CN109118743A - A kind of electrical energy measurement kilowatt meter reading-out system - Google Patents
A kind of electrical energy measurement kilowatt meter reading-out system Download PDFInfo
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- CN109118743A CN109118743A CN201811267484.0A CN201811267484A CN109118743A CN 109118743 A CN109118743 A CN 109118743A CN 201811267484 A CN201811267484 A CN 201811267484A CN 109118743 A CN109118743 A CN 109118743A
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
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Abstract
The present invention relates to power meter reading system technical fields, provide a kind of electrical energy measurement kilowatt meter reading-out system, including intelligent electric meter, Zigbee collector, concentrator and data center, intelligent electric meter for acquiring electrical energy parameter and the display of loaded line in real time；Zigbee collector receives the collected electrical energy parameter of intelligent electric meter, and electrical energy parameter is transferred to concentrator；Concentrator is used to receive the collected electrical energy parameter of each intelligent electric meter of Zigbee collector transmission, and the electrical energy parameter of several intelligent electric meters is uploaded to data center；Data center is used to carry out several concentrators collected electrical energy parameter statistics to summarize, form power information, to realize the monitoring to remote automatic meter reading and to kilowatt meter reading-out system all parts, meter reading speed is fast, reduce artificial participate in, the accuracy of meter reading efficiency and power consumption parameter is improved, the service life of kilowatt meter reading-out system is also further promoted.
Description
Technical field
The present invention relates to power meter reading system technical field, specially a kind of electrical energy measurement kilowatt meter reading-out system.
Background technique
Intelligent electric meter widely uses in smart grid, and intelligent electric meter mainly uses RS-485 communication interface to export ammeter
Power information, each ammeter are connect by twisted pair with ammeter data collector, and then each ammeter data collector collects company
It is connected to concentrated collection device, finally by the line transmissions such as GPRS or Ethernet, optical fiber to electricity meter-reading data center.
But the kilowatt meter reading-out system function of current intelligent electric meter is by a relatively simple, lacks for each of kilowatt meter reading-out system
The functions such as the detection of building block, and original communication modes meter reading is used, meter reading efficiency is lower, with current information high speed
The trend of development is runed counter to.
Summary of the invention
In order to overcome the defect of the prior art as indicated above, the present inventor has made intensive studies this, is paying
After a large amount of creative works, so as to complete the present invention.
Specifically, the technical problems to be solved by the present invention are: providing a kind of electrical energy measurement kilowatt meter reading-out system, it is intended to solve
In the prior art the kilowatt meter reading-out system function of intelligent electric meter is by a relatively simple, lacks each building block for kilowatt meter reading-out system
The functions such as detection, and original communication modes meter reading is used, meter reading efficiency is lower, the trend with current information high speed development
The technical issues of runing counter to.
In order to solve the above technical problems, the technical scheme is that
A kind of electrical energy measurement kilowatt meter reading-out system, including intelligent electric meter, Zigbee collector, concentrator and data center,
In:
The intelligent electric meter, the electrical energy parameter acquisition instructions sent for receiving the Zigbee collector, acquires in real time
Collected electrical energy parameter is fed back to the Zigbee collector by the electrical energy parameter of loaded line, while by collected electricity
Energy parameter after processing by being shown；
The Zigbee collector is wirelessly connected by Zigbee protocol and the intelligent electric meter, concentrator respectively, is used for
Electrical energy parameter acquisition instructions are generated according to pre-set electric energy acquisition event timing, and by the electrical energy parameter acquisition instructions of generation
It is sent to the intelligent electric meter, while receiving the collected electrical energy parameter of the intelligent electric meter, and electrical energy parameter is transferred to institute
State concentrator；
The concentrator is connect with the data center, each intelligence sent for receiving the Zigbee collector
The collected electrical energy parameter of ammeter, and the electrical energy parameter of several intelligent electric meters is uploaded to data center；
The data center, connect with concentrator described in several, for several collected electricity of concentrator
Energy parameter carries out statistics and summarizes, and forms power information.
As an improvement scheme, the intelligent electric meter include microcontroller, liquid crystal display, ic for energy metering,
Power supply and voltage current transformer, the power supply are connect with the microcontroller and ic for energy metering respectively,
The ic for energy metering is connect with the microcontroller and voltage current transformer respectively, the microcontroller and the liquid crystal
Display screen connection, in which:
The voltage current transformer, be arranged on the loaded line, connect with the ic for energy metering, be used for pair
The voltage and current parameter of the loaded line is acquired, and collected voltage and current parameter is passed to the electric energy
Metering circuit；
The ic for energy metering is connect with the microcontroller and power supply respectively, for according to the voltage electricity
Current transformer collected voltage and current parameter calculates the electrical energy parameter in the current preset period, and will be calculated
Electrical energy parameter is transferred to the microcontroller；
The microcontroller is connect with the liquid crystal display, for sending electrical energy parameter to the ic for energy metering
It is handled, the Zigbee collector is sent to by the Zigbee protocol, while carrying out by the liquid crystal display
Display；
The power supply is respectively the microcontroller and ic for energy metering power supply.
As an improvement scheme, the intelligent electric meter further includes a memory, the memory and the microcontroller
Device connection, the electrical energy parameter for receiving to the microcontroller store.
As an improvement scheme, the loaded line of the power supply and 220V connects；
The power supply includes reduction voltage circuit and Switching Power Supply, and the reduction voltage circuit is connect with the Switching Power Supply.
As an improvement scheme, the Switching Power Supply includes main control chip U1, the main control chip U1 be equipped with pin
BS, pin IN, pin SW, pin GND, pin SS, pin EN, pin COMP and pin FB；
It is connect after the route series diode D1 that the pin IN is drawn with the firewire of the loaded line, the load line
The zero curve on road is connect after being sequentially connected in series diode D4 and resistance R2 with the pin FB, and the diode D1 and the firewire access
Route between end is equipped with the first circuit node, and the route between the diode D4 and the resistance R2 is equipped with the second electricity
Circuit node is serially connected with diode D3 on the route between first circuit node and second circuit node；
Route between the diode D1 and the pin IN is equipped with tertiary circuit node, the tertiary circuit node
It is connect after the route series diode D2 of extraction with the zero curve incoming end；
Route between the tertiary circuit node and the pin IN is equipped with the 4th circuit node, the 4th circuit
It is grounded after the route serial capacitance C1 that node is drawn, the route between the 4th circuit node and the capacitor C1 is equipped with the
Five circuit nodes, the route that the 5th circuit node is drawn are connect with the pin GND；
Route between the second circuit node and the resistance R2 is equipped with the 6th circuit node, the 6th circuit
The route that node is drawn is connect after being sequentially connected in series diode D5, capacitor C2 with the pin BS, the pin BS and the capacitor
Route between C2 is equipped with the 7th circuit node, the connection that the 7th circuit node is drawn to the pin SW；
The route that the pin COMP is drawn be sequentially connected in series capacitor C4 and resistance R1 after be grounded, the resistance R1 with it is described
The 8th circuit node is equipped between ground terminal, the route between the capacitor C2 and diode D5 is equipped with the 9th circuit node,
The end+5V, the line between the inductance L1 and the end+5V are equipped with after the route tandem electric inductance L1 that 9th circuit node is drawn
Road is successively arranged the tenth circuit node, the 11st circuit node and the 12nd circuit node, the resistance R2 and the pin
Route between FB is equipped with the tenth three-circuit node, with described the after the route series resistor R3 that the tenth circuit node is drawn
Ten three-circuit nodes connect, and connect after the route serial capacitance C5 that the 11st circuit node is drawn with the 8th circuit node
It connects, is connect after the route serial capacitance C6 that the 12nd circuit node is drawn with the 8th circuit node；
It is grounded after the route serial capacitance C3 that the pin SS is drawn.
As an improvement scheme, the model MP1430DN of the main control chip.
As an improvement scheme, the reduction voltage circuit include the resistance R5 that is serially connected on the loaded line firewire and
Diode D6, the resistance R5 is close to the firewire incoming end；
Route between the resistance R5 and the diode D6 is equipped with the 14th circuit node, the 14th circuit
Loaded line zero line output end is connected to after the route series diode D7 that node is drawn；
The reduction voltage circuit further includes the diode D9 being serially connected on the loaded line zero curve；
Route between the zero curve incoming end and the diode D6 is equipped with the 15th circuit node, and the described 15th
The loaded line fire wire output end is connected to after the route series diode D8 that circuit node is drawn；
The 16th circuit node and the tenth are successively arranged on route between the diode D6 and the fire wire output end
Seven circuit nodes are successively arranged the 18th circuit node and on the route between the diode D7 and the zero line output end
19 circuit nodes, series diode D10 on the route between the 16th circuit node and the 18th circuit node,
Serial capacitance C22 on route between 17th circuit node and the 19th circuit node.
As an improvement scheme, be additionally provided with the electricity being connected in parallel with the resistance R5 on the firewire of the loaded line
Hold C7.
In embodiments of the present invention, electrical energy measurement kilowatt meter reading-out system include intelligent electric meter, Zigbee collector, concentrator and
Data center, intelligent electric meter are used to receive the electrical energy parameter acquisition instructions of Zigbee collector transmission, acquire loaded line in real time
Electrical energy parameter, collected electrical energy parameter is fed back into the Zigbee collector, while collected electrical energy parameter being led to
It is shown after crossing processing；Zigbee collector is wirelessly connected by Zigbee protocol with the intelligent electric meter, concentrator respectively
It connects, for generating electrical energy parameter acquisition instructions according to pre-set electric energy acquisition event timing, and by the electrical energy parameter of generation
Acquisition instructions are sent to the intelligent electric meter, while receiving the collected electrical energy parameter of the intelligent electric meter, and by electrical energy parameter
It is transferred to the concentrator；Concentrator is connect with the data center, for receiving each of the Zigbee collector transmission
The collected electrical energy parameter of intelligent electric meter, and the electrical energy parameter of several intelligent electric meters is uploaded to data center；The number
It is used to carry out several described concentrator collected electrical energy parameters statistics according to center to summarize, power information is formed, thus real
The now monitoring to remote automatic meter reading and to kilowatt meter reading-out system all parts, meter reading speed is fast, reduces artificial participation, improves meter reading effect
The accuracy of rate and power consumption parameter also further promotes the service life of kilowatt meter reading-out system.
Detailed description of the invention
Fig. 1 is the structural block diagram of electrical energy measurement kilowatt meter reading-out system provided by the invention；
Fig. 2 is the structural schematic diagram of intelligent electric meter provided by the invention；
Fig. 3 is the circuit diagram of Switching Power Supply provided by the invention；
Fig. 4 is the circuit diagram of reduction voltage circuit provided by the invention；
Wherein, 1- intelligent electric meter, 2-Zigbee collector, 3- concentrator, 4- data center, 5- microcontroller, 6- liquid crystal
Display screen, 7- ic for energy metering, 8- power supply, 9- voltage current transformer, 10- memory, the first circuit node of 11-,
12- second circuit node, 13- tertiary circuit node, the 4th circuit node of 14-, the 5th circuit node of 15-, the 6th circuit section of 16-
Point, the 7th circuit node of 17-, the 8th circuit node of 18-, the 9th circuit node of 19-, the tenth circuit node of 20-, 21- the 11st
Circuit node, the 12nd circuit node of 22-, the tenth three-circuit node of 23-, the 14th circuit node of 24-, the 15th circuit of 25-
Node, the 16th circuit node of 26-, the 17th circuit node of 27-, the 18th circuit node of 28-, the 19th circuit node of 29-.
Specific embodiment
Below with reference to specific embodiment, the present invention is further described.But the purposes and mesh of these exemplary embodiments
Be only used to enumerate the present invention, any type of any restriction not is constituted to real protection scope of the invention, it is more non-to incite somebody to action this
The protection scope of invention is confined to this.
The structural block diagram that Fig. 1 shows electrical energy measurement kilowatt meter reading-out system provided by the invention is only given in figure for ease of description
Part related to the embodiment of the present invention is gone out.
Electrical energy measurement kilowatt meter reading-out system includes intelligent electric meter 1, Zigbee collector 2, concentrator 3 and data center 4,
In:
Intelligent electric meter 1, the electrical energy parameter acquisition instructions sent for receiving the Zigbee collector 2, acquisition is negative in real time
Collected electrical energy parameter is fed back to the Zigbee collector 2 by the electrical energy parameter for carrying route, while by collected electric energy
Parameter after processing by being shown, wherein the terminal node of the intelligent electric meter 1 as wireless kilowatt meter reading-out system, it will be collected
User's energy data and information about power are transferred in ZigBee collector 2, while by the electricity consumption of the user and current system
Time showing is on liquid crystal display 6, main function are as follows: (1) regularly sends the energy data of user to collector 2；(2)
Whether out of touch with network oneself is judged, if not in a network, timing reconnects network；(3) concentrator 3 is received to send
Next instruction simultaneously does corresponding actions according to instruction；
Zigbee collector 2 is wirelessly connected by Zigbee protocol and the intelligent electric meter 1, concentrator 3 respectively, is used for
Electrical energy parameter acquisition instructions are generated according to pre-set electric energy acquisition event timing, and by the electrical energy parameter acquisition instructions of generation
It is sent to the intelligent electric meter 1, while receiving the collected electrical energy parameter of the intelligent electric meter 1, and electrical energy parameter is transferred to
The concentrator 3；
Concentrator 3 is connect with the data center 4, each intelligence electricity sent for receiving the Zigbee collector 2
The collected electrical energy parameter of table 1, and the electrical energy parameter of several intelligent electric meters 1 is uploaded to data center 4；
The data center 4, connect with concentrator 3 described in several, for collected several described concentrators 3
Electrical energy parameter carries out statistics and summarizes, and forms power information；
Wherein, as shown in Figure 1, a Zigbee collector 2 corresponds to several intelligent electric meters 1, if a concentrator 3 is corresponding
Dry Zigbee collector 2, several the corresponding concentrators 3 of data center 4, naturally it is also possible to cricoid system structure is used,
This is repeated no more.
In this embodiment, terminal node of the intelligent electric meter 1 as wireless kilowatt meter reading-out system, by collected user's electric energy number
It is transferred in ZigBee collector 2 according to information about power, while the electricity consumption of the user and current system time being shown
On display.Data in the event taken at regular intervals electric energy meter that ZigBee collector 2 is arranged according to system, pass through ZigBee-network
Reach concentrator 3, data can long-term preservation in collector 2.Concentrator 3 is equivalent to one in the kilowatt meter reading-out system that intelligent meter forms
A coordinator, the function of the node are to obtain the information about power of intelligent meter all in ZigBee-network and transmit information to small
The control data corporation in area, data can also save for a long time in concentrator 3.
In embodiments of the present invention, control data corporation can be overcharged automatically by the meter reading time interval or meter reading period of setting
The accumulative electric flux machine other information of a user's electric energy meter in concentrator 3, and have and read user's electric energy letter at any time in real time
Breath and the function that family electric energy is plagiarized according to address choosing；Data center 4 can also issue various orders, the letter of reading terminals node
Breath, such as operation information, terminal alarms information；After the data deposit database of 4 uploads received of data center, pass through net
It stands or wireless system is issued on the net.Staff can carry out data query by Ethernet, inquire each on ammeter
Kind data information, historical data, curve graph etc..Intelligent electric meter 1 can also be with active upload warning message.
In embodiments of the present invention, as shown in Fig. 2, intelligent electric meter 1 includes microcontroller 5, liquid crystal display 6, electric energy meter
Measure circuit 7, power supply 8 and voltage current transformer 9, the power supply 8 respectively with the microcontroller 5 and electric energy meter
It measures circuit 7 to connect, the ic for energy metering 7 is connect with the microcontroller 5 and voltage current transformer 9 respectively, described micro-
Controller 5 is connect with the liquid crystal display 6, in which:
The voltage current transformer 9 is arranged on the loaded line, connect, be used for the ic for energy metering 7
The voltage and current parameter of the loaded line is acquired, and collected voltage and current parameter is passed into the electricity
It can metering circuit 7；
The ic for energy metering 7 is connect with the microcontroller 5 and power supply 8 respectively, for according to the voltage
The collected voltage and current parameter of current transformer 9 calculates the electrical energy parameter in the current preset period, and will be calculated
Electrical energy parameter be transferred to the microcontroller 5；
The microcontroller 5 is connect with the liquid crystal display 6, for sending electric energy ginseng to the ic for energy metering 7
Number is handled, and is sent to the Zigbee collector 2 by the Zigbee protocol, while passing through the liquid crystal display 6
It is shown；
The power supply 8 is respectively that the microcontroller 5 and the ic for energy metering 7 are powered.
In this embodiment, intelligent electric meter 1 further includes a memory 10, and the memory 10 connects with the microcontroller 5
It connects, the electrical energy parameter for receiving to the microcontroller 5 stores.
Power supply 8 is connect with the loaded line of 220V；
The power supply 8 includes reduction voltage circuit and Switching Power Supply, and the reduction voltage circuit is connect with the Switching Power Supply；
In this embodiment, as shown in figure 3, the Switching Power Supply includes main control chip U1, the main control chip U1 is equipped with
Pin BS, pin IN, pin SW, pin GND, pin SS, pin EN, pin COMP and pin FB；
It is connect after the route series diode D1 that the pin IN is drawn with the firewire of the loaded line, the load line
The zero curve on road is connect after being sequentially connected in series diode D4 and resistance R2 with the pin FB, and the diode D1 and the firewire access
Route between end is equipped with the first circuit node 11, and the route between the diode D4 and the resistance R2 is equipped with second
Circuit node 12 is serially connected with diode D3 on the route between first circuit node 11 and second circuit node 12；
Route between the diode D1 and the pin IN is equipped with tertiary circuit node 13, the tertiary circuit section
It is connect after the route series diode D2 that point 13 is drawn with the zero curve incoming end；
Route between the tertiary circuit node 13 and the pin IN is equipped with the 4th circuit node 14, and the described 4th
It is grounded after the route serial capacitance C1 that circuit node 14 is drawn, the route between the 4th circuit node 14 and the capacitor C1
It is equipped with the 5th circuit node 15, the route that the 5th circuit node 15 is drawn is connect with the pin GND；
Route between the second circuit node 12 and the resistance R2 is equipped with the 6th circuit node 16, and the described 6th
The route that circuit node 16 is drawn is connect after being sequentially connected in series diode D5, capacitor C2 with the pin BS, the pin BS and institute
It states route between capacitor C2 and is equipped with the 7th circuit node 17, the connection that the 7th circuit node 17 is drawn is to described
Pin SW；
The route that the pin COMP is drawn be sequentially connected in series capacitor C4 and resistance R1 after be grounded, the resistance R1 with it is described
The 8th circuit node 18 is equipped between ground terminal, the route between the capacitor C2 and diode D5 is equipped with the 9th circuit node
Be equipped with the end+5V after 19, the route tandem electric inductance L1 that the 9th circuit node 19 is drawn, the inductance L1 and the end+5V it
Between route on be successively arranged the tenth circuit node 20, the 11st circuit node 21 and the 12nd circuit node 22, the resistance
Route between R2 and the pin FB is equipped with the tenth three-circuit node 23, the route concatenation that the tenth circuit node 20 is drawn
It is connect after resistance R3 with the tenth three-circuit node 23, after the route serial capacitance C5 that the 11st circuit node 21 is drawn
It is connect with the 8th circuit node 18, with the described 8th after the route serial capacitance C6 that the 12nd circuit node 22 is drawn
Circuit node 18 connects；
It is grounded after the route serial capacitance C3 that the pin SS is drawn.
In this embodiment, the model MP1430DN of the main control chip.
Wherein, above-mentioned only give a kind of takes electricity to power for all parts of intelligent electric meter 1 by 220V alternating current
Situation, naturally it is also possible to be powered using battery, details are not described herein；
When taking electricity to power using alternating current, input voltage range is 6-24V, normal voltage 12V, running current
For 80mA；When input voltage reduces, input current maximum is no more than 200mA；There are two output voltages, decibel be 5VDC and
3.3VDC.Rectifier bridge is made of 4 1N4007, is responsible for the polarity of conversion input voltage, to guarantee feedback network perception output electricity
Source guarantees the output voltage stabilization in 5V with the work of PMW mode by adjusting the duty ratio of input power.
In embodiments of the present invention, the decompression mode that reduction voltage circuit uses is capacitor step-down, this decompression mode power supply
It is small in size, quiet, reliable, high-efficient, for the 50HZ alternating current that frequency reduces, the heat energy loss of the generation on capacitor
Very little；
As shown in figure 4, reduction voltage circuit includes the resistance R5 being serially connected on the loaded line firewire and diode D6, it is described
Resistance R5 is close to the firewire incoming end；
Route between the resistance R5 and the diode D6 is equipped with the 14th circuit node 24, the 14th electricity
Loaded line zero line output end is connected to after the route series diode D7 that circuit node 24 is drawn；
The reduction voltage circuit further includes the diode D9 being serially connected on the loaded line zero curve；
Route between the zero curve incoming end and the diode D6 is equipped with the 15th circuit node 25, and the described tenth
The loaded line fire wire output end is connected to after the route series diode D8 that five circuit nodes 25 are drawn；
The 16th circuit node 26 and are successively arranged on route between the diode D6 and the fire wire output end
17 circuit nodes 27 are successively arranged the 18th circuit node on the route between the diode D7 and the zero line output end
28 and the 19th circuit node 29 is gone here and there on the route between the 16th circuit node 26 and the 18th circuit node 28
Connect diode D10, serial capacitance on the route between the 17th circuit node 27 and the 19th circuit node 29
C22；
The capacitor C7 being connected in parallel with the resistance R5 is additionally provided on the firewire of the loaded line.
In embodiments of the present invention, microcontroller 5 has selected the opposite integrated level of Chipcon company high, cheap
Wireless microcontroller 5CC2430, controller module and radio receiving transmitting module have been incorporated on one single chip, simplify design electricity
Road reduces system cost.
In embodiments of the present invention, ic for energy metering 7 uses the dedicated integrated chip of individual event electric energy measurement (IC), built-in
Analog-digital converter (A/D) and digital signal processor (DSP).Electric energy computation chip carries out voltage, electric current by certain rate
Sampling, and it is converted into digital quantity.DSP is to voltage, amp product and various other operations.The input terminal of electric energy computation chip
There are voltage transformer, current transformer to complete voltage, current sampling respectively, the voltage and current signal after sampling is converted by multiplier
The pulse train for indicating electricity consumption is how many is generated after U/f is converted for power signal, high-frequency electrical energy metrical pulse therein represents
Moment active power, exports after optical coupling isolator, is used as verification pulse, can be used as metering with the light emitting diode that optocoupler is mutually gone here and there
Instruction.High-frequency impulse becomes low-frequency electrical energy pulse after 16 frequency dividings and driving, and active energy, institute can be calculated by adding up this pulse
Microprocessor is given after light-coupled isolation with this pulse, carries out electrical energy measurement.It is provided with inside electric energy measurement special integrated chip
Antisubmarine dynamic logic sum is opposed electricity-stealing function.The metering chip of use is a high-precision single-phase electrical energy measurement core of ADI company of the U.S.
Piece ADE7755.
The present invention can be achieved to implement meter reading, real-time monitoring, the functions such as real-time control, can detect that kilowatt meter recorder destruction and
Illegally use etc. situations；It is fast with exceeded speed, user of service is few, meter reading accuracy has obtained large increase, and meter reading efficiency is high.
Pre paid functionality can be achieved, after user supplements with money, data are downloaded by network remote, and it avoids user's directly contact table and has, thus
Improve the service life of equipment.
It should be appreciated that the purposes of these embodiments is merely to illustrate the present invention and is not intended to limit protection model of the invention
It encloses.In addition, it should also be understood that, after reading the technical contents of the present invention, those skilled in the art can make the present invention each
Kind change, modification and/or variation, all these equivalent forms equally fall within guarantor defined by the application the appended claims
Within the scope of shield.
Claims (8)
1. a kind of electrical energy measurement kilowatt meter reading-out system, which is characterized in that including intelligent electric meter, Zigbee collector, concentrator and number
According to center, in which:
The intelligent electric meter, the electrical energy parameter acquisition instructions sent for receiving the Zigbee collector, in real time acquisition load
Collected electrical energy parameter is fed back to the Zigbee collector, while collected electric energy being joined by the electrical energy parameter of route
Number after processing by being shown；
The Zigbee collector is wirelessly connected by Zigbee protocol and the intelligent electric meter, concentrator respectively, is used for basis
Pre-set electric energy acquisition event timing generates electrical energy parameter acquisition instructions, and the electrical energy parameter acquisition instructions of generation are sent
To the intelligent electric meter, while the collected electrical energy parameter of the intelligent electric meter is received, and electrical energy parameter is transferred to the collection
Middle device；
The concentrator is connect with the data center, each intelligent electric meter sent for receiving the Zigbee collector
Collected electrical energy parameter, and the electrical energy parameter of several intelligent electric meters is uploaded to data center；
The data center, connect with concentrator described in several, for several collected electric energy ginsengs of concentrator
Number carries out statistics and summarizes, and forms power information.
2. electrical energy measurement kilowatt meter reading-out system according to claim 1, which is characterized in that the intelligent electric meter includes microcontroller
Device, liquid crystal display, ic for energy metering, power supply and voltage current transformer, the power supply respectively with it is described
Microcontroller is connected with ic for energy metering, the ic for energy metering respectively with the microcontroller and voltage current transformer
Connection, the microcontroller are connect with the liquid crystal display, in which:
The voltage current transformer is arranged on the loaded line, connect with the ic for energy metering, for described
The voltage and current parameter of loaded line is acquired, and collected voltage and current parameter is passed to the electrical energy measurement
Circuit；
The ic for energy metering is connect with the microcontroller and power supply respectively, for mutual according to the voltage and current
The collected voltage and current parameter of sensor calculates the electrical energy parameter in the current preset period, and the electric energy that will be calculated
Parameter is transferred to the microcontroller；
The microcontroller is connect with the liquid crystal display, is carried out for sending electrical energy parameter to the ic for energy metering
Processing, is sent to the Zigbee collector by the Zigbee protocol, while being shown by the liquid crystal display；
The power supply is respectively the microcontroller and ic for energy metering power supply.
3. electrical energy measurement kilowatt meter reading-out system according to claim 2, which is characterized in that the intelligent electric meter further includes a storage
Device, the memory are connect with the microcontroller, and the electrical energy parameter for receiving to the microcontroller stores.
4. electrical energy measurement kilowatt meter reading-out system according to claim 3, which is characterized in that the power supply and 220V's is described
Loaded line connection；
The power supply includes reduction voltage circuit and Switching Power Supply, and the reduction voltage circuit is connect with the Switching Power Supply.
5. electrical energy measurement kilowatt meter reading-out system according to claim 4, which is characterized in that the Switching Power Supply includes main control chip
U1, the main control chip U1 be equipped with pin BS, pin IN, pin SW, pin GND, pin SS, pin EN, pin COMP and
Pin FB；
It is connect after the route series diode D1 that the pin IN is drawn with the firewire of the loaded line, the loaded line
Zero curve is connect after being sequentially connected in series diode D4 and resistance R2 with the pin FB, the diode D1 and the firewire incoming end it
Between route be equipped with the first circuit node, route between the diode D4 and the resistance R2 is equipped with second circuit section
Point is serially connected with diode D3 on the route between first circuit node and second circuit node；
Route between the diode D1 and the pin IN is equipped with tertiary circuit node, and the tertiary circuit node is drawn
Route series diode D2 after connect with the zero curve incoming end；
Route between the tertiary circuit node and the pin IN is equipped with the 4th circuit node, the 4th circuit node
It is grounded after the route serial capacitance C1 of extraction, the route between the 4th circuit node and the capacitor C1 is equipped with the 5th electricity
Circuit node, the route that the 5th circuit node is drawn are connect with the pin GND；
Route between the second circuit node and the resistance R2 is equipped with the 6th circuit node, the 6th circuit node
The route of extraction is connect after being sequentially connected in series diode D5, capacitor C2 with the pin BS, the pin BS and the capacitor C2 it
Between route be equipped with the 7th circuit node, the connection that the 7th circuit node is drawn to the pin SW；
The route that the pin COMP is drawn be sequentially connected in series capacitor C4 and resistance R1 after be grounded, the resistance R1 and the ground connection
The 8th circuit node is equipped between end, the route between the capacitor C2 and diode D5 is equipped with the 9th circuit node, described
Equipped with the end+5V after the route tandem electric inductance L1 that 9th circuit node is drawn, on the route between the inductance L1 and the end+5V
Be successively arranged the tenth circuit node, the 11st circuit node and the 12nd circuit node, the resistance R2 and the pin FB it
Between route be equipped with the tenth three-circuit node, with the described 13rd after the route series resistor R3 that the tenth circuit node is drawn
Circuit node connects, and connect after the route serial capacitance C5 that the 11st circuit node is drawn with the 8th circuit node,
It is connect after the route serial capacitance C6 that 12nd circuit node is drawn with the 8th circuit node；
It is grounded after the route serial capacitance C3 that the pin SS is drawn.
6. electrical energy measurement kilowatt meter reading-out system according to claim 5, which is characterized in that the model of the main control chip
MP1430DN。
7. electrical energy measurement kilowatt meter reading-out system according to claim 5, which is characterized in that the reduction voltage circuit includes being serially connected in institute
The resistance R5 and diode D6 on loaded line firewire are stated, the resistance R5 is close to the firewire incoming end；
Route between the resistance R5 and the diode D6 is equipped with the 14th circuit node, the 14th circuit node
Loaded line zero line output end is connected to after the route series diode D7 of extraction；
The reduction voltage circuit further includes the diode D9 being serially connected on the loaded line zero curve；
Route between the zero curve incoming end and the diode D6 is equipped with the 15th circuit node, the 15th circuit
The loaded line fire wire output end is connected to after the route series diode D8 that node is drawn；
The 16th circuit node and the 17th electricity are successively arranged on route between the diode D6 and the fire wire output end
Circuit node is successively arranged the 18th circuit node and the 19th on the route between the diode D7 and the zero line output end
Circuit node, series diode D10 on the route between the 16th circuit node and the 18th circuit node are described
Serial capacitance C22 on route between 17th circuit node and the 19th circuit node.
8. electrical energy measurement kilowatt meter reading-out system according to claim 7, which is characterized in that also set on the firewire of the loaded line
There is the capacitor C7 being connected in parallel with the resistance R5.
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| CN201811267484.0A CN109118743A (en) | 2018-10-29 | 2018-10-29 | A kind of electrical energy measurement kilowatt meter reading-out system |
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| CN201811267484.0A CN109118743A (en) | 2018-10-29 | 2018-10-29 | A kind of electrical energy measurement kilowatt meter reading-out system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110850356A (en) * | 2019-11-21 | 2020-02-28 | 国网山东省电力公司昌邑市供电公司 | Diagnostic intelligent electric energy meter data system and platform |
| CN111122967A (en) * | 2019-12-31 | 2020-05-08 | 国网山东省电力公司临沂供电公司 | Data acquisition method for electric power metering equipment |
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