CN201215573Y - Electric energy meter having safety protection function - Google Patents
Electric energy meter having safety protection function Download PDFInfo
- Publication number
- CN201215573Y CN201215573Y CNU2008200532906U CN200820053290U CN201215573Y CN 201215573 Y CN201215573 Y CN 201215573Y CN U2008200532906 U CNU2008200532906 U CN U2008200532906U CN 200820053290 U CN200820053290 U CN 200820053290U CN 201215573 Y CN201215573 Y CN 201215573Y
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- CN
- China
- Prior art keywords
- electric energy
- central processing
- energy meter
- processing unit
- protection function
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Abstract
The utility model discloses an electric energy meter with a security and defense function, which comprises a central processing unit, a current mutual inductor and a voltage mutual inductor, a metering module whose two input ends are respectively connected with the output end of the current mutual inductor and the output end of the voltage mutual inductor, and the output end is connected with one input end of the central processing unit, one or more than one sensors for security and defense whose output end is connected with the input end of the central processing unit, a clock circuit in which output end is connected with the clock input end of the central processing unit, and an alarm whose input end is connected with the output end of the central processing unit to realize the G P R S wireless alarm. The electric energy meter with the security and defense function can realize the electric energy metering and the security and defense function with lower cost.
Description
Technical field
The invention belongs to the electronic instrument field, relate to a kind of electric energy meter with safety protection function.
Background technology
The electric energy meter main application of all size is to be used for single-phase, three-phase electric energy metering at present, and for various security products, mainly only be used for home security as the door and window inductor, the domestic gas detector only is used for family and surveys gas leakage alarm, smoke alarm is used to survey smog situation etc. in the room, its purposes is very single-minded, and it is higher to be equipped with the cost of complete the said equipment or device, and the maintenance of individual equipment or device is also inconvenient.
Summary of the invention
Technical matters to be solved by this invention is that a kind of electric energy meter with safety protection function is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of electric energy meter with safety protection function is characterized in that, comprises
One central processing unit;
One current transformer and a voltage transformer (VT);
One metering module, 2 input ends of this metering module connect the output terminal of current transformer and the output terminal of voltage transformer (VT) respectively, and the output terminal of this metering module connects an input end of central processing unit;
One or more security protection sensors, this security protection connect the input end of central processing unit with the output terminal of sensor;
One clock circuit, this clock circuit output terminal connects the input end of clock of central processing unit;
One alarm, the input end of this alarm connects the output terminal of central processing unit.
Described security protection sensor is flue gas sensor, door and window Magnetic Sensor and gas sensor.
This has the electric energy meter of safety protection function, also comprises a burnt gas valve controller, an output terminal of the control termination central processing unit of this burnt gas valve controller.
Described alarm comprises a wireless transmitting unit, a radio receiving unit and an alarm unit, and wireless transmitting unit adopts radio communication to be connected with radio receiving unit, and radio receiving unit connects alarm unit.
Described wireless transmitting unit adopts the GPRS (General Packet Radio Service) communication mode to be connected with radio receiving unit.
This electric energy meter with safety protection function comprises that also one is used to cut off the relay of indoor power supply, an output terminal of the control termination central processing unit of relay.
Described metering module adopts computation chip ade7755 or ade7758.
Described central processing unit is s3f84db.
This has the electric energy meter of safety protection function, also comprises a standby power supply, and this standby power supply output terminal connects the power input of central processing unit.
Described clock circuit adopts clock chip RTC8025.
The invention has the beneficial effects as follows: realized that security protection and electric energy metrical function are in one, and can realize detections such as flue gas, combustion gas spill and leakage, door magnetic induction, feature richness, the mode page or leaf that all multifunction modules is concentrated has reduced the integrated cost of product, has improved The comprehensive performance.
Description of drawings
Fig. 1 is a system architecture synoptic diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1:
As shown in Figure 1, a kind of electric energy meter with safety protection function, specific implementation is as follows:
(1) Current Transformer and voltage transformer (VT) sampling, sampled data (signal) is sent into computation chip ade7755 or ade7758, pulse signal is sent among the s3f84db (central processing unit) then, carries out electric energy metrical.
(2) combustion gas spill and leakage signal adopts the gas sensor signal sampling, and sampled signal is input to central processing unit.
(3) central processing unit also is connected with storer, and this storer is used for depositing and closes data such as threshold value, electric quantity data and time such as valve, outage, warning, also stores the various duties of electric energy meter.
(4) LCD is used for showing data and states such as total electric weight, timesharing electric weight, voltage, electric current, warning message, pass valve information, time and communication.
(5) receive the gas leak signal when central processing unit, send and close the valve instruction, close gas piping by the burnt gas valve controller.When central processing unit detects the gas leakage signal, start alarm, promptly start wireless transmitting unit, by GPRS (General Packet Radio Service, GPRS (General Packet Radio Service)) sends alerting signal to radio receiving unit, radio receiving unit receives the report for police service and starts alarm unit behind the signal, sends sound and light alarm; When central processing unit detects cigarette sense signal, start alarm, send instruction to relay simultaneously, cut off the room power supply.
(6) design of power unit circuit: civil power is carried out rectifying and wave-filtering etc. (when the mains failure, the back-up source power supply is to keep data) after by the transformer transformation again power to central processing unit.
(7) clock circuit is realized with clock chip RTC8025, and for reometer provides real-time clock, thereby electric energy meter can carry out time-shared charge.
Claims (10)
1, a kind of electric energy meter with safety protection function is characterized in that, comprises
One central processing unit;
One current transformer and a voltage transformer (VT);
One metering module, 2 input ends of this metering module connect the output terminal of current transformer and the output terminal of voltage transformer (VT) respectively, and the output terminal of this metering module connects an input end of central processing unit;
One or more security protection sensors, this security protection connect the input end of central processing unit with the output terminal of sensor;
One clock circuit, this clock circuit output terminal connects the input end of clock of central processing unit;
One alarm, the input end of this alarm connects the output terminal of central processing unit.
2, a kind of electric energy meter with safety protection function as claimed in claim 1 is characterized in that, described security protection sensor is flue gas sensor, door and window Magnetic Sensor and gas sensor.
3, a kind of electric energy meter with safety protection function as claimed in claim 2 is characterized in that, also comprises a burnt gas valve controller, an output terminal of the control termination central processing unit of this burnt gas valve controller.
4, a kind of electric energy meter as claimed in claim 1 with safety protection function, it is characterized in that, described alarm comprises a wireless transmitting unit, a radio receiving unit and an alarm unit, wireless transmitting unit adopts radio communication to be connected with radio receiving unit, and radio receiving unit connects alarm unit.
5, a kind of electric energy meter with safety protection function as claimed in claim 1 is characterized in that, described wireless transmitting unit adopts the GPRS (General Packet Radio Service) communication mode to be connected with radio receiving unit.
6, a kind of electric energy meter with safety protection function as claimed in claim 1 comprises that also one is used to cut off the relay of indoor power supply, an output terminal of the control termination central processing unit of relay.
7, a kind of electric energy meter with safety protection function as claimed in claim 1 is characterized in that, described metering module adopts computation chip ade7755 or ade7758.
8, a kind of electric energy meter with safety protection function as claimed in claim 1 is characterized in that, described central processing unit is s3f84db.
9, a kind of electric energy meter with safety protection function as claimed in claim 1 is characterized in that, also comprises a standby power supply, and this standby power supply output terminal connects the power input of central processing unit.
As each described a kind of electric energy meter of claim 1～9, it is characterized in that 10,, it is characterized in that described clock circuit adopts clock chip RTC8025 with safety protection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200532906U CN201215573Y (en) | 2008-05-27 | 2008-05-27 | Electric energy meter having safety protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200532906U CN201215573Y (en) | 2008-05-27 | 2008-05-27 | Electric energy meter having safety protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215573Y true CN201215573Y (en) | 2009-04-01 |
Family
ID=40520777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200532906U Expired - Fee Related CN201215573Y (en) | 2008-05-27 | 2008-05-27 | Electric energy meter having safety protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201215573Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323463A (en) * | 2011-08-05 | 2012-01-18 | 郑州联兴百年电力工程有限公司 | Intelligent electricity stealing preventing control device for electricity meter box |
| CN105548685A (en) * | 2015-12-15 | 2016-05-04 | 彭江莲 | Electronic intelligent electric energy meter |
-
2008
- 2008-05-27 CN CNU2008200532906U patent/CN201215573Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323463A (en) * | 2011-08-05 | 2012-01-18 | 郑州联兴百年电力工程有限公司 | Intelligent electricity stealing preventing control device for electricity meter box |
| CN105548685A (en) * | 2015-12-15 | 2016-05-04 | 彭江莲 | Electronic intelligent electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20110527 |