Multi-Functions DAQ

The multi-function data acquisition system is integrated with the battery charge-discharge test system. Featuring high precision, high sampling rates, flexible configuration, and hardware redundancy protection, it enables real-time acquisition, recording, and monitoring of battery voltage and temperature, thereby enhancing test safety.

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详细介绍

The Multi-Functions DAQ is a high-precision data acquisition system designed for integration with battery charge-discharge testing systems. It enables synchronized monitoring of key battery parameters, including voltage and temperature, during testing and evaluation.

The system supports high-accuracy voltage acquisition with a configurable input range, as well as NTC and thermocouple temperature measurement for different battery testing requirements. With a voltage acquisition rate of up to 10 ms, it can capture rapid changes in battery operating conditions and provide detailed test data for performance analysis and safety monitoring.

系统功能

High Accuracy Voltage and Temperature Data Acquisition

10ms High Acquisition Rate

Flexibly configure the number of acquisition channels

Dual-protection of Hardware and Software

关键系统参数

Battery Voltage DAQ
Voltage Acquistion Range	-5V to +5V (available to customized from -10V to +10v)
Voltage Acquistion Accuracy	s±0.02%F.S at 25°C±5°℃
Resolution	0.1mV
Acquistion Rate	10ms

Thermocouple Temperature DAQ
K/T Thermocouple Acquisition Range	from -60°℃ to 200°℃ (available to customized 1000°C)
K/T Thermocouple Acquisition Accuracy	±1℃
Resolution	0.1℃
Acquistion Rate	500ms

NTC Temperature DAQ
NTC Temperature Range	-40℃ to 125℃
NTC Acquisition Accuracy	±1℃ (available to customized ±0.5℃
Resolution	0.1℃
Acquisition Rate	500ms

Nos of DAQ Channel
Voltage Channel	64CH (available to customized)
Temperature Channel	32CH (available to customized)

常见问题

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电池过压

电池电压超过电压上限，确认时间 0.2 秒

使用万用表测量实际电池电压，并与 BTS 显示的电压进行比较，检查采样值是否一致。.
如果采样值和实际值不相等，则通过调换相邻通道的采样线来确认问题出在直流板还是线路上。如果布线有问题，请检查电压采样线的连接是否不正确、松动或不良。.
如果采样值和实际值相等，则检查上位机步进设置是否合理，并确定电池过压是在步进运行时发生还是在步进过程中的某个特定点发生。.
检查相应的电池是否有明显的肿胀、损坏或其他异常。如果有问题，请采取必要的安全措施。.
如果电池和电压采样线正常，则确认直流板故障并更换。.

电池欠压

电池电压低于电压下限，确认时间 0.2 秒

使用万用表测量实际电池电压，并与 BTS 显示的电压进行比较，检查采样值是否一致。.
如果采样值和实际值不相等，则通过调换相邻通道的采样线来确认问题出在直流板还是线路上。如果布线有问题，请检查电压采样线的连接是否不正确、松动或不良。.
如果采样值和实际值相等，则检查上位机步进设置是否合理，并确定电池欠压是在步进运行时发生还是在步进过程中的某个特定点发生。.
检查相应的电池是否有明显的肿胀、损坏或其他异常。如果有问题，请采取必要的安全措施。.
如果电池和电压采样线正常，则确认直流板故障并更换。.

通信故障

模块 6S 未收到上位机数据，切换至故障状态。当模块从上位机接收到数据时，故障自动清除。.

检查模块和中间计算机是否处于正常通电状态。.
检查模块与中间计算机之间的 CAN 连接是否正常。.
检查 CANA 拨码开关是否设置正确。.
测量 CANA 总线上 CAN H 和 CAN L 之间的匹配电阻。应为 60±5 欧姆。如果不是，则调整信号适配器板上的匹配电阻。如果总线电压正常，则检查 BTS 故障记录，以确定是哪个子通道触发了故障。使用调试软件工具检查该通道显示的总线电压是否正常。如果不正常，则可确定 DC 板的总线采样出现故障，应更换该板。.
如果上述各点都正常，则连接 CAN 盒，利用捕获的信息确定问题出在中控电脑还是下控电脑。.