A monitoring method and system for the problem of distribution network automation switch measurement not refreshing

Abstract

The present application discloses a monitoring method and system for the problem of non-refresh measurement of distribution network automation switch, including: obtaining the RTU list corresponding to the running automation switch, the corresponding relationship table between RTU and automation switch, sorting each RTU in the RTU list to generate an RTU monitoring sorting table; obtaining the telemetry attention value set of the preset RTU to be monitored according to the RTU monitoring sorting table and saving it as the first moment telemetry attention value set, responding to the protocol general call command, obtaining the telemetry attention value set of the preset RTU to be monitored after the preset telemetry change waiting time and saving it as the second moment telemetry attention value set; calculating the telemetry attention change value set of each preset RTU to be monitored according to the first moment telemetry attention value set and the second moment telemetry attention value set; obtaining the status of each preset RTU to be monitored according to the telemetry attention change value set, and obtaining the status of the automation switch based on the corresponding relationship table and the RTU status. The problem of low inspection efficiency and poor monitoring reliability in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a monitoring method and system for the problem of non-refresh measurement of distribution network automation switches. Background Art

[0002] Modern society has higher and higher requirements for the reliability of power supply of power grids. It is extremely important to timely discover the fault points of the power grid and automatically locate the faults according to the topological connection relationship of the distribution network. Among them, the telemetry and telesignaling signals sent to the master station during the fault range positioning and voltage loss judgment of the distribution network automation switch are the key signals for fault positioning. If the distribution network automation switch cannot send the telemetry and telesignaling change signals in time due to various reasons, it will easily affect the fault range positioning of the distribution network and the voltage loss judgment of the line.

[0003] With existing technology, if the problem of distribution network automation switch telemetry not being refreshed is found, it is necessary to conduct regular inspections manually on site. On-site staff will conduct primary or secondary circuit volume test, and then call the master station to inquire whether the telemetry is refreshed, so as to determine whether the distribution network automation switch telemetry is not refreshed abnormally. However, since the distribution network automation switches in operation are generally scattered and numerous, it is not easy to carry out regular inspections of equipment.

[0004] In addition, general distribution network automation switches are installed on distribution lines with actual loads. In daily life, the load of the distribution lines will have slight load fluctuations at different times. Although such slight load fluctuations can be reflected through the telemetry values ​​collected by the distribution network automation switches, such as I, U, P, Q and other collected measurements, during the protocol upload process, the load fluctuations are too small and do not cross the telemetry dead zone, resulting in such slight load fluctuations not necessarily being sent to the main station in time, which may easily lead to the inability to monitor the abnormality of the distribution network automation switch measurement not being refreshed. Summary of the invention

[0005] The present application provides a monitoring method and system for the problem of non-refresh measurement of distribution network automation switches, which are used to solve the technical problems of low inspection efficiency and poor monitoring reliability in the prior art.

[0006] In view of this, the first aspect of the present application provides a method for monitoring the problem of non-refresh measurement of distribution network automation switches, the method comprising:

[0007] S1. Obtain an RTU list corresponding to the automation switches in distribution network operation and a correspondence table between RTUs and automation switches, sort each RTU in the RTU list, and generate a first RTU monitoring sorting table;

[0008] S2. According to the RTU first monitoring sorting table, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the first moment telemetry attention value set. In response to the protocol general call command, after the preset telemetry change waiting time, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the second moment telemetry attention value set.

[0009] S3. Calculate each preset RTU telemetry attention change value set to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment;

[0010] S4. Analyze the RTU telemetry focus change value set to obtain the state of each preset RTU to be monitored, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

[0011] Optionally, after step S4, the method further includes: sending the status of the automation switch to equipment operation and maintenance personnel.

[0012] Optionally, step S4 specifically includes:

[0013] When each RTU telemetry concern change value in the RTU telemetry concern change value set is zero, the RTU is determined to be an abnormal state RTU;

[0014] Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

[0015] Optionally, after step S4, the method further includes:

[0016] Generate an RTU second monitoring sorting table, and replace the RTU second monitoring sorting table with the RTU first monitoring sorting table, and then execute steps S2 to S4 to obtain a second state of the automatic switch;

[0017] When both the first state and the second state are abnormal states, the RTU is determined to be an abnormal state RTU.

[0018] Optionally, the telemetry focus value set specifically includes: three-phase current, three-phase voltage, power and work.

[0019] A second aspect of the present application provides a monitoring system for the problem of distribution network automation switch measurement not being refreshed, the system comprising:

[0020] A corresponding relationship table of the automatic switches, sorting each RTU in the RTU list, and generating a first monitoring sorting table of the RTUs;

[0021] an acquisition module, configured to acquire a preset telemetry attention value set of the RTU to be monitored according to the RTU first monitoring sorting table and save it as the first moment telemetry attention value set, and respond to the protocol general call command, after a preset telemetry change waiting time, acquire the preset telemetry attention value set of the RTU to be monitored and save it as the second moment telemetry attention value set;

[0022] A calculation module, used for calculating each preset RTU telemetry attention change value set to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment;

[0023] The first analysis module is used to analyze and obtain the state of each preset RTU to be monitored according to the RTU telemetry focus change value set, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

[0024] Optionally, it also includes: a sending module, used to send the status of the automation switch to the equipment operation and maintenance personnel.

[0025] Optionally, the first analysis module is specifically used to:

[0026] When each RTU telemetry concern change value in the RTU telemetry concern change value set is zero, the RTU is determined to be an abnormal state RTU;

[0027] Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

[0028] Optionally, the method further comprises: a second analysis module, configured to:

[0029] When each RTU telemetry attention change value in the RTU telemetry attention change value set is zero, the RTU is determined to be an abnormal state RTU;

[0030] Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

[0031] Optionally, the telemetry focus value set specifically includes: three-phase current, three-phase voltage, power and work.

[0032] It can be seen from the above technical solutions that this application has the following advantages:

[0033] The present application provides a method for monitoring the problem of distribution network automation switch measurement not being refreshed, comprising:

[0034] S1. Obtain the RTU list corresponding to the automation switch in the distribution network operation and the correspondence table between the RTU and the automation switch, sort each RTU in the RTU list, and generate the RTU first monitoring sorting table;

[0035] S2. According to the RTU first monitoring sorting table, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the telemetry attention value set at the first moment. In response to the protocol general call command, after the preset telemetry change waiting time, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the telemetry attention value set at the second moment.

[0036] S3. Calculate the telemetry attention change value set of each preset RTU to be monitored based on the telemetry attention value set at the first moment and the telemetry attention value set at the second moment; S4. Analyze the telemetry attention change value set to obtain the status of each preset RTU to be monitored, and obtain the first status of the automation switch corresponding to each preset RTU to be monitored based on the correspondence table and the RTU status.

[0037] The monitoring method for the problem of distribution network automation switch measurement not being refreshed of the present application establishes a set of analysis rules, in which the system actively initiates a telemetry collection request, and then automatically calculates whether there is a situation in which the telemetry of the distribution network automation switch in operation cannot be refreshed, thereby enabling the system to actively discover abnormalities in telemetry collection and actively notify the operation and maintenance personnel to carry out maintenance, so as to reduce the workload of the operation and maintenance personnel's inspections and regular inspections; at the same time, due to the total call of the automation system's protocol, the telemetry dead zone can be ignored, and the latest status of the distribution network automation switch can be directly sent to the main station; thereby solving the technical problems of low inspection efficiency and poor monitoring reliability in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A flow chart of Embodiment 1 of a monitoring method for a distribution network automation switch measurement non-refresh problem provided in an embodiment of the present application;

[0039] Figure 2 A flow chart of Embodiment 2 of a monitoring method for a distribution network automation switch measurement non-refresh problem provided in an embodiment of the present application;

[0040] Figure 3 Provided in an embodiment of the present application is a structural schematic diagram of an embodiment of a monitoring system for the problem of non-refresh measurement of distribution network automation switches. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Terminology explanation:

[0043] General call: also known as protocol general call, is the status inquiry actively initiated by the master station to the RTU during the question-and-answer protocol communication process such as 101 and 104. After the terminal RTU receives the general call command, it does not matter whether the telemetry crosses the dead zone, and must report the latest telemetry and telesignaling status of the RTU.

[0044] Telemetry dead zone: The telemetry dead zone is the threshold value of telemetry change. It is the standard value used to determine whether the telemetry has changed. It is a technical measure to prevent the RTU from frequently sending telemetry changes.

[0045] Sudden telemetry transmission: When the master station sends a status change query to the RTU, the RTU needs to compare the latest telemetry value with the comparison value (the telemetry value last updated and sent to the master station). If the absolute value of the difference between the latest telemetry and the comparison value is greater than the telemetry dead zone setting value, the latest telemetry value should be actively transmitted and the comparison value should be updated. Otherwise, the comparison value should remain unchanged and the latest telemetry value should not be transmitted.

[0046] See also Figure 1 , Embodiment 1 of a monitoring method for a distribution network automation switch measurement non-refresh problem provided in an embodiment of the present application includes:

[0047] Step 101: obtain an RTU list corresponding to the automation switches in the distribution network operation and a correspondence table between the RTUs and the automation switches, sort each RTU in the RTU list, and generate an RTU first monitoring sorting table;

[0048] Step 102: According to the RTU first monitoring sorting table, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the first moment telemetry attention value set; in response to the protocol general call command, after the preset telemetry change waiting time, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the second moment telemetry attention value set;

[0049] Step 103, calculating each preset RTU telemetry attention change value set to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment;

[0050] Step 104: Analyze the telemetry attention change value set to obtain the state of each preset RTU to be monitored, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

[0051] The following is an example description provided in Example 1:

[0052] Step S1: Set the number k of RTUs that can initiate a general call at the same time, and set the telemetry change waiting time Tw;

[0053] Step S2: Set the telemetry values ​​of interest in the RTU, such as Ia, Ib, Ic or Ua, Ub, Uc, P, Q, etc.;

[0054] Step S3: Apply for a list of all running distribution network automation switches from the dispatching automation system or the distribution network dispatching automation system;

[0055] Step S4: Apply for the RTU list corresponding to all the running distribution network automation switches from the dispatching automation system or the distribution network dispatching automation system, and form a monitoring list, sort each RTU, and form an RTU monitoring sorting table (RTU first monitoring sorting table); obtain the corresponding relationship table between RTU and switch from the dispatching automation system or the distribution network dispatching automation system;

[0056] Step S5: The master station reads the telemetry attention values ​​of RTUs n to n+k in the dispatching automation system or the distribution network dispatching automation system according to the RTU monitoring sorting table, and writes them into the telemetry cache at time T0;

[0057] Step S6: Initiate a protocol general call command for RTUs n to n+k, wait for Tw telemetry change waiting delay, read the telemetry attention value of RTUs n to n+k in the dispatching automation system or the distribution network dispatching automation system, and write it into the telemetry cache at time T1;

[0058] Step S7: Detect the telemetry values ​​of interest at time T0 of RTUs n to n+k and the values ​​of interest at time T1 of Ia, Ib, Ic or Ua, Ub, Uc, P, Q, and subtract the telemetry values ​​of interest at time T1 from the telemetry values ​​of interest at time T0 to obtain the telemetry change values ​​of interest ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1 of RTUs n to n+k at time T1;

[0059] Step S8: Detect whether the concerned telemetry change values ​​(such as ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1) in RTUs n to n+k are 0. If the concerned telemetry change values ​​in a certain RTU are all 0, it is determined that the RTU is abnormal.

[0060] Step S9: repeat steps S5 to S8 to complete all RTU abnormality monitoring in the RTU monitoring sorting table in step S4, and obtain an RTU abnormality list;

[0061] Step S11: query the RTU and distribution network automation switch correspondence table in step S4, and find out that the distribution network automation switch corresponding to the abnormal RTU is the distribution network automation switch that does not refresh the telemetry;

[0062] Step S12: Repeat steps S1 to S11 to continuously scan abnormal network distribution automation switches whose telemetry is not refreshed.

[0063] The above is Example 1 of a monitoring method for the problem of non-refresh measurement of distribution network automation switches provided in an embodiment of the present application. The above is Example 2 of a monitoring method for the problem of non-refresh measurement of distribution network automation switches provided in an embodiment of the present application.

[0064] See also Figure 2 , Embodiment 2 of a monitoring method for a distribution network automation switch measurement non-refresh problem provided in an embodiment of the present application includes:

[0065] Step 201: Obtain an RTU list corresponding to the automation switches in the distribution network operation, and a correspondence table between the RTUs and the automation switches, sort each RTU in the RTU list, and generate an RTU first monitoring sorting table;

[0066] Step 202: According to the RTU first monitoring sorting table, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the first moment telemetry attention value set; in response to the protocol general call command, after the preset telemetry change waiting time, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the second moment telemetry attention value set;

[0067] Step 203: Calculate the telemetry attention change value set of each preset RTU to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment;

[0068] Step 204: Analyze the telemetry attention change value set to obtain the state of each preset RTU to be monitored, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

[0069] Step 205, generate an RTU second monitoring sorting table, and replace the RTU second monitoring sorting table with the RTU first monitoring sorting table, and then execute steps 202 to 204 to obtain the second state of the automatic switch;

[0070] Step 206: When both the first state and the second state are abnormal states, the RTU is determined to be an abnormal state RTU, and the state of the automation switch is sent to the equipment operation and maintenance personnel.

[0071] The following is a practical example provided based on the second embodiment:

[0072] Step S1: Set the number of RTUs that can initiate a general call at the same time k = 10, and set the telemetry change waiting time Tw = 40 seconds;

[0073] Step S2: Set the telemetry values ​​of interest in the RTU to: Ia, Ib, Ic or Ua, Ub, Uc, P, Q;

[0074] Step S3: Apply for a list of all distribution network automation switches in operation from the dispatching automation system or the distribution network dispatching automation system, such as obtaining 10,000 distribution network automation switches with device IDs of KG10001 to KG20000;

[0075] Step S4: Apply for the RTU list corresponding to all the distribution network automation switches in operation from the dispatching automation system or the distribution network dispatching automation system to form an RTU monitoring sorting table (RTU first monitoring sorting table); obtain the RTU and switch pair relationship table from the dispatching automation system; for example: the RTU device IDs corresponding to the distribution network automation switches with device IDs of KG10001 to KG20000 are RTU0001 to RTU2000, a total of 2000 units, and each RTU corresponds to a different switch;

[0076] Step S5: the master station reads the dispatching automation system or the distribution network dispatching automation system according to the RTU monitoring sorting table; starting from RTU0001 to RTU0010, the telemetry attention values ​​Ia, Ib, Ic or Ua, Ub, Uc, P, Q of these 10 RTUs are read, and written into the telemetry cache at time T0 RTU0001 (Ia0, Ib0, Ic0 or Ua0, Ub0, Uc0, P0, Q0), RTU0002 (Ia0, Ib0, Ic0 or Ua0, Ub0, Uc0, P0, Q0), ..., RTU0010 (Ia0, Ib0, Ic0 or Ua0, Ub0, Uc0, P0, Q0);

[0077] Step S6: initiate a protocol general call command to RTUs RTU0001 to RTU0010, wait for 40 seconds (Tw) of telemetry change waiting delay, re-read the telemetry attention values ​​Ia, Ib, Ic or Ua, Ub, Uc, P, Q of RTUs RTU0001 to RTU0010 in the dispatching automation system or the distribution network dispatching automation system, and write them into the telemetry cache at time T1, RTU0001 (Ia1, Ib1, Ic1 or Ua1, Ub1, Uc1, P1, Q1), RTU0002 (Ia1, Ib1, Ic1 or Ua1, Ub1, Uc1, P1, Q1), ..., RTU0010 (Ia1, Ib1, Ic1 or Ua1, Ub1, Uc1, P1, Q1);

[0078] Step S7: Detect the telemetry change values ​​ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1 of interest in RTUs RTU0001 to RTU0010, including RTU0001 (ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1), RTU0002 (ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1), ..., RTU0010 (ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1);

[0079] Step S8: Check whether the telemetry change values ​​of RTUs RTU0001 to RTU0010 are 0. If RTU0002 (ΔIa1, ΔIb1, ΔIc1 or ΔUa1, ΔUb1, ΔUc1, ΔP1, ΔQ1) are all 0, then RTU0002 is determined to be an abnormal RTU;

[0080] Step S9: repeat steps S5 to S8 to complete the abnormal monitoring of all RTUs in the RTU monitoring sorting table in step S4, and obtain an abnormal RTU list, such as detecting RTU0002 and RTU0111 as abnormal RTUs;

[0081] Step S10: Repeat step S4 to generate a new monitoring list (RTU second monitoring sorting list), and then repeat steps S5 to S8 according to the new list to obtain a new RTU abnormal list, such as detecting RTU0002 and RTU0222 as abnormal RTUs;

[0082] Step S11: Determine the 2nd abnormality list, and list the RTU with two consecutive telemetry abnormalities as abnormal RTU, that is, RTU0002 is the abnormal RTU; query the corresponding table of RTU and distribution network automation switch in step S4, such as: the switch corresponding to RTU0002 is KG10005~KG10009, then the distribution network automation switch KG10005~KG10009 is the distribution network automation switch whose telemetry is not refreshed, and notify the equipment operation and maintenance personnel to inspect and maintain the distribution network automation switches KG10005~KG10009 and their protection devices through the alarm system or alarm SMS;

[0083] Step S12: Repeat steps S1 to S11 to continuously scan abnormal network distribution automation switches whose telemetry is not refreshed.

[0084] The above is Embodiment 2 of a monitoring method for the problem of non-refresh measurement of distribution network automation switches provided in an embodiment of the present application, and the above is Embodiment 2 of a monitoring system for the problem of non-refresh measurement of distribution network automation switches provided in an embodiment of the present application.

[0085] See also Figure 3 , a monitoring system embodiment for the problem of non-refresh measurement of distribution network automation switches provided in the embodiments of the present application includes:

[0086] A generating module 301 is used to obtain an RTU list corresponding to the automation switch in the distribution network operation, and a corresponding relationship table between the RTU and the automation switch, sort each RTU in the RTU list, and generate a first monitoring sorting table of the RTUs;

[0087] The acquisition module 302 is used to acquire the telemetry attention value set of the preset RTU to be monitored according to the RTU first monitoring sorting table and save it as the telemetry attention value set at the first moment, and respond to the protocol general call command, after the preset telemetry change waiting time, acquire the telemetry attention value set of the preset RTU to be monitored and save it as the telemetry attention value set at the second moment;

[0088] A calculation module 303 is used to calculate each preset RTU telemetry concern change value set to be monitored according to the telemetry concern value set at the first moment and the telemetry concern value set at the second moment;

[0089] The first analysis module 304 is used to analyze and obtain the state of each preset RTU to be monitored according to the telemetry focus change value set, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

[0090] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0091] The terms "first", "second", "third", "fourth", etc. in the specification of the present application 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 application described herein can be implemented in an order other than those illustrated or described herein, for example. 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 comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0092] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0093] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0094] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0095] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0096] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, English abbreviation: ROM), random access memory (full name in English: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program codes.

[0097] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A monitoring method for the problem of distribution network automation switch measurement not being refreshed, characterized in that: include: S1. Obtain an RTU list corresponding to the automation switches in distribution network operation and a correspondence table between RTUs and automation switches, sort each RTU in the RTU list, and generate a first RTU monitoring sorting table; S2. According to the RTU first monitoring sorting table, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the first moment telemetry attention value set. In response to the general call command of the protocol, after the preset telemetry change waiting time, the telemetry attention value set of the preset RTU to be monitored is obtained and saved as the second moment telemetry attention value set. S3. Calculate each preset RTU telemetry attention change value set to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment; S4. Analyze the RTU telemetry focus change value set to obtain the state of each preset RTU to be monitored, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

2. The monitoring method for the problem of distribution network automation switch measurement not being refreshed according to claim 1 is characterized in that: After step S4, the method further includes: sending the status of the automation switch to the equipment operation and maintenance personnel.

3. The monitoring method for the problem of distribution network automation switch measurement not being refreshed according to claim 1 is characterized in that: Step S4 specifically includes: When each RTU telemetry concern change value in the RTU telemetry concern change value set is zero, the RTU is determined to be an abnormal state RTU; Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

4. The monitoring method for the problem of distribution network automation switch measurement not being refreshed according to claim 3 is characterized in that: After step S4, the method further includes: Generate an RTU second monitoring sorting table, and replace the RTU second monitoring sorting table with the RTU first monitoring sorting table, and then execute steps S2 to S4 to obtain a second state of the automatic switch; When both the first state and the second state are abnormal states, the RTU is determined to be an abnormal state RTU.

5. The monitoring method for the problem of distribution network automation switch measurement not being refreshed according to claim 1 is characterized in that: The telemetry focus value set specifically includes: three-phase current, three-phase voltage, power and work.

6. A monitoring system for the problem of distribution network automation switch measurement not being refreshed, characterized in that: include: A generation module, used to obtain an RTU list corresponding to the automation switch in the distribution network operation, and a correspondence table between the RTU and the automation switch, sort each RTU in the RTU list, and generate a first monitoring sorting table of the RTU; an acquisition module, configured to acquire a preset telemetry attention value set of the RTU to be monitored according to the RTU first monitoring sorting table and save it as the first moment telemetry attention value set, and respond to the general call command of the protocol, and after a preset telemetry change waiting time, acquire the preset telemetry attention value set of the RTU to be monitored and save it as the second moment telemetry attention value set; A calculation module, used for calculating each preset RTU telemetry attention change value set to be monitored according to the telemetry attention value set at the first moment and the telemetry attention value set at the second moment; The first analysis module is used to analyze and obtain the state of each preset RTU to be monitored according to the RTU telemetry focus change value set, and obtain the first state of the automation switch corresponding to each preset RTU to be monitored based on the corresponding relationship table and the RTU state.

7. The monitoring system for the problem of distribution network automation switch measurement not being refreshed according to claim 6 is characterized in that: Also includes: The sending module is used to send the status of the automation switch to the equipment operation and maintenance personnel.

8. The monitoring system for the problem of distribution network automation switch measurement not being refreshed according to claim 6 is characterized in that: The first analysis module is specifically used for: When each RTU telemetry concern change value in the RTU telemetry concern change value set is zero, the RTU is determined to be an abnormal state RTU; Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

9. The monitoring system for the problem of distribution network automation switch measurement not being refreshed according to claim 8 is characterized in that: Also includes: The second analysis module is used to: When each RTU telemetry concern change value in the RTU telemetry concern change value set is zero, the RTU is determined to be an abnormal state RTU; Based on the corresponding relationship table, the automation switch corresponding to the abnormal state RTU is obtained and it is determined that the problematic automation switch is not to be refreshed.

10. The monitoring system for the problem of distribution network automation switch measurement not being refreshed according to claim 6, characterized in that: The telemetry focus value set specifically includes: three-phase current, three-phase voltage, power and work.

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