CN203101504U - Single-phase intelligent electric energy meter - Google Patents
Single-phase intelligent electric energy meter Download PDFInfo
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- CN203101504U CN203101504U CN 201320066077 CN201320066077U CN203101504U CN 203101504 U CN203101504 U CN 203101504U CN 201320066077 CN201320066077 CN 201320066077 CN 201320066077 U CN201320066077 U CN 201320066077U CN 203101504 U CN203101504 U CN 203101504U
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Abstract
The utility model discloses a single-phase intelligent electric energy meter which comprises a measuring chip with a one-way input end, an MCU (Microprogrammed Control Unit) module connected with the measuring chip, a communication module, an internal storage and a battery module, wherein the communication module, the internal storage and the battery module are connected with the MCU module, the one-way input end of the measuring chip is respectively connected with a voltage dividing circuit, a resistance dividing circuit and a current mutual inductance circuit, the voltage dividing circuit and the resistance dividing circuit are connected with a live wire, and the current mutual inductance circuit is connected with a zero wire. Because the voltage dividing circuit, the resistance dividing circuit and the current mutual inductance circuit which are connected with the measuring chip are arranged, the single-phase intelligent electric energy meter is capable of realizing electric energy live wire measurement and zero wire measurement (electricity larceny prevention); and because the communication module and the internal storage which are connected with the MCU module are arranged, the single-phase intelligent electric energy meter realizes multiple functions including electric energy data recording, remote communication and the like, is small in volume and convenient to operate, and provides strong protection capacity for electric energy measurement.
Description
Technical field
The utility model relates to a kind of electric energy meter, in particular, and particularly a kind of single-phase intelligent ammeter.
Background technology
At present, may exist circuit to insert mistake in the single-phase electric energy meter installation process, perhaps the hidden danger of user's malice stealing is brought loss to Utilities Electric Co..Electric company this moment electric energy meter has just been proposed new requirement, do not possessed the zero line metering, will electric energy meter be installed and economic aspect all brings a lot of troubles to electric company as table.
Therefore, how to design a kind of single-phase intelligent electric energy meter novel, that possess anti-stealing electricity function, make it can possess functions such as live wire metering, zero line metering, energy data record, telecommunication, expense control, thereby make existing electrical energy meter anti-theft electricity ability stronger, the needs that adapt to modern power supply process more become the technical barrier that those skilled in the art need solve.
The utility model content
The purpose of this utility model is to provide a kind of single-phase intelligent ammeter at the technical matters that does not have anti-stealing electricity function in the prior art.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of single-phase intelligent ammeter, comprise the computation chip with unidirectional input end, the MCU module that is connected with computation chip and the communication module that is connected with the MCU module, internal storage and battery module, the unidirectional input end of described computation chip connects voltage branch circuit, shunt resistance circuit and electric current mutual inductance circuit respectively, and described voltage branch circuit is connected with live wire with the shunt resistance circuit, and described electric current mutual inductance circuit is connected with zero line.
Further, described voltage branch circuit is a resistance series connection bleeder circuit; Described shunt resistance circuit is a divertor; Described electric current mutual inductance circuit comprises current transformer, and the resistance that is series at described current transformer two ends.
Further, described computation chip adopts the ATT7053BU chip that possesses the zero line function of measuring.
Further, described communication module comprises wireless communication module and wire communication module.
Further, described wireless communication module comprises micropower wave point, infrared communication interface; Described wire communication module comprises RS485 interface, power line carrier wired communication interface.
Further, also comprise the expense control encrypting module that is connected with described MCU module, and described expense control encrypting module comprises the expense control CPU card of being located on the MCU module, and be installed on the expense control encryption chip in the described expense control CPU card.
Further, also comprise the human-computer interaction module that is connected with described MCU module, and described human-computer interaction module comprises LED light, button and LCD display device.
Further, described battery module also is integrated with clock module.
Compared with prior art, the beneficial effects of the utility model are: owing to be provided with voltage branch circuit, shunt resistance circuit and the electric current mutual inductance circuit that is connected with computation chip, it can realize the metering of electric energy live wire, zero line metering (anti-electricity-theft); And be provided with communication module and the internal register that is connected with the MCU module, and realized that energy data record, telecommunication etc. are all multi-functional, and whole ammeter volume is little, easy to operate, for electric energy metrical provides powerful protective capacities.
Description of drawings
Fig. 1. be the framework synoptic diagram of single-phase intelligent ammeter of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, the utility model provides a kind of single-phase intelligent ammeter, comprise the computation chip with unidirectional input end, the MCU module that is connected with computation chip and the communication module that is connected with the MCU module, internal storage and battery module, wherein: the unidirectional input end of computation chip connects voltage branch circuit, shunt resistance circuit and electric current mutual inductance circuit respectively; And voltage branch circuit is connected with live wire with the shunt resistance circuit, and the electric current mutual inductance circuit is connected with zero line; And computation chip adopts the ATT7053BU chip that possesses the zero line function of measuring.
In the present embodiment, voltage branch circuit is a resistance series connection bleeder circuit, connects live wire, can directly obtain the small voltage signal from divider resistance, sends in the computation chip; The shunt resistance circuit is a divertor, connects live wire, can directly obtain the small voltage signal from divertor, sends in the computation chip; The electric current mutual inductance circuit comprises current transformer, and the resistance that is series at current transformer two ends, connects zero line, can obtain the small voltage signal from sampling resistor, sends in the computation chip.Computation chip obtains voltage, the current sampling signal (U, IL, IN) of live wire, zero line respectively from voltage branch circuit, shunt resistance circuit and electric current mutual inductance circuit, and the electric energy of electrical network consumption measured, simultaneously continuous data is stored in the data-carrier store of self, waits for reading of MCU module.Internal storage is used for the metering and the measurement data of this single-phase intelligent ammeter operation are stored.Human-computer interaction module is used for the ruuning situation of this single-phase intelligent ammeter is shown to the user that such as showing energy data, information indicating etc., it can be LED light, button and LCD display device etc.Communication module is the functional module that this single-phase intelligent ammeter is realized telecommunication, comprising wire communication module (as RS485 interface, power line carrier wired communication interface etc.), and wireless communication module (as micropower wave point, infrared communication interface etc.), the parameter in this electric energy meter is provided with the drawing lock of control ammeter by telecommunication; Can also adopt by carrier wave can in the ammeter parameter copy reading with data is set.And in order to realize the monitoring function of expense, present embodiment can also comprise the expense control encrypting module that is connected with the MCU module, and expense control encrypting module comprises the expense control CPU card of being located on the MCU module, and is installed on the interior expense control encryption chip of expense control CPU card.MCU module wherein is as the core of this single-phase intelligent ammeter, be used for the control of all functions and the distribution and the storage of data, after computation chip obtains sampled data, the MCU module directly obtains electric energy data and measurement data from computation chip, be used for that the user deducts fees and the storage of continuous data and demonstration.For various communication request also is to be dealt with by the MCU module, and makes correct corresponding.
The principle of the single-phase intelligent ammeter of present embodiment is: by to voltage, live wire electric current, neutral line current through voltage branch circuit, shunt resistance circuit and electric current mutual inductance circuit take a sample and respective handling after enter computation chip, the MCU module is taken out continuous data and is stored in the data-carrier store and in the LCD display device and shows that the user can check electricity consumption data etc. by button from computation chip.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (8)
1. single-phase intelligent ammeter, it is characterized in that: comprise the computation chip with unidirectional input end, the MCU module that is connected with computation chip and the communication module that is connected with the MCU module, internal storage and battery module, the unidirectional input end of described computation chip connects voltage branch circuit, shunt resistance circuit and electric current mutual inductance circuit respectively, and described voltage branch circuit is connected with live wire with the shunt resistance circuit, and described electric current mutual inductance circuit is connected with zero line.
2. single-phase intelligent ammeter according to claim 1 is characterized in that: described voltage branch circuit is a resistance series connection bleeder circuit; Described shunt resistance circuit is a divertor; Described electric current mutual inductance circuit comprises current transformer, and the resistance that is series at described current transformer two ends.
3. single-phase intelligent ammeter according to claim 1 is characterized in that: described computation chip adopts the ATT7053BU chip that possesses the zero line function of measuring.
4. according to claim 1 or 2 or 3 described single-phase intelligent ammeters, it is characterized in that: described communication module comprises wireless communication module and wire communication module.
5. single-phase intelligent ammeter according to claim 4 is characterized in that: described wireless communication module comprises micropower wave point, infrared communication interface; Described wire communication module comprises RS485 interface, power line carrier wired communication interface.
6. single-phase intelligent ammeter according to claim 5, it is characterized in that: also comprise the expense control encrypting module that is connected with described MCU module, and described expense control encrypting module comprises the expense control CPU card of being located on the MCU module, and is installed on the expense control encryption chip in the described expense control CPU card.
7. according to claim 1-3 or 6 each described single-phase intelligent ammeters, it is characterized in that: also comprise the human-computer interaction module that is connected with described MCU module, and described human-computer interaction module comprises LED light, button and LCD display device.
8. according to claim 1-3 or 6 each described single-phase intelligent ammeters, it is characterized in that: described battery module also is integrated with clock module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066077 CN203101504U (en) | 2013-02-05 | 2013-02-05 | Single-phase intelligent electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066077 CN203101504U (en) | 2013-02-05 | 2013-02-05 | Single-phase intelligent electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101504U true CN203101504U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066077 Expired - Fee Related CN203101504U (en) | 2013-02-05 | 2013-02-05 | Single-phase intelligent electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291090A (en) * | 2016-07-31 | 2017-01-04 | 孙文兵 | A kind of intelligent wireless ammeter |
| CN106952411A (en) * | 2016-12-13 | 2017-07-14 | 浙江恒业电子有限公司 | A kind of single-phase charge-controlled intelligent electric meter |
-
2013
- 2013-02-05 CN CN 201320066077 patent/CN203101504U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291090A (en) * | 2016-07-31 | 2017-01-04 | 孙文兵 | A kind of intelligent wireless ammeter |
| CN106952411A (en) * | 2016-12-13 | 2017-07-14 | 浙江恒业电子有限公司 | A kind of single-phase charge-controlled intelligent electric meter |
| CN106952411B (en) * | 2016-12-13 | 2022-11-11 | 浙江恒业电子有限公司 | Single-phase cost control intelligent electric energy meter |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |