An unmanned millimeter wave radar practical training device

Abstract

The application discloses an unmanned millimeter wave radar practical training device, which comprises a base, a model component and a display screen, wherein the model component comprises a shell, a wheel module, a slide rail module and a millimeter wave radar; the shell is provided with a voltage converter, a collision avoidance controller, a service host, a switch and an ultrasonic radar; the voltage converter is electrically connected with the collision avoidance controller, the service host, the switch, the millimeter wave radar and the ultrasonic radar through connecting lines; the millimeter wave radar is installed on the slide rail module through a mounting seat; the millimeter wave radar can move in four directions, i.e., front, back, left and right; and the millimeter wave radar and the ultrasonic radar collect data of the driving car; the application enables students to intuitively and clearly understand the connection relationship between the millimeter wave radar and the electrical elements in the car and the working principle of the millimeter wave radar, and is suitable for the technical field of vehicle teaching.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle teaching, and particularly relates to an unmanned driving millimeter wave radar practical training device. BACKGROUND

[0002] Unmanned driving technology integrates many high technologies such as artificial intelligence, computer vision, integrated navigation, information fusion, automatic control and system architecture, and is a product of high development of computer science and automation technology, and is also an important symbol to measure the scientific and technological strength and industrial level of a country. Because it has incomparable advantages over ordinary vehicles in improving vehicle driving performance, reducing labor intensity of drivers, reducing traffic accident rate, and operating in adverse conditions and extreme conditions, etc., it has become a key high-tech project that many countries and famous automobile companies and engineering machinery manufacturers compete to develop;

[0003] Millimeter wave radar, as its name implies, is a radar working in the millimeter wave frequency band. Millimeter wave refers to electromagnetic wave with a length of 1-10 mm, and the corresponding frequency range is 30-300 GHz. Millimeter wave is located in the wavelength range where microwave and far infrared wave overlap, so millimeter wave has the advantages of both wave spectra (strong environmental adaptability and high detection accuracy), and also has its own unique properties. The theory and technology of millimeter wave are the extension of microwave to high frequency and the development of light wave to low frequency. According to the wave propagation theory, the higher the frequency, the shorter the wavelength, the higher the resolution, and the stronger the penetration ability, but the transmission distance is far; on the contrary, the lower the frequency, the longer the wavelength, the stronger the diffraction ability, and the farther the transmission distance. Therefore, compared with microwave, millimeter wave has higher human resolution, good directivity, strong anti-interference ability and good detection performance. Compared with infrared, millimeter wave has small atmospheric attenuation, good penetration to smoke and dust, and small influence on weather, which determines that millimeter wave radar has all-weather working ability.

[0004] In the field of automobile active safety, automobile millimeter wave radar sensor is one of the core components, and 77GHz millimeter wave radar is an indispensable key part on intelligent automobile, which is a sensor device that can quickly perceive the existence of surrounding environment objects, relative distance, relative speed, azimuth angle and other information within 0-200 meters in all-weather scenes. Millimeter wave radar can be used for target detection and collision warning in various scenes of unmanned driving.

[0005] In the vehicle practical teaching, in the application teaching of millimeter wave radar in unmanned driving, students can only see the application of millimeter wave radar in unmanned driving of the car through video and pictures, and cannot intuitively see the parts and the connection relationship and working principle of the parts of millimeter wave radar in unmanned driving, so that the teaching quality of teachers is greatly reduced, students cannot intuitively understand the application principle of millimeter wave radar in the car, thereby leading to poor learning effect of students, therefore, we propose an unmanned millimeter wave radar practical training device. SUMMARY

[0006] The present application provides an unmanned millimeter wave radar practical training device to solve the above technical problems.

[0007] To achieve the above object, the technical scheme adopted by the present application is as follows:

[0008] An unmanned millimeter wave radar practical training device, the key point of which is that the practical training device comprises a base, a model assembly and a display screen located on the base, wherein: the display screen is located on the front side of the model assembly, and the display screen is fixed to the base through a stand; the model assembly comprises a shell, a slide rail module and a millimeter wave radar, the shell is fixed to the base through a stand, the shell is provided with a voltage converter, a collision avoidance controller, a service host, a switch and an ultrasonic radar, the voltage converter is electrically connected to the collision avoidance controller, the service host, the switch, the millimeter wave radar and the ultrasonic radar through connecting lines respectively, the millimeter wave radar and the ultrasonic radar are electrically connected to the collision avoidance controller through CAN lines respectively, the collision avoidance controller is electrically connected to the service host through a CAN line, the service host is electrically connected to the switch through a network cable, and the service host is electrically connected to the display screen through a connecting line; the upper parts of the left and right sides of the shell are respectively provided with a left side plate and a right side plate, the slide rail module is fixed to the left side plate and the right side plate through a horizontal rod, the millimeter wave radar is installed in the slide rail module through a mounting seat, and the millimeter wave radar can move in four directions of front, back, left and right along with the slide rail module.

[0009] In a possible implementation manner, the voltage converter, the service host, the collision avoidance controller and the switch are all installed on the bottom plate of the shell, wherein the voltage converter is located on the right side of the service host, the service host is located on the rear side of the collision avoidance controller, the switch is located on the left side of the collision avoidance controller, and the service host is located on the front side of the switch; the number of the ultrasonic radars is eight, and they are installed in eight directions of front left, front right, rear left, rear right, left front, left rear, right front and right rear of the side plate of the shell.

[0010] In a possible implementation, the left side plate is symmetrical to the right side plate, and the left side plate and the right side plate are both made of transparent acrylic material.

[0011] In a possible implementation, the left side plate is provided with a working principle diagram, and the right side plate is provided with a name of the practical training device.

[0012] In a possible implementation, the slide rail module comprises a lower rail, a lower slide block, an upper rail and an upper slide block, the lower rail is fixed on the horizontal rod, the lower slide block is installed in the lower rail and can move left and right in the lower rail, the upper rail is fixed on the lower slide block, and the upper slide block is installed in the upper rail and can move forward and backward in the upper rail.

[0013] In a possible implementation, the slide rail module further comprises a lower hand wheel and an upper hand wheel, the lower hand wheel is installed on the lower slide block, and the lower slide block is driven to move left and right on the lower rail by shaking the lower hand wheel; the upper hand wheel is installed on the upper slide block, and the upper slide block is driven to move forward and backward on the upper rail by shaking the upper hand wheel.

[0014] In a possible implementation, the slide rail module further comprises a slide block circuit board, a slide block remote controller, a first motor and a second motor, the slide block circuit board is installed on the shell, the slide block circuit board is electrically connected with the voltage converter through a connecting line, a receiver of the slide block circuit board is wirelessly connected with a transmitter in the slide block remote controller, the slide block circuit board is electrically connected with the first motor and the second motor through connecting lines respectively, the first motor is installed on the lower slide block, and the lower slide block is driven to move left and right on the lower rail by the first motor, and the second motor is installed on the upper slide block, and the upper slide block is driven to move on the upper rail by the second motor.

[0015] In a possible implementation, the model assembly further comprises a wheel module, the wheel module comprises a fixing plate, a motor plate, a bearing seat and a simulation motor, the fixing plate is fixed on the base through a fastener, the motor plate is fixed on the fixing plate, the simulation motor is installed on one side of the motor plate, the bearing seat is fixed on the fixing plate, the simulation motor is installed on the bearing seat, and the number of the bearing seats is two and located on the left and right sides of the wheel speed sensor.

[0016] In a possible implementation, the base comprises a seat body and a seat plate, the seat plate is installed above the seat body, and the seat plate is provided with lane lines.

[0017] In one possible implementation, the base further includes four casters, which are respectively fixed at the four corners of the lower end of the base.

[0018] Beneficial effects:

[0019] This invention provides an unmanned millimeter-wave radar training device. The device includes a base, a model assembly on the base, and a display screen. The model assembly includes a housing, a slide rail module, and a millimeter-wave radar. The housing houses a voltage converter, an anti-collision controller, a service host, a switch, and an ultrasonic radar. The voltage converter is electrically connected to the anti-collision controller, service host, switch, millimeter-wave radar, and ultrasonic radar via connecting cables. The millimeter-wave radar and ultrasonic radar are electrically connected to the anti-collision controller via CAN lines. The anti-collision controller is electrically connected to the service host via a CAN line. The service host is electrically connected to the switch via a network cable and to the display screen via connecting cables. A left side plate and a right side plate are respectively provided on the upper left and right sides of the housing. The slide rail module is fixed to the left and right side plates by crossbars. The millimeter-wave radar is mounted on the slide rail module via a mounting bracket. With the sliding rail module capable of moving in four directions (forward, backward, left, and right), this invention controls the position of the millimeter-wave radar through the sliding rail module. In practical training, it allows students to comprehensively demonstrate the millimeter-wave radar and ultrasonic radar data collected from the vehicle. This data is then transmitted to the collision avoidance controller for processing, and finally converted into graphical data by the host computer. The host computer has integrated processing and display capabilities, and the graphical data is displayed on a screen. This invention enables students to more intuitively and clearly understand the connection relationship, working process, and working principle of millimeter-wave radar, ultrasonic radar, and the vehicle's internal electrical components in autonomous driving. It makes teaching more vivid and engaging, fully mobilizing student enthusiasm. Students can intuitively and clearly grasp the connection principle, working principle, and working process of autonomous driving millimeter-wave radar and ultrasonic radar with the vehicle, thus improving the teacher's teaching effectiveness.

[0020] This invention provides an unmanned millimeter-wave radar training device with a left and right side panel that are symmetrical to each other. Both the left and right side panels are made of transparent acrylic material. By designing the left and right side panels to be made of acrylic material, students can clearly see the structure of the internal parts of the shell.

[0021] This invention provides an unmanned millimeter-wave radar training device. The working principle diagram is printed on the left side panel, and the name of the training device is printed on the right side panel, which can enable students to clearly understand the principle of unmanned millimeter-wave radar and the name of this invention. Attached Figure Description

[0022] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the present application and are not intended to limit the application.

[0023] In the drawings:

[0024] Figure 1 Structure schematic view of the present application embodiment 1, 2;

[0025] Figure 2 Front view of the present application embodiment 1, 2;

[0026] Figure 3 Rear view of the present application embodiment 1, 2;

[0027] Figure 4 Left view of the present application embodiment 1, 2;

[0028] Figure 5 Right view of the present application embodiment 1, 2;

[0029] Figure 6 Top view of the present application embodiment 1, 2;

[0030] Figure 7 Circuit connection schematic view of the ultrasonic radar and millimeter wave radar in the present application embodiment 1, 2.

[0031] Marked parts: 1 - display screen, 2 - stand, 3 - shell, 6 - voltage converter, 7 - anti-collision controller, 8 - service host, 9 - left side plate, 10 - right side plate, 11 - crossbar, 12 - switch, 13 - transmission shaft, 14 - simulation wheel, 15 - seat body, 16 - seat plate, 17 - ultrasonic radar, 18 - name. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0033] Embodiment 1

[0034] The present embodiment discloses an unmanned millimeter wave radar practical training device, like Figures 1-7As shown, the practical training device includes a base, and a model assembly and a display screen 1 located on the base, wherein: the display screen 1 is located on the front side of the model assembly, and the display screen 1 is fixed on the base through a stand 2, specifically, the included angle between the display screen 1 and the horizontal plane is α, wherein 15°≤α≤50°, the model assembly includes a shell 3, a wheel module, a slide rail module, a millimeter wave radar, and the shell 3 is fixed on the base through the stand 2, and the shell 3 is installed with a voltage converter 6, a collision avoidance controller 7, a service host 8, a switch 12 and an ultrasonic radar 17, the display screen 1 and the voltage converter 6 are respectively electrically connected with the external power supply through the power lines, and the voltage converter 6 is respectively electrically connected with the collision avoidance controller 7, the service host 8, the switch 12, the millimeter wave radar and the ultrasonic radar 17 through the connecting lines, the millimeter wave radar and the ultrasonic radar 17 are respectively electrically connected with the collision avoidance controller 7 through the CAN lines, the collision avoidance controller 7 is electrically connected with the service host 8 through the CAN line, the service host 8 is electrically connected with the switch 12 through the network cable, and the service host 8 is electrically connected with the display screen 1 through the connecting line; the upper parts of the left and right sides of the shell 3 are respectively provided with a left side plate 9 and a right side plate 10, the slide rail module is fixed on the left side plate 9 and the right side plate 10 through a cross bar 11, the millimeter wave radar is installed on the slide rail module through a mounting seat, the millimeter wave radar can move in four directions of front, back, left and right along with the slide rail module, the position of the millimeter wave radar can be adjusted, the position of the millimeter wave radar can be adjusted according to the demand, and the millimeter wave radar can be fully displayed to students in practical teaching; the number of the wheel module is four and is respectively located at the four corners of the shell 3, the wheel module includes an analog motor and a transmission shaft 13, the rotating shaft of the analog motor is connected with one end of the transmission shaft 13 through a coupling, and an analog wheel 14 is installed at the other end of the transmission shaft 13, in the embodiment, the analog motor drives the analog wheel 14, simulates the rolling of the real automobile wheel, and the analog wheel 14 rotates along with the rotation of the analog motor, in the embodiment, the position of the millimeter wave radar can be controlled through the slide rail module, the millimeter wave radar can be fully displayed to students in practical teaching, the millimeter wave radar and the ultrasonic radar 17 collect the data of the driving automobile, process the collected data through the collision avoidance controller 7, convert the data into graphic data through the service host 8, the service host 8 has the integrated processing and display capability, and finally the graphic data on the service host 8 is displayed on the display screen 1; the base in the embodiment includes a seat body 15 and a seat plate 16, the seat plate 16 is installed above the seat body 15, and lane lines are printed on the seat plate 16, and the base further includes four casters, which are respectively fixed at the four corners of the lower end of the seat body 15, the casters facilitate the movement of the embodiment, the movement of the embodiment in practical teaching is convenient for teachers, students can see the structure of the practical training device without dead angle, and the teaching quality is improved;

[0035] The application enables students to more intuitively and clearly understand the connection relationship, working process and working principle of the millimeter wave radar, ultrasonic wave radar and electrical elements in the car in the unmanned driving, makes the teaching more vivid and image, fully mobilizes the enthusiasm of students, can enable students to intuitively and clearly master the connection principle and working principle and working process of the millimeter wave radar, ultrasonic wave radar and car in the unmanned driving, and improves the teaching effect of teachers.

[0036] The voltage converter 6, the service host 8, the anti-collision controller 7 and the switch 12 of the embodiment are all installed on the bottom plate of the shell 3, wherein the voltage converter 6 is located at the right side of the service host 8, the service host 8 is located at the rear side of the anti-collision controller 7, the switch 12 is located at the left side of the anti-collision controller 7, and the service host 8 is located at the front side of the switch 12; the number of the ultrasonic wave radars 17 is eight, and they are respectively installed at the front left, front right, rear left, rear right, left front, left rear, right front and right rear of the side plate of the shell 3; the left side plate 9 and the right side plate 10 are mutually symmetrical, and both are made of transparent acrylic material, so that students can clearly see the structure of the parts inside the shell 3; the working principle diagram 17 is printed on the left side plate 9, and the name 18 of the practical training device is printed on the right side plate 10, so that students can clearly understand the principle of the millimeter wave radar in the unmanned driving and the name of the practical training device.

[0037] The specific structure of the slide rail module of the embodiment is that the slide rail module comprises a lower rail, a lower sliding block, an upper rail and an upper sliding block, the lower rail is fixed on the cross bar 11, the lower sliding block is installed in the lower rail and can move left and right in the lower rail, the upper rail is fixed on the lower sliding block, and the upper sliding block is installed in the upper rail and can move forward and backward in the upper rail, the slide rail module further comprises a lower hand wheel and an upper hand wheel, the lower hand wheel is installed on the lower sliding block and drives the lower sliding block to move left and right on the lower rail by shaking the lower hand wheel, and the upper hand wheel is installed on the upper sliding block and drives the upper sliding block to move forward and backward on the upper rail by shaking the upper hand wheel, so that the position of the millimeter wave radar can be adjusted according to actual installation requirements by moving the millimeter wave radar forward, backward, left and right.

[0038] The specific structure of the wheel module of the embodiment is that the wheel module further comprises a fixing plate, a motor plate and a bearing seat, the fixing plate is fixedly connected to the base through fasteners, the motor plate is fixedly connected to the fixing plate, the simulation motor is installed on one side of the motor plate, the bearing seat is fixedly connected to the fixing plate, and the simulation motor is installed on the bearing seat, the number of the bearing seats is two and they are respectively located on the left and right sides of the wheel speed sensor, the simulation motor drives the transmission shaft 13 to rotate in the embodiment, the transmission shaft 13 drives the simulation wheel 14 to rotate, so that the driving of a real car can be simulated, and the number of the bearing seats is two and they are respectively located on the left and right sides of the wheel speed sensor.

[0039] Embodiment 2

[0040] Based on the concept of the sliding module of embodiment 1, this embodiment discloses an unmanned millimeter wave radar practical training device, the sliding module includes a lower track, a lower sliding block, an upper track and an upper sliding block, the lower track is fixed on the crossbar 11, the lower sliding block is installed in the lower track and can move left and right in the lower track, the upper track is fixed on the lower sliding block, the upper sliding block is installed in the upper track and can move forward and backward in the upper track, the sliding rail module further includes a sliding block circuit board, a sliding block remote controller, a first motor and a second motor, the sliding block circuit board is installed on the shell 3, the sliding block circuit board is electrically connected with the voltage converter 6 through the connecting line, the receiver of the sliding block circuit board and the transmitter in the sliding block remote controller are wirelessly connected, the sliding block circuit board is electrically connected with the first motor and the second motor through the connecting line respectively, the first motor is installed on the lower sliding block, this embodiment drives the lower sliding block to move left and right on the lower track through the first motor, the second motor is installed on the upper sliding block, the upper sliding block is driven to move forward and backward on the upper track through the second motor, the difference between this embodiment and embodiment 1 is that this embodiment drives the lower sliding block to move the millimeter wave radar through the first motor, drives the upper sliding block to move the millimeter wave radar through the second motor, without manual mode, more convenient and practical.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the scope of protection of the claims of the present application.

Claims

1. An unmanned millimeter-wave radar training device, characterized in that: The training device includes a base, a model assembly and a display screen (1) located on the base, wherein: the display screen (1) is located on the front side of the model assembly, and the display screen (1) is fixed to the base by a column (2); the model assembly includes a housing (3), a sliding rail module and a millimeter-wave radar, the housing (3) is fixed to the base by a column (2), and the housing (3) is equipped with a voltage converter (6), an anti-collision controller (7), a service host (8), a switch (12) and an ultrasonic radar (17), and the voltage converter (6) is electrically connected to the anti-collision controller (7), the service host (8), the switch (12), the millimeter-wave radar and the ultrasonic radar (17) respectively through connecting lines. The millimeter-wave radar and ultrasonic radar (17) are electrically connected to the anti-collision controller (7) via CAN line. The anti-collision controller (7) is electrically connected to the service host (8) via CAN line. The service host (8) is electrically connected to the switch (12) via network cable. The service host (8) is electrically connected to the display screen (1) via connecting line. A left side plate (9) and a right side plate (10) are respectively provided on the upper left and right sides of the housing (3). The slide rail module is fixed on the left side plate (9) and the right side plate (10) via crossbar (11). The millimeter-wave radar is mounted on the slide rail module via mounting base. The millimeter-wave radar can move in four directions (front, back, left, and right) with the slide rail module. The voltage converter (6), the service host (8), the anti-collision controller (7), and the switch (12) are all installed on the bottom plate of the housing (3). The voltage converter (6) is located on the right side of the service host (8), the service host (8) is located behind the anti-collision controller (7), the switch (12) is located on the left side of the anti-collision controller (7), and the service host (8) is located in front of the switch (12). There are eight ultrasonic radars (17), which are installed in eight positions on the side plate of the housing (3): front left, front right, rear left, rear right, left front, left rear, right front, right front, right rear. The left side panel (9) and the right side panel (10) are symmetrical to each other, and both the left side panel (9) and the right side panel (10) are made of transparent acrylic material.

2. The unmanned millimeter-wave radar training device according to claim 1, characterized in that: The working principle diagram is printed on the left side plate (9), and the name (18) of the training device is printed on the right side plate (10).

3. The unmanned millimeter-wave radar training device according to claim 1, characterized in that: The slide rail module includes a lower rail, a lower slider, an upper rail, and an upper slider. The lower rail is fixed on the crossbar (11). The lower slider is installed in the lower rail and can move left and right within the lower rail. The upper rail is fixed on the lower slider. The upper slider is installed in the upper rail and can move back and forth within the upper rail.

4. The unmanned millimeter-wave radar training device according to claim 3, characterized in that: The slide rail module (19) also includes a lower handwheel and an upper handwheel (20). The lower handwheel is installed on the lower slide block and the lower slide block is driven to move left and right on the lower track by shaking the lower handwheel. The upper handwheel (20) is installed on the upper slide block and the upper slide block is driven to move back and forth on the upper track by shaking the upper handwheel (20).

5. The unmanned millimeter-wave radar training device according to claim 3, characterized in that: The slide rail module also includes a slider circuit board, a slider remote controller, a first motor, and a second motor. The slider circuit board is mounted on the housing (3). The slider circuit board is electrically connected to the voltage converter (6) via a connecting line. The receiver of the slider circuit board is wirelessly connected to the transmitter in the slider remote controller. The slider circuit board is electrically connected to the first motor and the second motor via connecting lines. The first motor is mounted on the lower slider and drives the lower slider to move left and right on the lower track. The second motor is mounted on the upper slider and drives the upper slider to move on the upper track.

6. The unmanned millimeter-wave radar training device according to claim 1, characterized in that: The model assembly also includes a wheel module, which includes a fixing plate, a motor plate, a bearing seat, and a simulated motor. The fixing plate is fixed to the base with fasteners, the motor plate is fixed to the fixing plate, the simulated motor is mounted on one side of the motor plate, the bearing seat is fixed to the fixing plate, and the simulated motor is mounted on the bearing seat. There are two bearing seats, which are located on the left and right sides of the wheel speed sensor, respectively.

7. The unmanned millimeter-wave radar training device according to claim 1, characterized in that: The base includes a seat body (15) and a seat plate (16), the seat plate (16) being mounted above the seat body (15), and lane lines being printed on the seat plate (16).

8. The unmanned millimeter-wave radar training device according to claim 7, characterized in that: The base also includes four casters, which are fixed at the four corners of the lower end of the base (15).

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