CN203027360U

CN203027360U - Video playing system based on HDMI (High-Definition Multimedia Interface) video signals

Info

Publication number: CN203027360U
Application number: CN 201220654215
Authority: CN
Inventors: 李森山
Original assignee: SHENZHEN EAST-TOPTECH ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHENZHEN EAST-TOPTECH ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-12-03
Filing date: 2012-12-03
Publication date: 2013-06-26
Anticipated expiration: 2022-12-03

Abstract

The utility model discloses a video playing system based on HDMI (High-Definition Multimedia Interface) video signals. The video playing system based on the HDMI video signals comprises a matrix distributor, modulation amplifiers and a demodulation restorer, wherein the matrix distributor is provided with a plurality of HDMI signal input interfaces and a plurality of HDMI signal output interfaces, and is used for carrying out signal distribution between the HDMI signal input interfaces and the HDMI signal output interfaces; each HDMI signal output interface is connected with one modulation amplifier; the modulation amplifiers are used for modulating and amplifying HDMI signals to form network signals; and the demodulation restorer is connected with the modulation amplifiers through network cables and is used for restoring the network signals to the HDMI signals. The video playing system based on the HDMI video signals provided by the utility model effectively integrates the functions of a video matrix, distribution, transmission and signal restoring, so as to form a video integration system with strong functions. The video playing system based on the HDMI video signals has the advantages of long service life and low cost, is convenient to use, can be applicable to large-size fields, such as a station, a school and a large-size supermarket, solves the ideal scheme of the field video playing requirement, and has a wide market prospect.

Description

Audio/video player system based on the HDMI vision signal

Technical field

The utility model relates to video system, relates in particular to a kind of audio/video player system based on the HDMI vision signal.

Background technology

AT STATION, shopping mall etc. takes up an area larger public place, need to play news, film, advertisement etc. with HDTV (High-Definition Television) in each gateway, have that transmission range is long, the transmission orientation is many, signal is easily lost when playing or the problem such as unstable the zone of several ten thousand square meters is synchronous, can't normally watch thereby cause.The solution of prior art is: the signal source of input is linked in distributor, then tells the high-definition video signal of multiple HDMI interface to television set.But this wherein uses possibly tens distributor steps and distributes the transmission range that just can reach more than 100M, and this has caused the step decay of signal and the increase of use cost undoubtedly, and has increased the wiring difficulty.Also have in addition kind of a mode, can transmit by wireless mode, but the high-definition video signal of wireless transmission HDMI, unstable, poor anti jamming capability, the longest coverage is also 50M, radiation to human body also can not be ignored, and the HD video system cost of wireless transmission is very expensive.Need in the industry a kind of transmitting device of invention badly, can guarantee signal long-distance transmission and undamped, can save cost again, make project installation become simpler.

The utility model content

The utility model is the problems referred to above that will solve prior art, proposes a kind of audio/video player system based on the HDMI vision signal.

For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of audio/video player system based on the HDMI vision signal of design, it comprises: the matrix allocation device, have at least two HDMI signal input interfaces and two HDMI signal output interfaces, distribute in order to carry out signal between HDMI signal input interface and HDMI signal output interface; Modulated amplifier, each HDMI signal output interface all connects a modulated amplifier, in order to the modulation of HDMI signal is enlarged into network signal; The demodulation reductor connects modulated amplifier by netting twine, in order to the network signal demodulation is reduced to the HDMI signal.

The matrix allocation device has a HDMI signal input interface connection mode number converter at least, and analog to digital converter is the HDMI signal with the VGA analog signal conversion.

Described matrix allocation utensil has 16 HDMI signal input interfaces and HDMI signal output interface, and modulated amplifier and demodulation reductor all have 16.

The utility model application relates to the fields such as the multimedia teaching, teleconference, large-scale shopping supermarket, scientific research, meteorology of military project, subway, school.Be mainly used in video conference, video monitoring, the video playback such as advertisement and information issue.The military camp of army is the officers and men recreating facilities, need to be in the different a lot of video display terminal (VDT)s of framework, the inside, place.The utility model can be inputted different signal sources, can be unidirectional or multidirectional, be transferred to different rest and entertainment places by long apart from netting twine.Subway, school also can use the utility model.By the multi-signal that central control room is inputted, the network cable transmission of long distance is received television equipment and is shown to different places.Large-scale shopping supermarket equally also can be used the utility model.

Compared with prior art, the effective integrated video matrix of the utility model, distribution, transmission, signal restoring function form powerful video integrated system.Have advantages of that long service life, cost are low, easy to use.Applicable to large-scale places such as subway, station, school, large-scale shopping supermarkets, be the ideal scheme that solves above-mentioned place video playback demand, have wide market prospects.

Description of drawings

Below in conjunction with drawings and Examples, the utility model is made detailed explanation, wherein:

Fig. 1 is the theory diagram of the utility model preferred embodiment;

Fig. 2 is matrix allocation device theory diagram;

Fig. 3 is the modulated amplifier theory diagram;

Fig. 4 is demodulation reductor theory diagram;

Fig. 5 is the analog to digital converter theory diagram.

Embodiment

The utility model has disclosed a kind of audio/video player system based on the HDMI vision signal, referring to Fig. 1, it comprises three parts at least: a matrix allocation device, a plurality of modulated amplifiers of connection matrix dispenser output end, the demodulation reductor that is connected with modulated amplifier by netting twine.Matrix allocation device input termination high-definition signal source, the demodulation reductor connects television set.Reach by this digital high-definition signal that contains multichannel input is selected wherein one road signal, carry out the purpose (longer transmission distance can reach 300M) of loss-free long range signals transmission by single netting twine.Having simultaneously the signal matrix function, is namely the multiple signals of input selectively to be outputed to one tunnel or multiple signals of certain appointment.The purpose of realize AT STATION, HD video being play in the large-scale places such as school, supermarket.

Referring to Fig. 2, the matrix allocation device shown in figure has 4 HDMI signal input interfaces and 4 HDMI signal output interfaces.The HDMI signal input interface various high-definition signals of connection source can receive a plurality of movie and video programs simultaneously; Distribute through switching, by HDMI signal output interface output high-definition signal, the movie and video programs of each HDMI signal output interface output can be the same or different.In the preferred embodiment of Fig. 1, the matrix allocation utensil has 16 HDMI signal input interfaces and 16 HDMI signal output interfaces.Modulated amplifier and demodulation reductor all have 16.Control inputs that can be unidirectional, multidirectional and output signal.In actual use, with convenient, and realize complete intelligent working method, only need to control with regard to the signal of each terminal of energy in the control room, go execute-in-place to control and need not the special messenger.

Referring to Fig. 3, modulated amplifier is connected to the HDMI signal output interface, has what HDMI signal output interfaces just to be equipped with the modulated amplifier of equal number.Modulated amplifier converts thereof into the TTL rgb signal with the HDMI standard signal of input by the conversion of I2C control signal.Through Signal coding, amplification, be input to network drive in the MI2 mode, be output as at last the network standard signal.

Referring to Fig. 4, the demodulation reductor, input connects modulated amplifier by netting twine, output connecting TV machine.The demodulation reductor is reduced into the TTL rgb signal with network standard signal decompress(ion), demodulation, then is converted to the HDMI standard signal through signal, plays in last television set endways.

For enlarging the native system function, the VGA analog signal is play in transmission.The matrix allocation device has a HDMI signal input interface connection mode number converter at least.Referring to Fig. 5, first the VGA analog signal conversion is become digital TTL rgb signal, then convert the TTL rgb signal to the HDMI signal, then the HDMI signal is transferred to the matrix allocation device.8 groups of analog to digital converters are arranged in the preferred embodiment shown in Fig. 1, and matrix allocation device input can connect 8 VGA analog signals and 8 HDMI signals.

Above embodiment is only for illustrating, non-providing constraints.Anyly do not break away from the application's spirit and category, and to its equivalent modifications of carrying out or change, all should be contained among the application's claim scope.

Claims

1. the audio/video player system based on the HDMI vision signal, is characterized in that, comprising:

The matrix allocation device has at least two HDMI signal input interfaces and two HDMI signal output interfaces, distributes in order to carry out signal between HDMI signal input interface and HDMI signal output interface;

Modulated amplifier, each HDMI signal output interface all connects a modulated amplifier, in order to the modulation of HDMI signal is enlarged into network signal;

The demodulation reductor connects modulated amplifier by netting twine, in order to the network signal demodulation is reduced to the HDMI signal.

2. the audio/video player system based on the HDMI vision signal as claimed in claim 1 is characterized in that: at least one HDMI signal input interface connection mode number converter, and in order to being the HDMI signal with the VGA analog signal conversion.

3. the audio/video player system based on the HDMI vision signal as claimed in claim 1, it is characterized in that: described matrix allocation utensil has 16 HDMI signal input interfaces and HDMI signal output interface, and modulated amplifier and demodulation reductor all have 16.