A car safety belt with positioning function

Abstract

The invention discloses an automobile safety belt with a positioning function. The automobile safety belt comprises a ribbon and a spring bolt, wherein the spring bolt is sheathed on the ribbon to slip; a first bar code is arranged on one side surface of the ribbon, and a second bar code is arranged on the side surface of the ribbon; a first scanner used for scanning the first bar code and a second scanner used for scanning the second bar code are arranged on the spring bolt; the densities of the first bar code and the second bar code are gradually increased from one end to the other end, and the density increasing speed of the first bar code is higher than that of the second bar code. The signal variation speeds output by the first scanner and the second scanner have difference, the position of the spring bolt can be accurately judged by comparing and calculating the variation difference of the difference for the signal variation speeds, and whether the safety belt is worn or not can be accurately judged based on the position of the spring bolt.

Description

technical field [0001] The invention relates to an automobile safety belt, in particular to an automobile safety belt with a positioning function. Background technique [0002] At present, automobiles have become an indispensable means of transportation in life. Safety is the most basic need for people to travel, and car driving safety has become the primary concern of drivers and passengers, and it is also one of the most important performances of cars. [0003] The car seat belt can firmly tie the occupant to the seat when the vehicle collides or uses emergency braking to prevent secondary collisions and avoid or reduce the degree of injury to the occupants. However, at present, there are often casualties caused by not wearing seat belts. In order to ensure that drivers or passengers wear seat belts after getting on the bus, the car seat belt system will be equipped with a detection alarm device. Alarm prompt when wearing seat belt. At present, a common detection and al...

AI Technical Summary

Problems solved by technology

However, at present, there are often casualties caused by not wearing seat belts. In order to ensure that drivers or passengers wear seat belts after getting on the bus, the car seat belt system will be equipped with a detection alarm device. Alarm prompt when wearing seat belt

At present, a common detection and alarm device is to set a barcode on the webbing, and to detect whether the length of the webbing is within the preset range by scanning the barcode with a scanner on the deadbolt to determine whether the seat belt is fastened. This barcode setting method can only judge the position of the lock bolt within a certain range, but cannot perform accurate positioning, so the detection effect is difficult to be accurate

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