CN106324422A - Smart watt-hour meter integrating temperature sensing function and self-compensation function - Google Patents
Smart watt-hour meter integrating temperature sensing function and self-compensation function Download PDFInfo
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- CN106324422A CN106324422A CN201610842859.6A CN201610842859A CN106324422A CN 106324422 A CN106324422 A CN 106324422A CN 201610842859 A CN201610842859 A CN 201610842859A CN 106324422 A CN106324422 A CN 106324422A
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- electric energy
- energy meter
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- electricity
- communication module
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- 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
- G01R22/068—Arrangements for indicating or signaling faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a smart watt-hour meter integrating a temperature sensing function and a self-compensation function. The smart watt-hour meter comprises a central processing unit, a temperature sensor and a wire interface connected with an external wire; the wire interface is connected with a power supply device; the power supply device is connected with the central processing unit; the temperature sensor is connected with the central processing unit; the temperature sensor is located at the wire interface or the external wire; a power source switch and a communication module are connected in series between the power supply device and the central processing unit sequentially; and the central processing unit is also connected with an electricity quantity compensation processing device. The temperature sensor is adopted to detect the temperature of the wire interface, so that effective detection of various kinds of faults of an electric line can be realized, the problem of the incapacity of an existing smart watt-hour meter to detect the poor performance of wire connection can be solved, the normal operation of the intelligent watt-hour meter and the electric wire can be ensured, and potential safety hazards in the use of the watt-hour meter can be eliminated. The smart watt-hour meter has the advantages of simple structure, low cost, high stability, high reliability and great economic and social benefits.
Description
Technical field
The present invention relates to electric energy meter apparatus field, be specifically related to one and integrate temperature sense and electricity self-compensating function
Intelligent electric energy meter.
Background technology
Intelligent electric energy meter shows the intelligent terminal of intelligent grid, and intelligent electric energy meter is except possessing the meter of traditional electric energy meter amount
Beyond amount function, also have two-way multiple rate function of measuring, user side controls function, the two-way number of plurality of data transmission modes
According to communication, the intelligentized function such as anti-electricity-theft, it is intelligent that intelligent electric energy meter represents following energy-conserving intelligent electrical network end user
The developing direction of terminal.
In prior art, whether intelligent electric energy meter is generally overloaded by the size detection electric current of electric current by detection, or profit
Overload power-off protection is realized with electric fuse.But when abnormal by electric line, such as the loose contact between wire and electric energy meter, contact
Resistance is excessive, also results in the metal of junction, conductor overheating, can cause electric energy meter and with the damage of electric line, and this different
Often state cannot normally detect, therefore electric energy meter in use exists potential safety hazard.
Meanwhile, in electric energy meter Renewal process, electric energy meter load is unstable, because of work on the spot environmental effect, part electric energy meter
Change the field operation time long, merely can only manually calculate according to voltage, electric current, power factor and the time of record and change
Electricity during table, easily causes bigger calculating error, causes remedying electricity inaccuracy, brings easily to client and power supply both sides
Loss.
Based on this, study and develop a kind of intelligent electric energy integrating temperature sense and electricity self-compensating function of design
Table.
Summary of the invention
The technical problem to be solved is: existing intelligent electric energy meter cannot detect abnormal with electric line damage etc.
Situation, and owing to existing electric energy meter is in Renewal process, calculating of electric energy easily occurs that bigger error cannot realize electric energy certainly
Compensate, a kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function is now provided, arrange at wire connector
Temperature is realized monitoring sensing in real time by temperature sensor, and can accurately calculate the loss of electricity in electric energy meter Renewal process, solves
Line temperature sensing cannot be caused the circuit to damage by existing intelligent electric energy meter in time, changes electricity calculating error during ammeter
The technological deficiency such as big.
The present invention is achieved through the following technical solutions:
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function, passes including CPU, temperature
The conductor interface that sensor is connected with outer lead, conductor interface is connected with power supply device, power supply device and centre
Reason unit connects；Temperature sensor is connected with CPU, and temperature sensor is positioned at conductor interface or outer lead；Electricity
Being sequentially connected in series on and off switch, communication module between source electric supply installation and CPU, CPU is also associated with
Electricity compensation deals device.
Temperature sensor is arranged at conductor interface end or wire by the technical program, the temperature at the place of setting can be had
Effect detection, there is the situation generation that connection is bad in prevention, ensures the normal work of intelligent electric energy meter and electrical wiring.
Preferably, described CPU is also associated with electric energy on-site calibrator.
Preferably, described CPU is also connected with relay, and relay is for controlling Guan Bi or the disconnection of circuit.Continue
The setting of electrical equipment, its Main Function is, when there is unusual condition, cuts off power supply in time.When the electricity that CPU receives
When the data that pressure collecting unit, current acquisition unit, metering units transmit exceed normal range, CPU can open
Motor type relay cuts off the connection with power supply device.
Preferably, described CPU is also associated with display module, and described display module includes display screen, display lamp.
The effect of display module is can to show intuitively with electricity condition, is shown by display screen, display lamp.
Preferably, described communication module be WIFI wireless communication module, bluetooth communication, GPRS/3G/4G communication module,
Any one in RS485 communication module, RS232 communication module.Voltage acquisition unit, electricity are mainly easy in arranging of communication module
Stream collecting unit, metering units, display module, relay, the data between temperature sensor and CPU, control letter
Number transmission.
Preferably, described conductor interface is connected with voltage acquisition unit, current acquisition unit respectively, described voltage acquisition list
Unit, current acquisition unit are all connected with CPU by metering units.
Preferably, described also including stores circuit, stores circuit and is connected with CPU.Storage circuit may be implemented in electricity
Energy table is in locally store information.
Preferably, described on and off switch is press button.
The power supply device related in the technical program can be lithium battery, or 220v alternating current power supply.
The present invention compared with prior art, has such advantages as and beneficial effect:
(1) the technical program this by arranging the temperature of temperature sensor detection conductor interface, it is achieved that various faults effective
Detection, overcomes existing intelligent electric energy meter and cannot detect the problem that connection is bad, it is achieved intelligent electric energy meter and electrical wiring
Normal work, eliminate electric energy meter and use potential safety hazard, and simple in construction, low cost, reliable and stable, have good economy and
Social benefit.
(2) power supply device, on and off switch, electricity compensation deals device, communicator and the electricity arranged in the present invention
Can table on-site calibrator, power supply device and on and off switch be connected in series, and communicator is connected with CPU, intelligent
Electric energy meter is voltage x current size and phase place real-time change thereof when charged for replacement, and power presents unordered discrete point simultaneously, uses
Third-order spline interpolation method can approach actual power curve, it can be ensured that loses the accurate of electric quantity metering during changing electric energy meter
Property, in intelligent electric energy meter, electricity compensation deals device is based on third-order spline interpolation method and makes, it is possible to accurately metering ammeter is more
Loss electricity during changing, it is to avoid cause unnecessary economic loss to user and supplier of electricity.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic block diagram of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1:
As it is shown in figure 1, a kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function, process single including central authorities
The conductor interface that unit, temperature sensor are connected with outer lead, conductor interface is connected with power supply device, and power supply is for Denso
Put and be connected with CPU；Temperature sensor is connected with CPU, and temperature sensor is positioned at conductor interface or outer
At portion's wire；Being sequentially connected in series on and off switch, communication module between power supply device and CPU, central authorities process single
Unit is also associated with electricity compensation deals device.
Wherein, described CPU is also associated with electric energy on-site calibrator.
Wherein, described CPU is also connected with relay, and relay is for controlling Guan Bi or the disconnection of circuit.
Wherein, described CPU is also associated with display module, and described display module includes display screen, display lamp.
Wherein, described communication module be WIFI wireless communication module, bluetooth communication, GPRS/3G/4G communication module,
Any one in RS485 communication module, RS232 communication module.
Wherein, described conductor interface is connected with voltage acquisition unit, current acquisition unit respectively, described voltage acquisition list
Unit, current acquisition unit are all connected with CPU by metering units.Described voltage sampling unit and current unit
Input is all connected with conductor interface, and the outfan of voltage sampling unit and current unit is all with the input of metering units even
Connecing, metering units is connected with CPU.By the collection of wire voltage, electric current can be obtained line voltage distribution, electricity simultaneously
The electrical network parameters such as stream, power, frequency, electric energy, effectively monitor line status.To line voltage distribution, electric current, power, frequency, electric energy etc.
Electrical network parameter can also find that circuit is abnormal in time.
Wherein, the present embodiment also includes storing circuit, and storage circuit is connected with CPU.
Wherein, described on and off switch is press button.
Power supply device described in the present embodiment is direct-current power source supply device, it is possible to for alternating current power supply for Denso
Put.When for direct-current power source supply device, it can be lithium battery etc.；When using alternating current power supply electric supply installation, 220V can be directly accessed
Alternating current power supply.
Described on and off switch is press button, is used for controlling the startup for whole intelligent electric energy meter and closedown, and difference
Supply to electricity compensation deals device, communicator and electric energy meter on-site calibrator other structures of intelligent electric energy meter such as power
Electricity, is also used for the switching controlling between direct-current power source supply device and alternating current power supply electric supply installation.
The device of electricity compensation deals described in the present embodiment is the electricity compensation deals device utilizing third-order spline interpolation method,
It is used for calculating and changes the electricity of loss during table, and the electricity of loss is shown.
The CPU related in the present embodiment is single-chip microcomputer, is a kind of IC chip, for the public affairs of this area
Know general knowledge, in the present embodiment, CPU concretely 80C51 single-chip microcomputer.
Communication module in the present embodiment is RS485 single-chip microcomputer.Electric energy meter on-site calibrator can be measured by communication module
Data are transferred in single-chip microcomputer.In the present embodiment, electric energy meter on-site calibrator can be three-phase electric energy meter on-site calibrator.
Carrying out intelligent electric energy meter when changing table handling, reliable short circuit is changed electric energy meter secondary current testing terminal, and by height
Precision ammeter is measured current value size and is judged whether reliable short circuit, the signal of electric energy meter on-site calibrator access input with
Electric energy meter voltage and electric current metering binding post link together.The signal of electric energy meter on-site calibrator accesses outfan and central authorities
Processing unit electrically connects, and is then connected the electricity compensation deals device utilizing third-order spline interpolation method, communication by communication module
The power data discrete point that three-phase electric energy meter on-site calibrator is measured by device is transferred to utilize the electricity of third-order spline interpolation method
Compensation deals device, last counting loss changes the electricity during table and shows.
The present embodiment relates to middle voltage acquisition unit, current acquisition unit, metering units, electric energy on-site calibrator, deposits
Storage circuit, communication module, electricity compensation deals device, relay, the structure of CPU and principle thereof are art
Common knowledge, the present embodiment is important from prior art different to be, uses existing structure, is used institute in embodiment 1
The intelligent electric energy meter that the annexation stated is formed, thus solve existing intelligent electric energy meter and cannot detect by electric line damage, nothing
Method ensures intelligent electric energy meter, and circuit normally uses, and owing to existing electric energy meter is in Renewal process, the calculating of electric energy easily occurs
Bigger error cannot realize electric energy self compensation, accurately calculates the technological deficiencies such as electric quantity loss.And embodiment 1 can solve
The problems referred to above.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (8)
1. the intelligent electric energy meter integrating temperature sense and electricity self-compensating function, it is characterised in that: include centre
The conductor interface that reason unit, temperature sensor are connected with outer lead, conductor interface is connected with power supply device, and power supply supplies
Electric installation is connected with CPU；Temperature sensor is connected with CPU, and temperature sensor is positioned at conductor interface
Or at outer lead；On and off switch, communication module, centre it has been sequentially connected in series between power supply device and CPU
Reason unit is also associated with electricity compensation deals device.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 1, its
It is characterised by: described CPU is also associated with electric energy on-site calibrator.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 2, its
Being characterised by: described CPU is also connected with relay, relay is for controlling Guan Bi or the disconnection of circuit.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 3, its
Being characterised by: described CPU is also associated with display module, described display module includes display screen, display lamp.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 4, its
It is characterised by: described communication module is WIFI wireless communication module, bluetooth communication, GPRS/3G/4G communication module, RS485
Any one in communication module, RS232 communication module.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 5, its
It is characterised by: described conductor interface is connected with voltage acquisition unit, current acquisition unit respectively, described voltage acquisition unit, electricity
Stream collecting unit is all connected with CPU by metering units.
A kind of intelligent electric energy meter integrating temperature sense and electricity self-compensating function the most according to claim 6, its
Being characterised by: also include storing circuit, storage circuit is connected with CPU.
8. according to a kind of intelligence integrating temperature sense and electricity self-compensating function described in any one of claim 1 to 7
Electric energy meter, it is characterised in that: described on and off switch is press button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842859.6A CN106324422A (en) | 2016-09-23 | 2016-09-23 | Smart watt-hour meter integrating temperature sensing function and self-compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842859.6A CN106324422A (en) | 2016-09-23 | 2016-09-23 | Smart watt-hour meter integrating temperature sensing function and self-compensation function |
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| Publication Number | Publication Date |
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| CN106324422A true CN106324422A (en) | 2017-01-11 |
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| CN201610842859.6A Pending CN106324422A (en) | 2016-09-23 | 2016-09-23 | Smart watt-hour meter integrating temperature sensing function and self-compensation function |
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| CN201837676U (en) * | 2010-09-29 | 2011-05-18 | 宁波三星电气股份有限公司 | Real-time clock and temperature measurement circuit |
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| CN103529290A (en) * | 2012-11-02 | 2014-01-22 | 国家电网公司 | Three-phase intelligent meter capable of acquiring information of power distribution and power utilization |
| CN204287315U (en) * | 2014-11-24 | 2015-04-22 | 山东科技大学 | Based on the power monitoring system of STM32F103 microcontroller |
| CN204832276U (en) * | 2015-07-17 | 2015-12-02 | 广东浩迪创新科技有限公司 | Electric energy meter with temperature -sensing function |
| CN204945239U (en) * | 2015-08-03 | 2016-01-06 | 云南电网有限责任公司电力科学研究院 | Electric quantity loss compensate for malfunctions device under the online substitute mode of a kind of gate energy meter |
| CN105242108A (en) * | 2015-09-23 | 2016-01-13 | 国网山东莒县供电公司 | Intelligent electric meter |
| CN205193155U (en) * | 2015-12-10 | 2016-04-27 | 国网四川省电力公司内江供电公司 | Electric energy meter of remote monitoring |
-
2016
- 2016-09-23 CN CN201610842859.6A patent/CN106324422A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062811A (en) * | 2009-11-18 | 2011-05-18 | 上海金陵智能电表有限公司 | Single-phase static watt-hour meter with wireless meter reading module |
| CN201837676U (en) * | 2010-09-29 | 2011-05-18 | 宁波三星电气股份有限公司 | Real-time clock and temperature measurement circuit |
| CN202281789U (en) * | 2011-10-08 | 2012-06-20 | 江阴长仪集团有限公司 | Intelligent electric energy meter with precise timing module |
| KR101214323B1 (en) * | 2011-12-29 | 2013-02-01 | 대한전선 주식회사 | Smart watt-hour meter for power management connected with power exchange system |
| CN103529290A (en) * | 2012-11-02 | 2014-01-22 | 国家电网公司 | Three-phase intelligent meter capable of acquiring information of power distribution and power utilization |
| CN204287315U (en) * | 2014-11-24 | 2015-04-22 | 山东科技大学 | Based on the power monitoring system of STM32F103 microcontroller |
| CN204832276U (en) * | 2015-07-17 | 2015-12-02 | 广东浩迪创新科技有限公司 | Electric energy meter with temperature -sensing function |
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Application publication date: 20170111 |