A prompt monitoring and alarm system for safe vehicle speed

A safe speed, monitoring and alarming technology, applied in the traffic control system of road vehicles, traffic control system, arrangement of variable traffic instructions, etc., can solve problems such as not being able to achieve good results, achieve ultra-low power consumption, realize intelligent The effect of adapting to a wide temperature range

Active Publication Date: 2021-11-23
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Warning measures such as warning lights or radar speed measurement are also set in some places to reduce the speed of the vehicle, but they cannot achieve good results.

Method used

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  • A prompt monitoring and alarm system for safe vehicle speed
  • A prompt monitoring and alarm system for safe vehicle speed
  • A prompt monitoring and alarm system for safe vehicle speed

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] figure 1 It is an overall structural diagram of a safe vehicle speed prompt and alarm system of the present invention, such as figure 1 As shown, MSP430 is used as the main processing platform to convert the photometric signal collected by the illuminance sensor inside and outside the tunnel into a digital signal, and the conversion result of ADC12 is stored in the specified array, and the voltage difference corresponding to the illuminance is calculated, and the difference between the illuminance difference and the safe vehicle speed is used. Relational formula to calculate the safe vehicle speed.

[0047] The formula is as follows:

[0048] speed (safe vehicle speed) = 120-40*sum (voltage difference corresponding to illuminance difference)

[0049] The host computer data transmission and monitoring and alarm functions are realized through wireless transmi...

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PUM

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Abstract

A prompt monitoring and alarm system for safe vehicle speed, including a signal acquisition and conversion circuit for detecting light intensity and illuminance, providing a clock signal clock circuit to realize time calculation and display; a key circuit for manually setting the current safe vehicle speed, and a power circuit for the entire The normal operation of the circuit provides normal voltage; the display circuit displays the safe speed and time; the system main control module collects the information and sends control instructions to the system terminal, and wirelessly transmits the results to the host computer for monitoring; the speed measurement module monitors the real-time speed of the vehicle ;The wireless transmission module uploads the vehicle speed data collected by the speed measurement module to the host computer for monitoring in real time; the alarm module receives the uploaded vehicle speed data and compares them with the speed limit of the relevant road sections stipulated by national laws, and sends information to the system terminal, that is, the controlled device command and generate an alert. The invention has the characteristics of intelligently prompting the safe vehicle speed and making driving safer and more convenient.

Description

technical field [0001] The invention relates to the technical field of safety speed prompt and alarm, in particular to a safety speed prompt monitoring and alarm system. Background technique [0002] With the widespread adoption of long tunnels, tunnel safety issues have become increasingly prominent. Tunnels are road sections with special operating environments in the road system, which have an important impact on driving safety. Tunnel entrances and exits are transitional sections between two different operating environments, and often become tunnel accidents. concentration point. One of the main reasons is that the driver's vision at the tunnel entrance and exit has the problem of light and dark adaptation. During the day, when a car approaches a tunnel entrance where the illumination brightness is much lower than that of the external environment, because the human eye has no time to adapt to the sudden change of light, there will be a feeling like a black cave at the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/052G08G1/09
CPCG08G1/052G08G1/09
Inventor 吕丽萍马宗方罗婵宋琳
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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