Real-time on-line detection device for working state of cannon photoelectric subsystem

Abstract

The invention discloses a real-time on-line detection device for the working state of a cannon photoelectric subsystem. In the device, a computer simulation stand based on the Windows XP operating system is changed to be a portable ARM embedded-type platform based on the WinCE6.0 operating system, the miniaturization and the simplification of a large-scale detection device are achieved, and quick mounting and flexible use during an external field test are facilitated; meanwhile, over-voltage protection and filter circuits are added on a CAN bus interface circuit, a chip is effectively prevented from being burnt out, and interferences brought by a complex electromagnetic environment where photoelectric equipment locates can be eliminated; detected contents are divided into a system grade module and a plurality of component grade modules by the CPU in the device, when in use, detection can be performed according to actual requirements and modules, therefore, the load of the CPU and the power consumption of the detection device are reduced, real-time on-line diagnosis to the state of the photoelectric system is facilitated, a failure part can be positioned accurately and quickly, the purpose of quick fault recovery is achieved, and manpower and physical resources are saved.

Description

technical field [0001] The invention belongs to the technical field of fault detection, and relates to a fault detection device for a cannon, in particular to a device capable of real-time on-line detection of the working state of a photoelectric sub-system of a cannon. Background technique [0002] A certain type of photoelectric tracking subsystem (hereinafter referred to as the photoelectric subsystem) is a subsystem of a certain type of artillery system. After the system is jointly debugged or delivered to the troops, it will be uniformly controlled by the artillery integrated management system. In order to reduce the communication load of the bus, the integrated management system has limited display ports for detecting the state information of the photoelectric subsystem, and cannot fully know the internal state information of the photoelectric subsystem, resulting in the inability to detect the status of the photoelectric subsystem in real time during system joint debug...

AI Technical Summary

Problems solved by technology

However, the simulation platform uses a hardened computer as the hardware platform and requires AC220V power supply. Due to the high cost, high power consumption, bulky size, uneasy portability, and complicated installation of the simulation platform, it takes a long time for fault location and repair, especially when it is used in the field. particularly prominent, ultimately affecting the tests of the entire artillery system

In addition, the simulation platform itself uses the PCICAN interface card to realize communication with the photoelectric subsystem, and the interface display adopts the full-screen display mode, and the displayed status information is also limited

In the detection process, multiple frames of detection data need to be received in one cycle, and the ID determination, code analysis, and screen display of the multi-frame data in this cycle need to be completed before the data of the next cycle comes. Therefore, the bus data volume is large, the CPU load is heavy, and the interface display The refresh rate is low, resulting in poor real-time debugging and detection, and inconvenient use

At the same time, since this type of photoelectric subsystem is installed in a limited car body space integrated with many electronic devices, the CAN-bus is in a complex electromagnetic environment, and the PCICAN interface of the simulation platform is easily damaged without an effective protection circuit. Fluctuations due to interference, resulting in false positives of detection information, and even burning the interface chip

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