CN104535832A - Intelligent household appliance electric energy metering device and intelligent household appliance - Google Patents
Intelligent household appliance electric energy metering device and intelligent household appliance Download PDFInfo
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- CN104535832A CN104535832A CN201510024850.XA CN201510024850A CN104535832A CN 104535832 A CN104535832 A CN 104535832A CN 201510024850 A CN201510024850 A CN 201510024850A CN 104535832 A CN104535832 A CN 104535832A
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Abstract
The invention discloses an intelligent household appliance electric energy metering device and an intelligent household appliance. The intelligent household appliance electric energy metering device comprises an information acquiring and calculating unit, a processor and a storage unit, wherein the information acquiring and calculating unit is used for receiving information output by the processor, calculating the electric quantity and power of the intelligent household appliance according to the energy use information of the intelligent household appliance and storing the calculated electric quantity and power in the storage unit. The information needing to be described is that the processor of the metering device disclosed by the invention has data interaction with a controller of the intelligent appliance by an optically-coupled isolating interface, a command output by the controller of the household appliance can be received, and a corresponding signal is fed back, so that acquisition, calculation and storage of the energy use information of the intelligent household appliance can be finished.
Description
Technical field
The application relates to electric energy metrical field, more particularly, relates to a kind of intelligent appliance electric power meter and intelligent appliance.
Background technology
Along with the arrival in Internet of Things epoch, Smart Home industry also welcomes unprecedented opportunity to develop.Numerous internet manufacturer, household appliances manufacturer join Smart Home industry as surging forward, and the numerous and confused intelligent appliance released category and enrich, seizes the more Smart Home market share.
In order to realize more comfortableization of household electrical appliances intellectuality and Consumer's Experience, intelligent appliance hardware inside will certainly increase a lot of sensor, such as electric energy metrical unit, temperature and humidity sensing, light sensor, infrared sensing, noise sensing, gas sensing etc.
At present for the entirety metering that residential electricity consumption is in units of family, can not root by certain concrete for power information refinement household electrical appliances.
Summary of the invention
In view of this, the application provides a kind of intelligent appliance electric power meter and intelligent appliance, stores to carry out collection according to the requirement of intelligent appliance to the power information of household electrical appliances self.
To achieve these goals, the existing scheme proposed is as follows:
A kind of intelligent appliance electric power meter, comprising:
Gather the power information of intelligent appliance, and the information acquisition computing unit of the power of computational intelligence household electrical appliances and electricity;
Be connected with described information acquisition computing unit, be configured and the processor processed power information to described information acquisition computing unit, described processor is connected with the control chip of intelligent appliance by light-coupled isolation interface;
The storage unit be connected with described processor, for storing power in intelligent appliance a period of time and electricity.
Preferably, described information acquisition computing unit comprises:
Gather the divided voltage Acquisition Circuit of intelligent appliance voltage;
Gather the current collection circuit of intelligent appliance electric current;
And be connected with described current collection circuit with described divided voltage Acquisition Circuit, according to the power of voltage and current computational intelligence household electrical appliances and the computation chip of electricity of intelligent appliance.
Preferably, also comprise: the detection of power loss be connected with described processor.
Preferred: the power conversion unit be connected with described information acquisition with described processor.
Preferably, described power conversion unit comprises:
220VAV ~ 5VDC power circuit, for being converted to the direct current of 5V by the alternating current of 220V;
5VDC ~ 3VDC the power circuit be connected with described 220VAV ~ 5VDC power circuit, for being converted to the direct current of 3V by the direct current of 5V.
Preferably, described 220VAV ~ 5VDC power circuit adopts NCP1015 non-isolated circuit.
Preferably, described light-coupled isolation interface is SPI interface or UART interface.
Preferably, described computation chip is CS5463 chip.
Preferably, described processor is MSP430G2513 processor.
A kind of intelligent appliance, comprises the electric power meter described in above content.
Through as shown from the above technical solution, this application discloses a kind of intelligent appliance measuring apparatus and intelligent appliance.This intelligent appliance measuring apparatus comprises: information acquisition computing unit, processor and storage unit.The information that information acquisition computing unit receiving processor exports, and according to the electricity of the power information computational intelligence household electrical appliances of intelligent appliance and power, and store in the memory unit, it should be noted that, to be undertaken in data by the controller of light-coupled isolation interface and intelligent appliance mutual for the processor of this measuring apparatus in the present invention, the instruction that Intelligent Home Appliance Controller exports can be accepted, and feed back corresponding signal, thus complete the collection of the power information for intelligent appliance, calculating and storage.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 shows the structural representation of an embodiment of a kind of intelligent appliance electric power meter of the present invention;
Fig. 2 shows the circuit diagram of 220VAV ~ 5VDV power supply of a kind of intelligent appliance electric power meter of the present invention;
Fig. 3 shows the circuit diagram of 5VDV ~ 3VDV power supply of a kind of intelligent appliance electric power meter of the present invention;
Fig. 4 shows the structural representation of an amount embodiment of a kind of intelligent appliance electric power meter of the present invention;
Fig. 5 shows voltage, the current acquisition change-over circuit figure of a kind of intelligent appliance electric power meter of the present invention;
Fig. 6 shows computation chip and the peripheral circuit diagram thereof of a kind of intelligent appliance electric power meter of the present invention;
Fig. 7 shows the circuit diagram of the detection of power loss unit of a kind of intelligent appliance electric energy metrical of the present invention unit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The structural representation of an embodiment of a kind of intelligent appliance electric power meter of the present invention is shown see Fig. 1.
As shown in Figure 1, in the present embodiment, this intelligent appliance electric quantity metering device comprises:
Gather the power information of intelligent appliance, and according to the power of power information computational intelligence household electrical appliances and the information acquisition computing unit 1 of electricity;
Be connected with described information acquisition computing unit 1, information acquisition computing unit is configured, and to the processor 2 that power information processes, described processor is connected with the control chip of intelligent appliance by light-coupled isolation interface.Optionally, this light-coupled isolation interface is SPI interface or UART interface
The storage unit 3 be connected with described processor, for storing power in intelligent appliance a period of time and electricity.In an embodiment, this device is minimum minute to carry out calculating and storing for the unit power that is intelligent appliance and electricity.
It should be noted that, in the present embodiment, the power conversion unit of intelligent appliance comprises: 220VAV ~ 5VDV power supply 4 and 5VDV ~ 3VDV power supply 5.Fig. 2 shows the circuit diagram of 220VAV ~ 5VDV power supply of a kind of intelligent appliance electric power meter of the present invention, and Fig. 3 shows the circuit diagram of 5VDV ~ 3VDV power supply of a kind of intelligent appliance electric power meter of the present invention.
Above-mentioned two kinds of power supplys all adopt Switching Power Supply scheme, and relative to Industrial Frequency Transformer and traditional LDO scheme, have power consumption little, efficiency is high, and volume is little, lightweight advantage.
220VAC ~ 5VDC power circuit adopts NCP1015 non-isolated scheme, and circuit is simple, adopts tens electronic components can realize the ac-dc conversion that AC80 ~ 260V is input to DC5V.Owing to adopting advanced dynamic self-powered (DSS), the operating voltage of NCP1015 can directly be drawn from drain electrode, therefore eliminates ancillary coil, realizes simplifying circuit, decreases the volume shared by transformer, and reduce cost.The core devices of 5VDC ~ 3V3DC power supply adopts the DC/DC switching power source chip TPS5401 of TI company, and relative to the step-down LDO of routine, power supply conversion efficiency is improved.
This application discloses a kind of intelligent appliance measuring apparatus and intelligent appliance as known from the above.This intelligent appliance measuring apparatus comprises: information acquisition computing unit, processor and storage unit.The information that information acquisition computing unit receiving processor exports, and according to the electricity of the power information computational intelligence household electrical appliances of intelligent appliance and power, and store in the memory unit, it should be noted that, to be undertaken in data by the controller of light-coupled isolation interface and intelligent appliance mutual for the processor of this measuring apparatus in the present invention, the instruction that Intelligent Home Appliance Controller exports can be accepted, and feed back corresponding signal, thus complete the collection of the power information for intelligent appliance, calculating and storage.
Embodiment two
The structural representation of an amount embodiment of a kind of intelligent appliance electric power meter of the present invention is shown see Fig. 4.
The information acquisition computing unit computation chip 13 that comprises divided voltage Acquisition Circuit 11, current collection circuit 12 and build with voltage collection circuit and current collection circuit in the present embodiment.
See Fig. 5 shows the voltage of a kind of intelligent appliance electric power meter of the present invention, current acquisition change-over circuit figure, Fig. 6 show a kind of intelligent appliance electric power meter of the present invention computation chip and peripheral circuit diagram thereof.
This information acquisition computing unit uses the CS5463 computation chip of Cirrus Logic company to build.It is high that this chip has cost performance, and antijamming capability is strong, measuring accuracy advantages of higher.CS5463 can use the shunt of low cost or mutual inductor to measure electric current, uses divider resistance or voltage measuring transformer voltage.
Wherein, the measurement of voltage uses divider resistance to realize, and 220V high pressure is through electric resistance partial pressure, and the low-voltage alternating-current small-signal of millivolt level that what R9 both sides obtained is, sends into front end piezoelectric voltage acquisition channel VIN-and VIN+ of CS5463.
The measurement of electric current uses copper-manganese resistance to realize, and big current, through copper-manganese resistance R10, at the low pressure small-signal of the mV level that R10 resistance both sides obtain, sends into front end electricity current acquisition passage IIN-and IIN+ of CS5463.The voltage channel of computation chip CS5463 and current channel and peripheral circuit, send into computation chip inside by ac small signal.Two acquisition channels of this computation chip, all add protection diode, make the input signal of two passages within certain voltage range; Current acquisition passage also adds filter inductance and voltage dependent resistor (VDR), strengthens the antijamming capability of two passages and ensures the accuracy of data acquisition.
In addition in the present embodiment, this device also comprises the detection of power loss unit 6 be connected with processor.
The circuit diagram of the detection of power loss unit of a kind of intelligent appliance electric energy metrical of the present invention unit is shown see Fig. 7.
The effect of power-fail detection circuit is when 220V alternating current breaks suddenly, and provide a look-at-me to processor, processor carries out power down protection process according to this look-at-me.The effect of power down protection is stored in time the current power information of electrical equipment, and the power information preventing power down from causing is lost.
Detection of power loss front-end circuit is that 220V alternating current is converted to low pressure square-wave signal.This low pressure square-wave signal sends into TLC555ID timer, uses the power of this timer further square-wave signal can be converted to high level signal.When there being 220V alternating current, PD_INT is high level, and when not having 220V alternating current and power down, PD_INT becomes low level; Thus, when power down, PD_INT pin is by generation negative edge look-at-me to processor, and processor utilizes this look-at-me to carry out power down protection process.
It should be noted that, the processor of this device and the controller of intelligent appliance are being can arrange key, the data that transmit be encrypted, substantially increase the security of data communication by light-coupled isolation interface communication in the present embodiment.
Optionally, described computation chip is CS5463 chip in the present embodiment.Described processor is MSP430G2513 processor.
It should be noted that, the invention also discloses a kind of intelligent appliance measuring apparatus, in this intelligent appliance, be provided with above-mentioned electric power meter.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an intelligent appliance electric power meter, is characterized in that, comprising:
Gather the power information of intelligent appliance, and the information acquisition computing unit of the power of computational intelligence household electrical appliances and electricity;
Be connected with described information acquisition computing unit, be configured and the processor processed power information to described information acquisition computing unit, described processor is connected with the control chip of intelligent appliance by light-coupled isolation interface;
The storage unit be connected with described processor, for storing power in intelligent appliance a period of time and electricity.
2. measuring apparatus according to claim 1, is characterized in that, described information acquisition computing unit comprises:
Gather the divided voltage Acquisition Circuit of intelligent appliance voltage;
Gather the current collection circuit of intelligent appliance electric current;
And be connected with described current collection circuit with described divided voltage Acquisition Circuit, according to the power of voltage and current computational intelligence household electrical appliances and the computation chip of electricity of intelligent appliance.
3. device according to claim 1, is characterized in that, also comprises: the detection of power loss be connected with described processor.
4. device according to claim 1, is characterized in that, also comprises: the power conversion unit be connected with described information acquisition with described processor.
5. device according to claim 4, it is characterized in that, described power conversion unit comprises:
220VAV ~ 5VDC power circuit, for being converted to the direct current of 5V by the alternating current of 220V;
5VDC ~ 3VDC the power circuit be connected with described 220VAV ~ 5VDC power circuit, for being converted to the direct current of 3V by the direct current of 5V.
6. device according to claim 4, is characterized in that, described 220VAV ~ 5VDC power circuit adopts NCP1015 non-isolated circuit.
7. device according to claim 1, is characterized in that, described light-coupled isolation interface is SPI interface or UART interface.
8. device according to claim 2, is characterized in that, described computation chip is CS5463 chip.
9. device according to claim 1, is characterized in that, described processor is MSP430G2513 processor.
10. an intelligent appliance, is characterized in that, comprises the electric power meter described in claim 1 to claim 9 any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510024850.XA CN104535832A (en) | 2015-01-19 | 2015-01-19 | Intelligent household appliance electric energy metering device and intelligent household appliance |
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| CN201510024850.XA CN104535832A (en) | 2015-01-19 | 2015-01-19 | Intelligent household appliance electric energy metering device and intelligent household appliance |
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| CN104535832A true CN104535832A (en) | 2015-04-22 |
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| CN201510024850.XA Pending CN104535832A (en) | 2015-01-19 | 2015-01-19 | Intelligent household appliance electric energy metering device and intelligent household appliance |
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Cited By (4)
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| CN105549485A (en) * | 2015-12-16 | 2016-05-04 | 华南理工大学 | Household intelligent power utilization control terminal based on DSP |
| CN105675977B (en) * | 2016-03-02 | 2018-12-28 | 江苏林洋能源股份有限公司 | A kind of electric energy meter and method with front stage detection of power loss |
| CN113030544A (en) * | 2021-03-31 | 2021-06-25 | 浙江大元泵业股份有限公司 | Electric signal isolation detection method |
| CN113410098A (en) * | 2021-06-30 | 2021-09-17 | 中车株洲电力机车研究所有限公司 | Safe drive circuit of relay |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113410098A (en) * | 2021-06-30 | 2021-09-17 | 中车株洲电力机车研究所有限公司 | Safe drive circuit of relay |
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Application publication date: 20150422 |
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