Vehicular intelligent speed-limiting device

Abstract

The invention relates to a vehicular intelligent speed-limiting device which comprises a central processing unit (1), a GPS (Global Positioning System) device (2), a display (3) and a vehicular power supply (9); the GPS device (2) transmits position and speed information to the central processing unit (1), an external environment sensor (5) transmits an external environment sensing signal to the central processing unit (1) through an A/D acquisition card (4), the display (3) receives image alarming information from the central processing unit (1) and sends an audible alarm, and the central processing unit (2) acquires road speed-limiting information in a GIS (Global Information System) software system according to the position information acquired from the GPS device (2), corrects the road speed-limiting information by utilizing an output signal of the external environment sensor (5) and compares the speed information acquired from the GPS device (2) with the corrected speed-limiting information so as to judge whether a vehicle is in a overspeed state or not, thereby selecting whether to carry out alarming prompt on a driver or not so as to enable the driver to slow down.

Description

technical field [0001] The invention relates to the field of automobile active safety, and more particularly, relates to a vehicle-mounted intelligent speed limiting device. Background technique [0002] At present, the speed limit thresholds used by traditional vehicle speeding alarm devices are preset and fixed speed values. In use, no matter how the external road environment changes, the same speed value is used to limit, and false alarms are often reported. . In the prior art, the application number is 03226688.X and the Chinese patent literature with the application number 200820062397.7 discloses such an automobile speeding alarm device, which adopts a preset, fixed limit threshold to monitor the speeding behavior of the driver. Although the constraint has a certain positive effect, because its speed threshold is fixed and cannot change with the change of the external road environment, false alarms are often reported, which has a negative impact on the driver and seri...

AI Technical Summary

Problems solved by technology

However, its speed threshold cannot change with the real external environment (including weather conditions, crowd density, traffic density, etc.), and the change of its speed limit threshold is still unitary.

Secondly, its acquisition of vehicle speed uses a vehicle speed sensor, which increases the complexity of the system

And this automobile speed limiting device just reminds and warns the driver's speeding behavior, and cannot stop the driver's intentional speeding behavior

Therefore, the above-mentioned automobile speed limiting devices all have functional limitations, cannot improve the speeding behavior very well, and even cannot achieve a real speed limiting effect.

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