CN104899627A - Access control system and access control method - Google Patents
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Abstract
The invention provides an access control system and an access control method, which relate to the field of signal detection technology. The access control system comprises a detection device for identifying people getting in and out and a server, the detection device is connected with the server, and the detection device comprises a device body, an antenna array for receiving an identification signals sent by a signal source, a camera for capturing a face image, a processor for processing the identification signal and the face image and an alarm unit. By means of the mutual cooperation between the groups of array antennas, the access control system provided by the embodiment of the invention detects the direction of the identification signal sent by the signal source, effectively determines whether the signal source is in a specific detection area, only identifies the signal source in the detection area, and obtains the identity information of a signal source carrier. Meanwhile, the access control system compares a face image corresponding to the identity information with the face image captured by the camera to further verify the identity of the signal source carrier, and carries out recording, the accuracy of identification is high, and the speed is high.
Description
Technical field
The present invention relates to signal detection technique field, in particular to a kind of access management system and room entry/exit management method.
Background technology
When coming in and going out particular place (as the mine) of some, in order to safety guarantee, usually needing the identity examining discrepancy personnel, being convenient to management.
In practice, employing access management system is usually: require that discrepancy personnel carry identity label card, during discrepancy, recognition device detects label card.
For this access management system, when recognition device identifies the identity label card in surveyed area, identity label card near surveyed area can cause interference to the signal source in surveyed area, recognition device cannot determine one's identity the uniqueness of label card, causes read false rate and mortality very high.
Summary of the invention
The object of the present invention is to provide a kind of location access management system, to solve in prior art management system when testing staff's identity, read false rate and the higher problem of mortality.
To achieve these goals, the technical scheme of embodiment of the present invention employing is as follows:
First aspect, embodiments provide a kind of access management system, described access management system comprises the pick-up unit and server that identify turnover personnel identity, described pick-up unit is connected with described server, described pick-up unit comprises device body, the aerial array of the identification signal that Received signal strength source sends, catch the camera of face image, the processor that described identification signal and described face image are processed and warning device, described aerial array comprises multiple array antenna group, array antenna group described in each comprises two omnidirectional antennas, array antenna group described in each has a surveyed area cut-off rule corresponding with it, described surveyed area cut-off rule is the perpendicular bisector of the connecting line of described two omnidirectional antennas on horizontal plane, the region that the surveyed area cut-off rule corresponding respectively with described multiple array antenna group surrounds is surveyed area, processor is used for the position judging to send the signal source of described identification signal according to the described identification signal received, the identification signal that the described signal source entering described surveyed area sends is identified, obtain the identity information of the carrier of this signal source, the face image that described identity information and described camera capture is sent to described server, the described identity information that described server sends for receiving described processor, and the face image corresponding with described identity information is searched in the face image data storehouse of presetting, the face image that the face image found and described camera capture is contrasted, if coupling, then record the identity information be verified, if do not mated, then return the information of authentication failed to described processor, described warning device is used for carrying out sound and light alarm after described processor receives the information of described authentication failed.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, described processor comprises: AGC control unit, for by automatic growth control mode by each described array antenna received to described identification signal be converted to the fixed amplitude identification signal that amplitude is fixed value; DOA computing unit, for the described fixed amplitude identification signal by each described array antenna group, be considered as the Received signal strength that far field incidence obtains, the computing formula substituting into direction of arrival detection algorithm calculates; Region estimation unit, for estimating which region that the incident direction of described identification signal is arranged in the described surveyed area separator bar corresponding with each described array antenna group and is separated out according to result of calculation; Signal incident direction obtains unit, for obtaining the signal incident direction of described identification signal relative to each described array antenna group according to estimated result; Locality obtains unit, for obtaining sending the locality of described signal source relative to each array in described multiple array antenna group of described identification signal according to described signal incident direction; Source location judging unit, the locality of described signal source relative to each the array antenna group in described multiple array antenna group of described identification signal is sent for basis, judge whether described signal source is all positioned at the side including described surveyed area relative to each described surveyed area separator bar, if so, then think that described signal source is positioned at surveyed area.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, described device body is detecting gate, described detecting gate comprises top board, the base plate relative with described top board and connects the side plate of described top board and described base plate, described array antenna group is arranged at described side plate, described surveyed area covers the interior zone of described detecting gate, described camera is arranged at described top board or side plate, side faced by described camera is the entrance of described detecting gate, described camera back to side be the outlet of described detecting gate.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the third possible embodiment of first aspect, wherein, the horizontal section of described detecting gate is rectangle, described aerial array comprises 4 array antenna groups, described 4 array antenna groups are arranged at 4 drift angle places of the rectangular area that described side plate surrounds respectively, the rectangular central region that 4 the surveyed area separator bars obtained according to described 4 array antenna groups surround is described surveyed area, and described surveyed area covers the rectangular area that described side plate surrounds.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, described multiple array antenna group is arranged at the varying level position of described side plate respectively.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the 5th kind of possible embodiment of first aspect, wherein, in the described array antenna group that described aerial array comprises, two or more described array antenna group forms large group of a complementary array antenna, is same straight line according to the described surveyed area separator bar that the described array antenna group in large group of a described complementary array antenna obtains.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the 6th kind of possible embodiment of first aspect, wherein, described aerial array is divided into two or more the antenna array unit including identical described array antenna group.
In conjunction with the 6th kind of possible embodiment of first aspect, embodiments provide the 7th kind of possible embodiment of first aspect, wherein, the multiple described array antenna group that each described antenna array unit comprises is arranged at same level, and different described antenna array units is arranged at different surface levels.
In conjunction with second to the 7th any one possible embodiment of first aspect, embodiments provide the 8th kind of possible embodiment of first aspect, wherein, described pick-up unit also comprises the detective devices using infrared ray for detecting human body, described detective devices using infrared ray is connected with described processor, when the human body quantity that described detective devices using infrared ray detects meets default alert if, described warning device carries out sound and light alarm.
In conjunction with the 8th kind of possible embodiment of first aspect, embodiments provide the 9th kind of possible embodiment of first aspect, wherein, described detective devices using infrared ray comprises the first probe unit, one or more in second probe unit or the 3rd probe unit, described first probe unit comprises the infrared probe of human body in multiple non-surveyed area for detecting outside described entrance, described second probe unit comprises multiple infrared probe for detecting human body in described surveyed area, described 3rd probe unit comprises the infrared probe of human body in multiple non-surveyed area for detecting described outlet outside.
Second aspect, the embodiment of the present invention additionally provides a kind of room entry/exit management method, be applied to access management system, described access management system comprises the pick-up unit and server that identify turnover personnel identity, described pick-up unit is connected with described server, described pick-up unit comprises the aerial array of the identification signal that Received signal strength source sends, catch the camera of face image, the processor that described identification signal and described face image are processed and warning device, described aerial array comprises multiple array antenna group, array antenna group described in each comprises two omnidirectional antennas, array antenna group described in each has a surveyed area cut-off rule corresponding with it, described surveyed area cut-off rule is the perpendicular bisector of the connecting line of described two omnidirectional antennas on horizontal plane, the region that the surveyed area cut-off rule corresponding respectively with described multiple array antenna group surrounds is surveyed area, described method comprises: judge whether described signal source is positioned at described surveyed area according to the described identification signal that described array antenna group receives, the identification signal that the described signal source entering described surveyed area sends is identified, obtains the identity information of the carrier of this signal source, the face image corresponding with described identity information is searched in the face image data storehouse of presetting, the face image that the face image found and described camera capture is contrasted, if coupling, then records the identity information be verified, if do not mated, then carry out sound and light alarm.
The access management system that the embodiment of the present invention provides and method, cooperatively interacted by many group patterns antenna, the direction of the identification signal that sensed signal sources sends, whether decision signal source is in specific surveyed area effectively, only the signal source in surveyed area is identified, obtain the identity information of signal source carrier.Facial image corresponding for identity information and camera are captured facial image to contrast, the identity of further reception of signals source carrier, line item of going forward side by side, recognition correct rate is high, and speed is fast simultaneously.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.Shown in accompanying drawing, above-mentioned and other object of the present invention, Characteristics and advantages will be more clear.Reference numeral identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing by physical size equal proportion convergent-divergent, focus on purport of the present invention is shown.
Fig. 1 shows the structural representation of a kind of access management system that the embodiment of the present invention provides;
Fig. 2 shows the structured flowchart of the processor of the another kind of access management system that the embodiment of the present invention provides;
The view of the identification signal that the array antenna group Received signal strength source that Fig. 3 shows the embodiment of the present invention to be provided sends;
Fig. 4 shows the structural representation of the another kind of pick-up unit that the embodiment of the present invention provides;
Fig. 5 shows the structural representation of the array antenna of the another kind of access management system that the embodiment of the present invention provides;
Fig. 6 shows the structural representation of another pick-up unit that the embodiment of the present invention provides;
Fig. 7 shows the structural representation of the array antenna of another access management system that the embodiment of the present invention provides;
Fig. 8 shows the inner structure schematic diagram of another pick-up unit that the embodiment of the present invention provides;
Fig. 9 shows the external structure schematic diagram of another pick-up unit that the embodiment of the present invention provides.
In figure, mark is specially:
Pick-up unit 100, server 200, signal source 300, surveyed area 400;
Device body 110, aerial array 120, processor 130, camera 140, warning device 150;
Top board 111, base plate 112, side plate 113;
AGC control unit 131, DOA computing unit 132, region estimation unit 133, signal incident direction obtain unit 134, locality obtains unit 135, source location judging unit 136;
First probe unit 701, second probe unit 702, the 3rd probe unit 703.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Access management system provided by the invention, is applicable to the scene of some the identity of personnel of particular place (as meeting-place, school, mine etc.) of coming in and going out being carried out to statistical management.During use, the pick-up unit of access management system is arranged at particular place gateway and goes out or on necessary channel, when making turnover particular place, signal source carrier will inevitably through surveyed area.When the carrier carrying signal source enters particular place, its identity information will be obtained and record by access management system.
Consult Fig. 1, a kind of access management system that the embodiment of the present invention provides, described access management system comprises the pick-up unit 100 and server 200 that identify turnover personnel identity, and described pick-up unit 100 is connected with described server 200,
The aerial array 120 of the identification signal that described pick-up unit 100 comprises device body 110, Received signal strength source 300 sends, the camera 140 catching face image, the processor 130 that described identification signal and described face image are processed and warning device 150
Described aerial array 120 comprises multiple array antenna group, array antenna group described in each comprises two omnidirectional antennas, array antenna group described in each has a surveyed area cut-off rule corresponding with it, described surveyed area cut-off rule is the perpendicular bisector of the connecting line of described two omnidirectional antennas on horizontal plane, the region that the surveyed area cut-off rule corresponding respectively with described multiple array antenna group surrounds is surveyed area 400
Described processor 130 is for judging the position sending the signal source 300 of described identification signal according to the described identification signal received, the identification signal that the described signal source 300 entering described surveyed area 400 sends is identified, obtain the identity information of the carrier of this signal source 300, the face image that described identity information and described camera 140 capture is sent to described server 200
The described identity information that described server 200 sends for receiving described processor 130, and the face image corresponding with described identity information is searched in the face image data storehouse of presetting, the face image that the face image found and described camera 140 capture is contrasted, if coupling, then record the identity information be verified, if do not mated, then return the information of authentication failed to described processor 130
Described warning device 150 carries out sound and light alarm after receiving the information of described authentication failed for described processor 130.
In practice, signal source 300 adopts positioning label card usually, and described identifying information is the identity information of the carrier of described positioning label card.As other embodiments of the present invention, signal source 300 also can adopt other device that can send identification signal or equipment.
In FIG, pick-up unit 100 is arranged at the doorway place of certain particular place, and device body 110 is detecting gate, on the sidewall that multiple array antenna groups of aerial array 120 are arranged at detecting gate or roof.By the setting of pair array antenna sets position, the space size that the surveyed area 400 and the device body 110 that make to be marked off by surveyed area 400 cut-off rule surround is suitable.Like this, when the carrier carrying signal source 300 enters the space that detecting gate surrounds, just can be correctly validated, it is be in outside surveyed area 400 that other carrier not entering detecting gate are then judged out.The signal source 300 being in surveyed area 400 is identified, obtains the identity information of carrier.When carrier enters the space that detecting gate surrounds, camera 140 can catch the face image of incomer, then the identity information of carrier and face image can be sent to server 200 together, server 200 has default face image data storehouse, in face image data storehouse, the face image that each identity information has typing in advance only corresponding with it.Server 200 searches the face image corresponding with described identity information according to the identity information of carrier from face image data storehouse, the face image that the face image found and described camera 140 capture is contrasted, if coupling, what just illustrate that carrier carries is the signal source 300 of oneself identity corresponding, record the identity information be verified, if do not mated, just illustrate it is personation, then return the information of authentication failed to described processor 130, processor 130 controls warning device 150 and carries out sound and light alarm.Wherein, " sound " in acousto-optic, except chimes of doom, also has voice reminder.Meanwhile, other steps in testing process, also have computer Synth Voice prompting and guiding.
Processor 130 can be arranged at the inside of device body 110, also can be separated with device body 110.As other embodiment of the present invention, device body 110 can be not only detecting gate also can be sense channel, or other can mark the facility of certain space.
The access management system that the embodiment of the present invention provides, cooperatively interacted by many group patterns antenna, the direction of the identification signal that sensed signal sources 300 sends, whether decision signal source 300 is in specific surveyed area 400 effectively, only the signal source 300 in surveyed area 400 is identified, obtain the identity information of signal source 300 carrier.Facial image corresponding for identity information and camera 140 are captured facial image to contrast, the identity of further reception of signals source 300 carrier, line item of going forward side by side, recognition correct rate is high, and speed is fast simultaneously.
As shown in Figure 2, the another kind of access management system that the embodiment of the present invention provides, is with the difference of previous embodiment:
Described processor 130 comprises: AGC control unit 131, DOA computing unit 132, region estimation unit 133, signal incident direction obtain unit 134, locality obtains unit 135 and source location judging unit 136.
AGC control unit 131, for by automatic growth control (AGC) mode by each described array antenna received to described identification signal be converted to the fixed amplitude identification signal that amplitude is fixed value;
DOA computing unit 132, for the described fixed amplitude identification signal by each described array antenna group, be considered as the Received signal strength that far field incidence obtains, the computing formula substituting into DOA detection algorithm calculates;
Region estimation unit 133, for estimating which region that the incident direction of described identification signal is arranged in described surveyed area 400 separator bar corresponding with each described array antenna group and is separated out according to result of calculation;
Signal incident direction obtains unit 134, for obtaining the signal incident direction of described identification signal relative to each described array antenna group according to estimated result;
Locality obtains unit 135, for obtaining sending the locality of described signal source 300 relative to each array in described multiple array antenna group of described identification signal according to described signal incident direction;
Source location judging unit 136, the locality of described signal source 300 relative to each the array antenna group in described multiple array antenna group of described identification signal is sent for basis, judge whether described signal source 300 is all positioned at the side including described surveyed area 400 relative to each described surveyed area 400 separator bar, if so, then think that described signal source 300 is positioned at surveyed area 400.
Processor 130 judges the principle of signal source 300 position as shown in Figure 3, surface level is divided into 401a and 401b by surveyed area 400 cut-off rule 401, relative to array antenna group, if when signal source 300 is in 401a, the incident angle of its identification signal is belong in (-pi/2,0) certainly, if when signal source 300 is in 401b, the incident angle of its identification signal is belong in (0, pi/2) certainly.
If identification signal is θ relative to the estimation incident angle of array antenna group, the spacing of two omnidirectional antennas 402 is d, and the range difference arriving two omnidirectional antennas 402 during identification signal transmission is L.The essence reason producing range difference is poor if having time from signal source 300 to two omnidirectional antenna 402, makes the mistiming be τ.Mistiming is reacted in Signal reception, is presented as the phase differential receiving signal.Following relational expression can be obtained according to DOA detection algorithm:
L＝τ·c＝dsin(θ)
Array antenna group two omnidirectional antenna 402 phase of received signal difference is:
φ
1＝ω
0τ＝2πf
0d sin(θ)/c＝2πd sin(θ)/λ
Wherein, c is the light velocity, ω
0for signal angular frequency, f
0for signal frequency, λ is signal wavelength.
Received signal strength is expressed as by we:
Doing spatial fourier transform to this signal is:
In formula, M is the omnidirectional antenna number that an array antenna group comprises.Obvious M=2, so can obtain:
Further conversion, can obtain
Utilize φ
1=2 π d sin (θ)/λ, search | X (φ) |
2peak, can obtain estimating incident angle angle θ.Its span is (-pi/2 ,+pi/2).
Estimate that incident angle angle θ and identification signal are respectively relative to the actual incidence angle θ of two omnidirectional antennas 402
1and θ
2numerical value is also unequal, but span must belong to same interval, if the value calculating θ belongs in (-pi/2,0), then can determine θ
1and θ
2value also belong in (-pi/2,0), and specifically need not calculate θ
1and θ
2value.Wherein, in order to improve the accuracy to incident angle angle estimation, the spacing d of two omnidirectional antennas 402 is set to the value much smaller than human body width, to guarantee that carrier can not between two omnidirectional antennas 402 when detecting estimation.
Above-mentioned processor 130 judges that the method for signal source 300 position is equally applicable to other embodiments of the invention.
As illustrated in figures 4-5, the another kind of access management system that the embodiment of the present invention provides, in the present embodiment, described device body 110 is detecting gate, described detecting gate comprises top board 111, the base plate 112 relative with described top board 111 and connect the side plate 113 of described top board 111 and described base plate 112, described array antenna group is arranged at described side plate 113, described surveyed area 400 covers the interior zone of described detecting gate, , described camera 140 is arranged at described top board 111 or side plate 113, side faced by described camera 140 is the entrance of described detecting gate, described camera 140 back to side be the outlet of described detecting gate.
The horizontal section of described detecting gate is rectangle, described aerial array 120 comprises 4 array antenna groups, described 4 array antenna groups are arranged at 4 drift angle places of the rectangular area that described side plate 113 surrounds respectively, the rectangular central region that 4 surveyed area 400 separator bars obtained according to described 4 array antenna groups surround is described surveyed area 400, and described surveyed area 400 covers the rectangular area that described side plate 113 surrounds.
4 array antenna groups that aerial array 120 comprises, be respectively 201,202,203,204, each array antenna group comprises two omnidirectional antennas, the level height arranged due to different array antenna groups is different, when determining surveyed area 400, first the omnidirectional antenna of each array antenna group is all mapped in same level, then on described surface level, connect two omnidirectional antennas belonging to same array antenna group, get the perpendicular bisector of the connecting line of two omnidirectional antennas belonged in same array antenna group as described surveyed area 400 cut-off rule corresponding with this array antenna group, and then obtain respectively with 201, 202, 203, 4 surveyed area 400 cut-off rules 301 of 204 correspondences, 302, 303, 304, described surface level is all divided into two regions by each described surveyed area 400 separator bar, wherein, surface level is divided into 301a and 301b by 301, surface level is divided into 302a and 302b by 302, surface level is divided into 303a and 303b by 303, surface level is divided into 304a and 304b by 304, and by 301, 302, 303, 304 surveyed areas surrounded 400 also can regard 301b as, 302b, the overlapping region of 303a and 304a.
When there being signal source 300 to be positioned at surveyed area 400, the identification signal that array antenna group Received signal strength source 300 sends, pick-up unit 100 first by AGC control unit 131 by each described array antenna received to described identification signal be converted to the fixed amplitude identification signal that amplitude is fixed value.Then the computing formula fixed amplitude identification signal after conversion being substituted into DOA detection algorithm calculates.Can estimate, signal source 300 is for 301, and incident angle belongs to (0, pi/2), for 302, incident angle belongs to (0, pi/2), for 303, and incident angle belongs to (-pi/2,0), for 403, incident angle belongs to (-pi/2,0).And then can obtain, relative to 301, identification signal is from 301b, and relative to 302, identification signal is from 302b, and relative to 303, identification signal is from 303a, and relative to 403, identification signal is from 304a.Due to the characteristic of electromagnetic wave rectilinear propagation, can determine, signal source 300 is positioned at 301b, 302b, 303a and 304a simultaneously, the scope that the position of signal source 300 and surveyed area 400 comprise is compared, and can confirmation signal source 300 be exactly be positioned at surveyed area 400.
If in surveyed area 400, when detecting multiple signal source 300, processor 130 sends warning message simultaneously, controls sound and light alarm device handler 130 and reports to the police, to point out carrier.Until when the signal source 300 in surveyed area 400 remains one, processor 130 just identifies the identification signal of this signal source 300, obtains the identifying information of this signal source 300.
When carrier enters the space that detecting gate surrounds, camera 140 just starts the face image catching the carrier entered, then the identity information of carrier and face image can be sent to server 200 together, server 200 has default face image data storehouse, in face image data storehouse, the face image that each identity information has typing in advance only corresponding with it.Server 200 searches the face image corresponding with described identity information according to the identity information of carrier from face image data storehouse, the face image that the face image found and described camera 140 capture is contrasted, if coupling, what just illustrate that carrier carries is the signal source 300 of oneself identity corresponding, record the identity information be verified, if do not mated, just illustrate it is personation, then return the information of authentication failed to described processor 130, processor 130 controls warning device 150 and carries out sound and light alarm.
The access management system that the embodiment of the present invention provides, cooperatively interacted by many group patterns antenna, the direction of the identification signal that sensed signal sources 300 sends, whether decision signal source 300 is in specific surveyed area 400 effectively, only the signal source 300 in surveyed area 400 is identified, obtain the identity information of signal source 300 carrier.Facial image corresponding for identity information and camera 140 are captured facial image to contrast, the identity of further reception of signals source 300 carrier, line item of going forward side by side, recognition correct rate is high, and speed is fast simultaneously.
As Figure 6-Figure 7, another access management system that the embodiment of the present invention provides, be with other embodiment differences, in order to ensure to detect in the process of identification signal, effectively can avoid the impact of multipath effect, other signal disturbing can also be got rid of, more effectively the position of signal source 300 is judged.In the described array antenna group that aerial array 120 comprises, two or more described array antenna group forms large group of a complementary array antenna, is same straight line according to described surveyed area 400 separator bar that the described array antenna group in large group of a described complementary array antenna obtains.
In the present embodiment, device body 110 is provided with 8 array antenna groups altogether, and array antenna group described in each comprises two omnidirectional antennas.Wherein, large group of 511,512 compositions complementary array antenna, corresponding surveyed area 400 separator bar is 510, and the surface level at the place that projected by array antenna is divided into 510a and 510b; 521, large group of 522 compositions complementary array antenna, corresponding surveyed area 400 separator bar is that 520 surface levels array antenna being projected place are divided into 520a and 520b; 531, large group of 532 compositions complementary array antenna, corresponding surveyed area 400 separator bar is that 530 surface levels array antenna being projected place are divided into 530a and 530b; 541, large group of 542 compositions complementary array antenna, corresponding surveyed area 400 separator bar is that 540 surface levels array antenna being projected place are divided into 540a and 540b.Surveyed area 400 is the zone lines surrounded by 510,520,530,540, i.e. 510b, 520b, 530a and 540a overlapping region.
When there being signal source 300 to be positioned at surveyed area 400, the identification signal that array antenna group Received signal strength source 300 sends, pick-up unit 100 first by AGC mode by each described array antenna received to described identification signal be converted to the fixed amplitude identification signal that amplitude is fixed value.Then the computing formula fixed amplitude identification signal after conversion being substituted into DOA detection algorithm calculates.Can estimate, signal source 300 is for 511,512, and incident angle belongs to (0, pi/2), for 521,522, incident angle belongs to (0, pi/2), for 531,532, incident angle belongs to (-pi/2,0), for 541,542, incident angle belongs to (-pi/2,0).And then can obtain, relative to 511,512, identification signal is from 510b, and relative to 521,522, identification signal is from 520b, and relative to 531,532, identification signal is from 530a, and relative to 541,542, identification signal is from 540a.Due to the characteristic of electromagnetic wave rectilinear propagation, can determine, signal source 300 is positioned at 510b, 520b, 530a and 540a simultaneously, the scope that the position of signal source 300 and surveyed area 400 comprise is compared, and can confirmation signal source 300 be exactly be positioned at surveyed area 400.Pick-up unit 100 identifies the identification signal received again, obtains the identifying information of this signal source 300.
After getting the identifying information of signal source 300, follow-up authentication process itself is identical with previous embodiment, does not repeat them here.
As illustrated in figs. 8-9, another access management system that the embodiment of the present invention provides, the present embodiment with on the difference of an embodiment be: the impact caused to prevent multipath effect further, described aerial array 120 is divided into aerial array 120 unit 610,611 including identical described array antenna group of two.Wherein, the multiple described array antenna group that each described aerial array 120 unit comprises is arranged at same level, and different described aerial array 120 unit is arranged at different surface levels.
Described pick-up unit 100 also comprises the detective devices using infrared ray for detecting human body, described detective devices using infrared ray is connected with described processor 130, when the human body quantity that described detective devices using infrared ray detects meets default alert if, described warning device 150 carries out sound and light alarm.
Described detective devices using infrared ray comprises the first probe unit 701, second probe unit 702 and the 3rd probe unit 703, described first probe unit 701 comprises the infrared probe of human body in multiple non-surveyed area for detecting outside described entrance, described second probe unit 702 comprises multiple infrared probe for detecting human body in described surveyed area 400, and described 3rd probe unit 703 comprises the infrared probe of human body in multiple non-surveyed area for detecting described outlet outside.
As other embodiments provided by the invention, described detective devices using infrared ray can comprise in the first probe unit 701, second probe unit 702 or the 3rd probe unit 703 one or more.
Such as, when the second probe unit 702 detect in surveyed area 400 have people time, the first probe unit 701 has also detected people, now trigger alarm device 150 start report to the police; Or the 3rd probe unit 703 when having detected people, when the second probe unit 702 has also detected people, can start to report to the police by trigger alarm device 150 equally.And when only having one to detect people in the first probe unit 701, second probe unit 702 or the 3rd probe unit 703, or first probe unit 701 and the 3rd probe unit 703 when detecting people simultaneously, not trigger alarm device 150, the normal identification signal of pick-up unit 100.Such setting is to ensure one-man in surveyed area 400, is convenient to pick-up unit 100 and detects identification signal, reduce the interference from other people.
As other embodiments provided by the invention, the actual conditions when alert if that trigger alarm device 150 starts to report to the police also can use according to user adjust.
The access management system that the embodiment of the present invention provides, cooperatively interacted by many group patterns antenna, the direction of the identification signal that sensed signal sources 300 sends, whether decision signal source 300 is in specific surveyed area 400 effectively, only the signal source 300 in surveyed area 400 is identified, obtain the identity information of signal source carrier.Facial image corresponding for identity information and camera 140 are captured facial image to contrast, the identity of further reception of signals source carrier, line item of going forward side by side, recognition correct rate is high, and speed is fast simultaneously.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, again such as, multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some communication interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
Claims (11)
1. an access management system, is characterized in that, described access management system comprises the pick-up unit and server that identify turnover personnel identity, and described pick-up unit is connected with described server,
The aerial array of the identification signal that described pick-up unit comprises device body, Received signal strength source sends, the camera catching face image, the processor that described identification signal and described face image are processed and warning device,
Described aerial array comprises multiple array antenna group, array antenna group described in each comprises two omnidirectional antennas, array antenna group described in each has a surveyed area cut-off rule corresponding with it, described surveyed area cut-off rule is the perpendicular bisector of the connecting line of described two omnidirectional antennas on horizontal plane, the region that the surveyed area cut-off rule corresponding respectively with described multiple array antenna group surrounds is surveyed area
Described processor is used for the position judging to send the signal source of described identification signal according to the described identification signal received, the identification signal that the described signal source entering described surveyed area sends is identified, obtain the identity information of the carrier of this signal source, the face image that described identity information and described camera capture is sent to described server
The described identity information that described server sends for receiving described processor, and the face image corresponding with described identity information is searched in the face image data storehouse of presetting, the face image that the face image found and described camera capture is contrasted, if coupling, then record the identity information be verified, if do not mated, then return the information of authentication failed to described processor
Described warning device is used for carrying out sound and light alarm after described processor receives the information of described authentication failed.
2. access management system according to claim 1, is characterized in that, described processor comprises:
AGC control unit, for by automatic growth control (AGC) mode by each described array antenna received to described identification signal be converted to the fixed amplitude identification signal that amplitude is fixed value;
DOA computing unit, for the described fixed amplitude identification signal by each described array antenna group, be considered as the Received signal strength that far field incidence obtains, the computing formula substituting into direction of arrival detection algorithm calculates;
Region estimation unit, for estimating which region that the incident direction of described identification signal is arranged in the described surveyed area separator bar corresponding with each described array antenna group and is separated out according to result of calculation;
Signal incident direction obtains unit, for obtaining the signal incident direction of described identification signal relative to each described array antenna group according to estimated result;
Locality obtains unit, for obtaining sending the locality of described signal source relative to each array in described multiple array antenna group of described identification signal according to described signal incident direction;
Source location judging unit, the locality of described signal source relative to each the array antenna group in described multiple array antenna group of described identification signal is sent for basis, judge whether described signal source is all positioned at the side including described surveyed area relative to each described surveyed area separator bar, if so, then think that described signal source is positioned at surveyed area.
3. access management system according to claim 1, it is characterized in that, described device body is detecting gate, described detecting gate comprises top board, the base plate relative with described top board and connects the side plate of described top board and described base plate, described array antenna group is arranged at described side plate, described surveyed area covers the interior zone of described detecting gate, described camera is arranged at described top board or side plate, side faced by described camera is the entrance of described detecting gate, described camera back to side be the outlet of described detecting gate.
4. access management system according to claim 3, it is characterized in that, the horizontal section of described detecting gate is rectangle, described aerial array comprises 4 array antenna groups, described 4 array antenna groups are arranged at 4 drift angle places of the rectangular area that described side plate surrounds respectively, the rectangular central region that 4 the surveyed area separator bars obtained according to described 4 array antenna groups surround is described surveyed area, and described surveyed area covers the rectangular area that described side plate surrounds.
5. access management system according to claim 3, is characterized in that, described multiple array antenna group is arranged at the varying level position of described side plate respectively.
6. access management system according to claim 3, it is characterized in that, in the described array antenna group that described aerial array comprises, two or more described array antenna group forms large group of a complementary array antenna, is same straight line according to the described surveyed area separator bar that the described array antenna group in large group of a described complementary array antenna obtains.
7. access management system according to claim 3, is characterized in that, described aerial array is divided into two or more the antenna array unit including identical described array antenna group.
8. access management system according to claim 7, is characterized in that, the multiple described array antenna group that each described antenna array unit comprises is arranged at same level, and different described antenna array units is arranged at different surface levels.
9. the access management system according to claim 3-8 any one, it is characterized in that, described pick-up unit also comprises the detective devices using infrared ray for detecting human body, described detective devices using infrared ray is connected with described processor, when the human body quantity that described detective devices using infrared ray detects meets default alert if, described warning device carries out sound and light alarm.
10. access management system according to claim 9, it is characterized in that, described detective devices using infrared ray comprise in the first probe unit, the second probe unit or the 3rd probe unit one or more, described first probe unit comprises the infrared probe of human body in multiple non-surveyed area for detecting outside described entrance, described second probe unit comprises multiple infrared probe for detecting human body in described surveyed area, and described 3rd probe unit comprises the infrared probe of human body in multiple non-surveyed area for detecting described outlet outside.
11. 1 kinds of room entry/exit management methods, be applied to access management system, it is characterized in that, described access management system comprises the pick-up unit and server that identify turnover personnel identity, described pick-up unit is connected with described server, described pick-up unit comprises the aerial array of the identification signal that Received signal strength source sends, catch the camera of face image, the processor that described identification signal and described face image are processed and warning device, described aerial array comprises multiple array antenna group, array antenna group described in each comprises two omnidirectional antennas, array antenna group described in each has a surveyed area cut-off rule corresponding with it, described surveyed area cut-off rule is the perpendicular bisector of the connecting line of described two omnidirectional antennas on horizontal plane, the region that the surveyed area cut-off rule corresponding respectively with described multiple array antenna group surrounds is surveyed area, described method comprises:
Judge whether described signal source is positioned at described surveyed area according to the described identification signal that described array antenna group receives;
The identification signal that the described signal source entering described surveyed area sends is identified, obtains the identity information of the carrier of this signal source;
The face image corresponding with described identity information is searched in the face image data storehouse of presetting;
The face image that the face image found and described camera capture is contrasted, if coupling, then records the identity information be verified, if do not mated, then carry out sound and light alarm.
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