CN211348421U - Electric energy power consumption monitoring system - Google Patents
Electric energy power consumption monitoring system Download PDFInfo
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- CN211348421U CN211348421U CN201921486925.6U CN201921486925U CN211348421U CN 211348421 U CN211348421 U CN 211348421U CN 201921486925 U CN201921486925 U CN 201921486925U CN 211348421 U CN211348421 U CN 211348421U
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- communication modem
- consumption monitoring
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Abstract
The utility model discloses an electric energy power consumption monitoring system, which comprises an electric energy meter, wherein the electric energy meter is provided with an input end connected with 220V mains supply, an output end connected with an introduced household electric wire, and a test end used for detecting current or voltage flow; the test end is connected with the controller through a lead; the controller is connected with a communication modem for transmitting signals; the controller is connected with the monitoring center through the communication modem for signal transmission, and the communication modem periodically transmits data processed by the controller to the corresponding monitoring center. The utility model can not only accurately read the power consumption of the user, but also remotely transmit the power consumption of the user to a monitoring center; the electric power monitoring personnel are not required to perform meter reading in each month and by each family, and the workload of the electric power monitoring personnel is reduced.
Description
Technical Field
The utility model relates to a consumption monitoring system especially relates to an electric energy consumption monitoring system.
Background
At present, there are many places where mechanical and electronic electric measuring devices are used to monitor electricity, and power supply companies need to periodically assign electricity monitoring personnel to collect and manage meter reading information of electricity meter reading devices equipped in residential buildings for billing, troubleshooting, and analysis. Because urban areas are densely populated, the work load of reading the meter from each power monitoring personnel to each home is quite large.
At present, in some areas, the internet is used as a transmission technology and is combined into an electric power monitoring system, and the data measured by a point measuring device is transmitted to a monitoring center through the monitoring system of the internet for data statistics, so that the workload of electric power monitoring personnel is reduced; however, the schemes proposed so far all need to replace the original watt-hour meters, so that the use cost of the power monitoring system is high; the cost of the internet is also high and many areas are temporarily not practical.
Disclosure of Invention
In view of the above technical problems, the present technical solution provides an electric energy power consumption monitoring system, which can effectively solve the above problems.
The utility model discloses a following technical scheme realizes:
an electric energy power consumption monitoring system comprises an electric measuring device, wherein the electric measuring device is provided with an input end connected with 220V mains supply, an output end connected with a lead-in household electric wire, and a testing end used for detecting current or voltage flow; the test ends are connected through a wire controller; the controller is connected with a communication modem for transmitting signals; the controller is connected with the monitoring center through the communication modem for signal transmission, and the communication modem periodically transmits data processed by the controller to the corresponding monitoring center.
Furthermore, the communication modem comprises a signal transmitting device connected with the controller for transmitting signals and a signal receiving device connected with the monitoring center for receiving signals.
Furthermore, the signal transmitting device and the signal receiving device adopt external wireless transmission modules.
Furthermore, the wireless transmission module can adopt a GPRS/5G wireless transmission chip.
Further, the wireless transmission module may also adopt any other wireless transmission chip for wireless transmission.
Further, the communication modem is always in a dormant state and is only in an operating state when data is transmitted.
Furthermore, a signal processor is connected between the signal receiving device and the monitoring center.
Furthermore, the controller and the signal processor are both embedded microcontrollers.
Further, the controller can be connected with the testing ends of one or a plurality of electric measuring devices at the same time.
Furthermore, the controller and the signal processor are connected with a memory.
Furthermore, the output end of the electric measuring device is connected with the controller after passing through the voltage conversion circuit; the output end of the voltage conversion circuit is respectively connected with the controller and the communication modem to provide power for the controller and the communication modem.
Further, the voltage conversion circuit converts the 220V voltage into 5V or 3.3V voltage.
Further, the controller is connected with a standby power supply; the output end of the standby power supply is respectively connected with the controller and the communication modem; the power supply device is used for supplying power to the controller and the communication modem in case of unexpected power failure.
Further, the standby power supply adopts a small-sized durable battery, such as a lithium battery, a button battery and the like.
Furthermore, the electric measuring device adopts an electric energy meter.
Furthermore, the monitoring center adopts a display screen.
Furthermore, the monitoring center adopts an upper computer with a display screen.
Advantageous effects
The utility model provides a pair of electric energy consumption monitoring system compares with prior art, and it has following beneficial effect:
(1) according to the technical scheme, the pulse signals received from the test end are counted through the controller, and then the number of pulses obtained in real time is calculated through a predefined calculation algorithm in the controller, so that the real-time power consumption of the electric load is obtained; and finally, the controller is connected with the monitoring center through the communication modem to send the electricity consumption of the user to the monitoring center. The technical scheme is improved on the original watt-hour meter, a special electric power monitoring device does not need to be replaced, and the cost of the monitoring system is reduced.
(2) The external wireless transmission module is convenient for maintenance operation when the wireless transmission module is damaged in the later period and replacement operation when the wireless transmission module is updated in the later period.
(3) The voltage conversion circuit is designed to convert 220V alternating voltage into direct voltage used by the controller to supply power to the controller, so that the controller is protected; the standby power supply can supply power to the controller when power is cut off accidentally, and plays a role in protecting the controller and the communication modem. The damage to the controller caused by accidental power failure is avoided.
Drawings
Fig. 1 is a block diagram of the overall system of the present invention.
Fig. 2 is a schematic circuit diagram of the controller according to the present invention.
Fig. 3 is a schematic diagram of the medium voltage conversion circuit of the present invention.
Fig. 4 is a schematic diagram of the circuit connection of the processor according to the present invention.
Fig. 5 is a schematic diagram of the circuit connection of the bottom board of the processor according to the present invention.
Fig. 6 is a schematic view of the working flow of the controller of the present invention.
Fig. 7 is a schematic diagram of the working flow of the transmitter of the present invention.
Fig. 8 is a schematic diagram of the working flow of the receiver of the present invention.
Fig. 9 is a schematic diagram of the work flow of the processor of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. Under the prerequisite that does not deviate from the design concept of the utility model, the ordinary person in the art should fall into the protection scope of the utility model to the various changes and improvements that the technical scheme of the utility model made.
Example (b):
as shown in fig. 1 to 5, an electric energy consumption monitoring system includes an electric measuring device having an input terminal connected to a 220V commercial power, an output terminal connected to a lead-in household electric wire, and a test terminal for detecting a current or voltage flow; the test end is connected with the controller through a lead; the controller is connected with a communication modem for transmitting signals; the controller is connected with the monitoring center through the communication modem for signal transmission, and the communication modem periodically transmits data processed by the controller to the corresponding monitoring center.
A voltage conversion circuit is connected in parallel to the output end of the electric measuring device connected with the lead-in household electric wire; the input end of the voltage conversion circuit is connected with the output end of the electric measuring device and is directly connected with 220V voltage, and the voltage conversion circuit converts the 220V voltage into 3.3V voltage and then outputs the voltage; the output end of the voltage conversion circuit is respectively connected with the controller and the communication modem, and a 3.3V power supply is provided for the controller and the communication modem.
The controller is also connected with a standby power supply, and in the embodiment, the standby power supply adopts a button battery; the output end of the standby power supply is respectively connected with the controller and the communication modem and is used for supplying power to the controller and the communication modem when power is cut off accidentally.
The communication modem comprises a signal transmitting device connected with the controller for transmitting signals and a signal receiving device connected with the monitoring center for receiving signals; the signal transmitting device and the signal receiving device adopt external wireless transmission modules; the wireless transmission module can adopt a GPRS/5G wireless transmission chip or any other wireless transmission chip for wireless transmission.
A signal processor is connected between the signal receiving device and the monitoring center, and the monitoring center adopts a display screen or an upper computer with the display screen. In this embodiment, the signal processor is an embedded microcontroller, and the embedded microcontroller is a single chip microcomputer with a model number of CC 2530. The CC2530 single chip microcomputer is connected with an upper computer of the monitoring center through a USB serial port; in this embodiment, the monitoring center uses a computer with a display screen.
In this embodiment, the controller is an embedded microprocessor, and the embedded microcontroller is a single chip microcomputer with a model number of CC 2530.
In addition, on the basis of the present embodiment, the controller and the signal processor are both optionally connected to an input device, such as a keyboard or a key; and output devices, such as display screens or other visual presentation devices; and a memory or other external equipment can be connected.
In the embodiment, the embedded microprocessor adopted by the controller obtains the real-time power consumption of the time period through the conversion of the accumulated pulse number of the time period and the electric quantity consumption of the time period; the specific calculation formula is as follows:
and (4) time period electricity consumption is divided into time period accumulated pulse numbers and pulses/kilowatts.
The quantity of the pulse/kilowatt time period is set by various electric energy meters of different types, and the accumulated pulse number of the time period is obtained by counting the pulses generated by the electric energy meters through the controller; the pulse of the electric energy meter is obtained by the following formula; the specific formula is as follows:
wherein ViIs the voltage across the load, IiIs the current circulating through the load, Fs represents a period of time.
Those skilled in the art can easily understand through common general knowledge in the field that: the current conversion ratio introduces gain errors, especially K, during the calculation of power consumption due to normal variations of different transistor valuesvAnd KiTherefore, the calculated power consumption may be different from the actual power consumption. Therefore, the gain calibration constant Cg needs to be introduced in the algorithm to adjust the gain error, KvAnd KiThe variable gain calibration factor gain calibration constant Cg may be obtained from the following equation:
in theory, the constants Cg and C should have the same value. However, in practical applications, the two constants may have different values to reflect the actual calibration. At the extreme of the current measurement range, KiMay also differ slightly in value. Therefore, two different gain calibration constants need to be implemented in the calculation algorithm, one for the low end of the dynamic range and the other for the upper end.
The electric energy power consumption monitoring system according to the embodiment includes the following specific monitoring methods:
a) installing an electrical measuring device at the power supply, the electrical measuring device measuring a number of pulses representative of the amount of power consumed;
b) the controller counts pulse signals representing the consumed electric quantity obtained from the testing end through the connection with the testing end of the electric measuring device;
c) after the controller acquires the pulse signal, calculating the pulse signal value acquired from the electric measuring device in real time through a predefined calculation algorithm in the controller to acquire the real-time power consumption of the electric load; the specific workflow is shown in fig. 6;
d) after the controller calculates the power consumption of the electric load, the calculation result is sent to a corresponding monitoring center through the communication modem; the specific work flow is shown in FIGS. 7-8;
e) after receiving the data, the monitoring center records and stores the data; the specific workflow is as shown in fig. 9, and the operation is completed.
Claims (10)
1. An electric energy consumption monitoring system comprises an electric measuring device; the method is characterized in that: the electric measuring device is provided with an input end connected with 220V mains supply, an output end connected with a lead-in household electric wire, and a testing end for detecting current or voltage flow; the test end is connected with the controller through a lead; the controller is connected with a communication modem for transmitting signals; the controller is connected with the monitoring center through the communication modem for signal transmission, and the communication modem periodically transmits data processed by the controller to the corresponding monitoring center.
2. The electric energy consumption monitoring system according to claim 1, wherein: the communication modem comprises a signal transmitting device connected with the controller for transmitting signals and a signal receiving device connected with the monitoring center for receiving signals.
3. An electric energy consumption monitoring system according to claim 2, wherein: the signal transmitting device and the signal receiving device adopt external wireless transmission modules.
4. A power consumption monitoring system according to claim 3, wherein: the wireless transmission module can adopt a GPRS/5G wireless transmission chip.
5. A power consumption monitoring system according to claim 3, wherein: the wireless transmission module can also adopt any wireless transmission chip for wireless transmission except a GPRS/5G wireless transmission chip.
6. An electric energy consumption monitoring system according to claim 2, wherein: and a signal processor is connected between the signal receiving device and the monitoring center.
7. The electric energy consumption monitoring system according to claim 1, wherein: the output end of the electric measuring device is connected with the controller after passing through the voltage conversion circuit; the output end of the voltage conversion circuit is respectively connected with the controller and the communication modem to provide power for the controller and the communication modem.
8. An electric energy consumption monitoring system according to any one of claims 1 to 7, wherein: the controller is connected with a standby power supply; and the output end of the standby power supply is respectively connected with the controller and the communication modem.
9. An electric energy consumption monitoring system according to any one of claims 1 to 7, wherein: the monitoring center adopts a display screen.
10. An electric energy consumption monitoring system according to any one of claims 1 to 7, wherein: the monitoring center adopts an upper computer with a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921486925.6U CN211348421U (en) | 2019-09-09 | 2019-09-09 | Electric energy power consumption monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921486925.6U CN211348421U (en) | 2019-09-09 | 2019-09-09 | Electric energy power consumption monitoring system |
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| Publication Number | Publication Date |
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| CN211348421U true CN211348421U (en) | 2020-08-25 |
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| CN201921486925.6U Active CN211348421U (en) | 2019-09-09 | 2019-09-09 | Electric energy power consumption monitoring system |
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| CN (1) | CN211348421U (en) |
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2019
- 2019-09-09 CN CN201921486925.6U patent/CN211348421U/en active Active
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