A New Scheduling Algorithm for Vehicle Inspection and Control System

Abstract

The invention discloses a new dispatching algorithm of a vehicle detection and control system. In order to improve the efficiency and quality of vehicle dispatching of the vehicle detection and control system, the existing dispatching algorithms based on shared files and winsocket are analyzed and compared, and a winsocket-based scheduling algorithm is proposed. A new vehicle detection scheduling algorithm with network database. A scheduling table is designed for the scheduling and status monitoring of the workstations by the master computer. The detailed scheduling implementation process is given, and the detection process information of the station computer is transmitted to the main control computer through winsocket. The practical application shows that the algorithm improves the stability of the system operation and the real-time and reliability of the detection data transmission.

Description

technical field [0001] The invention belongs to the technical field of dispatching algorithms, and relates to a novel dispatching algorithm for a vehicle detection control system, specifically, a novel dispatching algorithm for vehicle detection combined with a winsocket and a network database. Background technique [0002] With the continuous and rapid development of my country's economy and society, the number of motor vehicles has shown a rapid growth trend. According to the statistics of the Traffic Management Bureau of the Ministry of Public Security, by the end of 2017, the number of motor vehicles in the country reached 310 million, of which 217 million were cars, which was comparable to that in 2016. Compared with the annual increase of 23.04 million, an increase of 11.85%. Automobile safety performance testing is one of the important measures to ensure road traffic safety. Relevant state departments attach great importance to it, and successively formulated a series ...

AI Technical Summary

Problems solved by technology

There are many problems in this method: 1. In the actual use process, it often occurs that the shared folder cannot be accessed due to virus reasons or security policy settings, and the entire system cannot be scheduled or even paralyzed; 2. The workstation or the main control machine wheel Querying inspection information or result information consumes a lot of CPU resources, especially the main control program, which needs to process more tasks, which reduces the real-time performance of system scheduling. The more stations, the worse the real-time performance, which is not conducive to system expansion.

3. The reliability of the system is poor. Once the inspection information file of the station computer is damaged or misoperated, the system cannot operate normally

The scheduling algorithm uses the TCP handshake mechanism to ensure the reliability of data transmission, which is better than the file sharing method as a whole, but it also has the following shortcomings: (1). Both the command frame and the data frame are realized by the master computer and the workstation through winsocket In the exchange between machines, the command frame data volume is small, and the data frame data volume is large. Especially in recent years, the national regulatory authorities have required the transmission of large-capacity data such as braking force curves, station detection pictures, and videos. This data transmission method is prone to frame loss. , implementation complexity, system reliability, real-time performance reduction

(2). When the i-th station computer has a failure such as power failure or restart, after the software is restarted, the detection information is lost, and it is necessary to wait for the main control computer to resend the inspection information

(3). After the motor vehicle safety inspection agency is connected to the supervision platform, the process control of the detection cycle is realized. If the detection of a certain axis of braking is completed, an abnormality occurs in the detachment network or the detection software is abnormally interrupted, it can only be continued through business withdrawal. inspection, which brings inconvenience to the inspection agency and reduces the inspection efficiency

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