CN103701546A - Mobile phone detector for office meeting - Google Patents
Mobile phone detector for office meeting Download PDFInfo
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- CN103701546A CN103701546A CN201310755948.3A CN201310755948A CN103701546A CN 103701546 A CN103701546 A CN 103701546A CN 201310755948 A CN201310755948 A CN 201310755948A CN 103701546 A CN103701546 A CN 103701546A
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Abstract
The invention discloses a mobile phone detector for an office meeting. The mobile phone detector comprises an antenna, a battery, a switch, 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 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, an LED (Light Emitting Diode), an amplifier and a time-based integrated chip of which the type is NE555. According to the mobile phone detector disclosed by the invention, transmission signals of any conversation, short message and video can be detected, the transmission signals can also be detected even if a mobile phone is in a silent mode, alarm sound can be immediately emitted once an RF (Radio Frequency) transmission signal of a power-on mobile phone can be detected by a circuit, the LED can be driven to twinkle, the performance is stable, the sensitivity is high, the circuit structure is simple, the components are fewer, the cost is low, and the popularization and the promotion are beneficial for being carried out.
Description
Technical field
The present invention relates to a kind of meeting electronics detecting devices, relate in particular to a kind of office meeting mobile phone detector.
Background technology
The development of science and technology has also brought new challenge to all kinds of important secret places, mobile phone detector is a kind of by transmitting fundamental signal, reception is from target reradiative 2 times, 3 times or even the harmonic wave composite wave signal of high order more, and the equipment that target mobile phones is judged, identified and surveys, no matter be can detect under mobile phone power-on or off-mode, it can detect the electronic equipment that personnel carry, in important office meeting or place, can fundamentally stop the behaviors such as video recording, recording, service companies secret.Yet many mobile phone detector performances are unstable, sensitivity is low, circuit structure is complicated, element is many, cost is high, is difficult to universal and promotes.
Summary of the invention
Object of the present invention provides a kind of office meeting mobile phone detector with regard to being in order to address the above problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes antenna, battery, switch, 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 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, light-emitting diode, amplifier and model are the time base integrated chip of NE555, and the positive pole of described battery connects the first end of described switch, and the second end of described switch simultaneously and the first end of described the 6th resistance, the cathode voltage end of base integrated chip when described, the replacement end of base integrated chip when described, the first end of described the 5th resistance, the first end of described the 4th resistance is connected with the first end of described the 8th resistance, and the second end of described the 6th resistance is the keyed end of base integrated chip when described simultaneously, when described, the discharge end of base integrated chip is connected with the first end of described the 9th electric capacity, the second end of described the 5th resistance is connected with the trigger end of the first end of described while and described the 7th electric capacity base integrated chip when described simultaneously, when described, the control end of base integrated chip connects the first end of described the 8th electric capacity, when described, the output of base integrated chip connects the first end of described loud speaker, the second end of described the 4th resistance is connected with the second end of described the 7th electric capacity and the collector electrode of described triode simultaneously, the emitter-base bandgap grading of described triode connects the positive pole of described light-emitting diode, the base stage of described triode connects the first end of described the 7th resistance, the second end while of described the 7th resistance and the first end of described the 6th electric capacity, described the 3rd first end of resistance and the output of described amplifier are connected, the phase compensation end of described amplifier connects the first end of described the 5th electric capacity, the second end of described the 5th electric capacity connects the zero setting end of described amplifier, the cathode voltage end of described amplifier is connected with the first end of described the first resistance with the second end of described the 8th resistance simultaneously, the in-phase input end while of described amplifier and the first end of described the second resistance, the first end of described the 4th electric capacity, the second end of the first end of described the 3rd electric capacity and described the first resistance is connected, the second end while of described the 3rd electric capacity and the first end of described the first electric capacity, the first end of described the second electric capacity, the second end of described the 3rd resistance and the inverting input of described amplifier are connected, and the second end of described the first electric capacity connects described antenna, the second end while of described the second electric capacity and the second end of described loud speaker, the second end of described the 4th electric capacity, the second end of described the second resistance, the negative electricity pressure side of described amplifier, the second end of described the 6th electric capacity, the negative pole of described light-emitting diode, the second end of described the 8th electric capacity, the earth terminal of base integrated chip when described, the second end of described the 9th electric capacity and the negative pole of described battery are connected.
Beneficial effect of the present invention is:
The present invention can detect the signal transmission of any call, short message and video, even if mobile phone is also the same in silent mode, once circuit detects the radio-frequency transmission signals from start mobile phone, just send immediately chimes of doom, and drive LED flash, stable performance, highly sensitive, and circuit structure is simple, element is few, cost is low, is conducive to universal and promotes.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes antenna Y, battery E, switch S, 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 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, LED, the time basis set that amplifier IC1 is NE555 with model becomes chip IC 2, the first end of the anodal connecting valve S of battery E, the second end while of switch S and the first end of the 6th resistance R 6, time basis set become the cathode voltage end of chip IC 2, time basis set become the replacement end of chip IC 2, the first end of the 5th resistance R 5, the first end of the 4th resistance R 4 is connected with the first end of the 8th resistance R 8, the second end of the 6th resistance R 6 simultaneously with time basis set become the keyed end of chip IC 2, time basis set become the discharge end of chip IC 2 to be connected with the first end of the 9th capacitor C 9, the second end of the 5th resistance R 5 simultaneously with the first end of the 7th capacitor C 7 with time basis set become the trigger end of chip IC 2 to be connected, time basis set become the control end of chip IC 2 to connect the first end of the 8th capacitor C 8, time basis set become the output of chip IC 2 to connect the first end of loud speaker BY, the second end of the 4th resistance R 4 is connected with the collector electrode of triode VT with the second end of the 7th capacitor C 7 simultaneously, the positive pole of the emitter-base bandgap grading connecting luminous diode LED of triode VT, the base stage of triode VT connects the first end of the 7th resistance R 7, the second end while of the 7th resistance R 7 and the first end of the 6th capacitor C 6, the first end of the 3rd resistance R 3 is connected with the output of amplifier IC1, the phase compensation end of amplifier IC1 connects the first end of the 5th capacitor C 5, the second end of the 5th capacitor C 5 connects the zero setting end of amplifier IC1, the cathode voltage end of amplifier IC1 is connected with the first end of the first resistance R 1 with the second end of the 8th resistance R 8 simultaneously, the in-phase input end while of amplifier IC1 and the first end of the second resistance R 2, the first end of the 4th capacitor C 4, the first end of the 3rd capacitor C 3 is connected with the second end of the first resistance R 1, the second end while of the 3rd capacitor C 3 and the first end of the first capacitor C 1, the first end of the second capacitor C 2, the second end of the 3rd resistance R 3 is connected with the inverting input of amplifier IC1, and the second end of the first capacitor C 1 connects antenna Y, the second end while of the second capacitor C 2 and the second end of loud speaker BY, the second end of the 4th capacitor C 4, the second end of the second resistance R 2, the negative electricity pressure side of amplifier IC1, the second end of the 6th capacitor C 6, the negative pole of LED, the second end of the 8th capacitor C 8, time basis set become the earth terminal of chip IC 2, the second end of the 9th capacitor C 9 is connected with the negative pole of battery E.
Operation principle of the present invention:
As shown in Figure 1: the present invention can detect the signal transmission of any call, short message and video, even if mobile phone is also the same in silent mode, once circuit detects the radio-frequency transmission signals from start mobile phone, just send immediately chimes of doom, and drive LED to glimmer, the frequency range that mobile phone uses is 0.9-3 GHz, and wavelength is 3.3-10 cm, and detector circuit of the present invention possesses the ability that can detect gigahertz band.
Technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, and the technology distortion that every technical scheme according to the present invention is made, within all falling into protection scope of the present invention.
Claims (1)
1. an office meeting mobile phone detector, is characterized in that: comprise antenna, battery, switch, 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 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, light-emitting diode, amplifier and model are the time base integrated chip of NE555, and the positive pole of described battery connects the first end of described switch, and the second end of described switch simultaneously and the first end of described the 6th resistance, the cathode voltage end of base integrated chip when described, the replacement end of base integrated chip when described, the first end of described the 5th resistance, the first end of described the 4th resistance is connected with the first end of described the 8th resistance, and the second end of described the 6th resistance is the keyed end of base integrated chip when described simultaneously, when described, the discharge end of base integrated chip is connected with the first end of described the 9th electric capacity, the second end of described the 5th resistance is connected with the trigger end of the first end of described while and described the 7th electric capacity base integrated chip when described simultaneously, when described, the control end of base integrated chip connects the first end of described the 8th electric capacity, when described, the output of base integrated chip connects the first end of described loud speaker, the second end of described the 4th resistance is connected with the second end of described the 7th electric capacity and the collector electrode of described triode simultaneously, the emitter-base bandgap grading of described triode connects the positive pole of described light-emitting diode, the base stage of described triode connects the first end of described the 7th resistance, the second end while of described the 7th resistance and the first end of described the 6th electric capacity, described the 3rd first end of resistance and the output of described amplifier are connected, the phase compensation end of described amplifier connects the first end of described the 5th electric capacity, the second end of described the 5th electric capacity connects the zero setting end of described amplifier, the cathode voltage end of described amplifier is connected with the first end of described the first resistance with the second end of described the 8th resistance simultaneously, the in-phase input end while of described amplifier and the first end of described the second resistance, the first end of described the 4th electric capacity, the second end of the first end of described the 3rd electric capacity and described the first resistance is connected, the second end while of described the 3rd electric capacity and the first end of described the first electric capacity, the first end of described the second electric capacity, the second end of described the 3rd resistance and the inverting input of described amplifier are connected, and the second end of described the first electric capacity connects described antenna, the second end while of described the second electric capacity and the second end of described loud speaker, the second end of described the 4th electric capacity, the second end of described the second resistance, the negative electricity pressure side of described amplifier, the second end of described the 6th electric capacity, the negative pole of described light-emitting diode, the second end of described the 8th electric capacity, the earth terminal of base integrated chip when described, the second end of described the 9th electric capacity and the negative pole of described battery are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755948.3A CN103701546A (en) | 2013-12-30 | 2013-12-30 | Mobile phone detector for office meeting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755948.3A CN103701546A (en) | 2013-12-30 | 2013-12-30 | Mobile phone detector for office meeting |
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| Publication Number | Publication Date |
|---|---|
| CN103701546A true CN103701546A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310755948.3A Pending CN103701546A (en) | 2013-12-30 | 2013-12-30 | Mobile phone detector for office meeting |
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| CN (1) | CN103701546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866858A (en) * | 2016-03-25 | 2016-08-17 | 东莞市华盾电子科技有限公司 | Calibrating method, testing method for mobile phone detecting and system thereof |
-
2013
- 2013-12-30 CN CN201310755948.3A patent/CN103701546A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866858A (en) * | 2016-03-25 | 2016-08-17 | 东莞市华盾电子科技有限公司 | Calibrating method, testing method for mobile phone detecting and system thereof |
| CN105866858B (en) * | 2016-03-25 | 2018-11-30 | 东莞市华盾电子科技有限公司 | Scaling method, test method and its system of mobile phone detection |
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Application publication date: 20140402 |
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| WD01 | Invention patent application deemed withdrawn after publication |