A capacitance sensing detection system, a capacitance sensing detection method, and a vehicle

By switching between self-capacitance and mutual capacitance modes in the capacitive sensing detection system, efficient and intelligent detection of animals inside vehicles is achieved, solving the problem of intelligent animal intrusion into vehicles and improving detection accuracy and coverage.

CN122092848APending Publication Date: 2026-05-26BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BYD CO LTD
Filing Date
2025-12-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In the current technology, there is a lack of efficient and intelligent detection methods for animals to invade vehicles, which often requires manual handling by users and can easily cause damage or loss.

Method used

The capacitive sensing detection system employs switchable self-capacitance sensing mode and mutual capacitance sensing mode. By dynamically switching the connection between the transmitting and receiving electrodes, it can detect animals inside the carriage and in the air. Combined with the signal processing module, it calculates the height and type of foreign objects.

Benefits of technology

It improves the efficiency and intelligence of detecting foreign objects inside vehicles, and can simultaneously identify crawling and flying animals, reducing human intervention and improving detection accuracy and full coverage.

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Abstract

This invention discloses a capacitance sensing detection system, comprising a signal processing module and a signal generation module. The signal generation module includes a transmitting electrode and a receiving electrode. The signal processing module and the receiving electrode are selectively connected, enabling the capacitance sensing detection system to have at least a self-capacitance sensing mode and a mutual capacitance sensing mode. When the capacitance sensing detection system is in self-capacitance sensing mode, the transmitting electrode is connected to the signal processing module, and the receiving electrode is disconnected from the signal processing module. When the capacitance sensing detection system is in mutual capacitance sensing mode, both the transmitting electrode and the receiving electrode are connected to the signal processing module. This invention utilizes the switchable self-capacitance sensing mode and mutual capacitance sensing mode to detect not only animals crawling inside a vehicle but also animals flying in the air, greatly improving the efficiency of manual inspection and enhancing the intelligence of foreign object identification inside vehicles.
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