CN2453597Y - Distribution network power communication device - Google Patents
Distribution network power communication device Download PDFInfo
- Publication number
- CN2453597Y CN2453597Y CN 00212481 CN00212481U CN2453597Y CN 2453597 Y CN2453597 Y CN 2453597Y CN 00212481 CN00212481 CN 00212481 CN 00212481 U CN00212481 U CN 00212481U CN 2453597 Y CN2453597 Y CN 2453597Y
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- China
- Prior art keywords
- signal output
- interface circuit
- output terminal
- connects
- output part
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Abstract
The utility model relates to a distribution network power communication device which can directly utilize a transmission line to do communication work. The utility model has the technical proposal that a signal output terminal of a current mutual inductor is connected with a signal input terminal of an A/D converter by a filter circuit; a signal output terminal of the A/D converter is connected with a I/O interface circuit; a signal output terminal of the I/O interface circuit is connected with an SCM; a signal output terminal of the SCM is connected with an optoelectronic isolator by the interface circuit; a signal output terminal of the optoelectronic isolator is connected with a control terminal of a controlled silicon, and a signal output terminal of the controlled silicon is connected with a modulation transformer. The utility model has the advantages of low cost and good communication effect. The communication between different broadcasting stations can be realized when the utility model is used.
Description
The utility model relates to a kind of power distribution network power communication device.
At present, many connection, the cost height of adopting separately of power distribution network power communication.
The purpose of this utility model is to provide a kind of power distribution network power communication device that can directly utilize power transmission line to carry out communication.
The technical solution of the utility model: a kind of power distribution network power communication device, constitute by single-chip microcomputer etc., it is characterized in that: have current transformer, the signal output part of current transformer connects the signal input part of A/D converter through filter circuit, the signal output part of A/D converter connects the I/O interface circuit, and the signal output part of I/O interface circuit connects single-chip microcomputer; The signal output part of single-chip microcomputer connects photoisolator through the I/O interface circuit, and the signal output part of photoisolator connects the silicon controlled control end, and the silicon controlled signal output part connects modulation transformer.
Advantage of the present utility model: utilize transmission line to carry out communication, cost is low, and communication effect is good, can finish two electrical networks and stride the communication of platform district voluntarily.
Narrate embodiment of the present utility model in conjunction with the accompanying drawings.
Fig. 1 is circuit theory diagrams of the present utility model.
Current transformer 4 is arranged on the electrical network, the signal output part of current transformer 4 connects the signal input part of filter circuit 5 (selecting TLC04 for use), the signal output part of filter circuit 5 connects the signal input part of A/D converter 7 (selecting AD574A for use), the signal output part of the A/D converter 7 just data wire of A/D converter is connected with the signal input part of I/O interface circuit 8 (selecting 8255A for use), and the signal output part of I/O interface circuit 8 just data wire is connected with the data wire of single-chip microcomputer 1 (selecting 8031 for use); Single-chip microcomputer 1 also is circumscribed with the decoder 2 (selecting 74LS138 for use) that gating signal can be provided to the I/O interface circuit, and the signal output part of decoder connects the signal controlling end of I/O interface circuit 8, A/D converter; The signal output part of single-chip microcomputer 1 just pin RESET, RD, WR is connected with pin RESET, RD, the WR of I/O interface circuit, and I/O interface circuit one output single-chip microcomputer sends the pin of signal through resistance R
1Connect the base stage of amplifying triode 9, the collector electrode of amplifying triode 9 connects the signal input part of photoisolator 10 (selecting MOC3201 for use), the signal output part of photoisolator 10 connects the control end of controllable silicon 6, and the silicon controlled signal output part connects modulation transformer 3 through inductance L.Resistance R
2, R
3, capacitor C
1Constitute filter circuit, play the signal filtering effect, the resistance R that links to each other with controllable silicon 6 control ends
4Control silicon control end is played metering function.
During work, the power frequency modulated communication signal is superimposed upon in the electric current of electrical network, after current transformer 4 is gathered, removes the outstanding communication signal of load current through filter circuit, and communication signal is sent to I/O interface circuit 8 through A/D converter 7, is handled by single-chip microcomputer 1.The signal of single-chip microcomputer output through I/O interface circuit 8, amplifying triode 9, photoisolator, controllable silicon, be sent to modulation transformer 3, modulation transformer is coupled to modulation signal on the 10KV electrical network, finishes the transmission of signal.
Claims (1)
1, a kind of power distribution network power communication device, constitute by single-chip microcomputer etc., it is characterized in that: have current transformer, the signal output part of current transformer connects the signal input part of A/D converter through filter circuit, the signal output part of A/D converter connects the I/O interface circuit, and the signal output part of I/O interface circuit connects single-chip microcomputer; The signal output part of single-chip microcomputer connects photoisolator through the I/O interface circuit, and the signal output part of photoisolator connects the silicon controlled control end, and the silicon controlled signal output part connects modulation transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212481 CN2453597Y (en) | 2000-06-29 | 2000-06-29 | Distribution network power communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212481 CN2453597Y (en) | 2000-06-29 | 2000-06-29 | Distribution network power communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453597Y true CN2453597Y (en) | 2001-10-10 |
Family
ID=33578982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212481 Expired - Fee Related CN2453597Y (en) | 2000-06-29 | 2000-06-29 | Distribution network power communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453597Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714521A (en) * | 2009-10-26 | 2012-10-03 | 索尼公司 | Device for use in a power line communication system, power line communication systems and power line communication method |
-
2000
- 2000-06-29 CN CN 00212481 patent/CN2453597Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714521A (en) * | 2009-10-26 | 2012-10-03 | 索尼公司 | Device for use in a power line communication system, power line communication systems and power line communication method |
| US9025647B2 (en) | 2009-10-26 | 2015-05-05 | Sony Corporation | Device for use in a power line communication system, power line communication systems and power line communication method |
| CN102714521B (en) * | 2009-10-26 | 2015-11-25 | 索尼公司 | For the device of electric line communication system, electric line communication system and power line communication method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011010 |