CN108900733B - Shooting equipment, synchronous shooting system and method - Google Patents
Shooting equipment, synchronous shooting system and method Download PDFInfo
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- CN108900733B CN108900733B CN201810722898.1A CN201810722898A CN108900733B CN 108900733 B CN108900733 B CN 108900733B CN 201810722898 A CN201810722898 A CN 201810722898A CN 108900733 B CN108900733 B CN 108900733B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04N5/04—Synchronising
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Abstract
The invention provides a shooting device, a synchronous shooting system and a synchronous shooting method. Therefore, the control unit of the application sends the power line signals which can be used for controlling the shooting equipment to execute the shooting operation to each shooting equipment in the power line transmission mode, so that each shooting equipment carries out synchronous shooting operation according to the synchronous clock signals in the power line signals, the deployment cost and the deployment difficulty of the control unit are effectively reduced compared with the prior art, and the control unit is convenient for constructing corresponding three-dimensional visual images according to the images synchronously shot by the shooting equipment subsequently.
Description
Technical Field
The present invention relates to electronic technologies, and in particular, to a shooting device, a synchronous shooting system, and a synchronous shooting method.
Background
In recent years, with the development of new retail fields, various forms of offline retail models such as unmanned retail machines and unmanned retail stores have appeared. In order to ensure the controllability of retail and the safety of goods in unmanned retail machines and unmanned retail stores, maintenance personnel need to arrange a plurality of shooting devices near each unmanned retail machine or in the unmanned retail stores, and construct corresponding three-dimensional visual images according to the images shot by the shooting devices, so as to supervise or monitor the operation conditions of the unmanned retail machines or the unmanned retail stores according to the three-dimensional visual images.
Generally, constructing a three-dimensional visual image requires acquiring images taken by a plurality of photographing apparatuses at the same time. Therefore, in the prior art, in order to control each shooting device to perform synchronous shooting, a dedicated signal line is disposed on each shooting device, and each shooting device receives a shooting signal from the control unit through the signal line, so as to perform synchronous shooting.
However, since each shooting device needs to be deployed with a signal line, the deployment cost and the deployment difficulty of each shooting device increase with the increase of the number of the shooting devices, which is not favorable for further popularization and development of the unmanned retail model.
Disclosure of Invention
The invention provides a shooting device, a synchronous shooting system and a synchronous shooting method, aiming at the problem that in the prior process of synchronous shooting by adopting a plurality of shooting devices, because each shooting device needs to be provided with a signal wire, the arrangement cost and the arrangement difficulty of each shooting device are increased along with the increase of the number of the shooting devices.
In one aspect, the present invention provides a synchronous shooting system, including: the device comprises a plurality of shooting devices and a control unit which is electrically connected with each shooting device through a power line;
the control unit sends power line signals comprising synchronous clock signals to the plurality of shooting devices through the power lines respectively;
the plurality of photographing apparatuses perform a photographing operation upon receiving the synchronized clock signal.
In an alternative embodiment, the control unit further comprises an infrared signal transmitter;
and the infrared signal emitter of the control unit sends the infrared signals comprising the synchronous clock signals to the plurality of shooting devices respectively.
In an optional implementation manner, the synchronized shooting system further includes: a server electrically connected to the control unit through a power line;
the server is used for generating a synchronous clock signal and coupling the synchronous clock signal to the power line signal according to a preset first carrier frequency, so that the control unit can receive the synchronous clock signal and forward the power line signal sent by the server to each shooting device.
In an optional implementation manner, the server is further configured to generate a control signal according to an operation instruction triggered by a user, and couple the control signal to the power line signal according to a preset second carrier frequency;
correspondingly, each shooting device is further used for executing corresponding operation according to the control signal.
In an optional implementation manner, each shooting device is connected with the server through a wireless local area network;
the server is also used for generating a control signal according to an operation instruction triggered by a user and sending the control signal to each shooting device through a wireless local area network;
correspondingly, each shooting device is further used for executing corresponding operation according to the control signal.
In an optional implementation manner, after the shooting operation is completed, each shooting device sends an image obtained by shooting to the server through a wireless local area network;
correspondingly, the server is also used for constructing a three-dimensional visual image according to the synchronous clock signal and the images obtained by shooting.
In another aspect, the present invention provides a photographing apparatus including: the shooting equipment is electrically connected with the control unit through a power line;
wherein the photographing apparatus includes: a signal extraction unit and a shooting unit;
the signal extraction unit is used for extracting a synchronous clock signal in the power line signal when the shooting device receives the power line signal sent by the control unit, so that the shooting unit executes shooting operation according to the synchronous clock signal.
In one optional embodiment, the shooting device further comprises an infrared signal receiver;
the infrared signal receiver is used for extracting a synchronous clock signal in the infrared signal when receiving the infrared signal sent by the control unit, so that the shooting unit executes shooting operation according to the synchronous clock signal.
In an optional implementation manner, the signal extraction unit is further configured to extract a control signal in the power line signal, so that the shooting unit performs a corresponding operation according to the control instruction.
In an optional embodiment, the photographing apparatus further includes: a wireless network connection unit;
the wireless network connection unit is connected with a server through a wireless local area network and used for sending the images obtained by shooting by the shooting unit to the server through the wireless local area network so that the server can construct three-dimensional visual images according to the synchronous clock signals and the images obtained by shooting.
In an optional implementation manner, the wireless network connection unit is configured to receive a control signal sent by the server, so that the shooting unit performs a corresponding operation according to the control signal.
In another aspect, the present invention provides a synchronous shooting method, which is applied to any one of the synchronous shooting systems, and the method includes:
the control unit sends power line signals comprising synchronous clock signals to the plurality of shooting devices through the power lines respectively;
the plurality of photographing apparatuses perform a photographing operation upon receiving the synchronized clock signal.
In a final aspect, the present invention provides a synchronous shooting method, which is applied to the shooting device of any one of the preceding claims, and includes:
receiving a power line signal sent by a control unit;
extracting a synchronous clock signal in the power line signal;
and executing shooting operation according to the synchronous clock signal.
The invention provides a shooting device, a synchronous shooting system and a synchronous shooting method. Therefore, the control unit of the application sends the power line signals which can be used for controlling the shooting equipment to execute the shooting operation to each shooting equipment in the power line transmission mode, so that each shooting equipment carries out synchronous shooting operation according to the synchronous clock signals in the power line signals, the deployment cost and the deployment difficulty of the control unit are effectively reduced compared with the prior art, and the control unit is convenient for constructing corresponding three-dimensional visual images according to the images synchronously shot by the shooting equipment subsequently.
Drawings
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Fig. 1 is a schematic structural diagram of a synchronous shooting system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shooting device according to a second embodiment of the present invention;
fig. 3 is a schematic flowchart of a synchronous shooting method according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a synchronous shooting method according to a fourth embodiment of the present invention.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In recent years, with the development of new retail fields, various forms of offline retail models such as unmanned retail machines and unmanned retail stores have appeared. In order to ensure the controllability of retail and the safety of goods in unmanned retail machines and unmanned retail stores, maintenance personnel need to arrange a plurality of shooting devices near each unmanned retail machine or in the unmanned retail stores, construct corresponding three-dimensional visual images according to the images shot by the shooting devices, and supervise or monitor the operation conditions of the unmanned retail machines or the unmanned retail stores by using the three-dimensional visual images.
Generally, constructing a three-dimensional visual image requires acquiring images captured by a plurality of photographing apparatuses at the same time. Taking the aforementioned unmanned retail machine as an example, for any one of the shelves of the unmanned retail machine, a plurality of shooting devices are required to shoot, and each shooting device should shoot the shelf of the unmanned retail machine at a different shooting angle. And establishing a three-dimensional visual image of the unmanned retail rack on the shooting equipment by utilizing the images of the shooting angles shot by the shooting equipment at the same shooting moment. Therefore, in order to ensure the accuracy and reality of the created three-dimensional visual image, how to obtain images photographed by the respective photographing apparatuses at the same time becomes a problem.
In order to acquire images at the same time, in one of the prior art, each shooting device in an unmanned retail machine or an unmanned retail store can adopt asynchronous shooting, and timestamp information of the shooting time is marked in the images at the same time of shooting so as to determine the shooting time of the images and construct corresponding three-dimensional visual images. However, the time accuracy of the asynchronous shooting mode is low, which is generally in the order of seconds, and when the three-dimensional visual image is constructed by using the image acquired in such a mode, the timeliness of the acquired three-dimensional visual image is low, and the accuracy is not satisfactory.
In order to improve the timeliness and the accuracy of the three-dimensional visual image, a technology for synchronously shooting by various shooting devices is provided. Specifically, a dedicated signal line is disposed on each of the photographing apparatuses, and each photographing apparatus is connected to the control unit through the signal line, so that the photographing apparatuses can simultaneously receive a control photographing signal from the control unit and perform a photographing operation according to the control photographing signal.
However, in this way, a signal line connected to the control unit needs to be disposed on each of the photographing apparatuses, and the number of photographing apparatuses in the unmanned retail machine or the unmanned retail store is large, which is costly to dispose. Particularly, when the existing shooting equipment in the existing retail machine or retail store needs to be modified, the difficulty of adding the signal line is high, and the further popularization and development of the unmanned retail mode are not facilitated.
The invention provides a shooting device, a synchronous shooting system and a synchronous shooting method, aiming at the problem that in the prior art, in the process of synchronous shooting by adopting a plurality of shooting devices, each shooting device needs to be provided with a signal wire, and the arrangement cost and the arrangement difficulty of each shooting device are increased along with the increase of the number of the shooting devices.
Fig. 1 is a schematic structural diagram of a synchronous shooting system according to an embodiment of the present invention, and as shown in fig. 1, the synchronous shooting system includes: a plurality of photographing devices 11 and a control unit 12 electrically connected to each photographing device 11 through a power line, respectively.
Wherein the control unit 12 sends power line signals including the synchronous clock signal to the plurality of photographing devices 11 through the power line, respectively;
the plurality of photographing apparatuses 11 perform a photographing operation upon receiving the synchronized clock signal.
In the synchronous shooting system provided in the present application, the control unit 12 may be a physical device including components such as a processor, a memory, a logic circuit, and a chip set, which are provided independently of the respective shooting devices 11, such as a controller, a relay, and a control base station, or may be a control chip provided in any one of the shooting devices 11. Of course, it is connected to each photographing apparatus 11 through a power line regardless of whether it is provided separately from the photographing apparatus 11.
In this embodiment, the settings of the multiple shooting devices 11 in the synchronous shooting system can be set according to actual use requirements, and taking the aforementioned unmanned retail machine as an example, for each retail shelf in the unmanned retail machine, multiple shooting devices 11 can be set so that each shooting device 11 can shoot and acquire images of the retail shelf at different angles; of course, when a large application scene such as an unmanned retail store is faced, a large number of photographing devices 11 are required to be provided for better constructing a three-dimensional visual image. In addition, the synchronous shooting system provided by the embodiment can also be applied to scenes other than the field of unmanned retail, such as monitoring and security of public places, simulation of city planning and the like.
Specifically, each of the photographing devices 11 and the control unit 12 in the present embodiment need to be connected to the same power network and generally need to be connected to the power network regardless of whether or not the photographing device 11 needs to be synchronously controlled, and the present embodiment utilizes such a characteristic that the control unit 12 transmits a power line signal including a synchronous clock signal to each of the photographing devices 11 through a power line at the time of synchronous photographing, and each of the photographing devices 11 performs a preset photographing operation at the time of receiving the synchronous clock signal.
That is to say, by using the power line transmission technology, the synchronous clock signal that can be used to control the shooting devices 11 to shoot is coupled into the power line signal, and the power line signal coupled with the synchronous clock signal is sent to each shooting device 11 through the control unit 12, so as to implement synchronous shooting of each shooting device 11, thereby effectively solving the problem that the deployment cost and the deployment difficulty of each shooting device 11 increase as the number of the shooting devices 11 increases because each shooting device 11 needs to deploy a signal line.
In an optional implementation manner, the synchronized shooting system further includes: a server electrically connected to the control unit 12 through a power line; the server is configured to generate a synchronous clock signal, couple the synchronous clock signal to the power line signal according to a preset first carrier frequency, so that the control unit 12 receives the synchronous clock signal and forwards the power line signal sent by the server to each shooting device 11.
It should be noted that the server provided in this embodiment may be integrated into a cloud server based on an operator of a synchronous shooting system, and may be configured to generate a synchronous clock signal and couple the generated synchronous clock signal to a power line signal at a first carrier frequency by using an electrical signal carrier technology. It should be noted that, in general, the frequency of the electrical signal in the power line signal is 50 hz, and accordingly, the first carrier may be a carrier signal with a plurality of frequencies, for example, a carrier signal set at a frequency of 13 mhz level, so as to avoid interference from the electrical signal.
Preferably, the server is further configured to generate a control signal according to an operation instruction triggered by a user, and couple the control signal to the power line signal according to a preset second carrier frequency; correspondingly, each shooting device 11 is further configured to perform a corresponding operation according to the control signal. The second carrier frequency and the first carrier frequency may be the same frequency or different frequencies.
Specifically, due to the difference in the shooting requirements, the user may control the shooting device 11 through the server to perform corresponding operations, which include, but are not limited to: setting of shooting parameters, switching operation of the shooting device 11, and the like. The shooting parameters may include shutter parameters, exposure parameters, and the like. The server may generate control signals for controlling the shooting device 11 to perform the above operations according to an operation instruction triggered by a user, and couple the control signals into the power line signal according to a preset second carrier frequency for the shooting device 11 to perform the operations. Of course, similar to the first carrier, the second carrier may also be a carrier signal under multiple frequencies, for example, a carrier signal at a megahertz level, so as to avoid interference from the electrical signal, and the second carrier frequency may be the same frequency as the first carrier frequency or different frequencies.
In another preferred embodiment, each of the shooting devices 11 is connected to the server through a wireless local area network; the server is also used for generating a control signal according to an operation instruction triggered by a user and sending the control signal to each shooting device 11 through a wireless local area network; correspondingly, each shooting device 11 is further configured to perform a corresponding operation according to the control signal.
Specifically, as described above, due to the difference in the shooting requirements, the user may control the shooting device 11 through the server to perform corresponding operations, which include but are not limited to: setting of shooting parameters, switching operation of the shooting device 11, and the like. The shooting parameters may include shutter parameters, exposure parameters, and the like. Different from the foregoing, generally, the above operation has no high requirement on timeliness, and the server may send a control signal to each shooting device 11 through the wireless local area network to realize control over each shooting device 11.
In addition, in other alternative embodiments, each shooting device 11 sends the image obtained by shooting to the server through a wireless local area network after completing the shooting operation; correspondingly, the server is also used for constructing a three-dimensional visual image according to the synchronous clock signal and the images obtained by shooting.
Specifically, after each shooting device 11 finishes shooting according to the synchronous clock signal, the shot image can be sent to the server through the wireless local area network, so that the server constructs and obtains a corresponding three-dimensional visual image according to the synchronous clock signal and the obtained image. The construction of the three-dimensional visual image can be realized by adopting the existing stereoscopic vision construction model, and the invention does not limit the three-dimensional visual image.
Furthermore, as an alternative embodiment, on the basis of the embodiment shown in fig. 1, the control unit 12 further comprises an infrared signal transmitter: the infrared signal transmitter of the control unit 12 transmits the infrared signals including the synchronous clock signals to the plurality of photographing devices 11, respectively; the plurality of photographing apparatuses 11 perform a photographing operation upon receiving the synchronized clock signal.
Specifically, the application scenario on which this embodiment is based is synchronous shooting of a scene based on a plurality of rooms, for example, synchronous shooting for a plurality of rooms in a building. In this scenario, a control unit 12 may be provided for each room, and the control unit 12 may send an infrared signal including a synchronous clock signal to each shooting device 11 located on the same vacation through an infrared signal transmitter, so that each shooting device 11 receives the infrared signal through an infrared signal receiver and performs a shooting operation according to the synchronous clock signal therein.
The synchronous shooting system provided by the first embodiment of the invention is provided with a plurality of shooting devices 11 and a control unit 12 electrically connected with each shooting device 11 through a power line, wherein the control unit 12 sends power line signals including synchronous clock signals to the plurality of shooting devices 11 through the power line respectively, and the plurality of shooting devices 11 execute shooting operation when receiving the synchronous clock signals. Therefore, the control unit 12 of the present application sends the power line signal, which can be used for controlling the shooting devices 11 to perform the shooting operation, to each shooting device 11 in a power line transmission manner, so that each shooting device 11 performs the synchronous shooting operation according to the synchronous clock signal in the power line signal, and compared with the prior art, the deployment cost and the deployment difficulty of the control unit are both effectively reduced, and it is also convenient to construct the corresponding three-dimensional visual image according to the images synchronously shot by the shooting devices 11 subsequently.
On the basis of the first embodiment, fig. 2 is a schematic structural diagram of the shooting device 11 according to the second embodiment of the present invention, and as shown in fig. 2, the signal extracting unit 111 and the shooting unit 112 are provided.
Wherein, the signal extraction unit 111 is configured to extract a synchronous clock signal in the power line signal when the shooting device 11 receives the power line signal sent by the control unit 12, so that the shooting unit 112 performs a shooting operation according to the synchronous clock signal.
Specifically, the photographing apparatus 11 is electrically connected to the control unit 12 through a power line.
It should be noted that the shooting device 11 provided in the present application may specifically be a terminal with a shooting function, which may be set according to actual use requirements, and taking the foregoing unmanned retail machine as an example, for each retail shelf in the unmanned retail machine, a plurality of shooting devices 11 may be set so that each shooting device 11 may shoot and obtain images of the retail shelf at different angles; of course, when a large application scene such as an unmanned retail store is faced, a large number of photographing devices 11 are required to be provided for better constructing a three-dimensional visual image. The control unit 12 in the present embodiment may be a physical device including components such as a processor, a memory, a logic circuit, and a chip set, such as a controller, a relay, and a control base station, which are provided independently of each imaging device 11, or may be a control chip provided in any one of the imaging devices 11. Of course, it is connected to each photographing apparatus 11 through a power line regardless of whether it is provided separately from the photographing apparatus 11.
Specifically, each of the photographing devices 11 and the control unit 12 in the present embodiment need to be connected to the same power network, and generally, regardless of whether or not the photographing device 11 needs to be synchronously controlled, it needs to be connected to the power network, and the present embodiment utilizes this characteristic such that the control unit 12 transmits a power line signal including a synchronous clock signal to each of the photographing devices 11 through a power line at the time of synchronous photographing, respectively, and the signal extraction unit 111 of the photographing device 11 can extract the synchronous clock signal in the power line signal and transmit it to the photographing unit 112 when the photographing device 11 receives the power line signal transmitted by the control unit 12, so that the photographing unit 112 performs a preset photographing operation according to the synchronous clock signal. It is known that the synchronous clock signal may be a high-low level signal that changes periodically, and the photographing unit 112 may perform a photographing operation according to the received high-low level information of the synchronous clock signal.
That is to say, by using the power line transmission technology, the synchronous clock signal that can be used to control the shooting devices 11 to shoot is coupled into the power line signal, and the power line signal coupled with the synchronous clock signal is sent to each shooting device 11 through the control unit 12, so as to implement synchronous shooting of each shooting device 11, thereby effectively solving the problem that the deployment cost and the deployment difficulty of each shooting device 11 increase as the number of the shooting devices 11 increases because each shooting device 11 needs to deploy a signal line.
In an optional implementation manner, the signal extraction unit 111 is further configured to extract a control signal in the power line signal, so that the shooting unit 112 performs a corresponding operation according to the control instruction.
Specifically, as described in the first embodiment, due to different shooting requirements, the user may control the shooting device 11 to perform corresponding operations through the server, which include, but are not limited to: setting of shooting parameters, switching operation of the shooting device 11, and the like. The shooting parameters may include shutter parameters, exposure parameters, and the like. The signal extraction unit 111 of the photographing unit 112 may also be used to extract a control signal in the power line signal for the photographing unit 112 to perform an operation.
In an optional embodiment, the shooting device 11 further includes: a wireless network connection unit;
the wireless network connection unit is connected with a server through a wireless local area network, and is used for sending the image obtained by shooting by the shooting unit 112 to the server through the wireless local area network, so that the server can construct a three-dimensional visual image according to the synchronous clock signal and the images obtained by shooting.
Specifically, after each shooting device 11 finishes shooting according to the synchronous clock signal, the shot image can be sent to the server through the wireless local area network, so that the server constructs and obtains a corresponding three-dimensional visual image according to the synchronous clock signal and the obtained image.
In an optional implementation manner, the wireless network connection unit is configured to receive a control signal sent by the server, so that the shooting unit 112 performs a corresponding operation according to the control signal.
Specifically, as described above, due to the difference in the shooting requirements, the user may control the shooting device 11 through the server to perform corresponding operations, which include but are not limited to: setting of shooting parameters, switching operation of the shooting device 11, and the like. The shooting parameters may include shutter parameters, exposure parameters, and the like. Different from the foregoing, generally, the above operation has no high requirement on timeliness, and the server may send a control signal to each shooting device 11 through the wireless local area network to realize control over each shooting device 11.
In addition, as an alternative embodiment, on the basis of the embodiment shown in fig. 2, the photographing apparatus 11 further includes an infrared signal receiver; the infrared signal receiver is configured to extract a synchronous clock signal from the infrared signal when receiving the infrared signal sent by the control unit 12, so that the shooting unit 112 performs a shooting operation according to the synchronous clock signal.
Specifically, the application scenario on which this embodiment is based is synchronous shooting of a scene based on a plurality of rooms, for example, synchronous shooting for a plurality of rooms in a building. In this scenario, a control unit 12 may be provided for each room, the control unit 12 may transmit an infrared signal including a synchronous clock signal to the infrared signal receiver of each shooting device 11 located on the same vacation through the infrared signal transmitter, and the infrared signal receiver may extract the synchronous clock signal from the infrared signal transmitted by the control unit 12 after receiving the infrared signal, so that the shooting unit 112 performs a shooting operation according to the synchronous clock signal.
According to the shooting device 11 provided by the second embodiment of the present invention, by using the power line transmission technology, the synchronous clock signal that can be used for controlling the shooting device 11 to shoot is coupled to the power line signal, and the power line signal coupled with the synchronous clock signal is sent to each shooting device 11 through the control unit 12, so as to implement synchronous shooting of each shooting device 11, thereby effectively solving the problem that the deployment cost and the deployment difficulty of each shooting device 11 increase as the number of the shooting devices 11 increases because each shooting device 11 needs to deploy a signal line.
Fig. 3 is a schematic flowchart of a synchronous shooting method according to a third embodiment of the present invention, where the method is applied to any one of the synchronous shooting systems according to the first embodiment of the present invention, and the method includes:
in step 102, the plurality of photographing apparatuses perform a photographing operation upon receiving the synchronized clock signal.
Specifically, the synchronous shooting method in this embodiment is based on the synchronous shooting system provided in the first embodiment, and by connecting each shooting device and the control unit to the same power network, the control unit transmits a power line signal including a synchronous clock signal to each shooting device through a power line during synchronous shooting, and each shooting device performs a preset shooting operation on the received synchronous clock signal. For a specific implementation manner, reference may be made to the description of the first embodiment, which is not described herein again.
According to the synchronous shooting method provided by the third embodiment of the invention, the synchronous clock signal which can be used for controlling the shooting equipment to shoot is coupled into the power line signal by using the power line transmission technology, and the power line signal coupled with the synchronous clock signal is sent to each shooting equipment by the control unit, so that the synchronous shooting of each shooting equipment is realized, and the problem that the deployment cost and the deployment difficulty of each shooting equipment are increased along with the increase of the number of the shooting equipment because each shooting equipment needs to deploy a signal line is effectively solved.
Fig. 4 is a schematic flow chart of a synchronous shooting method according to a fourth embodiment of the present invention, where the method is applied to any one of the shooting devices according to the second embodiment, and the method includes:
and step 203, executing shooting operation according to the synchronous clock signal.
Specifically, the synchronous shooting method in this embodiment is based on the synchronous shooting system provided in the second embodiment, and by connecting each shooting device and the control unit into the same power network, the control unit transmits a power line signal including a synchronous clock signal to each shooting device through a power line during synchronous shooting, and each shooting device extracts the synchronous clock signal in the power line signal after receiving the power line signal, and performs a preset shooting operation according to the synchronous clock signal. For a specific implementation manner, reference may be made to the description of the second embodiment, which is not described herein again.
According to the synchronous shooting method provided by the fourth embodiment of the invention, the synchronous clock signal which can be used for controlling the shooting equipment to shoot is coupled into the power line signal by using the power line transmission technology, and the power line signal coupled with the synchronous clock signal is sent to each shooting equipment by the control unit, so that the synchronous shooting of each shooting equipment is realized, and the problem that the deployment cost and the deployment difficulty of each shooting equipment are increased along with the increase of the number of the shooting equipment because each shooting equipment needs to deploy a signal line is effectively solved.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A synchronized photographing system, comprising: the system comprises a plurality of shooting devices, a control unit and a server, wherein the control unit is electrically connected with each shooting device through a power line;
the control unit sends power line signals comprising synchronous clock signals to the plurality of shooting devices through the power lines respectively; wherein the synchronous clock signal is generated by the server;
the plurality of photographing apparatuses perform a photographing operation upon receiving the synchronized clock signal;
after the shooting operation is finished, each shooting device sends the shot image to the server through the wireless local area network;
the server is also used for constructing a three-dimensional visual image according to the synchronous clock signal and the images obtained by shooting.
2. The synchronized photographing system of claim 1, wherein the control unit further comprises an infrared signal transmitter;
and the infrared signal emitter of the control unit sends the infrared signals comprising the synchronous clock signals to the plurality of shooting devices respectively.
3. The synchronous shooting system of claim 1 or 2, wherein the synchronous clock signal is coupled to a power line signal at a preset first carrier frequency for the control unit to receive and forward the power line signal sent by the server to each shooting device.
4. The synchronized photographing system of claim 1,
the server is further used for generating a control signal according to an operation instruction triggered by a user and coupling the control signal to the power line signal according to a preset second carrier frequency;
correspondingly, each shooting device is further used for executing corresponding operation according to the control signal.
5. The synchronized photographing system of claim 1, wherein the photographing apparatuses are connected to the server through a wireless local area network;
the server is also used for generating a control signal according to an operation instruction triggered by a user and sending the control signal to each shooting device through a wireless local area network;
correspondingly, each shooting device is further used for executing corresponding operation according to the control signal.
6. The shooting device is characterized in that the shooting device is electrically connected with a control unit through a power line; the photographing apparatus includes: the device comprises a signal extraction unit, a shooting unit and a wireless network connection unit;
the signal extraction unit is used for extracting a synchronous clock signal in the power line signal when the shooting device receives the power line signal sent by the control unit so as to enable the shooting unit to execute shooting operation according to the synchronous clock signal; the synchronous clock signal in the power line signal is generated by the server and is sent to the control unit through the power line;
the wireless network connection unit is connected with the server through a wireless local area network and used for sending the images obtained by shooting by the shooting unit to the server through the wireless local area network so that the server can construct three-dimensional visual images according to the synchronous clock signals and the images obtained by shooting.
7. The photographing apparatus according to claim 6, further comprising an infrared signal receiver;
the infrared signal receiver is used for extracting a synchronous clock signal in the infrared signal when receiving the infrared signal sent by the control unit, so that the shooting unit executes shooting operation according to the synchronous clock signal.
8. The photographing apparatus according to claim 6, wherein the signal extraction unit is further configured to extract a control signal in the power line signal to cause the photographing unit to perform a corresponding operation according to the control instruction.
9. The shooting device of claim 6, wherein the wireless network connection unit is configured to receive a control signal sent by the server, so that the shooting unit performs a corresponding operation according to the control signal.
10. A synchronized photographing method applied to the synchronized photographing system of any one of claims 1 to 5, the method comprising:
the control unit sends power line signals comprising synchronous clock signals to the plurality of shooting devices through the power lines respectively;
the plurality of photographing apparatuses perform a photographing operation upon receiving the synchronized clock signal.
11. A synchronous photographing method applied to the photographing apparatus of any one of claims 6 to 9, the method comprising:
receiving a power line signal sent by a control unit;
extracting a synchronous clock signal in the power line signal;
and executing shooting operation according to the synchronous clock signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN205901903U (en) * | 2016-07-01 | 2017-01-18 | 广州华多网络科技有限公司 | A video shooting system |
| CN108234966A (en) * | 2018-03-19 | 2018-06-29 | 成都杠上花信息技术有限公司 | A kind of real-time panoramic video splicing system based on embedded platform |
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