CN203492140U - Video image transmission circuit - Google Patents
Video image transmission circuit Download PDFInfo
- Publication number
- CN203492140U CN203492140U CN201320560590.4U CN201320560590U CN203492140U CN 203492140 U CN203492140 U CN 203492140U CN 201320560590 U CN201320560590 U CN 201320560590U CN 203492140 U CN203492140 U CN 203492140U
- Authority
- CN
- China
- Prior art keywords
- resistance
- electric capacity
- capacitor
- diode
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a video image transmission circuit, which comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a first inductor, a second inductor, a first diode, a first dynatron, a second dynatron, a second diode, a potentiometer, a signal input device, a transformer, a microwave width amplifier and an antenna. The video image transmission circuit disclosed by the utility model feeds analogue signals through the signal input device; a diode frequency-mixing circuit is responsible for mixing an analogue voltage signal and a local oscillation signal output by a camera to form a radio-frequency signal; after being amplified through a microwave operational amplifier and a co-transmission circuit, the radio-frequency signal is sent; wired transmission is changed into wireless transmission; and the problem that the video monitoring quality is reduced caused by the line problem is reduced.
Description
Technical field
The utility model relates to a kind of radiating circuit, relates in particular to a kind of video image radiating circuit.
Background technology
Video monitoring is the important component part of safety and protection system, comprises front-end camera, transmission cable, video monitoring platform, video monitoring is directly perceived with it, accurately, in time and the information content abundant and be widely used in many occasions.Along with computer, network and image are processed, the develop rapidly of transmission technology, also development at full speed of Video Supervision Technique, what but the transmission of the signal of present most of video monitorings still adopted is wire transmission, complicated layout, easily, because various factors is damaged transmission line, video monitoring quality is reduced.
Utility model content
The purpose of this utility model provides a kind of video image radiating circuit with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A video image radiating circuit, comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first inductance, the second inductance, the first diode, the first triode, the second triode, the second diode, potentiometer, signal loader, transformer, microwave is wide to be put and antenna, described antenna is connected with the first end of described the first electric capacity, the second end of described the first electric capacity is connected with the first end of described the second inductance with the collector electrode of described the first triode respectively, the second end of described the second inductance is connected with the first end of described potentiometer and the sliding end of described potentiometer respectively and connects voltage, the second end of described potentiometer respectively with the base stage of described the first triode, the first end of described the second electric capacity is connected with the first end of described the 4th resistance, ground connection after the second end of described the 4th resistance is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with the emitter of described the first triode, the second end of described the second electric capacity is connected with the wide output of putting of described microwave, ground connection after the wide negative voltage side of putting of described microwave is connected with the first end of described the 5th resistance, the wide positive voltage terminal of putting of described microwave respectively with the first end of described the first resistance, the first end of described the 6th electric capacity, the first end of described the second resistance, the first end of a winding of the first end of described the 8th resistance and described transformer is connected, the second termination voltage of described the second resistance, the second end of the secondary winding of described transformer is connected with the positive pole of described the first diode, the second end of described the first resistance is connected with the middle-end of the first end of described the 5th electric capacity and a winding of described transformer respectively, ground connection after the second end of described the 5th electric capacity is connected with the second end of described the 6th electric capacity, the first end of a winding of described transformer is connected with the negative pole of described the second diode, the positive pole of described the second diode respectively with the negative pole of described the first diode, the first end of described the 7th resistance, the first end of described the 5th resistance is connected with the first end of described the 3rd electric capacity, the second end of described the 3rd electric capacity is connected with the wide input of putting of described microwave, the second end of described the 7th resistance is connected with the first end of described the 4th electric capacity, the second end of described the 4th electric capacity is connected with described signal loader, the second end of the secondary winding of described transformer is connected with the collector electrode of described the second triode, the emitter of described the second triode respectively with the first end of described the 6th resistance, the first end of described the 8th electric capacity is connected with the first end of described the 7th electric capacity, the base stage of described the second triode respectively with the second end of described the 8th resistance, the second end of described the 8th electric capacity, the first end of described the 9th resistance, the first end of described the 9th electric capacity is connected with the first end of described the tenth electric capacity, the second end of described the 6th resistance respectively with the second end of described the 7th electric capacity, the second end of described the 9th resistance, the second end of the first end of described the first inductance and described the tenth electric capacity is connected rear and ground connection, and the second end of described the 9th electric capacity is connected with the second end of described the first inductance.
The beneficial effects of the utility model are:
The utility model video image radiating circuit is by analog signal, from signal loader, send into, pass through diode mixer circuit, mixting circuit is responsible for analog voltage signal and the local oscillation signal of camera output to mix out radiofrequency signal, radiofrequency signal sends through microwave amplifier with after being total to the amplification of emitting stage circuit, can become wire transmission into wireless transmission, reduce the problem that causes video monitoring quality to reduce because of circuit question.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model video image radiating circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model video image radiating circuit, comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6, the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, the tenth capacitor C 10, the first inductance L 1, the second inductance L 2, the first diode D1, the second diode D2, the first triode VT1, the second triode VT2, potentiometer RP, signal loader JP, transformer T, wide UPC and the antenna ANT put of microwave, antenna ANT is connected with the first end of the first capacitor C 1, the second end of the first capacitor C 1 is connected with the first end of the second inductance L 2 with the collector electrode of the first triode VT1 respectively, the second end of the second inductance L 2 is connected with the first end of potentiometer RP and the sliding end of potentiometer RP respectively and connects voltage, the second end of potentiometer RP respectively with the base stage of the first triode VT1, the first end of the second capacitor C 2 is connected with the first end of the 4th resistance R 4, ground connection after the second end of the 4th resistance R 4 is connected with the first end of the 3rd resistance R 3, the second end of the 3rd resistance R 3 is connected with the emitter of the first triode VT1, the second end of the second capacitor C 2 is connected with the output of the wide UPC of putting of microwave, ground connection after the negative voltage side of the wide UPC of putting of microwave is connected with the first end of the 5th resistance R 5, the positive voltage terminal that microwave is wide puts UPC respectively with the first end of the first resistance R 1, the first end of the 6th capacitor C 6, the first end of the second resistance R 2, the first end of a winding of the first end of the 8th resistance R 8 and transformer T is connected, the second termination voltage of the second resistance R 2, the second end of the secondary winding of transformer T is connected with the positive pole of the first diode, the second end of the first resistance R 1 is connected with the middle-end of the secondary winding of transformer T with the first end of the 5th capacitor C 5 respectively, ground connection after the second end of the 5th capacitor C 5 is connected with the second end of the 6th capacitor C 6, the first end of the secondary winding of transformer T is connected with the negative pole of the second diode D2, the positive pole of the second diode D2 respectively with the negative pole of the first diode D1, the first end of the 7th resistance R 7, the first end of the 5th resistance R 5 is connected with the first end of the 3rd capacitor C 3, the second end of the 3rd capacitor C 3 is connected with the input of the wide UPC of putting of microwave, the second end of the 7th resistance R 7 is connected with the first end of the 4th capacitor C 4, the second end of the 4th capacitor C 4 is connected with signal loader JP, the second end of a winding of transformer T is connected with the collector electrode of the second triode VT2, the emitter of the second triode VT2 respectively with the first end of the 6th resistance R 6, the first end of the 8th capacitor C 8 is connected with the first end of the 7th capacitor C 7, the base stage of the second triode VT2 respectively with the second end of the 8th resistance R 8, the second end of the 8th capacitor C 8, the first end of the 9th resistance R 9, the first end of the 9th capacitor C 9 is connected with the first end of the tenth capacitor C 10, the second end of the 6th resistance R 6 respectively with the second end of the 7th capacitor C 7, the second end of the 9th resistance R 9, the second end of the first end of the first inductance L 1 and the tenth capacitor C 10 is connected rear and ground connection, and the second end of the 9th capacitor C 9 is connected with the second end of the first inductance L 1.
The operation principle of the utility model video image radiating circuit is as follows:
This radiating circuit produces certain frequency by capacitance three-point type, and picture signal is through camera collection, internal circuit by camera is converted to analog signal, from signal input part, send into, pass through diode mixer circuit, mixting circuit is responsible for analog signal and the local oscillation signal of camera output to mix out radiofrequency signal, and radiofrequency signal sends through microwave amplifier with after being total to the amplification of emitting stage circuit.Wherein microwave amplifier is a hyperfrequency, broadband, low noise, the high frequency linearity amplifying circuit that power gain is large.
Claims (1)
1. a video image radiating circuit, is characterized in that: comprise the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first inductance, the second inductance, the first diode, the second diode, the first triode, the second triode, potentiometer, signal loader, transformer, microwave is wide to be put and antenna, described antenna is connected with the first end of described the first electric capacity, the second end of described the first electric capacity is connected with the first end of described the second inductance with the collector electrode of described the first triode respectively, the second end of described the second inductance is connected with the first end of described potentiometer and the sliding end of described potentiometer respectively and connects voltage, the second end of described potentiometer respectively with the base stage of described the first triode, the first end of described the second electric capacity is connected with the first end of described the 4th resistance, ground connection after the second end of described the 4th resistance is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with the emitter of described the first triode, the second end of described the second electric capacity is connected with the wide output of putting of described microwave, ground connection after the wide negative voltage side of putting of described microwave is connected with the first end of described the 5th resistance, the wide positive voltage terminal of putting of described microwave respectively with the first end of described the first resistance, the first end of described the 6th electric capacity, the first end of described the second resistance, the first end of a winding of the first end of described the 8th resistance and described transformer is connected, the second termination voltage of described the second resistance, the second end of the secondary winding of described transformer is connected with the positive pole of described the first diode, the second end of described the first resistance is connected with the middle-end of the first end of described the 5th electric capacity and a winding of described transformer respectively, ground connection after the second end of described the 5th electric capacity is connected with the second end of described the 6th electric capacity, the first end of a winding of described transformer is connected with the negative pole of described the second diode, the positive pole of described the second diode respectively with the negative pole of described the first diode, the first end of described the 7th resistance, the first end of described the 5th resistance is connected with the first end of described the 3rd electric capacity, the second end of described the 3rd electric capacity is connected with the wide input of putting of described microwave, the second end of described the 7th resistance is connected with the first end of described the 4th electric capacity, the second end of described the 4th electric capacity is connected with described signal loader, the second end of the secondary winding of described transformer is connected with the collector electrode of described the second triode, the emitter of described the second triode respectively with the first end of described the 6th resistance, the first end of described the 8th electric capacity is connected with the first end of described the 7th electric capacity, the base stage of described the second triode respectively with the second end of described the 8th resistance, the second end of described the 8th electric capacity, the first end of described the 9th resistance, the first end of described the 9th electric capacity is connected with the first end of described the tenth electric capacity, the second end of described the 6th resistance respectively with the second end of described the 7th electric capacity, the second end of described the 9th resistance, the second end of the first end of described the first inductance and described the tenth electric capacity is connected rear and ground connection, and the second end of described the 9th electric capacity is connected with the second end of described the first inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560590.4U CN203492140U (en) | 2013-09-10 | 2013-09-10 | Video image transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560590.4U CN203492140U (en) | 2013-09-10 | 2013-09-10 | Video image transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203492140U true CN203492140U (en) | 2014-03-19 |
Family
ID=50262935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560590.4U Expired - Fee Related CN203492140U (en) | 2013-09-10 | 2013-09-10 | Video image transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203492140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167636A (en) * | 2018-11-05 | 2019-01-08 | 南京市高淳区复瑞生物医药先进技术研究院 | A kind of modulation transmitter applied to visible optical communication |
-
2013
- 2013-09-10 CN CN201320560590.4U patent/CN203492140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167636A (en) * | 2018-11-05 | 2019-01-08 | 南京市高淳区复瑞生物医药先进技术研究院 | A kind of modulation transmitter applied to visible optical communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203942502U (en) | LTE high-efficiency radio frequency power amplifier | |
| CN203492140U (en) | Video image transmission circuit | |
| CN103475864A (en) | Video image sending circuit | |
| CN206332649U (en) | A kind of low pressure radio-frequency power amplifier | |
| CN104660322A (en) | WIFI signal enhancement device | |
| CN204206115U (en) | A kind of amplifying circuit for wireless short wave transmitting antenna | |
| CN205123720U (en) | Novel on -vehicle wireless data terminal | |
| CN203180837U (en) | Double-gain intermediate frequency amplifier | |
| CN106788492A (en) | A kind of radio frequency modulation device | |
| CN203233367U (en) | Wide-frequency active antenna | |
| CN203180902U (en) | A frequency modulation transmitter with strong anti-interference performance | |
| CN203504501U (en) | Broadband low-noise amplifier | |
| CN105071825A (en) | Wireless electronic information transmission enhancing electronic device | |
| CN211089834U (en) | Set-top box signal receiving circuit | |
| CN104579194A (en) | High-gain computer network signal amplifier | |
| CN207234740U (en) | Radio frequency amplifier | |
| CN103532572A (en) | Low-power high-sensitivity FM transmitter | |
| CN203788282U (en) | Power line carrier amplification circuit in power system | |
| CN204993320U (en) | Monitoring digital receiver for direction -finding | |
| CN207530802U (en) | Radio frequency automatic level control circuit | |
| CN207074988U (en) | A kind of WiFi signal amplifier | |
| CN203193626U (en) | Radio frequency power amplification device | |
| CN206835068U (en) | WIFI amplifiers | |
| CN203301460U (en) | Exciter of dual-mode transmitter | |
| CN203232960U (en) | Active antenna applied to radio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140910 |
|
| EXPY | Termination of patent right or utility model |