CN201341208Y

CN201341208Y - Wireless remote video monitor device

Info

Publication number: CN201341208Y
Application number: CN 200820228234
Authority: CN
Inventors: 李洋; 陈刚
Original assignee: SHAANXI EYINHE ELECTRONIC CO Ltd
Current assignee: SHAANXI EYINHE ELECTRONIC CO Ltd
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-11-04
Anticipated expiration: 2018-12-12

Abstract

A wireless remote video monitor device comprises a camera, a video server and a wireless communication module. A simulated video signal output by the camera is connected with an input end of the video server through a coaxial cable, and an output end of the video server is connected with the wireless communication module. The circuit of the wireless communication module utilizes at least two CDMA IX modules. The wireless remote video monitor device realizes real-time collection, processing and wireless transmission of multimedia streams in a CDMN IX mobile communication network with only 100kbps band width. The video server utilizes an embedded chip, realizes H.264 hard compression standards of videos, is higher in compression rate, reduces delay time of video transmission, and increases video transmission quality. The wireless remote video monitor device utilizes the multi-card transmission technique, increases band width, and is high in frame rate and smooth in screen when transmitting images with identical codes. The wireless remote video monitor device can be mounted on a moving carrier or carried by a user to move in a wide range, thereby realizing real-time collecting and remote transmitting video images for surrounding environments of the moving carrier or emergency fields.

Description

Wireless remote video monitoring equipment

Technical field

The utility model relates to a kind of monitoring remote video field, further relates to the equipment that a kind of CDMA of utilization 1X network carries out wireless remote video monitoring.

Technical background

In the wireless remote monitering field, existing wireless monitoring technology mainly contains following two kinds: a kind of is to utilize wireless router and wireless camera to form, and realizes video monitoring by the wireless local net mode on network.For example, the IP 7138 type wireless monitor web cameras that Taiwan Vivotek (VIVOTEK) company produces, the advantage of this wireless monitor web camera is a video transmission speed height, shortcoming is that emission, receiving range are near, and it is big disturbed by outer signals.Another kind is the wireless monitoring equipment that utilizes wireless public communication network, for example, the disclosed patented technology of " wireless mobile video monitor terminal " utility model patent (200420076736.9) has adopted the CDMA1X network to carry out the long-distance video transmission, the advantage of this patented technology is a long transmission distance, but because this mode adopts CDMA 1X network (about the general 100kbps of bandwidth), be subjected to the network bandwidth and flow restriction, limitation is big, the interrupted of signal can appear, the unsharp problem of video image that terminal receives.

The utility model content

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provide and utilized CDMA 1X network to carry out wireless remote video monitoring, adopt damascene structures, can realize the wireless remote video monitoring equipment of real-time collection, processing and the wireless transmission of media stream.

The utility model comprises video camera, video server, wireless communication module circuit.Video camera adopts field of video monitoring CCD colour/thermal camera commonly used, is used to finish capture video images and signal color separation filtering and enlarging function, and the analog video signal of video camera links to each other with the input of video server by video coaxial cable.The output of video server links to each other with the wireless communication module circuit.Video server adopts the H.264 embedded chip of coding, and this chip is carried out video acquisition and compressed encoding program, realizes video coding compression and controlled function.The wireless communication module circuit adopts at least two CDMA 1X wireless communication modules, has CDMA 1X network connection port agreement in each communication module, can be connected and exchanges data with CDMA 1X base station, carries out the wireless transmission of vedio data.

The beneficial effects of the utility model mainly show:

The first, the utility model only is in the CDMA 1X wireless mobile communication network of 100kbps in bandwidth, has realized real-time collection, processing and the wireless transmission of media stream.

Second, the utility model is realized the hardware-compressed of vision signal because video server adopts the H.264 embedded chip of coding, and is higher than existing wireless mobile video watch-dog compression ratio, reduce the delay time of video transmission, improved the transmission of video quality.

The 3rd, the utility model has improved wireless network bandwidth owing to adopt many card simultaneous interpretation technology, so when the image of transmission same-code, the transmission frame per second is higher, picture is smooth more.

The 4th, the utility model clear picture, image resolution ratio is 352 * 288, is up to state standards more than the level Four.

The 5th, the utility model can be installed in motion carrier (as automobile, train etc.) or be carried by the people, carries out on a large scale moving, and realizes the motion carrier surrounding environment or the accident scene is carried out the real-time collection and the remote transmission of video image.

Description of drawings

Fig. 1 is the utility model functional-block diagram.

Fig. 2 is the utility model video acquisition compressor circuit schematic diagram.

Fig. 3 is the utility model memory circuit schematic diagram.

Fig. 4 is the utility model interface circuit schematic diagram.

Fig. 5 is the utility model wireless communication module circuit theory diagrams.

Among the figure, 1 is that video camera, 2 is that video server, 3 is that wireless communication module circuit, 4 is that primary processor, 5 is that video capture processor, 6 is that pin-saving chip, 7 is that network controller, 8 is that interface chip, 9 is a wireless communication module.

Embodiment

Below in conjunction with accompanying drawing, the utility model operation principle and flow process are described in further detail:

Video camera 1 among Fig. 1 is finished the catching of video image, color separation filtering and is amplified the form output of back with analog video signal.The analog video signal of video camera 1 output is input in the video server 2 by video coaxial cable, through after the digitalization compressed encoding process of video server 2 signal is input to wireless communication module circuit 3.Wireless communication module circuit 3 can be launched vision signal, and receiving terminal promptly can be accepted vision signal and obtain video image through the row decoding.

Pin CAM_PCLK, the CAM_VSYNC of the primary processor 4 in the video acquisition compressor circuit of Fig. 2, CAM_HREF, CAMCLK, CAMRST, EINT20, I2CSDA, I2CSCL are corresponding with pin CAM_PCLK, CAM_VSYNC, CAM_HREF, CAMCLK, CAMRST, EINT20, I2CSDA, the I2CSCL of video capture processor 5 respectively to link to each other the CAMDATA[0..7 of primary processor 4] CAMDATA[0..7 of each pin and video capture processor 5] each pin is corresponding continuous by bus.

The analog video signal of video capture processor 5 acquisition camera 1 output also carries out digital coding, digital signal through digital coding enters primary processor 4, under the control of primary processor 4, embedded software can further carry out the digital signal that obtains the digitalization compressed coding and obtain the H.264 digital video signal of form.

The D[0..16 of the pin-saving chip 6 in Fig. 3 memory circuit] D[0..31 of each pin by the primary processor 4 in bus and Fig. 2 video acquisition compressor circuit] each pin of .HI is corresponding links to each other the A[0..21 of pin-saving chip 6] A[0..26 of each pin by primary processor 4 in bus and Fig. 2 video acquisition compressor circuit] each pin of .HI is corresponding continuous.LnOE, LnWE, each pin of nGCSO, nRESET of primary processor 4 in each pin of the LnOE of pin-saving chip 6, LnWE, nGCSO, nRESET and Fig. 2 video acquisition compressor circuit is corresponding to link to each other.

Pin-saving chip 6 is mainly used to store embedded software, so that the primary processor 4 in Fig. 2 video acquisition compressor circuit calls, carries out the realization of video compression and transmission and controlled function.

The D[0..16 of network controller 7 in Fig. 4 interface circuit] D[0..31 of each pin by primary processor 4 in bus and Fig. 2 video acquisition compressor circuit] each pin of .HI is corresponding links to each other, the A[0..26 of primary processor 4 in the CMD of network controller 7 and Fig. 2 video acquisition compressor circuit] A25 among the .HI links to each other, the LnOE of network controller 7, LnWE, the LnOE of primary processor 4 in nRESET and Fig. 2 video acquisition compressor circuit, LnWE, each pin of nRESET is corresponding to link to each other the nWAIT of network controller 7, NETACT, the nWAIT of primary processor 4 in each pin of NETLINK and Fig. 2 video acquisition compressor circuit, NETACT, each pin of NETLINK is corresponding to link to each other.NRESET in the interface chip 8, TMS, TCK, TDO, each pin of TDI, nTRST is corresponding with nRESET, TMS, TCK, TDO, each pin of TDI, nTRST of primary processor 4 in Fig. 2 video acquisition compressor circuit links to each other.

Network controller 7 provides wired network interface, realizes video monitoring by cable network, and interface chip 8 is used for finishing embedded software upgrading and equipment debugging.

Fig. 5 wireless communication module circuit adopts the CDMA 1X wireless communication module 9 of at least two same models.D[0..15 in the wireless communication module 9], A[0..21] each pin D[0..31 by primary processor 4 in bus and Fig. 2 video acquisition compressor circuit respectively] corresponding linking to each other of each pin of .HI, [0..26] .HI, TMS, TCK in the CDMA 1X wireless communication module 9 of same model, each pin of TDO, TDI are corresponding with TMS, TCK, each pin of TDO, TDI of primary processor 4 in Fig. 2 video acquisition compressor circuit continuous.IO_INT10, IO_INT14 in the CDMA 1X wireless communication module 9 of same model, IO_INT8, IO_INT20, each pin of IO_INT26, IO_INT27 are corresponding with EINT8, EINT9, EINT10, EINT11, each pin of EINT12, EINT13 of primary processor 4 in Fig. 2 video acquisition compressor circuit respectively to link to each other.

Owing to have CDMA 1X network connection port agreement in each CDMA 1X communication module 9, can be connected and exchanges data with the CDMA1X base station, so form H.264 encoded video through digital coding, be connected and exchanges data with CDMA 1X base station by CDMA 1X communication module 9, realize the wireless transmission of vedio data, receiving terminal promptly can be accepted vision signal and obtain video image through the row decoding.

Claims

1. wireless remote video monitoring equipment, comprise video camera, video server, wireless communication module circuit, it is characterized in that: the analog video signal of described video camera (1) output links to each other by the input of video coaxial cable with video server (2), and the output of video server (2) links to each other with wireless communication module circuit (3); Described wireless communication module circuit (3) adopts at least two CDMA 1X wireless communication modules (9).

2. wireless remote video monitoring equipment according to claim 1 is characterized in that: described video camera (1) adopts the CCD colour/thermal camera of video monitoring.

3. wireless remote video monitoring equipment according to claim 1 is characterized in that: described video server (2) adopts the H.264 video server of coding.

4. wireless remote video monitoring equipment according to claim 1 is characterized in that: described video server (2) adopts the H.264 system-level embedded chip of SOC of coding.