System and working method of precise data fusion center for vehicle-road collaborative public transport

A technology of data fusion and vehicle-road coordination, applied in the direction of road vehicle traffic control system, traffic control system, traffic flow detection, etc., can solve the problem of unreasonable control center device or method, long waiting time for passengers, and uneven speed control. And other issues

Active Publication Date: 2021-04-16
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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  • System and working method of precise data fusion center for vehicle-road collaborative public transport
  • System and working method of precise data fusion center for vehicle-road collaborative public transport
  • System and working method of precise data fusion center for vehicle-road collaborative public transport

Examples

Experimental program
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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 vehicle-road coordination bus precise data fusion center system of the invention runs in the bus management control center. The functions include: Integrate the positioning information uploaded by the bus with the differential grid data stored in the center to obtain a more accurate real-time bus position, calculate and issue the distance of adjacent vehicles in real time, and use the Beidou NTP time synchronization protocol for all buses. Carry out unified timing to achieve time synchronization, and send the real-time position information of the bus corresponding to the line and the high-precision position of the platform parking area to the bus station. It can also be sent to the bus station, and it can also send information to display in the bus and the display terminal of the bus station according to the needs, such as people's livelihood news, advertising information, etc.

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 Patents(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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