CN201724987U - Wireless signal detection alarm - Google Patents
Wireless signal detection alarm Download PDFInfo
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- CN201724987U CN201724987U CN2010202043545U CN201020204354U CN201724987U CN 201724987 U CN201724987 U CN 201724987U CN 2010202043545 U CN2010202043545 U CN 2010202043545U CN 201020204354 U CN201020204354 U CN 201020204354U CN 201724987 U CN201724987 U CN 201724987U
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- detection alarm
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Abstract
The utility model relates to the field of wireless signal detection, and discloses a wireless signal detection alarm provided by an embodiment of the utility model. The processes such as wireless wave detection, amplification and comparing are mainly used for detecting the wireless signal. Furthermore a buzzer and an LED are added for realizing a wireless signal detection alarm function. The wireless signal detection alarm sends out light and buzzing sound for alarm when gets close to wireless transmission devices such as mobile phone, for reminding presence of wireless signal and electromagnetic radiation for the user. The wireless signal alarm of the utility model can be used for performing wireless signal detection on a device which transmits the radio frequency signal, and can also be used for detecting the wireless signal of the electromagnetic radiation at the surrounding environment of the wireless signal alarm. The wireless signal alarm further has the following advantages: facilitation for adopting a solution, high convenience for the user, simple structure, low cost and convenient carrying.
Description
Technical field
The utility model relates to the wireless signal detection range, in particular a kind of wireless signal detection alarm device.
Background technology
Wireless products such as mobile phone constantly send radiofrequency signal when being communicated with; And present wireless signal checkout equipment is mainly spectrum analyzer, though spectrum analyzer is powerful, costs an arm and a leg.
On the other hand, because current people have used a large amount of wireless products in the social production life, electromagnetic radiation intensity is the problem that people are concerned about.Accurately detecting the environment radio signal strength helps people to avoid possible strong electromagnetic radiation environment or takes the necessary protection measure.Spectrum analyzer is owing to cost an arm and a leg and be inconvenient to carry, and is unfavorable for that the general population contacts and uses.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of wireless signal detection alarm device, and it is simple in structure, and cost is very low, easy to carry.
The technical scheme that the utility model technical solution problem is adopted is as follows:
A kind of wireless signal detection alarm device, comprise a wireless signal detection alarm device body and be arranged on the induction antenna that is used to respond to extraneous wireless signal of described wireless signal detection alarm device body surface, wherein, in described wireless signal detection alarm device body, be provided with:
Be connected with described induction antenna, be used to improve the energy storage device of the wireless energy signal that described induction antenna receives;
Be connected with described energy storage device, be used for the wireless signal of energy storage device output is converted to the diode peak envelope detecting device of simulating signal;
Be connected with described diode peak envelope detecting device, be used for the simulating signal after the conversion is carried out the amplifying signal amplifier;
Be connected with described signal amplifier, be used for amplified analog signal is transformed into digital signal, and with the input signal comparer in reference voltage relatively, judge it is the output low level signal or the signal comparator of output high level signal then;
Be connected with described signal comparator, be used for receiving corresponding level signal, and whether drive the hummer control circuit of hummer work according to the level signal decision that receives from described signal comparator;
Be connected with described hummer control circuit, be used for sending the hummer of chimes of doom according to the control of described hummer control circuit.
Described wireless signal detection alarm device, it is characterized in that, in described wireless signal detection alarm device body, also be provided with: be connected with described signal comparator, be used for receiving corresponding level signal, and whether determine the LED control circuit of driven for emitting lights diode operation according to the level signal that receives from described signal comparator;
Described light emitting diode is connected with described LED control circuit, is arranged on described wireless signal detection alarm device body surface.
Described wireless signal detection alarm device wherein, also is provided with in described wireless signal detection alarm device body:
The reference voltage generator that is used for providing a reference voltage that is connected with described signal comparator to described signal comparator.
Described wireless signal detection alarm device, wherein, described energy storage device comprises first inductance, described first inductance, one end ground connection, the other end connects the end that picks out of antenna.
Described wireless signal detection alarm device, wherein, described diode peak envelope detecting device comprises a diode, an electric capacity and a resistance, the input end of the just very diode peak envelope detecting device of described diode, negative pole is the output terminal of diode peak envelope detecting device, and the non-earth terminal that picks out the end and first inductance of the positive pole of described diode and antenna has public wiring point; Described electric capacity and resistance parallel connection, and the negative pole of a terminating diode, other end ground connection.
A kind of wireless signal detection alarm device provided by the utility model mainly is to utilize wireless detection, amplifies, relatively wait process, carry out the detection of wireless signal, and increase hummer and LED, realize wireless signal detection alarm function, it understands luminous warning at the equipment near wireless transmit such as mobile phones, and send the buzzing sound and report to the police, with the prompting user wireless signal is arranged, there is electromagnetic radiation, provide users with the convenient, and it is simple in structure, and cost is very low, easy to carry.
Description of drawings
Fig. 1 is the wireless signal detection alarm method flow diagram that the utility model embodiment is provided;
Fig. 2 is the theory diagram of the wireless signal detection alarm device that provided of the utility model embodiment;
Fig. 3 is antenna, energy storage device, diode peak envelope detecting device three's a circuit connection diagram;
Fig. 4 is the detection diagram figure of diode peak envelope detecting device;
Fig. 5 is the wireless signal detection alarm device outside drawing that the utility model embodiment provides.
Embodiment
A kind of wireless signal detection alarm device provided by the utility model, clearer, clear and definite for making the purpose of this utility model, technical scheme and advantage, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of wireless signal detection alarm device that the utility model embodiment is provided, as Fig. 1 and shown in Figure 5, the induction antenna 111 that is used to respond to extraneous wireless signal that it comprises a wireless signal detection alarm device body 900 and is arranged on described wireless signal detection alarm device body 900 surfaces, wherein, in described wireless signal detection alarm device body, be provided with, the energy storage device 112 of Lian Jieing successively, diode peak envelope detecting device 113, signal amplifier 114, signal comparator 115, hummer control circuit 117, hummer 118, and a reference voltage generator 116, in the reference voltage input signal comparer 115 that this reference voltage generator 116 produces.
It also comprises a LED control circuit 119 that is connected with described signal comparator 115 in the utility model, and described LED control circuit 119 is connected with light emitting diode 120, and described light emitting diode 119 is arranged on described wireless signal detection alarm device body 900 surfaces.
Wherein, described induction antenna 111 is used to respond to extraneous wireless signal, for example mobile phone radio frequency signal etc.; Described energy storage device 112 is connected with described induction antenna 111, is used to improve the energy of the wireless signal that described induction antenna 11 receives.
Described diode peak envelope detecting device 113 is used for converting the wireless signal of energy storage device 112 outputs to simulating signal; Described signal amplifier 114 is used for the simulating signal after the conversion is amplified.
Described signal comparator 114 is used for amplified analog signal is transformed into digital signal, and with the input signal comparer in reference voltage relatively, judge it is output low level signal or output high level signal then.
Described hummer control circuit 117 is used for receiving corresponding level signal from described signal comparator 115, and whether drives hummer work according to the level signal decision that receives; Described hummer 118 is used for sending chimes of doom according to the control of described hummer control circuit 117.
Described LED control circuit 119 is used for receiving corresponding level signal from described signal comparator 115, and whether determines the driven for emitting lights diode operation according to the level signal that receives; Described light emitting diode is used for sending corresponding luminous alarm according to the control of described LED control circuit 119.
When stating wireless signal detection alarm device in the use, at first, open this alarm, because mobile phone can constantly send radiofrequency signal, when mobile phone when the wireless signal detection alarm device, the wireless signal detection alarm just receives this faint radiofrequency signal by induction antenna 111.
Because radiofrequency signal is fainter, antenna receiving signal very little (being generally the milliwatt level) so earlier radiofrequency signal is passed through energy storage device 112 energy storage, improves energy.The method that energy is provided that the utility model is selected is to increase by an inductance, first inductance L 1 as shown in Figure 3, and an end ground connection of this first inductance L 1, the other end connects picking out of antenna 111 and holds 110.
After promptly boosting after signal improves through energy, promptly be transfused in the diode peak envelope detecting device 113 radiofrequency signal is converted to simulating signal.Referring to Fig. 3, this diode peak envelope detecting device 13 comprises a diode D1, a capacitor C 1 and a resistance R 1, the positive pole 131 of described diode D1 is the input end of diode peak envelope detecting device, negative pole 132 is the output terminal of diode peak envelope detecting device, and the positive pole 131 of described diode has public wiring point with the non-earth terminal 121 that picks out end 110 and first inductance of antenna; Described capacitor C 1 and resistance R 1 parallel connection, and the negative pole 132 of a terminating diode D1, other end ground connection.
One of them core technology of the present utility model is diode peak envelope detecting device 13, says the principle of diode peak envelope detecting device 113 below in detail: detection process is exactly signal source is given capacitor C 1 charging and 1 discharge of 1 pair of resistance R of capacitor C by diode D1 alternately repeating process in fact.See also Fig. 4, suppose that input signal is sine wave, explains detection process by figure:
When input signal Ui started from scratch increase, because the high-frequency resistance of capacitor C 1 is very little, Ui almost all was added to the two ends of diode D1, and C1 doubly charges.The conducting resistance RD of D1 is very little, and charging current is very big, constant RD during again because of charging
*C1 is very little.Voltage on the electric capacity is set up very soon, and this voltage oppositely is added in again on the D1, and this moment, the voltage on the D1 was voltage poor on signal source voltage and the electric capacity.
When the voltage on the electric capacity equals Ui, D1 by.Along with the continuation of Ui descends, there is certain closing time in D1, during this period in capacitor C 1 conduction period charge stored discharge by R1.Because of discharge constant RD
*C1 is bigger, and it is slower to discharge.Descend not for a long time at capacitance voltage, the next cycle of Ui arrives, and as Ui during greater than the voltage on the electric capacity, D1 is conducting once more; Capacitor C 1 is got back additional on the basis of original stored charge amount, and the voltage on the electric capacity is further improved.Then, continue above-mentioned discharge, charging process, the discharge charge amount of C1 equated that just reaching dynamic balance state is steady-working state when the voltage on capacitor ended with D1.
Diode current ID comprises average weight Iav and high fdrequency component.The Iav average voltage Uav that resistance R 1 forms that flows through, it is exactly the useful output voltage of wave detector.Because high frequency ripple voltage is very little, this voltage just almost is equal to the output voltage of wave detector.
Continuation is referring to Fig. 1, after radiofrequency signal is converted to simulating signal, because this simulating signal also is smaller signal, so this simulating signal will be amplified by signal amplifier 114, about the standard of determining of signal amplifier 114 enlargement factors be: satisfy amplified analog signal and can reach the signal that signal comparator 115 can recognize.
Then this amplified analog signal is input to signal comparator 115 signal is become digital signal.Promptly when wireless signal alarm during near the wireless device of working, the signal after the amplification is when relatively (reference voltage can be adjusted, so that control detection range) this signal is more than or equal to reference voltage with reference voltage, and signal comparator 115 is output as high level; When wireless signal alarm during away from the wireless device of working, this simulating signal diminishes, and during less than reference voltage, signal comparator 115 is output as low level.
The size of described reference voltage can be regulated as required, just must guarantee that when reference voltage is bigger the distance of wireless signal alarm and wireless device will very closely could export high level, the distance of wireless signal alarm and wireless device just can slightly far some can guarantee to export high level when reference voltage is less.
Hummer control circuit 117 is selected whether to drive hummer according to the low level of signal comparator 115 output or high level and is made actuation of an alarm, when hummer control circuit 117 receive be low level the time just do not drive hummer 118 work, when hummer control circuit 117 receive be high level the time will drive hummer 118 work, the high-low level that is about to signal comparator is input to hummer control circuit 117 and LED control circuit 119, when input signal when being high, hummer rings, and the LED lamp is bright; When input signal when low, hummer does not ring, LED does not work.Realize wireless signal detection alarm function.
Wireless signal alarm of the present utility model can be used for that promptly the equipment that sends radiofrequency signal is carried out wireless signal and detects, and also can be used for the wireless signal of detection wireless signal alarm surrounding environment electromagnetic radiation, is convenient to take counte-rplan.
Based on above-mentioned wireless signal alarm, the utility model embodiment also provides a kind of wireless signal alarm method, is illustrated in figure 2 as method flow diagram of the present utility model, and it may further comprise the steps:
When the wireless signal alarm when (wireless device in working order), just can receive the radiofrequency signal that this wireless device sends by antenna near wireless devices such as mobile phones.
The energy of the wireless signal that step 302, raising receive;
Because radiofrequency signal is fainter,, improve energy so earlier radiofrequency signal is passed through " energy storage device " energy storage.
This simulating signal also is smaller signal, so this simulating signal will be amplified to the signal that " signal comparator " can recognize by " signal amplifier ".
Amplified analog signal is input to " signal comparator " signal is become digital signal.Promptly when wireless signal alarm during near the wireless device of working, the signal after the amplification and reference voltage be (reference voltage can be adjusted, so that control detection range) relatively, and this signal is during more than or equal to reference voltage, and signal comparator is output as high level; When wireless signal alarm during away from the wireless device of working, this simulating signal diminishes, and during less than reference voltage, signal comparator is output as low level.
The high-low level of signal comparator is input to " hummer control circuit " and " LED control circuit ", when input signal when being high, hummer rings, and the LED lamp is bright; When input signal when low, hummer does not ring, LED does not work.Realize wireless signal detection alarm function.
The wireless signal detection alarm device that the utility model embodiment is provided, mainly be to utilize wireless detection, amplify, relatively wait process, carry out the detection of wireless signal, and increase hummer and LED, and realize wireless signal detection alarm function, it is at the equipment near wireless transmit such as mobile phones, the luminous warning of meeting, and send the buzzing sound and report to the police, with the prompting user wireless signal is arranged, there is electromagnetic radiation.Wireless signal alarm of the present utility model can be used for that promptly the equipment that sends radiofrequency signal is carried out wireless signal and detects, the wireless signal that also can be used for the electromagnetic radiation of detection wireless signal alarm surrounding environment, be convenient to take counte-rplan, provide users with the convenient, and it is simple in structure, and cost is very low, easy to carry.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (5)
1. wireless signal detection alarm device, comprise a wireless signal detection alarm device body and be arranged on the induction antenna that is used to respond to extraneous wireless signal of described wireless signal detection alarm device body surface, it is characterized in that, in described wireless signal detection alarm device body, be provided with:
Be connected with described induction antenna, be used to improve the energy storage device of the wireless energy signal that described induction antenna receives;
Be connected with described energy storage device, be used for the wireless signal of energy storage device output is converted to the diode peak envelope detecting device of simulating signal;
Be connected with described diode peak envelope detecting device, be used for the simulating signal after the conversion is carried out the amplifying signal amplifier;
Be connected with described signal amplifier, be used for amplified analog signal is transformed into digital signal, and with the input signal comparer in reference voltage relatively, judge it is the output low level signal or the signal comparator of output high level signal then;
Be connected with described signal comparator, be used for receiving corresponding level signal, and whether drive the hummer control circuit of hummer work according to the level signal decision that receives from described signal comparator;
Be connected with described hummer control circuit, be used for sending the hummer of chimes of doom according to the control of described hummer control circuit.
2. wireless signal detection alarm device according to claim 1, it is characterized in that, in described wireless signal detection alarm device body, also be provided with: be connected with described signal comparator, be used for receiving corresponding level signal, and whether determine the LED control circuit of driven for emitting lights diode operation according to the level signal that receives from described signal comparator;
Described light emitting diode is connected with described LED control circuit, is arranged on described wireless signal detection alarm device body surface.
3. wireless signal detection alarm device according to claim 1 is characterized in that, also is provided with in described wireless signal detection alarm device body:
The reference voltage generator that is used for providing a reference voltage that is connected with described signal comparator to described signal comparator.
4. wireless signal detection alarm device according to claim 1 is characterized in that described energy storage device comprises first inductance, described first inductance, one end ground connection, and the other end connects the end that picks out of antenna.
5. wireless signal detection alarm device according to claim 1, it is characterized in that, described diode peak envelope detecting device comprises a diode, an electric capacity and a resistance, the input end of the just very diode peak envelope detecting device of described diode, negative pole is the output terminal of diode peak envelope detecting device, and the non-earth terminal that picks out the end and first inductance of the positive pole of described diode and antenna has public wiring point; Described electric capacity and resistance parallel connection, and the negative pole of a terminating diode, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202043545U CN201724987U (en) | 2010-05-21 | 2010-05-21 | Wireless signal detection alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202043545U CN201724987U (en) | 2010-05-21 | 2010-05-21 | Wireless signal detection alarm |
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| Publication Number | Publication Date |
|---|---|
| CN201724987U true CN201724987U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202043545U Expired - Fee Related CN201724987U (en) | 2010-05-21 | 2010-05-21 | Wireless signal detection alarm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122534A (en) * | 2014-08-15 | 2014-10-29 | 张小亚 | Detector circuit for flight control radar |
-
2010
- 2010-05-21 CN CN2010202043545U patent/CN201724987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122534A (en) * | 2014-08-15 | 2014-10-29 | 张小亚 | Detector circuit for flight control radar |
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| Date | Code | Title | Description |
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| 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: 20110126 Termination date: 20130521 |