品牌 | 多商 |
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型号 | 蓄电池监测系统 |
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产品介绍 |
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一. 方案概述 在通信、电力、微波等系统中,蓄电池组是重要的储能设备,它可保证通信设备及动力设备的不间断供电。但如果不能妥善地管理使用蓄电池组,例如过充电、过放电及电池老化等现象都会导致电池损坏或电池容量急剧下降(即使只有一节电池性能恶化,也会严重影响整组电池的性能),从而影响设备的正常供电。因此,及时可靠的对电池组进行巡回检测对于维护通信系统设备的正常运转具有十分重要的意义。 如何对蓄电池组进行监测呢? (1) 单体电池电压测量 电池组单体电池电压是**的电池特征,该设备可以通过对电池类型(2V、6V、12V)的设置,然后使用相应的采集板**能对相对应的电池进行实时的监控。 (2) 电池温度测量 监测电池表面温度亦可对电性能进行较准确的评估,损坏的电池由于其内阻增大,在充放电过程中其功耗亦会大于其它正常电池,故其表面温度会高于其它电池。当其表面温度与其它电池相比超限(例如超过5摄氏度)时,则可认为此节电池已损坏,EAC-BAT会发出告警声,提醒应立即更换新电池。 二.产品特点 l EAC-BAT监测仪具有完善的保护措施,电源进线具有极性保护,信号输入端进线电压不超过150V时可**不损坏,使用该监测仪不会影响任何设备的共地系统。 lEAC-BAT监测仪具有零点和满度自校准电路及算法,可长期测量而保持很高的稳定度。 l为确保监测仪稳定可靠的长期运行,电路中特别采用了WATCH DOG技术, 当监测仪受到外部干扰或其他原因导致死机时,WATCH DOG可使EAC-BAT自行复位而恢复正常工作。 l EAC-BAT监测仪接线简单,接线端出线装有保护电阻,可避免因短路引起的事故。 l信号输入、电源输入、通信口、机壳之间完全电气隔离,可承受1000Vrms耐压1min,因而具有很高的安全性。 l采用良好的人机界面接口,用户可以非常方便的通过按键的输入来获取来每一节电节的信息和系统信息、并且还可以通过键盘来对系统现有的参数进行修改,以达到用户所要达到的功能。 l电池参数采用485总线的方式,在以后的系统扩容当中**显得非常的方便了,用户不必再购买监控主机,只需另购几块相应的采集板**可以达到扩容的要求了。 三、系统连接示意图
四、系统电气连接示意图:
以上是该系统的接线的原理图,由于本系统采用了工作电源,和采集电源相隔离的技术,所示在采集板上的电源采用了两组不同的电源,1、采集小板的工作电源(从12V电池上取电)2、485通讯电源(由主机提供),在上图表现出来为“+12V,AGND”。 |