CN115314362A - Remote scheduling terminal fault detection method and system based on telemetry network - Google Patents

Remote scheduling terminal fault detection method and system based on telemetry network Download PDF

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Publication number
CN115314362A
CN115314362A CN202210946149.3A CN202210946149A CN115314362A CN 115314362 A CN115314362 A CN 115314362A CN 202210946149 A CN202210946149 A CN 202210946149A CN 115314362 A CN115314362 A CN 115314362A
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fault
terminal
fault detection
detection
remote
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CN115314362B (en
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曾时博
舒然
洪丹轲
黄昱
张思拓
范俊成
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China Southern Power Grid Co Ltd
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China Southern Power Grid Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0631Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0604Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
    • H04L41/0622Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time based on time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/069Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

The invention provides a remote dispatching terminal fault detection method and system based on a telemetry network, which relate to the technical field of power dispatching terminal fault detection.

Description

Remote scheduling terminal fault detection method and system based on telemetry network
Technical Field
The invention relates to the technical field of power dispatching terminal fault detection, in particular to a remote dispatching terminal fault detection method and system based on a telemetry network.
Background
With the continuous development of power dispatching, the upper computer of the power office center monitors the operation condition of each remote station through a power communication network, and a large number of remote dispatching stations are unattended. In order to guarantee the reliability of unattended operation, on one hand, the power communication network is required to be capable of accurately and reliably transmitting monitoring information and has strong anti-attack capability, so that the concept of the power dispatching private network is developed at the same time, and the reliable dispatching communication between the power local center and the remote station is guaranteed; on the other hand, a complete fault detection mechanism is required to be arranged in the remote station, the detection result can be fed back to the power office center according to the actual condition, and the power office center can make a timely response instruction for feeding back the fault condition.
At present, a traditional power dispatching troubleshooting mechanism is relatively perfect, for example, a dispatching system of a power overhauling task is disclosed in the prior art, the scheme is based on the traditional work order dispatching form of an overhauling project, overhauling work is distributed through a general dispatching platform, an overhauling project dispatching platform, a handheld terminal and an overhauling group queue, and the overhauling work is dispatched to the overhauling group, so that the troubleshooting work is guaranteed to be completed in time, meanwhile, the emergency can be dealt with, overhauling resources are utilized to the maximum extent, and the work efficiency of the overhauling work is improved. However, most of the unattended remote dispatching stations are remote and dispersed, the traditional mode of dispatching the fault maintenance work order is not suitable, and in addition, a large number of dispatching terminals are arranged in the remote stations, so that the dispatching work maintenance efficiency is low, and great challenges are brought to fault detection of the remote dispatching terminals.
The remote measurement refers to a technology for transmitting a short-distance measurement value of an object parameter to a long-distance measurement station to realize long-distance measurement, and the technology integrates information management, modern communication, automatic control and computer application. In power dispatching, the transmission of remote monitoring information based on a private power network is a hierarchical mechanism, all levels of dispatching mechanisms are different, but each level has application of a telemetry technology, such as front-end execution, information transmission, information processing, telemechanical configuration and man-machine interaction control, the development of the telemetry technology provides an excellent management means for power dispatching, particularly in the aspect of fault detection of dispatching terminals of remote stations, a plurality of corresponding terminal detection front ends are configured at each remote station, the terminal detection front ends are used for carrying out real-time fault detection on the dispatching terminals, and then the detection information is fed back to a power office center through the private power network. However, since the dispatching terminals in the remote station are complex and various, not all faults will affect the normal operation of the remote station immediately, but the layout of the power dispatching private network is not as wide as the traditional communication network, and the power dispatching private network bears more pressure, if each terminal detection front end performs real-time fault detection, and performs real-time processing on the detected faults, the processing complexity of the whole dispatching system and the operation cost of the dispatching system will be increased, and the fault detection results of each terminal detection front end are very different and good, and the fault detection information of one plane may affect the processing of the whole power dispatching system on the faults, which is not favorable for ensuring the reliability of power dispatching.
Disclosure of Invention
In order to solve the problems existing in the current mode of carrying out fault detection on a remote station scheduling terminal based on a telemetry technology, the invention provides a remote scheduling terminal fault detection method and system based on a telemetry network.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
a remote scheduling terminal fault detection method based on a telemetry network comprises the following steps:
s1, counting historical fault data of a scheduling terminal in a remote scheduling station, and classifying faults in the historical fault data to obtain fault classification types;
s2, dividing the fault classification type into two levels of scheduling terminal fault detection responses, respectively packaging the two levels of scheduling terminal fault detection responses into a primary fault detection instruction and a secondary fault detection instruction, and storing the primary fault detection instruction and the secondary fault detection instruction to an upper computer of a center of the power local side;
s3, a terminal detection front end receives a primary fault detection instruction and a secondary fault detection instruction sent by a power station center upper computer, and detects the fault condition of a remote station scheduling terminal in real time;
s4, the terminal detection front end feeds back the fault detection condition information to a terminal processing unit, the terminal processing unit marks the fault detection condition information corresponding to the primary fault detection instruction, and the fault detection condition information corresponding to the secondary fault detection instruction is not marked;
s5, the terminal processing unit forwards the marked fault condition information and the unmarked fault condition information to a central upper computer of the power office, and the central upper computer of the power office identifies and stores the marked fault condition information and simultaneously gives an alarm to workers;
s6, the upper computer of the power station center identifies unmarked fault condition information and issues a secondary fault detection instruction again;
s7, the terminal detection front end detects the fault condition of the scheduling terminal in the remote station under the secondary fault detection instruction in real time, and the fault condition information corresponding to the secondary fault detection instruction is fed back to the upper computer of the center of the power station side through the terminal processing unit;
s8, the upper computer of the power station center judges whether the information of the fault conditions detected by the scheduling terminal in the remote station under the two secondary fault detection instructions is consistent, if so, the upper computer formally stores the information of the fault conditions corresponding to the secondary fault detection instructions and forwards the information to a worker for warning after the timing trigger moment comes; otherwise, storing the fault condition information corresponding to the secondary fault detection instruction after the timing trigger moment comes, and turning to background manual verification of the fault item.
In the scheme, firstly, fault classification is carried out based on historical fault data of a scheduling terminal in a remote station, so that two levels of classification of fault detection response of the scheduling terminal can be carried out more clearly and more orderly, one class of the classified faults to be detected corresponds to a primary fault detection instruction, the other class of the classified faults to be detected corresponds to a secondary fault detection instruction, and after a terminal detection front end receives the primary fault detection instruction and the secondary fault detection instruction sent by a central upper computer of a power central office, the fault condition of the scheduling terminal of the remote station is detected in real time, namely, fault detection carried out in the remote station is real-time; then, by means of whether the terminal processing unit marks the fault detection condition information or not, real-time and timing processing of the fault detection condition information on the upper computer of the central upper computer of the power station side is achieved, processing capacity of a dispatching system is reasonably distributed, cost is saved, and meanwhile reliability of power dispatching is guaranteed.
Preferably, when the historical fault data of the scheduling terminal in the remote scheduling site is counted in step S1, a year span T is set, and the historical fault data of the scheduling terminal in the remote scheduling site under the year span T is counted forward with a current year as a starting point, where the historical fault data includes hardware fault data, external interface fault data, and software fault data; the fault classification types comprise hardware faults, external interface faults and software faults, wherein the hardware faults comprise network cable fracture, unmatched connecting cables, terminal joint loosening and hub damage; software failures include dialing failures, network anomalies and server failures; the external interface faults include serial-parallel interface faults, USB port faults and power interface faults.
Preferably, in step S2, an urgency level threshold is set, a failure whose processing urgency is greater than the urgency level threshold among a hardware failure, a software failure, and an external interface failure is determined, and an instruction to be subjected to such a failure to be detected is encapsulated as a primary failure detection instruction; and determining the faults of which the processing urgency degree is less than or equal to the urgency degree grade threshold in the hardware faults, the software faults and the external interface faults, and packaging the commands to be subjected to the faults to be detected into secondary fault detection commands.
After the determined fault classification type and the inclusion condition of the faults under each type are determined, the fault processing urgency is judged according to the influence degree of the monitoring result, the caused harm chain reaction degree and the like based on the fault processing urgency, and the two levels of the fault detection response of the scheduling terminal can be more clearly and more orderly divided.
Preferably, the processing urgency level of the to-be-detected fault corresponding to the primary fault detection instruction is higher than the processing urgency level of the to-be-detected fault corresponding to the secondary fault detection instruction, in step S3, the terminal detection front end detects whether the to-be-detected fault corresponding to the primary fault detection instruction and the to-be-detected fault corresponding to the secondary fault detection instruction exist in the remote site scheduling terminal in real time, and records fault condition information.
Preferably, in step S8, the evaluation criterion for consistency of information of the detected fault condition of the scheduling terminal in the remote site under the two secondary fault detection instructions is as follows: 1) The fault classification types of the faults detected by the scheduling terminal in the remote station under the secondary fault detection instruction of two times are the same; 2) And the fault codes of the dispatching terminals in the remote sites for detecting the faults under the two secondary fault detection instructions are the same.
Preferably, the power office central host computer identifies the marked fault condition information, after an alarm is given to a worker, the power office central host computer filters and clears the stored fault condition information, the moment when the power office central host computer clears and filters the stored fault condition information is used as a timing trigger moment, the timing trigger process is implemented based on task formulation of a dynamic timer, the power office central host computer identifies the marked fault condition information, after the alarm is given to the worker, the power office central host computer filters and clears the stored fault condition information, the process duration is used as a low-level timing duration of the dynamic timer, the moment when the power office central host computer clears and filters the stored fault condition information is used as a timing trigger moment, the low level of the dynamic timer is changed into a high level, and the power office central host computer formally stores and forwards the fault condition information corresponding to the secondary fault detection instruction to the worker, and gives an alarm.
The application also provides a remote scheduling terminal fault detection system based on the telemetry network, the system includes:
the terminal detection front end is arranged in the remote site and used for detecting the fault condition of the remote site scheduling terminal in real time;
the terminal processing unit is connected with the terminal detection front end and used for receiving the fault condition of the remote station dispatching terminal detected by the terminal detection front end in real time, processing the fault condition and forwarding the processed fault detection condition information to the upper computer of the center of the power office end;
the central upper computer of the power local side is connected with the terminal processing unit, realizes fault remote measurement from a remote station to the central upper computer of the power local side together with the terminal detection front end and the terminal processing unit based on a power dispatching private network, identifies and analyzes received fault detection condition information, and gives an alarm to a worker;
the upper computer at the power local side is also internally provided with a historical fault counting module which is used for counting historical fault data of a scheduling terminal in a remote scheduling station and classifying faults in the historical fault data to obtain fault classification types;
based on fault classification types, dividing the fault detection response into two levels of scheduling terminal fault detection responses, respectively packaging the fault detection responses into a primary fault detection instruction and a secondary fault detection instruction for storage, sending the primary fault detection instruction and the secondary fault detection instruction to a terminal detection front end by a central upper computer of a power local side, and detecting the fault condition of a remote station scheduling terminal in real time by the terminal detection front end.
Preferably, the terminal detection front end includes a plurality of detection interfaces and a detection signal conversion unit, each detection interface of the plurality of detection interfaces is connected with the detection signal conversion unit, and the detection signal conversion unit receives a fault signal detected by the detection interface and performs filtering processing on the fault signal.
Preferably, the processing, by the terminal processing unit, of the remote site scheduling terminal fault condition detected by the terminal detection front end in real time includes: and marking the fault detection condition information corresponding to the primary fault detection instruction, and not marking the fault detection condition information corresponding to the secondary fault detection instruction.
Preferably, when the upper computer of the power office center identifies and analyzes the received fault detection condition information, the marked fault condition information is identified and stored, meanwhile, an alarm is given to a worker, the unmarked fault condition information is identified, and the secondary fault detection instruction is sent to the front terminal detection end of the remote station through the terminal processing unit again, so that the secondary retesting of the fault condition under the secondary fault detection instruction is realized.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the invention provides a remote dispatching terminal fault detection method and system based on a telemetry network, fault classification is carried out based on historical fault data of dispatching terminals in remote stations, two-level division of dispatching terminal fault detection response is conveniently and clearly carried out, one class of divided faults to be detected correspond to a primary fault detection instruction, the other class of faults to be detected correspond to a secondary fault detection instruction, and after a terminal detection front end receives the primary fault detection instruction and the secondary fault detection instruction issued by a central upper computer of a power central office, the fault condition of the dispatching terminals of the remote stations is detected in real time, namely, fault detection carried out in the remote stations is real-time; then, by means of whether the terminal processing unit marks the fault detection condition information or not, real-time and timing processing of the fault detection condition information on the upper computer of the central upper computer of the power station side is achieved, response processing capacity of a dispatching system is reasonably distributed, cost is saved, and meanwhile reliability of power dispatching is guaranteed.
Drawings
Fig. 1 is a schematic flow chart of a remote scheduling terminal fault detection method based on a telemetry network in embodiment 1 of the present invention;
fig. 2 is a schematic diagram illustrating dynamic timer triggering based on information of a fault detection condition filtered and cleared by an upper computer in a power office center according to embodiment 2 of the present invention;
fig. 3 is a block diagram of a remote scheduling terminal fault detection system based on a telemetry network according to embodiment 3 of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for better illustration of the present embodiment, certain parts of the drawings may be omitted, enlarged or reduced, and do not represent actual dimensions;
it will be understood by those skilled in the art that certain well-known descriptions of the figures may be omitted.
The positional relationships depicted in the drawings are for illustrative purposes and are not to be construed as limiting the present patent;
the technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, this embodiment proposes a remote scheduling terminal fault detection method based on a telemetry network, and referring to fig. 1, the method includes the following steps:
s1, counting historical fault data of a scheduling terminal in a remote scheduling station, and classifying faults in the historical fault data to obtain fault classification types;
specifically, when historical fault data of scheduling terminals in a remote scheduling site are counted, a year span T is set, and historical fault data of the scheduling terminals in the remote scheduling site under the year span T are counted forward with a current year as a starting point, for example, in this embodiment, an actual remote plant is used as a remote site, 20XX years are used as a year starting point, and fault data of the site in the last 5 years before 20XX years are counted with the past 5 years as a year span, where the historical fault data includes hardware fault data, external interface fault data, and software fault data; the fault classification types comprise hardware faults, external interface faults and software faults, wherein the hardware faults comprise network cable fracture, unmatched connecting cables, loose terminal connectors and damaged hubs; the software faults comprise dialing failure, network abnormity and server faults, and the external interface faults comprise serial-parallel port faults, USB port faults and power interface faults. In the private power network dispatching, main software faults are concentrated in dialing failures which may be caused by hardware faults, such as network cable breakage, unstable signals, unmatched connecting cables of dialing equipment terminals, loose connectors and the like, different error codes exist in the dialing failures, and different fault expressions and reasons are corresponded, for example, an error 619 shows that the connection with a server cannot be established. The above fault classification types facilitate the more clear and more orderly division of the two levels of the fault detection response of the scheduling terminal, namely, the step S2 is executed:
s2, dividing the dispatching terminal into two levels of fault detection responses based on fault classification types, respectively packaging the two levels of fault detection responses into a primary fault detection instruction and a secondary fault detection instruction, and storing the primary fault detection instruction and the secondary fault detection instruction to a central upper computer of the power local side;
in step S2, setting an emergency degree level threshold, determining a fault of which the processing emergency degree is greater than the emergency degree level threshold in hardware faults, software faults and external interface faults, and packaging a command to be subjected to the fault to be detected into a primary fault detection command; and determining the faults with the processing urgency degree less than or equal to the urgency degree grade threshold in the hardware faults, the software faults and the external interface faults, and packaging the commands to be subjected to the faults to be detected into secondary fault detection commands. After the determined fault classification type and the inclusion condition of faults under each type are determined, the fault processing emergency degree is judged according to the influence degree of a monitoring result, the caused damage chain reaction degree and the like, two-level division of fault detection response of the dispatching terminal can be performed more clearly and more orderly, a general emergency degree level threshold value is determined as a moderate fault occurrence condition, under the threshold value, the fault can be not processed temporarily and can be self-healed along with time, such as dialing failure under manual operation failure, but faults corresponding to the emergency degree exceeding the threshold value cannot be self-healed along with time, under severe conditions, great adverse chain reaction can be caused, such as network cable breakage, connection cable mismatching, terminal joint loosening, hub damage, network abnormity, server fault, power interface fault and the like, faults corresponding to the emergency degree not exceeding the threshold value do not have the self-healing condition along with time, after the faults occur, the faults can be abandoned automatically, and the self-weakening capability of the terminal can be gradually abandoned along with time, and more faults of parallel ports and USB (USB) need to be processed as necessary.
S3, a terminal detection front end receives a primary fault detection instruction and a secondary fault detection instruction sent by a power station center upper computer, and detects the fault condition of a remote station scheduling terminal in real time; in step S3, the urgent degree of processing of the to-be-detected fault corresponding to the primary fault detection instruction is higher than the urgent degree of processing of the to-be-detected fault corresponding to the secondary fault detection instruction, and the terminal detection front end detects whether the to-be-detected fault corresponding to the primary fault detection instruction and the to-be-detected fault corresponding to the secondary fault detection instruction exist in the remote site scheduling terminal in real time and records fault condition information.
S4, the terminal detection front end feeds back the fault detection condition information to a terminal processing unit, the terminal processing unit marks the fault detection condition information corresponding to the primary fault detection instruction, and the fault detection condition information corresponding to the secondary fault detection instruction is not marked;
s5, the terminal processing unit forwards the marked fault condition information and the unmarked fault condition information to a central upper computer of the power office, and the central upper computer of the power office identifies and stores the marked fault condition information and simultaneously gives an alarm to workers;
s6, the upper computer of the power station center identifies unmarked fault condition information and issues a secondary fault detection instruction again;
s7, the terminal detection front end detects the fault condition of the scheduling terminal in the remote station under the secondary fault detection instruction in real time, and the fault condition information corresponding to the secondary fault detection instruction is fed back to the upper computer of the center of the power station side through the terminal processing unit;
s8, the upper computer of the power station center judges whether the information of the fault conditions detected by the scheduling terminal in the remote station under the two secondary fault detection instructions is consistent, if so, the upper computer formally stores the information of the fault conditions corresponding to the secondary fault detection instructions and forwards the information to a worker for warning after the timing trigger moment comes; otherwise, storing the fault condition information corresponding to the secondary fault detection instruction after the timing trigger moment comes, and turning to the background manual verification of the fault item.
In step S8, the evaluation criterion for the consistency of the information of the detected fault condition of the scheduling terminal in the remote site under the two secondary fault detection instructions is as follows: 1) The fault classification types of the faults detected by the scheduling terminal in the remote station under the secondary fault detection instruction of two times are the same; 2) And the fault codes of the dispatching terminals in the remote sites for detecting the faults under the two secondary fault detection instructions are the same.
Overall, in this embodiment, firstly, fault classification is performed based on historical fault data of the scheduling terminal in the remote site, so that two levels of classification of fault detection response of the scheduling terminal can be performed more clearly and more orderly, one class of the classified faults to be detected corresponds to a primary fault detection instruction, the other class of the faults to be detected corresponds to a secondary fault detection instruction, and after the terminal detection front end receives the primary fault detection instruction and the secondary fault detection instruction issued by the central upper computer of the power central office, the fault condition of the scheduling terminal of the remote site is detected in real time, that is, fault detection performed in the remote site is real-time; then, by means of whether the terminal processing unit marks the fault detection condition information or not, real-time and timed processing of the fault detection condition information on the upper computer of the central center of the power central office is achieved, the processing capacity of a dispatching system is reasonably distributed, cost is saved, and meanwhile reliability of power dispatching is guaranteed.
Example 2
In this embodiment, after the central upper computer of the power office identifies the marked fault condition information and gives an alarm to the staff, the central upper computer of the power office filters and clears the stored fault condition information, the time when the central upper computer of the power office clears and filters the stored fault condition information is used as a timing trigger time, the timing trigger process is implemented based on a dynamic timer to perform task formulation, specifically, referring to fig. 2, after the central upper computer of the power office identifies the marked fault condition information and gives an alarm to the staff, the central upper computer of the power office filters and clears the stored fault condition information, the process duration is used as the low-level timing duration of the dynamic timer, the time when the central upper computer of the power office clears and filters the stored fault condition information is used as the timing trigger time, the low level of the dynamic timer is changed into the high level, the central upper computer of the power office formally stores and forwards the fault condition information corresponding to the secondary fault detection instruction to the staff, gives an alarm, and can reasonably allocate the response processing capability of the system.
Example 3
Referring to fig. 3, the present application further provides a remote scheduling terminal fault detection system based on a telemetry network, including:
the terminal detection front end is arranged in the remote site and used for detecting the fault condition of the remote site scheduling terminal in real time;
the terminal processing unit is connected with the terminal detection front end and used for receiving the fault condition of the remote station dispatching terminal detected by the terminal detection front end in real time, processing the fault condition and forwarding the processed fault detection condition information to the upper computer of the center of the power office end;
the central upper computer of the power local side is connected with the terminal processing unit, realizes fault remote measurement from a remote station to the central upper computer of the power local side together with the terminal detection front end and the terminal processing unit based on a power dispatching private network, identifies and analyzes received fault detection condition information, and gives an alarm to a worker;
the upper computer at the power station side is also internally provided with a historical fault counting module which is used for counting historical fault data of a dispatching terminal in a remote dispatching station and classifying faults in the historical fault data to obtain fault classification types;
based on fault classification types, dividing the fault detection response into two levels of scheduling terminal fault detection responses, respectively packaging the fault detection responses into a primary fault detection instruction and a secondary fault detection instruction for storage, sending the primary fault detection instruction and the secondary fault detection instruction to a terminal detection front end by a central upper computer of a power local side, and detecting the fault condition of a remote station scheduling terminal in real time by the terminal detection front end.
As shown in fig. 3, the terminal detection front end includes a plurality of detection interfaces and a detection signal conversion unit, each detection interface of the plurality of detection interfaces is connected to the detection signal conversion unit, and the detection signal conversion unit receives a fault signal detected by the detection interface and performs filtering processing on the fault signal, for example, some existing circuits with filtering and screening functions are specifically used.
The processing of the terminal processing unit to the remote site scheduling terminal fault condition detected by the terminal detection front end in real time comprises the following steps: and marking the fault detection condition information corresponding to the primary fault detection instruction, and not marking the fault detection condition information corresponding to the secondary fault detection instruction.
When the upper computer of the power station center identifies and analyzes the received fault detection condition information, the marked fault condition information is identified and stored, meanwhile, an alarm is given to a worker, the unmarked fault condition information is identified, and a secondary fault detection instruction is sent to the front terminal detection end of the remote station through the terminal processing unit again, so that secondary retesting of the fault condition under the secondary fault detection instruction is realized.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A remote scheduling terminal fault detection method based on a telemetry network is characterized by comprising the following steps:
s1, counting historical fault data of a scheduling terminal in a remote scheduling station, and classifying faults in the historical fault data to obtain fault classification types;
s2, dividing the fault classification type into two levels of scheduling terminal fault detection responses, respectively packaging the two levels of scheduling terminal fault detection responses into a primary fault detection instruction and a secondary fault detection instruction, and storing the primary fault detection instruction and the secondary fault detection instruction to an upper computer of a center of the power local side;
s3, a terminal detection front end receives a primary fault detection instruction and a secondary fault detection instruction sent by a power station center upper computer, and detects the fault condition of a remote station scheduling terminal in real time;
s4, the terminal detection front end feeds back the fault detection condition information to a terminal processing unit, the terminal processing unit marks the fault detection condition information corresponding to the primary fault detection instruction, and the fault detection condition information corresponding to the secondary fault detection instruction is not marked;
s5, the terminal processing unit forwards the marked fault condition information and the unmarked fault condition information to a central upper computer of the power office end, and the central upper computer of the power office end identifies and stores the marked fault condition information and simultaneously gives an alarm to workers;
s6, the upper computer of the power station center identifies unmarked fault condition information and issues a secondary fault detection instruction again;
s7, the terminal detection front end detects the fault condition of the scheduling terminal in the remote station under the secondary fault detection instruction in real time, and the fault condition information corresponding to the secondary fault detection instruction is fed back to the upper computer of the center of the power station side through the terminal processing unit;
s8, the upper computer of the power station center judges whether the information of the fault conditions detected by the scheduling terminal in the remote station under the two secondary fault detection instructions is consistent, if so, the upper computer formally stores the information of the fault conditions corresponding to the secondary fault detection instructions and forwards the information to a worker for warning after the timing trigger moment comes; otherwise, storing the fault condition information corresponding to the secondary fault detection instruction after the timing trigger moment comes, and turning to the background manual verification of the fault item.
2. The method for detecting the fault of the remote dispatching terminal based on the telemetry network as claimed in claim 1, wherein when the historical fault data of the dispatching terminal in the remote dispatching station is counted in step S1, a year span T is set, and the historical fault data of the dispatching terminal in the remote dispatching station under the year span T is counted forward with a current year as a starting point, wherein the historical fault data includes hardware fault data, external interface fault data and software fault data; the fault classification types comprise hardware faults, external interface faults and software faults, wherein the hardware faults comprise network cable fracture, unmatched connecting cables, loose terminal connectors and damaged hubs; software failures include dialing failures, network anomalies and server failures; the external interface faults comprise serial-parallel interface faults, USB port faults and power interface faults.
3. The method for detecting the fault of the remote dispatching terminal based on the telemetry network as claimed in claim 2, wherein in step S2, an urgency level threshold is set, a fault with a processing urgency greater than the urgency level threshold among a hardware fault, a software fault and an external interface fault is determined, and a command for performing such a fault to be detected is packaged as a primary fault detection command; and determining the faults of which the processing urgency degree is less than or equal to the urgency degree grade threshold in the hardware faults, the software faults and the external interface faults, and packaging the commands to be subjected to the faults to be detected into secondary fault detection commands.
4. The remote scheduling terminal fault detection method based on the telemetry network as claimed in claim 3, wherein the processing urgency of the fault to be detected corresponding to the primary fault detection instruction is higher than the processing urgency of the fault to be detected corresponding to the secondary fault detection instruction, in step S3, the terminal detection front end detects in real time whether the fault to be detected corresponding to the primary fault detection instruction and the fault to be detected corresponding to the secondary fault detection instruction exist in the remote site scheduling terminal, and records fault condition information.
5. The method for detecting the fault of the remote scheduling terminal based on the telemetry network as claimed in claim 2, wherein in step S8, the evaluation criteria that the information of the detected fault condition of the scheduling terminal in the remote site is consistent under two secondary fault detection instructions are as follows: 1) The fault classification types of the faults detected by the scheduling terminal in the remote station under the secondary fault detection instruction of two times are the same; 2) And the fault codes of the dispatching terminals in the remote sites for detecting the faults under the two secondary fault detection instructions are the same.
6. The method as claimed in claim 5, wherein the central host computer of the power station identifies the marked fault information, and after the alarm is given to the staff, the central host computer of the power station filters and clears the stored fault information, the time when the central host computer of the power station clears and filters the stored fault information is used as the timing trigger time, the timing trigger process is implemented by making a task based on a dynamic timer, the central host computer of the power station identifies the marked fault information, after the alarm is given to the staff, the central host computer of the power station filters and clears the stored fault information, the process record of the central host computer of the power station takes the process record, the process time is used as the low level timing time of the dynamic timer, the time when the central host computer of the power station clears and filters the stored fault information is used as the timing trigger time, the low level of the dynamic timer is changed into the high level, and the central host computer of the power station formally stores and forwards the fault information corresponding to the staff, and processes the alarm.
7. A remote dispatch terminal fault detection system based on a telemetry network, the system comprising:
the terminal detection front end is arranged in the remote site and used for detecting the fault condition of the remote site scheduling terminal in real time;
the terminal processing unit is connected with the terminal detection front end and used for receiving the fault condition of the remote station dispatching terminal detected by the terminal detection front end in real time, processing the fault condition and forwarding the processed fault detection condition information to the upper computer of the center of the power office end;
the central upper computer of the power local side is connected with the terminal processing unit, realizes the fault remote measurement from a remote station to the central upper computer of the power local side together with the terminal detection front end and the terminal processing unit based on a power dispatching private network, identifies and analyzes the received fault detection condition information, and gives an alarm to a worker;
the upper computer at the power station side is also internally provided with a historical fault counting module which is used for counting historical fault data of a dispatching terminal in a remote dispatching station and classifying faults in the historical fault data to obtain fault classification types;
based on fault classification types, dividing the fault detection response into two levels of scheduling terminal fault detection responses, respectively packaging the fault detection responses into a primary fault detection instruction and a secondary fault detection instruction for storage, sending the primary fault detection instruction and the secondary fault detection instruction to a terminal detection front end by a central upper computer of a power local side, and detecting the fault condition of a remote station scheduling terminal in real time by the terminal detection front end.
8. The remote dispatching terminal fault detection system based on the telemetry network as claimed in claim 7, wherein the terminal detection front end includes a plurality of detection interfaces and a detection signal conversion unit, each detection interface of the plurality of detection interfaces is connected with the detection signal conversion unit, and the detection signal conversion unit receives the fault signal detected by the detection interface and filters the fault signal.
9. The remote scheduling terminal fault detection system based on telemetry network of claim 8 wherein the processing of the remote site scheduling terminal fault condition detected by the terminal detection front end in real time by the terminal processing unit includes: and marking the fault detection condition information corresponding to the primary fault detection instruction, and not marking the fault detection condition information corresponding to the secondary fault detection instruction.
10. The remote dispatching terminal fault detection system based on the telemetry network as recited in claim 9, wherein the power office central host computer identifies and analyzes the received fault detection condition information, identifies and stores the marked fault condition information, simultaneously alarms to workers, identifies unmarked fault condition information, and sends the secondary fault detection instruction to the terminal detection front end of the remote site through the terminal processing unit again, thereby realizing secondary retesting of the fault condition under the secondary fault detection instruction.
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