Automotive safety belt based on heartbeat and respiratory rate measurement and warning method thereof

Abstract

The invention relates to an automotive safety belt based on heartbeat and respiratory rate measurement. According to the automotive safety belt based on heartbeat and respiratory rate measurement, a heartbeat rate measuring module and a respiratory rate measuring module are fixed onto a safety shoulder belt and a safety belly belt; a signal processing device comprises a charge amplifying circuit, a low-pass filtering circuit, an A / D (analog / digital) conversion circuit, a signal collecting interface circuit, a data operation circuit, a data storage and double-safety redundancy algorithm module which are sequentially connected; the heartbeat rate measuring module and the respiratory rate measuring module are connected with the charge amplifying circuit through signal wires; the data storage and double-safety redundancy algorithm module is connected with an in-car alarming device through an in-car alarming control module. The automotive safety belt based on heartbeat and respiratory rate measurement can determine whether a diver is in a fatigue driving sate or in abnormal health according to the heartbeat rate and the respiratory rate of the driver, and issue warning sound of a corresponding level when abnormality is determined, thereby being capable of avoiding traffic accidents to the maximum degree.

Description

technical field [0001] The invention belongs to the technical field of automobile safety driving, and relates to an early warning vehicle safety belt and an early warning method based on measuring heartbeat frequency and breathing frequency. Background technique [0002] Fatigue driving is one of the biggest road killers at present, and 1 / 3 of serious traffic accidents are caused by driver fatigue driving. Fatigue driving refers to the poor or insufficient sleep quality of the driver, or after long-term continuous driving, the imbalance of physiological and psychological functions occurs, and the phenomenon of objectively declining driving skills occurs. Fatigue driving can affect many aspects such as driver's attention, sensation, perception, thinking, judgment, will, decision and movement. After the driver is tired, he will feel drowsy, sleepy, weak in limbs, inattentive, poor in judgment, even in a trance or instant memory loss, delayed or premature action, pause in oper...

AI Technical Summary

Problems solved by technology

However, this method only monitors the driver's respiratory rate signal, and the collected signal is single. At the same time, the car needs to increase the auxiliary brake accordingly, so the structure is complicated and the weight increases.

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