Current loop monitoring device and monitoring method based on 5G technology

Abstract

The invention discloses a current loop monitoring device and monitoring method based on the 5G technology, and relates to the technical field of circuit detection, in particular to a current loop monitoring host which comprises a 5G receiving module used for communication, a host control circuit used for data processing, an interaction module used for control and data display and an alarm module used for warning, the 5G receiving module, the interaction module and the alarm module are electrically connected with the host control circuit. According to the current loop monitoring device and monitoring method based on the 5G technology, a plurality of groups of current loops are synchronously monitored by arranging a distributed current acquisition terminal, and information of each detection point is synchronously acquired in a 5G communication mode, so that vector measurement information of each monitoring point can be quickly obtained, workers do not need to frequently work at the monitoring points, and the working efficiency is improved. And the secondary side opening of the current loop caused by mistaken touch is avoided.

Description

Technical Field

[0001] The present invention relates to the field of circuit detection technology, and more specifically, to a current loop monitoring device based on 5G technology. In addition, the present invention also relates to a monitoring method applied to the above-mentioned current loop monitoring device based on 5G technology. Background Art

[0002] When the secondary circuit of the current transformer is open, the core is severely saturated and the core loss increases, causing the core to heat up severely and generate very high voltage, which may burn out the current transformer and pose a great danger to equipment and operators. Therefore, the safety of the current circuit is particularly important during work.

[0003] Secondary maintenance personnel usually deal with defects and the calibration, overhaul, and modification of protection devices, measurement and control devices, PMUs, fault recorders, and other devices, often test current circuits or short-seal the secondary side of current transformers. At this stage, when short-sealing current circuits, traditional short-seal wires are used, and it is not possible to directly see whether the circuit is short-sealed well. Traditional short-seal wires are mostly made by the staff themselves. When making them, they often cut the test wire short first, and then twist the multi-strand soft copper wires at the tail of the cut test wire, weld them firmly, and wrap them with insulating tape. When used for a long time, the internal welds are prone to loosening, and the circuit is easy to open without knowing it during use.

[0004] During the power transmission process of the power system, substation operation and maintenance personnel or secondary professionals are often required to perform vector measurement. In large-scale power systems, there are often a large number of CTs (Current transformers), and the current loops are arranged in a scattered manner, arranged in different protection cabinets according to different needs. In most cases, when performing vector testing on the current loop, it is necessary to use a clamp ammeter to measure each cabinet one by one. This is not only time-consuming and labor-intensive, but also easy to go to the wrong interval, accidentally touch the short sealing line, etc., causing the secondary side of the current loop to open.

[0005] In summary, how to provide a solution to the problem that when measuring the current loop vector, the detection points are scattered, the detection is inconvenient, the detection process is time-consuming and labor-intensive, and there is a risk of opening the secondary side of the current loop during the detection process is a problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a current loop monitoring device based on 5G technology, which synchronously monitors several groups of current loops by setting up distributed current acquisition terminals, and synchronously collects information of each detection point through 5G communication, so as to quickly obtain vector measurement information of each monitoring point, without the need for staff to frequently operate at the monitoring points, and avoid the secondary side opening of the current loop caused by accidental touch.

[0007] Another object of the present invention is to provide a monitoring method applied to the above-mentioned current loop monitoring device based on 5G technology, which utilizes the 5G network for data transmission, can quickly obtain the detection information of the distributed current acquisition terminal, perform data comparison, and intuitively display the information.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A current loop monitoring device based on 5G technology, comprising:

[0010] A current loop monitoring host, comprising a 5G receiving module for communication, a host control circuit for data processing, an interactive module for control and data display, and an alarm module for warning, wherein the 5G receiving module, the interactive module, and the alarm module are electrically connected to the host control circuit respectively;

[0011] A distributed current acquisition terminal includes a 5G transmission module for communication, a terminal control circuit for data processing, and an open CT test clamp for information acquisition. The 5G transmission module and the open CT test clamp are electrically connected to the terminal control circuit respectively, and the 5G receiving module can simultaneously perform wireless data transmission with several groups of the 5G transmission modules through a 5G network.

[0012] Preferably, the current loop monitoring host further comprises a current / voltage test port for wired connection with the position to be detected, and the current / voltage test port is electrically connected to the host control circuit.

[0013] Preferably, the current loop monitoring host further comprises a first power supply module for supplying power to the current loop monitoring host;

[0014] The distributed current acquisition terminal also includes a second power supply module, which is used to supply power to the distributed current acquisition terminal.

[0015] Preferably, the interaction module is a touch screen display, which is used to display the information to be displayed by the host control circuit and control the device to start / end the test.

[0016] Preferably, the alarm module includes an alarm speaker and / or a warning light for giving warnings through sound and / or light information.

[0017] Preferably, the distributed current acquisition terminal also includes a display screen and control buttons for interacting with the terminal control circuit to display the data to be displayed by the terminal control circuit and control the device to start / end the test.

[0018] Preferably, the terminal control circuit and the 5G sending module are arranged relatively fixedly, and several groups of the open CT test clips are electrically connected to the terminal control circuit through soft wires.

[0019] A monitoring method is applied to any one of the above-mentioned current loop monitoring devices based on 5G technology, and the monitoring method comprises the following steps:

[0020] Controlling the open CT test clamp to detect vector information of a position corresponding to the current loop to be tested, and sending the vector information through the 5G sending module;

[0021] Control the 5G receiving module to receive the vector information, and transmit the vector information to the host control circuit;

[0022] Controlling the host control circuit to parse and compare the received sets of vector information;

[0023] The interactive device is controlled to display the analysis and comparison result of the host control circuit.

[0024] Preferably, controlling the host control circuit to parse and compare the received sets of vector information;

[0025] The vector information is the vector information measured by the current loop monitoring host through a wired connection between the voltage / current acquisition line and the corresponding position of the current loop to be measured.

[0026] The current loop monitoring device based on 5G technology provided by the present invention has at least the following beneficial effects compared with the prior art:

[0027] 1. Use distributed current acquisition terminals with distributed layout to perform vector measurement of current loops, which is convenient for simultaneous detection of multiple detection points. At the same time, communication is carried out through the 5G network, so that the distributed current acquisition terminal and the current loop monitoring host are arranged separately, so that the detection end and the monitoring end are not restricted by space.

[0028] 2. The current loop monitoring host can compare the vector measurement results of multiple monitoring points, and when the current loop is open, it can promptly alarm through the alarm module to reduce losses.

[0029] The monitoring method provided by the present invention is applied to the above-mentioned current loop monitoring device based on 5G technology and has the same technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of module connections of a current loop monitoring device based on 5G technology provided by the present invention;

[0032] Figure 2 A schematic diagram of the structure of a specific current loop monitoring host provided by the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of a specific distributed current acquisition terminal provided by the present invention;

[0034] Figure 4 A schematic diagram of a specific monitoring method provided by the present invention;

[0035] FIG5 is a flow chart of another embodiment of a specific monitoring method provided by the present invention.

[0036] Figure 1-Figure 4 middle:

[0037] 1. Host control circuit; 2. Alarm speaker; 3. Current / voltage test port; 4. 5G receiving module; 5. First power supply module; 6. Touch screen display;

[0038] 7. Open CT test clip; 8. Second power supply module; 9. Terminal control circuit; 10. 5G transmission module. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0040] The core of the present invention is to provide a current loop monitoring device based on 5G technology, which synchronously monitors several groups of current loops by setting up distributed current acquisition terminals, and synchronously collects information from each detection point through 5G communication, so as to quickly obtain vector measurement information from each monitoring point, without the need for staff to frequently operate at the monitoring point, and avoid the secondary side opening of the current loop caused by accidental touch. Another core of the present invention is to provide a monitoring method applied to the above-mentioned current loop monitoring device based on 5G technology, which uses the 5G network for data transmission, can quickly obtain the detection information of the distributed current acquisition terminal, perform data comparison, and intuitively display the information.

[0041] Please refer to Figure 1-Figure 3 , a current loop monitoring device based on 5G technology, comprising:

[0042] The current loop monitoring host includes a 5G receiving module 4 for communication, a host control circuit 1 for data processing, an interactive module for control and data display, and an alarm module for warning, and the 5G receiving module 4, the interactive module and the alarm module are electrically connected to the host control circuit 1 respectively;

[0043] A distributed current acquisition terminal, comprising a 5G transmission module 10 for communication, a terminal control circuit 9 for data processing and an open CT test clip 7 for information acquisition, wherein the 5G transmission module 10 and the open CT test clip 7 are electrically connected to the terminal control circuit 9 respectively, and the 5G receiving module 4 can simultaneously perform wireless data transmission with several groups of 5G transmission modules 10 through a 5G network;

[0044] like Figure 1 and Figure 3 As shown, the distributed current acquisition terminal is provided with an open CT test clamp 7, which can be clamped at the corresponding position of the current loop to be measured, perform vector measurement of the corresponding circuit, and transmit the measurement information to the terminal control circuit 9, and the terminal control circuit 9 sends the measured information through the 5G sending module 10;

[0045] like Figure 1 As shown, the 5G receiving module 4 in the host control circuit 1 can receive the information sent by the 5G sending module 10, and then transmit the received information to the host control circuit 1. The host control circuit 1 can parse the received information and compare multiple groups of information, and display the comparison results through the interactive module, so that the operator can intuitively observe and obtain useful information;

[0046] In this process, the distributed current acquisition terminal and the current loop monitoring host use 5G network for wireless transmission, which has the advantages of high transmission rate, low delay and low packet loss rate, and makes both of them free from space restrictions. The current loop monitoring host can simultaneously obtain information from several groups of distributed current acquisition terminals and compare the information to obtain the dynamic change difference of measurement information at different monitoring locations, and then issue an alarm for special situations to reduce the safety hazards and losses caused by the open circuit on the secondary side of the current loop.

[0047] In actual use, because there are many current transformers in the power system and the current loops are arranged in a relatively scattered manner, distributed current acquisition terminals are directly arranged in each current loop. Therefore, each time a measurement is performed, the operator does not need to enter the protection cabinet again to install and measure the equipment, which can effectively improve the test efficiency. The fixedly arranged current acquisition terminals can monitor for a long time to ensure the stable operation of the power system.

[0048] In some embodiments, the current loop monitoring host further comprises a current / voltage test port 3 for wired connection with the position to be detected, and the current / voltage test port 3 is electrically connected to the host control circuit 1;

[0049] like Figure 1 and Figure 2 As shown, in addition to obtaining the information of the distributed current acquisition terminal through the 5G receiving module 4, the current loop monitoring host can also directly connect to the corresponding position of the current loop through the voltage / current acquisition line to perform vector measurement, which is suitable for temporary measurement of monitoring points where distributed current acquisition terminals are not arranged, realizing multiple uses of one machine.

[0050] In some embodiments, the current loop monitoring host further comprises a first power supply module 5 for supplying power to the current loop monitoring host;

[0051] The distributed current acquisition terminal also includes a second power supply module 8, which is used to supply power to the distributed current acquisition terminal;

[0052] like Figure 1 As shown, both the current loop monitoring host and the distributed current acquisition terminal adopt independent power supply for DC power supply, which ensures stable power supply of the equipment and helps the distributed current acquisition terminal to work stably for a long time.

[0053] In some embodiments, the interaction module is a touch screen display 6, which is used to display the information to be displayed by the host control circuit 1 and control the device to start / end the test;

[0054] Information display and operation are performed simultaneously through the touch screen display 6, which is convenient for improving operation efficiency; in some embodiments, interaction is performed by combining a display screen and operation buttons, which also falls within the scope of protection of this application.

[0055] In some embodiments, the alarm module includes an alarm speaker 2 and / or a warning light for warning through sound and / or light information;

[0056] An alarm module is integrated in the current loop monitoring host. When the vector measurement result received by the current loop monitoring host meets the characteristics of an open secondary circuit, an alarm speaker 2, a warning light, etc. are preferably used for sound and light alarm, so as to inform the on-site staff to avoid danger or repair the equipment in the first time to prevent the accident from further expanding.

[0057] In some embodiments, the distributed current acquisition terminal further includes a display screen and control buttons for interacting with the terminal control circuit 9 to display the data to be displayed by the terminal control circuit 9 and control the device to start / end the test;

[0058] like Figure 3 As shown, a display screen and control buttons are also arranged in the distributed current acquisition terminal for interaction, so that the distributed current acquisition terminal can directly display the vector measurement results, and maintenance personnel can directly obtain the measurement results when working on site.

[0059] In some embodiments, the terminal control circuit 9 and the 5G transmission module 10 are relatively fixedly arranged, and a plurality of groups of open CT test clips 7 are electrically connected to the terminal control circuit 9 through flexible wires;

[0060] like Figure 3 As shown, each distributed current acquisition terminal is provided with a plurality of open CT test clips 7, each open CT test clip 7 will be clamped at a different monitoring position of the current loop, and the open CT test clip 7 and the main body of the distributed current acquisition terminal are connected by a soft wire, which can reduce the space limitation when arranging the open CT test clip 7, thereby improving the convenience during arrangement.

[0061] In addition to the current loop monitoring device based on 5G technology disclosed in the above embodiments, the present invention also provides a monitoring method applied to the above current loop monitoring device based on 5G technology, including the following steps:

[0062] Control the open CT test clamp 7 to detect the vector information of the corresponding position of the current loop to be tested, and send the vector information through the 5G sending module 10;

[0063] Control the 5G receiving module 4 to receive the vector information and transmit the vector information to the host control circuit 1;

[0064] Control the host control circuit 1 to analyze and compare the received sets of vector information;

[0065] The control interaction device displays the analysis and comparison results of the host control circuit 1;

[0066] like Figure 4 As shown, by pre-arranging distributed current acquisition terminals at different detection positions of the current loop, the open CT test clip 7 in each distributed current acquisition terminal collects the vector information of the circuit at its location, and the collected vector information includes current information and voltage information. After the information is wirelessly transmitted between the 5G sending module 10 and the 5G receiving module 4, it is received by the host control circuit 1 of the current loop monitoring host. The host control circuit 1 parses and compares the received several groups of vector information, and displays the comparison results through the interactive module, specifically through the touch display 6. When the host control circuit 1 parses and compares the vector information, if one or more groups of vector information are consistent with the vector information when the secondary side of the current loop is open, the alarm module is directly controlled to alarm, specifically, the alarm speaker 2 is controlled to sound an alarm to notify the on-site personnel;

[0067] like Figure 2 As shown, specifically, the CT1 column in the interface displayed by the touch screen display 6 of the host of the current loop monitoring device changes from gray to white, becoming an operable state, and the distributed current acquisition terminals are arranged according to the needs, and the maximum number of accesses is 12, namely CT1, CT2, CT3, CT4 ... CT12, the left voltage column is in a fixed display state, and the right CT column is in a slidable state, and the display state is usually 1 column of voltage and 2 columns of CT for easy comparison of amplitude and angle.

[0068] In some embodiments, the host control circuit 1 performs analysis and comparison on the received sets of vector information;

[0069] The vector information is the vector information measured by the current loop monitoring host through the voltage / current acquisition line and the corresponding position of the current loop to be measured.

[0070] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other;

[0071] At the same time, the product and method also provide vector measurement through wired connection. Before the test, the control current loop monitoring host is modulated into wired mode, and in the wired mode, only one current and one voltage can be measured and compared, or two voltages can be measured and compared. When measuring and comparing two voltages, it is necessary to slide the screen from left to right to display the two voltage measurement and comparison screens, and the voltage accuracy is two decimal places;

[0072] Specifically, use the current acquisition line to connect the current test socket and the corresponding position of the current loop to be tested, use the voltage acquisition line to connect the voltage test socket and the corresponding position of the voltage transfer cabinet terminal block, click to start the test, select the reference voltage as line voltage or bus voltage, slide the screen to browse the CT current amplitude and angle of the test, and you can see the current and voltage phase diagram and waveform diagram at the bottom of the screen;

[0073] During the process, if the current circuit is open, an alarm will be triggered; if it is normal, the corresponding test data will be recorded.

[0074] It is worth noting that, as shown in FIG5 , for a device equipped with a current / voltage test port 3 and capable of wired connection testing, a measurement mode selection is provided, that is, before conducting a test, it is necessary to first select a wireless mode, a wired mode or a voltage comparison mode, and then receive information, analyze and compare, and display an alarm.

[0075] The above is a detailed introduction to the current loop monitoring device and monitoring method based on 5G technology provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A current loop monitoring device based on 5G technology, characterized in that: include: A current loop monitoring host, comprising a 5G receiving module (4) for communication, a host control circuit (1) for data processing, an interaction module for control and data display, and an alarm module for warning, wherein the 5G receiving module (4), the interaction module, and the alarm module are electrically connected to the host control circuit (1) respectively; A distributed current acquisition terminal comprises a 5G transmission module (10) for communication, a terminal control circuit (9) for data processing, and an open CT test clip (7) for information acquisition, wherein the 5G transmission module (10) and the open CT test clip (7) are respectively electrically connected to the terminal control circuit (9), and the 5G receiving module (4) is capable of simultaneously performing wireless data transmission with a plurality of groups of the 5G transmission modules (10) through a 5G network.

2. The current loop monitoring device based on 5G technology according to claim 1, characterized in that: The current loop monitoring host further comprises a current / voltage test connection hole (3) for wired connection with a position to be detected, and the current / voltage test connection hole (3) is electrically connected to the host control circuit (1).

3. The current loop monitoring device based on 5G technology according to claim 1, characterized in that: The current loop monitoring host further comprises a first power supply module (5) for supplying power to the current loop monitoring host; The distributed current acquisition terminal also includes a second power supply module (8) used for supplying power to the distributed current acquisition terminal.

4. The current loop monitoring device based on 5G technology according to claim 1, characterized in that: The interactive module is a touch screen display (6) used to display information to be displayed by the host control circuit (1) and to control the device to start / end testing.

5. The current loop monitoring device based on 5G technology according to claim 1, characterized in that: The alarm module comprises an alarm speaker (2) and / or a warning light, which is used to give an alarm through sound and / or light information.

6. The current loop monitoring device based on 5G technology according to claim 1, characterized in that: The distributed current acquisition terminal also includes a display screen and control buttons, which are used to interact with the terminal control circuit (9) to display the data to be displayed by the terminal control circuit (9) and control the device to start / end testing.

7. The current loop monitoring device based on 5G technology according to any one of claims 1 to 6, characterized in that: The terminal control circuit (9) and the 5G transmission module (10) are relatively fixedly arranged, and a plurality of groups of the open CT test clips (7) are electrically connected to the terminal control circuit (9) via flexible wires.

8. A monitoring method, characterized in that: The current loop monitoring device based on 5G technology applied to any one of claims 1 to 7, wherein the monitoring method comprises the following steps: Controlling the open CT test clamp (7) to detect vector information of a position corresponding to the current loop to be tested, and sending the vector information through the 5G sending module (10); Controlling the 5G receiving module (4) to receive the vector information, and transmitting the vector information to the host control circuit (1); Controlling the host control circuit (1) to parse and compare the received plurality of sets of vector information; The interactive device is controlled to display the analysis and comparison result of the host control circuit (1).

9. The monitoring method according to claim 8, characterized in that: Controlling the host control circuit (1) to analyze and compare the received sets of vector information; The vector information is the vector information measured by the current loop monitoring host through a wired connection between the voltage / current acquisition line and the corresponding position of the current loop to be measured.

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