An autonomous distribution control device on a launch vehicle rocket

Abstract

The invention relates to an autonomous distribution control device on a carrier rocket, which is composed of a power module, a communication control module, a relay driving module, a relay board module and a condition monitoring module. According to the test procedure, the power is supplied to the autonomous power distribution control device through the RS422 bus in turn, power-on and power-off commands, the communication control module outputs the corresponding IO control signal through the microprocessor after receiving the instruction, the signal power is amplified by the relay drive module, The corresponding relay in the relay board module is driven to operate so as to turn on or off the ground power supply or the path between the battery and the electric equipment. The condition monitoring module collects the distribution signals such as the internal voltage and current, and sends them to the external ground equipment for display and monitoring through the communication control module. As the RS422 bus communication is adopted between the rocket and the ground, and the autonomous distribution control device has a built-in microprocessor, the autonomous distribution control device on the carry rocket of the invention has the characteristics of good intelligence, autonomy and universality.

Description

technical field [0001] The invention relates to the field of power supply and distribution systems for launch vehicles, in particular to an autonomous power distribution control device on a launch vehicle. Background technique [0002] The launch vehicle is the foundation of space activities, and the electrical system is an important part of the launch vehicle. During ground testing and flight, it is necessary to supply and distribute power to the electrical equipment of the electrical system. The existing power supply and distribution equipment consists of equipment on the arrow and ground equipment. The equipment on the arrow includes batteries and distributors. Power distribution control between electrical equipment; ground equipment includes ground power supply, control microcomputer, measurement and control combination, transmission control combination and front-end PLC, etc., which are used to provide power supply, implement power distribution control and parameter sam...

AI Technical Summary

Problems solved by technology

[0004] 1) The composition of ground power supply and distribution equipment is complex

[0005] Since the power supply and distribution control and sampling functions are all realized by ground equipment, the ground needs to be equipped with various control and sampling equipment such as control computer, measurement and control combination, transmission and control combination, and front-end and back-end PLC, resulting in a huge composition of ground power supply and distribution equipment. The interface relationship between ground equipment is complex, and there are a large number of control commands and test circuit interactions, which significantly increases the complexity of arrow-ground circuit design

[0006] 2) Low level of intelligence on the arrow

[0007] Since the distribution device on the arrow itself has no independent control and testing capabilities, it needs to use ground equipment and measurement systems to realize the power supply and distribution control and distribution parameter sampling of the electrical equipment on the arrow. The intelligent level of the arrow is low, which aggravates the work of the ground equipment Burden, not in line with the current development trend of electrical system intelligence;

[0008] As an important part of the electrical system of the launch vehicle, the power supply and distribution system of the launch vehicle is responsible for the power supply and distribution management and energy supply of the whole rocket's electrical equipment. The rocket and ground cables are complex. With the rapid development of electronic technology and integration technology, it is necessary to develop an autonomous power distribution control device on the launch vehicle with the characteristics of intelligence, autonomy and generalization, so as to realize the power supply and distribution of the rocket to the ground. Optimal configuration of equipment

Images