CN104660972A - Video signal transmitter for video monitoring - Google Patents
Video signal transmitter for video monitoring Download PDFInfo
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- CN104660972A CN104660972A CN201310606400.2A CN201310606400A CN104660972A CN 104660972 A CN104660972 A CN 104660972A CN 201310606400 A CN201310606400 A CN 201310606400A CN 104660972 A CN104660972 A CN 104660972A
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- electric capacity
- resistance
- amplifier
- signal transmitter
- triode
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Abstract
The invention discloses a video signal transmitter for video monitoring. The video signal transmitter comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a coil, a first resistor, a second resistor, a third resistor, a triode, an amplifier, a voltage stabilizer, a diode, an antenna and a direct-current power supply. Compared with the prior art, the video signal transmitter is relatively convenient to use, simple in circuit structure, relatively low in manufacturing cost and relatively high in popularization value as a video signal is further subjected to power amplification through a power amplification chip after being processed by a high-flux filter and a pre-amplifier, and is further transmitted out through the antenna.
Description
Technical field
The present invention relates to a kind of visual-signal transmitter, particularly relate to a kind of visual-signal transmitter for video monitoring.
Background technology
Along with social economy and scientific and technical develop rapidly, the requirement of people to safety technological guard is also more and more higher, later 1980s is to middle nineteen nineties, along with the introducing of various novel security idea, all departments of society, every profession and trade and residential quarter establish separately independently closed-circuit TV monitoring system one after another, remote monitoring can be carried out now, what wherein will use is exactly visual-signal transmitter, it is not too convenient that the visual-signal transmitter for video monitoring now uses, make the operating efficiency of whole video monitoring system lower, and circuit structure more complicated, cost of manufacture is higher, add our use cost.
Summary of the invention
Object of the present invention is just to provide a kind of visual-signal transmitter for video monitoring to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes the first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, coil, first resistance, second resistance, 3rd resistance, triode, amplifier, pressurizer, diode, antenna and DC power supply, the first end of described first electric capacity simultaneously with the signal input part of described visual-signal transmitter, the first end of described coil, the emitter of described triode is connected with the negative electricity source of described amplifier and ground connection, second end of described first electric capacity is connected with the first end of described second electric capacity and the second end of described coil simultaneously, second end of described second electric capacity is connected with the first end of described first resistance and the base stage of described triode simultaneously, with the first end of described second resistance while of the second end of described first resistance, the first end of described 3rd electric capacity, the cathode power supply end of described amplifier, the first end of described 5th electric capacity is connected with the output of described pressurizer, second end of described second resistance is connected with the described first end of the 4th electric capacity and the collector electrode of described triode simultaneously, second end of described 4th electric capacity is connected with the input of described amplifier, the output of described amplifier is connected with the first end of described 6th electric capacity, second end of described 6th electric capacity is connected with the signal input part of described antenna, second end ground connection of described 3rd electric capacity, second end of described 5th electric capacity is connected with the earth terminal of described pressurizer and the first end of described 3rd resistance and ground connection simultaneously, second end of described 3rd resistance is connected with the negative pole of described diode, the positive pole of described diode simultaneously with the input of described pressurizer, the first end of described 7th electric capacity is connected with the positive pole of described DC power supply, the second end ground connection of described 7th electric capacity.
Particularly, described triode is NPN type, and described DC power supply is 9V power supply.
Beneficial effect of the present invention is:
The present invention is a kind of visual-signal transmitter for video monitoring, vision signal is after high pass filter and preamplifier process, power amplification is carried out again by power amplifier chip, then this signal antenna is launched, use more convenient, and its circuit structure is simple, cost of manufacture is lower, has the value of higher penetration and promotion.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the present invention for the visual-signal transmitter of video monitoring.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention includes the first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, coil L, first resistance R1, second resistance R2, 3rd resistance R3, triode Q, amplifier IC1, pressurizer IC2, diode D, the first end of antenna TX and DC power supply DC, the first electric capacity C1 simultaneously with the signal input part of visual-signal transmitter, the first end of coil L, the emitter of triode Q is connected with the negative electricity source of amplifier IC1 and ground connection, second end of the first electric capacity C1 is connected with the first end of the second electric capacity C2 and second end of coil L simultaneously, second end of the second electric capacity C2 is connected with the first end of the first resistance R1 and the base stage of triode Q simultaneously, with the first end of the second resistance R2 while of second end of the first resistance R1, the first end of the 3rd electric capacity C3, the cathode power supply end of amplifier IC1, the first end of the 5th electric capacity C5 is connected with the output of pressurizer IC2, second end of the second resistance R2 is connected with the first end of the 4th electric capacity C4 and the collector electrode of triode Q simultaneously, second end of the 4th electric capacity C4 is connected with the input of amplifier IC1, the output of amplifier IC1 is connected with the first end of the 6th electric capacity C6, second end of the 6th electric capacity C6 is connected with the signal input part of antenna TX, the second end ground connection of the 3rd electric capacity C3, second end of the 5th electric capacity C5 is connected with the earth terminal of pressurizer IC2 and the first end of the 3rd resistance R3 and ground connection simultaneously, second end of the 3rd resistance R3 is connected with the negative pole of diode D, the positive pole of diode D simultaneously with the input of pressurizer IC2, the first end of the 7th electric capacity C7 is connected with the positive pole of DC power supply DC, the second end ground connection of the 7th electric capacity C7, and triode Q is NPN type, and DC power supply DC is 9V power supply.
The present invention is a kind of visual-signal transmitter for video monitoring, it is simple that it has circuit, cost is low, the features such as easy making, amplifier IC1 selects model to be the power amplifier of UPC1651, vision signal delivers to the high pass filter be made up of the first electric capacity C1, coil L and the second electric capacity C2 through signal input part VIN, then the preamplifier through triode Q and Resistor-Capacitor Unit composition carries out enlarge leadingly, deliver to amplifier IC1 by the 4th electric capacity C4 again and carry out power amplification, its output signal is launched through antenna TX.
Claims (2)
1. for a visual-signal transmitter for video monitoring, it is characterized in that: comprise the first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, coil, first resistance, second resistance, 3rd resistance, triode, amplifier, pressurizer, diode, antenna and DC power supply, the first end of described first electric capacity simultaneously with the signal input part of described visual-signal transmitter, the first end of described coil, the emitter of described triode is connected with the negative electricity source of described amplifier and ground connection, second end of described first electric capacity is connected with the first end of described second electric capacity and the second end of described coil simultaneously, second end of described second electric capacity is connected with the first end of described first resistance and the base stage of described triode simultaneously, with the first end of described second resistance while of the second end of described first resistance, the first end of described 3rd electric capacity, the cathode power supply end of described amplifier, the first end of described 5th electric capacity is connected with the output of described pressurizer, second end of described second resistance is connected with the described first end of the 4th electric capacity and the collector electrode of described triode simultaneously, second end of described 4th electric capacity is connected with the input of described amplifier, the output of described amplifier is connected with the first end of described 6th electric capacity, second end of described 6th electric capacity is connected with the signal input part of described antenna, second end ground connection of described 3rd electric capacity, second end of described 5th electric capacity is connected with the earth terminal of described pressurizer and the first end of described 3rd resistance and ground connection simultaneously, second end of described 3rd resistance is connected with the negative pole of described diode, the positive pole of described diode simultaneously with the input of described pressurizer, the first end of described 7th electric capacity is connected with the positive pole of described DC power supply, the second end ground connection of described 7th electric capacity.
2. the visual-signal transmitter for video monitoring according to claim 1, is characterized in that: described triode is NPN type, and described DC power supply is 9V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606400.2A CN104660972A (en) | 2013-11-25 | 2013-11-25 | Video signal transmitter for video monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606400.2A CN104660972A (en) | 2013-11-25 | 2013-11-25 | Video signal transmitter for video monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104660972A true CN104660972A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310606400.2A Pending CN104660972A (en) | 2013-11-25 | 2013-11-25 | Video signal transmitter for video monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104660972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193839A (en) * | 2019-12-17 | 2020-05-22 | 闽南理工学院 | Computer video signal transmission processor |
-
2013
- 2013-11-25 CN CN201310606400.2A patent/CN104660972A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193839A (en) * | 2019-12-17 | 2020-05-22 | 闽南理工学院 | Computer video signal transmission processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |