CN100456723C - Wireless network converter - Google Patents
Wireless network converter Download PDFInfo
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- CN100456723C CN100456723C CNB2006101293274A CN200610129327A CN100456723C CN 100456723 C CN100456723 C CN 100456723C CN B2006101293274 A CNB2006101293274 A CN B2006101293274A CN 200610129327 A CN200610129327 A CN 200610129327A CN 100456723 C CN100456723 C CN 100456723C
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- modular converter
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- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000008054 signal transmission Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention relates to a novel wireless network converter, characterized in that its circuit comprises A/D converting module, DSP coding module, digital signal processing module, D/A converting circuit and signal emitting circuit connected in turn to make data transmission; its system is powered by AC/DC power supply module, and comprises modulating and demodulating circuits, connected with signal emitting circuit and signal receiving circuit, respectively; by A/D conversion and processing of system control module (control signal converting circuit), the output of the signal receiving circuit is coded/decoded by serial communication coding/decoding circuit and then inputted into serial interface. And the invention adopts video network conversion technique, and combines with wireless network transmission, implements common CAMERA's video signal conversion and wireless network system access, implements wireless network control, and provides an effective and shortcut network access window for CAMERA of the existing monitoring system. And the invention has characters of simple structure, reasonable design, reliable performance and wide application.
Description
Technical field
The present invention relates to Radio Network System, particularly a kind of wireless network converter.
Background technology
At present, supervisory control system has been widely used in every field, and along with the continuous development of science and technology, the user is improving constantly the requirement of supervisory control system, and single video type of attachment can not satisfy user's requirement fully.Along with the extensive use of network technology, require surveillance to combine the development trend that is inevitable with network technology, especially wireless network inserts the main flow that will become future network communication.Tradition supervisory control system CAMERA output be video compositing signal, can only carry out record by video line, video standby system, can't directly carry out network insertion, it is too high that the supervisory control system of installing is changed new-type network CAMERA cost, and this just requires a kind of new network transducer to satisfy the demand of network switch.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, a kind of simple in structure, dependable performance is provided, is widely used, adapts to the wireless network converter that conventional video is connected with wireless network.
The technical solution adopted in the present invention is for achieving the above object: a kind of wireless network converter is characterized in that this transducer is connected to form by an A/D modular converter, dsp code module, digital signal processing module, D/A modular converter, signal transmission circuit, modulation-demodulation circuit, signal receiving circuit, the 2nd A/D modular converter, system control module, serial communication circuit coding-decoding circuit, serial line interface and AC/DC power module; Wherein, a described A/D modular converter, dsp code module, digital signal processing module, D/A modular converter, signal transmission circuit connect successively and carry out transfer of data, the modulation-demodulation circuit that is provided with simultaneously is connected with signal receiving circuit with signal transmission circuit respectively, described signal receiving circuit is connected with the 2nd A/D modular converter, the 2nd A/D modular converter is connected with system control module again, its output is through the encoding and decoding of serial communication circuit coding-decoding circuit, input string line interface; Described transducer each several part drives power supply by the AC/DC power module.
The invention has the beneficial effects as follows: in order to adapt to the network system extensive use, especially in order to adapt to the conveniently characteristics of wireless network, adopted the video network switch technology, the combining wireless network transmission technology is realized the vision signal conversion of common CAMERA and the function of wireless access network system; Realize the network wireless controlled function simultaneously, for the CAMERA that has supervisory control system provides a network insertion window effectively efficiently.The present invention is simple in structure, reasonable in design, dependable performance, be widely used.
Description of drawings
Fig. 1 is a circuit side connector block diagram of the present invention;
Fig. 2 is that function of the present invention realizes block diagram.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, details are as follows for feature:
As shown in Figure 1, circuit of the present invention is connected with A/D modular converter, dsp code module, digital signal processing module, D/A conversion successively, signal transmission circuit carries out transfer of data; This circuit drives power supply by the AC/DC power module; Being provided with modulation-demodulation circuit is connected with signal receiving circuit with signal transmission circuit respectively; Signal receiving circuit is handled through A/D conversion, system control module (control signal converting circuit), and it is exported through the encoding and decoding of serial communication circuit coding-decoding circuit, input string line interface.
Described serial line interface adopts 485 interfaces or RS232 interface.
As shown in Figure 2, the monitoring videosignal device connects wireless network converter, and wireless network converter is connected with wireless router; The vision signal input transmits and receives signal, carries out wireless network transmissions; Each PC is in parallel with wireless router.
Original supervisory control system CAMERA output composite video signal is carried out shunt handle, the direct access of radio network transducer of output signal carries out local area network (LAN) by wireless router.
It is that composite video signal is converted to the digital signal that network can insert that wireless network of the present invention inserts transducer, then digital signal is carried out digital-to-analogue conversion, and the analog signal after the conversion by antenna output, realizes that wireless network inserts after ovennodulation.Thereby realize the Internet video access function, realize function simultaneously the supervisory control system controlled in wireless.
Above-mentioned with reference to embodiment to the detailed description that wireless network converter carries out, be illustrative rather than determinate, therefore, should belong within protection scope of the present invention in the variation and the modification that do not break away under the general plotting of the present invention.
Claims (2)
1, a kind of wireless network converter is characterized in that this transducer is connected to form by an A/D modular converter, dsp code module, digital signal processing module, D/A modular converter, signal transmission circuit, modulation-demodulation circuit, signal receiving circuit, the 2nd A/D modular converter, system control module, serial communication circuit coding-decoding circuit, serial line interface and AC/DC power module; Wherein, a described A/D modular converter, dsp code module, digital signal processing module, D/A modular converter, signal transmission circuit connect successively and carry out transfer of data, the modulation-demodulation circuit that is provided with simultaneously is connected with signal receiving circuit with signal transmission circuit respectively, described signal receiving circuit is connected with the 2nd A/D modular converter, the 2nd A/D modular converter is connected with system control module again, its output is through the encoding and decoding of serial communication circuit coding-decoding circuit, input string line interface; Described transducer each several part drives power supply by the AC/DC power module.
2, wireless network converter according to claim 1 is characterized in that described serial line interface adopts 485 interfaces or RS232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101293274A CN100456723C (en) | 2006-11-09 | 2006-11-09 | Wireless network converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101293274A CN100456723C (en) | 2006-11-09 | 2006-11-09 | Wireless network converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1949730A CN1949730A (en) | 2007-04-18 |
| CN100456723C true CN100456723C (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101293274A Expired - Fee Related CN100456723C (en) | 2006-11-09 | 2006-11-09 | Wireless network converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN100456723C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617884B (en) * | 2013-11-04 | 2017-09-15 | 无锡华润矽科微电子有限公司 | A kind of wireless charging digital demodulating circuit and method |
| CN104092989A (en) * | 2014-07-11 | 2014-10-08 | 国家电网公司 | Distribution line inspection device based on wireless network video transmission |
| CN104932373A (en) * | 2015-06-09 | 2015-09-23 | 东华大学 | Intelligent industrial network protocol wireless converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353507A (en) * | 2000-11-08 | 2002-06-12 | 廖壬秋 | Core IC for implementing carrier communication over low-voltage power transmission line by software and radio technique |
| CN1558577A (en) * | 2004-01-16 | 2004-12-29 | 南京邮电学院 | Orthogonal Frequency Division Multiplexing Modulation and Demodulation Method in Broadband Wireless Access Network |
| US20050208893A1 (en) * | 2004-03-17 | 2005-09-22 | Yueh Wen H | Bluetooth earphone module with audio player function |
| WO2005125022A1 (en) * | 2004-06-17 | 2005-12-29 | Niigata Seimitsu Co Ltd | Modulation output device |
| CN200973100Y (en) * | 2006-11-09 | 2007-11-07 | 天津三星电子有限公司 | Radio network converter |
-
2006
- 2006-11-09 CN CNB2006101293274A patent/CN100456723C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353507A (en) * | 2000-11-08 | 2002-06-12 | 廖壬秋 | Core IC for implementing carrier communication over low-voltage power transmission line by software and radio technique |
| CN1558577A (en) * | 2004-01-16 | 2004-12-29 | 南京邮电学院 | Orthogonal Frequency Division Multiplexing Modulation and Demodulation Method in Broadband Wireless Access Network |
| US20050208893A1 (en) * | 2004-03-17 | 2005-09-22 | Yueh Wen H | Bluetooth earphone module with audio player function |
| WO2005125022A1 (en) * | 2004-06-17 | 2005-12-29 | Niigata Seimitsu Co Ltd | Modulation output device |
| CN200973100Y (en) * | 2006-11-09 | 2007-11-07 | 天津三星电子有限公司 | Radio network converter |
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| Publication number | Publication date |
|---|---|
| CN1949730A (en) | 2007-04-18 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20091209 |