Battery Pack Temperature Monitoring via Wireless Alarm
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Solution Overview
Problem
Battery packs stored in a stacked configuration without communication interfaces are prone to overheating during storage and transportation, making it difficult for warehouse managers or delivery personnel to detect thermal issues until they escalate to serious fires or explosions.
Innovation Solution
A battery monitoring system utilizing short-distance wireless communication to monitor temperature and transmit alarm signals from overheated battery packs, allowing for immediate notification and potential intervention to prevent thermal runaway or fires, with features like sleep mode operation to conserve power and multi-hop transmission for extended monitoring range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If battery packs are stored in a stacked configuration without communication interfaces, then storage density and ease of handling are improved, but temperature monitoring capability deteriorates
Solution Approach 1:
The monitoring system is segmented into distributed components: each battery pack contains an independent temperature sensor and controller that can autonomously detect and communicate temperature data. This segmentation allows monitoring of individual packs while maintaining stacked storage configuration.
Solution Approach 2:
A wireless communication module serves as an intermediary between the battery packs and the monitoring system. This intermediary enables temperature data transmission without physical communication interfaces, preserving the stacked storage arrangement while achieving monitoring capability.
2Reliability
If continuous temperature monitoring is implemented in storage, then safety is improved, but power consumption increases
Solution Approach 1:
The system employs periodic temperature monitoring instead of continuous monitoring. The controller activates the temperature sensor at regular intervals to check battery temperature, reducing power consumption while maintaining safety through periodic detection of thermal conditions.
Solution Approach 2:
Each battery pack's controller autonomously manages its own temperature monitoring schedule and wireless communication activation. The system self-regulates power consumption by activating monitoring only when necessary, such as when temperature thresholds are approached or at predetermined intervals.
3Loss of time
If alarm signals are transmitted immediately when overheating is detected, then response time is improved, but communication reliability under thermal stress worsens
Solution Approach 1:
The system establishes wireless communication channels and monitoring protocols before thermal runaway occurs. Temperature thresholds are pre-configured, and communication protocols are set up in advance to ensure reliable data transmission even as thermal conditions deteriorate.
Solution Approach 2:
The system implements feedback mechanisms where temperature data is continuously monitored and compared against thresholds. When thresholds are exceeded, the controller activates alarm signal transmission. The feedback loop ensures that communication is triggered only when necessary, and the system can adjust monitoring frequency based on thermal conditions.
Data Source
AI summary
The invention provides a battery monitoring system comprising a battery monitoring device and at least one battery pack in storage. The battery pack comprises at least one battery core, a controller, and a temperature sensor. When the controller of the battery pack senses that a temperature of the battery core is higher than a safe temperature value, it issues an alarm signal, and directly transmits the alarm signal to the battery monitoring device in a short distance wireless communication, or transmits the alarm signal to the battery monitoring device via a multi-hop transmission of multiple battery packs in the short distance wireless communication. The alarm signal received by the battery monitoring device will be displayed on an alarm notification unit. Accordingly, the battery monitoring system can instantly monitor the temperature of the battery pack in storage to reduce the probability of burning or exploding of the battery pack.