Distribution network automation terminal communication state detection system and method

Abstract

The invention discloses a distribution network automation terminal communication state detection system and method. According to the system, a distribution network automation terminal and a distribution network master station perform data interaction through a set communication mode; the distribution network master station is used for issuing remote control signals to the distribution network automation terminal and the communication state detection module; the distribution network automation terminal is used for receiving the remote control signal and feeding back a corresponding data message to the distribution network automation terminal and the communication state detection module; the communication state detection module is used for receiving a remote control signal of the distribution network master station and a data message of the distribution network automation terminal, and determining the communication state of the distribution network automation terminal according to a receiving result; the environment detection module is used for detecting environment data of the distribution network automation terminal and determining a processing mode of the distribution network automation terminal based on the communication state and the environment data. According to the system, corresponding processing operation is carried out on the distribution network automation terminal through the communication state and the environment data, so that the distribution network automation terminal can recover normal communication, and the communication efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution network communication, and in particular to a distribution network automation terminal communication status detection system and method. Background Art

[0002] The power system structure of the distribution network is complex and plays an important role in distributing electric energy in the power grid. Affected by the environment, various power equipment in the distribution network is prone to failure. The development of wireless communication technology provides an important monitoring method for the distribution network. Ensuring the stability of distribution network communication is one of the important goals of maintaining the stable operation of the power grid.

[0003] Since the distribution automation communication terminal is an important component of the communication between the automation switch and the distribution network master station, the distribution network automation communication terminal is often prone to problems such as reduced communication rate due to factors such as software crashes and operating status, resulting in abnormal communication between the distribution automation switch communication terminal and the distribution network master station. Operation and maintenance personnel are required to go to the site for manual processing, which is inefficient and wastes manpower costs, and greatly affects the working efficiency of the distribution automation switch. Summary of the invention

[0004] The present invention provides a distribution network automation terminal communication status detection system and method, which performs corresponding processing operations on the distribution network automation terminal through communication status and environmental data, so that the distribution network automation terminal can resume normal communication, reduces the impact on the operation of the distribution network automation switch terminal, and improves communication efficiency.

[0005] According to one aspect of the present invention, a distribution network automation terminal communication status detection system is provided, the distribution network automation terminal communication status detection system comprises a distribution network automation terminal, a distribution network master station, a communication status detection module and an environment detection module, the distribution network automation terminal and the distribution network master station perform data exchange by setting a communication mode, the communication status detection module is installed between the distribution network automation terminal and the distribution network master station, and the environment detection module is connected to the communication status detection module;

[0006] The distribution network master station is used to send remote control signals to the distribution network automation terminal and the communication status detection module;

[0007] The distribution network automation terminal is used to receive the remote control signal and feed back corresponding data messages to the distribution network master station and the communication status detection module;

[0008] The communication status detection module is used to receive the remote control signal sent by the distribution network master station and the data message fed back by the distribution network automation terminal, and determine the communication status of the distribution network automation terminal according to the reception results of the remote control signal and the data message;

[0009] The environment detection module is used to detect the environment data of the distribution network automation terminal, and determine the processing method of the distribution network automation terminal based on the communication state and the environment data.

[0010] According to another aspect of the present invention, a method for detecting a communication status of a distribution network automation terminal is provided, comprising:

[0011] Acquire communication information between the distribution network automation terminal and the distribution network master station and environmental data of the distribution network automation terminal;

[0012] Determining the communication status of the distribution network automation terminal according to the communication information;

[0013] A processing method for the distribution network automation terminal is determined based on the communication status and the environmental data.

[0014] According to the technical solution of the embodiment of the present invention, the communication status detection system of the distribution network automation terminal includes a distribution network automation terminal, a distribution network master station, a communication status detection module and an environment detection module. The distribution network automation terminal and the distribution network master station perform data exchange by setting a communication mode. The communication status detection module is installed between the distribution network automation terminal and the distribution network master station, and the environment detection module is connected to the communication status detection module; the distribution network master station is used to send a remote control signal to the distribution network automation terminal and the communication status detection module; the distribution network automation terminal is used to receive the remote control signal and feedback the corresponding data message to the distribution network master station and the communication status detection module; the communication status detection module is used to receive the remote control signal sent by the distribution network master station and the data message fed back by the distribution network automation terminal, and determine the communication status of the distribution network automation terminal according to the reception results of the remote control signal and the data message; the environment detection module is used to detect the environmental data of the distribution network automation terminal, and determine the processing method for the distribution network automation terminal based on the communication status and the environmental data. The system performs corresponding processing operations on the distribution network automation terminal through communication status and environmental data, so that the distribution network automation terminal can resume normal communication and improve communication efficiency.

[0015] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural diagram of a distribution network automation terminal communication status detection system provided according to Embodiment 1 of the present invention;

[0018] Figure 2 The present invention is a flowchart of a method for detecting the communication status of a distribution network automation terminal provided in accordance with the second embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention 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 interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] Embodiment 1

[0022] Figure 1 1 is a schematic diagram of the structure of a distribution network automation terminal communication status detection system provided according to the first embodiment of the present invention. Figure 1As shown, the distribution network automation terminal communication status detection system includes a distribution network automation terminal 110, a distribution network master station 120, a communication status detection module 130 and an environment detection module 140. The distribution network automation terminal 110 and the distribution network master station 120 perform data exchange by setting a communication method. The communication status detection module 130 is installed between the distribution network automation terminal 110 and the distribution network master station 120, and the environment detection module is connected to the communication status detection module.

[0023] The communication mode may include wired communication mode and wireless communication mode. In this embodiment, the wired communication mode may include optical fiber communication or Ethernet communication. The wireless communication mode may include wireless network card or other wireless private network communication.

[0024] It can be understood that the distribution network automation terminal communication status detection system in this embodiment can also be installed at other important distribution network line key nodes or transfer contact points in the distribution network to detect the communication status of its important distribution network line key nodes or transfer contact points, and then perform the same processing as this embodiment based on the communication status. In addition, the distribution network automation terminal communication status detection system in this embodiment also includes a power module for powering the distribution network automation terminal.

[0025] The distribution network master station 120 is used to send remote control signals to the distribution network automation terminal 110 and the communication status detection module 130 .

[0026] Among them, the remote control signal can be understood as a remote control command signal for the distribution network automation terminal. In this embodiment, the remote control signal can be a request to the distribution network automation switch communication terminal for the measurement and control device to close or disconnect a switch or knife switch to achieve remote control and operation of the distribution network automation terminal. In this embodiment, the distribution network master station can send a remote control signal to the distribution network automation terminal for remote control and operation; in this embodiment, the distribution network master station sends a remote control signal to the communication status detection module, so that the communication status detection module can determine whether its communication status is normal based on whether it can receive the remote control signal sent by the distribution network master station.

[0027] Furthermore, in this embodiment, when the distribution network master station remotely controls the automatic switch of the distribution network automation terminal, it usually first sends a remote control preset signal to the distribution network automation terminal. After the distribution network automation terminal receives the remote control preset signal, it sends a reverse calibration signal to the distribution network master station. Only after the distribution network master station receives the normal reverse calibration signal will it send a remote control signal to the distribution network automation terminal, thereby realizing remote control and operation of the distribution network automation terminal.

[0028] In this embodiment, the distribution network automation terminal has four remote functions, including remote communication, remote measurement, remote control and remote adjustment. The distribution network automation terminal can receive data sent actively, such as remote communication data or remote measurement data, and can also receive remote control instructions issued by the distribution network master station, such as remote control instructions or remote adjustment instructions. The remote control function in the distribution network automation system in this embodiment also needs to cooperate with other functions such as remote measurement, remote communication, and remote adjustment to jointly realize comprehensive monitoring and control of power grid equipment. Among them, telemetry is used to collect the operating parameters of power grid equipment, remote communication is used to reflect the status information of power grid equipment, and remote adjustment is used to adjust the operating parameters of power grid equipment.

[0029] The distribution network automation terminal 110 is used to receive the remote control signal and feed back corresponding data messages to the distribution network master station 120 and the communication status detection module 130 .

[0030] The data message may be an information carrier for communication between the distribution network automation terminal and the master station. The data message in this embodiment may include feedback data corresponding to the remote control signal sent by the distribution network master station. The data message in this embodiment may include various data sent from the distribution network automation terminal to the distribution network master station, such as telemetry data (such as voltage and current, etc.), telesignaling data (such as switch status and protection action, etc.), and confirmation and feedback of remote control commands.

[0031] The communication status detection module 130 is used to receive the remote control signal sent by the distribution network master station 110 and the data message fed back by the distribution network automation terminal 110, and determine the communication status of the distribution network automation terminal 110 according to the reception results of the remote control signal and the data message.

[0032] In this embodiment, the communication status detection module can be used to respectively receive the remote control signal sent by the distribution network master station and the data message corresponding to the remote control signal fed back by the distribution network automation terminal, and the communication status of the distribution network automation terminal can be determined according to whether the communication status detection module receives the remote control signal and the corresponding data message. In this embodiment, the communication status of the distribution network automation terminal may include a normal state, an abnormal state, and an interrupted state. In this embodiment, the communication status of the distribution network automation terminal can be determined according to the fact that the remote control signal uploaded by the distribution network automation terminal is not received within the set time. Similarly, the communication status of the distribution network master station can also be determined according to the fact that the data message fed back by the distribution network master station is not received within the set time. Among them, the set time can be set according to actual needs. In this embodiment, different communication states can be respectively corresponded by setting different time lengths.

[0033] In this embodiment, optionally, the communication status detection module is specifically configured to determine that the communication status of the distribution network automation terminal is an abnormal status if the remote control signal uploaded by the distribution network automation terminal is not received within a first set time period.

[0034] The first set duration of this embodiment can be pre-set and can be set according to actual needs. Exemplarily, the first set duration in this embodiment can be 1 minute. In this embodiment, if the communication status detection module does not receive the remote control signal uploaded by the distribution network automation terminal within 1 minute, it can be determined that the communication status of the distribution network automation terminal is abnormal. In this embodiment, after determining the abnormal communication status of the distribution network automation terminal, the working environment data of the current distribution network automation terminal can be obtained accordingly, and then different processing operations corresponding to different working environment data are performed on the distribution network automation terminal to restore normal communication of the distribution network automation terminal.

[0035] Through such a setting in this embodiment, the duration information of receiving the signal sent by the distribution network automation terminal can be flexibly set according to actual needs to determine the corresponding abnormal communication state, so as to clearly understand the current communication status of the distribution network automation terminal.

[0036] In this embodiment, optionally, the communication status detection module is specifically used to determine that the communication status of the distribution network automation terminal is an interrupted state if the remote control signal uploaded by the distribution network automation terminal is not received within a second set time period; wherein the second set time period is greater than the first set time period.

[0037] The second set duration of this embodiment can be pre-set and can be set according to actual needs. The second set duration in this embodiment is greater than the first set duration. It can be understood that if the first set duration is 1 minute, the corresponding second set duration must be greater than 1 minute. The second set duration can be set to 5 minutes. In this embodiment, if the communication status detection module does not receive the remote control signal uploaded by the distribution network automation terminal within 5 minutes, it can be determined that the communication status of the distribution network automation terminal is interrupted.

[0038] Through such a setting in this embodiment, the duration information of receiving the signal sent by the distribution network automation terminal can be flexibly set according to actual needs to determine the corresponding interrupted communication state, so as to clearly understand the current communication status of the distribution network automation terminal.

[0039] Furthermore, in this embodiment, the data messages sent by the distribution network automation terminal are also refreshed in real time. If the communication status detection module does not receive the sent telesignaling and telemetering messages for more than 1 minute, the communication status is judged to be abnormal. If the communication status detection module does not receive the sent telesignaling and telemetering messages for more than 5 minutes, the communication status is judged to be interrupted.

[0040] Specifically, in this embodiment, when the distribution network master station remotely controls the automatic switch of the distribution network automation terminal, it usually sends a remote control preset signal to the distribution network automation terminal first. After receiving the remote control preset signal, the distribution network automation terminal sends a reverse calibration signal to the distribution network master station. After receiving the reverse calibration normal signal, the distribution network master station sends a remote control signal to the distribution network automation terminal. After the distribution network automation terminal receives the remote control signal, it performs the switch opening and closing operation. After the switch is opened and closed, the position signal relay changes position. The distribution network automation switch sends the change position information to indicate that the remote control operation is successful. When the communication status detection module detects the remote control preset signal sent by the distribution network master station, it will immediately trigger the remote control online monitoring state. If the communication status detection module does not detect the reverse calibration normal signal within 40s, it will determine that the communication state of the distribution network automation terminal is abnormal. When the communication status detection module detects the remote control operation signal sent by the distribution network master station, if the switch position change information is not collected within 40 seconds, it will be judged that the switch failed to execute the command successfully due to reasons such as the switch body mechanism being stuck or the control circuit being broken. At this time, it can be considered that the remote control operation of the distribution network automation switch has failed.

[0041] The environment detection module 140 is used to detect the environment data of the distribution network automation terminal 110 and determine a processing method for the distribution network automation terminal 110 based on the communication state and the environment data.

[0042] Among them, the environmental data may include temperature and humidity data of the distribution network automation terminal or other environmental data. In this embodiment, temperature and humidity sensors can be installed on some units inside the distribution network automation terminal to obtain temperature data and humidity data of the distribution network automation terminal based on the temperature and humidity sensors. In this embodiment, the temperature and humidity data of the distribution network automation terminal are detected by the environmental detection module, and then different processing methods such as restarting or powering off the units in the distribution network automation terminal are performed according to the current communication status of the distribution network automation terminal combined with the actual temperature and humidity data.

[0043] In this embodiment, optionally, the distribution network automation terminal includes a communication encryption unit and a communication management unit; the communication encryption unit and the communication management unit are respectively installed with temperature and humidity sensors to obtain temperature and humidity data of the distribution network automation terminal.

[0044] In this embodiment, the communication encryption unit plays a role in ensuring data security in the distribution network automation terminal. Since the data in the distribution network involves the stability and security of the power supply, these data must be strictly protected. The communication encryption unit can encrypt the transmitted data by adopting advanced encryption algorithms and technologies, thereby preventing the data from being stolen or tampered with during the transmission process, which can not only ensure the confidentiality and integrity of the data, but also prevent potential malicious attacks and network intrusions. In this embodiment, the communication management unit is another key component in the distribution network automation terminal, which is mainly responsible for the communication management between the terminal and the distribution network master station or other terminal devices. The communication management unit has a variety of communication interfaces and protocol conversion functions, which can support a variety of communication modes and data formats, so that the distribution network automation terminal can be seamlessly connected and interacted with other devices and systems, thereby realizing real-time data transmission and sharing. In this embodiment, the communication encryption unit and the communication management unit work together in the distribution network automation terminal to ensure that the data in the distribution network can be safely and reliably transmitted and shared.

[0045] In this embodiment, the environmental monitoring system arranges multiple temperature and humidity sensors at the heat-prone points of the communication encryption unit and the communication management machine. Specifically, the temperature and humidity sensors can be installed at the air outlet or air inlet of the communication encryption unit and the communication management unit, respectively, to detect the temperature and humidity data of the distribution network automation terminal in real time. In this embodiment, through such a setting, the temperature and humidity data of the distribution network automation terminal can be obtained in real time, so as to perform corresponding processing operations when the operating temperature of the distribution network automation terminal is too high, so as to maintain normal communication of the distribution network automation terminal.

[0046] In this embodiment, optionally, the environment detection module is specifically used to detect the working temperature data of the communication encryption unit and the communication management unit in real time.

[0047] In this embodiment, the operating temperature data of the communication encryption unit and the communication management unit can be detected in real time by the environment detection module to determine the operating temperature data of the distribution network automation terminal. In this embodiment, other environmental data of the distribution network automation terminal, such as humidity data, can also be detected by the environment detection module, which can be set according to actual conditions.

[0048] Through such a setting in this embodiment, the real-time temperature data of the distribution network automation terminal can be detected by the environmental detection module, so as to determine the influencing factors of the temperature data on the communication of the distribution network automation terminal, so as to perform targeted processing actions.

[0049] In this embodiment, optionally, the environmental detection module includes a temperature adjustment unit; the temperature adjustment unit is used to adjust the operating temperature to a set temperature range by starting an air conditioner when the operating temperature of the communication encryption unit and / or the communication management unit exceeds a set threshold.

[0050] Among them, the set threshold value can be considered as a threshold value set for the working temperature data of the communication encryption unit and the communication management unit contained in the distribution network automation terminal, which can be pre-set. Exemplarily, the set threshold value can be set to 35 degrees. In this embodiment, the environmental detection module may include a temperature adjustment unit for adjusting the temperature of the communication encryption unit and / or the communication management unit in the distribution network automation terminal. Specifically, a DC air conditioner can be used to adjust the working temperature of the communication encryption unit and / or the communication management unit in the distribution network automation terminal. The set temperature range can be considered as the normal and safe working temperature range of the communication encryption unit and / or the communication management unit, which can be set according to actual needs. Exemplarily, the set temperature range in this embodiment can be a temperature range between 20 degrees and 25 degrees.

[0051] In this embodiment, the environmental detection module includes a temperature adjustment unit that can be used to start the DC air conditioner to process the communication encryption unit and / or the communication management unit when the operating temperature of the communication encryption unit and / or the communication management unit in the distribution network automation terminal exceeds the set 35 degrees, so as to adjust the operating temperature of the communication encryption unit and / or the communication management unit to the normal operating temperature range between 20 degrees and 25 degrees.

[0052] Through such a setting in this embodiment, the DC air-conditioning equipment in the temperature adjustment unit can timely adjust the operating temperature of the equipment in the distribution network automation terminal to a safe and normal range when the operating temperature is too high, thereby further ensuring the normal communication state of the distribution network automation terminal.

[0053] In this embodiment, optionally, the environmental detection module is specifically used to power off the communication encryption unit and / or the communication management unit and start the air conditioner to adjust the working temperature data if the working temperature data of the communication encryption unit and / or the communication management unit exceeds a set threshold and the communication status is an abnormal state, and restart the operation after a third set time.

[0054] In this embodiment, the environment detection module can be specifically used for if the working temperature data of the communication encryption unit and / or the communication management unit exceeds the set temperature threshold, such as exceeding the set 35 degrees, and the communication state of the distribution network sub-automation terminal detected by the communication state detection module is abnormal, then it can be determined that the distribution network automation terminal is due to the high ambient temperature. The communication encryption unit and / or the communication management unit are dead, and the communication encryption unit and / or the communication management unit can be powered off and the DC air conditioner included in the environment detection module is started to adjust the working temperature data of the communication encryption unit and / or the communication management unit, so that the working temperature data of the communication encryption unit and / or the communication management unit reaches a safe and normal working temperature data range, and then the communication encryption unit and / or the communication management unit can be restarted after delaying the third set time. Among them, the third set time can be pre-set. The third set time in this embodiment can be 1 minute, and can also be set according to actual needs. In this embodiment, when the environment detection module detects that the ambient temperature has returned to the normal operating temperature range, for example, when the ambient temperature returns to below 25 degrees and the communication state returns to normal, the DC air conditioner can be turned off.

[0055] It can be understood that in this embodiment, when the communication status is abnormal, if the communication encryption unit exceeds the set threshold, the communication encryption unit can be powered off and the air conditioner can be started to adjust the working temperature data, and the communication encryption unit can be powered on and restarted after the third set time; if the working temperature data of the communication management unit exceeds the set threshold, the communication management unit can be powered off and the air conditioner can be started to adjust the working temperature data, and the communication management unit can be powered on and restarted after the third set time; if the working temperature data of the communication encryption unit and the communication management unit both exceed the set threshold, the working temperature data of the communication encryption unit and the communication management unit can be powered off and the air conditioner can be started to adjust the working temperature data of the communication encryption unit and the communication management unit, and the communication encryption unit and the communication management unit can be powered on and restarted after the third set time.

[0056] In this embodiment, the operating temperature data can also be adjusted when the air conditioner is started, so that the operating temperature data of the communication encryption unit and / or the communication management unit reaches a safe and normal operating temperature data range, and then the communication encryption unit and / or the communication management unit are restarted. In this embodiment, the restart operation is set after the third set time period to prevent the DC air conditioner from malfunctioning, thereby avoiding additional risks.

[0057] Through such a setting in the present embodiment, the corresponding temperature threshold can be set for the working environment temperature of the distribution network automation terminal. When the communication status is abnormal and the temperature is too high, the distribution network automation terminal can be restarted after adjusting the temperature to restore the normal communication of the distribution network automation terminal. This not only reduces the workload of a large number of operation and maintenance personnel who need to go to the site for a simple restart, but also improves the online rate of the distribution network automation terminal, ensuring the reliability of the distribution automation switch operation.

[0058] In this embodiment, optionally, the environmental detection module is specifically used to power off and restart the communication encryption unit and / or the communication management unit if the operating temperature data of the communication encryption unit and / or the communication management unit does not exceed a set threshold and the communication status is an abnormal state or an interrupted state.

[0059] In this embodiment, the environmental detection module can be specifically used for if the operating temperature data of the communication encryption unit and / or the communication management unit does not exceed the set temperature threshold, for example, does not exceed the set 35 degrees, the operating temperature is below 35 degrees and the communication status of the distribution network sub-automation terminal is detected to be abnormal through the communication status detection module, then it can be determined that the distribution network automation terminal is due to the communication encryption unit and / or the communication management unit. The communication status is abnormal or the terminal may be frozen, so the communication encryption unit and / or the communication management unit can be directly powered off and then powered on and restarted, and then the current communication status recovery of the distribution network automation terminal is detected through the communication status detection module. If the communication status of the distribution network automation terminal is not restored, an alarm signal can be uploaded to the digital inspection platform to facilitate the operation and maintenance personnel to conduct timely maintenance and verify the problem.

[0060] Through such a setting in the present embodiment, when it is detected that the ambient temperature of the distribution network automation terminal is normal, but the communication state is still in an abnormal state or an interrupted state, the communication encryption unit and / or the communication management unit contained in the distribution network automation terminal can be directly powered off and powered on to restart, and an attempt can be made to restore the communication state of the distribution network automation terminal, thereby improving the communication efficiency of the distribution network automation terminal.

[0061] In this embodiment, optionally, the distribution network automation terminal communication status detection system also includes a digital inspection platform; the communication status detection module is also used to send an alarm signal to the digital inspection platform if the communication status has not returned to normal after the communication encryption unit and / or the communication management unit performs a restart operation.

[0062] Among them, the digital inspection platform can be considered as a platform that can present complex communication status data in an intuitive and easy-to-understand manner through a graphical interface and visualization tools, helping relevant personnel to better understand and analyze the operation of the power grid. It can also automatically generate inspection plans and dynamically adjust them according to actual conditions. The digital inspection platform in this embodiment can be directly connected to the communication status detection module. After the communication status detection module detects that after the communication encryption unit and / or the communication management unit are restarted, if the communication status of the distribution network automation terminal has not returned to the normal communication state, an alarm signal can be sent to the digital inspection platform to prompt the operation and maintenance personnel to perform maintenance or on-site verification operations.

[0063] In this embodiment, the communication status detection module can send the environmental detection module and communication status detection status to the digital inspection platform in real time; when abnormal conditions such as communication abnormalities, remote control failures, and continued harsh environment are detected, relevant alarm signals are sent to the digital inspection platform to realize digital online inspection.

[0064] Through such a setting in this embodiment, when an abnormal situation occurs, a corresponding alarm signal can be sent to the digital inspection platform to facilitate timely processing by operation and maintenance personnel, thereby improving the recovery efficiency of distribution network automation terminal communication and realizing digital online inspection.

[0065] According to the technical solution of the embodiment of the present invention, the communication status detection system of the distribution network automation terminal includes a distribution network automation terminal, a distribution network master station, a communication status detection module and an environment detection module. The distribution network automation terminal and the distribution network master station perform data exchange by setting a communication mode. The communication status detection module is installed between the distribution network automation terminal and the distribution network master station, and the environment detection module is connected to the communication status detection module; the distribution network master station is used to send a remote control signal to the distribution network automation terminal and the communication status detection module; the distribution network automation terminal is used to receive the remote control signal and feedback the corresponding data message to the distribution network master station and the communication status detection module; the communication status detection module is used to receive the remote control signal sent by the distribution network master station and the data message fed back by the distribution network automation terminal, and determine the communication status of the distribution network automation terminal according to the reception results of the remote control signal and the data message; the environment detection module is used to detect the environmental data of the distribution network automation terminal, and determine the processing method for the distribution network automation terminal based on the communication status and the environmental data. The system performs corresponding processing operations on the distribution network automation terminal through communication status and environmental data, so that the distribution network automation terminal can resume normal communication and improve communication efficiency.

[0066] Embodiment 2

[0067] Figure 2 This is a flow chart of a method for detecting the communication status of a distribution network automation terminal according to the second embodiment of the present invention. This embodiment is applicable to the case of detecting the communication status of a distribution network automation terminal. The method can be executed by a distribution network automation terminal communication status system. The distribution network automation terminal communication status system can be implemented in the form of hardware and / or software. The distribution network automation terminal communication status system can be configured in an electronic device with data processing capabilities. Figure 2 As shown, the method includes:

[0068] S210, acquiring communication information between the distribution network automation terminal and the distribution network master station and environmental data of the distribution network automation terminal.

[0069] The communication information can be understood as the data information for data exchange between the distribution network automation terminal and the distribution network master station. The environmental data can be considered as the temperature data or humidity data of the distribution network automation terminal, or other environmental data.

[0070] In this embodiment, the remote control signal sent by the distribution network master station and the corresponding data message data fed back by the distribution network automation terminal based on the remote control signal can be obtained, as well as the working temperature data or humidity data etc. obtained by the environmental detection module detecting the distribution network automation terminal.

[0071] S220: Determine the communication status of the distribution network automation terminal according to the communication information.

[0072] The communication status may include abnormal communication status, interrupted communication status, and normal communication status. In this embodiment, the communication status of the distribution network automation terminal may be determined based on whether the remote control signal sent by the distribution network master station and the remote control signal sent by the distribution network master station are received. Specifically, the corresponding communication status may be determined based on the set time range of the remote control signal sent by the distribution network master station and the remote control signal sent by the distribution network master station.

[0073] Specifically, in this embodiment, the data sent by the distribution network automation terminal to the distribution network master station is refreshed in real time. If the communication status detection module fails to receive the sent telesignal or telemetering message for more than the first set time, the communication status of the distribution network automation terminal is determined to be a communication abnormality state. If the sent telesignal or telemetering message is not received for more than the second set time, the communication status of the distribution network automation terminal is determined to be a communication interruption state. If the sent telesignal or telemetering message can be received normally, the communication status of the distribution network automation terminal can be determined to be a normal communication state. Among them, the second set time is greater than the first set time. The first set time can be 1 minute, the second set time can be 5 minutes, and it can also be set according to actual needs.

[0074] S230: Determine a processing method for the distribution network automation terminal based on the communication status and the environmental data.

[0075] The processing method may include powering off or restarting the distribution network automation terminal.

[0076] The distribution network automation terminal in this embodiment may include a communication encryption unit and a communication management machine, and multiple temperature and humidity sensors may be pre-arranged at the heat-prone locations of the communication encryption unit and the communication management machine. In this embodiment, when it is detected that the working environment of the communication encryption unit and / or the communication management machine is harsh (such as the working temperature>35 degrees), and the communication state of the distribution network automation terminal is abnormal, it can be considered that the current abnormal communication state is caused by the crash of the communication encryption unit due to the ambient temperature, and the DC air conditioner can be started and the communication encryption unit can be powered off, and then restarted after a delay of one minute. After the working temperature returns to below 25 degrees (the hysteresis is adjustable) and the communication state returns to normal, the DC air conditioner can be turned off.

[0077] In this embodiment, when the communication status of the distribution network automation terminal is detected to be abnormal or interrupted and the ambient temperature is normal (such as the working temperature <35 degrees), the communication encryption unit and / or the communication management machine can be directly powered off and then powered on to restart the heat-prone points, and the communication status recovery of the distribution network automation terminal can be detected. If the communication status of the distribution network automation terminal has not been restored, an alarm signal can be uploaded to the digital inspection platform for manual processing by the operation and maintenance personnel.

[0078] The technical solution of the embodiment of the present invention obtains the communication information between the distribution network automation terminal and the distribution network master station and the environmental data of the distribution network automation terminal; determines the communication status of the distribution network automation terminal according to the communication information; and determines the processing method for the distribution network automation terminal based on the communication status and the environmental data. This technical solution performs corresponding processing operations on the distribution network automation terminal through the communication status and environmental data, so that the distribution network automation terminal can restore normal communication, improves communication efficiency, reduces a large amount of work that requires operation and maintenance personnel to simply restart on site, and also improves the terminal online rate, ensuring the reliability of the distribution network automation terminal.

[0079] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0080] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution network automation terminal communication status detection system, characterized in that: The distribution network automation terminal communication status detection system includes a distribution network automation terminal, a distribution network master station, a communication status detection module and an environment detection module. The distribution network automation terminal and the distribution network master station perform data exchange by setting a communication mode. The communication status detection module is installed between the distribution network automation terminal and the distribution network master station, and the environment detection module is connected to the communication status detection module. The distribution network master station is used to send remote control signals to the distribution network automation terminal and the communication status detection module; The distribution network automation terminal is used to receive the remote control signal and feed back corresponding data messages to the distribution network master station and the communication status detection module; The communication status detection module is used to receive the remote control signal sent by the distribution network master station and the data message fed back by the distribution network automation terminal, and determine the communication status of the distribution network automation terminal according to the reception results of the remote control signal and the data message; The environment detection module is used to detect the environment data of the distribution network automation terminal, and determine the processing method of the distribution network automation terminal based on the communication state and the environment data.

2. The system according to claim 1, characterized in that The communication status detection module is specifically used to determine that the communication status of the distribution network automation terminal is an abnormal state if the remote control signal uploaded by the distribution network automation terminal is not received within a first set time period.

3. The system according to claim 2, characterized in that The communication status detection module is specifically used to determine that the communication status of the distribution network automation terminal is an interrupted state if the remote control signal uploaded by the distribution network automation terminal is not received within a second set time period; wherein the second set time period is greater than the first set time period.

4. The system according to claim 1, characterized in that The distribution network automation terminal includes a communication encryption unit and a communication management unit; the communication encryption unit and the communication management unit are respectively equipped with temperature and humidity sensors to obtain temperature and humidity data of the distribution network automation terminal.

5. The system according to claim 4, characterized in that The environment detection module is specifically used to detect the working temperature data of the communication encryption unit and the communication management unit in real time.

6. The system according to claim 5, characterized in that The environment detection module includes a temperature adjustment unit; The temperature adjustment unit is used to adjust the operating temperature to within a set temperature range by starting an air conditioner when the operating temperature of the communication encryption unit and / or the communication management unit exceeds a set threshold.

7. The system according to claim 5, characterized in that The environmental detection module is specifically used to cut off the power of the communication encryption unit and / or the communication management unit and start the air conditioner to adjust the working temperature data if the working temperature data of the communication encryption unit and / or the communication management unit exceeds a set threshold and the communication status is an abnormal state, and restart the operation after a third set time.

8. The system according to claim 5, characterized in that The environmental detection module is specifically used to cut off power to and restart the communication encryption unit and / or the communication management unit if the operating temperature data of the communication encryption unit and / or the communication management unit does not exceed a set threshold and the communication status is an abnormal state or an interrupted state.

9. The system according to claim 8, characterized in that The distribution network automation terminal communication status detection system also includes a digital inspection platform; The communication status detection module is also used to send an alarm signal to the digital inspection platform if the communication status has not returned to normal after the communication encryption unit and / or the communication management unit performs a restart operation.

10. A method for detecting the communication status of a distribution network automation terminal, characterized in that: include: Acquire communication information between the distribution network automation terminal and the distribution network master station and environmental data of the distribution network automation terminal; Determining the communication status of the distribution network automation terminal according to the communication information; A processing method for the distribution network automation terminal is determined based on the communication status and the environmental data.

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