The wire is the main body of the wire harness, which transmits energy and electrical signals in the car.

Bellows. When in use, the wiring harness is spread all over the body, and the wires are easily affected by friction, high temperature, acid and alkali and other special environments. The corrugated tube can protect the wire to avoid damage to the wire due to special circumstances.

tape. Adhesive tapes are widely used in the production of automotive wiring harnesses, which can perform functions such as bundling, fixing and marking wires, and can also provide certain protection to the wires. In order to effectively collect the automobile wiring harness, wiring boards are used to arrange the wiring harness. Wiring board

There are multiple wiring clips, which can fix the wiring harness to avoid accidents such as deformation and shaking of the wiring harness during image capture. As shown in Figure 31, a complete wire harness has a complex structure with many branches on the wire harness. According to different functional requirements, the branch processing measures are different: some branches are only covered with tape; some wiring harness branches with harsh working environment need to be protected by corrugated pipes, and tape is wound on the corrugated pipes.

At the same time, it can be seen from Figure 31 that the color of the bellows and the tape are both black, which is difficult to distinguish in the image. In order to solve this problem, when the image is collected, the influence of external light on the image contrast should be avoided. Therefore, this experiment adopted the method of supplementing light in the dark room to take pictures. In a dark room, a specific light source is used to provide light, the brightness of the light source is adjusted by adjusting the current, and the contrast of the corrugated tube and tape area on the captured image is observed to select the best light intensity.