How to implement the harness branch allocation and combination function

Once the harness branch assembly sequence is determined, the assembly path planning for each harness branch can be carried out.

Since harness branch assembly path planning is a complex wiring problem with spatial and performance constraints, existing algorithms are difficult to automate harness assembly path planning. Therefore, this paper uses a human-computer interaction method to plan the harness branch assembly path.

The history of electron beam irradiation technology can be traced back to the end of the last century, when it was discovered that X-rays could sensitize photographic film. For a long time, it was believed that irradiation had a destructive effect on polymeric materials, until the 1950s when it was discovered that irradiation could cross-link polyolefins and subsequently graft certain monomers onto polymers through irradiation. After that, the application of irradiation technology in polymeric materials developed rapidly. The irradiation sources used in irradiation technology are mainly of two types: one is natural or artificial radioactive sources, and the other is various types of accelerators. The former, such as the currently widely used γ-ray sources and Cesium-137, Strontium-90, etc.; the latter, such as X-ray tubes, linear accelerators, cyclotrons, and other high-energy devices. Their working principle is to excite polymer molecules through high-energy radiation and cause ionization; decomposition of positive and negative ions; neutralization of charges, and further initiate various chemical reactions, especially free radical reactions. Because irradiation technology has no special requirements for material morphology and irradiation conditions, the irradiation reaction is easy to control (the degree of crosslinking can be precisely controlled), the irradiation is uniform, and the reproducibility is good. The product purity is high, and continuous production of wires and harnesses can be carried out, thus being considered a new processing technology with high production efficiency, energy saving, low process cost, high efficiency, and no or little pollution. In addition, electron beam irradiation technology is also suitable for materials that cannot be cross-linked by chemical methods, such as PVC and PP, and insulators and sheaths with complex structures, which has posed a serious challenge to organic peroxide crosslinking technology.

For intermediate stripping and single-pair wiring, the single-pair wiring diagram can be correctly drawn based on this information. However, for complex segmented single-pair wiring (such as ultrasonic welding), the main line needs to be cut from the single-pair wiring point to become two loops. The system automatically generates the number of the new loop. If there are multiple single-pair wiring points on a main line, new loop numbers are generated by cutting from the single-pair wiring points in sequence. In the new loop number, the left end of the first segment and the right end of the last segment are respectively crimped to the connectors at the left and right ends of the main line before cutting, and the other end is single-paired; the two ends of the remaining loop numbers are respectively single-paired with the previous and subsequent segments.

According to the input method of harness information, it can be seen that the harness branch points and start and end points between nodes belong to a tree structure, and the two ends of the wire are connected from nodes at any depth of the tree. By using a recursive algorithm to find the lowest common parent node of the two nodes where the two ends of the wire are connected, the path of the wire can be obtained, so that the wire length can be calculated and the direction of the single-pair wire can be determined.