CN111145502A - A low-voltage intelligent power distribution system based on the Internet of Things - Google Patents
A low-voltage intelligent power distribution system based on the Internet of Things Download PDFInfo
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- CN111145502A CN111145502A CN201911360857.3A CN201911360857A CN111145502A CN 111145502 A CN111145502 A CN 111145502A CN 201911360857 A CN201911360857 A CN 201911360857A CN 111145502 A CN111145502 A CN 111145502A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
本申请涉及一种基于物联网的低压智能配用电系统，包括数据采集装置、数据分析装置、监测预警装置、云端数据管理层和移动终端，所述数据分析装置和监测预警装置均与所述数据采集装置连接，所述数据分析装置和监测预警装置连接，所述云端数据管理层分别与所述数据采集装置、数据分析装置、监测预警装置和移动终端连接。本申请提高了低压配电网智能化水平和用电安全水平，降低了安全隐患，可有效保障生命财产安全；资料电子化，云端自动化实时监控和故障精准定位功能可大幅提升运维水平和抢修效率。
The present application relates to a low-voltage intelligent power distribution and consumption system based on the Internet of Things, including a data acquisition device, a data analysis device, a monitoring and early warning device, a cloud data management layer and a mobile terminal. The data acquisition device is connected, the data analysis device is connected with the monitoring and early warning device, and the cloud data management layer is respectively connected with the data acquisition device, the data analysis device, the monitoring and early warning device and the mobile terminal. This application improves the intelligence level of the low-voltage distribution network and the safety level of electricity consumption, reduces the potential safety hazards, and can effectively protect the safety of life and property; the electronic data, cloud-based automatic real-time monitoring and accurate fault location functions can greatly improve the operation and maintenance level and emergency repair. efficiency.
Description
Technical Field
The invention relates to the technical field of electricity utilization safety, in particular to a low-voltage intelligent power distribution and utilization system based on the Internet of things.
Background
At present, with the construction of smart cities and internet of things and the popularization of smart appliances and smart homes, the power consumption of users is continuously increased, potential safety hazards existing in the power consumption process are displayed, for example, fire disasters caused by line problems such as abnormal temperature, short circuit, overload, overvoltage, undervoltage and electric leakage of cables actually occur, due to the fact that the potential hazards cannot be found and eliminated in time, great loss is brought to the users, certain pressure is brought to fire fighting work, in order to find the power consumption potential safety hazards as soon as possible, fire protection monitoring equipment such as smoke sensing and electric leakage mutual inductors and other equipment are installed in a plurality of large places, the equipment can accurately carry out real-time data acquisition on smoke and electric leakage parameters occurring due to improper power consumption in the surrounding environment, whether the power consumption potential hazards appear or not is judged more accurately, when the smoke concentration in the surrounding environment exceeds a preset value, an alarm prompt is sent out, and the use of the equipment relieves a part of the electricity safety problems to a certain extent.
However, the problems of fire, electric leakage and the like caused by improper electricity utilization are strong in emergency and rapid in diffusion, and after abnormal data is detected by the fire monitoring equipment, the abnormal data can not be timely fed back to relevant monitoring personnel, even in a certain time period, because the working personnel are not at the post and do not timely receive an alarm to take measures, the safety problem is still difficult to avoid.
Disclosure of Invention
Therefore, the low-voltage intelligent power distribution and utilization system based on the internet of things is needed to solve the problems, and the intelligent level and the power utilization safety level of the low-voltage power distribution network are improved.
A low pressure intelligence power distribution and utilization system based on thing networking includes:
the data acquisition device is used for acquiring running environment information and line state information of a line in real time, wherein the line state information comprises leakage current, cable temperature and line current data;
the monitoring and early warning device is connected with the data acquisition device and is used for monitoring the operating environment information and the line state information of the line and sending out an early warning signal when the operating environment information or the line state information is abnormal;
the data analysis device is respectively connected with the data acquisition device and the monitoring and early warning device and is used for identifying an invasion target according to the operating environment information and the line state information of the line when the operating environment information or the line state information is abnormal, and effectively classifying and positioning invasion behaviors to obtain related abnormal information;
the cloud data management layer is respectively connected with the data analysis device, the monitoring and early warning device and the data acquisition device, and is used for storing the operation environment information and the line state information of the line, receiving the abnormal information and the early warning signal, and forming a database for a user to inquire according to the operation environment information, the line state information and the abnormal information of the line;
and the mobile terminal is connected with the cloud data management layer and used for inquiring the database and monitoring whether an early warning signal exists or not, and when the cloud data management layer receives the early warning signal, the mobile terminal sends out a prompt to enable a user to respond and process in time.
In one embodiment, the data acquisition device comprises:
the current transformer is used for acquiring current signals in a line in real time;
the leakage detector is used for monitoring the leakage condition of the line in real time;
the temperature sensor is used for monitoring the temperature of the cable or the distribution box body;
and the electric fire monitoring module is respectively electrically connected with the current transformer, the electric leakage detector and the temperature sensor and is used for integrating the data acquired by the current transformer, the electric leakage detector and the temperature sensor to obtain the state information of the circuit.
In one embodiment, the data acquisition device further comprises:
and the smoke detector is electrically connected with the electric fire monitoring module and is used for acquiring smoke concentration information in the surrounding environment.
In one embodiment, the data acquisition device further comprises:
and the combustible gas detector is electrically connected with the electrical fire monitoring module and is used for detecting whether combustible gas exists in the surrounding environment in real time.
In one embodiment, the monitoring and early warning device includes:
the monitoring module is used for receiving the operating environment information and the line state information of the line in the data acquisition device and monitoring the operating environment information and the line state information of the line in real time;
the abnormal response module is electrically connected with the monitoring module and used for sending out an early warning signal when the running environment information or the line state information of the line is abnormal;
and the loudspeaker is electrically connected with the monitoring module and used for giving out prompt tones when the running environment information or the line state information of the line is abnormal.
In one embodiment, the data analysis apparatus includes:
the data receiving module is used for receiving the running environment information and the line state information of the line in the data acquisition device and marking the running environment information and the line state information of each point;
the comparison module is electrically connected with the data receiving module and used for comparing the received acquisition information with a safety threshold value and judging whether an abnormal value is reached or not;
and the judging module is respectively electrically connected with the data receiving module and the comparing module and is used for judging the reason and the position of the sent abnormity, identifying an infringement target, and effectively classifying and positioning the infringement behavior to obtain related abnormal information.
In one embodiment, the method further comprises the following steps:
and the automatic cutting device is connected with the cloud data management layer and used for cutting off the line according to the abnormal information when the operating environment information or the line state information of the line is abnormal.
In one embodiment, the cloud data management layer is further connected with a control terminal of the device, a user sends a control instruction to the cloud data management layer through a mobile terminal, and the cloud data management layer analyzes the control instruction and then remotely controls the control terminal of the device to execute the instruction.
In one embodiment, the cloud data management layer is in wireless connection with the data acquisition device, the data analysis device, the monitoring and early warning device and the mobile terminal respectively.
In one embodiment, the cloud data management layer is wirelessly connected with the automatic cut-off device.
The low-voltage intelligent power distribution and utilization system based on the Internet of things improves the intelligent level and the power utilization safety level of a low-voltage power distribution network, reduces potential safety hazards and can effectively guarantee life and property safety; data electronization, automatic real-time monitoring in high in the clouds and the accurate locate function of trouble can promote fortune dimension level and efficiency of salvageing by a wide margin.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a low-voltage intelligent power distribution and utilization system based on the Internet of things in one embodiment;
FIG. 2 is a block diagram of a data acquisition device according to an embodiment;
FIG. 3 is a block diagram showing the construction of a data analysis apparatus according to another embodiment;
FIG. 4 is a block diagram of an embodiment of a monitoring and warning device;
FIG. 5 is a block diagram showing the structure of a data analysis device according to an embodiment;
fig. 6 is a block diagram of a low-voltage intelligent power distribution and utilization system based on the internet of things in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The utility model provides a low pressure intelligence power distribution and utilization system based on thing networking, as shown in fig. 1, including data acquisition device 10, data analysis device 20, monitoring early warning device 30, high in the clouds data management layer 40 and mobile terminal 50, data analysis device 20 and monitoring early warning device 30 all with data acquisition device 10 is connected, data analysis device 20 and monitoring early warning device 30 are connected, high in the clouds data management layer 40 respectively with data acquisition device 10, data analysis device 20, monitoring early warning device 30 and mobile terminal 50 are connected. Specifically, the cloud data management layer 40 is wirelessly connected to the data acquisition device 10, the data analysis device 20, the monitoring and early warning device 30, and the mobile terminal 50, respectively.
The data acquisition device 10 is used for acquiring running environment information and line state information of a line in real time, wherein the line state information comprises leakage current, cable temperature and line current data; the monitoring and early warning device 30 is used for monitoring the operation environment information and the line state information of the line, and sending out an early warning signal when the operation environment information or the line state information is abnormal; the data analysis device 20 is used for receiving the early warning signal, identifying an infringement target according to the operating environment information and the line state information of the line when the operating environment information or the line state information is abnormal, and effectively classifying and positioning infringement behaviors to obtain related abnormal information; the cloud data management layer 40 is configured to store the operating environment information and the line state information of the line, receive the abnormal information and the early warning signal, and form a database for a user to query according to the operating environment information, the line state information and the abnormal information of the line; the mobile terminal 50 is used for querying the database and monitoring whether an early warning signal exists, and when the cloud data management layer receives the early warning signal, the mobile terminal sends out a prompt to enable a user to respond and process in time.
The data acquisition device 10 simultaneously transmits the acquired running environment information and the acquired line state information of the line to the data analysis device 20, the monitoring and early warning device 30 and the cloud data management layer 40; the monitoring and early-warning device 30 monitors whether the running environment information and the line state information are abnormal in real time, and when the running environment information or the line state information are detected to be abnormal, the monitoring and early-warning device 30 sends out early-warning signals which are simultaneously sent to the data analysis device 20 and the cloud data management layer 40; after receiving the early warning signal, the data analysis device 20 identifies an infringement target according to the operating environment information and the line state information of the line, effectively classifies and regionally locates the infringement behavior to obtain related abnormal information, and sends the abnormal information to the cloud data management layer 40; the cloud data management layer 40 receives and stores the operating environment information and the line state information in the data acquisition device 10, forwards the early warning signal to the mobile terminal 50 when receiving the early warning signal, and forms a database for a user to query according to the operating environment information, the line state information and the abnormal information of the line.
In one embodiment, as shown in fig. 6, the cloud data management layer 40 is further connected to a control terminal 70 of a device, a user sends a control instruction to the cloud data management layer 40 through a mobile terminal 50, and the cloud data management layer 40 analyzes the control instruction and then remotely controls the control terminal 70 of the device to execute the instruction. When the operating environment information or the line state information is abnormal, the mobile terminal 50 may perform parameter setting and remote control operation on the control terminal 70.
The low-voltage intelligent power distribution and utilization system based on the Internet of things improves the intelligent level and the power utilization safety level of a low-voltage power distribution network, reduces potential safety hazards and can effectively guarantee life and property safety; data electronization, automatic real-time monitoring in high in the clouds and the accurate locate function of trouble can promote fortune dimension level and efficiency of salvageing by a wide margin.
In one embodiment, as shown in fig. 2, the data acquisition device 10 includes a current transformer 11, a leakage detector 12, a temperature sensor 13, and an electrical fire monitoring module 14, and the electrical fire monitoring module 14 is electrically connected to the current transformer 11, the leakage detector 12, and the temperature sensor 13, respectively.
The current transformer 11 is used for acquiring a current signal in a line in real time; the leakage detector 12 is used for monitoring the leakage condition of the line in real time; the temperature sensor 13 is used for monitoring the temperature of the cable or the distribution box body; and the electric fire monitoring module is used for integrating the data collected by the current transformer 11, the electric leakage detector 12 and the temperature sensor 13 to obtain the state information of the circuit.
In other embodiments, as shown in fig. 3, the data acquisition device 10 may further include a smoke detector 15 and a combustible gas detector 16, both the smoke detector 15 and the combustible gas detector 16 are electrically connected to the electrical fire monitoring module 14, wherein the smoke detector 14 is used for smoke concentration information in the surrounding environment; the combustible gas detector 16 is used for detecting whether combustible gas exists in the surrounding environment in real time. The electrical fire monitoring module 14 may integrate the data collected by the smoke detector 15 and the combustible gas detector 16 to obtain the operating environment information of the line.
In one embodiment, as shown in fig. 4, the monitoring and early warning device 30 includes a monitoring module 31, an abnormal response module 32 and a speaker 33, and the monitoring module 31 is electrically connected to the abnormal response module 32 and the speaker 33, respectively. The monitoring module 31 is configured to receive the operating environment information and the line state information of the line in the data acquisition device 10, and monitor the operating environment information and the line state information of the line in real time; when the operating environment information or the line state information of the line is abnormal, the abnormal response module 32 sends out an early warning signal, and the loudspeaker 33 sends out a prompt tone.
In one embodiment, as shown in fig. 5, the data analysis device 20 includes a data receiving module 21, a comparing module 22 and a determining module 23, the data receiving module 21 is electrically connected to the comparing module 22, and the determining module 23 is electrically connected to the data receiving module 21 and the comparing module 22, respectively. The data receiving module 21 is configured to receive operating environment information and line state information of a line in the data acquisition device, and mark the operating environment information and the line state information of each point; the comparison module 22 is configured to compare the received acquisition information with a safety threshold, and determine whether an abnormal value is reached; the judging module 23 is configured to judge a cause and a location of the generated abnormality, identify an invasion target, and perform effective classification and area location on an invasion behavior to obtain related abnormality information. Specifically, the safety threshold may be set according to actual conditions.
In one embodiment, as shown in fig. 6, the low-voltage intelligent power distribution and utilization system further includes an automatic disconnection device 60, where the automatic disconnection device 60 is connected to the cloud data management layer 40, and when the operating environment information or the line state information of the line is abnormal, the line is disconnected according to the abnormal information. Specifically, the cloud data management layer 40 is wirelessly connected to the automatic disconnection device 60.
The low-voltage intelligent power distribution system in the embodiment has an automatic circuit breaking function, and the power utilization safety is effectively enhanced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a low pressure intelligence power distribution and utilization system based on thing networking which characterized in that includes:
the data acquisition device is used for acquiring running environment information and line state information of a line in real time, wherein the line state information comprises leakage current, cable temperature and line current data;
the monitoring and early warning device is connected with the data acquisition device and is used for monitoring the operating environment information and the line state information of the line and sending out an early warning signal when the operating environment information or the line state information is abnormal;
the data analysis device is respectively connected with the data acquisition device and the monitoring and early warning device and is used for identifying an invasion target according to the operating environment information and the line state information of the line when the operating environment information or the line state information is abnormal, effectively classifying and regionally positioning invasion behaviors and acquiring related abnormal information;
the cloud data management layer is respectively connected with the data analysis device, the monitoring and early warning device and the data acquisition device, and is used for storing the operation environment information and the line state information of the line, receiving the abnormal information and the early warning signal, and forming a database for a user to inquire according to the operation environment information, the line state information and the abnormal information of the line;
and the mobile terminal is connected with the cloud data management layer and used for inquiring the database and monitoring whether an early warning signal exists or not, and when the cloud data management layer receives the early warning signal, the mobile terminal sends out a prompt to enable a user to respond and process in time.
2. The low-voltage intelligent power distribution and utilization system according to claim 1, wherein the data acquisition device comprises:
the current transformer is used for acquiring current signals in a line in real time;
the leakage detector is used for monitoring the leakage condition of the line in real time;
the temperature sensor is used for monitoring the temperature of the cable or the distribution box body;
and the electric fire monitoring module is respectively electrically connected with the current transformer, the electric leakage detector and the temperature sensor and is used for integrating the data acquired by the current transformer, the electric leakage detector and the temperature sensor and acquiring the state information of the circuit.
3. The low-voltage intelligent power distribution and utilization system according to claim 2, wherein the data acquisition device further comprises:
and the smoke detector is electrically connected with the electric fire monitoring module and is used for acquiring smoke concentration information in the surrounding environment.
4. The low-voltage intelligent power distribution and utilization system according to claim 2, wherein the data acquisition device further comprises:
and the combustible gas detector is electrically connected with the electrical fire monitoring module and is used for detecting whether combustible gas exists in the surrounding environment in real time.
5. The low-voltage intelligent power distribution and utilization system according to claim 1, wherein the monitoring and early warning device comprises:
the monitoring module is used for receiving the operating environment information and the line state information of the line in the data acquisition device and monitoring the operating environment information and the line state information of the line in real time;
the abnormal response module is electrically connected with the monitoring module and used for sending out an early warning signal when the running environment information or the line state information of the line is abnormal;
and the loudspeaker is electrically connected with the monitoring module and used for giving out prompt tones when the running environment information or the line state information of the line is abnormal.
6. The low-voltage intelligent power distribution and utilization system according to claim 1, wherein the data analysis device comprises:
the data receiving module is used for receiving the running environment information and the line state information of the line in the data acquisition device and marking the running environment information and the line state information of each point;
the comparison module is electrically connected with the data receiving module and used for comparing the received acquisition information with a safety threshold value and judging whether an abnormal value is reached or not;
and the judging module is respectively electrically connected with the data receiving module and the comparing module and is used for judging the reason and the position of the sent abnormity, identifying an infringement target, and effectively classifying and positioning the infringement behavior to obtain related abnormal information.
7. The low-voltage intelligent power distribution and utilization system according to claim 1, further comprising:
and the automatic cutting device is connected with the cloud data management layer and used for cutting off the line according to the abnormal information when the operating environment information or the line state information of the line is abnormal.
8. The system according to claim 1, wherein the cloud data management layer is further connected to a control terminal of the equipment, a user sends a control command to the cloud data management layer through a mobile terminal, and the cloud data management layer analyzes the control command and then remotely controls the control terminal of the equipment to execute the command.
9. The system according to claim 1, wherein the cloud data management layer is wirelessly connected to the data acquisition device, the data analysis device, the monitoring and early warning device and the mobile terminal.
10. The system according to claim 7, wherein the cloud data management layer is wirelessly connected to the automatic disconnect device.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098752A (en) * | 2020-09-11 | 2020-12-18 | 北京优奈特燃气工程技术有限公司 | A method and system for monitoring the operating condition of a low-voltage power distribution system |
| CN112098752B (en) * | 2020-09-11 | 2025-03-11 | 北京优奈特能源工程技术有限公司 | A method and system for monitoring the operation status of a low voltage power distribution system |
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