CN103368662A - Detection method of electromagnetic radiation and electronic equipment - Google Patents
Detection method of electromagnetic radiation and electronic equipment Download PDFInfo
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- CN103368662A CN103368662A CN2012100826351A CN201210082635A CN103368662A CN 103368662 A CN103368662 A CN 103368662A CN 2012100826351 A CN2012100826351 A CN 2012100826351A CN 201210082635 A CN201210082635 A CN 201210082635A CN 103368662 A CN103368662 A CN 103368662A
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Abstract
The invention provides a detection method of electromagnetic radiation and electronic equipment. The method is applied to the electronic equipment and used for detecting the intensity of electromagnetic radiation of a communication band. The electronic equipment comprises a wireless communication module and a first antenna corresponding to the communication band. The intensity of a received signal of the first antenna is detected by the wireless communication module. The intensity of the received signal is used for acquiring the intensity of the electromagnetic radiation of the communication band. According to the embodiment of the invention, the intensity of the electromagnetic radiation of a corresponding band can be detected via the received signal of the antenna of the electronic equipment, so as to achieve low-cost and user-friendly detection of the electromagnetic radiation and increase popularity of the electromagnetic radiation detection.
Description
Technical field
The present invention relates to electromagnet radiation detection method and electronic equipment.
Background technology
Along with popularizing of industrial expansion and various electronic equipments, beyond industrial area in the past, comprise that a lot of places in living area have all day by day run into the problem of electromagnetic radiation.And, in the stronger area of this electromagnetic radiation, can cause adverse influence to human body.Based on the consideration to health, people more and more wish to understand the amount of electromagnetic radiation in the environment that oneself is in, thereby away from the more intense place of those electromagnetic radiation.
Currently a lot of electromagnet radiation detection instrument have been developed, for detection of the intensity of the electromagnetic radiation under the surrounding enviroment.But these electromagnet radiation detection instrument are as the electromagnet radiation detection instrument of special use, and general cost is higher, and is not easy to carry.And because these electromagnet radiation detection instrument are used for industrial use mostly, domestic consumer does not even know to have this electromagnet radiation detection instrument, so its popularization degree is relatively low to they not a lot of understandings.
Therefore, can detect easily the intensity of the electromagnetic radiation in the environment of living on every side for the user, need novel and improved electromagnet radiation detection method and electronic equipment, thereby so that the user can detect electromagnetic radiation easily with shirtsleeve operation.
Summary of the invention
Therefore, make the present invention for above-mentioned problems of the prior art and demand.
The purpose of the embodiment of the invention provides a kind of electromagnet radiation detection method and electronic equipment, and it can detect by wireless communication module the received signal strength of antenna, thereby obtains the electromagnetic radiation intensity of respective communication frequency range.
An aspect according to the embodiment of the invention, a kind of electromagnet radiation detection method is provided, be applied to an electronic equipment, for detection of the electromagnetic radiation intensity of communications band, described electromagnet radiation detection method comprises: described electronic equipment comprises wireless communication module and first antenna corresponding with described communications band; Described wireless communication module detects the received signal strength of described the first antenna; And utilize described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
In above-mentioned electromagnet radiation detection method, further comprise after the step of the electromagnetic radiation intensity that obtains described communications band: described electronic equipment further comprises display unit; And at the described electromagnetic radiation intensity of described display unit demonstration.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiation intensity of described communications band embodies with the electromagnetic radiance density Pd of described communications band.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiation intensity of described communications band is directly proportional with the electromagnetic radiance density Pd of described communications band.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiance density Pd of described communications band calculates with following formula: Pd=10
[(p+k)/10]Mw/cm
2, wherein p is that received signal strength and the unit of described the first antenna of detecting of described wireless communication module are dBm, and k is that correction factor and the unit of described the first antenna is dB.
In above-mentioned electromagnet radiation detection method, the correction factor k of described the first antenna is relevant with the net sectional area of described the first antenna.
In above-mentioned electromagnet radiation detection method, described communications band is Wifi frequency range, 3G frequency range, LTE frequency range or 4G frequency range.
In above-mentioned electromagnet radiation detection method, describedly show that at described display unit the step of described electromagnetic radiation intensity specifically comprises: the electromagnetic radiation intensity that will obtain described communications band is converted to the first signal of the form that described electronic device-readable gets by single-chip microcomputer; CPU by described electronic equipment is presented at described first signal on the described display unit of described electronic equipment.
In above-mentioned electromagnet radiation detection method, further comprise: described electronic equipment further comprises the second antenna that works in non-communications band; Described wireless communication module detects the received signal strength of described the second antenna; Utilize described received signal strength to obtain the electromagnetic radiation intensity of described non-communications band.
According to the embodiment of the invention on the other hand, provide a kind of electronic equipment, having comprised: first antenna corresponding with the communications band of described electronic equipment; Wireless communication module is for detection of the received signal strength of described the first antenna; And electro-magnetic radiation detection modules, be used for utilizing described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
By electromagnet radiation detection method and the electronic equipment according to the embodiment of the invention, the reception signal of antenna that can be by electronic equipment detects the electromagnetic radiation intensity of corresponding band easily, thereby realize that cost hangs down and electromagnet radiation detection easy and simple to handle, to improve the popularization degree of electromagnet radiation detection.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the indicative flowchart that illustrates according to the electromagnet radiation detection method of the embodiment of the invention;
Fig. 2 is the indicative flowchart that illustrates according to the electronic equipment of the embodiment of the invention
Fig. 3 is the schematic block diagram that illustrates according to the electro-magnetic radiation detection modules of the electronic equipment of the embodiment of the invention.
Embodiment
Below, in connection with electromagnet radiation detection method and the electronic equipment of accompanying drawing detailed description according to the embodiment of the invention.
An aspect according to the embodiment of the invention, a kind of electromagnet radiation detection method is provided, be applied to an electronic equipment, for detection of the electromagnetic radiation intensity of communications band, described electromagnet radiation detection method comprises: described electronic equipment comprises wireless communication module and first antenna corresponding with described communications band; Described wireless communication module detects the received signal strength of described the first antenna; Utilize described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
By above-mentioned electromagnet radiation detection method, can applying electronic equipment self with wireless communication module and the antenna electromagnetic radiation intensity that detects the respective communication frequency range, thereby avoid using special-purpose electromagnet radiation detection instrument, saved the cost that carries out electromagnet radiation detection.And, the intensity of the signal that above-mentioned electromagnet radiation detection method can arrive based on antenna reception directly obtains the electromagnetic radiation intensity of respective communication frequency range, avoided loaded down with trivial details operation, so that the user does not need special knowledge can obtain the electromagnetic radiation intensity of peripheral environment of living in yet, this helps to significantly improve the popularization degree of electromagnet radiation detection.
Fig. 1 is the indicative flowchart that illustrates according to the electromagnet radiation detection method of the embodiment of the invention.As shown in Figure 1, electromagnet radiation detection method according to the embodiment of the invention is applied to an electronic equipment, for detection of the electromagnetic radiation intensity of communications band, this electromagnet radiation detection method comprises: S1, electronic equipment comprise wireless communication module and first antenna corresponding with this communications band; S2, wireless communication module detect the received signal strength of the first antenna; S3 utilizes received signal strength to obtain the electromagnetic radiation intensity of communications band.
In above-mentioned electromagnet radiation detection method, further comprise after the step of the electromagnetic radiation intensity that obtains described communications band: described electronic equipment further comprises display unit; And at the described electromagnetic radiation intensity of described display unit demonstration.
Current electronic equipment, for example notebook computer and mobile phone all have display unit, after having obtained the electromagnetic radiation intensity of respective communication frequency range with existing wireless communication module and antenna, can show the electromagnetic radiation intensity that obtains at display unit, thereby so that the user can experience the electromagnetic radiation intensity of peripheral environment of living in intuitively, to strengthen user's facility.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiation intensity of described communications band embodies with the electromagnetic radiance density Pd of described communications band.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiation intensity of described communications band is directly proportional with the electromagnetic radiance density Pd of described communications band.
Here, in the electromagnet radiation detection method according to the embodiment of the invention, electromagnetic radiance density Pd with the respective communication frequency range represents electromagnetic radiation intensity, because this method for expressing is general popularization way, can improve the electromagnet radiation detection adaptation of methods according to the embodiment of the invention, thereby improve the popularization of electromagnet radiation detection.Certainly, it will be understood by those skilled in the art that the electromagnetic radiation intensity that also can represent with other index the respective communication frequency range, the embodiment of the invention and being not intended to limits arbitrarily this.
And in the electromagnet radiation detection method according to the embodiment of the invention, the electromagnetic radiation intensity of respective communication frequency range is set to be directly proportional with the electromagnetic radiance density Pd of respective communication frequency range.Here, it will be appreciated by those skilled in the art that, the expression mode that the electromagnetic radiation intensity of respective communication frequency range is directly proportional with the electromagnetic radiance density Pd of respective communication frequency range only is a kind of example according to the electromagnet radiation detection method of the embodiment of the invention, also can come to represent with the electromagnetic radiance density of respective communication frequency range in other expression mode the electromagnetic radiation intensity of respective communication frequency range.For example, in the situation that electromagnetic radiance density is lower than a certain threshold value, proportionally represent electromagnetic radiation intensity with electromagnetic radiance density, and when electromagnetic radiance density surpasses a certain threshold value, then with the exponential electromagnetic radiation intensity that represents of electromagnetic radiance density, thereby so that electromagnetic radiation intensity increases quickly, in order to point out electromagnetic radiation intensity to surpass safe range to the user.Here, it will be understood by those skilled in the art that the embodiment of the invention and being not intended to limits arbitrarily this.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiance density Pd of described communications band calculates with following formula: Pd=10
[(p+k) 10]Mw/cm
2, wherein p is that received signal strength and the unit of described the first antenna of detecting of described wireless communication module are dBm, and k is that correction factor and the unit of described the first antenna is dB.
In the electromagnet radiation detection method according to the embodiment of the invention, k obtains by antenna is calibrated, for example, and at 1mw/cm
2The electromagnetic radiation space in, the intensity that antenna end receives is 0.5mw, the net sectional area of antenna then is 0.5cm so
2, it is taken the logarithm, then correction factor K should be+3dB.
In above-mentioned electromagnet radiation detection method, the correction factor k of described the first antenna is relevant with the net sectional area of described the first antenna.
In aforesaid electromagnet radiation detection method according to the embodiment of the invention, only described the signal strength signal intensity that electronic equipment is received with the first antenna detection, thereby obtained the example of the electromagnetic radiation intensity of respective communication frequency range.In fact, for the correction factor k of antenna, each antenna has the different antenna calibration factors, and this correction factor is relevant with the net sectional area of antenna.And because different antennae is applied in fact different frequency ranges, and for different frequency range, the net sectional area of antenna under identical received signal strength is not identical, and the correction factor of this antenna is also relevant with the radio band that antenna is applied to.
In above-mentioned electromagnet radiation detection method, the electromagnetic radiance density Pd of described communications band can also be simply with Pd=(P+K) mw/cm
2Mode calculate, wherein, P is that received signal strength and the unit of described the first antenna of detecting of described wireless communication module is dBm, and K is that correction factor and the unit of described the first antenna is dB.
Therefore, be not limited to the computational methods of specific electromagnetic radiance density according to the electromagnet radiation detection method of the embodiment of the invention, those skilled in the art can adjust the computational methods of electromagnetic radiance density as required.For example, in the situation that the calculating accuracy of electromagnetic radiance density is had relatively high expectations, can adopt the electromagnetic radiance density calculation method of more complicated, thus the precision of the electromagnetic radiance density that assurance obtains.But, if the not so high requirement of computational accuracy to electromagnetic radiance density, and hope reduces the cost for detection of electromagnetic radiation intensity as far as possible, then also can adopt fairly simple electromagnetic radiance density calculation method, thereby reduce the complexity of the calculating of electromagnetic radiance density, correspondingly reduce the cost of electromagnet radiation detection.
In above-mentioned electromagnet radiation detection method, described communications band is Wifi frequency range, 3G frequency range, LTE frequency range or 4G frequency range.
Here, because electronic equipment can be applied under the different communication environments, the communications band that therefore detects is also corresponding to the frequency range under the different communication environment, and this frequency range can comprise Wifi frequency range, 3G frequency range, LTE frequency range or 4G frequency range.Here, it will be appreciated by those skilled in the art that, development along with the communication technology, electronic equipment also may be applied to other communications band from now on, and under the communication environment in this future, also can use the electromagnet radiation detection method according to the embodiment of the invention, the embodiment of the invention also is not intended to and is limited to any existing special frequency channel.
In above-mentioned electromagnet radiation detection method, describedly show that at described display unit the step of described electromagnetic radiation intensity specifically comprises: the electromagnetic radiation intensity that will obtain described communications band is converted to the first signal of the form that described electronic device-readable gets by single-chip microcomputer; CPU by described electronic equipment is presented at described first signal on the described display unit of described electronic equipment.
The above mentions, in existing electronic equipment, usually do not comprise the function that detects for electromagnetic radiation intensity, therefore, in the situation of the electromagnetic radiation intensity that has obtained the respective communication frequency range by above-mentioned electromagnet radiation detection method according to the embodiment of the invention, electronic equipment can not directly show the electromagnetic radiation intensity that obtains usually.Therefore, in the electromagnet radiation detection method according to the embodiment of the invention, by single-chip microcomputer the electromagnetic radiation intensity of the respective communication frequency range that obtains is converted to the signal that electronic device-readable is got, and by the processor of electronic equipment, for example CPU is presented at this signal on the display unit of electronic equipment, thereby so that the user can see the electromagnetic radiation intensity under the current environment of living in intuitively, promote user's Discussing Convenience.
In above-mentioned electromagnet radiation detection method, further comprise: described electronic equipment further comprises the second antenna that works in non-communications band; Described wireless communication module detects the received signal strength of described the second antenna; Utilize described received signal strength to obtain the electromagnetic radiation intensity of described non-communications band.
As mentioned above, by wireless communication module and the antenna that electronic equipment carries, can detect the electromagnetic radiation intensity of this electronic equipment in the specific communications frequency range.But, owing to wireless communication module and the antenna of electronic equipment is often used in communicating by letter in the specific communications band, therefore can't detect the received signal strength in other non-communications band.In addition, because in current environment, a large amount of electromagnetic radiation is present in fact in the non-communications band, for example, the electromagnetic wave of industrial application is present in other radio band in a large number.In fact, because in order to guarantee the communication quality of electronic equipment in communications band, just the residing radio band of electromagnetic radiation that other industrial equipment of having avoided extensively having existed this moment when selecting communications band produces, therefore, in the situation that the distance industrial area is nearer, perhaps around other living facilities of for example transformer station and so on, electromagnetic radiation in this non-communications band has occupied leading position, and the electromagnetic radiation intensity that the user need to understand in this non-communications band equally comes the electromagnetic radiation situation under the periphery environment of living in is comprehensively understood.
With the main thought of above-mentioned electromagnet radiation detection method according to the embodiment of the invention similarly, in electronic equipment, may further include other antenna that works in non-communications band, and obtain the electromagnetic radiation intensity of non-communications band by the received signal strength that detects this antenna.Here, it will be appreciated by those skilled in the art that, in the electromagnet radiation detection method according to the embodiment of the invention, one or more antennas that work in non-communications band can be comprised in addition as required, and the antenna of which non-communications band can be selected to work in according to concrete applied environment.For example, under the environment around the above-mentioned transformer station, the antenna of the radio band of transformer station can be selected to work in, in addition, also other antenna can be selected.Here, the embodiment of the invention and be not intended to for the number of antenna and its concrete radio band of working and make any restriction.
According to the embodiment of the invention on the other hand, provide a kind of electronic equipment, having comprised: first antenna corresponding with the communications band of described electronic equipment; Wireless communication module is for detection of the received signal strength of described the first antenna; And electro-magnetic radiation detection modules, be used for utilizing described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
Fig. 2 is the schematic block diagram that illustrates according to the electronic equipment of the embodiment of the invention.As shown in Figure 2, electronic equipment 10 comprises: first antenna 11 corresponding with the communications band of electronic equipment 10; Wireless communication module 12 is for detection of the received signal strength of the first antenna 11; With electro-magnetic radiation detection modules 13, be used for utilizing the received signal strength that is detected by wireless communication module 12 to obtain the electromagnetic radiation intensity of this communications band.
In above-mentioned electronic equipment, further comprise display unit, be used for showing the electromagnetic radiation intensity of the described communications band that is obtained by electro-magnetic radiation detection modules thereon.
In above-mentioned electronic equipment, described electro-magnetic radiation detection modules embodies the electromagnetic radiation intensity of described communications band with the electromagnetic radiance density Pd of described communications band.
In above-mentioned electronic equipment, the electromagnetic radiance density Pd of described electro-magnetic radiation detection modules and described communications band proportionally embodies the electromagnetic radiation intensity of described communications band.
In above-mentioned electronic equipment, the electromagnetic radiation intensity of described communications band calculates the electromagnetic radiance density Pd:Pd=10 of described communications band with following formula
[(p+k)/10]Mw/cm
2, wherein p is that received signal strength and the unit of described the first antenna of detecting of described wireless communication module are dBm, and k is that correction factor and the unit of described the first antenna is dB.
In above-mentioned electronic equipment, the correction factor k of described the first antenna is relevant with the net sectional area of described the first antenna.
In above-mentioned electronic equipment, described communications band is Wifi frequency range, 3G frequency range, LTE frequency range or 4G frequency range.
In above-mentioned electronic equipment, further comprise: single-chip microcomputer, the electromagnetic radiation intensity that is used for obtaining described communications band are converted to the first signal of the form that described electronic device-readable gets; And processor is presented at described first signal on the described display unit of described electronic equipment.
In above-mentioned electronic equipment, further comprise: the second antenna that works in non-communications band; Wherein, described wireless communication module detects the received signal strength of described the second antenna, and described electro-magnetic radiation detection modules utilizes the received signal strength of described the second antenna that described wireless communication module detects to obtain the electromagnetic radiation intensity of described non-communications band.
In the electronic equipment according to the embodiment of the invention, the first antenna and wireless communication module can be existing wireless communication module and the antennas of the electronic equipment of for example notebook computer and so on, this wireless communication module can detect the residing communication channel of antenna RSSI (Received Signal Strength Indication: received signal strength indicator) and noise, to determine the received signal strength of antenna.
In addition, in the electronic equipment according to the embodiment of the invention, electro-magnetic radiation detection modules can have with existing electromagnet radiation detection instrument and similarly configures.Fig. 3 is the schematic block diagram that illustrates according to the electro-magnetic radiation detection modules of the electronic equipment of the embodiment of the invention, as shown in Figure 3, electronic equipment according to the embodiment of the invention can pass through wide-band amplifier 100, low pass filter 101, wide-band amplifier 102, detecting circuit 103 and operational amplifier 104, come to measure via antenna (for example, the antenna of non-communications band) the electromagnetic radiance density of non-communications band.
Here, it will be understood by those skilled in the art that according to other details of the electronic equipment of the embodiment of the invention with about according to the embodiment of the invention description similar of electromagnet radiation detection method, will repeat no more for fear of redundancy.
By electromagnet radiation detection method and the electronic equipment according to the embodiment of the invention, the reception signal of antenna that can be by electronic equipment detects the electromagnetic radiation intensity of corresponding band easily, thereby realize that cost hangs down and electromagnet radiation detection easy and simple to handle, to improve the popularization degree of electromagnet radiation detection.
The present invention has been described in detail with reference to specific embodiment.Yet clearly, in the situation that do not deviate from spirit of the present invention, those skilled in the art can carry out change and replacement to embodiment.In other words, the present invention is open with the form of explanation, rather than explains with being limited.Judge main idea of the present invention, should consider appended claim.
Claims (10)
1. an electromagnet radiation detection method is applied to an electronic equipment, and for detection of the electromagnetic radiation intensity of communications band, described electromagnet radiation detection method comprises:
Described electronic equipment comprises wireless communication module and first antenna corresponding with described communications band;
Described wireless communication module detects the received signal strength of described the first antenna; And
Utilize described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
2. electromagnet radiation detection method as claimed in claim 1 further comprises after the step of the electromagnetic radiation intensity that obtains described communications band:
Described electronic equipment further comprises display unit; And
Show described electromagnetic radiation intensity at described display unit.
3. electromagnet radiation detection method as claimed in claim 1, wherein, the electromagnetic radiation intensity of described communications band embodies with the electromagnetic radiance density Pd of described communications band.
4. electromagnet radiation detection method as claimed in claim 3, wherein, the electromagnetic radiation intensity of described communications band is directly proportional with the electromagnetic radiance density Pd of described communications band.
5. electromagnet radiation detection method as claimed in claim 3, wherein, the electromagnetic radiance density Pd of described communications band calculates with following formula:
Pd＝10
[(p+k)/10]mw/cm
2
Wherein p is that received signal strength and the unit of described the first antenna of detecting of described wireless communication module are dBm, and k is that correction factor and the unit of described the first antenna is dB.
6. electromagnet radiation detection method as claimed in claim 5, wherein, the correction factor k of described the first antenna is relevant with the net sectional area of described the first antenna.
7. electromagnet radiation detection method as claimed in claim 1, wherein, described communications band is Wifi frequency range, 3G frequency range, LTE frequency range or 4G frequency range.
8. electromagnet radiation detection method as claimed in claim 2 wherein, describedly shows that at described display unit the step of described electromagnetic radiation intensity specifically comprises:
The electromagnetic radiation intensity that obtains described communications band is converted to the first signal of the form that described electronic device-readable gets by single-chip microcomputer;
CPU by described electronic equipment is presented at described first signal on the described display unit of described electronic equipment.
9. such as the described electromagnet radiation detection method of any one in the claim 1 to 8, further comprise:
Described electronic equipment further comprises the second antenna that works in non-communications band;
Described wireless communication module detects the received signal strength of described the second antenna;
Utilize described received signal strength to obtain the electromagnetic radiation intensity of described non-communications band.
10. electronic equipment comprises:
First antenna corresponding with the communications band of described electronic equipment;
Wireless communication module is for detection of the received signal strength of described the first antenna; And
Electro-magnetic radiation detection modules is used for utilizing described received signal strength to obtain the electromagnetic radiation intensity of described communications band.
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| CN113092878A (en) * | 2021-03-31 | 2021-07-09 | 北京环境特性研究所 | Test method and detection device for electromagnetic radiation of W-band environment |
| CN113092878B (en) * | 2021-03-31 | 2023-01-20 | 北京环境特性研究所 | Test method and detection device for electromagnetic radiation of W-band environment |
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