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Beidou accurate space-time bus station real-time information service fusion processing working method and system device

A bus platform and service integration technology, applied in traffic control systems, road vehicle traffic control systems, satellite radio beacon positioning systems, etc., can solve the problem of inability to accurately predict the waiting time of passengers and the inability to accurately display buses Problems such as location information and intelligent transportation systems are not perfect enough to achieve the effect of shortening the information update cycle, improving positioning accuracy, and ensuring accuracy

Inactive Publication Date: 2018-06-29
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nowadays our country still lacks a systematic, scientific, and forward-looking consideration for the public transportation system, and the intelligent transportation system is far from perfect, especially in today's bus stops, such as the inability to accurately display the location information of the bus , it is impossible to accurately predict the waiting time of passengers, the information update cycle is too long and many other problems, which bring great inconvenience to passengers waiting for the bus, and there are often phenomena such as queuing confusion

Method used

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  • Beidou accurate space-time bus station real-time information service fusion processing working method and system device
  • Beidou accurate space-time bus station real-time information service fusion processing working method and system device
  • Beidou accurate space-time bus station real-time information service fusion processing working method and system device

Examples

Experimental program
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Effect test

Embodiment 1

[0076] A Beidou precise space-time bus platform real-time information service fusion processing method, including:

[0077] (1) Real-time collection of precise coordinate information of the bus, precise coordinate information of the parking area A B C of the bus platform, information on the expected arrival time of the bus at the bus platform, and advertisement information through the bus platform information sending and receiving unit;

[0078] (2) Through the Beidou NTP time synchronization processor, the traffic control center, the bus station control center and all buses are uniformly timed to ensure the accuracy of system operation and the reliability of information;

[0079] (3) Match the precise coordinate information of the bus stop parking area A B C with the real-time precise coordinate information of the bus through the micro control unit of the bus stop:

[0080] (4) Display the real-time location of the bus and passengers through the passenger App, as well as the ...

Embodiment 2

[0083] A kind of Beidou precise space-time bus platform real-time information service fusion processing working method as described in embodiment 1, its difference is, in described step (1), the method for the accurate coordinate information of described collection bus is, for Beidou satellite The positioning system and inertial navigation system use the integrated navigation Kalman filter positioning algorithm:

[0084] Kalman filter state equation:

[0085] x k =A k-1 x k-1 +w k-1 (I)

[0086] x in formula (I) k is the state vector of the system; w k-1 is the system process noise; A k-1 for t k-1 time to t k The state transition matrix at each moment.

[0087] Its state vector is:

[0088] [x y z v x v y v z δt u δf u ] T

[0089] It includes three position components (x y z), three velocity components (v x v y v z ) and two variables of the receiver clock (δt u δf u );

[0090] The constant coefficient state matrix is:

[0091]

[0092] A...

Embodiment 3

[0111] As described in Embodiment 2, a Beidou precise space-time bus platform real-time information service fusion processing working method, the difference is that in the step (3), ΔxΔyΔz is set to be the difference between the coordinates of the bus and the coordinates of the parking area, then,

[0112] Example by Figure 4 The process shown is matched.

[0113] In step (4), the estimated time of arrival of the bus at the bus station and the expected waiting time of the passengers after arriving at the bus station, the forecasting method is a time-of-arrival forecasting method that integrates historical and real-time data.

[0114] Preferably according to the present invention, in step (4), the arrival time prediction method of the fusion history and real-time data is a method based on SVM and H ∞ Filtered dynamic fusion prediction estimation method:

[0115] Such as Figure 5 As shown, according to the observation equations of multiple different sensors, a series of s...

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Abstract

The invention discloses a Beidou accurate space-time bus station real-time information service fusion processing working method. Through constant acquisition and transmission of real-time traffic data, prediction is made in combination with historical data and information is timely transferred to traffic participants, so that an intelligent public transportation network is constructed. By the Beidou accurate space-time bus station real-time information service fusion processing working method, more accurate real-time acquisition and display of bus information at a bus station is achieved, thereal-time positioning accuracy of a bus is improved to a submeter level, and the information updating period is prolonged to 2-5 seconds, so that a great convenience is provided for passengers waitingfor the bus; when passengers gather in the bus station, the parking condition and the estimated arrival time of the bus can be acquired more conveniently, so that the order for citizens to use publictransportation is greatly enhanced; therefore, an indispensable link of constructing the intelligent public transportation network is provided, and accurate space-time bus station real-time information service for improving the efficiency of road and vehicle operation is achieved.

Description

technical field [0001] The invention relates to a Beidou precision time-space bus platform real-time information service fusion processing method and system device, belonging to the technical fields of high-precision positioning, intelligent transportation and distributed systems. Background technique [0002] With the continuous expansion of cities in our country, a large number of people gather in cities, the number of motor vehicles increases rapidly, and the contradiction between vehicles and roads becomes more and more serious, which brings serious traffic congestion problems. my country encourages to alleviate traffic congestion by increasing investment in public transportation facilities and promoting green travel. However, nowadays our country still lacks a systematic, scientific, and forward-looking consideration for the public transportation system, and the intelligent transportation system is far from perfect, especially in today's bus stops, such as the inability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/133G08G1/01G01S19/49
CPCG01S19/49G08G1/0129G08G1/133
Inventor 邢建平董沛鑫李程帅
Owner SHANDONG UNIV
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