CN219715610U - Electric power instrument with extension communication interface - Google Patents
Electric power instrument with extension communication interface Download PDFInfo
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- CN219715610U CN219715610U CN202223435194.7U CN202223435194U CN219715610U CN 219715610 U CN219715610 U CN 219715610U CN 202223435194 U CN202223435194 U CN 202223435194U CN 219715610 U CN219715610 U CN 219715610U
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- 238000004891 communication Methods 0.000 title claims abstract description 46
- 230000005611 electricity Effects 0.000 claims 3
- 238000005259 measurement Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 238000012544 monitoring process Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model relates to a power instrument with an expansion communication interface, which comprises a three-phase voltage and current analog input circuit, a metering chip, an MCU chip, an expansion module interface X1, an expansion communication interface X2, a communication module, a switching value input module, a relay output module, a clock chip RTC, a display, a key module and a power module, wherein the three-phase voltage and current analog input circuit is electrically connected with the MCU chip through the metering chip, the expansion module interface X1 and the expansion communication interface X2 are both electrically connected with the MCU chip, the expansion module interface X1 is used for electrically connecting a temperature module, a first analog input module or a first communication module, the expansion communication interface X2 is used for electrically connecting a second analog input module or a second communication module, the power module supplies power for the MCU chip, and the communication module, the switching value input module, the relay output module, the clock chip RTC, the display and the key module are all electrically connected with the MCU chip.
Description
Technical Field
The utility model relates to the technical field of electric power meters, in particular to an electric power meter with an extended communication interface.
Background
The traditional industrial boiler industry always has the technical equipment lag, and the economic operation level is not high. The boiler equipment system is intelligent by using the interconnection technology. Through the cloud platform, a boiler user can easily complete remote monitoring of boiler data, acquire boiler efficiency and operation cost in real time, acquire expert optimization suggestions, and furthest improve the using effect of the boiler. The electric boiler is clean and environment-friendly, high in heat efficiency, intelligent in operation and quiet in work, and is welcomed by more and more enterprises. The electric boiler has the defects of high operation cost and easy occurrence of fire. The current monitoring platform data of the electric boiler are respectively obtained by the temperature monitoring module, the flow rate monitoring module and the electric energy measuring module, and then energy consumption analysis is carried out according to the obtained information. This analysis method is difficult to achieve real-time accurate analysis. In addition, it is inconvenient for the field operator to acquire real-time energy consumption information.
In order to meet the requirement, an electric power instrument with an extended communication interface needs to be designed, and data of a boiler are rapidly acquired through the extended communication interface to analyze energy consumption of the boiler.
Disclosure of Invention
The utility model provides a power meter with an extended communication interface, which aims at the problems and the defects existing in the prior art.
The utility model solves the technical problems by the following technical proposal:
the utility model provides a power instrument with an extended communication interface, which is characterized by comprising a three-phase voltage and current analog input circuit, a metering chip, an MCU chip, an extended module interface X1, an extended communication interface X2, a communication module, a switching value input module, a relay output module, a clock chip RTC, a display, a key module and a power module, wherein the three-phase voltage and current analog input circuit is electrically connected with the MCU chip through the metering chip, the extended module interface X1 and the extended communication interface X2 are both electrically connected with the MCU chip, the extended module interface X1 is used for electrically connecting a temperature module, a first analog input module or a first communication module, the extended communication interface X2 is used for electrically connecting a second analog input module or a second communication module, the power module supplies power to the MCU chip, and the communication module, the switching value input module, the relay output module, the clock chip, the display and the key module are all electrically connected with the MCU chip.
According to the electric power instrument, the data of the boiler are rapidly acquired through the expansion communication interface, the operation of the boiler is monitored, the energy consumption analysis of the boiler is carried out, the MCU chip obtains the voltage, the current, the power, the electric energy data, the water inlet temperature value, the water outlet temperature value and the flow rate of the boiler in real time, the required theoretical electric energy value is obtained according to the water inlet temperature value, the water outlet temperature value and the flow rate, the ratio of the theoretical electric energy value to the actual electric energy value is calculated and output, the alarm is not given when the ratio is normal, and the alarm is given when the ratio is abnormal.
Drawings
FIG. 1 is a block diagram of a power meter with an extended communication interface;
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the embodiment provides a power meter with an extended communication interface, which includes a three-phase voltage and current analog input circuit, a metering chip RN7302, an MCU chip, an extended module interface X1, an extended communication interface X2, a communication module, a switching value input module, a relay output module, a clock chip RTC, an LCD display, a key module, and a power module, wherein the three-phase voltage and current analog input circuit is electrically connected with the MCU chip through the metering chip, the extended module interface X1 and the extended communication interface X2 are both electrically connected with the MCU chip, the extended module interface X1 is used for electrically connecting a temperature module, a first analog input module, or a first communication module, the extended communication interface X2 is used for electrically connecting a second analog input module or a second communication module, the power module supplies power to the MCU chip, and the communication module, the switching value input module, the relay output module, the clock chip RTC, the LCD display, and the key module are all electrically connected with the MCU chip.
The MCU chip is used for automatically identifying the type of the expansion module through the expansion module interface X1. Such as: when the expansion module is a temperature module, the 2 paths PT100 temperature sensors of the temperature module are used for detecting the water inlet temperature value and the water outlet temperature value of the boiler, and the MCU chip is used for acquiring the water inlet temperature value and the water outlet temperature value through the expansion module interface X1 and the temperature module; when the expansion module is a first analog input module, 2 paths of 4-20mA temperature sensors of the boiler are connected to the first analog input module, and the MCU chip is used for acquiring a water inlet temperature value and a water outlet temperature value through the expansion module interface X1 and the first analog input module; when the expansion module is a first communication module, the MCU chip is used for acquiring a water inlet temperature value and a water outlet temperature value from external temperature measurement equipment of the boiler through the expansion module interface X1 and the first communication module.
The MCU chip is used for automatically identifying the type of the expansion module through the expansion module interface X2. Such as: when the expansion module is a second analog input module, a 4-20mA flow rate sensor of the boiler is connected to the second analog input module, and the MCU chip is used for acquiring the flow rate through the expansion module interface X2 and the second analog input module; when the expansion module is the second communication module, the MCU chip is used for acquiring the flow rate from external flow rate measuring equipment of the boiler through the expansion module interface X2 and the second communication module.
The metering chip RN7302 is used for sampling the voltage and current of the three-phase voltage and current analog input circuit in real time and transmitting the sampled voltage and current to the MCU chip, and the MCU chip is used for obtaining the sampled voltage and current in real time and calculating the actual power and the actual electric energy value based on the voltage and current.
The MCU chip is used for obtaining voltage, current, power and electric energy data of the boiler in real time, calculating a required theoretical electric energy value according to a water inlet temperature value, a water outlet temperature value and a flow rate, calculating and outputting a ratio of the theoretical electric energy value to the actual electric energy value, giving no alarm when the ratio is normal, and giving an alarm when the ratio is abnormal.
The MCU chip is used for monitoring the obtained real-time water inlet temperature value, and not giving an alarm when the real-time water inlet temperature value is in a set water inlet temperature range, and giving an alarm when the real-time water inlet temperature value is lower than the lower limit value of the set water inlet temperature range and giving an alarm when the water inlet temperature value is higher than the upper limit value of the set water inlet temperature range;
the MCU chip is used for monitoring the obtained real-time water outlet temperature value, giving no alarm when the real-time water outlet temperature value is in a set water outlet temperature range, giving an alarm when the real-time water outlet temperature value is lower than the lower limit value of the set water outlet temperature range and giving out alarm information when the water outlet temperature value is lower than the upper limit value of the set water outlet temperature range, and giving out alarm when the water outlet temperature value is higher than the upper limit value of the set water outlet temperature range;
the MCU chip is used for monitoring the obtained real-time flow rate, and not giving an alarm when the real-time flow rate is in a set flow rate range, and giving an alarm when the real-time flow rate is lower than the lower limit value of the set flow rate range and giving an alarm when the real-time flow rate is higher than the upper limit value of the set flow rate range.
The MCU chip is used for monitoring the obtained real-time voltage, giving no alarm when the real-time voltage is in a set voltage range, giving an alarm when the real-time voltage is lower than the lower limit value of the set voltage range and giving out alarm information of too low voltage, and giving out alarm when the real-time voltage is higher than the upper limit value of the set voltage range;
the MCU chip is used for monitoring the obtained real-time current, and not giving an alarm when the real-time current is in a set current range, and giving an alarm when the real-time current is lower than the lower limit value of the set current range and giving an alarm when the current is lower than the upper limit value of the set current range, and giving an alarm when the real-time current is higher than the upper limit value of the set current range.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (3)
1. The utility model provides a power instrument with extension communication interface, its characterized in that includes three-phase voltage current analog input circuit, measurement chip, MCU chip, extension module interface X1, extension communication interface X2, communication module, switching value input module, relay output module, clock chip RTC, display, button module and power module, three-phase voltage current analog input circuit is connected with MCU chip electricity through the measurement chip, extension module interface X1 and extension communication interface X2 are all connected with MCU chip electricity, extension module interface X1 is used for electrically connecting temperature module, first analog input module or first communication module, extension communication interface X2 is used for electrically connecting second analog input module or second communication module, power module is the MCU chip power supply, communication module, RTC, switching value input module, relay output module, clock chip, display, button module all are connected with MCU chip electricity.
2. The power meter with extended communication interface according to claim 1, wherein the metering chip employs a metering chip RN7302.
3. The power meter with extended communication interface of claim 1, wherein the display is an LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223435194.7U CN219715610U (en) | 2022-12-21 | 2022-12-21 | Electric power instrument with extension communication interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223435194.7U CN219715610U (en) | 2022-12-21 | 2022-12-21 | Electric power instrument with extension communication interface |
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| Publication Number | Publication Date |
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| CN219715610U true CN219715610U (en) | 2023-09-19 |
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| CN202223435194.7U Active CN219715610U (en) | 2022-12-21 | 2022-12-21 | Electric power instrument with extension communication interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115840077A (en) * | 2022-12-21 | 2023-03-24 | 江苏斯菲尔电气股份有限公司 | Multifunctional electric power instrument with heating system energy efficiency management analysis function |
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2022
- 2022-12-21 CN CN202223435194.7U patent/CN219715610U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115840077A (en) * | 2022-12-21 | 2023-03-24 | 江苏斯菲尔电气股份有限公司 | Multifunctional electric power instrument with heating system energy efficiency management analysis function |
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