CN112578165A - Multifunctional intelligent meter box management terminal - Google Patents
Multifunctional intelligent meter box management terminal Download PDFInfo
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- CN112578165A CN112578165A CN202011611516.1A CN202011611516A CN112578165A CN 112578165 A CN112578165 A CN 112578165A CN 202011611516 A CN202011611516 A CN 202011611516A CN 112578165 A CN112578165 A CN 112578165A
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- meter box
- management terminal
- acquisition unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention provides a multifunctional intelligent meter box management terminal which comprises a meter box, a guide rail fixedly connected with the meter box and a module assembly in sliding connection with the guide rail. The module assembly is formed by combining a plurality of modules and comprises a power supply module, a main control module, a local communication module and a plurality of user side acquisition modules which are sequentially connected; the modules of the module component are detachably connected. The power module is used for supplying power to the meter box management terminal, and a backup power supply is arranged on the power module. The main control module comprises a main control chip, a voltage acquisition unit, a current acquisition unit, an environment temperature and humidity acquisition unit, a box door state acquisition unit, a Bluetooth and/or RS485 interface, and an NB-IoT and/or 4G communication unit. The multifunctional intelligent meter box management terminal adopts a module combination mode, has strong expansibility, can be compatible with the existing centralized meter reading system for user electricity consumption, and is convenient for upgrading and reconstructing the existing stock common meter box.
Description
Technical Field
The invention relates to the technical field of intelligent meter boxes, in particular to a multifunctional intelligent meter box management terminal.
Background
The intelligent electric meter is one of basic devices for data acquisition of an intelligent power grid, undertakes the tasks of original electric energy data acquisition, metering and transmission, and is the basis for realizing information integration, analysis optimization and information display. The intelligent electric meter has the functions of metering basic electricity consumption of the traditional electric meter, and also has intelligent functions of bidirectional multi-rate metering, user side control, bidirectional data communication of various data transmission modes, electricity larceny prevention and the like in order to adapt to the use of an intelligent power grid and new energy.
The power grid company promotes digital transformation, realizes cloud, pipe, edge and end interconnection, and can acquire and monitor power consumption information data, low-voltage distribution line environment and related corollary equipment states. The low-voltage distribution network ammeter box is configuration equipment of electric equipment of thousands of households, an ammeter base meter, a molded case circuit breaker, a miniature circuit breaker, a surge protector, a wiring terminal, a copper bar and a wire are configured in the box, and the low-voltage distribution network ammeter box is the most extensive low-voltage distribution terminal equipment concentration point and is the most important point for current distribution information acquisition, which is most easily ignored, weakest and most critical.
The intelligent meter box management terminal is used for assisting the intelligent electric meter to realize a management terminal system with various functions in order to be matched with the intelligent electric meter. At present, most of the existing intelligent meter box management terminals are highly customized, and the existing ordinary meter box storage cannot be upgraded and reformed. And the installation is comparatively complicated, needs to reserve specific space and installs the sensor, very easily causes the waste of space and material during function selection. The highly customized meter box management terminals have poor expandability and are not beneficial to the expansion of other subsequent functional requirements.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a multifunctional intelligent meter box management terminal which adopts a module combination mode, has strong expansibility, can be compatible with the existing centralized meter reading system for user electricity and is convenient for upgrading and reconstructing the existing ordinary meter box.
In order to achieve the purpose, the invention adopts the technical scheme that:
a multifunctional intelligent meter box management terminal comprises a meter box, a guide rail fixedly connected with the meter box and a module assembly in sliding connection with the guide rail;
the module assembly is formed by combining a plurality of modules and comprises a power supply module, a main control module, a local communication module and a plurality of user side acquisition modules which are sequentially connected; the modules of the module assembly are detachably connected;
the power supply module is used for supplying power to the whole meter box management terminal, and a backup power supply is arranged on the power supply module;
the main control module comprises a main control chip, a voltage acquisition unit, a current acquisition unit, an environment temperature and humidity acquisition unit, a box door state acquisition unit, a Bluetooth and/or RS485 interface and an NB-IoT and/or 4G communication unit;
the local communication module is in communication connection with the main control module and is used for data interaction with the intelligent router and/or the concentrator;
the user side acquisition module is in communication connection with the main control module and is used for acquiring the power utilization information of the user side.
The further improvement of the technical scheme is as follows:
the power supply module supplies power for three-phase four-wire or single-phase power.
The local communication module comprises a carrier communication unit, a micropower wireless communication unit or a carrier and micropower dual-channel communication unit.
The user side acquisition module further comprises a user side miniature circuit breaker state acquisition unit, and/or a user side incoming line temperature acquisition unit, and/or a leakage current acquisition unit, and/or a leakage voltage acquisition unit.
The collection points of the user side collection module are all at the wire outlet end of the user side electric energy meter base meter.
The multifunctional intelligent meter box management terminal further comprises a positioning module, and the positioning module is used for providing position information for the multifunctional intelligent meter box management terminal.
All modules of the module assembly are connected through a weak current bus, and meanwhile, the power supply module, the main control module and the local communication module are connected through a strong current bus.
And two adjacent side walls of each module and other modules of the module assembly are respectively provided with an incoming line terminal and an outgoing line terminal.
And the voltage acquisition unit and the current acquisition unit of the main control module are respectively connected with the wire inlet end of the meter box.
The main control module also comprises an electronic lock control unit and a real-time alarm unit; the electronic lock control unit is used for performing partition authorization management on the meter box; and the real-time alarm unit is used for sending an alarm signal to the remote master station when judging that the meter box is illegally opened after acquiring the state of the box door.
According to the technical scheme, the module assembly of the multifunctional intelligent meter box management terminal is connected through the guide rail, so that the multifunctional intelligent meter box management terminal is very convenient to disassemble and assemble. The module assembly is formed by combining a plurality of modules, and the expansibility is strong. The multifunctional meter box management terminal is convenient for upgrading and transforming the existing stock meter box, can realize the intellectualization of the meter box at low cost, can be compatible with the existing centralized meter reading system for user electricity consumption, and can completely replace an I/II type collector in the centralized meter reading system for user electricity consumption; the equipment types are reduced, and the operation cost of the power grid is reduced.
Drawings
FIG. 1 is a schematic diagram showing the connection between modules in example 2 of the present invention.
Fig. 2 is a schematic overall appearance diagram of a module assembly according to an embodiment of the invention.
Fig. 3 is a schematic circuit diagram of a three-phase four-wire power supply according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a management terminal according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 to 4 are schematic diagrams illustrating a structure and a circuit connection of a multifunctional smart meter box management terminal module assembly according to the present invention.
Example 1: the multifunctional intelligent meter box management terminal comprises a meter box, a guide rail fixedly connected with the meter box and a module assembly slidably connected with the guide rail.
The module assembly is formed by combining a plurality of modules and comprises a power supply module, a main control module, a local communication module and a plurality of user side acquisition modules which are sequentially connected; the modules of the module component are detachably connected.
The power module is three-phase four-wire or single-phase power supply and is used for supplying power to the meter box management terminal, and a backup power source is arranged on the power module. The power module is the essential module at smart meter case management terminal, provides sufficient power for whole management terminal, considers according to functional requirement and cost, selects suitable power supply mode. The backup power supply can enable the management terminal to analyze the fault when the meter box has power failure, accurately position a fault point and report related information, and convenience is brought to rapid maintenance of a power grid. After having a power failure, the backup power supply can continue to supply power to the management terminal, so that the management terminal can continue to monitor the meter box, such as monitoring the state of the door of the meter box, and authorizing the opening action of the meter box and the like.
The main control module comprises a main control chip, a voltage acquisition unit, a current acquisition unit, an environment temperature and humidity acquisition unit, a box door state acquisition unit, an electronic lock control unit, a real-time alarm unit, an interface unit and a communication unit, wherein the interface unit comprises a Bluetooth interface and/or an RS485 interface, and the communication unit comprises an NB-IoT communication unit and/or a 4G communication unit. The electronic lock control unit is used for performing partition authorization management on the meter box; and the real-time alarm unit is used for sending an alarm signal to the remote master station when judging that the meter box is illegally opened after acquiring the state of the box door. The master control module is also one of necessary modules of the management terminal, an industrial-grade low-power-consumption control chip is adopted as a master control chip, the communication and monitoring functions are integrated, and data of an electric energy meter base meter and a molded case circuit breaker in the meter box can be read through Bluetooth or RS485 interface communication; the NB-IoT or 4G communication unit can perform data interaction with a remote master station, and can perform remote or local authorization unpacking, partition unpacking management and abnormal condition alarm through a mobile phone and the master station.
The local communication module is in communication connection with the main control module, is a necessary module of the management terminal and comprises a carrier communication unit, a micropower wireless communication unit, a carrier and micropower dual-channel communication unit, and the local communication module is used for carrying out data interaction with an intelligent router or a concentrator.
The user side acquisition module is one of necessary modules of the management terminal and comprises a user side miniature circuit breaker state acquisition unit, a user side incoming line temperature acquisition unit, a leakage current acquisition unit and a leakage voltage acquisition unit. The user side acquisition module is in communication connection with the main control module and is used for acquiring data such as the state of the miniature circuit breaker at the user side, incoming line temperature, leakage current, voltage and the like at the user side and providing data support for power utilization safety and power failure fault analysis at the user side; and reasonably configuring according to the number of the electric energy meter base meters in the meter box.
All modules of the module assembly are connected through a weak current bus, and meanwhile, the power supply module, the main control module and the local communication module are connected through a strong current bus. And two adjacent side walls of each module and other modules of the module assembly are respectively provided with an incoming line terminal and an outgoing line terminal. And two side walls of the power supply module, the main control module and the local communication module are respectively provided with a strong current incoming line terminal, a strong current outgoing line terminal, a weak current incoming line terminal and a weak current outgoing line terminal. The user side acquisition module is only provided with a weak current incoming terminal and a weak current outgoing terminal. The modules are connected with each other through incoming terminals and outgoing terminals or strong current buses and weak current buses.
Fig. 3 is a schematic diagram of circuit connection when the three-phase four-wire power supply of the management terminal of the smart meter box of the embodiment is used. The management terminal monitors the line state of the incoming line side of the user meter box by sampling the voltage and the current of the incoming line side of the user meter box. The line state of the incoming line of the user side is monitored by sampling the voltage, the residual current and the temperature of a cable at the outgoing end of the electric energy meter base meter, namely the incoming line of the user side, so that the safety of power utilization of a user is ensured. The safety of the service environment of the management terminal is ensured by monitoring the ambient temperature and the state of the box door, the box door state monitoring is carried out by opening the box, whether abnormal box opening is carried out or not can be monitored, if abnormal box opening is carried out, alarm can be carried out, and the use safety of the meter box is improved. The electronic lock, namely the electronic lock control unit, can realize the partitioned authorized unpacking management of the meter box.
Example 2: the multifunctional intelligent meter box management terminal of the embodiment is basically consistent with the structure of the multifunctional intelligent meter box management terminal of the embodiment 1, and different from the multifunctional intelligent meter box management terminal, the multifunctional intelligent meter box management terminal further comprises a positioning module, and the positioning module adopts a GPS or a Beidou positioning system and is used for providing position information for the management terminal.
Each module of the module assembly includes upper and lower terminal connections, indicator lights, and the like.
The current transformer in front of the user electric energy meter base meter adopts an external open type current transformer, the meter box can be installed without power failure, wiring is simple and convenient, intelligent transformation can be carried out on the existing common meter box, and the intelligent meter box can be integrated into the intelligent meter box management terminal.
According to the invention, through research and application of a metering device and key technologies of a next-generation smart meter box, a Beidou positioning technology is combined, configuration of smart equipment is widely modified, a smart meter box management terminal meeting requirements of a smart grid is researched and developed, state information collection and monitoring of various equipment at the end of a low-voltage distribution network are realized, remote monitoring of a molded case circuit breaker, an electric energy meter base meter, a miniature circuit breaker, power utilization safety, line loss, temperature and humidity in a box, a three-phase power utilization load curve and operation states of various equipment is realized, visual display of various monitoring information in the meter box is realized, and intelligent management functions of low-voltage user end power utilization safety, distribution network power utilization fault research and judgment, fault positioning, information collection, man-machine interaction and the like.
The management terminal is installed in a guide rail type, and is provided with three-phase voltage/current sampling, in-box environment temperature and humidity measurement, meter box opening monitoring, user side miniature circuit breaker switch state monitoring, user side leakage monitoring, user side voltage loss monitoring and user side cable temperature measurement, a Bluetooth and RS485 interface is provided, the management terminal can be communicated with a meter box incoming line side molded case circuit breaker and an in-box base meter, various equipment operation states are monitored in real time, electricity consumption information is collected for analysis, information such as line loss analysis, three-phase imbalance and load curve is provided, relevant data are uploaded to an intelligent gateway or a concentrator through a local communication module until the data in a remote master station are visualized and intelligentized; related data can also be directly uploaded to the master station through NB-IoT or 4G; through the control function of the electronic lock, the watch box can be subjected to partition authorization management, and functions of illegal unpacking, real-time alarming and the like can be identified. The power meter box fault detection system is provided with a backup power supply, so that the terminal analyzes faults when the power meter box is powered off, accurately positions fault points and reports related information, and convenience is brought to rapid maintenance of a power grid. And after power failure, the meter box opening event can be continuously monitored, and actions such as box opening and the like are authorized.
The management terminal adopts module combination design, is spliced and installed, does not need to change parameters and programs when increasing or decreasing the function modules, is easy to expand, adapts to different requirements, and has strong compatibility. The system is compatible with the existing centralized meter reading system for the user electricity consumption, and can completely replace the functions of an I/II type collector in the centralized meter reading system for the user electricity consumption. Under the condition that the current centralized meter reading system for user electricity utilization is not influenced, the intelligent transformation of the meter box can be completed with low cost.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred 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 multi-functional smart meter case management terminal which characterized in that: the meter box comprises a meter box, a guide rail fixedly connected with the meter box and a module assembly in sliding connection with the guide rail;
the module assembly is formed by combining a plurality of modules and comprises a power supply module, a main control module, a local communication module and a plurality of user side acquisition modules which are sequentially connected; the modules of the module assembly are detachably connected;
the power supply module is used for supplying power to the whole meter box management terminal, and a backup power supply is arranged on the power supply module;
the main control module comprises a main control chip, a voltage acquisition unit, a current acquisition unit, an environment temperature and humidity acquisition unit, a box door state acquisition unit, a Bluetooth and/or RS485 interface and an NB-IoT and/or 4G communication unit;
the local communication module is in communication connection with the main control module and is used for data interaction with the intelligent router and/or the concentrator;
the user side acquisition module is in communication connection with the main control module and is used for acquiring the power utilization information of the user side.
2. The multifunctional smart meter box management terminal of claim 1, wherein: the power supply module supplies power for three-phase four-wire or single-phase power.
3. The multifunctional smart meter box management terminal of claim 1, wherein: the local communication module comprises a carrier communication unit, or a micropower wireless communication unit, or a carrier and micropower dual-channel communication unit.
4. The multifunctional smart meter box management terminal of claim 1, wherein: the user side acquisition module further comprises a user side miniature circuit breaker state acquisition unit, and/or a user side incoming line temperature acquisition unit, and/or a leakage current acquisition unit, and/or a leakage voltage acquisition unit.
5. The multifunctional smart meter box management terminal of claim 1, wherein: the collection points of the user side collection module are all at the wire outlet end of the user side electric energy meter base meter.
6. The multifunctional smart meter box management terminal of claim 1, wherein: the multifunctional intelligent meter box management terminal further comprises a positioning module, and the positioning module is used for providing position information for the multifunctional intelligent meter box management terminal.
7. The multifunctional smart meter box management terminal of claim 1, wherein: all modules of the module assembly are connected through a weak current bus, and meanwhile, the power supply module, the main control module and the local communication module are connected through a strong current bus.
8. The multi-functional smart meter box management terminal of claim 7, characterized in that: and two adjacent side walls of each module and other modules of the module assembly are respectively provided with an incoming line terminal and an outgoing line terminal.
9. The multifunctional smart meter box management terminal of claim 1, wherein: and the voltage acquisition unit and the current acquisition unit of the main control module are respectively connected with the inlet wire end of the meter box.
10. The multifunctional smart meter box management terminal of claim 1, wherein: the main control module also comprises an electronic lock control unit and a real-time alarm unit; the electronic lock control unit is used for performing partition authorization management on the meter box; and the real-time alarm unit is used for sending an alarm signal to the remote master station when judging that the meter box is illegally opened after acquiring the state of the box door.
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| CN202011611516.1A CN112578165A (en) | 2020-12-30 | 2020-12-30 | Multifunctional intelligent meter box management terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011611516.1A CN112578165A (en) | 2020-12-30 | 2020-12-30 | Multifunctional intelligent meter box management terminal |
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| CN202011611516.1A Pending CN112578165A (en) | 2020-12-30 | 2020-12-30 | Multifunctional intelligent meter box management terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131616A (en) * | 2021-04-25 | 2021-07-16 | 国网河南省电力公司开封供电公司 | Concentrated meter reading terminal based on lora technology |
| CN113804963A (en) * | 2021-08-31 | 2021-12-17 | 国网山东省电力公司烟台市福山区供电公司 | Multi-functional novel intelligent ammeter case |
| CN114256979A (en) * | 2021-12-16 | 2022-03-29 | 广东电网有限责任公司 | Multifunctional measurement and control terminal device |
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Application publication date: 20210330 |