Design of Test System Used for Infrared Earth Sensor Based on P89C51 Microcontroller and Delphi

According to the particularity of infrared earth sensor used on the satellite,a test system based on P89C51 microcontroller and Delphi and used on the ground for the infrared earth sensor was designed.Powerful functions such as RS-232 serial port communication,RS-422 serial port communication,data buffer storage,producing electric signal and so on were included in the test system.The upper software was compiled and debugged in the Delphi integrated development environment and had friendly interface and powerful function.Tasks such as calculating attitude angle and random noise equivalent angle,showing data curve and sending out instructions and controlling two-dimensional turnplate could be completed by this upper software.The test system could simulate the computer of the satellite to control the infrared earth sensor and exchange data with it.A semi-physical emulational environment had been offered for producing,debugging and testing.