CN209785144U - Double-section prepayment electric energy meter based on NB-IOT communication - Google Patents
Double-section prepayment electric energy meter based on NB-IOT communication Download PDFInfo
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- CN209785144U CN209785144U CN201920613517.6U CN201920613517U CN209785144U CN 209785144 U CN209785144 U CN 209785144U CN 201920613517 U CN201920613517 U CN 201920613517U CN 209785144 U CN209785144 U CN 209785144U
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Abstract
The utility model discloses a double-section prepayment electric energy meter based on NB-IOT communication, which comprises an electric energy meter, an electric energy meter system and a cloud server system; the electric energy meter adopts an electric energy meter with an NB-IOT communication module, the electric energy meter system comprises a measurement/detection module, a data storage module and a display module, and the cloud server system comprises a cloud server and a system communication module; the electric energy meter, the electric energy meter system and the cloud server system are connected, so that electric power metering, data transmission, prepayment electric quantity recharging and load control of the electric energy meter in an NB-IOT communication mode are realized.
Description
Technical Field
The utility model relates to the field of electronic technology, concretely relates to electric energy meter especially relates to a two sections prepayment electric energy meter based on NB-IOT communication that has electric energy measurement, electric energy prepayment function and adopts NB-IOT communication.
Background
At present, the demands of each leasing industry such as industry, housing, market and the like on electricity charge and management are increasingly greater, the problem of default of electricity charge can be well solved by pre-charging the electricity charge, friction between two parties of leasing is reduced, and the house is favored by vast house owners. The development of prepaid electric energy meters is different day by day, but the most used smart card meters are lost, damaged and forgotten nowadays, and in addition, the price of an electricity selling system and card reading equipment is expensive, more importantly, cards are used as carriers, and the cards cannot keep pace with the current popular network payment trend, so that the popularization of the prepaid system is slow, and particularly, the prepaid system occupying the largest share of the market is overlooked in a secondary leasing market. With the development of internet technology, the payment and recharge of electric charges through the network at any time and any place become the expectations of all users, regardless of time and place. Not only can save the time cost of landlords and tenants, but also greatly reduces the labor cost.
For the safety and the study of data of the prepaid electric energy meter, the prepaid system takes numbers as virtual carriers based on IEC62055-41 standard, each registered electric energy meter has a unique secret key, the electricity selling system is responsible for encrypting the electric quantity data into 20 digits by using different secret keys, and the technology is safe and reliable and can hardly be cracked. And three modes of important data double backup, transmission encryption and software and hardware double encryption are adopted to ensure the safety of network recharging.
Narrowband cellular internet of things (NB-IOT) as a new technology developed in recent years has the characteristics of wide coverage, more connections, low cost, low power consumption, excellent architecture and the like. The method takes the mutual interconnection as the development positioning at the beginning, and the base station in the same cell supports the access of more NB-IOT equipment than 2G, thereby becoming a new favorite in the Internet of things field. And it is based on the characteristics of base station communication, and it is noted that it has with convenient use experience than wiFi, bluetooth. Therefore, an electric energy meter having both the electric energy metering and the electric energy prepayment functions can be designed by adopting NB-IOT communication.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two sections prepayment electric energy meters based on NB-IOT communication, this electric energy meter realizes that transmission and prepayment electric quantity of electric power measurement data recharge, operation such as load control under NB-IOT communication network.
In order to achieve the above purpose, the present invention adopts the following technical solution.
The utility model discloses a two sections prepayment electric energy meters based on NB-IOT communication, including electric energy meter, electric energy meter system and cloud server system, its characterized in that: the electric energy meter adopts an electric energy meter with an NB-IOT communication module, the electric energy meter system comprises a measurement/detection module, a data storage module and a display module, and the cloud server system comprises a cloud server and a system communication module; the electric energy meter, the electric energy meter system and the cloud server system are connected, so that electric power metering, data transmission, prepayment electric quantity recharging and load control of the electric energy meter in an NB-IOT communication mode are realized.
Preferably, the electric energy meter with the NB-IOT communication module comprises an SOC chip, a metering signal sampling module, a relay, an e-SIM card, a PCB antenna, an LCD display and a power supply module, wherein the NB-IOT communication module exchanges data with the NB-IOT base station.
in any of the above technical solutions, preferably, the SOC chip is an SOC chip having an MCU controller and a metering module.
In any of the above technical solutions, it is preferable that the relay is a 60A magnetic latching relay.
In any of the above technical solutions, preferably, the measurement/detection module includes a current sampling module, a voltage sampling module, and a temperature/residual current detection module, and measures the power consumption parameter in real time.
In any of the above technical solutions, preferably, the display module is connected to the SOC chip and the LCD display to display the power consumption parameters in real time.
In any of the above technical solutions, preferably, the electric energy meter with the NB-IOT communication module adopts a 20-bit Token protocol interface, and the remaining power recharging, clearing, relay opening and closing, and over-power threshold data are sent to the electric energy meter through the 20-bit Token protocol interface and the corresponding operation of the electric energy meter is realized through data decryption.
In any of the above technical solutions, preferably, the electric energy meter with the NB-IOT communication module is connected to the cloud server through a system communication module.
in any of the above technical solutions, preferably, the electric energy meter with the NB-IOT communication module is connected to the system communication module through a 20-bit Token protocol interface, and reports and transmits the measurement data to the cloud server for storage, or further data analysis by the user.
The utility model relates to an integrated metering device with electric energy metering and electric energy prepayment functions, and NB-IOT communication is adopted. Compared with the prior art, the above technical scheme of the utility model following beneficial effect has:
The utility model discloses can realize the measurement of active electric energy to adopt IEC62055-41 standard to carry out supplementing with money of residual capacity, when the residual capacity exhausts, the electric energy meter will cut off the power supply through the disconnection relay, and can set up the overpower threshold value, in time cut off load, avoid heavy load to cause the potential safety hazard to with the electric wire. The utility model discloses combine NB-IOT communication, the user can manage the electric energy meter anytime and anywhere to look over the power consumption data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a preferred embodiment of a NB-IOT communication-based double-section prepaid electric energy meter according to the present invention;
Fig. 2 is a schematic structural diagram of the embodiment shown in fig. 1 of a double-section prepaid electric energy meter based on NB-IOT communication according to the present invention;
Fig. 3 is a circuit connection diagram of the embodiment shown in fig. 1 of the dual-section prepaid electric energy meter based on NB-IOT communication according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to overcome the problem that the electric energy meter exists among the prior art, the embodiment of the utility model provides a two sections prepayment electric energy meter based on NB-IOT communication is proposed, this electric energy meter is an integrated meter that has electric energy measurement, electric energy prepayment function, and adopt NB-IOT communication, can realize the measurement of active electric energy, and adopt IEC62055-41 standard to carry out supplementing with money of surplus electric quantity, when surplus electric quantity exhausts, the electric energy meter will cut off the power through the disconnection relay, and can set up the overpower threshold value, in time cut off load, avoid the heavy load to lead to the fact the potential safety hazard to power consumption circuit. The utility model discloses combine NB-IOT communication, the user can manage the electric energy meter anytime and anywhere to look over the power consumption data.
The present embodiment is further described below with reference to fig. 1 to 3.
The double-section prepayment electric energy meter based on NB-IOT communication comprises an electric energy meter, an electric energy meter system and a cloud server system; the electric energy meter adopts an electric energy meter with an NB-IOT communication module, the electric energy meter system comprises a measurement/detection module, a data storage module and a display module, and the cloud server system comprises a cloud server and a system communication module; the electric energy meter, the electric energy meter system and the cloud server system are connected, and electric power metering, data transmission, prepayment electric quantity recharging and load control of the electric energy meter in an NB-IOT communication mode are achieved.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the electric energy meter with the NB-IOT communication module includes an SOC chip, a measurement signal sampling module, a relay, an e-SIM card, a PCB antenna, an LCD display, and a power supply module, and data exchange is performed between the NB-IOT communication module and the NB-IOT base station.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the SOC chip is an SOC chip having an MCU controller and a metering module.
In the double-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the relay is a 60A magnetic latching relay.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the measurement/detection module includes a current sampling module, a voltage sampling module, and a temperature/residual current detection module, and measures the power consumption parameter in real time.
In the double-section prepayment electric energy meter based on NB-IOT communication described in this embodiment, the display module is connected to the SOC chip and the LCD display, and displays the electricity consumption parameters in real time.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the electric energy meter with the NB-IOT communication module adopts a 20-bit Token protocol interface, and the data of the remaining electric quantity recharge, the zero clearing, the relay opening and closing, and the overpower threshold is sent to the electric energy meter through the 20-bit Token protocol interface and is decrypted by data to realize the corresponding operation of the electric energy meter.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the electric energy meter with the NB-IOT communication module is connected to the cloud server through the system communication module.
In the dual-section prepaid electric energy meter based on NB-IOT communication described in this embodiment, the electric energy meter with the NB-IOT communication module is connected to the system communication module through a 20-bit Token protocol interface, and reports and transmits the metering data to the cloud server for storage, or further data analysis by the user.
The embodiment can realize the purposes of transmission of electric power metering data, prepayment electric quantity recharging, load control and other operations under the NB-IOT communication network. The embodiment mainly comprises three parts, namely an electric energy meter, an electric energy meter system and a cloud server system, wherein the three parts are mutually assisted through modules, so that the metering and checking of electric energy, prepayment recharging, load control and other operations are realized.
The electric energy meter part adopts a standard electric energy metering SOC chip, and can provide high-precision metering parameters and electricity utilization information. Meanwhile, a 60A magnetic latching relay is built in, so that the rear-end load can be timely disconnected if necessary. The current sampling uses a shunt scheme designed integrally with the relay.
The electric energy meter part is provided with an NB-IOT communication module, data exchange between the electric energy meter part and an NB-IOT base station can be realized, and the electric energy meter part is provided with an e-SIM card and a PCB antenna, so that the volume and the anti-interference performance of the whole electric energy meter are further reduced. In addition, the electric energy meter of the embodiment is also designed with an LCD display, and relevant electricity utilization information and NB-IOT network parameters can be checked through buttons. The key operation parameters of the system are stored in the data storage module, and the system is nonvolatile when power is off.
The electric energy meter system is designed and developed by matching with an electric energy meter hardware module, and related functions of electric energy meter hardware are realized. The input signal of external measurement (voltage, electric current) realizes the calibration through the electric energy meter system to save the calibration data in the data storage module, real-time measurement simultaneously and show power consumption parameters such as active total electric quantity, active residual capacity, voltage, electric current, active power, power factor.
The electric energy meter of the embodiment adopts NB-IOT communication, and can realize parameter checking and setting by matching with an electric energy meter system, wherein the operations comprise residual electric quantity recharging, zero clearing, relay opening and closing, overpower threshold setting and the like. And the operation is issued to the electric energy meter in a 20-bit Token form, and the corresponding operation is realized through decryption, wherein the Token has extremely high safety and is extremely difficult to break. And simultaneously reporting the metering parameters to a system cloud server at regular time.
The cloud server system comprises a cloud server and a system communication module, and the electric energy meter can be added and managed through a cloud server webpage end (or an APP end). And the cloud server system receives the metering parameters reported by the electric energy meter and stores the metering parameters in the server for the user to analyze the electricity utilization data. When an instant task exists, the system has safe and efficient task allocation capability and can simultaneously process submission of a large number of user operations. And can set up the low early warning threshold value of residual power on the system, when the residual power is low, instruct through different colors, and can notify the form of the notice of the message (or APP end) to notify users to recharge in time.
of course, all the electricity consumption information including the electricity quantity, the voltage, the current, the active power, the power factor and the like can be provided on the cloud server system, and the historical data can be checked. The user can very convenient acquisition power consumption information in a period of time, the power consumption condition of analysis oneself. For example, the unreasonable electricity utilization habits can be found and corrected in advance according to the electricity consumption in each period.
The implementation of the embodiment provides more advanced and rich functions compared with the traditional prepayment electric energy meter, has an updated communication mode and safer prepayment flow, and also provides basic parameters of electric power metering. Based on the advanced communication mode, the device brings more convenient installation and use modes for users, and can be stably used in wider environment.
The above description is only intended to describe the preferred embodiments of the present invention, and not to limit the scope of the present invention; the above description is only a specific embodiment of the present invention, and is not intended to limit the scope of the present invention; without departing from the spirit of the present invention, any modification, equivalent replacement, or improvement made by the technical solution of the present invention by those of ordinary skill in the art should fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. The utility model provides a two sections prepayment electric energy meters based on NB-IOT communication, includes electric energy meter, electric energy meter system and cloud server system, its characterized in that: the electric energy meter adopts an electric energy meter with an NB-IOT communication module, the electric energy meter system comprises a measurement/detection module, a data storage module and a display module, and the cloud server system comprises a cloud server and a system communication module; the electric energy meter, the electric energy meter system and the cloud server system are connected, so that electric power metering, data transmission, prepayment electric quantity recharging and load control of the electric energy meter in an NB-IOT communication mode are realized.
2. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the electric energy meter with the NB-IOT communication module comprises an SOC chip, a metering signal sampling module, a relay, an e-SIM card, a PCB antenna, an LCD display and a power supply module, wherein the NB-IOT communication module exchanges data with the NB-IOT base station.
3. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 2, wherein: the SOC chip adopts an SOC chip with an MCU controller and a metering module.
4. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 2, wherein: the relay adopts a 60A magnetic latching relay.
5. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the measurement/detection module comprises a current sampling module, a voltage sampling module and a temperature/residual current detection module, and measures power utilization parameters in real time.
6. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the display module is connected with the SOC chip and the LCD display and displays the electricity utilization parameters in real time.
7. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the electric energy meter with the NB-IOT communication module adopts a 20-bit Token protocol interface, and the residual electric quantity recharging, zero clearing, relay opening and closing and overpower threshold data are sent to the electric energy meter through the 20-bit Token protocol interface and are decrypted to realize the corresponding operation of the electric energy meter.
8. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the electric energy meter with the NB-IOT communication module is connected with the cloud server through the system communication module.
9. The NB-IOT communication based dual-section prepaid electric energy meter in accordance with claim 1, wherein: the electric energy meter with the NB-IOT communication module is connected with the system communication module through a 20-bit Token protocol interface, and reports and transmits the metering data to the cloud server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920613517.6U CN209785144U (en) | 2019-04-30 | 2019-04-30 | Double-section prepayment electric energy meter based on NB-IOT communication |
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| CN201920613517.6U CN209785144U (en) | 2019-04-30 | 2019-04-30 | Double-section prepayment electric energy meter based on NB-IOT communication |
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| CN209785144U true CN209785144U (en) | 2019-12-13 |
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| CN201920613517.6U Active CN209785144U (en) | 2019-04-30 | 2019-04-30 | Double-section prepayment electric energy meter based on NB-IOT communication |
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