CN101083575A - Distributed speech communication system and network connection method for residential district - Google Patents
Distributed speech communication system and network connection method for residential district Download PDFInfo
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Abstract
The invention relates to distributivity phoneme communication system and network connecting method applied in residential district. It includes management layer, middle layer, and user layer. The management layer includes center monitoring controlling main engine and supervisor used to monitor, control, and supervise the whole system. The middle layer includes doorway machine used as assistant dividing management unit. The user layer includes user subset used to interact with the user. The system sets coding management mechanism used storey as unit, the first map used to store doorway machine information in server and supervisor, and the second map used to store the subset information in the doorway machine. The invention has the advantages of low cost, convenient maintenance operation, strong function and expansibility.
Description
Technical field
The invention belongs to fields such as Based Intelligent Control, computer application, relate to community management and service, safe living environment is provided, community information service easily, community information management efficiently.
Background technology
Along with improving constantly of living standard, people also improve greatly to the requirement of living environment, and are particularly outstanding to the requirement of information service and safety precaution.The core of national housing intelligent such as the U.S., Europe is family's flat, be called home automation, the product that many maturations are arranged, the integrated home system IHS of Eureka in the Smart House system that releases as the X-10 of X-10CORP ' S company series domestic automation system, American family CIAM, Japanese Super HomeBus System, Europe etc.But these domestic automation systems have a common characteristic: do not constitute network, only be fit to single family and use.And China city dweller's living environment mostly has the notion of sub-district, and hundreds and thousands of family residents are often arranged in the sub-district, and the intellectuality of living is in interior sub-district intellectuality together with home unit.China's individual cells has been installed some professional systems (such as security system), but on realizing, basically be the integrated of external product, often be that several families The foreign chicken products is integrated in the system, owing to can't know each product inherent mechanism, this integrated very difficult realization " seamless link ", and system cost height, efficient are low.See with regard to present circumstances, what residential quarters were the most generally selected for use is intercom system, but external product is not generally considered communication between the multi-user, though distributed sound mechanics of communication and tremendous development has been arranged towards the speech communication technology of Internet, but be not at the sub-district special applications, can not be applied directly to cell system, these integrated systems can't provide the digital speech communication function.
Network architecture is one of core of residential quarters comprehensive intelligent system, and the communication mechanism that accounts for main flow is based on the universal serial bus of RS485, and the scale of this communication mechanism, efficient, real-time, flexibility etc. all are restricted.Field bus technique has begun to enter China, if but adopt field bus technique fully, product and system cost will increase greatly.Adopt the cell system of above two kinds of communication mechanisms such as the support that need provide speech communication, all need to lay special line, drop into greatlyyer, lay and to be inconvenient to revise, safeguard after finishing.Though wireless technology has obtained certain applications, the cost height, jitter is disturbed by situations such as weather easily.
Summary of the invention
The object of the present invention is to provide a kind of distributed speech communication system and method for connecting network that can be applicable to residential quarters, than prior art, cost is low, installation and maintenance are easy to operate, extensibility is strong.
For achieving the above object, solution of the present invention is:
Can be applicable to the distributed speech communication system of residential quarters, comprise management level, intermediate layer and client layer;
Management level comprise CSRC main frame and supervisor, are responsible for the monitoring and the management of whole system;
The intermediate layer comprises doorway machine, as the auxiliary division management unit of management area;
Client layer comprises subscriber computer, is responsible for mutual with resident family.
Further, being is the stratification compartmentalization network configuration of unit area with Lou Dong.
Described CSRC main frame is responsible for handling the various system datas that send up from user side as the control maincenter of whole system, and the functions such as management, backup and printing of data also are provided in addition; The CSRC main frame does not provide voice service, but as data backup server, for the foundation of voice link is offered help;
Supervisor is carried out and CSRC main frame similar functions, and voice call function is provided simultaneously.
A building doorway machine of use is assisted management, is arranged on the porch of Lou Dong, is responsible for gate inhibition and conversation; The visitor can pass through doorway machine calling party or keeper; Doorway machine also is responsible for it is had jurisdiction over the maintenance of subscriber computer network configuration as network service Central Terminal Station.
Client layer comprises subscriber computer, and as the control of the minimum in sub-district unit, it is indoor to be installed in resident family;
Doorway machine and all subscriber computers in building are formed an area unit, and are corresponding with the management of residential district mechanism of reality.
The method for connecting network of described system, default are the encode management mechanism of unit with Lou Dong, and one-level, secondary mapping table are set, and the one-level mapping table is preserved doorway machine information, is kept in server and the supervisor; The secondary mapping table is preserved this building subscriber computer information, is kept in the doorway machine; Mapping table all has backup in server.
Further, the mode of searching the IP address contains: broadcasting is searched, hierarchical search and inquiry CSRC main frame.
Authority setting is to have only supervisor to have authority to inquire about the IP address of all subscriber computers and doorway machine, and doorway machine only has authority to inquire about the IP address of this interior subscriber computer, and subscriber computer only allows the call manager machine.
When new equipment access network is arranged, new equipment uses broadcast mode to send access information to local area network (LAN), and request ID, IP information are after monitoring host computer receives this information, earlier whether this equipment of inquiry is registered in main frame, if registered then distribute ID, the IP of this equipment; If registration then earlier is not that this equipment distributes an acquiescence ID and IP automatically, and in monitoring host computer end and user side prompting, handles this problem by user or keeper.
Automatically the equipment wheel of having registered in the network is followed checking by monitoring host computer.
After the transmitting terminal primary speech signal A/D sampling, via the speech chip compression, by the speech data after the ethernet network transmission compression.Receiving terminal receives speech data, via the speech chip decompress(ion), by D/A reduction voice signal.
The handoff procedure of system when initiatively making a call: off-hook is transferred under call state, the opposite call state on-hook or calls out overtime the other side's no response system and is transferred to idle condition again automatically under the idle condition; Receive under the call state after the other side's off-hook is replied to be transferred to talking state, either party on-hook system is returned to idle condition again behind the end of conversation; The stateful switchover process of passive calling is similar, and system is changed over to by call state by calling system under idle condition, if off-hook automatically switches to talking state, and system's not busy state that makes the return trip empty that automaticallyes switch if opposite jingle bell is overtime.
Based on Ethernet, be applied to the distributed speech communication system architecture and the management method of residential quarters.Be open on the overall system, the subsystem of each layer also is open.System is easy to and other system interconnect; Can freely increase and decrease linkage unit on the subsystem of arbitrary level, the increase and decrease process is " isolating ", that is to say, increases and decreases a linkage unit, and the software and hardware of system need not change, and system can discern, dispose the linkage unit of increase and decrease automatically.(with one deck or different layers) can set up the bidirectional data communication link between any two equipment of internal system.
The ID-IP Address Mapping of multistage fusion.Confession broadcasting is searched, classification is searched and inquire about three kinds of inquiry modes of CSRC main frame.This inquiry mechanism has realized the network redundancy function indirectly, and network node can can't not connect because of the fault of some important node (such as CSRC main frame).
The user management and the network self-diagnosis method that are fit to the residential quarters application circumstances.System can discern the equipment machine of new interpolation enter the internet automatically and enroll, identifies automatically the equipment machine of generation communication failure and with its soft rejecting from network, can discern also re-accessing network automatically after its fault is got rid of.
This patent is distributed sound communication and the network connection system of using based on residential quarters.
Distributed sound communication and the network connection system architecture and the connection mechanism of residential quarters have been proposed to be applied to.System physically is divided into three layers by sub-district, Lou Dong, family: management level, intermediate layer and client layer at sub-district actual management mode.Management level are the management and the control centre of sub-district, comprise CSRC main frame and supervisor; The intermediate layer is the unit marking of a building area dividing, comprises doorway machine (a general building be a unit area, a doorway machine is installed); Client layer is the terminal that is installed in the resident family, comprises subscriber computer.Be that native system is three-decker, is the stratification compartmentalization network configuration of unit area with Lou Dong.Be open on the overall system, easy and other system interconnection; Arbitrary subsystem allows freely to increase and decrease linkage unit, and the increase and decrease process possesses " isolatism ", promptly increases and decreases a linkage unit, it goes without doing any modification of the software and hardware of system, and the unit of increase and decrease can be discerned and dispose to equipment automatically.(with layer or different layers) all can set up data link between any two equipment of system, supports various topological structures and communication media, and linkage unit and media independent, i.e. the change of communication media and topological structure, and the software of linkage unit need not change.
Invented with the security protection be basic function, comprise functions such as full duplex voice call, public information service in interior activating business.Original voice signal is carried out necessary compression after by sampling, filtering, A/D conversion, speech data is changed into the audio stream that is fit to Network Transmission, voice module is reduced by the voice messaging of similar opposite processing procedure with the other side to received audio stream, and has solved the echo problem in the digital intercommunication well.
Proposed the mapping ruler of ID of resident family and network IP, and local mapping table has been left among the E2PROM.For improving Serial E 2PROM access speed and web services response speed, the method of hierarchical storage management that propose to adopt a kind of ID-IP mapping table to be having realized fast mapping and the conversion between telephone number and IP address, and realized the network service of ID-IP mapping table hierarchical search on this basis.Management and maintenance for ease of voice link, specially be that at the beginning of each link establishment it realizes a link maintenance example, in the whole life of this voice link, can deal carefully with the concrete affairs of voice link according to current talking state (idle, calling, called out and converse) by this example.
Invent and adopted the dynamic memory network configuration parameters, revised the method for upgrading preassignment network configuration memory block after the parameter synchronously, realized the dynamic-configuration of network parameters such as IP address and subnet mask.
The user management and the network self-diagnosis method of suitable residential quarters application circumstances have been invented.System can discern the equipment machine of new interpolation enter the internet automatically and enroll, identifies automatically the equipment machine of generation communication failure and with its soft rejecting from network, can discern also re-accessing network automatically after its fault is got rid of.
The present invention compared with prior art has following advantage:
(1) based on ethernet technology.Adopt the unified network platform and communication protocol, realized the seamless link of information between each layer; Compare traditional cell system, do not need to lay any extra circuit, only need the Ethernet used always, can realize the message transmission of native system, be convenient to control cost.
(2) digitized voice transfer.Adopted digitized voice transfer mode in the management of sub-district, the analogue transmission mode than traditional can improve transmission range, improves voice quality, has simplified network layout, and voice transfer does not need to set up in addition special circuit, convenient construction and maintenance.
(3) information broadcast function.Control centre can send the text broadcast information in the cell range.
(4) encode management mechanism.Setting is the encode management mechanism of unit with Lou Dong, and one-level, secondary mapping table are set, and conveniently is used to inquire about each subset information.The one-level mapping table is preserved doorway machine information, is kept in server and the supervisor; The secondary mapping table is preserved this building subscriber computer information, is kept in the doorway machine.Mapping table all has backup in server.
(5) IP address lookup mechanism.Use three kinds of inquiry modes to guarantee that the IP address can be by correct searching: broadcasting is searched, hierarchical search and inquiry CSRC main frame.Have only supervisor to have authority to inquire about the IP address of all subscriber computers and doorway machine, doorway machine only has authority to inquire about the IP address of this building interior subscriber computer, and subscriber computer only allows the call manager machine.
(6) network control node plug and play.System follows open by design, and intermediate layer and client layer subsystem can increase and decrease linkage unit arbitrarily, and system can discern, dispose the linkage unit of increase and decrease automatically.
(7) voice reach 16bit high definition tonequality, 8KHZ sample rate; Voice module is low in energy consumption, 8KSPS mode of operation＜120mW, standby mode＜1mW; Compress speech has adopted the compression algorithm of AMBE, and audio stream compression service real-time, full duplex (compression/de-compression) is provided, and compression ratio reaches 1/8; Have the error check of voice data forward direction function, can carry out from dynamic(al) correction the finite quantity mistake that is occurred in the speech digit passage; Automatically echo is eliminated, and can eliminate the Echo in the voice automatically.
Take all factors into consideration in conjunction with cost, efficient, flexibility etc., this patent has proposed the distributed language traffic model and the network system based on Ethernet to realize that residential quarters digitize voice communication is a purpose.In the existing or newly-built sub-district, laid broadband networks mostly, therefore, native system need not to set up any dedicated network, the dual mode before comparing, and cost is low, convenient for installation and maintenance, extensibility is strong.
Present technique takes into full account the actual management pattern of residential quarters, has designed the distributed network architecture of a kind of stratification, compartmentalization, makes things convenient for actual management.Made full use of the advantage of embedded technology, the function height is integrated, unified standard, and attended operation is simple, also can grasp operation and using method in a short time even without the personnel of contacted professional technique.
Description of drawings
Fig. 1 is a system configuration schematic diagram of the present invention.
Fig. 2 is an ID-IP table storage schematic diagram of the present invention.
Fig. 3 is ID-IP address lookup signal of the present invention.Dotted line A, B, C have represented respectively promptly that the broadcasting in the IP address inquiring method is searched, hierarchical search, inquiry CSRC main frame.
Fig. 4 is a voice module structural representation of the present invention.
Fig. 5 is an audio call status change schematic diagram of the present invention.
Embodiment
(1) see also Fig. 1, an embodiment of the present invention comprises three-decker, is to be the stratification compartmentalization network configuration of unit area with Lou Dong.Three-decker is respectively management level, intermediate layer and client layer.
Ground floor is that management level comprise CSRC main frame and supervisor, is responsible for the monitoring and the management of whole system.The CSRC main frame mainly is responsible for handling the various system datas that send up from user side as the control maincenter of whole system, and the functions such as management, backup and printing of data also are provided in addition.The CSRC main frame does not provide voice service, but as data backup server, for the foundation of voice link is offered help.
Supervisor function and CSRC main frame are similar, but voice call function is provided.
As system core processing unit, supervisor and CSRC main frame are undertaken the management and the maintenance of whole system jointly, the CSRC main frame mainly provides functions such as data backup, network operation, database service, supervisor mainly provides simple network operation and voice call service, both complement one another at function, and the data necessary backup is provided each other.CSRC main frame and supervisor are responsible for the processing of data jointly, and just monitoring host computer and supervisor are had one's own work to do on function, stress difference: supervisor mainly is responsible for call function, subsidiary part prompting and record; What the CSRC main frame then mainly was responsible for data focuses on and provides standby network data services so that ID-IP to be provided inquiry service.
The second layer is the intermediate layer, comprises doorway machine, as the auxiliary division management unit of management area.Next building of ordinary circumstance only uses a doorway machine to assist management, is installed in the porch of Lou Dong, is responsible for gate inhibition and conversation.The visitor can pass through doorway machine calling party or keeper.Doorway machine also is responsible for it is had jurisdiction over the maintenance of subscriber computer network configuration as network service Central Terminal Station.
The 3rd layer is client layer, comprises subscriber computer, and as the minimum in sub-district control unit, it is indoor to be installed in resident family, is responsible for mutual with resident family.
Doorway machine and all subscriber computers in building are formed an area unit, and are corresponding with the management of residential district mechanism of reality.
(2) Fig. 2 is ID-IP table storage schematic diagram.Default is the encode management mechanism of unit with Lou Dong, and one-level, secondary mapping table are set, and conveniently is used to inquire about each subset information.The one-level mapping table is preserved doorway machine information, is kept in server and the supervisor; The secondary mapping table is preserved this building subscriber computer information, is kept in the doorway machine.Mapping table all has backup in server.
(3) Fig. 3 is the signal of ID-IP address lookup.Use three kinds of inquiry modes to guarantee that the IP address can be by correct searching: broadcasting is searched, hierarchical search and inquiry CSRC main frame.
A. broadcasting is searched.Each equipment machine in the local area network (LAN) all has unique one group of telephone number (ID number) and IP address.The inquiry main frame sends the limited broadcasting (the IP address is 255.255.255.255) that has destination host telephone number to be checked (9 ID number) information in local area network (LAN), this ID number host receives that taking out own IP address behind this query requests broadcast packet from FLASH sends to the inquiry main frame, and then inquiring about main frame is that destination address sends link and sets up and ask with this IP address.
B. hierarchical search method.This method is only applicable to supervisor.Each equipment machine is only preserved and the map addresses information of contacting directly the equipment machine is arranged oneself, supervisor has been preserved the ID-IP map addresses information (one-level mapping table) of all doorway machine of having jurisdiction over, doorway machine has been preserved the ID-IP map addresses information (secondary mapping table) of all subscriber computers of having jurisdiction over, and subscriber computer has just been preserved the ID-IP map addresses information of affiliated doorway machine and supervisor.When supervisor needs inquiring user machine IP address, earlier from the doorway machine ID-IP mapping table that this organizational security is deposited under this subscriber computer of inquiry the IP address of doorway machine send inquiring user machine IP Address requests to this doorway machine, doorway machine receives after the query requests IP address and the return address information of this subscriber computer of inquiry from subscriber computer ID-IP mapping table, and supervisor obtains initiating link to this subscriber computer again after the response of doorway machine and sets up request.
C. inquire about the CSRC main frame.I.e. IP address of from the ID-IP map addresses summary table that central monitoring host computer is preserved, searching target machine.
The authority explanation: have only supervisor to have authority to inquire about the IP address of all subscriber computers and doorway machine, doorway machine only has authority to inquire about the IP address of this interior subscriber computer, and subscriber computer only allows the call manager machine.
(4) equipment plug and play processing mode: when new equipment access network is arranged, new equipment uses broadcast mode to send access information to local area network (LAN), request ID, IP information, after monitoring host computer receives this information, earlier whether this equipment of inquiry is registered in main frame, if registered then distribute ID, the IP of this equipment.If not having registration then earlier is that this equipment distributes one to give tacit consent to ID and IP (ID-IP is all not identical for acquiescence, doorway machine row distribution again under server end is judged) automatically, and in monitoring host computer end and user side prompting, handles this problem by user or keeper.
(5) network self-diagnosis processing mode: monitoring host computer follows checking to the equipment wheel of having registered in the network automatically, and as verifying an equipment machine every 1 second, when having 200 equipment machines, per 200 second wheels of monitoring host computer follow primary network.When certain equipment machine damaged or break away from network, monitoring host computer can find that in 200 seconds this is unusual.
(6) Fig. 4 is the voice module structural representation.AMBE-2000 is a compress speech chip of DVSI company, and A/D and D/A have adopted the TLV320AIC1O chip of TI company.After the transmitting terminal primary speech signal A/D sampling, via the speech chip compression, by the speech data after the ethernet network transmission compression.Receiving terminal receives speech data, via the speech chip decompress(ion), by D/A reduction voice signal.Adopt this processing mode, speech processes has reached following parameter: 16bit high definition tonequality; The 8KHZ sample rate; Low-power consumption, 8KSPS mode of operation＜120mW, standby mode＜1mW; In real time, the audio stream compression service of full duplex (compression/de-compression), compression ratio reaches 1/8; Have the error check of voice data forward direction function (FEC, Forward ErrorCorrection), can carry out from dynamic(al) correction the finite quantity mistake that is occurred in the speech digit passage; Automatically echo is eliminated; High real-time.
(7) Fig. 5 is an audio call status change schematic diagram of the present invention.Various states that communication process experienced and switching each other thereof.(Idle) off-hook is transferred under call state (Calling), the opposite call state on-hook or calls out overtime the other side's no response system and is transferred to idle condition again automatically under the idle condition; Receive under the call state to be transferred to talking state (Talking) after the other side's off-hook is replied, either party on-hook system is returned to idle condition again behind the end of conversation.It more than is the handoff procedure of system when initiatively making a call, the stateful switchover process of passive calling is also similar, system is changed over to by call state (Being Called) by calling system under idle condition, if off-hook automatically switches to talking state, system's not busy state that makes the return trip empty that automaticallyes switch if opposite jingle bell is overtime.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (12)
1, can be applicable to the distributed speech communication system of residential quarters, it is characterized in that:
Comprise management level, intermediate layer and client layer;
Management level comprise CSRC main frame and supervisor, are responsible for the monitoring and the management of whole system;
The intermediate layer comprises doorway machine, as the auxiliary division management unit of management area;
Client layer comprises subscriber computer, is responsible for mutual with resident family.
2, the distributed speech communication system that can be applicable to residential quarters according to claim 1 is characterized in that: be to be the stratification compartmentalization network configuration of unit area with Lou Dong.
3, the distributed speech communication system that can be applicable to residential quarters according to claim 1 is characterized in that:
Described CSRC main frame is responsible for handling the various system datas that send up from user side as the control maincenter of whole system, and the functions such as management, backup and printing of data also are provided in addition; The CSRC main frame does not provide voice service, but as data backup server, for the foundation of voice link is offered help;
Supervisor is carried out and CSRC main frame similar functions, and voice call function is provided simultaneously.
4, the distributed speech communication system that can be applicable to residential quarters according to claim 1 is characterized in that:
A building doorway machine of use is assisted management, is arranged on the porch of Lou Dong, is responsible for gate inhibition and conversation; The visitor can pass through doorway machine calling party or keeper; Doorway machine also is responsible for it is had jurisdiction over the maintenance of subscriber computer network configuration as network service Central Terminal Station.
5, the distributed speech communication system that can be applicable to residential quarters according to claim 2 is characterized in that:
Client layer comprises subscriber computer, and as the control of the minimum in sub-district unit, it is indoor to be installed in resident family;
Doorway machine and all subscriber computers in building are formed an area unit, and are corresponding with the management of residential district mechanism of reality.
6, the method for connecting network of the described system of claim 1-5 is characterized in that: default is the encode management mechanism of unit with Lou Dong, and one-level, secondary mapping table are set, and the one-level mapping table is preserved doorway machine information, is kept in server and the supervisor; The secondary mapping table is preserved this building subscriber computer information, is kept in the doorway machine; Mapping table all has backup in server.
7, according to the method for connecting network of the described system of claim 6, it is characterized in that: the mode of searching the IP address comprises: broadcasting is searched, hierarchical search and inquiry CSRC main frame.
8, according to the method for connecting network of the described system of claim 7, it is characterized in that: authority setting is to have only supervisor to have authority to inquire about the IP address of all subscriber computers and doorway machine, doorway machine only has authority to inquire about the IP address of this interior subscriber computer, and subscriber computer only allows the call manager machine.
9, according to the method for connecting network of the described system of claim 6, it is characterized in that: when new equipment access network is arranged, new equipment uses broadcast mode to send access information to local area network (LAN), request ID, IP information, after monitoring host computer receives this information, earlier whether this equipment of inquiry is registered in main frame, if registered then distribute ID, the IP of this equipment; If registration then earlier is not that this equipment distributes an acquiescence ID and IP automatically, and in monitoring host computer end and user side prompting, handles this problem by user or keeper.
10, according to the method for connecting network of the described system of claim 6, it is characterized in that: automatically the equipment wheel of having registered in the network is followed checking by monitoring host computer.
11, according to the method for connecting network of the described system of claim 6, it is characterized in that: after the transmitting terminal primary speech signal A/D sampling, via the speech chip compression, by the speech data after the ethernet network transmission compression.Receiving terminal receives speech data, via the speech chip decompress(ion), by D/A reduction voice signal.
12, according to the method for connecting network of the described system of claim 6, it is characterized in that: the handoff procedure of system when initiatively making a call: off-hook is transferred under call state, the opposite call state on-hook or calls out overtime the other side's no response system and is transferred to idle condition again automatically under the idle condition; Receive under the call state after the other side's off-hook is replied to be transferred to talking state, either party on-hook system is returned to idle condition again behind the end of conversation; The stateful switchover process of passive calling is similar, and system is changed over to by call state by calling system under idle condition, if off-hook automatically switches to talking state, and system's not busy state that makes the return trip empty that automaticallyes switch if opposite jingle bell is overtime.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102594941A (en) * | 2012-02-22 | 2012-07-18 | 福建星网视易信息系统有限公司 | Method for device access and device communication in building intercom system |
| CN104484928A (en) * | 2014-12-19 | 2015-04-01 | 江阴市电工合金有限公司 | Door access security monitoring communication control system |
| CN104599384A (en) * | 2015-01-27 | 2015-05-06 | 北京天诚盛业科技有限公司 | Matching method, device and system of splitting type access control equipment |
| CN105871950A (en) * | 2015-01-21 | 2016-08-17 | 上海可鲁系统软件有限公司 | Method and system for managing industrial internet of things automatic access and data authorization |
| CN108259857A (en) * | 2018-04-10 | 2018-07-06 | 广州峰火电子股份有限公司 | A kind of two-way intercommunication integral system of video monitoring public broadcasting and its control method |
| CN113766353A (en) * | 2021-09-29 | 2021-12-07 | 深圳天地宽视信息科技有限公司 | Building intercom system and method thereof |
| CN113938922A (en) * | 2021-09-17 | 2022-01-14 | 中国联合网络通信集团有限公司 | Determination method and device for optimized cell |
| CN115550853A (en) * | 2021-06-30 | 2022-12-30 | 星络社区云物联科技有限公司 | Call management method, system, computer equipment and storage medium |
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- 2006-06-02 CN CN 200610027267 patent/CN101083575A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594941A (en) * | 2012-02-22 | 2012-07-18 | 福建星网视易信息系统有限公司 | Method for device access and device communication in building intercom system |
| CN102594941B (en) * | 2012-02-22 | 2015-06-17 | 福建星网视易信息系统有限公司 | Method for device access and device communication in building intercom system |
| CN104484928A (en) * | 2014-12-19 | 2015-04-01 | 江阴市电工合金有限公司 | Door access security monitoring communication control system |
| CN105871950A (en) * | 2015-01-21 | 2016-08-17 | 上海可鲁系统软件有限公司 | Method and system for managing industrial internet of things automatic access and data authorization |
| CN104599384A (en) * | 2015-01-27 | 2015-05-06 | 北京天诚盛业科技有限公司 | Matching method, device and system of splitting type access control equipment |
| CN104599384B (en) * | 2015-01-27 | 2018-01-30 | 北京天诚盛业科技有限公司 | Matching process, the apparatus and system of split type access control equipment |
| CN108259857A (en) * | 2018-04-10 | 2018-07-06 | 广州峰火电子股份有限公司 | A kind of two-way intercommunication integral system of video monitoring public broadcasting and its control method |
| CN115550853A (en) * | 2021-06-30 | 2022-12-30 | 星络社区云物联科技有限公司 | Call management method, system, computer equipment and storage medium |
| CN113938922A (en) * | 2021-09-17 | 2022-01-14 | 中国联合网络通信集团有限公司 | Determination method and device for optimized cell |
| CN113938922B (en) * | 2021-09-17 | 2023-06-16 | 中国联合网络通信集团有限公司 | Method and device for determining optimized cell |
| CN113766353A (en) * | 2021-09-29 | 2021-12-07 | 深圳天地宽视信息科技有限公司 | Building intercom system and method thereof |
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