CN102103165A - Electricity meter - Google Patents
Electricity meter Download PDFInfo
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- CN102103165A CN102103165A CN200910189032XA CN200910189032A CN102103165A CN 102103165 A CN102103165 A CN 102103165A CN 200910189032X A CN200910189032X A CN 200910189032XA CN 200910189032 A CN200910189032 A CN 200910189032A CN 102103165 A CN102103165 A CN 102103165A
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Abstract
The invention relates to an electricity meter comprising an electric energy dedicated metering chip, a singlechip, a display device and a communication module, wherein, the corresponding metering data of electric energy parameters is acquired by the electric energy dedicated metering chip; the metering data is received by the singlechip and is stored into a storage arranged in the singlechip to simply analyze, judge and control; and meanwhile the metering data is transformed into power utilization data to be output to the display device for outputting; the power utilization data is transmitted to the communication module and is transmitted to a master server of an electric company by the communication module; a control command transmitted by the master server is received and is transmitted to the singlechip; and the operational mode of the singlechip to the power utilization equipment is adjusted. The invention also relates to an electricity meter seal structure by which each circuit module can be assembled into a single standard sealing piece to form an integrated system with high metering, data control and transmission precision, thus reducing the volume of the electricity meter, and enhancing the reliability.
Description
[technical field]
The present invention relates to a kind of ammeter.
[background technology]
Improvement research to traditional ammeter launches just in high gear, but also do not form system and comprehensive ripe scheme, every kind of product only has several functions of minority: have when ammeter designs, the metering that only has meritorious electric weight is expanded to functions such as time-sharing measurement; Employing concentrator that has or wireless transmission realize the communication between ammeter and the main electrical power plant, but main electrical power plant can not be controlled consumer according to actual conditions, can't reach the purpose of control power consumption.
On the other hand, abundant and perfect along with the raising of the progress of integrated circuit technique, electronic product performance, function, the consumer goods are also more and more higher to the requirement of microminaturization.Existing ammeter all is with the separately design of electric energy metrical module, control module and wireless communication module, uses different chips and peripheral circuit realization function separately respectively.
[summary of the invention]
In order to solve the problem that the power station can't be controlled consumer by ammeter, and each circuit module of ammeter is assembled into single standard packaging part, is necessary to provide a kind of ammeter that can finish the metering of electricity consumption data, data transmission and control consumer in real time.
A kind of ammeter comprises the special-purpose computation chip of electric energy, single-chip microcomputer, display device, communication module; The special-purpose computation chip of described electric energy is used for the electric current and the voltage of consumer are sampled, and obtains the corresponding measurement data of electrical energy parameter; Described single-chip microcomputer is used to receive continuous data, is stored in the built-in storer of single-chip microcomputer, analyzes, judges and make control, simultaneously continuous data is converted into the electricity consumption data and exports to the display device demonstration, and give communication module with the electricity consumption data transmission; Described communication module sends the electricity consumption data master server of Utilities Electric Co. to, receives the steering order that is sent by master server and sends single-chip microcomputer to, by single-chip microcomputer the operational mode of consumer is adjusted.
Preferably, described single-chip microcomputer is to receive continuous data by the first Serial Peripheral Interface communication connection, described electricity consumption data are to be transferred to communication module by the second Serial Peripheral Interface communication connection, and the described first Serial Peripheral Interface communication connection and the second Serial Peripheral Interface communication connection include chip select line CS, clock line SCLK, Data In-Line DIN, DOL Data Output Line DOUT.
Preferably, the special-purpose computation chip of described electric energy comprises following pin:
RESET resets to the special-purpose computation chip of described electric energy;
SIG, the special-purpose computation chip electrification reset of described electric energy or when restarting because of abnormal cause, SIG becomes low level, after described single-chip microcomputer writes calibration data by the first Serial Peripheral Interface communication connection, SIG will become high level immediately;
SEL is to the selection of phase three-wire three and three-phase and four-line;
OSCI, the input end of system's crystal oscillator, or the input of outer fill system clock;
OSCO, the output terminal of system's crystal oscillator;
REFOUT, reference voltage output is as the direct current biasing of external signal;
REFCAP, output 2.4V reference voltage;
GND, the special-purpose computation chip digital circuit of described electric energy grounding pin;
AGND, the special-purpose computation chip mimic channel of described electric energy grounding pin;
VDD, the special-purpose computation chip core power of described electric energy, rated operational voltage 3V;
AVCC, mimic channel power supply, rated operational voltage 5V;
VCC, digital circuit power supply, rated operational voltage 5V;
CS, the Serial Peripheral Interface chip selection signal, low level is effective;
SCLK, the input of Serial Peripheral Interface clock;
DIN, the input of Serial Peripheral Interface data;
DOUT, the output of Serial Peripheral Interface data;
Revp, when the active power that detects any phase when negative, the output high level; When detecting each phase active power all is timing, and output resets to low level;
CF1, active energy pulse output, the size of its frequency reflection active power;
CF2, active energy pulse output, the size of its frequency reflection reactive power.
Preferably, the special-purpose computation chip of described electric energy comprises analog-to-digital conversion module, generating circuit from reference voltage, digital signal processor, impulse generator, voltage monitoring circuit; The electrical energy parameter that described analog-to-digital conversion module is used for collecting is a digital signal by analog signal conversion; Described generating circuit from reference voltage is used to produce reference voltage; Described digital signal processor is used to measure described electrical energy parameter; Described impulse generator generates active energy pulse output and reactive energy pulse output, is used for behind active energy pulse output or the reactive energy pulse output access standard electric energy meter described ammeter being proofreaied and correct; Described voltage monitoring circuit is monitored voltage VCC, the mimic channel power source voltage AVCC of digital circuit power, the voltage VDD of core power, and when any voltage deviation load voltage value 5% wherein, the special-purpose computation chip of described electric energy will be reset.
Preferably, described single-chip microcomputer is monitored the duty of the special-purpose computation chip of electric energy by the SIG pin, described single-chip microcomputer also connects the RESET pin of the special-purpose computation chip of electric energy, resetting of the special-purpose computation chip of control electric energy is to guarantee the synchronous working of the special-purpose computation chip of described single-chip microcomputer and electric energy.
Preferably, be provided with the simulation gauge tap between special-purpose computation chip of described electric energy and the single-chip microcomputer, be used to control the special-purpose computation chip of described electric energy and whether continuous data be transferred to single-chip microcomputer.
Preferably, described single-chip microcomputer also is used to control the mode of operation of communication module.
Preferably, described single-chip microcomputer also is used for regularly the running status of ammeter itself is uploaded to master server by communication module.
Preferably, the special-purpose computation chip of described electric energy is the current-voltage transformer of measuring the current-voltage transformer of single-phase circuit or measuring three-phase circuit.
Preferably, the special-purpose computation chip of described electric energy, single-chip microcomputer, communication module adopt system-in-package structure, and described system-in-package structure comprises substrate and many gold threads.
Preferably, the special-purpose computation chip of described single-chip microcomputer and electric energy is integrated in the system on chip structure.
Preferably, described system-in-package structure is that the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks are arranged on the substrate side by side, and single-chip microcomputer places in the middle of other two chips, and is connected to substrate by described gold thread respectively.
Preferably, described system-in-package structure be with SOC (system on a chip) and communication module arrange side by side with substrate on, and be connected to substrate by gold thread respectively.
Preferably, described system-in-package structure is that the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks are folded successively and are located on the substrate, or be located on the substrate any two chips are folded, the 3rd chip block and this two chip are arranged on the substrate side by side, and are connected to substrate by described gold thread respectively.
Preferably, described system-in-package structure is that SOC (system on a chip) is arranged on the substrate, described communication module is folded be located on the SOC (system on a chip), and is connected to substrate by gold thread respectively.
Preferably, described system-in-package structure is the one side that any two chips in the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks is stacked at mutually substrate, the 3rd chip block is arranged at the another side of substrate, and is connected to substrate by gold thread respectively.
Preferably, described system-in-package structure is that SOC (system on a chip) and communication module are engaged in respectively on the tow sides of substrate, and is connected to substrate by gold thread respectively.
Preferably, described system-in-package structure is provided with perforate on substrate, and in conjunction with face-down bonding technique,, adopts the juncture of deposit tin shot on the chip front side pad with described chip front side down.
Above-mentioned ammeter has realized that Utilities Electric Co. by the real-time control of this ammeter to consumer, can effectively alleviate the electrical network burden of peak times of power consumption.Adopt system-in-package structure, form one complete, the ammeter with high metering, control and data transmission precision has reduced the ammeter volume, has strengthened reliability.
[description of drawings]
Fig. 1 is the electrical representation intention.
Fig. 2 is the special-purpose computation chip schematic diagram of electric energy.
Fig. 3 is first embodiment of ammeter system-in-package structure.
Fig. 4 is second embodiment of ammeter system-in-package structure.
Fig. 5 is the 3rd embodiment of ammeter system-in-package structure.
[embodiment]
Fig. 1 is the synoptic diagram of ammeter.Ammeter comprises the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, display device 108, communication module 110, and wherein special-purpose computation chip 102 of electric energy and single-chip microcomputer 104 can be integrated into a SOC (system on a chip) (System on Chip is SOC) in 11.
The special-purpose computation chip 102 of electric energy adopts current-voltage transformer that the electric current and the voltage of consumer are sampled, and changes into the corresponding measurement data of various electrical energy parameters by internal circuit.Single-chip microcomputer 104 is by first Serial Peripheral Interface (Serial Peripheral Interface, SPI) communication connection receives this continuous data, be stored in the built-in storer and be converted into the electricity consumption data and export to display device 108 demonstrations, and this continuous data is carried out simple analysis, judges and makes control, by communication module 110 the electricity consumption data are sent to the master server of Utilities Electric Co. simultaneously, after by it electricity consumption data being carried out further analyzing and processing, send steering order where necessary.Communication module 110 sends single-chip microcomputer 104 to after receiving instruction, adjusts by the operational mode of 104 pairs of consumers of single-chip microcomputer, thus the purpose that reaches monitoring and manage consumer.
Fig. 2 is the schematic diagram of the special-purpose computation chip 102 of electric energy.Its each functions of pins is as shown in the table.
| The pin name | Pin function |
| RESET | The special- |
| SIG | Special- |
| SEL | The selection of phase three-wire three and three-phase and four-line |
| OSCI | The input end of system's crystal oscillator, or the input of outer fill system clock |
| OSCO | The output terminal of system's crystal oscillator |
| REFOUT | Reference voltage output is as the direct current biasing of external signal |
| REFCAP | Output 2.4V reference voltage |
| GND | The special- |
| AGND | The special- |
| VDD | Special- |
| AVCC | The mimic channel power supply, rated operational voltage 5V |
| VCC | The digital circuit power supply, rated operational voltage 5V |
| CS | The SPI chip selection signal, low level is effective |
| SCLK | The input of SPI serial clock |
| DIN | The input of SPI serial data |
| DOUT | The output of SPI serial data |
| Revp | When the active power that detects any phase when negative, the output high level; When detecting each phase active power all is timing, and output resets to low level |
| CF1 | Active energy pulse output, the size of its frequency reflection active power |
| CF2 | Reactive energy pulse output, the size of its frequency reflection reactive power |
Current-voltage transformer has been adopted in the input voltage of the special-purpose computation chip 102 of electric energy and the sampling of input current, the special-purpose computation chip 102 of electric energy is isolated with electrical network, thereby obtain good interference free performance.The special-purpose computation chip 102 of electric energy is connected with single-chip microcomputer 104 by four Serial Peripheral Interface communication connections: chip select line CS, clock line SCLK, Data In-Line DIN, DOL Data Output Line DOUT.
The special-purpose computation chip of electric energy 102 is integrated delta sigma analog to digital conversion (sinma-delta ADC) module, generating circuit from reference voltage and digital signal processor with measurement functions such as power, energy, effective value, power factor and frequencies, can measure active power, reactive power, applied power, meritorious energy and quadergy, go back electrical energy parameters such as each phase current of energy measurement, voltage effective value, power factor, phase angle, frequency simultaneously, fully satisfy the demand of time-shared charge multifunctional electric energy meter.The special-purpose computation chip 102 of electric energy is supported gain, the phase correction in digital territory.Impulse generator generates active energy pulse output CF1, reactive energy pulse output CF2 provides instantaneous meritorious, reactive power information, can directly CF1 or CF2 be inserted standard electric energy meter, according to the reading of standard electric energy meter ammeter is proofreaied and correct.Described standard electric energy meter be accuracy class at the electric energy meter more than 2/1000ths, be mainly used in ammeter carried out verification.The special-purpose computation chip of electric energy 102 inside also are provided with voltage monitoring circuit, and VCC, AVCC, VDD are monitored, and when arbitrary voltage deviation rated voltage 5% wherein, the special-purpose computation chip 102 of electric energy will be reset.This helps guaranteeing that ammeter powers on and the normal startup and the work of the special-purpose computation chip 102 of electric energy when cutting off the power supply.
Single-chip microcomputer 104 is monitored the duty of the special-purpose computation chip 102 of electric energy by the SIG pin.Special-purpose computation chip 102 electrification resets of electric energy or when restarting because of abnormal cause, single-chip microcomputer 104 upgrades the data of register in the special-purpose computation chip 102 of electric energy by the first Serial Peripheral Interface communication connection, to guarantee the accuracy of metering.The SIG signal is exactly a handshake that is used for notifying single-chip microcomputer 104.The RESET signal of the special-purpose computation chip 102 of electric energy is also by single-chip microcomputer 104 controls, so just can guarantee it no matter is that electric energy special use computation chip 102 can both be synchronoused working with single-chip microcomputer 104 after electric energy special use computation chip 102 or single-chip microcomputer 104 powered on and reset.Single-chip microcomputer 104 can be read the various continuous datas that the special-purpose computation chip 102 of electric energy provides in real time by the first Serial Peripheral Interface communication connection and be saved in the built-in storer, and the continuous data that receives carried out simple analysis, judges and makes control, when continuous data is not in consumer operate as normal allowed band, can closes consumer voluntarily and judge whether by stealing etc. according to the situation of Monitoring Data.
One simulation gauge tap (figure does not show) can be set between special-purpose computation chip 102 of electric energy and single-chip microcomputer 104, and whether the special-purpose computation chip 102 of control electric energy is transferred to single-chip microcomputer 104 with the continuous data that collects.
Be connected by the second Serial Peripheral Interface communication connection between single-chip microcomputer 104 and the communication module 110, mode of operation by single-chip microcomputer 104 control communication modules 110, when the ammeter operate as normal, single-chip microcomputer 104 makes communication module 110 be in the pattern of received signal always.
When the master server sending controling instruction, communication module 110 receives instruction, and instruction is sent to single-chip microcomputer 104, and single-chip microcomputer 104 is adjusted the mode of operation of consumer according to the control information that receives.Simultaneously, single-chip microcomputer 104 also will periodically send to server with the electricity consumption data by communication module 110.Server is added up the data that ammeter in its compass of competency sends, and is sent to the master server of Utilities Electric Co., has realized the real-time monitoring to the power consumption situation, helps Utilities Electric Co. and makes some adjustings according to actual conditions.Such as in peak times of power consumption, when electrical network can't bear the heavy load, the master server of Utilities Electric Co. sent steering order, gave communication module 110 by server forwards, and the temperature of the air-conditioning that each user is used by each ammeter is 2～3 ℃ of come-ups automatically.Compare the way that in the past can only take massive blackout, such mode is more reasonable.Can connect by the wire communication mode between communication module 110 and the server,, also can connect, as 433 modules, WLAN, bluetooth etc. by communication as RS485, RS232 etc.
Simultaneously, single-chip microcomputer 104 also is uploaded to master server with the running status of ammeter itself by communication module 110, makes master server can grasp the working condition of each ammeter in real time.
When the special-purpose computation chip 102 of the electric energy of this ammeter adopts the current-voltage transformer of measuring single-phase circuit, be applied to the domestic consumer; When adopting the current-voltage transformer of measuring three-phase circuit, be applied to the industrial user.
With respect to traditional ammeter, therefore the application's ammeter is necessary to adopt the system in package technology owing to adopted the circuit of high integration, and each module assembling in the ammeter is become single standard packaging part, form one complete, have the system of high metering, control and data transmission precision.
Ammeter mainly is made up of the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, communication module 110, also special-purpose computation chip 102 of electric energy and single-chip microcomputer 104 can be integrated in the SOC (system on a chip) 11, so just only need 110 liang of chip blocks of SOC (system on a chip) 11 and communication module.In addition, peripheral hardwares such as audio frequency can also be in ammeter, added, more multicore sheet will be introduced like this.The Serial Peripheral Interface communication connection is all passed through in connection between the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, the communication module 110, but the Serial Peripheral Interface communication connection is interfered when transmission signals easily, so line should be short as far as possible, and resistance or electric capacity in parallel that each pin is connected will be tried one's best near the pin of signal input.In the Serial Peripheral Interface communication connection between special-purpose computation chip 102 of electric energy and single-chip microcomputer 104, resistance that CS, SCLK, DIN pin are connected and electric capacity in parallel will be tried one's best near the special-purpose computation chip 102 of electric energy, and resistance that the DOUT pin is connected and electric capacity in parallel will be tried one's best near single-chip microcomputer 104.The application system level encapsulation technology can allow inter-chip pitch from nearer, cumulative volume is littler, can reduce signal transmission delay, improve electrical property, also reduced the quantity of interconnection line between chip and the circuit board, improved the reliability of system.
Fig. 3 is first embodiment of ammeter encapsulating structure.On substrate 31, SOC (system on a chip) 11 and communication module 110 are arranged side by side, and be connected on the substrate 31 by gold thread 302, gold thread 304 respectively; Serial Peripheral Interface communication connection between two chips is arranged on the substrate between two chips, has therefore shortened the length of Serial Peripheral Interface communication connection effectively.Adopting the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, when communication module 110 3 chip blocks constitute ammeter, three chip blocks be arranged on the substrate 31 side by side, in the middle of single-chip microcomputer 104 should being placed on, so that be connected with all the other two chips.When using more peripheral hardware chips, a plurality of chips are arranged on the substrate 31 side by side, and the chip of the annexation placed adjacent of trying one's best is arranged.
Fig. 4 is second embodiment of ammeter encapsulating structure.On a substrate 31, with SOC (system on a chip) 11 and communication module 110 mutual folded establishing, consider the chip size of the chip size of SOC (system on a chip) 11 greater than communication module 110, therefore communication module 110 is placed on SOC (system on a chip) 11 chips top, and is connected on the substrate 31 by gold thread 304, gold thread 302 respectively.This embodiment has shortened the length of Serial Peripheral Interface communication connection effectively when having reduced the system in package size.Adopting the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, when communication module 110 3 chip blocks constitute ammeter, be located on the substrate 31 three chip blocks are folded successively, also can any two chips fold and be located at together, arranges side by side in the 3rd chip block and they.Design the time should try one's best single-chip microcomputer 104 is arranged on make things convenient for position that other chip is connected on.When using more peripheral hardware chips, should be according to connection situation and the chip size between the chip, the folded form of establishing of specific design.
Fig. 5 is the 3rd embodiment of ammeter encapsulating structure.SOC (system on a chip) 11 and communication module 110 are engaged in respectively on the positive and negative two sides of substrate 31, and are connected on the substrate by gold thread 302, gold thread 304 respectively.When adopting the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, communication module 110 3 chip blocks formation ammeter, any two chips can be stacked at mutually the one side of substrate 31, the another side that another chip is positioned over substrate 31, come the position of each chip of specific design according to interface case.When using more peripheral hardware chips, according to connection situation and the chip size between the chip, the folded form of establishing of specific design.
The 4th embodiment of ammeter encapsulating structure and the key distinction of the 3rd embodiment are to design perforate on substrate, and in conjunction with face-down bonding technique,, adopt the mode that the deposit tin shot engages with substrate 31 on the chip front side pad with chip front side down.This embodiment more owing to shortened interconnected length greatly, therefore can reduce signal and disturb except improving pin of chip density, improves heat-sinking capability, the reduction encapsulation volume.
Above-mentioned ammeter is with the special-purpose computation chip 102 of electric energy, single-chip microcomputer 104, communication module 110 unified designs, except the electrical energy parameter metering, remote meter reading and the antitheft electric work energy that possess ammeter in the past, the function that also has both monitoring consumer and the running status of ammeter own, and can carry out alternately with higher level control center 112 by communication module 110, receive the power mode of using of its instruction control consumer, reduce the burden of peak times of power consumption electrical network.Owing to adopted single-chip microcomputer 104 with programmable functions, go for different conditions of work, strengthened the versatility of ammeter.
Above-mentioned ammeter adopts system-level encapsulating structure, and the assembling of each circuit module in the ammeter is become single standard packaging part, form one complete, have the system of high metering, control and data transmission precision.Reduce the volume of ammeter, strengthened reliability.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (18)
1. an ammeter is characterized in that: comprise the special-purpose computation chip of electric energy, single-chip microcomputer, display device, communication module; The special-purpose computation chip of described electric energy is used for the electric current and the voltage of consumer are sampled, and obtains the corresponding measurement data of electrical energy parameter; Described single-chip microcomputer is used to receive continuous data, is stored in the built-in storer of single-chip microcomputer, analyzes, judges and make control, simultaneously continuous data is converted into the electricity consumption data and exports to the display device demonstration, and give communication module with the electricity consumption data transmission; Described communication module sends the electricity consumption data master server of Utilities Electric Co. to, receives the steering order that is sent by master server and sends single-chip microcomputer to, by single-chip microcomputer the operational mode of consumer is adjusted.
2. ammeter according to claim 1, it is characterized in that: described single-chip microcomputer is to receive continuous data by the first Serial Peripheral Interface communication connection, described electricity consumption data are to be transferred to communication module by the second Serial Peripheral Interface communication connection, and the described first Serial Peripheral Interface communication connection and the second Serial Peripheral Interface communication connection include chip select line CS, clock line SCLK, Data In-Line DIN, DOL Data Output Line DOUT.
3. ammeter according to claim 1 is characterized in that: the special-purpose computation chip of described electric energy comprises following pin:
RESET resets to the special-purpose computation chip of described electric energy;
SIG, the special-purpose computation chip electrification reset of described electric energy or when restarting because of abnormal cause, SIG becomes low level, after described single-chip microcomputer writes calibration data by the first Serial Peripheral Interface communication connection, SIG will become high level immediately;
SEL is to the selection of phase three-wire three and three-phase and four-line;
OSCI, the input end of system's crystal oscillator, or the input of outer fill system clock;
OSCO, the output terminal of system's crystal oscillator;
REFOUT, reference voltage output is as the direct current biasing of external signal;
REFCAP, output 2.4V reference voltage;
GND, the special-purpose computation chip digital circuit of described electric energy grounding pin;
AGND, the special-purpose computation chip mimic channel of described electric energy grounding pin;
VDD, the special-purpose computation chip core power of described electric energy, rated operational voltage 3V;
AVCC, mimic channel power supply, rated operational voltage 5V;
VCC, digital circuit power supply, rated operational voltage 5V;
CS, the Serial Peripheral Interface chip selection signal, low level is effective;
SCLK, the input of Serial Peripheral Interface clock;
DIN, the input of Serial Peripheral Interface data;
DOUT, the output of Serial Peripheral Interface data;
Revp, when the active power that detects any phase when negative, the output high level; When detecting each phase active power all is timing, and output resets to low level;
CF1, active energy pulse output, the size of its frequency reflection active power;
CF2, active energy pulse output, the size of its frequency reflection reactive power.
4. ammeter according to claim 3 is characterized in that: the special-purpose computation chip of described electric energy comprises analog-to-digital conversion module, generating circuit from reference voltage, digital signal processor, impulse generator, voltage monitoring circuit; The electrical energy parameter that described analog-to-digital conversion module is used for collecting is a digital signal by analog signal conversion; Described generating circuit from reference voltage is used to produce reference voltage; Described digital signal processor is used to measure described electrical energy parameter; Described impulse generator generates active energy pulse output and reactive energy pulse output, is used for behind active energy pulse output or the reactive energy pulse output access standard electric energy meter described ammeter being proofreaied and correct; Described voltage monitoring circuit is monitored voltage VCC, the mimic channel power source voltage AVCC of digital circuit power, the voltage VDD of core power, and when any voltage deviation load voltage value 5% wherein, the special-purpose computation chip of described electric energy will be reset.
5. ammeter according to claim 3, it is characterized in that: described single-chip microcomputer is monitored the duty of the special-purpose computation chip of electric energy by the SIG pin, described single-chip microcomputer also connects the RESET pin of the special-purpose computation chip of electric energy, resetting of the special-purpose computation chip of control electric energy is to guarantee the synchronous working of the special-purpose computation chip of described single-chip microcomputer and electric energy.
6. ammeter according to claim 1 is characterized in that: be provided with the simulation gauge tap between special-purpose computation chip of described electric energy and the single-chip microcomputer, be used to control the special-purpose computation chip of described electric energy and whether continuous data be transferred to single-chip microcomputer.
7. ammeter according to claim 1 is characterized in that: described single-chip microcomputer also is used to control the mode of operation of communication module.
8. ammeter according to claim 1 is characterized in that: described single-chip microcomputer also is used for regularly the running status of ammeter itself is uploaded to master server by communication module.
9. ammeter according to claim 1 is characterized in that: the special-purpose computation chip of described electric energy is the current-voltage transformer of measuring the current-voltage transformer of single-phase circuit or measuring three-phase circuit.
10. ammeter according to claim 1 is characterized in that: the special-purpose computation chip of described electric energy, single-chip microcomputer, communication module adopt system-in-package structure, and described system-in-package structure comprises substrate and many gold threads.
11. ammeter according to claim 10 is characterized in that: the special-purpose computation chip of described single-chip microcomputer and electric energy is integrated in the system on chip structure.
12. ammeter according to claim 10, it is characterized in that: described system-in-package structure is to be arranged in the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks on the substrate side by side, single-chip microcomputer places in the middle of other two chips, and is connected to substrate by described gold thread respectively.
13. ammeter according to claim 11 is characterized in that: described system-in-package structure be with SOC (system on a chip) and communication module arrange side by side with substrate on, and be connected to substrate by gold thread respectively.
14. ammeter according to claim 10, it is characterized in that: described system-in-package structure is that the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks are folded successively and are located on the substrate, or be located on the substrate any two chips are folded, the 3rd chip block and this two chip are arranged on the substrate side by side, and are connected to substrate by described gold thread respectively.
15. ammeter according to claim 11 is characterized in that: described system-in-package structure is that SOC (system on a chip) is arranged on the substrate, described communication module is folded be located on the SOC (system on a chip), and is connected to substrate by gold thread respectively.
16. ammeter according to claim 10, it is characterized in that: described system-in-package structure is the one side that any two chips in the special-purpose computation chip of electric energy, single-chip microcomputer, communication module three chip blocks is stacked at mutually substrate, the 3rd chip block is arranged at the another side of substrate, and is connected to substrate by gold thread respectively.
17. ammeter according to claim 11 is characterized in that: described system-in-package structure is that SOC (system on a chip) and communication module are engaged in respectively on the tow sides of substrate, and is connected to substrate by gold thread respectively.
18. according to claim 16 or 17 described ammeters, it is characterized in that: described system-in-package structure is provided with perforate on substrate, and in conjunction with face-down bonding technique,, adopts the juncture of deposit tin shot on the chip front side pad with described chip front side down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910189032XA CN102103165A (en) | 2009-12-17 | 2009-12-17 | Electricity meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910189032XA CN102103165A (en) | 2009-12-17 | 2009-12-17 | Electricity meter |
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| CN102103165A true CN102103165A (en) | 2011-06-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435802A (en) * | 2011-11-04 | 2012-05-02 | 上海建坤信息技术有限责任公司 | Energy-saving detection device and method for energy performance contracting |
| CN102680778A (en) * | 2012-03-31 | 2012-09-19 | 株洲南车时代电气股份有限公司 | Watt-hour meter of subway trains |
| CN102854382A (en) * | 2011-06-28 | 2013-01-02 | 苏州经贸职业技术学院 | Numerical electricity stealing prevention electric energy detection system |
| CN102937663A (en) * | 2011-08-16 | 2013-02-20 | 北京天中磊智能科技有限公司 | Packaging structure and method for kernel module of intelligent electricity meter |
| CN102944709A (en) * | 2011-08-16 | 2013-02-27 | 北京天中磊智能科技有限公司 | Electric meter module structure realized by adopting multi-chip system-level packaging technology and packaging method thereof |
| CN103176028A (en) * | 2011-12-20 | 2013-06-26 | 财团法人资讯工业策进会 | Electric power monitoring device |
| CN109725278A (en) * | 2018-12-10 | 2019-05-07 | 浙江瑞银电子有限公司 | Verification system and method in a kind of contactless smart meter room |
| CN110596636A (en) * | 2019-09-10 | 2019-12-20 | 江阴长仪集团有限公司 | Smart electric meter power-on loading correction method |
| CN111044781A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
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2009
- 2009-12-17 CN CN200910189032XA patent/CN102103165A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854382A (en) * | 2011-06-28 | 2013-01-02 | 苏州经贸职业技术学院 | Numerical electricity stealing prevention electric energy detection system |
| CN102937663A (en) * | 2011-08-16 | 2013-02-20 | 北京天中磊智能科技有限公司 | Packaging structure and method for kernel module of intelligent electricity meter |
| CN102944709A (en) * | 2011-08-16 | 2013-02-27 | 北京天中磊智能科技有限公司 | Electric meter module structure realized by adopting multi-chip system-level packaging technology and packaging method thereof |
| CN102435802A (en) * | 2011-11-04 | 2012-05-02 | 上海建坤信息技术有限责任公司 | Energy-saving detection device and method for energy performance contracting |
| CN103176028A (en) * | 2011-12-20 | 2013-06-26 | 财团法人资讯工业策进会 | Electric power monitoring device |
| CN103176028B (en) * | 2011-12-20 | 2016-06-15 | 财团法人资讯工业策进会 | Electric power monitoring device |
| CN102680778A (en) * | 2012-03-31 | 2012-09-19 | 株洲南车时代电气股份有限公司 | Watt-hour meter of subway trains |
| CN109725278A (en) * | 2018-12-10 | 2019-05-07 | 浙江瑞银电子有限公司 | Verification system and method in a kind of contactless smart meter room |
| CN110596636A (en) * | 2019-09-10 | 2019-12-20 | 江阴长仪集团有限公司 | Smart electric meter power-on loading correction method |
| CN111044781A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
| CN111044781B (en) * | 2019-12-30 | 2022-04-01 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
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Application publication date: 20110622 |