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A method for overcurrent protection of an airborne photoelectric stabilization platform

A photoelectric stabilization platform, overcurrent protection technology, applied in emergency protection circuit devices, electrical components, etc., can solve the problem of motor and power amplifier module burnout, and achieve the goal of suppressing burnout, improving versatility and portability, and reducing manpower allocation. Effect

Active Publication Date: 2017-09-29
凯迈(洛阳)测控有限公司
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an overcurrent protection method for an airborne optoelectronic stabilized platform to solve the problem that the motor and power amplifier module are burned due to motor blockage in the existing airborne optoelectronic stabilized platform under abnormal conditions

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  • A method for overcurrent protection of an airborne photoelectric stabilization platform

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Embodiment Construction

[0018] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the overcurrent protection method of the airborne photoelectric stabilized platform of the present invention is by judging whether the motor current is greater than the set value, and if it is greater than the set value, judging whether the change in the resolver angle value of the platform within the specified time is less than the set angle, If it is less than the set angle, it is determined that the platform is in an abnormal state, and the motor overcurrent protection action is executed.

[0020] The motor overcurrent protection action of this embodiment is achieved by outputting a 50% duty cycle of the motor and turning off the relay of the motor at the same time; and judging whether the motor current is greater than the set value is by judging that the duty cycle of the motor deviates from 50% Whether t...

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Abstract

The invention discloses an overcurrent protection method for an airborne photoelectric stabilized platform, which judges whether the motor current is greater than the set value, and if it is greater than the set value, determines whether the change in the rotary angle value of the platform within a specified time is less than the set angle, If it is less than the set angle, it is determined that the platform is in an abnormal state, and the motor overcurrent protection action is executed. The airborne optoelectronic stabilization platform overcurrent protection method of the present invention is more convenient to realize, and does not need to increase additional cost: does not need to change the existing hardware conditions of the product, such as structure or hardware circuit, only needs to add corresponding programs in the software. It can realize the function of over-current protection, which reduces the cost of research and development and shortens the development time; it also has good versatility and portability: it can be directly transplanted to other optoelectronic devices for improvement of over-current protection; in addition, it can Timely suppress the burnout of the power amplifier caused by the abnormality of the platform, reduce maintenance costs and manpower allocation, and enhance the reliability of the platform.

Description

technical field [0001] The invention belongs to the field of overcurrent protection of a stable platform, and in particular relates to an overcurrent protection method of an airborne photoelectric stable platform. Background technique [0002] Airborne optoelectronic systems are widely used in the fields of reconnaissance, measurement, and electro-optical countermeasures. The airborne optoelectronic stabilization platform is one of the important equipment for aerial reconnaissance. It can quickly capture, track, and aim at moving targets in an airborne environment. [0003] With the development of the carrier aircraft from low altitude and low speed to high altitude and high speed, in order to resist the large wind resistance torque of the airborne photoelectric system, the servo motor adopted also develops in the direction of high ground rated torque, and the starting current can often reach 20 to 30 amperes. The torque impact of the torque can easily damage the transmissio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/085
Inventor 王蕾习贵平夏军王宗俐程明阳
Owner 凯迈(洛阳)测控有限公司
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