Millimeter wave door radar function verification device and test method

Abstract

The application relates to a kind of millimeter wave door radar function verification devices, including movable target, to be measured millimeter wave door radar is connected with vehicle door assembly, and to be measured millimeter wave door radar and vehicle door assembly are connected with industrial computer;Wherein, when the device is in test scene, industrial computer simulates whole vehicle communication environment, target moves in horizontal plane, to be measured millimeter wave door radar detects the motion state of target, vehicle door assembly determines the opening and / or closing of door according to the motion state of target, to be measured millimeter wave door radar feeds back the motion state of target and the opening and / or closing signal of door to industrial computer, and industrial computer evaluates the accuracy of test result according to the feedback of to be measured millimeter wave door radar.The application can improve verification efficiency, shorten development cycle and save development cost.

Description

Technical Field

[0001] This invention relates to the field of radar testing technology, and more specifically to a millimeter-wave gate radar functional verification device and testing method. Background Technology

[0002] With the development of vehicle intelligence, millimeter-wave radar, as a sensor for perceiving the vehicle's external environment, is increasingly being applied to vehicles of different levels, providing a safe and convenient experience for drivers and passengers. In automatic swing door opening systems, millimeter-wave radar serves as a crucial sensor, detecting obstacles within the door's opening range and transmitting this information to the door opening control module, thereby controlling the door's opening process.

[0003] During the development and verification of door radar, functional testing and verification under different scenarios are required. Current verification methods primarily rely on real-vehicle verification and various physical testing scenarios. However, this testing approach is inefficient for the overall product development process, failing to conduct extensive physical verification during the product development phase, significantly extending the development cycle and increasing development costs. Therefore, it is necessary to build a millimeter-wave door radar functional verification device in a fixed indoor environment. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a millimeter-wave gate radar function verification device and testing method, which enables the development, debugging, and verification of millimeter-wave gate radar functions during the product development stage, thereby improving verification efficiency, shortening the development cycle, and saving development costs.

[0005] This invention provides a millimeter-wave door radar functional verification device, comprising a movable target object, a millimeter-wave door radar under test connected to a vehicle door assembly, and both the millimeter-wave door radar under test and the vehicle door assembly connected to an industrial control computer; wherein, when the device is in a test scenario, the industrial control computer simulates a vehicle communication environment, the target object moves in a horizontal plane, the millimeter-wave door radar under test detects the movement state of the target object, the vehicle door assembly determines the opening and / or closing of the vehicle door based on the movement state of the target object, the millimeter-wave door radar under test feeds back the movement state of the target object and the opening and / or closing signals of the vehicle door to the industrial control computer, and the industrial control computer evaluates the accuracy of the test results based on the feedback from the millimeter-wave door radar under test.

[0006] Furthermore, it also includes a movable frame, on which a fixed platform is fixedly mounted, the fixed platform suspending the target object, the movable frame being connected to a frame moving motor, the frame moving motor being configured to drive the movable frame to move in a horizontal plane, thereby causing the target object to move along with the movable frame.

[0007] Furthermore, the fixed platform is configured to be movable in the vertical direction.

[0008] Furthermore, the door assembly includes a door and a door pivot for suspending the door.

[0009] Furthermore, the door is equipped with a door control motor and a door control module, both of which are communicatively connected to the millimeter-wave door radar under test.

[0010] Furthermore, the industrial control computer is connected to the door control module.

[0011] Furthermore, the industrial control computer is equipped with a signal generation simulator.

[0012] Furthermore, the footprint of the millimeter-wave gate radar functional verification device is greater than or equal to 4m × 4m.

[0013] This invention also provides a method for testing the function of a millimeter-wave door radar, comprising: step S1, setting up the aforementioned millimeter-wave door radar function verification device; step S2, turning on the power supply and triggering the signal simulator in the industrial control computer to simulate the vehicle communication environment and enable the millimeter-wave door radar under test to work normally; step S3, suspending the target object on a fixed platform and driving the target object to move through a frame moving motor to simulate the target object being in different positions within the door movement area, or making the target object move at a set speed; step S4, the millimeter-wave door radar under test detecting the movement state of the target object and transmitting the movement state of the target object to the door control module inside the door; step S5, the door control module controlling the opening and / or closing of the door according to the movement state of the target object, the millimeter-wave door radar under test feeding back the movement state of the target object and the opening and / or closing signals of the door to the industrial control computer, and the industrial control computer evaluating the accuracy of the test results based on the feedback from the millimeter-wave door radar under test; step S6, replacing the target object and repeating steps S3 to S5 until all types of target objects under test have been tested.

[0014] The millimeter-wave gate radar functional verification device and testing method provided by this invention have the following beneficial effects:

[0015] 1) This invention can test and verify the target detection capability and door control performance of millimeter-wave door radar in a laboratory environment, shortening the development cycle and saving development costs;

[0016] 2) This invention can test and verify millimeter-wave gate radar for different types of targets and different motion states of targets, thus improving the verification efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the millimeter-wave gate radar functional verification device according to the present invention. Detailed Implementation

[0018] The preferred embodiments of the present invention are given below with reference to the accompanying drawings and described in detail.

[0019] like Figure 1 As shown, the millimeter-wave door radar functional verification device provided by the present invention includes a movable frame 1, a fixed platform 2 on the movable frame 1, a target object suspended on the fixed platform 2, a millimeter-wave door radar 3 under test connected to a door assembly 4, and both the millimeter-wave door radar 3 under test and the door assembly 4 are connected to an industrial control computer 5 via a wiring harness 6. When the device of the present invention is in a test scenario, the industrial control computer 5 simulates the vehicle communication environment, the target object moves in the horizontal plane following the movable frame 1, the millimeter-wave door radar 3 under test detects the movement state of the target object, the door assembly 4 determines the opening and / or closing of the door based on the movement state of the target object, the millimeter-wave door radar 3 under test feeds back the movement state of the target object and the opening and / or closing signals of the door to the industrial control computer 5, and the industrial control computer 5 evaluates the accuracy of the test results based on the information fed back by the millimeter-wave door radar 3 under test.

[0020] The movable frame 1 is connected to a frame movement motor, enabling the movable frame 1 to simulate a target at any point in the horizontal plane through movement in the X and Y directions. The X and Y directions are two mutually perpendicular horizontal directions, each driven by a motor. Figure 1 The arrows indicate that X represents the horizontal direction and Y represents the vertical direction. Simultaneously, the motion state of the target object (stationary or constant / variable speed movement) can be changed by controlling the moving motor of the control frame. During testing, controlling the speed and trajectory of the movable frame 1 allows for the simulation of a realistic target scene.

[0021] The fixed platform 2 is fixed to the movable frame 1 and moves with the movable frame 1 in the X and Y directions. The fixed platform 2 can suspend different types of targets, including wooden stakes, cement cylinders, metal cylinders, bicycles, dummies, wooden boxes, and other targets that would appear in real road scenarios, for testing the recognition and detection of different targets in the scenario. At the same time, the fixed platform 2 can move vertically to simulate targets at different heights.

[0022] The door assembly 4 includes a door 41 and a door pivot 42 for suspending the door 41. The door 41 is connected to the door pivot 42 at a fixed point, which can simulate the environment where the door is fixed to the body sheet metal. Furthermore, the door 41 is equipped with a door control motor and a door control module. Both the door control motor and the door control module are communicatively connected to the millimeter-wave door radar 3 under test to simulate the automatic door opening action and acquire door opening and / or closing signals.

[0023] Since the millimeter-wave door radar needs to receive vehicle communication signals during normal operation, the industrial control computer 5 is equipped with a signal generator simulator to produce simulated vehicle body signals. Simultaneously, the industrial control computer 5 is connected to the door control module to simulate the communication environment of the entire door control system. Furthermore, during testing, the industrial control computer 5 monitors the signals fed back by the millimeter-wave door radar 3 under test to evaluate the accuracy of the test results.

[0024] The millimeter-wave gate radar functional verification device of the present invention must occupy an area of ​​4m×4m or greater. Furthermore, within the working area that the millimeter-wave gate radar can detect, except for the suspended target, the remaining parts (i.e., the fixed platform 2, the movable frame 1, and the frame moving motor) must be covered with absorbing material to avoid the introduction of false targets by metal materials, which could cause test failure.

[0025] Based on the above-described device, the present invention also provides a method for testing the functionality of a millimeter-wave gate radar, comprising the following steps:

[0026] Step S1: Construct the above-mentioned millimeter-wave gate radar functional verification device.

[0027] Step S2: Turn on the power to trigger the signal simulator in the industrial control computer 5, simulate the vehicle communication environment, and enable the millimeter-wave gate radar 3 under test to work normally.

[0028] Step S3: Suspend the target object on the fixed platform 2, and drive the target object to move through the frame moving motor to simulate the target object being in different positions within the door movement area, or make the target object move at a set speed.

[0029] In step S4, the millimeter-wave door radar 3 under test detects the motion state of the target object and transmits the motion state of the target object to the door control module inside the door 41. The motion state includes the position, speed, and trajectory of the target object.

[0030] In step S5, the door control module controls the opening and / or closing of the door according to the motion state of the target object. The millimeter-wave door radar 3 under test feeds back the motion state of the target object and the opening and / or closing signals of the door to the industrial control computer 5. The industrial control computer 5 evaluates the accuracy of the test results based on the feedback from the millimeter-wave door radar 3 under test.

[0031] Step S6: Change the target object and repeat steps S3 to S5 until all target objects of the test type have been tested.

[0032] This invention can accurately simulate the specific location of a target object using a two-dimensional movable frame. A fixed platform on the movable frame can hold different types of target objects, and motors can be used to control the movement of these different objects. This invention allows for functional testing and verification during the product prototype development stage, and, in conjunction with a door control module, verification of door opening and closing control. By fully verifying functionality and performance before actual vehicle testing and road testing, product problems can be identified and resolved early, thus saving money, time, and human resources.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. Various variations can be made to the above embodiments of the present invention. That is, all simple and equivalent changes and modifications made based on the claims and description of this invention fall within the protection scope of the claims of this patent. All aspects not described in detail in this invention are conventional technical content.

Claims

1. A millimeter-wave gate radar functional verification device, characterized in that, The system includes a movable target object, a millimeter-wave door radar under test connected to a door assembly, the door assembly including a door, and a door control motor and door control module located within the door. Both the millimeter-wave door radar under test and the door assembly are connected to an industrial control computer, which contains a signal generation simulator. When the device is in a test scenario, the industrial control computer simulates the vehicle communication environment through a signal generator simulator to ensure the millimeter-wave door radar under test operates normally. The target object moves in a horizontal plane within the door's movement area. The millimeter-wave door radar under test detects the target object's movement state and transmits it to the door control module. Based on the target object's movement state, the door control module controls the door to open or close via the door control motor. The millimeter-wave door radar under test feeds back the target object's movement state and the door's opening or closing signal to the industrial control computer. The industrial control computer evaluates the accuracy of the test results based on the feedback from the millimeter-wave door radar under test.

2. The millimeter-wave gate radar functional verification device according to claim 1, characterized in that, It also includes a movable frame, on which a fixed platform is fixed, the fixed platform suspends the target object, the movable frame is connected to a frame moving motor, the frame moving motor is configured to drive the movable frame to move in a horizontal plane, thereby causing the target object to move with the movable frame.

3. The millimeter-wave gate radar functional verification device according to claim 2, characterized in that, The fixed platform is configured to be movable in the vertical direction.

4. The millimeter-wave gate radar functional verification device according to claim 1, characterized in that, The door assembly also includes a door pivot for suspending the door.

5. The millimeter-wave gate radar functional verification device according to claim 1, characterized in that, Both the door control motor and the door control module are communicatively connected to the millimeter-wave door radar under test.

6. The millimeter-wave gate radar functional verification device according to claim 1, characterized in that, The industrial control computer is connected to the door control module.

7. The millimeter-wave gate radar functional verification device according to claim 1, characterized in that, The footprint of the millimeter-wave gate radar functional verification device is greater than or equal to 4m × 4m.

8. A method for testing the functionality of a millimeter-wave gate radar, characterized in that, include: Step S1: Construct the millimeter-wave gate radar functional verification device as described in any one of claims 1 to 6; Step S2: Turn on the power to trigger the signal simulator in the industrial control computer to simulate the vehicle communication environment and enable the millimeter-wave gate radar under test to work normally. Step S3: Suspend the target object on a fixed platform and drive the target object to move through a frame moving motor to simulate the target object being in different positions within the door movement area, or to make the target object move at a set speed. Step S4: The millimeter-wave door radar under test detects the motion state of the target object and transmits the motion state of the target object to the door control module inside the door. Step S5: The door control module controls the opening or closing of the door through the door control motor according to the motion state of the target object. The millimeter-wave door radar under test feeds back the motion state of the target object and the opening or closing signal of the door to the industrial control computer. The industrial control computer evaluates the accuracy of the test results based on the feedback from the millimeter-wave door radar under test. Step S6: Change the target object and repeat steps S3 to S5 until all target objects of the test type have been tested.

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