CN102215370A - 802.11n-protocol-based wireless video interphone system - Google Patents
802.11n-protocol-based wireless video interphone system Download PDFInfo
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- CN102215370A CN102215370A CN2011101513025A CN201110151302A CN102215370A CN 102215370 A CN102215370 A CN 102215370A CN 2011101513025 A CN2011101513025 A CN 2011101513025A CN 201110151302 A CN201110151302 A CN 201110151302A CN 102215370 A CN102215370 A CN 102215370A
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Abstract
The invention discloses an 802.11n-protocol-based wireless video interphone system. Specifically, a door phone and an indoor unit of a video interphone are connected to an 802.11n wireless access point in a wireless way, and the wireless access point is connected into a wired community network. The wireless video interphone system provided by the invention is based on an institute of electrical and electronic engineers (IEEE) 802.11n protocol, has the characteristics of high transmission rate and long transmission distance, and can satisfy the distance needs of high-rise buildings of a community and the audio and video data transmission bandwidth needs of the video interphone. The wireless video interphone system provided by the invention has the advantages of 1) relatively lower system implementation cost; 2) reduction in network failure probability and maintenance difficulties; 3) low influence of updating and upgrading on residents; and 4) network resource reusability and avoidance of repeated construction.
Description
Technical field
The present invention relates to a kind of wireless visible entryphone system, especially based on the wireless visible entryphone system of IEEE 802.11n agreement.
Background technology
The most analogue technique audio/video signal transmissions that adopt of video intercom doorbell in the market for saving wiring cost and complexity, generally adopt bussing technique shared line transmission signals simultaneously.Therefore, this video intercom doorbell exists poor anti jamming capability, and transmission range is short, is unfavorable for the shortcoming of sub-district centralized management.Producer has been arranged at this situation, released the digital visual entryphone that transmits based on digital audio/video collecting, compression and IP mode, realized the cell networking centralized control.But this kind system still needs complicated network layout, particularly enters the network layout behind the subscriber household, in case network goes wrong, safeguards very inconvenient.
Wireless transmission standards agreement of IEEE 802.11n is used in PC, notebook computer in a large number, and ripe chip solution is arranged.Aspect transmission rate, 802.11n rises to 300Mbps with the transmission rate of WLAN even up to 600Mbps.MIMO (multiple-input, multiple-output) is combined with OFDM (OFDM) technology, improved wireless transmission quality and transmission rate.Aspect coverage, 802.11n adopts intelligent antenna technology, by the aerial array that many groups stand-alone antenna is formed, can dynamically adjust wave beam, guarantees to allow WLAN user receive stable signal, and reduces the interference of other signal.Its coverage can expand several square kilometres to.
The present invention is directed to the problem of existing video intercom door bell and button system, a kind of wireless visible entryphone based on the 802.11n agreement has been proposed, fundamentally overcome the defective of analog-and digital-wired video intercom doorbell, utilized the Radio Transmission Technology of 802.11n agreement, had very strong practicality.
Summary of the invention
The present invention is in order to overcome the shortcoming of existing wired mode video intercom doorbell, and it is good that main purpose provides a kind of result of use, realizes lower-cost wireless visible entryphone system, and it has adaptability and autgmentability preferably.
For achieving the above object, the present invention has adopted following technical scheme: based on the wireless visible entryphone system of IEEE 802.11n agreement, be characterised in that: system comprises doorway machine, indoor set, management control center and WAP (wireless access point), and described doorway machine has audio, video data collecting unit, camera, microphone, doorbell button and loudspeaker; Affiliated indoor set audio collection unit, microphone, button and loudspeaker; Affiliated indoor set and doorway machine are provided with:
1) microcontroller after being used for the external signal that receives handled, sends data or control signal and gives other unit, makes it to operate accordingly;
2) based on the radio communication unit of 802.11n agreement,, realize the communication of each indoor set and doorway machine by inserting the WAP (wireless access point) networking;
3) audio frequency and video processing unit is realized the digitlization and the compression of analog audio-video signal, realizes the unpacking of digital audio/video packet, decompression and reduction and simulation signal;
At the bigger sub-district of area, need a plurality of WAP (wireless access point) can realize all standing of wireless signal, management control center adopts the cable LAN mode to be connected to a plurality of WAP (wireless access point), realizes centralized and unified control.Management control center is realized real-time monitoring and the record to each indoor set and doorway machine operating state, in time finds fault and maintenance.
Description of drawings
With reference to following detailed description and accompanying drawing, relevant structure that can better understand the present invention and implementation method with and purpose, feature and advantage.Structure in the accompanying drawing is as just a design example of the present invention.
Fig. 1 is the system block diagram of a kind of implementation of the present invention:
Shown in Figure 1, be based on the cable LAN design of sub-district based on the wireless visible entryphone system of 802.11n agreement, may a WAP (wireless access point) (wireless router) can satisfy the demand that signal covers for smaller sub-district, and, then need a plurality of WAP (wireless access point) to cover each resident family of whole sub-district for the larger area sub-district.Being positioned at the doorway machine of each unit building and the indoor indoor set of each resident family, all is to connect by wireless mode to enter the sub-district local area network (LAN), realizes and interconnects.Be convenient unified centralized management and maintenance, the sub-district is provided with management control center server and operation middle-end, have only the keeper just to be authorized to entrance management control centre server, check the operating state of historical record and each doorway machine, indoor set, check the state of each WAP (wireless access point), in time find network and equipment fault, keep in repair, also be responsible for accepting the emergency call request of resident family.
Embodiment
In the following detailed description, having described specific details comprehensively understands the present invention so that provide.Yet the professional and technical personnel will appreciate that the present invention also can implement with other similar details.
Accompanying drawing 1 is a kind of embodiment of the present invention:
Be based on the cable LAN design of sub-district based on the wireless visible entryphone system of 802.11n agreement, cable LAN in the sub-district is usually in housing estate development, there has been the bandwidth operator construction to finish, therefore can multiplexing existing wired Internet resources.Can satisfy the demand that signal covers for the less WAP (wireless access point) in sub-district (wireless router) of area, and, then need a plurality of WAP (wireless access point) to cover each unit building and each resident family of whole sub-district for the larger area sub-district.Being positioned at the doorway machine of each unit building and the indoor indoor set of each resident family, all is that wireless mode by the 802.11n agreement connects and enters the sub-district local area network (LAN), realizes interconnecting.
Indoor set and unit building doorway are because insert by wireless mode, saved complicated wired wiring cost, though increased the cost of wireless access part, but it is because commercial on a large scale based on the WLAN (wireless local area network) chip of IEEE 802.11n agreement, unit cost is very low, and WAP (wireless access point) can one-to-many, and the cost that on average arrives each resident family increases less.With the indoor wired wiring of user, also reduced the probability of system interference and network failure in the unit building that saves, even network failure occurs, it is indoor, very easy that maintenance and maintenance generally also need not enter resident family.
As effectively replenishing to present 3G network, WLAN (wireless local area network) based on IEEE 802.11n is the content that present bandwidth operator actively builds, be used for the existing Internet resources that the networking of wireless visible entryphone system can effective multiplexing bandwidth operator in the sub-district, realize the shared, multiplexing of hardware resource, can further reduce the realization cost.
Intellectual communityintellectualized village's safety monitoring network simultaneously, can with wireless visible entryphone system multiplexing Internet resources.Because user terminal (doorway machine and indoor set) all is a wireless mode to be connected and to enter network, the transformation and upgrade of existing sub-district are brought very big facility.Can reduce to greatest extent because the installation of visible dialogue system, upgrading to the influence of resident family's life and house wiring, for the equipment of ripe sub-district install, upgrading is highly beneficial.
Though herein declarative description certain this feature of the present invention and a kind of implementation method, for the professional and technical personnel, many modifications, replacement, variation and equivalent substitution will appear.Therefore, protection scope of the present invention is as the criterion by the scope of appended claim.
Claims (2)
1. the wireless visible entryphone system based on the 802.11n agreement comprises following core content:
1.. the indoor set of video intercom and doorway machine tap into into the sub-district cable network by 802.11n agreement WAP (wireless access point), and realize interconnecting;
2.. audio, video data passes through Network Transmission after adopting digital collection and compression;
3.. WAP (wireless access point) is by mac address filter and password double authentication mode, and the unknown wireless device of shielding inserts, and guarantees network security;
4.. concentrated management control center is set the visible dialogue system running status of whole sub-district is monitored, in time find network or equipment fault, log history audio, video data, response user's urgent call.
2. wireless visible entryphone system designed according to this invention, advantage comprises: omitted in the complicated unit building and the indoor wired wiring of user, utilize ripe commercial IEEE 802.11n wireless local area network technology, the reduction system realizes cost, has reduced the probability of network failure; Internet resources wireless and wired network money network source and bandwidth operator are multiplexing in the sub-district, and video intercom door bell and button system and sub-district safety defense monitoring system reusable Internet resources are realized a plurality of purposes of a cover network simultaneously; Convenient visible dialogue system transformation to ripe sub-district, indoor set is not subjected to the constrained of wired wire laying mode in the indoor setting of user, makes things convenient for Installation and Debugging; Trouble hunting is convenient, and wired video intercom doorbell is because building masonry wall is passed in wiring, in case the maintenance of breaking down is very inconvenient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101513025A CN102215370A (en) | 2011-06-03 | 2011-06-03 | 802.11n-protocol-based wireless video interphone system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101513025A CN102215370A (en) | 2011-06-03 | 2011-06-03 | 802.11n-protocol-based wireless video interphone system |
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| CN102215370A true CN102215370A (en) | 2011-10-12 |
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| CN2011101513025A Pending CN102215370A (en) | 2011-06-03 | 2011-06-03 | 802.11n-protocol-based wireless video interphone system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270931B2 (en) | 2014-05-05 | 2016-02-23 | Cloudtalk Llc | Intercom system utilizing Wi-Fi |
| CN108924492A (en) * | 2018-07-05 | 2018-11-30 | 广东赛翼智能科技有限公司 | A kind of wisdom visual entrance guard intercom system based on WIFI networking model |
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| CN2746685Y (en) * | 2004-11-04 | 2005-12-14 | 深圳市美格数码有限公司 | Visual intercome system based on local network |
| CN101483872A (en) * | 2007-12-31 | 2009-07-15 | 霍尼韦尔国际公司 | Defining a boundary for wireless network using physical access control systems |
| CN101488896A (en) * | 2008-01-18 | 2009-07-22 | 深圳市格林威视科技开发有限公司 | Wireless access point and constructed MESH network |
| CN101533553A (en) * | 2008-03-14 | 2009-09-16 | 深圳市华威世纪科技发展有限公司 | Intelligent data acquisition server |
| CN101600117A (en) * | 2008-06-03 | 2009-12-09 | 姚国略 | Multimedia wireless transmission system |
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2011
- 2011-06-03 CN CN2011101513025A patent/CN102215370A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746685Y (en) * | 2004-11-04 | 2005-12-14 | 深圳市美格数码有限公司 | Visual intercome system based on local network |
| CN101483872A (en) * | 2007-12-31 | 2009-07-15 | 霍尼韦尔国际公司 | Defining a boundary for wireless network using physical access control systems |
| CN101488896A (en) * | 2008-01-18 | 2009-07-22 | 深圳市格林威视科技开发有限公司 | Wireless access point and constructed MESH network |
| CN101533553A (en) * | 2008-03-14 | 2009-09-16 | 深圳市华威世纪科技发展有限公司 | Intelligent data acquisition server |
| CN101600117A (en) * | 2008-06-03 | 2009-12-09 | 姚国略 | Multimedia wireless transmission system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270931B2 (en) | 2014-05-05 | 2016-02-23 | Cloudtalk Llc | Intercom system utilizing Wi-Fi |
| CN108924492A (en) * | 2018-07-05 | 2018-11-30 | 广东赛翼智能科技有限公司 | A kind of wisdom visual entrance guard intercom system based on WIFI networking model |
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Application publication date: 20111012 |