CN113010357B - Testing method, device, equipment and medium for edge intelligent terminal CAN interface - Google Patents

Testing method, device, equipment and medium for edge intelligent terminal CAN interface Download PDF

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CN113010357B
CN113010357B CN202110271755.5A CN202110271755A CN113010357B CN 113010357 B CN113010357 B CN 113010357B CN 202110271755 A CN202110271755 A CN 202110271755A CN 113010357 B CN113010357 B CN 113010357B
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data
intelligent terminal
interface
edge intelligent
usb
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CN113010357A (en
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张含
陈金龙
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Shandong Yingxin Computer Technology Co Ltd
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Shandong Yingxin Computer Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2273—Test methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • General Engineering & Computer Science (AREA)
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Abstract

The invention discloses a method, a device, equipment and a medium for testing an edge intelligent terminal CAN interface. The method comprises the following steps: transmitting CAN bus data to a test medium by using a CAN interface of the edge intelligent terminal; receiving and analyzing the CAN bus data by using the test medium, and converting the analyzed data into USB data; and acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal or not according to the comparison result. The scheme of the invention realizes the automatic test of the CAN bus of the edge intelligent terminal, does not need to manually test the function of the CAN bus through a notebook computer and tools, saves the labor cost, greatly improves the production efficiency, avoids the condition of failure and false alarm caused by manual operation, and effectively ensures the quality of the edge intelligent terminal.

Description

Testing method, device, equipment and medium for edge intelligent terminal CAN interface
Technical Field
The invention relates to the technical field of electronic element detection, in particular to a method, a device, equipment and a medium for testing an edge intelligent terminal CAN interface.
Background
With the development of new technologies such as the internet of things and 5G, data generated by mass equipment begins to increase exponentially, and the demand for edge intelligent terminal products in the market is more and more strong. The CAN bus is a common interface on edge intelligent terminal products, and is widely used in the fields of industrial automation, ships, medical equipment, industrial equipment, and the like, while in use and delivery, a Controller Area Network (Controller Area Network) of the edge intelligent terminal products provides a powerful technical support for a distributed control system to realize real-time and reliable data communication between nodes, and is widely applied to the fields of industrial automation, ships, medical equipment, industrial equipment, and the like) interface test is an indispensable process.
At present, the testing method of the edge intelligent terminal CAN interface is that personnel test the function of the CAN bus through a notebook computer and a tool, the existing testing mode is dependent on manual work, generally, manual operation often brings the situations of failure, missing report or false report, and the testing efficiency is extremely low, so that the production cost of the edge intelligent terminal is high;
disclosure of Invention
In view of the above, there is a need to provide a method, an apparatus, a device and a medium for testing a CAN interface of an edge intelligent terminal, which CAN automatically perform a CAN interface test and avoid relying on manual operation.
According to a first aspect of the present invention, there is provided a method for testing an edge intelligent terminal CAN interface, the method comprising:
transmitting CAN bus data to a test medium by using a CAN interface of the edge intelligent terminal;
receiving and analyzing the CAN bus data by using the test medium, and converting the analyzed data into USB data;
and acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal or not according to the comparison result.
In one embodiment, the step of receiving and parsing the CAN bus data using the test medium, and converting the parsed data into USB data includes:
receiving the CAN bus data from a CAN interface of the edge intelligent terminal by using a CAN chip of the test medium and performing data analysis to obtain analyzed CAN bus data;
the CAN chip sends the analyzed CAN bus data to the MCU module of the test medium;
and converting the analyzed CAN bus data into USB data by using the MCU module.
In one embodiment, the step of converting the analyzed CAN bus data into USB data by using the MCU module includes:
the MCU module is used for summarizing analyzed CAN bus data and arranging a data format;
sending the sorted data TO a UART TO USB module through a UART interface of the MCU module;
and converting the sorted data into USB data through a UART TO USB module.
In one embodiment, the step of acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the acquired USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal according to the comparison result includes:
if the USB data is consistent with a preset result, confirming that a CAN interface of the edge intelligent terminal is normal;
if the USB data is inconsistent with a preset result, confirming that a CAN interface of the edge intelligent terminal is abnormal;
and the preset result is data obtained by analyzing the CAN bus data through a CAN bus protocol.
In one embodiment, the sending CAN bus data to the test medium by using the CAN interface of the edge intelligent terminal includes:
the CAN interface connecting the edge intelligent terminal with the test medium is communicated with the CAN _ H signal through a CAN _ L signal;
and transmitting the CAN bus data from the edge intelligent terminal to a test medium by using the CAN _ L signal and the CAN _ H signal.
In one embodiment, the method further comprises:
and adjusting the baud rates of the edge intelligent terminal and the test medium to be consistent in advance.
In one embodiment, the baud rates of the edge intelligent terminal and the test medium after adjustment are both 300000.
According to a second aspect of the present invention, there is provided a testing apparatus for an edge intelligent terminal CAN interface, the apparatus comprising:
the transmitting module is used for transmitting CAN bus data to the testing medium by utilizing a CAN interface of the edge intelligent terminal;
the analysis and conversion module is used for receiving and analyzing the CAN bus data by using the test medium and converting the analyzed data into USB data;
and the comparison module is used for acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal or not according to the comparison result.
According to a third aspect of the present invention, there is also provided a computer apparatus comprising:
at least one processor; and
and the memory stores a computer program which CAN run on the processor, and the processor executes the testing method of the edge intelligent terminal CAN interface when executing the program.
According to the fourth aspect of the present invention, there is also provided a computer-readable storage medium, in which a computer program is stored, and the computer program is executed by a processor to execute the foregoing testing method for the edge intelligent terminal CAN interface.
The testing method of the edge intelligent terminal CAN interface comprises the following steps of firstly, sending CAN bus data to a testing medium by using the CAN interface of the edge intelligent terminal; then, the CAN bus data is received and analyzed by using the test medium, and the analyzed data is converted into USB data; and finally, the USB interface of the edge intelligent terminal is utilized to acquire USB data from the test medium and compare the USB data with a preset result, and whether the CAN interface of the edge intelligent terminal is normal is determined according to the comparison result, so that the automatic test of the CAN bus of the edge intelligent terminal is realized, the function test of the CAN bus through a notebook computer and tools is not needed manually, the labor cost is saved, the production efficiency is greatly improved, the condition of failure missing report or false report caused by manual operation is avoided, and the quality of the edge intelligent terminal is effectively guaranteed.
In addition, the invention also provides a testing device of the edge intelligent terminal CAN interface, a computer device and a computer readable storage medium, which CAN also realize the technical effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a testing method for an edge intelligent terminal CAN interface according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a CAN interface connector male according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a testing apparatus for a CAN interface of an edge intelligent terminal according to another embodiment of the present invention;
fig. 4 is an internal structural view of a computer device in another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In an embodiment, referring to fig. 1, the present invention provides a method for testing a CAN interface of an edge intelligent terminal, including the following steps:
s200, sending CAN bus data to a test medium by using a CAN interface of the edge intelligent terminal;
s400, receiving and analyzing the CAN bus data by using the test medium, and converting the analyzed data into USB data;
s600, acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal according to the comparison result.
The testing method of the edge intelligent terminal CAN interface comprises the following steps of firstly, sending CAN bus data to a testing medium by using the CAN interface of the edge intelligent terminal; then, the CAN bus data is received and analyzed by using the test medium, and the analyzed data is converted into USB data; and finally, the USB interface of the edge intelligent terminal is utilized to acquire USB data from the test medium and compare the USB data with a preset result, and whether the CAN interface of the edge intelligent terminal is normal is determined according to the comparison result, so that the automatic test of the CAN bus of the edge intelligent terminal is realized, the function test of the CAN bus through a notebook computer and tools is not needed manually, the labor cost is saved, the production efficiency is greatly improved, the condition of failure missing report or false report caused by manual operation is avoided, and the quality of the edge intelligent terminal is effectively guaranteed.
In another embodiment, please refer to fig. 2, the step S200 specifically includes the following sub-steps:
s210, communicating the edge intelligent terminal with a CAN interface connected with a test medium through a CAN _ L signal and a CAN _ H signal;
and S220, sending the CAN bus data from the edge intelligent terminal to a test medium by using the CAN _ L signal and the CAN _ H signal.
In a specific implementation process, a standard nine-pin connector is generally used for connecting a CAN interface of an edge intelligent terminal, and if the standard nine-pin connector is not used for connecting, at the moment, only a CAN _ L signal 1 line and a CAN _ H signal 9 are required to be connected with the edge intelligent terminal and a test medium, wherein the CAN _ L signal 1 corresponds to a No. 2 pin of a male head of the standard nine-pin connector, and the CAN _ H signal 9 corresponds to a No. 7 pin of the male head of the standard nine-pin connector, namely, whether the No. 1 pin, the No. 3 pin to the No. 6 pin, and the No. 8 pin and the No. 9 pin are connected or not has no influence on the test process, and CAN be connected or disconnected.
In another embodiment, the foregoing step S400 specifically includes the following sub-steps:
s410, receiving the CAN bus data from the CAN interface of the edge intelligent terminal by using the CAN chip of the test medium and performing data analysis to obtain analyzed CAN bus data;
s420, the CAN chip sends the analyzed CAN bus data to the MCU module of the test medium;
and S430, converting the analyzed CAN bus data into USB data by using the MCU module.
Further, the implementation process of the foregoing step S430 is as follows:
s431, summarizing the analyzed CAN bus data by using the MCU module and finishing a data format; the MCU module is a microcontroller (Micro Controller Unit), the summarized and sorted data can be sent through a UART interface, and the UART is a Universal Asynchronous Receiver/Transmitter (Universal Asynchronous Receiver/Transmitter).
S432, sending the sorted data TO a UART TO USB module through a UART interface of the MCU module;
and S433, converting the sorted data into USB data through a UART TO USB module.
In another embodiment, the step S600 specifically includes the following steps:
s610, if the USB data is consistent with a preset result, confirming that a CAN interface of the edge intelligent terminal is normal;
s620, if the USB data is inconsistent with a preset result, determining that a CAN interface of the edge intelligent terminal is abnormal;
and the preset result is data obtained by analyzing the CAN bus data through a CAN bus protocol.
It should be noted that the edge intelligent terminal includes both a CAN interface and a USB interface, and the testing medium includes both a CAN interface and a USB interface in the same way, and the interfaces corresponding to the two are connected with each other, so that the CAN interface is used to transmit CAN bus data, and the USB interface receives returned data after conversion, and usually, the USB interface and the CAN interface of the testing medium are both determined normally in advance, so that whether the CAN interface of the edge intelligent terminal is abnormal or not CAN be determined by comparing the consistency of the data with a preset result.
In another embodiment, in order to ensure effective transmission of data between the edge intelligent terminal and the test medium, the baud rates of the edge intelligent terminal and the test medium can be adjusted in advance at the beginning of the test, and the specific operation mode is as follows:
and S800, adjusting the baud rates of the edge intelligent terminal and the test medium to be consistent in advance.
Preferably, the baud rates of the edge intelligent terminal and the test medium after adjustment in step S800 are both 300000.
In order TO facilitate understanding of the technical scheme of the invention, an edge intelligent terminal and a test medium are taken as an example for explanation, the edge intelligent terminal and the test medium both comprise a CAN interface and a USB interface, a CAN chip, an MCU module and a UART TO USB module are integrated on the test medium, and the MCU module is connected with the UART TO USB module through the UART interface; the specific test procedure is as follows:
one end of a test medium is connected with an edge intelligent terminal CAN bus, and the other end of the test medium is connected with an edge intelligent terminal USB interface.
Step two, when the test is started, the CAN bus is started on the edge intelligent terminal, the baud rate is set to be consistent with the test medium, the baud rate is appointed to be 300000, and the reference of the operation command is as follows:
ip link set can0 up type can bitrate 300000
step three, the edge intelligent terminal CAN bus sends data to a test medium, and if the CAN bus data to be sent is 4142434445464748, the reference of an operation command for sending the data is as follows:
cansend can0 123#4142434445464748
step four, the test medium receives CAN bus data, analyzes the CAN bus data according TO a CAN bus protocol and converts the data into USB data, the CAN chip and the MCU module which are integrated on the test medium are utilized, after the CAN bus data of the edge intelligent terminal are received, the CAN chip analyzes the data and sends the data TO the MCU module, the MCU module summarizes the data and arranges a data format, the arranged data are sent TO a UART interface, and the UART TO USB module converts the data into USB data;
and step five, the edge intelligent terminal acquires the USB data transmitted back by the test medium from the USB interface, compares the USB data with an expected result ABCDEFGH (4142434445464748 is ABCDEFGH after being analyzed by a CAN bus protocol), if the result is consistent, the CAN bus is considered to be normal in function, otherwise, the CAN bus is considered to be abnormal in function, and reports the fault.
The method at least has the following technical effects: (1) the automatic testing of the CAN bus of the edge intelligent terminal CAN be realized, the manual work for carrying out the function testing of the CAN bus through a notebook computer and tools is not needed, the labor cost is saved, the production efficiency (2) is greatly improved, the automatic CAN interface testing is realized, the condition of failure missing report or misinformation caused by manual operation is avoided, and the quality of the edge intelligent terminal is effectively ensured.
In another embodiment, referring to fig. 3, the present invention further provides a testing apparatus 90 for an edge intelligent terminal CAN interface, the apparatus including:
the sending module 91 is used for sending CAN bus data to the test medium by utilizing a CAN interface of the edge intelligent terminal;
the analyzing and converting module 92 is configured to receive and analyze the CAN bus data using the test medium, and convert the analyzed data into USB data;
and the comparison module 93 is configured to obtain the USB data from the test medium by using the USB interface of the edge intelligent terminal, compare the USB data with a preset result, and determine whether the CAN interface of the edge intelligent terminal is normal according to the comparison result.
It should be noted that, for specific limitations of the testing apparatus for the edge intelligent terminal CAN interface, reference may be made to the above limitations on the testing method for the edge intelligent terminal CAN interface, and details are not described herein again. All modules in the testing device of the edge intelligent terminal CAN interface CAN be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
According to another aspect of the present invention, a computer device is provided, and the computer device may be a server, and its internal structure is shown in fig. 4. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The database of the computer device is used for storing data. The network interface of the computer device is used for communicating with an external terminal through a network connection. When being executed by a processor, the computer program realizes the testing method of the edge intelligent terminal CAN interface.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A testing method of an edge intelligent terminal CAN interface comprises the following steps:
transmitting CAN bus data to a test medium by using a CAN interface of the edge intelligent terminal;
receiving and analyzing the CAN bus data by using the test medium, and converting the analyzed data into USB data;
and acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal or not according to the comparison result.
2. The method of claim 1, wherein the steps of receiving and parsing the CAN bus data using the test medium, and converting the parsed data into USB data comprise:
receiving the CAN bus data from a CAN interface of the edge intelligent terminal by using a CAN chip of the test medium and carrying out data analysis to obtain analyzed CAN bus data;
the CAN chip sends the analyzed CAN bus data to the MCU module of the test medium;
and converting the analyzed CAN bus data into USB data by using the MCU module.
3. The method of claim 2, wherein the step of converting the parsed CAN bus data into USB data using the MCU module comprises:
the MCU module is used for summarizing analyzed CAN bus data and arranging a data format;
sending the sorted data TO a UART TO USB module through a UART interface of the MCU module;
and converting the sorted data into USB data through a UART TO USB module.
4. The method of claim 1, wherein the step of obtaining the USB data from the test medium by using the USB interface of the edge intelligent terminal and comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal according to the comparison result comprises:
if the USB data is consistent with a preset result, confirming that a CAN interface of the edge intelligent terminal is normal;
if the USB data is inconsistent with a preset result, confirming that a CAN interface of the edge intelligent terminal is abnormal;
and the preset result is data obtained by analyzing the CAN bus data through a CAN bus protocol.
5. The method of claim 1, wherein sending CAN bus data to a test medium using a CAN interface of an edge smart terminal comprises:
the CAN interface connecting the edge intelligent terminal with the test medium is communicated with the CAN _ H signal through a CAN _ L signal;
and transmitting the CAN bus data from the edge intelligent terminal to a test medium by using the CAN _ L signal and the CAN _ H signal.
6. The method according to any one of claims 1-5, further comprising:
and adjusting the baud rates of the edge intelligent terminal and the test medium to be consistent in advance.
7. The method of claim 6, wherein the adjusted baud rates of the edge smart terminal and the test media are each 300000.
8. A testing device for an edge intelligent terminal (CAN) interface is characterized by comprising:
the transmitting module is used for transmitting CAN bus data to the testing medium by utilizing a CAN interface of the edge intelligent terminal;
the analysis and conversion module is used for receiving and analyzing the CAN bus data by using the test medium and converting the analyzed data into USB data;
and the comparison module is used for acquiring the USB data from the test medium by using the USB interface of the edge intelligent terminal, comparing the USB data with a preset result, and determining whether the CAN interface of the edge intelligent terminal is normal or not according to the comparison result.
9. A computer device, comprising:
at least one processor; and
a memory storing a computer program operable in the processor, the processor when executing the program performing the method of any of claims 1-7.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, is adapted to carry out the method of any one of claims 1 to 7.
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