CN208297577U - A kind of customer charge identification module being embedded in ammeter - Google Patents
A kind of customer charge identification module being embedded in ammeter Download PDFInfo
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- CN208297577U CN208297577U CN201721915602.5U CN201721915602U CN208297577U CN 208297577 U CN208297577 U CN 208297577U CN 201721915602 U CN201721915602 U CN 201721915602U CN 208297577 U CN208297577 U CN 208297577U
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Abstract
The customer charge that ammeter can be embedded in the utility model discloses one kind recognizes module, including cpu chip, storage chip and connector P2, the storage chip and connector P2 are all connected with the cpu chip.The customer charge identification module for being embedded in ammeter of the utility model will be partially stripped with the power unit of intelligent electric meter identical function, collecting part, communications portion and clock, it is made into interface, the CPU and necessary storage, formation for only retaining core have the module of connecting-disconnecting interface, greatly save resource.And interface setting is rationally, can efficiently accomplish customer charge identification task.
Description
Technical field
The utility model belongs to smart grid, intelligent power technical field, and it is negative to be related to a kind of user that can be embedded in ammeter
Lotus recognizes module.
Background technique
Current non-residential electricity consumption load device for identifying of registering one's residence all is mounted at the total input-wire of residential electricity consumption, is substantially at electricity
Near table, resident load recognizes terminal as intelligent electric meter, requires the voltage and current at acquisition resident's total input-wire
Signal.Resident load recognize terminal it is identical with intelligent electric meter installation site, the semaphore of acquisition is consistent, and require acquisition with
The result data that operational analysis comes out is uploaded to main website, has been bound to cause a degree of waste.
Therefore, a kind of customer charge identification module that can be embedded in ammeter is proposed regarding to the issue above.
Utility model content
The purpose of this utility model be that solve the above-mentioned problems and to provide a kind of user that can be embedded in ammeter negative
Lotus recognizes module.
The utility model is achieved through the following technical solutions above-mentioned purpose, and a kind of customer charge being embedded in ammeter is distinguished
Know module, including cpu chip, storage chip and connector P2, the storage chip and connector P2 are all connected with the CPU core
Piece, the cpu chip include PIN116 (PC7) foot, PIN79 (PB10) foot, PIN80 (PB11) foot, PIN120 (PA9) foot,
PIN121 (PA10) foot, PIN133 (PI2) foot, PIN134 (PI3) foot and PIN31 (NRST) foot and PIN6 (VBAT) foot, it is described
12 foot interfaces include the first PIN1, the first PIN2, the first PIN3, the first PIN4, the first PIN5, the first PIN6, the first PIN7, the
One PIN8, the first PIN10, the first PIN11 and the first PIN12；
The first PIN1 connection 3.3V voltage end, the first PIN12 ground connection；
First PIN2, the first PIN3, the first PIN4, the first PIN5, the first PIN6, the first PIN7, the first PIN8,
One end of one PIN10 and the first PIN11 are separately connected the end RXD6_PC7#, the end TXD3_PB10#, the end RXD3_PB11#, TXD1_
The end PA9#, the end RXD1_PA10#, the end LED1OUT, the end LED2OUT, the end RSTIN and the end VBATIN；
PIN116 (PC7) foot, PIN79 (PB10) foot, PIN80 (PB11) foot, PIN120 (PA9) foot, PIN121
(PA10) foot, PIN133 (PI2) foot, PIN134 (PI3) foot, PIN31 (NRST) foot and PIN6 (VBAT) foot are separately connected described
The end RXD6_PC7#, the end TXD3_PB10#, the end RXD3_PB11#, the end TXD1_PA9#, the end RXD1_PA10#, the end LED1OUT,
The end LED2OUT, the end RSTIN and the end VBATIN.
Further, the cpu chip includes PIN45 (PH4/I2C2_SCL) foot and PIN46 (PH5/I2C2_SDA)
Foot, the storage chip include the 2nd PIN1, the 2nd PIN2, the 2nd PIN3, the 2nd PIN4, the 2nd PIN5, the 2nd PIN6 and the
Two PIN7, the 2nd PIN1, the 2nd PIN2, the 2nd PIN3, the 2nd PIN4 and the 2nd PIN7 are grounded, the 2nd PIN5 and
2nd PIN6 is separately connected PIN45 (PH4/I2C2_SCL) foot and PIN46 (PH5/I2C2_SDA) foot.
It further, further include signal diode, the signal diode includes the 3rd PIN1, the 3rd PIN2 and third
PIN3, the 3rd PIN1 connection end VBATIN, the 3rd PIN2 connection 3.3V voltage end, the cpu chip
It further include PIN6 (VBAT) foot, the 3rd PIN3 passes through resistance R77 connection the PIN6 (VBAT) foot.Normal running conditions
Under, PIN2, PIN3 of signal diode (BAT54CLT1G) are connected, in the case that 3.3V is powered off, signal diode
(BAT54CLT1G) PIN1, PIN3 conducting.
Further, further include pull-up resistor R1 and capacitor C5, the pull-up resistor R1 one end and capacitor C5 one
End is all connected with the PIN31 (NRST) foot, and another termination 3.3V voltage end of the pull-up resistor R1, the capacitor C5's is another
End ground connection.Using the pull-up resistor of 6.8K and the capacitor of a 0.1UF, another termination 3.3V of resistance, capacitor it is another
GND is terminated, works normally and keeps high level, low level is effective, in the case where recognizing module operation irregularity, for giving identification mould
Block reset.
Further, the storage chip is eeprom chip.
Further, the eeprom chip is AT24C128C-SSHM-T chip.
Further, the cpu chip is STM32F407IGT6 chip.
Further, the signal diode is BAT54CLT1G chip.
The beneficial effects of the utility model are: the customer charge identification module for being embedded in ammeter of the utility model will be with
Power unit, collecting part, communications portion and the clock of intelligent electric meter identical function are partially stripped, and are made into interface, only retain core
The CPU of the heart and necessary storage form the module with connecting-disconnecting interface, greatly save resource.And interface setting is rationally, and it can
Efficiently accomplish customer charge identification task.
Detailed description of the invention
The embedded identification modular structure block diagram of Fig. 1；
The interface diagram of Fig. 2 plug connector P2；
Fig. 3 power supply and UART interface figure；
Fig. 4 storage chip interface schema；
Fig. 5 resets and battery-backed power source input interface.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-5, the customer charge identification module for being embedded in ammeter of the utility model, the present invention uses
1 plug connector P2, plug connector P2 are the plug connector of the 12 foot double-row needles of the Header6*2 of spacing 2.54mm, 1 cpu chip, 1
A storage chip and peripheral circuit composition, wherein the model STM32F407IGT6 of cpu chip, storage chip are EEPROM core
Piece (AT24C128C-SSHM-T).
By the corresponding interface of embedded identification module insertion intelligent electric meter, after intelligent electric meter power-up, embedded identification module
Work.The PIN1 (3.3VIN) of connector P2 generates 3.3V after fuse (1210L200PR), gives identification module for power supply；It connects
The PIN2 (RXD6_PC7#) of plug-in unit P2 is connected directly to identification module cpu chip (STM32F407IGT6) by a 0 Europe resistance
PIN116 (PC7), the unidirectional high frequency acquisition data received from intelligent electric meter CPU；The PIN3 (TXD3_PB10#) of connector P2,
PIN4 (RXD3_PB11#) is connected directly to the PIN79 of identification module cpu chip (STM32F407IGT6) by 20 Europe resistance
(PB10), PIN80 (PB11) is managed data communication with intelligent electric meter CPU: the PIN5 (TXD1_PA9#) of connector P2,
PIN6 (RXD1_PA10#) is connected directly to the PIN120 of identification module cpu chip (STM32F407IGT6) by 20 Europe resistance
(PA9), PIN121 (PA10), can directly and PERCOM peripheral communication by the RS485 chip of intelligent electric meter bottom plate；The PIN7 of connector P2
(LED1OUT), PIN8 (LED2OUT) be connected directly to identification module cpu chip (STM32F407IGT6) PIN133 (PI2),
PIN134 (PI3) is used to indicate the output of lamp level, and high level indicator light is bright, for observing the working condition of identification module CPU；
The PIN9 (BK1) of connector P2, spare pin do not connect vacantly；The PIN10 (RSTIN) of connector P2 is connected directly to identification module CPU
The reset pin PIN31 (NRST) of chip (STM32F407IGT6) need to connect the pull-up resistor and 0.1UF of a 6.8K
Capacitor, another termination 3.3V of resistance, another termination GND of capacitor are worked normally and are kept high level, and low level is effective, is distinguishing
In the case where knowing module operation irregularity, for giving identification module resets；Direct-connected two pole of signal the PIN11 (VBATIN) of connector P2
The PIN1 foot of (BAT54CLT1G) is managed, the PIN2 foot of signal diode (BAT54CLT1G) is connected to 3.3V, signal diode
(BAT54CLT1G) PIN3 foot is connected to the PIN6 of identification module CPU (STM32F407IGT6) by the resistance of a 1K
(VBAT), under normal running conditions, PIN2, PIN3 of signal diode (BAT54CLT1G) are connected, in the case that 3.3V is powered off,
PIN1, PIN3 of signal diode (BAT54CLT1G) are connected；The GND of PIN12 (GND) direct-connected module of connector P2.
Table 1 is each pin definitions of plug connector P2
Interface function explanation:
Power supply is obtained by 1 foot of interface and 12 feet, is+3.3V and GND respectively, and power is not less than 500mW；
Part of data acquisition, it is unidirectional to receive the high frequency from intelligent electric meter CPU by the combination of 2 foot RX1 and 12 foot GND
Acquire data；
Data are managed, data communication is managed by 3 foot TX2,4 foot RX2 and 12 foot GND and intelligent electric meter CPU, such as obtains
Ammeter number, time, voltage and current no-load voltage ratio data etc. are taken, which is also communicated as main website by power line carrier mode simultaneously
When be sent to customer charge identification module data forwarding interface；
RS485 communication interface, the interface of 5 foot TX3,6 foot RX3 as external RS485 chip communication；
Indicator light interface, 7 foot LED1 and 8 foot LED2 indicator light interfaces are used to indicate the output of lamp level, high level indicator light
It is bright；
Reseting interface, 10 foot RSTIN are worked normally as the reseting interface of CPU and are kept high level, and low level is effective.
Battery-backed power source input interface, 11 pin VBAT are the backup power source i.e. power supplys of intelligent electric meter battery, in power supply
3.3V is used to power to the storage section inside CPU in the case where powering off.
PIN1~PIN4, the PIN7 of storage chip (AT24C128C-SSHM-T) meet GND；PIN5(SDA),PIN6(SCL)
It is connected directly to PIN45 (PH4/I2C2_SCL), the PIN46 (PH5/I2C2_ of identification module cpu chip (STM32F407IGT6)
SDA), each pin need to meet the pull-up resistor of a 2K, another termination 3.3V of resistance；PIN8 (VCC) meets 3.3V, gives storage core
Piece (AT24C128C-SSHM-T) power supply.Storage chip (AT24C128C-SSHM-T) passes through iic bus and identification module CPU core
Piece (STM32F407IGT6) is communicated.
Table 2 is that the pin function of cpu chip corresponds to table
The utility model is by sharing the power unit of intelligent electric meter, analog acquisition part, communications part, clock
Customer charge is recognized modularization, is integrated in inside intelligent electric meter as embedded module by part, realizes economic maximization, no
Hardware cost is only saved, and simplifies installation process, only needs that intelligent electric meter is installed in practical application intelligence can be realized
Ammeter installation synchronous with identification module.Greatly reduce the cost and installation door of residential electricity consumption load identification technique application implementation
Sill have established solid foundation to non-resident's identification technique batch large-scale application of registering one's residence.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. the customer charge identification module that one kind can be embedded in ammeter, which is characterized in that including cpu chip, storage chip and connect
Plug-in unit P2, the storage chip and connector P2 are all connected with the cpu chip, the cpu chip include PIN116 (PC7) foot,
PIN79 (PB10) foot, PIN80 (PB11) foot, PIN120 (PA9) foot, PIN121 (PA10) foot, PIN133 (PI2) foot, PIN134
(PI3) foot and PIN31 (NRST) foot and PIN6 (VBAT) foot, the connector P2 include the first PIN1, the first PIN2, first
PIN3, the first PIN4, the first PIN5, the first PIN6, the first PIN7, the first PIN8, the first PIN10, the first PIN11 and first
PIN12；
The first PIN1 connection 3.3V voltage end, the first PIN12 ground connection；
First PIN2, the first PIN3, the first PIN4, the first PIN5, the first PIN6, the first PIN7, the first PIN8, first
One end of PIN10 and the first PIN11 are separately connected the end RXD6_PC7#, the end TXD3_PB10#, the end RXD3_PB11#, TXD1_PA9#
End, the end RXD1_PA10#, the end LED1OUT, the end LED2OUT, the end RSTIN and the end VBATIN；
PIN116 (PC7) foot, PIN79 (PB10) foot, PIN80 (PB11) foot, PIN120 (PA9) foot, PIN121 (PA10)
Foot, PIN133 (PI2) foot, PIN134 (PI3) foot, PIN31 (NRST) foot and PIN6 (VBAT) foot are separately connected the RXD6_
The end PC7#, the end TXD3_PB10#, the end RXD3_PB11#, the end TXD1_PA9#, the end RXD1_PA10#, the end LED1OUT, LED2OUT
End, the end RSTIN and the end VBATIN.
2. the customer charge identification module according to claim 1 for being embedded in ammeter, it is characterised in that: the CPU core
Piece includes PIN45 (PH4/I2C2_SCL) foot and PIN46 (PH5/I2C2_SDA) foot, the storage chip include the 2nd PIN1,
2nd PIN2, the 2nd PIN3, the 2nd PIN4, the 2nd PIN5, the 2nd PIN6 and the 2nd PIN7, the 2nd PIN1, the 2nd PIN2,
2nd PIN3, the 2nd PIN4 and the 2nd PIN7 are grounded, and the 2nd PIN5 and the 2nd PIN6 is separately connected PIN45 (PH4/
I2C2_SCL) foot and PIN46 (PH5/I2C2_SDA) foot.
3. the customer charge identification module according to claim 1 for being embedded in ammeter, it is characterised in that: further include signal
Diode, the signal diode includes the 3rd PIN1, the 3rd PIN2 and the 3rd PIN3, described in the 3rd PIN1 connection
The end VBATIN, the 3rd PIN2 connection 3.3V voltage end, the cpu chip further include PIN6 (VBAT) foot, and described
Three PIN3 pass through resistance R77 connection the PIN6 (VBAT) foot.
4. the customer charge identification module according to claim 1 for being embedded in ammeter, it is characterised in that: further include pull-up
Resistance R1 and capacitor C5, one end of the pull-up resistor R1 and one end of capacitor C5 are all connected with the PIN31 (NRST) foot, described
Another termination 3.3V voltage end of pull-up resistor R1, the other end ground connection of the capacitor C5.
5. the customer charge identification module according to claim 2 for being embedded in ammeter, it is characterised in that: the storage core
Piece is eeprom chip.
6. the customer charge identification module according to claim 5 for being embedded in ammeter, it is characterised in that: the EEPROM
Chip is AT24C128C-SSHM-T chip.
7. the customer charge identification module according to claim 1 for being embedded in ammeter, it is characterised in that: the CPU core
Piece is STM32F407IGT6 chip.
8. the customer charge identification module according to claim 3 for being embedded in ammeter, it is characterised in that: the signal two
Pole pipe is BAT54CLT1G chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721915602.5U CN208297577U (en) | 2017-12-31 | 2017-12-31 | A kind of customer charge identification module being embedded in ammeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721915602.5U CN208297577U (en) | 2017-12-31 | 2017-12-31 | A kind of customer charge identification module being embedded in ammeter |
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|---|---|
| CN208297577U true CN208297577U (en) | 2018-12-28 |
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| CN201721915602.5U Active CN208297577U (en) | 2017-12-31 | 2017-12-31 | A kind of customer charge identification module being embedded in ammeter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907697A (en) * | 2019-11-19 | 2020-03-24 | 国网天津市电力公司电力科学研究院 | Intelligent measurement system based on novel intelligent electric meter |
| CN111009110A (en) * | 2019-11-28 | 2020-04-14 | 江苏智臻能源科技有限公司 | Method and hardware equipment for collecting load identification data of user electric meter |
| CN113223287A (en) * | 2021-04-02 | 2021-08-06 | 国电南瑞南京控制系统有限公司 | SPI-based communication method and system for intelligent electric energy meter and load identification module |
-
2017
- 2017-12-31 CN CN201721915602.5U patent/CN208297577U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907697A (en) * | 2019-11-19 | 2020-03-24 | 国网天津市电力公司电力科学研究院 | Intelligent measurement system based on novel intelligent electric meter |
| CN111009110A (en) * | 2019-11-28 | 2020-04-14 | 江苏智臻能源科技有限公司 | Method and hardware equipment for collecting load identification data of user electric meter |
| CN113223287A (en) * | 2021-04-02 | 2021-08-06 | 国电南瑞南京控制系统有限公司 | SPI-based communication method and system for intelligent electric energy meter and load identification module |
| CN113223287B (en) * | 2021-04-02 | 2022-05-24 | 国电南瑞南京控制系统有限公司 | SPI-based communication method and system for intelligent electric energy meter and load identification module |
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