CN205749669U - A kind of three-phase remote bill control intelligent electric energy meter - Google Patents
A kind of three-phase remote bill control intelligent electric energy meter Download PDFInfo
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- CN205749669U CN205749669U CN201521045577.0U CN201521045577U CN205749669U CN 205749669 U CN205749669 U CN 205749669U CN 201521045577 U CN201521045577 U CN 201521045577U CN 205749669 U CN205749669 U CN 205749669U
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Abstract
The utility model discloses a kind of three-phase remote bill control intelligent electric energy meter, including housing and CPU, electric energy metrical processing unit, voltage sampling unit, current sampling unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit and the power subsystem being arranged in housing；Voltage sampling unit and current sampling unit are connected with electric energy metrical processing unit respectively, electric energy metrical processing unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit are connected with CPU respectively, and power subsystem is connected with CPU and electric energy metrical processing unit to provide electric power support respectively.The advantage that this utility model has that integrated level is high, multiple functional, stable performance, compact conformation, precision are high, low in energy consumption.
Description
Technical field
This utility model relates to a kind of electronic instrument, especially relates to a kind of for Regulation and the Triphase control-rate intelligent electric energy meter with electric energy acquisition and radio communication function.
Background technology
In power system, particularly in In the distribution system of low voltage, the most non-linear, the use of impact load, bring challenge to the electric energy metrical of power system.And along with industrial expansion and the progress of science and technology, the accurately metering of industry electric energy is had higher requirement by enterprise's productive technology management, energy-saving and cost-reducing is one of the outstanding feature of modern industry progress, improve electric energy effective rate of utilization, the quality of power supply is carried out comprehensive monitoring and administers the problem having become in the urgent need to address.
Realizing the comprehensive control to the quality of power supply, be necessary for realizing on-line analysis and the monitoring in real time of active power, effectively utilize level with understand electric energy, the electric power monitoring instrument as electric power management system ingredient plays vital effect wherein.For improving work efficiency and automatic management level, RS485 technology, power line carrier technology are applied in terms of automatic copying electric meter at present, but effect in a particular application is unsatisfactory, it is mainly manifested in: wiring very complicated, investment is big, costly, and often occur going offline, transmission delay phenomenon, have impact on work efficiency and management level, as can be seen here, research and develop that a kind of transmission speed is fast, stable performance, low cost, the intelligent electric energy meter of three-phase remote bill control that range is wide can obtain preferable economic benefit in this area.
Utility model content
The purpose of this utility model is to provide a kind of three-phase remote bill control intelligent electric energy meter, the advantage that it has that integrated level is high, multiple functional, stable performance, compact conformation, precision are high, low in energy consumption, this utility model is provided with radio communication function, can preferably adapt to the requirement of modern power network operational management.
For solve three-phase remote bill control electric energy meter of the prior art its most easily occur going offline, the phenomenon such as transmission delay, the problem that have impact on stability and certainty of measurement, a kind of three-phase remote bill control intelligent electric energy meter that this utility model provides, including housing and CPU, electric energy metrical processing unit, voltage sampling unit, current sampling unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit and the power subsystem being arranged in housing；Wherein, described voltage sampling unit and current sampling unit are connected with electric energy metrical processing unit respectively, electric energy metrical processing unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit are connected with CPU respectively, and power subsystem is connected with CPU and electric energy metrical processing unit to provide electric power support respectively；
Described voltage sampling unit and current sampling unit are respectively used to the voltage and current in observation circuit, and the voltage and current analog quantity monitored is sent to electric energy metrical processing unit；Voltage and current analog quantity is processed and the voltage and current digital quantity obtained is sent to CPU by electric energy metrical processing unit, voltage and current digital quantity is sent to LCD display unit to show electrical measurement data by CPU, and described electrical measurement data is the digital quantity of voltage and current；
Described RS485 interface unit, setting up respectively have bi-directional exchanges of information passage between GPRS wireless communication unit and CPU, CPU is carried out data exchange by RXD485 and TXD485 and RS485 interface unit and by RS485 bus, electrical measurement data is sent to main website；GPRS wireless communication unit sets up wireless connections with transmission electrical measurement data and response external efficient communication order for CPU and external equipment；Data storage cell sets up information exchanging channel to carry out data access by I2C twin wire universal serial bus and CPU, and keystroke interface unit is used for arranging input parameter to complete key display function.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, between described electric energy metrical processing unit and CPU, use SPI full duplex synchronous communication bus mode to set up connection.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, also include the infrared communication unit being connected with CPU, and between infrared communication unit and CPU, set up bi-directional exchanges of information passage, infrared communication unit is connected to carry out the transmission of electrical measurement data, and response external efficient communication order for CPU with external smart equipment or IR remote controller foundation.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, also includes the pulse test unit being connected with CPU, and between pulse test unit and CPU, set up bi-directional exchanges of information passage, pulse test unit exports for power test pulse.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, also include that the testing circuit unit being connected with CPU, described testing circuit unit are used for detecting the operation of illegal game clock lid.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, also include the multi-functional output unit being connected with CPU, described multi-functional output unit is connected to export electrical measurement data for setting up with external equipment.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, described voltage sampling unit is made up of electric resistance partial pressure networking and filter circuit；Described current sampling unit is made up of current transformer, electric capacity and resistance.
Further, this utility model one three-phase remote bill control intelligent electric energy meter, wherein, the device parameters that described each unit uses is: CPU uses STMicw Electronics STM32F101VE, electric energy metrical processing unit uses torch power ATT7022, LCD display unit liquid crystal display drive circuit uses BU97950FUV, RS485 interface unit to use MAX13085, and data storage cell uses FM24CL64, FM24C256A and MX25L3208D.
This utility model one three-phase remote bill control intelligent electric energy meter is compared with prior art, have the advantage that (1) this utility model is by arranging CPU, electric energy metrical processing unit, voltage sampling unit, current sampling unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit and power subsystem, and make voltage sampling unit and current sampling unit be connected with electric energy metrical processing unit respectively, make electric energy metrical processing unit, LCD display unit, RS485 interface unit, GPRS wireless communication unit, data storage cell, keystroke interface unit is connected with CPU respectively.Allow in actual applications set up respectively between GPRS wireless communication unit and CPU and have bi-directional exchanges of information passage, make CPU can set up wireless connections with transmission electrical measurement data and response external efficient communication order with external equipment by GPRS wireless communication unit, it is achieved that radio communication function and automatic data logging purpose.This utility model takes full advantage of the wireless IP provided in GPRS wireless network, user only needs installing terminal module can realize the data that real-time Transmission bottom hardware is gathered, technical purpose can be realized without special wiring, there is the advantage that investment is little, expense is low, income is big, scope of checking meter is wide, and on GPRS service network platform, build telecommunication network electric energy meter, transmitting procedure does not haves go offline, the fault such as transmission delay, it is real-time, gather data in time, and can remotely control.Being GPRS public network platform additionally, due to utilize, the transmission quantity of system is relatively big, and transmission speed have also been obtained enhancing.(2) this utility model has that integrated level is high, low in energy consumption, precision is high, stable performance, is that the actual state managed according to electrical network and industrial automation is designed, can be widely applied to Regulation system, and the scope of application is relatively wide, and practicality is stronger.
This utility model one three-phase remote bill control intelligent electric energy meter is described in further detail by illustrated embodiment below in conjunction with the accompanying drawings:
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 2 is the connection diagram of the CPU in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 3 is the connection diagram of the electric energy metrical processing unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 4 is the connection diagram of the voltage sampling unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 5 is the connection diagram of the current sampling unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 6 is the connection diagram of the LCD display unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 7 is the connection diagram of the RS485 interface unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 8 is the connection diagram of the GPRS wireless communication unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Fig. 9 is the connection diagram of the data storage cell in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Figure 10 is the connection diagram of the keystroke interface unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Figure 11 is the connection diagram of the power subsystem in a kind of three-phase remote bill control intelligent electric energy meter of this utility model；
Figure 12 is the connection diagram of the infrared communication unit in a kind of three-phase remote bill control intelligent electric energy meter of this utility model.
Detailed description of the invention
The detailed description of the invention of a kind of three-phase remote bill control intelligent electric energy meter of this utility model as shown in Figures 1 to 12, including housing and CPU 1, electric energy metrical processing unit 2, voltage sampling unit 3, current sampling unit 4, LCD display unit 5, RS485 interface unit 6, GPRS wireless communication unit 7, data storage cell 8, keystroke interface unit 9 and the power subsystem 10 being arranged in housing；Voltage sampling unit 3 and current sampling unit 4 is made to be connected with electric energy metrical processing unit 2 respectively, make electric energy metrical processing unit 2, LCD display unit 5, RS485 interface unit 6, GPRS wireless communication unit 7, data storage cell 8, keystroke interface unit 9 be connected with CPU 1 respectively, and make power subsystem 10 be connected to provide electric power support with CPU 1 and electric energy metrical processing unit 2 respectively.
In actual application, by the voltage and current in voltage sampling unit 3 and current sampling unit 4 observation circuit respectively, and the voltage and current analog quantity monitored is sent to electric energy metrical processing unit 2；By electric energy metrical processing unit 2 voltage and current analog quantity processed and the voltage and current digital quantity obtained is sent to CPU 1, then by CPU 1, voltage and current digital quantity being sent to LCD display unit 5 to show electrical measurement data.Electrical measurement data refers to the digital quantity of voltage and current.
Allow and set up bi-directional exchanges of information passage respectively between RS485 interface unit 6, GPRS wireless communication unit 7 and CPU 1, make CPU 1 carry out data exchange by RXD485 and TXD485 with RS485 interface unit 6 and by RS485 bus, electrical measurement data is sent to main website；GPRS wireless communication unit 7 sets up wireless connections with the single measurement data of transmission and response external efficient communication order for CPU 1 and external equipment；Data storage cell 8 is allowed to set up information exchanging channel to carry out data access by I2C twin wire universal serial bus and CPU 1；Keystroke interface unit 9 is used for arranging input parameter to complete key display function.
Pass through arrangement above, allow set up respectively between GPRS wireless communication unit 7 and CPU 1 and have bi-directional exchanges of information passage, make CPU can set up wireless connections with transmission electrical measurement data and response external efficient communication order with external equipment by GPRS wireless communication unit 7, it is achieved that radio communication function and automatic data logging purpose.This utility model takes full advantage of the wireless IP provided in GPRS wireless network, user only needs installing terminal module can realize the data that real-time Transmission bottom hardware is gathered, technical purpose can be realized without special wiring, there is the advantage that investment is little, expense is low, income is big, scope of checking meter is wide, and on GPRS service network platform, build telecommunication network electric energy meter, transmitting procedure does not haves go offline, the fault such as transmission delay, its real-time is stronger, data can be gathered in time, and can remotely control.Being GPRS public network platform due to utilize, system has bigger transmission quantity, and transmission speed have also been obtained enhancing.
This utility model in actual applications, allows and uses SPI full duplex synchronous communication bus mode to set up connection between electric energy metrical processing unit 2 and CPU 1.
As prioritization scheme, this detailed description of the invention is also provided with the infrared communication unit 11 being connected with CPU 1, and between infrared communication unit 11 and CPU 1, set up bi-directional exchanges of information passage, make CPU 1 can set up with external smart equipment or IR remote controller by infrared communication unit 11 to be connected, to carry out the transmission of electrical measurement data, response external efficient communication order.
As prioritization scheme, this detailed description of the invention is also provided with the pulse test unit 12 being connected with CPU 1, and between pulse test unit 12 and CPU 1, set up bi-directional exchanges of information passage, power test pulse output can be carried out, to strengthen function and the scope of application by pulse test unit 12.It is also provided with the testing circuit unit 13 being connected with CPU 1, illegal game clock lid can be detected by testing circuit unit 13 and operate, to strengthen the safety of operation of power networks.And it is provided with the multi-functional output unit 14 being connected with CPU 1, in order to can set up with more external equipment and be connected, complete electrical measurement data output purpose.
It should be noted that the voltage sampling unit 3 in this utility model is made up of electric resistance partial pressure networking and filter circuit；Current sampling unit 4 is made up of current transformer, electric capacity and resistance.The device parameters that each unit uses is: CPU 1 uses STMicw Electronics STM32F101VE, electric energy metrical processing unit 2 uses torch power ATT7022, LCD display unit 5 liquid crystal display drive circuit uses BU97950FUV, RS485 interface unit 6 uses MAX13085, data storage cell 8 to use FM24CL64, FM24C256A and MX25L3208D.
STMicw Electronics's STM32F101VE microprocessor that this utility model uses, is 32 8-digit microcontrollers based on ARM, and its integrated level is high, aboundresources；The electric energy metrical used is processed as torch power ATT7022, it it is a kind of high-precision three-phase electric energy the special metering IC, it is applicable to phase three-wire three and three-phase and four-line application, each phase can be measured and close the active power of phase, reactive power, apparent energy, meritorious energy and quadergy, the parameters such as each phase current, voltage effective value, power factor, phase angle, frequency can also be measured simultaneously, can fully meet the demand of three-phase compound tariff multifunctional electric energy meter.All measuring parameter parameters can be read by SPI interface.This utility model one three-phase remote bill control intelligent electric energy meter, there is timesharing, split-phase, point to and multi tariff accurate measurement exchange combination meritorious, active energy, accurate measurement combination reactive energy and all quadrants reactive energy, the forward and reverse maximum demand of accurate measurement and the function of four rate maximum demands, can regularly freeze, instantaneous freeze, agreement is freezed multiple energy data and is freezed record, there is decompression, defluidization, programming, reset, switching on and the multiple logout such as uncap, and energy monitoring voltage in real time, electric current, the multinomial dynamic parameter such as apparent energy and power factor (PF), and by infrared, RS485, the communication mode response external efficient communication orders such as GPRS, complete electric energy meter data reading system and parameter.
When this utility model one three-phase remote bill control intelligent electric energy meter normally works, first voltage, electric current are carried out high-accuracy sampling, amplification, process through computation chip precision again and be converted into digital signal, according to preliminary setting parameter, the data of acquisition are carried out electric energy add up and maximum demand process, data are stored and responds extraneous effective communication need and carry out data output, and carry out display process through coprocessor；Electric energy metrical processes the energy data produced and delivers to CPU 1 and produce electrical energy pulse, energy data is stored by CPU 1, sends as required to outut devices such as LCD display unit 5, RS485 interface unit 6, GPRS wireless communication unit 7, infrared communication interface unit 11.
Above example is only the description carrying out preferred implementation of the present utility model; not this utility model is claimed the restriction that scope is carried out; on the premise of without departing from this utility model design principle and spirit; the various forms of deformation that this area engineers and technicians make according to the technical solution of the utility model, all should fall in protection domain determined by this utility model claims.
Claims (8)
1. a three-phase remote bill control intelligent electric energy meter, including housing and CPU (1), electric energy metrical processing unit (2), voltage sampling unit (3), current sampling unit (4), LCD display unit (5), RS485 interface unit (6), GPRS wireless communication unit (7), data storage cell (8), keystroke interface unit (9) and the power subsystem (10) being arranged in housing；It is characterized in that, described voltage sampling unit (3) and current sampling unit (4) are connected with electric energy metrical processing unit (2) respectively, electric energy metrical processing unit (2), LCD display unit (5), RS485 interface unit (6), GPRS wireless communication unit (7), data storage cell (8), keystroke interface unit (9) are connected with CPU (1) respectively, and power subsystem (10) is connected with CPU (1) and electric energy metrical processing unit (2) to provide electric power support respectively；
The voltage and current that described voltage sampling unit (3) and current sampling unit (4) are respectively used in observation circuit, and the voltage and current analog quantity monitored is sent to electric energy metrical processing unit (2)；Voltage and current analog quantity is processed and the voltage and current digital quantity obtained is sent to CPU (1) by electric energy metrical processing unit (2), voltage and current digital quantity is sent to LCD display unit (5) to show electrical measurement data by CPU (1), and described electrical measurement data is the digital quantity of voltage and current；
Setting up respectively between described RS485 interface unit (6), GPRS wireless communication unit (7) and CPU (1) and have bi-directional exchanges of information passage, CPU (1) is carried out data exchange by RXD485 and TXD485 with RS485 interface unit (6) and by RS485 bus, electrical measurement data is sent to main website；GPRS wireless communication unit (7) sets up wireless connections with transmission electrical measurement data and response external efficient communication order for CPU (1) and external equipment；Data storage cell (8) sets up information exchanging channel to carry out data access by I2C twin wire universal serial bus and CPU (1), and keystroke interface unit (9) is used for arranging input parameter to complete key display function.
2. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterised in that use SPI full duplex synchronous communication bus mode to set up connection between described electric energy metrical processing unit (2) and CPU (1).
3. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterized in that, also include the infrared communication unit (11) being connected with CPU (1), and set up bi-directional exchanges of information passage between infrared communication unit (11) and CPU (1), infrared communication unit (11) is connected to carry out the transmission of electrical measurement data, and response external efficient communication order for CPU (1) with external smart equipment or IR remote controller foundation.
4. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterized in that, also include the pulse test unit (12) being connected with CPU (1), and between pulse test unit (12) and CPU (1), set up bi-directional exchanges of information passage, pulse test unit (12) exports for power test pulse.
5. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterized in that: also include the testing circuit unit (13) being connected with CPU (1), described testing circuit unit (13) is used for detecting the operation of illegal game clock lid.
6. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterized in that: also include the multi-functional output unit (14) being connected with CPU (1), described multi-functional output unit (14) is connected to export electrical measurement data for setting up with external equipment.
7. according to a kind of three-phase remote bill control intelligent electric energy meter described in claim 1, it is characterised in that described voltage sampling unit (3) is made up of electric resistance partial pressure networking and filter circuit；Described current sampling unit (4) is made up of current transformer, electric capacity and resistance.
8. according to a kind of three-phase remote bill control intelligent electric energy meter described in any one of claim 1-7, it is characterized in that, the device parameters that described each unit uses is: CPU (1) uses STMicw Electronics STM32F101VE, electric energy metrical processing unit (2) uses torch power ATT7022, LCD display unit (5) liquid crystal display drive circuit uses BU97950FUV, RS485 interface unit (6) uses MAX13085, and data storage cell (8) uses FM24CL64, FM24C256A and MX25L3208D.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045577.0U CN205749669U (en) | 2015-12-15 | 2015-12-15 | A kind of three-phase remote bill control intelligent electric energy meter |
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| CN201521045577.0U CN205749669U (en) | 2015-12-15 | 2015-12-15 | A kind of three-phase remote bill control intelligent electric energy meter |
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| CN205749669U true CN205749669U (en) | 2016-11-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504502A (en) * | 2016-12-06 | 2017-03-15 | 国网山东省电力公司鄄城县供电公司 | The method of intelligent electric meter, intelligent electric meter management system and centralized automatic meter-reading |
| CN107064625A (en) * | 2017-06-06 | 2017-08-18 | 宁波恒力达科技有限公司 | A kind of three-phase four-wire high voltage energy table and measuring method |
| CN110829590A (en) * | 2019-10-10 | 2020-02-21 | 广州炫通电气科技有限公司 | Intelligent monitoring system, method, platform and storage medium for transformer area line loss |
-
2015
- 2015-12-15 CN CN201521045577.0U patent/CN205749669U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504502A (en) * | 2016-12-06 | 2017-03-15 | 国网山东省电力公司鄄城县供电公司 | The method of intelligent electric meter, intelligent electric meter management system and centralized automatic meter-reading |
| CN107064625A (en) * | 2017-06-06 | 2017-08-18 | 宁波恒力达科技有限公司 | A kind of three-phase four-wire high voltage energy table and measuring method |
| CN110829590A (en) * | 2019-10-10 | 2020-02-21 | 广州炫通电气科技有限公司 | Intelligent monitoring system, method, platform and storage medium for transformer area line loss |
| CN110829590B (en) * | 2019-10-10 | 2023-12-26 | 广州炫通电气科技有限公司 | Intelligent monitoring system, method, platform and storage medium for line loss of transformer area |
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