CN216981928U - Communication testing device for electronic control unit of whole vehicle - Google Patents
Communication testing device for electronic control unit of whole vehicle Download PDFInfo
- Publication number
- CN216981928U CN216981928U CN202123041479.8U CN202123041479U CN216981928U CN 216981928 U CN216981928 U CN 216981928U CN 202123041479 U CN202123041479 U CN 202123041479U CN 216981928 U CN216981928 U CN 216981928U
- Authority
- CN
- China
- Prior art keywords
- communication
- module
- interface module
- external
- communication connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 247
- 238000012360 testing method Methods 0.000 title claims abstract description 131
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a communication testing arrangement of whole car electronic control unit includes: the device comprises an external interface module and a communication interface module; the communication test device is in communication connection with the tested electronic device through the external interface module and is in communication connection with the terminal equipment through the communication interface module; the external interface module and the communication interface module are arranged in a one-to-one correspondence manner, and the external interface module is in communication connection with the communication interface module, so that the whole volume of the communication testing device is small, and the testing requirement under the real vehicle scene is met.
Description
Technical Field
The disclosure relates to the technical field of communication testing, in particular to a communication testing device of an electronic control unit of a whole vehicle.
Background
With the improvement of automotive Electronic automation, Electronic Control Units (ECUs) of a whole vehicle are increasing, information transmission among multiple ECUs in the whole vehicle adopts a multiplexing communication Network technology, that is, the ECUs of the whole vehicle form a Network system, and the ECUs communicate in a communication mode such as a Controller Area Network (CAN) or a serial communication Network (LIN).
In the prior art, an automatic test cabinet is generally adopted to realize the communication test of the ECU. However, the whole volume of the automatic test cabinet is large, so that the automatic test cabinet cannot be moved at will when the requirement of real vehicle testing is met, and the convenience is low.
Disclosure of Invention
In order to solve the technical problem, the present disclosure provides a communication testing device for an electronic control unit of a whole vehicle, which reduces the overall size of the communication testing device.
The embodiment of the present disclosure provides a communication testing device for an electronic control unit of a whole vehicle, including: the device comprises an external interface module and a communication interface module;
the communication test device is in communication connection with the tested electronic device through an external interface module, and the communication test device is in communication connection with the terminal equipment through a communication interface module;
the external interface module and the communication interface module are arranged in a one-to-one correspondence mode, and the external interface module is in communication connection with the communication interface module.
Optionally, the communication testing apparatus further includes an interference module;
at least one external interface module is in communication connection with the communication interface module through the interference module.
Optionally, the communication testing apparatus further includes a first switch module;
the first end of the first switch module is in communication connection with the external interface module, the second end of the first switch module is in communication connection with the first end of the interference module, and the third end of the switch module is in communication connection with the communication interface module.
Optionally, the first switch module includes a single-pole double-throw switch, a fixed contact of the single-pole double-throw switch is in communication connection with the external interface module, a first movable contact of the single-pole double-throw switch is in communication connection with the first end of the interference module, and a second movable contact of the single-pole double-throw switch is in communication connection with the communication interface module.
Optionally, the external interface module includes a CAN external interface and a LIN external interface, and the communication test apparatus further includes a second switch module;
and the first end of the second switch module is in communication connection with the LIN external interface, and the second end of the second switch module is in communication connection with the communication interface module.
Optionally, the communication testing apparatus further includes an oscilloscope, the oscilloscope and the communication interface module are arranged in a one-to-one correspondence, and the oscilloscope is in communication connection with the communication interface module.
Optionally, the communication testing apparatus further includes an external power interface module, and the external power interface module is in communication connection with a power supply end of the tested electronic device.
Optionally, the communication testing apparatus further includes a first power supply module;
the first power supply module is in communication connection with the external power supply interface module.
Optionally, the external power interface module includes a power-on interface, a voltage interface, and a ground interface.
Optionally, the communication testing apparatus further includes a second power supply module, and the second power supply module is in communication connection with the interference module, the communication interface module, and the oscilloscope respectively.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the communication testing device of whole car electronic control unit that this disclosed embodiment provided, through communication interface module and terminal equipment communication connection, realize terminal equipment and tested electron device communication connection through communication testing device, can remove the communication test to under the real car test operating mode, because communication testing device only includes external interface module and communication interface module, consequently, communication testing device's whole volume is less, realizes the test demand under the real car scene, satisfies the test demand diversified.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic perspective view of a communication testing device of an electronic control unit of a finished automobile according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a communication testing device of an electronic control unit of a finished automobile according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another communication testing device of an electronic control unit of a finished automobile according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a communication testing device of a further entire vehicle electronic control unit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a communication testing device of a further entire vehicle electronic control unit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a communication testing device of a vehicle electronic control unit according to another embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a communication testing device of a vehicle electronic control unit according to another embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a communication testing device of a vehicle electronic control unit according to another embodiment of the present disclosure.
10, an electronic device to be tested; 20. a communication test device; 30. a terminal device; 21. an external interface module; 22. a communication interface module; 23. an interference module; 24. a first switch module; 25. a second switch module; 26. an oscilloscope; 27. a power interface module; 28. a first power supply module; 29. a second power supply module; 210. a CAN external interface; 211. LIN is connected to the external interface.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
In view of the above drawbacks of the prior art, an embodiment of the present disclosure provides a communication testing apparatus for an electronic control unit of a finished vehicle, fig. 1 is a schematic perspective view of the communication testing apparatus for the electronic control unit of the finished vehicle according to the embodiment of the present disclosure, fig. 2 is a schematic structural view of the communication testing apparatus for the electronic control unit of the finished vehicle according to the embodiment of the present disclosure, and with reference to fig. 1 and fig. 2, the communication testing apparatus includes: the device comprises an external interface module 21 and a communication interface module 22, wherein the communication test device 20 is in communication connection with the tested electronic device 10 through the external interface module 21, and the communication test device 20 is in communication connection with the terminal equipment 30 through the communication interface module 22; the external interface modules 21 and the communication interface modules 22 are arranged in a one-to-one correspondence manner, and the external interface modules 21 are in communication connection with the communication interface modules 22.
Specifically, the Electronic device 10 to be tested may be an Electronic Control Unit (ECU), which is also called a "vehicle computer" of the vehicle, for example, and is used to Control the driving state of the vehicle and implement various functions thereof. The automobile is mainly characterized in that the automobile state and the intention of a driver are judged by data acquisition and exchange of various sensors and buses, and the automobile is controlled by an actuator.
The communication test device 20 is in communication connection with the tested electronic device 10 through the external interface module 21, and is in wired communication, for example, the external interface module 21 is in communication connection with the tested electronic device 10 through a CAN line, or the external interface module 21 is in communication connection with the tested electronic device 10 through a LIN line.
The communication test apparatus 20 is communicatively connected to the terminal device 30 through the communication interface module 22, and the communication interface module 22 may be communicatively connected to the terminal device 30 through a USB data line or the like.
The terminal device 30 may be a tablet computer, a mobile phone, a wearable device, an in-vehicle device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), a smart screen, and the like, and the present disclosure does not limit the specific type of the terminal device 30.
The communication test device of the whole vehicle electronic control unit provided by the embodiment of the disclosure, the communication test device 20 is in communication connection with the tested electronic device 10 through the external interface module 21, the communication test device 20 is in communication connection with the terminal equipment 30 through the communication interface module 22, when the tested electronic device 10 is subjected to communication test, the terminal equipment 30 issues a test instruction to the communication test device 20 through the communication interface module 22, the communication test device 20 issues the test instruction to the tested electronic device 10 through the external interface module 21, so as to realize the communication test on the tested electronic device 10, wherein the communication test on the tested electronic device 10 refers to the CAN line communication test and/or LIN line communication test on the tested electronic device 10.
It should be noted that, in the embodiment corresponding to fig. 2, the number of the tested electronic devices 10 is exemplarily shown to be 4, and the number of the external interface modules of the communication testing apparatus 20 is 4, in other possible embodiments, in order to reduce the overall volume of the communication testing apparatus 20, one external interface module may include a plurality of external interfaces, for example, four external interfaces form one external interface module 21, and the four external interfaces are communicatively connected to the same communication interface module, as shown in fig. 3.
According to the communication testing device provided by the embodiment of the disclosure, the communication testing device 20 and the terminal device 30 are separately arranged, that is, the communication testing device 20 and the terminal device 30 are non-integrated communication testing devices, so that when an electronic control unit in a real vehicle needs to be tested, the communication testing device 20 can be directly moved to a live test scene, and the communication connection between the terminal device 30 and the tested electronic device 10 is realized through the communication testing device 20, because the communication testing device 20 only comprises the external interface module 21 and the communication interface module 22, the overall size of the communication testing device 20 is small, the testing requirement in the real vehicle scene is realized, and the testing requirement diversification is satisfied.
The utility model provides a communication testing arrangement of whole car electronic control unit, through external interface module and tested electron device communication connection, communication testing arrangement passes through communication interface module and terminal equipment communication connection, realize terminal equipment and tested electron device communication connection through communication testing arrangement, can remove the communication test to the real car under the test condition, because communication testing arrangement only includes external interface module and communication interface module, therefore, communication testing arrangement's whole volume is less, realize the test demand under the real car scene, it is diversified to satisfy the test demand.
As an implementable manner, fig. 4 is a schematic structural diagram of another communication testing device of an electronic control unit of a finished vehicle provided in the embodiment of the present disclosure, and on the basis of the above embodiment, as shown in fig. 4, the communication testing device further includes an interference module 23; at least one external interface module 21 is in communication connection with the communication interface module 22 via the interference module 23.
As shown in fig. 4, the communication testing apparatus provided in the embodiment of the present disclosure further includes an interference module 23, referring to fig. 4, the interference module 23 is connected in series between the external interface module 21 and the communication interface module 22, by providing the interference module 23, when the tested electronic device 10 is subjected to the communication fault test, the terminal device 30 issues a package fault communication instruction to the communication interface module 22, the interference module 23 in communication connection with the communication interface module 22 generates communication interference, and at this time, the tested electronic device 10 connected to the external interface module 21 in communication connection with the interference module 23 can implement the communication fault test.
In an implementation manner, an external interface module 21 may be provided to be in communication connection with the communication interface module 22 through the interference module 23, so that the communication testing apparatus can meet the requirement of the communication interference test when performing the automation test.
As an implementable manner, fig. 5 is a schematic structural diagram of a communication testing device of a vehicle electronic control unit according to an embodiment of the present disclosure, and the embodiment of the present disclosure is based on the embodiment corresponding to fig. 4, as shown in fig. 5, the communication testing device further includes a first switch module 24; the first end of the first switch module 24 is in communication connection with the external interface module 21, the second end of the first switch module 24 is in communication connection with the first end of the interference module 23, and the third end of the first switch module 24 is in communication connection with the communication interface module 22.
Specifically, the first switch module 24 includes a single-pole double-throw switch, a fixed contact of the single-pole double-throw switch is in communication connection with the external interface module 21, a first movable contact of the single-pole double-throw switch is in communication connection with a first end of the interference module 23, and a second movable contact of the single-pole double-throw switch is in communication connection with the communication interface module 22.
When the interference module 23 is disposed between at least one external interface module 21 and the communication interface module 22, so that the communication testing apparatus meets the requirement of the automatic testing, in order to ensure that the basic communication testing requirement is met between the external interface module 21 and the communication interface module 22, a first switch module 24 is disposed between the external interface module 21 and the interference module 23, the first switch module 24 includes a single-pole double-throw switch, specifically, referring to fig. 5, a stationary contact of the single-pole double-throw switch is in communication connection with the external interface module 21, a first movable contact of the single-pole double-throw switch is in communication connection with a first end of the interference module 23, a second movable contact of the single-pole double-throw switch is in communication connection with the communication interface module 22, when the communication testing apparatus performs the basic communication function testing, a first channel of the first switch module 24 is controlled to be in an off state, a second channel of the first switch module 24 is controlled to be in an on state, namely, the fixed contact of the single-pole double-throw switch is in communication connection with the second movable contact, the external interface module 21 is not in conduction with the interference module 23, the external interface module 21 is directly in communication connection with the communication interface module 22, when the communication test device performs an interference test, the second channel of the first switch module 24 is controlled to be in an off state, the first channel of the first switch module 24 is in a conduction state, namely, the fixed contact of the single-pole double-throw switch is in communication connection with the first movable contact, the external interface module 21 is in conduction with the interference module 23, and the external interface module 21 is in communication connection with the communication interface module 22 through the interference module 23.
As an implementable manner, fig. 6 is a schematic structural diagram of a communication test device of another whole vehicle electronic control unit provided in the embodiment of the present disclosure, and the embodiment of the present disclosure is based on the foregoing embodiment, as shown in fig. 6, the external interface module 21 includes a CAN external interface 210 and a LIN external interface 211, and the communication test device further includes a second switch module 25; a first end of the second switch module 25 is communicatively connected to the LIN external interface 211, and a second end of the second switch module 25 is communicatively connected to the communication interface module 22.
The external interface module 21 of the communication test device comprises a CAN external interface 210 and a LIN external interface 211, when the tested electronic device 10 is connected through the LIN external interface 211, LIN communication line open-circuit fault test needs to be carried out on the tested electronic device 10 connected with the LIN external interface 211, on the basis, the communication test device further comprises a second switch module 25 through arrangement, the second switch module 25 is connected in series in the communication interface module 22 and the LIN external interface 211, when the tested electronic device 10 is subjected to LIN communication test, the second switch module 25 is controlled to be conducted, namely the LIN external interface 211 is directly in communication connection with the communication interface module 22, and when the LIN communication open-circuit fault test is carried out on the tested electronic device 10, the second switch module 25 is controlled to be turned off, namely the LIN external interface 211 is not conducted with the communication interface module 22.
As an implementable manner, fig. 7 is a schematic structural diagram of a communication testing apparatus of another whole vehicle electronic control unit provided in the embodiment of the present disclosure, and in the embodiment of the present disclosure, on the basis of the above embodiment, as shown in fig. 7, the communication testing apparatus further includes oscilloscopes 26, the oscilloscopes 26 are arranged in one-to-one correspondence with the communication interface modules 22, and the oscilloscopes 26 are in communication connection with the communication interface modules 22.
By correspondingly arranging the oscilloscope 26 in the communication interface module 22, tests such as explicit and implicit voltages, rising and falling edges and the like are performed based on waveforms of the electronic device to be tested in CAN communication or LIN communication, which are captured by the oscilloscope.
As an implementable manner, fig. 8 is a schematic structural diagram of a communication testing apparatus of a vehicle electronic control unit according to an embodiment of the present disclosure, and in the embodiment of the present disclosure, on the basis of the foregoing embodiment, as shown in fig. 8, the communication testing apparatus further includes an external power interface module 27, and the external power interface module 27 is in communication connection with a power supply terminal of the electronic device 10 to be tested.
Optionally, the external power interface module 27 includes a power-on interface, a voltage interface and a ground interface.
Through set up external power interface module 27 on communication testing arrangement, external power interface module 27 and tested electron device 10 communication connection, when realizing that communication testing arrangement carries out communication test to tested electron device 10, provide test voltage signal for tested electron device 10 to external power interface module 27.
Continuing with fig. 8, as one possible implementation, the communication testing device further includes a first power module 28; the first power module 28 is communicatively coupled to the external power interface module 27.
The first power module 28 provides corresponding voltage signals to the power-on interface and the voltage interface of the external power interface module 27, so as to provide working voltage to the electronic device 10 to be tested.
Specifically, the power-on interface provides an ignition signal for the electronic device 10 to be tested, the voltage interface provides an operating voltage signal for the electronic device 10 to be tested, and the ground interface provides a ground voltage signal for the electronic device 10 to be tested.
As an implementation manner, with continued reference to fig. 8, the communication testing apparatus further includes a second power module 29, and the second power module 29 is communicatively connected to the interference module 23, the communication interface module 22 and the oscilloscope 26, respectively.
The communication test device further comprises a second power supply module 29, and the second power supply module 29 is used for providing voltage signals required by the respective operations for the interference module 23, the communication interface module 22 and the oscilloscope 26.
In the above embodiment, for example, the communication interface module 22 includes a VN1640 bus interface card, the interference module 23 includes a VH6501, and the first power supply module includes a VH 1160.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a communication testing arrangement of whole car electronic control unit which characterized in that includes: the device comprises an external interface module and a communication interface module;
the communication test device is in communication connection with the tested electronic device through an external interface module, and the communication test device is in communication connection with the terminal equipment through a communication interface module;
the external interface module and the communication interface module are arranged in a one-to-one correspondence mode, and the external interface module is in communication connection with the communication interface module.
2. The apparatus of claim 1, wherein the communication testing apparatus further comprises an interference module;
at least one external interface module is in communication connection with the communication interface module through the interference module.
3. The apparatus of claim 2, wherein the communication test apparatus further comprises a first switching module;
the first end of the first switch module is in communication connection with the external interface module, the second end of the first switch module is in communication connection with the first end of the interference module, and the third end of the first switch module is in communication connection with the communication interface module.
4. The apparatus of claim 3, wherein the first switch module comprises a single-pole double-throw switch, a fixed contact of the single-pole double-throw switch is communicatively coupled to the external interface module, a first movable contact of the single-pole double-throw switch is communicatively coupled to the first end of the interference module, and a second movable contact of the single-pole double-throw switch is communicatively coupled to the communication interface module.
5. The apparatus of claim 1, wherein the external interface module comprises a CAN external interface and a LIN external interface, the communication test apparatus further comprising a second switch module;
and the first end of the second switch module is in communication connection with the LIN external interface, and the second end of the second switch module is in communication connection with the communication interface module.
6. The device of claim 2, wherein the communication testing device further comprises oscilloscopes, the oscilloscopes are arranged in one-to-one correspondence with the communication interface modules, and the oscilloscopes are in communication connection with the communication interface modules.
7. The apparatus according to claim 1, wherein the communication test apparatus further comprises an external power interface module, and the external power interface module is connected to a power supply terminal of the electronic device under test in communication.
8. The apparatus of claim 7, wherein the communication test apparatus further comprises a first power module;
the first power supply module is in communication connection with the external power supply interface module.
9. The apparatus of claim 7, wherein the external power interface module comprises a power-up interface, a voltage interface, and a ground interface.
10. The apparatus of claim 6, wherein the communication testing apparatus further comprises a second power module, and the second power module is in communication connection with the interference module, the communication interface module and the oscilloscope respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041479.8U CN216981928U (en) | 2021-12-03 | 2021-12-03 | Communication testing device for electronic control unit of whole vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041479.8U CN216981928U (en) | 2021-12-03 | 2021-12-03 | Communication testing device for electronic control unit of whole vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216981928U true CN216981928U (en) | 2022-07-15 |
Family
ID=82346660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123041479.8U Active CN216981928U (en) | 2021-12-03 | 2021-12-03 | Communication testing device for electronic control unit of whole vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216981928U (en) |
-
2021
- 2021-12-03 CN CN202123041479.8U patent/CN216981928U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202649810U (en) | Equipment used for automotive electronic control module CAN network integration test | |
| CN110471400B (en) | Vehicle-mounted Ethernet real vehicle test method | |
| CN210038539U (en) | Hardware-in-loop test system capable of adapting to multiple controllers | |
| CN201280106Y (en) | Bus line multi-leaving adapter of automotive vehicle | |
| CN101389969A (en) | Method and circuit arrangement for simulating fault states in a control device | |
| CN102929274A (en) | Test system, method and device for redundancy of in-vehicle network during ground offset | |
| CN201716590U (en) | Automatic automobile bus switching instrument | |
| CN108445860B (en) | Diagnostic apparatus, diagnostic request processing method, and computer-readable storage medium | |
| CN216981928U (en) | Communication testing device for electronic control unit of whole vehicle | |
| CN103064399A (en) | Breakdown simulation analyzing device used for vehicle diagnosis | |
| CN109743240B (en) | Interface switching device and method for communication equipment | |
| CN112817888B (en) | OBD device state setting method and device, OBD device and storage medium | |
| CN211180648U (en) | Extensible automobile electronic control module test system | |
| CN106803776B (en) | Radio frequency front end testing device and radio frequency front end testing method | |
| CN213042147U (en) | Vehicle-mounted gateway system and automobile | |
| CN214585732U (en) | Wire breaker for domain controller system-level network automation test | |
| CN212364465U (en) | Switch type test box for automobile instrument | |
| CN215818208U (en) | Vehicle-mounted gigabit Ethernet port conversion device and automobile | |
| CN112180896A (en) | OBD test auxiliary device, tester and test equipment | |
| CN215300648U (en) | CAN bus test circuit and system | |
| CN112698138A (en) | Wire breaker for domain controller system-level network automation test and control method | |
| CN210201833U (en) | Expansion device for radio frequency test port | |
| CN219018834U (en) | Network integration test system suitable for different electrical architectures | |
| CN219676484U (en) | Multifunctional fault simulation test system | |
| CN217821347U (en) | Diagnostic test device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |