Communication method for line arrester on-line monitoring system

Abstract

The invention discloses a communication method for a line arrester on-line monitoring system, which comprises the following steps of: debugging a concentrator, so that an ID of a superior concentrator with a communication path and an own ID are stored in the concentrator; the collector broadcasts first data information to the outside, wherein the first data information comprises an ID number of the collector and lightning arrester state information; after receiving the first data information from the collector, the at least one concentrator uploads second data information step by step according to the communication path determined in the debugging stage until the second data information is finally transmitted to the receiver; through the method, when the concentrator is installed, the ID sequence and the pairing condition of the collector, the concentrator and the receiver do not need to be considered, and the installation efficiency of equipment can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of data communication, and in particular to a communication method for an online monitoring system of a line lightning arrester. Background Art

[0002] In power transmission and distribution lines, in order to ensure the normal operation of the lines and prevent the impact of lightning strikes on the lines, a large number of line lightning arresters or other lightning protection equipment are installed. However, there is a lack of status monitoring methods for line lightning protection equipment. Currently, commonly used discharge counters and online monitors can monitor line lightning protection equipment, but the discharge counters and online detectors have single functions, require manual viewing, and have no fault warning function.

[0003] In recent years, in response to the needs of condition-based maintenance, online monitoring systems for lightning arresters have been installed in some key areas, and great progress has been made in data analysis and fault detection. However, the existing self-organizing network systems used in online monitoring systems for lightning arresters usually include collectors, concentrators, and receivers. Collectors, concentrators, and receivers all need to be paired in ID order, which makes actual applications more troublesome and inefficient. Summary of the invention

[0004] In view of the above-mentioned prior art, the present invention provides a communication method for an online monitoring system of a line lightning arrester, mainly to solve the technical problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0006] A communication method for an online monitoring system of a line lightning arrester comprises the following steps:

[0007] Debugging the concentrator so that the concentrator stores the ID number of the upper concentrator with which the communication path exists and the concentrator's own ID number;

[0008] The collector broadcasts first data information externally, wherein the first data information includes the ID number of the collector and the arrester status information;

[0009] After receiving the first data information from the collector, at least one of the concentrators uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver.

[0010] Optionally, the arrester status information includes voltage data, current data, pressure data, vibration data, lightning strike intensity data, temperature data, and humidity data of the arrester.

[0011] Optionally, after receiving the first data information from the collector, the at least one concentrator uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver, including:

[0012] After at least one of the concentrators receives the first data information from the collector, it sends the second data information to the upper-level concentrator according to the communication path determined in the debugging phase. After receiving the second data information, the upper-level concentrator compares the ID numbers. If they are consistent, a data response is sent to the concentrator, and the upper-level concentrator passes the second data information step by step to the last-level concentrator. The last-level concentrator sends the second data information to the receiver.

[0013] Optionally, after receiving the second data information, the upper-level concentrator performs an ID number comparison, and if they are consistent, sends a data response to the concentrator, and the upper-level concentrator transmits the second data information to the last-level concentrator step by step, including:

[0014] The superior concentrator that receives the second data information compares the ID number in the second data information with its own ID number, and sends a data response to the concentrator if they are consistent, and does not process if they are inconsistent.

[0015] Optionally, if the upper-level concentrator receives the same second data information, it processes the second data information only once.

[0016] Optionally, the content of the data response includes: the ID number of the upper-level concentrator and sending success information.

[0017] Optionally, the upper-level concentrator of the last-level concentrator is a receiver, and the last-level concentrator stores the ID number of the receiver and its own ID number.

[0018] Optionally, it also includes: after the receiver receives the second data information, it reads the timestamp, and the receiver sends third data information to the data background, and the third data information includes: collector ID number, time, and lightning arrester status information.

[0019] The beneficial effects of the present invention are:

[0020] During installation, there is no need to consider the ID sequence and pairing of the collector, concentrator and receiver, which can improve the installation efficiency of the equipment;

[0021] By adopting this self-organizing network strategy, the system can realize autonomous networking through only one debugging process, which improves the stability of system data transmission; that is, after the collector, concentrator and receiver are installed, only one debugging is needed to confirm that the concentrator and its upper concentrator can be operated to complete the transmission of data information, thus ensuring the accuracy of data;

[0022] According to the self-organizing network strategy, after pairing, the data transmission mode is fixed, and the wireless data is sent and received in a directionally manner, which improves the efficiency of data sending and receiving, thereby reducing the power consumption during data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A flow chart of a communication method for an online monitoring system of a line lightning arrester provided in an embodiment of the present invention;

[0024] Figure 2 The present invention is a schematic diagram of a communication method for an online monitoring system of a line lightning arrester provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0026] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0027] It should be understood that the present invention can be implemented in different forms and should not be interpreted as being limited to the embodiments proposed herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and the scope of the present invention will be fully conveyed to those skilled in the art. And the purpose of the terms used herein is only to describe specific embodiments and is not intended to be a limitation of the present invention. When used herein, the singular forms of "one", "one" and "said / the" are also intended to include plural forms, unless the context clearly indicates another way. It should also be understood that the terms "compose" and / or "include" when used in this specification determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0028] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0029] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0030] Example

[0031] Please refer to the attached Figure 1 and Figure 2 The present invention provides a communication method for an online monitoring system of a line lightning arrester, comprising the following steps:

[0032] Debugging the concentrator so that the concentrator stores the ID number of the upper concentrator with which the communication path exists and the concentrator's own ID number;

[0033] The collector broadcasts first data information externally, wherein the first data information includes the ID number of the collector and the arrester status information;

[0034] After receiving the first data information from the collector, at least one of the concentrators uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver.

[0035] Specifically, the arrester online monitoring system includes multiple sensors, which are used to collect parameters such as current, voltage, temperature and humidity of the arrester. The sensors can send the collected data information to the collector. When there is no lightning strike, the collector is usually in a dormant state, that is, the sensor does not collect data, and the sensor does not send information to the collector; when a lightning strike occurs, the sensors in the arrester online monitoring system collect data and send the collected data information to the collector, and the collector integrates the received data information into the first data information; then the collector broadcasts the first data information to the outside, and all concentrators within a certain range can receive the first data information, and at least one concentrator that receives the first data information will upload the second data information step by step according to the communication path determined in the debugging phase until the second data information is finally sent to the receiver.

[0036] As an optional implementation, the arrester status information includes voltage data, current data, pressure data, vibration data, lightning strike intensity data, temperature data, and humidity data of the arrester;

[0037] Specifically, the voltage data can be used to obtain the voltage environment of the lightning arrester to ensure whether it is working under normal voltage; the current data can be used to measure the insulation degree of the lightning arrester; the pressure data can help determine whether the pressure of the lightning arrester is normal, the vibration data can be used to determine whether the internal parts of the lightning arrester are loose, the lightning strike intensity can be used to understand the impact of lightning strikes on the lightning arrester, and the temperature and humidity data can be used to understand whether the operating environment of the lightning arrester is normal. The above-mentioned lightning arrester status information obtained can predict potential faults, realize the monitoring of the lightning arrester, and avoid the occurrence of power system accidents caused by lightning arrester damage, thereby improving the reliability of the power system.

[0038] In an optional implementation, the arrester status information may also include battery power information of the arrester, so that the battery power of the arrester can be obtained during data transmission to ensure that the arrester will not interrupt operation due to insufficient power.

[0039] As an optional implementation, after receiving the first data information from the collector, the at least one concentrator uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver, including:

[0040] After at least one of the concentrators receives the first data information from the collector, it sends the second data information to the upper-level concentrator according to the communication path determined in the debugging phase. After receiving the second data information, the upper-level concentrator compares the ID numbers. If they are consistent, a data response is sent to the concentrator, and the upper-level concentrator passes the second data information step by step to the last-level concentrator. The last-level concentrator sends the second data information to the receiver.

[0041] After receiving the second data information, the upper concentrator performs an ID number comparison, and if the ID number is consistent, sends a data response to the concentrator, and the upper concentrator transmits the second data information to the last concentrator level by level, including:

[0042] The superior concentrator that receives the second data information compares the ID number in the second data information with its own ID number, and sends a data response to the concentrator if they are consistent, and does not process if they are inconsistent.

[0043] If the upper-level concentrator receives the same second data information, it processes the second data information only once.

[0044] The content of the data response includes: the ID number of the upper-level concentrator and the sending success information.

[0045] It should be noted that all concentrators and receivers have unique ID numbers, and collectors, concentrators and receivers have different category identifiers (e.g. C001 for collector 1; B001 for concentrator 1; A001 for receiver) to distinguish collectors, concentrators and receivers; the information received and sent by concentrators and receivers has the format of "flash1+flash2+valid transmission information";

[0046] When the collector broadcasts the first data information, all concentrators in a certain area can receive the first data information. The concentrator that receives the first data information will send the second data information "flash1+collector ID number+arrester status information" to the upper-level concentrator according to the upper-level concentrator determined by the debugging status. The upper-level concentrator compares the ID number in flash1 with its own ID number. If the comparison is consistent, flash1 is changed to the number of the higher-level concentrator, and then the information is sent to the higher-level concentrator. In this way, it is sent step by step and finally sent to the receiver. When the comparison is consistent, the lower-level concentrator sends its own ID number and ok information, indicating that the second data information sent by the lower-level concentrator has been successfully received. If the OK information from the lower-level concentrator is received, the receiving status is returned. The concentrator can transmit information to the last-level concentrator through this step-by-step information transmission method, and the last-level concentrator sends the second data information to the receiver.

[0047] In the process of the second data information being transmitted step by step between the concentrators, when the concentrator sends the second data information, other concentrators may also receive the second data information, but only its upper concentrator will save and process the second data information, and other concentrators will not process the second data information even if they receive it, and return to a dormant state, thereby reducing the power consumption of other concentrators;

[0048] In order to avoid the concentrator from repeatedly saving the same second data information, when the concentrator receives the same second data information, it will only process the same second data information once, that is, after saving the second data information, it will only send it to its upper concentrator once, so as to avoid repeated forwarding of data;

[0049] In the actual application of the existing lightning arrester monitoring system, since the collector, concentrator and receiver all have only unique ID numbers, and the concentrator needs to be installed and paired in the ID sequence during actual installation, it is rather troublesome. In the present invention, the concentrator can be installed in a non-fixed ID sequence, and each concentrator is configured with an upper-level concentrator, so that information is continuously forwarded upward through the upper-level concentrator, and finally the information is sent to the receiver. In actual application, there is no need to consider the issue of ID number sequence, which is more convenient.

[0050] As an optional implementation, the upper level concentrator of the last level concentrator is a receiver, and the last level concentrator stores the ID number of the receiver and its own ID number;

[0051] Specifically in practical applications, the number of the last-level concentrators can be determined according to actual needs, that is, according to factors such as distance range. Since the ultimate goal is to transmit data to the receiver through the concentrator, the upper-level concentrator of the last-level concentrator is the receiver.

[0052] As an optional implementation, it also includes: after the receiver receives the second data information, it reads the timestamp, and the receiver sends third data information to the data background, and the third data information includes: collector ID number, time, and lightning arrester status information.

[0053] The concentrator is debugged so that the concentrator saves the ID of the superior concentrator with the communication path and its own ID. Specifically, the ID number of the superior concentrator and its own ID number are saved in the concentrator. After debugging, each concentrator saves the ID number of the superior concentrator and its own ID number, so that each concentrator can establish communication with its superior concentrator.

[0054] Specifically, the receiver has two states: debugging and running. Before running, the concentrator needs to be debugged to determine the parent concentrator of each concentrator; switch the receiver to the debugging state. In the debugging state, the collector does not collect the monitoring data in the arrester online monitoring system, and will not send the data to the concentrator. Therefore, the format of the information sent by the concentrator is "flash1+flash2";

[0055] Exemplarily, the debug button of receiver A is pressed, A transmits the signal "AID", the third concentrator receives the signal of receiver A, and performs the saving operation: AID is saved to the first position of flash1, the third concentrator 3ID is saved to the second position of flash2, and then the signal "AID+concentrator 3ID" is transmitted;

[0056] The fourth concentrator receives the signal from receiver A and performs a save operation: similarly saves AID to the first position of flash1 and saves concentrator 4ID to the second position of flash; then transmits the signal "AID+concentrator 4ID";

[0057] The second concentrator receives the signal of the third concentrator "AID+concentrator 3ID", and performs the saving operation: saves the third concentrator 3ID to the first position of the flash, and saves the second concentrator 2ID to the second position of the flash; then transmits the signal "concentrator 3ID+concentrator 2ID";

[0058] The fourth concentrator receives the signal "AID+concentrator 3ID" from the third concentrator, checks its own flash, and finds that the data "AID+concentrator 4ID" is already in the flash. It does not save the data, but transmits the signal "AID+concentrator 4ID", so that after the fifth concentrator receives the information, it saves the fourth concentrator 4ID to the first position of the flash, and saves the fifth concentrator 5ID to the second position of the flash, and so on.

[0059] Concentrator 1 receives the signal of "Concentrator 3 ID + Concentrator 2 ID" from Concentrator 2, saves Concentrator 2 ID to the first position of flash, saves its own ID to the second position of flash, and then transmits the signal "Concentrator 2 ID + Concentrator 1 ID";

[0060] The rest is analogous (i.e., after the debugging process, each concentrator's flash stores the ID of the superior concentrator that can establish communication and its own ID information); the flash status of each concentrator is shown in Table 1 below:

[0061] Table 1 Flash status of each concentrator

[0062] equipment Flash1 Flash2 First concentrator Concentrator 2ID Concentrator 1 ID Second concentrator Concentrator 3ID Concentrator 2ID The third concentrator AID Concentrator 3ID The fourth concentrator AID Concentrator 4ID

[0063] During the debugging process, the concentrator will send a return message to indicate that the information has been successfully received; specifically: after 30 seconds to 1 minute, each concentrator sends the "Flash1+Flash2+#ID" message. After the corresponding concentrator receives the message, it compares the flash1 and flash2ID in the message with its own ID. If there is, it sends a "send successful" message, changes flash1 and flash2 to the ID content in its own flash, and sends the "Flash1+Flash2+#ID" message. If the same #ID message is received, it will only be sent once.

[0064] Finally, it is transmitted to the receiver A device, and the concentrator ID that has been successfully debugged is read out by computer; if a missing concentrator ID is found, it means that the ID cannot transmit data due to transmission distance problems. You can add another concentrator and then continue the debugging process.

[0065] After debugging, the superior concentrator of the first concentrator is the second concentrator, the superior concentrator of the second concentrator is the third concentrator, the superior concentrator of the third concentrator is the receiver, and the superior concentrator of the fourth concentrator is the receiver. That is to say, when the receiver switches to the running state, the collector collects information and broadcasts the first data information to the outside. If the first concentrator receives it, the first concentrator will send the second data information to the second concentrator, the second concentrator will send the second data information to the third concentrator, the third concentrator will send the second data information to the receiver, and the receiver will send the third data information to the background.

[0066] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A communication method for an online monitoring system of a line lightning arrester, characterized in that: The following steps are involved: Debugging the concentrator so that the concentrator stores the ID number of the upper concentrator with which the communication path exists and the concentrator's own ID number; The collector broadcasts first data information externally, wherein the first data information includes the ID number of the collector and the arrester status information; After receiving the first data information from the collector, at least one of the concentrators uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver.

2. A communication method for an online monitoring system of a line lightning arrester according to claim 1, characterized in that: The arrester status information includes voltage data, current data, pressure data, vibration data, lightning strike intensity data, temperature data, and humidity data of the arrester.

3. A communication method for an online monitoring system of a line lightning arrester according to claim 1, characterized in that: After receiving the first data information from the collector, the at least one concentrator uploads the second data information step by step according to the communication path determined in the debugging stage until it is finally transmitted to the receiver, including: After at least one of the concentrators receives the first data information from the collector, it sends the second data information to the upper-level concentrator according to the communication path determined in the debugging phase. After receiving the second data information, the upper-level concentrator compares the ID numbers. If they are consistent, a data response is sent to the concentrator, and the upper-level concentrator passes the second data information step by step to the last-level concentrator. The last-level concentrator sends the second data information to the receiver.

4. A communication method for an online monitoring system of a line lightning arrester according to claim 3, characterized in that: After receiving the second data information, the upper concentrator performs an ID number comparison, and if the ID number is consistent, sends a data response to the concentrator, and the upper concentrator transmits the second data information to the last concentrator level by level, including: The superior concentrator that receives the second data information compares the ID number in the second data information with its own ID number, and sends a data response to the concentrator if they are consistent, and does not process if they are inconsistent.

5. A communication method for an online monitoring system of a line lightning arrester according to claim 3, characterized in that: If the upper-level concentrator receives the same second data information, it processes the second data information only once.

6. A communication method for an online monitoring system of a line lightning arrester according to claim 3, characterized in that: The content of the data response includes: the ID number of the upper-level concentrator and the sending success information.

7. A communication method for an online monitoring system of a line lightning arrester according to claim 3, characterized in that: The upper level concentrator of the last level concentrator is a receiver, and the last level concentrator stores the ID number of the receiver and its own ID number.

8. A communication method for an online monitoring system of a line lightning arrester according to claim 1, characterized in that: Also includes: After receiving the second data information, the receiver reads the timestamp, and sends the third data information to the data background, wherein the third data information includes: collector ID number, time, and arrester status information.

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