Vehicle positioning method, automatic driving control method and related systems

A technology for automatic driving control and vehicle positioning, applied in the field of intelligent transportation, can solve problems such as driving, achieve high accuracy, avoid driving inconvenience or driving accidents, and improve the accuracy of vehicle positioning.

Inactive Publication Date: 2019-04-09
NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above problems, the present application provides a vehicle positioning method, an automatic driving control

Method used

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  • Vehicle positioning method, automatic driving control method and related systems
  • Vehicle positioning method, automatic driving control method and related systems
  • Vehicle positioning method, automatic driving control method and related systems

Examples

Experimental program
Comparison scheme
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no. 1 example

[0063] see figure 1 , which is a flowchart of a vehicle positioning method provided in an embodiment of the present application.

[0064] like figure 1 As shown, the vehicle positioning method provided in this embodiment includes:

[0065] Step 101: Obtain the position information of the wheels of the vehicle by using the laser radar installed in the parking lot.

[0066] There are usually multiple lanes and multiple parking spaces distributed in the parking lot. Lanes may be in various forms, such as straight roads, curves, or up and down ramps. Regardless of whether it is an indoor or outdoor parking lot, there are usually buildings, such as walls, columns, etc., near the driveway and the parking space.

[0067] In this embodiment, a plurality of laser radars may be pre-installed at the bottom of the building on both sides of each lane of the parking lot. As a specific implementation, multiple laser radars can be arranged at the bottom of the building according to the p...

no. 2 example

[0083] see Figure 4 , which is a flow chart of another vehicle positioning method provided by the embodiment of the present application.

[0084] like Figure 4 As shown, the vehicle positioning method provided in this embodiment includes:

[0085] Step 401: Using the laser radar to transmit detection signals to the wheels of the vehicle, and using the laser radar to receive signals reflected back by the wheels.

[0086] In this embodiment, the setting method of the laser radar in the parking lot is the same as that in the foregoing embodiments, and will not be repeated here. For the relevant description about the setting manner of the laser radar, reference may be made to the foregoing embodiments.

[0087] In practical applications, the laser radar converts electrical pulses into optical pulses and emits them. Therefore, the optical signal emitted by the laser radar is the detection signal. When the pulsed laser emitted by the lidar hits the wheel, causing scattering, a...

no. 3 example

[0109] see Figure 6 , which is a flowchart of an automatic driving control method provided in this embodiment.

[0110] Such as Figure 6 As shown, the automatic driving control method provided in this embodiment includes:

[0111] Step 601: Obtain the position of the vehicle.

[0112] It should be noted that, in this embodiment, step 601 is specifically to obtain the position of the vehicle according to the vehicle positioning method provided in the aforementioned first embodiment or the second embodiment. For the implementation process of this step, reference may be made to the foregoing embodiments, and details are not repeated here.

[0113] Step 602: Obtain the planned path of the vehicle in the parking lot.

[0114] This step provides two ways to obtain the planned path, and these two ways are respectively aimed at the situation of controlling the vehicle to automatically park into and automatically park out of the parking lot. The implementation of this step will ...

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Abstract

The application discloses a vehicle positioning method, an automatic driving control method and related systems. Position information of wheels of a vehicle is acquired by utilizing a laser radar arranged in a parking lot; and according to the position information of the wheels, a position of the vehicle is acquired. Detection accuracy of the laser radar is very high and can reach a millimeter level, and accuracy of acquiring the position information of the wheels by adopting the method is very high. For each vehicle, after the position information of a plurality of wheels of the vehicle is acquired, the position of the vehicle can be determined. The method does not depend on a GPS (Global Positioning System) or inertial navigation equipment arranged on the vehicle; the position of the vehicle can be determined by directly utilizing the laser radar arranged in the parking lot; in the vehicle driving process, the vehicle can be continuously tracked; and no matter manual driving or automatic driving can use the vehicle position acquired by the laser radar as the basis of driving or driving control. By adopting the method, vehicle positioning accuracy is improved, and problems of driving inconvenience or driving accident and the like, which are caused by vehicle positioning inaccuracy, can be effectively avoided.

Description

technical field [0001] The present application relates to the technical field of intelligent transportation, in particular to a vehicle positioning method, an automatic driving control method and related systems. Background technique [0002] With the continuous improvement of people's living standards, the number of cars is gradually increasing, and cars have become one of the most convenient means of transportation in people's lives. More and more parking lots hope to control the automatic parking of vehicles through automatic driving technology. Obtaining the real-time high-precision position of the vehicle has always been a key problem in autonomous driving technology. [0003] At present, the combination of Global Positioning System (GPS) and inertial navigation equipment is usually used to locate the vehicle. However, due to the large error in the data output by GPS and inertial navigation equipment, the accuracy of vehicle positioning is low. In addition, in an unde...

Claims

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Application Information

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IPC IPC(8): G01C21/34G01S17/93G05D1/02
CPCG01C21/3415G01S17/931G05D1/0257
Inventor 李万
Owner NEUSOFT REACH AUTOMOBILE TECH (SHENYANG) CO LTD
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