CN105813185B - A kind of method and device controlling near-field communication power - Google Patents
A kind of method and device controlling near-field communication power Download PDFInfo
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- CN105813185B CN105813185B CN201410840819.9A CN201410840819A CN105813185B CN 105813185 B CN105813185 B CN 105813185B CN 201410840819 A CN201410840819 A CN 201410840819A CN 105813185 B CN105813185 B CN 105813185B
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Abstract
The invention discloses a kind of methods for controlling near-field communication power, first NFC device determines the first NFC power by the first wireless communication technique and the second NFC device, adjusting parameter is determined according to the first NFC power, using the adjusting parameter by itself NFC power adjustment to the first NFC power；The present invention also discloses a kind of devices for controlling near-field communication power.
Description
Technical field
The present invention relates to near-field communication technology more particularly to a kind of method and devices for controlling near-field communication power.
Background technique
Near-field communication (NFC) is a kind of short-range wireless communication technique, allows to carry out contactless point pair between equipment
Point data transmission, communication distance is generally at 10 centimetres or so.NFC chip can connect security module, carry out the place of sensitive data
Reason, safety verification.However, the communication distance by NFC is limited, carry out having when contactless Point-to-Point Data Transmission between NFC device
Larger limitation, is not convenient to use.
Summary of the invention
To solve existing technical problem, present invention generally provides a kind of methods and dress for controlling near-field communication power
It sets.
The technical scheme of the present invention is realized as follows:
The present invention provides a kind of method for controlling NFC power, this method comprises:
First NFC device determines the first NFC power by the first wireless communication technique and the second NFC device；
First NFC device determines adjusting parameter according to the first NFC power；
First NFC device uses the adjusting parameter by itself NFC power adjustment to the first NFC power.
In above scheme, first NFC device determines first by the first wireless communication technique and the second NFC device
NFC power includes:
First NFC device is wirelessly communicated by establishing than NFC communication apart from remote wireless communication technique and the second NFC device
Connection, and the control information of itself is sent to the second NFC device, it is true according to the control information by second NFC device
The first NFC power adjusted needed for fixed first NFC device；Wherein,
The control information includes: the distance between second NFC device, application scenarios and current NFC power.
In above scheme, first NFC device and the second NFC device store power corresponding with application scenarios and right
The adjusting parameter answered, the adjusting parameter are antenna coil dimensions.
In above scheme, first NFC device determines that adjusting parameter includes: the first NFC according to the first NFC power
Equipment is according to the first NFC power search to corresponding antenna coil dimensions.
In above scheme, first NFC device uses the adjusting parameter by itself NFC power adjustment to described first
NFC power includes: the first NFC device according to the corresponding antenna coil dimensions adjustment antenna of the first NFC power, passes through power amplification
Device will be in NFC signal modulation to antenna adjusted.
In above scheme, this method further include: the first NFC device is by itself NFC power adjustment to the first NFC function
After rate, NFC is established with the second NFC device and is connect.
In above scheme, this method further include: the first NFC device is establishing detection after NFC connect with the second NFC device
The signal quality of NFC connection, if signal quality is lower than preset threshold value, again through the first wireless communication technique and second
NFC device determines the first NFC power, determines adjusting parameter according to the first NFC power, using the adjusting parameter by itself
NFC power adjustment is to the first NFC power.
In above scheme, this method further include: the first NFC device by than NFC communication apart from remote wireless communication technique
The control information for receiving the second NFC device, according to the control information of the second NFC device judgement be the first NFC device adjustment power,
Or the second NFC device adjustment power or two equipment adjust power, when determining that the first NFC device adjusts power, root
Corresponding power is searched according to the application scenarios in the control information of the second NFC device, using the power found as the first NFC function
Rate is for itself adjustment power；When determining that the second NFC device adjusts power, according in the control information of the second NFC device
Application scenarios search corresponding power, are sent to the second NFC device for the power found as the 2nd NFC power；Work as determination
When two equipment adjust power, corresponding power is searched according to the application scenarios in the control information of the second NFC device, will be looked into
The power found adjusts power for itself as the first NFC power, and sends the power found as the 2nd NFC power
To the second NFC device.
The present invention provides a kind of method for controlling near-field communication power, this method further include:
Second NFC device receives the control information of the first NFC device by the first wireless communication technique, according to the control
Information determines the first NFC power；
The first NFC power is sent to the first NFC device by the second NFC device.
In above scheme, the control information includes: the distance between the first NFC device and the second NFC device, applied field
The current NFC power of scape and the first NFC device；
First NFC device and the second NFC device store power corresponding with application scenarios and corresponding adjustment ginseng
Number, the adjusting parameter are antenna coil dimensions.
In above scheme, second NFC device receives the control letter of the first NFC device by the first wireless communication technique
Breath, determines the first NFC power according to the control information, comprising:
Second NFC device is wirelessly communicated by establishing than NFC communication apart from remote wireless communication technique and the first NFC device
Connection, and the control information that the first NFC device is sent is received, it is the first NFC device adjustment function according to control information judgement
Rate, or the second NFC device adjustment power, or two equipment adjust power, when determine the first NFC device adjust power
When, corresponding power is searched according to the application scenarios in the control information, using the power found as the first NFC power；
When determining that the second NFC device adjusts power, corresponding power is searched according to the application scenarios in the control information, will be searched
The power arrived is as the 2nd NFC power for itself adjustment power；When determining that two equipment adjust power, according to the control
Application scenarios in information processed search corresponding power, using the power found as the first NFC power, and the function that will be found
Rate is as the 2nd NFC power for itself adjustment power.
In above scheme, this method further include: when determine the second NFC device adjustment power or two equipment adjust power
When, the second NFC device is according to the 2nd NFC power search to corresponding antenna coil dimensions, according to the antenna coil dimensions tune
Itself whole antenna, will be in NFC signal modulation to antenna adjusted by power amplifier.
In above scheme, this method further include: the second NFC device is by itself NFC power adjustment to the 2nd NFC function
After rate, NFC is established with the first NFC device and is connect.
The present invention provides a kind of first NFC device, the equipment include: first wirelessly establish module, the first power determines mould
Block, the first parameter determination module, the first power regulation module；Wherein,
First wirelessly establishes module, connects for establishing wireless communication by the first wireless communication technique and the second NFC device
It connects；
First power determination module, for determining the first NFC power with the second NFC device；
First parameter determination module, for determining adjusting parameter according to the first NFC power；
First power regulation module, for using the adjusting parameter by NFC power adjustment to the first NFC power.
In above scheme, described first wirelessly establishes module, specifically for by than NFC communication apart from remote wireless communication
Technology and the second NFC device establish wireless communication connection.
In above scheme, the control information includes: the distance between second NFC device, application scenarios and current
NFC power；
First NFC device further include: the first memory module, for storing application scenarios, corresponding with application scenarios
Power and corresponding adjusting parameter, the adjusting parameter are antenna coil dimensions.
In above scheme, first NFC device further include: the first NFC communication module, for by NFC power adjustment
To after the first NFC power, NFC is established with the second NFC device and is connect.
In above scheme, first NFC device further include: the first NFC signal detection module, for establishing NFC company
After connecing, the signal quality of NFC connection is detected, if signal quality is lower than preset threshold value, module is wirelessly established in triggering first.
In above scheme, first power determination module is also used to receive the control information of the second NFC device, according to
The control information judgement is that the first NFC device adjustment power or the second NFC device adjustment power or two equipment are equal
Power is adjusted, when determining that the first NFC device adjusts power, is looked into according to the application scenarios in the control information of the second NFC device
Corresponding power is looked for, is used for itself adjustment power for the power found as the first NFC power；When determining the second NFC device
When adjusting power, corresponding power, the power that will be found are searched according to the application scenarios in the control information of the second NFC device
The second NFC device is sent to as the 2nd NFC power；When determining that two equipment adjust power, according to the second NFC device
The application scenarios controlled in information search corresponding power, are used for itself adjustment for the power found as the first NFC power
Power, and the second NFC device is sent to using the power found as the 2nd NFC power.
The present invention provides a kind of second NFC device, the equipment include: second wirelessly establish module, the second power determines mould
Block, wherein
Second wirelessly establishes module, connects for establishing wireless communication by the first wireless communication technique and the first NFC device
It connects；
Second power determination module determines according to the control information for receiving the control information of the first NFC device
The first NFC power is sent to the first NFC device by one NFC power.
In above scheme, described second wirelessly establishes module, specifically for by than NFC communication apart from remote wireless communication
Technology and the second NFC device establish wireless communication connection.
In above scheme, the control information includes: the distance between second NFC device, application scenarios and current
NFC power；
Second NFC device further include: the second memory module, for storing application scenarios, corresponding with application scenarios
Power and corresponding adjusting parameter, the adjusting parameter are antenna coil dimensions.
In above scheme, second power determination module is specifically used for after receiving control information, is believed according to the control
When ceasing determining first NFC device adjustment power, corresponding power is searched according to the application scenarios in the control information, will be searched
The power arrived is as the first NFC power；When determining that two equipment adjust power according to the control information, according to the control
Application scenarios in information search corresponding power, using the power found as the first NFC power, and the power that will be found
As the 2nd NFC power for itself adjustment power.
In above scheme, second power determination module is also used to determine the second NFC device according to the control information
When adjusting power, corresponding power is searched according to the application scenarios in the control information, using the power found as second
NFC power is for itself adjustment power；
Second NFC device further include:
Second parameter determination module, for determining adjusting parameter according to the 2nd NFC power；
Second power regulation module, for using the adjusting parameter by NFC power adjustment to the 2nd NFC power.
The present invention provides a kind of method and device for controlling near-field communication power, the first NFC device is wireless by first
The communication technology and the second NFC device determine the first NFC power, adjusting parameter are determined according to the first NFC power, using described
Adjusting parameter is by itself NFC power adjustment to the first NFC power；It so, it is possible to make the communication distance of NFC effectively to be adjusted
It is whole, the needs that can satisfy several scenes when contactless Point-to-Point Data Transmission are carried out between NFC device, be no longer limited to away from
From only in 10 centimetres or so of NFC communication.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention is shown from the process of the method for the first NFC device angle realization control near-field communication power
It is intended to；
Fig. 2 is that the embodiment of the present invention is shown from the process of the method for the second NFC device angle realization control near-field communication power
It is intended to；
Fig. 3 is the structural schematic diagram of the first NFC device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the second NFC device provided in an embodiment of the present invention.
Specific embodiment
In the embodiment of the present invention, the first NFC device determines first by the first wireless communication technique and the second NFC device
NFC power determines adjusting parameter according to the first NFC power, using the adjusting parameter by itself NFC power adjustment to institute
State the first NFC power.
Wherein, first NFC device can be main reading terminal, and second NFC device can be by reading terminal.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The embodiment of the present invention realizes a kind of method for controlling near-field communication power, as shown in Figure 1, this method includes following several
A step:
Step 101: the first NFC device determines the first NFC power by the first wireless communication technique and the second NFC device；
Specifically, the first NFC device by bluetooth or it is infrared etc. than NFC communication apart from remote wireless communication technique and second
NFC device establishes wireless communication connection, and the control information of itself is sent to the second NFC device, by second NFC device
The first NFC power adjusted needed for determining the first NFC device according to the control information；Wherein, the control information includes:
The distance between second NFC device, application scenarios and current NFC power；
The distance between described and second NFC device can be determined by the signal strength of detection wireless communication connection；
The application scenarios be it is pre-stored with apart from corresponding scene, such as application scenarios may include: greater than 10 lis
Scene of the rice less than or equal to 50 centimetres, is greater than 100 centimetres less than or equal to 150 at the scene greater than 50 centimetres less than or equal to 100 centimetres
Centimetre scene, be less than or equal to 200 centimetres of scene greater than 150 centimetres；
Such as: when the distance between described and second NFC device is 30 centimetres, the application scenarios are greater than 10 centimetres
Scene less than or equal to 50 centimetres；When the distance between described and second NFC device is 80 centimetres, the application scenarios are big
It is less than or equal to 100 centimetres of scene in 50 centimetres；
The application scenarios can be indicated by mark or dedicated bit；
The current NFC power can be determined according to the intensity of the currently NFC signal of itself；
First NFC device and the second NFC device also store power corresponding with application scenarios and corresponding adjustment
Parameter, the adjusting parameter are antenna coil dimensions；
It is the first NFC according to control information judgement after second NFC device receives control information in this step
Equipment adjustment power or the second NFC device adjustment power or two equipment adjust power, when determining the first NFC device
When adjusting power, corresponding power is searched according to the application scenarios in the control information, using the power found as first
NFC power is sent to the first NFC device；When determining that the second NFC device adjusts power, according to the application in the control information
Scene searches corresponding power, is used for itself adjustment power for the power found as the 2nd NFC power；When determining that two set
When standby adjustment power, search corresponding power according to the application scenarios in the control information, using the power found as
First NFC power is sent to the first NFC device, and is used for itself adjustment power for the power found as the 2nd NFC power；
First NFC device of determination adjustment power may is that when in control information between the second NFC device away from
From the maximum NFC power less than the first NFC device it is attainable with a distance from and control information in the first NFC device it is current
NFC power less than the second NFC device current NFC power when, determine the first NFC device adjust power；
Second NFC device of determination adjustment power may is that when in control information between the second NFC device away from
From the maximum NFC power less than the second NFC device it is attainable with a distance from and control information in the first NFC device it is current
When NFC power is greater than the current NFC power of the second NFC device, determine that the second NFC device adjusts power；
Two equipment of the determination adjust power may is that when control information between the second NFC device away from
From be greater than the first NFC device maximum NFC power institute it is attainable with a distance from and greater than the second NFC device maximum NFC power institute
It is attainable apart from when, determine that two equipment adjust power；
Under normal circumstances, the attainable distance of maximum NFC power institute of NFC device is 100 centimetres or so.
Step 102: adjusting parameter is determined according to the first NFC power；
Specifically, the first NFC device is according to the first NFC power search to corresponding antenna coil dimensions.
Step 103: using the adjusting parameter by itself NFC power adjustment to the first NFC power；
Specifically, the first NFC device adjusts antenna according to the corresponding antenna coil dimensions of the first NFC power, pass through power
For amplifier by NFC signal modulation to antenna adjusted, the power of the NFC signal of antenna transmitting at this time is up to the first NFC
Power.
This method further include: the first NFC device is after by itself NFC power adjustment to the first NFC power, with second
NFC device establishes NFC connection；
In addition, the first NFC device is established after NFC connect with the second NFC device, the signal quality of NFC connection is detected, such as
Fruit signal quality is lower than preset threshold value, determines the first NFC function again through the first wireless communication technique and the second NFC device
Rate determines adjusting parameter according to the first NFC power, using the adjusting parameter by itself NFC power adjustment to described
One NFC power.That is, above-mentioned step 101~103 can repeat, until the signal quality of NFC connection is higher than in advance
If threshold value until.
The above method further include: the first NFC device by bluetooth or it is infrared etc. than NFC communication apart from remote wireless communication skill
Art receives the control information of the second NFC device, is that the first NFC device adjusts power or the according to control information judgement
Two NFC devices adjustment power or two equipment adjust power, when determining that the first NFC device adjusts power, according to second
Application scenarios in the control information of NFC device search corresponding power, are used for the power found as the first NFC power
Itself adjustment power；When determining that the second NFC device adjusts power, according to the applied field in the control information of the second NFC device
Scape searches corresponding power, is sent to the second NFC device for the power found as the 2nd NFC power；When determining that two set
When standby adjustment power, corresponding power is searched according to the application scenarios in the control information of the second NFC device, by what is found
Power adjusts power for itself as the first NFC power, and is sent to second for the power found as the 2nd NFC power
NFC device；
First NFC device of determination adjustment power may is that when in control information between the first NFC device away from
From the maximum NFC power less than the first NFC device it is attainable with a distance from and control information in the second NFC device it is current
When NFC power is greater than the current NFC power of the first NFC device, determine that the first NFC device adjusts power；
Second NFC device of determination adjustment power may is that when in control information between the first NFC device away from
From the maximum NFC power less than the second NFC device it is attainable with a distance from and control information in the second NFC device it is current
NFC power less than the first NFC device current NFC power when, determine the second NFC device adjust power；
Two equipment of the determination adjust power may is that when control information between the first NFC device away from
From be greater than the first NFC device maximum NFC power institute it is attainable with a distance from and greater than the second NFC device maximum NFC power institute
It is attainable apart from when, determine that two equipment adjust power.
Wherein, the maximum NFC power of above-mentioned first NFC device attainable distance, the second NFC device maximum NFC
The attainable distance of power institute is stored in advance in the first NFC device and the second NFC device, is called when needed.
Based on the above method, the present invention also provides a kind of methods for controlling near-field communication power, as shown in Fig. 2, this method
Including the following steps:
Step 201: the second NFC device receives the control information of the first NFC device by the first wireless communication technique, according to
The control information determines the first NFC power；
Wherein, the second NFC device by bluetooth or it is infrared etc. than NFC communication apart from remote wireless communication technique and first
NFC device establishes wireless communication connection, and receives the control information that the first NFC device is sent, and is determined according to the control information
The first NFC power adjusted needed for first NFC device；Wherein, the control information includes: the first NFC device and the 2nd NFC
The current NFC power of the distance between equipment, application scenarios and the first NFC device；The application scenarios be it is pre-stored with
It may include: greater than 10 centimetres less than or equal to 50 centimetres of scene, greater than 50 centimetres small apart from corresponding scene, such as application scenarios
In the scene equal to 100 centimetres, the scene greater than 100 centimetres less than or equal to 150 centimetres, it is greater than 150 centimetres less than or equal to 200 lis
The scene of rice；
First NFC device and the second NFC device also store power corresponding with application scenarios and corresponding adjustment
Parameter, the adjusting parameter are antenna coil dimensions；
It is the first NFC according to control information judgement after second NFC device receives control information in this step
Equipment adjustment power or the second NFC device adjustment power or two equipment adjust power, when determining the first NFC device
When adjusting power, corresponding power is searched according to the application scenarios in the control information, using the power found as first
NFC power；When determining that the second NFC device adjusts power, corresponding function is searched according to the application scenarios in the control information
The power found is used for itself adjustment power by rate；When determining that two equipment adjust power,
Corresponding power is searched according to the application scenarios in the control information, using the power found as the first NFC power, and will
The power found is as the 2nd NFC power for itself adjustment power；
The first NFC device of determination adjustment power may is that when the first NFC device and the 2nd NFC in control information
The distance between equipment less than the first NFC device maximum NFC power attainable distance and control information in first
The current NFC power of NFC device less than the second NFC device current NFC power when, determine the first NFC device adjust power；
The second NFC device of determination adjustment power may is that when the first NFC device and the 2nd NFC in control information
The distance between equipment less than the second NFC device maximum NFC power attainable distance and control information in first
When the current NFC power of NFC device is greater than the current NFC power of the second NFC device, determine that the second NFC device adjusts power；
Two equipment of the determination adjust power may is that when control information between the second NFC device away from
From be greater than the first NFC device maximum NFC power institute it is attainable with a distance from and greater than the second NFC device maximum NFC power institute
It is attainable apart from when, determine that two equipment adjust power；
Under normal circumstances, the attainable distance of maximum NFC power institute of NFC device is 100 centimetres or so.
The maximum NFC power of above-mentioned first NFC device attainable distance, the second NFC device maximum NFC power institute
Attainable distance is stored in advance in the first NFC device and the second NFC device, is called when needed.
Step 202: the first NFC power is sent to the first NFC device by the second NFC device；
This method further include: when determining that the second NFC device adjustment power or two equipment adjust power, the 2nd NFC
Equipment adjusts the day of itself according to the antenna coil dimensions according to the 2nd NFC power search to corresponding antenna coil dimensions
Line, by power amplifier by NFC signal modulation to antenna adjusted, the power of the NFC signal of antenna transmitting at this time will
Reach the 2nd NFC power.
This method further include: the second NFC device is after by itself NFC power adjustment to the 2nd NFC power, with first
NFC device establishes NFC connection.
In order to realize the above method, the present invention also provides a kind of first NFC device, as shown in figure 3, the equipment includes: the
One wirelessly establishes module 31, the first power determination module 32, the first parameter determination module 33, the first power regulation module 34；Its
In,
First wirelessly establishes module 31, wirelessly communicates for being established by the first wireless communication technique and the second NFC device
Connection；
First power determination module 32, for determining the first NFC power with the second NFC device；
First parameter determination module 33, for determining adjusting parameter according to the first NFC power；
First power regulation module 34, for using the adjusting parameter by NFC power adjustment to the first NFC function
Rate；
First wirelessly establishes module 31, specifically for by bluetooth or it is infrared etc. than NFC communication apart from remote wireless communication
Technology and the second NFC device establish wireless communication connection；
First power determination module 32 is received specifically for the control information of itself is sent to the second NFC device
The first NFC power that second NFC device is determined according to the control information；Wherein, the control information includes: and second
The distance between NFC device, application scenarios and current NFC power；The application scenarios be it is pre-stored with apart from corresponding
Scene, as application scenarios may include: the scene for being less than or equal to 50 centimetres greater than 10 centimetres, be greater than 50 centimetres less than or equal to 100
Centimetre scene, the scene greater than 100 centimetres less than or equal to 150 centimetres, be less than or equal to 200 centimetres of scene greater than 150 centimetres；
The application scenarios can be indicated by mark or dedicated bit；
The current NFC power can be determined according to the intensity of the currently NFC signal of itself；
First NFC device further include: the first memory module 35, for storing application scenarios, corresponding with application scenarios
Power and corresponding adjusting parameter, the adjusting parameter be antenna coil dimensions；
First parameter determination module 33 is specifically used for according to the first NFC power search to corresponding antenna line
Enclose size；
First power regulation module 34 is specifically used for being adjusted according to the corresponding antenna coil dimensions of the first NFC power
Antenna, will be in NFC signal modulation to antenna adjusted by power amplifier；
First NFC device further include: the first NFC communication module 36, for by NFC power adjustment to described first
After NFC power, NFC is established with the second NFC device and is connect；
First NFC device further include: the first NFC signal detection module 37, for detecting after establishing NFC connection
The signal quality of NFC connection, if signal quality is lower than preset threshold value, module 31 is wirelessly established in triggering first；
First power determination module 32 is also used to receive the control information of the second NFC device, is believed according to the control
Breath judgement is that the first NFC device adjustment power or the second NFC device adjustment power or two equipment adjust power, when
When determining that the first NFC device adjusts power, corresponding function is searched according to the application scenarios in the control information of the second NFC device
The power found is used for itself adjustment power by rate；When determining that the second NFC device adjusts power,
Corresponding power is searched according to the application scenarios in the control information of the second NFC device, using the power found as the 2nd NFC
Power is sent to the second NFC device；When determining that two equipment adjust power, according in the control information of the second NFC device
Application scenarios search corresponding power, be used for itself adjustment power for the power found as the first NFC power, and will look into
The power found is sent to the second NFC device as the 2nd NFC power.
The present invention also provides a kind of second NFC device, as shown in figure 4, the equipment include: second wirelessly establish module 41,
Second power determination module 42, wherein
Second wirelessly establishes module 41, wirelessly communicates for being established by the first wireless communication technique and the first NFC device
Connection；Here, described second wirelessly establish module 41 by bluetooth or it is infrared etc. than NFC communication apart from remote wireless communication technique
Wireless communication connection is established with the second NFC device；
Second power determination module 42 is determined for receiving the control information of the first NFC device according to the control information
The first NFC power is sent to the first NFC device by the first NFC power；
Second power determination module 42 is specifically used for after receiving control information, determines the according to the control information
When one NFC device adjusts power, corresponding power, the power that will be found are searched according to the application scenarios in the control information
As the first NFC power；When determining that two equipment adjust power according to the control information, according in the control information
Application scenarios search corresponding power, using the power found as the first NFC power, and using the power found as second
NFC power is for itself adjustment power；
Correspondingly, second NFC device further include: the second memory module 43, for storing application scenarios and applied field
The corresponding power of scape and corresponding adjusting parameter, the adjusting parameter are antenna coil dimensions；
Second power determination module 42 is also used to determine that the second NFC device adjusts power according to the control information
When, corresponding power is searched according to the application scenarios in the control information, is used the power found as the 2nd NFC power
Power is adjusted in itself；
Second NFC device further include:
Second parameter determination module 44, for determining adjusting parameter according to the 2nd NFC power；
Second power regulation module 45, for using the adjusting parameter by NFC power adjustment to the 2nd NFC function
Rate；
Second NFC device further include: the second NFC communication module 46, for by NFC power adjustment to described second
After NFC power, NFC is established with the first NFC device and is connect.
Second NFC device further include: the 2nd NFC signal detection module 47, for detecting after establishing NFC connection
The signal quality of NFC connection, if signal quality is lower than preset threshold value, module 41 is wirelessly established in triggering second.
In conclusion the embodiment of the present invention can be such that the communication distance of NFC is effectively adjusted, carried out between NFC device
The needs that can satisfy several scenes when contactless Point-to-Point Data Transmission are no longer limited to distance only at 10 centimetres or so
NFC communication.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention, should be included in protection of the invention
Within the scope of.
Claims (22)
1. a kind of method for controlling near-field communication (NFC) power, which is characterized in that this method comprises:
First NFC device determines the first NFC by first wireless communication technique and second NFC device remoter than NFC communication distance
Power；
First NFC device determines adjusting parameter according to the first NFC power；
First NFC device uses the adjusting parameter by itself NFC power adjustment to the first NFC power.
2. the method according to claim 1, wherein first NFC device pass through it is remoter than NFC communication distance
First wireless communication technique determines that the first NFC power includes: with the second NFC device
First NFC device is connected by establishing wireless communication apart from remote wireless communication technique and the second NFC device than NFC communication
It connects, and the control information of itself is sent to the second NFC device, determined by second NFC device according to the control information
The first NFC power adjusted needed for first NFC device；Wherein,
The control information includes: the distance between second NFC device, application scenarios and current NFC power.
3. according to the method described in claim 2, it is characterized in that, first NFC device and the second NFC device are stored and are answered
With the corresponding power of scene and corresponding adjusting parameter, the adjusting parameter is antenna coil dimensions.
4. according to the method described in claim 3, it is characterized in that, first NFC device is true according to the first NFC power
Determining adjusting parameter includes: the first NFC device according to the first NFC power search to corresponding antenna coil dimensions.
5. according to the method described in claim 4, it is characterized in that, first NFC device will be certainly using the adjusting parameter
Body NFC power adjustment to the first NFC power include: the first NFC device according to the corresponding aerial coil ruler of the first NFC power
Very little adjustment antenna, will be in NFC signal modulation to antenna adjusted by power amplifier.
6. the method according to claim 1, wherein this method further include: the first NFC device is by itself NFC
After power adjustment to the first NFC power, NFC is established with the second NFC device and is connect.
7. according to the method described in claim 6, it is characterized in that, this method further include: the first NFC device with the 2nd NFC
After equipment establishes NFC connection, the signal quality of NFC connection is detected, if signal quality is lower than preset threshold value, again through
First wireless communication technique and the second NFC device determine the first NFC power, determine adjusting parameter according to the first NFC power,
Using the adjusting parameter by itself NFC power adjustment to the first NFC power.
8. according to the method described in claim 3, it is characterized in that, this method further include: the first NFC device passes through more logical than NFC
The remote wireless communication technique of communication distance receives the control information of the second NFC device, is judged according to the control information of the second NFC device
It is that the first NFC device adjustment power or the second NFC device adjustment power or two equipment adjust power, when determining the
When one NFC device adjusts power, corresponding power is searched according to the application scenarios in the control information of the second NFC device, will be looked into
The power found is as the first NFC power for itself adjustment power；When determining that the second NFC device adjusts power, according to the
Application scenarios in the control information of two NFC devices search corresponding power, send out the power found as the 2nd NFC power
Give the second NFC device；When determining that two equipment adjust power, according to the application in the control information of the second NFC device
Scene searches corresponding power, be used for itself adjustment power using the power found as the first NFC power, and will find
Power is sent to the second NFC device as the 2nd NFC power.
9. a kind of method for controlling near-field communication power, which is characterized in that this method further include:
Second NFC device is believed by the control that the first wireless communication technique remoter than NFC communication distance receives the first NFC device
Breath, determines the first NFC power according to the control information；
The first NFC power is sent to the first NFC device by the second NFC device.
10. according to the method described in claim 9, it is characterized in that, the control information includes: the first NFC device and second
The current NFC power of the distance between NFC device, application scenarios and the first NFC device；
First NFC device and the second NFC device store power corresponding with application scenarios and corresponding adjusting parameter, institute
Stating adjusting parameter is antenna coil dimensions.
11. according to the method described in claim 10, it is characterized in that, second NFC device passes through the first wireless communication skill
Art receives the control information of the first NFC device, determines the first NFC power according to the control information, comprising:
Second NFC device is connected by establishing wireless communication apart from remote wireless communication technique and the first NFC device than NFC communication
Connect, and receive the first NFC device send control information, according to the control information judgement be the first NFC device adjust power,
Or the second NFC device adjustment power or two equipment adjust power, when determining that the first NFC device adjusts power, root
Corresponding power is searched according to the application scenarios in the control information, using the power found as the first NFC power；Work as determination
When second NFC device adjusts power, corresponding power, the function that will be found are searched according to the application scenarios in the control information
Rate is as the 2nd NFC power for itself adjustment power；When determining that two equipment adjust power, according to the control information
In application scenarios search corresponding power, using the power found as the first NFC power, and using the power found as
2nd NFC power is for itself adjustment power.
12. according to the method for claim 11, which is characterized in that this method further include: when determine the second NFC device adjust
When power or two equipment adjust power, the second NFC device is according to the 2nd NFC power search to corresponding aerial coil ruler
It is very little, the antenna of itself is adjusted according to the antenna coil dimensions, by power amplifier by NFC signal modulation to day adjusted
On line.
13. according to the method for claim 12, which is characterized in that this method further include: the second NFC device by itself
After NFC power adjustment to the 2nd NFC power, NFC is established with the first NFC device and is connect.
14. a kind of first NFC device, which is characterized in that the equipment include: first wirelessly establish module, the first power determines mould
Block, the first parameter determination module, the first power regulation module；Wherein,
First wirelessly establishes module, for being built by first wireless communication technique remoter than NFC communication distance with the second NFC device
Vertical wireless communication connection；
First power determination module, for determining the first NFC power with the second NFC device；
First parameter determination module, for determining adjusting parameter according to the first NFC power；
First power regulation module, for using the adjusting parameter by NFC power adjustment to the first NFC power.
15. equipment according to claim 14, which is characterized in that
First wirelessly establishes module, specifically for by building than NFC communication apart from remote wireless communication technique and the second NFC device
Vertical wireless communication connection, and the control information of itself is sent to the second NFC device, as second NFC device according to
Control information determines the first NFC power adjusted needed for the first NFC device；Wherein, the control information includes: and second
The distance between NFC device, application scenarios and current NFC power；
First NFC device further include: the first memory module, for storing application scenarios, power corresponding with application scenarios
And corresponding adjusting parameter, the adjusting parameter are antenna coil dimensions.
16. equipment according to claim 15, which is characterized in that first NFC device further include: the first NFC communication
Module, for establishing NFC with the second NFC device and connecting after by NFC power adjustment to the first NFC power.
17. equipment according to claim 16, which is characterized in that first NFC device further include: the first NFC signal
Detection module, for detecting the signal quality of NFC connection after establishing NFC connection, if signal quality is lower than preset thresholding
Module is wirelessly established in value, triggering first.
18. equipment according to claim 15, which is characterized in that first power determination module is also used to receive
The control information of two NFC devices is the first NFC device adjustment power or the second NFC device according to control information judgement
Adjustment power or two equipment adjust power, when determining that the first NFC device adjusts power, according to the second NFC device
The application scenarios controlled in information search corresponding power, are used for itself adjustment for the power found as the first NFC power
Power；When determining that the second NFC device adjusts power, according to the application scenarios lookup pair in the control information of the second NFC device
The power found is sent to the second NFC device by the power answered；When determining that two equipment adjust
When power, search corresponding power according to the application scenarios in the control information of the second NFC device, using the power found as
First NFC power is sent to the second NFC device for the power found as the 2nd NFC power for itself adjustment power.
19. a kind of second NFC device, which is characterized in that the equipment include: second wirelessly establish module, the second power determines mould
Block, wherein
Second wirelessly establishes module, for being built by first wireless communication technique remoter than NFC communication distance with the first NFC device
Vertical wireless communication connection；
Second power determination module determines first according to the control information for receiving the control information of the first NFC device
The first NFC power is sent to the first NFC device by NFC power.
20. equipment according to claim 19, which is characterized in that the control information includes: between the second NFC device
Distance, application scenarios and current NFC power；
Second NFC device further include: the second memory module, for storing application scenarios, power corresponding with application scenarios
And corresponding adjusting parameter, the adjusting parameter are antenna coil dimensions.
21. equipment according to claim 20, which is characterized in that second power determination module is specifically used for receiving
After controlling information, when determining that the first NFC device adjusts power according to the control information, according to the application in the control information
Scene searches corresponding power, using the power found as the first NFC power；Two equipment are determined according to the control information
Adjustment power when, corresponding power is searched according to the application scenarios in the control information, using the power found as the
One NFC power, and itself adjustment power is used for using the power found as the 2nd NFC power.
22. equipment according to claim 21, which is characterized in that second power determination module is also used to according to institute
When stating control information and determining that the second NFC device adjusts power, corresponding function is searched according to the application scenarios in the control information
The power found is used for itself adjustment power by rate；
Second NFC device further include:
Second parameter determination module, for determining adjusting parameter according to the 2nd NFC power；
Second power regulation module, for using the adjusting parameter by NFC power adjustment to the 2nd NFC power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410840819.9A CN105813185B (en) | 2014-12-30 | 2014-12-30 | A kind of method and device controlling near-field communication power |
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| FR3077942A1 (en) | 2018-02-15 | 2019-08-16 | Stmicroelectronics (Rousset) Sas | NFC CONTROLLER |
| CN110121207A (en) * | 2019-05-28 | 2019-08-13 | 广东美的制冷设备有限公司 | Output power method of adjustment, device and its relevant device of wireless communication device |
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| CN103874164B (en) * | 2014-02-28 | 2017-06-06 | 上海升途智能系统有限公司 | Method, system and the mobile terminal device of WIFI are connected by NFC |
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