Distributed pressure monitoring and early warning method and system in battery box

By using a distributed pressure sensor array and a weighted centroid positioning algorithm, the problem of accurately locating abnormal pressure locations inside the battery box was solved, enabling graded early warning and improving fault handling efficiency and safety.

CN121839953APending Publication Date: 2026-04-10ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Patent Information

Application Number
CN202511759412.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing battery box pressure monitoring technology cannot accurately pinpoint the exact location of pressure anomalies, resulting in a lack of targeted early warning information and a situation where people know there is an anomaly but do not know where it is.

Method used

A distributed pressure sensor array combined with a weighted centroid localization algorithm is used to acquire pressure distribution data inside the battery box, perform environmental compensation, dynamically calculate the normal pressure range threshold, identify abnormal pressure locations, and use the weighted centroid localization algorithm to determine the abnormal location and fault type, triggering a graded early warning.

Benefits of technology

It enables precise location of abnormal pressure within the battery box, shortens handling time, avoids secondary damage caused by blind handling, and improves fault handling efficiency.

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Abstract

The invention discloses a distributed pressure monitoring and early warning method and system in a battery box, and the method comprises the steps: obtaining pressure data, collected by a distributed pressure sensor array, of each point in the battery box, and forming pressure distribution data; acquiring temperature and humidity in the battery box, and compensating the pressure distribution data by adopting an environment compensation algorithm; based on the compensated pressure distribution data, dynamically calculating a pressure normal range threshold value by adopting a 3 sigma principle so as to judge whether the pressure is abnormal or not; if the pressure is abnormal, determining an abnormal position by adopting a weighted centroid positioning algorithm, and identifying a fault type of the pressure abnormality; and triggering graded early warning according to the abnormal position and the fault type. According to the invention, the distributed pressure sensor array is combined with the weighted centroid positioning algorithm, so that the accurate positioning of the abnormal pressure position in the battery box is realized, and the problem that the traditional monitoring only knows the abnormal position but does not know the abnormal position is solved.
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