Design And Implementation Of High Energy Particle Detection Data Communication Management Module

Earthquake in the development of human civilization,it brought a catastrophic loss everytime,these losses are difficult to estimate.Especially in recent years,the earthquake caused frequent economic losses to the people,but also to the people's lives and safety has brought great harm,the earthquake is one of the most serious disaster on Earth.But there is still no effective way to predict earthquakes now,so the early prediction of earthquakes is extremely important.In this paper,a high energy particle detector is designed by the background,which brings a scientific basis for earthquake prediction.According to the data analysis report of the load satellite,it is concluded that the energy change of the particle is related to the earthquake occurrence.In the radiation zone of 350 km to 1250 km away from the Earth,the detectors have captured the phenomenon of increasing the number of charged particles in the energy interval between 2 and 4 hours before the earthquake.The high energy particle detector is one of the eight payloads of the electromagnetic monitoring test satellite.The main scientific goal is to realize the screening of high energy charged particles mainly electron and proton,particle incident direction and particle energy measurement.By studying the results of the measurement of space electromagnetic particles,we can explore the possible relationship between the energy variation of space energy particles and the electromagnetic radiation caused by earthquakes.This paper analyzes and studies the design and implementation of data communication management module of high energy particle detector in detail.Firstly,the background and significance of high energy particle detector research are introduced,and the research status of particle detectors both at home and abroad is introduced.As a result of my experience at the Institute of High Energy Physics,I have a better understanding of the design and implementation of high-energy particle detectors.Then the working principle of high energy particle detector is expounded.The high-energy particle detector consists of several modules consisting mainly of telescope systems,calorimeters,anti-coincidence detectors,data acquisition modules and data communication management.The metering device takes the plastic scintillator and the CsI crystal,and then passes the energy of the collected particles through the ADC to the data acquisition system.The silicon bar detector is the angle at which high-energy particles are collected and also passed to the data acquisition module.Data acquisition module through the FPGA and single-chip processing after the data package through the RS422 passed to the satellite platform.The functions of each part of high energy particle detection are introduced,and then the three techniques of HEPP-H particle identification,HEPP-H angle measurement and HEPP-H energy measurement are discussed.In the hardware,through the query a lot of information,designed the data communication management module circuit schematic.Schematic diagram of the main function module contains 5V power supply circuit,RS422 send and receive module circuit,single chip S80C32 E interface circuit,watchdog MAX706 circuit,CAN controller chip SJA1000 and CAN transceiver PCA80C250 circuit,clock circuit.In the software,this article in the keil compiler environment with C language design procedures.The program is based on the ZH-1 satellite CAN bus communication protocol and data protocol design.The program includes main function module,serial interrupt module,delay program module and SJA1000 program module.Finally,the data communication management module of the entire system of functional testing has been tested.Including the data communication management module main circuit and backup circuit power supply test.As well as CAN bus baud rate and command response time test.Finally,the variable speed polling command,the slow polling instruction,the indirect instruction and the GPS timed broadcast instruction output format are tested.According to the requirements of the ZH-1 satellite CAN bus communication protocol and data protocol,it is tested to meet the reliability requirements of aerospace products.