Testing device

Abstract

The utility model discloses a testing device, which comprises a central processor, at least one Ethernet chip and a plurality of CAN chips, one end of each CAN chip is used for being connected with an external test sample piece to receive signals of the external test sample piece, and the other end of each CAN chip is connected with the corresponding Ethernet chip; and the display is connected with the Ethernet chip and is used for displaying the performance state of the external test sample piece. According to the utility model, a CANoe collector is cancelled, the external test sample piece is directly tested through the CAN chip and the Ethernet chip of the central processor, the volume of the test device is reduced, and the connection mode of the test sample piece and the test device is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the test field especially relates to a test device. BACKGROUND

[0002] In the current automotive electronics field, most of the automotive electronic modules have the function of supporting CAN (Controller Area Network) communication, and the mainstream test devices on the market also mostly use CAN communication mode. However, in the reliability test experiment of various automotive electronic modules, a test sample needs to be able to support the connection of multiple products. For example, a test sample needs to be connected to a CANoe (CAN open environment) collector and a display in turn. Taking a radar as an example, the CANoe collector is used to collect the distance, speed and angle signals of the radar. This complex connection method makes the final test device increase dramatically in size and weight. At the same time, the debugging process becomes difficult due to the complex connection and large size. These adverse factors ultimately lead to a significant extension of the verification period of new products.

[0003] Moreover, when the test personnel need to complete one experiment on the test sample and then perform another experiment, due to the complexity of the test device connection, they have to frequently plug and unplug the wire harness interface. Repeated plugging and unplugging operations can easily cause wear and tear of the wire harness interface, and further cause poor contact problems. In the long-term reliability test process, poor contact can cause signal transmission interruption or instability, which adversely affects the accuracy and reliability of the test results, making it difficult to smoothly proceed with the reliability test and unable to provide strong support for the quality evaluation of automotive electronic modules.

[0004] In addition, the existing CANoe collector also has obvious shortcomings in performance. Its signal transmission rate is low, and the transmission capacity is limited, which is difficult to meet the growing data processing demand. With the rapid development of the automotive industry, the CAN communication rate of automotive electronic modules is becoming higher and higher, and the functions are becoming more and more complex and diverse. This requires that during the test process, the test equipment must be able to accurately collect signals and accurately process them. However, due to the performance limitations of the CANoe collector, the existing CAN communication test device is difficult to ensure the integrity of the collected signals and the accuracy of the processed signals when facing automotive electronic modules with high communication rates, which undoubtedly brings challenges to the test work of automotive electronic modules. SUMMARY

[0005] The utility model discloses a test device, cancel CANoe collector, and the test of the test sample of outside is carried out directly through the CAN chip and the ethernet chip of central processing unit, and the volume of test device is reduced, and the connecting mode of test sample and test device is simplified.

[0006] To solve the above technical problems, the embodiment of the utility model discloses a test device, the test device includes:

[0007] Central processing unit, the central processing unit includes at least one ethernet chip and a plurality of CAN chips, and one end of each CAN chip is used to be connected with the test sample of outside to receive the signal of the test sample of outside, and the other end of each CAN chip is connected with the corresponding ethernet chip thereof;

[0008] Display, the display is connected with the ethernet chip, and the display is used to show the performance state of the test sample of outside.

[0009] The use process of the test device is that a plurality of CAN chips receive signals from the test sample of outside, and the test sample of automobile electronic module is various, wherein the test sample of outside is radar, and each radar outputs distance, speed and angle signals to the corresponding CAN chip.

[0010] The ethernet chip integrates and packs radar signals from a plurality of CAN chips to generate data packets. Since the ethernet itself has the advantages of high bandwidth, high speed and long distance transmission, it can cope with multiple CAN communication products. These data packets processed by the ethernet chip can be efficiently transmitted in the system, ensuring the integrity of signal acquisition and the accuracy of signal processing. Finally, the information carried by these data packets (such as distance, speed and angle) is displayed in the form of intuitive images on the display, and the tester can obtain relevant data and understand the performance state of the test sample in time, providing support for subsequent analysis and judgment.

[0011] By using the technical scheme, the CANoe collector relied on in the traditional test scheme is cancelled, and instead, the test of the test sample of outside is carried out directly by means of the CAN chip and the ethernet chip in the central processing unit. Not only the overall volume of the test device is reduced, making the test device more compact and portable, but also the connecting mode between the test sample and the test device is simplified, reducing the complexity and error probability in the connecting process.

[0012] In addition, from the perspective of cost control, the CANoe collector used in the traditional test scheme has high procurement cost, and the price of each one is as high as hundreds of thousands of yuan. The technical scheme cancels the CANoe collector, reduces the test cost, saves the fund investment of enterprises in the test link, and improves the performance cost ratio and economic benefit of the test work.

[0013] According to another specific embodiment of the utility model, the test device includes a wire harness adapter, one end of the wire harness adapter is used for connecting with the test sample in the external environment through a wire harness, and the other end of the wire harness adapter is connected with the plurality of CAN chips through a wire harness.

[0014] According to another specific embodiment of the utility model, the wire harness adapter includes a first part and a second part which are detachably connected, the first part includes a plurality of first wire harness interfaces, each first wire harness interface is used for connecting with the test sample in the external environment through a wire harness, and the second part includes a plurality of second wire harness interfaces, each second wire harness interface is connected with the CAN chip through a wire harness.

[0015] When the test personnel need to complete another experiment after one experiment on the test sample, the test personnel only need to detach the wire harness adapter and separate it into the first part and the second part. The second part still remains in the original place and is connected with the CAN chip. This arrangement ensures the stability of the CAN chip related line, and the first part can follow the test sample to the next experiment site.

[0016] This operation mode can reduce the behavior of repeatedly unplugging and plugging the wire harness, reduce the probability of poor contact, and therefore, the signal can be transmitted in a stable line environment, ensuring the stability of signal transmission. Stable signal transmission is the basis for obtaining accurate test results, which makes the data collected in the test process more real and reliable, and further improves the accuracy and reliability of the test results.

[0017] According to another specific embodiment of the utility model, the display is connected with the Ethernet chip through a wire harness.

[0018] According to another specific embodiment of the utility model, the test device includes a power supply, and the central processing unit is connected with the power supply through a wire harness.

[0019] According to another specific embodiment of the utility model, the test device includes an Ethernet adapter box, one end of the Ethernet adapter box is connected with the display, and the other end of the Ethernet adapter box is connected with the Ethernet chip.

[0020] According to the technical scheme, since the automobile Ethernet and the computer Ethernet are different in data transmission requirements, network topology structure, protocol and standard, etc., the Ethernet adapter box is arranged to convert and adapt signals, protocols and interfaces according to different characteristics of the automobile Ethernet and the computer Ethernet, so that smooth and stable data transmission between the automobile Ethernet and the computer Ethernet is ensured, and use requirements in different scenes are met.

[0021] According to another specific embodiment of the present application, the display is used to display the working state and abnormal points of the test sample in the external environment.

[0022] According to another specific embodiment of the present application, the display comprises a computer and a mobile device.

[0023] According to another specific embodiment of the present application, the test sample in the external environment is a radar, and the CAN chip can receive distance, speed and angle signals.

[0024] According to another specific embodiment of the present application, the test sample in the external environment is a camera, and the CAN chip can receive image data signals, target recognition signals and image quality signals. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Connection diagram of the test device, the test sample and the wire harness in the embodiment of the present application is shown Figure One .

[0026] Figure 2 Connection diagram of the test device, the test sample and the wire harness in the embodiment of the present application is shown Figure Two .

[0027] REFERENCE SIGNS

[0028] Test device 100;

[0029] Central processing unit 110;Ethernet chip 111;CAN chip 112;

[0030] Display 120;

[0031] Wire harness adapter 130;

[0032] First part 131;Second part 132;

[0033] Power supply 140;

[0034] Ethernet adapter box 150;

[0035] Test sample 200;

[0036] Wire harness 300. DETAILED DESCRIPTION

[0037] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0038] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0040] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0041] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0043] refer to Figure 1 and Figure 2The embodiment of the present application provides a test device 100, the test device 100 is used for testing the performance state of an automobile electronic module test sample 200 (hereinafter referred to as "test sample 200"), the test sample 200 can be radar, camera and the like, and the test device 100 comprises a central processing unit 110 and a display 120.

[0044] The central processing unit 110 comprises two Ethernet chips 111 and five CAN chips 112, one end of each CAN chip 112 is used for connecting with the test sample 200 in the outside world to receive the signal of the test sample 200 in the outside world, and the other end of each CAN chip 112 is connected with the corresponding Ethernet chip 111. One of the Ethernet chips 111 is connected with two CAN chips 112 through a wire harness 300, and the other Ethernet chip 111 is connected with three CAN chips 112 through the wire harness 300. It should be noted that in other possible embodiments, one of the Ethernet chips 111 can be connected with one CAN chip 112, and the other Ethernet chip 111 can be connected with four CAN chips 112, and the embodiment of the present application is not specifically limited. That is, in the present application, the central processing unit 110 comprises at least one Ethernet chip 111, and each Ethernet chip 111 can be connected with multiple CAN chips 112.

[0045] The display 120 is connected with the Ethernet chip 111, and the display 120 is used for displaying the performance state of the test sample 200 in the outside world.

[0046] By adopting the above technical scheme, the use process of the test device 100 is as follows: multiple CAN chips 112 receive signals from the test sample 200 in the outside world, the test sample 200 of the automobile electronic module is various, and taking the test sample 200 in the outside world as an example, each radar outputs distance, speed and angle signals to the corresponding CAN chip 112. After receiving the signals, the CAN chip 112 rapidly transmits the signals to the Ethernet chip 111.

[0047] The Ethernet chip 111 integrates and packs the radar signals from the multiple CAN chips 112 to generate a data packet. Since the Ethernet itself has the advantages of high bandwidth, high speed and being suitable for long-distance transmission, it can cope with multiple CAN communication products. The data packets processed by the Ethernet chip 111 can be efficiently transmitted in the system, so as to ensure the integrity of signal acquisition and the accuracy of signal processing. Finally, the information (such as distance, speed and angle) carried by the data packets is displayed in the form of intuitive images on the display 120, and the test personnel can obtain the related data and timely understand the performance state of the test sample, thereby providing support for subsequent analysis and judgment.

[0048] By means of the technical scheme, the CANoe collector relied on in the traditional test scheme is cancelled, and instead, the CAN chip 112 and the Ethernet chip 111 in the central processor 110 are directly used to test the test sample 200 in the external environment. Not only is the overall size of the test device 100 reduced, so that the test device 100 is more compact and portable, but also the connection mode between the test sample 200 and the test device 100 is simplified, and the complexity and error probability in the connection process are reduced.

[0049] In addition, from the perspective of cost control, the CANoe collector used in the traditional test scheme has high procurement cost, and the price of each one is as high as hundreds of thousands of yuan. The technical scheme cancels the CANoe collector, reduces the test cost, saves the fund investment of enterprises in the test link, and improves the cost performance and economic benefits of the test work.

[0050] It should be noted that the number of Ethernet chips 111 is not specifically limited in the embodiments of the application, for example, in other possible implementation manners, the number of Ethernet chips 111 can be three, four, etc. The number of CAN chips 112 is not specifically limited in the embodiments of the application, for example, in other possible implementation manners, the number of CAN chips 112 can be ten, thirteen, eighteen, etc. The number of CAN chips 112 connected to each Ethernet chip 111 is not specifically limited in the embodiments of the application, for example, in other possible implementation manners, the number of CAN chips 112 connected to each Ethernet chip 111 can be nine, twelve, fifteen, etc. The number of CAN chips 112 connected to each Ethernet chip 111 is determined by the upper limit of the number of CAN chips 112 connectable by the Ethernet chip 111.

[0051] In some possible implementation manners, the test sample in the external environment is a radar, and the CAN chip 112 can receive distance, speed and angle signals.

[0052] In some possible implementation manners, the test sample in the external environment is a camera, and the CAN chip 112 can receive image data signals, target recognition signals and image quality signals.

[0053] In some possible implementation manners, with reference to Figure 1 and Figure 2 The test device 100 includes a wire harness adapter 130, one end of the wire harness adapter 130 is used to be connected with the test sample 200 in the external environment through the wire harness 300, and the other end of the wire harness adapter 130 is connected with the plurality of CAN chips 112 through the wire harness 300.

[0054] In some possible implementation manners, with reference to Figure 1 andFigure 2 The wire harness adapter 130 includes a detachably connected first part 131 and a second part 132. The first part 131 includes a plurality of first wire harness interfaces (not shown in the figure), each of which is used to connect to an external test sample 200 via a wire harness 300. The second part 132 includes a plurality of second wire harness interfaces (not shown in the figure), each of which is connected to a CAN chip 112 via a wire harness 300.

[0055] Using the above technical solution, when testers need to complete one experiment on test sample 200 and then move on to another, they only need to disassemble the wiring harness adapter 130, separating it into a first part 131 and a second part 132. The second part 132 remains in place and maintains its connection with the CAN chip 112. This arrangement ensures the stability of the relevant circuits of the CAN chip 112, while the first part 131 can accompany the test sample 200 to the next test site.

[0056] This operating method reduces the need for repeated plugging and unplugging of the wiring harness 300, lowering the probability of poor contact. Therefore, signals can be transmitted in a stable circuit environment, ensuring signal transmission stability. Stable signal transmission is fundamental to obtaining accurate test results; it makes the data collected during testing more realistic and reliable, thereby improving the accuracy and reliability of the test results.

[0057] In some possible implementations, refer to Figure 1 and Figure 2 The display 120 is connected to the Ethernet chip 111 via the wiring harness 300.

[0058] In some possible implementations, refer to Figure 1 and Figure 2 The test device 100 includes a power supply 140, and a central processing unit 110 is connected to the power supply 140 via a wiring harness 300.

[0059] In some possible implementations, refer to Figure 1 and Figure 2 The test device 100 includes an Ethernet adapter box 150, one end of which is connected to a display 120, and the other end of which is connected to an Ethernet chip 111.

[0060] By adopting the above technical solution, since automotive Ethernet and computer Ethernet differ in many aspects such as data transmission requirements, network topology, and protocols and standards, an Ethernet adapter box 150 is set up to convert and adapt signals, protocols, and interfaces to suit the different characteristics of automotive Ethernet and computer Ethernet, thereby ensuring smooth and stable data transmission between the two and meeting the usage needs in different scenarios.

[0061] In some possible embodiments, referring to Figure 1 and Figure 2 , the display 120 is configured to display the working state of the test sample 200 in the external environment, and the abnormal point.

[0062] It should be noted that the present application does not make specific limitations on other states of the test sample that can be displayed by the display 120, for example, in other possible embodiments, the display 120 can also display the test data chart of the test sample 200, the test process progress, the device connection information, and the like.

[0063] In some possible embodiments, the display 120 includes a computer, a mobile device.

[0064] It should be noted that the present application does not make specific limitations on the specific structure of the mobile device, for example, in other possible embodiments, the mobile device can be a mobile phone, a projector, and the like, and the tester can project the performance state of the test sample to an open plane through the projector, so as to observe the detailed part of the performance state of the test sample in detail.

[0065] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further detailed description of the present application in conjunction with the specific embodiments, and the specific implementation of the present application should not be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple derivations or substitutions, without departing from the spirit and scope of the present application.

Claims

1. A testing device, characterized in that, The testing apparatus includes: The central processing unit includes at least one Ethernet chip and multiple CAN chips. One end of each CAN chip is used to connect to an external test sample to receive signals from the external test sample, and the other end of each CAN chip is connected to its corresponding Ethernet chip. A display, connected to the Ethernet chip, is used to display the performance status of an external test sample.

2. The testing apparatus as described in claim 1, characterized in that, The testing device includes a wire harness adapter. One end of the wire harness adapter is used to connect to an external test sample via a wire harness, and the other end of the wire harness adapter is connected to the plurality of CAN chips via a wire harness.

3. The testing apparatus as described in claim 2, characterized in that, The wire harness adapter includes a detachably connected first part and a second part. The first part includes a plurality of first wire harness interfaces, each of which is used to connect to an external test sample via a wire harness. The second part includes a plurality of second wire harness interfaces, each of which is connected to the CAN chip via a wire harness.

4. The testing apparatus as described in claim 1, characterized in that, The display is connected to the Ethernet chip via a wiring harness.

5. The testing apparatus as described in claim 1, characterized in that, The testing device includes a power supply, and the central processing unit is connected to the power supply via a wiring harness.

6. The testing apparatus as described in claim 1, characterized in that, The testing device includes an Ethernet adapter box, one end of which is connected to the display, and the other end of which is connected to the Ethernet chip.

7. The testing apparatus as described in claim 1, characterized in that, The display is used to show the working status and abnormalities of the external test sample.

8. The testing apparatus as described in claim 1, characterized in that, The display includes computers and mobile devices.

9. The testing apparatus as described in claim 1, characterized in that, The test sample corresponding to the external environment is a radar, and the CAN chip can receive distance, speed and angle signals.

10. The testing apparatus as described in claim 1, characterized in that, The external test sample is a camera, and the CAN chip can receive image data signals, target recognition signals, and image quality signals.

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