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Vehicle dead reckoning service evaluation method and device, simulation equipment and medium

A simulation equipment and dead reckoning technology, applied in navigation calculation tools, road network navigators, etc., can solve the problems of not fully representing the user positioning effect, poor evaluation timeliness, low data samples, etc., and achieve the effect of real and reliable evaluation results.

Pending Publication Date: 2021-03-09
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the existing evaluation methods for vehicle dead reckoning services have the following defects: the above-mentioned scheme 1) the probability of obtaining data samples missing long-term GPS signals is very low, and there are very few evaluation samples. The results fluctuate greatly; the timeliness of the other evaluation is poor
The above scheme 2) There are differences between the evaluation effect of the server and the evaluation effect of the client, which cannot fully represent the positioning effect perceived by the user

Method used

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  • Vehicle dead reckoning service evaluation method and device, simulation equipment and medium
  • Vehicle dead reckoning service evaluation method and device, simulation equipment and medium
  • Vehicle dead reckoning service evaluation method and device, simulation equipment and medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 It is a schematic flow chart of the first evaluation method of the vehicle dead reckoning service provided by the embodiment of the present application. The method can be executed by the evaluation device or simulation equipment of the vehicle dead reckoning service. The device or simulation equipment can be implemented by software and / or Realized by means of hardware, the device or simulation device can be integrated in any intelligent device with network communication function. Such as figure 1 As shown, the evaluation method of vehicle dead reckoning service may include the following steps:

[0031] S101. Extract the sensor data in the current betting period from the pre-built sensor files corresponding to each sensor; wherein the sensor data at least includes: position point coordinates, time point and sensor type.

[0032] In this step, the simulation device can extract the sensor data in the current injection period from the pre-built sensor files corre...

Embodiment 2

[0041] figure 2 It is a second schematic flowchart of the evaluation method for vehicle dead reckoning service provided by the embodiment of the present application. Further optimization and expansion based on the above technical solution, and may be combined with each of the above optional implementation modes. Such as figure 2 As shown, the evaluation method of vehicle dead reckoning service may include the following steps:

[0042] S201. Extract sensor data in the current betting period from the pre-built sensor files corresponding to each sensor; wherein, the sensor data at least includes: position point coordinates, time point, and sensor type.

[0043] Preferably, before extracting the sensor data in the current period from the pre-built sensor files corresponding to each sensor, the simulation device can also acquire the navigation track samples of the vehicle according to the preset collection period during the driving of the vehicle; and then The sensor data of e...

Embodiment 3

[0053] Figure 5 It is a structural schematic diagram of the evaluation device for vehicle dead reckoning service provided by the embodiment of the present application. Such as Figure 5 As shown, the device 500 includes: an extraction module 501, a note number module 502 and an evaluation module 503; wherein,

[0054] The extraction module 501 is used to extract the sensor data in the current betting period from the pre-built sensor file corresponding to each sensor; wherein, the sensor data includes at least: position point coordinates, time point and sensor type;

[0055] The betting number module 502 is used to inject the sensor data in the current betting period into the map application program APP through the simulation evaluation tool of the vehicle dead reckoning service, and obtain the current betting number output by the map APP. Periodic simulation positioning results; repeat the above operations until the simulation positioning results of each note number cycle out...

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Abstract

The invention discloses a vehicle track plotting service evaluation method and device, simulation equipment and a medium and relates to the technical field of navigation and positioning. The method comprises steps of extracting sensor data in a current fluence period from a sensor file corresponding to each pre-constructed sensor; injecting the sensor data in the current number injection period into a map application APP through a simulation evaluation tool of the vehicle track plotting service to obtain a simulation positioning result of the current number injection period output by the map APP; repeatedly executing the above operations till a simulation positioning result of each betting period output by the map APP is obtained; and evaluating the vehicle track plotting service in the map APP based on the simulation positioning result of each betting period and a pre-acquired real positioning result of each betting period. According to the method, the real scene of vehicle navigationcan be reproduced more realistically, so the effect that the user truly uses the vehicle track plotting service is obtained, and the evaluation result is more real and reliable.

Description

technical field [0001] The present application relates to the field of artificial intelligence, and further relates to the field of navigation and positioning technology, especially an evaluation method, device, simulation equipment and medium for vehicle dead reckoning services. Background technique [0002] Vehicle Dead-Reckoning (VDR) service is a commonly used navigation and positioning technology. Its basic principle is to use sensors such as direction and speed to calculate the instantaneous position of the vehicle, which can be implemented in the Global Positioning System (GPS) , referred to as GPS) and continuous autonomous positioning in scenarios where the signal is weak and the GPS signal is lost. During the driving and navigation process, when the GPS signal is weak or there is no GPS signal at all, the car logo in the VDR service will be grayed out, and the calculation point is too fast or too slow, causing the user to miss the key voice and image guidance infor...

Claims

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Application Information

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IPC IPC(8): G01C21/28G01C21/30G01C21/20
CPCG01C21/28G01C21/30G01C21/20
Inventor 刘旭王雅琪汤文哲肖哲珊刘凡王芬
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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