CN102074855A - Zigbee technology-based wireless intelligent socket for monitoring fine grit electric quantity - Google Patents
Zigbee technology-based wireless intelligent socket for monitoring fine grit electric quantity Download PDFInfo
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Abstract
The invention relates to a device for automatically metering electrical quantity and controlling an alternating current circuit of an electrical appliance to switch on or off and provides a safe, accurate and convenient intelligent wireless sensor for monitoring the electrical quantity, which can achieve the functions of wirelessly and automatically logging data, monitoring the electrical quantity of single electrical appliance, automatically controlling the on/off of the electrical equipment and the like. The technical scheme adopted by the invention is that the Zigbee technology-based wireless intelligent socket for monitoring fine grit electric quantity is connected into a 220V power supply system and comprises a monitoring part, a wireless micro control module, a power supply module and a relay control module, wherein the monitoring part consists of a current transformer, a voltage transformer, a current-voltage converting circuit and a chip special for an electronic electric energy meter; the wireless micro control module consists of a wireless micro controller and an RS232 communication chip; the power supply module consists of a power supply converting chip; and the control part is realized by an electromagnetic relay. The wireless intelligent socket is mainly applied to automatically metering the electric quantity and controlling the alternating circuit of the electrical appliance to switch on or off.
Description
Technical field
The present invention relates to the device that automatic gauge electric weight and control electrical appliance ac circuit open and close, relate in particular to a kind of intellectual electric weight watch-dog, based on the fine granularity electric weight monitoring intelligent wireless socket of Zigbee technology based on wireless sensor network.
Background technology
At present, the whole world all is in the state of energy scarcity, and energy savings has very important significance for SUSTAINABLE DEVELOPMENT OF CHINA.Want energy savings, just must reasonably utilize the limited energy.This reduces to minimum with regard to requiring to accomplish with without reason waste, need carry out the power consumption monitoring to electrical appliance, but existing measuring equipment all is to be used for total power consumption information of metering user, and the power consumption situation that each electrical equipment is detailed is had no way of obtaining.Studies show that the feedback of fine granularity electrical equipment power consumption in real time can change user behavior, make power consumption reduce by 10% to 20%.In addition, also need electrical equipment is controlled except measuring, after closing as TV, the set-top box that is attached thereto, sound equipment etc. also will be closed automatically with energy-conservation; Computer does not use for a long time and will close, and closes the annexes such as printer that are attached thereto.As seen, for effectively energy-conservation, be badly in need of a kind of statistics and control device that the detailed power consumption situation of household electrical appliances can be provided.The detailed energy consumption of also only knowing each electrical equipment can be accomplished reasonably energy-conservation, otherwise can make troubles to life.
Existing invention " smart jack " [1] also can realize controlling the break-make that is inserted in electrical appliance loop on the socket, but it realizes that by timer break-make is only decided by simple time index.[2] have and electric quantity monitoring and wireless transmission function, but do not possess the function that electrical appliance loop break-make is controlled.[3] have the used electric weight of electrical appliance that inserts by socket by the dial plate demonstration, but do not possess radio communication function and break-make controlled function.[4] utilize singlechip technology and wireless communication technology to realize the working condition of electrical appliance is monitored.[5] break-make by control power consumption equipment power supply reaches energy-conservation, but it can only timing controlled, does not reach the control of program control or outside customized event.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of safe, accurately, electric weight monitoring intelligent wireless senser easily, can realize the electric weight of wireless automatic meter reading, a power consumption equipment of monitoring, control application such as power consumption equipment break-make automatically.For achieving the above object, the technical scheme that the present invention takes is, a kind of fine granularity electric weight monitoring intelligent wireless socket based on the Zigbee technology, be connected in 220 volts of electric power systems, be made of monitoring part, wireless microcontroller module, power module and relay control module, the monitoring part is made up of current transformer, voltage transformer, stream/pressure translation circuit, electronic electric energy meter special chip; Wireless microcontroller module is made up of wireless microcontroller, RS232 communication chip; Power module is made up of power conversion chip, and control section then is to be realized by electromagnetic relay; Voltage sample and current sample result are converted to the signal of electronic electric energy meter special chip acceptance by stream/pressure translation circuit and input to the input end of analog signal of electronic electric energy meter special chip, the various electrical quantitys that the electronic electric energy meter special chip is calculated electric energy and comprised active power, reactive power, power factor by the electric energy computing function of inside in view of the above, and deposit in the corresponding registers by type; Wireless microcontroller module links to each other with the electronic electric energy meter special chip by bi-directional serial interface, reads the various electrical quantity data of measurement, and the radio communication circuit by inside will measure the result and transmit to control centre.
Described current transformer is the alternating current sampler, adopt special isolation module, convert together tested alternating current to the little ac current signal of homophase frequently, the N line of 220V is passed instrument transformer according to the input signal direction on the current transformer Product labelling, to guarantee output signal and measured signal homophase.
Described voltage transformer is the alternating voltage sampler, adopt special isolation module, tested alternating voltage is isolated the little ac current signal that converts to the frequency homophase, the N line of 220V is connected with V-with V+ respectively according to the mark on the voltage transformer Product labelling with the L line, to guarantee output signal and input signal homophase.
Described stream/pressure translation circuit is that current transformer, measured electric current, the voltage signal of voltage transformer are converted to little electric current, voltage signal in the electronic electric energy meter chip analog input end claimed range.
Described electronic electric energy meter special chip be a kind of can monitoring current, the special chip of electrical quantity such as voltage, power, electric weight.
Described wireless microcontroller is a kind of low-power consumption Zigbee radio communication micro treatment module.Realize Zigbee communication protocol, can carry out transfer of data with other Zigbee equipment networks.
The present invention's beneficial effect compared with prior art is, adopted high-precision electronic electric energy meter special chip, cooperate low-consumption wireless microcontroller module to implement energy monitor, both can be installed in the head end of user's electricity metering device house lead in, the power consumption that all power consumption equipments of monitor user ' are total has overcome the inconvenience of power consumption equipment manual metering, also can connect single power consumption equipment, monitor the fine granularity energy consumption of this equipment, can also dynamically control the break-make of electrical appliance simultaneously.In addition,, therefore, can be used for and other equipment composition network that has the Zigbee module, use thereby electric quantity data is had widely because this equipment is equipped with wireless micro controller module (Zigbee module).Simple being suitable for, simple for structure, low-power consumption, low cost.This equipment can be used for the electricity consumption power consumption monitoring of dwelling house, large-scale store, supermarket, building and factory and enterprise, can also provide aid for following Spot Price
Description of drawings
Fig. 1 is an operation principle block diagram of the present invention;
Fig. 2 is an applied voltage transformer circuit connection layout of the present invention;
Fig. 3 is the used current transformer circuit connection layout of the present invention;
Fig. 4 is the interface connection layout of electric energy meter chip CS5463 and wireless microcontroller module J N5139 module;
Fig. 5 is the connection layout of wireless microcontroller module J N5139 module and RS232 communication chip;
Fig. 6 is power module circuitry figure of the present invention.
Fig. 7 is the relay module peripheral circuit diagram.
Embodiment
The present invention designs and has realized one based on the household electric appliance energy consumption fine granularity metering of Zigbee and the intelligent wireless socket of control, this equipment is monitored the power consumption of household electrical appliance in real time, a plurality of equipment can be set up the wireless sensor network platform, and can by this network with the power consumption data collection of all electrical equipment in server, check for the user.Simultaneously,, can analyze the data of long-term collection based on this platform, digging user electricity consumption behavior pattern, and then consumer electronics carried out Based Intelligent Control.Control command of the present invention can be fixedly installed in the equipment, also can be set by user flexibility by server.
The present invention can also be applied to check meter.Traditional checking meter needs the meter reading personnel regularly to copy from house to house to fetch data, after the expense of settling accounts out, collect to each family again, and such meter reading method error is big, workload is big, not only inconvenience but also dangerous.The newest research results of computer technology, network technology and microelectric technique is applied to kilowatt meter reading-out system, does not need personnel to reach the spot just to finish automatic data collection, account clearing, saved the time, human and material resources, improved operating efficiency.Real-time user uses data, helps the monitoring management raising utilization benefit that administrative department realizes the energy, is the basis of realizing energy dispensing automation in the future, and helps to improve administrative department's management modernization level.
Further describe the present invention below in conjunction with drawings and Examples.
A kind of energy monitor intelligent wireless sensor is connected in 220 volts of electric power systems, is made of monitoring part, wireless microcontroller module, power module and relay control module.It is characterized in that the monitoring part is made up of current transformer, voltage transformer, stream/pressure translation circuit, electronic electric energy meter special chip.Wireless microcontroller module is made up of wireless microcontroller, RS232 communication chip.Power module is made up of power conversion chip, and control section then is to be realized by electromagnetic relay.
Described current transformer is a kind of alternating current sampler, adopts special isolation module, converts together tested alternating current to the little ac current signal of homophase frequently.The N line of 220V is passed instrument transformer according to the input signal direction on the current transformer Product labelling, to guarantee output signal and measured signal homophase.
Described voltage transformer is a kind of alternating voltage sampler, adopts special isolation module, tested alternating voltage is isolated the little ac current signal that converts to the frequency homophase.The N line of 220V is connected with V-with V+ respectively according to the mark on the voltage transformer Product labelling with the L line, to guarantee output signal and input signal homophase.
Described stream/pressure translation circuit is that current transformer, measured electric current, the voltage signal of voltage transformer are converted to little electric current, voltage signal in the electronic electric energy meter chip analog input end claimed range.
Described electronic electric energy meter special chip be a kind of can monitoring current, the special chip of electrical quantity such as voltage, power, electric weight.
Described wireless microcontroller is a kind of low-power consumption Zigbee radio communication micro treatment module.Realize Zigbee communication protocol, can carry out transfer of data with other Zigbee equipment networks.
Signal input and output pin T1IN, the R1OUT of described RS232 communication chip is connected with TXD, the RXD of microcontroller, and T2IN, R2OUT are connected with RTS, the CTS of microcontroller.Microcontroller sends the computer user to by the RS232 chip after the data that obtain are carried out computational analysis.
Described power conversion chip is a kind of chip that is plank chip operation required voltage with external 5V power source conversion.
Described relay control module is made of electromagnetic relay and peripheral control circuit.Electromagnetic relay is realized the function of Digital Signals machinery break-make, and peripheral circuit is realized the voltage with 3V control voltage control 5V.Because the closure of relay needs the voltage of about 4V to 5V, so can't directly directly control with the 3V output signal.Peripheral circuit realizes that with an ambipolar triode B utmost point connects the 3V control signal, and the E utmost point connects the 5V manipulated signal.
Operation principle of the present invention is: respectively voltage sample and current sample result are converted to signal that the electric energy meter chip accepts and the input end of analog signal that inputs to the electric energy meter chip by stream/pressure translation circuit, the electric energy meter chip calculates various electrical quantitys such as electric energy and active power, reactive power, power factor by the electric energy computing function of inside in view of the above, and deposits in the corresponding registers by type.Wireless microcontroller module links to each other with the electric energy meter chip by bi-directional serial interface, reads the various electrical quantity data of measurement, and the wireless communication module by inside will measure the result and transmit to control centre.
As Fig. 1, this energy monitor intelligent wireless sensor is made of monitoring part, wireless microcontroller module, power module.Voltage, current signal are converted to the signal of electric energy meter chip reception and input to the input end of analog signal of electric energy meter chip by the sampling of voltage transformer, current transformer and by stream/pressure translation circuit respectively, the electric energy meter chip calculates various electrical quantitys such as electric energy and active power, reactive power, power factor by the electric energy computing function of inside in view of the above, and deposits in the corresponding registers by type.Wireless microcontroller module links to each other with the electric energy meter chip by bi-directional serial interface, reads the various electrical quantity data of measurement, and the radio communication circuit by inside will measure the result and transmit to control centre.
The monitoring part is equipped with voltage transformer, current transformer and electronic electric energy meter special chip on the electric major loop of monitored power consumption equipment, to obtain the electric quantity data of power consumption equipment.
Control section is equipped with electromagnetic relay on the electric major loop of controlled power consumption equipment, with the loop break-make of control power consumption equipment.
The electronic electric energy meter special chip adopts the chip of the ammeter on the upper side CS5463 of U.S. Cirrus Logic company development and production, has serial line interface and delta sigma A/D converter, can carry out high-speed power (electric energy) and calculate.In addition, also have temperature sensor in the CS5463 sheet, help the designer to adjust the temperature drift error, improve certainty of measurement.CS5463 voltage and current input channel all adopts the difference input.The voltage channel input range is 150mV (rms), and current channel is according to the difference (being 10 or 50) of gain setting, and corresponding input voltage range is 150mV (rms) or 30mV (rms).
As Fig. 2, voltage transformer adopts the rich WB Series P T43B002 alternating voltage sampler of dimension, is 1: 1 current mode voltage transformer of no-load voltage ratio.Adopt special isolation module, tested alternating voltage is isolated the little ac current signal that converts to the frequency homophase.The N line of 220V is connected with V-with V+ respectively according to the mark on the voltage transformer Product labelling with the L line, to guarantee output signal and input signal homophase.This instrument transformer reaches the measurement purpose by ask for the 1mA electric current from input circuit, must use outside calibration resistance during work, and resistance is chosen by 1000 Ω/V, and the change resistance can reach the purpose of measuring different voltages.The present invention elects resistance as 330K Ω, is used for measuring alternating current 220V voltage.Be output as the output of follow current source, the full scale nominal is output as 1mA, must seal in sampling resistor during use in output loop.The voltage range that requires according to the electric energy meter chip CS5463 that connects later is 150mV, and resistance is decided to be 150 Ω.
As Fig. 3, current transformer adopts the rich WB series of CT 43B402 alternating current sampler of dimension, and no-load voltage ratio is 2000: 1.Adopt special isolation module, convert together tested alternating current to the little ac current signal of homophase frequently.The N line of 220V is passed instrument transformer according to the input signal direction on the current transformer Product labelling, to guarantee output signal and measured signal homophase.Be output as current source output, should in output loop, seal in sampling resistor during use.Because the present invention measures the alternating current of maximum 10A, can be regarded as to such an extent that be output as the 5mA electric current according to no-load voltage ratio, the voltage range that requires according to the electric energy meter chip CS5463 that connects later is 150mV, and resistance is decided to be 30 Ω.
Stream/pressure translation circuit is received the input end of analog signal of CS5463 with the form of differential mode voltage after with the measured signal conversion.Because the influence of instrument transformer angular difference may cause the phase shift of input signal, the error of power measurement is increased, and CS5463 have the phase compensation function, can reduce the influence of instrument transformer angular difference greatly.
As Fig. 4, wireless microcontroller module adopts the JN5139 wireless control module of JNENIC company.This module is low-power consumption, the low-cost wireless microcontroller of a IEEE of being compatible with 802.15.4.Built-in a 32 risc processor of this module disposes wireless transceiver, the ROM of 64KB, the RAM of 96KB of the IEEE 802.15.4 standard of 2.4GHz frequency range.The JN5139 module has a SPI serial ports, as main device, can be with 4 from device.
In this serial communication, the JN5139 module is as the primary module of serial ports, and CS5463 is as secondary module.After electric energy meter chip CS5463 measures electrical quantitys such as voltage effective value, current effective value, active power, electric energy, transfer to the JN5139 wireless control module, carry out data processing by JN5139 by the SPI serial line interface.The serial line interface of CS5463 has used the external mode of 2 control line/CS, SCLK and 2 data wire SDI, SDO./ CS is that sheet selects control line, and low level is effective; If CS is directly linked to each other with logical zero, then as long as three root interface lines just can be finished the operation of serial communication.SDI is the serial data incoming line; SDO is the serial data output line; SCLK is a serial clock, and it is synchronous to be used to control between CS5463 and the microcontroller JN5139 transfer of data.
Each data read/write operation all will write one 8 command byte, 8 SCLK clock cycle of this action need to the SDI pin.When writing " register read/write " when order, serial ports can read in data or in 8,16,24 SCLK week after dates dateout from the SDO from SDI through 24 SCLK cycles.
As Fig. 5, the RS232 communication chip adopts ADM3312E, and signal input and output pin T1IN, the R1OUT of RS232 communication chip is connected with TXD, the RXD of microcontroller JN5139 module, and T2IN, R2OUT are connected with RTS, the CTS of microcontroller.Microcontroller JN5139 sends the computer user to by the ADM3312E chip after the data that obtain are carried out computational analysis.
As Fig. 6, the present invention adopts the outside connected switch power supply with the alternating current 220V voltage transitions to be+the 5V direct voltage, supplies with the CS5463 chip.Because JN5139 module and ADM3312E are operated in+3.3V voltage, therefore use power conversion chip AMS1117 (5-3.3) to carry out level conversion acquisition+3.3V voltage.
As Fig. 7, electromagnetic relay control peripheral circuit.The model of this relay is HH53P-3Z-6VDC, adopts 3 groups of transfer contact designs.Support the break-make control of 240VAC/28VDC loop.P0, P1, P2 are for inputing or outputing port, and wherein, P0 is the relay control signal end, implement control by high-low level.P1 and P2 are the control ends of relay, and exportable 0V is to the voltage of 5V.When control end is high level 3V, the emitter junction conducting of Q1, collector electrode saturation conduction so and since under the saturation conduction between CE voltage drop very little, so the voltage drop between P1, P2 will press the specification of relay near 5V, relay this moment closure safely; When control end was low level 0V, the emitter junction of Q1 ended, and had only small penetrating current so between CE, and voltage drop is minimum between P1, P2 at this moment, will be well below the disconnection critical voltage of relay regulation, and relay disconnects safety so.Coil in the relay will produce very big self induction electromotive force in the moment of both end voltage sudden change, thereby produce very big electric current at collector electrode, very easily Q1 is burnt out, thereby at P1, P2 two ends diode in parallel, make it to form the closed-loop path, avoid high electric current to pass through from the collector electrode of Q1 with coil.
Claims (6)
1. the fine granularity electric weight based on the Zigbee technology is monitored the intelligent wireless socket, be connected in 220 volts of electric power systems, constitute by monitoring part, wireless microcontroller module, power module and relay control module, it is characterized in that the monitoring part is made up of current transformer, voltage transformer, stream/pressure translation circuit, electronic electric energy meter special chip; Wireless microcontroller module is made up of wireless microcontroller, RS232 communication chip; Power module is made up of power conversion chip; Control section then is to be realized by electromagnetic relay; Voltage sample and current sample result are converted to the signal of electronic electric energy meter special chip acceptance by stream/pressure translation circuit and input to the input end of analog signal of electronic electric energy meter special chip, the various electrical quantitys that the electronic electric energy meter special chip is calculated electric energy and comprised active power, reactive power, power factor by the electric energy computing function of inside in view of the above, and deposit in the corresponding registers by type; Wireless microcontroller module links to each other with the electronic electric energy meter special chip by bi-directional serial interface, reads the various electrical quantity data of measurement, and the radio communication circuit by inside will measure the result and transmit to control centre.
2. a kind of fine granularity electric weight monitoring intelligent wireless socket according to claim 1 based on the Zigbee technology, it is characterized in that, described current transformer is the alternating current sampler, adopt special isolation module, convert together tested alternating current to the little ac current signal of homophase frequently, the N line of 220V is passed instrument transformer according to the input signal direction on the current transformer Product labelling, to guarantee output signal and measured signal homophase.
3. a kind of fine granularity electric weight monitoring intelligent wireless socket according to claim 1 based on the Zigbee technology, it is characterized in that, described voltage transformer is the alternating voltage sampler, adopt special isolation module, tested alternating voltage is isolated the little ac current signal that converts to the frequency homophase, the N line of 220V is connected with V-with V+ respectively according to the mark on the voltage transformer Product labelling with the L line, to guarantee output signal and input signal homophase.
4. a kind of fine granularity electric weight monitoring intelligent wireless socket according to claim 1 based on the Zigbee technology, it is characterized in that described stream/pressure translation circuit is that current transformer, measured electric current, the voltage signal of voltage transformer are converted to little electric current, voltage signal in the electronic electric energy meter chip analog input end claimed range.
5. a kind of fine granularity electric weight monitoring intelligent wireless socket based on the Zigbee technology according to claim 1 is characterized in that, described electronic electric energy meter special chip be a kind of can monitoring current, the special chip of electrical quantitys such as voltage, power, electric weight.
6. a kind of fine granularity electric weight monitoring intelligent wireless socket based on the Zigbee technology according to claim 1 is characterized in that described wireless microcontroller is a kind of low-power consumption Zigbee radio communication micro treatment module.Realize Zigbee communication protocol, can carry out transfer of data with other Zigbee equipment networks.
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| CN102280779A (en) * | 2011-06-01 | 2011-12-14 | 安徽南瑞继远软件有限公司 | Intelligent power supply socket |
| CN102570199A (en) * | 2012-01-19 | 2012-07-11 | 东北大学 | Intelligent power utilization socket |
| CN103092158A (en) * | 2012-12-31 | 2013-05-08 | 深圳先进技术研究院 | Large building energy consumption real-time monitoring system based on wireless sensor network |
| CN103151655A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学 | Extension socket with power parameter monitoring function |
| CN103869774A (en) * | 2014-03-04 | 2014-06-18 | 上海交通大学 | Terminal node of intelligent housing system and intelligent housing system |
| CN105223830A (en) * | 2015-11-05 | 2016-01-06 | 李有绪 | Intelligence wall jack/switch |
| CN105675973A (en) * | 2016-01-15 | 2016-06-15 | 上海交通大学 | Wireless intelligent extension socket |
| CN106451780A (en) * | 2016-10-27 | 2017-02-22 | 中国航天空气动力技术研究院 | Intelligent miniature circuit breaker based on Zigbee wireless communication |
| CN106816775A (en) * | 2017-02-28 | 2017-06-09 | 北京北信源软件股份有限公司 | A kind of smart jack of carried charge monitoring function, electricity monitoring system and method |
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| CN107534292A (en) * | 2015-03-17 | 2018-01-02 | 豪倍公司 | Intelligent termination |
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| CN102280779A (en) * | 2011-06-01 | 2011-12-14 | 安徽南瑞继远软件有限公司 | Intelligent power supply socket |
| CN102570199A (en) * | 2012-01-19 | 2012-07-11 | 东北大学 | Intelligent power utilization socket |
| CN103092158A (en) * | 2012-12-31 | 2013-05-08 | 深圳先进技术研究院 | Large building energy consumption real-time monitoring system based on wireless sensor network |
| CN103151655A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学 | Extension socket with power parameter monitoring function |
| CN103869774A (en) * | 2014-03-04 | 2014-06-18 | 上海交通大学 | Terminal node of intelligent housing system and intelligent housing system |
| CN107534292A (en) * | 2015-03-17 | 2018-01-02 | 豪倍公司 | Intelligent termination |
| CN105223830A (en) * | 2015-11-05 | 2016-01-06 | 李有绪 | Intelligence wall jack/switch |
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| CN105675973B (en) * | 2016-01-15 | 2019-01-11 | 上海交通大学 | Intelligent wireless insert row |
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| CN106451780A (en) * | 2016-10-27 | 2017-02-22 | 中国航天空气动力技术研究院 | Intelligent miniature circuit breaker based on Zigbee wireless communication |
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Application publication date: 20110525 |