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Multi-sensor time synchronization method and system for UAV power inspection

A technology of time synchronization system and power inspection, which is applied in the field of power grid, can solve the problems of complex implementation and poor synchronization effect, and achieve good synchronization effect

Active Publication Date: 2016-06-08
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

[0005] Based on this, it is necessary to solve the problems of complex implementation and poor synchronization effect when the existing time synchronization method is used for UAV circuit inspection, and provide a multi-sensor time synchronization method with simple implementation and good synchronization effect for UAV power inspection. Synchronization method and system

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0023] Such as figure 1 As shown, a multi-sensor time synchronization method for unmanned aerial vehicle power inspection, including steps:

[0024] S100: Obtain the time signal of the clock crystal oscillator in the drone.

[0025] The time signal of the clock crystal oscillator in the drone mentioned here can be understood as a time signal carried by the drone itself. This time signal is a time signal generated by a certain clock crystal oscillator module. The time signal of the clock crystal oscillator in the drone can be understood It is the UAV local time signal.

[0026] S200: Receive an external GPS sign...

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Abstract

The invention provides a multisensor time synchronization method for unmanned plane power patrol and a system thereof. A GPS absolute time signal is obtained by integrating a local clock crystal oscillator signal and a GPS time signal. Then, operation trigger pulse of multisensors is detected by the utilization of the GPS absolute time signal so as to obtain absolute GPS absolute time of each operation of the sensors. Difference of sensor motion positions during the power patrol process of an unmanned plane is fully considered, and synchronous compensation time of the sensor motion positions is calculated so as to realize multisensory time synchronization. During the whole process, the absolute GPS absolute time of each operation of sensors of different types can be obtained simply. In addition, the difference in time synchronization caused by the position difference is fully considered, and time coordinate for motions of each sensor is measured accurately so as to realize multisensor time synchronization.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a multi-sensor time synchronization method and system for unmanned aerial vehicle power inspection. Background technique [0002] The power safety line inspection technology based on the unmanned helicopter multi-sensor system is the latest demand for the daily safety maintenance and emergency response of high-voltage and ultra-high voltage power lines in my country. On the one hand, this technology can greatly improve the current manual line inspection. High work efficiency, reduce personnel consumption, especially power line safety inspection under complex terrain and obstacle conditions, on the other hand, a variety of sensor information also greatly facilitates the completeness and accuracy of power line safety status detection. [0003] Its sensor types mainly include visible light cameras, infrared thermal imaging cameras, ultraviolet imagers, high-definition digital vid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 王锐蔡艳辉彭向阳胡锐王柯李谦麦晓明张金铎余欣马远向
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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