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Vehicle-road cooperative bus accurate data fusion center system and working method

A vehicle-road coordination and data fusion technology, applied in the traffic control system, traffic control system, traffic flow detection and other directions of road vehicles, which can solve the problem of long waiting time for passengers, poor interaction ability, and difficulty for passengers to check vehicle location information And other issues

Active Publication Date: 2018-08-07
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the increase of urban population, people are paying more and more attention to travel issues. Due to the aggravation of road congestion, the government advocates that people choose public transportation for commuting. Bus / BRT has become the preferred way for people. The current interaction between buses Poor, there are often situations where passengers wait too long due to uneven speed control. At the platform, due to the unreasonable device or method of the control center, it is difficult for passengers to check the vehicle location information in real time and estimate the arrival time of the vehicle. Reasonable arrangements for travel time, causing a lot of inconvenience

Method used

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  • Vehicle-road cooperative bus accurate data fusion center system and working method
  • Vehicle-road cooperative bus accurate data fusion center system and working method
  • Vehicle-road cooperative bus accurate data fusion center system and working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Vehicle-road collaborative bus precision data fusion center system, including network switches and communication gateway clusters;

[0047] The system also includes a submeter / lane-level ground-based augmentation unit, a data grid differential calculation unit, a Beidou GNSS high-precision receiving base station, and a SQL Sever storage database server. The SQL Sever storage database server includes the data grid differential calculation unit. The unit calculates the data information and sends it to the following workstations: vehicle data service workstation, front and rear vehicle distance calculation workstation, bus line calculation workstation and information release workstation.

[0048] The network switch is connected to the SQL Sever storage database server. Distributed computing through Hadoop massive data processing structure. In the present invention, the workflow concept of Hadoop massive data processing structure is as image 3 shown.

[0049] The commun...

Embodiment 2

[0051] A working method utilizing the system described in embodiment 1 to calculate and process, comprising: calculating the front and rear vehicle distances, the steps are as follows:

[0052] 1) Receive the data uploaded by the bus: including bus position information and vehicle number information; said step 1) receive the data uploaded by the bus: the SQL Sever stores the position information and the vehicle uploaded by the bus through the 3G / 4G signal The number information is received, stored and forwarded to the network switch, and the network switch realizes the work and communication of each unit through the communication gateway cluster;

[0053] 2) Carry out data grid difference calculation: place the Beidou receiver on the base station for observation, and calculate the distance correction number from the base station to the satellite according to the known precise coordinates of the base station;

[0054] 3) Data processing by the vehicle data service workstation: ...

Embodiment 3

[0066] A kind of working method that utilizes the system described in embodiment 2 to calculate and process, also includes: 5) calculate bus line, step is as follows: bus line calculation workstation is apart from the line distance S of each bus stop according to the real-time position of bus and the average The speed V is estimated to arrive at each bus stop T, T=S / V.

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Abstract

The invention discloses a vehicle-road cooperative bus accurate data fusion center system which is operated in a bus management control center. The functions of the system comprises fusing the positioning information uploaded by a bus and the differential grid data stored in the center to obtain a more accurate real-time position of the bus, calculating and issuing the distances to the adjacent vehicles on real time, uniformly timing all buses through the Beidou NTP time synchronization protocol to realize time synchronization, and sending the real-time bus position information of the corresponding route and high-precision position of a station parking area to a bus stop platform. The issued information, such as folk news and advertisement information, can be displayed on display terminalsof the bus and the bus stop as needed.

Description

technical field [0001] The invention relates to a precise data fusion center system and working method of a vehicle-road collaborative public transport, and belongs to the technical fields of high-precision positioning, intelligent transportation and distributed systems. Background technique [0002] With the increase of urban population, people are paying more and more attention to travel issues. Due to the aggravation of road congestion, the government advocates that people choose public transportation for commuting. Bus / BRT has become the preferred way for people. The current interaction between buses Poor, there are often situations where passengers wait too long due to uneven speed control. At the platform, due to the unreasonable device or method of the control center, it is difficult for passengers to check the vehicle location information in real time and estimate the arrival time of the vehicle. Reasonable arrangements for travel time, resulting in a lot of inconven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/127G08G1/133G08G1/01
CPCG08G1/0112G08G1/0125G08G1/127G08G1/133
Inventor 邢建平李东辕田欣玉
Owner SHANDONG UNIV
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