Battery pack monitoring device and monitoring method thereof

Abstract

The invention discloses a battery pack monitoring device, which comprises a master control module and a plurality of monitoring modules, wherein each monitoring module monitors work information of a battery pack, sends out an alarm signal and uploads the alarm signal to the master control module; the master control module obtains the uploaded work information of the battery pack and gives an alarm; the master control module and the monitoring modules are in series communication through a communication line in sequence; an idle communication interface of the last monitoring module is shorted and the monitoring module directly uploads the alarm signal to the master control module; and a ground wire of the later stage of monitoring module is connected with a positive electrode of the battery pack monitored by the previous stage of monitoring module. The invention further discloses a monitoring method of the battery pack monitoring device. The monitoring method comprises the steps as follows: the master control module and the monitoring modules make a communication protocol; the master control module monitors the alarm signal uploaded by the monitoring modules and timely gives an alarm; the master control module issues a data uploading instruction to the monitoring modules; and the monitoring modules gradually upload the monitored data to the master control module from the later stage to the front stage. The battery pack monitoring device is few in connection lines, convenient to expand and extremely high in fault signal transmission velocity.

Description

technical field [0001] The invention specifically relates to a battery pack monitoring device and a monitoring method thereof. Background technique [0002] With the development of national economy and technology and the improvement of people's living standards, batteries have also played a huge role in people's production and life, bringing endless convenience to people's production and life. [0003] Currently, widely used batteries include lithium batteries, lead-acid batteries, and the like. This type of battery has become the mainstream battery product on the market due to its reasonable cost, relatively long charge and discharge time, and relatively stable performance. However, the working environment requirements of this type of battery are relatively strict, and it is generally required not to be overcharged, overdischarged, or overheated. Therefore, in order to ensure the performance and safety of lithium batteries, lead-acid batteries, etc., battery monitoring de...

AI Technical Summary

Problems solved by technology

[0010] In the ring network, the control signal voltage difference between two adjacent monitoring modules has been reduced to 2*V, but both the first monitoring module and the last monitoring module need to be connected to the main control module. The voltage difference of the control signal will reach N*V, making the voltage difference of the main control module very large

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