CN105353209A - Intelligent ammeter control system based on digital strain circuit - Google Patents
Intelligent ammeter control system based on digital strain circuit Download PDFInfo
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- CN105353209A CN105353209A CN201510848962.7A CN201510848962A CN105353209A CN 105353209 A CN105353209 A CN 105353209A CN 201510848962 A CN201510848962 A CN 201510848962A CN 105353209 A CN105353209 A CN 105353209A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/606—Protecting data by securing the transmission between two devices or processes
Abstract
The invention discloses an intelligent ammeter control system based on a digital strain circuit. The intelligent ammeter control system mainly comprises a processor, an information acquisition unit, an analysis unit and a signal classification unit both of which are connected to the processor, a signal confirmation unit connected to the signal classification unit, a protection unit and a selection unit both of which are connected to the signal confirmation unit, a display unit connected to the selection unit, and a digital strain circuit connected between the information acquisition unit and the processor in series. The input end of the digital strain circuit is connected to the information acquisition unit, and the output end of the digital strain circuit is connected to the processor. The intelligent ammeter control system can analyzes different load data information passing across an ammeter, change the data information into different signal codes and output the signal codes in a classified manner, thereby effectively ensuring that private information of a client will not leak.
Description
Technical field
The present invention relates to electrical equipment technical field, specifically refer to a kind of intelligent electric meter control system based on digital strain circuit.
Background technology
At present, the development built along with China's intelligent grid, people are also increasing substantially to the demand of intelligent electric meter.But existing intelligent electric meter, because of the imperfection of its control system, easily cause the details of user to be revealed to Utilities Electric Co. inadvertently, and the leakage of these information may bring serious consequence to consumer.Therefore, provide a kind of and can guarantee that the privacy of user is not then seemed excellent in important by the control system of the intelligent electric meter revealed.
Summary of the invention
The object of the invention is to overcome intelligent electric meter of the prior art, because of the imperfection of its control system, easily reveal the defect of privacy of user, the invention provides a kind of intelligent electric meter control system based on digital strain circuit.
The present invention is achieved through the following technical solutions: a kind of intelligent electric meter control system based on digital strain circuit; primarily of processor; information acquisition unit; the analytic unit be all connected with processor and signal sort out unit; the signal confirmation unit that unit is connected is sorted out with signal; the protected location be all connected with signal confirmation unit and selection unit; the display unit be connected with selection unit, and between information acquisition unit and processor, be also serially connected with digital strain circuit composition.
Described digital strain circuit is by process chip U, amplifier P1, triode VT1, triode VT2, negative pole is connected with the base stage of triode VT2, positive pole is in turn through polar capacitor C5 that resistance R2 is connected with the VDD pin of process chip U after diode D1 and resistance R8, one end is connected with the base stage of triode VT2, the resistance R5 that the other end is connected with the EOC pin of process chip U, input end as digital strain circuit while one end is connected with the positive pole of polar capacitor C5 is connected with information acquisition circuit, the resistance R3 that the other end is connected with the REF pin of process chip U, minus earth, the polar capacitor C1 that positive pole is connected with the VDD pin of process chip U after resistance R4, N pole is connected with the emitter of triode VT2 after resistance R6, P pole is in turn through diode D3 that resistance R7 is connected with the OUT pin of process chip U after diode D4 and resistance R10, positive pole is connected with the collector of triode VT2, the polar capacitor C2 that negative pole is connected with the P pole of diode D3 after resistance R1, positive pole is connected with the IN pin of process chip U, the polar capacitor C6 of minus earth, N pole is connected with the VDD pin of process chip U after inductance L, the diode D2 that P pole is connected with the DIN pin of process chip U, positive pole is connected with the N pole of diode D2 after resistance R9, the polar capacitor C3 that negative pole is connected with the base stage of triode VT1, positive pole is connected with the emitter of triode VT1, the polar capacitor C4 that negative pole is connected with the CS pin of process chip U after diode D5, and P pole is connected with the collector of triode VT1 after resistance R11, the diode D6 that N pole is connected with the output terminal of amplifier P1 after resistance R12 forms, the negative pole of described amplifier P1 is connected with the OUT pin of process chip U, its positive pole is connected with the negative pole of polar capacitor C4, its output terminal then as digital strain circuit output terminal and be connected with processor, the IN pin of described process chip U is connected with the N pole of diode D3, its GND pin ground connection.
Further, described selection unit is also connected with encrypted tunnel; Described signal confirmation unit is also connected with SIM unit; For guaranteeing best result of use of the present invention, described process chip U is MAX1494 integrated chip.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the different load data message of current through meter can be converted to different signal codes by digital strain circuit of the present invention, thus effectively ensure that the privacy information of user side is not revealed.
(2) signal of the present invention sorts out the signal wave information decomposition generated after processor can be changed by unit is privacy information and general information, thus improve intelligent electric meter control system of the present invention to the accuracy of user profile Classification Management, ensure that the privacy information of user side is not revealed simultaneously.
Accompanying drawing explanation
Fig. 1 is one-piece construction block diagram of the present invention.
Fig. 2 is the electrical block diagram of digital strain circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
As shown in Figure 1; the present invention is primarily of information acquisition unit; processor; the analytic unit be all connected with processor and signal sort out unit; the signal confirmation unit that unit is connected is sorted out with signal; the protected location be all connected with signal confirmation unit and SIM unit and selection unit, the display unit be all connected with selection unit and encrypted tunnel, and the digital strain circuit that input end is connected with information acquisition unit, its output terminal is connected with processor forms.
During enforcement, the different load data message of the current through meter that information acquisition unit gathers by digital strain circuit of the present invention is converted to different signal codes, described analytic unit measures load parameter by analyzing this signal code, to draw the information such as electrical equipment kind and electricity of electricity consumption.System thresholds is provided with in this described analytic unit; private data and general data is drawn by comparing with threshold data; this analytic unit analysis is transferred to two groups that draw different information datas is simultaneously transferred to signal again after processor carries out information processing and sorts out unit; this signal is sorted out unit and is then reaffirmed being sent to information confirmation unit after privacy information and general information classification packing, and is left in protected location by privacy information.
Due to, being separated privacy signal is very important systems engineering, so be also provided with selection unit in the present invention, the information of output can be carried out classification and be exported by described selection unit.Electric quantity data information is sent to display unit by this selection unit, and this display unit is for showing the electricity of ammeter.Described selection unit transfers out after then sending to encrypted tunnel to be encrypted other electric charge parameter information, and this just effectively avoids the private data sent in data and is revealed.
In order to better implement the present invention, described SIM unit is arranged in confirmation unit, is also provided with signal receiver and signal projector in this SIM unit.When user allows, user can send and allow code to SIM unit, and this SIM unit just can send and allow access instruction and confirm that password is to signal confirmation unit, and the data in described protected location can send through encrypted tunnel.Arranging of SIM unit can also facilitate the metering situation of user's real-time query ammeter and arrange payment reminding service simultaneously.
As shown in Figure 2, described digital strain circuit by process chip U, amplifier P1, triode VT1, triode VT2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C4, polar capacitor C5, polar capacitor C6, diode D1, diode D2, diode D3, diode D4, diode D5, and diode D6 forms.
During connection, the negative pole of polar capacitor C5 is connected with the base stage of triode VT2, its positive pole is connected with the P pole of diode D1 after resistance R2, and the N pole of described diode D1 is connected with the VDD pin of process chip U after resistance R8.One end of resistance R5 is connected with the base stage of triode VT2, the other end is connected with the EOC pin of process chip U.While one end of resistance R3 is connected with the positive pole of polar capacitor C5 as the input end of digital strain circuit and be connected with information acquisition unit, the other end is connected with the REF pin of process chip U.
Wherein, the minus earth of polar capacitor C1, positive pole are connected with the VDD pin of process chip U after resistance R4.The N pole of diode D3 is connected with the emitter of triode VT2 after resistance R6, its P pole is connected with the P pole of diode D4 after resistance R7, and the N pole of described diode D4 is connected with the OUT pin of process chip U after resistance R10.The positive pole of polar capacitor C2 is connected with the collector of triode VT2, negative pole is connected with the P pole of diode D3 after resistance R1.The positive pole of polar capacitor C6 is connected with the IN pin of process chip U, minus earth.
Meanwhile, the N pole of diode D2 is connected with the VDD pin of process chip U after inductance L, P pole is connected with the DIN pin of process chip U.The positive pole of polar capacitor C3 is connected with the N pole of diode D2 after resistance R9, negative pole is connected with the base stage of triode VT1.The positive pole of polar capacitor C4 is connected with the emitter of triode VT1, its negative pole is connected with the N pole of diode D5, and the P pole of described diode D5 is then connected with the CS pin of process chip U.The P pole of diode D6 is connected with the collector of triode VT1 after resistance R11, N pole is connected with the output terminal of amplifier P1 after resistance R12.
The negative pole of described amplifier P1 is connected with the OUT pin of process chip U, its positive pole is connected with the negative pole of polar capacitor C4, its output terminal then as digital strain circuit output terminal and be connected with processor and be connected with processor; The IN pin of described process chip U is connected with the N pole of diode D3, its GND pin ground connection.
Different load data message is converted to different signal codes to better realize by digital strain circuit of the present invention, and the process chip U in the present invention have employed the MAX1494 integrated chip of 8.Resistance R3 and diode D1 and inductance L are wherein connected in series between the REF pin of MAX1494 integrated chip and DIN pin to realize the gain of different pieces of information signal, EOC pin and resistance R5 and the element such as triode VT2 and diode D3 form input bridge, and this input bridge is used for the difference of detection signal.The different signal code generated after the conversion of MAX1494 integrated chip amplifies output channel by the signal formed by amplifier P1 and the element such as diode D5 and polar capacitor C4 after CS pin and OUT pin and exports.
As mentioned above, just the present invention can well be realized.
Claims (5)
1. the intelligent electric meter control system based on digital strain circuit, primarily of processor, information acquisition unit, the analytic unit be all connected with processor and signal sort out unit, the signal confirmation unit that unit is connected is sorted out with signal, the protected location be all connected with signal confirmation unit and selection unit, and the display unit be connected with selection unit forms; It is characterized in that: between information acquisition unit and processor, be also serially connected with digital strain circuit.
2. a kind of intelligent electric meter control system based on digital strain circuit according to claim 1, it is characterized in that, described digital strain circuit is by process chip U, amplifier P1, triode VT1, triode VT2, negative pole is connected with the base stage of triode VT2, positive pole is in turn through polar capacitor C5 that resistance R2 is connected with the VDD pin of process chip U after diode D1 and resistance R8, one end is connected with the base stage of triode VT2, the resistance R5 that the other end is connected with the EOC pin of process chip U, input end as digital strain circuit while one end is connected with the positive pole of polar capacitor C5 is connected with information acquisition circuit, the resistance R3 that the other end is connected with the REF pin of process chip U, minus earth, the polar capacitor C1 that positive pole is connected with the VDD pin of process chip U after resistance R4, N pole is connected with the emitter of triode VT2 after resistance R6, P pole is in turn through diode D3 that resistance R7 is connected with the OUT pin of process chip U after diode D4 and resistance R10, positive pole is connected with the collector of triode VT2, the polar capacitor C2 that negative pole is connected with the P pole of diode D3 after resistance R1, positive pole is connected with the IN pin of process chip U, the polar capacitor C6 of minus earth, N pole is connected with the VDD pin of process chip U after inductance L, the diode D2 that P pole is connected with the DIN pin of process chip U, positive pole is connected with the N pole of diode D2 after resistance R9, the polar capacitor C3 that negative pole is connected with the base stage of triode VT1, positive pole is connected with the emitter of triode VT1, the polar capacitor C4 that negative pole is connected with the CS pin of process chip U after diode D5, and P pole is connected with the collector of triode VT1 after resistance R11, the diode D6 that N pole is connected with the output terminal of amplifier P1 after resistance R12 forms, the negative pole of described amplifier P1 is connected with the OUT pin of process chip U, its positive pole is connected with the negative pole of polar capacitor C4, its output terminal then as digital strain circuit output terminal and be connected with processor, the IN pin of described process chip U is connected with the N pole of diode D3, its GND pin ground connection.
3. a kind of intelligent electric meter control system based on digital strain circuit according to claim 2, is characterized in that, described selection unit is also connected with encrypted tunnel.
4. a kind of intelligent electric meter control system based on digital strain circuit according to claim 3, it is characterized in that, described signal confirmation unit is also connected with SIM unit.
5. a kind of intelligent electric meter control system based on digital strain circuit according to claim 4, it is characterized in that, described process chip U is MAX1494 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848962.7A CN105353209A (en) | 2015-11-27 | 2015-11-27 | Intelligent ammeter control system based on digital strain circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848962.7A CN105353209A (en) | 2015-11-27 | 2015-11-27 | Intelligent ammeter control system based on digital strain circuit |
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| CN105353209A true CN105353209A (en) | 2016-02-24 |
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| CN201510848962.7A Pending CN105353209A (en) | 2015-11-27 | 2015-11-27 | Intelligent ammeter control system based on digital strain circuit |
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| CN1760919A (en) * | 2004-10-16 | 2006-04-19 | 方文淋 | Remote automatic charging system and method for charging fees for water, electricity and gas |
| CN101291059A (en) * | 2007-08-28 | 2008-10-22 | 东南大学 | Electricity quality analyzer oriented to digitalized electrical system and electricity quality analysis method |
| CN202276369U (en) * | 2011-10-31 | 2012-06-13 | 深圳市腾邦物流股份有限公司 | Weight acquisition device for internet of things |
| CN103335752A (en) * | 2013-06-20 | 2013-10-02 | 中山市拓维电子科技有限公司 | Remotely and dynamically surveying system and method for road pre-buried shear stress |
| CN203260187U (en) * | 2013-01-30 | 2013-10-30 | 深圳市中技源专利城有限公司 | Plastic optical fiber interface terminal meter |
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| CN104502696A (en) * | 2014-12-25 | 2015-04-08 | 芜湖市晨韵自动化科技有限公司 | Intelligent electricity meter |
| CN104502693A (en) * | 2014-12-25 | 2015-04-08 | 芜湖市晨韵自动化科技有限公司 | Intelligent electric meter |
| CN104766377A (en) * | 2015-02-11 | 2015-07-08 | 四川蜀路通机电设备安装有限公司 | Frequency conversion identification system with rapid processing function |
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2015
- 2015-11-27 CN CN201510848962.7A patent/CN105353209A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2528023Y (en) * | 2002-01-11 | 2002-12-25 | 湖南平安科技有限公司 | Digital pre-paying electric energy meter |
| CN1760919A (en) * | 2004-10-16 | 2006-04-19 | 方文淋 | Remote automatic charging system and method for charging fees for water, electricity and gas |
| CN101291059A (en) * | 2007-08-28 | 2008-10-22 | 东南大学 | Electricity quality analyzer oriented to digitalized electrical system and electricity quality analysis method |
| CN202276369U (en) * | 2011-10-31 | 2012-06-13 | 深圳市腾邦物流股份有限公司 | Weight acquisition device for internet of things |
| CN203260187U (en) * | 2013-01-30 | 2013-10-30 | 深圳市中技源专利城有限公司 | Plastic optical fiber interface terminal meter |
| CN103335752A (en) * | 2013-06-20 | 2013-10-02 | 中山市拓维电子科技有限公司 | Remotely and dynamically surveying system and method for road pre-buried shear stress |
| CN104199499A (en) * | 2014-08-29 | 2014-12-10 | 烟台恒迪克能源科技有限公司 | Intelligently controlled automatic integrated power saving system |
| CN104502696A (en) * | 2014-12-25 | 2015-04-08 | 芜湖市晨韵自动化科技有限公司 | Intelligent electricity meter |
| CN104502693A (en) * | 2014-12-25 | 2015-04-08 | 芜湖市晨韵自动化科技有限公司 | Intelligent electric meter |
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