in the wire harnesses, the known lengths of the wire harnesses and time consumed by the main controller for receiving feedback signals, and the distance values are substituted into a computing model to obtain opening angle values. According to the device and the method, the angle values can be obtained without the influence of the measuring environments.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an opening angle measuring device and a method thereof. Background technique [0002] There are many opening angles on the car that are directly related to the comfort of the man-machine, such as the opening angles of the organic cover and the back door. Therefore, it is necessary to detect various opening angles of the vehicle to verify the performance of various opening angles or the maximum opening angle. . The current angle measuring device generally includes a pointer and a rotatable scale. The pointer and the scale are rotatably connected. However, this angle measuring instrument has no fixed device and is easily affected by the measurement space and angle during measurement. Difficult to fix on hinges for multi-directional measurements. [0003] For example, the Chinese patent literature discloses an angle measuring instrument with the application number 201020291713.5...

AI Technical Summary

Problems solved by technology

This patent solves the technical problem that it is difficult to fix on the hinge and cannot measure in multiple directions when directly measuring the angle

But since it is a direct measurement to obtain the angular velocity

It will still be subject to various limitations of the detection environment and space. For example, this device is not suitable for measuring the opening angle of the machine cover and the back door.

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