Tunnel test system and method based on V2X
A test method and tunnel technology, applied in the field of V2X-based tunnel test system, can solve problems such as errors in vehicle test results, and achieve the effect of improving accuracy
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Embodiment 1
[0030] The tunnel test method based on V2X, as attached figure 1 shown, including the following steps:
[0031] The test preparation steps include the following steps:
[0032]S101: Select a test site. In this embodiment, a tunnel is used as a test site as an example. UWB fixed base stations and roadside equipment (RSU) are arranged at both ends of the tunnel entrance, and several UWB fixed base stations are arranged at intervals in the tunnel. In this embodiment, the test vehicle is defined as HV, as attached figure 2 shown. The distance between UWB fixed base stations is 50 meters. The distance between UWB fixed base stations is related to the positioning accuracy of the test vehicle. The distance between UWB fixed base stations can be adjusted according to the needs, so as to adjust the positioning accuracy of the test vehicle.
[0033] S102: Select a test vehicle. The test vehicle includes a test vehicle. The test vehicle is equipped with a V2X communication module and...
Embodiment 2
[0040] The difference between this embodiment and the first embodiment is that the reaction performance of the test vehicle in a closed environment such as a tunnel is also tested.
[0041] The V2X-based tunnel test method also includes an emergency test step.
[0042] The test preparation step also includes the following steps:
[0043] S103: The test vehicle is also equipped with a data acquisition system. image 3 As shown, the UWB mobile base station is integrated in the data acquisition system. In this embodiment, the data acquisition system is also integrated with a UDP-CAN conversion module, an IMU, a wheel speed sensor and a camera, and the data acquisition system is used to collect the driving state information of the test vehicle. The test vehicle also includes a background car. The background car is equipped with a V2X communication module and a driving control module. The test vehicle and the background car communicate through the V2X communication module. The dr...
Embodiment 3
[0054] The difference between the present embodiment and the second embodiment is that, in addition to conventional emergencies during the driving process of a V2X-based vehicle, due to the special structure of the tunnel and changes in the external environment, there will also be other situations, such as Some people use WIFI, the changes and flickering of lights in the tunnel, the exhaust emission of large trucks, etc. The use of WIFI will occupy the frequency band used by V2X, causing communication problems, and the changes and flickering of lights and the emission of exhaust will cause changes in light and shade. For vehicles using VX technology, the light and shade changes will cause errors in the vehicle's recognition of the external environment.
[0055] In this embodiment, the test preparation step of the V2X-based tunnel test method further includes the following steps:
[0056] S104: The test car is also equipped with WIFI communication equipment, and the rear of the...
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