针对传统铅酸蓄电池SOC(state of charge)预测方法在线测量精度不高的问题,提出基于电化学反应原理的预测方法。该方法首先对电池进行放电,利用放电电流、电压和硫酸浓度的关系得到电池的硫酸浓度,再根据硫酸浓度与电解液密度的关系得...
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针对传统铅酸蓄电池SOC(state of charge)预测方法在线测量精度不高的问题,提出基于电化学反应原理的预测方法。该方法首先对电池进行放电,利用放电电流、电压和硫酸浓度的关系得到电池的硫酸浓度,再根据硫酸浓度与电解液密度的关系得到电解液密度,最后利用电解液密度与SOC的对应的关系得到电池的SOC。研究结果表明,该方法具有操作方便,实时监测准确度高的优点。
In order to solve the onboard recorder search problem, a new beacon system based on radio direction finding tech- nique, which indicates the orientation of the recorder, is designed. The system consists of phase-locke...
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In order to solve the onboard recorder search problem, a new beacon system based on radio direction finding tech- nique, which indicates the orientation of the recorder, is designed. The system consists of phase-locked loop （PLL）, micro- processor, global position system （GPS） module, power module and so on. The scene simulation verifies the feasibility and reliability of the system. This beacon system can be applied to the recorder search in many fields, and can effectively reduce the search scope and improve work efficiency.
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