CN115865133A - Carrier communication testing device and testing method - Google Patents
Carrier communication testing device and testing method Download PDFInfo
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- CN115865133A CN115865133A CN202211516742.0A CN202211516742A CN115865133A CN 115865133 A CN115865133 A CN 115865133A CN 202211516742 A CN202211516742 A CN 202211516742A CN 115865133 A CN115865133 A CN 115865133A
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Abstract
The invention provides a carrier communication testing device, comprising: the system comprises at least two groups of carrier communication modules, at least two groups of carrier communication modules and at least two groups of communication modules, wherein one group of carrier communication modules in the at least two groups of carrier communication modules is a carrier communication module host, and the other groups of carrier communication modules except the carrier communication module host in the at least two groups of carrier communication modules are carrier communication module slaves; a carrier power line; at least two groups of upper computer; the carrier communication module host is used for sending a first carrier test signal to each carrier communication module slave through a carrier power line and receiving a second carrier test signal sent by each carrier communication module slave to the carrier communication module host through the carrier power line. The carrier communication data is visually displayed by transmitting the first carrier test signal and the second carrier test signal and matching with an upper computer, and when no communication equipment for detection exists, the carrier communication module can be detected by using a simpler method.
Description
Technical Field
The present disclosure relates to the field of carrier communication testing technologies, and in particular, to a carrier communication testing apparatus and a carrier communication testing method.
Background
At present, whether the carrier communication module works normally has no other test means except that the carrier communication module passes the verification of the joint test actual equipment. Meanwhile, the problem of port abrasion also exists when the actual equipment is used for repeated testing. RS422 and RS485 belong to serial port communication, the general situation is stable, but in an industrial environment, equipment contact ports are repeatedly plugged and pulled, the mechanical life is shortened, the risk of serial port burnout is set, and if a large number of devices are subjected to combined test in the test process, the risk exists and resource waste is caused; in the case that the distance between a plurality of devices is long, higher requirements are put on field wiring and device joint test cost, and in order to solve the problem, a simple device is needed for testing the working condition of the carrier communication module.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a carrier communication testing apparatus and a testing method, so as to achieve the purpose of detecting a carrier communication module by using a simpler method when there is no communication device for detection.
The embodiment of the specification provides the following technical scheme:
a carrier communication test apparatus comprising:
the system comprises at least two groups of carrier communication modules, at least two groups of carrier communication modules and at least two groups of communication modules, wherein one group of carrier communication modules in the at least two groups of carrier communication modules is a carrier communication module host, and the other groups of carrier communication modules except the carrier communication module host in the at least two groups of carrier communication modules are carrier communication module slaves;
the carrier power line is used for supplying power to the at least two groups of carrier communication modules through a direct-current power supply;
each carrier communication module of the at least two groups of carrier communication modules is connected with one upper computer, wherein the upper computer connected with the carrier communication module host is used for sending a first carrier test signal to the carrier communication module host, and the upper computer connected with the carrier communication module slave is used for sending a second carrier test signal to the carrier communication module slave;
the carrier communication module host is used for sending a first carrier test signal to each carrier communication module slave through a carrier power line and receiving a second carrier test signal sent by each carrier communication module slave to the carrier communication module host through the carrier power line;
each carrier communication module slave is used for sending a second carrier test signal to the carrier communication module host through a carrier power line and receiving a first carrier test signal sent to the carrier communication module slave by the carrier communication module host through the carrier power line, wherein the receiving condition of the carrier communication module host to the second carrier test signal is used for testing the communication characteristic of carrier communication, and the receiving condition of the carrier communication module slave to the first carrier test signal is used for testing the communication characteristic of carrier communication.
Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:
the device for testing the communication characteristics of the carrier communication by mutually transmitting the carrier signals through the plurality of groups of carrier communication testing modules is designed, the carrier communication data are visually displayed by transmitting the first carrier testing signals and the second carrier testing signals and matching with an upper computer, and when no communication equipment for detection exists, the carrier communication modules can be detected by using a simpler method.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required 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 without creative efforts.
Fig. 1 is a diagram illustrating an overall configuration of a carrier communication test apparatus 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 embodiments of the present application are described by specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure of the present application. 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 obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to 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 and 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.
At present, no other test means is available in the market except that the carrier communication unit is verified to be normal through the joint test actual equipment. Based on the condition, the invention uses two serial port debugging tools of a full-duplex debugging tool and a half-duplex debugging tool and an upper computer to test, can simultaneously observe whether transmission data of the full-duplex signal and the half-duplex signal are interfered, and has the characteristics of visibility and convenient test.
The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.
As shown in fig. 1, a carrier test apparatus according to an embodiment of the present invention includes a plurality of carrier communication modules, and the carrier test apparatus verifies carrier signals of the carrier communication modules. Specifically, the carrier communication test module of the carrier test device is connected in a host and slave mode, and the host and the slave can receive and send carrier test signals mutually. Any one of the carrier communication modules may be designated as a master or a slave. The host and the slave are self-organized to support one-to-one or one-to-many transmission, one host can be configured with 20 slave machines at most, and the communication distance of a power line can reach five hundred meters. The carrier testing device is powered by a direct current power supply.
The carrier test device includes: the device comprises a carrier communication module, a carrier power line, an upper computer and a carrier signal debugging tool.
The carrier signal debugging tool comprises a full-duplex debugging unit for transmitting full-duplex carrier signals and a half-duplex debugging tool unit for transmitting half-duplex carrier signals. The full-duplex carrier signal and the half-duplex carrier signal have respective serial ports and channels which are mutually independent for transmission without interference. The carrier signal debugging tool can be realized by adopting the existing universal serial port RS485 to USB and the serial port RS422 to USB, and the direct communication between the equipment and the upper computer is realized. In some embodiments, the full-duplex debugging unit is an RS422 serial port debugging tool. In some embodiments, the half-duplex debugging unit is an RS485 serial port debugging tool. In other embodiments, the half-duplex debugging unit may also be an RS232 serial port debugging tool.
The carrier power line is a common power line and has no special requirement. That is, the carrier power line is a wire actually supplying power to the device or a wire supplying power to the testing tool, and in some embodiments, the carrier power line may be a pure copper wire with a diameter of 3mm, a twisted pair, or the like.
The upper computer is a common industrial computer. The upper computer can observe the transmission data of the carrier signal, and can check the transmission real-time performance of the system, so that the system is visual and visual.
In some embodiments, the dc power supply is a 28V dc power supply.
In some embodiments, a master-slave dial switch is arranged on an upper computer of the carrier communication testing device, and any one of the carrier communication modules is set as a carrier communication module master or a carrier communication module slave by toggling the master-slave dial switch.
The carrier testing device provided by the embodiment of the invention can simultaneously transmit full-duplex carrier signals and half-duplex carrier signals through the power carrier technology when the carrier power line normally supplies power to equipment, the data are transmitted independently, the signals are not interfered with each other, the data are transmitted in a transparent way and in real time, and finally the carrier testing signals are displayed on a visual interface of an upper computer.
The method for testing by using the carrier communication testing device comprises the following steps:
firstly, according to the requirement of the number of slave machines (within 20), a carrier communication module, a duplex debugging unit, a half-duplex debugging unit, a direct-current power supply, an upper computer and a carrier power line are connected together according to a connection schematic diagram of fig. 1.
The carrier communication module host and the carrier communication module slave are selected through the dial switch. It should be noted that only one carrier communication module host can be provided to one carrier communication test apparatus. The longest carrier power line can be five hundred meters, and can be properly reduced according to actual needs. And meanwhile, attention needs to be paid to forbidding power on when wiring is carried out. In the step, the circuits such as each module and a direct current power supply are connected without needing to be electrified.
In some embodiments, one carrier communication module host and a plurality of carrier communication module slaves can be used for one-to-many testing, so that resource allocation is optimized, and testing efficiency is improved.
And secondly, detecting the connecting line and each device, starting the direct current power supply after no short circuit or open circuit condition exists, and starting the host computer of the carrier communication module and the slave computer of the carrier communication module after waiting for several seconds. The method comprises the following steps of detecting whether wiring in the previous step is wrong or not, supplying power to equipment, and achieving the purpose of well checking before electrifying to avoid the phenomenon of short circuit and open circuit and influence on the test progress and equipment safety.
And thirdly, detecting a half-duplex carrier signal.
The method comprises the steps of selecting a half-duplex serial port through a serial port transmission assistant of an upper computer of a carrier communication module host, sending a first carrier test signal of a half-duplex carrier signal, observing whether the upper computer of a carrier communication module slave receives the first carrier test signal or not if the first carrier test signal is transmitted for a period of time, and observing whether a data error code exists or not through a visual interface of the upper computer.
Through the operation, the carrier communication module host sends the first carrier test signal of the half-duplex carrier signal, and the carrier communication module slave receives the operation of the first carrier test signal of the half-duplex carrier signal, so that whether the carrier communication unit of the carrier communication module slave works normally is verified.
On the contrary, a second carrier test signal of the half-duplex carrier signal is sent through an upper computer of the half-duplex carrier signal slave machine, such as a half-duplex slave machine 1, a half-duplex slave machine 2 and the like. And observing whether an upper computer of the half-duplex carrier signal host receives the second carrier test signal, transmitting for a period of time, and observing whether a data error code exists. The operation that the half-duplex carrier signal slave machine sends the second carrier test signal and the half-duplex carrier signal host machine receives the second carrier test signal is realized, and whether the carrier communication unit of the carrier communication module host machine works normally is verified. It should be noted that half-duplex carrier signals cannot be communicated between slaves in half-duplex carrier signal transmission.
The main purpose of the step is to separately test whether the half-duplex carrier signal is normal in communication or not and whether the data transparent transmission characteristic of the carrier signal is realized or not. A section of detection code is sent from an upper computer of one carrier communication test module, after the detection code passes through a circuit, whether corresponding carrier signals are received or not and whether messy codes and other error signals exist or not are observed on an upper computer of the other carrier communication test module, and whether errors exist or not is observed. Specifically, the half-duplex carrier signal transmission allows the master machine and the slave machine to communicate, and the slave machine cannot communicate.
And fourthly, detecting full duplex communication.
The method comprises the steps of selecting a full-duplex serial port through a serial port transmission assistant of an upper computer of a host of a carrier communication module, sending a first carrier test signal of a full-duplex carrier signal, observing whether the upper computer of a slave of the carrier communication module receives the first carrier test signal of the full-duplex carrier signal or not, transmitting for a period of time, and observing whether a data error code exists or not through a visual interface of the upper computer.
Through the operation, the carrier communication module host sends the first carrier test signal of the full-duplex carrier signal, and the carrier communication module slave receives the first carrier test signal of the full-duplex carrier signal, so that whether the carrier communication unit of the carrier communication module slave works normally is verified.
On the contrary, the second carrier test signal of the full-duplex carrier signal, such as "full-duplex slave 1" or "full-duplex slave 2", is sent by the upper computer of the full-duplex carrier signal slave. And observing whether an upper computer of the full-duplex carrier signal host receives a second carrier test signal of the full-duplex carrier signal, transmitting for a period of time, and observing whether a data error code exists. The operation that the full-duplex carrier signal slave machine sends the second carrier test signal of the full-duplex carrier signal and the full-duplex carrier signal host machine receives the second carrier test signal of the full-duplex carrier signal is realized, and whether the carrier communication unit of the carrier communication module host machine works normally is verified. It should be noted that in full duplex carrier signal transmission, full duplex carrier signals may also be communicated between slaves.
The main purpose of the step is to separately test whether the full duplex carrier signal is normally communicated or not and whether the data transparent transmission characteristic of the carrier signal is realized or not. And sending a section of detection code from the upper computer of one carrier communication test module, and after passing through a line, observing whether a corresponding carrier signal is received and whether a messy code and other error signals exist on the upper computer of the other carrier communication test module. In particular, full duplex carrier signal transmission allows for communication between a master and a slave, as well as between a slave and a slave. That is to say, all the carrier communication modules connected to the carrier power line can communicate, and any one upper computer can observe the carrier test signals of other carrier communication units.
It should be noted that the third step and the fourth step can be interchanged, that is, there is no priority setting for the full-duplex communication and the half-duplex communication.
And fifthly, simultaneously executing the operation of the third step and the operation of the fourth step, simultaneously observing the half-duplex carrier test signal and the full-duplex carrier test signal through an upper computer, and observing whether an interference error code occurs.
The main purpose of this step is to verify whether the half-duplex carrier test signal and the full-duplex carrier test signal do not interfere with each other. And simultaneously sending a half-duplex carrier signal and a full-duplex carrier signal through an upper computer, observing whether a corresponding data receiving end receives the carrier signal or not, and observing whether an interference error code exists or not. When the half-duplex carrier signal and the full-duplex carrier signal are transmitted on the power line at the same time, the upper computer at the data receiving end can judge whether the two carrier test signals interfere with each other by confirming whether the transmitted check code is wrong.
And sixthly, sending the carrier test signal within a certain time, and calculating a first time difference between a time point when the host of the carrier communication module receives the second carrier test signal and a time point when the slave of the carrier communication module sends the second carrier test signal, wherein the first time difference is used for testing the real-time transmission characteristic of the carrier communication.
Similarly, a carrier test signal is sent within a certain time, a first time difference between a time point when the carrier communication module host receives the first carrier test signal and a time point when the carrier communication module slave sends the first carrier test signal is calculated, and the second time difference is used for testing the real-time transmission characteristic of the carrier communication.
In some embodiments, the first time and the second time are set to within 100 ms.
If the steps are all free from abnormal phenomena, the communication characteristics (data transmission characteristics, data non-interference characteristics and real-time transmission characteristics) of the carrier communication unit can be verified through the carrier communication testing device.
The carrier communication test method of the embodiment of the invention has the following beneficial effects:
the device for detecting the transmission of the carrier test signal by mutually transmitting the carrier signals by using the plurality of groups of carrier communication modules is designed, can detect the full-duplex carrier signals and the half-duplex carrier signals, and is visually displayed through an upper computer; when no communication equipment for detection exists, the carrier communication unit can be detected by using a simpler method, so that the product design period of the carrier communication unit is shortened, and the product research and development efficiency is improved; the communication characteristics such as the test data transparent transmission characteristic, the data non-interference characteristic and the real-time transmission characteristic are realized, and a test technical basis is laid for the research and development of the carrier communication unit and the subsequent system upgrade.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the method embodiments described later, since they correspond to the system, the description is simple, and for the relevant points, reference may be made to the partial description of the system embodiments.
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 carrier communication test apparatus, comprising:
the system comprises at least two groups of carrier communication modules, at least two groups of carrier communication modules and at least two groups of communication modules, wherein one group of carrier communication modules in the at least two groups of carrier communication modules is a carrier communication module host, and the other groups of carrier communication modules except the carrier communication module host in the at least two groups of carrier communication modules are carrier communication module slaves;
the carrier power line is used for supplying power to the at least two groups of carrier communication modules through a direct current power supply;
each group of carrier communication modules in the at least two groups of carrier communication modules is connected with one upper computer, wherein the upper computer connected with the carrier communication module host is used for sending a first carrier test signal to the carrier communication module host, and the upper computer connected with the carrier communication module slave is used for sending a second carrier test signal to the carrier communication module slave;
the carrier communication module host is configured to send the first carrier test signal to each of the carrier communication module slaves through the carrier power line, and receive the second carrier test signal sent by each of the carrier communication module slaves to the carrier communication module host through the carrier power line;
each carrier communication module slave is configured to send the second carrier test signal to the carrier communication module host through the carrier power line, and receive the first carrier test signal sent by the carrier communication module host to the carrier communication module slave through the carrier power line, where a reception condition of the carrier communication module host for the second carrier test signal is used to test a communication characteristic of carrier communication, and a reception condition of the carrier communication module slave for the first carrier test signal is used to test a communication characteristic of carrier communication.
2. The carrier communication test device according to claim 1,
the upper computer is connected with the host computer of the carrier communication module and is also used for calculating a first time difference between the time point when the host computer of the carrier communication module receives the second carrier test signal and the time point when the slave computer of the carrier communication module sends the second carrier test signal, and the first time difference is used for testing the real-time transmission characteristic of carrier communication;
the upper computer is connected with the carrier communication module slave computer and is further used for calculating a second time difference between a time point when the carrier communication module slave computer receives the first carrier test signal and a time point when the carrier communication module host computer sends the first carrier test signal, and the second time difference is used for testing the real-time transmission characteristics of carrier communication.
3. The carrier communication test device according to claim 1,
the carrier communication module host is configured to send the first carrier test signal including a full-duplex carrier signal to each of the carrier communication module slaves through the carrier power line, and receive the second carrier test signal including the full-duplex carrier signal sent by each of the carrier communication module slaves through the carrier power line;
each carrier communication module slave is configured to send the second carrier test signal including the full-duplex carrier signal to the carrier communication module host through the carrier power line, and receive the first carrier test signal including the full-duplex carrier signal sent by the carrier communication module host through the carrier power line; alternatively, the first and second electrodes may be,
the carrier communication module host is configured to send the first carrier test signal including a half-duplex carrier signal to each of the carrier communication module slaves through the carrier power line, and receive the second carrier test signal including the half-duplex carrier signal sent by each of the carrier communication module slaves through the carrier power line;
each carrier communication module slave is configured to send the second carrier test signal including the half-duplex carrier signal to the carrier communication module host through the carrier power line, and receive the first carrier test signal including the half-duplex carrier signal sent by the carrier communication module host through the carrier power line, where a reception condition of the second carrier test signal by the carrier communication module host is used to test a data transparent transmission characteristic of carrier communication, and a reception condition of the first carrier test signal by the carrier communication module slave is used to test a data transparent transmission characteristic of carrier communication.
4. The carrier communication test device according to claim 1,
the carrier communication module host is configured to send the first carrier test signal including a full-duplex carrier signal and a half-duplex carrier signal to each of the carrier communication module slaves through the carrier power line, and receive the second carrier test signal including the full-duplex carrier signal and the half-duplex carrier signal sent by each of the carrier communication module slaves through the carrier power line;
each carrier communication module slave is configured to send the second carrier test signal including the full-duplex carrier signal and the half-duplex carrier signal to the carrier communication module host through the carrier power line, and receive the first carrier test signal including the full-duplex carrier signal and the half-duplex carrier signal sent by the carrier communication module host through the carrier power line, where a reception condition of the carrier communication module host to the second carrier test signal is used to test a data mutual noninterference characteristic of carrier communication, and a reception condition of the carrier communication module slave to the first carrier test signal is used to test a data mutual noninterference characteristic of carrier communication.
5. A carrier communication test arrangement as claimed in claim 3, wherein the full duplex carrier signal comprises an RS422 signal.
6. A carrier communication test arrangement as claimed in claim 3, characterized in that the half-duplex carrier signal comprises an RS485 signal.
7. The carrier communication test device according to claims 1 to 6,
each upper computer is also used for receiving and displaying the first carrier test signal or the second carrier test signal received by the carrier communication module connected with the upper computer.
8. The carrier communication test device according to claims 1 to 6, further comprising:
at least two sets of carrier signal debugging tools, every carrier signal debugging tool of group sets up and is corresponding the connection between host computer and the carrier communication module, every carrier signal debugging tool of group is used for establishing communication according to the communication protocol that the carrier test signal corresponds and connecting between host computer and the carrier communication module, the carrier test signal include first carrier test signal with second carrier test signal.
9. A method for testing a carrier communication test apparatus according to any one of claims 1 to 8, comprising:
sending a first carrier test signal to the carrier communication module host through the upper computer connected with the carrier communication module host;
based on the carrier communication module host, sending the first carrier test signal to each carrier communication module slave through the carrier power line, and receiving the second carrier test signal sent by each carrier communication module slave to the carrier communication module host through the carrier power line;
sending a second carrier test signal to the carrier communication module slave machine through the upper computer connected with the carrier communication module slave machine;
based on each carrier communication module slave, sending the second carrier test signal to the carrier communication module host through the carrier power line, and receiving the first carrier test signal sent to the carrier communication module slave by the carrier communication module host through the carrier power line;
and testing the communication characteristics of the carrier communication according to the receiving condition of the carrier communication module host computer to the second carrier test signal and the receiving condition of the carrier communication module slave computer to the first carrier test signal.
10. The test method of claim 9, further comprising:
and calculating a first time difference between a time point when the host of the carrier communication module receives the second carrier test signal and a time point when the slave of the carrier communication module sends the second carrier test signal, calculating a second time difference between a time point when the slave of the carrier communication module receives the first carrier test signal and a time point when the host of the carrier communication module sends the first carrier test signal, and testing the real-time transmission characteristic of carrier communication according to the first time difference and the second time difference.
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| CN116318263A (en) * | 2023-04-06 | 2023-06-23 | 青岛鼎信通讯股份有限公司 | Medium-voltage carrier module-based MAC layer network transparent transmission method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116318263A (en) * | 2023-04-06 | 2023-06-23 | 青岛鼎信通讯股份有限公司 | Medium-voltage carrier module-based MAC layer network transparent transmission method |
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