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Road section average travelling time calculation method based on electronic license plate

A technology of travel time and electronic license plate, applied in the field of intelligent transportation, can solve the problems of low accuracy and high construction cost, and achieve the effect of high accuracy, low equipment cost and low cost

Inactive Publication Date: 2014-12-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that there are certain limitations in calculating the average travel time of the road section by using the floating car technology at present, resulting in low accuracy; Insufficient, provide a new calculation method for the average travel time of road segments

Method used

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  • Road section average travelling time calculation method based on electronic license plate
  • Road section average travelling time calculation method based on electronic license plate
  • Road section average travelling time calculation method based on electronic license plate

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Embodiment Construction

[0035] The electronic license plate adopted in the present invention is based on the RFID2.4G active electronic license plate, which can also be called an electronic tag, and communicates with a reader-writer through a tag antenna. The electronic tag adopts advanced CMOS 0.18um low-power integrated circuit, which conforms to the design of small size and low power performance. The working current is about 12-18uA and the voltage is 3V. Its ultra-low power design enables the smart electronic license plate to have a battery life of more than 4 years without affecting the transmission distance.

[0036] In order to ensure that the electronic license plate can be effectively read, the electronic license plate of the present invention is usually installed next to the driving instrument panel or on the windshield. For each vehicle, the electronic license plate can store valid data such as the vehicle's license plate number, user information, place of purchase, purchase time, engine n...

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Abstract

The invention discloses a road section average travelling time calculation method based on an electronic license plate. The method includes that an electronic license plate is installed on each vehicle, and an electronic license plate card reading device is installed at the position of an entrance / exit of a road. When vehicles pass through the card reading device, the card reading device reads the electronic license plate of each vehicle and transmits the read electronic license plate, the reading time, the reading position and other information to a center server, and the center server removes vehicle samples with the travelling time obviously difference from the average travelling time according to the read information of the vehicles, and comprehensively calculates the average traveling time of the road section in multiple directions. Compared with travelling time calculation based on an electronic license plate method, the method has the obvious advantages of low cost and high accuracy. Reading of the electronic license plates is not affected by weather and illumination, the problem of low detection accuracy caused by factors such as the weather and the illumination when a video mode is adopted to conduct license plate recognition is solved, and shortest travelling time calculation can be conducted accurately.

Description

1. Technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method for calculating the average travel time of road sections based on electronic license plates. 2. Background technology [0002] With the increase of cars, urban traffic congestion is becoming more and more serious. However, the distribution of traffic flow on urban roads is unbalanced, and some roads are often very congested, while other road traffic is still very smooth. When choosing a travel route, traffic travelers cannot know the congestion situation of that road, so they can only choose the travel route based on experience or choose the shortest route through navigation. If they can know the congestion situation of the road and the average travel time of the road section, they can implement Shortest time route navigation. [0003] There are currently two main methods for calculating the average travel time of road sections, one is the floating car calcu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G06K7/00G01C21/26
Inventor 邱敦国王茂宁
Owner SICHUAN UNIV
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