CN103634571A - Irregular polygon monitoring early warning region delimiting method based on mobile client end - Google Patents
Irregular polygon monitoring early warning region delimiting method based on mobile client end Download PDFInfo
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- CN103634571A CN103634571A CN201310620298.1A CN201310620298A CN103634571A CN 103634571 A CN103634571 A CN 103634571A CN 201310620298 A CN201310620298 A CN 201310620298A CN 103634571 A CN103634571 A CN 103634571A
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Abstract
The invention discloses an irregular polygon monitoring early warning region delimiting method based on a mobile client end. A target object capable of setting early warning and a monitoring camera are arranged in a monitoring region, the output end of the monitoring camera is connected to a monitoring server end; the mobile client end is connected with the monitoring server end by a wireless network; the method comprises the steps that the monitoring server end and the mobile client end obtain a monitoring region scene, the mobile client end determines the number of the early warning region and the range of the early warning region, selects the peaks of an irregular polygon, delimits the monitoring early warning region and sends the coordinates of the peaks to the monitoring server end, the monitoring server end performs coordinate conversion and finally determines the monitoring early warning region, an early warning image is generated according to the delimited monitoring early warning region, and corresponding image data are transferred to the mobile client end. The operation and control efficiency of the mobile client end is higher, the target object can be accurately reliably delimited, the data redundancy is reduced, the data processing speed is improved and the data flow consumption is reduced.
Description
Technical field
The present invention relates to monitoring remote video technical field, particularly a kind of irregular polygon monitoring and early warning regional assignment method based on mobile client.
Background technology
At home, cable network is not set up in many places, on ultra-high-tension power transmission line, can only adopt optical fiber or 3G infinite network transmission data, and for video monitoring system, cost is too high.In some monitoring site, only have when external force enters this scope, monitoring scene just can change, and remaining most of the time is all in the normal state; Except according to time point transmitting video-frequency flow, only need there being the scene that external force enters to carry out corresponding operating.And due to the limit bandwidth of 3G network, large video streaming is slower, and has longer time delay.
In needing the supervisory control system of danger early warning, object only accounts for a very little part in monitoring scene conventionally.Therefore,, in the time of real time inspection, monitoring server end is beamed back the image of whole monitoring scene; For not needing real time inspection, but when needing danger early warning, only need to pass back and comprise object in interior key monitoring area data.Therefore, how to divide key monitoring prewarning area, minimizing data flow, raising processing speed just become extremely important.
Current key monitoring regional assignment is generally drawn by computer client, and its mode is for carrying out region division by drawing warning line, and computer client can be delimited prewarning area easily by mouse.On cell-phone customer terminal, have a kind of grid type to divide the method for prewarning area, the cell by the capable N row of the M that distributes in guarded region, carries out the setting of warning level to each cell, determine prewarning area.But existing prewarning area division methods all exists the more defect of redundant data, reduced the speed of data processing; For mobile device, expend more data traffic.
Summary of the invention
The technical problem to be solved in the present invention is: in mobile client, delimit out as required the prewarning area that is irregular polygon, to reduce the redundancy in transfer of data, improve data processing several times, reduce the consumption of data traffic.
The technical scheme that the present invention takes is specially: the irregular polygon monitoring and early warning regional assignment method based on mobile client, guarded region comprises 2 above objects that early warning can be set, in guarded region, be provided with monitoring camera, the output end of image of monitoring camera connects monitoring server end; Mobile client connects monitoring server end by wireless network; Method comprises the following steps:
(1) monitoring server end obtains the scene of guarded region from monitoring camera; Mobile client communicates by letter to obtain identical guarded region scene with monitoring server end, is presented on mobile client interface;
(2) determine the quantity of prewarning area: on mobile client monitoring scene interface, select to need the object of early warning, the quantity in the crossing region forming of a plurality of object profiles is the quantity of prewarning area;
(3) determine the scope of prewarning area: the profile of each object in above-mentioned each prewarning area is outwards expanded to 1 ~ 1.1 times in proportion, and the scope after expansion is the scope of each prewarning area;
(4) select the summit of irregular polygon, delimit monitoring and early warning region: within the scope of above-mentioned arbitrary prewarning area, select a point as summit, be recorded as first D1, according to clockwise or counterclockwise direction, within the scope of the adjacent prewarning area of place, the summit prewarning area with up-to-date selection, select successively second some D2, the 3rd some D3 ... until be arranged in N some DN of N prewarning area; According to selecting sequence, in turn adjacent summit is connected with straight line; D1 is connected with straight line with DN simultaneously; The irregular N limit shape being surrounded by N bar line segment forming after D1 to DN connects, is monitoring and early warning region;
(5) mobile client by the coordinates transmission on above-mentioned each summit to monitoring server end, monitoring server end carries out Coordinate Conversion by the coordinate data receiving, obtain the point corresponding with above-mentioned each summit in the scene of server side to monitor region, and according to the order of step (4), consecutive points are connected with straight line, form irregular polygon, determine monitoring and early warning region;
(6) monitoring server end generates early warning image according to the monitoring and early warning region delimited, to occur when abnormal, transmitting the realtime image data that only comprises scene in monitoring and early warning regional extent to mobile client when monitoring and early warning region in.
In the present invention, mobile client can utilize existing intelligent mobile touch-screen equipment as mobile phone, panel computer etc., and monitoring server end adopts computer.Guarded region scene is presented on the touch-screen of touch-screen equipment and the display of computer, the demonstration of scene, mobile client to the apex coordinate conversion of the data communication between the response processing of controlling, mobile client and monitoring server end and monitoring server end etc., all can utilize existing software engineering to realize.
Beneficial effect of the present invention is: the monitoring and early warning region of delimiting according to the step of the inventive method can guarantee that all objects of early warning that need are all enclosed in early warning range, when arbitrary object occurs when abnormal, monitoring server end is about to early warning information and corresponding image information is sent to mobile client, facilitates checking of mobile client staff.Mobile client can make full use of the touch screen functionality of existing Intelligent mobile equipment, controlling efficiency is greatly enhanced, the monitoring and early warning regional extent that only limits to delimit due to the information interaction between monitoring server end and mobile client, therefore transfer of data redundancy reduces, the speed of data processing is largely increased, and the data traffic consumption between mobile client and monitoring server end also will reduce greatly.
Accompanying drawing explanation
Figure 1 shows that the delimitation schematic diagram in mobile client monitoring and early warning region;
Figure 2 shows that mobile client guarded region scope is to the Coordinate Conversion schematic diagram of monitoring server end guarded region scope.
Embodiment
Below in conjunction with the drawings and specific embodiments, further describe.
When the present invention applies, guarded region comprises a plurality of objects that early warning is set, and is provided with monitoring camera in guarded region, and the output end of image of monitoring camera connects monitoring server end; Mobile client connects monitoring server end by wireless network; Mobile client can utilize existing intelligent mobile touch-screen equipment as mobile phone, panel computer etc., and monitoring server end adopts computer.Irregular polygon monitoring and early warning regional assignment method based on mobile client comprises the following steps:
(1) monitoring server end obtains the scene of guarded region from monitoring camera; Mobile client communicates by letter to obtain identical guarded region scene with monitoring server end, is presented on mobile client interface; In this step, guarded region scene is global scene, has comprised all objects;
(2) determine the quantity of prewarning area: on mobile client monitoring scene interface, select to need the object of early warning, the quantity in the crossing region forming of a plurality of object profiles is the quantity of prewarning area; For different environment, the object that needs danger early warning to set is not identical yet, when setting, can select according to actual needs; After select target thing, the profile of object is set, there will be intersecting of profile between a plurality of objects, forms a plurality of closed areas;
(3) determine the scope of prewarning area: the profile of each object in above-mentioned each prewarning area is outwards expanded to 1 ~ 1.1 times in proportion, and the scope after expansion is the scope of each prewarning area;
(4) select the summit of irregular polygon, delimit monitoring and early warning region: within the scope of above-mentioned arbitrary prewarning area, select a point as summit, be recorded as first D1, according to clockwise or counterclockwise, in the same direction, within the scope of the adjacent prewarning area of place, the summit prewarning area with up-to-date selection, select successively second some D2, the 3rd some D3 ... until be arranged in N some DN of N prewarning area; According to selecting sequence, in turn adjacent summit is connected with straight line; D1 is connected with straight line with DN simultaneously; The irregular N limit shape being surrounded by N bar line segment forming after D1 to DN connects, is monitoring and early warning region, as shown in Figure 1; Expanded scope in proportion in step (3) can guarantee that all early warning objects that need can be put under in early warning range after prewarning area delimited;
(5) mobile client is by above-mentioned each summit, be that the coordinates transmission of D1 to DN is to monitoring server end, monitoring server end carries out Coordinate Conversion by the coordinate data receiving, obtain the point corresponding with above-mentioned each summit in the scene of server side to monitor region, and according to the order of step (4), consecutive points are connected with straight line, form irregular polygon, determine monitoring and early warning region; Due in step (1), the guarded region scene 1 that mobile client gets is identical with the guarded region scene 2 on monitoring server end display interface, therefore the identical point in two scenes is at the coordinate at mobile client interface, with the coordinate at monitoring server end be one to one, monitoring server end can utilize existing software to carry out Coordinate Conversion according to this corresponding relation, find the respective point in monitoring server end scene, as shown in Figure 2;
(6) monitoring server end generates early warning image according to the monitoring and early warning region delimited, to occur when abnormal, transmitting the realtime image data that only comprises scene in monitoring and early warning regional extent to mobile client when monitoring and early warning region in.
When application, staff can be by clicking the screen select target thing of mobile client and the summit of irregular polygon, monitoring server end is received after apex coordinate, from mobile client coordinate system, be transformed into the coordinate system of monitoring server end, draw out corresponding irregular polygon prewarning area, to generate early warning image.
The specific embodiment shown in Fig. 1 and Fig. 2 of take illustrates: the concrete steps of delimiting prewarning area as:
The first step, mobile client is obtained guarded region scene picture from monitoring server end;
Second step, select target thing, mobile client be take needs the object of danger warning as benchmark, establishes prewarning area;
The 3rd step, according to object, causes by the outer amplification of profile equal proportion the scope of determining prewarning area in mobile client monitored picture;
The 4th step is chosen the summit of irregular polygon in mobile client monitored picture, draws irregular polygon prewarning area.Click screen, according to counterclockwise order successively Chosen Point Di (i=1,2 ... 8), the coordinate of some Di is designated as D
i(xi, yi).The starting point P coordinate in the monitored picture upper left corner is designated as P (a, b).Order is by adjacent 2 the polygon prewarning areas connected with line segment, formation is sealed; Mobile client records in order apex coordinate and sends to monitoring server end;
The 5th step, monitoring server end is transformed into the apex coordinate receiving in himself coordinate system, and as shown in Figure 2, monitoring server end display interface adopts 720*576 resolution format, and mobile client display interface adopts CIF (352*288) form.After coordinate system converts, at monitoring server end by summit d in order, between adjacent 2, with segment link, form the irregular polygon monitoring and early warning region of sealing;
In the present embodiment, the summit D in OXY coordinate system
i(xi, yi) is transformed into the summit d of OMN coordinate system
ithe formula of (mi, ni) is
Mobile client and monitoring server end display interface change resolution, the corresponding change of conversion formula;
The 6th step, monitoring server end generates early warning image according to the monitoring and early warning region of having delimited.
The monitoring and early warning region of delimiting according to the step of the inventive method can guarantee that all objects of early warning that need are all enclosed in early warning range, when arbitrary object occurs when abnormal, monitoring server end is about to early warning information and corresponding image information is sent to mobile client, facilitates checking of mobile client staff.Mobile client can make full use of the touch screen functionality of existing Intelligent mobile equipment, controlling efficiency is greatly enhanced, the monitoring and early warning regional extent that only limits to delimit due to the information interaction between monitoring server end and mobile client, therefore transfer of data redundancy reduces, the speed of data processing is largely increased.
Claims (1)
1. the irregular polygon monitoring and early warning regional assignment method based on mobile client, it is characterized in that: guarded region comprises 2 above objects that early warning can be set, in guarded region, be provided with monitoring camera, the output end of image of monitoring camera connects monitoring server end; Mobile client connects monitoring server end by wireless network; Method comprises the following steps:
(1) monitoring server end obtains the scene of guarded region from monitoring camera; Mobile client communicates by letter to obtain identical guarded region scene with monitoring server end, is presented on mobile client interface;
(2) determine the quantity of prewarning area: on mobile client monitoring scene interface, select to need the object of early warning, the quantity in the crossing region forming of a plurality of object profiles is the quantity of prewarning area;
(3) determine the scope of prewarning area: the profile of each object in above-mentioned each prewarning area is outwards expanded to 1 ~ 1.1 times in proportion, and the scope after expansion is the scope of each prewarning area;
(4) select the summit of irregular polygon, delimit monitoring and early warning region: within the scope of above-mentioned arbitrary prewarning area, select a point as summit, be recorded as first D1, according to clockwise or counterclockwise direction, within the scope of the adjacent prewarning area of place, the summit prewarning area with up-to-date selection, select successively second some D2, the 3rd some D3 ... until be arranged in N some DN of N prewarning area; According to selecting sequence, in turn adjacent summit is connected with straight line; D1 is connected with straight line with DN simultaneously; The irregular N limit shape being surrounded by N bar line segment forming after D1 to DN connects, is monitoring and early warning region;
(5) mobile client by the coordinates transmission on above-mentioned each summit to monitoring server end, monitoring server end carries out Coordinate Conversion by the coordinate data receiving, obtain the point corresponding with above-mentioned each summit in the scene of server side to monitor region, and according to the order of step (4), consecutive points are connected with straight line, form irregular polygon, determine monitoring and early warning region;
(6) monitoring server end generates early warning image according to the monitoring and early warning region delimited, to occur when abnormal, transmitting the realtime image data that only comprises scene in monitoring and early warning regional extent to mobile client when monitoring and early warning region in.
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| CN105160793A (en) * | 2015-09-01 | 2015-12-16 | 小米科技有限责任公司 | Alarming method and apparatus |
| CN106341659A (en) * | 2016-09-05 | 2017-01-18 | 海信集团有限公司 | Method and device for selecting key monitoring area of monitoring image |
| CN108303719A (en) * | 2018-01-30 | 2018-07-20 | 上海电力学院 | A method of judging whether monitoring client dynamic position exceeds virtual fence |
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| CN109683787A (en) * | 2018-12-28 | 2019-04-26 | 北京工业大学 | A kind of method of the more display field definitions of infrared panorama monitoring software and operation monitoring area |
| CN111047808A (en) * | 2019-11-26 | 2020-04-21 | 河南铭视科技股份有限公司 | Crisis early warning method based on video monitoring |
| CN111832357A (en) * | 2019-04-19 | 2020-10-27 | 苏州涟漪信息科技有限公司 | Mobile event detection method and device |
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