A method and device for determining the maintenance of a telecontrol device

Abstract

The present invention discloses a method and device for determining the maintenance of a telecontrol device, which relates to the technical field of substation safety. The method comprises: in response to the received first frame message data, determining the next frame message data corresponding to the first frame message data; adjusting the total number of request messages and calculating the time interval according to the reversal and increment between the flag bit of the next frame message data and the flag bit of the first frame message data; determining whether the target telecontrol device needs to be analyzed for defects according to the existence of new message data after the next frame message data. By counting all the response times and average response times in the request messages received by the substation in one day, it is evaluated whether the telecontrol device needs to be overhauled.

Description

Technical Field

[0001] The present invention relates to the field of substation safety technology, and in particular to a method and device for determining the maintenance of a telecontrol device. Background Art

[0002] The telesignaling and telemetering data of the substation are collected by the telecontrol device and sent to the power dispatching automation system through the telecontrol message data link. Based on these data, the power system dispatcher monitors the entire network in real time. At the same time, the voltage and reactive power control system (AVC system) will also refer to the telemetry data to adjust the substations of the entire network to ensure that the power grid operates at a safe and stable level.

[0003] At present, the 101 and 104 communication protocols are widely used to regulate the communication between the telecontrol device and the power dispatching automation system. These two communication protocols stipulate the priority of the uploaded data, that is, the more important data, such as link initialization message, general call message, etc., are uploaded first, while the less important data such as telemetry changes will be uploaded later. At the same time, because the 104 protocol is based on the TCP / IP network protocol transmission, and the 101 protocol is based on the Modem frequency modulation device to realize signal transmission, the data transmission rate of the 104 protocol is much higher than that of the 101 protocol. Therefore, in reality, for the substation equipped with two communication channels 101 and 104, the 104 channel has priority on duty, while the 101 channel is in standby status. In this way, under normal operation, if the configuration of the station-side telecontrol motor and the main station front-end system is improper due to human factors, the substation telecontrol motor message response time will be long and delayed, but it is not easy to be discovered by the operation and maintenance personnel, so there is a great safety hazard; at the same time, when the channel quality deteriorates or a switch trip occurs at the station, if the substation-side telecontrol device simultaneously sends a large number of telesignaling and telemetry messages, the station-side telecontrol motor response time will be greatly extended for the data request message and remote control message at the main station. When the telecontrol device has a long message response time, the remote control response timeout and key telemetry changes cannot be sent in time, and the power system dispatcher cannot perform switch remote control, which directly affects the normal operation of the dispatching core business.

[0004] The traditional solution to the above problem is to wait for the automation maintenance personnel or the power system dispatcher to find that the telecontrol device of a substation does not report back from the alarm window or the event window, and then take corresponding measures, such as manually calling the general call or notifying the substation operator to check the telecontrol device. Obviously, the traditional method is relatively backward and inefficient, and will consume a lot of manpower and maintenance costs. Summary of the invention

[0005] The present invention provides a method and device for determining the maintenance of a telecontrol device, which monitors the operating status of a substation telecontrol device in real time, detects telecontrol devices with manual configuration errors and telecontrol devices with unqualified concurrent transmission, and solves the problem of long telecontrol device message response time when a power grid trips.

[0006] In a first aspect, the present invention provides a method for determining the maintenance of a telecontrol device, comprising:

[0007] S1, in response to a received first frame of message data, determining a next frame of message data corresponding to the first frame of message data;

[0008] S2, adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data;

[0009] S3, determining whether there is new message data after the next frame message data; if so, executing step S4; if not, executing step S5;

[0010] S4, adjusting the total number of request messages and calculating the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; returning to step S3;

[0011] S5, taking the quotient of all the time intervals and the total number of request messages as the average response time, and determining whether a defect analysis is required for the target telecontrol device based on the average response time and all the time intervals.

[0012] Optionally, the step S1 includes:

[0013] S11, extracting a corresponding flag bit from the first frame of message data;

[0014] S12: Determine the next frame of message data according to the flag bit of the first message data.

[0015] Optionally, step S4 includes:

[0016] S41, detecting whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, executing step S42; if so, executing step S43;

[0017] S42, detecting whether the flag bit of the next frame message data and the flag bit of the new message data increase by a scale of 8; if so, executing step S43; if not, discarding the new message data;

[0018] S43, increasing the total number of request messages by one unit and calculating the time interval.

[0019] Optionally, step S5 includes:

[0020] S51, determining the number of time intervals greater than the average response time among all the time intervals;

[0021] S52: Determine whether the target telecontrol device needs to be subjected to defect analysis according to the number of time intervals.

[0022] Optionally, the step S52 includes:

[0023] S521, determining a proportion of time intervals greater than the average response time based on the number of time intervals and the average response time;

[0024] S522, determining whether the time interval ratio is greater than a preset ratio; if so, determining that the target remote control device needs to be overhauled; if not, determining that the target remote control device does not need to be overhauled.

[0025] In a second aspect, the present invention further provides a maintenance determination device for a telecontrol device, comprising:

[0026] A response module, configured to determine, in response to the received first frame of message data, a next frame of message data corresponding to the first frame of message data;

[0027] A first adjustment module, used for adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data;

[0028] A judging module, used to judge whether there is new message data after the next frame message data; if so, execute the second adjustment module; if not, execute the defect analysis and determination module;

[0029] The second adjustment module is used to adjust the total number of request messages and calculate the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; return to execute the judgment module;

[0030] The defect analysis determination module is used to take the quotient of all the time intervals and the total number of request messages as the average response time, and determine whether the target remote control device needs to be defect analyzed based on the average response time and all the time intervals.

[0031] Optionally, the response module includes:

[0032] An extraction submodule, used for extracting a corresponding flag bit from the first frame message data;

[0033] The first message determination submodule is used to determine the next frame of message data according to the flag bit of the first message data.

[0034] Optionally, the second adjustment module includes:

[0035] A first detection submodule is used to detect whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, the second detection submodule is executed; if yes, the adjustment submodule is executed;

[0036] The second detection submodule detects whether the flag bit of the next frame message data and the flag bit of the new message data increase by a scale of 8; if so, the adjustment submodule is executed; if not, the new message data is discarded;

[0037] The adjustment submodule increases the total number of request messages by one unit and calculates the time interval.

[0038] Optionally, the defect analysis and determination module:

[0039] A quantity determination submodule, used to determine the number of time intervals greater than the average response time among all the time intervals;

[0040] The defect analysis determination submodule is used to determine whether the target telecontrol device needs to be defect analyzed according to the number of time intervals.

[0041] Optionally, the defect analysis and determination submodule includes:

[0042] a proportion determining unit, configured to determine a proportion of time intervals greater than the average response time based on the number of time intervals and the average response time;

[0043] The judgment unit is used to judge whether the proportion of the time interval is greater than a preset proportion; if so, it is determined that the target remote control device needs to be repaired; if not, it is determined that the target remote control device does not need to be repaired.

[0044] It can be seen from the above technical solutions that the present invention has the following advantages:

[0045] The present invention determines the next frame of message data corresponding to the first frame of message data in response to the received first frame of message data through S1; S2, according to the reversal and increment between the flag bit of the next frame of message data and the flag bit of the first frame of message data, adjusts the total number of request messages and calculates the time interval; S3, determines whether there is new message data after the next frame of message data; if so, executes step S4; if not, executes step S5; S4, according to the flag bit of the next frame of message data and the flag bit of the new message data, adjusts the total number of request messages and calculates the time interval; returns to step S3; S5, takes the quotient of all the time intervals and the total number of request messages as the average response time, and determines whether the target remote control device needs to be defect analyzed according to the average response time and all the time intervals. By counting all the response times and average response times in the request messages received by the substation in one day, it is evaluated whether there is a need for maintenance of the remote control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 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 in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 A flowchart of the steps of Embodiment 1 of a method for determining the maintenance of a telecontrol device of the present invention;

[0048] Figure 2 A flowchart of the steps of Embodiment 2 of a method for determining the maintenance of a telecontrol device according to the present invention;

[0049] Figure 3 The present invention is a structural block diagram of an embodiment of a maintenance determination device for a telecontrol device of the present invention. DETAILED DESCRIPTION

[0050] The embodiment of the present invention provides a method and device for determining the maintenance of a telecontrol device, which monitors the operating status of a substation telecontrol device in real time, detects telecontrol devices with manual configuration errors and telecontrol devices with unqualified concurrent transmission, and solves the problem of long telecontrol device message response time when a power grid trips.

[0051] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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.

[0052] Although the 101 and 104 communication protocols widely used at present are within acceptable ranges under normal circumstances, that is, when the data volume of the communication link between the telemotor at the substation and the automation master station is not large and the channel operation quality is good, the response time of the telesignaling change, SOE, and remote control response messages at the substation end will be within acceptable ranges, but there are two problems in actual application: 1. Under normal operation, due to improper configuration of the station-end telemotor and the master station front-end system caused by human factors, the substation telemotor message response time is long and delayed, and this situation is not easy to be discovered by the operation and maintenance personnel, which poses a great safety hazard; 2. When the channel quality deteriorates or a switch tripping event occurs at the station end, the telecontrol device at the substation end simultaneously sends a large number of telesignaling and telemetry messages. For the data request message and remote control message at the master station end, the response time of the station-end telemotor is greatly extended. Such telecontrol devices can be considered to have defects. When the telecontrol device has a long message response time, the remote control response timeout and key telemetry changes cannot be sent in time, and the power system dispatcher cannot perform switch remote control, which directly affects the normal operation of the dispatching core business.

[0053] The methods currently used to solve this problem are relatively backward and inefficient, and will consume a lot of manpower and maintenance costs. Therefore, a maintenance determination method for a telecontrol device of the present invention is proposed:

[0054] See also Figure 1 , Figure 1 This is a flowchart of a first embodiment of a method for determining the maintenance of a telecontrol device of the present invention, which may specifically include the following steps:

[0055] Step S1, in response to the received first frame of message data, determining the next frame of message data corresponding to the first frame of message data;

[0056] In an optional embodiment, the step S1 includes:

[0057] S11, extracting a corresponding flag bit from the first frame of message data;

[0058] S12: Determine the next frame of message data according to the flag bit of the first message data.

[0059] In an embodiment of the present invention, the program reads the substation message document received on the previous day from the historical server of the electric power dispatching automation system, obtains all the telesignaling, telemetering, and telecontrol data therein according to the type identification of each frame message, and provides initial material for data analysis, that is, saves the message data saved by the front-end system in the electric power dispatching automation system on the previous day, and then divides all the message data according to the substation, and performs statistics and analysis on the message data of each substation.

[0060] In a specific implementation, when a user inputs a detection instruction to the remote control device, the first frame of message data will be determined, and the flag bit will be used as key information to determine the next frame of message data after the first frame of message data.

[0061] Of course, in actual applications, there may be a situation where there is no next frame of message data after the first frame of message data. In this case, the current first frame of message data is discarded and the first frame of message data is re-determined.

[0062] Step S2, adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data;

[0063] Step S3, determining whether there is new message data after the next frame message data; if so, executing step S4; if not, executing step S5;

[0064] Step S4, adjusting the total number of request messages and calculating the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; returning to step S3;

[0065] Step S5, taking the quotient of all the time intervals and the total number of request messages as the average response time, and determining whether the target telecontrol device needs to be analyzed for defects based on the average response time and all the time intervals.

[0066] The embodiment of the present invention determines the next frame of message data corresponding to the first frame of message data in response to the received first frame of message data through S1; S2, according to the reversal and increment between the flag bit of the next frame of message data and the flag bit of the first frame of message data, adjusts the total number of request messages and calculates the time interval; S3, determines whether there is new message data after the next frame of message data; if so, executes step S4; if not, executes step S5; S4, according to the flag bit of the next frame of message data and the flag bit of the new message data, adjusts the total number of request messages and calculates the time interval; returns to step S3; S5, takes the quotient of all the time intervals and the total number of request messages as the average response time, and determines whether the target telecontrol device needs to be defect analyzed according to the average response time and all the time intervals. By counting all the response times and average response times in the request messages received by the substation in one day, it is evaluated whether there is a need for maintenance of the telecontrol device.

[0067] See also Figure 2 , is a flowchart of the steps of Embodiment 2 of a method for determining the maintenance of a telecontrol device of the present invention, which specifically includes:

[0068] Step S201, in response to the received first frame of message data, determining the next frame of message data corresponding to the first frame of message data;

[0069] Step S202, adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data;

[0070] Step S203, determining whether there is new message data after the next frame message data; if so, executing step S204; if not, executing step S205;

[0071] Step S204, adjusting the total number of request messages and calculating the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; returning to step S203;

[0072] In an optional embodiment, the step S204 includes:

[0073] S2041, detecting whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, executing step S2042; if so, executing step S2043;

[0074] S2042, detecting whether the flag bit of the next frame message data and the flag bit of the new message data increase in a scale of 8; if so, executing step S2043; if not, discarding the new message data;

[0075] S2043: Increase the total number of request messages by one unit and calculate the time interval.

[0076] It should be noted that when the automation master station front-end system communicates with the substation remote motor based on the 101 and 104 protocols, according to the specific flag bit of the message, for example, for the 101 message, when the master station sends the first frame request message with the flag bit of 7B, after receiving the message of the substation remote motor's response, the master station will reverse the message's flag bit to 5B in the next frame and send it, and so on. The situation is similar for the 104 message. When the master station sends the first frame request message with the flag bit sequence number of 10088, after receiving the 8-frame message of the substation remote motor's response, the master station will add the message's flag bit sequence number to 10096 in the next frame and send it.

[0077] In an embodiment of the present invention, the first frame of message data is read, and according to the flag bit of the request message sent from the master station to the remote motor in the first frame of the message, the corresponding next frame of request message data is found, and it is detected whether the flag bits of the two frames of messages are reversed or increased by a scale of 8. If so, the total number of request messages is increased by 1, the number of response messages is increased by 1, and the time interval between the two frames of messages is calculated and stored in the database, and the next frame of request message is read for analysis.

[0078] Step S205, determining the number of time intervals greater than the average response time among all the time intervals;

[0079] In an embodiment of the present invention, if any of the recorded time intervals is greater than the recorded maximum message response time, it is replaced by the new maximum message response time and stored in the database; if it is less than the recorded minimum message response time, it is replaced by the new minimum message response time and stored in the database.

[0080] Step S206: Determine whether the target telecontrol device needs to be analyzed for defects based on the number of time intervals.

[0081] In an optional embodiment, the step S206 includes:

[0082] Based on the number of time intervals and the average response time, determining a proportion of time intervals that are greater than the average response time;

[0083] Determine whether the time interval ratio is greater than a preset ratio; if so, determine that the target remote control device needs to be repaired; if not, determine that the target remote control device does not need to be repaired.

[0084] In an embodiment of the present invention, the time intervals are accumulated to obtain the total message response time, and the total message response time is divided by the total number of request messages (i.e., the total number of responded request messages finally recorded in the database in one day) to obtain the average response time and store it in the database; then, the number of times the time interval is greater than the average response time is determined and divided by the total number of request messages to obtain the proportion of time intervals greater than the average response time and store it in the database.

[0085] Since the unanswered request messages mainly include remote control request messages, key telesignal changes and telemetering messages, which are the data that the power system dispatchers focus on, once a non-response occurs, it involves important situations such as switch remote control and tripping accident event analysis. Therefore, when the time interval greater than the average response time accounts for more than 70%, it can be considered that the remote control device has defects and needs immediate testing and maintenance.

[0086] In addition, after completing the analysis of the above-mentioned one frame of request message, continue to read the next frame of request message and analyze it until all request messages of the substation on that day are analyzed.

[0087] In a method for determining the maintenance of a telecontrol device provided in an embodiment of the present invention, through S1, in response to the received first frame message data, the next frame message data corresponding to the first frame message data is determined; S2, according to the reversal and increment between the flag bit of the next frame message data and the flag bit of the first frame message data, the total number of request messages is adjusted and the time interval is calculated; S3, it is determined whether there is new message data after the next frame message data; if so, step S4 is executed; if not, step S5 is executed; S4, according to the flag bit of the next frame message data and the flag bit of the new message data, the total number of request messages is adjusted and the time interval is calculated; return to step S3; S5, the quotient of all the time intervals and the total number of request messages is taken as the average response time, and according to the average response time and all the time intervals, it is determined whether the target telecontrol device needs to be analyzed for defects. By counting all the response times and the average response time in the request messages received by the substation in one day, it is evaluated whether there is a need for maintenance of the telecontrol device.

[0088] See also Figure 3 , shows a structural block diagram of an embodiment of a maintenance determination device for a telecontrol device, including the following modules:

[0089] A response module 401 is used to determine, in response to the received first frame of message data, a next frame of message data corresponding to the first frame of message data;

[0090] A first adjustment module 402, configured to adjust the total number of request messages and calculate the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data;

[0091] The judgment module 403 is used to judge whether there is new message data after the next frame message data; if so, the second adjustment module is executed; if not, the defect analysis and determination module is executed;

[0092] The second adjustment module 404 is used to adjust the total number of request messages and calculate the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; return to execute the judgment module;

[0093] The defect analysis determination module 405 is used to take the quotient of all the time intervals and the total number of request messages as the average response time, and determine whether the target remote control device needs to be defect analyzed based on the average response time and all the time intervals.

[0094] In an optional embodiment, the response module 401 includes:

[0095] An extraction submodule, used for extracting a corresponding flag bit from the first frame message data;

[0096] The first message determination submodule is used to determine the next frame of message data according to the flag bit of the first message data.

[0097] In an optional embodiment, the second adjustment module 404 includes:

[0098] A first detection submodule is used to detect whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, the second detection submodule is executed; if yes, the adjustment submodule is executed;

[0099] The second detection submodule detects whether the flag bit of the next frame message data and the flag bit of the new message data increase by a scale of 8; if so, the adjustment submodule is executed; if not, the new message data is discarded;

[0100] The adjustment submodule increases the total number of request messages by one unit and calculates the time interval.

[0101] In an optional embodiment, the defect analysis and determination module 405:

[0102] A quantity determination submodule, used to determine the number of time intervals greater than the average response time among all the time intervals;

[0103] The defect analysis determination submodule is used to determine whether the target telecontrol device needs to be defect analyzed according to the number of time intervals.

[0104] In an optional embodiment, the defect analysis determination submodule includes:

[0105] a proportion determining unit, configured to determine a proportion of time intervals greater than the average response time based on the number of time intervals and the average response time;

[0106] The judgment unit is used to judge whether the proportion of the time interval is greater than a preset proportion; if so, it is determined that the target remote control device needs to be repaired; if not, it is determined that the target remote control device does not need to be repaired.

[0107] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0108] In the several embodiments provided by the present invention, it should be understood that the disclosed 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 through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0109] 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.

[0110] In addition, each functional unit in each embodiment of the present invention 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.

[0111] 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 invention 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. The computer software product is stored in a storage medium, including several instructions for 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 invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0112] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. 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 invention.

Claims

1. A method for determining the maintenance of a telecontrol device, characterized in that: include: S1, in response to a received first frame of message data, determining a next frame of message data corresponding to the first frame of message data; S2, adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data; S3, determining whether there is new message data after the next frame of message data; If yes, go to step S4; if no, go to step S5; S4, adjusting the total number of request messages and calculating the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; Return to step S3; S5, taking the quotient of all the time intervals and the total number of request messages as the average response time, and determining whether the target telecontrol device needs to be subjected to defect analysis according to the average response time and all the time intervals; The step S1 comprises: S11, extracting a corresponding flag bit from the first frame of message data; S12, determining the next frame of message data according to the flag bit of the first frame of message data; The step S4 comprises: S41, detecting whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, executing step S42; if so, executing step S43; S42, detecting whether the flag bit of the next frame message data and the flag bit of the new message data increase by a scale of 8; if so, executing step S43; if not, discarding the new message data; S43, increasing the total number of request messages by one unit and calculating the time interval.

2. The method for determining the maintenance of a telecontrol device according to claim 1, characterized in that: The step S5 comprises: S51, determining the number of time intervals greater than the average response time among all the time intervals; S52: Determine whether the target telecontrol device needs to be subjected to defect analysis according to the number of time intervals.

3. The method for determining the maintenance of a telecontrol device according to claim 2, characterized in that: The step S52 comprises: S521, determining a proportion of time intervals greater than the average response time based on the number of time intervals and the average response time; S522, determining whether the time interval ratio is greater than a preset ratio; if so, determining that the target remote control device needs to be repaired; if not, determining that the target remote control device does not need to be repaired.

4. A maintenance determination device for a telecontrol device, characterized in that: include: A response module, configured to determine, in response to the received first frame of message data, a next frame of message data corresponding to the first frame of message data; A first adjustment module, used for adjusting the total number of request messages and calculating the time interval according to the inversion and increment between the flag bit of the next frame message data and the flag bit of the first frame message data; A judging module, used to judge whether there is new message data after the next frame message data; if so, execute the second adjustment module; if not, execute the defect analysis and determination module; The second adjustment module is used to adjust the total number of request messages and calculate the time interval according to the flag bit of the next frame message data and the flag bit of the new message data; Return to execute the judgment module; The defect analysis determination module is used to take the quotient of all the time intervals and the total number of request messages as the average response time, and determine whether the target telecontrol device needs to be defect analyzed based on the average response time and all the time intervals; The response module comprises: An extraction submodule, used for extracting a corresponding flag bit from the first frame message data; A first message determination submodule, used to determine the next frame of message data according to the flag bit of the first frame of message data; The second adjustment module includes: A first detection submodule is used to detect whether the flag bit of the next frame message data and the flag bit of the new message data are inverted; if not, the second detection submodule is executed; if yes, the adjustment submodule is executed; The second detection submodule detects whether the flag bit of the next frame message data and the flag bit of the new message data increase by a scale of 8; if so, the adjustment submodule is executed; if not, the new message data is discarded; The adjustment submodule increases the total number of request messages by one unit and calculates the time interval.

5. The maintenance determination device for a telecontrol device according to claim 4, characterized in that: The defect analysis and determination module: A quantity determination submodule, used to determine the number of time intervals greater than the average response time among all the time intervals; The defect analysis determination submodule is used to determine whether the target telecontrol device needs to be defect analyzed according to the number of time intervals.

6. The maintenance determination device for a telecontrol device according to claim 5, characterized in that: The defect analysis determination submodule includes: a proportion determining unit, configured to determine a proportion of time intervals greater than the average response time based on the number of time intervals and the average response time; The judgment unit is used to judge whether the proportion of the time interval is greater than a preset proportion; if so, it is determined that the target remote control device needs to be repaired; if not, it is determined that the target remote control device does not need to be repaired.

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