CN206369557U - A kind of electric energy acquisition and environment sensing node device based on Zigbee protocol - Google Patents
A kind of electric energy acquisition and environment sensing node device based on Zigbee protocol Download PDFInfo
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- CN206369557U CN206369557U CN201621183312.1U CN201621183312U CN206369557U CN 206369557 U CN206369557 U CN 206369557U CN 201621183312 U CN201621183312 U CN 201621183312U CN 206369557 U CN206369557 U CN 206369557U
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Abstract
The utility model discloses a kind of electric energy acquisition based on Zigbee protocol and environment sensing node device, including electric energy acquisition and environment sensing node device, remote server and city's electric equipment and electricity consumption facility, it is characterised in that：Described electric energy acquisition and environment sensing node device shell are socket structure, electric energy acquisition and environment sensing node device shell also include the plug of connection civil power, and city's electric equipment and electricity consumption facility are connected to the socket of electric energy acquisition and environment sensing node device electrical equipment；Circuit board is arranged on inside electric energy acquisition and environment sensing node device；Solve the shortcomings of legacy user can not carry out complete analysis to energy information, electrical energy consumption analysis and the data foundation of prediction can not be provided for power supply department, it can not be controlled in electricity expenditure, provide facility in terms of the interacting of power supply unit and user, it is impossible to the problem of meeting growing society's electricity consumption demand.
Description
Technical field
The utility model is related to a kind of electric energy acquisition and environment sensing node device, more particularly to a kind of based on ZigBee associations
The electric energy acquisition and environment sensing node device of view, belong to electric energy quality monitoring field.
Background technology
As social economy is fast-developing, power demand continues to increase, and power supply and demand situation constant tension, electricity consumption
Situation very severe.Therefore, according to China's national situation, power industry has formulated strong intelligent grid development plan.With intelligent electricity
The development of net, for more preferable service user, it is desirable to provide more accurate and real-time electric energy energy consumption monitoring.Node material object design
Into socket type, the real-time monitoring to user side electric energy is completed.System accuracy is high, stability is good, is user's selection electricity consumption row
To provide a favourable reference.
At present, pyroelectric monitor equipment can only often record total electricity consumption, can not grasp the real-time electricity consumption situation of electrical equipment.
Traditional mode is that the single-phase type electronic electric energy meter that most domestic family and enterprise install and use is measured, but its display interface
Small, information storage is also small, and disposal ability is limited, poor operability, can only read the total electricity consumption of user monthly, user can not
The shortcomings of complete analysis is carried out to energy information, it is impossible to provide electrical energy consumption analysis and the data foundation of prediction for power supply department, no
It can be controlled in electricity expenditure, provide facility in terms of the interacting of power supply unit and user, it is impossible to meet growing society's use
Electric demand.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electric energy acquisition based on Zigbee protocol and environment sense
Know node device, solving traditional mode using a kind of electric energy acquisition based on Zigbee protocol and environment sensing node device is
The single-phase type electronic electric energy meter metering that most domestic family and enterprise install and use, but its display interface is small, information storage
Amount is also small, and disposal ability is limited, poor operability, can only read the total electricity consumption of user monthly, and user can not be to energy information
The shortcomings of carrying out complete analysis, it is impossible to provide electrical energy consumption analysis and the data foundation of prediction for power supply department, it is impossible to used in electricity
Facility is provided in terms of degree control, the interacting of power supply unit and user, it is impossible to meet asking for growing society's electricity consumption demand
Topic.
The technical solution adopted in the utility model be a kind of electric energy acquisition and environment sensing node device based on ZigBee,
Including electric energy acquisition and environment sensing node device, remote server and city's electric equipment and electricity consumption facility, described electric energy is adopted
Integrate and environment sensing node device shell is socket structure, electric energy acquisition and environment sensing node device shell also include connection city
The plug of electricity, city's electric equipment and electricity consumption facility are connected to the socket of electric energy acquisition and environment sensing node device electrical equipment；Circuit
Plate is arranged on inside electric energy acquisition and environment sensing node device.
Described circuit board includes electric energy acquisition circuit board and TelosB circuit boards, electric energy acquisition template and TelosB circuits
Plate is connected.
Integrated electric energy metering module and power module in described electric energy collection module, electric energy metering module and user load
Connection；Power module is powered by induction coil to electric energy collection module, and described electric energy collection module output signal is connected to
Electric energy metering module, the power supply of electric energy metering module is provided by power module.
Integrated MCU, warm and humid optical measuring module, radio receiving transmitting module and AccessPort mould on described TelosB circuit boards
Block, described MCU is connected with warm and humid optical measuring module, electric energy metering module, radio receiving transmitting module, AccessPort module respectively,
MCU power supplys are provided by power module.
Using the technical solution of the utility model, the electricity that node diaphragm capsule need to be only inserted in powered outlet, diaphragm capsule
Civil power is just converted into direct current by source module, is that electric energy metering module is powered, and electric energy metering module is responsible for gathering the electricity of electrical appliance
Pressure, electric current, four groups of data of active power and power consumption, by data from the wireless transmission in diaphragm capsule by the way of Zigbee protocol
Module is sent to remote server, you can realize to the voltage of electricity consumption user, electric current, four groups of data of active power and power consumption
Accurate acquisition and in real time transmission, only can need in real time gather the electricity consumption situation of user by the monitoring system of server end, and right
All information collected carry out comprehensive analysis.
Circuit board of the present utility model include electric energy acquisition circuit board and TelosB circuit boards, electric energy acquisition template with
TelosB circuit boards are connected, and the space that module is individually arranged are substantially reduced by the way of integrated so that the body needed for diaphragm capsule
Product is smaller, more easy to install.
Integrated electric energy metering module and power module in electric energy collection module of the present utility model, electric energy metering module is with using
Family load connection；Power module is powered by induction coil to electric energy collection module, described electric energy collection module output signal
Electric energy metering module is connected to, the power supply of electric energy metering module is provided by power module, substantially reduced by the way of integrated
The space that module is individually arranged so that the volume needed for diaphragm capsule is smaller, more easy to install.
Integrated MCU, warm and humid optical measuring module, radio receiving transmitting module and serial ports are adjusted on TelosB circuit boards of the present utility model
Die trial block, described MCU connects with warm and humid optical measuring module, electric energy metering module, radio receiving transmitting module, AccessPort module respectively
Connect, MCU power supplys are provided by power module, the space that module is individually arranged is substantially reduced by the way of integrated so that diaphragm capsule
Required volume is smaller, more easy to install.
In summary, it can solve to pass using a kind of electric energy acquisition based on Zigbee protocol and environment sensing node device
The mode of system is that the single-phase type electronic electric energy meter that most domestic family and enterprise install and use is measured, but its display interface
Small, information storage is also small, and disposal ability is limited, poor operability, can only read the total electricity consumption of user monthly, user can not
The shortcomings of complete analysis is carried out to energy information, it is impossible to provide electrical energy consumption analysis and the data foundation of prediction for power supply department, no
It can be controlled in electricity expenditure, provide facility in terms of the interacting of power supply unit and user, it is impossible to meet growing society's use
The problem of electric demand.
Brief description of the drawings
Fig. 1 is the utility model system schematic figure；
Fig. 2 is the utility model outward appearance front view；
Fig. 3 is the utility model outside side view.
Embodiment
Utility model is described further below.
As shown in Figures 1 to 3, a kind of electric energy acquisition and environment sensing node device based on ZigBee, including electric energy acquisition
And environment sensing node device, remote server and city's electric equipment and electricity consumption facility, electric energy acquisition and environment sensing node are set
Standby shell is socket structure, and electric energy acquisition and environment sensing node device shell also include the plug of connection civil power, city's electric equipment
The socket of electric energy acquisition and environment sensing node device electrical equipment is connected to electricity consumption facility；Circuit board be arranged on electric energy acquisition and
Inside environment sensing node device.
Civil power input is converted into direct current electricity output by power module, electrical appliance is connected with electric energy collection module, and electric energy is adopted
The positive and negative simulation input pin for collecting module and electric energy metering module is connected, and the output end of electric energy metering module and power module connects
Connect, the output end connection of MCU and power module, Asynchronous communications port and the MCU connection of electric energy metering module, warm and humid photo measure mould
The output end of block is connected with MCU, and the input of wireless transmitting-receiving module is connected with MCU, and output end and the MCU of AccessPort module connect
Connect.
Diaphragm capsule of the present utility model can use metal diaphragm capsule or plastics diaphragm capsule, and diaphragm capsule outward appearance can be square, or circular
And other any profiles, the present embodiment uses plastic casing, and profile uses square outer box.
The power module (being integrated on electric energy acquisition circuit board) that the utility model is used is the electricity based on Zigbee protocol
Energy and environment information acquisition node are mainly electrical appliance in faced chamber, make the pattern of socket, therefore design utilizes AC 220V/
50HZ Alternating Current Power Supplies.Power module needs to export DC3.3V, DC5V in hardware circuit.Electric current passes through transformer transformation and diode
After rectification, into 7805 circuit of three-terminal voltage-stabilizing integrated, direct current 5V is exported, then provide straight by SP1117-3.3 three-terminal voltage-stabilizings chip
Flow 3.3V.
The electric energy collection module and metering module (being integrated on electric energy acquisition circuit board) that the utility model is used are using electricity
Can computation chip RN8209G, it be Shenzhen Rui Nengwei Science and Technology Ltd.s production it is a can measure active power, it is functional
Amount, and the chip of current effective value, voltage effective value, frequency, zero passage interruption etc. can be provided simultaneously.
RN8209G power consumptions are very low, and representative value is 32mW.Powered using DC 5V power supplys, inside includes power supply monitoring electricity
Road, when supply voltage is less than 4V ± 0.1V, chip is reset, the chip normal work when supply voltage is higher than 4.3V ± 0.1V.
The effect of internal electric source supervisory circuit is the reliably working of chip when ensureing upper electricity and power-off.In normal work, supply voltage
Fluctuation should not exceed ± 0.3V.
RN8209G provides two-way electric current and voltage effective value is measured all the way, including three road ADC, is respectively intended to phase line electricity
Stream, neutral line current and voltage are sampled.Measurement error very little：Electric current and voltage are 400:In 1 dynamic range, virtual value error
<0.5%, active energy and reactive energy error are 1500:In the range of 1<0.1%.
RN8209G is communicated using UART generic asynchronous serials mouthful with microcontroller, and TX is sent, and RX is received.Support total
Gain, phase and the offset corrections of word.Active and reactive electrical energy pulse is exported from PF, QF pin respectively.
MCU is configured and corrected to computation chip by UART serial ports.The characteristics of UART interface be operated in slave pattern,
Half duplex communication, 9 UART (containing even parity bit), frame structure includes verification and byte.It communicates frame format by CMD (command words
Section)+DATA (data byte)+CKSM (verification and byte) composition.
Chip configures baud rate by hardware pins B1 and B0, has four kinds of baud rates available, by being wirelessly transferred
Speed etc. considers, and the baud rate of the utility model configuration is 9600bps.
Warm and humid optical sensor (being integrated on TelosB circuit boards) of the present utility model is the important composition portion of acquisition system
Point.The sensor that TelosB nodes are used in the utility model is the integral core of SHT11 temperature humidities of Sensirion companies production
Piece, has the advantages that to exempt from debugging, non-calibrating, provides numeral output, good uniformity, it is adaptable to the utility model system.Core
The operating voltage of piece is 2.4~5.5V.The temperature range of SHT11 measurements is -40 DEG C~+120 DEG C, RH range 0~
100%RH.Measurement data is exported in digital form.Temperature survey resolution ratio is 0.01 DEG C, and precision is ± 0.4 DEG C.The survey of humidity
Amount is affected by temperature, when temperature is 25 DEG C, and moisture measurement resolution ratio can reach 0.05%RH, and precision is ± 3.0%RH.
SHT11 inside contains a thermally sensitive part and a part to humidity sensitive.Temperature-sensitive components are by energy gap
What material made, and humidity sensitive components are by being that capacitive character condensate makes.Both parts and a serial interface circuit and one
ADC is integrated on a single die.
The TelosB nodes that the utility model is used, on the basis of the function that temperature humidity is gathered in real time is realized, also
By using optical sensor S1087 and S1087-01, the collection to visible ray and infrared light is realized.They are a kind of ceramics bags
The photodosimeter of dress, it is output as standard current signal, and ceramic package is sealed available for light, and backlight and sidelight can not reach survey
Behaviour area is measured, so as to accurately carry out the signal measurement of visible ray and infrared light.
It is standard current signal due to what is exported from sensor, and A/D changes benchmark into voltage, so, Acquisition Circuit is led to
100k Ω load resistances are crossed, the current signal that sensor is exported is converted into voltage signal, then the voltage signal is sent into again
ADC12 modules are changed in MCU piece.
It is that sensor is gathered and transmitted that the MCU that the utility model is used, which (is integrated on TelosB circuit boards) main function,
The data come over are received and handled, and result is transferred into wireless module after processing is complete, outside by wireless module
Distribution.In addition, the control data bag that MCU can also be received according to wireless module, parses control instruction therein, and according to finger
Order is operated to other hardware.
The selected MCU of the utility model is the MSP430F1611 of TI companies issue.The characteristics of product is low-power consumption, energy
It is enough to be worked in 1.8V~3.6V voltage environment, and allow the continuous service under low voltage environment, through measurement, only by RAM
In the case that progress data are temporary, the product power consumption is 0.2 μ A.Wherein 48KB FLASH memories can support online programming and
Emulation, and with peripheral hardware in stronger disposal ability and abundant piece.
A/D passages in MCU pieces are used as analog acquisition.And the I/O mouthfuls of collections being then used as to digital quantity.It is logical for serial ports
Letter, the product is realized using UART.Meanwhile, the single-chip microcomputer uses 32KHz clock signal, relies on crystal oscillator and comes to system
Clock is realized.To avoid the input clutter that power supply is produced from producing influence to signal, single-chip microcomputer adds filter in power unit
Ripple electric capacity is filtered to the clutter, removes interference.
The wireless sensor network section for the radio receiving transmitting module (being integrated on TelosB circuit boards) that the utility model is used
Receipts and the hair for completing to wrap are needed between point.Therefore needed inside it while there is packet receiving and module of giving out a contract for a project.Key be by from
MCU bit stream (byte sequence or frame) is converted to radio wave.In actual applications, generally using a kind of entitled wireless receiving and dispatching
The equipment of machine (Transceivers) realizes transmitting and receiving service.The function that the equipment is provided simultaneously with receiving telegraph and transmitted messages.Generally, wireless
It is transmitted simultaneously on channel and reception is unpractical (receiver can only intercept the transmission of itself), so we uses
Half-duplex operation.
The chip for the CC2420 that the utility model is produced using Chipcon companies is used as transceiver.The chip is compatible
2.4GHz IEEE 802.15.4.It has been internally integrated voltage controlled oscillator, and operation power consumption is extremely low, need to only provide exterior antenna and
The required circuit such as 16MHz crystal oscillators, it is possible to directly work.CC2420 uses O-QPSK modulation systems, and its energy consumption is extremely low, sensitivity
- 94dBm is can reach, and with superpower antijamming capability, adjacent channel signal can be effective against this channel signal is done
Disturb.The communication performance of the product can be such that data reliability and validity is ensured well.At the same time, the chip is propped up
The message transmission rate held is higher, and 250kbps can be reached using the solution wireless data transmission rate of the chip.Should
Characteristic is highly beneficial to multiple spot fast wireless networking.
The chip can be to be consistent with external logic element and compatible with as little as 1.8V voltage power supply, external number
Word acquisition port employs 3.3V operating voltage.It is different that the chip completes disparate modules in piece by integrated direct current stabilizer
Conversion between voltage.So for there was only the equipment of 3.3V power supplys, it is not necessary to which extra voltage conversion circuit just can normal work
Make.
CC2420 pins are low level, then it represents that the chip have received SFD bytes.The chip will receive hardware frame number
According to being stored in 128K first in first out buffer queue, while completing the CRC check to the data by related hardware.CC2420's
Length, mac frame head and the mac frame that FIFO buffer areas preserve mac frame load three parts, without preserving frame check code.CC2420
When sending data, targeting sequencing, the frame of data frame start separator and frame check sequence is produced by hardware；When receiving data,
These parts are served only for carrying out frame synchronization and CRC check, and FIFO buffer areas are received without being saved to.
The serial communication modular (being integrated on TelosB circuit boards) that the utility model is used is based on Zigbee protocol
The effect of electric energy and the serial communication modular in environment information acquisition node is to realize interacting between PC and node.Utilize serial ports
Communication module, PC can be by software delivery node, it is possible to which each node data is extracted and exported.
Serial port module uses FTDI FT232RL chips.The chip realize USB and RS232 RS422 RS485
Bi-directional conversion.The data that it can receive node are carried by USB is transferred to PC processing.The flow is by solidifying in the chips
Algorithm realize that system developer is without to realizing that details is designed.
TXD the and RXD pins of serial communication modular are respectively intended to send and receive asynchronous data.DTR# output data terminals
Ready control signal；DSR# input datas set ready control signal.RTS# is responsible for exporting request and spreads out of control signal；
CTS# is responsible for replacement and clearing to control signal.The control signal that DCD# is responsible for data carrier detection provides input.RI# is used
Control signal is indicated in input jingle bell.Once EEPROM medium-long ranges wake up option activation, the signal that RI# pins receive can be changed into
Low level, now system can actively USB host controller be restored from halted state.MCP1700T is a linear voltage regulator,
It is responsible for providing the function that USB interface voltage is changed from 5V to 3.3v, is supplied to FT232RL VCCIO pins.
Equipment can be pacified after above-mentioned hardware and module are carried out into connection and installation according to the technical solution of the utility model
Mounted in user with electric line, power load is then plugged, you can proceed by data acquisition and transmission.Most data are adopted at last
Collect and be transferred to long-range server end.
Claims (4)
1. a kind of electric energy acquisition and environment sensing node device based on Zigbee protocol, including electric energy acquisition and environment sensing section
Point device, remote server, city's electric equipment and electricity consumption facility, it is characterised in that：Described electric energy acquisition and environment sensing section
Point device shell is socket structure；Described electric energy acquisition and environment sensing node device wirelessly with remote server
End connection, electric energy acquisition and environment sensing node device are connected with city's electric equipment and electricity consumption facility respectively；Electric energy acquisition and ring
Border sensing node device housings also include the plug of connection civil power, and city's electric equipment and electricity consumption facility are connected to electric energy acquisition and environment
The socket of sensing node equipment electrical equipment；Circuit board is installed inside electric energy acquisition and environment sensing node device.
2. a kind of electric energy acquisition and environment sensing node device based on Zigbee protocol according to claim 1, it is special
Levy and be：Described circuit board includes electric energy acquisition circuit board and TelosB circuit boards, electric energy acquisition template and TelosB circuits
Plate is connected.
3. a kind of electric energy acquisition and environment sensing node device based on Zigbee protocol according to claim 2, it is special
Levy and be：Integrated electric energy metering module and power module in described electric energy collection module, electric energy metering module and user load
Connection；Power module is powered by induction coil to electric energy collection module, and described electric energy collection module output signal is connected to
Electric energy metering module, the power supply of electric energy metering module is provided by power module.
4. a kind of electric energy acquisition and environment sensing node device based on Zigbee protocol according to claim 2, it is special
Levy and be：Integrated MCU, warm and humid optical measuring module, radio receiving transmitting module and AccessPort module on described TelosB circuit boards,
Described MCU is connected with warm and humid optical measuring module, electric energy metering module, radio receiving transmitting module, AccessPort module respectively, MCU
Power supply is provided by power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183312.1U CN206369557U (en) | 2016-10-28 | 2016-10-28 | A kind of electric energy acquisition and environment sensing node device based on Zigbee protocol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621183312.1U CN206369557U (en) | 2016-10-28 | 2016-10-28 | A kind of electric energy acquisition and environment sensing node device based on Zigbee protocol |
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ID=59390032
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| CN201621183312.1U Active CN206369557U (en) | 2016-10-28 | 2016-10-28 | A kind of electric energy acquisition and environment sensing node device based on Zigbee protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725031A (en) * | 2017-10-10 | 2018-02-23 | 东北大学 | A kind of indicator card harvester and method based on electrical power and counterweight |
-
2016
- 2016-10-28 CN CN201621183312.1U patent/CN206369557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725031A (en) * | 2017-10-10 | 2018-02-23 | 东北大学 | A kind of indicator card harvester and method based on electrical power and counterweight |
| CN107725031B (en) * | 2017-10-10 | 2020-09-11 | 东北大学 | Indicator diagram acquisition device and method based on electric power and balance weight |
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