CN103716528A - PTZ camera remote control system and method based on touch terminal - Google Patents
PTZ camera remote control system and method based on touch terminal Download PDFInfo
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- CN103716528A CN103716528A CN201310399868.9A CN201310399868A CN103716528A CN 103716528 A CN103716528 A CN 103716528A CN 201310399868 A CN201310399868 A CN 201310399868A CN 103716528 A CN103716528 A CN 103716528A
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Abstract
The invention discloses a PTZ camera remote control system and method based on a touch terminal. The system is composed of the touch terminal, relay nodes and a PTZ camera, and interconnection is realized through a network. According to an operation process, after the touch terminal detects the event that a user touches a screen, a related coordinate is recorded as a touch start point; after the touch terminal detects the event that the user leaves the screen, a related coordinate is recorded as a touch end point; single point touch dragging is an translation operation, and two point touch and shortening or lengthening the distance between two points is a scaling operation; a control parameter is calculated based on start point and end point coordinates; a PTZ control request is constructed and sent; a state in control is displayed; the control request is sent to the PTZ camera in a direct connection manner; the control request is sent to the relay nodes in a relay node interconnection manner; the control request is forwarded to a remote PTZ camera step by step; after the camera receives the control request, PTZ control is carried out according to the control type and the parameter; control response is constructed and is sent back to the touch terminal; and after the touch terminal receives the control response, the touch terminal stops displaying the state in control.
Description
Technical field:
The present invention relates to field of video monitoring, relate in particular to a kind of system and method for the Pan/Tilt/Zoom camera Long-distance Control based on touch control terminal.
Background technology:
Along with the development of sensor technology, Image Compression, computer technology, mechanics of communication, video monitoring obtains application widely.Video monitoring system, through the development of two more than ten years, from simulation monitoring to digital supervision, develops into current IP (internet protocol) Network Video Surveillance, and earth-shaking variation has occurred.IP technology, as a kind of mechanics of communication of basis, has incorporated the every aspect of producing and living, and increasing terminal, platform, system are supported this standard, and becoming devices interconnect field most important is also most widely used standard.
From the angle of technology, video monitoring system development is divided into three generations: the first generation, analog video supervisory control system (CCTV); The second generation: based on " PC+ multimedia card " digital video monitor system (DVR); The third generation: IP based network video monitoring system (IPVS), IP video camera (IP Camera).
In the video capture devices such as these video cameras, there are a large amount of comprehensive (upper and lower, left and right) movements of equipment support PTZ (Pan/Tilt/Zoom) The Cloud Terrace and camera lens zoom, Zoom control, can adjust more flexibly the scope of observing scene.
In recent years, mobile intelligent terminal is in IOS (the intelligent terminal operating system of U.S. Apple company), the systems such as Android (the intelligent terminal operating system of U.S. Google company), the intelligent terminal that high definition, Touch Screen be Typical Disposition of take grows up on a large scale.
WLAN (wireless local area network) (WIFI) and third generation mobile (3G) mechanics of communication have obtained tremendous development and large-scale application simultaneously, and people can be anywhere or anytime by touch-control mobile terminal access IP network.
By the terminal with touch controllable function, to possessing the operation of the IP picture pick-up device of PTZ function, can allow people, better watch the real-time scene of region-of-interest whenever and wherever possible, there is huge realistic meaning.
Summary of the invention:
For by WIFI, 3G wireless communication networks and family enterprise's network, carry out the demand of control and the use of long-range Pan/Tilt/Zoom camera whenever and wherever possible, the object of this invention is to provide a kind of system and method for the Pan/Tilt/Zoom camera Long-distance Control based on touch control terminal.
The present invention is achieved in that a kind of system and method for the Pan/Tilt/Zoom camera Long-distance Control based on touch control terminal, comprises following main process and step:
The system of described Long-distance Control: by touch control terminal, transit node, Pan/Tilt/Zoom camera, formed, and by the network interconnection;
User, by touch control terminal, carries out Long-distance Control to Pan/Tilt/Zoom camera; Touch control terminal detects after the translation and zoom operations of PTZ corresponding to the touch-control behavior of user on screen, the coordinate values relevant with terminal according to touch-control starting point, structure PTZ controls request, then PTZ is controlled to request and mails to long-range Pan/Tilt/Zoom camera by some grades of transit nodes; Pan/Tilt/Zoom camera receives that PTZ controls request, carries out the control of PTZ The Cloud Terrace according to parameter, completes the switching of scene;
Touch control terminal has two kinds of connected modes with Pan/Tilt/Zoom camera: by IP network be directly connected, through 1 to multistage transit node by IP network interconnected.
Touch control terminal: formed by terminal hardware, terminal operating system, terminal software;
Terminal hardware: formed by the screen with touch controllable function, central processing unit, memory, loudspeaker, mixed-media network modules mixed-media;
Terminal software: formed by streaming media module, video decode module, audio decoder module, Video Rendering module, audio frequency output module, control module, user's operational module; Be responsible for connecting Pan/Tilt/Zoom camera, and receive the audio-video frequency media flow data of Pan/Tilt/Zoom camera, decode, play up and export, receive user's operation requests simultaneously, this operation requests, by network destined video camera, is carried out to long-range PTZ control;
Terminal operating system: the universal intelligent terminal operating system of supporting touch control operation.
Transit node: by transfer computer hardware, transfer network operating system, transfer server software forms;
Transfer computer hardware: the general purpose computing device being formed by central processing unit (CPU), memory (RAM), disk, master control borad, mixed-media network modules mixed-media;
Transfer network operating system: for thering is the generic server operating system of network communication ability;
Transfer server software: connection management module, transit module, main control module form; Accept the access of Pan/Tilt/Zoom camera and touch control terminal, complete the work of connection between Pan/Tilt/Zoom camera and touch control terminal, data, request transfer; Between transit node, by the network interconnection, realize touch control terminal and access from a transit node, go to be controlled at the function of a plurality of video cameras that accessed on a plurality of long-range transit nodes.
Pan/Tilt/Zoom camera: formed by video camera hardware, camera operation system, camera software;
Video camera hardware: formed by main control chip, imageing sensor, image encoder, audio collection module, mixed-media network modules mixed-media, PTZ The Cloud Terrace;
Camera operation system: the embedded OS that the embedded operating system kernel of take is core;
Camera software: formed by main control module, Media Stream acquisition module, Streaming Media communication module, PTZ control module;
PTZ The Cloud Terrace: mechanical underprop or the electronic platform based on image scaling, image interception.
The Long-distance Control of touch control terminal to Pan/Tilt/Zoom camera, step is as follows:
Step 1:PTZ video camera powers on, the initialization of camera operation system kernel, and camera software operation, Pan/Tilt/Zoom camera is initiated registration request to the transit node of Pan/Tilt/Zoom camera;
The transit node of step 2:PTZ video camera receives after registration request, carries out authentication, after authentication is passed through, to Pan/Tilt/Zoom camera, sends registration reply;
Step 3: after touch control terminal operation, start terminal software, wait for user's operation, user is selected target video camera on touch control terminal, and touch control terminal catches user's touch-control behavior, then controls request by touch-control behavior structure PTZ;
Step 4: if the direct Pan/Tilt/Zoom camera of touch control terminal (direct-connected, directly not interconnected by transit node) enters step 5, if touch control terminal operates Pan/Tilt/Zoom camera by transit node, enter step 6;
Step 5: touch control terminal is controlled request by PTZ and mail to Pan/Tilt/Zoom camera, and shows the indicating status operating, and enters step 8;
Step 6: touch control terminal controls by PTZ the transit node that touch control terminal is mail in request, and show the indicating status operating;
Step 7: the transit node of touch control terminal is received PTZ and controlled after request, carry out authentication, after authentication, if the transit node of the transit node of Pan/Tilt/Zoom camera and touch control terminal is same node, directly mail to Pan/Tilt/Zoom camera, enter step 8, otherwise this PTZ is controlled to the transit node that request is forwarded to Pan/Tilt/Zoom camera, repeating step 7;
The transit node of step 8:PTZ video camera receives that PTZ controls after request, carries out authentication, after authentication, connection request is mail to Pan/Tilt/Zoom camera;
Step 9:PTZ video camera receives PTZ and controls after request, carries out authentication, after authentication is passed through, according to controlling type, carries out PTZ operation, if control type is translation, carry out step 10, if zoom operations carry out step 11;
Step 10:PTZ video camera takes out the mobile ratio of x axle and y axle, turn over mobile ratio and be multiplied by current viewfinder range angle value as angular deflection amount, PTZ module is initiated to the rotation command of x axle, angular deflection amount that y axle is corresponding, if cannot with the application without supporting that accurate angle is controlled; an axle larger by angle in xy axle turn over fixed angle, then performs step 12;
Step 11:PTZ video camera takes out convergent-divergent ratio, according to convergent-divergent ratio, PTZ module is initiated to zoom operations, if cannot the convergent-divergent of ratio can be fixed according to convergent-divergent ratio direction of operating pointed with the application without supporting accurate angle to control, then perform step 12;
Step 12:PTZ camera structure is controlled and is replied; If the request of controlling, from direct-connected touch control terminal, is replied that control mails to touch control terminal, enter step 15; If the request of controlling, from the transit node of Pan/Tilt/Zoom camera, is replied control the transit node that mails to Pan/Tilt/Zoom camera, enter step 13;
The transit node of step 13:PTZ video camera replys by this transit node that is forwarded to touch control terminal after receiving that PTZ control is replied;
Step 14: touch control terminal transit node receives PTZ control and to reply after, this is replied and is forwarded to touch control terminal;
Step 15: touch control terminal receives PTZ control and to reply after, finish the indicating status that operating, the Long-distance Control and the scene that complete Pan/Tilt/Zoom camera are switched.
Further, user is by the translation of touch control terminal:
User's single-point is pushed down Touch Screen, triggers screen touch-control event, and touch control terminal detects after this event, and recording current location is translation starting point (x1, y1);
User pushes down and the state of keeping in touch drags, and the release Touch Screen that frames out after dragging, when touch control terminal detects after the event that discharges Touch Screen, records the terminal (x2, y2) that current location drags for user;
Using be positioned at user's terminal of x axle and y axle and the distance of starting point with respect to the big or small mobile ratio of video display area as parameter, the PTZ that structure control mode is translation controls request;
Mobile computing method: x axle moves ratio=(width of (x2-x1)/video display area), y axle moves ratio=(height of (y2-y1)/video display area)).
Further, user is by the zoom operations of touch control terminal:
2 of users push down Touch Screen, and touch control terminal detects after this event, and 2 current positions of terminal software record are the convergent-divergent starting point with 2 coordinates ((x1, y1), (x2, y2));
User pushes down and the state of keeping in touch slides to shorten or elongate distance between two points, release touch screen frames out after slip, when touch control terminal detects after this event, the current location that terminal software record is 2 is with 2 coordinate ((x3, y3), (x4, y4)) convergent-divergent terminal;
Ratio of distances constant value between the whole coordinate of the distance between convergent-divergent starting point coordinate and convergent-divergent is as parameter, and the PTZ that structure control mode is convergent-divergent controls request;
The computational methods of convergent-divergent ratio:
Accompanying drawing explanation:
Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is networking diagram
Fig. 2 is that long-range Pan/Tilt/Zoom camera is controlled sequential chart
Fig. 3 is PTZ translation schematic diagram
Fig. 4 is PTZ amplifieroperation schematic diagram
Fig. 5 is PTZ reduction operation schematic diagram
Fig. 6 is PTZ visual angle translation parameters schematic diagram calculation
Fig. 7 is PTZ visual angle zooming parameter schematic diagram calculation
Embodiment:
The present invention be take touch control terminal as user interface, by network, Pan/Tilt/Zoom camera is operated, and realizes at wireless communication networks environment such as WIFI, 3G, carries out control and the use of long-range Pan/Tilt/Zoom camera whenever and wherever possible.
The system of the Pan/Tilt/Zoom camera Long-distance Control based on touch control terminal as shown in Figure 1, consists of touch control terminal (101), transit node (102), Pan/Tilt/Zoom camera (104), and by network (120) interconnected (110);
User, by touch control terminal, carries out Long-distance Control to Pan/Tilt/Zoom camera; Touch control terminal detects after the translation and zoom operations of PTZ corresponding to the touch-control behavior of user on screen, the coordinate values relevant with terminal according to touch-control starting point, structure PTZ controls request, then PTZ is controlled to request and mails to long-range Pan/Tilt/Zoom camera by some grades of transit nodes; Pan/Tilt/Zoom camera receives that PTZ controls request, carries out the control of PTZ The Cloud Terrace according to parameter, completes the switching of scene;
Touch control terminal has two kinds of connected modes with Pan/Tilt/Zoom camera: by IP network be directly connected, through 1 to multistage transit node by IP network interconnected.
Touch control terminal: formed by terminal hardware, terminal operating system, terminal software;
Terminal hardware: formed by the screen with touch controllable function, central processing unit, memory, loudspeaker, mixed-media network modules mixed-media;
Terminal software: formed by streaming media module, video decode module, audio decoder module, Video Rendering module, audio frequency output module, control module, user's operational module, be responsible for connecting Pan/Tilt/Zoom camera, and receive the audio-video frequency media flow data of Pan/Tilt/Zoom camera, decode, play up and export, receive user's operation requests simultaneously, this operation requests, by network destined video camera, is carried out to long-range PTZ control;
Terminal operating system: the universal intelligent terminal operating system of supporting touch control operation, general intelligent terminal operating system mainly contains the Google Android of U.S. Google at present, the IOS of American apple company, the Microsoft Windows Phone of MS;
Transit node: by transfer computer hardware, transfer network operating system, transfer server software forms;
Transfer computer hardware: the general purpose computing device being formed by central processing unit (CPU), memory (RAM), disk, master control borad, mixed-media network modules mixed-media;
Transfer network operating system: for having the generic server operating system of network communication ability, main network operating system has open source linux, the Microsoft Windows of MS, Unix at present;
Transfer server software: connection management module, transit module, main control module form; Accept the access of Pan/Tilt/Zoom camera and touch control terminal, complete the work of connection between Pan/Tilt/Zoom camera and touch control terminal, data, request transfer; Between transit node, by the network interconnection, realize touch control terminal and access from a transit node, go to be controlled at the function of a plurality of video cameras that accessed on a plurality of long-range transit nodes;
Pan/Tilt/Zoom camera: formed by video camera hardware, camera operation system, camera software;
Video camera hardware: formed by main control chip, imageing sensor, image encoder, audio collection module, mixed-media network modules mixed-media, PTZ The Cloud Terrace;
Camera operation system: the embedded OS that the embedded operating system kernel of take is core, the at present main built-in Linux of increasing income;
Camera software: formed by main control module, Media Stream acquisition module, Streaming Media communication module, PTZ control module;
PTZ The Cloud Terrace: mechanical underprop or the electronic platform based on image scaling, image interception;
The Long-distance Control of touch control terminal to Pan/Tilt/Zoom camera, as shown in Figure 2, step is as follows:
Step 1:PTZ video camera powers on, the initialization of camera operation system kernel, and camera software operation, Pan/Tilt/Zoom camera is initiated registration request to the transit node of Pan/Tilt/Zoom camera;
The transit node of step 2:PTZ video camera receives after registration request, carries out authentication, after authentication is passed through, to Pan/Tilt/Zoom camera, sends registration reply;
Step 3: after touch control terminal operation, start terminal software, wait for user's operation, user is selected target video camera on touch control terminal, and touch control terminal catches user's touch-control behavior, then controls request by touch-control behavior structure PTZ;
Step 4: if the direct Pan/Tilt/Zoom camera of touch control terminal (direct-connected, directly not interconnected by transit node) enters step 5, if touch control terminal operates Pan/Tilt/Zoom camera by transit node, enter step 6;
Step 5: as shown in 206 of Fig. 2, touch control terminal is controlled request by PTZ and mail to Pan/Tilt/Zoom camera, and shows the indicating status operating, and enters step 8;
Step 6: as shown in 207 of Fig. 2, touch control terminal controls by PTZ the transit node that touch control terminal is mail in request, and show the indicating status operating;
Step 7: the transit node of touch control terminal is received PTZ and controlled after request, carry out authentication, after authentication, if the transit node of the transit node of Pan/Tilt/Zoom camera and touch control terminal is same node, directly mail to Pan/Tilt/Zoom camera, enter step 8, otherwise this PTZ is controlled to the transit node that request is forwarded to Pan/Tilt/Zoom camera, repeating step 7;
The transit node of step 8:PTZ video camera receives that PTZ controls after request, carries out authentication, after authentication, connection request is mail to Pan/Tilt/Zoom camera;
Step 9:PTZ video camera receives PTZ and controls after request, carries out authentication, after authentication is passed through, according to controlling type, carries out PTZ operation, if control type is translation, carry out step 10, if zoom operations carry out step 11;
Step 10:PTZ video camera takes out the mobile ratio of x axle and y axle, turn over mobile ratio and be multiplied by current viewfinder range angle value as angular deflection amount, PTZ module is initiated to the rotation command of x axle, angular deflection amount that y axle is corresponding, if cannot with the application without supporting that accurate angle is controlled; an axle larger by angle in xy axle turn over fixed angle, then performs step 12;
Step 11:PTZ video camera takes out convergent-divergent ratio, according to convergent-divergent ratio, PTZ module is initiated to zoom operations, if cannot the convergent-divergent of ratio can be fixed according to convergent-divergent ratio direction of operating pointed with the application without supporting accurate angle to control, then perform step 12;
Step 12:PTZ camera structure is controlled and is replied; If the request of controlling, from direct-connected touch control terminal, is replied that control mails to touch control terminal, enter step 15; If the request of controlling, from the transit node of Pan/Tilt/Zoom camera, is replied control the transit node that mails to Pan/Tilt/Zoom camera, enter step 13;
The transit node of step 13:PTZ video camera replys by this transit node that is forwarded to touch control terminal after receiving that PTZ control is replied;
Step 14: the transit node of touch control terminal receives PTZ control and to reply after, this is replied and is forwarded to touch control terminal;
Step 15: touch control terminal receives PTZ control and to reply after, finish the indicating status that operating, the Long-distance Control and the scene that complete Pan/Tilt/Zoom camera are switched.
Further, user is by the translation of touch control terminal, as shown in Figure 3:
User's single-point is pushed down Touch Screen, triggers screen touch-control event, and touch control terminal detects after this event, and recording current location is translation starting point (x1, y1);
User pushes down and the state of keeping in touch drags, and the release Touch Screen that frames out after dragging, when touch control terminal detects after the event that discharges Touch Screen, records the terminal (x2, y2) that current location drags for user;
Using be positioned at user's terminal of x axle and y axle and the distance of starting point with respect to the big or small mobile ratio of video display area as parameter, the PTZ that structure control mode is translation controls request;
Mobile computing method, as shown in Figure 6: x axle moves ratio=(width of (x2-x1)/video display area), y axle moves ratio=(height of (y2-y1)/video display area)).
Further, user, by the zoom operations of touch control terminal, amplifies as Fig. 4, dwindles as shown in Figure 5:
2 of users push down Touch Screen, trigger screen touch-control event, and touch control terminal detects after this event, and 2 current positions of terminal software record are the convergent-divergent starting point with 2 coordinates ((x1, y1), (x2, y2));
User pushes down and the state of keeping in touch slides to shorten or elongate distance between two points, release touch screen frames out after slip, when touch control terminal detects after this event, the current location that terminal software record is 2 is with 2 coordinate ((x3, y3), (x4, y4)) convergent-divergent terminal;
Ratio of distances constant value between the whole coordinate of the distance between convergent-divergent starting point coordinate and convergent-divergent is as parameter, and the PTZ that structure control mode is convergent-divergent controls request;
The computational methods of convergent-divergent ratio, as shown in Figure 7:
Claims (7)
1. the present invention is achieved in that a kind of system and method for the Pan/Tilt/Zoom camera Long-distance Control based on touch control terminal, it is characterized in that, the method comprises following main process and step:
The system of Long-distance Control: by touch control terminal, transit node, Pan/Tilt/Zoom camera, formed, and by the network interconnection;
User, by touch control terminal, carries out Long-distance Control to Pan/Tilt/Zoom camera; Touch control terminal detects after the translation or zoom operations of PTZ corresponding to the touch-control behavior of user on screen, the coordinate values relevant with terminal according to touch-control starting point, structure PTZ controls request, then PTZ is controlled to request and mails to long-range Pan/Tilt/Zoom camera by some grades of transit nodes; Pan/Tilt/Zoom camera receives that PTZ controls request, carries out the control of PTZ The Cloud Terrace according to parameter, completes the switching of scene;
Touch control terminal has two kinds of connected modes with Pan/Tilt/Zoom camera: by IP network be directly connected, through 1 to multistage transit node by IP network interconnected.
2. touch control terminal as claimed in claim 1: formed by terminal hardware, terminal operating system, terminal software;
Terminal hardware: formed by the Touch Screen with touch controllable function, central processing unit, memory, loudspeaker, mixed-media network modules mixed-media;
Terminal software: formed by streaming media module, video decode module, audio decoder module, Video Rendering module, audio frequency output module, control module, user's operational module; Be responsible for connecting Pan/Tilt/Zoom camera, and receive the audio-video frequency media flow data of Pan/Tilt/Zoom camera, decode, play up and export, receive user's operation requests simultaneously, this operation requests, by network destined video camera, is carried out to long-range PTZ control;
Terminal operating system: the universal intelligent terminal operating system of supporting touch control operation.
3. transit node as claimed in claim 1: by transfer computer hardware, transfer network operating system, transfer server software forms;
Transfer computer hardware: the general purpose computing device being formed by central processing unit (CPU), memory (RAM), disk, master control borad, mixed-media network modules mixed-media;
Transfer network operating system: for thering is the generic server operating system of network communication ability;
Transfer server software: connection management module, transit module, main control module form; Accept the access of Pan/Tilt/Zoom camera and touch control terminal, complete the work of connection between Pan/Tilt/Zoom camera and touch control terminal, data, request transfer; Between transit node, by the network interconnection, realize touch control terminal and access from a transit node, go to be controlled at the function of a plurality of video cameras that accessed on a plurality of long-range transit nodes.
4. the Pan/Tilt/Zoom camera as described in claim 1: formed by video camera hardware, camera operation system, camera software;
Video camera hardware: formed by main control chip, imageing sensor, image encoder, audio collection module, mixed-media network modules mixed-media, PTZ The Cloud Terrace;
Camera operation system: the embedded OS that the embedded operating system kernel of take is core;
Camera software: formed by main control module, Media Stream acquisition module, Streaming Media communication module, PTZ control module;
PTZ The Cloud Terrace: mechanical underprop or the electronic platform based on image scaling, image interception.
5. the Long-distance Control of touch control terminal as claimed in claim 1 to Pan/Tilt/Zoom camera, the Long-distance Control of touch control terminal to Pan/Tilt/Zoom camera, step is as follows:
Step 1:PTZ video camera powers on, the initialization of camera operation system kernel, and camera software operation, Pan/Tilt/Zoom camera is initiated registration request to the transit node of Pan/Tilt/Zoom camera;
The transit node of step 2:PTZ video camera receives after registration request, carries out authentication, after authentication is passed through, to Pan/Tilt/Zoom camera, sends registration reply;
Step 3: after touch control terminal operation, start terminal software, wait for user's operation, user is selected target video camera on touch control terminal, and touch control terminal catches user's touch-control behavior, then controls request by touch-control behavior structure PTZ;
Step 4: if the direct Pan/Tilt/Zoom camera of touch control terminal (direct-connected, directly not interconnected by transit node) enters step 5, if touch control terminal operates Pan/Tilt/Zoom camera by transit node, enter step 6;
Step 5: touch control terminal is controlled request by PTZ and mail to Pan/Tilt/Zoom camera, and shows the indicating status operating, and enters step 8;
Step 6: touch control terminal controls by PTZ the transit node that touch control terminal is mail in request, and show the indicating status operating;
Step 7: the transit node of touch control terminal is received PTZ and controlled after request, carry out authentication, after authentication, if the transit node of the transit node of Pan/Tilt/Zoom camera and touch control terminal is same node, directly mail to Pan/Tilt/Zoom camera, enter step 8, otherwise this PTZ is controlled to the transit node that request is forwarded to Pan/Tilt/Zoom camera, repeating step 7;
The transit node of step 8:PTZ video camera receives that PTZ controls after request, carries out authentication, after authentication, connection request is mail to Pan/Tilt/Zoom camera;
Step 9:PTZ video camera receives PTZ and controls after request, carries out authentication, after authentication is passed through, according to controlling type, carries out PTZ operation, if control type is translation, carry out step 10, if zoom operations carry out step 11;
Step 10:PTZ video camera takes out the mobile ratio of x axle and y axle, turn over mobile ratio and be multiplied by current viewfinder range angle value as angular deflection amount, PTZ module is initiated to the rotation command of x axle, angular deflection amount that y axle is corresponding, if cannot with the application without supporting that accurate angle is controlled; an axle larger by angle in xy axle turn over fixed angle, then performs step 12;
Step 11:PTZ video camera takes out convergent-divergent ratio, according to convergent-divergent ratio, PTZ module is initiated to zoom operations, if cannot the convergent-divergent of ratio can be fixed according to convergent-divergent ratio direction of operating pointed with the application without supporting accurate angle to control, then perform step 12;
Step 12:PTZ camera structure is controlled and is replied; If the request of controlling, from direct-connected touch control terminal, is replied that control mails to touch control terminal, enter step 15; If the request of controlling, from the transit node of Pan/Tilt/Zoom camera, is replied control the transit node that mails to Pan/Tilt/Zoom camera, enter step 13;
The transit node of step 13:PTZ video camera is controlled PTZ to reply the transit node that is forwarded to touch control terminal after receiving that PTZ control is replied;
Step 14: touch control terminal transit node receives PTZ control and to reply after, PTZ controlled to reply be forwarded to touch control terminal;
Step 15: touch control terminal receives PTZ control and to reply after, finish the indicating status that operating, the Long-distance Control and the scene that complete Pan/Tilt/Zoom camera are switched.
6. user as claimed in claim 1 is by the translation of touch control terminal, further:
User's single-point is pushed down Touch Screen, triggers screen touch-control event, and touch control terminal detects after this event, and recording current location is translation starting point (x1, y1);
User pushes down and the state of keeping in touch drags, and the release Touch Screen that frames out after dragging, when touch control terminal detects after the event that discharges Touch Screen, records the terminal (x2, y2) that current location drags for user;
Using be positioned at user's terminal of x axle and y axle and the distance of starting point with respect to the big or small mobile ratio of video display area as parameter, the PTZ that structure control mode is translation controls request;
Mobile computing method: x axle moves ratio=(width of (x2-x1)/video display area), y axle moves ratio=(height of (y2-y1)/video display area)).
7. user as claimed in claim 1 is by the zoom operations of touch control terminal, further:
2 of users push down Touch Screen, trigger screen touch-control event, and touch control terminal detects after this event, and 2 current positions of terminal software record are the convergent-divergent starting point with 2 coordinates ((x1, y1), (x2, y2));
User pushes down and the state of keeping in touch slides to shorten or elongate distance between two points, release touch screen frames out after slip, when touch control terminal detects after this event, the current location that terminal software record is 2 is with 2 coordinate ((x3, y3), (x4, y4)) convergent-divergent terminal;
Ratio of distances constant value between the whole coordinate of the distance between convergent-divergent starting point coordinate and convergent-divergent is as parameter, and the PTZ that structure control mode is convergent-divergent controls request;
The computational methods of convergent-divergent ratio:
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| CN109151297A (en) * | 2017-08-15 | 2019-01-04 | 南京仁光电子科技有限公司 | Method, equipment and the system interacted based on screen and video camera |
| CN110799932A (en) * | 2017-06-29 | 2020-02-14 | 麦克赛尔株式会社 | Portable terminal |
| CN114205523A (en) * | 2021-11-18 | 2022-03-18 | 苏州长风航空电子有限公司 | Monitoring image control method for photoelectric turntable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106504636A (en) * | 2016-12-16 | 2017-03-15 | 成都四威电子有限公司成都星石科技分公司 | A kind of method that Two-dimensional electron map is quickly generated based on dwg files |
| CN110799932A (en) * | 2017-06-29 | 2020-02-14 | 麦克赛尔株式会社 | Portable terminal |
| CN109151297A (en) * | 2017-08-15 | 2019-01-04 | 南京仁光电子科技有限公司 | Method, equipment and the system interacted based on screen and video camera |
| CN114205523A (en) * | 2021-11-18 | 2022-03-18 | 苏州长风航空电子有限公司 | Monitoring image control method for photoelectric turntable |
| CN114205523B (en) * | 2021-11-18 | 2024-06-04 | 苏州长风航空电子有限公司 | Photoelectric turntable monitoring image control method |
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