Fatigue driving alarm device and alarm method

[0056] Such as figure 1 , figure 2 As shown, the present invention provides a fatigue driving alarm device, including a left skin resistance double electrode as a left skin resistance collection module, a left skin temperature sensor group as a left skin temperature collection module 2, and a right skin resistance collection module Right skin resistance double electrode 3, right skin temperature sensor group as a right skin temperature acquisition module 4, left skin resistance constant current source 5, left skin temperature constant current source 6, right skin resistance constant current source 7, right skin temperature Constant current source 8, left skin resistance sampling circuit 9, left skin temperature sampling circuit 10, right skin resistance sampling circuit 11, right skin temperature sampling circuit 12, single-chip microcomputer 13, alarm module 14 and power supply 15.

[0057] The left skin resistance double electrode 1 and the right skin resistance double electrode 3

[0065] Such as image 3 As shown, according to the fatigue driving alarm method of the fatigue driving device described in Embodiment 1, the specific steps are as follows:

[0066] (1) The statistics timer of the single-chip microcomputer starts timing.

[0067] (2) Collect the driver’s left hand skin resistance signal, left hand skin temperature signal, right hand skin resistance signal and right hand skin temperature signal.

[0068] The method of collecting the resistance signals on the left and right hands holding the steering wheel is to use the left skin resistance constant current source 5 and the right skin resistance constant current source 7 to direct the two separate pairs installed on the left and right hand holding parts of the steering wheel (the left and right halves of the steering wheel). The left skin resistance double electrode 1 and the right skin resistance double electrode 3 are energized to collect. The electrodes of the left skin resistance double electrode 1 a