CN103873101A - Near field communication terminal with power-saving function and power-saving method for near field communication terminal - Google Patents
Near field communication terminal with power-saving function and power-saving method for near field communication terminal Download PDFInfo
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- CN103873101A CN103873101A CN201210547305.5A CN201210547305A CN103873101A CN 103873101 A CN103873101 A CN 103873101A CN 201210547305 A CN201210547305 A CN 201210547305A CN 103873101 A CN103873101 A CN 103873101A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a communication terminal with a power-saving function. The communication terminal comprises an NFC (near field communication) unit, a display driving unit, a display unit, an approach distance sensor and a control unit, wherein the approach distance sensor is used for generating an interrupt signal when detecting that the distance between matched NFC equipment and the communication terminal reaches a threshold value; the control unit is used for starting the NFC unit to execute an NFC function in response to the interrupt signal, and controlling the display driving unit to disable backlight and the display unit. The invention also provides a power-saving method. According to the communication terminal and the power-saving method, the approach distance sensor is used for generating the interrupt signal when detecting that the distance between the matched NFC equipment and the communication terminal reaches the threshold value, and the control unit is used for starting the NFC unit in a power-saving state, and disabling the display unit, so that the technical problems of increase of power consumption of the communication terminal due to the fact that the NFC unit is in a working state all the time and influence of EMI (electro-magnetic interference) on the sensing distance in the prior art are solved.
Description
Technical field
The present invention relates to wireless near field communication terminal, relate in particular to a kind of near field communication (NFC) terminal and electricity saving method thereof with electricity-saving function.
Background technology
NFC(Near Field Communication, close range wireless communication) technology with existing contactless smart card technical compatibility, it has the features such as near distance, bandwidth is high, energy consumption is low.Light between various device, safe, communication rapidly and automatically that NFC can provide, is widely used in the fields such as gate inhibition, public transport, mobile-phone payment.But when NFC terminal is during in mode of operation, its NFC unit in activating emission state, causes extra power consumption, has additionally consumed the electric weight of battery always.And, when display screen, backlight module and the touch-screen of NFC terminal can produce EMI(Electro-Magnetic Interference, electromagnetic interference), affect the distance of reaction of NFC unit.
Summary of the invention
In view of this, be necessary to provide a kind of near field communication (NFC) terminal and electricity saving method thereof with electricity-saving function, to solve the in running order increase communication terminal power consumption always of NFC of the prior art unit and because EMI affects the technical problem of distance of reaction.
The invention provides a kind of communication terminal with electricity-saving function, comprise NFC unit, display driver unit and display unit, this communication terminal also comprises:
Approach range sensor, whether have NFC equipment mate with this communication terminal close in real time detection, and approaching and produce an interrupt signal when being not more than threshold value at NFC equipment and this communication terminal.And
Control unit, starts this NFC unit and carries out NFC function for responding this interrupt signal, and responds this display driver unit of this interrupt signal control and close the backlight to close this display unit of this display unit.
The present invention also provides a kind of electricity saving method that is applied near field communication (NFC) terminal, and wherein, this communication terminal comprises NFC unit and display unit, and the method comprises:
This NFC unit is set in power down mode and to light this display unit that makes backlight of this display unit in running order.
Detect and whether have the NFC equipment mating with this communication terminal distance close and this NFC equipment and this communication terminal whether to reach threshold value.
When detecting that the distance of this NFC equipment and this NFC equipment and this communication terminal starts this NFC unit and closes the backlight to close this display unit of this display unit while reaching threshold value.
Whether this NFC unit judges starting senses this NFC equipment.And
When this NFC unit senses during to this NFC equipment and this NFC equipment carry out transfer of data to complete the execution of corresponding function.
With respect to prior art, communication terminal and the electricity saving method thereof with electricity-saving function provided by the invention, the NFC equipment that senses coupling by approaching range sensor approach and and communication terminal between distance produce interrupt signal while reaching threshold value, and respond this interrupt signal by control unit and start the NFC unit in power down mode and extinguish the backlight to close display unit of display unit, in the time not receiving interrupt signal, keep NFC unit in power down mode and light and keep that display unit is backlight makes display unit work, thereby solve the in running order increase communication terminal power consumption always of NFC of the prior art unit and because EMI affects the technical problem of distance of reaction.
Accompanying drawing explanation
Fig. 1 is the high-level schematic functional block diagram of the communication terminal with electricity-saving function of an embodiment of the present invention.
Fig. 2 is the flow chart that being applied to of an embodiment of the present invention has the electricity saving method of the communication terminal of electricity-saving function.
Main element symbol description
| Communication terminal | 10 |
| Control unit | 11 |
| NFC unit | 12 |
| Approach range sensor | 13 |
| Display driver unit | 14 |
| Display unit | 15 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to Fig. 1, is the high-level schematic functional block diagram of the communication terminal with electricity-saving function of the present invention.This communication terminal 10 comprises control unit 11, NFC unit 12, approaches range sensor 13, display driver unit 14 and display unit 15.In the present embodiment, this communication terminal 10 is a watch structure, realizes specific functions such as payment, and have general wristwatch function for responding to the NFC equipment of a coupling.In other embodiments, this communication terminal 10 is mobile phone, panel computer etc.
This NFC unit 12 with approach range sensor 13 and be all connected with control unit 11, whether this approaches range sensor 13 has the NFC equipment (not shown) of mating with this communication terminal 10 close in real time detection, sensing that NFC equipment approaches with this communication terminal 10 and produce an interrupt signal when being not more than threshold value (being less than or equal to).This control unit 11, for responding this interrupt signal, is controlled this NFC unit 12 of startup and is carried out NFC function, controls display driver unit 14 simultaneously and closes the backlight of this display unit 15, thereby close this display unit 15.Wherein, this threshold value that approaches range sensor 13 can set in advance by software, and according to the receiving sensitivity setting of the transmitting power of NFC equipment and NFC unit 12.
As mentioned above, in the time having the NFC equipment of coupling to approach this communication terminal 10, when this control unit 11 starts this NFC unit 12, close display unit 15, affect NFC unit 12 working sensitivitys thereby reach the EMI that avoids display unit 15 to produce.Now, in running order NFC unit 12 is responded to these NFC equipment and is carried out the execution that is transmitted corresponding function of data.
In the time that this approaches distance that NFC equipment that range sensor 13 do not detect coupling approaches this communication terminal 10 or this NFC equipment and this communication terminal 10 and is greater than this threshold value, this approaches range sensor 13 and produces an enabling signal, these control unit 11 these enabling signals of response are closed this NFC unit 12, do not carry out the execution of NFC sensing function.Meanwhile, this control unit 11 also controls that the backlight of this display unit 15 opened in this display driver unit 14 and in illuminating state, thereby makes the in running order displaying contents of this display unit 15.In the present embodiment, this NFC unit 12 is pre-arranged as power down mode, enters power down mode in the time that this NFC unit 12 is closed.
Refer to Fig. 2, for the present invention is applied to the flow chart of the electricity saving method of the communication terminal with electricity-saving function.
Step S20, start this communication terminal 10, this control unit 11 arranges NFC unit 12 in power down mode, and controls that the backlight of this display unit 15 opened in this display driver unit 14 and in illuminating state, thereby makes the in running order displaying contents of this display unit 15.
Step S21, whether this approaches range sensor 13 and detects and have the NFC equipment mating with this communication terminal 10 close, and whether distance between this NFC equipment and this communication terminal 10 be not more than threshold value, if so, enters step S22, otherwise, return to step S20.
Wherein, this threshold value that approaches range sensor 13 can set in advance by software, and according to the receiving sensitivity setting of the transmitting power of NFC equipment and NFC unit 12.
Step S22, this approaches range sensor 13 and produces interrupt signal, and sends this interrupt signal to control unit 11.These control unit 11 these interrupt signal controls of response start this NFC unit 12, make this NFC unit 12 in running order, and control display driver unit 14 and close the backlight of this display unit 15, thereby close this display unit 15.
Step S23, this NFC unit 12 carries out transfer of data to complete the execution of corresponding function with this NFC equipment, and flow process finishes.
Use the above-mentioned communication terminal with electricity-saving function and electricity saving method thereof, the NFC equipment that senses coupling by approaching range sensor approach and and communication terminal between distance produce interrupt signal while reaching threshold value, and respond this interrupt signal by control unit and start the NFC unit in power down mode and extinguish the backlight to close display unit of display unit, in the time not receiving interrupt signal, keep NFC unit in power down mode and light and keep that display unit is backlight makes display unit work, thereby solve the in running order increase communication terminal power consumption always of NFC of the prior art unit and because EMI affects the technical problem of distance of reaction.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection range that all should belong to the claims in the present invention with distortion.
Claims (7)
1. have a communication terminal for electricity-saving function, comprise NFC unit, display driver unit and display unit, it is characterized in that, described communication terminal also comprises:
Approach range sensor, whether have the NFC equipment mating with described communication terminal close for detection in real time, and produce an interrupt signal in the time detecting that NFC equipment and described communication terminal approach and distance is not more than a threshold value; And
Control unit, starts described NFC unit and carries out NFC function for responding described interrupt signal, and responds display driver unit described in described interrupt signal control and close the backlight to close described display unit of described display unit.
2. the communication terminal with electricity-saving function as claimed in claim 1, is characterized in that, described NFC unit is pre-arranged as power down mode.
3. the communication terminal with electricity-saving function as claimed in claim 2, it is characterized in that, when described approach NFC equipment that range sensor do not detect coupling near or the distance of described NFC equipment and described communication terminal while being greater than described threshold value, produce an enabling signal, described control unit responds described in described enabling signal control NFC unit in power down mode, and controls described display driver unit and light the backlight of described display unit and make described display unit in running order.
4. the communication terminal with electricity-saving function as claimed in claim 1, is characterized in that, the described threshold value that approaches range sensor sets in advance according to the receiving sensitivity of the transmitting power of described NFC equipment and described NFC unit.
5. be applied to an electricity saving method near field communication (NFC) terminal, wherein, described communication terminal comprises NFC unit and display unit, it is characterized in that, described method comprises:
Described NFC unit being set in power down mode and lighting the backlight of described display unit makes described display unit in running order;
Detect and whether have the NFC equipment mating with described communication terminal distance close and described NFC equipment and described communication terminal whether to reach a threshold value;
When detecting that the distance of described NFC equipment and described NFC equipment and described communication terminal starts described NFC unit and closes the backlight to close described display unit of described display unit while reaching threshold value; And
Described NFC unit and described NFC equipment carry out transfer of data to complete the execution of corresponding function.
6. method as claimed in claim 5, is characterized in that, also comprises:
In the time not detecting that the distance of described NFC equipment or described NFC equipment and described communication terminal is greater than threshold value, return carry out described step " arrange described NFC unit in power down mode and light described display unit backlightly make the described display unit in running order ".
7. method as claimed in claim 5, is characterized in that, the described threshold value that approaches range sensor sets in advance according to the receiving sensitivity of the transmitting power of described NFC equipment and described NFC unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210547305.5A CN103873101A (en) | 2012-12-17 | 2012-12-17 | Near field communication terminal with power-saving function and power-saving method for near field communication terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210547305.5A CN103873101A (en) | 2012-12-17 | 2012-12-17 | Near field communication terminal with power-saving function and power-saving method for near field communication terminal |
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| CN103873101A true CN103873101A (en) | 2014-06-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104933852A (en) * | 2015-06-24 | 2015-09-23 | 深圳市城图科技有限公司 | Infrared repeater and infrared repeating system |
| CN105743546A (en) * | 2016-04-26 | 2016-07-06 | 席国栋 | Short range communication method and system |
| CN106022761A (en) * | 2016-05-06 | 2016-10-12 | 北京京东方多媒体科技有限公司 | Mobile payment device and payment method thereof |
| CN106331376A (en) * | 2016-09-30 | 2017-01-11 | 维沃移动通信有限公司 | Power saving method and mobile terminal |
| CN107105390A (en) * | 2017-04-12 | 2017-08-29 | 惠州Tcl移动通信有限公司 | A kind of NFC chip control method and system based on mobile terminal |
| WO2017201679A1 (en) * | 2016-05-25 | 2017-11-30 | 深圳长城开发科技股份有限公司 | Nfc watch |
| CN108498069A (en) * | 2017-02-23 | 2018-09-07 | 光宝电子(广州)有限公司 | Wearable electronic device and its emergency help method |
| WO2022170854A1 (en) * | 2021-02-09 | 2022-08-18 | 华为技术有限公司 | Video call method and related device |
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| WO2022170854A1 (en) * | 2021-02-09 | 2022-08-18 | 华为技术有限公司 | Video call method and related device |
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