CN111208329A - Take single-phase cost control smart electric meter of pronunciation voiceprint discernment - Google Patents
Take single-phase cost control smart electric meter of pronunciation voiceprint discernment Download PDFInfo
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- CN111208329A CN111208329A CN202010140037.XA CN202010140037A CN111208329A CN 111208329 A CN111208329 A CN 111208329A CN 202010140037 A CN202010140037 A CN 202010140037A CN 111208329 A CN111208329 A CN 111208329A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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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
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
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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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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
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- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Power Engineering (AREA)
- Computing Systems (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a single-phase cost control intelligent ammeter with voice voiceprint recognition function, which comprises a shell, a display screen, indicator lamps, keys, a CPU (central processing unit) clamping groove, a wiring terminal and a voice acquisition device, wherein the display screen is positioned at the upper part of the shell, a row of 3 indicator lamps is further arranged below the display screen, the wiring terminal is positioned below the shell, the voice acquisition device is connected with an internal voice voiceprint recognition module, and the keys comprise a confirmation (screen turning) button and a cancellation button. The internal structure of the electric meter comprises a single chip microcomputer, a metering unit, a storage unit, a power supply unit, an alarm unit, a display screen control unit, a carrier communication unit, a relay control unit, a clock unit, a key input unit, a CPU card communication unit, a safety certification unit and a voice voiceprint recognition unit. The intelligent electric meter has the advantages of rich functions, high intelligent degree and the like.
Description
Technical Field
The invention relates to the field of electric energy measurement in the electrical instrument industry, in particular to a single-phase cost control intelligent electric meter with voice voiceprint recognition.
Background
The electric meter is used as a special metering device for the electricity consumption of an electric energy user, and is developed from an induction type electric meter to a full electronic type electric meter, wherein the full electronic type electric meter is functionally developed in the development stages of a common electronic type electric energy meter, a multi-rate electric energy meter, a prepayment electric energy meter, a multifunctional electric energy meter and the like. The existing electric energy meter has certain disadvantages: the function is single, and intelligent degree is not high, and the precision is low, and the data is copied and is read the mode inconvenient, and the data reliability is not high, and it is inconvenient to use.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to solve the technical problems that in order to overcome the defects in the prior art, the single-phase cost control intelligent electric meter with the voice voiceprint recognition function is provided, and aims to solve the problems that the existing function is single, the use is inconvenient, and the intelligence degree is not high.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides a take single-phase expense accuse smart electric meter of pronunciation voiceprint discernment, the ammeter includes shell, display screen, button, CPU draw-in groove, binding post and pronunciation collection system, the display screen is located the upper portion of shell, and the position of display screen below still is provided with one row of 3 pilot lamps, binding post is located the shell below, and pronunciation collection system connects inside pronunciation voiceprint recognition module, the button is including confirming (turning over the screen) button, cancel button.
The internal structure of ammeter includes singlechip, measurement unit, memory cell, electrical unit, alarm unit, display screen control unit, carrier communication unit, relay control unit, clock unit, button input unit, CPU card communication unit, security authentication unit and pronunciation voiceprint recognition unit, measurement unit, pronunciation voiceprint recognition unit, electrical unit, CPU card communication unit, clock unit and button input unit's output and the one-way electricity of the output of singlechip are connected, two-way electricity is connected between memory cell, carrier communication unit, relay control unit and security authentication unit and the singlechip.
Preferably, the security authentication unit adopts an embedded security module, the embedded security module comprises a kernel algorithm unit, the kernel algorithm unit is electrically connected with an algorithm coprocessor, a random number generator, an RAM memory and a timer in a bidirectional mode, the kernel algorithm unit can adopt one of a DES algorithm or a DES algorithm, the timer determines and records the time when the security authentication unit completes encryption, a public key, a private key and S box data are stored in the RAM memory, the random number generator is used for generating a single secondary key, and the algorithm coprocessor completes the calculation process of the DES algorithm and is used for preventing an unauthorized person from operating, so that the security of data transmission is guaranteed.
Preferably, the metering unit comprises metering chip RN8209C and peripheral circuit, and metering unit electric connection has current sampling unit and voltage sampling unit, and the signal output part of current sampling unit and voltage sampling unit is connected with the signal input part one-way electricity of metering unit, voltage sampling unit adopts the divider resistance network, current sampling unit includes copper manganese shunt and current transformer, the metering unit has the function of timesharing measurement, can timesharing measure the electric quantity of point, peak, flat, valley period.
Preferably, the power supply unit obtains a working power supply of the circuit from alternating current by adopting bridge rectification and a three-terminal voltage stabilizing device, and the power supply unit can adopt a lithium battery as a backup power supply.
Preferably, the alarm unit is electrically connected with the indicator light and the display screen, and the output end of the alarm unit is unidirectionally and electrically connected with the output ends of the indicator light and the display screen. The alarm device can realize fault alarm, the input end of the alarm unit is in one-way electric connection with the output ends of the single chip microcomputer and the metering unit, the source of the fault alarm comprises the single chip microcomputer and the metering chip, the display modes comprise an indicator light and a liquid crystal display, the principle is that the emergency fault alarm is represented by the indicator light, and the non-emergency fault alarm is represented by the liquid crystal display which needs to be described.
Preferably, the display screen can adopt an LCD (liquid crystal display), the output end of the display screen is in one-way electric connection with the output end of the display screen control unit, the display screen can display data such as electric quantity, voltage, current, power factor and the like, meanwhile, the meter reading can be realized through the carrier communication unit, and a user number is reported by a corresponding user during daily use.
Preferably, the display screen can adopt an LCD (liquid crystal display), the output end of the display screen is in one-way electric connection with the output end of the display screen control unit, the display screen can display data such as electric quantity, voltage, current, power factor and the like, meanwhile, the meter reading can be realized through the carrier communication unit, and a user number is reported by a corresponding user during daily use.
Preferably, a CPU card can be inserted into the CPU card slot, and the input end of the CPU card communication unit is electrically connected to the output end of the CPU card slot in a unidirectional manner.
Preferably, the carrier communication unit uses an existing power transmission and distribution network as a transmission medium.
Preferably, the storage unit can adopt an EEPROM (electrically erasable programmable read-only memory), so that electric energy data can be prevented from disappearing after power failure accidentally, the clock unit is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.4 s/d.
The single-phase cost control intelligent electric meter with the voice voiceprint recognition function provided by the invention has the following beneficial technical effects:
1. the charge control function and remote meter reading can be realized, and the electric energy metering and settlement requirements can be better met.
2. And safety authentication and voiceprint recognition are adopted, so that the data safety is high.
3. The LCD can display data such as electric quantity, voltage, current, power factor and the like, and meanwhile, the meter reading can be realized through the carrier communication unit, so that the remote meter reading is realized at lower cost and simple construction.
4. The electric energy quality monitoring alarm and the alarm of excessively low working power supply voltage of the electric meter can be realized, the management is convenient, and the running reliability of the electric meter is improved.
5. The voice control meter reading mode reduces the operation of checking the electric quantity and the balance by a user, and improves the convenience of using the electric meter.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a block diagram of an intelligent system of the present invention;
FIG. 3 is a flow chart of the intelligent identification decision of the present invention;
FIG. 4 is a diagram of a security authentication unit according to the present invention.
In the figure: the device comprises a shell 1, a display screen 2, a CPU card slot 3, a voice acquisition device 4, keys 5, a wiring terminal 6, an indicator light 7, a singlechip 8, a metering unit 9, a storage unit 10, a power supply unit 11, an alarm unit 12, a carrier communication unit 13, a relay control unit 14, a CPU card communication unit 15, a clock unit 16, a key input unit 17, a display screen control unit 18, a safety certification unit 19, a voice voiceprint recognition unit 20, a current sampling unit 9.1, a voltage sampling unit 9.2, an algorithm coprocessor 19.1, a random number generator 19.2, a RAM memory 19.3 and a timer 19.4.
Detailed Description
The invention provides a single-phase cost control intelligent electric meter with voice and voiceprint recognition, and in order to make the purposes, technical schemes and advantages of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and by taking implementation examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1-4 show a single-phase cost control smart electric meter with voice voiceprint recognition, the smart electric meter comprises a shell 1, a display screen 2, a CPU card slot 3, a voice acquisition device 4, a key 5 and a wiring terminal 6, wherein the display screen 2 is positioned on the upper part of the shell 1, a row of indicator lamps 7 are further arranged below the display screen 2, the wiring terminal 6 is positioned below the shell 1, the voice acquisition device 4 is connected with an internal voice voiceprint recognition module, the key 5 comprises a confirmation (screen turning) button and a cancel button, the key 5 is connected with an internal key input unit 16, and the indicator lamps 7 comprise a pulse indicator lamp, a trip indicator lamp and a fault indicator lamp from left to right.
The internal structure of the electric meter 1 comprises a single chip microcomputer 8, a metering unit 9, a storage unit 10, a power supply unit 11, an alarm unit 12, a display screen control unit 18, a carrier communication unit 13, a relay control unit 14, a clock unit 16, a key input unit 17, a CPU card communication unit 15, a security authentication unit 19 and a voice voiceprint recognition unit 20, the output ends of the metering unit 9, the voice voiceprint recognition unit 20, the power supply unit 11, the CPU card communication unit 15, the clock unit 16 and the key input unit 17 are in one-way electric connection with the output end of the single chip microcomputer 8, the storage unit 10, the carrier communication unit 13, the relay control unit 14, the security authentication unit 19 and the single chip microcomputer 8 are in two-way electric connection, and the metering unit 9 is composed of a metering chip RN8209C and a.
The security authentication unit 19 adopts an embedded security module, the embedded security module comprises a kernel algorithm unit, the kernel algorithm unit is electrically connected with an algorithm coprocessor 19.1, a random number generator 19.2, an RAM memory 19.3 and a timer 19.4 in a bidirectional mode, the kernel algorithm unit can adopt one of a DES algorithm or a 3DES algorithm, the timer 19.4 determines and records the time when the security authentication unit completes encryption, a public key, a private key and S box data are stored in the RAM memory 19.3, the random number generator 19.2 is used for generating a single secondary key, and the algorithm coprocessor completes the DES algorithm calculation process and is used for preventing an unauthorized person from operating so as to guarantee the security of data transmission.
The metering unit 9 comprises a metering chip RN8209C and a peripheral circuit, the metering unit 9 is electrically connected with a current sampling unit 9.1 and a voltage sampling unit 9.2, signal output ends of the current sampling unit 9.1 and the voltage sampling unit 9.2 are in one-way electric connection with a signal input end of the metering unit 9, the voltage sampling unit 9.2 adopts a divider resistor network, the current sampling unit 9.1 comprises a copper-manganese shunt and a current transformer, the metering unit 9 has a time-sharing metering function, and the electric quantity of a tip, a peak, a flat and a valley period can be metered in a time-sharing mode.
The power supply unit 11 obtains a working power supply of a circuit from alternating current by adopting bridge rectification and a three-terminal voltage stabilizing device, and can adopt a lithium battery as a backup power supply.
The alarm unit 12 is electrically connected with the indicator light 7 and the display screen 2, and the output end of the alarm unit 12 is unidirectionally and electrically connected with the output ends of the indicator light 7 and the display screen 2. The alarm device can realize fault alarm, the input end of the alarm unit 12 is in one-way electric connection with the output ends of the single chip microcomputer 8 and the metering unit 9, the source of the fault alarm comprises the single chip microcomputer and the metering chip, the display modes comprise an indicator light and a liquid crystal display, the principle is that the emergency fault alarm is represented by the indicator light, and the non-emergency fault alarm is represented by the liquid crystal display which needs to be described.
The display screen 2 can adopt an LCD (liquid crystal display), the output end of the display screen 2 is in one-way electric connection with the output end of the display screen control unit 18, the display screen 2 can display data such as electric quantity, voltage, current, power factor and the like, meanwhile, the meter reading can be realized through the carrier communication unit, and a user number is reported by a corresponding user during daily use.
The display screen 2 can adopt an LCD (liquid crystal display), the output end of the display screen 2 is in one-way electric connection with the output end of the display screen control unit 18, the display screen 2 can display data such as electric quantity, voltage, current, power factor and the like, meanwhile, the meter reading can be realized through the carrier communication unit, and a user number is reported by a corresponding user during daily use.
The CPU card can be inserted into the CPU card slot 3, the input end of the CPU card communication unit 15 is unidirectionally and electrically connected with the output end of the CPU card slot 3, the CPU card communication unit 15 completes the handshake and data communication between the intelligent ammeter and the CPU card, the display screen 2 can display the time, date, current consumed electricity, current fee and balance in the card, when the CPU card is inserted into the CPU card slot 3, the user needs to report the user number, the voice is collected by the voice collecting device 4 and transmitted to the voice voiceprint recognition unit 20, the voice voiceprint recognition unit 20 recognizes the voice, extracts the user number and the characteristic voiceprint, if the CPU card is matched, the CPU card can be automatically popped out from the CPU card slot 3, if the CPU card is not matched, the display screen can display prompt information, the voice input information can only go wrong for 4 times and exceed the times, the voice voiceprint recognition module can transmit the alarm information to the singlechip 8, the singlechip 8 receives and processes the information and then sends an alarm instruction by the alarm unit 12, and the system is locked, the ammeter can not work normally, and the ammeter can be recovered to be normal after software unlocking is carried out.
The carrier communication unit 13 uses the existing power transmission and distribution power line network as a transmission medium to realize the networking of the electric energy meter and the remote electricity-selling system of the power department, the relay control unit 14 can automatically open and cut off the switch when the user is in charge of the arrearage, the remote electricity-selling system sends an opening command when the user is in charge of the arrearage, the display unit lights the 'opening' indicator lamp when the electric meter successfully receives the opening command, the relay control unit 14 drives the relay to open the switch, the 'opening' indicator lamp does not flash and keeps displaying after the opening command is successfully received, the remote electricity-selling system sends an allowable closing command again when the user charges, the 'opening' indicator lamp of the display unit is turned off when the electric meter successfully receives the command, and the relay control unit 14 drives the relay to close the switch.
The storage unit 10 can be an EEPROM memory, which can prevent the power data from disappearing after an unexpected power failure, the clock unit 16 is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.4 s/d.
The working principle is as follows: CPU card is inserted into CPU card slot 3, CPU card communication unit 15 completes the handshake and data communication between the intelligent ammeter and CPU card, time, date, current power consumption, current cost and card balance can be displayed on display screen 2, when CPU card is inserted into CPU card slot 3, user number is required to be reported, voice is collected by voice collecting device 4 and transmitted to voice voiceprint recognition unit 20, voice voiceprint recognition unit 20 recognizes voice, user number and characteristic voiceprint are extracted, if matching, CPU card will be popped out from CPU card slot 3 automatically, if not matching, prompt information will appear on display screen, and voice input information can only make mistakes 4 times, more times, voice voiceprint recognition module will transmit alarm information to single chip 8, single chip 8 receives and processes the information, alarm instruction is sent by alarm unit 12 and system is locked, the electric meter can not work normally, and can be recovered to normal after software unlocking, the carrier communication unit 13 uses the existing power transmission and distribution power line network as a transmission medium to realize the networking of the electric energy meter and a remote electricity selling system of an electric power department, the relay control unit 14 can automatically switch off and power off when a user is in charge of arrearage or overload, the remote electricity selling system sends a switch-off command when the user is in charge of arrearage, the display unit lights the 'switch-off' indicator lamp after the electric meter successfully receives the switch-off command, the relay control unit 14 drives the relay to switch off, the 'switch-off' indicator lamp does not flicker and keeps displaying after the switch-off command is successfully received, the remote electricity selling system sends a closing permission command again after the user charges, the 'switch-off' indicator lamp of the display unit is turned off after the electric meter successfully receives the command, and the relay control unit 14 drives the relay to.
The control mode of the invention is automatically controlled by a singlechip controller, the control circuit of the singlechip can be realized by simple programming of technicians in the field, and the supply of the power supply also belongs to the common knowledge in the field.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The single-phase cost control intelligent ammeter with the voice voiceprint recognition function is characterized by comprising a shell, a display screen, keys, a CPU (central processing unit) clamping groove, a wiring terminal and a voice acquisition device, wherein the display screen is positioned at the upper part of the shell, a row of 3 indicator lamps are further arranged at the position below the display screen, the wiring terminal is positioned below the shell, the voice acquisition device is connected with an internal voice voiceprint recognition module, and the keys comprise a confirmation (screen turning) button and a cancel button;
the internal structure of ammeter includes singlechip, measurement unit, memory cell, electrical unit, alarm unit, display screen control unit, carrier communication unit, relay control unit, clock unit, button input unit, CPU card communication unit, security authentication unit and pronunciation voiceprint recognition unit, measurement unit, pronunciation voiceprint recognition unit, electrical unit, CPU card communication unit, clock unit and button input unit's output and the one-way electricity of the output of singlechip are connected, two-way electricity is connected between memory cell, carrier communication unit, relay control unit and security authentication unit and the singlechip.
2. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the security authentication unit adopts an embedded security module, the embedded security module comprises a kernel algorithm unit, and the kernel algorithm unit is electrically connected with an algorithm coprocessor, a random number generator, an RAM memory and a timer in a bidirectional mode.
3. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the metering unit comprises metering chip RN8209C and peripheral circuit, and metering unit electric connection has current sampling unit and voltage sampling unit, and the signal output part of current sampling unit and voltage sampling unit is connected with the one-way electricity of metering unit's signal input part, voltage sampling unit adopts the divider resistance network, current sampling unit includes copper manganese shunt and current transformer.
4. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the power supply unit obtains a working power supply of the circuit from alternating current by adopting bridge rectification and a three-terminal voltage stabilizing device, and can adopt a lithium battery as a backup power supply.
5. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the alarm unit is electrically connected with the indicator light and the display screen, and the output end of the alarm unit is unidirectionally and electrically connected with the output ends of the indicator light and the display screen.
6. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the display screen can adopt an LCD (liquid crystal display), and the output end of the display screen is in one-way electric connection with the output end of the display screen control unit.
7. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the output end of the voice acquisition device is in one-way electric connection with the input end of the voice voiceprint recognition unit.
8. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the CPU card slot is internally inserted with a CPU card, and the input end of the CPU card communication unit is unidirectionally and electrically connected with the output end of the CPU card slot.
9. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the carrier communication unit utilizes an existing power transmission and distribution power line network as a transmission medium.
10. The single-phase fee-control intelligent electric meter board with the voice voiceprint recognition function as claimed in claim 1, wherein: the storage unit can adopt an EEPROM (electrically erasable programmable read-only memory) to prevent electric energy data from disappearing after accidental power failure, the clock unit is a clock circuit with a temperature compensation function, the output frequency is 1Hz, and the clock precision is less than or equal to 0.4 s/d.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010140037.XA CN111208329A (en) | 2020-03-03 | 2020-03-03 | Take single-phase cost control smart electric meter of pronunciation voiceprint discernment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010140037.XA CN111208329A (en) | 2020-03-03 | 2020-03-03 | Take single-phase cost control smart electric meter of pronunciation voiceprint discernment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160834A (en) * | 2021-04-27 | 2021-07-23 | 河南能创电子科技有限公司 | Low-voltage centralized reading, operation and maintenance implementation method based on AI intelligent voice recognition technology |
| CN118209783A (en) * | 2024-05-17 | 2024-06-18 | 江苏西欧电子有限公司 | Safe electric energy meter based on LI-FI communication technology |
-
2020
- 2020-03-03 CN CN202010140037.XA patent/CN111208329A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160834A (en) * | 2021-04-27 | 2021-07-23 | 河南能创电子科技有限公司 | Low-voltage centralized reading, operation and maintenance implementation method based on AI intelligent voice recognition technology |
| CN118209783A (en) * | 2024-05-17 | 2024-06-18 | 江苏西欧电子有限公司 | Safe electric energy meter based on LI-FI communication technology |
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