CN107449973A - A kind of terminal detection method of electromagnetic radiation, device and terminal - Google Patents
A kind of terminal detection method of electromagnetic radiation, device and terminal Download PDFInfo
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- CN107449973A CN107449973A CN201710693114.2A CN201710693114A CN107449973A CN 107449973 A CN107449973 A CN 107449973A CN 201710693114 A CN201710693114 A CN 201710693114A CN 107449973 A CN107449973 A CN 107449973A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
- G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
- G01R29/0857—Dosimetry, i.e. measuring the time integral of radiation intensity; Level warning devices for personal safety use
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
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Abstract
It is of the invention to disclose a kind of terminal detection method of electromagnetic radiation, device and terminal in fact, specifically, influencing whether the capacitance feature of electric capacity according to electromagnetic wave, the unmasked region of inductive terminations electromagnetic radiation is provided for using the capacitive touch screen set in the terminal；Then, the capacitance detecting value of capacitance touch screen is compared, if the detection capacitance is less than touch operation threshold value, that is, meets the preparatory condition of terminal electromagnetic radiation early warning, then perform corresponding early warning operation to prompt user's reasonable employment terminal.The embodiment of the present invention, by the design to existing capacitance touch screen, the actual electromagnetic radiation of itself and surrounding environment of present terminal can be directly detected, the accuracy of terminal radiation detection can be improved；Also, it is quick to perform early warning operation according to the capacitance of detection and the corresponding relation of the Secure Threshold of pre-given electromagnetic amount of radiation, without carrying out complicated data operation, and then can ensure to radiate the promptness of early warning.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of terminal detection method of electromagnetic radiation, device and terminal.
Background technology
With the development of science and technology, the use of mobile terminal such as mobile phone, intelligent watch is increasingly popularized.User is using
During mobile terminal, radio wave is transmitted between mobile terminal and cellular basestation, these radio waves are referred to as terminal electromagnetic radiation.
The electromagnetic wave of above-mentioned terminal radiation not only influences on the health care belt of human body, can also influence mobile terminal internal electron
The normal work of devices.For example, when terminal radiation intensity is excessive, the capacitance touch screen of terminal may be caused to grasp by mistake
Make, therefore, the capacitance touch screen in existing terminal is usually provided with electromagnetic armouring structure, electricity is protected it to shield electromagnetic radiation
Magnetic wave disturbs.In addition, in order to reduce influence of the mobile terminal electromagnetic radiation to user, in correlation technique, will generally calculate
The method that mobile terminal relative radiation value feedback provides the user with early warning.Specific alarm mode is as follows：First, obtain and lead to mobile
The relevant parameter of the electron radiation of terminal is interrogated, for example, transmission power, mode of operation, signal intensity etc.；Then, using setting in advance
Weights corresponding to each parameter put, calculate the relative radiation value of mobile terminal；Finally, by the relative radiation value calculated with
Predetermined threshold value compares, if exceeding predetermined threshold value, provides a user early warning.
The parameters such as above-mentioned transmission power using mobile terminal, signal intensity obtain the side of its relative radiation value to calculate
Formula, although the parameter such as the transmission power of terminal, signal intensity is larger to the intensity effect of terminal electromagnetic radiation, thus calculate
Obtained relative radiation value still has a certain distance with actual mobile phone radiation value, for example, the uniformity of terminal power device
Difference, antenna structure device and the consistent sex differernce of assembling.
The content of the invention
The invention provides a kind of terminal detection method of electromagnetic radiation, device and terminal, with the electromagnetism of accurate detection terminal
Amount of radiation, to prevent the electromagnetic radiation of mobile terminal excessive, the problem of endangering easily is formed to health.
First aspect according to embodiments of the present invention, there is provided a kind of terminal detection method of electromagnetic radiation, applied to
The terminal of capacitance touch screen, wherein, the capacitance touch screen includes being capable of the unmasked region of inductive electromagnetic radiation and except institute
The ELECTROMAGNETIC RADIATION SHIELDING region outside unmasked region is stated,
Methods described includes：
Obtain the capacitance detecting value of the capacitance touch screen；
If the capacitance detected value is less than touch operation threshold value, pre- corresponding with capacitance detecting value of generation
Alert prompt message；
Send the early warning information.
Second aspect according to embodiments of the present invention, there is provided a kind of terminal electromagnetic radiation detection device, the device include
Processor, memory and communication interface, the processor, the memory are connected with the communication interface by communication bus；
The communication interface, for obtaining the capacitance detecting value of the capacitance touch screen in the terminal；
The memory, for store program codes；
The processor, for reading the program code stored in the memory, and perform the embodiment of the present invention first
Method described in aspect.
The third aspect according to embodiments of the present invention, there is provided a kind of terminal, it is characterised in that the terminal includes the present invention
The terminal electromagnetic radiation detection device that embodiment second aspect provides, in addition to capacitance touch screen, wherein：
The terminal electromagnetic radiation detection device electrically connects with the capacitance touch screen.
From above technical scheme, a kind of terminal detection method of electromagnetic radiation provided in an embodiment of the present invention, device and
Terminal, the capacitance feature of electric capacity is influenced whether according to electromagnetic wave, set and used using the capacitive touch screen set in the terminal
In the unmasked region of inductive terminations electromagnetic radiation；Then, the capacitance detecting value of capacitance touch screen is compared, if
The detection capacitance is less than touch operation threshold value, that is, meets the preparatory condition of terminal electromagnetic radiation early warning, then performs corresponding pre-
Alert prompting is operated to prompt user's reasonable employment terminal.The embodiment of the present invention, can be with by the design to existing capacitance touch screen
The actual electromagnetic radiation of itself and surrounding environment of present terminal is directly detected, the accuracy of terminal radiation detection can be improved；
Also, according to the capacitance of detection and the corresponding relation of the Secure Threshold of pre-given electromagnetic amount of radiation, early warning operation is performed, without entering
The complicated data operation of row, and then can ensure to radiate the promptness of early warning.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structure and equivalent capacity schematic diagram of capacitance touch screen of the prior art；
Fig. 2 is that user touches the equivalent capacity schematic diagram formed during the capacitance touch screen in Fig. 1；
Fig. 3 is the basic structure schematic diagram of the touch-screen in a kind of terminal provided in an embodiment of the present invention；
Fig. 4 is a kind of basic procedure schematic diagram of terminal detection method of electromagnetic radiation provided in an embodiment of the present invention；
Fig. 5 is the basic procedure schematic diagram of another terminal detection method of electromagnetic radiation provided in an embodiment of the present invention；
Fig. 6 is the basic procedure schematic diagram of another terminal detection method of electromagnetic radiation provided in an embodiment of the present invention；
Fig. 7 is a kind of basic structure schematic diagram of terminal electromagnetic radiation detection device provided in an embodiment of the present invention.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
With the rise of the intelligent terminals such as smart mobile phone, tablet personal computer, the application of capacitive touch screen in the terminal is also got over
Come more extensive.Fig. 1 is the structure and equivalent capacity schematic diagram of capacitance touch screen of the prior art.As shown in figure 1, its is basic
Structure is：It is that one layer of thin-film conductor layers 02 (be otherwise known as capacitive sensing unit) are coated with substrate 03, for example, in substrate 03
Upper making transverse electrode and longitudinal electrode, in normal operation, transverse electrode sends pumping signal successively, and longitudinal electrode is same
When reception signal, and then the coupling capacitance size of horizontal and vertical electrode joint can be obtained, be set again in conductor layer 02
There is one layer of glassivation 01.In addition, capacitance detection unit is additionally provided with the terminal, for detecting capacitive sensing list in touch-screen
The capacitance (referred to as, the capacitance of touch-screen) of member.
Electric capacity Cx between capacitive sensing unit and ground be present, capacitance detection unit to capacitive sensing unit output current, and
The voltage-to-ground of capacitive sensing unit is measured, so as to calculate capacitive sensing unit direct-to-ground capacitance.Specifically, work as finger not
When on capacitive sensing unit, Cx is equal to the parasitic capacitance Cp of system.Fig. 2 is shape when user touches the capacitance touch screen in Fig. 1
Into equivalent capacity schematic diagram, as shown in Fig. 2 when finger touches capacitive sensing cell surface, finger and capacitive sensing unit
A simple parallel plate capacitor can be formed by glassivation 01, with finger electric capacity CfTo represent, wherein, CfIt is distribution electricity
The reduced form of appearance, including human body and return path be to the effect of ground plane, therefore, when finger is located at touch screen surface, electricity
Hold the electric capacity Cx=Cp+C between sensing unit and groundf。
Further, according to the principle of electromagnetic interference, the electromagnetism in the electromagnetic wave or terminal local environment of terminal radiation
Ripple, the change of capacitive sensing cell capacitance value can be equally influenceed, specifically, electromagnetic intensity is stronger, the detection of capacitive sensing unit
The Cx values arrived are bigger.According to the These characteristics of capacitance touch screen, designed in the capacitance touch screen of the embodiment of the present invention in the terminal
It is capable of the unmasked region of inductive electromagnetic radiation, and the capacitance according to detected by unmasked region, performs terminal radiation
Prompting operation.
Based on above-mentioned principle, the terminal detection method of electromagnetic radiation and device that provide the present embodiment are carried out below detailed
Introduce.Fig. 3 is the basic structure schematic diagram of the touch-screen in a kind of terminal provided in an embodiment of the present invention.The embodiment of the present invention with
Exemplified by intelligent watch, as shown in figure 3, the intelligent watch include being internally provided with the table ear 70 of communication antenna, display screen 20 and
The capacitance touch screen 30 being arranged on display screen 20.
The back side of usual display screen 20 is provided with wiring board, according to electromagnetic induction principle, electricity of the metallic conductor in alternation
Induced-current and electric field can be produced in magnetic field, so above-mentioned wiring board typically can be all grounded, and then electromagnetic shielding can be realized
Effect.Therefore, the region (image display area) that display screen 20 overlaps with capacitance touch screen 30 is shielding area, can will not be by
To the interference of electromagnetic radiation, and exceed the electric capacity sense in the region of display screen 20, i.e. both non-coincidence regions in capacitance touch screen 30
Unit is answered, can be influenceed by electromagnetic radiation.Based on These characteristics, non-coincidence area of the present example in capacitance touch screen 30
Domain sets the unmasked region 31 for being capable of inductive electromagnetic radiation and the ELECTROMAGNETIC RADIATION SHIELDING area in addition to the unmasked region 31
Domain 32, wherein, ELECTROMAGNETIC RADIATION SHIELDING region 32 can be by increasing the electromagnetic shielding knot such as shielding material or metal material ground connection
Structure shields influence of the electromagnetic radiation to touch-screen.
It is, of course, also possible to unmasked region 31 to be arranged on to the other positions of capacitance touch screen 30, for example, display screen 20 with
The region that capacitance touch screen 30 overlaps.Furthermore it is also possible to the non-coincidence region in capacitance touch screen 30 is not provided with any shielding
Structure, it can be set according to the actual requirements as the non-shielded for inductive electromagnetic radiation, the i.e. area of non-shielded.
Further, it is adjusted to close in order to which above-mentioned non-shielded 31 to be detected to the sensitivity of electromagnetic radiation and triggering threshold value
The scope of reason, present example additionally provides the area of non-shielded 31 and determines method, specific as follows：
First, the non-coincidence region in capacitance touch screen 30 and display screen 20 is not provided with any shielding construction, in the shape
It is maximum by the transmission power setting of wrist-watch antenna under state, obtains the capacitance detecting value of now capacitance touch screen.If above-mentioned electricity
When holding caused capacitance when detected value has exceeded finger touch capacitance touch screen 30 and produced touch operation response, then subtract
The area of small non-shielded 31, that is, reduce induction of the capacitance touch screen 30 to terminal electromagnetic radiation, to prevent electromagnetic radiation
Caused capacitance variation, triggering capacitance touch screen miss corresponding touch operation.Further, if above-mentioned capacitance detecting value is less than
The detection sensitivity of capacitance touch screen, then increase the area of non-shielded 31, specifically, can be by increasing coupling material (such as
Increase electrode conductor thickness, the width of capacitive sensing unit) increase the area of non-shielded 31, or, end can also be adjusted
Hold the modes such as the relative position of antenna and non-shielded 31, the size for adjusting antenna, electromagnetism of the increase antenna to non-shielded 31
Radiation level.
The present embodiment is when designing non-shielded 31, just with to the maximum antenna of terminal electromagnetic radiation
Transmission power, certainly, in specific implementation process, the other devices that electromagnetic radiation can be produced in terminal can also be considered,
Non- shielded 31 is designed, the present embodiment will not be repeated here.
In addition, above-described embodiment is simply by can only be exemplified by wrist-watch, it is, of course, also possible to be other tools such as mobile phone, tablet personal computer
There is the terminal of capacitance touch screen.
Based in the above-mentioned terminal with capacitance touch screen, capacitance touch screen includes being capable of the unmasked of inductive electromagnetic radiation
Region and the structure design in the ELECTROMAGNETIC RADIATION SHIELDING region in addition to the unmasked region, present example additionally provide
The detection method of terminal electromagnetic radiation.Fig. 4 is a kind of the basic of terminal detection method of electromagnetic radiation provided in an embodiment of the present invention
Schematic flow sheet.As shown in figure 4,
Step S110：Obtain the capacitance detecting value of the capacitance touch screen.
Specifically, first, capacitance detection unit carries out the detection of real-time continuous to the electric capacity of capacitance touch screen or pressed
Detected according to predetermined period, wherein, the capacitance touch screen in the present embodiment can be surface-type capacitance touch screen, transmission-type electricity
Hold touch-screen, spontaneous capacitive touch screen or mutual capacitance type touch screen etc., its capacitance detection unit is to the specific of capacitance
Detection mode, can correspondingly detect the progress of circuit working method according to all kinds of touch-screens, and present example will not be repeated here.So
Afterwards, the capacitance detecting value for detecting obtained capacitance touch screen is sent to the processor in terminal by capacitance detection unit.
Capacitance detection unit in the present embodiment is relative to the functional module of processor independence, such as sets independent touch-control
IC, certainly, capacitance detection unit can be with some or all of settings within a processor, i.e., processor also assists in capacitance detection
Work, the present embodiment are not specifically limited herein.
Step S120：If the capacitance detected value is less than touch operation threshold value, generation and the capacitance detecting value
Corresponding early warning information.
Specifically, the detection capacitance got is compared processor, if the capacitance detected value is more than
Or equal to touch operation threshold value, then perform the flow for responding touch control operation；If grasped on the contrary, the capacitance detected value is less than to touch
Make threshold value, then the early warning information corresponding with capacitance detecting value is generated, for example, utilizing the light of terminal, motor vibration
The devices such as device, loudspeaker and screen send prompt message to user.
Wherein, the touch operation threshold value in the present embodiment, refer to user touch capacitance touch screen when, terminal handler according to
Detect capacitance control capacitance touch screen and produce the corresponding capacitance of touch operation response, for example, finger touches capacitive touch
Just there is corresponding touch-control to respond when touching screen, when the capacitance of detection is more than 4000, then it is touch operation threshold value to demarcate 4000.
In addition, in the present embodiment when capacitance detected value is less than touch operation threshold value, early warning information is generated, not
It is that the capacitance detecting value reminded does not have lower limit or is infinitesimal value, in specific implementation, its lower limit can be set
It is any value between zero, or zero and touch operation threshold value.
Preferably, in order to shield the interference touching signals in surrounding environment, only when touch-screen detects that capacitance exceedes
During touch detection threshold value, it can just be sent to the processor of terminal and interrupt wake-up signal, processor carries out the detection according to touch-screen
Capacitance carries out corresponding touch judgement processing, i.e., when detection capacitance is less than touch detection threshold value, then it is assumed that and it is invalid signals,
It will not be sent to processor and interrupt wake-up signal.The lower limit for the capacitance detecting value for carrying out early warning is arranged to touch by the present embodiment
Detection threshold value, i.e., only capacitance detected value is more than touch detection threshold value and is less than touch operation threshold value, then generation and the electricity
Hold the corresponding early warning information of detected value.
Using above-mentioned setting, non-shielded in capacitance touch screen is arranged on to touch inspection to the induced electricity capacitance of electromagnetic radiation
Survey between threshold value and touch operation threshold value, so it is possible to prevente effectively from interference touch to touch-screen, is erroneously interpreted as electric
The situation of magnetic disturbance.
Step S130：Send the early warning information.
For example, the light prompt signal of generation to be sent to the light in terminal, light is set to remind use in a manner of glistening
Family；Or the auditory tone cues information of generation is sent to the loudspeaker in terminal, reminded in a manner of loudspeaker sends prompt tone
User etc..
Above-mentioned detection scheme provided in an embodiment of the present invention, the capacitance feature of electric capacity is influenced whether according to electromagnetic wave, profit
The unmasked region of inductive terminations electromagnetic radiation is provided for the capacitive touch screen set in the terminal, by existing electricity
Hold the design of touch-screen, can directly detect the actual electromagnetic radiation of itself and surrounding environment of present terminal, avoid calculating
Obtained relative radiation value has the problem of gap with actual mobile phone radiation value, can improve the accurate of terminal radiation detection
Property；In addition, according to the capacitance of detection and the corresponding relation of the Secure Threshold of pre-given electromagnetic amount of radiation, it is quick to perform early warning behaviour
Make, without carrying out complicated data operation, and then can ensure to radiate the promptness of early warning, effectively prevent user in using terminal
And the situation that position is constantly moved, the caused radiation value calculated by relevant parameter have delay with current radiation value
And the problem of deviation.
It is the key factor for influenceing influence of the electromagnetic radiation to human body for the distance of electromagnetic radiation source and human body.This reality
Apply example and additionally provide another terminal detection method of electromagnetic radiation.Fig. 5 is another terminal electromagnetism provided in an embodiment of the present invention
The basic procedure schematic diagram of radiation detecting method.As shown in figure 5, this method specifically comprises the following steps：
Step S210：Obtain the capacitance detecting value of the capacitance touch screen.
Step S220：If the capacitance detected value is less than touch operation threshold value, obtain the terminal and user it
Between distance.
If specifically, the capacitance detected value is more than or equal to touch operation threshold value, response touch control operation is performed
Flow；If on the contrary, the capacitance detected value is less than touch operation threshold value, the range sensor in terminal etc. can be utilized to examine
Survey device and obtain the distance between terminal and user.
Further, to obtain the distance between terminal and the specific body part of user, as between user's head and terminal
Distance, the progress such as the image collecting device in terminal, gravity sensor and range sensor can also be utilized to coordinate, obtained eventually
The distance between end and user.
Step S230：Calculated according to the distance under the capacitance detected value, the electromagnetic radiation pair of the terminal
The actual emanations value of the user.
Specifically, capacitance detecting value (corresponding to terminal transmission power), terminal and the human body pre-established can be utilized
Distance and actual emanations value between model, obtain under the distance, the radiation of the actual electromagnetic of terminal-pair user.
Step S240：If the actual emanations value exceeds default radiation threshold value, generation and the actual emanations value phase
Corresponding early warning information.
If the actual emanations value calculated exceeds default radiation threshold value, early warning prompting is carried out, specific alerting pattern can
With reference to above-described embodiment, will not be repeated here.Further, upper limit radiation threshold value can also be set, if for example, calculated
Actual emanations value beyond upper limit radiation threshold value, then the actual emanations value for illustrating to calculate is invalid data, then according to reality
The either step in return to step 270 to 230 is needed, re-starts radiation value detection.
Step S250：Send the early warning information.
The detection method of electromagnetic radiation provided using the present embodiment, if the capacitance detecting value of detection exceeds touch operation threshold
Value is a lot, i.e. the transmission power of counterpart terminal is larger, and electromagnetic radiation caused by correspondence is more, it is possible to which now user is used
With user distance farther out, such as more than 70cm, this when, user was radiated very by the actual electromagnetic of terminal for hand-free call, i.e. terminal
It is small, so avoiding the need for carrying out radiation early warning again；Conversely.It is also possible to capacitance detecting value and just arrives to touch operation threshold value, but this
When have been detected by the skin that terminal is close to user, it is corresponding then corresponding high-grade radiation early warning can be carried out.Therefore, the above method
The validity of radiation early warning can further be improved.
For in capacitance touch screen it is non-electromagnetic shielding area capacitance not only by terminal self electromagnetism radiation influenceed, also by
The influence of terminal surrounding electromagnetic radiation from environment.The present embodiment additionally provides another terminal detection method of electromagnetic radiation.Fig. 6 is this
The basic procedure schematic diagram for another terminal detection method of electromagnetic radiation that inventive embodiments provide.As shown in fig. 6, this method has
Body comprises the following steps：
Step S310：Obtain the capacitance detecting value of the capacitance touch screen.
Step S320：If the capacitance detected value is less than touch operation threshold value, detect whether the terminal is in
Signal emission state.
If specifically, the capacitance detected value is more than or equal to touch operation threshold value, response touch control operation is performed
Flow；If on the contrary, the capacitance detected value is less than touch operation threshold value, whether detection terminal antenna system is sent out in signal
State is penetrated, if being in emission state, performs step S330, otherwise, performs step S340.
Step S330：If the terminal is in signal emission state, generation is corresponding with capacitance detecting value
Terminal self electromagnetism radiates exceeded early warning information.
If terminal is in signal emission state, illustrate that the electromagnetic radiation of terminal itself causes the change of touch-screen capacitance
Change the main reason for either causing touch-screen capacitance variation, and then perform terminal self electromagnetism and radiate exceeded early warning
Information.
To make user understand present terminal electromagnetic radiation situation, present example additionally provides, according to capacitance detecting value institute
The early warning capacitance section at place, generates corresponding early warning information, for example, early warning section is divided into three sections, is respectively
High, medium and low early warning capacitance section, the section then fallen into according to capacitance detecting value, perform different early warning operations.Work as electric capacity
During low early warning capacitance section residing for detected value, then can be flashed by amber light ＆ display screens remind user suitably away from it is mobile eventually
Hold (yellowness ratings early warning)；When the middle early warning capacitance section residing for capacitance detecting value, then it can pass through blinking red lamp ＆ display screens
Remind customer mobile terminal radiation high, as far as possible away from mobile terminal, can be conversed using earphone (orange grade early warning)；When
During middle early warning capacitance section residing for capacitance detecting value, then it can pass through red light fast blink ＆ motor vibrations ＆ display screens and remind and use
Family mobile phone greatest irradiation is exceeded, it is proposed that goes maintenace point to detect (red scale early warning).
Further, for above-mentioned based reminding method, the present embodiment additionally provides the division methods to early warning capacitance section：Will
The antenna settings of terminal detect capacitance caused by unmasked region in different transmission powers.Also, make the day of terminal
When line is in different default transmission powers, capacitance caused by unmasked region is no more than capacitance touch screen generation and touch behaviour
Make a sound it is seasonable caused by capacitance (touch operation threshold value) and more than by minimum of the terminal handler as useful signal
Capacitance (touch detection threshold value), to set the size in unmasked region in capacitance touch screen.Specific design method can be as follows：
Assuming that the scope of capacitance touch screen detection capacitance is 0~70000.Wherein, capacitance touch screen detection electric capacity is demarcated
The touch detection threshold value (K-TP) of value is 7000, i.e., when touch-screen detects capacitance more than 7000, then to the processing of terminal
Device, which is sent, interrupts wake-up signal, and processor carries out carrying out judgement processing according to the detection capacitance of touch-screen.User touches electric capacity
During touch-screen, for the capacitance of capacitance touch screen detection more than 4000, then it is touch operation threshold value (K-T) to demarcate 4000.
The parameters such as the size in unmasked region are adjusted first, terminal antenna is under maximum transmission power, touch-screen electricity
Hold the capacitance of touch-screen detection between 2000~3000, and test multiple terminal samples, the radiation for demarcating radiation detection is pre-
Alert threshold value (K-R).Terminal antenna is in a certain numerical value (as maximum transmission power subtracts 3dBm) less than maximum transmission power
Under the conditions of, the radiation activation threshold value (K-W) of radiation detection is demarcated, equally, the threshold value is also between 2000~3000, otherwise again
Adjust the structural parameters in unmasked region.Continue to increase transmission power on the basis of above-mentioned maximum transmission power, and use SAR
(Specific Absorption Rate, specific absorption rate) value examination criteria is tested, and when the SAR value of terminal, reaches SAR value
During normal threshold value, the capacitance of detection now capacitance touch screen detection, and the capacitance is demarcated as radiation hazradial bundle threshold value (K-
S), likewise, the threshold value is also between 2000~3000, the structural parameters in unmasked region are otherwise readjusted.Need to illustrate
, the terminal maximum transmission power in the present embodiment refers to the peak power of terminal demarcation.
So, according to above three threshold value, then three early warning capacitance sections can be set, capacitance is more than into radiation triggers
Threshold value (K-W) and less than radiation threshold value of warning (K-R), be set as low early warning capacitance section；Capacitance is more than or equal to radiation
Threshold value of warning (K-R) and when being less than radiation hazradial bundle threshold value (K-S) value, is set as middle early warning capacitance section；Capacitance is more than or
During equal to radiation hazradial bundle threshold value (K-S) value and less than touching, it is set as high early warning capacitance section.
Above-mentioned threshold calibration method, each threshold value of K-W, K-R, K-S and touch operation threshold value (K-T) are left into safe clearance,
Ensure will not false triggering capacitance touch screen, and also leave certain surplus with touch detection threshold value (K-TP), it is ensured that electric capacity
Touch-screen will not be in by surrounding environment metal or other factors influenceed, cause false alarm.
Step S340：If the terminal is not in signal emission state, generation is corresponding with capacitance detecting value
The exceeded early warning information of terminal local environment electromagnetic radiation.
If terminal is not in signal emission state, illustrate that the electromagnetic radiation of terminal local environment causes touch-screen electric capacity
The main reason for change of value either causes touch-screen capacitance variation, and then it is exceeded to perform terminal local environment electromagnetic radiation
Early warning information, to remind user to leave current environment.Further, it is electric to make user understand present terminal local environment
Magnetic radiation situation, also according to the early warning capacitance section residing for capacitance detecting value, corresponding early warning information is generated, it is specific to remind
Method may be referred to step S330, will not be repeated here.
Corresponding to above-mentioned terminal detection method of electromagnetic radiation, the embodiment of the present invention additionally provides a kind of terminal electromagnetic radiation inspection
Survey device.Fig. 7 is a kind of structural representation of terminal electromagnetic radiation detection device provided in an embodiment of the present invention, as shown in fig. 7,
The device 700, its structure may include：At least one processor (processor) 701, internal memory (memory) 702, ancillary equipment
Interface (peripheralinterface) 703, input/output subsystem (I/Osubsystem) 704, power circuit 705 and logical
Believe circuit 706.
In the figure 7, arrow represents to carry out the communication and data transmission between the inscape of computer system, and it can profit
With high-speed serial bus (high-speed serial bus), parallel bus (parallelbus), storage area network (SAN,
Storage Area Network) and/or other appropriate communication technologys and realize.
Internal memory 702 may include operating system 712 and terminal electromagnet radiation detection routine 722.For example, internal memory 702 may include
High-speed random access memory (high-speed random access memory), disk, static RAM
(SPAM), dynamic random access memory (DRAM), read-only storage (ROM), flash memory or non-voltile memory.Internal memory 702 can
Store the program coding 722 for operating system 712 and terminal electromagnetic radiation monitoring, that is to say, that may include the dynamic of device 700
Software module, instruction set architecture or a variety of data outside it needed for making.Now, processor 701 or peripheral interface 706
Access Deng other controllers and internal memory 702 can be controlled by processor 701.
Peripheral interface 703 can be by the input of device 700 and/or output ancillary equipment and processor 701 and internal memory 702
It is combined.Also, input/output subsystem 704 can be by a variety of input/output ancillary equipment and the phase knot of peripheral interface 706
Close.For example, input/output subsystem 704 may include display, printer or be used for camera, various sensings as needed
The controller that the ancillary equipment such as device are combined with peripheral interface 703.According to another side, input/output periphery may not be used yet
It is combined by input/output subsystem 704 with peripheral interface 703.
Power circuit 705 can be to all or part of supply electric power of the circuit element of mobile terminal.For example, power circuit
705 may include such as more than one power supply, charging system, the power failure monitor of electric power management system, battery or exchange (AC)
Circuit (power failuredetection circuit), power converter or inverter, power state marker character are used for
Electric power generation, management, other any circuit elements of distribution.
Communication line 706 can be communicated using at least one interface with other computer systems, such as be moved with others
Terminal is communicated.
Processor 701 can perform Charge Management by implementing the software module being stored in internal memory 702 or instruction set architecture
The multiple functions and processing data of device 700.That is, processor 701 is by performing basic arithmetic, logic and calculating
The input/output calculation of machine system, may be configured as handling the order of computer program.
Fig. 7 embodiment is only an example of terminal electromagnetic radiation detection device 700, device can have following structure or
Configuration：It may include to be used for communication (WiFi, 6G, LTE, Bluetooth, NFC, Zigbee in communication line 706
Deng) RF communication circuit.The circuit element that can be included in device 700 can be by including more than one signal transacting or application
The combination of both hardware, software or the hardware and software of the integrated circuit that program is becomed privileged and realize.
The device 700 of above-mentioned composition, obtain the capacitance detecting value of the capacitance touch screen；If the capacitance detected value
Less than touch operation threshold value, then the early warning information corresponding with capacitance detecting value is generated；Send the early warning
Information.
Based on terminal electromagnetic radiation detection device shown in Fig. 7, the embodiment of the present invention additionally provides a kind of terminal, in the terminal
Including the terminal electromagnetic radiation detection device shown in Fig. 7, in addition to capacitance touch screen, wherein, capacitance touch screen includes feeling
Answer the unmasked region of electromagnetic radiation and the ELECTROMAGNETIC RADIATION SHIELDING region in addition to the unmasked region, terminal electromagnetism spoke
Detection means is penetrated to electrically connect with capacitance touch screen.Meanwhile the terminal device provided in an embodiment of the present invention can perform above-mentioned reality
Example one is applied to the terminal detection method of electromagnetic radiation of embodiment three.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during invention.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein as separation
The unit of part description can be or may not be it is physically separate, can be as the part that unit is shown or
It can not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Border needs to select some or all of module therein to realize the purpose of this embodiment scheme.Those of ordinary skill in the art
Without creative efforts, you can to understand and implement.
It the above is only the embodiment of the present invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
- A kind of 1. terminal detection method of electromagnetic radiation, it is characterised in that applied to the terminal with capacitance touch screen, wherein, institute Stating capacitance touch screen includes being capable of the unmasked region of inductive electromagnetic radiation and the electromagnetism spoke in addition to the unmasked region Penetrate shielding area,Methods described includes：Obtain the capacitance detecting value of the capacitance touch screen；If the capacitance detected value is less than touch operation threshold value, the generation early warning corresponding with the capacitance detecting value carries Show information；Send the early warning information.
- 2. according to the method for claim 1, it is characterised in that when the antenna of the terminal is in default transmission power, institute State caused electric capacity when capacitance caused by unmasked region produces touch operation response no more than the capacitance touch screen Value.
- 3. method according to claim 1 or 2, it is characterised in that when the antenna of the terminal is in default transmission power, Capacitance caused by the unmasked region is no more than caused electricity when the capacitance touch screen produces touch operation response Capacitance and more than by position of minimum capacitance of the terminal handler as useful signal.
- 4. according to the method for claim 1, it is characterised in that if the capacitance detected value is less than touch operation threshold Value, then the early warning information corresponding with capacitance detecting value is generated, including：If the capacitance detected value is less than touch operation threshold value, the distance between the terminal and user are obtained；Calculated according to the distance under the capacitance detected value, the reality of the electromagnetic radiation of the terminal to the user Radiation value；If the actual emanations value exceeds default radiation threshold value, the generation early warning corresponding with actual emanations value Information.
- 5. according to the method for claim 1, it is characterised in that if the capacitance detected value is less than touch operation threshold Value, then the early warning information corresponding with capacitance detecting value is generated, including：If the capacitance detected value is less than touch operation threshold value, detect whether the terminal is in signal emission state；If the terminal is in signal emission state, the generation terminal self electromagnetism spoke corresponding with capacitance detecting value Penetrate exceeded early warning information；If the terminal is not in signal emission state, the generation terminal local environment corresponding with capacitance detecting value The exceeded early warning information of electromagnetic radiation.
- 6. according to the method for claim 1, it is characterised in that if the capacitance detected value is less than touch operation threshold Value, then the early warning information corresponding with capacitance detecting value is generated, including：If the capacitance detected value is more than touch detection threshold value and is less than touch operation threshold value, generation is examined with the electric capacity The corresponding early warning information of measured value.
- 7. according to the method for claim 1, it is characterised in that the generation early warning corresponding with capacitance detecting value Information, including：Early warning capacitance section according to residing for the capacitance detecting value, generates corresponding early warning information,Wherein, the division methods in the early warning capacitance section include：By the antenna settings of the terminal in different transmission powers When, detect capacitance caused by the unmasked region.
- 8. according to the method for claim 1, it is characterised in that the capacitance touch screen includes image display area and Fei Tu As viewing area, wherein：Described image viewing area is provided with the shielding construction for being used for shielding electromagnetic radiation；Part or all of region in the non-image viewing area as be capable of the unmasked region of inductive electromagnetic radiation, except institute State the region outside unmasked region and be provided with the shielding construction for being used for shielding electromagnetic radiation.
- A kind of 9. terminal electromagnetic radiation detection device, it is characterised in that including processor, memory and communication interface, the place Reason device, the memory are connected with the communication interface by communication bus；The communication interface, for obtaining the capacitance detecting value of the capacitance touch screen in the terminal；The memory, for store program codes；The processor, for reading the program code stored in the memory, and perform as any in claim 1 to 8 Method described in.
- 10. a kind of terminal, it is characterised in that including the terminal electromagnetic radiation detection device described in claim 9, in addition to electric capacity Touch-screen, wherein：The capacitance touch screen includes being capable of the unmasked region of inductive electromagnetic radiation and in addition to the unmasked region ELECTROMAGNETIC RADIATION SHIELDING region, the terminal electromagnetic radiation detection device electrically connect with the capacitance touch screen.
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| CN201710693114.2A CN107449973B (en) | 2017-08-14 | 2017-08-14 | terminal electromagnetic radiation detection method and device and terminal |
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| CN201710693114.2A CN107449973B (en) | 2017-08-14 | 2017-08-14 | terminal electromagnetic radiation detection method and device and terminal |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |
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