CN106303422B - Live video display method and equipment - Google Patents
Live video display method and equipment Download PDFInfo
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- CN106303422B CN106303422B CN201610668999.6A CN201610668999A CN106303422B CN 106303422 B CN106303422 B CN 106303422B CN 201610668999 A CN201610668999 A CN 201610668999A CN 106303422 B CN106303422 B CN 106303422B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
Abstract
The invention discloses a video live display method, which comprises the steps of determining a monitoring strategy corresponding to mobile equipment after the position information of the mobile equipment corresponding to a monitored object is acquired, selecting a camera to be displayed from available cameras according to the position information of the mobile equipment and the monitoring strategy, and finally displaying the live of the camera to be displayed. Therefore, the camera scene for the alternate cutting can be flexibly and automatically selected according to the position of the monitored object, and the convenience of the monitoring work is improved on the basis of reducing the manpower consumption. The invention also discloses a video live display device.
Description
Technical Field
The invention relates to the field of video monitoring, in particular to a method for displaying live videos. The application also relates to a video live display device.
Background
Video surveillance is an important component of security systems. The traditional monitoring system comprises a front-end camera, a transmission cable and a video monitoring platform. The cameras can be divided into network digital cameras and analog cameras and can be used for collecting front-end video image signals. It is a comprehensive system with strong precautionary ability. Video monitoring is widely applied to many occasions due to intuition, accuracy, timeliness and rich information content.
In recent years, with the rapid development of computers, networks, image processing and transmission technologies, video monitoring technologies have been developed. With the continuous promotion and deepening of the construction of the national video monitoring system, the construction scale and the coverage range of the video monitoring cameras are gradually enlarged, so that the unit safety is greatly guaranteed, and meanwhile, the problems of insufficient resources of public monitoring points, more monitoring blind points and the like are effectively solved.
Due to the limitation of manpower, technicians cannot check the contents of a large number of cameras one by one, and therefore the conventional cameras need to be processed in turn, so that the technicians can know the conditions of different areas as much as possible. The existing rotation cutting function is realized by requiring technicians to appoint cameras to be rotated and to configure a rotation cutting time interval for each camera, and after the rotation cutting is started, a system automatically calls the rotation cutting cameras one by one on a television wall or a screen according to configured parameters and fixed time intervals.
The inventor finds that the prior art at least has the following technical problems in the process of implementing the invention:
when safety requirements are high (for example, escort protection) or important activities (for example, sports events), a live scene around a certain person/object (subsequently, called a monitored object) needs to be acquired, and in the existing wheel cutter, technicians need to select cameras according to nearby camera positions and assign wheel cutter intervals one by one, so that time and labor are consumed, the situation around the monitored object cannot be displayed completely and infallibly according to the actual situation, and the situation around the monitored object cannot be retrieved seamlessly even if the monitored object moves or is in the moving process, so that the video monitoring work is difficult.
Disclosure of Invention
The invention provides a video live display method, which is used for solving the problem that a camera for alternate cutting cannot be flexibly and automatically selected according to the position of a monitored object in the prior art, and comprises the following steps:
acquiring position information of mobile equipment corresponding to a monitored object;
determining a monitoring policy corresponding to the mobile device;
selecting a camera to be displayed from available cameras according to the position information of each mobile device and the monitoring strategy;
and displaying the live condition of the camera to be displayed.
Preferably, before the obtaining of the location information of the mobile device corresponding to the monitored object, the method further includes:
creating a mobile alternate cutting control scheme according to a display terminal used by a user, wherein the mobile alternate cutting control scheme at least comprises the monitoring strategy;
determining the mobile equipment corresponding to the monitored object according to the selection operation of the user;
wherein the monitoring policy at least comprises:
displaying a live view of the mobile device;
and/or, displaying live of a camera in the vicinity of the mobile device;
and/or, displaying live of a camera in front of a direction of travel of the mobile device;
and/or displaying the live of the camera behind the direction of travel of the mobile device.
Preferably, the moving round-off control scheme further includes a display layout for displaying the live view of the camera to be displayed, specifically:
and displaying the live scenes of the cameras to be displayed according to the display layout in the mobile turn-over control scheme, and closing the live scenes which are displayed but not belong to the cameras to be displayed.
Preferably, a camera to be displayed is selected from available cameras according to the location information of each mobile device and the monitoring policy, specifically:
if the mobile wheel switching control scheme further comprises a preset route map, selecting the camera to be displayed within a specified range of the position information in the route map according to the monitoring strategy, or selecting the camera to be displayed according to the monitoring strategy and a shooting range of cameras around the position information in the route map;
and if the mobile wheel cutting control scheme does not comprise the route map, selecting the camera to be displayed in the appointed range of the position information according to the monitoring strategy and the shooting range of the cameras around the position information.
Preferably, the obtaining of the location information of the mobile device corresponding to the monitored object specifically includes:
acquiring a positioning signal of the mobile equipment;
if the positioning signal is successfully acquired, generating the position information according to the positioning signal;
if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the movement speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not comprise a route map, determining a predicted route map according to the mobile direction information and historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map;
the mobile speed information is determined and reported after the mobile equipment acquires the speed information of the monitored object through an interface between the mobile equipment and the monitored object;
or, the moving speed information is determined according to the moving speed of the reference object relative to the monitored object in the live condition.
Correspondingly, the present application also proposes a video live display device, including:
the acquisition module acquires the position information of the mobile equipment corresponding to the monitored object;
the determining module is used for determining a monitoring strategy and a display layout corresponding to the mobile equipment;
the selection module is used for selecting a camera to be displayed from available cameras according to the position information of each piece of mobile equipment and the monitoring strategy;
and the display module is used for displaying the live condition of the camera to be displayed.
Preferably, the method further comprises the following steps:
the initialization module is used for creating a mobile alternate switching control scheme according to a display terminal used by a user and determining the mobile equipment corresponding to the monitored object according to the selection operation of the user;
wherein the mobile turn-around control scheme at least comprises the monitoring policy, which at least comprises:
displaying a live view of the mobile device;
and/or, displaying live of a camera in the vicinity of the mobile device;
and/or, displaying live of a camera in front of a direction of travel of the mobile device;
and/or displaying the live of the camera behind the direction of travel of the mobile device.
Preferably, the moving wheel cutting control scheme further includes a display layout, and the display module is specifically configured to:
and displaying the live scenes of the cameras to be displayed according to the display layout in the mobile turn-over control scheme, and closing the live scenes which are displayed but not belong to the cameras to be displayed.
Preferably, the selection module is specifically configured to:
if the mobile wheel switching control scheme further comprises a preset route map, selecting the camera to be displayed within a specified range of the position information in the route map according to the monitoring strategy, or selecting the camera to be displayed according to the monitoring strategy and a shooting range of cameras around the position information in the route map;
and if the mobile wheel cutting control scheme does not comprise the route map, selecting the camera to be displayed within the appointed range of the position information according to the monitoring strategy and the shooting range of the cameras around the position information.
Preferably, the obtaining module is specifically configured to:
acquiring a positioning signal of the mobile equipment;
if the positioning signal is successfully acquired, generating the position information according to the positioning signal;
if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the movement speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not comprise a route map, determining a predicted route map according to the mobile direction information and historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map;
the mobile speed information is determined and reported after the mobile equipment acquires the speed information of the monitored object through an interface between the mobile equipment and the monitored object;
or, the moving speed information is determined according to the moving speed of the reference object relative to the monitored object in the live condition.
Therefore, by applying the technical scheme of the application, after the position information of the mobile equipment corresponding to the monitored object is obtained, the monitoring strategy corresponding to the mobile equipment is determined, the camera to be displayed is selected from the available cameras according to the position information of the mobile equipment and the monitoring strategy, and finally the live condition of the camera to be displayed is displayed. Therefore, the camera scene for the alternate cutting can be flexibly and automatically selected according to the position of the monitored object, and the convenience of the monitoring work is improved on the basis of reducing the manpower consumption.
Drawings
Fig. 1 is a schematic flow chart of a video live display method proposed in the present application;
fig. 2 is a schematic diagram of device access networking in the embodiment of the present application;
FIG. 3 is a schematic diagram of a video live display scenario according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another embodiment of a live video display scenario;
FIG. 5 is a flowchart illustrating operations performed when location information of a mobile device cannot be updated according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a video live display device according to the present application.
Detailed Description
As described in the background art, in the existing video monitoring work, if it is necessary to perform round-cut display on a monitored object (that is, a camera around the monitored object is continuously switched to display a live scene along with the movement of the monitored object), a technician needs to manually select a camera in advance and designate a round-cut interval for the selected camera one by one, which is not only time and labor consuming, but also cannot display the situation around the monitored object without errors according to the actual situation. Therefore, the existing video monitoring work has many difficulties in the situation that the situation of the live situation around the moving object cannot be seamlessly retrieved by adopting the manual tracking method.
In view of the problem that the situation around the moving object cannot be seamlessly retrieved by adopting a manual tracking method in the prior art, the application provides a video situation display method so as to flexibly and automatically select the situation of the camera for alternate cutting according to the position of the monitored object.
Before describing the technical solution of the present application, first, a moving round-cutting control scheme related to the technical solution of the present application is explained: a complete mobile turn-around control scheme should include at least the camera monitoring strategy, and in some preferred implementations, may also include information such as the display layout of the display terminal for the technician. In the process of performing the wheel cutting control on the monitored object, a uniform mobile wheel cutting scheme may be applied to the mobile device related to the monitored object, or different mobile wheel cutting schemes may be applied to different mobile devices, respectively, and these optional factors may be generated according to the selection of a technician (i.e., a user) before implementing the technical scheme of the present application.
In an actual application scenario, a plurality of objects and devices in a group of monitored objects may need to be monitored, and there may be a case where the monitored objects are important and a plurality of mobile devices are adopted to monitor simultaneously, so a technician may select one or more mobile devices for the monitored objects in advance. Therefore, before implementing the scheme of the present application, in a preferred embodiment of the present application, a mobile switching control scheme is first created according to a display terminal used by a user, where the mobile switching control scheme at least includes a monitoring policy, and then a mobile device corresponding to a monitored object is determined according to a selection operation of the user.
As shown in fig. 1, a schematic flow chart of a video live display method proposed by the present application is provided, which includes the following specific steps:
step 101, obtaining position information of mobile equipment corresponding to a monitored object
In the process of the wheel cutting, different cameras need to be selected for shooting according to the position of the mobile equipment, so that the position information of the mobile equipment needs to be determined. In a preferred embodiment of the present application, the location information of the mobile device is determined by acquiring a location signal of the mobile device, if the location signal of the mobile device is acquired, the location information of the mobile device may be generated according to the location signal, and further, the adopted cameras for tracking shooting are determined according to the location information of the mobile device on the current map, the location information of the cameras, and a monitoring policy, so as to display the live conditions of the cameras.
It should be noted that the mobile device mentioned in the technical solution of the present application is an electronic object with a small volume relative to the monitored object, and it needs to have the functions of collecting and reporting the position information. The mobile device may be arranged on the monitored object alone or together with other mobile devices. In a specific application scenario of the technical scheme of the application, the mobile device is connected with the monitored object through an interface, so that the mobile device can not only report the position information of the monitored object, but also further acquire the mobile information of the monitored object. In the process of displaying the corresponding live condition of the camera, the technical scheme of the application can divide the screen into a plurality of parts according to the display terminal currently used by technicians, wherein each part respectively displays the live condition content of the camera, or can independently select any one of the cameras for video display, and the difference of the display layout of the specific camera does not influence the protection range of the application.
In an actual application scenario, there are some reasons that cause a poor state of a positioning signal or a loss of the positioning signal, and at this time, location information is determined according to a route map of mobile equipment, and under the condition that the route map is preset, the mobile equipment is more accurately and conveniently located, and some extra invalid operations are reduced, so that when the state of the positioning signal is poor or the positioning signal information is lost, the following two conditions are respectively provided according to whether the route map of the mobile equipment with the monitoring object is available:
a) and determining the position information of the mobile equipment according to the movement speed information and the route map reported by the mobile equipment and the historical information of the mobile equipment.
b) And when the mobile wheel switching scheme does not comprise a route map, determining a predicted route map according to the mobile direction information reported by the mobile equipment and the historical position information, and determining the position information of the mobile equipment by the predicted route map according to the mobile speed information reported by the mobile equipment.
In a preferred embodiment of the present application, the step first acquires a positioning signal of the mobile device, and generates location information according to the positioning signal if the acquisition of the positioning signal is successful. But if the positioning signal state is poor or in a lost state, the processing is respectively carried out based on the following conditions:
(1) if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the moving speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
(2) if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not comprise a route map, determining a predicted route map according to the mobile direction information and the historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map
It should be noted that, for the moving speed information in the above process, the moving speed information of the mobile device may be obtained based on different arrangement manners between the mobile device and the monitoring object, if the mobile device is connected to the current monitoring object through the interface, the mobile device may obtain the speed information of the monitoring object through the interface, and if the mobile device is only physically placed on the monitoring object, the moving speed information of the mobile device may be determined based on the moving speed of the reference object relative to the monitoring object in the actual situation. The modes can be completed based on the intelligent analysis of the mobile device, and can also be completed through the intelligent analysis of the back-end analysis server, and on the basis, mobile information acquisition schemes based on other processing devices and modes all belong to the protection scope of the application.
Step 102, determining a monitoring strategy corresponding to the mobile equipment;
due to the fact that one or more mobile devices exist in an actual application scene, different monitoring strategies and different display layouts for displaying records such as monitoring videos need to be adopted for different situations. In the preferred embodiment of the present application, the monitoring policy of the camera is mainly to control the camera to monitor the actual situation of the mobile device, and to record videos of various directions and angles on the mobile device, including the following situations:
1) displaying the live condition of the camera near the mobile device, namely displaying the live condition of the camera located within a certain distance of the mobile device,
2) displaying a live view of a camera ahead in a direction of travel of the mobile device; namely, a camera positioned in front of the mobile equipment in the traveling direction displays the live images, and video recording is performed in front of the mobile equipment.
3) Displaying a live view of a camera behind in a traveling direction of the mobile device; namely, a camera positioned at the rear of the traveling direction of the mobile equipment displays live videos, and the videos are recorded at the rear of the mobile equipment.
In the foregoing monitoring strategies, the monitoring strategies may adopt any one or more of the foregoing manners, and it should be noted that different adopted monitoring strategies do not affect the protection scope of the present application.
Based on the monitoring strategies, technicians can adopt different monitoring strategies according to different requirements in practical application, for example, under the condition of monitoring a plurality of mobile devices, a plurality of cameras can be simultaneously monitored in the front direction, the rear direction, the vicinity direction and other three directions in the advancing direction of the mobile devices, and the display screen is divided into a plurality of parts to be respectively displayed.
And 103, selecting a camera to be displayed from available cameras according to the position information of the mobile equipment and the monitoring strategy.
Because the alternate cutting control scheme also comprises two conditions of presetting a route map and not presetting a route map, compared with the alternate cutting control scheme without presetting a route map of the mobile equipment, the alternate cutting scheme with the preset route map of the mobile equipment has more accurate information record on the mobile equipment, reduces the complexity of video acquisition, and has different modes of selecting a camera to be displayed, so that the following three conditions are specifically adopted according to the acquired position of the mobile equipment and a determined monitoring strategy:
1) if the alternate cutting scheme comprises a preset route map, selecting a camera to be displayed within a specified range of the position information of the mobile equipment in the route map according to a determined monitoring strategy, and setting a camera within a preset range around the automatically displayed route;
2) if the alternate cutting scheme comprises a preset route map, selecting a camera to be displayed in the shooting range of the peripheral cameras in the running process of the mobile equipment according to the determined monitoring strategy and the position information of the mobile equipment in the route map, selecting the cameras around the route, removing irrelevant cameras according to the shooting range of the cameras, and only calling and reading the appointed cameras during alternate cutting so as to obtain clear monitoring records.
3) And if the route map is not preset in the alternate switching scheme, selecting a camera to be displayed according to the determined monitoring strategy and the shooting range of the camera around the position information of the mobile equipment, and setting to automatically display the live condition of the camera in the preset range around the mobile equipment when the route map is not configured.
104, displaying the live condition of the camera to be displayed;
the method includes the steps that monitoring contents of cameras are displayed through a display screen, single-screen or multi-screen is adopted according to the number of selected cameras, different angles and the like, the display screen is displayed in a split-screen mode, meanwhile, the cameras displaying the live scenes need to be adjusted continuously when a monitoring object and mobile equipment are continuously in the moving process, and therefore in the preferred embodiment of the application, if the mobile wheel switch control scheme further comprises a display layout, the steps display the live scenes of the cameras to be displayed according to the display layout in the mobile wheel switch control scheme, and the displayed live scenes which do not belong to the cameras to be displayed are closed.
As described in S101, in a specific application scenario, a technician may install one or more mobile devices reporting location information for a monitored object. In the case that a plurality of mobile devices are installed on the same monitored object, the technician may need to adopt different monitoring modes according to the size and the movement of the monitored object. For example, when the monitored object is a fleet of vehicles, a plurality of mobile devices may be dispersedly disposed on each vehicle of the fleet, and after acquiring the live scenes of the cameras corresponding to each mobile device through S101-S103, the technician does not necessarily need to simultaneously display the live scenes at the same time, but alternately displays the live scenes of the cameras corresponding to different mobile devices on the current display terminal. Therefore, in the preferred embodiment of the present application, when a plurality of cameras to be displayed are simultaneously screened according to the position information reported by the mobile device, the live videos of the cameras to be displayed can be displayed one by one in turn according to the display priority or the display interval preset by the technician for the mobile device; in the process of monitoring a certain monitored object, the cameras to be displayed are screened according to the position information of the mobile device of the monitored object, and the preferred embodiment may display the scenes to be displayed together according to the instruction of the technician, or divide the display priority and set the display interval according to the angle of the cameras in groups, and perform the switching display according to the display interval, which all belong to the protection scope of the present application.
In addition, along with the movement of the monitored object, the position information reported by the corresponding mobile device is also continuously changed, in order to be able to control the monitoring condition of the monitored object in real time, a technician may set a time interval in advance according to the sensitivity and importance of monitoring, so that the steps of S101-S104 may be continuously executed according to a certain period, or the technician determines whether to update the currently displayed live stream based on the position information according to the position information reported by the mobile device, and these improvements all fall within the protection scope of the present application.
By applying the video live display method provided by the application, after the position information of the mobile equipment corresponding to the monitored object is obtained, the monitoring strategy corresponding to the mobile equipment is determined, the camera to be displayed is selected from the available cameras according to the position information of the mobile equipment and the monitoring strategy, and finally the live of the camera to be displayed is displayed. Therefore, the camera scene for the alternate cutting can be flexibly and automatically selected according to the position of the monitored object, and the convenience of the monitoring work is improved on the basis of reducing the manpower consumption.
In order to further illustrate the technical idea of the present invention, the technical solution of the present invention will now be described with reference to specific application scenarios. Fig. 2 is a schematic diagram of device access networking in the embodiment of the present application. In the networking structure, one or more mobile devices with a position acquisition function are arranged on a single or a plurality of monitoring objects, and the mobile devices are accessed to a management server through corresponding access devices and report position information of the mobile devices per se periodically. Based on real-time requirements under different situations, a technician may set a reporting frequency of the location information of the mobile device according to actual conditions and device performance, for example, 1 time per second or once per minute, and a specific reporting frequency is different without affecting a protection scope of the present application.
In the schematic diagram of the networking structure in fig. 2, the location information of the mobile device is uniformly stored in the data server after being uploaded through the access device. The camera IPC is accessed to the management server, and then the management server allocates and displays each IPC according to the alternate cutting scheme selected by the user and the position information of the mobile equipment.
Based on the networking configuration, the specific embodiment of the present application is composed of two flows of mobile turn-off configuration and mobile turn-off display, wherein each flow includes the following steps:
the moving wheel cutting configuration comprises the following three steps:
step a) creating a mobile turn-by-turn scheme in which one mobile turn-by-turn scheme may involve one or more mobile devices;
step b) selecting one or more mobile devices according to a mobile round-robin scheme;
step c) configuring a display scheme of each mobile device and setting a displayed pane layout.
In order to clearly describe the above steps, the specific embodiment of the present application provides two different application scenario examples for a mobile turn-around scheme including one mobile device and a mobile turn-around scheme including two mobile devices, which will be described below:
(1) there are two moving devices A, B in one moving wheel scheme
In this particular application scenario, the technician needs to observe the live view around the mobile device A, B, so to display the live view around the mobile device A, B, the corresponding display scheme is shown in fig. 3, where for the first mobile device a, the live view of that mobile device a is displayed, the live view of one nearby camera is displayed, and the live view of the camera in front of the direction of travel is displayed; for a second mobile device B, the live view of that mobile device B is displayed, the live view of one nearby camera is displayed, and the live view of the camera behind the direction of travel is displayed.
(2) One moving wheel solution exists for a single mobile device a
In this specific application scenario, the technician needs to observe the surrounding live events of the mobile device a, and a corresponding display scheme is shown in fig. 4, in which the live events of the mobile device a and the surrounding live events thereof are displayed through a plurality of split screens.
The embodiments proposed in the present application are implemented for a wheel switch set for a static (or temporarily static) monitoring object, however, in some special situations/events (for example, monitoring the driving situation of a specific vehicle), the monitoring object is in a moving state, and the monitoring object moves according to a predetermined route pattern, in this case, if a route pattern that the mobile device can travel during receiving the wheel switch control is configured in advance in a specific embodiment, the technical solution of the present application sets the following different processing modes for different situations:
(1) setting a live scene of a camera automatically displaying a certain range around a route based on a pre-configured route map;
(2) based on a preset route map, cameras around the route are selected, and irrelevant cameras are removed according to the shooting range of the cameras. Thus, only the designated camera is called when the round-robin control is performed.
(3) If the route map is not configured in advance, the live condition of the cameras within a certain range around the camera is automatically displayed.
It should be noted that, in the above embodiments, the schemes that the cameras required in the wheel cutting control are selected in different situations and in different manners are all preferred schemes provided in the specific embodiments of the present application, and on the basis, a technician may further combine a currently displayable screen to set a plurality of display schemes and select the cameras for other numbers of mobile devices, which all belong to the protection scope of the present application.
Second, moving wheel cutting display
After the mobile wheel cutting configuration is realized through the above flow, the present embodiment realizes the mobile wheel cutting display through the following steps:
step a) the user executes a mobile round-cutting scheme;
and b) calculating cameras to be displayed by the analysis module according to the position information of the mobile equipment, and displaying the live condition of each camera according to the display layout set by the mobile station.
Corresponding to the route map scheme in the first process, in the above steps, the selection policy of the camera may adopt the following three schemes, and the corresponding analysis module performs the following processes:
(1) pre-configuring route map, setting up automatic display of camera's scene in a certain range around the route
Under the setting, the analysis module selects the cameras within a certain range around the route where the mobile device is located according to the configured parameters, and optionally, according to the shooting range of each camera, unreasonable cameras are removed, and reasonable cameras are selected.
(2) And (3) pre-configuring a route map, selecting cameras around the route, and removing irrelevant cameras according to the shooting range of the cameras. Only the designated camera is called up when the round-cutting is performed.
Under the setting, the analysis module selects a camera meeting the condition from the specified camera list according to the position of the mobile equipment.
(3) The method is characterized in that the live condition of cameras within a certain range around the camera is automatically displayed without a pre-configured route.
Under this setting, the analysis module selects cameras within a certain range around the route where the mobile device is located. In order to further improve the effect of the wheel cutting, unreasonable cameras can be removed and reasonable cameras can be selected according to the shooting range of each camera under the scheme.
The above-mentioned process is to perform the round-robin control based on the determined location information reported by the mobile device, however, in an actual scene, the monitored object may be in a state of constantly moving. Accordingly, when the mobile device updates the location information, the analysis module needs to recalculate the point locations to be displayed, and displays the live statuses of the cameras, and the specific processing steps are as follows:
step a) calculating the point location to be displayed based on the new position information according to the selection strategy of the camera;
and b) when the point location to be displayed is changed, turning off the live site of the point location which is not required to be displayed any more, searching the live site of the new point location, and displaying according to the set layout.
Through the process, the alternate switching control updating of the monitored object in the moving state is realized. However, the above-mentioned flow is implemented under an ideal state (that is, the location information of the mobile device can be acquired and updated at any time), but in an actual situation, there is a high possibility that the location information cannot be updated in time due to objective factors (such as device failure and environmental shielding). Therefore, when the mobile device enters a closed or semi-closed area or is interfered by signals, satellite signals cannot be received, which may result in a situation where the mobile device cannot update the location information. For this case, the analysis module will determine the current mobile device's speed based on whether the mobile device is moving (e.g., based on intelligent analysis of the mobile device or intelligent analysis of a back-end analysis server determining whether the mobile device's live event is moving, and obtaining vehicle speed information by the mobile device through a special interface).
Specifically, taking the mobile device C as an example, the flowchart of this embodiment is shown in fig. 5, and includes the following steps:
s501, satellite signals/signal differences are lost, and the position of the mobile equipment C is not updated;
when the positioning signals are poor, the mobile equipment acquires the speed information of the vehicle through the interface, and calculates the current position based on the current route, so that the tracking deviation caused by larger positioning information errors is reduced.
S502, the mobile device C judges whether the vehicle speed information is read or not, if yes, the current judging process is ended, and if not, the process goes to S503;
s503, judging whether the mobile equipment C is in a moving state in a live state, if so, turning to S504, and if not, turning to S505;
and S504, analyzing the moving speed of the road surface or the reference object in the live state based on the moving speed before the satellite signal/signal difference is lost, and judging the running speed of the current vehicle.
In the process of further calculating the current position according to the calculated speed, the embodiment is divided into the following two cases based on whether a route pattern is set in advance:
(1) pre-routing
And if the route is designated by the round-cutting scheme selected by the user, selecting the corresponding route according to the last reported position, fitting the route according to the speed of the current mobile equipment, and calculating the current position.
(2) Without pre-routing
And if the route is not specified by the round-trip scheme selected by the user, searching the most probable route based on the road network information of the map according to the last reported position and the driving direction, and calculating the current position according to the speed of the current mobile equipment.
S505, the mobile device C stops moving.
Based on the above-mentioned flow, when the position information of the mobile device is not updated or the satellite information signal is poor, the current position of the mobile device can be roughly determined based on the factors such as whether the mobile device moves or not, the current route of the mobile device and the like, so that the problem of tracking deviation caused by a large error of the positioning information is reduced.
Correspondingly, the present application also proposes a video live display device, as shown in fig. 6, the device specifically includes:
the acquiring module 61 acquires the position information of the mobile device corresponding to the monitored object;
a determining module 62 for determining a monitoring policy corresponding to the mobile device;
a selecting module 63, configured to select a camera to be displayed from available cameras according to the location information of each mobile device and the monitoring policy;
and the display module 64 displays the live condition of the camera to be displayed.
In a specific application scenario, the method further includes:
the initialization module is used for creating a mobile alternate switching control scheme according to a display terminal used by a user and determining the mobile equipment corresponding to the monitored object according to the selection operation of the user;
wherein the mobile turn-around control scheme at least comprises the monitoring policy, which at least comprises:
displaying a live view of the mobile device;
and/or, displaying live of a camera in the vicinity of the mobile device;
and/or, displaying live of a camera in front of a direction of travel of the mobile device;
and/or displaying the live of the camera behind the direction of travel of the mobile device.
In a specific application scenario, the dynamic wheel-cut control scheme further includes a display layout, and the display module is specifically configured to:
and displaying the live scenes of the cameras to be displayed according to the display layout in the mobile turn-over control scheme, and closing the live scenes which are displayed but not belong to the cameras to be displayed.
In a specific application scenario, the selection module is specifically configured to:
if the mobile wheel switching control scheme further comprises a preset route map, selecting the camera to be displayed within a specified range of the position information in the route map according to the monitoring strategy, or selecting the camera to be displayed according to the monitoring strategy and a shooting range of cameras around the position information in the route map;
and if the mobile wheel cutting control scheme does not comprise the route map, selecting the camera to be displayed within the appointed range of the position information according to the monitoring strategy and the shooting range of the cameras around the position information.
In a specific application scenario, the obtaining module is specifically configured to:
acquiring a positioning signal of the mobile equipment;
if the positioning signal is successfully acquired, generating the position information according to the positioning signal;
if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the movement speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not comprise a route map, determining a predicted route map according to the mobile direction information and historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map;
the mobile speed information is determined and reported after the mobile equipment acquires the speed information of the monitored object through an interface between the mobile equipment and the monitored object;
or, the moving speed information is determined according to the moving speed of the reference object relative to the monitored object in the live condition.
By applying the video live display method provided by the embodiment of the application, after the position information of the mobile equipment corresponding to the monitored object is acquired, the monitoring strategy corresponding to the mobile equipment is determined, the camera to be displayed is selected from the available cameras according to the position information of the mobile equipment and the monitoring strategy, and finally the live of the camera to be displayed is displayed. Therefore, the camera scene for the alternate cutting can be flexibly and automatically selected according to the position of the monitored object, and the convenience of the monitoring work is improved on the basis of reducing the manpower consumption.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present invention.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above-mentioned invention numbers are merely for description and do not represent the merits of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. A method for live video display, comprising:
acquiring position information of mobile equipment corresponding to a monitored object;
determining a monitoring policy corresponding to the mobile device;
selecting a camera to be displayed from available cameras according to the position information of each mobile device and the monitoring strategy;
displaying the live condition of the camera to be displayed;
before the position information of the mobile device corresponding to the monitored object is obtained, the method further includes:
creating a mobile alternate cutting control scheme according to a display terminal used by a user, wherein the mobile alternate cutting control scheme at least comprises the monitoring strategy;
determining the mobile equipment corresponding to the monitored object according to the selection operation of the user;
wherein the monitoring policy at least comprises:
displaying a live view of the mobile device;
and/or, displaying live of a camera in the vicinity of the mobile device;
and/or, displaying live of a camera in front of a direction of travel of the mobile device;
and/or, displaying a live view of a camera behind a direction of travel of the mobile device;
the acquiring of the position information of the mobile device corresponding to the monitored object includes:
acquiring a positioning signal of the mobile equipment;
if the positioning signal is successfully acquired, generating the position information according to the positioning signal;
if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the movement speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not include a route map, determining a predicted route map according to the mobile direction information and the historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map.
2. The method of claim 1, wherein the moving speed information is determined and reported by the mobile device after acquiring the speed information of the monitoring object through an interface with the monitoring object;
or, the moving speed information is determined according to the moving speed of the reference object relative to the monitored object in the live condition.
3. The method according to claim 1 or 2, wherein the moving round-off control scheme further comprises a display layout for displaying the live view of the camera to be displayed, specifically:
and displaying the live scenes of the cameras to be displayed according to the display layout in the mobile turn-over control scheme, and closing the live scenes which are displayed but not belong to the cameras to be displayed.
4. The method according to claim 3, wherein the cameras to be displayed are selected from available cameras according to the location information of each of the mobile devices and the monitoring policy, specifically:
if the mobile wheel switching control scheme further comprises a preset route map, selecting the camera to be displayed within a specified range of the position information in the route map according to the monitoring strategy, or selecting the camera to be displayed according to the monitoring strategy and a shooting range of cameras around the position information in the route map;
and if the mobile wheel cutting control scheme does not comprise the route map, selecting the camera to be displayed in the appointed range of the position information according to the monitoring strategy and the shooting range of the cameras around the position information.
5. A video live display device, comprising:
the acquisition module acquires the position information of the mobile equipment corresponding to the monitored object;
a determining module that determines a monitoring policy corresponding to the mobile device;
the selection module is used for selecting a camera to be displayed from available cameras according to the position information of each piece of mobile equipment and the monitoring strategy;
the display module is used for displaying the live condition of the camera to be displayed;
the initialization module is used for creating a mobile alternate switching control scheme according to a display terminal used by a user and determining the mobile equipment corresponding to the monitored object according to the selection operation of the user;
wherein the mobile turn-around control scheme at least comprises the monitoring policy, which at least comprises:
displaying a live view of the mobile device;
and/or, displaying live of a camera in the vicinity of the mobile device;
and/or, displaying live of a camera in front of a direction of travel of the mobile device;
and/or, displaying a live view of a camera behind a direction of travel of the mobile device;
the acquisition module executes the following operations when acquiring the position information of the mobile device corresponding to the monitored object:
acquiring a positioning signal of the mobile equipment;
if the positioning signal is successfully acquired, generating the position information according to the positioning signal;
if the positioning signal is in a poor state or in a lost state, and the mobile wheel switching control scheme further comprises a route map, determining the position information according to the movement speed information of the mobile equipment, the route map and the historical position information of the mobile equipment;
if the positioning signal is in a poor state or in a lost state and the mobile wheel switching control scheme does not include a route map, determining a predicted route map according to the mobile direction information and the historical position information reported by the mobile equipment, and determining the position information according to the mobile speed information of the mobile equipment and the predicted route map.
6. The device according to claim 5, wherein the obtaining module is further configured to obtain the moving speed information, where the moving speed information is determined and reported by the mobile device after obtaining the speed information of the monitoring object through an interface with the monitoring object;
or, the moving speed information is determined according to the moving speed of the reference object relative to the monitored object in the live condition.
7. The device of claim 5 or 6, wherein the moving wheel switch control scheme further comprises a display layout, the display module being specifically configured to:
and displaying the live scenes of the cameras to be displayed according to the display layout in the mobile turn-over control scheme, and closing the live scenes which are displayed but not belong to the cameras to be displayed.
8. The device of claim 7, wherein the selection module is specifically configured to:
if the mobile wheel switching control scheme further comprises a preset route map, selecting the camera to be displayed within a specified range of the position information in the route map according to the monitoring strategy, or selecting the camera to be displayed according to the monitoring strategy and a shooting range of cameras around the position information in the route map;
and if the mobile wheel cutting control scheme does not comprise the route map, selecting the camera to be displayed within the appointed range of the position information according to the monitoring strategy and the shooting range of the cameras around the position information.
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| JP6870584B2 (en) * | 2017-11-13 | 2021-05-12 | トヨタ自動車株式会社 | Relief systems and methods, as well as the servers and programs used for them. |
| JP7000805B2 (en) * | 2017-11-13 | 2022-01-19 | トヨタ自動車株式会社 | Animal rescue systems and methods, as well as the servers and programs used in them. |
| CN110933361B (en) * | 2018-09-19 | 2021-07-20 | 浙江宇视科技有限公司 | Wheel patrol display method and device |
| CN109151396B (en) * | 2018-10-18 | 2021-04-27 | 张建 | Method for controlling video polling by weight based on image comparison calculation |
| CN109345858B (en) * | 2018-10-30 | 2024-01-26 | 北京汽车集团有限公司 | Motorcade monitoring system |
| CN110740295B (en) * | 2019-09-30 | 2021-08-13 | 视联动力信息技术股份有限公司 | Round-robin playing method and device for video stream monitored by video network |
| CN110730333A (en) * | 2019-10-23 | 2020-01-24 | 深圳震有科技股份有限公司 | Monitoring video switching processing method and device, computer equipment and medium |
| CN111540023B (en) * | 2020-05-15 | 2023-03-21 | 阿波罗智联(北京)科技有限公司 | Monitoring method and device of image acquisition equipment, electronic equipment and storage medium |
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