CN202120438U - Intelligent centralized meter reading terminal - Google Patents
Intelligent centralized meter reading terminal Download PDFInfo
- Publication number
- CN202120438U CN202120438U CN2011201801687U CN201120180168U CN202120438U CN 202120438 U CN202120438 U CN 202120438U CN 2011201801687 U CN2011201801687 U CN 2011201801687U CN 201120180168 U CN201120180168 U CN 201120180168U CN 202120438 U CN202120438 U CN 202120438U
- Authority
- CN
- China
- Prior art keywords
- chip
- module
- links
- terminal
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to an intelligent centralized meter reading terminal, which comprises a microcontroller central processing unit (CPU); a universal serial bus on-the-go (USB OTG) interface and a media access controller (MAC) are integrated in the microcontroller CPU; the microcontroller CPU is connected to the Ethernet through the MAC; and the signal input end of the microcontroller CPU is connected with a data acquisition module and/or a meter reading module. The microcontroller CPU in the terminal is used as a development platform of a product, is designed for the industrial control field sensitive to price and power consumption, and has the characteristics of low price, high performance, low power consumption and the like. The highest main frequency of the microcontroller CPU can reach 72MHz, has rich on-chip resources, and has the most predominant characteristic of excellent interconnection property; and the USB OTG interface and the MAC with a direct memory access (DMA) controller have been integrated on the chip, and the periphery can be interconnected with the Ethernet only by expanding a physical layer.
Description
Technical field
The utility model relates to the electricity meter-reading field, especially a kind of intelligent centralized automatic meter-reading terminal.
Background technology
Along with electricity market and development of economic construction, the power distribution automation series terminal is more and more general in application on power system, and people are also increasingly high to the requirement of end product.The end product functional diversities, the automatic collection, metering exception monitoring, electric energy quality monitoring, electrical energy consumption analysis management and the data hyperchannel that not only require to have to power information are uploaded functions such as main website, need satisfy requirements such as efficient, energy-conservation, low cost simultaneously.
Present existing end product is based on the single-chip microcomputer platform mostly; Need to extend out USB and ethernet feature, increased the cost of product undoubtedly, in addition at acquisition module through extended chip; A lot of manufacturers still continue to use the acquisition scheme that adds ADC in the past; Data processing section is all accomplished by software, and measuring accuracy and product reliability are all had a greatly reduced quality, thereby designs a kind of high-performance, low-power consumption, high precision and intelligent cheaply centralized automatic meter-reading terminal and be significant.
The utility model content
The purpose of the utility model is to provide a kind of high-performance, low-power consumption, high precision and intelligent cheaply centralized automatic meter-reading terminal.
For realizing above-mentioned purpose; The utility model has adopted following technical scheme: a kind of intelligent centralized automatic meter-reading terminal; Comprise microcontroller CPU; Inner integration USB OTG interface of microcontroller CPU and mac controller, microcontroller CPU is through the mac controller access network based on ethernet, and the signal input part of microcontroller CPU links to each other with data acquisition module and/or meter-reading module.
Can be known that by technique scheme microcontroller CPU is as the Products Development platform in the utility model, special being directed against designed price and the comparatively responsive industrial control field of power consumption, has characteristics such as low price, high-performance and low-power consumption.The high primary frequency of microcontroller CPU can reach 72MHz; Not only has resource on the abundant sheet; Its most outstanding characteristics are exactly to have superior interconnected characteristic; Integrated USB OTG interface and the mac controller that has dma controller on the sheet, peripheral expansion one Physical layer that only needs can realize interconnected with Ethernet.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model.
Embodiment
A kind of intelligent centralized automatic meter-reading terminal; Comprise microcontroller CPU; Inner integration USB OTG interface of microcontroller CPU and mac controller; Microcontroller CPU is through the mac controller access network based on ethernet, and the signal input part of microcontroller CPU links to each other with data acquisition module 1 and/or meter-reading module 2, and is as shown in Figure 1.
As shown in Figure 1; Described microcontroller CPU adopts STM32F107 chip 3; STM32F107 chip 3 inner integration USB OTG interfaces with have the mac controller of dma controller, the RMII interface that passes through of mac controller extends out a PHY controller and links to each other with ethernet module, STM32F107 chip 3 passes through ethernet module and main website communication; STM32F107 chip 3 links to each other with data acquisition module 1 through its SPI interface, and STM32F107 chip 3 links to each other with meter-reading module 2 through its asynchronous serial port.
The utility model has adopted 32 embedded microcontroller STM32F107 of interconnected type chip 3 based on Cortex M3 kernel as the Products Development platform; This platform to price and the comparatively responsive industrial control field of power consumption are designed, has characteristics such as low price, high-performance and low-power consumption specially.Its high primary frequency can reach 72MHz; Not only has resource on the abundant sheet; Its most outstanding characteristics are exactly to have superior interconnected characteristic; Integrated USB OTG interface and the mac controller that has dma controller on the sheet, peripheral expansion one Physical layer (PHY) the chip DP83848 that only needs can realize interconnected with Ethernet.Said STM32F107 chip 3 links to each other with GPRS module or CDMA module through its asynchronous serial port; STM32F107 chip 3 is through GPRS module or CDMA module and main website communication; Can support simultaneously based on the GPRS of MC52I module with based on two kinds of wireless communication modes of CDMA of EM200 module, and have the function of automatic detection module.
As shown in Figure 1; Described data acquisition module 1 comprises the MAXQ3180 chip; The input/output terminal of MAXQ3180 chip links to each other with the SPI interface of STM32F107 chip 3 through spi bus, and the input end of MAXQ3180 chip links to each other with the current transformer that is used to gather the three-phase alternating current electric current with the voltage transformer (VT) that is used to gather the three-phase alternating current piezoelectric voltage respectively.Described meter-reading module 2 comprises electric energy meter, and STM32F107 chip 3 links to each other with electric energy meter through carrier module or optical coupling isolation circuit.Adopt the diversified scheme of checking meter, support carrier meter reading, infrared copy meter and the 485 three kinds of schemes of checking meter, can be real-time copy the data of surveying each measurement point, and report main website through Ethernet or wireless public network.The output terminal of high-precision voltage, current transformer is connected with the corresponding acquisition channel of MAXQ3180 chip; The ADC of 8 passages through the MAXQ3180 built-in chip type realizes collection and the processing to signal, and STM32F107 chip 3 can be visited the register of the arbitrary related electric parameter of MAXQ3180 chip internal through the SPI interface.
As shown in Figure 1, the I/O interface of said STM32F107 chip 3 links to each other with remote signalling remote control module 4, LCD display 6 and watchdog circuit 5 respectively.The I of said STM32F107 chip 3
2C interface connects eeprom memory 7, and the SPI interface of said STM32F107 chip 3 links to each other with SD card 9 with FLASH storer 8 respectively.The Smart Card interface of said STM32F107 chip 3 links to each other with the ESAM security module; The ESAM security module contains the integrated circuit of operating system and encryption and decryption logical block, can realize security control functions such as safety storing, data enciphering/deciphering, bidirectional identity authentication, access right control and link encryption transmission.
Claims (8)
1. intelligent centralized automatic meter-reading terminal; It is characterized in that: comprise microcontroller CPU; Inner integration USB OTG interface of microcontroller CPU and mac controller; Microcontroller CPU is through the mac controller access network based on ethernet, and the signal input part of microcontroller CPU links to each other with data acquisition module (1) and/or meter-reading module (2).
2. intelligent centralized automatic meter-reading according to claim 1 terminal; It is characterized in that: described microcontroller CPU adopts STM32F107 chip (3); The inner integration USB OTG of STM32F107 chip (3) interface and the mac controller that has dma controller; The RMII interface that passes through of mac controller extends out a PHY controller and links to each other with ethernet module; STM32F107 chip (3) is through ethernet module and main website communication, and STM32F107 chip (3) links to each other with data acquisition module (1) through its SPI interface, and STM32F107 chip (3) links to each other with meter-reading module (2) through its asynchronous serial port.
3. intelligent centralized automatic meter-reading according to claim 2 terminal; It is characterized in that: said STM32F107 chip (3) links to each other with GPRS module or CDMA module through its asynchronous serial port, and STM32F107 chip (3) is through GPRS module or CDMA module and main website communication.
4. intelligent centralized automatic meter-reading according to claim 2 terminal; It is characterized in that: described data acquisition module (1) comprises the MAXQ3180 chip; The input/output terminal of MAXQ3180 chip links to each other with the SPI interface of STM32F107 chip (3) through spi bus, and the input end of MAXQ3180 chip links to each other with the current transformer that is used to gather the three-phase alternating current electric current with the voltage transformer (VT) that is used to gather the three-phase alternating current piezoelectric voltage respectively.
5. intelligent centralized automatic meter-reading according to claim 2 terminal is characterized in that: described meter-reading module (2) comprises electric energy meter, and STM32F107 chip (3) links to each other with electric energy meter through carrier module or optical coupling isolation circuit.
6. intelligent centralized automatic meter-reading according to claim 2 terminal is characterized in that: the I/O interface of said STM32F107 chip (3) links to each other with remote signalling remote control module (4), LCD display (6) and watchdog circuit (5) respectively.
7. intelligent centralized automatic meter-reading according to claim 2 terminal is characterized in that: the I of said STM32F107 chip (3)
2C interface connects eeprom memory (7), and the SPI interface of said STM32F107 chip (3) links to each other with SD card (9) with FLASH storer (8) respectively.
8. intelligent centralized automatic meter-reading according to claim 2 terminal is characterized in that: the Smart Card interface of said STM32F107 chip (3) links to each other with the ESAM security module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201801687U CN202120438U (en) | 2011-05-31 | 2011-05-31 | Intelligent centralized meter reading terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201801687U CN202120438U (en) | 2011-05-31 | 2011-05-31 | Intelligent centralized meter reading terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120438U true CN202120438U (en) | 2012-01-18 |
Family
ID=45461486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201801687U Expired - Lifetime CN202120438U (en) | 2011-05-31 | 2011-05-31 | Intelligent centralized meter reading terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120438U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830279A (en) * | 2012-09-14 | 2012-12-19 | 北京华鑫志和科技有限公司 | Data processing device used for electric energy meter and power consumption collector |
| CN103050000A (en) * | 2012-12-26 | 2013-04-17 | 广西师范大学 | STM32-based handheld automatic meter reader |
| CN103208962A (en) * | 2013-03-20 | 2013-07-17 | 北京科技大学 | Initiative risk protection system for variable flow type vector control device of high-capacity thyristor |
| CN104104436A (en) * | 2014-07-28 | 2014-10-15 | 安徽科大智能电网技术有限公司 | Electricity meter data acquisition apparatus with infrared upgrade function and upgrade method thereof |
| CN111009108A (en) * | 2019-12-05 | 2020-04-14 | 杭州海兴泽科信息技术有限公司 | Modular meter reading terminal |
-
2011
- 2011-05-31 CN CN2011201801687U patent/CN202120438U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830279A (en) * | 2012-09-14 | 2012-12-19 | 北京华鑫志和科技有限公司 | Data processing device used for electric energy meter and power consumption collector |
| CN103050000A (en) * | 2012-12-26 | 2013-04-17 | 广西师范大学 | STM32-based handheld automatic meter reader |
| CN103208962A (en) * | 2013-03-20 | 2013-07-17 | 北京科技大学 | Initiative risk protection system for variable flow type vector control device of high-capacity thyristor |
| CN103208962B (en) * | 2013-03-20 | 2015-04-29 | 北京科技大学 | Initiative risk protection system for variable flow type vector control device of high-capacity thyristor |
| CN104104436A (en) * | 2014-07-28 | 2014-10-15 | 安徽科大智能电网技术有限公司 | Electricity meter data acquisition apparatus with infrared upgrade function and upgrade method thereof |
| CN111009108A (en) * | 2019-12-05 | 2020-04-14 | 杭州海兴泽科信息技术有限公司 | Modular meter reading terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202120438U (en) | Intelligent centralized meter reading terminal | |
| CN201955886U (en) | Agricultural environment information collection system based on wireless sensor network | |
| CN103313365B (en) | Long-distance Control metering system | |
| CN106197747A (en) | The power overhead network monitoring temperature sensor circuit of a kind of duplicate supply pattern and temp measuring method | |
| Meng et al. | The terminal design of the energy self-sufficiency internet of things | |
| CN202661192U (en) | Wireless temperature measurement system of internet of things and based on ZigBee technique | |
| CN102506932A (en) | Thermodynamic type energy-efficiency data acquisition terminal | |
| CN103246223A (en) | Zigbee-based sensing measurement and control system | |
| CN204556022U (en) | A kind of temperature/humiditydetection detection system based on ZigBee | |
| Zhe et al. | Wireless rotor temperature measurement system based on MSP430 and nRF401 | |
| CN203149795U (en) | Portable wireless temperature and humidity acquisition device | |
| CN205620043U (en) | Temperature detection system | |
| CN203706392U (en) | Wireless sensing communication platform based on STM32, SH79F32 and nRF905 chips | |
| CN204389714U (en) | A kind of weather monitoring instrument realizing Temperature and Humidity based on SHT2X chip | |
| CN201368776Y (en) | Ultra low power wireless digital temperature sensor | |
| CN204065874U (en) | A kind of temperature monitoring protection circuit based on PLC16887 | |
| CN202693677U (en) | Three-phase electronic electric energy meter | |
| CN206773470U (en) | A kind of data concentrator | |
| CN202974475U (en) | Storage battery temperature measuring equipment | |
| CN106802366A (en) | A kind of radio ammeter | |
| CN206237429U (en) | A kind of monitoring system server | |
| CN104424788A (en) | Remote intelligent water meter reading system based on wireless network technology | |
| CN204242377U (en) | Based on the commercial production information acquisition transmission terminal of technology of Internet of things | |
| CN204706176U (en) | Multi-functional data collector | |
| CN202059433U (en) | Remote meter reading system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: KEDA INTELLIGENT ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ANHUI CSG SMART GRID TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 230088 No. 5111 Wangjiang West Road, hi tech Zone, Anhui, Hefei Patentee after: KEDA INTELLIGENT ELECTRICAL TECHNOLOGY CO., LTD. Address before: 230088 No. 612-1, Mount Huangshan Road, hi tech Zone, Anhui, Hefei Patentee before: Anhui Science and Technology Institute of China Smart Grid Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |