CN201608714U - Carrier communication circuit - Google Patents
Carrier communication circuit Download PDFInfo
- Publication number
- CN201608714U CN201608714U CN2009202017637U CN200920201763U CN201608714U CN 201608714 U CN201608714 U CN 201608714U CN 2009202017637 U CN2009202017637 U CN 2009202017637U CN 200920201763 U CN200920201763 U CN 200920201763U CN 201608714 U CN201608714 U CN 201608714U
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- Prior art keywords
- communication module
- carrier communication
- optical coupling
- coupled isolation
- light
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Abstract
The utility model discloses a carrier communication circuit comprising a carrier communication module and an MCU (Microprogrammed Control Unit), wherein a light-coupled isolation communication module is also electrically connected between the carrier communication module and the MCU; and one end of the light-coupled isolation communication module is electrically connected with the carrier communication module, and the other end of the light-coupled isolation communication module is electrically connected with the MCU. By adopting the carrier communication module, after an electric energy meter is electrified, the light-coupled isolation communication module plays a better role of isolation between the carrier communication module and the MCU so that the communication terminal of the carrier communication module can be in a low-level state at normal state; and at the moment, the battery power consumption of the electric energy meter reaches a normal level, thereby effectively reducing the power consumption of batteries, prolonging the service lives of the batteries and saving the use cost.
Description
Technical field
The utility model relates to a kind of carrier communication circuit.
Background technology
The carrier communication circuit of existing electric energy meter comprises carrier communication module and microprocessor (MCU), and general the employing directly is connected the carrier communication module with microprocessor (MCU).Like this after electric energy meter powers on, be in the state (just needing powered battery under the situation of high level state) of high level under the communication terminal normality of carrier communication module, directly discharge over the ground, like this, the level of power consumption of the battery in the electric energy meter will reach 4mA above (normal condition is below 40 μ A), thereby causes battery electric quantity to exhaust rapidly, the useful life of battery short (not reaching rated wear), to often change battery, increase use cost.
The utility model content
The utility model provides a kind of battery power consumption slow at the above-mentioned deficiency of prior art, and the battery long service life need not to change battery, and the low carrier communication circuit of use cost.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of carrier communication circuit, comprise carrier communication module, microprocessor (MCU), also be electrically connected with the light-coupled isolation communication module between described carrier communication module and the MCU, one end of described light-coupled isolation communication module is electrically connected with MCU, and the other end of described light-coupled isolation communication module is electrically connected with the carrier communication module.
Above-mentioned light-coupled isolation communication module is formed by three optical coupling isolators are parallel, i.e. first optical coupling isolator, second optical coupling isolator and the 3rd optical coupling isolator; One end of described light-coupled isolation communication module is electrically connected with MCU, the other end of described light-coupled isolation communication module is electrically connected with the carrier communication module and is meant: the input of described first optical coupling isolator is connected with the TXD of microprocessor end, and the output of first optical coupling isolator is connected with the TXD1 end of carrier communication module; The output of described second optical coupling isolator is connected with the RXD of microprocessor end, and the input of second optical coupling isolator is connected with the RXD1 end of carrier communication module; The input of described the 3rd optical coupling isolator is connected with the ZB SET end of microprocessor, and the output of the 3rd optical coupling isolator is connected with the ZB SET1 end of carrier communication module.
After electric energy meter powers on, the light-coupled isolation communication module plays the good isolation effect between carrier communication module and MCU, make and be in low level state under the communication terminal normality of carrier communication module, at this moment, the battery power consumption grade of electric energy meter reaches normal level (generally below 40 μ A), thereby effectively reduce the power consumption of battery, prolonged the useful life of battery, saved use cost.
Description of drawings
Fig. 1 is a carrier communication circuit structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of light-coupled isolation communication module of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done and to be described in further detail.
As shown in Figure 1, a kind of carrier communication circuit of the present utility model, comprise carrier communication module, MCU, also be electrically connected with the light-coupled isolation communication module between described carrier communication module and the MCU, be that described light-coupled isolation communication module one end is electrically connected with MCU, the light-coupled isolation communication module other end is electrically connected with the carrier communication module.
As shown in Figure 2, above-mentioned light-coupled isolation communication module is formed by three optical coupling isolators are parallel, i.e. the first optical coupling isolator T1, the second optical coupling isolator T2 and the 3rd optical coupling isolator T3; One end of described light-coupled isolation communication module is electrically connected with MCU, the other end of described light-coupled isolation communication module is electrically connected with the carrier communication module and is meant: the input of the described first optical coupling isolator T1 is connected with the TXD of microprocessor end, and the output of the first optical coupling isolator T1 is connected with the TXD1 end of carrier communication module; The output of the described second optical coupling isolator T2 is connected with the RXD of microprocessor end, and the input of the second optical coupling isolator T2 is connected with the RXD1 end of carrier communication module; The input of described the 3rd optical coupling isolator T3 is connected with the ZB SET end of microprocessor, and the output of the 3rd optical coupling isolator T3 is connected with the ZB SET1 end of carrier communication module.
After electric energy meter powers on, the light-coupled isolation communication module plays the good isolation effect between carrier communication module and MCU, make and be in low level state under the communication terminal normality of carrier communication module, at this moment, the battery power consumption grade of electric energy meter reaches normal level (generally below 40 μ A), thereby effectively reduce the power consumption of battery, prolonged the useful life of battery, saved use cost.
Optical coupling isolator in the light-coupled isolation communication module that the utility model uses, model is NEC2501, and concrete circuit theory diagrams are as shown in Figure 2.
Claims (2)
1. a carrier communication circuit comprises carrier communication module, microprocessor, it is characterized in that: also be electrically connected with the light-coupled isolation communication module between described carrier communication module and the microprocessor; One end of described light-coupled isolation communication module is electrically connected with the carrier communication module, and the other end of described light-coupled isolation communication module is electrically connected with microprocessor.
2. according to the described carrier communication circuit of claim 1, it is characterized in that: above-mentioned light-coupled isolation communication module is made up of three parallel optical coupling isolators, i.e. first optical coupling isolator, second optical coupling isolator and the 3rd optical coupling isolator; One end of above-mentioned light-coupled isolation communication module is electrically connected with the carrier communication module, the other end of described light-coupled isolation communication module electrically connects as with microprocessor: the input of described first optical coupling isolator is connected with the TXD of microprocessor end, and the output of first optical coupling isolator is connected with the TXD1 end of carrier communication module; The output of described second optical coupling isolator is connected with the RXD of microprocessor end, and the input of second optical coupling isolator is connected with the RXD1 end of carrier communication module; The input of described the 3rd optical coupling isolator is connected with the ZB SET end of microprocessor, and the output of the 3rd optical coupling isolator is connected with the ZB SET1 end of carrier communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202017637U CN201608714U (en) | 2009-12-01 | 2009-12-01 | Carrier communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202017637U CN201608714U (en) | 2009-12-01 | 2009-12-01 | Carrier communication circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608714U true CN201608714U (en) | 2010-10-13 |
Family
ID=42953414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202017637U Expired - Lifetime CN201608714U (en) | 2009-12-01 | 2009-12-01 | Carrier communication circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727900A (en) * | 2017-10-30 | 2018-02-23 | 宁波三星医疗电气股份有限公司 | A kind of modular electric energy meter |
-
2009
- 2009-12-01 CN CN2009202017637U patent/CN201608714U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727900A (en) * | 2017-10-30 | 2018-02-23 | 宁波三星医疗电气股份有限公司 | A kind of modular electric energy meter |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 315191 Yinzhou Industrial Park, Zhejiang, Ningbo, Yinzhou District, Ningbo Patentee after: NINGBO SANXING MEDICAL ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo Sanxing Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |