CN111246295A - Method and device for playing video by vehicle and unmanned vehicle - Google Patents
Method and device for playing video by vehicle and unmanned vehicle Download PDFInfo
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- CN111246295A CN111246295A CN202010046198.2A CN202010046198A CN111246295A CN 111246295 A CN111246295 A CN 111246295A CN 202010046198 A CN202010046198 A CN 202010046198A CN 111246295 A CN111246295 A CN 111246295A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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Abstract
The application relates to a method and a device for playing videos by a vehicle and an unmanned vehicle, which are applied to the technical field of unmanned vehicles, unmanned driving, automatic driving and other vehicle unmanned driving, and people group information around the vehicle is obtained; automatically selecting playing devices based on the obtained crowd information, wherein the playing devices at least comprise two playing devices, and the two playing devices are positioned at different positions or directions of the vehicle; and controlling the selected playing equipment to play the video to the crowd. The invention solves the problem that the on-off of the playing equipment can not be controlled according to the information such as crowd density, position, distance and the like at present, solves the problems of low use efficiency and energy consumption of the current video playing in the whole time period, reasonably controls the on-off and the sound size and distribution of the video playing equipment and provides the use efficiency of the playing equipment.
Description
Technical Field
The invention relates to the technical field of video playing control, is applied to the fields of unmanned vehicles, unmanned driving, automatic driving and the like, in particular to a method and a device for playing videos by a vehicle, and also relates to an unmanned vehicle based on a method and a device for regularly playing videos.
Background
The mobile advertising vehicle is widely used for propaganda, product promotion, brand promotion, on-site display, sports events, concerts, show-selecting activities and the like of enterprises and public institutions. The advertisement board can also be displayed, exchanged and interacted with audiences or consumers on site in areas such as luxurious commercial areas, squares, residential quarters, square parks and the like, has wide publicity range and can ensure that the customers obtain the maximum advertisement spreading effect.
Along with the development of mobile vehicle broadcast advertisement or notice or early warning technique, the video or the loudspeaker broadcast on traditional vehicle is unified switch at present, no matter be several equipment, only opens all equipment and broadcast in unison, can not play to surrounding crowd's position and distance orientation, and the following problem exists in present mode:
firstly, the video is played in a full time period, the use efficiency is low, the energy is consumed, the noise pollution is caused, and the situation of disturbing residents is caused more or less.
Secondly, the playing and volume control of the playing equipment can not be controlled in a targeted manner according to the crowd information;
thirdly, the existing playing device cannot macroscopically acquire people stream data in a certain area, and the playing pertinence is not strong.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the application provides a method and a device for playing videos by a vehicle and an unmanned vehicle, and solves the problems that the existing videos are played in a full time period, the use efficiency is low, energy is consumed, and the directional playing of video equipment cannot be controlled according to information such as crowd density, positions and distances.
To achieve the above object, according to a first aspect of embodiments of the present invention, there is provided a method for playing a video in a vehicle, the method including the steps of:
obtaining crowd information around a vehicle;
automatically selecting playing devices based on the obtained crowd information, wherein the playing devices at least comprise two playing devices, and the two playing devices are positioned at different positions or directions of the vehicle;
and controlling the selected playing equipment to play the video to the crowd.
Further, the crowd information includes one or more of position information, distance information, density information, and crowd biometric information of the crowd around the vehicle.
Further, the step of automatically selecting the playing device based on the obtained crowd information is specifically to automatically select the crowd information meeting the preset requirement based on the crowd information, and automatically select the corresponding playing device based on the crowd information meeting the preset requirement.
Further, the step of controlling the selected playing device to play the video to the crowd further comprises adjusting the content of the video based on the crowd information.
Furthermore, there are two ways to obtain the crowd information;
the first one is: collecting a panoramic picture around the vehicle by using an image collecting device, and analyzing one or more combined information of position information, distance information, density information and biological characteristic information of the crowd in the panoramic picture;
the second method is as follows: the infrared sensor is used for collecting one or more combined information of position information, distance information, density information and crowd biological characteristic information of crowds around the vehicle.
Further, the step of obtaining the crowd information around the vehicle is to periodically collect the crowd information around the vehicle.
According to a second aspect of the embodiments of the present application, there is provided an apparatus for playing a video in a vehicle, the apparatus comprising:
a crowd information acquiring unit for acquiring crowd information around the vehicle;
a selection unit for automatically selecting a playback device based on the obtained crowd information;
and the playing control unit is used for controlling the selected playing equipment to play the video to the crowd.
Further, the system further comprises a crowd screening unit, wherein the crowd screening unit is used for screening the crowd meeting the preset requirement from the crowd information acquired by the crowd information acquiring unit.
Further, the crowd information acquired by the crowd information acquiring unit includes one or a combination of two or more of position information, distance information, density information and crowd biological characteristic information of the crowd around the vehicle.
Further, the crowd information acquiring unit periodically acquires crowd information around the vehicle; the selection unit selects a playback device and the content of the video according to the acquired crowd information around the vehicle.
According to a third aspect of the embodiments of the present application, there is provided an unmanned vehicle, where the unmanned vehicle implements playing of a video by using the above method for playing a video by a vehicle.
According to the technical scheme, the playing equipment is automatically selected based on the obtained crowd information, the number of the playing equipment is at least two, and the at least two playing equipment are located at different positions or directions of the vehicle; and controlling the selected playing equipment to play the video to the crowd. According to the invention, the crowd information meeting the preset requirement is automatically selected based on the crowd information, and the corresponding playing equipment is automatically selected based on the crowd information meeting the preset requirement. The invention solves the problem that the video equipment can not be controlled to be switched on and switched off according to the information such as the crowd density, the position, the distance and the like at present, solves the problems of low use efficiency and energy consumption of the current video playing in the whole time period, reasonably controls the on and off of the video playing equipment and the size and distribution of sound, and provides the use efficiency of the playing equipment.
The unmanned vehicle provided by the invention is not limited by geographical positions, and can be used for deeply and widely propagandizing in any target market areas required by customers such as avenues, alleys, communities, commercial areas and the like according to the requirements of the customers. The method can shuttle back and forth to fixed lines all day long according to the requirements of customers, or automatically select propaganda lines, gets rid of the constraint of geographic environment, and has the characteristics of strong mobility and wide audience range.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a flow chart of a method for playing video by a vehicle according to the present invention;
FIG. 2 is a first embodiment of a method for playing video by a vehicle according to the present invention;
FIG. 3 is a second embodiment of a method for playing video by a vehicle according to the present invention;
FIG. 4 is a schematic diagram of a system for playing video in a vehicle according to the present invention;
FIG. 5 is a first exemplary embodiment of a video playback device for a vehicle according to the present invention;
fig. 6 is a second embodiment of the apparatus for playing video in a vehicle according to the present invention.
In the figure: 1. a crowd information acquiring unit; 11. an image acquisition device; 12. a crowd information identification module; 13. an infrared sensor; 2. a selection unit; 3. a play control unit; 4. and a crowd screening unit.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
As shown in fig. 1, a first aspect of the present embodiment provides a method for playing a video in a vehicle, where the method includes the following steps:
s1, acquiring crowd information around the vehicle;
s2, automatically selecting playing devices based on the obtained crowd information, wherein the playing devices at least comprise two playing devices, and the two playing devices are positioned at different positions or directions of the vehicle;
and S3, controlling the selected playing device to play the video to the crowd.
In this embodiment, in the step of obtaining the crowd information around the vehicle, the obtained crowd information includes one or more combined information of position information, distance information, density information, and crowd biometric information of the crowd around the vehicle. The step of automatically selecting the playing device based on the obtained crowd information is specifically to automatically select crowd information meeting preset requirements based on the crowd information and automatically select a corresponding playing device based on the crowd information meeting the preset requirements. The step of controlling the selected playback device to play the video to the crowd further comprises adjusting the content of the video based on the crowd information.
In this embodiment, two ways of obtaining group information are provided, the first way is: collecting a panoramic picture around the vehicle by using an image collecting device, and analyzing one or more combined information of position information, distance information, density information and biological characteristic information of the crowd in the panoramic picture;
the second method is as follows: the infrared sensor is used for collecting one or more combined information of position information, distance information, density information and crowd biological characteristic information of crowds around the vehicle.
To further detail the present invention, as shown in fig. 2, a specific embodiment is provided, in step S11, first, a panoramic image around the vehicle is periodically captured by the image capturing device, and the crowd information in the panoramic image is analyzed;
and S12, automatically selecting the crowd information meeting the preset requirement based on the crowd information.
And S13, automatically selecting corresponding playing equipment based on the crowd information meeting the preset requirements.
In another specific embodiment, as shown in fig. 3, in step S21, people information around the vehicle is first collected periodically by using the sensor. The sensors in this embodiment include infrared sensors, life detectors, and other sensing devices that can be used to collect crowd information, which are not listed here.
And S22, automatically selecting the crowd information meeting the preset requirement based on the crowd information.
And S23, automatically selecting corresponding playing equipment based on the crowd information meeting the preset requirements.
It should be added that, in this embodiment, the playing devices arranged around the vehicle include a video playing device and a sound playing device; in the step of automatically selecting the play mode based on the obtained crowd information, the automatically selected play mode is as follows: automatically selecting video playing equipment and sound playing equipment which are positioned in a visible area of the crowd position based on the crowd position; matching the video playing content and the corresponding sound based on the crowd information.
For example, four advertisement display screens are arranged around a vehicle, and when only a crowd exists on the left side, the advertisement display screen on the left side and the corresponding sound playing equipment are selected to be opened; when the crowd exists on the right side and the back side, the advertisement display screens and the corresponding sound playing devices on the right side and the back side are selected to be turned on. The direction and amount of opening of the advertising display is determined by the population of people around the vehicle. In the invention, the played content can be correspondingly adjusted according to the acquired crowd information, the crowd information around the vehicle is periodically acquired at preset intervals, and corresponding playing equipment is automatically selected according to the updated crowd information so as to output the matched played content to the crowd.
It should be noted that, in the embodiments provided in fig. 2 and fig. 3, the crowd information in the present embodiment includes one or a combination of two or more of position information, distance information, density information, and crowd biometric information of the crowd around the vehicle. More than one person may exist around the vehicle, and the persons are scattered or concentrated, and information such as the position, the distance and the crowding degree of the crowd in the space are obtained by taking the vehicle as the center; meanwhile, the characteristics of the crowd can be further analyzed according to the needs, such as height, gender, age, wearing, posture and the like, so that the biological characteristic information of the crowd can be obtained.
For example, when unmanned vehicle is in comparatively spacious place such as square, crowd's dense degree information and crowd's biological characteristic information can regard as the preferred condition of first grade, discern the higher crowd of a certain dense degree, average age is more than 50 years old, do unified action, that to a great extent is that a group grand mother dances in jumping square, play direction alignment grand mother of control video playback equipment and sound playback equipment in this time, can play certain supermarket/market promotion discount activity advertisement, realize comparatively accurate broadcast. Certainly as an optimal mode, unmanned vehicle can receive and record the ambient sound at that time, extracts and does voice analysis, for example, the square dance song of grand is A song at present, and unmanned vehicle passes through self system or requests cloud service analysis song A with the voice of extracting, and the video playback equipment on unmanned vehicle plays corresponding song video, plays corresponding song music through sound playback equipment simultaneously to increase the interaction with the customer.
In the following steps: the unmanned vehicle identifies a child, the biological feature information of the crowd such as height, age and the like can be used as the preferred condition of the first grade, the sound playing device can be controlled to aim at the child to directionally play contents such as cartoon videos and the like, and the volume is controlled according to the distance between the child and the child.
The above-mentioned scene is only a supplementary explanation, and is not a limitation to the protection scope of the present invention, and preset requirements meeting different scenes can be preset according to target people.
Most of sound boxes heard at ordinary times radiate sound waves in 360 degrees, the sound waves are extremely easy to attenuate when being propagated in air, the transmission distance is short, and when the audible sound waves reach audiences, the sound intensity is weak, so that the speech definition is influenced. Meanwhile, the sound waves transmitted by the sound box almost have no directivity, so that the problem of people disturbance is easily caused. How to effectively solve the directional propagation of good sound waves.
The first mode is as follows: the directivity is enhanced by using the sound cover, and the large hemispherical sound gathering cover is covered on the high-frequency loudspeaker; since the focus mask has a strong directivity, it is necessary to provide several tweeters with focus masks at the periphery of the unmanned vehicle so as to form an annular enclosure, or to provide the tweeters with focus masks rotatably at 360 °.
The second way is: a special directional loudspeaker array is adopted; the directional loudspeaker firstly loads the low-frequency signal on the high-frequency signal with strong directivity, then the high-frequency signal is amplified and emitted into the air, then the air can filter the high-frequency signal, the audible sound signal on the high-frequency signal can be naturally filtered out, and the directional propagation like light rays is realized.
The third mode is as follows: the ultrasonic loudspeaker is used for enhancing the directivity, and the purpose of directional sound wave propagation is realized by utilizing the strong directivity of ultrasonic waves. Ultrasonic waves have higher frequency, shorter wavelength, less possibility of diffraction, smaller pointing angle and better directivity, and audible sound waves have lower frequency and longer wavelength and are easy to diffract, so that obstacles in the propagation process are bypassed. Similarly, the ultrasonic wave speaker has a strong directivity, and if this is adopted, it is necessary to provide a plurality of ultrasonic wave speakers in the periphery of the unmanned vehicle so as to form an annular enclosure, or to set the ultrasonic wave speakers to be rotatable by 360 °.
It should be added that, in the present embodiment, the sound playing apparatus may adopt any one of the above or adopt a combination thereof.
Therefore, the sound playing device in this embodiment includes a directional speaker array, a focus mask directional speaker or/and an ultrasonic directional horn. The sound playing device may play sound towards the specific crowd direction based on the acquired specific crowd position using the directional speaker array.
As shown in fig. 4, according to a second aspect of the embodiments of the present application, there is provided an apparatus for playing a video in a vehicle, the apparatus including:
a crowd information acquiring unit 1 for acquiring crowd information around a vehicle;
a selection unit 2 for automatically selecting a playback device based on the obtained crowd information;
and the playing control unit 3 is used for controlling the selected playing equipment to play the video to the crowd.
As shown in fig. 5, a specific system apparatus embodiment is provided, where the crowd information acquiring unit 1 includes an image capturing device 11 and a crowd information identifying module 12, where the image capturing device 11 is configured to use a panoramic picture of the surroundings of a vehicle; the crowd information identification module 12 is configured to analyze one or more combined information of position information, distance information, density information, and crowd biological characteristic information of the crowd from the panoramic image. The crowd information acquired by the crowd information acquiring unit 1 includes one or more of position information, distance information, density information and crowd biological characteristic information of the crowd around the vehicle.
As shown in fig. 6, in this embodiment, another specific system and apparatus implementation is provided, in which the crowd information acquiring unit 1 acquires, for the infrared sensor 13, information of one or a combination of two or more of position information, distance information, density information, and crowd biometric information of a crowd around a vehicle.
As shown in the embodiments of fig. 5 and 6, the system further includes a crowd screening unit 4, where the crowd screening unit 4 is configured to screen out a crowd meeting a preset requirement from the crowd information acquired by the crowd information acquiring unit 1. The selection unit 2 automatically selects a playing device based on the acquired crowd information; and controlling the selected playing equipment to play the video to the crowd through the playing control unit 3. The method for presetting the request in the device is the same as that described above, and is not described herein again.
It should be added that, in the present embodiment, the crowd information acquiring unit periodically acquires crowd information around the vehicle; the selection unit selects a playback device and the content of the video according to the acquired crowd information around the vehicle. The playing direction and the volume of the sound playing equipment are adjusted in real time so as to directionally play the sound to the crowd, the sound is played in a targeted manner, noise pollution is avoided, and the condition of disturbing residents is avoided.
In addition, the invention selects the crowd meeting the preset requirement according to the acquired crowd information around the vehicle. Obtaining information such as the position, the direction and the distance of a space position where a crowd is located and the crowd density by taking a vehicle as a center; meanwhile, the characteristics of the crowd can be further analyzed according to the needs, such as height, gender, age, wearing, posture and the like, so that the biological characteristic information of the crowd can be obtained. In addition, the sound of the scene can be collected to be used as an auxiliary judgment for the use state of the current scene, so that the preset requirement can be set more humanizedly. Different preset conditions can be set according to different scenes. And then, controlling the playing direction and the volume of the playing equipment according to the selected crowd so as to directionally play the sound to the crowd.
The method comprises the steps that playing equipment is automatically selected based on obtained crowd information, wherein the number of the playing equipment is at least two, and the at least two playing equipment are located at different positions or directions of a vehicle; and controlling the selected playing equipment to play the video to the crowd. According to the invention, the crowd information meeting the preset requirement is automatically selected based on the crowd information, and the corresponding playing equipment is automatically selected based on the crowd information meeting the preset requirement. The invention solves the problem that the video equipment can not be controlled to be switched on and switched off according to the information such as the crowd density, the position, the distance and the like at present, solves the problems of low use efficiency and energy consumption of the current video playing in the whole time period, reasonably controls the on and off of the video playing equipment and the size and distribution of sound, and provides the use efficiency of the playing equipment.
According to a third aspect of the embodiments of the present application, there is provided an unmanned vehicle, where the unmanned vehicle implements playing of a video by using the above method for playing a video by a vehicle.
The unmanned vehicle provided by the invention is not limited by geographical positions, and can be used for deeply and widely propagandizing in any target market areas required by customers such as avenues, alleys, communities, commercial areas and the like according to the requirements of the customers. The method can shuttle back and forth to fixed lines all day long according to the requirements of customers, or automatically select propaganda lines, gets rid of the constraint of geographic environment, and has the characteristics of strong mobility and wide audience range.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (11)
1. A method for playing a video in a vehicle, comprising: the method comprises the following steps:
obtaining crowd information around a vehicle;
automatically selecting playing devices based on the obtained crowd information, wherein the playing devices at least comprise two playing devices, and the two playing devices are positioned at different positions or directions of the vehicle;
and controlling the selected playing equipment to play the video to the crowd.
2. The method for playing video in a vehicle according to claim 1, wherein: the crowd information comprises one or more combined information of position information, distance information, density information and crowd biological characteristic information of crowds around the vehicle.
3. The method for playing video in a vehicle according to claim 2, wherein: the step of automatically selecting the playing device based on the obtained crowd information is specifically to automatically select crowd information meeting preset requirements based on the crowd information and automatically select a corresponding playing device based on the crowd information meeting the preset requirements.
4. The method for playing video in a vehicle according to claim 2, wherein: the step of controlling the selected playback device to play the video to the crowd further comprises adjusting the content of the video based on the crowd information.
5. The method for playing the video in the vehicle according to any one of claims 1 to 3, wherein: there are two ways to obtain the crowd information;
the first one is: collecting a panoramic picture around the vehicle by using an image collecting device, and analyzing one or more combined information of position information, distance information, density information and biological characteristic information of the crowd in the panoramic picture;
the second method is as follows: the infrared sensor is used for collecting one or more combined information of position information, distance information, density information and crowd biological characteristic information of crowds around the vehicle.
6. The method for playing video in a vehicle according to claims 1 to 5, wherein: the step of obtaining the crowd information around the vehicle is specifically to periodically collect the crowd information around the vehicle.
7. An apparatus for playing video in a vehicle, comprising: the device comprises:
a crowd information acquiring unit for acquiring crowd information around the vehicle;
a selection unit for automatically selecting a playback device based on the obtained crowd information;
and the playing control unit is used for controlling the selected playing equipment to play the video to the crowd.
8. The apparatus for playing video in a vehicle according to claim 7, wherein: the crowd screening unit is used for screening the crowd meeting the preset requirement from the crowd information acquired by the crowd information acquisition unit.
9. The vehicle video playing device according to claim 7, wherein: the crowd information acquired by the crowd information acquiring unit comprises one or more combined information of position information, distance information, density information and crowd biological characteristic information of crowd around the vehicle.
10. The apparatus for playing video in a vehicle according to any one of claims 7 to 11, wherein: the crowd information acquisition unit periodically acquires crowd information around the vehicle; the selection unit selects a playback device and the content of the video according to the acquired crowd information around the vehicle.
11. An unmanned vehicle, characterized in that: the unmanned vehicle realizes the playing of the video by adopting the method for playing the video by the vehicle as claimed in any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010046198.2A CN111246295A (en) | 2020-01-16 | 2020-01-16 | Method and device for playing video by vehicle and unmanned vehicle |
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| CN202010046198.2A CN111246295A (en) | 2020-01-16 | 2020-01-16 | Method and device for playing video by vehicle and unmanned vehicle |
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