CN105635592A - External camera wireless prompt system and device - Google Patents
External camera wireless prompt system and device Download PDFInfo
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- CN105635592A CN105635592A CN201610209819.8A CN201610209819A CN105635592A CN 105635592 A CN105635592 A CN 105635592A CN 201610209819 A CN201610209819 A CN 201610209819A CN 105635592 A CN105635592 A CN 105635592A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
An external camera wireless prompt system provided by the invention comprises a host, an emitter and a prompt device. The prompt device is installed on a camera, and the external camera wireless prompt system is configured to encode the switching prompt signals of a guided scheduling switcher through a host and then send the encoded switching prompt signals to the emitter. The emitter sends encoding signals to the prompt device, the prompt device performs determine after decoding the encoding signals, emits prompt information after identifying that the decoded signals are itself control signals, and prompts a cameraman that the current camera is occupied at present so as to prevent the cameraman from causing broadcast accidents in the unwitting condition. The external camera wireless prompt system and device are simple in structure and practical.
Description
Technical field
The present invention relates to pick up camera instructor in broadcasting field, specifically, it relates to a kind of External video camera wireless alerts system, suggestion device.
Background technology
In media production system (such as television studio and mobile unit), the quantity in pick up camera news road is certain, and Hou Buneng meets program making sometimes, it is necessary to External video camera enters manufacturing system, with satisfied making demand. Such as, the manufacturing system in one 6 news road, it may be possible to provide just only 6 cover pick up cameras (this kind of pick up camera metropolitan adopts band CCU (CameraControlUnit camera control device. This kind of pick up camera is specially for manufacturing system designs, and function is very complete, and call, Tally possess entirely. But price is very expensive. ), but in a program making, instructor in broadcasting needs 8 pick up camera seats in the plane, now just needs external 2 ENG (ElectronicNewsGathering, electronic news gatherings in addition. Belonging to portable camcorder apparatus, generally only vision signal enters manufacturing system, does not possess call and tally. ) pick up camera. In manufacturing system, Tally (switching platform switch prompting information) system plays a part extremely important, it appears at shooting head, pick up camera viewfinder and the first-class system node of video wall with the form of character or pilot lamp usually, being pointed out to respectively host, shooting and television studio producer, what the PGM signal that the current video switching platform of announcement cuts out is. Being coordinated the staff in each post by visual cues, be the essential part of system, especially pick up camera, whether the prompting current pick up camera of cameraman is just called, to prevent cameraman takes error.
For external increase such as ENG pick up camera, general manufacturing system does not possess provides Tally information alert, the mode by external Tally wire is needed to realize, but under normal circumstances, pick up camera and manufacturing system have 100 meters of even farther distances, if line separately, work can bring a lot of inconvenience. Having a lot of small-sized system temporarily built with ENG pick up camera in addition, between pick up camera with switching platform, general is connected by video (vision signal has: compound video CVBS, digital video SDI or HD video HDSDI) signal wire. Mainly dispatch and inform the position for video camera that cameraman is using now by interphone. Various error often occur, such as instructor in broadcasting forgets to have cried out or cried out slowly, also has that on-the-spot interference sound is too big, cameraman listens by mistake or do not hear, at this moment broadcasts and switches to this pick up camera, and pick up camera is also rocking and cause broadcast accident.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of External video camera wireless alerts system, to improve above-mentioned problem.
In order to realize above-mentioned purpose, the technical solution used in the present invention as follows described in:
A kind of External video camera wireless alerts system, comprises main frame, launching device and suggestion device, described main frame and the communication connection of described launching device, described launching device and the communication connection of described suggestion device, and described suggestion device is arranged on pick up camera, wherein,
Described main frame, for receiving switch prompting signal, transfers to described launching device after being processed by described switch prompting signal;
Described launching device, for launching described switch prompting signal to described suggestion device;
Described suggestion device is used for judging whether when receiving described switch prompting signal to generate information.
Preferably, described main frame comprises signal acquisition module and coding module, and described launching device comprises transmitting module, wherein,
Described signal acquisition module is for receiving described switch prompting signal and this switch prompting signal is sent to described coding module;
Described coding module, for being encoded by described switch prompting signal, obtains coded signal, and this coded signal is sent to described transmitting module;
Described transmitting module is for being sent to described suggestion device by the coded signal received.
Preferably, described suggestion device comprises receiver module, decoder module, judgement module and the first luminous module, wherein,
Described receiver module is for receiving described coded signal and this coded signal is sent to decoder module;
Described decoder module, for being decoded by described coded signal, obtains decoded signal, and described decoded signal is sent to described judgement module;
Described judgement module is used for driving the described first luminous module according to described decoded signal.
Preferably, described judge that whether this decoded signal is suggestion device corresponding to the described judgement module of control to module for judging, if it does, then judge that module sends the first drive command to the first luminous module, drives the first luminous module luminescence; , if not driving the first luminous module not luminous.
Preferably, described suggestion device also comprises the 2nd luminous module, described 2nd luminous module is connected with described receiver module, and the described 2nd luminous module is used for extinguishing when receiver module receives coded signal, and luminous when described receiver module does not receive coded signal.
Preferably, the quantity of described suggestion device is multiple, and described launching device sends coded signal to one of them suggestion device in multiple suggestion device.
Preferably, described launching device all sends coded signal to multiple suggestion device.
Preferably, described suggestion device comprises housing, connects structure, antenna and switch, described connection structure, antenna, switch are all connected with described housing, described suggestion device is connected with pick up camera by described connection structure, described antenna is used for the coded signal that receiving and transmitting unit send, and switch is for controlling the working order of suggestion device.
A kind of suggestion device, this suggestion device is arranged on pick up camera, and sets up radio communication with a launching device, and this suggestion device comprises the receiver module, decoder module, judgement module and the first luminous module that are electrically connected successively, wherein,
Described receiver module is used for the coded signal that receiving and transmitting unit sends, and described coded signal is sent to described launching device after a host code;
Described decoder module, for being decoded by described coded signal, obtains decoded signal, and this decoded signal is sent to described judgement module;
Described judgement module is used for driving the described first luminous module according to described coded signal.
Preferably, described judge that module is for judging that whether this decoded signal is for controlling suggestion device corresponding to described judgement module, if it does, then judge that module sends the first drive command to the first luminous module, drive the first luminous module luminous; , if not driving the first luminous module not luminous.
External video camera wireless alerts system provided by the invention comprises main frame, launching device and suggestion device. Suggestion device is installed on pick up camera. Instructor in broadcasting switched after the switch prompting signal that platform sends encodes by main frame and it is sent to launching device, coded signal is sent to suggestion device by launching device again, suggestion device judges after being decoded by coded signal, after confirming as the control signal of self, send information, the prompting current pick up camera of cameraman is used, and prevents cameraman's broadcast accident that malfunction causes in unwitting situation, simple and practical.
For making above-mentioned purpose, the feature and advantage of the present invention become apparent, better embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, it is briefly described to the accompanying drawing used required in embodiment below, it is to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore should not be counted as is the restriction to scope, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 shows the composition schematic diagram of a kind of External video camera wireless alerts system that the embodiment of the present invention provides.
Fig. 2 shows the functional module framework figure of a kind of External video camera wireless alerts system that the embodiment of the present invention provides.
Fig. 3 shows the structural representation of the suggestion device of a kind of External video camera wireless alerts system that the embodiment of the present invention provides.
Main element nomenclature:
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. The assembly of the embodiment of the present invention usually describing in accompanying drawing herein and illustrating can be arranged with various different configuration and design. Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the scope of the claimed the present invention of not intended to be limiting, but only represent the selected embodiment of the present invention. Based on embodiments of the invention, other embodiments all that those skilled in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
In television program designing process, multiple cameras can be used to take from multi-angle. The mode of switching mutually between each pick up camera is generally adopted to take. In instructor in broadcasting's process, when switching instructor in broadcasting and be switched to a certain pick up camera, if when not having information prompting his pick up camera signal of cameraman to be taken, cameraman may rock, in order to find better picture, the pick up camera used, and just cannot use at the picture rocked. If this kind of situation occurring in the live process of television station, rocking and being then defined as broadcast accident more than 5 seconds.
Owing to existing manufacturing system cannot provide extra prompt system for external ENG pick up camera, so instructor in broadcasting is when propagating information to the cameraman of External video camera, the general mode adopting interphone or headset, this kind of mode easily occurs that information transmission is slipped up, and is unfavorable for carrying out the work. In view of this, contriver is through long-term research, it is proposed that the External video camera wireless alerts system that the embodiment of the present invention provides. Below by specific embodiment, the present invention done concrete introduction.
Refer to Fig. 1, it is the composition schematic diagram of the External video camera wireless alerts system 100 that the embodiment of the present invention provides. The External video camera wireless alerts system 100 that the present embodiment provides comprises main frame 110, launching device 120 and suggestion device 130. This suggestion device 130 is arranged on pick up camera 140. Main frame 110 and launching device 120 communicate to connect, and this communication connection can be wired connection, it is also possible to be wireless connections, the present embodiment is preferably wired connection, and main frame 110 provides power supply to export for launching device 120, launching device 120, without the need to additionally installing power supply, has saved space. Exceeding outside 1000 meters in the spacing of main frame 110 with launching device 120, launching device 120 also can adopt external direct current 5V--36V Power supply. In order to make main frame 110 and launching device 120 work more stable, the power supply of main frame 110 have employed the power supply mode of main power supply, reliable and stable.
Wire length between main frame 110 and launching device 120 can be greater than 500 meters, can use in extreme complicated place, such as in concert scene, the positional distance concert shooting scene that mobile unit is parked is far away, and it is on-the-spot through too much stifled shield wall shields when, by main frame 110 is arranged at mobile unit position, and launching device 120 can be installed in concert scene, and the restriction that main frame 110 does not shield by Distance geometry sends signal to launching device 120.
Main frame 110 is for receiving switch prompting signal, the source of this switch prompting signal can be the manufacturing system in television studio, it can also be the manufacturing system on mobile unit, or the switch prompting signal in other media production system, this is not limited by the present embodiment, and switch prompting signal is mainly used in prompting cameraman, and system is taking the pick up camera 140 of cameraman's operation, so that cameraman is ready, relaying process is avoided to make a fault. After main frame 110 receives switch prompting signal, this switch prompting signal is encoded, then the coded signal after coding is sent to launching device 120. The mode that switch prompting signal is encoded by main frame 110 is various, can be by PPM (PulsePositionModulation, pulse-position modulation) mode, or PCM (PulseCodeModulation, pulse code modulation) or even other coded system, this is not limited by the embodiment of the present invention.
Launching device 120 preferably adopts wireless mode to send coded signal, and the distance between launching device 120 and suggestion device 130 can be greater than 1000 meters, substantially increases transmission range.
It should be noted that the mode that launching device 120 sends coded signal to suggestion device 130 can include but not limited to taking under type: first kind of way can be selected from 10MHZ 5.8GMHZ as transmit frequency range. 2nd kind of mode launching device 120 sends coded signal to multiple suggestion devices 130 of same frequency. The third mode two launching devices 120 send the coded signal of identical (for safety and reliability) simultaneously by two different frequencies to the suggestion device 130 that multiple double frequency receives, it is also possible to be the coded signal of different (can two instructors in broadcasting simultaneously make the program of two cover different-styles). The present embodiment preferably the 2nd kind of mode be by coding mode between all suggestion devices 130 and launching device 120, to suggestion devices 130 all after the code coded signal that all receiving and transmitting unit 120 sends. The frequency that launching device 120 adopts is 2.4GMHZ. For first kind of way, as long as the radio control regulations that the frequency that launching device 120 and suggestion device 130 use meets country are implemented just may be used. For the 2nd kind of mode, the coded signal that launching device 120 is launched, all suggestion devices 130 all can receive. For the third mode, the coded signal suggestion device 130 that launching device 120 is launched all can receive, different from the 2nd kind it is that the third have employed two launching devices 120 and divides main standby road direction suggestion device 130 to launch identical coded signal by different frequencies and different angles simultaneously, suggestion device 130 also receives for double frequency, the frequency of corresponding launching device 120 and coded system. In embodiments of the present invention, it may be preferred that adopt the 2nd kind of mode.
Suggestion device 130 is after receiving the coded signal that launching device 120 sends, coded signal can be decoded, the coded system of the mode respective hosts 110 of decoding, which kind of mode main frame 110 adopts encode, then suggestion device 130 adopts corresponding decoding process to decode. In the present embodiment, what main frame 110 adopted is that hyperchannel high lower level mode encodes, the high level of the corresponding passage of each suggestion device 130. After decoding, obtain decoded signal, this decoded signal identification is judged, judges whether this decoded signal is in passage and the level of this suggestion device 130 correspondence. When suggestion device 130 judges that this decoded signal is control suggestion device 130 passage and level, then suggestion device 130 generates information. This information can be word, it is also possible to being the modes such as luminescence, flicker, this is not limited by the embodiment of the present invention.
Please refer to Fig. 2, it is the functional module framework figure of the External video camera wireless alerts system that the embodiment of the present invention provides. In the present embodiment, preferably, main frame 110 comprises signal acquisition module 111 and coding module 112, launching device 120 comprises launches module 121, suggestion device 130 comprises receiver module 131, decoder module 132, judges module 133 and the first luminous module 134, receiver module 131 is connected with decoder module 132, judges that the luminous module 134 of module 133 and decoder module 132, first is all connected.
In this example, news road is preferably 9, it is possible to simultaneously for 9 pick up cameras provide switch prompting signal. 9 switch prompting signals of manufacturing system are distributed by the signal acquisition module 111 of main frame 110 and after the low level process of height, and by signal acquisition module 111, this switch prompting signal is sent to coding module 112. The news road one_to_one corresponding of the switch prompting signal news road of manufacturing system and the signal acquisition module 111 of main frame 110.
The decoder module 132 of suggestion device 130 comprises 9 Ge Xun roads, 9 Ge Xun roads of decoder module 132 and 9 Ge Xun roads between manufacturing system and signal acquisition module 111, and 9 Ge Xun road one_to_one corresponding between signal acquisition module 111 and coding module 112. In the decoder module 132 of each suggestion device 130, judge that module 133 connects the different news road of decoder module 132, such as, suggestion device 130 is numbered 1-9, the news road numbering of decoder module 132 is also 1-9, then judgement model calling No. 1 news road in No. 1 suggestion device, No. 2 news roads of the judgement model calling in No. 2 suggestion devices, analogize with this.
When needs control a certain suggestion device 130 generate information time, then manufacturing system sends switch prompting signal by the news road of this suggestion device 130 correspondence to signal acquisition module 111. Signal acquisition module 111 receives switch prompting signal, after distributing the process of high lower level, is sent to coding module 112 by the news road of correspondence. Coding module 112 is for encoding switch prompting signal according to the coded system set in advance, obtain coded signal, and this coded signal is sent to and launches module 121, send mode can be by wired can also by wireless, the embodiment of the present invention adopt wired connection mode send. Preferably, being connected by three core microphone lines between main frame 110 with launching device 120, three core microphone lines easily find in relaying process, when connection is broken down, are easy to replace.
Launch module 121 for, after receiving this coded signal, this coded signal being sent to the receiver module 131 of suggestion device 130. This coded signal, after receiving coded signal, is sent to decoder module 132 by receiver module 131. Decoder module 132 is for, after receiving coded signal, decoding this coded signal, obtain decoded signal, and this decoded signal is sent to corresponding news road, and each suggestion device 130 has only connect one of them passage in 9 passages. If the news road of this suggestion device 130 is connected with judges module 133, then judge that module 133 is after receiving the decoded signal that decoder module 132 sends, judge that whether this decoded signal is for controlling the suggestion device 130 of this judgement module 133 correspondence, if, then judge that module 133 sends the first drive command to the first luminous module 134, drive the first luminous module 134 luminous; If not, then judge that module 133 sends the 2nd drive command to the first luminous module 134, drive the first luminous module 134 not luminous. Concrete mode can be the first drive command is a high level, 2nd drive command is a lower level, high lower level completes after signal acquisition module 111 is distributed, and the low level prompting signal of band height is fed to coding module 112 and encodes, and in decoder module 132, decoding is out. Photographer sees that suggestion device 130 is luminous, then can learn that pick up camera 140 is taken at present.
Preferably, suggestion device 130 also comprises the 2nd luminous module 135 of luminous module the 135, two and is electrically connected with receiver module 131, and when receiver module 131 does not receive coded signal, the 2nd luminous module 135 is luminous. When receiver module 131 receives coded signal, the luminous module 135 of control the 2nd is extinguished.
Please refer to Fig. 3, it is the structural representation of the suggestion device 130 of a kind of External video camera wireless alerts system that the embodiment of the present invention provides. In embodiments of the present invention, suggestion device 130 is prompting lamp, comprises housing 136, connects structure 137, antenna 138 and switch 139. Connection structure 137, antenna 138, switch 139 are all connected with housing 136. Housing 136 preferably adopts plastic casing, light practicality, and the transparency is strong, waterproof durable.
Connect structure 137 for connecting suggestion device 130 and pick up camera 140. The coded signal that antenna 138 sends for receiving and transmitting unit 120, antenna 138 can adopt various ways, is such as built in housing 136, or stretches out housing 136, and this is not limited by the present embodiment. Switch 139, for controlling the working order of suggestion device 130, such as opens and closes.
Incorporated by reference to consulting Fig. 2, the first luminous module 134 is for being arranged at the LED of enclosure interior, it may be preferred that this LED selects redness. 2nd luminous module 135, for being arranged at the LED of housing outer bottom, preferably adopts blue led lamp to distinguish the first luminous module 135 of luminous module the 134, two. The quantity of the LED that the first luminous module 134 and the 2nd luminous module 135 adopt is not limited by the embodiment of the present invention.
In sum, the External video camera wireless alerts system 100 that the embodiment of the present invention provides comprises main frame 110, launching device 120 and suggestion device 130. Main frame 110 is sent to launching device 120 after being encoded by the switch prompting signal that instructor in broadcasting switches, coded signal is sent to it to the suggestion device 130 after code by launching device 120 again, suggestion device 130 judges after being decoded by coded signal, after confirming as the control signal of self, send information, the prompting current pick up camera of cameraman is taken, and prevents cameraman's broadcast accident that malfunction causes in unwitting situation.
The above; it is only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. an External video camera wireless alerts system, it is characterised in that, comprise main frame, launching device and suggestion device, described main frame and the communication connection of described launching device, described launching device and the communication connection of described suggestion device, described suggestion device is arranged on pick up camera, wherein
Described main frame, for receiving switch prompting signal, transfers to described launching device after being processed by described switch prompting signal;
Described launching device, for launching described switch prompting signal to described suggestion device;
Described suggestion device is used for judging whether when receiving described switch prompting signal to generate information.
2. External video camera wireless alerts system according to claim 1, it is characterised in that, described main frame comprises signal acquisition module and coding module, and described launching device comprises transmitting module, wherein,
Described signal acquisition module is for receiving described switch prompting signal and this switch prompting signal is sent to described coding module;
Described coding module, for being encoded by described switch prompting signal, obtains coded signal, and this coded signal is sent to described transmitting module;
Described transmitting module is for being sent to described suggestion device by the coded signal received.
3. External video camera wireless alerts system according to claim 2, it is characterised in that, described suggestion device comprises receiver module, decoder module, judgement module and the first luminous module, wherein,
Described receiver module is for receiving described coded signal and this coded signal is sent to decoder module;
Described decoder module, for being decoded by described coded signal, obtains decoded signal, and described decoded signal is sent to described judgement module;
Described judgement module is used for driving the described first luminous module according to described decoded signal.
4. External video camera wireless alerts system according to claim 3, it is characterized in that, described judge that whether this decoded signal is suggestion device corresponding to the described judgement module of control to module for judging, if, then judge that module sends the first drive command to the first luminous module, drive the first luminous module luminous; , if not driving the first luminous module not luminous.
5. External video camera wireless alerts system according to claim 3, it is characterized in that, described suggestion device also comprises the 2nd luminous module, described 2nd luminous module is connected with described receiver module, described 2nd luminous module is used for extinguishing when receiver module receives coded signal, and luminous when described receiver module does not receive coded signal.
6. External video camera wireless alerts system according to claim 2, it is characterised in that, the quantity of described suggestion device is multiple, and described launching device sends coded signal to one of them suggestion device in multiple suggestion device.
7. External video camera wireless alerts system according to claim 2, it is characterised in that, described launching device all sends coded signal to multiple suggestion device.
8. External video camera wireless alerts system according to claim 1, it is characterized in that, described suggestion device comprises housing, connects structure, antenna and switch, described connection structure, antenna, switch are all connected with described housing, described suggestion device is connected with pick up camera by described connection structure, described antenna is used for the coded signal that receiving and transmitting unit send, and switch is for controlling the working order of suggestion device.
9. a suggestion device, it is characterised in that, this suggestion device is arranged on pick up camera, and sets up radio communication with a launching device, and this suggestion device comprises the receiver module, decoder module, judgement module and the first luminous module that are electrically connected successively, wherein,
Described receiver module is used for the coded signal that receiving and transmitting unit sends, and described coded signal is sent to described launching device after a host code;
Described decoder module, for being decoded by described coded signal, obtains decoded signal, and this decoded signal is sent to described judgement module;
Described judgement module is used for driving the described first luminous module according to described coded signal.
10. suggestion device according to claim 9, it is characterized in that, described judge that module is for judging that whether this decoded signal is for controlling suggestion device corresponding to described judgement module, if, then judge that module sends the first drive command to the first luminous module, drive the first luminous module luminous; , if not driving the first luminous module not luminous.
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| CN201610209819.8A CN105635592B (en) | 2016-04-06 | 2016-04-06 | External video camera wireless alerts system, suggestion device |
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| CN108632637A (en) * | 2018-05-11 | 2018-10-09 | 浙江大学 | A kind of net cast automatic start-stop method based on sdi signal perception |
| CN110620909A (en) * | 2019-09-23 | 2019-12-27 | 上海东方传媒技术有限公司 | Digital Tally system |
| CN111917938A (en) * | 2020-07-30 | 2020-11-10 | 上海电力大学 | Camera shooting prompt system with field interaction function |
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| CN105635592B (en) | 2019-05-17 |
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