Limit detection method and system for two-axis four-frame photoelectric stabilization platform

Abstract

The present invention discloses a limit detection system for a two-axis four-frame photoelectric stabilization platform. The system comprises a plurality of proximity sensors, a signal acquisition module and a signal processing module; the plurality of proximity sensors are used for detecting the limits of the four frames of the two-axis four-frame photoelectric stabilization platform, wherein the limits include an inner orientation frame left limit, an inner orientation frame right limit, an inner pitching frame upper limit, an inner pitching frame lower limit, an outer pitching frame upper limit, an outer pitching frame lower limit and an outer orientation frame zero position; the signal acquisition module is used for acquiring the signals of the proximity sensors, converting the signals into digital signals and sending the digital signals to the signal processing module; and the signal processing module is used for receiving the signals of the signal acquisition module, processing the signals and judging whether each of the proximity sensors reaches a limit value. According to the limit detection system of the invention, the plurality of proximity sensors are adopted, and therefore, the wiring workload of a limit detection circuit can be greatly reduced, a wiring process is simplified, and the reliability of the system can be improved.

Description

technical field [0001] The invention relates to the field of photoelectric stabilization platforms, in particular to a limit detection system and method for a two-axis four-frame photoelectric stabilization platform. Background technique [0002] The high-precision two-axis photoelectric stabilization platform generally adopts the structure of two axes and four frames. Due to the limited angle range of the frame, it is necessary to use a limit detection device to detect the limit position. [0003] At present, traditional limit detection devices mainly use Hall effect-based Hall sensors or photoelectric proximity switches. There are three main problems in using the above two limit detection methods: first, the signal output voltage does not match the receiving and processing chip, and a voltage conversion chip needs to be added, which increases the complexity of the circuit; second, when the limit signal is relatively large For a long time, it increases the difficulty of wi...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical defects existing in the existing limit detection method

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