Vehicle-mounted screen testing device

Abstract

The invention relates to the technical field of vehicle-mounted screen testing, in particular to a vehicle-mounted screen testing device. The vehicle-mounted screen testing device comprises an operation platform, a mechanical arm and a main body permanent magnet. A main body permanent magnet is arranged on the operation platform; the mechanical arm comprises a main body bracket, a vertical bracket, a touch head and a main body electromagnet; a main body electromagnet matched with the main body permanent magnet is arranged on the main body support, and the mechanical arm can move below the operation platform through magnetic force. The vertical support is connected to the lower portion of the body support and extends in the vertical direction, and the touch head is connected with the vertical support so as to move along the vertical support. According to the vehicle-mounted screen testing device, the technical problems that a traditional screen testing device is few in testing function and large in occupied space are solved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted screen testing, and in particular to a vehicle-mounted screen testing device. Background Art

[0002] In the process of vehicle screen development and production, in order to verify whether the product meets the design expectations, the screen needs to be tested by driving the operating arm to simulate the user's click on the screen. Then the camera captures the picture after the click, and by comparing the captured picture with the expected picture, and collecting CAN, LIN signals, etc., it is verified whether the controller behavior after the click meets the expectations. At present, traditional screen testing equipment can be roughly divided into the following two solutions.

[0003] Solution 1: A pneumatic robotic arm is fixed above the key that needs to be tested for touch. When the key effect needs to be tested, the computer is controlled to drive the air pump to operate, and at the same time, the pneumatic valve for the downward movement of the robotic arm above the corresponding key is opened. The gas enters the robotic arm at the corresponding position through the valve, driving the robotic arm to move downward, thereby simulating the finger pressing operation. After the test is completed, the pneumatic valve for upward movement is opened, and the robotic arm is retracted to the initial position. After the simulation is completed, according to the design verification requirements of the test equipment, the corresponding signal acquisition equipment is connected to the computer to determine whether the signal meets the design requirements.

[0004] Solution 2: Use three motors to drive three sets of ball screws to form a three-axis motion system. The X and Y axes are responsible for driving the horizontal movement of the robot arm, and the Z axis is responsible for the vertical movement of the robot arm. When the key effect needs to be tested, the control computer calculates the position coordinates, drives the X and Y axes to move, moves the robot arm to the top of the key to be tested, and then drives the Z axis to move the robot arm downward to simulate the finger pressing operation. After the test is completed, the motor pneumatically drives the X, Y, and Z axes to return to their initial positions. After the simulation is completed, according to the design verification requirements of the test equipment, the corresponding signal acquisition equipment is connected to the computer to determine whether the signal meets the design requirements.

[0005] However, in the prior art, Solution 1 has the following disadvantages:

[0006] Since the cylinder has no horizontal driving capability and can only move up and down at a fixed position, the simulated button test can only be performed at a pre-set position. When testing different products, the button positions are different, and the cylinder position can only be manually changed to adapt to different products. This is time-consuming and labor-intensive, and cannot meet the needs of rapid testing of multiple products. At the same time, since the equipment cannot move freely in the horizontal direction, when testing products such as the vehicle-mounted central control screen, it is impossible to test functions such as sliding and dragging. Only simple spot inspection tests can be performed, and all functions of the product cannot be tested.

[0007] Solution 2 has the following disadvantages:

[0008] Although ball screws can be used for horizontal movement, the motor plus ball screw structure itself occupies a large area, and multiple sets of screws are prone to mutual interference. At the same time, as a precision machine, ball screws require frequent maintenance and calibration, and have strict requirements on the use environment. Summary of the invention

[0009] The purpose of this application is to provide a vehicle-mounted screen testing device, thereby solving the above technical problems existing in traditional screen testing equipment.

[0010] According to the present application, a vehicle-mounted screen testing device is provided, which includes a running platform, a mechanical arm and a main body permanent magnet; the main body permanent magnet is arranged on the running platform; the mechanical arm includes a main body bracket, a vertical bracket, a touch head and a main body electromagnet; the main body bracket is provided with a main body electromagnet that cooperates with the main body permanent magnet, and the mechanical arm can move under the running platform through magnetic force; the vertical bracket is connected to the bottom of the main body bracket, the vertical bracket extends in the vertical direction, and the touch head is connected to the vertical bracket to move along the vertical bracket.

[0011] In any of the above technical solutions, further, the robotic arm also includes a vertical permanent magnet and a vertical electromagnet that cooperate with each other; a vertical guide groove extending vertically is arranged inside the vertical bracket, and the vertical electromagnet, the vertical permanent magnet and the touch head are all arranged in the vertical guide groove, the vertical electromagnet is fixed to the vertical guide groove, and the vertical permanent magnet and the touch head are connected in sequence below the vertical electromagnet, and the touch head can move along the vertical guide groove.

[0012] In any of the above technical solutions, further, the robotic arm also includes a horizontal bracket, a horizontal electromagnet, a horizontal guide rod and a horizontal permanent magnet cooperating with the horizontal electromagnet; the horizontal bracket is fixed below the main bracket, and a horizontal guide groove extending horizontally is provided inside the horizontal bracket; the horizontal electromagnet, the horizontal guide rod and the horizontal permanent magnet are all arranged in the horizontal guide groove, and the horizontal permanent magnet is sleeved on the horizontal guide rod to move along the horizontal guide rod; the horizontal electromagnet and the horizontal guide rod are both fixed to the horizontal guide groove, and one end of the horizontal electromagnet is connected to the horizontal guide rod; an opening connected to the horizontal guide groove is provided below the horizontal bracket, and the opening is provided for the vertical bracket to move, and the vertical bracket is fixed below the horizontal permanent magnet.

[0013] In any of the above technical solutions, further, the robotic arm also includes a horizontal damping spring and a vertical damping spring; the horizontal damping spring is sleeved on the horizontal guide rod, and the two ends of the horizontal damping spring sleeve are respectively fixedly connected to the horizontal electromagnet and the horizontal permanent magnet; the vertical damping spring is arranged in the vertical guide groove, and the two ends of the vertical damping spring are respectively fixedly connected to the vertical electromagnet and the vertical permanent magnet.

[0014] In any of the above technical solutions, further, the vehicle-mounted screen testing device also includes a dust cover; the dust cover is connected to the bottom ends of the horizontal bracket and the vertical bracket to wrap the vertical bracket, and the part of the touch head exposed outside the vertical guide groove is also exposed outside the dust cover.

[0015] In any of the above technical solutions, further, the vehicle-mounted screen testing device also includes a test terminal, a central gateway and a camera; the camera and the test terminal are both communicatively connected to the central gateway, and the central gateway includes a plurality of signal interfaces; the data signals received by the plurality of signal interfaces and the video signals collected by the camera can be uniformly transmitted by the central gateway to the test terminal.

[0016] In any of the above technical solutions, further, the vehicle-mounted screen testing device also includes a wireless network receiving module and a robotic arm main control chip arranged in the robotic arm; the test terminal can send instructions to the wireless network receiving module through the central gateway according to the expected position of the robotic arm, and after the wireless network receiving module receives the instructions, it sends the instructions to the robotic arm main control chip, and the robotic arm main control chip controls the main electromagnet to drive the main permanent magnet according to the instructions, controls the vertical electromagnet to drive the vertical permanent magnet according to the instructions, and controls the horizontal electromagnet to drive the horizontal permanent magnet according to the instructions.

[0017] In any of the above technical solutions, further, the vehicle-mounted screen testing device also includes a wireless charging transmitting coil and a wireless charging receiving coil; the wireless charging transmitting coil is arranged on the operating platform, and the wireless charging receiving coil is arranged in the robotic arm; the wireless charging transmitting coil can charge the wireless charging receiving coil, and the wireless charging receiving coil can power the wireless network receiving module, the robotic arm main control chip, the main electromagnet, the vertical electromagnet and the horizontal electromagnet.

[0018] In any of the above technical solutions, further, there are multiple robotic arms, and all of the multiple robotic arms can move under the operating platform through magnetic force.

[0019] In any of the above technical solutions, further, the vehicle-mounted screen testing device also includes a screen fixing platform and a fixing fixture; the screen fixing platform is arranged below the running platform, and a fixing fixture is fixedly connected above the screen fixing platform, and the fixing fixture is used to clamp and fix the vehicle-mounted screen to be tested.

[0020] The vehicle screen test device of the present application includes a running platform, a mechanical arm and a main body permanent magnet. Among them, the main body permanent magnet is arranged on the running platform. The mechanical arm includes a main body bracket, a vertical bracket, a touch head and a main body electromagnet. The main body bracket is provided with a main body electromagnet that cooperates with the main body permanent magnet, and the mechanical arm can move under the running platform through magnetic force; the vertical bracket is connected to the bottom of the main body bracket, the vertical bracket extends in the vertical direction, and the touch head is connected to the vertical bracket to move along the vertical bracket.

[0021] According to the above technical features, the beneficial effects of this application are:

[0022] The operating platform of the present application is provided with a main permanent magnet, and the main body bracket of the mechanical arm is provided with a main body electromagnet. According to the expected movement direction of the mechanical arm and the relative position of the magnetic poles on the mechanical arm and the operating platform, the main body electromagnet is manipulated to alternately change the direction of the magnetic poles, so that the mechanical arm can be driven to move in the expected direction, and the mechanical arm is always in contact with the operating platform due to the effect of magnetic attraction. When testing the vehicle screen, after the mechanical arm moves horizontally to the specified position under the operating platform, the touch head moves along the vertical bracket to click on the vehicle screen to simulate the finger touching the screen. Alternatively, when the touch head contacts the vehicle screen, the touch head then moves horizontally under the operating platform to simulate finger sliding, dragging and other functions.

[0023] In summary, the vehicle-mounted screen test device of the present application is driven by an electromagnet and can move freely in the horizontal direction, which solves the drawback of the prior art (Solution 1) that only fixed positions can be tested, and the vehicle-mounted screen test device of the present application can also test sliding, dragging and other functions. In addition, compared with the prior art (Solution 2), the vehicle-mounted screen test device of the present application occupies a smaller structure and does not require the trouble of maintenance.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram showing the overall structure of a vehicle-mounted screen testing device according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram showing the installation of the main permanent magnet and the main electromagnet of the embodiment of the present application is shown;

[0028] Figure 3 A schematic cross-sectional structure diagram of a mechanical arm according to an embodiment of the present application is shown;

[0029] Figure 4 A schematic diagram showing a vehicle-mounted screen testing device according to an embodiment of the present application.

[0030] Icons: 100-operating platform; 200-main body permanent magnet; 300-mechanical arm; 301-main body electromagnet; 302-main body bracket; 303-vertical bracket; 304-touch head; 305-vertical permanent magnet; 306-vertical electromagnet; 307-vertical damping spring; 308-horizontal bracket; 309-horizontal electromagnet; 310-horizontal guide rod; 311-horizontal permanent magnet; 312-horizontal damping spring; 313-dust cover; 410-test terminal; 420-central gateway; 430-camera; 500-wireless network receiving module; 600-mechanical arm main control chip; 710-wireless charging transmitting coil; 720-wireless charging receiving coil and battery integrated module; 800-vehicle screen; 910-screen fixing platform; 920-fixing fixture. DETAILED DESCRIPTION

[0031] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0032] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0033] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0034] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0035] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0036] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0037] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0038] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0039] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0040] The present application provides a vehicle-mounted screen testing device, thereby solving the technical problems existing in traditional screen testing equipment (Solution 1 and Solution 2 in the background technology).

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the vehicle-mounted screen testing device of the present application includes a running platform 100, a mechanical arm 300 and a main body permanent magnet 200. Among them, the running platform 100 is provided with a main body permanent magnet 200. The mechanical arm 300 includes a main body bracket 302, a vertical bracket 303, a touch head 304 and a main body electromagnet 301. The main body bracket 302 is provided with a main body electromagnet 301 that cooperates with the main body permanent magnet 200, and the mechanical arm 300 can move under the running platform 100 through magnetic force; the vertical bracket 303 is connected to the bottom of the main body bracket 302, and the vertical bracket 303 extends in the vertical direction, and the touch head 304 is connected to the vertical bracket 303 to move along the vertical bracket 303.

[0042] That is to say, the operating platform 100 of the present application is provided with a main permanent magnet 200, and the main bracket 302 of the mechanical arm 300 is provided with a main electromagnet 301. According to the expected movement direction of the mechanical arm 300, combined with the relative position of the magnetic poles on the mechanical arm 300 and the operating platform 100, the main electromagnet 301 is manipulated to alternately change the direction of the magnetic poles, so that the mechanical arm 300 can be driven to move in the expected direction, and the mechanical arm 300 is always attached to the operating platform 100 due to the effect of magnetic attraction. When testing the vehicle screen, after the mechanical arm 300 moves horizontally to the specified position below the operating platform 100, the touch head 304 moves along the vertical bracket 303 to click on the vehicle screen to simulate the finger touching the screen. Alternatively, when the touch head 304 contacts the vehicle screen, the touch head 304 then moves horizontally below the operating platform 100 to simulate finger sliding, dragging and other functions.

[0043] As described above, the vehicle-mounted screen test device of the present application is driven by an electromagnet and can move freely in the horizontal direction, which solves the drawback of the prior art (Solution 1) that only fixed positions can be tested, and the vehicle-mounted screen test device of the present application can also test sliding, dragging and other functions. In addition, compared with the prior art (Solution 2), the vehicle-mounted screen test device of the present application occupies a smaller structure and does not require the trouble of maintenance.

[0044] Refer to the following Figures 1 to 4 The vehicle-mounted screen testing device described in some embodiments of the present application is described in detail.

[0045] like Figure 2 As shown, the lower surface of the running platform 100 is covered with spaced main permanent magnets 200, and the main electromagnet 301 is installed above the main support 302 of the mechanical arm 300. Similar to the moving coil planar motor, the electric control mechanism controls the main electromagnet 301 to alternately change the direction of the magnetic pole according to the expected movement direction of the mechanical arm 300 and the relative position of the magnetic poles on the current mechanical arm 300 and the running platform 100. In this way, the mechanical arm 300 can be driven to move in the expected direction, and the mechanical arm 300 is always attached to the running platform 100 due to the effect of magnetic attraction. Unlike the moving coil planar motor, the mover of the traditional moving coil planar motor is above the permanent magnet to resist the load in the vertical direction. The present application is to install the mover below the permanent magnet. Since the mechanical arm 300 of the present application is only to simulate the finger touching the screen, its longitudinal load is very small, which is only the gravity of the mechanical arm 300 itself, so it can always achieve the mover adsorbed on the surface of the permanent magnet.

[0046] like Figure 1 and Figure 3 As shown, a main electromagnet 301 ( Figure 3The main electromagnet 301 is not shown, the main bracket 302 can be in a "cross" shape, and the two rods of the "cross" shaped main bracket 302 are both provided with the main electromagnet 301, and the two rods are respectively responsible for the front and rear movement and the left and right movement in the horizontal direction.

[0047] The above structure is responsible for the horizontal movement of the robot arm 300, and the up and down movement of the robot arm 300 is completed by the robot arm 300 itself. The internal structure of the robot arm 300 is as follows: Figure 3 shown.

[0048] In the embodiments of the present application, Figure 3 As shown, the mechanical arm 300 also includes a vertical permanent magnet 305 and a vertical electromagnet 306 that cooperate with each other. A vertical guide groove extending vertically is arranged inside the vertical bracket 303, and the vertical electromagnet 306, the vertical permanent magnet 305 and the touch head 304 are all arranged in the vertical guide groove. The vertical electromagnet 306 is fixed to the vertical guide groove, and the vertical permanent magnet 305 and the touch head 304 are connected to the bottom of the vertical electromagnet 306 in sequence. The cooperation of the vertical permanent magnet 305 and the vertical electromagnet 306 enables the touch head 304 to move along the vertical guide groove.

[0049] Further, in the embodiment of the present application, the robot arm 300 may also include a vertical damping spring 307, which is disposed in the vertical guide groove, and the two ends of the vertical damping spring 307 are respectively fixedly connected to the vertical electromagnet 306 and the vertical permanent magnet 305. The provision of the vertical damping spring 307 can prevent the vertical permanent magnet 305 from directly contacting the vertical electromagnet 306, and can effectively ensure the accuracy and stability of the movement of the vertical permanent magnet 305.

[0050] In this way, when the robotic arm 300 moves to the corresponding position above the screen to be tested, the electric control mechanism controls the magnetic force of the vertical electromagnet 306, and cooperates with the vertical damping spring 307 to make the vertical permanent magnet move up and down along the vertical guide groove, and finally drives the touch head 304 to touch the corresponding position of the screen to simulate the operation of the user clicking the touch screen.

[0051] It is also worth mentioning that, due to the large spacing between the magnetic poles of the operating platform 100, high-precision control cannot be achieved in the horizontal direction of the robot arm 300. Therefore, the present application can also further perform horizontal control on the robot arm 300.

[0052] Specifically, Figure 3As shown, the mechanical arm 300 also includes a horizontal bracket 308, a horizontal electromagnet 309, a horizontal guide rod 310, a horizontal permanent magnet 311 matched with the horizontal electromagnet 309, and a horizontal damping spring 312. The horizontal bracket 308 is fixed below the main bracket 302, and a horizontal guide groove extending horizontally is provided inside the horizontal bracket 308; the horizontal electromagnet 309, the horizontal guide rod 310, and the horizontal permanent magnet 311 are all arranged in the horizontal guide groove, and the horizontal permanent magnet 311 is sleeved on the horizontal guide rod 310 to move along the horizontal guide rod 310; the horizontal electromagnet 309 and the horizontal guide rod 310 are both fixed in the horizontal guide groove, and one end of the horizontal electromagnet 309 is fixedly connected to the horizontal guide rod 310; the horizontal damping spring 312 is sleeved on the horizontal guide rod 310, and the two ends of the sleeve of the horizontal damping spring 312 are respectively fixedly connected to the horizontal electromagnet 309 and the horizontal permanent magnet 311.

[0053] In addition, in the embodiments of the present application, Figure 3 As shown, an opening connected to the horizontal guide groove is provided below the horizontal bracket 308 , and the opening is used for the vertical bracket 303 to move. The vertical bracket 303 is fixed below the horizontal permanent magnet 311 .

[0054] In this way, when the mechanical arm 300 moves to the top of the corresponding position, the electric control mechanism changes the magnetic force of the horizontal electromagnet 309, and controls the horizontal permanent magnet to move along the horizontal guide rod 310 by cooperating with the elastic force of the horizontal damping spring 312, so as to achieve precise control in the horizontal direction. In addition, the setting of the horizontal damping spring 312 can prevent the horizontal permanent magnet 311 from directly contacting the horizontal electromagnet 309, and can effectively ensure the precision and stability of the movement of the horizontal permanent magnet 311. When the mechanical arm 300 moves to the top of the corresponding position of the screen to be tested, the electric control mechanism controls the magnetic force of the vertical electromagnet 306, and cooperates with the vertical damping spring 307, so that the vertical permanent magnet moves up and down along the vertical guide groove, and finally drives the touch head 304 to touch the corresponding position of the screen to simulate the operation of the user clicking the touch screen.

[0055] Optionally, in an embodiment of the present application, Figure 3 As shown, the vehicle-mounted screen test device also includes a rubber dust cover 313. The upper part of the dust cover 313 is connected to the opening of the horizontal bracket 308, and the lower part is connected to the bottom end of the vertical bracket 303. The dust cover 313 can wrap the vertical bracket 303 and the structure in the horizontal guide groove to prevent the structure from being affected by the external environment. Among them, the part of the touch head 304 exposed outside the vertical guide groove is also exposed outside the dust cover 313, so that the operation of clicking the touch screen can be performed normally.

[0056] In summary, the vehicle-mounted screen testing device of the present application is driven by an electromagnet, can move freely in the horizontal direction, and the internal magnetic force of the robotic arm is fine-tuned, which solves the disadvantage of the prior art (Solution 1) that only fixed positions can be tested. At the same time, the vehicle-mounted screen testing device of the present application can also test sliding, dragging and other functions.

[0057] In addition, compared with the prior art (Scheme 2), the structure of the vehicle-mounted screen testing device of the present application occupies a smaller area, and can also achieve the same positioning accuracy as the ball screw structure of the prior scheme 2, while also avoiding the trouble of ball screw maintenance. On this basis, because of the small footprint, in the embodiment of the present application, the number of mechanical arms 300 can be set to multiple, and multiple mechanical arms 300 can all be moved under the operating platform 100 through magnetic force. In other words, with the magnetic drive of the magnetic drive platform, multiple groups of mechanical arms 300 can share one operating platform 100, and can be expanded arbitrarily without the problem of mutual interference.

[0058] The signal acquisition and electronic control mechanism of the vehicle screen test device of the present application is as follows Figure 4 In the embodiments of the present application, Figure 4 As shown, the vehicle screen test device also includes a test terminal 410 (test computer), a central gateway 420 and a camera 430. Among them, the camera 430 and the test terminal 410 are both connected to the central gateway 420 for communication. The central gateway 420 includes multiple signal interfaces, and the data signals received by the multiple signal interfaces and the video signals collected by the camera 430 can be uniformly transmitted by the central gateway 420 to the test terminal 410.

[0059] That is to say, the vehicle screen test device is uniformly controlled by the test terminal 410, which is the carrier of the test software and is used to drive various components and determine whether the collected signals meet expectations. The test terminal 410 is connected to the central gateway 420 via a USB harness. The central gateway 420 is the signal hub of the entire device. On the one hand, it controls all actuators through WIFI signals, and on the other hand, it collects all signal interfaces (signal interfaces include CAN, LIN, ETH) and video signals in a unified manner so that the test software can make result judgments.

[0060] In the existing schemes 1 and 2, signal acquisition is basically customized according to the test product, that is, the corresponding signal acquisition equipment is added in the test process according to the signal of the product. When changing to different types of products, both the test equipment structure and the test software need to be changed to a certain extent, which is troublesome.

[0061] The central gateway 420 of the present application sends and receives signals uniformly, which is different from the test computers in the existing schemes 1 and 2 that directly connect various signals. The various test signals of the present application are uniformly collected and sent by the central gateway 420. The test software only needs to judge the signal sent by the gateway. According to the test software, no matter how many CAN, LIN, ETH or video signals are added, the test software does not need to be changed. It only needs to change the signal interface corresponding to the central gateway 420. In this way, the present application can complete the test for different types of screen products without modifying the equipment.

[0062] After driving the mechanical arm 300 to simulate the touch screen, the output signal can be collected through the signal collection interface of the vehicle-mounted screen to see if it meets the design expectations. In addition, the signal interface of the central gateway 420 reserves three signal channels: CAN, LIN, and ETH, covering all signal types in the vehicle-mounted field. During testing, it can be flexibly selected according to the signal type contained in the test product. After collection, it is transmitted to the central gateway 420, which will be sent to the test terminal 410 for judgment to test the simulated touch port and whether the display screen controller to be tested meets the design expectations. At the same time, the camera 430 collects video signals in real time and transmits them to the central gateway 420, which will be transmitted to the test terminal 410 by the central gateway 420 for image comparison to determine whether the displayed picture meets expectations.

[0063] In the embodiments of the present application, Figure 4 As shown, the vehicle screen test device of the present application also includes a wireless network receiving module 500, a mechanical arm main control chip 600, a wireless charging transmitting coil 710, and a wireless charging receiving coil and battery integrated module 720. Among them, the wireless charging transmitting coil 710 is arranged in the operating platform 100, and the wireless charging receiving coil and battery integrated module 720 is arranged in the mechanical arm 300; the wireless charging transmitting coil 710 can charge the wireless charging receiving coil and battery integrated module 720, and the wireless charging receiving coil and battery integrated module 720 can supply power to the wireless network receiving module 500, the mechanical arm main control chip 600, the main electromagnet 301, the vertical electromagnet 306 and the horizontal electromagnet 309.

[0064] In this way, the power supply of the robot arm 300 of the present application is carried out by wireless charging, which reduces the wire harness inside the device and also avoids the interference of too many wire harnesses on the robot arm 300. At the same time, multiple sets of robot arms 300 can use a set of charging transmission coils at the same time, which further improves the advantage that the device can arbitrarily expand the number of robot arms 300.

[0065] In the embodiments of the present application, Figure 4As shown, the wireless network receiving module 500 and the robot arm main control chip 600 are arranged in the robot arm 300. Among them, the test terminal 410 can send instructions to the wireless network receiving module 500 through the central gateway 420 according to the expected position of the robot arm 300. After receiving the instructions, the wireless network receiving module 500 sends the instructions to the robot arm main control chip 600. The robot arm main control chip 600 controls the main electromagnet 301 to drive the main permanent magnet 200 according to the instructions, controls the vertical electromagnet 306 to drive the vertical permanent magnet 305 according to the instructions, and controls the horizontal electromagnet 309 to drive the horizontal permanent magnet 311 according to the instructions.

[0066] During the specific test, the wireless charging transmitting coil 710 installed in the operation platform 100 starts wireless charging first, so that the wireless charging receiving coil and the battery integrated module 720 installed in the mechanical arm 300 will start charging, and at the same time provide power for the subsequent movement and signal transmission and reception of the mechanical arm 300. After the mechanical arm 300 is powered on, the test terminal 410 will send a WIFI control signal through the central gateway 420 according to the expected position of the mechanical arm 300 required. At this time, the wireless network receiving module 500 (WIFI receiving module) in the mechanical arm 300 receives the instruction and sends the signal to the mechanical arm main control chip 600, and the mechanical arm main control chip 600 drives the main electromagnet 301 to complete the horizontal movement of the mechanical arm 300. At the same time, the mechanical arm main control chip 600 will also drive the horizontal electromagnet 309 and the vertical electromagnet 306 at the same time according to the instruction to complete the horizontal fine adjustment and up and down movement of the touch head 304, so as to complete the operation of driving the mechanical arm 300 to simulate the user touching the screen.

[0067] In summary, this solution uses WIFI signals to drive the mechanical arms 300, and cooperates with the magnetic drive of the magnetic operation platform 100. Multiple groups of mechanical arms 300 can share one operation platform 100 without interference, making the expansion of the mechanical arms 300 more convenient. If you want to increase the number of mechanical arms 300, you only need to increase the corresponding WIFI signals. You can flexibly match one or more groups of mechanical arms 300 according to the actual needs of the project, which is impossible to achieve with the ball screw structure of the existing solution 2.

[0068] Finally, in the embodiments of the present application, Figure 1 As shown, the vehicle screen test device of the present application further includes a screen fixing platform 910 and a fixing fixture 920. The screen fixing platform 910 is arranged below the running platform 100, and a fixing fixture 920 is fixedly connected above the screen fixing platform 910, and the fixing fixture 920 is used to clamp and fix the vehicle screen 800 to be tested.

[0069] During the specific test, the screen fixing platform 910 is the base of the whole device, and the vehicle screen 800 to be tested is fixed by the fixing fixture 920 installed thereon. Then, the mechanical arm 300 is controlled by the electric control mechanism to move on the operation platform 100, simulating the user to click on the vehicle screen 800, and then the response CAN, LIN, Ethernet signals are collected, and by judging whether the corresponding signals meet the expectations, it is judged whether the tested vehicle screen 800 meets the design requirements.

[0070] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A vehicle screen testing device, characterized in that: The vehicle-mounted screen testing device comprises a running platform, a mechanical arm and a main body permanent magnet; The main body permanent magnet is arranged on the running platform; The mechanical arm includes a main support, a vertical support, a touch head and a main electromagnet; The main body bracket is provided with a main body electromagnet that cooperates with the main body permanent magnet, and the mechanical arm can move under the operating platform through magnetic force; The vertical support is connected below the main support, the vertical support extends vertically, and the touch head is connected to the vertical support to move along the vertical support.

2. The vehicle-mounted screen testing device according to claim 1, characterized in that: The mechanical arm also includes a vertical permanent magnet and a vertical electromagnet that cooperate with each other; A vertical guide groove extending vertically is arranged inside the vertical bracket, the vertical electromagnet, the vertical permanent magnet and the touch head are all arranged in the vertical guide groove, the vertical electromagnet is fixed to the vertical guide groove, and the vertical permanent magnet and the touch head are connected in sequence below the vertical electromagnet, and the touch head can move along the vertical guide groove.

3. The vehicle-mounted screen testing device according to claim 2, characterized in that: The mechanical arm also includes a horizontal support, a horizontal electromagnet, a horizontal guide rod and a horizontal permanent magnet matched with the horizontal electromagnet; The horizontal bracket is fixed below the main bracket, and a horizontal guide groove extending horizontally is provided inside the horizontal bracket; the horizontal electromagnet, the horizontal guide rod and the horizontal permanent magnet are all arranged in the horizontal guide groove, and the horizontal permanent magnet is sleeved on the horizontal guide rod to move along the horizontal guide rod; the horizontal electromagnet and the horizontal guide rod are both fixed to the horizontal guide groove, and one end of the horizontal electromagnet is connected to the horizontal guide rod; An opening connected to the horizontal guide groove is provided below the horizontal support, and the opening is used for the vertical support to move. The vertical support is fixed below the horizontal permanent magnet.

4. The vehicle-mounted screen testing device according to claim 3, characterized in that: The mechanical arm also includes a horizontal damping spring and a vertical damping spring; The horizontal damping spring sleeve is arranged on the horizontal guide rod, and the two ends of the horizontal damping spring sleeve are respectively fixedly connected to the horizontal electromagnet and the horizontal permanent magnet; The vertical damping spring is arranged in the vertical guide groove, and two ends of the vertical damping spring are fixedly connected to the vertical electromagnet and the vertical permanent magnet respectively.

5. The vehicle-mounted screen testing device according to claim 3, characterized in that: The vehicle-mounted screen testing device also includes a dust cover; The dust cover is connected to the bottom ends of the horizontal bracket and the vertical bracket to wrap the vertical bracket, and the portion of the touch head exposed outside the vertical guide groove is also exposed outside the dust cover.

6. The vehicle-mounted screen testing device according to claim 3, characterized in that: The vehicle-mounted screen testing device also includes a testing terminal, a central gateway and a camera; The camera and the test terminal are both in communication connection with the central gateway, and the central gateway includes a variety of signal interfaces; The data signals received by the multiple signal interfaces and the video signals collected by the cameras can be uniformly transmitted by the central gateway to the test terminal.

7. The vehicle-mounted screen testing device according to claim 6, characterized in that: The vehicle-mounted screen testing device also includes a wireless network receiving module and a mechanical arm main control chip arranged in the mechanical arm; The test terminal can send instructions to the wireless network receiving module through the central gateway according to the expected position of the robotic arm. After receiving the instructions, the wireless network receiving module sends the instructions to the robotic arm main control chip. The robotic arm main control chip controls the main electromagnet to drive the main permanent magnet according to the instructions, controls the vertical electromagnet to drive the vertical permanent magnet according to the instructions, and controls the horizontal electromagnet to drive the horizontal permanent magnet according to the instructions.

8. The vehicle-mounted screen testing device according to claim 7, characterized in that: The vehicle-mounted screen testing device also includes a wireless charging transmitting coil and a wireless charging receiving coil; The wireless charging transmitting coil is arranged in the operating platform, and the wireless charging receiving coil is arranged in the mechanical arm; The wireless charging transmitting coil can charge the wireless charging receiving coil, and the wireless charging receiving coil can supply power to the wireless network receiving module, the robotic arm main control chip, the main electromagnet, the vertical electromagnet and the horizontal electromagnet.

9. The vehicle-mounted screen testing device according to any one of claims 1 to 8, characterized in that: There are multiple robotic arms, and all of the multiple robotic arms can move under the operating platform through magnetic force.

10. The vehicle-mounted screen testing device according to any one of claims 1 to 8, characterized in that: The vehicle-mounted screen testing device also includes a screen fixing platform and a fixing fixture; The screen fixing platform is arranged below the running platform, and a fixing fixture is fixedly connected above the screen fixing platform, and the fixing fixture is used to clamp and fix the vehicle-mounted screen to be tested.

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