Digital communication device, method and system of electrical test equipment

Abstract

The invention discloses a digital communication device, method and system for electrical test equipment. The device comprises a data receiving module, a communication protocol module and a data sending module, wherein the communication protocol module is electrically connected with the data receiving module and the data sending module respectively; the data receiving module is used for receiving test data of the test equipment to be digitally upgraded; the communication protocol module is used for performing message conversion on the test data of the test equipment to be digitally upgraded to obtain a test data message of the test equipment to be digitally upgraded; and the data sending module is used for sending the test data message of the test equipment to be digitally upgraded to the digital terminal in a wireless communication mode. According to the technical scheme, the test data is automatically uploaded to the digital terminal in a wireless communication mode through the digital communication device of the electrical test equipment, and compared with the prior art, manual input of maintainers is not needed, and the efficiency of inputting the test data is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment modification, and in particular to a digital communication device, method and system for electrical test equipment. Background Art

[0002] Electrical testing is a key part of the condition maintenance of substation equipment. The accuracy and reliability of test data directly affect equipment maintenance decisions.

[0003] Traditional test equipment has a low degree of digitization. After the test is completed, the test data needs to be manually transcribed into a record sheet by maintenance personnel, and then compiled into a test report, which is usually archived in paper form. With the construction of equipment management informatization in power grid companies across the country, after the test is completed, the data still needs to be manually entered into the background system by maintenance personnel.

[0004] In the process of implementing the present invention, it is found that there are at least the following technical problems in the prior art: the prior art solution has the problem of low efficiency in inputting test data. Summary of the invention

[0005] The present invention provides a digital communication device, method and system for electrical test equipment to realize automatic input of test data and solve the problem of low test data input efficiency.

[0006] According to one aspect of the present invention, there is provided a digital communication device for electrical test equipment, comprising:

[0007] A data receiving module, a communication protocol module and a data sending module, wherein the communication protocol module is electrically connected to the data receiving module and the data sending module respectively;

[0008] The data receiving module is used to receive the test data of the test equipment to be digitally upgraded;

[0009] The communication protocol module is used to convert the test data of the test equipment to be digitally upgraded into messages to obtain the test data message of the test equipment to be digitally upgraded;

[0010] The data sending module is used to send the test data message of the test equipment to be digitally upgraded to the digital terminal in a wireless communication manner.

[0011] According to another aspect of the present invention, a digital communication method for electrical test equipment is provided, which is performed by a digital communication device of the electrical test equipment, wherein the digital communication device of the electrical test equipment comprises a data receiving module, a communication protocol module and a data sending module, wherein the communication protocol module is electrically connected to the data receiving module and the data sending module respectively, and the method comprises:

[0012] Receiving the test data of the test equipment to be digitally upgraded through the data receiving module;

[0013] The test data of the test equipment to be digitally upgraded are converted into messages through the communication protocol module to obtain the test data message of the test equipment to be digitally upgraded;

[0014] The test data message of the test equipment to be digitally upgraded is sent to the digital terminal in a wireless communication manner through the data sending module.

[0015] According to another aspect of the present invention, there is provided a digital communication system for electrical test equipment, comprising:

[0016] Test equipment, data receiving modules, communication protocol modules, data sending modules, digital terminals and data centers to be digitally upgraded;

[0017] The test equipment to be digitally upgraded is communicatively connected with the data receiving module;

[0018] The communication protocol module is electrically connected to the data receiving module and the data sending module respectively;

[0019] The digital terminal is respectively connected to the data sending module and the data center for communication;

[0020] The data receiving module is used to receive the test data of the test equipment to be digitally upgraded;

[0021] The communication protocol module is used to convert the test data of the test equipment to be digitally upgraded into messages to obtain the test data message of the test equipment to be digitally upgraded;

[0022] The data sending module is used to send the test data message of the test equipment to be digitally upgraded to the digital terminal in a wireless communication manner;

[0023] The digital terminal is used to parse the test data message of the test equipment to be digitally upgraded to obtain the test data of the test equipment to be digitally upgraded; and send the test data of the test equipment to be digitally upgraded to the data center.

[0024] The technical solution of the embodiment of the present invention realizes automatic uploading of test data of test equipment to be digitally upgraded to a digital terminal by wireless communication through the data receiving module, communication protocol module and data sending module of the digital communication device of the electrical test equipment. Compared with the prior art, it does not require manual entry by maintenance personnel, thereby improving the efficiency of entering test data.

[0025] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a structural schematic diagram of a digital communication device for electrical test equipment provided according to Embodiment 1 of the present invention;

[0028] Figure 2 It is a schematic diagram of a flow chart of message interaction of a digital communication device provided according to the first embodiment of the present invention;

[0029] Figure 3 is a flow chart of a digital communication method for electrical test equipment provided according to Embodiment 2 of the present invention;

[0030] Figure 4 It is a structural diagram of a digital communication system of an electrical test equipment provided according to the third embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The acquisition, storage, use, processing, etc. of data in the technical solution of this application comply with the relevant provisions of national laws and regulations.

[0033] Embodiment 1

[0034] Figure 1 This is a schematic diagram of the structure of a digital communication device for electrical test equipment provided in the first embodiment of the present invention. This embodiment is applicable to the case where a test equipment used for status inspection of substation equipment is digitally transformed, such as Figure 1 As shown, the device comprises:

[0035] A data receiving module 110, a communication protocol module 120 and a data sending module 130, wherein the communication protocol module 120 is electrically connected to the data receiving module 110 and the data sending module 130 respectively; the data receiving module 110 is used to receive the test data of the test equipment to be digitally upgraded; the communication protocol module 120 is used to convert the test data of the test equipment to be digitally upgraded into messages to obtain the test data messages of the test equipment to be digitally upgraded; the data sending module 130 is used to send the test data messages of the test equipment to be digitally upgraded to the digital terminal in a wireless communication manner.

[0036] In an embodiment of the present invention, the test equipment to be digitally upgraded refers to a test equipment that does not support wireless communication. Optionally, the test equipment to be digitally upgraded is one or more of a DC resistance tester, a loop resistance tester, and a transformer capacity characteristic tester. Test data refers to the result of an electrical test on a power grid device by a test device, and may include but is not limited to test time, test holding time, test voltage, test voltage unit, test current, test current unit, test resistance, and test resistance unit, etc., which are not specifically limited here.

[0037] Optionally, the data receiving module 110 supports access to the test equipment to be digitally upgraded via RS232, RS485, USB and Bluetooth interfaces.

[0038] Specifically, the data receiving module 110 can access test equipment with non-standard protocols or non-standard interfaces, and can specifically support test equipment to be digitally upgraded that is connected to RS232, RS485, USB and Bluetooth interfaces.

[0039] Optionally, the data sending module 130 includes a Bluetooth module and / or a Wireless LAN Authentication and Privacy Infrastructure (WAPI) module.

[0040] It is understandable that the test data can be automatically uploaded to the digital terminal by wireless communication through the Bluetooth module and / or the wireless local area network authentication and confidentiality infrastructure module. Wireless communication can support power private networks, including but not limited to WAPI networks, private protocol VPNs or narrowband Internet of Things.

[0041] In some optional embodiments, the test data message may be encrypted by a Bluetooth module and / or a wireless local area network authentication and confidentiality infrastructure module, thereby improving the security of data transmission.

[0042] Optionally, the test data message of the test equipment to be digitally upgraded includes one or more of a message header, a message length, a command word, a data area length, a data area and a check code.

[0043] In an embodiment of the present invention, the message header may occupy 3 bytes, which is fixed to the ASCII code of BEG. The message length may occupy 4 bytes, which are used to characterize the total number of bytes of the message. The message length may be calculated from the message header to the check code and include the check code. The command word may occupy 2 bytes, which are used to characterize the message type. The data area length may occupy 4 bytes, which are used to characterize the number of bytes in the data area, and 0 indicates that there is no data in the data area. The data area may occupy N bytes, and N may be adaptively set according to the requirements of the experimental equipment. The check code may occupy two bytes, for example, the check code may adopt a CRC16 check code, and the check range is all data from the message header to the data area. Exemplarily, the structure of the test data message may be as shown in Table 1, and the definition of the command word may be as shown in Table 2.

[0044] Table 1

[0045] Header Message length Command word Data area length Data Area Check code 0x42 0x45 0x47 0x0000000F 0x0001 0x00000000 null CRC16

[0046] Table 2

[0047]

[0048] The current test data in Table 2 refers to the test data obtained by real-time measurement of the test equipment. The historical test data refers to the test data obtained by historical measurement of the test equipment. The basic test information may include the test instrument type, instrument manufacturer, instrument model, instrument factory number, temperature, humidity, longitude, latitude and altitude, etc., which are not specifically limited here.

[0049] In the embodiment of the present invention, the digital terminal may be a power grid digital terminal, which may be a computer or a mobile terminal in the power grid system, etc., which is not specifically limited here.

[0050] For example, Figure 2 This is a flow diagram of message interaction of a digital communication device according to Embodiment 1 of the present invention. Specifically, the digital terminal can send a connection request message to the test equipment to be digitally upgraded through the digital communication device, and then when the connection is successfully established, the test equipment to be digitally upgraded feeds back a connection request confirmation message to the digital terminal through the digital communication device.

[0051] The digital terminal can also send a request for obtaining current test data to the test equipment to be digitally upgraded through the digital communication device, and the test equipment to be digitally upgraded will then feedback the current test data to the digital terminal through the digital communication device. After the digital terminal receives the current test data, the digital terminal sends a data reception confirmation message to the test equipment to be digitally upgraded through the digital communication device.

[0052] The digital terminal can also send a request for historical test data to the test equipment to be digitally upgraded through the digital communication device, and the test equipment to be digitally upgraded will then feedback the historical test data to the digital terminal through the digital communication device. After the digital terminal receives the historical test data, the digital terminal sends data reception confirmation information to the test equipment to be digitally upgraded through the digital communication device.

[0053] The digital terminal can also send a request for basic test information to the test equipment to be digitally upgraded through the digital communication device, and the test equipment to be digitally upgraded will then feedback the basic test information to the digital terminal through the digital communication device. After the digital terminal receives the basic test information, the digital terminal sends data reception confirmation information to the test equipment to be digitally upgraded through the digital communication device.

[0054] Optionally, the digital communication device of the electrical test equipment further includes: a debugging module for debugging the communication between the test equipment to be digitally upgraded and the digital communication device of the electrical test equipment; and / or debugging the communication between the digital communication device of the electrical test equipment and the digital terminal.

[0055] It should be noted that, through communication debugging, it is possible to ensure that the communication is accurate and reliable, and that the communication complies with the communication protocol.

[0056] Exemplarily, the specific debugging scheme may include but is not limited to: testing whether both ends can normally receive and send data; testing whether the digital terminal can accurately parse the message content, etc.

[0057] In some optional embodiments, the test equipment to be digitally upgraded may also be debugged for network access. If the network access debugging is passed, a network access certification certificate may be issued to the test equipment to be digitally upgraded to allow the test equipment to access the network.

[0058] The technical solution of the embodiment of the present invention realizes automatic uploading of test data of test equipment to be digitally upgraded to a digital terminal by wireless communication through the data receiving module, communication protocol module and data sending module of the digital communication device of the electrical test equipment. Compared with the prior art, it does not require manual entry by maintenance personnel, thereby improving the efficiency of entering test data.

[0059] Embodiment 2

[0060] Figure 3 This is a flowchart of a digital communication method for electrical test equipment provided in the second embodiment of the present invention. The method can be executed by a digital communication device for electrical test equipment. The digital communication device for electrical test equipment can be implemented in the form of hardware and / or software. Figure 3 As shown, the method includes:

[0061] S210: Receive test data of the test equipment to be digitally upgraded through the data receiving module.

[0062] S220. Convert the test data of the test equipment to be digitally upgraded into messages through the communication protocol module to obtain test data messages of the test equipment to be digitally upgraded.

[0063] S230. Send the test data message of the test equipment to be digitally upgraded to the digital terminal by wireless communication through the data sending module.

[0064] The technical solution of the embodiment of the present invention realizes automatic uploading of test data of test equipment to be digitally upgraded to a digital terminal by wireless communication through the data receiving module, communication protocol module and data sending module of the digital communication device of the electrical test equipment. Compared with the prior art, it does not require manual entry by maintenance personnel, thereby improving the efficiency of entering test data.

[0065] Optionally, the test equipment to be digitally upgraded is one or more of a DC resistance tester, a loop resistance tester, and a transformer capacity characteristic tester.

[0066] Optionally, the data receiving module supports access to the test equipment to be digitally upgraded via RS232, RS485, USB and Bluetooth interfaces.

[0067] Optionally, the data sending module includes a Bluetooth module and / or a wireless local area network authentication and privacy infrastructure module.

[0068] Optionally, the test data message of the test equipment to be digitally upgraded includes one or more of a message header, a message length, a command word, a data area length, a data area and a check code.

[0069] Optionally, the method further comprises:

[0070] Debugging the communication between the test equipment to be digitally upgraded and the digital communication device of the electrical test equipment through the debugging module;

[0071] And / or, debugging the communication between the digital communication device of the electrical test equipment and the digital terminal through the debugging module.

[0072] The digital communication method for electrical test equipment provided in the embodiment of the present invention can be executed by the digital communication device for electrical test equipment provided in any embodiment of the present invention, and has the corresponding method steps and beneficial effects of the device.

[0073] Embodiment 3

[0074] Figure 4 A schematic diagram of a digital communication system for an electrical test device provided in the third embodiment of the present invention is shown in FIG. Figure 4 As shown, the system includes a test device 100 to be digitally upgraded, a data receiving module 110, a communication protocol module 120, a data sending module 130, a digital terminal 140 and a data center 150;

[0075] The test equipment 100 to be digitally upgraded is in communication connection with the data receiving module 110;

[0076] The communication protocol module 120 is electrically connected to the data receiving module 110 and the data sending module 130 respectively;

[0077] The digital terminal 140 is respectively connected to the data transmission module 130 and the data center 150 for communication;

[0078] The data receiving module 110 is used to receive the test data of the test equipment 100 to be digitally upgraded;

[0079] The communication protocol module 120 is used to convert the test data of the test equipment to be digitally upgraded into a message to obtain the test data message of the test equipment to be digitally upgraded;

[0080] The data sending module 130 is used to send the test data message of the test equipment to be digitally upgraded to the digital terminal 140 in a wireless communication manner;

[0081] The digital terminal 140 is used to parse the test data message of the test equipment to be digitally upgraded to obtain the test data of the test equipment to be digitally upgraded; and send the test data of the test equipment to be digitally upgraded to the data center 150.

[0082] In the embodiment of the present invention, the data center 150 may be a power grid data center, which may be used to store and analyze test data.

[0083] The technical solution of the embodiment of the present invention realizes automatic uploading of test data of test equipment to be digitally upgraded to a digital terminal by wireless communication through the data receiving module, communication protocol module and data sending module of the digital communication device of the electrical test equipment. Compared with the prior art, it does not require manual entry by maintenance personnel, thereby improving the efficiency of entering test data.

[0084] Optionally, the digitization terminal 140 and the data sending module 130 perform data transmission via 2.4 GHZ wireless transmission technology.

[0085] Optionally, the digitization terminal 140 and the data center 150 perform data transmission via a wireless local area network (WLAN).

[0086] Optionally, the test equipment 100 to be digitally upgraded is one or more of a DC resistance tester, a loop resistance tester, and a transformer capacity characteristic tester.

[0087] Optionally, the data receiving module 110 supports access to RS232, RS485, USB and Bluetooth interfaces of the test equipment 100 to be digitally upgraded.

[0088] Optionally, the data transmission module 130 includes a Bluetooth module and / or a wireless local area network authentication and privacy infrastructure module.

[0089] Optionally, the test data message of the test equipment to be digitally upgraded includes one or more of a message header, a message length, a command word, a data area length, a data area and a check code.

[0090] Optionally, the system further comprises:

[0091] A debugging module, used for debugging the communication between the test equipment 100 to be digitally upgraded and the digital communication device of the electrical test equipment;

[0092] And / or, debugging the communication between the digital communication device of the electrical test equipment and the digital terminal 140.

[0093] The digital communication system for electrical test equipment provided by the embodiment of the present invention includes the digital communication device for electrical test equipment provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects of the device.

[0094] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0095] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A digital communication device for electrical test equipment, characterized in that: include: A data receiving module, a communication protocol module and a data sending module, wherein the communication protocol module is electrically connected to the data receiving module and the data sending module respectively; The data receiving module is used to receive the test data of the test equipment to be digitally upgraded; The communication protocol module is used to convert the test data of the test equipment to be digitally upgraded into messages to obtain the test data message of the test equipment to be digitally upgraded; The data sending module is used to send the test data message of the test equipment to be digitally upgraded to the digital terminal in a wireless communication manner.

2. The device according to claim 1, characterized in that The test equipment to be digitally upgraded is one or more of a DC resistance tester, a loop resistance tester and a transformer capacity characteristic tester.

3. The device according to claim 1, characterized in that The data receiving module supports the test equipment to be digitally upgraded that is connected to RS232, RS485, USB and Bluetooth interfaces.

4. The device according to claim 1, characterized in that The data sending module includes a Bluetooth module and / or a wireless local area network authentication and privacy infrastructure module.

5. The device according to claim 1, characterized in that The test data message of the test equipment to be digitally upgraded includes one or more of a message header, a message length, a command word, a data area length, a data area and a check code.

6. The device according to claim 1, characterized in that The digital communication device of the electrical test equipment further comprises: A debugging module, used for debugging the communication between the test equipment to be digitally upgraded and the digital communication device of the electrical test equipment; And / or, debugging the communication between the digital communication device of the electrical test equipment and the digital terminal.

7. A digital communication method for electrical test equipment, characterized in that: The method is performed by a digital communication device of an electrical test equipment, the digital communication device of the electrical test equipment includes a data receiving module, a communication protocol module and a data sending module, the communication protocol module is electrically connected to the data receiving module and the data sending module respectively, and the method includes: Receiving the test data of the test equipment to be digitally upgraded through the data receiving module; The test data of the test equipment to be digitally upgraded are converted into messages through the communication protocol module to obtain the test data message of the test equipment to be digitally upgraded; The test data message of the test equipment to be digitally upgraded is sent to the digital terminal in a wireless communication manner through the data sending module.

8. A digital communication system for electrical test equipment, characterized in that: include: Test equipment, data receiving modules, communication protocol modules, data sending modules, digital terminals and data centers to be digitally upgraded; The test equipment to be digitally upgraded is communicatively connected with the data receiving module; The communication protocol module is electrically connected to the data receiving module and the data sending module respectively; The digital terminal is respectively connected to the data sending module and the data center for communication; The data receiving module is used to receive the test data of the test equipment to be digitally upgraded; The communication protocol module is used to convert the test data of the test equipment to be digitally upgraded into messages to obtain the test data message of the test equipment to be digitally upgraded; The data sending module is used to send the test data message of the test equipment to be digitally upgraded to the digital terminal in a wireless communication manner; The digital terminal is used to parse the test data message of the test equipment to be digitally upgraded to obtain the test data of the test equipment to be digitally upgraded; and send the test data of the test equipment to be digitally upgraded to the data center.

9. The digital communication system for electrical testing equipment according to claim 8, characterized in that: The digital terminal and the data sending module perform data transmission via 2.4 GHZ wireless transmission technology.

10. The digital communication system for electrical testing equipment according to claim 8, characterized in that: The digital terminal and the data center perform data transmission via a wireless local area network.

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