CN2427854Y - Automatic copying electric meter and collecting device - Google Patents
Automatic copying electric meter and collecting device Download PDFInfo
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- CN2427854Y CN2427854Y CN 00238341 CN00238341U CN2427854Y CN 2427854 Y CN2427854 Y CN 2427854Y CN 00238341 CN00238341 CN 00238341 CN 00238341 U CN00238341 U CN 00238341U CN 2427854 Y CN2427854 Y CN 2427854Y
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Abstract
The utility model relates to an automatic copying electric meter and collecting device which utilizes electric energy meter signal of low-voltage power line transmission. The utility model is composed of a power supply circuit, a voltage stabilization circuit, a power failure data storage control circuit, an electric meter pulse collection circuit, a data infrared receiving and emitting circuit, a carrier signal amplifying and pushing circuit, and a data processing circuit. The utility model has the advantages of high precision, remote transmission in a long distance, automatic power failure data storage, no interference, low cost, etc.
Description
The utility model relates to the device of low-voltage power line extension frequency carrier electric energy transmitting table information.
Present existing electric energy meter reading technique is broadly divided into communication, wire laying mode, telephone wire mode, magnetic card or IC-card formula.Radio frequency is seriously disturbed in the meeting that aforesaid way has, and the meeting that has interference user phone has plenty of transient mode, all exists shortcomings such as uneconomical simultaneously.In fact, between each family and concentrator, set up a communication system,, set up a communication system and be expensive with unpractical because the user area has complicated topography profile.
The purpose of this utility model is to provide a kind of automatic data logging harvester that utilizes low-voltage power line extension frequency carrier electric energy transmitting table.
The purpose of this utility model realizes that key is: a kind of electric energy meter automatic data logging harvester is characterized in that: be connected to voltage stabilizing diode, filtering and storage capacitor, the control of power failure data storage sample circuit, mu balanced circuit and reset circuit respectively at the bridge rectifier circuit output terminal; The foregoing circuit other end is respectively earth terminal, the output terminal of the data storage that wherein has a power failure control sample circuit links to each other with the 6th pin of μ PLC-600 chip, circuit output end of pressure-stabilizing is+the 5V supply voltage that the reset circuit output terminal all is connected with reset terminal 4 pin of μ PLC-600 chip; This device also comprises an ammeter pulse acquisition circuit and Data Infrared receiving circuit, and described infrared receiving circuit links to each other with the 11st pin of μ PLC-600 chip, in the described chip of input after the infrared signal demodulation of the ammeter pulse acquisition circuit that receives; Described μ PLC-600 chip the 10th pin is connected to a data infrared emission circuit, another termination storage capacitor of this radiating circuit+the 39V end; 7th, 8 pin also are connected to E
2The PROM chip when voltage signal of described μ PLC-600 chip the 6th pin descends, writes E with the collecting unit current data
2In the PROM chip; Described μ PLC-600 chip the 12nd pin amplifies promotion with a carrier signal and the signal coupling circuit input end is connected, and this amplification coupling circuit output terminal is connected with the AC network end.
Described ammeter pulse acquisition circuit is divided into two kinds of electromechanical and electronic electricity meters; Described electromechanical ammeter electricity arteries and veins Acquisition Circuit is the two-way signal acquisition structure.
Extension frequency carrier signal amplification promotion and signal coupling circuit are by an amplifying triode, its collector and the transient voltage that connects suppress diode, the resistance that transformer T1 primary coil, T2 level of transformer are connected in series, appearance series connection oscillatory circuit and a transient voltage that is connected to series connection oscillatory circuit two ends suppress the diode composition, wherein the amplifying triode base stage is a signal input part, and T1 level of transformer and series connection oscillatory circuit constitute output terminal jointly.
The utlity model has following effect:
1. the data acquisition of this circuit can be by adding a thin catch in the rotating shaft of electromechanical ammeter, and the light of cutting infrared switch was finished when ammeter rotated, and had avoided adopting the infrared external reflection mode to be subject to extraneous light and had disturbed the phenomenon that produces error;
2. adopt two acquisition modes to differentiate the ammeter rotation direction;
3. finish data processing, modulation, reflection etc. by integrated circuit;
4. have power cut detection circuit, CPU receives voltage low signal when having a power failure, and the electric energy that utilizes electric capacity to store, and with the signal data write memory, has avoided long-term use to repeat to write the life problems of bringing;
5. infrared data reads as independent output, has solved the problem that interferes with each other that like product is mostly together exported with SX;
6. product adopts optimized design, makes production cost descend significantly, realizes the purpose that robotization is checked meter fully.
The drawing explanation:
Fig. 1 is the electromechanical meter circuit structural drawing of electric energy meter automatic data logging harvester described in the utility model.
Fig. 2 is the electronic electricity meter circuit structure diagram of the harvester of checking meter described in the utility model.
Below principle of work of the present utility model and circuit are constituted that details are as follows:
1. power circuit
The 220VAC alternating current is through after the electric capacity HVC1 step-down and behind D1, D2, D3, the D4 bridge rectifier, the 39V direct supply that circuit is provided by R16, voltage stabilizing diode V1 and filter capacitor EC1.This power supply provides input and power to promote power supply for the mu balanced circuit of the back utmost point.Simultaneously, utilize the stored charge discharge of EC1, when having a power failure for exchanging, system provides power supply for U1 writes EEPROM.
2. mu balanced circuit
By resistance R 10, stabilivolt ZD3, and triode Q2 form, for integrated circuit provides 5V stable voltage.
3. reset circuit
Be made up of ZD2, Q1, R4, R5, R6, in system power-up, power supply is slowly gone up when giving birth to, and reset signal is provided.Working properly to guarantee U1.
4. power failure data storage control circuit
Form by ZD1, R7, R14, when exchanging power failure, EC1 is begun to fall by 39V, when being lower than 27 volts, the R9 level after output 5V, the U1 of Q3 detect the variation of the 6th pin level at this moment, writes EEPROM with the collecting unit current data by high step-down, like this, avoid that EEPROM's repeat the life problems that writes throughout the year.
5. ammeter pulse acquisition circuit.
Form the two-way signals collecting by resistance R 8, R9, R11 and optoelectronic switch U3, U4, when ammeter rotates, provide the light signal generating pulse of the cutting of lightweight catch U3, the U4 that are fixed in the rotating shaft.That U1 judges the ammeter number of degrees by the number of times precedence of differentiating U3, U4 output signal and rotation direction.The ammeter pulse acquisition circuit of electronic electricity meter is made up of U3, R9, R15, sees Fig. 2.
6. Data Infrared receiving circuit
Be made up of IR1, R3, infrared signal outputs to U1 after being received by IR1 after the demodulation.
7. Data Infrared radiating circuit
Form by R17, R12, Q4 and D7, D8.The 10 pin output of U1 is amplified the back by Q3 and is launched by D7, D8.
8. the extension frequency carrier signal amplifies the promotion circuit
Form by C3, D1, R1, Q3, T1, C7, D4, R13, TVS2.
9. signal coupling circuit
Form by T1, TVS2, L2, HVC2.L2, HVC2 form resonant circuit, and the diode of transient voltage inhibition simultaneously TVS1 protects this circuit not damaged by the surge current interference.
10. data processing circuit
Form by integrated circuit U1, EERPOMU2, crystal Y1, C1, C2.After U1 is responsible for the accumulative total of ammeter pulse and it is converted into electric degree number, band spectrum modulation, send to line of electric force with the time that can set.U1 finishes that infrared data receives and sends, and simultaneously, U1 is responsible for the alternating current status detection, during power failure with database storing in U2.Y1, C7, C8 provide clock for U1.
Claims (3)
1. an electric energy meter automatic data logging harvester is characterized in that: be connected to voltage stabilizing diode, filtering and storage capacitor, the control of power failure data storage sample circuit, mu balanced circuit and reset circuit respectively at the bridge rectifier circuit output terminal; The foregoing circuit other end is respectively earth terminal, the output terminal of the data storage that wherein has a power failure control sample circuit links to each other with the 6th pin of μ PLC-600 chip, circuit output end of pressure-stabilizing is+the 5V supply voltage that the reset circuit output terminal all is connected with reset terminal 4 pin of μ PLC-600 chip; This device also comprises an ammeter pulse acquisition circuit and Data Infrared receiving circuit, and described infrared receiving circuit links to each other with the 11st pin of μ PLC-600 chip, in the described chip of input after the infrared signal demodulation of the ammeter pulse acquisition circuit that receives; Described μ PLC-600 chip the 10th pin is connected to a data infrared emission circuit, another termination storage capacitor of this radiating circuit+the 39V end; 7th, 8 pin also are connected to E
2The PROM chip when voltage signal of described μ PLC-600 chip the 6th pin descends, writes E with the collecting unit current data
2In the PROM chip; Described μ PLC-600 chip the 12nd pin amplifies promotion with a carrier signal and the signal coupling circuit input end is connected, and this amplification coupling circuit output terminal is connected with the AC network end.
2. a kind of electric energy meter automatic data logging harvester as claimed in claim 1 is characterized in that: described ammeter pulse acquisition circuit is divided into two kinds of electromechanical and electronic electricity meters; Described electromechanical ammeter electricity arteries and veins Acquisition Circuit is the two-way signal acquisition structure.
3. a kind of electric energy meter automatic data logging harvester as claimed in claim 1, it is characterized in that: carrier signal amplification promotion and signal coupling circuit are by an amplifying triode, its collector and the transient voltage that connects suppress diode, the resistance that transformer T1 primary coil, T2 level of transformer are connected in series, appearance series connection oscillatory circuit and a transient voltage that is connected to series connection oscillatory circuit two ends suppress the diode composition, wherein the amplifying triode base stage is a signal input part, and T1 level of transformer and series connection oscillatory circuit constitute output terminal jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238341 CN2427854Y (en) | 2000-07-03 | 2000-07-03 | Automatic copying electric meter and collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238341 CN2427854Y (en) | 2000-07-03 | 2000-07-03 | Automatic copying electric meter and collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427854Y true CN2427854Y (en) | 2001-04-25 |
Family
ID=33599413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00238341 Expired - Fee Related CN2427854Y (en) | 2000-07-03 | 2000-07-03 | Automatic copying electric meter and collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427854Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133994A (en) * | 2011-03-11 | 2011-07-27 | 浙江省电力公司 | Grounding device of electric energy meter tooling plate |
| CN101900759B (en) * | 2009-05-31 | 2012-05-02 | 上海金陵智能电表有限公司 | Data recording and power saving device for electric energy meter |
| CN103323665A (en) * | 2012-03-19 | 2013-09-25 | 上海利思电气有限公司 | Electric energy monitoring front end data acquisition device |
| CN104809863A (en) * | 2015-03-30 | 2015-07-29 | 广东美的暖通设备有限公司 | RS485 based pulse ammeter communication conversion device and method |
| CN106597090A (en) * | 2017-01-23 | 2017-04-26 | 江苏中乂电气有限公司 | Electric energy data collection system based on wireless network transmission and working method thereof |
| CN107797088A (en) * | 2017-11-06 | 2018-03-13 | 广东省计量科学研究院（华南国家计量测试中心） | Collect the rechargeable type photoelectric trigger device of wideband filtering and infrared receiver function |
-
2000
- 2000-07-03 CN CN 00238341 patent/CN2427854Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900759B (en) * | 2009-05-31 | 2012-05-02 | 上海金陵智能电表有限公司 | Data recording and power saving device for electric energy meter |
| CN102133994A (en) * | 2011-03-11 | 2011-07-27 | 浙江省电力公司 | Grounding device of electric energy meter tooling plate |
| CN103323665A (en) * | 2012-03-19 | 2013-09-25 | 上海利思电气有限公司 | Electric energy monitoring front end data acquisition device |
| CN103323665B (en) * | 2012-03-19 | 2016-05-11 | 利思电气（上海）有限公司 | A kind of energy monitor front-end data acquisition device |
| CN104809863A (en) * | 2015-03-30 | 2015-07-29 | 广东美的暖通设备有限公司 | RS485 based pulse ammeter communication conversion device and method |
| CN106597090A (en) * | 2017-01-23 | 2017-04-26 | 江苏中乂电气有限公司 | Electric energy data collection system based on wireless network transmission and working method thereof |
| CN107797088A (en) * | 2017-11-06 | 2018-03-13 | 广东省计量科学研究院（华南国家计量测试中心） | Collect the rechargeable type photoelectric trigger device of wideband filtering and infrared receiver function |
| CN107797088B (en) * | 2017-11-06 | 2023-12-12 | 广东省计量科学研究院（华南国家计量测试中心） | Chargeable photoelectric trigger device integrating broadband filtering and infrared receiving functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |