CN107608286A - A kind of safety monitoring system and method based on WiFi channel condition informations - Google Patents
A kind of safety monitoring system and method based on WiFi channel condition informations Download PDFInfo
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- CN107608286A CN107608286A CN201710828645.8A CN201710828645A CN107608286A CN 107608286 A CN107608286 A CN 107608286A CN 201710828645 A CN201710828645 A CN 201710828645A CN 107608286 A CN107608286 A CN 107608286A
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Abstract
The present invention provides a kind of safety monitoring system and method based on WiFi channel condition informations, and system includes processor module, and processor module is connected with WiFi receiving modules, human-computer interaction module, memory module and sound module；System also includes WiFi transmitter modules, WiFi transmitter modules and WiFi receiving module wireless connections.Method comprises the following steps：Safety monitoring system starts；Judge whether to enter monitoring period；If into monitoring period, into the sample collection period, obtain the channel condition information data of multigroup wireless network signal, and using after the channel condition information data processing of multigroup wireless network signal of acquisition as Static reference value；Judge whether real-time WiFi channel status datas are different from reference value；If it is different, starting security password input countdown, and sound module is controlled to send countdown voice message；If without correct password is inputted in countdown period, control sound module sends alarm.
Description
Technical field
The invention belongs to security monitoring field, and in particular to a kind of safety monitoring system based on WiFi channel condition informations
And method.
Background technology
WiFi, be Wireless Fidelity abbreviations, based on the WLAN of IEEE 802.11b standards, referred to as without
Line network signal.
Anti-thefting monitoring technology is always a popular research direction, and traditional monitoring technology is divided into two major classes at present, and one
Class is that camera watch region is monitored by monitoring camera；It is another then entered by various infrared, sound, shock sensor
Row monitoring.The first monitor mode cost is high, and second of monitoring is then there is the risk of wrong report, traditional monitoring in both of the above
All there is monitoring dead angle in mode, and monitoring device macroscopic features is clearly, and easily stolen personnel's premature degradation of stealing falls.
This is the deficiencies in the prior art, therefore, for drawbacks described above of the prior art, there is provided one kind is based on WiFi channels
The safety monitoring system and method for status information, are necessary.
The content of the invention
It is an object of the present invention to be directed to, above-mentioned traditional monitoring device cost is high, report by mistake, monitoring dead angle be present and appearance is special
Levy the defects of obvious, there is provided a kind of safety monitoring system and method based on WiFi channel condition informations, to solve above-mentioned technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of safety monitoring system based on WiFi channel condition informations, including processor module, processor module are connected with
WiFi receiving modules, human-computer interaction module, memory module and sound module；
System also includes WiFi transmitter modules, WiFi transmitter modules and WiFi receiving module wireless connections；
WiFi receiving modules are used to receive the wireless network signal that WiFi transmitter modules are sent；
The channel condition information that processor module is used to receive wireless network signal according to WiFi receiving modules judges whether
Personnel invade；
Human-computer interaction module is used to set safety time and monitoring period, sets security password；
Memory module includes time memory cell and security password memory cell；
Time memory cell is used to store safety time and monitoring period；
Security password memory cell is used to store security password；
Sound module is used to send countdown voice message or alarm.
Further, memory module also includes volume threshold memory cell；Volume threshold memory cell, which is used to store, invades
Volume threshold；Human-computer interaction module is additionally operable to set volume threshold.
Further, WiFi transmitter modules are connect using the WiFi routers for supporting IEEE802.11n and above agreement, WiFi
Module is received using the wireless network card for supporting IEEE802.11n and above agreement.
Further, human-computer interaction module includes button and display screen, or including touch-screen.
The present invention also provides following technical scheme：
A kind of method for safety monitoring based on WiFi channel condition informations, comprise the following steps：
Step 1. safety monitoring system starts；
Step 2. processor module judges whether to enter monitoring period；If into monitoring period, into step 4；
If step 3. does not enter into monitoring period, return to step 2；
Step 4. enters the sample collection period, and processor module obtains the channel condition information of multigroup WiFi wireless network signals
Data, and using after the channel condition information data processing of multigroup WiFi wireless network signals of acquisition as Static reference value；
Step 5. processor module judges whether to enter safety time；If into safety time, return to step 2；
If not entering into safety time, it is directly entered in next step；
Step 6. processor module judges whether the channel status data of real-time WiFi wireless network signals is different from reference value；
If without difference, return to step 5；If it is different, then it is directly entered in next step；
Step 7. processor module starts security password input countdown, and controls sound module to send countdown voice message；
If inputting correct password in countdown period, return to step 5, if not inputting proper password, it is directly entered down
One step；
Step 8. processor module control sound module sends alarm.
Further, step 1 safety monitoring system starts, and specifically comprises the following steps：
Step 1-1. keepers input user name, password login；
Step 1-2. judges whether to need to change safety time；If desired, then the new safety time of Administrator and during monitoring
Between；If need not, it is directly entered in next step；
Step 1-3. judges whether to need to change security password；If desired, then the new security password of Administrator；If it is not required to
Will, then it is directly entered in next step.
Further, also comprise the following steps after step 1-3：
Step 1-4. judges whether to need to set volume threshold；If desired, then Administrator volume threshold, if need not if it is straight
Tap into next step；
Also comprise the following steps before step 7：
Step 7A. judges whether the channel status data of real-time WiFi wireless network signals and the difference of reference value exceed volume
Threshold value；If being no more than, return to step 5；If exceeding, it is directly entered in next step.
Further, the sample collection period is set as 2min, sets countdown period as 30s.
Further, step 4. processor module is to the letter of the multigroup WiFi wireless network signals obtained in acquisition time section
Channel state information data are handled, and are comprised the following steps that：
The channel status letter of the multigroup WiFi wireless network signals obtained in step 4-1. processor modules extraction acquisition time section
Data are ceased, the channel condition information data of every group of WiFi wireless network signal are one group of vector value；
Multigroup vector value is generated magnitude matrix and phasing matrix by step 4-2. processor modules；
Step 4-3. processor modules calculate the amplitude covariance matrix and phase covariance square of magnitude matrix and phasing matrix
Battle array；
Step 4-4. processor modules extract the eigenvalue of maximum of amplitude covariance matrix and phase covariance matrix respectively.
Further, step 6. processor module judge real-time WiFi wireless network signals channel status data whether
It is different from reference value, comprise the following steps that：
Step 6-1. processor modules gather the channel condition information data of WiFi wireless network signals in real time, obtain one group of vector
Value；
The amplitude and phase for one group of vector value that step 6-2. processor modules are gathered in real time；
The amplitude association side that step 6-3. processor modules obtain the amplitude of gather in real time one group of vector value and acquisition time section
The eigenvalue of maximum of poor matrix compares, and determines whether difference；
The amplitude covariance matrix that processor module obtains the phase degree of gather in real time one group of vector value and acquisition time section
Eigenvalue of maximum compare, determine whether difference.
The beneficial effects of the present invention are：
The present invention using WiFi wireless networks realizes security monitoring, it is ensured that, can be with without dead angle monitoring in WiFi coverages
Flexible setting safety time and monitoring period, the present invention are judged by reading the channel condition information of WiFi wireless networks
Whether there is foreign body intrusion in signal cover, however it is not limited to living body biological, due to using very universal WiFi equipment conduct
Monitoring device, make effractor can not determine even to discover oneself in monitored state, there is very strong disguise.
In addition, design principle of the present invention is reliable, and it is simple in construction, there is very extensive application prospect.
As can be seen here, the present invention is compared with prior art, with prominent substantive distinguishing features and significantly progressive, its implementation
Beneficial effect be also obvious.
Brief description of the drawings
Fig. 1 is the system connection diagram of the present invention；
Fig. 2 is flow chart of the method for the present invention；
Wherein, 1- processor modules；2-WiFi receiving modules；3- human-computer interaction modules；4- memory modules；The 4.1- times store single
Member；4.2- security password memory cell；4.3- volume threshold memory cell；5- sound modules；6-WiFi transmitter modules；.
Embodiment：
To enable the purpose of the present invention, feature, advantage more obvious and understandable, it is embodied below in conjunction with the present invention
Accompanying drawing in example, the technical scheme in the present invention is clearly and completely described.
As shown in figure 1, the present invention provides a kind of safety monitoring system based on WiFi channel condition informations, including processor
Module 1, processor module 1 are connected with WiFi receiving modules 2, human-computer interaction module 3, memory module 4 and sound module 5；It is man-machine
Interactive module 3 includes button and display screen；
System also includes WiFi transmitter modules 6, WiFi transmitter modules 6 and the wireless connection of WiFi receiving modules 2；WiFi launches mould
Block 6 is using the WiFi routers for supporting IEEE802.11n and above agreement；WiFi receiving modules 2 are using support IEEE802.11n
And the wireless network card of above agreement
WiFi receiving modules 2 are used to receive the wireless network signal that WiFi transmitter modules 6 are sent；
Processor module 1 is used to be judged according to the channel condition information of the reception WiFi wireless network signals of WiFi receiving modules 2
It is no personnel's invasion to be present；
Human-computer interaction module 3 is used to set safety time and monitoring period, sets security password, sets volume threshold；
Memory module 4 includes time memory cell, security password memory cell and volume threshold memory cell；
Time memory cell is used to store safety time and monitoring period；
Security password memory cell is used to store security password；
Sound module is used to send countdown voice message or alarm；
Volume threshold memory cell is used for the volume threshold for storing invasion.
As shown in Fig. 2 the present invention also provides a kind of method for safety monitoring based on WiFi channel condition informations, including it is as follows
Step：
Step 1. safety monitoring system starts；Specifically comprise the following steps：
Step 1-1. keepers input user name, password login；
Step 1-2. judges whether to need to change safety time；If desired, then the new safety time of Administrator and during monitoring
Between；If need not, it is directly entered in next step；
Step 1-3. judges whether to need to change security password；If desired, then the new security password of Administrator；If it is not required to
Will, then it is directly entered in next step；
Step 1-4. judges whether to need to set volume threshold；If desired, then Administrator volume threshold, if need not if it is straight
Tap into next step；
Step 2. processor module judges whether to enter monitoring period；If into monitoring period, into step 4；
If step 3. does not enter into monitoring period, return to step 2；
Step 4. enters the sample collection period, and processor module obtains the channel condition information of multigroup WiFi wireless network signals
Data, and using after the channel condition information data processing of multigroup WiFi wireless network signals of acquisition as Static reference value；If
This acquisition time of random sample section is 2min；Comprise the following steps that：
The channel status letter of the multigroup WiFi wireless network signals obtained in step 4-1. processor modules extraction acquisition time section
Data are ceased, the channel condition information data of every group of WiFi wireless network signal are one group of vector value；
Multigroup vector value is generated magnitude matrix and phasing matrix by step 4-2. processor modules；
Step 4-3. processor modules calculate the amplitude covariance matrix and phase covariance square of magnitude matrix and phasing matrix
Battle array；
Step 4-4. processor modules extract the eigenvalue of maximum of amplitude covariance matrix and phase covariance matrix respectively；
Step 5. processor module judges whether to enter safety time；If into safety time, return to step 2；
If not entering into safety time, it is directly entered in next step；
Step 6. processor module judges whether real-time WiFi channel status datas are different from reference value；
Step 6-1. processor modules gather the channel condition information data of WiFi wireless network signals in real time, obtain one group of vector
Value；
The amplitude and phase for one group of vector value that step 6-2. processor modules are gathered in real time；
The amplitude association side that step 6-3. processor modules obtain the amplitude of gather in real time one group of vector value and acquisition time section
The eigenvalue of maximum of poor matrix compares, and determines whether difference；
The amplitude covariance matrix that processor module obtains the phase degree of gather in real time one group of vector value and acquisition time section
Eigenvalue of maximum compare, determine whether difference.
If without difference, return to step 5；If it is different, then it is directly entered in next step；
Step 7A. judges whether the difference of real-time WiFi channel status datas and reference value exceedes volume threshold；If being no more than,
Then return to step 5；If exceeding, it is directly entered in next step；
Step 7. processor module starts security password input countdown, and controls sound module to send countdown voice message；
If inputting correct password in countdown period, return to step 5, if not inputting proper password, it is directly entered down
One step；Countdown period is set as 30s；
Step 8. processor module control sound module sends alarm.
Embodiments of the invention are illustrative and not restrictive, and above-described embodiment is only to aid in understanding the present invention, because
This is every by those skilled in the art's technique according to the invention the invention is not restricted to the embodiment described in embodiment
Other embodiments that scheme is drawn, also belong to the scope of protection of the invention.
Claims (10)
1. a kind of safety monitoring system based on WiFi channel condition informations, it is characterised in that including processor module, processor
Module is connected with WiFi receiving modules, human-computer interaction module, memory module and sound module；
System also includes WiFi transmitter modules, WiFi transmitter modules and WiFi receiving module wireless connections；
WiFi receiving modules are used to receive the wireless network signal that WiFi transmitter modules are sent；
The channel condition information that processor module is used to receive WiFi wireless network signals according to WiFi receiving modules judges whether
Personnel's invasion be present；
Human-computer interaction module is used to set safety time and monitoring period, sets security password；
Memory module includes time memory cell and security password memory cell；
Time memory cell is used to store safety time and monitoring period；
Security password memory cell is used to store security password；
Sound module is used to send countdown voice message or alarm.
A kind of 2. safety monitoring system based on WiFi channel condition informations as claimed in claim 1, it is characterised in that storage
Module also includes volume threshold memory cell；Volume threshold memory cell is used for the volume threshold for storing invasion；Man-machine interaction mould
Block is additionally operable to set volume threshold.
A kind of 3. safety monitoring system based on WiFi channel condition informations as claimed in claim 1, it is characterised in that WiFi
Transmitter module is using the WiFi routers for supporting IEEE802.11n and above agreement, and WiFi receiving modules are using support
IEEE802.11n and the above agreement wireless network card.
4. a kind of safety monitoring system based on WiFi channel condition informations as claimed in claim 1, it is characterised in that man-machine
Interactive module includes button and display screen, or including touch-screen.
5. a kind of method for safety monitoring based on WiFi channel condition informations, it is characterised in that comprise the following steps：
Step 1. safety monitoring system starts；
Step 2. processor module judges whether to enter monitoring period；If into monitoring period, into step 4；
If step 3. does not enter into monitoring period, return to step 2；
Step 4. enters the sample collection period, and processor module obtains the channel condition information of multigroup WiFi wireless network signals
Data, and using after the channel condition information data processing of multigroup WiFi wireless network signals of acquisition as Static reference value；
Step 5. processor module judges whether to enter safety time；If into safety time, return to step 2；
If not entering into safety time, it is directly entered in next step；
Step 6. processor module judges whether the channel status data of real-time WiFi wireless network signals is different from reference value；
If without difference, return to step 5；If it is different, then it is directly entered in next step；
Step 7. processor module starts security password input countdown, and controls sound module to send countdown voice message；
If inputting correct password in countdown period, return to step 5, if not inputting proper password, it is directly entered down
One step；
Step 8. processor module control sound module sends alarm.
A kind of 6. method for safety monitoring based on WiFi channel condition informations as claimed in claim 5, it is characterised in that step
1 safety monitoring system starts, and specifically comprises the following steps：
Step 1-1. keepers input user name, password login；
Step 1-2. judges whether to need to change safety time；If desired, then the new safety time of Administrator and during monitoring
Between；If need not, it is directly entered in next step；
Step 1-3. judges whether to need to change security password；If desired, then the new security password of Administrator；If it is not required to
Will, then it is directly entered in next step.
A kind of 7. method for safety monitoring based on WiFi channel condition informations as claimed in claim 6, it is characterised in that step
Also comprise the following steps after 1-3：
Step 1-4. judges whether to need to set volume threshold；If desired, then Administrator volume threshold, if need not if it is straight
Tap into next step；
Also comprise the following steps before step 7：
Step 7A. judges whether the channel status data of real-time WiFi wireless network signals and the difference of reference value exceed volume
Threshold value；If being no more than, return to step 5；If exceeding, it is directly entered in next step.
A kind of 8. method for safety monitoring based on WiFi channel condition informations as claimed in claim 5, it is characterised in that setting
The sample collection period is 2min, sets countdown period as 30s.
A kind of 9. method for safety monitoring based on WiFi channel condition informations as claimed in claim 5, it is characterised in that step
4. processor module to the channel condition information data of the multigroup WiFi wireless network signals obtained in acquisition time section at
Reason, is comprised the following steps that：
The channel status letter of the multigroup WiFi wireless network signals obtained in step 4-1. processor modules extraction acquisition time section
Data are ceased, the channel condition information data of every group of WiFi wireless network signal are one group of vector value；
Multigroup vector value is generated magnitude matrix and phasing matrix by step 4-2. processor modules；
Step 4-3. processor modules calculate the amplitude covariance matrix and phase covariance square of magnitude matrix and phasing matrix
Battle array；
Step 4-4. processor modules extract the eigenvalue of maximum of amplitude covariance matrix and phase covariance matrix respectively.
A kind of 10. method for safety monitoring based on WiFi channel condition informations as claimed in claim 9, it is characterised in that step
Rapid 6. processor module judges whether the channel status data of real-time WiFi wireless network signals is different from reference value, specific step
It is rapid as follows：
Step 6-1. processor modules gather the channel condition information data of WiFi wireless network signals in real time, obtain one group of vector
Value；
The amplitude and phase for one group of vector value that step 6-2. processor modules are gathered in real time；
The amplitude association side that step 6-3. processor modules obtain the amplitude of gather in real time one group of vector value and acquisition time section
The eigenvalue of maximum of poor matrix compares, and determines whether difference；
The amplitude covariance matrix that processor module obtains the phase degree of gather in real time one group of vector value and acquisition time section
Eigenvalue of maximum compare, determine whether difference.
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Cited By (1)
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Application publication date: 20180119 |