CN220961667U - Multi-user intelligent ammeter - Google Patents
Multi-user intelligent ammeter Download PDFInfo
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- CN220961667U CN220961667U CN202322754028.1U CN202322754028U CN220961667U CN 220961667 U CN220961667 U CN 220961667U CN 202322754028 U CN202322754028 U CN 202322754028U CN 220961667 U CN220961667 U CN 220961667U
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- 238000004891 communication Methods 0.000 claims abstract description 44
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- 239000003990 capacitor Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 12
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
The utility model discloses a multi-user intelligent ammeter, and belongs to the technical field of electric quantity measurement. The household electric meter comprises an electric meter box, a multi-user electric meter body and a plurality of household electric meter bodies, wherein the household electric meter bodies and the multi-user electric meter bodies are all installed in the electric meter box and are connected with each other through wires, and each household electric meter body comprises an electric energy metering unit, an electric energy approval unit and a communication control unit which are installed in the electric meter box and used for metering electric energy; the electric quantity input end of the electric energy metering unit is connected with external equipment, and the signal output end of the electric energy metering unit is connected with the signal input end of the communication control unit; the electric energy metering unit comprises an electric energy metering special chip U1 for metering electric energy, a pin XOUT and a pin XIN of the electric energy metering special chip U1 are connected with the crystal oscillator Y1, and a signal input end of the electric energy approval unit is connected with the crystal oscillator Y1. The utility model checks the electric energy metering unit through the electric energy approval unit, and ensures the measurement accuracy of the electric energy metering unit.
Description
Technical Field
The utility model relates to the technical field of electric quantity measurement, in particular to a multi-user intelligent ammeter.
Background
The residential houses or apartments in China are mainly buildings. The utility model discloses a building contains several units generally, and each unit is few general nearly ten households, tens of more than one household, and tens of more than one household, if adopt the mounting means of a household and a meter, the ammeter not only need temporarily use great space, and when checking meter and power consumption management, has also increased the degree of difficulty, to above-mentioned circumstances, in order to be convenient for check meter and power consumption management, reduce the use in space simultaneously, multiuser smart electric meter's design and use are more and more extensive.
However, in the long-term use process of the intelligent electric meter, due to the problems of equipment aging and the like, inaccurate electricity consumption measurement occurs, maintenance personnel are required to regularly detect the long-term used electric meter, or when the intelligent electric meter is used for a specific time, the intelligent electric meter is directly replaced, so that resource waste is caused.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art and provide a multi-user intelligent ammeter for solving the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multiuser smart electric meter, includes the ammeter case, multiuser ammeter body and a plurality of branch household ammeter body, divide household ammeter body and multiuser ammeter body all to install in the ammeter case, and connect through the wiring each other, divide household ammeter body including installing the electric energy metering unit that is used for electric energy detection and measurement in the ammeter case, the electric energy approval unit of electric energy metering unit is connected to the electricity, the electric energy approval unit is used for verifying and approving electric energy metering unit, connects electric energy metering unit and outside power supply line's communication chip U2 simultaneously, communication chip U2 control respectively and connects communication port, infrared communication circuit, calendar/clock display circuit and memory cell, wherein, electric energy metering unit is used for measuring the power consumption, communication chip U2 is used for receiving electric energy metering unit signal, communication port, infrared communication circuit are used for exporting the measurement result of electric energy metering unit. The household electric meter comprises an electric meter box, a multi-user electric meter body and a plurality of household electric meter bodies, wherein the household electric meter bodies and the multi-user electric meter bodies are all installed in the electric meter box and are connected with each other through wires; the electric quantity input end of the electric energy metering unit is connected with external equipment, and the signal output end of the electric energy metering unit is connected with the signal input end of the communication control unit;
The electric energy metering unit comprises an electric energy metering special chip U1 for electric energy metering, a pin XOUT and a pin XIN of the electric energy metering special chip U1 are connected with the crystal oscillator Y1, a signal input end of the electric energy approving unit is connected with the crystal oscillator Y1, and the electric energy approving unit is used for detecting whether an oscillating signal of the crystal oscillator Y1 is abnormal or not.
Preferably, the electric energy metering unit comprises a voltage transformer T1, a current transformer T3 and a voltage transformer T2, wherein the input ends of the voltage transformer T1, the current transformer T3 and the voltage transformer T2 are respectively connected with external equipment through power lines, and the output ends of the voltage transformer T1, the current transformer T3 and the voltage transformer T2 are connected with an electric energy metering special chip U1.
Preferably, the electric energy approval unit includes a FET, a resistor R21, a resistor R22, a resistor R23, a resistor R24, an inductor L1, a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, and a power supply POW1, wherein a gate of the FET is electrically connected to one end of the crystal oscillator Y1 and one end of the resistor R21 at the same time, a source of the FET is electrically connected to the other end of the resistor R21, a negative electrode of the diode D1, and a pin 3 of the triode Q2 at the same time, and a drain of the FET is electrically connected to the other end of the crystal oscillator Y1, a capacitor C8, and a pin 1 of the inductor L1 at the same time;
One end of the resistor R22 is electrically connected with the capacitor C8, and the other end of the resistor R22 is electrically connected with the anode of the diode D1 and the pin 1 of the triode Q1 at the same time;
One end of the resistor R23 is electrically connected with the pin 2 of the inductor L1, the resistor R23 and one end of the power supply POW1 at the same time, and the other end of the resistor R23 is electrically connected with the pin 2 of the triode Q1;
pin 1 of triode Q2 is connected with pin 3 of triode Q1 electrically, its pin 2 is connected with the negative pole of the luminescent diode D2 electrically, pin 3 of triode Q2 connects the other end of power supply POW1 electrically;
the other end of the light emitting diode D2 is electrically connected to the resistor R24.
Preferably, the FET is an N-channel FET of model 2N3823, and the transistors Q1 and Q2 are NPN transistors of model 2N 3940.
Preferably, the special electric energy metering chip U1 is a special electric energy metering chip with the model CS5460A, and the communication chip U2 is a micro-control chip with the model DS89C 430.
Preferably, the crystal oscillator Y1 adopts a crystal oscillator with a frequency point of 4.096 MHz.
Preferably, the communication control unit comprises a communication chip U2, wherein a signal input end of the communication chip U2 is connected with a signal output end of the special electric energy metering chip U1, and a signal output end of the communication chip U2 is respectively connected with input ends of a storage circuit, a calendar/clock display circuit, an infrared communication circuit and a communication port.
Preferably, the communication chip U2 adopts a micro-control chip of DS89C430 model.
The beneficial effects are that: in the multiuser intelligent ammeter, the consumption of electric energy is measured through an electric energy metering unit, the accuracy of the electric energy measurement of the electric energy metering unit is verified through an electric energy approval unit, maintenance personnel do not need to check the ammeter regularly, the accurate measurement of the electricity consumption of a user can be realized, the measurement accuracy of the electric energy metering unit is ensured, signals of the electric energy metering unit are output under the control of a communication control unit, and the condition of outputting the electricity consumption is matched with a communication port, an infrared communication circuit and a calendar/clock display circuit;
Secondly, under the condition that the electricity consumption measurement is inaccurate, under the verification approval prompt of the electric energy approval unit, the specific problem ammeter can be quickly positioned, the ammeter is replaced, the searching time of an operator for the fault ammeter is reduced, the replacement work efficiency is improved, and the time verification of the ammeter is realized.
Drawings
FIG. 1 is a system block diagram of the present utility model;
FIG. 2 is a partial circuit diagram of the present utility model;
Fig. 3 is a circuit diagram of the power approval unit of the present utility model.
Detailed Description
Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a multiuser smart electric meter, includes the ammeter case, multiuser ammeter body and a plurality of branch household ammeter body, branch household ammeter body and multiuser ammeter body are all installed in the ammeter case, and connect through the wiring each other, branch household ammeter body is including installing electric energy metering unit, electric energy approval unit and the communication control unit in the ammeter case, the power input of electric energy metering unit connects external equipment, the signal output part of electric energy metering unit connects the signal input part of communication control unit; the electric energy metering unit is used for electric energy detection and metering, the electric energy approval unit is used for approving the accuracy of the electric energy metering unit, the communication control unit is used for acquiring and transmitting signals of the electric energy metering unit, the electric energy metering unit comprises an electric energy metering special chip U1 used for electric energy metering, a crystal oscillator Y1, a voltage transformer T1T1, a current transformer T3T3 and a voltage transformer T2T2, a pin XOUT and a pin XIN of the electric energy metering special chip U1 are connected with the crystal oscillator Y1, the electric energy metering special chip U1 is respectively connected with the voltage transformer T1, the current transformer T3 and the voltage transformer T2, the detailed circuit diagram is shown in fig. 2, the signal input end of the electric energy approval unit is connected with the crystal oscillator Y1, and the electric energy approval unit is used for detecting whether an oscillating signal of the crystal oscillator Y1 is abnormal;
The communication control unit comprises a communication chip U2, the signal input end of the communication chip U2 is connected with the signal output end of the special electric energy metering chip U1, the signal output end of the communication chip U2 is respectively connected with the input ends of the storage circuit, the calendar/clock display circuit, the infrared communication circuit and the communication port, under the control of the communication chip U2, the signal of the electric energy metering unit is output, the output of the electric energy metering result is completed by matching with the communication port, the infrared communication circuit and the calendar/clock display circuit, and the communication chip U2 adopts a micro-control chip of the DS89C430 model.
As shown in fig. 3, the electric energy approving unit includes a FET, a resistor R21, a resistor R22, a resistor R23, a resistor R24, an inductor L1, a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, and a power supply POW1, the crystal oscillator Y1 adopts a crystal oscillator with a frequency point of 4.096MHz, the FET adopts an N-channel FET with a model number of 2N3823, the triode Q1 and the triode Q2 each adopt an NPN triode with a model number of 2N3940, the electric energy metering special chip U1 adopts an electric energy metering special chip with a model number of CS5460A, wherein a gate of the FET is electrically connected with one end of the crystal oscillator Y1 and one end of the resistor R21, a source of the FET is electrically connected with the other end of the resistor R21, a cathode of the diode D1 and a pin 3 of the triode Q2, and a drain of the crystal oscillator Y1 are electrically connected with the other end of the capacitor C8 and the pin 1 of the inductor L1;
One end of the resistor R22 is electrically connected with the capacitor C8, and the other end of the resistor R22 is electrically connected with the anode of the diode D1 and the pin 1 of the triode Q1 at the same time;
One end of the resistor R23 is electrically connected with the pin 2 of the inductor L1, the resistor R23 and one end of the power supply POW1 at the same time, and the other end of the resistor R23 is electrically connected with the pin 2 of the triode Q1;
pin 1 of triode Q2 is connected with pin 3 of triode Q1 electrically, its pin 2 is connected with the negative pole of the luminescent diode D2 electrically, pin 3 of triode Q2 connects the other end of power supply POW1 electrically;
The other end of the light emitting diode D2 is electrically connected with a resistor R24;
The oscillator is formed by the N-channel field effect transistor FET and the crystal oscillator Y1, the triode Q1 and the triode Q2 are connected to form a composite detection amplifier to drive the light emitting diode D2, as shown in fig. 3, when the crystal oscillator Y1 is in a good state, the capacitor of an oscillation signal of the crystal oscillator is coupled to the input end of the triode Q1, the light emitting diode D2 is driven to emit light after amplification, when the crystal oscillator Y1 is in an abnormal state, the light emitting diode D2 does not emit light, the working state of the crystal oscillator Y1 is obtained through the condition of the light emitting diode D2, so that the measurement accuracy of an electric energy metering unit is monitored in real time, the measurement accuracy of the electric energy consumption is ensured, and then the electric meter corresponding to the problem can be quickly positioned under the verification approval prompt of the electric energy approval unit, so that the time of workers for searching faults is shortened, the efficiency of the replacement work is improved, the time verification of the electric meter is realized, and the waste caused by the regular replacement of the electric meter is reduced.
The specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
Claims (8)
1. The multi-user intelligent ammeter comprises an ammeter box, a multi-user ammeter body and a plurality of household ammeter bodies, wherein the household ammeter bodies and the multi-user ammeter bodies are all arranged in the ammeter box and are connected with each other through wiring, and the multi-user intelligent ammeter is characterized in that the household ammeter bodies comprise an electric energy metering unit, an electric energy approval unit and a communication control unit, wherein the electric energy metering unit, the electric energy approval unit and the communication control unit are arranged in the ammeter box; the electric quantity input end of the electric energy metering unit is connected with external equipment, and the signal output end of the electric energy metering unit is connected with the signal input end of the communication control unit;
The electric energy metering unit comprises an electric energy metering special chip U1 for electric energy metering, a pin XOUT and a pin XIN of the electric energy metering special chip U1 are connected with the crystal oscillator Y1, a signal input end of the electric energy approving unit is connected with the crystal oscillator Y1, and the electric energy approving unit is used for detecting whether an oscillating signal of the crystal oscillator Y1 is abnormal or not.
2. The multi-user intelligent ammeter according to claim 1, wherein the electric energy metering unit further comprises a voltage transformer T1, a current transformer T3 and a voltage transformer T2, wherein input ends of the voltage transformer T1, the current transformer T3 and the voltage transformer T2 are respectively connected with external equipment through power lines, and output ends of the voltage transformer T1, the current transformer T3 and the voltage transformer T2 are respectively connected with input ends of the electric energy metering special chip U1.
3. The multiuser smart meter according to claim 1, wherein the electric energy approval unit comprises a FET, a resistor R21, a resistor R22, a resistor R23, a resistor R24, an inductor L1, a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, and a power supply POW1, wherein a gate of the FET is electrically connected to one end of the crystal oscillator Y1 and one end of the resistor R21 at the same time, a source thereof is electrically connected to the other end of the resistor R21, a cathode of the diode D1, and a pin 3 of the triode Q2 at the same time, and a drain thereof is electrically connected to the other end of the crystal oscillator Y1, a capacitor C8, and a pin 1 of the inductor L1 at the same time;
One end of the resistor R22 is electrically connected with the capacitor C8, and the other end of the resistor R22 is electrically connected with the anode of the diode D1 and the pin 1 of the triode Q1 at the same time;
One end of the resistor R23 is electrically connected with the pin 2 of the inductor L1, the resistor R23 and one end of the power supply POW1 at the same time, and the other end of the resistor R23 is electrically connected with the pin 2 of the triode Q1;
pin 1 of triode Q2 is connected with pin 3 of triode Q1 electrically, its pin 2 is connected with the negative pole of the luminescent diode D2 electrically, pin 3 of triode Q2 connects the other end of power supply POW1 electrically;
the other end of the light emitting diode D2 is electrically connected to the resistor R24.
4. A multi-user smart meter according to claim 3, wherein the FET is a 2N 3823N-channel FET, and the transistors Q1 and Q2 are NPN transistors of 2N 3940.
5. The multi-user smart meter according to claim 1, wherein the power metering dedicated chip U1 is a CS5460A type power metering dedicated chip.
6. The multi-user intelligent ammeter according to claim 1, wherein the crystal oscillator Y1 is a crystal oscillator with a frequency point of 4.096 MHz.
7. The multi-user intelligent ammeter according to claim 1, wherein the communication control unit comprises a communication chip U2, a signal input end of the communication chip U2 is connected with a signal output end of a special electric energy metering chip U1, and a signal output end of the communication chip U2 is respectively connected with input ends of a storage circuit, a calendar/clock display circuit, an infrared communication circuit and a communication port.
8. The multi-user smart meter of claim 7, wherein the communication chip U2 is a DS89C430 micro-control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322754028.1U CN220961667U (en) | 2023-10-13 | 2023-10-13 | Multi-user intelligent ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322754028.1U CN220961667U (en) | 2023-10-13 | 2023-10-13 | Multi-user intelligent ammeter |
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| Publication Number | Publication Date |
|---|---|
| CN220961667U true CN220961667U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322754028.1U Active CN220961667U (en) | 2023-10-13 | 2023-10-13 | Multi-user intelligent ammeter |
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| CN (1) | CN220961667U (en) |
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2023
- 2023-10-13 CN CN202322754028.1U patent/CN220961667U/en active Active
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