CN109495888A - Certification connection mechanism method based on wireless signal strength - Google Patents
Certification connection mechanism method based on wireless signal strength Download PDFInfo
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- CN109495888A CN109495888A CN201811476129.4A CN201811476129A CN109495888A CN 109495888 A CN109495888 A CN 109495888A CN 201811476129 A CN201811476129 A CN 201811476129A CN 109495888 A CN109495888 A CN 109495888A
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- wireless terminal
- wireless
- transmitting device
- signal strength
- radio transmitting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- Computer Networks & Wireless Communication (AREA)
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- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The certification connection mechanism method based on wireless signal strength that the invention discloses a kind of, including radio transmitting device and wireless terminal, include the following steps: that 1) radio transmitting device powers on for the first time, obtains the information of contemporary wireless terminals;2) contemporary wireless terminals wireless chip type is determined, and whether with power amplifier, if so, 4 are gone to step, if it is not, then going to step 3;3) default threshold of the radio transmitting device inquiry respective wireless terminal chip type, and save, go to step 5;4) radio transmitting device inquires default setting threshold values of the respective wireless terminal chip with power amplifier type, saves data, into next step;5) default threshold of preservation is modified to threshold determination position.The invention reside in providing, a kind of certification connection is succinct, authenticates good connecting effect, high safety, a kind of high certification connection mechanism method based on wireless signal strength of user experience.
Description
Technical field
The invention belongs to fields of communication technology, and in particular to a kind of certification connection mechanism side based on wireless signal strength
Method.
Background technique
Currently, generally by encryption, not encrypting certification and mono- key authenticating party of WPS to network equipment authentication management
Formula.Certification is not encrypted, it is open to the equipment of not face, there are serious safety issue, and commonly used encryption authenticating party
Formula, and there is setting, and connect the deficiencies of cumbersome.In practical applications, a kind of authentication mode that intelligence is succinct is needed to expire
The certification demand of sufficient wireless device.
Chinese Patent Application No. are as follows: 201510015992.X, the applying date are: on 01 13rd, 2015, publication date was: 2015
Years 22 days 04 month, patent name are as follows: a kind of authentication method based on wireless signal strength, the disclosure of the invention are a kind of based on wireless
Whether the authentication method of signal strength judges this wireless signal strength by reading the wireless signal strength of Wireless Communication Equipment
A threshold values for reaching setting, reaches this threshold values and then authenticates this equipment, not up to this threshold values, then continues to read and judge wireless communication
Number intensity, furthermore, it is possible to according to different wireless device modification threshold values, it can be more flexible and convenient.The invention skill
Art scheme can with the open network mechanism of no key, the open network mechanism without key cooperation mobile communication equipment short message test
Card mechanism, wired equivalent privacy (WEP) authentication mechanism for encrypting, WPA authentication mechanism for encrypting, WPA2 authentication mechanism for encrypting and Wi-Fi
Protection setting (WPS) authentication mechanism for encrypting combines, as the effective measures for further enhancing safety.
Above patent document discloses a kind of authentication method based on wireless signal strength, but authentication method connection is numerous
Trivial, certification connection effect is bad, and certification safety is not close, is not able to satisfy the demand of market development.
Summary of the invention
It is succinct that the present invention provides a kind of certification connection in view of the drawbacks of the prior art, authenticates good connecting effect, high safety,
A kind of high certification connection mechanism method based on wireless signal strength of user experience.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of certification connection mechanism method based on wireless signal strength, including radio transmitting device and wireless terminal, institute
Stating radio transmitting device includes corresponding signal strength threshold values database, and the signal strength threshold values is for sentencing wireless terminal type
Disconnected and wireless terminal signals state of strength detects, and is equipped in the radio transmitting device and determines wireless signal Initial Hurdle, should
Radio transmitting device includes the following steps: wireless terminal certification connection
Step 1): the radio transmitting device powers on for the first time, obtains the information of contemporary wireless terminals;
Step 2): contemporary wireless terminals wireless chip type is determined, and whether with power amplifier, if so, turning
Step 4, if it is not, then going to step 3;
Step 3): the default threshold of the radio transmitting device inquiry respective wireless terminal chip type, and save, turn step
Rapid 5;
Step 4): the radio transmitting device inquires default setting of the respective wireless terminal chip with power amplifier type
Threshold values saves data, into next step;
Step 5): the default threshold of preservation is modified to threshold determination position.
Being equipped in the radio transmitting device to the judgement of wireless signal Initial Hurdle includes at the beginning of wireless terminal type set
The judgement of beginning threshold values, includes the following steps:
Step 1): extracting the physical address of current connection devices from network message, into next step;
Step 2): according to the composition form of physical address, judging whether wireless terminal type meets wireless terminal Class1,
If it is, 4 are gone to step, if it is not, then entering in next step;
Step 3): according to the composition form of physical address, judging whether wireless terminal type meets wireless terminal type 2,
If it is, entering in next step, if it is not, then going to step 5;
Step 4): it in conjunction with local wireless terminal type, is inquired in the database of the radio transmitting device corresponding initial
Threshold values returns to corresponding Initial Hurdle certification connection if inquiring respective thresholds;
Step 5): when in the database of the radio transmitting device be not present respective wireless terminal type Initial Hurdle,
The Initial Hurdle of local wireless terminal type is then obtained, default threshold certification connection is carried out.
The radio transmitting device further includes the radio transmitting device monitoring wireless terminal to wireless terminal certification connection
Data message carries out certification connection by handling message, and steps are as follows for this:
Step 1): program initialization, the message identifying solicited message of monitoring wireless terminal;
Step 2): if message belongs to the message being again coupled to after certification, 4 are gone to step;Otherwise enter in next step;
Step 3): judging message whether in authentication list, is to go to step 8, otherwise terminates this process;
Step 4): judge whether it is otherwise the message that request authenticates terminates this process if it is entering in next step;
Step 5): the device signal intensity of contemporary wireless terminals is detected, wireless terminal is taken from message
Address in physical address, with the database of radio transmitting device compares, and judges wireless terminal type, in conjunction with current nothing
Line transmitting device type obtains the signal strength threshold values of contemporary wireless terminals type, into next step;
Step 6): the signal strength indication and threshold values that current radio transmission device is connect with wireless terminal compare, if
Signal strength indication is greater than current type preset threshold, then goes to step 8, otherwise enters in next step;
Step 7): being added to authentication list for wireless terminal, to make to determine to use next time, then enters in next step;
Step 8): wireless terminal and radio transmitting device is allowed to authenticate connection.
The step 5) carries out detection to the device signal intensity of contemporary wireless terminals
If it find that this value of current signal strength data and the fluctuation of a preceding signal strength data value are excessive, then
Value next time is carried out, and loses undulating value.Finally, removing the more apparent value of fluctuation, average.
The undulating value of losing includes removing the more apparent signal strength data value of fluctuation, asks signal strength data average
Value.
The radio transmitting device includes wireless WIFI device bluetooth transmission means either infrared transmission dress
It sets.
The wireless terminal includes mobile phone either tablet computer.
The beneficial effects of the present invention are: 1) authentication mechanism of the present invention is judged based on the wireless signal of monitoring environment
What whether the distance between equipment was closely authenticated enough, wireless signal strength changes with environmental change and equipment movement,
But the variation of this value in a certain range, which has, centainly to be fluctuated, and multiple value is needed, and after losing the biggish value of undulating value, is taken
Average value;The present invention is based on the connection types of existing wireless terminal, do not need replacement terminal equipment.
2) currently, wireless terminal type is more in the market, to the wireless signal strength of different types of wireless terminal type
Certain difference is had, in this regard, type decision of the present invention in verification process through physical address takes different threshold values, default
Configuration can be used, and user does not need input password yet, and certification connection is simple and convenient.
3) highly-safe the present invention is based on the certification of the signal strength of adjustable threshold values.
Detailed description of the invention
Fig. 1 is the certification connection mechanism method flow diagram of the present invention based on wireless signal strength;
Fig. 2 is the Initial Hurdle determination method stream of the certification connection mechanism method of the present invention based on wireless signal strength
Cheng Tu;
Fig. 3 is the message authentication connection method stream of the certification connection mechanism method of the present invention based on wireless signal strength
Cheng Tu.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, following embodiment be it is descriptive, be not
Limited, this does not limit the scope of protection of the present invention.
Embodiment 1
It is the signal by wireless end devices when wireless terminal device connection radio transmitting device of the present invention
Intensity goes to determine whether to authenticate by connection.It include corresponding signal strength threshold values database in the radio transmitting device,
Type judgement and signal strength state detection processes.
Company of the radio transmitting device of the present invention without carrying out complicated network security certification setting and wireless terminal
The person of connecing does not need to carry out complicated identifying procedure yet.
Combining wireless signal strength of the present invention, according to the variation of environment, such as: distance increases and declining across obstacle
The features such as subtract, the condition of certification ensure that the safety of the connection control of controlled range to a certain extent, and visualization is controllable
Regulating system.
In certification connection process of the present invention based on signal strength, radio transmitting device itself has an initial valve
The judgement of value, different radio terminal type, the signal strength issued has certain difference, and initialization program can be wireless whole
Wireless terminal is initialized when holding initial.
Radio transmitting device of the present invention includes wireless WIFI device bluetooth transmission means either infrared ray
Transmitting device.
Wireless terminal of the present invention includes mobile phone either tablet computer.
As shown in Figure 1, should certification connection mechanism method based on wireless signal strength, including radio transmitting device and wireless
Terminal, the radio transmitting device include corresponding signal strength threshold values database, which was used for wireless end
Type judgement and the detection of wireless terminal signals state of strength are held, is equipped in the radio transmitting device to wireless signal Initial Hurdle
Determine, which includes the following steps: wireless terminal certification connection
Step 1): start S1;
Step 2): the radio transmitting device powers on for the first time, obtains S2 in the information of contemporary wireless terminals;
Step 3): determining contemporary wireless terminals wireless chip type, and whether with power amplifier S3, if so,
5 are gone to step, if it is not, then going to step 4;
Step 4): the default threshold of the radio transmitting device inquiry respective wireless terminal chip type, and S311 is saved,
Into in next step;
Step 5): the radio transmitting device inquires default setting of the respective wireless terminal chip with power amplifier type
Threshold values saves data, into next step S4;
Step 6): the default threshold of preservation is modified to threshold determination position S5;
Step 7): terminate S6.
Embodiment 2
Referring to Fig. 2, the difference is that, it is equipped in the radio transmitting device at the beginning of wireless signal with above-described embodiment
Beginning threshold values determines to include the judgement to wireless terminal type set Initial Hurdle, includes the following steps:
Step 1) starts S21;
Step 2): extracting the physical address S22 of current connection devices from network message, into next step;
Step 3): according to the composition form of physical address, judge whether wireless terminal type meets wireless terminal type
1S23, if it is, 5 are gone to step, if it is not, then entering in next step;
Step 4): according to the composition form of physical address, judge whether wireless terminal type meets wireless terminal type
2S24, if it is, entering in next step, if it is not, then going to step 6;
Step 5): it in conjunction with local wireless terminal type, is inquired in the database of the radio transmitting device corresponding initial
Threshold values returns to corresponding Initial Hurdle certification connection S25 if inquiring respective thresholds;
Step 6): when in the database of the radio transmitting device be not present respective wireless terminal type Initial Hurdle,
The Initial Hurdle of local wireless terminal type is then obtained, default threshold certification connection S241 is carried out;
Step 7) terminates S26.
In the present embodiment, the wireless terminal Class1, wireless terminal type 2 is used for the purpose of facilitating understanding, actual wireless
Terminal type will write database with reference to the main flow terminal of market.
Embodiment 3
Referring to Fig. 3, with above-described embodiment the difference is that, the radio transmitting device to wireless terminal authenticate connect
Further include the radio transmitting device monitoring wireless terminal data message, carries out certification connection by handling message, the step is such as
Under:
Step 1) starts S31;
Step 2): program initialization, the message identifying solicited message S32 of monitoring wireless terminal;
Step 3): if message belongs to the message being again coupled to after certification, 4 are gone to step;Otherwise, into next step S33;
Step 4): judge message whether in authentication list S331, be to go to step 8, otherwise terminate this process;
Step 5): judge whether it is otherwise the message S34 that request authenticates terminates this stream if it is, entering in next step
Journey S34;
Step 6): the device signal intensity of contemporary wireless terminals is detected, wireless terminal is taken from message
Address in physical address, with the database of radio transmitting device compares, and judges wireless terminal type, in conjunction with current nothing
Line transmitting device type obtains the signal strength threshold values S35 of contemporary wireless terminals type, into next step;
Step 7): the signal strength indication and threshold values that current radio transmission device is connect with wireless terminal compare, if
Signal strength indication is greater than current type preset threshold S36, then goes to step 8, otherwise enters in next step;
Step 8): being added to authentication list for wireless terminal, to make to determine to use S37 next time, then enters in next step;
Step 9): wireless terminal and radio transmitting device is allowed to authenticate connection S38;
Step 10) terminates S39.
Preferably, the step 5), which detect to the device signal intensity of contemporary wireless terminals, includes:
If it find that this value of current signal strength data and the fluctuation of a preceding signal strength data value are excessive, then
Value next time is carried out, and loses undulating value.Finally, removing the more apparent value of fluctuation, average.
Further, it is preferable that the undulating value of losing includes removing the more apparent signal strength data value of fluctuation, seeks letter
Number intensity data average value.
The present invention is applied to wireless signal and provides the connection management mechanism of end equipment, makes wireless terminal device in connection,
Wireless signal provides the request information that end passes through contemporary wireless terminals, and by some decision mechanisms, mobile to user whole
The control being attached is held, intelligent automated validation is realized, improves user experience to a certain extent.
More than, it is merely preferred embodiments of the present invention, but the protection scope invented is not limited thereto, it is any ripe
Know those skilled in the art in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all contain
Lid is within protection scope of the present invention.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (7)
1. a kind of certification connection mechanism method based on wireless signal strength, it is characterised in that: including radio transmitting device and nothing
Line terminal, the radio transmitting device include corresponding signal strength threshold values database, which is used for wireless
Terminal type judgement and wireless terminal signals state of strength detect, and are equipped in the radio transmitting device to wireless signal initial valve
Value determines that the radio transmitting device includes the following steps: wireless terminal certification connection
Step 1): the radio transmitting device powers on for the first time, obtains the information of contemporary wireless terminals;
Step 2): contemporary wireless terminals wireless chip type is determined, and whether with power amplifier, if so, going to step
4, if it is not, then going to step 3;
Step 3): the default threshold of the radio transmitting device inquiry respective wireless terminal chip type, and save, go to step 5;
Step 4): the radio transmitting device inquires default setting valve of the respective wireless terminal chip with power amplifier type
Value saves data, into next step;
Step 5): the default threshold of preservation is modified to threshold determination position.
2. the certification connection mechanism method based on wireless signal strength according to claim 1, it is characterised in that: described wireless
It is equipped in transmitting device and including the judgement to wireless terminal type set Initial Hurdle is determined to wireless signal Initial Hurdle, including
Following steps:
Step 1): extracting the physical address of current connection devices from network message, into next step;
Step 2): according to the composition form of physical address, judging whether wireless terminal type meets wireless terminal Class1, if
It is then to go to step 4, if it is not, then entering in next step;
Step 3): according to the composition form of physical address, judging whether wireless terminal type meets wireless terminal type 2, if
It is then to enter in next step, if it is not, then going to step 5;
Step 4): in conjunction with local wireless terminal type, inquiring corresponding Initial Hurdle in the database of the radio transmitting device,
If inquiring respective thresholds, corresponding Initial Hurdle certification connection is returned;
Step 5): it when the Initial Hurdle that respective wireless terminal type is not present in the database of the radio transmitting device, then obtains
The Initial Hurdle of local wireless terminal type is taken, default threshold certification connection is carried out.
3. the certification connection mechanism method based on wireless signal strength according to claim 1, it is characterised in that: described wireless
Transmitting device further includes the radio transmitting device monitoring wireless terminal data message to wireless terminal certification connection, passes through processing
Message carries out certification connection, and steps are as follows for this:
Step 1): program initialization, the message identifying solicited message of monitoring wireless terminal;
Step 2): if message belongs to the message being again coupled to after certification, 4 are gone to step;Otherwise enter in next step;
Step 3): judging message whether in authentication list, is to go to step 8, otherwise terminates this process;
Step 4): judge whether it is otherwise the message that request authenticates terminates this process if it is entering in next step;
Step 5): the device signal intensity of contemporary wireless terminals is detected, the physics of wireless terminal is taken from message
Address in address, with the database of radio transmitting device compares, and judges wireless terminal type, in conjunction with current wireless biography
Defeated type of device obtains the signal strength threshold values of contemporary wireless terminals type, into next step;
Step 6): the signal strength indication and threshold values that current radio transmission device is connect with wireless terminal compare, if signal
Intensity value is greater than current type preset threshold, then goes to step 8, otherwise enters in next step;
Step 7): being added to authentication list for wireless terminal, to make to determine to use next time, then enters in next step;
Step 8): wireless terminal and radio transmitting device is allowed to authenticate connection.
4. the certification connection mechanism method based on wireless signal strength according to claim 3, it is characterised in that: the step
5) carrying out detection to the device signal intensity of contemporary wireless terminals includes:
If it find that this value of current signal strength data and the fluctuation of a preceding signal strength data value are excessive, then carry out
Value next time, and lose undulating value.Finally, removing the more apparent value of fluctuation, average.
5. the certification connection mechanism method based on wireless signal strength according to claim 4, it is characterised in that: described to lose
Undulating value includes removing the more apparent signal strength data value of fluctuation, seeks signal strength data average value.
6. -4 any certification connection mechanism method based on wireless signal strength according to claim 1, it is characterised in that: institute
Stating radio transmitting device includes wireless WIFI device bluetooth transmission means either infrared transmission device.
7. -4 any certification connection mechanism method based on wireless signal strength according to claim 1, it is characterised in that: institute
Stating wireless terminal includes mobile phone either tablet computer.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101909298A (en) * | 2010-07-15 | 2010-12-08 | 优视科技有限公司 | Secure access control method and device for wireless network |
CN102724172A (en) * | 2011-07-28 | 2012-10-10 | 北京天地互连信息技术有限公司 | System and method supporting rapid access authentication |
CN104540131A (en) * | 2015-01-13 | 2015-04-22 | 贺湘平 | Authentication method based on wireless signal intensity |
CN104735666A (en) * | 2015-03-20 | 2015-06-24 | 普联技术有限公司 | Wireless network authentication method and device |
CN105072613A (en) * | 2015-08-04 | 2015-11-18 | 成都世纪光合作用科技有限公司 | Wireless network system and wireless network access method |
US20170063823A1 (en) * | 2015-08-26 | 2017-03-02 | Tatung University | Identity verification method, internet of thins gateway device, and verification gateway device using the same |
-
2018
- 2018-12-04 CN CN201811476129.4A patent/CN109495888A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101909298A (en) * | 2010-07-15 | 2010-12-08 | 优视科技有限公司 | Secure access control method and device for wireless network |
CN102724172A (en) * | 2011-07-28 | 2012-10-10 | 北京天地互连信息技术有限公司 | System and method supporting rapid access authentication |
CN104540131A (en) * | 2015-01-13 | 2015-04-22 | 贺湘平 | Authentication method based on wireless signal intensity |
CN104735666A (en) * | 2015-03-20 | 2015-06-24 | 普联技术有限公司 | Wireless network authentication method and device |
CN105072613A (en) * | 2015-08-04 | 2015-11-18 | 成都世纪光合作用科技有限公司 | Wireless network system and wireless network access method |
US20170063823A1 (en) * | 2015-08-26 | 2017-03-02 | Tatung University | Identity verification method, internet of thins gateway device, and verification gateway device using the same |
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Inventor after: Wang Rihong Inventor after: Zhang Tao Inventor before: Wang Rihong |
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Application publication date: 20190319 |