CN202260643U - Multifunctional electric meter - Google Patents
Multifunctional electric meter Download PDFInfo
- Publication number
- CN202260643U CN202260643U CN2011204013074U CN201120401307U CN202260643U CN 202260643 U CN202260643 U CN 202260643U CN 2011204013074 U CN2011204013074 U CN 2011204013074U CN 201120401307 U CN201120401307 U CN 201120401307U CN 202260643 U CN202260643 U CN 202260643U
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- acquisition circuit
- switching value
- electric meter
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Abstract
The utility model discloses a multifunctional electric meter, which consists of a voltage acquisition circuit, a current acquisition circuit, an electric power dedicated chip, an analogue signal acquisition circuit, an on-off signal acquisition circuit, a central processing unit (CPU), a key input circuit, a light-emitting diode (LED) parameter display circuit, an on-off output circuit, a 485 communication module and a shell. By the multifunctional electric meter, the acquisition accuracy of the meter can be improved, electric power can be managed more effectively, the integration level of a management system can be enhanced, and the measurement and control cost of a power distribution system can be decreased.
Description
Technical field
The utility model relates to the electric instrument apparatus field, is specifically related to a kind of multifunctional electric meter that collects many input and output, population parameter metering demonstration and compensation control.
Background technology
Electric instrument is power measurement and the control appliance that electric parameter measurement, quality of power supply supervision and analysis, electric equipment control provide solution.Present electric instrument has following defective: 1) now electric power management system, most of because low precision cause electric instrument, and main electric power value and the inconsistent electrical management that causes of introducing point and floor loading end is difficult; 2) now electric power management system except that electric instrument, needs to buy in addition RTU equipment, for the user increases extra financial burden for management field digital, analog input output signal; 3) the conventional electric power instrument only can display voltage, partial parameters such as electric current; Though perhaps can show multi-parameter; But needing to carry out page turning through manual operation shows; Make the user can not understand various parameter informations in real time, have a strong impact on the user, can not in time adopt an effective measure with electricity condition unfavorable to the understanding of present load with electricity condition; 4) the conventional electric power instrument is only had parameter measurement, a Presentation Function, can not improve raising to power factor, can only purchase the purpose that idle compensating control reaches the compensation power factor separately.
The utility model content
To the above-mentioned shortcoming of existing electric instrument, the applicant improves through research, and a kind of multifunctional electric meter is provided, and can increase the instrument to collect precision, makes electrical management more effective, strengthens the management level of integrated system, reduces distribution system observing and controlling cost.
The technical scheme of the utility model is following:
A kind of multifunctional electric meter is made up of voltage collection circuit, current acquisition circuit, electric power special chip, analog signals Acquisition Circuit, switching value signal acquisition circuit, CPU CPU, button inputting circuits, LED parameter display circuit, switching value output circuit, 485 communication modules and housing; Voltage collection circuit and current acquisition circuit are through electric power special chip and CPU CPU and are electrically connected; Analog signals Acquisition Circuit, switching value signal acquisition circuit and button inputting circuits also are with the CPU CPU and are electrically connected, and the CPU CPU is with LED parameter display circuit, switching value output circuit and 485 communication modules respectively again and is electrically connected.
Its further technical scheme is: said LED parameter display circuit has 11 groups of high brightness charactrons.Said button inputting circuits has 4 action buttons.Said switching value output circuit connects logical building-out capacitor.
The useful technique effect of the utility model is:
One, the utility model shows important parameters such as the three-phase voltage of electric power system, three-phase current, frequency, active power, reactive power, power factor, electric energy through high bright charactron simultaneously; Make the user have intuitively with electricity condition and understand timely, be convenient to the user and in time adopt an effective measure with electricity condition disadvantageous to present load.
Two, the utlity model has power factor collection, computing and compensation controlled function, make multifunctional electric meter have electric-power metering, demonstration and reactive power compensation controlled function simultaneously, a-table-multi-purpose, economical and practical.
Three, the utility model can be gathered nearly 8 road analog signalses; And 4 way switch amount output control signal; And can be provided with the interface display content setting through system be corresponding input information; Make a measuring instrument can manage on-the-spot multiple numeral and analog input information easily, need to buy the RTU product in addition compared with existing electric power management system and can alleviate the customer charge burden, improve economy.
Description of drawings
For the technical scheme among clearer explanation the utility model embodiment, below employed accompanying drawing among the embodiment is made brief account.These accompanying drawings constitute the application's a part, do not constitute the qualification to the utility model.
Fig. 1 is the functional-block diagram of the utility model.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1, the utility model is made up of voltage collection circuit 1, current acquisition circuit 2, electric power special chip 3, analog signals Acquisition Circuit 4, switching value signal acquisition circuit 5, CPU CPU 6, button inputting circuits 7, LED parameter display circuit 8, switching value output circuit 9 and 485 communication modules 10.Voltage collection circuit 1 is through electric power special chip 3 and CPU CPU 6 with current acquisition circuit 2 and is electrically connected.Analog signals Acquisition Circuit 4, switching value signal acquisition circuit 5 and button inputting circuits 7 also are with CPU CPU 6 and are electrically connected.CPU CPU 6 is with LED parameter display circuit 8, switching value output circuit 9 and 485 communication modules 10 respectively again and is electrically connected.
The utility model adopts the surface embedded type mounting structure, and above-mentioned each circuit is integrated in the plastic casing.Enclosure interior comprises two circuit boards: one is the control circuit board that comprises button operation and demonstration, and another piece is the host CPU circuit board that comprises power supply, input and output and control circuit.Control circuit board is connected through connector with the host CPU circuit board, carries out information interaction.Button inputting circuits 7, LED parameter display circuit 8 are integrated on the control circuit board; Control circuit board is assemblied on the housing cover; On 11 groups of high brightness charactrons are arranged; Respectively multi-parameters such as voltage, electric current are intuitively shown, and have 4 action buttons, make things convenient for the user that threshold value of displaying contents, monitoring parameter etc. is provided with.Voltage collection circuit 1, current acquisition circuit 2, electric power special chip 3, analog signals Acquisition Circuit 4, switching value signal acquisition circuit 5, CPU CPU 6, switching value output circuit 9,485 communication modules 10 are integrated on the host CPU circuit board; The host CPU circuit board is installed on housing 1 shell on the back; Binding post spills outside the housing, and all current signals, voltage signal, switching value/analog quantity input/output signal, control output signal, communication signal etc. all insert in the housing through this binding post.CPU CPU 6 adopts high performance AVR Single-chip Controlling treatment system in the present embodiment.
The human-computer interaction interface that the utility model is formed through surperficial button inputting circuits 7 and LED parameter display circuit 8 carries out the setting of system parameters and displaying contents; This practicality was accomplished a series of functions such as parameter demonstration, warning, communication newly promptly according to the setting content operation after completion was set.Referring to Fig. 1; The three-phase voltage signal that inserts from tested loop, three-phase current signal carry out quantification treatment through inserting electric power special chip 3 behind correspondent voltage Acquisition Circuit 1 and current acquisition circuit 2 sampling filters respectively, carry out information interaction by electric power special chip 3 and CPU CPU 6 then.Because voltage collection circuit 1 is high-accuracy voltage, current transformer with current acquisition circuit 2; Gather parameters of electric power through electric power special chip 3; Ensured the precision of electric-power metering from hardware; In addition through 1 ~ 31 minor loop harmonic wave is analyzed, handled, thereby reduced Harmonic Interference to influence that measuring accuracy caused from software.Simultaneously, analog signals and switching value signal get into CPU CPU 6 through analog signals Acquisition Circuit 4, switching value signal acquisition circuit 5 respectively.Nearly 8 road analog signals input points that analog signals Acquisition Circuit 4, switching value signal acquisition circuit 5 are integrated; And 4 way switch amount output control signal; Make an instrument can manage on-the-spot multiple numeral and analog input output easily; Need to buy the RTU product in addition compared with existing electric power management system and can alleviate the customer charge burden, improve economy.6 pairs of quantization parameters of CPU CPU carry out further harmonic analysis, computing and processing, draw other important parameters such as power, power factor, and normally show, report to the police or control such as reactive power compensation output according to default.Wherein LED parameter display circuit 8 shows important parameters such as three-phase voltage, three-phase current, frequency, active power, reactive power, power factor, electric energy through high bright charactron simultaneously, makes the user have intuitively with electricity condition present load and understands timely.Switching value output circuit 9 connects logical building-out capacitor, makes to the utlity model has power factor collection, computing and compensation controlled function, reaches the function that idle compensating control has.485 communication modules 10 are connected with upper location supervisory, realize Long-distance Control.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of the basic design that does not break away from the utility model, all should think to be included within the protection range of the utility model.
Claims (4)
1. a multifunctional electric meter is characterized in that: be made up of voltage collection circuit, current acquisition circuit, electric power special chip, analog signals Acquisition Circuit, switching value signal acquisition circuit, CPU CPU, button inputting circuits, LED parameter display circuit, switching value output circuit, 485 communication modules and housing; Voltage collection circuit and current acquisition circuit are through electric power special chip and CPU CPU and are electrically connected; Analog signals Acquisition Circuit, switching value signal acquisition circuit and button inputting circuits also are with the CPU CPU and are electrically connected, and the CPU CPU is with LED parameter display circuit, switching value output circuit and 485 communication modules respectively again and is electrically connected.
2. according to the said multifunctional electric meter of claim 1, it is characterized in that: said LED parameter display circuit has 11 groups of high brightness charactrons.
3. according to the said multifunctional electric meter of claim 1, it is characterized in that: said button inputting circuits has 4 action buttons.
4. according to the said multifunctional electric meter of claim 1, it is characterized in that: said switching value output circuit connects logical building-out capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204013074U CN202260643U (en) | 2011-10-20 | 2011-10-20 | Multifunctional electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204013074U CN202260643U (en) | 2011-10-20 | 2011-10-20 | Multifunctional electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260643U true CN202260643U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204013074U Expired - Fee Related CN202260643U (en) | 2011-10-20 | 2011-10-20 | Multifunctional electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510705A (en) * | 2015-12-10 | 2016-04-20 | 重庆鸿引电子有限公司 | Multifunctional electric power instrument |
-
2011
- 2011-10-20 CN CN2011204013074U patent/CN202260643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510705A (en) * | 2015-12-10 | 2016-04-20 | 重庆鸿引电子有限公司 | Multifunctional electric power instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20161020 |