CN207336590U - NB-IOT Intelligent electric-energy metering devices - Google Patents
NB-IOT Intelligent electric-energy metering devices Download PDFInfo
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- CN207336590U CN207336590U CN201721476008.0U CN201721476008U CN207336590U CN 207336590 U CN207336590 U CN 207336590U CN 201721476008 U CN201721476008 U CN 201721476008U CN 207336590 U CN207336590 U CN 207336590U
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Abstract
A kind of NB IOT Intelligent electric-energy metering devices, including power management module, MCU data processing modules and the NB IOT communication modules being connected with MCU data processing modules, infrared data communication module, RS485 interfaces, data storage, electric energy metering module, RTC real-time clocks, data security module (ESAM), pulse output module, load control module, display and keyboard input module.MCU data processing modules gather the continuous data of electric energy metering module in real time, carry out real time measure to user power utilization situation and data processing, NB IOT communication modules monitor the data that main website issues and return to MCU data processing modules in real time.After electric energy metering device uses NB IOT technologies, it can be very good to reduce product energy consumption, achieve energy-saving and emission reduction purposes, NB IOT have the characteristics that strong penetration capacity, long transmission distance, operation expense are low, can realize highly reliable, remote wireless data communication and control under circumstances.
Description
Technical field
A kind of electric energy metering device is the utility model is related to, especially a kind of NB-IOT Intelligent electric-energy meterings device.
Background technology
It is mutual that all things on earth is become based on cellular arrowband Internet of Things (Narrow Band Internet of Things, NB-IoT)
One important branch of networking network.NB-IoT is implemented in cellular network, only consumes the bandwidth of about 180KHz, can be deployed directly into
GSM network, UMTS network or LTE network, to reduce lower deployment cost, realize smooth upgrade.NB-IoT is that one, IoT fields are emerging
Technology, support low power consuming devices wide area network cellular data connect, also referred to as low-power consumption wide area network (LPWAN).NB-
IoT supports that stand-by time is long, the efficient of network connectivity requirements higher device is connected.It is said that the NB-IoT device battery service lifes can be with
Improve at least 10 years, while very comprehensive indoor cellular data connection covering can also be provided.
With the requirement of the fast development of intelligent grid, user to big data and internet+quick application, particularly
The application of smart mobile phone, electricity consumption data, status inquiry, the remote recharge that can grasp oneself in real time by smart mobile phone are paid the fees
Deng.And current intelligent electric meter application system is also mainly using power line carrier, GPRS communications, RS485 communications, small wireless communication
Etc. mechanics of communication, there are power consumption is high, transmission range is near, penetration capacity is weak, communication success rate is low, follow-up operation for these mechanicss of communication
With maintenance cost it is high the shortcomings of；Therefore use the Intelligent electric-energy metering device based on NB-IOT technologies, so that it may well solve with
Upper problem.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides a kind of NB-IOT Intelligent electric-energy meterings device.
To achieve the above object, the technical solution adopted in the utility model is：A kind of NB-IOT Intelligent electric-energy meterings device,
Including power management module, MCU data processing modules and the NB-IOT communication modules being connected with MCU data processing modules, infrared
Data communication module, RS485 interfaces, data storage, electric energy metering module, RTC real-time clocks, data security module
(ESAM), pulse output module, load control module, display and keyboard input module.Power management module is to input power
Voltage and current carry out treatment and supplied MCU data processing modules and other modules.MCU data processing modules gather electricity in real time
The continuous data of energy metering module, carries out real time measure to user power utilization situation and data processing, NB-IOT communication modules is real-time
Monitor the data that main website issues and return to MCU data processing modules, MCU data processing modules issue data to main website and solve
Control is performed after analysis or passes through pulse output module, RS485 interfaces, infrared data communication module, NB-IOT communication modules, load
Control module output data, display display performs or data message.Data storage storage data and and MCU data processing moulds
Block carries out data exchange.Data security module and MCU data processing modules carry out data exchange and to MCU data processing modules
Data are encrypted.MCU data processing modules receive the information of keyboard input module input.RTC real-time clocks is at MCU data
Manage module and real time clock data is provided.
Preferably, the display is LCD display.
After electric energy metering device uses NB-IOT technologies, it can be very good to reduce product energy consumption, reach the mesh of energy-saving and emission-reduction
, NB-IOT has the characteristics that strong penetration capacity, long transmission distance, operation expense are low, can realize under circumstances
Highly reliable, remote wireless data communication and control.
Brief description of the drawings
Fig. 1 is the electric functional block diagram of the utility model.
Fig. 2 is the circuit diagram of MCU data processing modules.
Fig. 3 is power management module circuit diagram.
Fig. 4 is data storage circuit diagram.
Fig. 5 is electric energy metering module circuit diagram.
Fig. 6 is RTC real time clock circuit schematic diagrams.
Fig. 7 is data security module circuit diagram.
Fig. 8 is load control module circuit diagram.
Fig. 9 is LCD display module circuit diagram.
Figure 10 is key module circuit schematic.
Figure 11 is infrared data communication module circuit schematic.
Figure 12 is the circuit diagram of RS485 interfaces.
Figure 13 is NB-IOT communication module circuit schematics.
Figure 14 is pulse output module circuit diagram.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly, it is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of NB-IOT Intelligent electric-energy meterings device, including power management module, MCU data processing modules
The NB-IOT communication modules that are connected with MCU data processing modules, infrared data communication module, RS485 interfaces, data storage
Device, electric energy metering module, RTC real-time clocks, data security module (ESAM), pulse output module, load control module, LCD
Display and keyboard input module.Power management module carries out treatment and supplied MCU data to the voltage and current of input power
Processing module and other modules.MCU data processing modules gather the continuous data of electric energy metering module in real time, to user power utilization feelings
Condition carries out real time measure and data processing, NB-IOT communication modules monitor the data that main website issues and return to MCU data in real time
Processing module, MCU data processing modules main website is issued after data parse perform control or by pulse output module,
RS485 interfaces, infrared data communication module, NB-IOT communication modules, load control module, RTC real-time clock output datas,
LCD display display performs or data message.Data storage storage data and and MCU data processing modules progress data friendship
Change.Data security module and MCU data processing modules carry out data exchange and the data to MCU data processing modules add
It is close.MCU data processing modules receive the information of keyboard input module input.
As shown in Figure 2：When MCU is worked normally, computation chip is read by P23, P24, P25, P26 computation chip data port
Continuous data and parameter, the data of reading carry out electrical energy metering after MCU handles computing, MCU is by the good electric energy of computing
Electric quantity data etc. is written in eeprom memory by amount by P01, P02, P03I2C data communication mouth；P10、P11、P72、
P62, P63 are NB-IOT communication module data communication mouths, and P13, P14 are RS485 data communication mouths, and main website passes through RS485 or NB-
IOT communication ports carry out teledata to electric energy meter and copy and accept.P75, P76, P77 are button operation mouth, complete human-computer dialogue operation；
P00, P01, P02, P03 port show that power supply and data port, the electric flux for completing electric energy meter are shown for LCD, P130, P20
Spatial load forecasting port, MCU can carry out spatial load forecasting operation by the port.
As shown in Figure 3：220V introducing T1 power transformers are become DC voltage by power management module by J9 ports, and 1
Road converts voltages into 5V DC voltages by U13 linear regulator chips and works for master chip, and another way passes through U8 linear voltage stabilizations
Chip converts voltages into 5V DC voltages and is powered work for NB-IOT and RS485 communication modules.
As shown in Figure 4：Data storage is written and read data by WP, SCL, SDA mouthfuls, and the storage for completing data is appointed
Business.
As shown in Figure 5：Electric energy metering module passes through U20 electric energy computation chips by sampled voltage signal and current signal
Processing be converted to the SPI data by U20 computation chips such as energy data, voltage data, current data and power data
Port sends the related datas such as electric energy to MCU data and is handled, and metrical pulse externally exports carry out accuracy by U19
Detection.
As shown in Figure 6：RTC real-time timepiece chips produce clock data in real time, are provided by SDA, SCL data port for MCU
Real time clock data.
As shown in Figure 7：Data security module is the electric energy meter amount of money, takes the offer such as control, parameter setting encryption and ciphertext data,
Safety assurance is provided for electric energy meter, data security module exchanges data by data ports such as E-IO, E-RST, CLOCK with MCU.
As shown in Figure 8：The circuit that left side is selected for built-in relay in figure, right side are the circuit that external relay is selected.
Load control module is instructed by receiving JDQ1A and JDQ1B, is operated a switch to load relay and shutting-brake control.
As shown in Figure 9：LCD, which is shown, passes through U9 display chips, and the MCU data sent out are converted to LCD liquid crystal display screen
Drive signal, the information such as corresponding numeral and character are shown by LCD liquid crystal display screen.
As shown in Figure 10：When having by key pressing, by the connection of button and GND, MCU detects corresponding low level,
Then it is judged as there is button operation, MCU judges corresponding key command by different Key pad ports, goes to perform corresponding operation
As shown in figure 11：Infrared data communication module receives corresponding infrared communication by U1 infrared communications reception head and refers to
After order, infrared signal is converted into the rs 232 serial interface signal of Transistor-Transistor Logic level and carries out data processing for MCU, after MUC processing data by Q8 and
The level signal that 38KHZ is produced after Q9 progress infrared modulateds launches Infrared communications signals through D1 infrared transmitting tubes.
As shown in figure 12：Level signal on 485 communication chips of U14 real time monitoring RS485B and RS485A order wires, when
When having communication, 485 signal of difference on order wire is converted to the Transistor-Transistor Logic level signal that MCU can identify by 485 communication chips of U14
Data processing is carried out, the data after the completion of MCU processing are converted to after U10 optocouplers are isolated by 4 feet of 485 chips of U14
485 signals are sent out by bus.
As shown in figure 13：NB-IOT communication modules are the low-consumption wireless communication module of public network communication, when module receives
After wireless data, the Transistor-Transistor Logic level module that MCU can identify is converted to by NB-IOT modules, by RX pins send to MCU into
Row processing, after the data after MCU is handled send NB-IOT modules to by TX, is wirelessly transmitted.
As shown in figure 14：Pulse output module is divided into calibration pulse, clock pulses and the output pulse of time zone period etc., calibration
Output pulse is directly exported by computation chip, and clock pulses and the output pulse of time zone period are made choice as requested by MCU
Property output.
Claims (2)
- A kind of 1. NB-IOT Intelligent electric-energy meterings device, it is characterised in that：Including power management module, MCU data processing modules The NB-IOT communication modules that are connected with MCU data processing modules, infrared data communication module, RS485 interfaces, data storage Device, electric energy metering module, RTC real-time clocks, data security module, pulse output module, load control module, display and are pressed Key input module；Power management module the voltage and current of input power is carried out treatment and supplied MCU data processing modules and Other modules；MCU data processing modules gather the continuous data of electric energy metering module in real time, user power utilization situation are carried out real-time Metering and data processing, NB-IOT communication modules monitor the data that main website issues and return to MCU data processing modules in real time, MCU data processing modules main website is issued after data parse perform control or by pulse output module, RS485 interfaces, Infrared data communication module, NB-IOT communication modules, load control module output data, display display performs or data letter Breath；Data storage storage data and and MCU data processing modules progress data exchange；At data security module and MCU data Reason module carries out data exchange and the data to MCU data processing modules are encrypted；It is defeated that MCU data processing modules receive button Enter the information of module input；RTC real-time clocks provide real time clock data for MCU data processing modules.
- A kind of 2. NB-IOT Intelligent electric-energy meterings device as claimed in claim 1, it is characterised in that：The display is LCD display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721476008.0U CN207336590U (en) | 2017-11-08 | 2017-11-08 | NB-IOT Intelligent electric-energy metering devices |
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| CN201721476008.0U CN207336590U (en) | 2017-11-08 | 2017-11-08 | NB-IOT Intelligent electric-energy metering devices |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966168A (en) * | 2018-06-08 | 2018-12-07 | 金卡智能集团股份有限公司 | Internet of Things gauge table, communication board and the Internet of Things gauge table means of communication based on NB-IoT |
| CN109787362A (en) * | 2019-03-20 | 2019-05-21 | 上海锐至信息技术有限公司 | A kind of energy consumption monitoring and Communication Block warning device and system for communication equipment |
| CN110191049A (en) * | 2019-06-17 | 2019-08-30 | 国网江西省电力有限公司鹰潭供电分公司 | A kind of intelligent gateway |
| CN110768378A (en) * | 2019-10-29 | 2020-02-07 | 广州供电局有限公司 | Measurement load control terminal |
| CN111735999A (en) * | 2020-08-11 | 2020-10-02 | 国网黑龙江省电力有限公司供电服务中心 | Internet of things ammeter based on NB-IoT communication technology |
-
2017
- 2017-11-08 CN CN201721476008.0U patent/CN207336590U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966168A (en) * | 2018-06-08 | 2018-12-07 | 金卡智能集团股份有限公司 | Internet of Things gauge table, communication board and the Internet of Things gauge table means of communication based on NB-IoT |
| CN109787362A (en) * | 2019-03-20 | 2019-05-21 | 上海锐至信息技术有限公司 | A kind of energy consumption monitoring and Communication Block warning device and system for communication equipment |
| CN110191049A (en) * | 2019-06-17 | 2019-08-30 | 国网江西省电力有限公司鹰潭供电分公司 | A kind of intelligent gateway |
| CN110768378A (en) * | 2019-10-29 | 2020-02-07 | 广州供电局有限公司 | Measurement load control terminal |
| CN111735999A (en) * | 2020-08-11 | 2020-10-02 | 国网黑龙江省电力有限公司供电服务中心 | Internet of things ammeter based on NB-IoT communication technology |
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