CN204557606U - The gate control system of identity and video information when user uses can be recorded - Google Patents
The gate control system of identity and video information when user uses can be recorded Download PDFInfo
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- CN204557606U CN204557606U CN201520168405.6U CN201520168405U CN204557606U CN 204557606 U CN204557606 U CN 204557606U CN 201520168405 U CN201520168405 U CN 201520168405U CN 204557606 U CN204557606 U CN 204557606U
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Abstract
Video capture device and gate inhibition's collecting device are integrated in set of system by the video access control system of energy real time record caller id information of the present utility model, eliminate two kinds of integration of equipments and occur the video data of doorway machine and the phenomenon of gate inhibition's data corresponding relation mistake because two cover system life periods differences in two cover systems; And this system has been carried out the binding of identity information to the access object of indoor set and has been accessed police network, make floating population's register information by passive change initiatively, contribute to the tracing and managing that public security department strengthens mobile personnel, social security preventing function strengthens simultaneously.
Description
[technical field]
The utility model relates to technical field of security and protection, is specifically related to a kind of video access control system be connected with Ministry of Public Security system, the identity information of this system energy metered call person and video information when using.
[background technology]
The video acquisition of gate control system of the prior art and access control two kinds of integration of equipments are in two cover systems, then there is the video data of doorway machine and the phenomenon of gate inhibition's data corresponding relation mistake in two cover systems such as life period difference, and during network failure, video image during enabling cannot be obtained, leave hidden danger to the security of gate control system.And existing gate control system can not for visitor, visitor, when owner stays out, cannot enter in owner family.Along with increasing of floating population, the work such as population is paid close attention to and trajectory analysis, social security strick precaution propose new challenge to public security department.
[summary of the invention]
In view of this, the utility model provides a kind of gate control system that can record identity and video information when user uses.
The utility model adopts following technical scheme, and structure can record the gate control system of identity and video information when user uses, and comprises it and comprises gate inhibition's database server, video storage server, visual talk back entrance guard system; Visual talk back entrance guard system comprises user terminal and access card, doorway machine, communication and management cloud platform; Gate inhibition's database server, for preserving the access card hair fastener database in this community or community scope, for the contrast of access card brushing card data, contrast is consistent, send the steering order allowing to open the door, store record when access card is swiped the card and calls out simultaneously, be connected with doorway machine by TCP/IP interface network; Video storage server, for preserving doorway machine place continuous print image record, is connected with doorway machine by TCP/IP interface network; Doorway machine, for and user terminal, cell management center, communication between communication and management cloud platform, according to the unlock instruction coming user terminal or cell management center, completes unblanking of door lock, and to the process of video information and audio-frequency information and output, swipe the card and the storage of call record; Communication and management cloud platform, be connected by Internet and user terminal and doorway machine and cell management center, the generation of intercommunication number and granting when communicating for the first time for this system; Access card, opens door lock for swiping the card at doorway machine place, the intercommunication number that it is provided with and binding with the identity information of access card owning user; User terminal, for and doorway machine or the communication between communication and management cloud platform, the intercommunication number that it is provided with and the phone number of user terminal and/or fixed number binding.
Preferably, described gate inhibition's database server and video storage server all access police network.
Preferably, described doorway machine also stores access card and swipes the card and the call record of visitor in doorway machine, and recorded information can be sent to the data server of public security net.
Preferably, described doorway machine comprises access control unit and video control unit, and described access control unit is connected with described video control unit; Described access control unit gathers described access card card using information, described video control unit collection, the video information at process and storage doorway machine place, and access card information is sent to the contrast of gate inhibition's database server or itself completes contrast.
Preferably, described access control unit comprises the first control module, access card read module, decomposing prevention circuit and pick-proof circuit; Access card read module, exports to the first control module for the information that reads in access card; Decomposing prevention circuit, whether have entirety to be disassembled behavior for detecting doorway machine, its output terminal connects the first control module; Pick-proof circuit, for for detecting doorway machine equipment by the unauthorized behavior pried open, its output terminal connects the first control module; First control module, for access information, result is also exported described video control unit by the process of doorway machine and door lock information.
Preferably, described identity information is identification card number or fingerprint or eye mask.
Advantageous Effects of the present utility model is:
1. the video capture device of this system and gate inhibition's collecting device are integrated in set of system, eliminate two kinds of integration of equipments and occur the video data of doorway machine and the phenomenon of gate inhibition's data corresponding relation mistake because two cover system life periods differences in two cover systems; And when avoiding network failure, access card cannot open the door or cannot obtain the situation of video image.
2. the access object of this system of users terminal has been carried out the binding of identity information and has accessed police network, make floating population's register information by passive change initiatively, contribute to the tracing and managing that public security department strengthens mobile personnel, social security preventing function strengthens simultaneously.
3. solve market product doors access control system when owner stays out, the problem that visitor can not enter; Visitor only need call out before doorway machine, and owner completes on the subscriber terminal to authorize and just can open the door, and record visitor video image, facilitates the use of owner simultaneously, and the perfect safety management of inlet/outlet, has stopped unsafe factor.
4. the user terminal that couple owner uses adopts phone number binding, because of each mobile operator system mobile phone number and identification card number binding, in fact indirectly achieves the binding of identity information, effectively can screen discrepancy relation.
5. carry out uninterrupted high sharpness video video recording in 24 hours during the turnover of pair doorway machine, simultaneously abnormal to door lock state, doorway machine is disassembled to wait carries out specific video capture and transmission extremely, and the follow-up tracking of the strick precaution and problem that contribute to potential danger manages.
[accompanying drawing explanation]
The block diagram of system that can record the gate control system of identity and video information when user uses in Fig. 1 embodiment one;
The composition frame chart that can record the doorway machine of the gate control system of identity and video information when user uses in Fig. 2 embodiment one;
The circuit theory diagrams that can record the doorway machine button inputting circuits of the gate control system of identity and video information when user uses in Fig. 3 embodiment one;
The circuit theory diagrams that can record doorway machine first display module of the gate control system of identity and video information when user uses in Fig. 4 embodiment one;
The circuit theory diagrams that can record the doorway machine opening drive circuit of the gate control system of identity and video information when user uses in Fig. 5 embodiment one;
The doorway machine that can record the gate control system of identity and video information when user uses in Fig. 6 embodiment one is unblanked the circuit theory diagrams of testing circuit;
The circuit theory diagrams that can record the doorway machine decomposing prevention circuit of the gate control system of identity and video information when user uses in Fig. 7 embodiment one;
The circuit theory diagrams that can record the doorway machine pick-proof circuit of the gate control system of identity and video information when user uses in Fig. 8 embodiment one.
[embodiment]
In order to make the technical scheme of this patent and technique effect clearly, be described in detail below in conjunction with the embodiment of drawings and Examples to this patent.
Embodiment one:
As Fig. 1, the gate control system that can record identity and video information when user uses in the present embodiment, comprises community management central station, gate inhibition's database server, gate inhibition's hair fastener empowerment management server, video storage server, visual talk back entrance guard system.
Community management central station, gate inhibition's database server, gate inhibition's hair fastener empowerment management server, video storage server is all connected with following doorway machine by TCP/IP interface network.Community management central station, gate inhibition's database server, gate inhibition's hair fastener empowerment management server is all connected with the monitor terminal in public security net and data server by Ministry of Public Security's dedicated network.
Community management central station, is supplied to neighbourhood committee or community management mechanism and passes in and out situation to each doorway personnel in this community and inquire about.One can be arranged, multiple such workstation also can be set.Community management central station by TCP/IP interface network accessing video storage server and gate inhibition's database server, identity when obtaining the access of user and video information.
Gate inhibition's database server, for preserving the access card hair fastener database in this community or community scope, for Data Comparison, contrast is consistent, sends the steering order allowing to open the door, and stores record when access card is swiped the card and calls out simultaneously.
Gate inhibition's hair fastener empowerment management server, for hair fastener registration work, is generally placed on cell management center, can sends out neocaine, delete already present card, the authority etc. of amendment card.
Video storage server, for preserving the consecutive image record that all following video capture circuits gather.
Visual talk back entrance guard system
Visual talk back entrance guard system comprises user terminal and access card, cell management center, doorway machine, communication and management cloud platform.
User terminal
User terminal, for and doorway machine, cell management center, the communication between communication and management cloud platform can be various terminal; If intelligent mobile terminal, such as smart mobile phone, it is configured with visual talk back entrance guard system application software (hereinafter referred to as gate inhibition APP).Intelligent mobile terminal is compared with indoor set in the past, when user not in indoor, visitor still can in doorway machine caller party terminal and obtain the authorization and unblank to enter, improve the convenience of user.
Doorway machine
Doorway machine, for and user terminal, cell management center, communication between communication and management cloud platform, according to the unlock instruction coming user terminal or cell management center, complete unblanking of door lock, and to the process of video information and audio-frequency information and output, swipe the card and the storage of call record, use record toward the transmission etc. of public security network data server.Doorway machine comprises gate, community doorway machine, a gate doorway machine etc.
Doorway machine comprises access control unit, video control unit, communication unit.Access control unit is connected and interaction data by communication unit with video control unit.
Access control unit comprises the first control module, Wiegand protocol read head, 485 agreement read heads, button inputting circuits, first display module, first light sensation circuit, opening drive circuit, enabling testing circuit, decomposing prevention circuit, pick-proof circuit, sound light alarming circuit, power converting circuit (not shown).
Wiegand protocol read head, for reading the access card information of band Wiegand protocol and exporting to the first control module, its output terminal connects the first control module, is applicable to closely swipe the card; As unit building band Qianmen and back door, then adopt 4 road Wiegand protocol read heads; As a door is only with by unit building, then configure 2 road Wiegand protocol read heads.
485 agreement read heads, for reading the access card information of band 485 agreement and exporting to the first control module, its output terminal connects the first control module, is applicable to swipe the card more at a distance; As unit building band Qianmen and back door, then adopt 2 tunnel 485 agreement read heads.
Button inputting circuits, for receiving the keying input information of user, and convert thereof into digital signal and export to the first control module, its output terminal connects the first control module.It adopts model to be CBM7021 capacitance type touch key controller, and circuit theory diagrams are as Fig. 3.When first control control module receives the key set code of button inputting circuits input, exported and shown on the first display module.
First display module, for showing unblank feedback information and keying input information, its input end connects the first control module.First display module adopts charactron or liquid crystal display.When the first display module adopts model to be the common anode charactron of HS410361K-32, its display mode adopts the sweep circuit as Fig. 4.
First light sensation circuit, according to doorway machine place ambient light intensity, opens backlight function automatically, and to strengthen the display brightness of the first display module, its input end connects the first control module.During the first display module employing liquid crystal display, just need configure the first light sensation circuit, such as backlight circuit; Otherwise when the first display module adopts charactron to realize, the first light sensation circuit will not configure.Light sensation circuit adopts photoresistance of the prior art.
Opening drive circuit, for controlling unblanking of electromagnetic door lock, its input end is connected with the first control module, and its output terminal connects the controller of electromagnetic door lock.Circuit theory diagrams are as Fig. 5, and when the first control module exports high level to the base stage of triode Q17, triode ON, closes realization by pilot relay I6 and unblank.As unit building band Qianmen and back door, doorway machine will have two identical opening drive circuits.
Enabling testing circuit, for the on off state of detecting gate, its input end connection door magnetic switch output terminal, its output terminal connects the first control module.When enabling testing circuit detect door be in open mode continue 2 minutes time, first control module sends warning message to the second control module by communication unit, then through TCP/IP interface circuit, by the on off state of warning message and electromagnetic door lock, video data in this time period of doorway machine sends to video storage server and/or public security database server and/or cell management center by Internet network, control sound light alarming circuit work, its circuit theory diagrams are as Fig. 6 simultaneously.When the 4th pin of photoisolator is input as low level, think that electromagnetic door lock is in open mode.
Whether decomposing prevention circuit, have entirety to be disassembled behavior for detecting doorway machine, its output terminal connects the first control module.When first control module detects that doorway machine has a behavior of integral demounting by decomposing prevention circuit, warning message is sent to the second control module by communication unit, then through TCP/IP interface circuit, by warning message and doorway machine, the video data within this time period sends to video storage server by Internet network, cell management center and/or public security database server, control sound light alarming circuit work simultaneously.Circuit theory diagrams are as Fig. 7, and circuit working principle is identical with testing circuit of unblanking, does not repeat them here.
Whether pick-proof circuit, have by the unauthorized behavior pried open for detecting doorway machine equipment, its output terminal connects the first control module.When first control module is had by the unauthorized behavior pried open to doorway machine equipment by pick-proof electric circuit inspection, warning message is sent to the second control module by communication unit, then through TCP/IP interface circuit, by warning message, on off state and the video data of doorway machine within this time period of door send to video storage server by Internet network, cell management center and/or public security database server, control sound light alarming circuit work simultaneously.Circuit theory diagrams are as Fig. 8, and circuit working principle is identical with testing circuit of unblanking, does not repeat them here.
Sound light alarming circuit, for sounding and light warning simultaneously, its input end connects the first control module.This main circuit will adopt model to be that NBX103 acousto-optic siren realizes.
Enabling testing circuit, decomposing prevention circuit, pick-proof circuit, and sound light alarming circuit improves the safety index of whole safety-protection system.
Power converting circuit, for the power supply providing stability and safety to other circuit modules of the doorway machine in this embodiment, its power output end connects the power input of other circuit modules.Power module adopts AC/DC power supply of the prior art, alternating current is converted to 12V direct current.12V direct current exports 5V DC voltage through chip AP1513SA voltage stabilizing, and 5V DC voltage exports 3.3V DC voltage through chip LM117-3.3 voltage stabilizing.
First control module, for process and the output of key information, electromagnetic door lock state, doorway machine state and access information, controls the work of sound light alarming circuit and opening drive circuit, and communicates with the second control module.First control module adopts model to be the CPU of MA84G564, concrete function is as follows: for the instruction from button inputting circuits is exported to the second control module by communication unit, key information is exported to the first display module display, and the work of sound light alarming circuit is controlled according to the status information of testing circuit of unblanking, output is unblanked or is closed lock signal to opening drive circuit, and the information from Wiegand protocol read head and 485 agreement read heads is sent to video control unit by communication unit.
First control module is connected and interaction data by communication unit with the second control module.
Video control unit comprises the second control module, video input circuit, the second display module, the second light sensation circuit, sound collection circuit, sound playing circuit, TCP/IP interface circuit.
Video input circuit, swipes the card for gathering access card, before and after user calls out, doorway machine is disassembled behavior, and door lock has illegally to be opened, the video information at doorway machine place when door-lock opening overlong time and user go out, and export to the second control module, its output terminal connects the second control module.The parts gathering video information adopt simulation camera can the cost of the person of economizing in consumption.
Second display module, for Information issued, the information of issue can be word, picture, and video information and acoustic information, its input end connects the second control module.Second display module adopts liquid crystal display.
Second light sensation circuit, according to doorway machine place ambient light intensity, opens backlight function automatically, and to strengthen the display brightness of the second display module, its input end connects second can control module.Light sensation circuit adopts photoresistance of the prior art.
Sound collection circuit, for gathering the sound signal of calling party, and output it to the second control module, its output terminal connects the second control module.Sound collection circuit generally adopts microphone of the prior art.
Sound playing circuit, for back sound information, its input end connects the second control module.Sound playing circuit adopts loudspeaker of the prior art.
TCP/IP interface circuit, for doorway machine access Internet network, and Internet network exchanges data.
Second control module, for process and the output of video information and audio-frequency information, and and the first control module, the communication between Internet network, it adopts model to be the chip of GM8283.Concrete function is as follows:
1. convert the vision signal from video input circuit to digital signal, send to video storage server to store by TCP/IP interface circuit, cell management center and/or public security database server;
2. the checking request from access control unit first control module is sent to the comparison of gate inhibition's database server by TCP/IP interface circuit, the comparison result returned as TCP/IP interface circuit is that information is consistent, then the control information of enabling is sent to the first control module by communication unit.As TCP/IP interface circuit cannot be connected to gate inhibition's database server time, then compare with the information that stores of video control unit this locality, comparison result be information consistent time, then the control information of enabling is sent to the first control module by communication unit; Store gate inhibition's card using information simultaneously.
3. show from after the video information process of Internet network on the second display module, play on sound playing circuit from after the audio-frequency information process of Internet network.The acoustic information gathered by sound collection circuit, through TCP/IP interface circuit, sends to user terminal by Internet network.
The process of gate inhibition's database server and video control unit comparison is the condition whether information of checking access card meets enabling, and if whether this access card is to should this gate, community, whether identity information is consistent.
Cell management center
Cell management center, for the communication between doorway machine and user terminal with control unblanking of a large door lock and the large door lock in community, is connected with doorway machine or user terminal by Internet network, comprise communication module, logging modle, display module, control module.
Communication module, for the communication between doorway machine and user terminal;
Logging modle, records a video and call record for the video or audio frequency recording or preserve doorway machine;
Display module, for showing the video at doorway machine place;
Control module, the communication between control and management center and doorway machine or control unblanking of doorway machine.
Communication and management cloud platform
Communication and management cloud platform, comprise communication service management module, Number Service administration module, information distribution service module, device management module, to operational management module under line (hereinafter referred to as O2O operational management module) on online off-line/line.
Communication service management module, for and doorway machine, user terminal communicates with cell management center.
Number Service administration module, for the management such as amendment of the generation of intercommunication number, granting, inquiry, deletion, change, corresponding password.Management staff by communication and management cloud platform browser on computers complete bookkeeping or setting.
User is when first time uses this system, and system can generate and distribute an intercommunication number.The configuration rule of intercommunication number has multiple, and such as: cell id-generic term for a building, e. g. Apartment, store, a movie theater, etc.-resident family number, wherein cell id 3 bit digital represent, generic term for a building, e. g. Apartment, store, a movie theater, etc. 3 bit digital represent, resident family number represents by 4 bit digital, and 101-001-0101 represents the Room 101 of 1 of 101 communities.According to the configuration rule of setting, corresponding intercommunication number is generated to each resident family.
After intercommunication number generates, can by the information of intercommunication number inquiry functional inquiry intercommunication number, the intercommunication number of whole community is derived various text formatting, the number designation corresponding according to intercommunication number or the type of number, pass through the distribution and installation of communication service management module to different property entity devices by intercommunication number.Number designation and the type of number, be such as administrative center or gate, district or a gate or resident family number, property entity device is doorway machine, administrative center and user terminal.
Gate doorway machine, to the calling of user terminal, only need input latter four of intercommunication number on a panel of gate doorway machine.
Gate, district doorway machine, to the calling of user terminal, the panel of Zhi Xu district gate doorway machine inputs latter seven of intercommunication number.
As in doorway machine, brush access card is unblanked, with the intercommunication number that the identity information with access card owning user is bound in access card.
Conveniently use and simplify the management of intercommunication number, to realize the information registration problem in the management of floating population, the identity information of the phone number of user and/or fixed telephone number and intercommunication number and user terminal owning user can be bound, make mapping relations table one to one, so during user terminal called, visitor only need in doorway machine caller party terminal, input resident family number, the other side gate inhibition APP is online, then directly call the other side gate inhibition APP, carry out video call; If the other side gate inhibition APP is online, then can automatically incoming call to the phone number bound or fixed telephone number.User terminal is regular handset or landline telephone in this way, and when intercommunication number and phone number or fixed telephone number are bound, system can the mobile phone of this intercommunication number binding of automatic call or fixed telephone number.
The information that can embody identity is the information such as the identification card number of owning user, fingerprint or eye mask.Access card, user terminal is all used by the relevant people by authorizing.
Information distribution service module, for the commonweal information that managerial demand sends, the contents such as advertisement; Content after supervisor authority can be sent to the doorway machine and user terminal of specifying by communication service management module.Management staff can complete bookkeeping or setting by the browser on computer.
Device management module, resolves the failure message received from equipment such as doorway machine.When the equipment Inspections such as doorway machine are broken down to self, the content such as failure message, failure code can be sent to communication and management cloud platform, the defect content that management staff is resolved by device management module, to corresponding treatment measures be taked, such as, assign maintenance man to repair or change the equipment of fault.
O2O operation management module, for connecting the service interface that operator provides.Such as gate inhibition APP send water function, the net purchase platform cooperating with respective cell to send the phone of water business or send water business can be modified as in communication on the server and management cloud platform, be then sent in the gate inhibition APP of user terminal by communication service management module.
The foregoing is only the preferred embodiment of this patent, be not limited to this patent, for a person skilled in the art, this patent can have various modifications and variations.Within all spirit at this patent and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in this patent.
Claims (6)
1. can record the gate control system of identity and video information when user uses, it is characterized in that: it comprises gate inhibition's database server, video storage server, visual talk back entrance guard system;
Visual talk back entrance guard system comprises user terminal and access card, doorway machine, communication and management cloud platform;
Gate inhibition's database server, for preserving the access card hair fastener database in this community or community scope, for the contrast of access card brushing card data, contrast is consistent, send the steering order allowing to open the door, store record when access card is swiped the card and calls out simultaneously, be connected with doorway machine by TCP/IP interface network;
Video storage server, for preserving doorway machine place continuous print image record, is connected with doorway machine by TCP/IP interface network;
Doorway machine, for and user terminal, cell management center, communication between communication and management cloud platform, according to the unlock instruction coming user terminal or cell management center, completes unblanking of door lock, and to the process of video information and audio-frequency information and output, swipe the card and the storage of call record;
Communication and management cloud platform, be connected by Internet and user terminal and doorway machine and cell management center, the generation of intercommunication number and granting when communicating for the first time for this system;
Access card, opens door lock for swiping the card at doorway machine place, and the identity information of access card and owning user is bound;
User terminal, for and doorway machine or the communication between communication and management cloud platform, the intercommunication number that it is provided with and the phone number of user terminal and/or fixed number binding.
2. can record the gate control system of identity and video information when user uses as claimed in claim 1, it is characterized in that: described gate inhibition's database server and video storage server all access police network.
3. can record the gate control system of identity and video information when user uses as claimed in claim 1 or 2, it is characterized in that: described doorway machine also stores access card and swipes the card and the call record of visitor in doorway machine, and recorded information can be sent to the data server of public security net.
4. can record the gate control system of identity and video information when user uses as claimed in claim 1 or 2, it is characterized in that: described doorway machine comprises access control unit and video control unit, described access control unit is connected with described video control unit; Described access control unit gathers described access card card using information, described video control unit collection, the video information at process and storage doorway machine place, and access card information is sent to the contrast of gate inhibition's database server or itself completes contrast.
5. can record the gate control system of identity and video information when user uses as claimed in claim 4, it is characterized in that: described access control unit comprises the first control module, access card read module, decomposing prevention circuit and pick-proof circuit;
Access card read module, exports to the first control module for the information that reads in access card;
Decomposing prevention circuit, whether have entirety to be disassembled behavior for detecting doorway machine, its output terminal connects the first control module;
Pick-proof circuit, for for detecting doorway machine equipment by the unauthorized behavior pried open, its output terminal connects the first control module;
First control module, for access information, result is also exported described video control unit by the process of doorway machine and door lock information.
6. can record the gate control system of identity and video information when user uses as claimed in claim 1 or 2, it is characterized in that: described identity information is identification card number or fingerprint or eye mask.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520168405.6U CN204557606U (en) | 2015-03-24 | 2015-03-24 | The gate control system of identity and video information when user uses can be recorded |
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| CN201520168405.6U CN204557606U (en) | 2015-03-24 | 2015-03-24 | The gate control system of identity and video information when user uses can be recorded |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517388A (en) * | 2019-08-30 | 2019-11-29 | 北京青岳科技有限公司 | A kind of entrance guard controlling method and system with security audit |
| CN110619591A (en) * | 2019-08-27 | 2019-12-27 | 绿漫科技有限公司 | System for realizing accurate acquisition of floating population information based on intelligent garbage classification data |
| CN110675534A (en) * | 2019-09-23 | 2020-01-10 | 小控(杭州)科技有限公司 | Visitor talkback access control system and use method thereof |
| CN111935561A (en) * | 2020-07-17 | 2020-11-13 | 浙江大华技术股份有限公司 | Method, device and system for configuring intercom system |
-
2015
- 2015-03-24 CN CN201520168405.6U patent/CN204557606U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110619591A (en) * | 2019-08-27 | 2019-12-27 | 绿漫科技有限公司 | System for realizing accurate acquisition of floating population information based on intelligent garbage classification data |
| CN110517388A (en) * | 2019-08-30 | 2019-11-29 | 北京青岳科技有限公司 | A kind of entrance guard controlling method and system with security audit |
| CN110675534A (en) * | 2019-09-23 | 2020-01-10 | 小控(杭州)科技有限公司 | Visitor talkback access control system and use method thereof |
| CN111935561A (en) * | 2020-07-17 | 2020-11-13 | 浙江大华技术股份有限公司 | Method, device and system for configuring intercom system |
| CN111935561B (en) * | 2020-07-17 | 2023-03-24 | 浙江大华技术股份有限公司 | Method, device and system for configuring intercom system |
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