CN219676574U - AR-HUD POI function test system based on GNSS signal simulation - Google Patents
AR-HUD POI function test system based on GNSS signal simulation Download PDFInfo
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- CN219676574U CN219676574U CN202321281494.6U CN202321281494U CN219676574U CN 219676574 U CN219676574 U CN 219676574U CN 202321281494 U CN202321281494 U CN 202321281494U CN 219676574 U CN219676574 U CN 219676574U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the field of test systems, in particular to an AR-HUD POI function test system based on GNSS signal simulation, which comprises an upper computer, a GNSS signal acquisition module, a GNSS signal playback module, a road scene simulation module, a bus communication module and a sample car to be tested; the upper computer signal is connected with the GNSS signal acquisition module and receives GNSS road data; the upper computer signal is connected with the GNSS signal playback module, and transmits GNSS simulation data to convert the simulated satellite signals, and the GNSS signal playback module transmits the simulated satellite signals to the sample car to be tested; the upper computer is in signal connection with the road scene simulation module and sends scene data to send the simulated road scene to the sample vehicle to be tested; the upper computer is connected with the sample car to be tested through the bus communication module signal and carries out bidirectional bus data interaction with the sample car to be tested. The utility model avoids frequent outfield test and road test, improves the test efficiency and reduces the test cost.
Description
Technical Field
The utility model relates to the field of test systems, in particular to an AR-HUD POI function test system based on GNSS signal simulation.
Background
The AR-HUD is an augmented reality head-up display system, and can project various information and images onto a windshield in front of a driver, so that the driver can acquire contents such as navigation, safety prompt and the like without looking down at a dashboard or a mobile phone screen. Because the vehicle has a longer imaging distance, the long-range view and detail information are clearly displayed, the larger view angle of the vehicle is realized, and when the vehicle is applied to the vehicle, the AR-HUD can enable the display content to cover multi-lane information, so that the road surface information is realistic, and the vehicle can be combined with the current position of the vehicle, a vehicle-mounted map, a scene AI and the like to provide information of tourist attractions, markets, restaurants, service stations and the like for a driver, so that the interconnection between the vehicle and the road environment is realized.
POI (Point of Information) is the delivery correlation of the AR-HUD system, and the delivery correlation is related to GNSS (Global Navigation Satellite System) positioning accuracy due to the complex actual road environment, but the scene coverage is insufficient in the development process, so as to affect the delivery service quality, and the existing test methods are all based on actual road tests, require road scenes and outfield resources, cannot timely and effectively reproduce target scenes, and have complex and changeable external roads, so that the consistency of test results cannot be ensured.
Disclosure of Invention
The utility model aims to provide an AR-HUD POI function test system based on GNSS signal simulation, so as to solve the problem that the consistency of test results of the existing test system cannot be ensured.
The AR-HUD POI function test system based on GNSS signal simulation in the scheme comprises an upper computer, a GNSS signal acquisition module, a GNSS signal playback module, a road scene simulation module, a bus communication module and a sample car to be tested;
the upper computer is in signal connection with the GNSS signal acquisition module and receives GNSS road data of the GNSS signal acquisition module;
the upper computer signal is connected with the GNSS signal playback module, GNSS simulation data are sent to the GNSS signal playback module to convert the simulated satellite signals, and the GNSS signal playback module sends the simulated satellite signals to the sample car to be tested;
the upper computer is in signal connection with the road scene simulation module, and sends scene data to the road scene simulation module, and the road scene simulation module sends a simulated road scene to the sample vehicle to be tested;
the upper computer is connected with the sample car to be tested through the bus communication module signal and performs bidirectional bus data interaction with the sample car to be tested.
The beneficial effect of this scheme is:
the real road condition required by the AR-HUD system test is provided in an original video injection mode, the system flexibility is high, the full life cycle of product design, development, mass production verification and the like is effectively supported, and the fit degree test adopts a matrix image comparison mode; the working condition formulation and the testing process can be managed by the upper computer platform in a unified way, the testing working condition reusability is high, the testing function reusability, the testing problem reproducibility and the testing result consistency are ensured.
Further, the upper computer, the GNSS signal acquisition module, the GNSS signal playback module, the road scene simulation module and the bus communication module are all arranged outside the sample vehicle to be detected.
The beneficial effects are that: through setting up each module independently of the appearance car that awaits measuring outside, can not increase the weight of the appearance car that awaits measuring, guarantee the accuracy of test result.
Further, the road scene simulation module comprises a rotary drum and a projection ring curtain, wherein the rotary drum is positioned below a tire of the sample car to be tested so as to drive the sample car to be tested to move in situ, and the projection ring curtain is positioned at the circumferential position in front of the sample car to be tested so as to display real-time data of the road scene in real time.
The beneficial effects are that: through the setting of road scene simulation module, can let the sample car that awaits measuring carry out the simulation of actual running condition under limited test environment, the system can carry out the update setting and the switching of different scenes according to actual test demand, and the flexibility is high, and test condition reusability is strong, and the test cost is low.
Further, the height of the projection ring curtain is larger than that of the sample car to be detected, and the projection ring curtain is semicircular.
The beneficial effects are that: the projection ring curtain can contain the complete visual field of the running of the sample car to be tested, and the fitting degree of the projection ring curtain with the actual running working condition is improved.
Further, the height of the projection ring curtain is 3.5m, and the semicircular center position of the projection ring curtain is the arrangement position of the head of the sample car to be detected.
The beneficial effects are that: the projection ring curtain can effectively cover the view field of the cockpit, and can ensure that the scene is more fit with the actual condition.
Further, the bus communication module comprises a CAN bus and an Ethernet bus, and the CAN bus supports a CAN protocol and a CAN FD protocol.
The beneficial effects are that: the bus communication module is arranged, so that the bus communication module can adapt to various communication mechanisms and improves the communication adaptability.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an AR-HUD POI functional test system based on GNSS signal simulation according to the present utility model;
fig. 2 is a top view of a road simulation module in an embodiment of an AR-HUD POI functional test system based on GNSS signal simulation according to the present utility model.
Detailed Description
Further details are provided below with reference to the specific embodiments.
Reference numerals in the drawings of the specification include: a projection ring curtain 1 and a rotary drum 2.
Examples
AR-HUD POI functional test system based on GNSS signal simulation, as shown in FIG. 1: the system comprises an upper computer, a GNSS signal acquisition module, a GNSS signal playback module, a road scene simulation module, a bus communication module and a sample car to be tested, wherein the upper computer, the GNSS signal acquisition module, the GNSS signal playback module, the road scene simulation module and the bus communication module are all arranged outside the sample car to be tested, and the upper computer can use the existing processor as a host computer of intel i 7.
The upper computer is connected with the GNSS signal acquisition module through a data cable signal and receives GNSS road data of the GNSS signal acquisition module, so that the GNSS signal acquisition module is used for integrating and generating test cases based on AR-HUD target POI information, road scenes and bus instructions in the data on the upper computer, the test cases are generated in the prior art, the GNSS signal acquisition module can be used for all global navigation satellite systems such as GPS, GLONASS, beidou and Galileo by using the existing LabSat series products, configuration and data transmission are realized by using the external Internet, and the GNSS signal acquisition module can independently work in an external field environment and execute GNSS satellite signal acquisition under the road scenes on a vehicle.
The upper computer is connected with the GNSS signal playback module through an Ethernet cable, the GNSS simulation data contained in the test case are transmitted to the GNSS signal playback module, the GNSS signal playback module can use the existing GSS7000 series products, and the GNSS signal playback module sends simulated satellite signals to the sample car to be tested.
The upper computer signal is connected with the road scene simulation module, scene data contained in the test case are sent to the road scene simulation module, and the road scene simulation module sends simulated road scenes to the sample car to be tested.
The upper computer is connected with the sample car to be tested through a bus communication module signal, performs bidirectional bus data interaction with the sample car to be tested, acquires real-time POI information uploaded by the sample car to be tested and target POI information in a test case through the bus communication module, and is used for obtaining a test result by comparison, wherein the bus communication module comprises a CAN bus and an Ethernet bus, the CAN bus supports a CAN protocol and a CAN FD protocol, the Ethernet bus supports an ETH network protocol, and the bus communication module CAN use products of the existing VN1600 series.
The road scene simulation module comprises a rotary drum 2 and a projection ring screen 1, as shown in fig. 2, the rotary drum 2 is positioned below a tire of a sample car to be tested so as to drive the sample car to be tested to move in situ, the rotary drum 2 uses an existing chassis dynamometer, namely, a roller assembly is utilized to simulate actual road running in a controllable environment, and the projection ring screen 1 is positioned at the circumferential position in front of the sample car to be tested so as to display real-time data of road scene in real time. The height of the projection ring curtain 1 is larger than that of a sample car to be measured, and the projection ring curtain 1 is semicircular. The height of the projection ring curtain 1 is 3.5m, and the head of the sample car to be tested is positioned at the semicircular center of the projection ring curtain 1.
After receiving the analog satellite signal sent by the signal playback module, the sample vehicle to be tested obtains AR-HUD vehicle POI information through self system operation, and returns real-time POI information through the bus communication module.
The specific implementation process is as follows:
in the test, a sample vehicle to be tested is positioned on the rotary drum 2, meanwhile, GNSS road data generated by the GNSS signal acquisition module is acquired in real time and is transmitted to the upper computer, and the upper computer generates a test case based on AR-HUD target POI information, road scene and bus instructions in the data; the upper computer transmits GNSS simulation data contained in the test case to the GNSS signal playback module, meanwhile, the upper computer transmits road scene data in the test case to the road scene simulation module, the rotary drum 2 drives the sample car to be tested to run in situ, and the projection ring screen 1 displays the road scene; in the test process, the upper computer compares the real-time POI information uploaded by the bus communication module with the target POI information in the test case, and outputs a test result, and the specific comparison method is not the scope of the utility model and is not repeated here.
In the embodiment, under a limited laboratory test scene, a rotary drum 2 is used for driving a sample car to be tested to run in situ, the required field range is small, the test is convenient and simple, the cost is low, the real road condition required by the AR-HUD system test is provided in an original video injection mode, the system flexibility is high, the full life cycle of product design, development, mass production verification and the like is effectively supported, and the fit degree test adopts a matrix image comparison mode; the working condition formulation and the testing process can be managed by the upper computer platform in a unified way, the testing working condition reusability is high, the testing function reusability, the testing problem reproducibility and the testing result consistency are ensured.
Compared with the existing test system which is based on real vehicle verification and needs road mileage of nearly hundred thousand kilometers and thousands of road condition scenes, the test period is long, and the dependence on the outdoor road environment is high, the embodiment restores the real scene in a laboratory environment in a hardware-in-loop and video injection mode, so that frequent external field test and road test are avoided, the test efficiency is improved, and the test cost is reduced.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. AR-HUD POI functional test system based on GNSS signal simulation, its characterized in that: the system comprises an upper computer, a GNSS signal acquisition module, a GNSS signal playback module, a road scene simulation module, a bus communication module and a sample car to be tested;
the upper computer is in signal connection with the GNSS signal acquisition module and receives GNSS road data of the GNSS signal acquisition module;
the upper computer signal is connected with the GNSS signal playback module, GNSS simulation data are sent to the GNSS signal playback module to convert the simulated satellite signals, and the GNSS signal playback module sends the simulated satellite signals to the sample car to be tested;
the upper computer is in signal connection with the road scene simulation module, and sends scene data to the road scene simulation module, and the road scene simulation module sends a simulated road scene to the sample vehicle to be tested;
the upper computer is connected with the sample car to be tested through the bus communication module signal and performs bidirectional bus data interaction with the sample car to be tested.
2. The GNSS signal simulation-based AR-HUD POI functional test system according to claim 1, wherein: the upper computer, the GNSS signal acquisition module, the GNSS signal playback module, the road scene simulation module and the bus communication module are all arranged outside the sample car to be detected.
3. The GNSS signal simulation-based AR-HUD POI functional test system according to claim 1, wherein: the road scene simulation module comprises a rotary drum and a projection ring curtain, wherein the rotary drum is positioned below a tire of a sample car to be tested so as to drive the sample car to be tested to move in situ, and the projection ring curtain is positioned at the circumferential position in front of the sample car to be tested so as to display real-time data of the road scene in real time.
4. A GNSS signal simulation based AR-HUD POI functional test system according to claim 3, wherein: the height of the projection ring curtain is larger than that of the sample car to be measured, and the projection ring curtain is semicircular.
5. The GNSS signal simulation-based AR-HUD POI functional test system according to claim 4, wherein: the height of the projection ring curtain is 3.5m greater than that of the sample car to be tested, and the semicircular center position of the projection ring curtain is the arrangement position of the head of the sample car to be tested.
6. The GNSS signal simulation-based AR-HUD POI functional test system according to claim 5, wherein: the bus communication module comprises a CAN bus and an Ethernet bus, and the CAN bus supports a CAN protocol and a CAN FD protocol.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647404A (en) * | 2024-01-30 | 2024-03-05 | 交通运输部公路科学研究所 | Predictive cruise control system test platform and test method based on rotary drum rack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647404A (en) * | 2024-01-30 | 2024-03-05 | 交通运输部公路科学研究所 | Predictive cruise control system test platform and test method based on rotary drum rack |
| CN117647404B (en) * | 2024-01-30 | 2024-04-19 | 交通运输部公路科学研究所 | Predictive cruise control system test platform and test method based on rotary drum rack |
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Effective date of registration: 20240312 Address after: 401122 No.9 Jinyu Avenue, North New District, Yubei District, Chongqing Patentee after: China Automotive Engineering Research Institute Co.,Ltd. Country or region after: China Patentee after: China Automobile Research Institute (Jiangsu) Automotive Engineering Research Institute Co.,Ltd. Address before: 401122 No.9 Jinyu Avenue, North New District, Yubei District, Chongqing Patentee before: China Automotive Engineering Research Institute Co.,Ltd. Country or region before: China |
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