CN105427564A - Outdoor shooting system and method based on WIFI (Wireless Fidelity) clone mode - Google Patents
Outdoor shooting system and method based on WIFI (Wireless Fidelity) clone mode Download PDFInfo
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- CN105427564A CN105427564A CN201510858699.XA CN201510858699A CN105427564A CN 105427564 A CN105427564 A CN 105427564A CN 201510858699 A CN201510858699 A CN 201510858699A CN 105427564 A CN105427564 A CN 105427564A
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Abstract
The invention discloses an outdoor shooting system based on a WIFI (Wireless Fidelity) clone mode and an outdoor shooting method based on the WIFI clone mode. The outdoor shooting method comprises the following steps: (1) the working mode of a master control camera is chosen and set to be an AP (Application Process) +STA (Special Temporary Authority) sharing mode or an AP mode; (2) the working mode of a slave control camera is set, and wireless connection is realized between the slave control camera and the master control camera; (3) the master control camera is used for receiving, executing and transferring a control command; (4) the slave control camera is used for receiving, executing and transferring the control command transferred by the master control camera step by step. The outdoor shooting system and the outdoor shooting method have the beneficial effects that remote control on the cameras can be realized through WIFI; the clone of the control command is realized through three working modes of WIFI, thereby greatly saving control cost; the cameras can be placed flexibly based on the characteristic of the non-directional requirement of WIFI, so that the cameras can be more suitable for shooting in a special occasion.
Description
Technical field
The present invention relates to technique for taking field, particularly relate to a kind of adopt wireless WIFI to control multiple cameras simultaneously camera system and method.
Background technology
Some as at a distance, be unfavorable for artificial or need the special photographing outdoors occasion of continuous print, photographer usually needs Digiplex remote control multiple cameras to realize the shooting of multiple camera chain.Wherein the most frequently used method is infrared remote control shooting, but adopts infrared remote control shooting to have a lot of shortcoming: the distance of infrared remote control is limited, can only short-range control multiple cameras; Infrared ray has very strong directivity, cannot penetrate barrier, that is can not have the stop of barrier between Infrared remote controller and video camera, and this makes the putting position of video camera be easy to be subject to the impact of shooting environmental; And infrared remote control is only suitable for one-way communication, to realize both-way communication, cost is very high.
Summary of the invention
In order to overcome the deficiency of existing remote control technique for taking, the invention provides a kind of photographing outdoors system and method based on wireless WIFI clone mode, this system and method to camera remote control distance, cost of labor and communications cost low, and video camera is put flexibly.
To achieve these goals, technical solution of the present invention is as follows:
Should be based on the photographing outdoors system of wireless WIFI clone mode:
Pre-set the mode of operation of the WIFI of some video cameras, then by WIFI wireless connections, each camera chain is become network topology structure, utilize the video camera in described network topology structure to realize outdoor special shooting.
The mode of operation of the WIFI of video camera has following three kinds: ap mode, STA mode or AP+STA shared model.
A master control video camera is had with at least one from control video camera in this network topology structure; The WIFI mode of operation of master control video camera is AP+STA shared model or ap mode; From control video camera WIFI mode of operation be STA mode or AP+STA shared model.
The control command that master control video camera sends for receiving Digiplex, after master control video camera executes this control command, control command is sent to its child node from control video camera.
Receive from control video camera the control command that master control video camera sends directly or indirectly, be operated in and only perform this control command from control video camera under STA mode; After the subordinate video camera be operated under AP+STA shared model executes this control command, this control command is sent to its child node from control video camera.
The method comprises the following steps:
Step (1) is selected and the mode of operation arranging master control video camera is AP+STA shared model or ap mode:
If the mode of operation selecting master control video camera is AP+STA shared model, then first sets the STA mode of master control video camera, then by router, master control video camera and wireless network are realized being connected, to treat that remote manipulator sends control command; Finally set the ap mode of master control video camera, with treat its child node from control video camera wireless connections with it;
If the mode of operation selecting master control video camera is ap mode, then only need set the ap mode of master control video camera, with treat its child node from the wireless connections with it of control video camera, and to treat that in-plant Digiplex sends control command.
Step (2) arranges the mode of operation from control video camera, realizes wireless connections between control video camera and master control video camera:
Be operated under STA mode set STA mode from control video camera after, directly and its father node from controlling video camera or the wireless connections of master control video camera;
Be operated under AP+STA shared model from control video camera, first set its STA mode, then its father node of wireless connections from control video camera or master control video camera; Finally set its ap mode, with treat its child node from control video camera wireless connections with it; All complete from the whole wireless connections of control video camera after, constitute network topology structure between video camera.
Step (3) master control video camera receives control command, performs and transmits:
Master control video camera receives the control command that in-plant Digiplex or remote manipulator send, after executing control command, this control command is sent to its child node from control video camera.
Step (4) receives from control video camera step by step the control command that master control video camera transmits, perform and transmits:
Receive, perform and transmit the control command of master control video camera transmission step by step from control video camera, until all works
Do under STA mode from control video camera all execute this control command.
Further, in this system and method, the master control video camera be operated under AP+STA pattern is connected with remote manipulator by router, realizes Long-distance Control; The master control video camera be operated under ap mode directly receives the control command of in-plant Digiplex, realizes closely controlling.
Further, in this system and method, TCP communication agreement between video camera, is adopted to transmit control command.
Further, in this system and method, described network topology structure is decentralized link or serial type link.
Further, in this system and method, the master control video camera be operated under AP+STA pattern directly can also receive the control command of in-plant Digiplex, realizes closely controlling.
Beneficial effect of the present invention:
(1) this system and method utilizes wireless WIFI can realize remote-wireless control to video camera;
(2) this system and method utilizes three kinds of mode of operations of wireless WIFI, achieves the clone of control command, and user only need control a master control video camera, just can realize, to the control of all video cameras, greatly saving cost of labor;
(3) this system and method utilizes the feature of the non-directional requirement of wireless WIFI, makes video camera putting position flexible, can better be used for the shooting of special occasions.
Accompanying drawing explanation
Fig. 1 is this schematic diagram based on the network topology structure of the photographing outdoors system of wireless WIFI clone mode.
Fig. 2 is this schematic flow sheet based on the photographing outdoors method of wireless WIFI clone mode.
Embodiment
Fig. 1 is this schematic diagram based on the network topology structure of the photographing outdoors system of wireless WIFI clone mode.
Video camera in this system has wireless WIFI launching and receiving function, wireless WIFI is adopted to be coupled together by some video cameras, the benefit of wireless WIFI is the distance as infrared remote control of effective range than other of wireless signal, and the WIFI function of video camera has three kinds of mode of operations:
(1), ap mode: AP i.e. WAP, being the founder of a wireless network, is the Centroid of network, and the WIFI router that general family or office use is exactly an AP; Video camera under ap mode itself, as WIFI hot spot, can allow other intelligent terminal or video camera wireless access; That is the video camera under ap mode, as WIFI router, as a WIFI hot spot, can allow other intelligent terminal or video camera wireless access with it.
(2), STA mode: each terminal be connected in wireless network can be described as a STA website; That is being operated in video camera under STA mode can video camera under wireless access to ap mode, and itself does not accept the wireless access of other video camera.
(3), AP+STA shared model: video camera both can access as the video camera of STA website and other ap mode, can be used as again the access that AP receives other STA website; That is, the video camera of AP+STA shared model transmits after being come by remote reception of wireless signals again, realizes the effect covered among a small circle.
By configuring the WIFI mode of operation of each video camera, multiple cameras can be connected so simultaneously, forming one and getting final product decentralized, the video camera link of distance serial type can be grown again.No matter be decentralized link or serial type link, be referred to as network topology structure here.In network topology structure, the video camera be operated under ap mode is the father node being operated in the video camera under STA mode of wireless access with it; Otherwise the video camera be operated under STA mode is the child node of its father node.So the existing father node of video camera of AP+STA shared model also has child node.The video camera of child node is the next stage of father node video camera, and the video camera of father node is the upper level of the video camera of child node.
The start-up course of the STA mode of WIFI, ap mode, AP+STA shared model is as follows:
The Starting mode of STA mode: a1. specifies and opens wlan network interface corresponding to STA website; A2. arrange WIFI checking, now STA website is from being dynamically connected the AP specified.
The title of the AP network interface that the Starting mode of ap mode: b1. specifies ap mode to use, SSID, PASSWORD etc.; B2. open p2p network interface, and configure the IP address of p2p network interface; B3. start hostapd backstage, now AP can be arrived by other STA site search.
The Starting mode of AP+STA shared model: c1. is wlan interface interpolation route on BastCast; C2. be p2p interface interpolation route on BastCast; C3. default route is set on BastCast; C4. setting network address conversion, now realizes the inside and outside communication of network.
Fig. 2 is this schematic flow sheet based on the photographing outdoors method of wireless WIFI clone mode.Particularly, comprising: step (1) is selected and the mode of operation arranging master control video camera is AP+STA shared model or ap mode; Step (2) arranges the mode of operation from control video camera, realizes wireless connections between control video camera and master control video camera; Step (3) master control video camera receives control command, performs and transmits; Step (4) receives from control video camera step by step the control command that master control video camera transmits, perform, transmits.
Step (1) is selected and the mode of operation arranging master control video camera is AP+STA shared model or ap mode.
From several video cameras, select arbitrarily a video camera as master control video camera, master control video camera receives the control command that remote manipulator or in-plant Digiplex send, and is the input port of telepilot control command when controlling multiple video camera.Master control camera operation is under AP+STA shared model or ap mode.The WIFI that the master control video camera be operated under ap mode can adopt terminal APP to connect master control video camera enters distance controlling to it; Or with Digiplexs such as Infrared remote controller, master control video camera is closely controlled.Be operated under AP+STA shared model, enter except distance except terminal APP or Infrared remote controller can be adopted to it, also master control video camera can be carried out network by router access (Internet) with long-range Digiplex to be connected, realize Long-distance Control.When generally closely controlling, master control video camera adopts ap mode.Terminal comprises smart mobile phone, Intelligent flat, computer etc.
In network topology structure, master control video camera has and only has one, and master control video camera does not have father node, and it is the root node of network topology structure.
The setting up procedure being operated in the master control camera operation pattern of AP+STA shared model is as follows:
Pre-set SSID and PASSWORD of good router, for master control video camera provides the condition of networking; Master control camera operation pattern is selected to be AP+STA shared model; The STA mode of master control video camera is first set.Under STA mode, master control video camera can scan the SSID of router, the PASSWORD of user's input router, and after confirmation, master control video camera and carry-on route just realize wireless connections.Then arrange the ap mode of master control video camera, the ap mode of master control video camera makes master control video camera can by other video camera wireless connections.Ap mode process is, arranges SSID, IP address and the PASSWORD of master control video camera ap mode, master control video camera child node can access master control video camera according to SSID, IP address set and PASSWORD from control video camera.It is identical that SSID, IP address of master control video camera is not arranged with SSID with the IP address of router.
The master control video camera be operated under ap mode only directly need arrange SSID, IP address and the PASSWORD of its ap mode, so as master control video camera child node from control video camera or terminal APP be connected with it.
Step (2) arranges the mode of operation from control video camera, realizes wireless connections between control video camera and master control video camera.
In network topology structure, except above-mentioned master control video camera, the video camera of other position is all called from control video camera; Master control video camera be from difference control video camera, master control video camera directly by the control of Remote, and receives Remote order from control video camera needs directly or indirectly through master control video camera by wireless network.From namely control video camera may be operated in STA mode, under also may being operated in AP+STA shared model.
Work in a shared mode from control video camera similar to the setting up procedure of the master control video camera be operated in AP+STA shared model.First, its STA mode is set, from control camera-scanning to will the father node video camera of wireless connections with it, then, after the PASSWORD of input father node video camera, just sets up wireless connections with father node video camera.This SSID, IP address of ap mode from control video camera is set again, facilitates the video camera of its child node to carry out wireless connections.Be operated in SSID, IP address from control video camera under AP+STA shared model not with router, master control video camera or other be operated in AP+STA shared model arrange from SSID with the IP address controlling video camera identical.Be operated in and the video camera wireless connections with its father node be directly set from control video camera under STA mode.
Forms top
After master control video camera and all mode of operations from control video camera are all provided with, the network topology structure of video camera composition has just been provided with.Be operated in master control video camera under AP+STA pattern or from control video camera, its STA mode needs to connect upper carry-on route or other video camera.Otherwise STA mode constantly can scan wireless routing, certain influence can be caused to ap mode, as loss of data etc. when scanning.
Step (3) master control video camera receives control command, performs and transmits.
After the WIFI mode of operation of all video cameras sets, the network topology structure that multiple camera chain becomes just is arranged and is completed, and is in standby mode when each video camera in this network topology structure starts.Be operated in master control video camera under AP+STA pattern by router access of radio network, remote manipulator also access network realizes the mutual friendship with master control video camera, and remote manipulator can be smart mobile phone, Intelligent flat, computer etc.User uses a teleswitch and sends control command (order such as such as start to record a video, take pictures, arrange), master control video camera receives this control command, first master control video camera executes this control command after receiving this control command, then this control command can be passed to the child node of master control video camera from control video camera.Or under master control video camera is arranged on AP mode of operation, user adopts terminal APP to be connected with master control video camera, closely controls it; Also the infrared Digiplex that waits can be used to control master control video camera.
Step (4) is described to be received from control video camera step by step the control command that described master control video camera transmits, perform and transmits.
The child node of master control video camera first receive control command from control video camera, then perform this control command.If with master control video camera access from controlling video camera is operated in STA mode, then only need perform this control command; If the child node of master control video camera has be operated in AP+STA pattern from control video camera, this be operated under AP+STA pattern execute this control command from control video camera after, this control command will be passed to next stage continue to perform from control video camera.Like this, the control command that Digiplex sends clone step by step go down, until all working under STA mode from control video camera all execute this control command, till namely all video cameras all perform this control command.Like this by the clone to control command, the remote or special shooting of relevant industries for open air, realizes multiple cameras collaborative shooting automatically, and control aspect.
The transmission of the control command between video camera and video camera adopts TCP communication agreement.Tcp data host-host protocol be a kind of connection-oriented, reliable, based on byte stream
transport layercommunication protocol." SCCP connection-oriented " is exactly must set up with the other side through " three-way handshake " to be connected before formal communication; It is reliable and stable that the affirmation mechanism of TCP when data are transmitted, retransmission mechanism, congestion control mechanism ensure that data are transmitted.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement that those skilled in the art directly derive without departing from the basic idea of the present invention or associate and change all should be thought to be included within protection scope of the present invention.
Claims (10)
1., based on a photographing outdoors system for wireless WIFI clone mode, it is characterized in that:
This system pre-sets the mode of operation of the WIFI of some video cameras, utilizes WIFI that each camera chain is become network topology structure, realizes outdoor special shooting;
A master control video camera is had with at least one from control video camera in described network topology structure;
The WIFI mode of operation of master control video camera is AP+STA shared model or ap mode; From control video camera WIFI mode of operation be STA mode or AP+STA shared model;
The control command that master control video camera sends for receiving in-plant Digiplex or remote manipulator, after master control video camera executes control command, control command is sent to its child node from control video camera;
Receive from control video camera the control command that master control video camera sends directly or indirectly, be operated in and only perform control command from control video camera under STA mode; After the subordinate video camera be operated under AP+STA shared model executes control command, control command is sent to its child node from control video camera.
2. the photographing outdoors system based on wireless WIFI clone mode according to claim 1, is characterized in that:
The master control video camera be operated under AP+STA pattern is connected with remote manipulator by router, realizes Long-distance Control;
The master control video camera be operated under ap mode directly receives the control command of in-plant Digiplex, realizes closely controlling.
3. the photographing outdoors system based on wireless WIFI clone mode according to claim 1, is characterized in that:
TCP communication agreement is adopted to transmit control command between video camera.
4. the photographing outdoors system based on wireless WIFI clone mode according to claim 1, is characterized in that:
Described network topology structure is decentralized link or serial type link.
5. the photographing outdoors system based on wireless WIFI clone mode according to claim 2, is characterized in that:
The master control video camera be operated under AP+STA pattern directly can also receive the control command of in-plant Digiplex, realizes closely controlling.
6., based on a photographing outdoors method for wireless WIFI clone mode, it is characterized in that:
The method comprises the following steps:
Step (1) is selected and the mode of operation arranging master control video camera is AP+STA shared model or ap mode:
If the mode of operation selecting master control video camera is AP+STA shared model, then first sets the STA mode of master control video camera, then by router, master control video camera and wireless network are realized being connected, to treat that remote manipulator sends control command; Finally set the ap mode of master control video camera, with treat its child node from control video camera wireless connections with it;
If the mode of operation selecting master control video camera is ap mode, then only need set the ap mode of master control video camera, with treat its child node from the wireless connections with it of control video camera, and to treat that in-plant Digiplex sends control command;
Step (2) arranges the mode of operation from control video camera, realizes wireless connections between control video camera and master control video camera:
Be operated under STA mode set STA mode from control video camera after, directly and its father node from controlling video camera or the wireless connections of master control video camera;
Be operated under AP+STA shared model from control video camera, first set its STA mode, then its father node of wireless connections from control video camera or master control video camera; Finally set its ap mode, with treat its child node from control video camera wireless connections with it; All complete from the whole wireless connections of control video camera after, constitute network topology structure between video camera;
Step (3) master control video camera receives control command, performs and transmits:
Master control video camera receives the control command that in-plant Digiplex or remote manipulator send, after executing control command, this control command is sent to its child node from control video camera;
Step (4) receives from control video camera step by step the control command that master control video camera transmits, perform and transmits:
Receive, perform and transmit the control command of master control video camera transmission step by step from control video camera, until all works
Do under STA mode from control video camera all execute this control command.
7. the photographing outdoors method based on wireless WIFI clone mode according to claim 6, is characterized in that:
The master control video camera be operated under AP+STA pattern is connected with remote manipulator by router, realizes Long-distance Control;
The master control video camera be operated under ap mode directly receives the control command of in-plant Digiplex, realizes closely controlling.
8. the photographing outdoors method based on wireless WIFI clone mode according to claim 6, is characterized in that:
TCP communication agreement is adopted to transmit control command between video camera.
9. the photographing outdoors method based on wireless WIFI clone mode according to claim 6, is characterized in that:
Described network topology structure is decentralized link or serial type link.
10. the photographing outdoors method based on wireless WIFI clone mode according to claim 7, is characterized in that:
The master control video camera be operated under AP+STA pattern directly can also receive the control command of in-plant Digiplex, realizes closely controlling.
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Application publication date: 20160323 |