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CN1568022A - Access control intercom system - Google Patents

Access control intercom system Download PDF

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Publication number
CN1568022A
CN1568022A CN 03146704 CN03146704A CN1568022A CN 1568022 A CN1568022 A CN 1568022A CN 03146704 CN03146704 CN 03146704 CN 03146704 A CN03146704 A CN 03146704A CN 1568022 A CN1568022 A CN 1568022A
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resident
database
intercom system
community
processing unit
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CN 03146704
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Chinese (zh)
Inventor
李宗江
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Hoa Telecom Network Co ltd
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Hoa Telecom Network Co ltd
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Priority to CN 03146704 priority Critical patent/CN1568022A/en
Publication of CN1568022A publication Critical patent/CN1568022A/en
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Abstract

An access intercom system comprising: a database for storing the resident code, telephone number and identification code of the community resident. A dialing communication module connected to the loop of the public network switch for the visitor to dial to communicate with the resident or receive the incoming call from other users. A central processing unit, which can use the resident code inputted by the visitor to pick up the telephone number of the resident in the database and carry out dialing action through the dialing communication module to communicate with the resident terminal. A caller ID capturing module, which can capture the caller ID of other user end and compare with the database through the CPU. When the incoming call number is preset in the database, the community entrance is allowed to be opened.

Description

Gate inhibition's intercom system
Invention field
The present invention is relevant with a kind of gate inhibition's intercom system, particularly about a kind of gate inhibition's intercom system that the public network path switching mechanism operates and relevant method of operation of seeing through.
Background technology
Along with the fast development of industry and commerce, a large amount of population flow to be assembled toward the city, cause all can regional population more silk fabric is close.Continue in the living space under the situation of reduction, high buildings and large mansions have replaced the life aspect at traditional solitary only family, so that people are provided enough spaces, house as much as possible.Under this kind condition, apartment and flats miscellaneous, community building arise at the historic moment, and also become unique the considering that most common people purchase house and buy property.
Yet for community's dwelling house of major part, all extend in all direction in its surrounding enviroment traffic main artery, and present opening residential Building Design.Under the lower situation of confidentiality, thieves or robbers who act under cover of night ruffian is easy to invasion, causes its security maintenance to become difficult more.Particularly in recent years, because the fluctuation of political economy makes that social security continues to ruin, various deathwatch, robbery even the case of setting on fire emerge in an endless stream, and make the maintenance of community's home safety be subjected to great challenge.Person more for the apartment inhabitation mode in community building, owing to often be not familiar with mutually between each resident family, is with effective control or affirmation turnover personnel's identity, makes the effect of security protection have a greatly reduced quality.
In addition, for present community building because wherein resident family's quantity is quite a lot of, be be difficult to as apartment and flats, the bell button of installing intercom and being connected in each resident family in the access door position is so that the visitor can directly get in touch with specific resident family.In such cases, in larger community or building, tend to be provided with administration committee with the effective management gate inhibition of community, reduce the chance of thieves or robbers who act under cover of night's invasion as much as possible.The typical practice similarly is in the building or community access door side is provided with a guardroom, and the personnel that come in and go out are carried out interrogating and examining and recognizing of identity, and basic keeing watch and whistle ring function is provided.And, in order further to prevent bothering or entering of non-resident personnel, on access door, also can install gate inhibition's card (lock) or install identity identifying device miscellaneous additional, to strengthen identification turnover personnel's effect.
Yet with present building or the gate inhibition's of community administrative situation, the above-mentioned practice still has many problems and shortcoming.At first, carry out the Security Services of entrance guard management, often will expend great amount of manpower and spirit on many odd jobs, and can't effectively will concentrate in the security protection of dwelling house.For example, because the switch of access door is all controlled by the Security Services, be with when the visitor visits resident family, need the Security Services to see through intercom and resident family and carry out cross validation and let pass again.In case when personnel's number of community's turnover is too much, when the Security Services faces the inquiry of having more visitors or business than one can attend to, just may flows and reduce the entrance guard management effect in carelessness.
Person more, when resident family stayed out or temporarily can't answer intercom, the Security Services also can't confirm with resident family, judges visiting personnel's identity.Although in many communities or building, all can require resident family that the emergency interconnection phone is provided, conveniently to link up and to get in touch with.Yet this kind practice has increased the risk of resident family's individual privacy exposure virtually also.Particularly, when the conservator has the situation of flow of personnel, how under the situation of safeguarding resident family's right of privacy, provide effective entrance guard management, will become has more challenge.
Summary of the invention
Purpose of the present invention is providing a kind of gate inhibition's intercom system, by the resident family of community that built-in data bank is stored indoor/cellular phone numbers, can provide the visitor to see through the public network path switching mechanism and resident family gets in touch.
Another object of the present invention is providing a kind of gate inhibition's intercom system, by the stored resident family's telephone number of built-in data bank, can provide the mode switch community access door of this resident family with dialing.
The present invention has disclosed a kind of gate inhibition's intercom system.It is installed on community's access door with provide converse between visitor and resident family end get in touch, identity validation, with the function of access door switch.This gate inhibition's intercom system comprises following elements at least: data bank, store resident family of community resident family's code, telephone number, with the identity identification sign indicating number.The number dialing telephone call module is linked to public network path switching mechanism loop, can allow the access door visitor carry out dialing and converses with resident family end, or receive the incoming call of other use side.Central processing unit, be linked to data bank and number dialing telephone call module respectively, can respond resident family's code that access door turnover personnel see through the keyboard input, and the telephone number of resident family in the acquisition data bank, and see through the number dialing telephone call module and carry out dial action, personnel can get in touch with resident family's end so that access door is come in and gone out.Caller ID acquisition module, be linked to number dialing telephone call module and central processing unit respectively, the caller ID of other use side of fechtable, and see through central processing unit and data bank is compared, when this caller ID is in the data bank during predefined resident family telephone number, allow central processing unit directly to open community's access door.Radio frequency identity identification induction installation can be sent to central processing unit with the identity identification message that senses, so that compare with the resident family's identity identification sign indicating number in the data bank, and allows central processing unit directly to open community's access door.Remote-receiver can be sent to central processing unit with the identity identification message that senses, so that compare with the resident family's identity identification sign indicating number in the data bank, and allows central processing unit directly to open community's access door.
Wherein when resident family's desire is opened community's access door, can gate inhibition's intercom system be dialled mobile phone, when the caller ID acquisition caller ID that module captured, when identical, then allow central processing unit directly to open community's access door with the cellular phone numbers of presetting in the data bank.
Wherein when above-mentioned number dialing telephone call module carries out the interphone dialing to resident family end, if run into the interphone talk the line is busy or during ring unanswered's phone, then central processing unit can see through the number dialing telephone call module automatically, transfer the cellular phone numbers of resident family.
Gate inhibition's intercom system provided by the present invention has considerable advantage:
(1), be the chance of getting in touch with resident family, even if during resident family stayed out at present, visiting personnel still can see through gate inhibition's intercom system and get in touch with the resident family of going out with can the comprehensive visitor of providing owing in data bank, added the cellular phone numbers of resident family;
(2) person has more forgotten to carry out when crossing the threshold remote controller or identification card when resident family, still can see through its mobile phone, gate inhibition's intercom system is dialled, at the errorless back unlatching of comparison access door;
(3) since gate inhibition's intercom system to schedule coupled system serve the dealer, to carry out the download with data for updating of uploading of record material, be can keep data at any time in situation the most accurately, and maintain best operating state with gate inhibition's intercom system.
Description of drawings
Fig. 1 has shown the configuration relation figure of gate inhibition's intercom system provided by the present invention;
Fig. 2 shows the arranged mode that data bank stores data in gate inhibition's intercom system of the present invention;
Fig. 3 shows the operating process of gate inhibition's intercom system provided by the present invention; And
Fig. 4 shows the management process of gate inhibition's intercom system provided by the present invention.
The figure number explanation
Gate inhibition's intercom system 10 access doors 11 public network path switching mechanisms 12
14 system service dealers, 16 data bank 18 are held by resident family
Central processing unit 20 dialing keyboards 22 number dialing telephone call modules 24
Show module 26 radio frequency identity identification induction installations 28
Remote-receiver 30 caller IDs acquisition module 32
First part, 181 second parts 182
The 3rd part 183 the 4th parts 184
Embodiment
The invention provides a kind of gate inhibition's intercom system, the wherein built-in indoor/cellular phone numbers of resident family of community, therefore can provide the visitor to see through the public network path switching mechanism with resident family gets in touch, and can provide resident family to see through gate inhibition's intercom system, control the switch of community's access door with its phone.Shown in relevant of the present invention being described in detail as follows.
Please refer to Fig. 1, this figure has shown gate inhibition's intercom system 10 provided by the present invention.This kind gate inhibition intercom system 10 mainly is installed on community or the building access door 11, holds the function of conversing with identity validation so that visitor and resident family to be provided, and at the switch of confirming the errorless back of identity may command access door 11.This gate inhibition's intercom system 10 also can see through the home loop of public network path switching mechanism 12, and gets in touch or data transmission with resident family's end 14 or system service dealer 16.
In an embodiment of the present invention, the main element of this gate inhibition's intercom system 10 comprised a data bank 18, a central processing unit 20, a dialing keyboard 22, a number dialing telephone call module 24, show module 26, a radio frequency identity identification induction installation 28, with a remote-receiver 30.Wherein, data bank 18 mainly stored resident family of community resident family's code, telephone number, with the identity identification sign indicating number.As for number dialing telephone call module 24, then can see through line loop and be linked to public network path switching mechanism 12, allow the access door visitor see through dialing keyboard 22 and carry out dialing,, or receive the incoming call that sends other use side by public network path switching mechanism 12 so that hold 14 to carry out telephonic communication with resident family.
Described central processing unit 20 then is connected to data bank 18 and number dialing telephone call module 24.When access door turnover personnel see through one group of resident family of dialing keyboard 22 key entries code, central processing unit 20 can be by the telephone number of this resident family of acquisition in the data bank, and directly carry out dial action through number dialing telephone call module 24, hold and attempt this resident family of communication, can directly see through gate inhibition's intercom system 10 so that be positioned at the discrepancy personnel at access door 11 places, converse with this resident family's end 14.This central processing unit 20 also is connected to demonstration module 26 such as liquid crystal screen display, so that provide relevant operation message to give the discrepancy personnel.
Central processing unit 20 also is connected to radio frequency identity identification induction installation (RF ID) 28 and wireless remote control receiving device (remote control) 30, so that with the identity identification message of sensing, compares with the resident family's identity identification sign indicating number in the data bank 18.When resident family with the identification card when gate inhibition's intercom system 10, but the data code on the radio frequency identity identification induction installation 28 Auto-Sensing identification cards and sees through central processing unit 20 and compares with the identity identification sign indicating number in the data bank 18.When comparison was errorless, central processing unit 20 can drive signal and directly community's access door 11 be opened.In addition, resident family also can use Digiplex, sees through the identification action of wireless remote control receiving device 30, central processing unit 20 and data bank 18, and directly access door 11 is opened.
For usefulness that further promotes identity identification and the convenience that increases resident family, in gate inhibition's intercom system 10 of the present invention, and installed a caller ID acquisition module 32, be linked to number dialing telephone call module 24 and central processing unit 20 respectively.When other use sides dial to this gate inhibition's intercom system 10 through public network path switching mechanism 12, the caller ID of these caller ID acquisition module 32 these use sides of fechtable, and the resident family's telephone number that sees through in central processing unit 20 and the data bank 18 is compared, when this caller ID is in the data bank 18 during predefined resident family telephone number, allow central processing unit 20 directly to open community's access door 11 to drive signal.
In other words, when resident family's end is returned home desire unlatching access door 11, when not carrying identification card or remote controller, also can directly dial to gate inhibition's intercom system 10 with personal mobile phone as if discovery.In central processing unit 20 comparison data bank 18, after resident family's end preset phone number, then can allow directly to open access door 11 and come in and go out to make things convenient for resident family.
Then please refer to Fig. 2, this figure has shown the arranged mode of stored data in the data bank 18.Data in this data bank 18 has mainly comprised four parts.First part 181 is the correspondence table of resident family's code cable phone number default with it.Wherein Yu She telephone is often referred to this resident family interphone at home, so when the visitor is dialled by gate inhibition's intercom system 10 of access door position, just can see through public network path switching mechanism 12, put through resident family and hold 14 interphone and obtain contact with this resident family.
As for second 182 of the parts is the correspondence table of its cable phone number of resident family and cellular phone numbers.When 10 pairs of resident family's ends of gate inhibition's intercom system carry out the interphone dialing, if the line is busy to run into telephone talk, or surpass Preset Time still during ring unanswered's phone, then central processing unit 20 can see through the mobile phone of number dialing telephone call module 24 these resident families of the transfer automatically according to the data of second part 182.Thus, even if this resident family goes out or temporarily can't answer interphone the time, still can get in touch with the visitor at access door place via mobile phone.
In addition, the 3rd part the 183 and the 4th in data bank 18 is 184 radio frequency identity identification sign indicating number and remote controller identity identification sign indicating numbers that stored each resident family respectively partly, can compare at the data code of its identification card (IDcard) of discrepancy personnel or remote controller.When comparison is errorless, then see through central processing unit 20 and drive access door 11 unlatchings.
Please refer to Fig. 3, for the ease of understanding its unique effects of gate inhibition's intercom system provided by the present invention, below and be illustrated by relevant operating process.When the still uncertain resident family of visiting personnel code 100, can inquire 102 to the Security Services via the button of seeking help on gate inhibition's intercom system.And then seeing through dialing keyboard input code 104, this moment, central processing unit can be by the cable phone number that takes out this resident family in the data bank, and saw through the number dialing telephone call module and carry out dial action 106.So, the visitor can see through the telephone contact mode and resident family's end converses 108, opens access door by resident family's end for it again.Otherwise, after the telephone of this resident family is in the engaged condition of telephone talk or puts through jingle bell during the ring unanswered 110, then central processing unit can select the cellular phone numbers of this resident family to dial 112 automatically, so that this visitor can get in touch with this resident family.
It should be noted that, for effective managing gate inhibition intercom system 10, system service dealer 16 also can see through public network path switching mechanism 12 in the present invention, upgrades data bank 18 contents of gate inhibition's intercom system 10, captures the record material in gate inhibition's intercom system 10 simultaneously.Relevant flow process as shown in Figure 4, externally dial in each gate inhibition's intercom system 10, incoming call answering or when opening access door, central processing unit 20 can be written into a notes record to the memory body of depositing data bank 18, and with all personnel's that come in and go out turnover situation record in addition, as step 120.In general, this notes record can comprise: the time that the telephone number of dialing or incoming call or the identification card data that induction installation detects and access door are opened.Then, gate inhibition's intercom system 10 can dial into system service dealer 16 in the default time, and sends each notes record of being put down in writing to system service dealer 16, as step 122.In preferred embodiment, gate inhibition's intercom system 10 can connect the networking by dialing, again the record data is seen through the networking and is sent in system service dealer 16 the computer system.And, the time of implementation that this kind record is uploaded, tend to be set between two o'clock in the morning to four, with the situation of avoiding gate inhibition's intercom system 10 can't provide the discrepancy personnel to use.
When all records upload finish after, system service dealer 16 also can see through the networking line, the data in the data bank 18 is carried out more new element, as step 124.Generally speaking, as resident family move away from, new resident family moves into or system operation data will upgrade the time, system service dealer 16 can be downloaded to gate inhibition's intercom system 10 with the data of upgrading, to keep its optimal operations usefulness by connection state.And,, therefore can safeguard the safety of community's occupants of building more effective, accurately because system service dealer 16 can be written into gate inhibition's intercom system 10 with up-to-date resident family's data, interphone number, cellular phone numbers, resident family's identification code at once.
Though the present invention illustrates as above with preferred embodiments, so it is not in order to limit spirit of the present invention and invention entity, only to terminate in the foregoing description.Be with, the modification of being done in not breaking away from spirit of the present invention and scope all should be included in the following claim.

Claims (10)

1.一种门禁对讲系统,装设于社区出入门上以提供访客与住户端间进行通话联系、身份确认、与出入门开关的功能,其特征在于,该门禁对讲系统至少包含:1. An access control intercom system, which is installed on the entrance of the community to provide the functions of communication between visitors and residents, identity confirmation, and access switch. It is characterized in that the access control intercom system includes at least: 资料库,储存社区住户的住户代码、电话号码、与身份辨识码;The database stores the household codes, telephone numbers, and identification codes of community households; 拨号通话模组,连结于公众网路交换机回路,能让出入门访客进行电话拨号而与住户端进行通话,或是接收其它使用端的来电;The dial-up call module is connected to the switch circuit of the public network, allowing the visitors at the entrance to dial the number to communicate with the residential end, or receive incoming calls from other end users; 中央处理器,分别连结于该资料库与该拨号通话模组,能回应出入门出入人员透过键盘输入的住户代码,而撷取该资料库中该住户的电话号码,并透过该拨号通话模组进行拨号动作,以便该出入门进出人员可与该住户端取得联系;The central processing unit is connected to the database and the dial-up communication module respectively, and can respond to the resident code input by the entry and exit personnel through the keyboard, and retrieve the resident's phone number in the database, and make a call through the dial-up The module performs a dialing action, so that the person entering and exiting the door can get in touch with the residential terminal; 来电号码撷取模组,分别连结于该拨号通话模组与该中央处理器,可撷取其它使用端的来电号码,并透过该中央处理器与该资料库进行比对,当该笔来电号码为该资料库中预先设定的住户电话号码时,允许该中央处理器直接开启社区出入门;以及The incoming call number retrieval module is connected to the dialing module and the central processing unit respectively, which can retrieve the incoming call numbers of other users and compare them with the database through the central processing unit. When the incoming call number Allowing the central processing unit to directly open community gates when it is a pre-set resident phone number in the database; and 射频身份辨识感应装置,能将感测到的身份辨识讯息,传送至该中央处理器,以便与该资料库中的住户身份辨识码进行比对,而允许该中央处理器直接开启社区出入门;The radio frequency identification sensing device can transmit the sensed identification information to the central processing unit for comparison with the resident identification code in the database, allowing the central processing unit to directly open the community gate; 遥控接收装置,能将感测到的身份辨识讯息,传送至该中央处理器,以便与该资料库中的住户身份辨识码进行比对,而允许该中央处理器直接开启社区出入门。The remote control receiving device can transmit the sensed identification information to the central processing unit for comparison with the resident identification code in the database, allowing the central processing unit to directly open the community door. 2.如权利要求1所述的系统,其特征在于,上述资料库中所储存的住户电话号码,包括了有线电话号码与行动电话号码。2. The system according to claim 1, wherein the resident phone numbers stored in the database include wired phone numbers and mobile phone numbers. 3.如权利要求2所述的系统,其特征在于,当住户欲开启该社区出入门时,可以行动电话对该门禁对讲系统进行拨号,当该来电号码撷取模组所撷取的来电号码,与该资料库中预设的行动电话号码相同时,则允许该中央处理器直接开启该社区出入门。3. The system according to claim 2, wherein when the resident wants to open the gate of the community, he can dial the access control intercom system with his mobile phone, and when the incoming call captured by the incoming call number retrieval module number, when it is the same as the preset mobile phone number in the database, the central processing unit is allowed to directly open the door of the community. 4.如权利要求2所述的系统,其特征在于,当上述拨号通话模组对该住户端进行有线电话拨号时,如果遇到有线电话交谈占线中、或无人接听电话时,则该中央处理器会自动透过该拨号通话模组,转拨该位住户的该行动电话号码。4. The system according to claim 2, wherein when the above-mentioned dial-up call module dials the wired telephone of the residential terminal, if the wired telephone conversation is busy or no one answers the call, the central The processor will automatically transfer the mobile phone number of the resident through the dialing module. 5.一种门禁对讲系统的操作方法,其特征在于,该门禁对讲系统装设于社区出入门上以提供访客与住户端间进行通话联系、身份确认、与出入门开关的功能,该门禁对讲系统的资料库并储存了住户的代码、有线电话号码、与行动电话号码,而可透过公众网路交换机联系该位住户,该方法至少包含下列步骤:5. An operation method of an access control intercom system, characterized in that the access control intercom system is installed on the door of the community to provide the functions of call contact, identity confirmation, and door switch between the visitor and the resident terminal. The database of the access control intercom system also stores the resident's code, wired phone number, and mobile phone number, and the resident can be contacted through the public network exchange. The method at least includes the following steps: 输入代码以便由该资料库中撷取该住户的有线电话号码;Enter the code to retrieve the resident's wired telephone number from the database; 对该笔有线电话号码进行拨号动作,以便与该住户取得联系;Dial the wired telephone number so as to get in touch with the resident; 当该位住户的有线电话占线、或是无人接听时,则自动撷取该位住户的行动电话号码;且When the resident's wired phone is busy or no one answers, the resident's mobile phone number is automatically retrieved; and 对该笔行动电话号码进行拨号动作,以便与该住户取得联系。Perform a dialing action on the mobile phone number to get in touch with the resident. 6.一种门禁对讲系统中资料的管理方法,其特征在于,该门禁对讲系统系装设于社区出入门上以提供访客与住户端间进行通话联系、身份确认、与出入门开关的功能,该门禁对讲系统的资料库并储存了住户的代码、有线电话号码、与行动电话号码,而可透过公众网路交换机联系住户端或系统服务业者,该方法至少包含下列步骤:6. A method for managing data in an access control intercom system, characterized in that the access control intercom system is installed on the door of the community to provide communication between visitors and residents, identity confirmation, and door opening and closing function, the database of the access control intercom system also stores the resident's code, wired phone number, and mobile phone number, and can contact the resident or system service provider through the public network exchange. The method at least includes the following steps: 当该门禁对讲系统进行拨号、接听来电、或开关出入门时,形成一笔记录;When the access control intercom system dials, answers incoming calls, or opens and closes a door, a record is formed; 于预设的时间点,进行拨号动作以联系该系统服务业者;At a preset time point, perform a dialing action to contact the system service provider; 将所记载的各笔记录上传至该系统服务业者;且Upload each recorded record to the system service provider; and 由该系统服务业者下载资料,以便对该资料库中的资料进行更新动作。The data is downloaded by the system service provider so as to update the data in the database. 7.如权利要求6所述的方法,其特征在于,该笔记录包括拨号或来电的电话号码、或是辨识卡片上的资料讯息、以及出入门开启的时间。7. The method according to claim 6, wherein the record includes the dialed or incoming phone number, or the information on the identification card, and the time when the door was opened. 8.如权利要求6所述的方法,其特征在于,上述该门禁对讲系统可经由拨号连上网路,再将各笔记录透过网路上传至该系统服务业者的电脑系统中。8. The method according to claim 6, wherein the access control intercom system can be connected to the Internet via dial-up, and then each record can be uploaded to the computer system of the system service provider through the Internet. 9.如权利要求8所述的方法,其特征在于,将上述预设的时间点为凌晨两点至四点。9. The method according to claim 8, characterized in that the preset time point is from 2:00 am to 4:00 am. 10.如权利要求6所述的方法,其特征在于,由该系统服务业者下载资料,系于有住户搬离、新住户迁入、或是系统操作资料要更新时进行,并且该系统服务业者下载的资料,包括了住户资料、有线电话号码、行动电话号码、住户辨识码。10. The method according to claim 6, characterized in that, the downloading of data by the system service provider is carried out when a resident moves out, a new resident moves in, or when the system operation data needs to be updated, and the system service provider The downloaded information includes household information, wired phone number, mobile phone number, and household identification code.
CN 03146704 2003-07-09 2003-07-09 Access control intercom system Pending CN1568022A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016813A1 (en) * 2005-08-10 2007-02-15 Hoa Telecom Co., Ltd An entrance guard intercom system
CN101833805A (en) * 2010-04-30 2010-09-15 中山大学 An access control system with remote calling
CN101689314B (en) * 2007-06-29 2012-08-15 商业门股份公司 Devices for remotely opening doors or entrances to buildings
CN102724358A (en) * 2012-05-28 2012-10-10 惠州Tcl移动通信有限公司 Method for implementing door control talkback, mobile terminal and door control interphone
CN104602204A (en) * 2014-12-31 2015-05-06 小米科技有限责任公司 Visitor informing method and device
CN106953993A (en) * 2017-03-24 2017-07-14 北京千丁互联科技有限公司 A kind of intelligent security guard realization method and system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016813A1 (en) * 2005-08-10 2007-02-15 Hoa Telecom Co., Ltd An entrance guard intercom system
CN101689314B (en) * 2007-06-29 2012-08-15 商业门股份公司 Devices for remotely opening doors or entrances to buildings
CN101833805A (en) * 2010-04-30 2010-09-15 中山大学 An access control system with remote calling
CN102724358A (en) * 2012-05-28 2012-10-10 惠州Tcl移动通信有限公司 Method for implementing door control talkback, mobile terminal and door control interphone
CN102724358B (en) * 2012-05-28 2016-03-30 惠州Tcl移动通信有限公司 A kind of implementation method of gate access inter-speaking, mobile terminal and door control interphone
CN104602204A (en) * 2014-12-31 2015-05-06 小米科技有限责任公司 Visitor informing method and device
CN104602204B (en) * 2014-12-31 2019-03-01 小米科技有限责任公司 Visitor's based reminding method and device
CN106953993A (en) * 2017-03-24 2017-07-14 北京千丁互联科技有限公司 A kind of intelligent security guard realization method and system

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