CN103905791A - Online multi-view linkage visual talk-back system and method - Google Patents
Online multi-view linkage visual talk-back system and method Download PDFInfo
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- CN103905791A CN103905791A CN201410104985.2A CN201410104985A CN103905791A CN 103905791 A CN103905791 A CN 103905791A CN 201410104985 A CN201410104985 A CN 201410104985A CN 103905791 A CN103905791 A CN 103905791A
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Abstract
The invention provides an online multi-view linkage visual talk-back method and system. The system comprises a central control concentrator, a doorway host, an indoor extension, a camera and a detector. The central control concentrator is connected with the doorway host and the indoor extension through a network cable, audio and video data communication of the host and the extension is built, the camera is connected with the central control concentrator through a network line, and video data are achieved by means of a balance transmission mode. The central control concentrator serves as a kernel, control equipment provides a video input interface, an audio input interface, a switch signal input interface and the like to the outside, and the concentrator is simultaneously connected with the indoor extension, the doorway host, the multi-path analog camera and the multi-path detector. By means of the analog control technology, seamless connection of the online multi-view linkage visual talk-back system and an original monitoring system is achieved. Due to the fact that an audio off-hook is separated from the video off-hook, online manual video polling query control and intelligent image selection are achieved, the visual range is greatly enlarged, and the system is simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to video intercom field, relate in particular to a kind of online visible dialogue system and method for linking from various visual angles.
Background technology
The video that the general mode that adopts single doorway main frame and indoor unit to combine of visible dialogue system realizes visitor is checked and converses, conventional visualization intercom system is because doorway host monitor direction is fixed, and visual range is limited, visitor's height or the position of standing do not have in monitoring range, indoor owner cannot see access personnel and periphery situation clearly at all, causes potential safety hazard.For guaranteeing perimeter security, the uniform setting video watch-dogs such as more building, villa, but due to the special monitor terminal of needs, need to be equipped with special messenger monitors, and to personal user, this is unpractical, for common household resident family, simultaneously and separate type ground usage monitoring and video doorbell 2 overlap above safe and intelligent product, bring inconvenience; For partial digitized visible dialogue system, can realize and the image of digital camera is passed to indoor equipment check, but so just have that cost is high, poor stability, poor compatibility, cannot link online and the problems such as analysis and Control.
Summary of the invention
One of the technical problem to be solved in the present invention, provides a kind of online visible dialogue system that links from various visual angles, to improve system visual range, reduce production cost, to reduce difficulty of construction.
For one of solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of online various visual angles intercom system that links, comprises and in one, controls hub, a doorway main frame, indoor unit, a plurality of analog video camera and an a plurality of detector; Described indoor unit and doorway main frame are respectively equipped with control switch.
Described middle control hub connects with doorway main frame, indoor unit by netting twine, set up master, the audio frequency of extension set, video data communication, described video camera connects with middle control hub by netting twine, and video data adopts balance transmission pattern to realize, and described detector and middle control hub connect.
Two of the technical problem to be solved in the present invention, provides a kind of online video intercom method that links from various visual angles, to improve system visual range, reduce production cost, to reduce difficulty of construction.
For solving two of above technical problem, the present invention by the following technical solutions:
A kind of online intercommunication method that links from various visual angles, in the online various visual angles interlock intercom system that described method applies to comprise middle control hub, doorway main frame, indoor unit, video camera, detector, the mode that this employing audio frequency, video off-hook separate, realize multi-channel video access and control and the mechanism switched, comprise the steps:
Under step 1, the normal holding state of system, monitor each road triggering port by middle control hub and whether have association requests instruction, port comprises doorway host computer control switch port, indoor unit control switch port, detection port, and request instruction comprises doorway main frame call request instruction, indoor unit listen request instruction, indoor unit Switch Video request instruction, probe requests thereby instruction etc.;
After step 2, doorway main frame call request are sent, system is sent ringing instruction by middle control hub to indoor unit;
Step 3, middle control hub receive the probe requests thereby instruction that detection port is sent, and according to video port reaction type intelligence handover mechanism, select video monitoring access interface, and set up indoor unit video display channel, carry out timing control simultaneously;
After step 4, doorway main frame call request are sent, system is sent ringing instruction by middle control hub to indoor unit;
Step 6, system receive after the instruction of the request unblanked, on-hook request or overtime prompting, finish the data transmission of audio frequency, video;
Further, the mode that described method adopts audio frequency, video off-hook to separate refers in visible dialogue system call process, and the Voice & Video after separating is carried out to Synchronization Control, realizes multi-channel video access and control and the mechanism switched;
Further, in described step 2, after alarm command is sent, indoor unit sends sound, light, video interlink early warning signal;
Further, described in step 3, reaction type intelligence handover mechanism refers to according to the mode of environmentally sensitive access, by timing control and priority control, come first-selected video and parameter that intelligent selection video intercom is called out, and parameter adjustment result is submitted to port controlling program, complete data feedback closed loop;
Further, send after ring at indoor unit, the operation that system can proceed to is: 1, answer and set up video calling; 2, manual switchover video, carries out video poll;
Further, indoor unit is answering, when any operation such as manual switchover video, and system all will maintain the signal of voice-grade channel.
Tool of the present invention has the following advantages: the present invention, due to the mode that adopts audio frequency, video off-hook to separate, in video call process, realizes multi-channel video access, online manually video polling system, greatly improves visual range; According to the interrelational form of environmentally sensitive access, to feed back the first-selected video of setting mode intelligent selection video intercom calling, the control of parameter, realize Intelligent Selection figure; Indoor unit, in the time receiving external environment condition transducing signal, is realized automatic sound, light, video interlink forewarn and mechanism; Adopt analog control technique, realize and original supervisory control system slitless connection, improve stability, compatibility.The present invention is simple in structure, low cost of manufacture.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is system logic structure figure of the present invention.
Fig. 2 is system control flow chart of the present invention.
Fig. 3 is video port switching principle block diagram of the present invention.
Fig. 4 is audio frequency of the present invention, Video sync control schematic diagram.
Embodiment
As shown in Figure 1, online various visual angles interlock intercom system of the present invention comprises in one controls hub, a doorway main frame, indoor unit, a plurality of analog video camera and an a plurality of detector, and indoor unit and doorway main frame are respectively equipped with control switch; Described middle control hub connects with doorway main frame, indoor unit by netting twine UTP-5, sets up master, the audio frequency of extension set, video data communication, and described video camera connects with middle control hub by netting twine UTP-5, and described detector connects with middle control hub.
Based on online various visual angles interlock intercom system of the present invention, the present invention also provides a kind of online intercommunication method that links from various visual angles, and as shown in Figure 2, the inventive method comprises the steps:
Under step 1, the normal holding state of system, monitor each road triggering port by middle control hub and whether have association requests instruction, port comprises doorway host computer control switch port, indoor unit control switch port, detection port, and request instruction comprises doorway main frame call request instruction, indoor unit listen request instruction, indoor unit Switch Video request instruction, probe requests thereby instruction etc.;
Step 2, middle control hub monitor after the probe instructions of detection port, and middle control hub sends alarm command to indoor unit, and indoor unit sends sound, light, video interlink early warning signal after receiving alarm command;
Step 3, middle control hub receive the probe requests thereby instruction that detection port is sent, according to the interrelational form of environmentally sensitive access, by the priority control of timing control and interference request, first-selected video and the parameter of calling out with the mode intelligent selection video intercom of video port feedback, realize video port intelligence and switch, and set up indoor unit video display channel;
After step 4, doorway main frame call request are sent, system is sent ringing instruction by middle control hub to indoor unit, indoor unit sends ring, and now, the operation that system can receive is: answer and set up video calling or manual switchover video and carry out video poll; Described method, the mode that adopts audio frequency, video off-hook to separate, realizes in visible dialogue system call process, multi-channel video access and control and the mechanism switched; Indoor unit is answering, when any operation such as manual switchover video, and system all will maintain the signal of voice-grade channel;
Step 6, system receive after the instruction of the request unblanked, on-hook request or overtime prompting, finish the data transmission of audio frequency, video.
Described video port switches specific implementation as shown in Figure 3: A1～A4 represents, under standby detecting state, automatically to trigger by sensor signal the video port handoff procedure that detection port causes; B1～B5 is illustrated in the situation of normal video demonstration, disturbs the priority control procedure of request; C1～C3 represents the video port handoff procedure being caused by indoor diverter switch; D1～D3 represents the video switch process being caused by doorway challenge switch; E1～E3 represents to submit rule adjustment program to by feedback data, and port controlling parameter is adjusted.
A1: under standby detecting state, when transducer receives outer signals request first, sensor signal triggers detection port, request instruction is sent to middle control hub and carry out data processing and control;
A2: (default relevant parameter is the associated ports matched data of planning at the equipment initial stage, by ports-settings priority level, as X1, X2, X3 detection port associated video port Y1 according to port numbers, default relevant parameter; X4, X5 associated video port Y2 etc.) and the follow-up comprehensive parameters being corrected;
A3: according to predefined delay data (as 30 seconds), and rule correction time parameter, carry out standby detecting state in timing control processing section;
A4: control video port is opened, closure, guarantees the noiseless transmission of video data, in the time that video port is all closed, system enters standby detecting state;
B1: in the situation that normal video shows, in the time having new transducing signal request, form in new interference request instruction arrival and control hub, and be required to process;
B2: disturb request instruction first to carry out priority analysis, if when same associated video port, maintain port controlling and control in time data, be not for further processing, otherwise carry out priority ratio with current detection port, when disturbing the port grade of request instruction higher than working as front port, enter next step and control, otherwise still keep port to show;
B3, B4, B5: the interference request instruction that all represents higher level transfers the instruction of port switching controls to, submit port numbers to;
C1, D1: doorway main frame and indoor unit all provide external touch switch, for receiving the manual control command of indoor set extension set, doorway main frame calling control command;
C2, D2: control command is highest level detection port, while entering preferential control flow, can end all ongoing inferior grade port commands immediately;
C3, D3: point to video switch instruction, and accept the instruction that current control port is new, the time refreshes by 30s counting;
E1: continue to collect each road port interfere information, comprise interval time, port numbers, particularly the port data of indoor unit diverter switch;
E2: submit the feedback data of collecting to rule adjustment program, port controlling parameter is adjusted.Tuning process is take timing parameter, class parameter as corrected parameter, and the variable that can affect parameter value comprises: sensing port interval time, duration, highest port duration, duration port the longest or that the most frequently switch etc.;
E3: submit parameter adjustment result to port controlling program, complete data feedback closed loop.
As shown in Figure 4, shown in audio frequency, Video sync control theory diagram: A1～A4 represents that doorway main frame receives the process that call request is reacted to indoor unit; B1～B4 represents video control implementation procedure; C1～C6 represents audio frequency control implementation procedure; D1～D4 represents that system, in switching doorway main frame video, keeps the control procedure of voice-grade channel; The system that represents E1～E5 realizes the process of manual switchover video port.
A1: doorway main frame receipt of call request;
A2: doorway main frame MCU is controlled hub during call request is submitted to;
A3: middle control hub is analyzed indoor unit state, in the time that indoor unit is in holding state, submits ring request to;
A4: when indoor unit ring, middle control hub is submitted synchronous ring request to doorway main frame;
A5, A6: indoor unit, doorway main frame drive audio driven simultaneously, send ringing tone;
B1, B2: according to video port switching principle, middle control MCU analyzes and selects external video Gather and input port;
B3: middle control hub is submitted indoor unit Switch Video port parameter to;
B4: indoor unit drives video display driver, shows the video port image switching;
C1: indoor unit is answered instruction;
C2: answer instruction and send to middle control hub;
C3, C4: middle control hub is opened doorway main frame voice bidirectional passage, and drive;
C5, C6: middle control hub is opened indoor unit sound duplex channel, with doorway main frame voice intercommunication;
D1, D2, D3, D4: system is switched doorway main frame video, and keeps current voice-grade channel;
E1: indoor unit receives user and switches poll instruction;
E2: middle control hub is sent in the instruction of video poll, gathers current video port;
E3: middle control hub switches next video port;
E4: middle control hub submission Switch Video port are to indoor unit;
E5: indoor unit drives video to show, completes new video switch work.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present invention; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (7)
1. the online intercom system that links from various visual angles, comprise middle control hub, doorway main frame, indoor unit, analog video camera and detector, indoor unit and doorway main frame are respectively equipped with control switch, it is characterized in that: described middle control hub is by netting twine and doorway main frame, described analog video camera connects with middle control hub by netting twine, and described detector connects with middle control hub; Described analog video camera and detector are established and are equipped with a plurality of and visual angle is different.
2. the online intercommunication method that links from various visual angles, described method applies in online various visual angles interlock intercom system as claimed in claim 1, it is characterized in that: the mode that described method adopts audio frequency, video off-hook to separate, realize multi-channel video access and control and the mechanism switched, comprise the steps:
Whether under step 1, the normal holding state of system, monitoring each road triggering port by middle control hub has association requests instruction, and port comprises doorway host computer control switch port, indoor unit control switch port and detection port;
Step 2, middle control hub monitor after the probe requests thereby instruction of detection port, send alarm command to indoor unit;
Step 3, middle control hub, according to video port reaction type intelligence handover mechanism, are selected video monitoring access interface, and are set up indoor unit video display channel, carry out the timing control of video port demonstration simultaneously and disturb the priority control of asking;
After step 4, doorway main frame call request are sent, system is sent ringing instruction by middle control hub to indoor unit;
Step 5, system continue detecting detection port, when without probe instructions signal, switch doorway main frame video, and on indoor unit, show corresponding video, otherwise, according to video port reaction type intelligence handover mechanism, the camera video signal of handoff association, and be presented on indoor unit;
Step 6, system receive after the instruction of the request unblanked, on-hook request or overtime prompting, finish the data transmission of Voice & Video.
3. the online intercommunication method that links from various visual angles of one according to claim 2, it is characterized in that: the mode that described audio frequency, video off-hook separate refers in visible dialogue system call process, Voice & Video after separating is carried out to Synchronization Control, realize multi-channel video access and control and the mechanism switched.
4. the online intercommunication method that links from various visual angles of one according to claim 2, is characterized in that: in described step 2, after alarm command is sent, indoor unit sends sound, light, video interlink early warning signal.
5. the online intercommunication method that links from various visual angles of one according to claim 2, it is characterized in that: in described step 3, described reaction type intelligence handover mechanism refers to according to the mode of environmentally sensitive access, by the priority control of described timing control and interference request, come first-selected video and parameter that intelligent selection video intercom is called out, and parameter adjustment result is submitted to port controlling program, complete data feedback closed loop.
6. the online intercommunication method that links from various visual angles of one according to claim 2, it is characterized in that: in described step 4, receiving ringing instruction and sending after ring at indoor unit, the operation that system is carried out is: answer and set up video calling or manual switchover video, carry out video poll.
7. the online various visual angles of the one according to claim 2 intercommunication method that links, is characterized in that: described indoor unit is answering, when any operation such as manual switchover video, and system all will maintain the signal of voice-grade channel.
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