On-line detection system for multiple parallel batteries of unmanned aerial vehicle

Abstract

The invention discloses an on-line detection system of multiple parallel batteries of an unmanned aerial vehicle. The on-line detection system comprises a start-up control circuit, a plurality of battery on-line signal acquisition circuits, a plurality of corresponding signal isolation circuits and a plurality of corresponding display circuits, wherein an input port of each signal isolation circuit is connected with an output port of the corresponding battery on-line signal acquisition circuit, a first signal output port of the signal isolation circuit is connected with an input port of the corresponding display circuit, second signal output ports of the plurality of signal isolation circuits are sequentially connected in series and then are connected with an input port of the start-up control circuit, and an output port of the start-up control circuit is used for outputting a start-up control instruction of the unmanned aerial vehicle. By the on-line detection system, no leakage insertion in place and no start of a power supply during starting the unmanned aerial vehicle can be achieved, the situation that heavy load gesture adjustment margin is not enough to cause explosion aftertake-off is prevented, the battery on-line condition can be detected in real time, and the situation that the battery is loosen during flying to cause instantaneous explosion is prevented.

Description

technical field [0001] The invention relates to the technical field of on-board power supply for drones, in particular to an on-site detection system for parallel-connected multi-batteries of drones. Background technique [0002] At present, the field of unmanned aerial vehicles is developing rapidly, and the models are getting bigger and bigger, and the load capacity is getting stronger and stronger. The power output of the onboard power supply system is getting bigger and bigger. Due to the limited space in the cabin, the battery needs to be split, or combined or String to meet the dual requirements of power and structure. The current mainstream battery connection method is parallel connection. However, in actual use, there are still insufficient margins for heavy-load attitude adjustment after take-off caused by battery leakage during startup, and the aircraft crashes. [0003] The current conventional battery presence detection methods are limit switch trigger (hard tri...

AI Technical Summary

Problems solved by technology

The limit switch trigger method is prone to the problem of loosening the limit due to the machining accuracy of the drone or the vibration during flight; the current differential sampling method, because the resistance is connected in series to the main circuit will cause heat loss, which will cause the loss of electric energy.

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