Discharge anti-spark method for battery management of unmanned aerial vehicles

Abstract

The invention discloses a discharge anti-spark method for battery management of unmanned aerial vehicles, which includes the following steps: a discharge MOS tube S1 is closed when a battery discharge current sampled by a micro control system C1 is less than a certain threshold; and when a current source Y1 is turned on again, a signal will be sent to the micro control system C1, the micro control system will determine that a battery B1 has been connected to an unmanned aerial vehicle control system R1, the micro control system will delay the switch-on of the discharge MOS tube S1, so that no current is generated when the battery contacts the unmanned aerial vehicle control system R1, and discharge spark is prevented. The technical method of spark prevention for first power-on and discharge of an unmanned aerial vehicle battery management system by adding a tiny current source and a micro control system not only can supply power to the unmanned aerial vehicle control system to make the unmanned aerial vehicle control system work, but also can realize power-on spark prevention and solve the problem of how to prevent battery discharge spark of unmanned aerial vehicles with low cost and high reliability.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a method for managing discharge and preventing sparking of unmanned aerial vehicles. Background technique [0002] With the rapid development of science and technology and the improvement of people's living standards, as well as the aging population and the shortage of labor force, more and more jobs are replaced by automation equipment, but more and more jobs are done in the field It is also replaced by drones, such as earthquake relief, forest fires, flood relief and other disaster relief scene aerial photography technology, which uses drone technology, and high-voltage line field inspection technology in the power field also uses drone aerial photography technology, and agricultural Vegetation spraying pesticide technology in the field also applies UAV technology. UAVs are divided into electric UAVs and fuel UAVs. Fuel UAVs are too expensive to be used in dail...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of science and technology and the improvement of people's living standards, as well as the aging population and the shortage of labor force, more and more jobs are replaced by automation equipment, but more and more jobs are done in the field It is also replaced by drones, such as earthquake relief, forest fires, flood relief and other disaster relief scene aerial photography technology, which uses drone technology, and high-voltage line field inspection technology in the power field also uses drone aerial photography technology, and agricultural Vegetation spraying pesticide technology in the field also applies UAV technology. UAVs are divided into electric UAVs and fuel UAVs. Fuel UAVs are too expensive to be used in daily life and work. Only electric UAVs are available. The unmanned aerial vehicle using the secondary lithium battery is low in price, light and easy to apply in various fields; however, due to the inherent characteristics of the secondary lithium battery, the charge cannot be charged too high, and the discharge cannot be discharged too low, which requires a certain amount of lithium battery management system

In the daily use process, when the battery is docked with the drone, there will be a phenomenon of sparking at the moment of power connection. Although this sparking phenomenon is not fatal, it is serious for the life and quality of the product. During the sparking process, the arc will Oxidation of connectors will lead to a series of problems such as poor contact and increased internal resistance, which will have a certain impact on actual users. In order to increase product life and quality, most of the connectors are firmly gold-plated at present. Treatment and pre-charging method, which increases the cost and does not fundamentally solve the problem, but only a solution to the symptoms, not the root cause. The pre-charging method increases the cost, and the reliability and high risk factor of heat generation may cause the battery to burn. accident; for this reason, we propose a UAV battery management discharge anti-sparking method

Images