Wide-voltage high-power mixed signal carrier communication testing device

Abstract

The invention provides a wide-voltage high-power mixed signal carrier communication testing device, which belongs to the technical field of carrier communication testing, and specifically comprises a carrier module host and a carrier module slave, the carrier module host is electrically connected with a power line through a power line carrier communication interface, and the carrier module slave is electrically connected with the power line through a power line carrier communication interface. The carrier module slave is electrically connected with a power line through a power line carrier communication interface, the carrier module host is connected with the upper computer through a communication cable, the carrier module slave is connected with the upper computer through a communication cable, and the carrier module host and the carrier module slave are connected with different upper computers. The upper computer is used for simulating communication data to be sent to the carrier module host or the carrier module slave, and the upper computer is used for receiving the communication data output by the carrier module host or the carrier module slave. Through the processing scheme provided by the invention, the portability of detecting the carrier communication module is improved.

Description

Technical Field

[0001] The present application relates to the field of carrier communication testing, and in particular to a mixed-signal carrier communication testing device for wide voltage and high power. Background Art

[0002] Due to the wide voltage and high power characteristics of the power grid, it is relatively complicated to build an on-site test environment. When there is no communication equipment for detection, the detection of the carrier communication module cannot be completed quickly. Summary of the invention

[0003] In view of this, the present application provides a mixed-signal carrier communication test device for wide voltage and high power, which solves the problems in the prior art and improves the portability of detecting carrier communication modules.

[0004] The present application provides a wide voltage and high power mixed signal carrier communication test device adopts the following technical solution:

[0005] A mixed signal carrier communication test device for wide voltage and high power, comprising a carrier module host and a carrier module slave, wherein the carrier module host is electrically connected to a power line via a power carrier communication interface, and the carrier module slave is electrically connected to the power line via a power carrier communication interface, the carrier module host is connected to a host computer via a communication cable, and the carrier module slave is connected to a host computer via a communication cable, the carrier module host and the carrier module slave are connected to different host computers, the host computer is used to simulate communication data and send it to the carrier module host or the carrier module slave, and the host computer is used to receive communication data output by the carrier module host or the carrier module slave.

[0006] Optionally, the mixed-signal carrier communication test device for wide voltage and high power includes a plurality of carrier module slaves, and each of the carrier module slaves is connected to one of the host computers.

[0007] Optionally, the communication cable includes an RS485 serial communication line, and the host computer selects the RS485 serial port to simulate RS485 communication data through the computer-side serial port transmission assistant, and the host computer connected to the carrier module host sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module slave, and the host computer connected to the carrier module slave sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module host.

[0008] Optionally, the carrier module host and the carrier module slave are connected to a host computer via an RS485 debugging tool, the carrier module host and the carrier module are provided with a 485A+ interface, a 485B- interface and a GND interface connected to the RS485 debugging tool, and the host computer is connected to the RS485 debugging tool via a USB interface.

[0009] Optionally, the communication cable includes an RJ45 network cable, and the host computer configures the IP addresses of the carrier module host, the carrier module slave and each host computer through the Ethernet test software assistant, and connects the carrier module host, the carrier module slave and each host computer in the same local area network. The host computer connected to the carrier module host sends data through the Ethernet test software assistant, and receives data sent from the host computer connected to the carrier module slave through the Ethernet test software assistant. The host computer connected to the carrier module slave sends data through the Ethernet test software assistant, and receives data sent from the host computer connected to the carrier module host through the Ethernet test software assistant.

[0010] Optionally, the power of the power line is alternating current or direct current with a voltage below 1200V.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] This application uses a host computer to simulate the sending and receiving of communication data to test the carrier communication module. When there is no communication equipment, the status of signal transmission data can be observed. It has the characteristics of visibility and convenient testing, which reduces the product design cycle and improves product research and development efficiency.

[0013] The detection device of the present application realizes the data transparent transmission function of the carrier communication system, the mixed signal transmission whether the signals interfere with each other function and the real-time function, which lays a test technology foundation for system development and subsequent system upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a functional block diagram of a mixed-signal carrier communication test device for wide voltage and high power. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0017] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0018] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0019] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0020] Additionally, 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 described may be practiced without these specific details.

[0021] The embodiment of the present application provides a mixed signal carrier communication test device for wide voltage and high power.

[0022] like Figure 1As shown, a mixed signal carrier communication test device for wide voltage and high power, characterized in that it includes a carrier module host and a carrier module slave, the carrier module host is electrically connected to the power line through a power carrier communication interface, the carrier module slave is electrically connected to the power line through a power carrier communication interface, the carrier module host is connected to a host computer through a communication cable, the carrier module slave is connected to a host computer through a communication cable, the wave module host and the carrier module slave are connected to different host computers, the host computer is used to simulate communication data sent to the carrier module host or the carrier module slave, and the host computer is used to receive communication data output by the carrier module host or the carrier module slave. Among them, the power carrier communication interface is a PLC interface, and the full English name of PLC is power line communication.

[0023] This application uses a host computer to simulate the sending and receiving of communication data to test the carrier communication module. When there is no communication equipment, the status of signal transmission data can be observed. It has the characteristics of visibility and convenient testing, which reduces the product design cycle and improves product research and development efficiency.

[0024] In one embodiment, the wide voltage and high power mixed signal carrier communication test device comprises a plurality of carrier module slaves, each of which is connected to a host computer. The carrier module host and each carrier module slave are powered separately.

[0025] The communication cable includes an RS485 serial communication line. The host computer selects the RS485 serial port to simulate RS485 communication data through the computer serial port transmission assistant. The host computer connected to the carrier module host sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module slave. The host computer connected to the carrier module slave sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module host.

[0026] The carrier module host and the carrier module slave are connected to the host computer through the RS485 debugging tool. The carrier module host and the carrier module are provided with a 485A+ interface, a 485B- interface and a GND interface connected to the RS485 debugging tool. The host computer is connected to the RS485 debugging tool through a USB interface. RS485 communication equipment requires 485-A, 485-B, and GND three connection lines for data communication.

[0027] The communication cable includes an RJ45 network cable, and the host computer configures the IP addresses of the carrier module host, the carrier module slave and each host computer through the Ethernet test software assistant, connects the carrier module host, the carrier module slave and each host computer in the same local area network, and the host computer connected to the carrier module host sends data through the Ethernet test software assistant, and receives data sent from the host computer connected to the carrier module slave through the Ethernet test software assistant, and the host computer connected to the carrier module slave sends data through the Ethernet test software assistant, and receives data sent from the host computer connected to the carrier module host through the Ethernet test software assistant. For industrial Ethernet communication, the present application device supports traditional four-port Ethernet, and also supports RJ45 crystal head mode for data communication.

[0028] The power of the power line is AC or DC with a voltage of 1200V or less.

[0029] The present application can observe serial port transmission data through the host computer, and can independently check the real-time transmission of one communication mode of the system, which is intuitive and visual; it can also simultaneously perform two modes of data transmission, and observe through the host computer whether the communication signals interfere with each other, and can check the non-interference characteristics of the system when transmitting mixed signals at the same time, thereby realizing the data transparent transmission function.

[0030] The test device of the present application is used to connect the communication interface and the power interface. Only two wires are needed for the intermediate line. Power line carrier communication technology is adopted to transmit various signals through a DC power line carrier, which greatly reduces the wiring harness layout and reduces the weight of the system test.

[0031] The present application also discloses a specific detection method:

[0032] 1. If Figure 1 As shown, according to the actual number of carrier module slaves, it is necessary to connect each carrier communication module, RJ45 network cable, RS485 debugging tool, host computer and power line (the number of carrier module slaves is within 16). The host and slave are selected by the dip switch, and only one host can be set, and the power adapter is connected to the carrier host M and each slave (1-N) to power the carrier (DC12-36V) separately. The power line can be up to 500 meters long, which can be appropriately reduced according to actual needs. In actual testing, one host and two slaves can be used for one-to-many testing, so as to optimize resource allocation and improve test efficiency. Note: It is forbidden to turn on the power when wiring.

[0033] 2. After checking the connection cables and devices to ensure there is no short circuit or open circuit, turn on the adapter power and the power line power. After a few seconds, the carrier communication host and slave will start working.

[0034] 3. RS485 communication test: Connect the host computer M to the carrier module host, select the RS485 serial port through the computer serial port transmission assistant, and send any data, such as "RS485 host", to observe whether the host computer RS485 serial port of other carrier communication slaves receives the corresponding data, and transmit for a period of time to observe whether there is any data error. Realize the test verification that the carrier module host sends RS485 data and receives RS485 data from the carrier module.

[0035] Similarly, in turn, the host computer of each carrier communication slave sends arbitrary data, such as "RS485 slave 1", "RS485 slave 2", etc. Observe whether the host computer of the carrier communication master receives the corresponding data, and transmit it for a period of time to observe whether there is any data error. Implement the test verification of the slave sending RS485 data and the host receiving RS485 data.

[0036] Note: The RS485 carrier module slaves cannot communicate with each other.

[0037] 4. Industrial Ethernet communication detection: RJ45 network cable connects the carrier module and the host computer, configures the host and each slave IP address through the computer-side Ethernet test software assistant, turns on the Ethernet transmission switch of the host and slave respectively, observes whether the Ethernet software assistant of each host computer receives the corresponding data, and transmits for a period of time to observe whether there is any data error. Realize the Ethernet data communication test verification between the host and the slave.

[0038] 5. Execute steps 3 and 4 simultaneously, and observe the RS485 and Ethernet communication data through the host computer to see if there are any interference errors. This step verifies the non-interference characteristics of each signal communication.

[0039] 6. Send data at certain time intervals, and observe whether the sending data time and the receiving data time are within 100ms through the host computer to verify the real-time transmission characteristics of the system.

[0040] There are no abnormal phenomena in the above steps, which means that the system's data transparent transmission characteristics, signal non-interference characteristics and real-time transmission characteristics can be verified.

[0041] The order of steps 3 and 4 can be interchanged.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A mixed signal carrier communication test device for wide voltage and high power, characterized in that: It includes a carrier module host and a carrier module slave, the carrier module host is electrically connected to the power line through a power carrier communication interface, the carrier module slave is electrically connected to the power line through a power carrier communication interface, the carrier module host is connected to a host computer through a communication cable, the carrier module slave is connected to the host computer through a communication cable, the carrier module host and the carrier module slave are connected to different host computers, the host computer is used to simulate communication data and send it to the carrier module host or the carrier module slave, and the host computer is used to receive communication data output by the carrier module host or the carrier module slave.

2. The wide voltage and high power mixed signal carrier communication test device according to claim 1, characterized in that: The mixed signal carrier communication test device for wide voltage and high power includes a plurality of carrier module slaves, and each of the carrier module slaves is connected to one of the host computers.

3. The wide voltage and high power mixed signal carrier communication test device according to claim 1, characterized in that: The communication cable includes an RS485 serial communication line. The host computer selects the RS485 serial port to simulate RS485 communication data through the computer serial port transmission assistant. The host computer connected to the carrier module host sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module slave. The host computer connected to the carrier module slave sends RS485 communication data and receives RS485 communication data sent by the host computer connected to the carrier module host.

4. The wide voltage and high power mixed signal carrier communication test device according to claim 3, characterized in that: The carrier module host and the carrier module slave are both connected to the host computer through the RS485 debugging tool. The carrier module host and the carrier module are provided with a 485A+ interface, a 485B- interface and a GND interface connected to the RS485 debugging tool. The host computer is connected to the RS485 debugging tool through a USB interface.

5. The wide voltage and high power mixed signal carrier communication test device according to claim 1, characterized in that: The communication cable includes an RJ45 network cable. The host computer configures the IP addresses of the carrier module host, the carrier module slave and each host computer through the Ethernet test software assistant, connects the carrier module host, the carrier module slave and each host computer in the same local area network, and the host computer connected to the carrier module host sends data through the Ethernet test software assistant and receives data sent from the host computer connected to the carrier module slave through the Ethernet test software assistant. The host computer connected to the carrier module slave sends data through the Ethernet test software assistant and receives data sent from the host computer connected to the carrier module host through the Ethernet test software assistant.

6. The wide voltage and high power mixed signal carrier communication test device according to claim 1, characterized in that: The power of the power line is AC or DC with a voltage of 1200V or less.

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