CN214751469U - Energy consumption management system based on NB technology - Google Patents
Energy consumption management system based on NB technology Download PDFInfo
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- CN214751469U CN214751469U CN202121451698.0U CN202121451698U CN214751469U CN 214751469 U CN214751469 U CN 214751469U CN 202121451698 U CN202121451698 U CN 202121451698U CN 214751469 U CN214751469 U CN 214751469U
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Abstract
The utility model discloses an energy consumption management system based on NB technique relates to energy consumption management technical field, including the measurement sensor that corresponds various energy and be used for measuring various energy power consumptions, measurement sensor is connected with the signal input part electricity of loRa collector, and the signal output part of loRa collector realizes the communication of data through NB-IoT wireless communication module and cloud management center, cloud management center is connected with user's mobile terminal electricity, and cloud management center controls the operating condition of energy consumption equipment; the NB-IoT wireless communication module comprises a power supply conversion circuit, and the input end of the power supply conversion circuit is connected with the output end of the preceding stage power supply; the utility model discloses can make the user obtain real-time energy consumption information and carry out remote monitoring at any time through mobile terminal, realize reasonable energy consumption.
Description
Technical Field
The utility model relates to an energy consumption management technical field, concretely relates to energy consumption management system based on NB technique.
Background
Energy has become an indispensable essential element of human society. With the increasing shortage of energy and the deterioration of environment, the acquisition of economical, convenient and environment-friendly energy becomes an urgent problem related to human survival and sustainable development. In public areas such as homes, offices, schools, and the like, the consumption of energy such as water, electricity, gas, and oil is large, and therefore, energy consumption management is imperative. At present, the existing energy consumption management system usually adopts field management to manage energy consumption data, and cannot realize remote management.
SUMMERY OF THE UTILITY MODEL
In order to solve the prior art problem, the utility model provides an energy consumption management system based on NB technique, including corresponding various energy and being used for measuring the measurement sensor of how much energy consumption of various energy, the measurement sensor is connected with the signal input part electricity of loRa collector, the signal output part of loRa collector realizes the communication of data through NB-IoT wireless communication module and cloud management center, the cloud management center is connected with user's mobile terminal electricity, the operating condition of energy consumption equipment is controlled to the cloud management center;
the NB-IoT wireless communication module comprises a power supply conversion circuit, wherein the input end of the power supply conversion circuit is connected with the output end of a preceding stage power supply, the output end of the power supply conversion circuit is connected to the input end of an energy limiting circuit, and the output end of the energy limiting circuit is connected to the power supply end of the NB-IoT circuit; the UART interface and the WKUP pin of the NB-IoT chip in the NB-IoT circuit are connected with the GPIO of the MCU chip in the MCU circuit; and a capacitor energy storage circuit is placed at the power supply end of the NB-IoT circuit.
Further, the output voltage of the power conversion circuit is equal to the NB-IoT circuit highest working voltage.
The further scheme is that the energy limiting circuit limits the output voltage of the power conversion circuit not to exceed 1.3-1.32 times of the design voltage.
The further scheme is that the capacitor energy storage circuit is formed by connecting two 220uF capacitors in parallel.
The further scheme is, the loRa collector is including gathering the plate body, gathering the singlechip and gathering the LoRa radio frequency component, it sets up to gather the singlechip the middle part of plate body, it sets up to gather the LoRa radio frequency component the periphery of gathering the plate body, it is in through embedding to gather the LoRa radio frequency component link line body in the plate body with gather the monolithic and electromechanical connection.
The further scheme is that two relays are arranged on the acquisition board body and are electrically connected with the acquisition single chip microcomputer through the connecting line body; the relay is connected with an output connector, and the output connector is arranged on the periphery of the acquisition board body.
The further scheme is that two switch signal connectors are arranged on the acquisition board body, and the switch signal connectors are electrically connected with the acquisition single chip microcomputer through the connecting line body; two of the switch signal connectors are arranged in parallel.
The utility model has the advantages that:
the utility model can enable the user to obtain real-time energy consumption information at any time through the mobile terminal and carry out remote monitoring, thus realizing reasonable energy consumption;
the utility model adopts the NB-IoT wireless communication module to improve the endurance time of the communication equipment without changing the battery for the communication equipment;
the utility model discloses through adopting energy limiting circuit to limit NB-IoT circuit operating energy in NB-IoT wireless communication module, make NB-IoT circuit also accord with the intrinsic safety circuit requirement; a capacitive energy storage circuit meeting intrinsic safety requirements is added at a power supply pin end of an NB-IoT chip in the NB-IoT circuit to provide instantaneous energy during wireless transmission for the NB-IoT circuit and ensure the NB-IoT circuit to work normally; the MCU circuit limits the maximum working current of the NB-IoT circuit by monitoring the signal quality of the NB-IoT network, and solves the problems that the reset and dead halt phenomena of the circuit occur due to the fact that the energy limiting circuit generates large voltage drop caused by large working current of the NB-IoT circuit in the environment of weak signal quality of the NB-IoT network;
the utility model adopts a Lora collector in which the middle part of the collecting plate body is provided with a collecting single chip microcomputer, which is convenient for collecting the single chip microcomputer to process data in a centralized way; the acquisition board body is provided with acquisition Lora radio frequency elements at the periphery, so that the acquisition of external information by the acquisition Lora radio frequency elements is facilitated; the acquisition plate body is embedded to have the connection line body, and the connection line body will gather Lora radio frequency component and gather singlechip electric connection, makes and gathers Lora radio frequency component and gather the singlechip and carry out the information interaction, because the long distance information collection of Lora radio frequency component, so the collecting range is wider, and the information of collection is more, and Lora collector simple structure, and the low power dissipation, the cost is also low.
Drawings
Fig. 1 is a schematic structural diagram of an energy consumption management system based on NB technology according to an embodiment of the present invention;
fig. 2 is a circuit diagram of an NB-IoT wireless communication module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a LoRa collector in an embodiment of the present invention;
fig. 4 is a schematic connection diagram of the LoRa collector in the embodiment of the present invention;
the attached drawings are marked as follows: 10-a power conversion circuit; 11-an energy limiting circuit; a 12-NB-IoT circuit; 13-an MCU circuit; 14-a capacitive storage circuit; 20-collecting plate body; 21-collecting a singlechip; 22-acquisition of Lora radiofrequency elements; 23-a relay; 24-switching signal connector.
Detailed Description
The technical solution in 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.
As shown in fig. 1-4, an embodiment of the present invention discloses an energy consumption management system based on NB technology, which includes a metering sensor for metering the energy consumption of various energy sources corresponding to the various energy sources, wherein the various energy sources in this embodiment include water, electricity, gas, and oil; the metering sensor is electrically connected with a signal input end of the LoRa collector, a signal output end of the LoRa collector is in data communication with the cloud management center through the NB-IoT wireless communication module, the cloud management center is electrically connected with the user mobile terminal, and the cloud management center controls the working state of the energy consumption equipment;
in the embodiment, various energy consumption data reported from the energy consumption metering equipment are transmitted to the cloud management center through the NB-IoT wireless communication module through the LoRa collector, and monitoring personnel can inquire related energy consumption data through a user mobile terminal to realize visual monitoring of the data; the user mobile terminal can send a corresponding control instruction to the cloud management center according to the monitoring result so that the cloud management center can control the working state of the energy consumption equipment according to the control instruction, and reasonable energy utilization is achieved.
The NB-IoT wireless communication module comprises a power supply conversion circuit 10, wherein the input end of the power supply conversion circuit 10 is connected with the output end of a preceding power supply, the output end of the power supply conversion circuit 10 is connected to the input end of an energy limiting circuit 11, and the output end of the energy limiting circuit 11 is connected to the power supply end of an NB-IoT circuit 12; the UART interface and the WKUP pin of the NB-IoT chip in the NB-IoT circuit 12 are connected with the GPIO of the MCU chip in the MCU circuit 13; the power supply terminals of the NB-IoT circuit 12 house the capacitive tank circuit 14.
In the present embodiment, the output voltage of the power conversion circuit 10 is equal to the NB-IoT circuit 12 maximum operating voltage.
In this embodiment, the energy limiting circuit 11 limits the output voltage of the power conversion circuit 10 from 1.3 times to 1.32 times of the design voltage.
In the present embodiment, the capacitor storage circuit 14 is formed by connecting two 220uF capacitors in parallel.
According to the circuit, the power supply circuit selects a BUCK voltage reduction circuit, and the voltage reduction value of 12V power supply provided by the front stage is 3.6V, and the maximum output circuit 1A of the voltage reduction chip is selected. The energy limiting circuit adopts a metal film resistor to limit current, a voltage stabilizing diode limits output voltage, triple protection is adopted, according to the national standard, the energy limiting resistor selects a 1.2 ohm 2W resistor, the diode selects a 6.2V2W voltage stabilizing diode, the energy limiting circuit limits the power supply circuit to output the maximum current of 1A, and the voltage stabilizing tube limits the NB-IoT circuit to output the maximum energy storage capacitance of 500 uF. The NB chip in the NB-IOT circuit is an M5311 type full-network NB chip of the Middling IoT company, and the working voltage is 2.3V-3.6V. The capacitor energy storage circuit selects 2 220uF tantalum capacitors to be connected in parallel to reduce the ESR value. And an MCU in the MCU circuit selects an STM32F103 series single chip microcomputer of ST company.
Calculating the maximum short-circuit current 1A of intrinsic safety parameters of the circuit according to parameters of energy-limiting circuit devices, and calculating the maximum short-circuit current 1.5A according to 1.5 times of safety factors; the maximum load capacitance of 440uF is 660uF calculated as 1.5 times the safety factor.
The MCU collects the current NB signal quality in real time through the serial port, calculates the current required to be consumed by the current starting data sending task according to the NB signal quality value, and prohibits the NB from starting the data sending task when the calculated consumed current value exceeds a set threshold.
The MCU circuit reads the current NB-IoT network signal quality through a UART interface, a software algorithm in the MCU calculates the current required by the NB-IoT circuit when current data are transmitted according to the acquired current NB-IoT network signal quality value, and when the NB-IoT network signal quality is reduced to the point that the power supply current required for starting the wireless communication NB-IoT circuit is larger than the limited energy circuit limit value, the MCU forces the NB-IoT circuit to be in an idle state; and when the NB-IoT network signal quality is monitored to be improved until the power supply current required for starting the wireless communication is less than the limit value of the energy limiting circuit, the wireless data transmission is started again.
The output end of the power supply circuit in the embodiment is connected to the input end of the energy limiting circuit; the output end of the energy limiting circuit is connected to the NB-IoT circuit, and an energy storage circuit is additionally arranged between the NB-IoT circuit and the energy limiting circuit; the MCU circuit is connected with the NB-IoT circuit through the GPIO, acquires NB signal quality of the current network environment, controls NB-IoT circuit power through the signal quality, and can solve the contradiction between the energy limiting circuit and NB-IoT wireless communication and large energy consumption instantly.
In this embodiment, the LoRa collector includes the collection plate body 20, gathers singlechip 21 and gathers LoRa radio frequency component 22, gathers singlechip 21 and sets up in the middle part of gathering the plate body 20, gathers LoRa radio frequency component 22 and sets up the periphery at the collection plate body 20, gathers LoRa radio frequency component 22 and is connected with collection singlechip 21 electricity through the embedded connecting wire body in gathering the plate body 20. The Lora collector adopted in the embodiment is convenient for the collection singlechip to intensively process data by setting the collection singlechip; the acquisition Lora radio frequency element is arranged, so that the acquisition of external information by the acquisition Lora radio frequency element is facilitated; through setting up the connecting wire body, make gather Lora radio frequency component and gather the singlechip and carry out information interaction, because Lora radio frequency component can long distance collect information, so the collection scope is wide, and simple structure, the low power dissipation, and the cost is also low.
In this embodiment, the acquisition board 20 is provided with two relays 23, and the relays 23 are electrically connected to the acquisition single chip 21 through a connection line; the relay 23 is connected with output connectors arranged at the periphery of the acquisition board body 20. This embodiment can realize when breaking down in the circuit through setting up two relays, the relay can play automatically regulated, safety protection, converting circuit's function, and when the trouble was too big or can't adjust, the relay will cut off the circuit, prevents that equipment is impaired, and the output joint of relay arranges in the periphery of gathering the plate body, is convenient for maintain and be connected. Two output connectors can the interval arrangement, the relay heat dissipation of being convenient for to the heat stack that the relay sent makes relay and the inside heat of collector surpass normal temperature scope, influences the normal work of collector.
In this embodiment, the acquisition board 20 is provided with two switch signal connectors 24, and the switch signal connectors 24 are electrically connected to the acquisition single chip 21 through a connection line; two switching signal connections 24 are arranged in parallel. In the embodiment, two switch signal connectors are arranged, so that the acquisition of information of the Lora radio frequency element can be realized when the switch is in an open state; when the switch is in the off state, the acquisition Lora radio frequency element stops acquiring information and stops sending information.
Finally, only the specific embodiments of the present invention have been described in detail. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art to the present invention are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (7)
1. An energy consumption management system based on NB technology, characterized in that:
the energy consumption monitoring system comprises a metering sensor used for metering energy consumption, wherein the metering sensor is electrically connected with a signal input end of a LoRa collector, a signal output end of the LoRa collector is in data communication with a cloud management center through an NB-IoT wireless communication module, the cloud management center is electrically connected with a user mobile terminal, and the cloud management center controls the working state of energy consumption equipment;
the NB-IoT wireless communication module comprises a power supply conversion circuit (10), wherein the input end of the power supply conversion circuit (10) is connected with the output end of a preceding power supply, the output end of the power supply conversion circuit (10) is connected to the input end of an energy limiting circuit (11), and the output end of the energy limiting circuit (11) is connected to the power supply end of an NB-IoT circuit (12); the UART interface and the WKUP pin of the NB-IoT chip in the NB-IoT circuit (12) are connected with the GPIO of the MCU chip in the MCU circuit (13); a capacitive energy storage circuit (14) is placed at a power supply end of the NB-IoT circuit (12).
2. The NB-technology-based energy consumption management system as claimed in claim 1, wherein:
the power conversion circuit (10) output voltage is equal to the NB-IoT circuit (12) highest operating voltage.
3. The NB-technology-based energy consumption management system as claimed in claim 1, wherein:
the energy limiting circuit (11) limits the output voltage of the power conversion circuit (10) to be not more than 1.3-1.32 times of the design voltage.
4. The NB-technology-based energy consumption management system as claimed in claim 1, wherein:
the capacitive energy storage circuit (14) is formed by connecting two 220uF capacitors in parallel.
5. The NB-technology-based energy consumption management system as claimed in claim 1, wherein:
LoRa collector is including gathering plate body (20), collection singlechip (21) and collection LoRa radio frequency component (22), it sets up to gather singlechip (21) gather the middle part of plate body (20), it sets up to gather LoRa radio frequency component (22) gather the periphery of plate body (20), it is in through embedding to gather LoRa radio frequency component (22) connection line body in the plate body (20) with gather singlechip (21) electricity and connect.
6. The NB technology based energy consumption management system of claim 5, wherein:
the acquisition board body (20) is provided with two relays (23), and the relays (23) are electrically connected with the acquisition single chip microcomputer (21) through the connecting line body; the relay (23) is connected with an output connector, and the output connector is arranged on the periphery of the acquisition board body (20).
7. The NB technology based energy consumption management system of claim 5, wherein:
the acquisition board body (20) is provided with two switch signal connectors (24), and the switch signal connectors (24) are electrically connected with the acquisition single chip microcomputer (21) through the connecting line body; two of the switching signal connections (24) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451698.0U CN214751469U (en) | 2021-06-29 | 2021-06-29 | Energy consumption management system based on NB technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451698.0U CN214751469U (en) | 2021-06-29 | 2021-06-29 | Energy consumption management system based on NB technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214751469U true CN214751469U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121451698.0U Active CN214751469U (en) | 2021-06-29 | 2021-06-29 | Energy consumption management system based on NB technology |
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| Country | Link |
|---|---|
| CN (1) | CN214751469U (en) |
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2021
- 2021-06-29 CN CN202121451698.0U patent/CN214751469U/en active Active
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