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A site location correction method based on video recognition and a vehicle-mounted terminal

A vehicle-mounted terminal and video recognition technology, which is applied in traffic control systems, instruments, and traffic control systems of road vehicles, can solve problems such as site positioning errors, large energy and labor costs, and inaccurate latitude and longitude of sites, so as to reduce workload , Overcoming positioning errors and improving customer satisfaction

Active Publication Date: 2021-03-19
XIAMEN LENZ COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When collecting the latitude and longitude of the station, due to the influence of factors such as the installation location of the collector, the collection method of the operator, and the GPS signal, the longitude and latitude of the collected station are very likely to be inaccurate, resulting in station positioning errors. bad experience
When encountering this problem, line maintenance personnel usually need to re-acquire these stations with inaccurate positioning, and manually update the re-acquired latitude and longitude to the vehicle terminal through local or remote methods, which takes a lot of energy and labor costs

Method used

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  • A site location correction method based on video recognition and a vehicle-mounted terminal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A site location correction method based on video recognition, please refer to figure 1 , whose steps include:

[0025] S10 pre-stores the latitude and longitude position information of the site: the information storage module of each site name and the corresponding latitude and longitude position information of the bus route are pre-entered into the vehicle-mounted terminal;

[0026] S20 collects the current position information: the satellite positioning module of the vehicle-mounted terminal collects the current position information of the bus in real time;

[0027] S30 collects the image outside the car: the video acquisition module of the vehicle-mounted terminal collects the image outside the vehicle in real time, and transmits the image to the image processor of the vehicle-mounted terminal; the image processor processes and analyzes whether the image includes a bus stop or The station information of the bus stop sign;

[0028] S40 judges whether the door is ope...

Embodiment 2

[0033] The video acquisition module is provided with an acceleration sensor. When the vehicle speed is zero, the video acquisition module collects images outside the vehicle to prolong the life of the camera of the video acquisition module.

[0034] Embodiment two:

[0035] The difference from Embodiment 1 is that in this embodiment, the sequence of S30 and S40 is reversed, and when the switch detection module of the vehicle terminal detects that the door of the bus is opened, the video acquisition module collects images outside the vehicle to extend the video acquisition The lifetime of the module's camera. And the station information includes a station name, and the station where the vehicle is located is further confirmed through the station name.

[0036] Finally, the vehicle-mounted terminal uploads the current location information and the name of the current site to the server through the wireless network, and the user obtains the current location information and the na...

Embodiment 3

[0038] Corresponding to the above-mentioned method for correcting site position based on video recognition, a vehicle-mounted terminal includes an information storage module, a satellite positioning module, a video acquisition module, an image processor, and a switching value detection module; the information storage module pre-stores bus Each station name of route and corresponding longitude and latitude position information; The current position information of described satellite positioning module collects vehicle in real time; Described video acquisition module collects the image outside the vehicle; Described image processor processes described image; The detection module detects whether the car door is opened. Specifically, the switch value detection module has a high and low level detection circuit, and the high and low level detection circuit judges the switch of the state of the car door in real time by accessing the vehicle door level signal.

[0039] From the above d...

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Abstract

The invention provides a video recognition-based station position correction method and a vehicle terminal. The method comprises steps of entering names of stations in a bus route and corresponding longitude and latitude position information in an information storage module of the vehicle terminal in advance; collecting current position information of a bus in real time by a satellite positioning module of the vehicle terminal; collecting images outside the vehicle in real time by a video collection module of the vehicle terminal, and sending the images to an image processor of the vehicle terminal; processing and analyzing whether the images contain station information of a bus station or a bus stop by the image processor; detecting whether a bus door opens by an opening and closing detection module of the vehicle terminal; if the images contain the station information and the vehicle door opens, confirming that the vehicle arrives at a bus stop, and comparing current position information with prestored longitude and latitude position information of each stop; and finding out a stop closest to the current position, and modifying longitude and latitude information of the stop to current position information and storing, so as to correct the position automatically.

Description

technical field [0001] The invention relates to a video recognition-based site position correction method and a vehicle-mounted terminal. Background technique [0002] Traditional bus station positioning and station reporting mainly store the station name, longitude and latitude and other information in the vehicle positioning terminal in advance. The GPS positioning module of the vehicle terminal obtains the longitude and latitude from the satellite in real time and compares it with the stored station longitude and latitude Thereby, it is judged whether the vehicle has arrived at the preset bus stop position at present. When collecting the latitude and longitude of the station, due to the influence of factors such as the installation location of the collector, the collection method of the operator, and the GPS signal, the longitude and latitude of the collected station are very likely to be inaccurate, resulting in station positioning errors. Bad experience. When encounte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/133
CPCG08G1/133
Inventor 林佩坤朱宏王宇林远明
Owner XIAMEN LENZ COMM