CN213122110U - Single-machine multi-user intelligent electric energy meter capable of data acquisition and communication - Google Patents
Single-machine multi-user intelligent electric energy meter capable of data acquisition and communication Download PDFInfo
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- CN213122110U CN213122110U CN202021737803.2U CN202021737803U CN213122110U CN 213122110 U CN213122110 U CN 213122110U CN 202021737803 U CN202021737803 U CN 202021737803U CN 213122110 U CN213122110 U CN 213122110U
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Abstract
The utility model provides a single-machine multi-user intelligent electric energy meter capable of data acquisition and communication, which comprises a core board and a metering and load control board connected with the core board; the core board comprises a main controller, an uplink communication module, a liquid crystal display module and a keyboard, wherein the uplink communication module, the liquid crystal display module and the keyboard are connected with the main controller; the metering and load control panel comprises a plurality of metering and load control modules, one end of each metering and load control module is connected with the main controller through a data line, the other end of each metering and load control module is connected to a mains supply power bus in parallel, and mains supply outgoing lines of each electric energy metering and load control panel are respectively connected with load buses of corresponding users. The utility model discloses a nuclear core plate, with measurement and the cooperation of load control board, through the main control unit who disposes among the nuclear core plate, manage the operation of every function of every user and delete and subtract and upgrade, effective reduce cost.
Description
Technical Field
The utility model relates to an intelligent instrument field, concretely relates to novel intelligent electric energy meter of unit measurement, management, collection, transmission multi-user electric energy data.
Background
At present, electric energy meters on the market are all in a meter-to-household form, as shown in fig. 1, that is, one meter is used for one user, and electric energy meters in most regions are generally installed in a centralized manner, that is, several to dozens of electric energy meters are installed at one position.
The traditional electric energy meters such as a multi-tariff meter, a multifunctional meter, an AMR meter, an AMI meter, an intelligent internet of things and the like all comprise a plurality of corresponding functional modules, as shown in figure 2, the cost and the selling price of a single product are increased continuously due to the continuous increase of functions, and the economic burden of an electric power department and an individual user is increased. On the other hand, in order to control the cost, manufacturers cannot use devices with better performance in key components such as a main controller and liquid crystal of the product, and further increase and improvement of the functions of the electric energy meter are hindered.
The communication scheme of the electric energy meters such as the traditional AMR meter, the AMI meter, the intelligent meter and the intelligent Internet of things list is as follows: 1) the electric energy meter is directly provided with a public network communication module to directly communicate with the main station, and is further provided with a downlink communication module if the electric energy meter needs to communicate with water, gas, heat meters or a family display unit, as shown in figure 3. The scheme has good communication performance, but the communication cost is higher; 2) each electric energy meter is provided with a communication module such as a PLC, a small wireless meter and the like, a plurality of electric energy meters are provided with a collector, or dozens to hundreds of electric energy meters are provided with a concentrator to complete uplink data communication and remote control functions, if communication with a water, gas and heat meter or a household display unit is required, a downlink communication module is further provided or the uplink communication module is changed into an uplink communication module and a downlink communication module, as shown in figure 4. Although the communication cost is slightly low, the communication reliability is low due to the carrier wave, the small wireless communication modules and the like arranged in the electric energy meter, and finally the maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving intelligent ammeter cost too high, main control unit throughput is low on the low side, and the interface is unfriendly, and data acquisition and remote control success rate are low on the low side, and the user uses inconveniently, and installation work volume is big, steals electricity and measures the difficult monitoring of trouble and scheduling problem, the single-machine multi-user intelligent ammeter that can carry out data acquisition and communication that proposes.
The technical scheme of the utility model is that:
the utility model provides a single-machine multi-user intelligent electric energy meter capable of data acquisition and communication, which comprises a core board and a metering and load control board connected with the core board;
the core board comprises a main controller, an uplink communication module, a liquid crystal display module and a keyboard, wherein the uplink communication module, the liquid crystal display module and the keyboard are connected with the main controller;
the metering and load control panel comprises a plurality of metering and load control modules, one end of each metering and load control module is connected with the main controller through a data line, the other end of each metering and load control module is connected to a mains supply power bus in parallel, and mains supply outgoing lines of each electric energy metering and load control panel are respectively connected with load buses of corresponding users.
Furthermore, the number of the metering and load control modules is 3-32.
Further, the core board further includes a detection unit, and the detection unit includes: temperature sensor and humidity transducer, temperature sensor and humidity transducer install in the electric energy meter for detect ambient temperature and humidity, its detected signal output end links to each other with main control unit's the corresponding detected signal input.
Furthermore, the metering and load control panel also comprises a total metering module which is connected in series with the mains power line bus, is positioned at the front end of the plurality of metering and load control modules and is connected with the main controller through a data line.
Furthermore, the core board further comprises a downlink communication module, wherein one signal end of the downlink communication module is connected with the main controller, and the other signal end of the downlink communication module is communicated with one or more of an external water meter, a gas meter, a heat meter and/or an indoor display device.
Furthermore, the liquid crystal is lattice liquid crystal, and the keyboard is a multifunctional keyboard.
Further, the uplink communication module comprises one of GPRS, 3G, 4G, NB-IoT and Ethernet communication module.
Further, the downlink communication module comprises one or more of a PLC module, a Bluetooth module, an M-Bus module and/or an RS485 module.
The utility model has the advantages that:
the utility model adopts the matching of the core board and the metering and load control board, and manages the operation, deletion and upgrade of each function of each user by configuring the main controller in the core board; the functions, configuration and data which are common to each user only need to be stored once, and the main controller only needs to be executed once, so that the method can be applied to all the off-hook users without repeated processing; and processing the tasks by adopting a high-priority interrupt mode or a high-speed alternate processing mode with the same priority according to the application requirements for different functions and data of each user.
The utility model discloses a high performance main control unit, its speed is far above traditional one table one household electric energy meter, has not only contained the function of all biography one table one household AMR/AMI intelligent electric energy meter/intelligent thing networking electric energy meter, but also can easily increase more functions according to customer's demand, compares the main control unit of traditional electric energy meter, and throughput can exceed three quintuplets.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
FIG. 1 is a schematic diagram of a conventional electric energy meter installation;
FIG. 2 is a functional block diagram of a conventional electric energy meter;
FIG. 3 shows a communication architecture of a conventional power line carrier PLC or small wireless power meter
FIG. 4 is a communication structure of a conventional electric energy meter communicating with an uplink GPRS, a 3G, a 4G, NB-IoT, an Ethernet and the like
Fig. 5 is a design block diagram and an external ac wiring diagram of the present invention;
fig. 6 shows the communication architecture of the present invention, which uses GPRS, 3G, 4G, NB-IoT, ethernet and the like for uplink and PLC, bluetooth, M-Bus, RS485 and the like for downlink.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein.
A single-machine multi-user intelligent electric energy meter capable of data acquisition and communication is shown in figure 5, and comprises a core board and a metering and load control board connected with the core board;
the core board comprises a main controller, an uplink communication module, a liquid crystal display module and a keyboard, wherein the uplink communication module, the liquid crystal display module and the keyboard are connected with the main controller;
the metering and load control panel (model may be ML11) comprises multiple metering and load control modules, one end of each metering and load control module is connected with the main controller via data line, the other end is connected in parallel with the commercial power bus, the commercial power outlet of each electric energy metering and load control panel is respectively connected with the load bus of corresponding user
The utility model discloses will be like the master table in traditional concentrated installation formula table case in FIG. 1 (some areas may not install the master table for saving cost, or reduce the number of master table), a plurality of traditional electric energy meters (for example: many tariff tables, multi-functional table, AMR table, AMI table, smart meter and intelligent thing networking netlist etc.), functional block diagram is seen in detail in 2, a plurality of side air switch that are qualified for the next round of competitions, all functions that can be accomplished such as table case are integrated to a device, and improve the performance of parts such as treater, demonstration, keyboard, in order to reach the purpose of saving cost, increase the function, improve the ease for use, reduce the maintenance volume, simplify the installation, simplify and delete functional operation etc..
The utility model discloses mainly contain high performance main control unit, a plurality of metering modules, load control, go upward communication module, down communication module, multifunctional keyboard, show, intelligent ammeter such as power module and all functional module, the circuit part of collector (like fig. 5). All modules, components and circuits are connected with a main controller, and the main controller manages the operation, deletion and upgrade of each function of each user through a real-time operating system. The functions, configuration and data which are common to each user only need to be stored once, and the main controller only needs to be executed once, so that the method can be applied to all the off-hook users without repeated processing; and processing the tasks by adopting a high-priority interrupt mode or a high-speed alternate processing mode with the same priority according to the application requirements for different functions and data of each user.
The utility model discloses the essence difference with traditional electric energy meter lies in, traditional electric energy meter is single table single user, and the utility model discloses a single table is multi-user, and single product generally can support several, dozen even thirty user's power consumption measurement and information acquisition, all functions that smart meters such as remote control are relevant. If the system is provided with a downlink communication module or a module capable of uplink and downlink communication and corresponding software, the functions of information acquisition, remote control, indoor data display and the like of gas, water, heat and the like can be realized.
The utility model discloses a high performance main control unit, its speed is far above traditional one meter one household electric energy meter, has not only contained the function of all biography one meter one household AMR/AMI intelligent electric energy meter/intelligent thing networking electric energy meter, but also can easily increase more functions according to the customer's demand. The processing capacity of the high-performance main controller is not the sum of the processing capacities of the replaced traditional power meters, but is three or five times higher than that of the main controller of the traditional power meter, because: generally speaking, all traditional electric energy meters installed at the same position have the same functions, internal configuration parameters, real-time, power grid frequency and power grid voltage of the same phase, so that when the same functions, configuration and data are processed, the high-performance processor only needs to execute one-time operation without repeated processing; when the traditional one-meter one-household electric energy meter works, the processor MCU in the traditional one-meter one-household electric energy meter needs to repeatedly execute the same operation, and resource waste is caused. And (3) for different data, such as the electricity consumption, real-time power, real-time current, real-time power factor, recharging, payment, deduction of prepaid money, partial event record and the like of each user, adopting a high-speed alternate cyclic processing mode.
The utility model provides a dot matrix liquid crystal for replace the segment code liquid crystal in every traditional smart meter, present more friendly customer interface.
The utility model provides a multi-functional keyboard mainly used information input and show the selection of clauses and subclauses, for example: inputting user number, inputting display item short code, configuring simple function of part, inputting cipher, etc. Because the number of the keys is more, and the keys are matched with the dot matrix liquid crystal, the man-machine intelligent interaction with a user can be perfectly realized, and the usability of the intelligent watch is far higher than that of a one-user intelligent watch.
The utility model provides an go upward communication module (communication framework is seen in figure 6) all water, electricity, gas, the thermal data that will gather, incident record, alarm information etc. send the main website system. The uplink communication module is generally a 4G, 5G, 3G, GPRS, NB-IoT or wired network module and the like, and has good communication stability and high reliability. All communication modules in each traditional intelligent meter can be replaced by one module, and a large amount of cost can be saved.
The communication structure of the downlink communication module in the utility model is shown in figure 6; the method is mainly used for: 1) collecting data and states of a water meter, a gas meter and a heat meter; 2) interacting data with an indoor display device (CIU, UIU, IHD, etc.); 3) the data sent by the master station system is forwarded to the authorization equipment; 4) and communicating with authorized maintenance, configuration and reading equipment such as a palm computer, a tablet computer, a mobile phone and the like to complete the set function. Similarly, one module can replace all downlink communication modules in each traditional intelligent meter, and a large amount of cost can be saved.
Further, the utility model discloses the scheme such as well upper and lower communication can also adopt PLC and little wireless. Because the number of the communication modules is much less than that of the traditional scheme, the modules with better performance and slightly higher cost can be properly adopted, the performance is improved, and too high cost cannot be generated.
The utility model discloses still include power module, the main function is for turning into the required low pressure direct current of local work with the alternating current of electric power department supply, provides the power for modules such as main control unit MCU, measurement, load control, communication, button, demonstration, storage, detection. Similarly, one module can replace all power supply modules in each traditional intelligent meter, although the single cost is slightly more expensive than that of the power supply modules in the traditional intelligent meters, the price of at most 3 traditional power supply modules can not be exceeded, and a great deal of cost can be saved compared with replacing dozens of or even twenty single-user intelligent meters.
The metering and load control module in the utility model has the main functions basically the same as that of a meter-household intelligent meter, and mainly completes metering of electric energy, voltage, current, frequency, power, harmonic wave and the like; the cost is basically equivalent to the cost in the replaced multiple one-meter one-user intelligent meters; meanwhile, the functions of arrearage brake release, remote load control brake release and closing, overload brake release, electricity stealing brake release, abnormal brake release, recovery brake release and the like are completed. There are 2 scenarios available for user selection: 1) the cost of the built-in relay is basically the same as that of the load control parts of the intelligent meters of one meter and one family in the same quantity; 2) but adopt the air switch of external control type, with its built-in (operating handle exposes, convenient combined floodgate) arrive the utility model discloses in to adopt removable mode assembly, be equipped with solitary burden accuse housing and lead sealing, replace the traditional air switch of built-in relay and the user load side of smart meter, realize all functions of air switch and built-in relay, this scheme not only saves a large amount of costs, can't lead to the drawback of must changing the electric energy meter in the field maintenance replacement after having solved built-in relay trouble or damaging in addition.
The utility model discloses in still including detecting element, module or functional circuit such as temperature detection, storage, uncapping detection, humidity detection, super capacitor, battery, local communication, strong magnetic field detection, real-time clock, its main function is the same basically with a table one family's smart meter, and the advantage is through module and circuit in a plurality of a table one family's smart meter of one or a small number of module or functional circuit replacement to reach the purpose of saving the cost. Although the total capacity requirement of the memory chip is much larger than that of the intelligent table one by one, the configuration parameters, settlement data, load record, voltage, frequency, time and other data used in the time record are the same for each user, and repeated record is not needed, so that the total capacity of the memory chip is much smaller than that of the replaced intelligent table one by one, and the cost can be saved.
The utility model discloses support single-phase, double-phase, three-phase alternating current access mode simultaneously, and to double-phase, three-phase alternating current access mode, the product is inside can equally divide the user number of every looks, ensures load balance between each looks.
The utility model provides a total amount module is by customer's apolegamy (the model can be EM34), and the aim at realizes the measurement of all user's total power consumption data and states in same place with very little cost, then main control unit compares this total amount data in the module with the sum of each user's measurement data for the monitoring steals the electricity, measures the trouble etc..
Cost saving estimation:
as the following table, according to the utility model discloses the unit accomplishes measurement, management, the communication of 12 users and calculates, for 12 intelligent meters of a table family, the utility model discloses roughly can save 50% ~ 70% cost.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. A single-machine multi-user intelligent electric energy meter capable of data acquisition and communication is characterized in that: it includes core board and metering and load control board connected with it;
the core board comprises a main controller, an uplink communication module, a liquid crystal display module and a keyboard, wherein the uplink communication module, the liquid crystal display module and the keyboard are connected with the main controller;
the metering and load control panel comprises a plurality of metering and load control modules, one end of each metering and load control module is connected with the main controller through a data line, the other end of each metering and load control module is connected to a mains supply power bus in parallel, and mains supply outgoing lines of each electric energy metering and load control panel are respectively connected with load buses of corresponding users.
2. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, characterized in that: the number of the metering and load control modules is 3-32.
3. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, characterized in that: the core board further comprises a detection unit, the detection unit comprising: temperature sensor and humidity transducer, temperature sensor and humidity transducer install in the electric energy meter for detect ambient temperature and humidity, its detected signal output end links to each other with main control unit's the corresponding detected signal input.
4. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, characterized in that: the metering and load control panel also comprises a total metering module which is connected in series with the mains power line bus, is positioned at the front end of the plurality of metering and load control modules and is connected with the main controller through a data line.
5. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, characterized in that: the core board further comprises a downlink communication module, one signal end of the downlink communication module is connected with the main controller, and the other signal end of the downlink communication module is communicated with one or more of an external water meter, a gas meter, a heat meter and/or an indoor display device.
6. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, wherein: the liquid crystal is lattice liquid crystal, and the keyboard is multifunctional.
7. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 1, wherein: the uplink communication module comprises one of GPRS, 3G, 4G, NB-IoT and Ethernet communication modules.
8. The single-machine multi-user intelligent electric energy meter capable of data acquisition and communication according to claim 5, wherein: the downlink communication module comprises one or more of a PLC module, a Bluetooth module, an M-Bus module and/or an RS485 module.
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| CN202021737803.2U CN213122110U (en) | 2020-08-19 | 2020-08-19 | Single-machine multi-user intelligent electric energy meter capable of data acquisition and communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341215A (en) * | 2021-05-06 | 2021-09-03 | 南方电网数字电网研究院有限公司 | Double-core intelligent ammeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341215A (en) * | 2021-05-06 | 2021-09-03 | 南方电网数字电网研究院有限公司 | Double-core intelligent ammeter |
| CN113341215B (en) * | 2021-05-06 | 2022-11-25 | 南方电网数字电网研究院有限公司 | Double-core intelligent ammeter |
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