Because the principle of a certain type of tank fire control system is complex and the control signal is transient, the fire control system of a certain type of tank mainly depends on the distribution of detection equipment for fault detection, but there is no corresponding rapid detection equipment for the maintenance personnel in the process of its work, resulting in a single detection means. Troubleshooting is difficult. By studying the core component of gun control system, the detection port of gun control box. Measuring the signal of the detection port of the gun control box is the basic method to eliminate the fault of the fire control system. It is very necessary to measure the signal of the detection port quickly and conveniently. Therefore, the demand of rapid detection equipment for gun control box is obvious. This paper designs and manufactures the rapid detection equipment of the detection port, which provides the corresponding technical means for the rapid detection and fault diagnosis of a certain tank fire control system in the army. The signal value of each pin of the socket of the test port of the gun control box is to show the status value of the normal operation of the fire control system, and to detect the signal of each pin can quickly isolate the components of the system fault, and determine the fault location by signal fault tree analysis, so as to improve the speed of judging the fault. The test equipment of gun control box is mainly used to measure the signal of the test port of gun control box. When fault detection is carried out, the signal to be measured can be obtained quickly and conveniently for analysis. Therefore, the starting point of designing and manufacturing the rapid detection equipment for the gun control box is mainly to provide a simple and convenient detection equipment for troubleshooting a certain type of tank fire control system, and to provide data information for fault analysis. 1. The Design Principle of the Detection Box A certain type of tank gun control box rapid detection equipment, mainly is the gun control box detection port signal acquisition input to the multi-channel conversion circuit, through the single-chip computer keyboard management design, control keyboard input to select the signal to be measured, analog channel switching circuit design, can be the gun control box detection signal of any signal value on-off, in the display Dynamic display of data and signal waveform on the oscilloscope (using a small "digital oscilloscope", digital oscilloscope can not only display the size of the signal, but also display the waveform and transient state of the signal. Corresponding detection signals can be quickly obtained, which is convenient for quantitative analysis of the system, and then to determine the failure parts. The block diagram is shown in the diagram[1] . When the function of the detection box is expanded, the detection ports of other components can be connected. Just connect the pin number of the port according to the programming address, the pin number and keyboard program can be used for other port measurement. Of course, the number of ports connected is limited[2] . 2. The Realization Principle of the Detection Box Detection box uses the management and control function of single chip microcomputer to realize selective and purposeful detection of signal pins to be measured. The signal pins of gun control box 2019 2nd International Conference on Intelligent Systems Research and Mechatronics Engineering (ISRME 2019) Copyright © (2019) Francis Academic Press, UK DOI: 10.25236/isrme.2019.010 49 are all connected to the detection box by means of switching connectors. When the signal value of a pin needs to be measured, the corresponding number is input on the keyboard and controlled by single chip microcomputer to be connected to the detection box. The signal circuit in the measuring box is connected with the oscillograph and the magnitude of the measurement is displayed on the oscilloscope. The numeric value of keyboard input is displayed by digital tube, which is convenient for accurate input. 3. Circuit and Software Design Hardware design principle: the detection box mainly consists of five parts: gun control box signal acquisition interface, multi-switch conversion circuit, keyboard input and read, single-chip microcomputer using Atmel AT89C52 core processor, micro-digital oscilloscope temporary selection model, the system uses 11.090MHz crystal oscillator, two digital tubes, single-chip microcomputer for the P0 port. At the input control end of the keyboard, the lower four bits are rows, the higher four bits are columns, the P1 port is used for the display of the digital tube, the P2 port is the output port, the P2.0-P2.3 is the segment selection, and the P2.4-P2.7 is the bit selection input terminal[4] . The technical route of the scheme is to collect signal by interface line, input data by keyboard, control signal conduction by AT89C52, display signal value by micro-digital oscilloscope, read by 4 ×4 matrix keyboard, draw schematic diagram by Protel software, and complete software programming by keil software. When the function of the detection box is expanded, the detection ports of other components can be connected. Just connect the pin number of the port according to the programming address, the pin number and keyboard program can be used for other port measurement. Of course, the number of ports connected is limited. 3.1. Core Processor AT89C52. 89C52 is the basic product of the MCS-51 series microcontroller of INTEL company. It adopts the reliable CMOS technology of Atmel company to manufacture the high-performance 8-bit microcontroller. It belongs to the standard MCS-51 HCMOS product. It combines the high-speed and high-density technology of CMOS with the low-power characteristics of CMOS. It is based on the standard MCS-51 microcontroller, architecture, and Instruction system. It is an enhanced version of 89C51 MCU, which integrates clock output and up or down technology, and is suitable for various control applications. 89C52NEIZHI 8-bit CPU, 256-byte internal data memory RAM, 8K on-chip program memory (ROM), 32 bidirectional input/output (I/O) ports, 3 16-bit timing/counter and 5 two-stage interrupt structures, a full-duplex serial communication port, on-chip clock oscillation circuit. In addition, 89C52 can also work in low power mode, and can select idle and power down mode through two kinds of software. Freeze CPU in idle mode, while RAM timer, serial port and interrupt system maintain its function. Power down mode, to maintain RAM data, always stop and stop other functions in the chip. 89C52 has PDIP (40 product pin) and PLCC (44pin) two package forms. Structural features: 8-bit CPU; on-chip oscillator and clock circuit; 32 with I/O interface; external memory addressing range ROM, RAM64K; 2 16-bit timing/counter; 5 interrupt sources, 2 interrupt priority; full duplex serial port; Boolean processor. 3.2. 4×4 Matrix Keyboard. The parallel port P0 of the MCS-52 is connected with a 4*4 matrix keyboard. The low 4-bit P 0-P 0.3 is used as the row and the high 4-bit P 0.4-P 0.7 is used as the row. Matrix keyboard can effectively save chip port and high efficiency. Matrix keyboard is shown in Fig.1.

Aiming at the problems of long life cycle and high cost of mechanical component wear life test, this paper proposes a virtual prototyping simulation technology to the study of wear failure Reliability Enhancement Testing (RET). Based on the analysis of wear failure, the Enhancement testing mechanism based on wear failure is proposed, the wear failure test technology principle based on virtual prototype simulation technology of RET is determined, and the Enhancement Coefficient is deduced. Taking a feeding mechanism as the research object, the virtual prototype model was established, and the study of RET about wear life of the pin and pin hole was simulated. The results show that the adopted technical scheme is feasible and provides a useful reference for the application of virtual prototype technology in the field of RET.