Multi-sensor synchronous triggering system and method

By introducing a signal generation unit and a signal switching unit into the autonomous driving system, redundant trigger signals are generated, which solves the stability problem of synchronous triggering of multiple cameras, achieves high-precision synchronization when the main control module is abnormal, and improves the safety and reliability of autonomous driving.

CN117002415BActive Publication Date: 2026-07-17GUANGZHOU WERIDE TECH LTD CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU WERIDE TECH LTD CO
Filing Date
2023-06-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for simultaneous shooting by multiple cameras have poor stability and are prone to data loss due to main controller failure, affecting the safety and reliability of autonomous driving.

Method used

A multi-sensor synchronous triggering system is adopted, including a main control module, a signal generation unit, and a signal switching unit. By generating redundant trigger signals and a main trigger signal, a dual synchronization mechanism is achieved to ensure that the sensors can still operate synchronously even when the main control module malfunctions.

Benefits of technology

It improves the stability and accuracy of multi-sensor synchronous triggering, ensuring high-precision synchronous triggering even when the main control module malfunctions, thereby enhancing the safety and reliability of autonomous driving.

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Abstract

This invention relates to the field of autonomous driving technology and discloses a multi-sensor synchronous triggering system and method. The multi-sensor synchronous triggering system includes at least multiple sensors, a main control module, and a signal generation unit. The main control module is communicatively connected to both the signal generation unit and the multiple sensors. The signal generation unit generates a main trigger signal according to a preset trigger cycle and a preset time, and sends the main trigger signal to the main control module. The main control module performs anomaly monitoring on the main trigger signal, obtains the monitoring results, and generates redundant trigger signals according to the trigger cycle. Based on the monitoring results, it outputs either the main trigger signal or the redundant trigger signal to the multiple sensors to trigger synchronous operation of the multiple sensors. This invention improves the stability of multi-sensor synchronous triggering and achieves high-precision synchronous triggering even when the main control module malfunctions.
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