CN104698289A - Portable electromagnetic radiation detection alarm - Google Patents
Portable electromagnetic radiation detection alarm Download PDFInfo
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- CN104698289A CN104698289A CN201510137844.5A CN201510137844A CN104698289A CN 104698289 A CN104698289 A CN 104698289A CN 201510137844 A CN201510137844 A CN 201510137844A CN 104698289 A CN104698289 A CN 104698289A
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Abstract
The invention discloses a portable electromagnetic radiation detection alarm. The alarm is that a sensing antenna is used for receiving a wireless signal; the wireless signal is processed by energy storing, filtering, amplifying and comparing and then outputted to an alarming device, so as to achieve the wireless signal detecting alarming function; when a user is close to a mobile phone and other wireless devices, an alarming signal can be generated to prompt the user of the wireless signal and whether electromagnetic radiation occurs, so that the user can use conveniently; meanwhile, the alarm has the characteristics of being simple in structure, low in cost, and convenient to carry.
Description
Technical field
The present invention relates to electromagnet radiation detection field, what be specifically related to is a kind of portable electromagnetic radiation detection alarm device.
Background technology
Along with the raising of people's living standard, in the social life of people, employ a large amount of wireless products, for example (,) mobile phone, the wireless devices such as intercom.The wireless products such as mobile phone can constantly send radiofrequency signal when connection, thus how to avoid these possible electromagnetic radiation are problems that people pay close attention to.
Accurately detect that radio signal strength contributes to people and avoids possible strong electromagnetic radiation environment or take necessary safeguard procedures.Current wireless signal checkout equipment mainly adopt some detecting instruments carry out detection analyze, although and these detecting instruments are powerful, expensive, be inconvenient to carry, be not easy to general population use.
Therefore, prior art wireless signal detection technique has yet to be improved and developed.
Summary of the invention
In view of the above-mentioned weak point of above-mentioned prior art, the object of the present invention is to provide a kind of structure simple portable electromagnetic radiation detection alarm device.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of portable electromagnetic radiation detection alarm device, comprising:
For receiving the induction antenna of wireless signal;
For the warning device of output alarm signal,
For improving the energy storage device of the wireless energy signal that described induction antenna receives;
Wireless signal for being exported by described energy storage device converts the diode peak envelope detector of simulating signal to;
For described simulating signal is carried out amplifying signal amplifier;
For the analog-signal transitions after amplification is become digital signal, and the multistage reference voltage in this digital signal and multilevel signal comparer is compared, the multilevel signal comparer of corresponding output low level or high level;
Digital signal for being exported by described multilevel signal comparer converts the digiverter of simulating signal to;
For providing the reference voltage generator of multistage reference voltage;
For eliminating the filtration module of ripple signal;
Described induction antenna, energy storage device, filtration module, diode peak envelope detector, signal amplifier, multilevel signal comparer, digiverter are connected successively with warning device; Described reference voltage generator is connected with described multiple signals comparer.
In described portable electromagnetic radiation detection alarm device, described energy storage device is inductance, and one end of described inductance connects described induction antenna and filtration module, the other end ground connection of inductance.
In described portable electromagnetic radiation detection alarm device, described filtration module comprises the first electric capacity, and one end of the first electric capacity connects one end and the diode peak envelope detector of inductance, the other end ground connection of the first electric capacity.
In described portable electromagnetic radiation detection alarm device, described diode peak envelope detector comprises diode, the second electric capacity and the first resistance; The positive pole of described diode connects one end of induction antenna, inductance one end and the second electric capacity, and the negative pole of diode connects described signal amplifier, one end of the second electric capacity and one end of the first resistance, the other end of the second electric capacity and the other end ground connection of the first resistance.
In described portable electromagnetic radiation detection alarm device, described signal amplifier comprises: operational amplifier, the second resistance, the 3rd resistance and the 4th resistance, the positive input terminal of described operational amplifier is by the negative pole of the second resistance connection diode, also by the 3rd resistance eutral grounding, the negative input end of described operational amplifier is by the 4th resistance eutral grounding, and the output terminal of operational amplifier connects multilevel signal comparer.
In described portable electromagnetic radiation detection alarm device, the resistance value ratio of described second resistance and the 3rd resistance is 10.
In described portable electromagnetic radiation detection alarm device, described warning device comprises hummer, for driving the hummer control circuit of described hummer work, light emitting diode and the LED control circuit for connecting described light emitting diode; Described hummer control circuit is connected with the output terminal of digiverter with the public input end of LED control circuit, and the output terminal of described hummer control circuit is connected with described hummer, and the output terminal of described LED control circuit is connected with described light emitting diode.
A kind of portable electromagnetic radiation detection alarm device provided by the present invention, wireless signal is received owing to have employed induction antenna, and by energy storage, filtering, amplification, flow to warning device more afterwards, realize wireless signal detecting-alarming function, when it is near wireless devices such as mobile phones, send alerting signal, thus prompting user there is wireless signal, whether there is electromagnetic radiation, provide users with the convenient; This portable electromagnetic radiation detection alarm device also has the features such as structure is simple, cost is low, easy to carry simultaneously.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of portable electromagnetic radiation detection alarm device of the present invention.
Embodiment
A kind of portable electromagnetic radiation detection alarm device provided by the present invention, for making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, a kind of portable electromagnetic radiation detection alarm device provided by the invention comprises induction antenna 120 and the warning device for output alarm signal.Described induction antenna 120 is for receiving extraneous wireless signal.Wherein, described portable electromagnetic radiation detection alarm device also comprises energy storage device 111, diode peak envelope detector 112, signal amplifier 113, multilevel signal comparer 114, digiverter 115, reference voltage generator 116 and filtration module 117.Described induction antenna 120, energy storage device 111, filtration module 117, diode peak envelope detector 112, signal amplifier 113, multilevel signal comparer 114, digiverter 115 and warning device 130 connect successively, and described reference voltage generator 116 is connected with described multilevel signal comparer 114.
Please continue to refer to Fig. 1, described induction antenna 120 for receiving extraneous wireless signal, such as, mobile phone radio frequency signal etc.; The signal of milliwatt level that what the induction antenna 120 due to portable electromagnetic radiation detection alarm device received is generally, so before input diode peak envelop detection device 112, needs the energy first being improved these wireless signals by energy storage device 111.This signal amplifies by selecting suitable inductance L 1 by the present embodiment.One end of this inductance L 1 connects the output terminal of described induction antenna 120 and filtration module 117, the other end ground connection of inductance L 1.
Described filtration module 117 comprises the first electric capacity C1, and one end of the first electric capacity C1 connects one end of inductance L 1 and the other end ground connection of diode peak envelope detector 132, first electric capacity C1.Described first electric capacity adopts ceramic condenser, and the input signal of diode peak envelope detector 112 is stablized.
Please continue to refer to Fig. 1, described warning device 130 comprises hummer 131, hummer control circuit 132, light emitting diode 133 and LED control circuit 134.Wherein, described hummer 131 is connected with the signal output part of digiverter 115 by hummer control circuit 132, and described light emitting diode 133 is connected with described hummer 131 by hummer control circuit 132.When described multilevel signal comparer 114 exports high level, described hummer 131 connected by this hummer control circuit 132, makes hummer 131 send chimes of doom, and light emitting diode 133 lights luminescence simultaneously; When described multilevel signal comparer 114 output low level, this hummer control circuit 132 does not drive hummer 131 and light emitting diode 133 to work.
Described diode peak envelope detector 112, converts simulating signal to for the wireless signal exported by energy storage device 111, and it comprises diode D1, the second electric capacity C2 and the first resistance R1.The positive pole of described diode D1 connects one end of induction antenna 120, inductance L 1 one end and the second electric capacity C2, the negative pole of diode D1 connects described one end of signal amplifier 113, second electric capacity C2 and one end of the first resistance R1, the other end of the second electric capacity C2 and the other end ground connection of the first resistance R1.
Described multilevel signal comparer 114, becomes digital signal for the analog-signal transitions after being amplified by signal amplifier 113, and is compared by the multistage reference voltage in this digital signal and multilevel signal comparer 114, corresponding output low level or high level.
Please continue to refer to Fig. 1, described signal amplifier comprises: operational amplifier A 1, second resistance R2, the 3rd resistance R3 and the 4th resistance R4, the positive input terminal of described operational amplifier A 1 is by the negative pole of the second resistance R2 connection diode D1, also by the 3rd resistance R3 ground connection, the negative input end of described operational amplifier A 1 is by the 4th resistance R4 ground connection, and the output terminal of operational amplifier A 1 connects multilevel signal comparer 114.The signal received due to induction antenna is fainter, and after filtration module filtering ripple, signal is more stable, then is amplified in input multilevel signal comparer by signal amplifier, itself and reference voltage is compared, obtains comparative result.In the present embodiment, the resistance value ratio of described second resistance and the 3rd resistance is 10, and namely the enlargement factor of operational amplifier is 10 times.
Reference voltage generator 116 is exported in described multilevel signal comparer 114 for generation of multistage reference voltage.For example, reference voltage generator 116 exports N number of reference voltage to multilevel signal comparer 114, wherein, A0 < A1 < A2 < ... < An, namely when portable electromagnetic radiation detection alarm device is near the wireless device worked, this signal can become large gradually, and compare with each reference voltage of multilevel signal comparer 114 gained successively, when this signal is more than or equal to reference voltage Ax, corresponding Bx can export as high level.Such as, eight road signal comparators, when input signal is less than reference voltage A0, then B7 ~ B0 exports is 00000000; When input signal is greater than reference voltage A5, when being less than reference voltage A6, then B7 ~ B0 exports is 00111111; When inputting model and being greater than A7, output is 11111111.
Now multilevel signal comparer 114 can export in digiverter 115 by signal, and this digital signal is become simulating signal again, if signal exports larger, then hummer 131 sound, light emitting diode 133 are brighter.When digiverter 115 is input as 00000000, hummer 131 not sound, light emitting diode 133 does not work; When digiverter 115 input signal is 11111111, hummer 131 is the loudest, and light emitting diode 133 is the brightest.Thus realize wireless signal detecting-alarming function, and can the effectively intensity of detected wireless signals and distance.
Below principle of work of the present invention is described in detail:
Because mobile phone constantly can send radiofrequency signal, when mobile phone is near portable electromagnetic radiation detection alarm device, wireless signal detecting-alarming just receives this faint radiofrequency signal by induction antenna 120.
Due to radiofrequency signal fainter (being generally milliwatt level), so the energy of this radiofrequency signal need be improved by energy storage device 111 energy storage, to put forward high-octane radiofrequency signal by diode peak envelope detector 112 to be afterwards converted to simulating signal and to send to signal amplifier 113, being amplified to multilevel signal comparer 114 by this signal amplifier 113 can identification signal.
Then, be digital signal through multilevel signal comparer 114 by the analog-signal transitions after amplifying, and compare with the multistage reference voltage that reference voltage generator 116 produces, corresponding output high level or low level.Namely when portable electromagnetic radiation detection alarm device is near the wireless device worked, this signal can become large gradually, and compare with each reference voltage of multilevel signal comparer 114 gained successively, when this signal is more than or equal to reference voltage Ax, corresponding Bx can export as high level.When this digital signal is less than reference voltage Ax, corresponding Bx can export as low level.
Then, the level signal that this multilevel signal comparer 114 exports carries out digital-to-analog conversion through digiverter 115, and sends to honeybee ` device control circuit 132 and LED control circuit 134.
Honeybee ` device control circuit 132 and LED control circuit 134, the low level exported according to signal comparator 114 or high level signal are selected whether to drive hummer 131 and whether light light emitting diode 133 to make corresponding actuation of an alarm.Namely when the high level of multilevel signal comparer 114 is input in hummer control circuit 132 and LED control circuit 134, hummer 131 sound, light emitting diode 133 is lighted; When the low level of multilevel signal comparer 114 is input in hummer control circuit 132 and LED control circuit 134, hummer 131 not sound, light emitting diode 133 does not work, thus realizes wireless signal detecting-alarming function.
In sum, a kind of portable electromagnetic radiation detection alarm device provided by the present invention, wireless signal is received owing to have employed induction antenna, and by energy storage, filtering, amplification, flow to warning device more afterwards, realize wireless signal detecting-alarming function, when it is near wireless devices such as mobile phones, send alerting signal, thus prompting user has wireless signal, whether there is electromagnetic radiation, provides users with the convenient; This portable electromagnetic radiation detection alarm device also has the features such as structure is simple, cost is low, easy to carry simultaneously.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (7)
1. a portable electromagnetic radiation detection alarm device, comprising the induction antenna for receiving wireless signal and the warning device for output alarm signal, it is characterized in that, also comprise:
For improving the energy storage device of the wireless energy signal that described induction antenna receives;
Wireless signal for being exported by described energy storage device converts the diode peak envelope detector of simulating signal to;
For described simulating signal is carried out amplifying signal amplifier;
For the analog-signal transitions after amplification is become digital signal, and the multistage reference voltage in this digital signal and multilevel signal comparer is compared, the multilevel signal comparer of corresponding output low level or high level;
Digital signal for being exported by described multilevel signal comparer converts the digiverter of simulating signal to;
For providing the reference voltage generator of multistage reference voltage;
For eliminating the filtration module of ripple signal;
Described induction antenna, energy storage device, filtration module, diode peak envelope detector, signal amplifier, multilevel signal comparer, digiverter are connected successively with warning device; Described reference voltage generator is connected with described multiple signals comparer.
2. portable electromagnetic radiation detection alarm device according to claim 1, is characterized in that, described energy storage device is inductance, and one end of described inductance connects described induction antenna and filtration module, the other end ground connection of inductance.
3. portable electromagnetic radiation detection alarm device according to claim 2, it is characterized in that, described filtration module comprises the first electric capacity, and one end of the first electric capacity connects one end and the diode peak envelope detector of inductance, the other end ground connection of the first electric capacity.
4. portable electromagnetic radiation detection alarm device according to claim 3, is characterized in that, described diode peak envelope detector comprises diode, the second electric capacity and the first resistance; The positive pole of described diode connects one end of induction antenna, inductance one end and the second electric capacity, and the negative pole of diode connects described signal amplifier, one end of the second electric capacity and one end of the first resistance, the other end of the second electric capacity and the other end ground connection of the first resistance.
5. portable electromagnetic radiation detection alarm device according to claim 4, it is characterized in that, described signal amplifier comprises: operational amplifier, the second resistance, the 3rd resistance and the 4th resistance, the positive input terminal of described operational amplifier is by the negative pole of the second resistance connection diode, also by the 3rd resistance eutral grounding, the negative input end of described operational amplifier is by the 4th resistance eutral grounding, and the output terminal of operational amplifier connects multilevel signal comparer.
6. portable electromagnetic radiation detection alarm device according to claim 5, is characterized in that, the resistance value ratio of described second resistance and the 3rd resistance is 10.
7. portable electromagnetic radiation detection alarm device according to claim 1, it is characterized in that, described warning device comprises hummer, for driving the hummer control circuit of described hummer work, light emitting diode and the LED control circuit for connecting described light emitting diode; Described hummer control circuit is connected with the output terminal of digiverter with the public input end of LED control circuit, and the output terminal of described hummer control circuit is connected with described hummer, and the output terminal of described LED control circuit is connected with described light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137844.5A CN104698289A (en) | 2015-03-25 | 2015-03-25 | Portable electromagnetic radiation detection alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137844.5A CN104698289A (en) | 2015-03-25 | 2015-03-25 | Portable electromagnetic radiation detection alarm |
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| CN104698289A true CN104698289A (en) | 2015-06-10 |
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| CN201510137844.5A Pending CN104698289A (en) | 2015-03-25 | 2015-03-25 | Portable electromagnetic radiation detection alarm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643543A (en) * | 2016-07-20 | 2018-01-30 | 佛山市顺德区美的电热电器制造有限公司 | EMC detecting systems and Electromagnetic Heating product |
| CN110132409A (en) * | 2019-05-16 | 2019-08-16 | 中国工程物理研究院应用电子学研究所 | A kind of High-Power Microwave power density/field strength monitoring device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228556C1 (en) * | 1982-07-30 | 1983-12-22 | Siemens AG, 1000 Berlin und 8000 München | Improvement in a device for burglary protection, which operates with electromagnetic and ultrasonic radiation |
| US20060012366A1 (en) * | 2002-06-26 | 2006-01-19 | Feldman John H | Scanner for nuclear quadrupole resonance measurements and method therefor |
| CN201156788Y (en) * | 2008-01-14 | 2008-11-26 | 青岛海信电器股份有限公司 | High frequency head power supply circuit and audio and video receiving apparatus having the circuit |
| CN201726407U (en) * | 2010-06-08 | 2011-01-26 | 惠州Tcl移动通信有限公司 | Improved wireless signal detecting-alarming device |
| CN201758396U (en) * | 2010-05-31 | 2011-03-09 | 惠州Tcl移动通信有限公司 | Wireless signal detecting alarm |
-
2015
- 2015-03-25 CN CN201510137844.5A patent/CN104698289A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228556C1 (en) * | 1982-07-30 | 1983-12-22 | Siemens AG, 1000 Berlin und 8000 München | Improvement in a device for burglary protection, which operates with electromagnetic and ultrasonic radiation |
| US20060012366A1 (en) * | 2002-06-26 | 2006-01-19 | Feldman John H | Scanner for nuclear quadrupole resonance measurements and method therefor |
| CN201156788Y (en) * | 2008-01-14 | 2008-11-26 | 青岛海信电器股份有限公司 | High frequency head power supply circuit and audio and video receiving apparatus having the circuit |
| CN201758396U (en) * | 2010-05-31 | 2011-03-09 | 惠州Tcl移动通信有限公司 | Wireless signal detecting alarm |
| CN201726407U (en) * | 2010-06-08 | 2011-01-26 | 惠州Tcl移动通信有限公司 | Improved wireless signal detecting-alarming device |
Non-Patent Citations (1)
| Title |
|---|
| 任骏原: "任意比例系数的同相比例运算电路", 《现代电子技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643543A (en) * | 2016-07-20 | 2018-01-30 | 佛山市顺德区美的电热电器制造有限公司 | EMC detecting systems and Electromagnetic Heating product |
| CN110132409A (en) * | 2019-05-16 | 2019-08-16 | 中国工程物理研究院应用电子学研究所 | A kind of High-Power Microwave power density/field strength monitoring device and method |
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Application publication date: 20150610 |