The invention relates to a battery car charging accurate identification method and belongs to the technical field of electricity utilization information acquisition. The method comprises the steps of: pre-collecting a power curve of a battery car charging process, and taking the power curve as a reference power curve; judging whether an electric appliance is started or not according to power step; screening suspected charging battery cars through power curve matching; performing linear regression processing on the power curve according to data; identifying charging state change to confirm a charging battery car; and reading updated charging battery car state data. According to the method, a suspected battery car charging event can be quickly identified according to the power curve characteristics of the battery cars, the identification effectiveness is improved, the charging state changes of constant current, constant voltage and trickle current of the charging of the battery cars are tracked through the least square method gradient change fitting, the charging states of the battery cars are confirmed, and the identification accuracy is improved. The method can be used for indoor battery car charging identification of resident users, and provides accurate data support for government supervision.
本发明涉及一种电瓶车充电精准识别方法,属于用电信息采集领域技术领域,包括步骤:预收集电瓶车充电过程的功率曲线,作为基准功率曲线;根据功率阶跃判断有无电器启动;功率曲线匹配筛选疑似充电电瓶车;根据数据对功率曲线进行线性回归处理;识别充电状态变化确认充电电瓶车;读取更新充电电瓶车状态数据。本发明可以根据电瓶车的功率曲线特征,快速识别出疑似电瓶车充电的事件,提升识别的实效性,通过最小二乘法梯度变化拟合,追踪电瓶车充电的恒流、恒压和涓流的充电状态变化,实现电瓶车充电状态确认,提升识别的精准度,可用于居民用户户内电瓶车充电识别,为政府监管提供准确数据支撑。
battery car charging accurate identification method
一种电瓶车充电精准识别方法
2022-01-04
Patent
Electronic Resource
Chinese
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