CN202996004U - Meter reading terminal based on wired television network - Google Patents
Meter reading terminal based on wired television network Download PDFInfo
- Publication number
- CN202996004U CN202996004U CN 201220635167 CN201220635167U CN202996004U CN 202996004 U CN202996004 U CN 202996004U CN 201220635167 CN201220635167 CN 201220635167 CN 201220635167 U CN201220635167 U CN 201220635167U CN 202996004 U CN202996004 U CN 202996004U
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- meter reading
- reading terminal
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Abstract
The utility model relates to a meter reading terminal based on a wired television network. The meter reading terminal comprises a CPU (Central Processing Unit), wherein the signal input and output end of the CPU is respectively connected to an electric energy meter acquisition module used for acquiring ammeter data of a user and a memory used for storing the ammeter data information of the user, and is also communicated with a far-end main station through an EOC (Ethernet Over Cable) module. The meter reading terminal based on the wired television network plays the advantages of wide bandwidth, low cost and easy popularization of the wired television network efficiently without affecting the frequency of the wired television network by utilizing an EOC modulation technology and realizes acquisition needs of collective meter reading in residential quarters, adopts 32-bit ARM (Advanced Risc Machellones) core high-speed processor STM32F103 as the CPU for the data acquisition, treatment and communication maintenance, provides a RS485 communication function and acquires ammeter data of users, adopts NANDFLASH as a storage chip and carries an embedded file system for the storage of the ammeter data of the users, and adopts a colorful LCD (Liquid Crystal Display) and keys to provide interactive operation and satisfy inquiry need of the users.
Description
Technical field
The utility model relates to a kind of meter reading terminal, especially a kind of meter reading terminal based on cable TV network.
Background technology
In recent years, along with China's power construction development is rapid, two net transformations are tentatively completed in some area, and the user has not only required electric use, and requires to use high-quality electricity, enjoys better service.Improve power department electricity charge real-time clearing level, setting up the unified electric power large market in zone and even the whole nation has become the common recognition of all power departments, simultaneously, power supply department is also more and more urgent to the requirement of user's side anti-theft electricity technology, and is more and more stronger to the demand of critical point and outfit measure monitor point electricity consumption condition monitoring.
At present electric system distribution automation and distribution transformer monitoring have entered the stage of greatly developing, and comprehensive installation has been carried out in most of city, resident's centralized automatic meter-reading be more widely used a kind of ageing strong, reliability is high, the scheme of reduced investment.Copy middle needs reliably and the communication network of not overlapping investment construction is absolutely necessary at collection, at present the automatic centralized reading system exists and is difficult to cover all residential quarter actual conditions, mostly have a style of one's own, be difficult to enterprise in original charge and information network get involved, therefore also can't utilize actual a large number of users to carry out the l-G simulation test of this system, bench-scale testing is difficult to error correcting capability and the network service function of checking disposal system, having increased a large amount of costs drops into, and interactive low, the user can't inquire about power information and the historical detail of oneself timely.
The utility model content
The purpose of this utility model is to provide a kind of and utilizes existing cable television communication network to realize resident centralized meter reading, the meter reading terminal based on cable TV network that cost is low.
For achieving the above object, the utility model has adopted following technical scheme: a kind of meter reading terminal based on cable TV network, comprise central processor CPU, its signal input output end is connected with the electric energy meter acquisition module that be used for to gather the electric supply meter data, the storer that is used for storage electric supply meter data message respectively, and its signal input output end also passes through EOC module and the communication of far-end main website.
The signal input part of described central processor CPU is connected with button, and its signal output part is connected with display.
Described central processor CPU adopts the STM32F103 digital signal processor, and the serial ports of central processor CPU is connected with the electric energy meter acquisition module, and the electric energy meter acquisition module is connected with electric supply meter by the RS485 bus; The input/output terminal of central processor CPU is connected with the communication management module, and the communication management module is by bus and ethernet module communication, and ethernet module is by EOC module and the communication of far-end main website.
Described storer adopts NAND FLASH storer, and NAND FLASH storer carries embedded file system.
Described display adopts the color LCD liquid crystal display.
The serial ports of described communication management module is as service port, and PC is by service port and central processor CPU communication.
As shown from the above technical solution, the utility model has utilized modulation EOC technology, under the prerequisite of the frequency that does not affect cable TV network, bring into play effectively that cable TV network bandwidth, cost are low, easy universal advantage, realized the collection demand that the residential quarter collection is copied; Adopt the high speed processor STM32F103 of 32 ARM cores as central processor CPU, carry out data sampling and processing and communication and safeguard; The RS485 communication function is provided, gathers the electric supply meter data; Adopt NAND FLASH as storage chip, carry embedded file system, carry out the storage of electric supply meter data; Adopt color LCD liquid crystal display and button that interactive operation is provided, satisfy user's query demand.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model.
Embodiment
A kind of meter reading terminal based on cable TV network, comprise central processor CPU 1, its signal input output end is connected with the electric energy meter acquisition module 2 that be used for to gather the electric supply meter data, the storer that is used for storage electric supply meter data message respectively, its signal input output end is also by EOC module 5 and the communication of far-end main website, as shown in Figure 1.This terminal is loaded in the ammeter box of residential quarter, set up cable TV network in the residential quarter, the terminal uplink communication has adopted modulation EOC technology, through carry out data transmission after ovennodulation in concentric cable, its frequency does not take the CATV (cable television) frequency band, with the CATV (cable television) frequency coexistence with ethernet signal, utilize concentric cable, realize the collection of data and upload, avoid again setting up passage and cause ancillary cost, cost is lower.
As shown in Figure 1, the signal input part of described central processor CPU 1 is connected with button 7, and its signal output part is connected with display, and described display adopts LCD LCDs 6.Button 7 and LCD LCDs 6 in order to user interaction, provide the user family to be shown the inquiry of the data such as real time data, historical data and payment information.
As shown in Figure 1, described central processor CPU 1 adopts the STM32F103 digital signal processor, and its maximum operation frequency 72MHz carries nearly 5 serial ports, guarantees that the hardware of data acquisition needs, rapidity and real-time that data are processed.The serial ports of central processor CPU 1 is connected with electric energy meter acquisition module 2, electric energy meter acquisition module 2 is connected with electric supply meter by the RS485 bus, the RS485 interface is connected with electric supply meter, is responsible for gathering the real-time and freezing data of ammeter, and maximum can gather 32 electric energy meters.The input/output terminal of central processor CPU 1 is connected with communication management module 4, and communication management module 4 is by bus and ethernet module communication, and ethernet module is by EOC module 5 and the communication of far-end main website.
As shown in Figure 1, described storer adopts NAND FLASH storer 3, it is large that NAND FLASH storer 3 has a capacity, the advantages such as rewriting speed is fast, be fit to the storage of mass data, NAND FLASH storer 3 carries embedded file system, but the ammeter data that storage of collected arrives, and the memory cycle is one month.The serial ports of described communication management module 4 is as service port, and PC is by service port and central processor CPU 1 communication, the user according under connect address and the agreement of ammeter, by service port, terminal parameter is arranged.
When work, central processor CPU 1 utilizes the RS485 channel by electric energy meter acquisition module 2, utilizes corresponding electric energy meter host-host protocol, sends data request command, gathers the electric energy meter data; By file system with the data that collect according to the regular time gap periods, store in NAND FLASH storer 3; By LCD LCDs 6 and button 7, real-time shows data demonstration and historical detailed data; By EOC module 5 incoming coaxial cables, upload the power information of respective user and the historical electricity consumption data of storage.
In sum, the utility model has utilized modulation EOC technology, under the prerequisite of the frequency that does not affect cable TV network, brings into play effectively that cable TV network bandwidth, cost are low, easy universal advantage, has realized the collection demand that the residential quarter collection is copied.
Claims (6)
1. meter reading terminal based on cable TV network, it is characterized in that: comprise central processor CPU (1), its signal input output end is connected with the electric energy meter acquisition module (2) that be used for to gather the electric supply meter data, the storer that is used for storage electric supply meter data message respectively, and its signal input output end is also by EOC module (5) and the communication of far-end main website.
2. the meter reading terminal based on cable TV network according to claim 1, it is characterized in that: the signal input part of described central processor CPU (1) is connected with button (7), and its signal output part is connected with display.
3. the meter reading terminal based on cable TV network according to claim 1, it is characterized in that: described central processor CPU (1) adopts the STM32F103 digital signal processor, the serial ports of central processor CPU (1) is connected with electric energy meter acquisition module (2), and electric energy meter acquisition module (2) is connected with electric supply meter by the RS485 bus; The input/output terminal of central processor CPU (1) is connected with communication management module (4), and communication management module (4) is by bus and ethernet module communication, and ethernet module is by EOC module (5) and the communication of far-end main website.
4. the meter reading terminal based on cable TV network according to claim 1, is characterized in that: described storer employing NAND FLASH storer (3), NAND FLASH storer (3) lift-launch embedded file system.
5. the meter reading terminal based on cable TV network according to claim 2, is characterized in that: described display employing LCD LCDs (6).
6. the meter reading terminal based on cable TV network according to claim 3, it is characterized in that: the serial ports of described communication management module (4) is as service port, and PC is by service port and central processor CPU (1) communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635167 CN202996004U (en) | 2012-11-27 | 2012-11-27 | Meter reading terminal based on wired television network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635167 CN202996004U (en) | 2012-11-27 | 2012-11-27 | Meter reading terminal based on wired television network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996004U true CN202996004U (en) | 2013-06-12 |
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ID=48567152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635167 Expired - Lifetime CN202996004U (en) | 2012-11-27 | 2012-11-27 | Meter reading terminal based on wired television network |
Country Status (1)
| Country | Link |
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| CN (1) | CN202996004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-11-27 CN CN 201220635167 patent/CN202996004U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: CSG SMART ELECTRIC 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: 20130612 |
|
| CX01 | Expiry of patent term |