CN203180901U - Wireless vibration type voice frequency modulation transmitter - Google Patents
Wireless vibration type voice frequency modulation transmitter Download PDFInfo
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- CN203180901U CN203180901U CN 201320136459 CN201320136459U CN203180901U CN 203180901 U CN203180901 U CN 203180901U CN 201320136459 CN201320136459 CN 201320136459 CN 201320136459 U CN201320136459 U CN 201320136459U CN 203180901 U CN203180901 U CN 203180901U
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Abstract
The utility model discloses a wireless vibration type voice frequency modulation transmitter. The wireless vibration type voice frequency modulation transmitter comprises a vibration sensor, a relay control lamp circuit, a voice sounding circuit, a high frequency oscillation circuit, an alternating current voltage reduction rectification power supply circuit and an antenna, wherein the relay control circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a bidirectional voltage stabilization diode, a first transistor and an indication lamp, a first end of the first resistor is connected with a signal output end of the vibration sensor, a second end of the first resistor is connected with a base electrode of the first transistor, and an emitter electrode of the first transistor is respectively connected with a power source input end of the vibration sensor and a first end of the indication lamp. According to the wireless vibration type voice frequency modulation transmitter, the vibration sensor clings tightly to a panel of a glass cabinet in which a cultural object or a valuable exhibition item are displayed, when a thief pries a cabinet to steal a thing, a transmitter circuit automatically emits a voice alarm signal, the voice alarm signal is demodulated by a frequency modulation radio in a duty room automatically and then is broadcasted through a loudspeaker to give on-duty personnel a prompt of alarm generation.
Description
Technical field
The utility model relates to a kind of frequency modulation transmitting set, particularly relates to a kind of oscillatory type speech modulation transmitting set.
Background technology
Frequency modulated transmitter at first is modulated to frequency-modulated wave with audio signal and high frequency carrier, and the frequency of high frequency carrier is changed with audio signal, the high-frequency signal that produces is amplified again, excitation, power amplifier and a series of impedance matching make signal output to antenna, the device that sends.The generation of high-frequency signal has modes such as frequency synthesis, PLL now.The frequency range 88-108MHZ of the commercial FM broadcasting of present China, the campus is 76-87MHZ, western countries are 70-90MHZ.Existing transmitter circuitry generally only has the effect that transmits, and does not have the audio alert function.
The utility model content
The purpose of this utility model is that a kind of oscillatory type speech modulation transmitting set with audio alert function is provided in order to address the above problem.
The utility model is achieved through the following technical solutions:
A kind of oscillatory type speech modulation transmitting set, the involving vibrations transducer, relay control lighting circuit, the speech utterance circuit, high-frequency oscillating circuits, ac buck commutation supply voltage circuit and antenna, described control relay circuit comprises first resistance, second resistance, the 3rd resistance, the 4th resistance, the bi-directional voltage stabilizing diode, the first transistor and indicator light, first end of described first resistance is connected with the signal output part of described vibrating sensor, second end of described first resistance is connected with the base stage of described the first transistor, the emitter of described the first transistor is connected with the power input of described vibrating sensor and first end of described indicator light respectively, the collector electrode of described the first transistor respectively with first end of described second resistance, first end of the 3rd resistance is connected with first end of described the 4th resistance, second end of described the 3rd resistance is connected with the control end of described bi-directional voltage stabilizing diode, first end of described bi-directional voltage stabilizing diode is connected with second end of described indicator light, second end of described bi-directional voltage stabilizing diode is connected with second end of described second resistance, described speech utterance electricity comprises speech IC, the 5th resistance, the 6th resistance, first electric capacity, second electric capacity and first diode, the signal input part of described speech IC is connected with second end of described the 4th resistance, the discharge end of described speech IC is connected with first end of described the 5th resistance, second end of described the 5th resistance is connected with the negative pole of described first diode and the voltage input end of described speech IC respectively, the earth terminal of described speech IC is connected with second end of described bi-directional voltage stabilizing diode and first end of described second electric capacity respectively, the output of described speech IC is connected with first end of described first electric capacity, and second end of described first electric capacity is connected with first end of described the 6th resistance and second end of described second electric capacity respectively.
Further, described high-frequency oscillating circuits comprises transistor seconds, first inductance, second inductance, the 3rd electric capacity, the 4th electric capacity and the 6th electric capacity and the 7th electric capacity, the base stage of described transistor seconds is connected with the output of described speech utterance circuit, the collector electrode of described transistor seconds respectively with first end of described first inductance, first end of described the 3rd electric capacity is connected with first end of described the 4th electric capacity, second end of described first inductance is connected the back and is connected with first end of described the 7th electric capacity with second end of described the 3rd electric capacity, second end of described the 4th electric capacity respectively with the emitter of described transistor seconds, first end of described second inductance is connected with first end of described the 6th electric capacity, and second end of described the 6th electric capacity is connected with second end of described second inductance and second end of described the 7th electric capacity respectively.
Further, described ac buck commutation supply voltage circuit comprises second diode, the 3rd diode, the 7th resistance and the 8th electric capacity, the positive pole of described second diode is connected with first end of described the 7th resistance, first end of the 8th electric capacity and the negative pole of described the 3rd diode respectively, the positive pole of described the 3rd diode is connected with described AC power, and second end of described the 7th resistance is connected with second end of described the 8th electric capacity.
The beneficial effects of the utility model are:
On the plate face of the glass cabinet by the vibrating sensor in the utility model being attached at historical relic or precious exhibit, when the people prizes cabinet and commits theft, transmitter circuitry will send the audio alert signal automatically, the FM receiver at place on duty is just broadcasted with the automatic demodulation of alarm signal and by loud speaker, reminds the duty personnel to have alert to take place.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
As shown in Figure 1, the utility model oscillatory type speech modulation transmitting set, involving vibrations sensor IC 1, relay control lighting circuit, the speech utterance circuit, high-frequency oscillating circuits, ac buck commutation supply voltage circuit and antenna, described control relay circuit comprises first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, bi-directional voltage stabilizing diode VS, the first transistor VT1 and indicator light H, first end of described first resistance R 1 is connected with the signal output part of described vibrating sensor IC1, second end of described first resistance R 1 is connected with the base stage of described the first transistor VT1, the emitter of described the first transistor VT1 is connected with the power input of described vibrating sensor IC1 and first end of described indicator light H respectively, the collector electrode of described the first transistor VT1 respectively with first end of described second resistance R 2, first end of the 3rd resistance R 3 is connected with first end of described the 4th resistance R 4, second end of described the 3rd resistance R 3 is connected with the control end of described bi-directional voltage stabilizing diode VS, first end of described bi-directional voltage stabilizing diode VS is connected with second end of described indicator light H, second end of described bi-directional voltage stabilizing diode VS is connected with second end of described second resistance R 2, described speech utterance circuit comprises speech IC IC2, the 5th resistance R 5, the 6th resistance R 6, first capacitor C 1, second capacitor C 2 and the first diode VD, the signal input part of described speech IC IC2 is connected with second end of described the 4th resistance R 4, the discharge end of described speech IC IC2 is connected with first end of described the 5th resistance R 5, second end of described the 5th resistance R 5 is connected with the negative pole of the described first diode VD1 and the voltage input end of described speech IC IC2 respectively, the earth terminal of described speech IC IC2 is connected with second end of described bi-directional voltage stabilizing diode VS and first end of described second capacitor C 2 respectively, the output of described speech IC IC2 is connected with first end of described first capacitor C 1, and second end of described first capacitor C 1 is connected with first end of described the 6th resistance R 6 and second end of described second capacitor C 2 respectively.
Described high-frequency oscillating circuits comprises transistor seconds VT2, first inductance L 1, second inductance L 2, the 3rd capacitor C 3, the 4th capacitor C 4 and the 6th capacitor C 6 and the 7th capacitor C 7, the base stage of described transistor seconds VT2 is connected with the output of described speech utterance IC circuit 2, the collector electrode of described transistor seconds VT2 respectively with first end of described first inductance L 1, first end of described the 3rd capacitor C 3 is connected with first end of described the 4th capacitor C 4, second end of second end of described first inductance L 1 and described the 3rd capacitor C 3 is connected the back and is connected with first end of described the 7th capacitor C 7, second end of described the 4th capacitor C 4 respectively with the emitter of described transistor seconds VT2, first end of described second inductance L 2 is connected with first end of described the 6th capacitor C 6, and second end of described the 6th capacitor C 6 is connected with second end of described second inductance L 2 and second end of described the 7th capacitor C 7 respectively.
Described ac buck commutation supply voltage circuit comprises the second diode VD2, the 3rd diode VD3, the 7th resistance R 7 and the 8th capacitor C 8, the positive pole of the described second diode VD2 is connected with first end of described the 7th resistance R 7, first end of the 8th capacitor C 8 and the negative pole of described the 3rd diode VD3 respectively, the positive pole of described the 3rd diode VD3 is connected with described AC power, and second end of described the 7th resistance R 7 is connected with second end of described the 8th capacitor C 8.
Claims (3)
1. oscillatory type speech modulation transmitting set, it is characterized in that: the involving vibrations transducer, relay control lighting circuit, the speech utterance circuit, high-frequency oscillating circuits, ac buck commutation supply voltage circuit and antenna, described control relay circuit comprises first resistance, second resistance, the 3rd resistance, the 4th resistance, the bi-directional voltage stabilizing diode, the first transistor and indicator light, first end of described first resistance is connected with the signal output part of described vibrating sensor, second end of described first resistance is connected with the base stage of described the first transistor, the emitter of described the first transistor is connected with the power input of described vibrating sensor and first end of described indicator light respectively, the collector electrode of described the first transistor respectively with first end of described second resistance, first end of the 3rd resistance is connected with first end of described the 4th resistance, second end of described the 3rd resistance is connected with the control end of described bi-directional voltage stabilizing diode, first end of described bi-directional voltage stabilizing diode is connected with second end of described indicator light, second end of described bi-directional voltage stabilizing diode is connected with second end of described second resistance, described speech utterance electricity comprises speech IC, the 5th resistance, the 6th resistance, first electric capacity, second electric capacity and first diode, the signal input part of described speech IC is connected with second end of described the 4th resistance, the discharge end of described speech IC is connected with first end of described the 5th resistance, second end of described the 5th resistance is connected with the negative pole of described first diode and the voltage input end of described speech IC respectively, the earth terminal of described speech IC is connected with second end of described bi-directional voltage stabilizing diode and first end of described second electric capacity respectively, the output of described speech IC is connected with first end of described first electric capacity, and second end of described first electric capacity is connected with first end of described the 6th resistance and second end of described second electric capacity respectively.
2. oscillatory type speech modulation transmitting set according to claim 1, it is characterized in that: described high-frequency oscillating circuits comprises transistor seconds, first inductance, second inductance, the 3rd electric capacity, the 4th electric capacity and the 6th electric capacity and the 7th electric capacity, the base stage of described transistor seconds is connected with the output of described speech utterance circuit, the collector electrode of described transistor seconds respectively with first end of described first inductance, first end of described the 3rd electric capacity is connected with first end of described the 4th electric capacity, second end of described first inductance is connected the back and is connected with first end of described the 7th electric capacity with second end of described the 3rd electric capacity, second end of described the 4th electric capacity respectively with the emitter of described transistor seconds, first end of described second inductance is connected with first end of described the 6th electric capacity, and second end of described the 6th electric capacity is connected with second end of described second inductance and second end of described the 7th electric capacity respectively.
3. oscillatory type speech modulation transmitting set according to claim 1, it is characterized in that: described ac buck commutation supply voltage circuit comprises second diode, the 3rd diode, the 7th resistance and the 8th electric capacity, the positive pole of described second diode is connected with first end of described the 7th resistance, first end of the 8th electric capacity and the negative pole of described the 3rd diode respectively, the positive pole of described the 3rd diode is connected with described AC power, and second end of described the 7th resistance is connected with second end of described the 8th electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320136459 CN203180901U (en) | 2013-03-24 | 2013-03-24 | Wireless vibration type voice frequency modulation transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320136459 CN203180901U (en) | 2013-03-24 | 2013-03-24 | Wireless vibration type voice frequency modulation transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180901U true CN203180901U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320136459 Expired - Fee Related CN203180901U (en) | 2013-03-24 | 2013-03-24 | Wireless vibration type voice frequency modulation transmitter |
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| CN (1) | CN203180901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065391A (en) * | 2013-03-24 | 2014-09-24 | 成都龙腾中远信息技术有限公司 | Vibration type voice frequency modulation wireless transmitter |
| CN104363355A (en) * | 2014-11-25 | 2015-02-18 | 黄宇嵩 | Fixed-line telephone frequency modulation and wireless transmission device |
-
2013
- 2013-03-24 CN CN 201320136459 patent/CN203180901U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065391A (en) * | 2013-03-24 | 2014-09-24 | 成都龙腾中远信息技术有限公司 | Vibration type voice frequency modulation wireless transmitter |
| CN104363355A (en) * | 2014-11-25 | 2015-02-18 | 黄宇嵩 | Fixed-line telephone frequency modulation and wireless transmission device |
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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: 20130904 Termination date: 20140324 |