Vehicle-mounted heat-preservation cabin control system based on CAN bus

Abstract

The invention discloses a vehicle-mounted heat-preservation cabin control system based on CAN bus. The vehicle-mounted heat-preservation cabin control system comprises a temperature and humidity sensor, a temperature control executing mechanism and a master controller comprising a bus routing list, wherein the temperature and humidity sensor is used for collecting the temperature and the humidity of a vehicle heat-preservation cabin; the temperature control executing mechanism is used for regulating the temperature and humidity of the vehicle heat-preservation cabin; and the master controller is used for finding out the temperature and humidity sensor and the temperature control executing mechanism in working condition through CAN bus polling when the system is electrified and initialized and recording congruent relationship to the bus routing list. When the system works, temperature and humidity information of the heat-preservation cabin is obtained from the temperature and humidity sensor recorded in the bus routing list, the temperature and humidity information is compared with target temperature and humidity information to generate a temperature control instruction, a corresponding temperature control executing mechanism is inquired from the bus routing list, and the temperature control instruction is transmitted to the temperature control executing mechanism to realize temperature and humidity control on the vehicle heat-preservation cabin. By implementing the vehicle-mounted heat-preservation cabin control system, the defects of poor fault-tolerant ability and poor reusability of serial port communication protocol of the existing vehicle-mounted heat-preservation cabin control system can be solved.

Description

technical field [0001] The invention belongs to the technical field of vehicle-mounted thermal insulation cabin control, and in particular relates to a vehicle-mounted thermal insulation cabin control system based on CAN bus. Background technique [0002] The control system of the traditional vehicle-mounted thermal cabin consists of a sensor group, an actuator group, and a thermostat. In order to ensure that several devices can work together better, an efficient, reliable and easy-to-expand communication must be passed between these devices. way of communication. The traditional communication method is based on the serial communication method, but this method is only suitable for the case where the body temperature cabin is not large, and the number of sensors and actuators is small. With the development of model tasks, the volume of the thermal insulation cabin is getting larger and larger, the number of sensors is increasing, and the actuators are becoming more and more ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects and technical requirements of the prior art, the present invention provides a vehicle-mounted thermal insulation cabin control system based on CAN bus, which solves the problem that the existing vehicle-mounted thermal insulation cabin control system has insufficient fault tolerance for large thermal insulation cabins and the serial port communication protocol is not reusable. question

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