CN114217990A - Distributed hardware remote communication system based on UDP protocol and control method thereof - Google Patents
Distributed hardware remote communication system based on UDP protocol and control method thereof Download PDFInfo
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- CN114217990A CN114217990A CN202111531436.XA CN202111531436A CN114217990A CN 114217990 A CN114217990 A CN 114217990A CN 202111531436 A CN202111531436 A CN 202111531436A CN 114217990 A CN114217990 A CN 114217990A
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
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- G06F9/547—Remote procedure calls [RPC]; Web services
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Abstract
The application provides a distributed hardware remote communication system based on a UDP protocol and a control method thereof, which belong to the technical field of data communication and specifically comprise a main control computer and a plurality of test devices in communication connection with the main control computer, wherein each test device is provided with one or a plurality of hardware board cards; the main control computer is used for sending an instruction to the testing equipment and is communicated with the testing equipment by adopting a UDP communication protocol; the test equipment is used for receiving and analyzing the instruction, and driving the hardware board card according to the analyzed instruction; the hardware board card is in communication connection with the tested product, and the testing equipment drives the hardware board card to test the tested product and receive feedback information of the tested product after receiving the instruction of the main control computer; the test equipment is used for receiving and analyzing the feedback information, converting the analyzed feedback information into data of a UDP protocol, and transmitting the data to the main control computer for analysis through a UDP channel. By the processing scheme, the application range of the test hardware is expanded.
Description
Technical Field
The application relates to the technical field of data communication, in particular to a distributed hardware remote communication system based on a UDP protocol and a control method thereof.
Background
In embedded system testing, as the use of communication bus classes increases, the hardware support required for testing also increases. The existing test hardware generally needs to be upgraded and modified, the modification cost is high, an operating system used at the equipment end does not support the existing new hardware drive, and the universality of the equipment is reduced.
A set of testing hardware is newly added to expand the existing testing environment, and generally, a single-machine version of testing software is mostly used for simplifying the operation of general testing equipment. The single-machine version test software has not strong expansibility enough, and the establishment of data communication among a plurality of hardware is limited to a certain extent.
Disclosure of Invention
In view of this, embodiments of the present application provide a UDP protocol-based distributed hardware remote communication control method, which implements the requirements on various types of hardware in the embedded system test by expanding the existing hardware driver, so that the embedded system is compatible with the original hardware board card. On the basis of not changing the existing hardware, a UDP communication protocol is added, a hardware driving layer is packaged, the testing requirement of the communication bus of the embedded product is changed, and the testing efficiency is improved.
In a first aspect, an embodiment of the present application provides a UDP-based distributed hardware remote communication system, where the system includes a main control computer and a plurality of test devices in communication connection with the main control computer, and each test device is configured with one or more hardware boards;
the main control computer is used for sending an instruction to the test equipment and is communicated with the test equipment by adopting a UDP communication protocol;
the test equipment is used for receiving and analyzing the instruction, and driving the hardware board card according to the analyzed instruction;
the hardware board card is in communication connection with a tested product, tests the tested product after being driven, receives feedback information of the tested product and transmits the feedback information to the test equipment;
the test equipment is used for receiving and analyzing the feedback information, converting the analyzed feedback information into data of a UDP protocol, and transmitting the data to the main control computer for analysis through a UDP channel.
According to a specific implementation manner of the embodiment of the application, the driver layer of the packaged hardware board card is packaged as an application program interface, and the application program interface is used for being called by the test equipment.
According to a specific implementation manner of the embodiment of the present application, the parameter information of the application program interface includes: the hardware board card comprises parameter information initialized by the hardware board card, parameter information loaded by configuration information, parameter information of a use channel and parameter information of data transceiving.
According to a specific implementation manner of the embodiment of the application, the test equipment end is provided with a data protocol module, and the data protocol module is used for formulating a communication protocol format according to a UDP communication protocol.
According to a specific implementation manner of the embodiment of the application, the communication protocol format includes a packet header, a hardware board card type, a hardware board card channel, a data message number, actual data and data verification.
According to a specific implementation manner of the embodiment of the application, the packet header comprises a sending information identifier and a receiving information identifier;
the hardware board card type adopts Arabic numerals to identify different hardware board cards in sequence;
the hardware board card channel number is used for prescribing that a specific channel of the hardware board card is used for communication according to the number of the hardware board card channels;
the data message number is used for specifying a specific MsgId sent or received by the hardware board card;
the actual data is used for stipulating the amount of actual transceiving data and real data;
the data verification is used for defining a verification mode, verifying the data information from the packet header to the actual data, and ensuring the reliability of the data.
According to a specific implementation manner of the embodiment of the application, the hardware board receives an instruction of the main control computer through an execution thread mechanism, and analyzes data by calling the data protocol module.
According to a specific implementation manner of the embodiment of the application, the analysis of the instruction/the feedback information by the measuring and setting device is completed through a program resident in a device end, the meaning of data is analyzed, the data is sent according to the byte meaning, and a UDP communication protocol is adopted for the data receiving and sending.
In a second aspect, an embodiment of the present application further provides a control method for a UDP-based distributed hardware remote communication system, where the UDP-based distributed hardware remote communication system according to any embodiment of the first aspect is adopted, and the control method includes the following steps:
s1, the main control computer sends test instructions to the plurality of test devices through a UDP communication protocol;
s2, the test equipment receives the test instruction, analyzes the test instruction, and drives the hardware board card according to the analyzed test instruction;
s3, the hardware board card is in communication connection with a tested product, and the tested product is tested after the hardware board card is driven;
s4, the hardware board receives feedback information of the tested product and transmits the feedback information to the test equipment;
and S5, the test equipment receives and analyzes the feedback information, and the analyzed feedback information is transmitted to the main control computer for analysis through the UDP communication protocol.
According to a specific implementation manner of the embodiment of the present application, the step S2 specifically includes the following steps:
s201, executing an operation of initializing the hardware board card by a program residing in the test equipment;
s202, executing a process of initializing a UDP communication socket, starting a thread waiting mechanism to jump to a step 203 if the network link is successful, otherwise, checking the network link;
s203, starting a thread mechanism, and circularly detecting UDP port data bound to the hardware board card, wherein the UDP port data is the test instruction sent by the main control computer;
s204, when the received data is detected, jumping to the step 205, otherwise, continuously waiting for detecting the data in the thread;
s205, judging the header of the data communication, if the judgment is correct, skipping to the step 206 to analyze the data, otherwise, returning to the detection, and continuing to wait for the data;
s206, executing data analysis operation, analyzing related data aiming at a communication protocol format formulated according to a UDP communication protocol, and converting the related data into an instruction which can be recognized by the hardware board card;
and S207, filling the analyzed instruction according to the packaged hardware drive application program interface, filling the instruction into corresponding parameters of the application program interface to execute the execution operation of the hardware board card, and driving the hardware board card to send data.
Advantageous effects
The distributed hardware remote communication system based on the UDP protocol in the embodiment of the application is compatible with the interaction of single hardware driving data at the test equipment end, realizes the compatibility of network UDP communication driving data interaction, expands the application range of test hardware, utilizes the flexible interaction capacity of the UDP protocol on the premise of meeting the data communication task, and provides richer means during testing and production.
The control method provided by the invention can be widely applied to the test of the embedded system, is positioned in a program residing at an equipment end, is not influenced by a test platform and an operating system, and has excellent inheritance, expansibility and portability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a UDP-based distributed hardware telecommunication system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling a UDP-based distributed hardware telecommunication system according to an embodiment of the present invention.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
In a first aspect, an embodiment of the present application provides a UDP-based distributed hardware remote communication system, which specifically includes a main control computer and a plurality of test devices communicatively connected to the main control computer, where each test device is configured with a hardware board.
Specifically, the main control computer is used for sending an instruction to the test equipment, the main control computer and the test equipment are communicated by adopting a UDP communication protocol, the main control computer can be connected to a plurality of test equipment terminals through the switchboard, and the test equipment terminals are powered on to carry out a series of initialization operations on the hardware board card so as to construct a UDP data channel. The testing equipment is used for receiving and analyzing the instruction sent by the main control computer, and driving the hardware board card according to the analyzed instruction; the hardware board card is in communication connection with a tested product, tests the tested product after being driven, receives feedback information of the tested product and transmits the feedback information to the test equipment; the test equipment is used for receiving and analyzing the feedback information, converting the analyzed feedback information into data of a UDP protocol, and transmitting the data to the main control computer for analysis through a UDP channel.
Before the system is used for testing, a driver layer of a hardware board needs to be encapsulated, specifically, the driver layer of the hardware board is encapsulated by calling an SDK (Software Development Kit) of a hardware manufacturer, so that basic functions such as initialization of hardware, loading of configuration information of the hardware board, sending and receiving of hardware data and the like are mainly realized, and the basic functions are encapsulated into an API (Application Programming Interface) and provided for an upper Application program to call. The API comprises various parameter information such as hardware initialization, configuration information loading, channel use, data receiving and transmitting and the like.
Furthermore, a data protocol module is required to be formulated at the test equipment end, the data protocol module is used for formulating a communication protocol format meeting the specification according to a UDP communication protocol, and the communication protocol format includes a packet header, a hardware board type, a hardware board channel, a data message number, actual data and data verification.
In one embodiment, the packet header includes a sending information identifier and a receiving information identifier, for example, a customized 0xFE identifier is used to represent the sent information, and a 0xFD identifier represents the received information.
The hardware board type adopts Arabic numerals to identify different hardware boards in sequence, for example, 1394, AFDX/FCAE/1533 and other types of hardware boards, and 1 serial number is added when a new hardware board is added.
The hardware board channel number is used for specifying the specific channel of the hardware board for communication according to the number of the hardware board channels, and if the number of the board channels is too large, the specific channel of the board is specified for communication.
And the data message number is used for specifying the specific MsgId sent or received by the hardware board, and filtering out the unnecessary message number.
The actual data is used to specify the amount of actually transmitted and received data, and the real data.
The data verification is used for defining a verification mode, verifying data information from the packet header to actual data, and ensuring the reliability of the data.
Furthermore, the hardware board receives an instruction of the main control computer through an execution thread mechanism, and analyzes data by calling the data protocol module. Specifically, after the hardware board is powered on and initialized, a thread function is executed, an instruction of the main control computer is waited, and after the instruction is received, the data is effectively analyzed by calling a data protocol module. And driving the corresponding hardware board card according to the instruction meaning, and sending a related command to perform bus test on the tested product. And the tested product executes corresponding operation after receiving the command, the operation result is fed back to the hardware board card, and the hardware board card converts the result into data in a UDP communication protocol format and feeds back the data to the main control computer.
Furthermore, the main control computer sends UDP data through a network protocol, the analysis of the instruction/feedback information by the testing equipment is completed through a program resident in the equipment end, the meaning of the data is analyzed, the data is sent according to the byte meaning, and the UDP communication protocol is adopted for the sending and receiving of the data.
In a second aspect, an embodiment of the present application further provides a control method for a UDP protocol-based distributed hardware remote communication system, where the UDP protocol-based distributed hardware remote communication system according to any embodiment of the first aspect is adopted, and referring to fig. 2, a main flow of the control method in this embodiment is described, where the main flow mainly includes the following steps:
and S1, the main control computer sends a test instruction to the plurality of test devices through a UDP communication protocol.
And S2, the test equipment receives the test instruction and analyzes the test instruction, and the hardware board card is driven according to the analyzed test instruction. The method specifically comprises the following steps:
s200, electrifying the test equipment, starting service by a program resident in the test equipment, and normally operating;
s201, executing an operation of initializing a hardware board card by a program residing in test equipment, and ensuring that the hardware is installed correctly, if a fault occurs, the hardware needs to be detected automatically;
s202, executing a process of initializing a UDP communication socket, starting a thread waiting mechanism to jump to a step 203 if the network link is successful, otherwise, checking the network link;
s203, starting a thread mechanism, circularly detecting UDP port data bound to the hardware board card, wherein the UDP port data is a test instruction sent by the main control computer, and in the process, in order to prevent the processing of the data from causing program blocking and untimely data receiving, the thread mechanism is specially adopted for operation;
s204, when the received data is detected, jumping to the step 205, otherwise, continuously waiting for detecting the data in the thread;
s205, judging the header of the data communication, if the judgment is correct, skipping to the step 206 to analyze the data, otherwise, returning to the detection, and continuing to wait for the data;
s206, executing data analysis operation, and carrying out analysis on related data aiming at a communication protocol format formulated according to a UDP communication protocol, wherein the analysis comprises analyzing a packet header, a hardware type, a hardware channel, a data message number, actual data, a data check board and other data information, and converting the data information into an instruction which can be recognized by a hardware board card;
and S207, filling the analyzed instruction, namely the data analyzed by the UDP, according to a packaged hardware driving Application Program Interface (API), filling the data into corresponding parameters of the API to execute the execution operation of the hardware board card, driving the hardware board card to transmit the data, and further testing the bus protocol of the tested product, wherein the tested product is an embedded product.
And S3, the hardware board card is in communication connection with the tested product, the tested product is tested after the hardware board card is driven, and the embedded product makes corresponding feedback information for the instruction after the hardware board card sends the instruction and executes the instruction successfully.
S4, the hardware board receives feedback information of the tested product and transmits the feedback information to the test equipment, namely the hardware executes a feedback instruction;
and S5, the test equipment receives and analyzes the feedback information, and the analyzed feedback information is transmitted to the main control computer for analysis through the UDP communication protocol. The method specifically comprises the following steps:
s501, if the test equipment fails to receive the feedback information, namely instruction execution fails, generating corresponding error information according to an error code value, and reversely assembling the corresponding error information according to a preset UDP communication protocol format;
s502, if the test equipment successfully receives the feedback information, namely the instruction is successfully executed, reversely assembling the data information according to a preset UDP communication protocol format;
s503, transmitting the assembled feedback information to the main control computer through a UDP communication protocol, after the transmission is finished, continuously returning to the thread mechanism to detect the next data, and after the program is normally started, circulating in the thread until the application program exits.
The system provided by the invention mainly initiates a UDP request at a main control computer end, is connected to a plurality of test equipment terminals, the test equipment terminals are electrified to carry out a series of initialization operations of hardware, a UDP data channel is constructed, commands of the main control computer are received, the hardware is controlled, the system test of an embedded product by a hardware bus is realized, the test feedback result is collected by the hardware and is forwarded to the main control computer, and a series of control tasks are completed.
The invention relates to a UDP-based distributed hardware board card remote communication control method, which expands the existing test hardware, adds UDP, and completes data interaction between a plurality of test devices and a plurality of hardware board cards in a network mode. The hardware board card is combined with network debugging, and data interaction between the hardware board card and system software of the main control computer is supported. The embedded test software is divided into an application layer end, a middle layer and a drive layer, the embedded test software resides in the middle layer, encapsulates the drive layer of the hardware board card, defines a UDP transmission protocol and communicates with the application layer. When the main control computer uses the hardware board card, the main control computer is irrelevant to an operating system used by the hardware board card and the physical position of the hardware board card, and has excellent inheritance, expansibility and portability.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A distributed hardware remote communication system based on a UDP protocol is characterized in that the system comprises a main control computer and a plurality of test devices in communication connection with the main control computer, wherein each test device is provided with one or a plurality of hardware board cards;
the main control computer is used for sending an instruction to the test equipment and is communicated with the test equipment by adopting a UDP communication protocol;
the test equipment is used for receiving and analyzing the instruction, and driving the hardware board card according to the analyzed instruction;
the hardware board card is in communication connection with a tested product, tests the tested product after being driven, receives feedback information of the tested product and transmits the feedback information to the test equipment;
the test equipment is used for receiving and analyzing the feedback information, converting the analyzed feedback information into data of a UDP protocol, and transmitting the data to the main control computer for analysis through a UDP channel.
2. The UDP-based distributed hardware telecommunication system of claim 1, wherein a driver layer of the encapsulated hardware board is encapsulated as an application program interface, the application program interface being configured to be invoked by the test device.
3. The UDP-based distributed hardware telecommunication system of claim 2, wherein the parameter information of the application program interface includes: the hardware board card comprises parameter information initialized by the hardware board card, parameter information loaded by configuration information, parameter information of a use channel and parameter information of data transceiving.
4. The distributed hardware telecommunication system according to claim 1, wherein the testing device is provided with a data protocol module, and the data protocol module is configured to formulate a communication protocol format according to a UDP communication protocol.
5. The UDP-based distributed hardware telecommunication system of claim 4, wherein the communication protocol format includes a packet header, a hardware board type, a hardware board channel, a data message number, actual data, and a data check.
6. The UDP-based protocol distributed hardware telecommunication system of claim 5, wherein the packet header includes a sending information id and a receiving information id;
the hardware board card type adopts Arabic numerals to identify different hardware board cards in sequence;
the hardware board card channel number is used for prescribing that a specific channel of the hardware board card is used for communication according to the number of the hardware board card channels;
the data message number is used for specifying a specific MsgId sent or received by the hardware board card;
the actual data is used for stipulating the amount of actual transceiving data and real data;
the data verification is used for defining a verification mode, verifying the data information from the packet header to the actual data, and ensuring the reliability of the data.
7. The distributed hardware telecommunication system according to claim 4, wherein the hardware board receives the instruction from the host computer through a thread executing mechanism, and analyzes the data by calling the data protocol module.
8. The distributed hardware telecommunication system according to claim 1, wherein the analysis of the command/the feedback information by the instrumentation device is performed by a program resident in the device, the meaning of the data is analyzed, the data is transmitted according to the byte meaning, and the UDP communication protocol is used for the transmission and reception of the data.
9. A control method for a UDP-based distributed hardware telecommunication system, which employs the UDP-based distributed hardware telecommunication system according to any one of claims 1 to 8, the control method comprising the steps of:
s1, the main control computer sends test instructions to the plurality of test devices through a UDP communication protocol;
s2, the test equipment receives the test instruction, analyzes the test instruction, and drives the hardware board card according to the analyzed test instruction;
s3, the hardware board card is in communication connection with a tested product, and the tested product is tested after the hardware board card is driven;
s4, the hardware board receives feedback information of the tested product and transmits the feedback information to the test equipment;
and S5, the test equipment receives and analyzes the feedback information, and the analyzed feedback information is transmitted to the main control computer for analysis through the UDP communication protocol.
10. The UDP protocol based distributed hardware telecommunication system control method of claim 9, wherein the step S2 specifically includes the following steps:
s201, executing an operation of initializing the hardware board card by a program residing in the test equipment;
s202, executing a process of initializing a UDP communication socket, starting a thread waiting mechanism to jump to a step 203 if the network link is successful, otherwise, checking the network link;
s203, starting a thread mechanism, and circularly detecting UDP port data bound to the hardware board card, wherein the UDP port data is the test instruction sent by the main control computer;
s204, when the received data is detected, jumping to the step 205, otherwise, continuously waiting for detecting the data in the thread;
s205, judging the header of the data communication, if the judgment is correct, skipping to the step 206 to analyze the data, otherwise, returning to the detection, and continuing to wait for the data;
s206, executing data analysis operation, analyzing related data aiming at a communication protocol format formulated according to a UDP communication protocol, and converting the related data into an instruction which can be recognized by the hardware board card;
and S207, filling the analyzed instruction according to the packaged hardware drive application program interface, filling the instruction into corresponding parameters of the application program interface to execute the execution operation of the hardware board card, and driving the hardware board card to send data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114553977A (en) * | 2022-04-25 | 2022-05-27 | 同日云联信息技术(苏州)有限公司 | Communication system of production equipment and upper system based on socket communication |
| CN115208795A (en) * | 2022-06-30 | 2022-10-18 | 中车青岛四方车辆研究所有限公司 | Interface test method and device of Ethernet control equipment |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114553977A (en) * | 2022-04-25 | 2022-05-27 | 同日云联信息技术(苏州)有限公司 | Communication system of production equipment and upper system based on socket communication |
| CN114553977B (en) * | 2022-04-25 | 2023-06-20 | 同日云联信息技术(苏州)有限公司 | Communication system of production equipment and upper system based on socket communication |
| CN115208795A (en) * | 2022-06-30 | 2022-10-18 | 中车青岛四方车辆研究所有限公司 | Interface test method and device of Ethernet control equipment |
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