一种基于汽车智能座椅的驾驶员疲劳预警系统及方法

By calculating the variance of physiological data at the sensing nodes of the car's smart seat and broadcasting tokens to control data transmission, the problem of artifact interference in the driver fatigue warning system is solved, achieving low-power, high-reliability fatigue warning processing.

CN122245024BActive Publication Date: 2026-07-17CHONGQING JUNZHUO MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING JUNZHUO MACHINERY
Filing Date
2026-05-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing driver fatigue warning systems are susceptible to motion artifacts introduced by body posture disturbances during data transmission, leading to false alarms or missed alarms. Furthermore, invalid data transmission increases power consumption and communication latency, and the lack of steady-state synchronization verification logic affects the accuracy of the assessment.

Method used

By calculating the variance of physiological data in real time at the first sensing node of the car's smart seat, broadcasting the silent token and steady-state synchronization token, controlling the second sensing node to discard invalid data and restart collection in steady state, a unified time reference is established, and physiological feature data is extracted and compressed.

Benefits of technology

It effectively suppressed invalid data transmission, reduced system power consumption, improved the accuracy and real-time performance of fatigue assessment, and reduced wireless communication load.

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Abstract

本发明涉及汽车智能座椅与驾驶员状态监测技术领域,具体为一种基于汽车智能座椅的驾驶员疲劳预警系统及方法,包括第一传感节点、第二传感节点和报警控制单元;第一传感节点实时计算第一模态生理数据的方差,方差大于预设运动阈值时广播信道静默令牌,第二传感节点丢弃当前采集的第二模态生理数据并停止无线传输;方差小于预设稳态阈值时广播稳态同步令牌,第二传感节点以稳态同步令牌到达的时间戳为时间基准重启采集,提取生理特征并传输至报警控制单元,以生成驾驶员疲劳预警信号;方差处于两阈值之间时继续按当前配置运行;本发明可抑制无效传输,提高疲劳预警可信度。
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