CN106097588B - A kind of single-phase cost-control intelligent ammeter - Google Patents
A kind of single-phase cost-control intelligent ammeter Download PDFInfo
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- CN106097588B CN106097588B CN201610416016.XA CN201610416016A CN106097588B CN 106097588 B CN106097588 B CN 106097588B CN 201610416016 A CN201610416016 A CN 201610416016A CN 106097588 B CN106097588 B CN 106097588B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/10—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with alarm or warning devices, e.g. indicating the interrupting of the supply
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Abstract
The invention discloses a kind of single-phase cost-control intelligent ammeters, the ammeter includes shell, display screen, button, card slot, pin access port and fingerprint acquisition device, the display location is in the top of shell, middle position above display screen is additionally provided with indicator light, the pin access port is located at below shell, fingerprint identification module inside fingerprint acquisition device connection, the button include ten digital buttons and ACK button, cancel button and four direction button.The internal structure of the ammeter includes microcontroller, metering units, storage unit, power supply unit, alarm unit, display screen, carrier communication unit, relay control unit, 485 communication units, clock unit, key-press input unit, safety certification unit and anti-theft electric unit.The intelligent electric meter has many advantages, such as that vdiverse in function, intelligence degree is high.
Description
Technical field
The present invention relates to electrotechnical instrument and meter industry electrical energy measurement field more particularly to a kind of single-phase cost-control intelligent electricity
Table.
Background technology
Specially-used measuring instrument of the ammeter as electric power users electricity consumption experienced from motor meter to full electronic ammeter
Development, wherein full electronic ammeter functionally again experienced ordinary electronic formula electric energy meter, multi-rate meter, prepayment it is power-consuming
The developing stage such as energy table, multifunctional electric energy meter.There are certain drawbacks for existing electric energy meter：It having a single function, degree of intelligence is not high,
Precision is low, takes control pattern and super part way is single, data reliability is not high, inconvenient to use.
Therefore, the existing technology needs to be improved and developed.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of single-phase charge-controlled intelligence
Energy ammeter, it is intended to solve the problems, such as that existing capability is single, degree of intelligence is not high.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of single-phase cost-control intelligent ammeter structural schematic diagram, the ammeter include shell, display screen, button, card slot, pin
Access port and fingerprint acquisition device, middle position of the display location above the top of shell, display screen are additionally provided with finger
Show that lamp, the pin access port are located at below shell, the fingerprint identification module inside fingerprint acquisition device connection, the button packet
Include ten digital buttons and ACK button, cancel button and four direction button.
The internal structure of the ammeter includes microcontroller, metering units, storage unit, power supply unit, alarm unit, display
Unit, carrier communication unit, relay control unit, 485 communication units, clock unit, key-press input unit, safety certification list
Member and anti-theft electric unit.
The microcontroller uses 78F0526 singlechip chips, and the metering units are by computation chip ADE7755 and periphery electricity
Road forms, and metering units are connected with current sampling unit and voltage sampling unit, current sampling unit and voltage sampling unit
Signal output end connects the signal input part of metering units；The voltage sampling unit formula resistor voltage divider network, the electric current are adopted
Sample unit includes copper manganese current divider and current transformer；The metering units have the function of time-sharing measurement, can be with time-sharing measurement
Point, peak, flat, the paddy period electricity；The power supply unit uses lithium battery, and the power supply unit connects alarm unit, institute
Fault alarm can be realized by stating alarm unit, and send out sound-light alarm automatically when alarm unit detects that supply voltage is less than 3V
Signal；The display screen is LCD liquid crystal display screen, can show the data such as electricity, voltage, electric current, power factor, while can pass through
485 communication units or carrier communication unit realize meter reading, that is, realize three kinds of different meter reading methods；Under normal usage,
Indicator light is to be always on state, and magnetic card is can be inserted into card slot, can be shown on display screen the time, the date, current electricity consumption, it is current
Remaining sum in use of deducting fees and card；When magnetic card is inserted into card slot, user need to press fingerprint simultaneously, and fingerprint is acquired by fingerprint acquisition device
Fingerprint identification module is transmitted to after image, the fingerprint is identified in fingerprint identification module, if it does, then magnetic card can be from card slot
Interior automatic spring, if it does not match, will appear prompt message on display screen, and the system fingerprint input information can only malfunction 4
It is secondary, it is more than number, warning message can be transmitted to microcontroller by fingerprint identification module, and microcontroller receives and processes after the information by reporting
Alert unit sends out alarm command, and system is locked, which can not work normally, and could restore just after need to carrying out software unlock
Often；The carrier communication unit realizes electric energy meter and Electricity Department using existing power transmission and distribution power line network as transmission medium
The networking of the long-range electricity-selling system of door；The relay control unit can be automatically switched off in subscriber arrearage or overload, when
Order of operating a switch is sent by long-range electricity-selling system when subscriber arrearage, after order is operated a switch in ammeter successful reception, the display screen will be shown
Show that " operating a switch " character blinking prompts, relay control unit driving relay is operated a switch；After operating a switch successfully, " operating a switch " character no longer dodges
It sparkles and keeps showing；After user supplements with money, long-range electricity-selling system is retransmited to allow to close a floodgate and be ordered, and is ordered when ammeter is properly received
Afterwards, display screen shows that " operating a switch " character will disappear at this time, and relay control unit drives relay to close a floodgate；The storage unit is adopted
With eeprom memory, it can prevent energy data from disappearing after accident power-off；The clock unit is with temperature compensation function
Clock circuit, output frequency 1Hz, clock accuracy≤0.4s/d；The safety certification unit uses embedded safety module,
It includes kernel algorithm unit, and the kernel algorithm unit is connected with algorithm coprocessor, randomizer, RAM memory
And timer, for preventing unauthorized people from operating, to ensure the safety of data transmission；The anti-theft electric unit includes
Current sampling circuit, microcontroller periodically reads and compares the value of firewire and neutral line current sampling, if the two current samplings are poor
Value selects the channel that current channel larger in two electric currents is measured as current electric quantity more than the threshold value set, microcontroller, together
When by alarm lamp unit output sound and light alarm signal instruction stealing state occur；
The operating mode of the expense control intelligent electric meter includes local charge control pattern and remote bill control pattern, and can receive and take control
Mode switching signal switches between both of which, takes control mode switching signal by preset in single-phase cost-control intelligent ammeter
Switching time triggers, and the preset switching time is configured by the host computer of electricity-selling system, once single-phase cost-control intelligent is electric
When timing in table reaches preset switching time, will according to switch it is current take control pattern, judgement obtains switching letter
Number it is local charge control pattern switching to remote bill control pattern or remote bill control pattern switching to local charge control pattern.
A kind of single-phase cost-control intelligent ammeter provided by the present invention has technique effect beneficial below：
1, remote pre-payment and meter reading and the flexible switching of local charge control pattern and remote bill control pattern can be achieved, make
Preferably meet electrical energy measurement and clearing demand；
2, use safety certification and fingerprint recognition, data it is safe；
3, LCD liquid crystal display screen can show the data such as electricity, voltage, electric current, power factor, while can pass through 485 communications
Unit or carrier communication unit realize meter reading, that is, realize three kinds of different meter reading methods；
4, fault alarm can be achieved and low battery alarm increases ammeter reliability of operation convenient for management；
5, anti-theft electric unit can contain common power stealing mode, achieve the purpose that prevent power stealing.
Description of the drawings
Fig. 1 is a kind of single-phase cost-control intelligent ammeter structural schematic diagram provided by the invention；
Fig. 2 is a kind of single-phase cost-control intelligent ammeter internal structure schematic diagram provided by the invention.
Specific implementation mode
The present invention provides a kind of single-phase cost-control intelligent ammeter, to keep the objectives, technical solutions, and advantages of the present invention more clear
Chu defines, and the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.It should be appreciated that tool described herein
Body embodiment is only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is a kind of single-phase cost-control intelligent ammeter structural schematic diagram of the present invention, as shown, the ammeter includes shell
1, display screen 2, button 3, card slot 4, pin access port 5 and fingerprint acquisition device 6, the display screen 2 are located at the top of shell 1,
The middle position of 2 top of display screen is additionally provided with indicator light 7, and the pin access port 5 is located at 1 lower section of shell, fingerprint collecting dress
The fingerprint identification module inside 6 connections is set, the button 3 includes ten digital buttons and ACK button, cancel button and four
A arrow button, the button 3 connect internal key-press input unit 17.
Fig. 2 is a kind of single-phase cost-control intelligent ammeter internal circuit configuration schematic diagram of the present invention, as shown, the ammeter
Internal circuit configuration include microcontroller 8, metering units 9, storage unit 10, power supply unit 11, alarm unit 12, display unit
18, carrier communication unit 13, relay control unit 14,485 communication units 15, clock unit 16, key-press input unit 17, peace
Full authentication unit 19 and anti-theft electric unit 20.
The microcontroller 8 uses 78F0526 singlechip chips, and the metering units 9 are by computation chip ADE7755 and periphery
Circuit forms, and metering units 9 are connected with current sampling unit and voltage sampling unit, current sampling unit and voltage sampling unit
Signal output end connection metering units 9 signal input part；The voltage sampling unit formula resistor voltage divider network, the electric current
Sampling unit includes copper manganese current divider and current transformer；The metering units 9 have the function of time-sharing measurement, can be in terms of timesharing
Measure point, peak, flat, the paddy period electricity；The power supply unit 11 uses lithium battery, and the connection alarm of the power supply unit 11 is single
Member 12, the alarm unit 12 can realize fault alarm, and automatic when alarm unit 12 detects that supply voltage is less than 3V
Send out sound and light alarm signal；The display screen 2 is LCD liquid crystal display screen, can show the number such as electricity, voltage, electric current, power factor
According to, while can realize meter reading by 485 communication units 15 or carrier communication unit 13, that is, realize three kinds of different meter reading methods；
Under normal usage, indicator light is to be always on state, and magnetic card is can be inserted into card slot, can be shown on display screen 2 time, the date,
Remaining sum in current electricity consumption, current deducted fees use and card；When magnetic card is inserted into card slot, user need to press fingerprint simultaneously, pass through
Fingerprint acquisition device 6 is transmitted to fingerprint identification module after acquiring fingerprint image, and the fingerprint is identified in fingerprint identification module, such as
Fruit matches, then magnetic card can out of card slot automatic spring, if it does not match, will appear prompt message on display screen 2, and the system
Fingerprint input information can only malfunction 4 times, be more than number, and warning message can be transmitted to microcontroller 8, microcontroller by fingerprint identification module
8 receive and process and send out alarm command by alarm unit 12 after the information, and system is locked, which can not work normally,
It could restore normal after need to carrying out software unlock；The carrier communication unit 13 using existing power transmission and distribution power line network as
Transmission medium realizes the networking of the long-range electricity-selling system of electric energy meter and power department；The relay control unit 14 can with
It is automatically switched off when family arrearage or overload, order of operating a switch is sent by long-range electricity-selling system when subscriber arrearage, when ammeter success
Reception is operated a switch after order, and the display screen will show that " operating a switch " character blinking prompt, relay control unit 14 drive relay
It operates a switch；After operating a switch successfully, " operating a switch " character no longer flickers and keeps showing；After user supplements with money, long-range electricity-selling system retransmits
Allow to close a floodgate and order, after ammeter, which is properly received, orders, display screen shows that " operating a switch " character will disappear at this time, and relay control is single
Member 14 drives relay to close a floodgate；The storage unit 10 uses eeprom memory, can prevent energy data after accident power-off
It disappears；The clock unit 16 is the clock circuit with temperature compensation function, output frequency 1Hz, clock accuracy≤0.4s/
d；The safety certification unit 19 uses embedded safety module comprising kernel algorithm unit, the kernel algorithm unit connect
It is connected to algorithm coprocessor, randomizer, RAM memory and timer, for preventing unauthorized people from operating, to
Ensure the safety of data transmission；The anti-theft electric unit 20 includes current sampling circuit, and the periodically reading of microcontroller 8 is simultaneously more fiery
The value of line and neutral line current sampling, if the two current sampling differences are more than the threshold value of setting, microcontroller 8 selects two electric currents
In the channel measured as current electric quantity of larger current channel, while being stolen by the output sound and light alarm signal instruction of alarm lamp unit
Electricity condition occurs；
The operating mode of the expense control intelligent electric meter includes local charge control pattern and remote bill control pattern, and can receive and take control
Mode switching signal switches between both of which, takes control mode switching signal by preset in single-phase cost-control intelligent ammeter
Switching time triggers, and the preset switching time is configured by the host computer of electricity-selling system, once single-phase cost-control intelligent is electric
When timing in table reaches preset switching time, will according to switch it is current take control pattern, judgement obtains switching letter
Number it is local charge control pattern switching to remote bill control pattern or remote bill control pattern switching to local charge control pattern.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (1)
1. a kind of single-phase cost-control intelligent ammeter, which is characterized in that the ammeter includes shell, display screen, button, card slot, pin
Access port and fingerprint acquisition device, middle position of the display location above the top of shell, display screen are additionally provided with finger
Show that lamp, the pin access port are located at below shell, the fingerprint identification module inside fingerprint acquisition device connection, the button packet
Include ten digital buttons and ACK button, cancel button and four direction button；The internal structure of the ammeter includes monolithic
Machine, metering units, storage unit, power supply unit, alarm unit, display unit, carrier communication unit, relay control unit,
485 communication units, clock unit, key-press input unit, safety certification unit and anti-theft electric unit；The microcontroller uses
78F0526 singlechip chips, the metering units are made of computation chip ADE7755 and peripheral circuit, and metering units are connected with
The signal output end of current sampling unit and voltage sampling unit, current sampling unit and voltage sampling unit connects metering units
Signal input part；The voltage sampling unit formula resistor voltage divider network, the current sampling unit include copper manganese current divider and
Current transformer；The metering units have the function of time-sharing measurement, can be with time-sharing measurement point, peak, flat, the paddy period electricity；
The power supply unit uses lithium battery, and the power supply unit connects alarm unit, and the alarm unit can realize failure report
It is alert, and sound and light alarm signal is sent out automatically when alarm unit detects that supply voltage is less than 3V；The display screen is LCD liquid
Crystal display screen can show electricity, voltage, electric current, power factor data, while can pass through 485 communication units or carrier communication list
Member realizes meter reading, that is, realizes three kinds of different meter reading methods；Under normal usage, indicator light is to be always on state, in card slot
Magnetic card is can be inserted into, time, date, current electricity consumption, current use and the interior remaining sum of card of having deducted fees can be shown on display screen；Work as magnetic card
When being inserted into card slot, user need to press fingerprint simultaneously, and fingerprint recognition mould is transmitted to after acquiring fingerprint image by fingerprint acquisition device
The fingerprint is identified in block, fingerprint identification module, if it does, then magnetic card can out of card slot automatic spring, if mismatch,
It then will appear prompt message on display screen, and fingerprint input information can only malfunction 4 times, be more than number, fingerprint identification module can incite somebody to action
Warning message is transmitted to microcontroller, and microcontroller receives and processes and sends out alarm command by alarm unit after the information, and by system
Locked, which can not work normally, and could restore normal after need to carrying out software unlock；The carrier communication unit utilizes existing
Power transmission and distribution power line network as transmission medium, realize the networking of the long-range electricity-selling system of electric energy meter and power department；It is described
Relay control unit can be automatically switched off in subscriber arrearage or overload, be sent by long-range electricity-selling system when subscriber arrearage
It operates a switch order, after order is operated a switch in ammeter successful reception, the display screen will show " operating a switch " character blinking prompt, relay control
Unit driving relay processed is operated a switch；After operating a switch successfully, " operating a switch " character no longer flickers and keeps showing；After user supplements with money, far
Journey electricity-selling system is retransmited to allow to close a floodgate and be ordered, and after ammeter, which is properly received, orders, display screen shows that " operating a switch " character will at this time
It disappears, relay control unit drives relay to close a floodgate；The storage unit uses eeprom memory, can prevent energy data
It disappears after accident power-off；The clock unit is the clock circuit with temperature compensation function, output frequency 1Hz, clock
Precision≤0.4s/d；The safety certification unit uses embedded safety module comprising kernel algorithm unit, the interior accounting
Method unit is connected with algorithm coprocessor, randomizer, RAM memory and timer, for preventing unauthorized people from carrying out
Operation, to ensure the safety of data transmission；The anti-theft electric unit includes current sampling circuit, and microcontroller is periodically read simultaneously
Compare the value of firewire and neutral line current sampling, if the two current sampling differences are more than the threshold value of setting, microcontroller selection two
The channel that larger current channel is measured as current electric quantity in a electric current, while sound and light alarm signal is exported by alarm lamp unit
Indicate that stealing state occurs；
The operating mode of the expense control intelligent electric meter includes local charge control pattern and remote bill control pattern, and can receive and take control pattern
Switching signal switches between both of which, takes control mode switching signal by preset switching in single-phase cost-control intelligent ammeter
Time triggered, the preset switching time are configured by the host computer of electricity-selling system, once in single-phase cost-control intelligent ammeter
Timing when reaching preset switching time, will according to switch it is current take control pattern, judgement, which obtains switching signal, is
Local charge control pattern switching is to remote bill control pattern or remote bill control pattern switching to local charge control pattern.
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| CN201610416016.XA CN106097588B (en) | 2016-06-15 | 2016-06-15 | A kind of single-phase cost-control intelligent ammeter |
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| CN201610416016.XA CN106097588B (en) | 2016-06-15 | 2016-06-15 | A kind of single-phase cost-control intelligent ammeter |
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| CN106097588B true CN106097588B (en) | 2018-11-02 |
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| CN113295899A (en) * | 2021-05-14 | 2021-08-24 | 国网江苏省电力有限公司苏州供电分公司 | Multifunctional electricity meter and use method thereof |
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