CN200983196Y - A RS485 ammeter automatic reading terminal - Google Patents
A RS485 ammeter automatic reading terminal Download PDFInfo
- Publication number
- CN200983196Y CN200983196Y CN 200620048548 CN200620048548U CN200983196Y CN 200983196 Y CN200983196 Y CN 200983196Y CN 200620048548 CN200620048548 CN 200620048548 CN 200620048548 U CN200620048548 U CN 200620048548U CN 200983196 Y CN200983196 Y CN 200983196Y
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- CN
- China
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- ammeter
- meter reading
- reading terminal
- chip microcomputer
- automatic meter
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Abstract
The utility model relates to a wireless automatic meter reading terminal of a RS485 ammeter which comprises a clock unit connected with a single chip microcomputer, a storage unit, a radio communication unit and a TTL/RS485 signal switching circuit connected with the single chip microcomputer. The utility model solves the problems of bad communication reliability, low communication rate and efficiency and shorter communication distance in the wireless meter reading process of the RS485 ammeter.
Description
Technical field
The utility model relates to a kind of RS485 ammeter wireless automatic meter reading terminal.
Background technology
Enter the late nineteen eighties in last century, people bring into use keyboard-type write by hand machine, but owing to machine, table do not have interface, all disadvantages of manual metering still exist.In order to solve the problem of difficult charge, various IC-card formula tables have been produced.Now with regard to IC-card formula table, mainly there is following problem: one,, can't calculate of that month consumption loss because IC-card belongs to the forward purchasing consumption.For computed losses, still need manual metering.Two, table meter running status can't be known, the inspection regularly of also need sending someone, and also artificial inspection also can't be concluded table meter quality.It should be noted that especially that in rural power grids and samll cities and towns' electrical network the resident lives and relatively disperses, the resident pays dues distant, and IC-card formula table can't obtain promoting.After entering the nineties, centralized automatic meter-reading adopts the cable data transmission substantially.If come Data transmission with wired, technology is simple, ripe, is easy to realize; The installation work amount of constructing is big, and netting twine is subject to artificial destruction, and after circuit damaged, the trouble spot is easy-to-search not, and the rural power grids that comparatively disperse implement just to become difficult more living.Wireless kilowatt meter reading-out system also began should use gradually in kilowatt meter reading-out system in recent years, through operation in a few years, the problem that present wireless kilowatt meter reading-out system mainly exists has following some problem: one, wireless communication hardware adopts mimic channel, change with ambient temperature and humidity, frequency shift (FS) is serious, and communication reliability is bad; Two, traffic rate is low, and efficient is low; Three, communication distance is nearer, and the kilowatt meter reading-out system circumstance complication is difficult to use; Four, the whole immature wireless communication technology that causes of wireless communication technology is slower in the whole popularization of the industry of checking meter; Five, system power dissipation is bigger, and service time is short; Six, the whole cost of radio meter register is higher, is difficult to batch machining, is difficult to promote.
Summary of the invention
Technical problem to be solved in the utility model is: at problems of the prior art, propose a kind of high wireless automatic meter reading terminal of telecommunication, communication reliability that is suitable for the RS485 ammeter.
The utility model is achieved in that
A kind of RS485 ammeter wireless automatic meter reading terminal comprises the clock unit, storage unit, the radio communication unit that link to each other with single-chip microcomputer, with the TTL/RS485 signaling conversion circuit that links to each other with single-chip microcomputer.
Described TTL/RS485 signaling conversion circuit is made up of SN75176B chip and peripheral circuit thereof; Its input end links to each other with the RS485 ammeter, and output terminal links to each other with the I/O mouth of described single-chip microcomputer.
Described radio communication unit is the SRWF-501-50 type micropower digital transmission module of Shanghai Sunray Technology Co., Ltd..
Described storage unit is a ferroelectric memory.
The beneficial effects of the utility model:
The utility model is owing to use the TTL/RS485 signaling conversion circuit, and adopt the SRWF-501-50 type micropower digital transmission module of commercially available Shanghai Sunray Technology Co., Ltd., under same power consumption and emissive power, can strengthen communication distance, improve the reliability of system communication.Adopt ferroelectric memory simultaneously, can preserve the impulse sampling signal of every road ammeter in real time.Owing to adopt wireless communication designs, need not line, avoid because the fault that circuit causes.
Description of drawings
Fig. 1 is the circuit theory diagrams of RS485 ammeter wireless automatic meter reading terminal.
Fig. 2 is the circuit diagram of TTL/RS485 signaling conversion circuit.
Fig. 3 is single-chip microcomputer and peripheral circuit diagram thereof.
Embodiment
Referring to accompanying drawing 1, the utility model RS485 ammeter wireless automatic meter reading terminal comprises TTL/RS485 signaling conversion circuit, wireless communication module, single-chip microcomputer and peripheral clock unit, ferroelectric memory thereof.The signal of RS485 ammeter links to each other by the input end of data line with the TTL/RS485 signaling conversion circuit, and the output terminal of TTL/RS485 signaling conversion circuit links to each other with the I/O mouth of single-chip microcomputer, and the control end of single-chip microcomputer links to each other with the I/O mouth of wireless communication module.Wherein wireless communication module adopts the SRWF-501-50 type micropower digital transmission module of commercially available Shanghai Sunray Technology Co., Ltd.; Single-chip microcomputer is selected 8 machines of commercially available Atmel company for use, referring to accompanying drawing 3; The TTL/RS485 signaling conversion circuit is selected the SN75176B chip of commercially available TIX for use, referring to accompanying drawing 2; Clock unit is selected the PCF8563 module of commercially available Philips company for use, and ferroelectric memory is selected the 24C32A module of commercially available RAMTRON company for use.
Claims (4)
1, a kind of RS485 ammeter wireless automatic meter reading terminal comprises the clock unit, storage unit, the radio communication unit that link to each other with single-chip microcomputer, it is characterized in that: also comprise the TTL/RS485 signaling conversion circuit that links to each other with single-chip microcomputer.
2, RS485 ammeter wireless automatic meter reading terminal according to claim 1, it is characterized in that: described TTL/RS485 signaling conversion circuit is made up of SN75176B chip and peripheral circuit thereof; Its input end links to each other with the RS485 ammeter, and output terminal links to each other with the I/O mouth of described single-chip microcomputer.
3, RS485 ammeter wireless automatic meter reading terminal according to claim 1 is characterized in that: described radio communication unit is the SRWF-501-50 type micropower digital transmission module of Shanghai Sunray Technology Co., Ltd..
4, RS485 ammeter wireless automatic meter reading terminal according to claim 1, it is characterized in that: described storage unit is a ferroelectric memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048548 CN200983196Y (en) | 2006-12-05 | 2006-12-05 | A RS485 ammeter automatic reading terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048548 CN200983196Y (en) | 2006-12-05 | 2006-12-05 | A RS485 ammeter automatic reading terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983196Y true CN200983196Y (en) | 2007-11-28 |
Family
ID=38910347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048548 Expired - Fee Related CN200983196Y (en) | 2006-12-05 | 2006-12-05 | A RS485 ammeter automatic reading terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983196Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346817A (en) * | 2013-06-26 | 2013-10-09 | 成都网动光电子技术股份有限公司 | Electric meter data receiving and sending terminal with good stability |
| CN103383410A (en) * | 2013-07-02 | 2013-11-06 | 重庆跃腾电器有限公司 | Multifunctional power meter |
| CN103632519A (en) * | 2012-08-29 | 2014-03-12 | 胡燕祝 | Combustible gas leakage monitoring and remote meter reading system |
| CN104464245A (en) * | 2014-12-09 | 2015-03-25 | 国网安徽省电力公司淮南供电公司 | Portable field power consumption inspection device and power consumption data acquisition method |
-
2006
- 2006-12-05 CN CN 200620048548 patent/CN200983196Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632519A (en) * | 2012-08-29 | 2014-03-12 | 胡燕祝 | Combustible gas leakage monitoring and remote meter reading system |
| CN103346817A (en) * | 2013-06-26 | 2013-10-09 | 成都网动光电子技术股份有限公司 | Electric meter data receiving and sending terminal with good stability |
| CN103383410A (en) * | 2013-07-02 | 2013-11-06 | 重庆跃腾电器有限公司 | Multifunctional power meter |
| CN104464245A (en) * | 2014-12-09 | 2015-03-25 | 国网安徽省电力公司淮南供电公司 | Portable field power consumption inspection device and power consumption data acquisition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NIE GUANGYI Free format text: FORMER OWNER: SHANGHAI TANGRAY INFORMATION TECHNOLOGY CO., LTD. Effective date: 20101019 Owner name: MAO JIAXING WEI JIANJUN |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201203 TOWER B, 5/F, NO.201, KEYUAN ROAD, ZHANGJIANG HIGH-TECK. PARK, PUDONG NEW DISTRICT, SHANGHAI TO: 201203 5/F, NO.201, KEYUAN ROAD, ZHANGJIANG HIGH-TECH. PARK, PUDONG NEW DISTRICT, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101019 Address after: Shanghai city 201203 Keyuan Road, Pudong New Area Zhangjiang hi tech Park No. 201 5 floor Co-patentee after: Mao Jiaxing Patentee after: Nie Guangyi Co-patentee after: Wei Jianjun Address before: Shanghai city 201203 Keyuan Road, Pudong New Area Zhangjiang hi tech Park No. 201 5 floor B block Patentee before: Shanghai Tangray Information Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: MAO JIAXING WEI JIANJUN Effective date: 20121023 Owner name: SHANGHAI SUNRAY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NIE GUANGYI Effective date: 20121023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121023 Address after: 201203, Shanghai, Pudong New Area Zhangjiang hi tech park, No. 560, 8, midsummer Road Patentee after: Shanghai Sunray Technology Co., Ltd. Address before: Shanghai city 201203 Keyuan Road, Pudong New Area Zhangjiang hi tech Park No. 201 5 floor Patentee before: Nie Guangyi Patentee before: Mao Jiaxing Patentee before: Wei Jianjun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |