CN201509232U

CN201509232U - Novel video frequency IP telephone

Info

Publication number: CN201509232U
Application number: CN200920209502XU
Authority: CN
Inventors: 杨洁
Original assignee: Shanghai Polytechnic University
Current assignee: Shanghai Polytechnic University
Priority date: 2009-09-10
Filing date: 2009-09-10
Publication date: 2010-06-16
Anticipated expiration: 2019-09-10

Abstract

The utility model discloses a novel video frequency IP telephone, which comprises a transceiver, a driver, a pick-up head, a USB main controller, an audio frequency encoding and decoding device, an earphone and a microphone. The novel video frequency IP telephone is characterized in that a circuit further comprises a processor, the processor is connected with a program storage, a data storage, a power supply management module, the transceiver and the driver, the transceiver and the driver are connected with the USB main controller and the audio frequency encoding and decoding device, the USB main controller is connected with the pick-up head, and the audio frequency encoding and decoding device is connected with the earphone and the microphone. The processor of the utility model is a PXA270 processor, expands the functions of traditional IP telephone, and fetches up the defects of common telephone that none image is available, the volume is small, the transportation is convenient, and the telephone has full image interface and can be simply operated.

Description

Novel video IP phone

Technical field

The utility model relates to a kind of video IP phone, particularly relates to a kind of novel video IP phone based on pxa270.

Background technology

Traditional IP phone is that voice signal is transformed into digital signal, packs and compresses, and transmits on data network.But in recent years, simple voice communication can not have been satisfied the growing demand of carrying out colourful communication of people, people have been not content with and can only have heard voice, development along with the network communications technology, video communication also becomes possibility, carry out face-to-face talk, this point is that traditional IP phone institute is irrealizable.

Traditional video-telephone system, mainly comprise video terminal, basic bearer network and communication server composition, video terminal can be called out the opposite end by the communication server, the communication server is by calling out the routing addressing Correspondent Node, the forwarded call request is if Correspondent Node is agreed to receive then set up video and voice-grade channel.Video terminal is gathered vision signal and is sent to Correspondent Node by video channel, and will be shown on the screen of video terminal from the video flowing that the opposite end receives.

The unicity of conventional video telephone system technology mode, identical with traditional voice call, the telephone service supplier can only obtain commercial return there from the user, but the bandwidth ratio that video-telephone system can take is bigger, will make the user bear more expense, even can not accept, be unfavorable for carrying out the commerce expansion of visual telephone, lack more effective commercial pattern, hindered large-scale development to a certain extent.

Summary of the invention

At the problems referred to above, main purpose of the present utility model is to provide a kind of novel video IP phone, the utility model solves above-mentioned technical problem by following technical proposals: a kind of novel video IP phone, it comprises transceiver and driver, camera, the USB master controller, audio coder-decoder, earphone and microphone, it is characterized in that: described phone also comprises processor, be connected with program storage on the described processor, data storage, power management module and described transceiver and driver, be connected with USB master controller and audio coder-decoder on described transceiver and the driver, be connected with described camera on the described USB master controller, be connected with described earphone on the described audio coder-decoder, microphone.

Wherein, described processor is a flush bonding processor.

Wherein, described flush bonding processor is the PXA270 processor.

Wherein, described transceiver and driver are connected outer online by wireless network card.

The utility model is used video acquisition detection technique, audio collection/play-back technology and network transmission technology based on the PXA270 embedded development platform.Possess the function that both call sides is provided realtime graphic, system mainly is divided into following several sections:

Audio collection/playing module: realize the Audio Processing of IP phone, with full duplex mode work.

Video acquisition/playing module: realize that being reduced into image by the video data that the local image video transmission of camera collection is given dialogue side and received the other side is presented at function on the local terminal screen.

Network transmission module: can realize voice call, also can realize video calling.Because audio frequency, video data format difference need to handle respectively.

Positive progressive effect of the present utility model is: the utility model provides a kind of video IP phone based on PXA270, has expanded the function of Traditional IP phone, has remedied the shortcoming that does not have image; And volume is little, and is easy to carry; The full graphics interface, simple to operate, adopt and get online without being tethered to a cable, as long as network support, can use whenever and wherever possible, can also do the usefulness of terminal monitoring in addition, can fix also can mobile monitor, be widely used in numerous occasions such as factory, bank and sub-district, have comparison vast market and application prospect.

Description of drawings

Fig. 1 is the hardware composition diagram of the utility model system;

Fig. 2 is the software architecture diagram of the utility model system.

Embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.Intel company will have released the most powerful PXA27x series flush bonding processor of performance the end of the year 2003, and PXA27x series flush bonding processor is based on the Xscale core of ARMv5E, and highest frequency can reach 624MHz.As the extremely powerful flush bonding processor of a performance, matching embedded type Linux or Wince operating system, PXA270 can support any media formats in theory, and by software upgrading, supports following media formats.But because media play to the high requirement of hardware, therefore relies on the PXA270 processor to carry out media play merely is unpractical, and practical test result is also undesirable.Therefore, PMP (MP4) function in order to satisfy PXA270 must add 2700G multimedia speed-up chip, cooperates PXA270 to carry out video and quickens to quicken with 3D.

Fig. 1 is the hardware composition diagram of the utility model system, the utility model comprises transceiver and driver as shown in Figure 1, camera, the USB master controller, audio coder-decoder, earphone, microphone and PXA270 processor, be connected with program storage on the PXA270 processor, data storage, power management module and transceiver and driver, be connected with USB master controller and audio coder-decoder on transceiver and the driver, be connected with camera on the USB master controller, be connected with earphone on the audio coder-decoder, microphone, transceiver and driver are connected outer online by wireless network card.

Fig. 2 is the software architecture diagram of the utility model system, and the utility model is used video acquisition detection technique, audio collection/play-back technology and network transmission technology based on the PXA270 embedded development platform.Possess the function that both call sides is provided realtime graphic, system mainly is divided into following several sections:

By audio collection and video acquisition module extraneous voice and view data are collected,, handled accordingly as the input data of the application program of embedded qt through data analysis and arrangement.The application program of embedded qt runs on the embedded os.Embedded like this os need rely on the embedded Linux kernel as operation platform, and this kernel is to carry out cutting and transplanting according to the application facet of real system, and it is little fully to be fit to capacity, fireballing requirement.The normal operation of whole system also will rely on the system drive of audio device drive and webcam driver and standard to support.Because be to transmit, so web socket socket and corresponding protocol support have just guaranteed the functional integrity realization by network.Overall structure is seen Fig. 2

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. novel video IP phone, comprise transceiver and driver (1), camera (2), USB master controller (3), audio coder-decoder (4), earphone and microphone (5), it is characterized in that: described video IP phone also comprises processor (6), be connected with program storage (7) on the described processor (6), data storage (8), power management module (9) and described transceiver and driver (1), be connected with USB master controller (3) and audio coder-decoder (4) on described transceiver and the driver (1), be connected with described camera (2) on the described USB master controller (3), be connected with described earphone and microphone (5) on the described audio coder-decoder (4).

2. novel video IP phone according to claim 1 is characterized in that: described processor (6) is a flush bonding processor.

3. novel video IP phone according to claim 1 and 2 is characterized in that: described flush bonding processor is the PXA270 processor.

4. novel video IP phone according to claim 1 and 2 is characterized in that: described transceiver and driver (1) are connected outer online by wireless network card (10).

5. novel video IP phone according to claim 3 is characterized in that: described transceiver and driver (1) are connected outer online by wireless network card (10).