CN118713291A - A low voltage three-phase electricity monitoring and early warning system - Google Patents
A low voltage three-phase electricity monitoring and early warning system Download PDFInfo
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- CN118713291A CN118713291A CN202410729628.9A CN202410729628A CN118713291A CN 118713291 A CN118713291 A CN 118713291A CN 202410729628 A CN202410729628 A CN 202410729628A CN 118713291 A CN118713291 A CN 118713291A
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- H02J13/12—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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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
- G08B21/185—Electrical failure alarms
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- H02J13/10—
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- H02J13/1321—
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- H02J13/1331—
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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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- 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
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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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
- Y04S40/126—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 using wireless data transmission
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Abstract
本发明公开了一种低压三相用电监测与预报警系统，包括：三相多功能电力仪表，其配置在配电柜中用于采集电力数据；上位机，通过C#编制的控制程序，实现对配电柜电力数据的集中监测和预报警；三相多功能电力仪表包括RS485通讯接口，电力数据的传输由无线透明传输模块实现，无线透明传输模块包括RS485‑LORA发射模块和LORA‑RS485接收模块；RS485通讯接口将电力数据传输至RS485‑LORA发射模块，RS485‑LORA发射模块通过无线透明传输将电力数据发送至LORA‑RS485接收模块，LORA‑RS485接收模块用于接收电力数据并通过RS485‑USB转接口传输至上位机。本发明通过对采集到的数据进行整理、分析，及时发现临时用电系统中存在的问题，并优化系统布局，节能省流的功效，同时有效降低了设备故障率。
The present invention discloses a low-voltage three-phase power consumption monitoring and pre-alarm system, including: a three-phase multifunctional power meter, which is configured in a distribution cabinet for collecting power data; a host computer, through a control program compiled in C#, realizes centralized monitoring and pre-alarm of power data of the distribution cabinet; the three-phase multifunctional power meter includes an RS485 communication interface, and the transmission of power data is realized by a wireless transparent transmission module, and the wireless transparent transmission module includes an RS485-LORA transmitting module and a LORA-RS485 receiving module; the RS485 communication interface transmits power data to the RS485-LORA transmitting module, and the RS485-LORA transmitting module sends power data to the LORA-RS485 receiving module through wireless transparent transmission, and the LORA-RS485 receiving module is used to receive power data and transmit it to the host computer through an RS485-USB transfer interface. The present invention timely discovers problems in a temporary power consumption system by sorting and analyzing the collected data, and optimizes the system layout, energy saving and flow saving, and effectively reduces the equipment failure rate.
Description
Technical Field
The invention relates to the field of low-voltage three-phase electricity consumption monitoring, in particular to a low-voltage three-phase electricity consumption monitoring and pre-alarming system.
Background
In the current temporary electricity management, the incoming line of part of factories has aging condition, and the line diameter is smaller when the line is laid, or the load capacity of an upper-level distribution station is insufficient. These problems lead to high line voltage drop and poor zero line contact, thereby causing the phenomenon that the voltage of a certain phase of circuit in the line is suddenly increased or reduced. To cope with these problems, some basic power monitoring devices are generally used in the prior art to monitor parameters such as voltage and current of the line. However, these devices typically have only basic data acquisition functionality, lack the ability to analyze and process data in real time, and are difficult to effectively dynamically adjust the line load.
Under the condition that an aged or improperly designed external circuit cannot be replaced temporarily, how to monitor the condition of the circuit load in real time, collect, process and analyze the acquired data, and accordingly timely adjust the circuit load becomes an urgent need. The existing power monitoring equipment is high in failure rate and easy to cause safety accidents because of lacking intelligent analysis and dynamic adjustment functions and incapability of effectively changing the load of a circuit. In addition, the existing equipment generally relies on manual inspection, automatic and intelligent fault early warning and processing cannot be achieved, and maintenance difficulty and cost are further increased. Therefore, an intelligent low-voltage three-phase power consumption monitoring and pre-alarming system is urgently needed, line load conditions can be monitored in real time, fault rate is reduced through intelligent analysis and dynamic adjustment, and safety accidents are avoided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-voltage three-phase power consumption monitoring and pre-alarming system, which is used for timely finding out the problems in a temporary power consumption system by sorting and analyzing the acquired data, optimizing the system layout, saving energy and current and effectively reducing the equipment failure rate.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a low voltage three phase power monitoring and pre-alarm system comprising: the three-phase multifunctional power instrument is arranged in the power distribution cabinet and used for collecting power data; the upper computer realizes centralized monitoring and pre-alarming of the power data of the power distribution cabinet through a control program compiled by C#; the three-phase multifunctional power instrument comprises an RS485 communication interface, the transmission of power data is realized by a wireless transparent transmission module, and the wireless transparent transmission module comprises an RS485-LORA transmitting module and a LORA-RS485 receiving module; the RS485 communication interface transmits the power data to the RS485-LORA transmitting module, the RS485-LORA transmitting module transmits the power data to the LORA-RS485 receiving module through wireless transparent transmission, and the LORA-RS485 receiving module is used for receiving the power data and transmitting the power data to the upper computer through the RS485-USB switching interface.
Preferably, the power data includes three-phase voltage, current, neutral current, total active power, and power factor.
Preferably, the monitoring and pre-alarming of the upper computer on the electric power data comprises centralized monitoring, real-time alarming, historical alarming inquiry, historical trend inquiry and user management.
Preferably, the wireless transparent transmission module comprises a dynamic network topology management unit, which is used for dynamically adjusting the topology structure of the wireless transmission network according to the distribution and environmental change of the power distribution cabinet; the multi-channel and multi-band transmission unit is used for realizing multi-channel and multi-band parallel transmission through frequency allocation and channel switching technology; the self-adaptive transmission rate and power control unit is used for automatically adjusting the transmission rate according to the real-time channel condition and the data volume and automatically adjusting the transmitting power of the wireless module according to the distance and the signal intensity; the data redundancy and check unit is used for ensuring the integrity and accuracy of the data in the transmission process; and the automatic fault detection and recovery unit is used for detecting the fault of the wireless node and automatically selecting an alternative path for data transmission.
Preferably, the upper computer comprises an interface switching button for displaying a main parameter interface of the electric power parameter, switching between different power distribution cabinet interfaces, and a communication connection state display for displaying a communication connection state between the upper computer and each power distribution cabinet.
Preferably, the upper computer stores the monitored power data into a database, and displays peak voltage, current and power parameters of each power distribution cabinet in each period through a parameter graph on a historical trend interface.
Preferably, the upper computer is provided with a system log interface, comprising a system log, an operation log and a system alarm record, wherein the system log is used for checking the communication condition between the upper computer and each power distribution cabinet, so that the system maintenance is facilitated; the operation log is used for inquiring the operation record of the user; the system alarm record is used for recording the power parameter alarm abnormal conditions of each power distribution cabinet.
Preferably, the upper computer is provided with a history alarm interface, can trace an alarm log at any time period, and accordingly analyze the cause of the recent power system fault and discover hidden danger positions in time.
Preferably, the upper computer is provided with a user management interface, so that a user can add, delete and search records and set privacy authorities to meet the requirements of each management level.
Preferably, each power distribution cabinet is provided with an alarm lamp connected with the wireless transparent transmission module, and when the power distribution cabinet fails, the alarm lamp lights up a green light to indicate that the failure is detected; when fault confirmation information returned by the upper computer is received, the alarm lamp is changed into a red lamp to indicate that the upper computer has confirmed the fault; the inspection electrician judges whether to be consistent with faults found by the upper computer by comparing the state of the alarm lamp with the monitoring information of the upper computer, and ensures that the faults of the power distribution cabinet are found and processed in time.
The invention has the following beneficial effects:
(1) The system adopts a wireless transparent transmission module, and realizes wireless transmission of data through an RS485-LORA transmitting module and a LORA-RS485 receiving module. The data is transmitted in the data transmission process, is stable and reliable, and avoids the problems of difficult wiring and complex maintenance of the traditional wired connection. The wireless transmission mode not only improves the efficiency of data transmission, but also obviously reduces the maintenance cost of the system, and is convenient for the daily maintenance and management of the system.
(2) The system can comprehensively monitor various electric power parameters of the temporary electricity utilization system, including three-phase voltage and current, zero line current, total active power, power factors and the like. Through the upper computer program compiled by the C#, the system can collect, process and store the data in real time. The user management interface has the functions of historical trend analysis, real-time alarm, historical alarm inquiry and the like, and a user can comprehensively evaluate the working condition of the power utilization system through the functions, discover and process potential problems in time, optimize circuit arrangement and improve the overall operation efficiency of the system.
(3) The system is simple and efficient in design, and each power distribution cabinet only needs to be provided with a three-phase power instrument and a wireless transceiver module, so that comprehensive data monitoring and early warning functions are realized. The design greatly reduces the overall cost of the system and improves the working efficiency of the daily inspection of electricians. In addition, through installing the alarm lamp in the switch board, electrician can judge the fault condition directly perceivedly when patrolling and examining, combines host computer monitoring information, further improves fault detection's accuracy and the timeliness of handling.
In conclusion, the low-voltage three-phase power consumption monitoring and pre-alarming system has the advantages of remarkably improving the operation efficiency and reliability of the system, reducing the maintenance cost and having wide application prospect through wireless data transmission, comprehensive intelligent monitoring, high-efficiency inspection and double fault guarantee.
Drawings
FIG. 1 is a schematic diagram of a low voltage three-phase power consumption monitoring and pre-warning system module according to an embodiment of the present invention;
FIG. 2 is a centralized monitoring parameter interface of a host computer according to an embodiment of the present invention;
FIG. 3 is a historical trend interface of a host computer according to an embodiment of the present invention;
FIG. 4 is a main log window of an upper computer according to an embodiment of the present invention;
FIG. 5 is a historical alert interface of a host computer according to an embodiment of the present invention;
fig. 6 is a user management interface of a host computer according to an embodiment of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the present invention.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Referring to fig. 1, the embodiment discloses a low-voltage three-phase electricity consumption monitoring and pre-alarming system, which comprises: the three-phase multifunctional electric power instrument is arranged in the power distribution cabinet and used for collecting electric power data, the data collection precision of the three-phase multifunctional electric power instrument is high, the requirements of general data collection performance can be met, and the electric power data comprise three-phase voltage, current, zero line current, total active power, power factors and the like; the upper computer realizes centralized monitoring and pre-alarming of the power data of the power distribution cabinet through a control program compiled by C#; the three-phase multifunctional power instrument comprises an RS485 communication interface, the transmission of power data is realized by a wireless transparent transmission module, and the wireless transparent transmission module is a wireless communication device which can transmit data in a wireless mode under the condition of not changing the data content. The wireless transparent transmission module comprises an RS485-LORA transmitting module and a LORA-RS485 receiving module; the RS485 communication interface transmits the power data to the RS485-LORA transmitting module, the RS485-LORA transmitting module transmits the power data to the LORA-RS485 receiving module through wireless transparent transmission, and the LORA-RS485 receiving module is used for receiving the power data and transmitting the power data to the upper computer through the RS485-USB switching interface. The LORA technology is a long-distance wireless transmission technology, has the characteristics of low power consumption and long-distance transmission, and is suitable for wireless data transmission of a power distribution cabinet.
The upper computer realizes efficient electric power data processing and user-friendly interface design by utilizing the advantages of efficient development and maintenance, rich libraries and frames, cross-platform support, strong user interface, real-time performance, safety and the like of the C# through a control program compiled by the C# and realizes centralized monitoring and pre-alarming of electric power data. Specifically, the upper computer can display and monitor the power parameters of each power distribution cabinet in real time, and immediately send out an alarm signal when the detected power parameters exceed a preset range. In addition, the upper computer program also has the functions of data storage and analysis, can store the monitored data into a database, and displays the parameters such as peak voltage, current and power of each power distribution cabinet in each period through a parameter graph on a historical trend interface. Users can know the load peak time and the voltage drop trend of the power supply line by analyzing the parameter change trend in the graphs, so that the load at the lower end of the power distribution cabinet is timely adjusted, and the stable operation and the safety of the system are ensured.
The wireless transparent transmission module is adopted to transmit power data and parameters, and the module is connected with the C# upper computer through radio so as to realize the expansion of the system, thereby solving the problems of difficult wiring, easy line breakage and the like due to the dispersion and long distance of the power distribution cabinet and effectively reducing the maintenance cost of the system.
The wireless transparent transmission module comprises a dynamic network topology management unit and is used for dynamically adjusting the topology structure of the wireless transmission network according to the distribution and environmental change of the power distribution cabinet; the dynamic network topology management unit can automatically identify and adapt to the change of the position and the surrounding environment of the power distribution cabinet, so that the wireless transmission network is always in the optimal state. The multi-channel and multi-band transmission unit is used for realizing multi-channel and multi-band parallel transmission through frequency allocation and channel switching technology; the multi-channel and multi-band transmission units reduce interference and improve transmission efficiency and stability by switching between different frequencies and channels. The self-adaptive transmission rate and power control unit is used for automatically adjusting the transmission rate according to the real-time channel condition and the data volume and automatically adjusting the transmitting power of the wireless module according to the distance and the signal intensity; the self-adaptive transmission rate and power control unit can dynamically adjust the transmission rate and the transmission power according to the current signal strength and the data transmission requirement, thereby optimizing the transmission performance and saving energy. The data redundancy and check unit is used for ensuring the integrity and accuracy of the data in the transmission process; the data redundancy and checking unit ensures that no data loss or error occurs in the data transmission process by adding redundant data and checking, and can ensure the integrity and accuracy of the data even under the condition of poor transmission environment. The automatic fault detection and recovery unit is used for detecting the fault of the wireless node and automatically selecting an alternative path for data transmission; the automatic fault detection and recovery unit can monitor the state of the wireless transmission network in real time, and once a node is found to have a fault, the standby path is automatically selected immediately to continue transmitting data, so that the stability and reliability of the system are ensured.
Referring to fig. 2, the program interface of the upper computer programmed by the c# upper computer includes an interface switching button for displaying main parameter interfaces of power parameters, for switching between different power distribution cabinet interfaces, and a communication connection status display for displaying communication connection status between the upper computer and each power distribution cabinet, and has functions of centralized monitoring, real-time alarm, history alarm query, history trend query, user management, and the like. The wireless transparent transmission module transmits power parameters such as voltage, current and the like to the upper computer program, and displays the power parameters on the centralized monitoring interface, and the interface is also a main interface of the program, so that the power data of the power distribution cabinet can be monitored in real time, and a user can conveniently acquire the power parameters of the power distribution cabinet at any time, discover abnormality in time and process the abnormality.
Referring to fig. 3, the upper computer program can save the monitored data to the database and display the data on the historical trend interface, and the user can clearly obtain the parameters such as peak voltage, current and power of each power distribution cabinet and each period through the parameter graph of the interface. According to the change trend of the graph parameters, a user can analyze the parameters such as the load peak time, the voltage drop trend and the like of the power supply line, and timely adjust the load at the lower end of the power distribution cabinet.
Referring to fig. 4, the log interface of the upper computer has 3 log windows, which record system logs, operation logs and system alarm records respectively. The system log interface is mainly used for checking the communication condition between the system log interface and each power distribution cabinet, so that the system is convenient to maintain, the operation log can be used for inquiring user operation records, and the system alarm records the power parameter alarm abnormal condition of each power distribution cabinet. The system can be used for alarming through the inquiring system to know whether the current power distribution cabinets are abnormal or not, when the power parameters are recovered to the normal range, the alarming state can be displayed as the leaving state, the alarming information can be eliminated through manual confirmation, the power distribution cabinet power parameter monitoring is facilitated for users in real time, and the power distribution cabinet fault abnormality can be found out rapidly and effectively.
Referring to fig. 5, the upper computer has a history alarm interface, in which an alarm log of any period can be traced, so that a recent power system fault cause is analyzed, and hidden danger positions are found in time. The method is characterized in that important tracking can be carried out on a line with frequent faults, and the problems are solved preferentially, for example, when the long-term low voltage of the phase A at the lower end of a certain distribution box is detected, and the fault alarm is carried out, the load of the phase can be reduced by adjusting an electric equipment mode, or whether the phase has a line fault is checked; when the zero line current of a certain distribution box is detected to be larger, the load structure can be adjusted, and the three phases are adjusted to be in a balanced state.
Referring to fig. 6, the upper computer has a user management interface, in which a user can delete and search records, and can set privacy rights to meet the requirements of each management level. The administrator user can set the management authority of each login user, for example, an electrician can review windows such as a main interface, a historical trend, a historical alarm, a real-time alarm and the like, so that the working condition of the power distribution system can be known.
Referring to fig. 1, each power distribution cabinet is provided with an alarm lamp connected with a wireless transparent transmission module, and when the power distribution cabinet fails, the alarm lamp lights up to indicate that the fault is detected; when fault confirmation information returned by the upper computer is received, the alarm lamp is changed into a red lamp to indicate that the upper computer has confirmed the fault; when the power distribution cabinet fails, the alarm lamp lights up to indicate that the fault is detected, so that an inspection electrician can immediately know that the fault occurs. When the wireless transparent transmission module sends the fault information to the upper computer and receives fault confirmation information returned by the upper computer, the alarm lamp can be changed into a red lamp, which indicates that the upper computer has confirmed the existence of the fault. Through the design, in the daily inspection process, an inspector can judge whether the on-site fault condition is consistent with the fault found by the upper computer by comparing the state (green light or red light) of the alarm lamp with the monitoring information of the upper computer, so that the fault of the power distribution cabinet can be timely found and processed, and the accuracy of fault detection and the timeliness of processing are greatly improved by the double confirmation mechanism.
In summary, the invention provides a low-voltage three-phase power consumption monitoring and pre-warning system, which realizes real-time monitoring and pre-warning of power data of a power distribution cabinet by integrating a three-phase multifunctional power meter, a wireless transparent transmission module and an upper computer control program. The system performs data transmission through the wireless transparent transmission module, and comprises the functions of dynamic network topology management, multi-channel and multi-band transmission, self-adaptive transmission rate and power control, data redundancy and verification, automatic fault detection and recovery and the like, so that the stability and reliability of data transmission are ensured. Facing the increasing demands of increasingly sophisticated population, increasingly demanding electrician post skills, enterprises are increasingly difficult to find suitable employees. The low-voltage three-phase power consumption monitoring and pre-alarming system provided by the invention can effectively reduce the technical requirements on electrician posts, and helps electricians to quickly find problems in temporary power consumption systems by providing visual centralized monitoring of alarm lamps and an upper computer. The system can monitor and early warn the power data in real time, and can optimize the system layout through historical data analysis, so that the energy-saving and current-saving effects are realized. Through the design of wireless transparent transmission module and alarm lamp, the system can in time discover and handle the trouble of switch board, greatly reduced equipment failure rate, avoided influencing production because of equipment trouble to indirect economic loss has been reduced. In general, the system is a very practical and efficient system, and can meet the requirements of modern enterprises on electricity monitoring and management.
The system plays a remarkable role in the factory application process. In view of the fact that partial factory area voltage is unstable and unbalanced exists in the three-phase loads, the system can reasonably adjust the loads of the lower end lines of the power distribution cabinets through real-time monitoring of the power parameters of the power distribution cabinets, balance of the three-phase loads of the power distribution cabinets and balance of currents are maintained, and the conditions of line burning loss and electrical appliance damage caused by overlarge loads of certain lines are avoided. Overall, the system effectively improves the reliability and safety of the power utilization system, and ensures the continuity and stability of production.
The above-described figures are merely schematic illustrations of processes involved in a method according to an exemplary embodiment of the present application, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
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| CN207717885U (en) * | 2018-01-10 | 2018-08-10 | 上海东方明珠传输有限公司 | A kind of power monitoring system for autotomying cabinet for low pressure |
| CN217427767U (en) * | 2022-03-18 | 2022-09-13 | 国网河南省电力公司平顶山供电公司 | Intelligent positioning device for distribution network equipment |
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| CN118962559A (en) * | 2024-10-17 | 2024-11-15 | 四川激越物联网科技有限公司 | A method and system for intelligent detection of synchronization accuracy of fault indicators |
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