51results about How to "Achieve lossless transmission" patented technology

A method and related user device for executing handover between a multimedia broadcast multicast single frequency network (MBSFN) and non-MBSFN regions of a communication network are disclosed. The communication network includes a first community forming the MBSFN region, a second community not forming the MBSFN region and a keeping community between the first and second communities. The keeping community belongs to the MBSFN region, wherein the broadcast keeping community in the keeping community indicates information. The method includes steps as follows: receiving the indicating information of the keeping community so as to learn that the user device in the keeping community; measuring a first signal intensity transmitted based on MBSFN and aiming to a pre-determined business in the keeping community and a second signal intensity transmitted based on a single community; and selecting the first community or the second community as the target community when the difference between the first and second signal intensities is less than a pre-determined threshold value. This invention is capable of providing continuous MBMS service for user under the condition that the user device moves in different communication regions.

The embodiment of the invention discloses a switching method, a communication system and associated equipment, which are used for realizing lossless switching of data when a service gateway (SGW) changes. The method comprises: sending an end marking package to a target side access element location when an access network changes and a source side SGW changes so as to facilitate the target side access element location of distributing down data from a target side core network according to the indication of the end marking package. The embodiment of the invention also provides the communication system, a service gateway and a packet data network gateway.

The invention discloses a real-time interactive remote medicine system. The real-time interactive remote medicine system comprises an inquiring end, at least one expert end, a data capture repeater component, a network security transmission component, a data transit server component, a real-time behavior control component and a remote medicine control server. In addition, the invention further discloses a real-time interactive remote medicine method based on the real-time interactive remote medicine system. By the real-time interactive remote medicine system and the real-time interactive remote medicine method, real-time medicine synchronization of two-way audio and video communication on both sides can be realized, relevant data information can be subjected to remote checking and real-time transmission, and the interactive audio and video communication can be realized on the basis of sharing of real-time data information; for some local key data information, a nondestructive checking mode can be specified through the expert end, so that the key data information is ensured not to be lost in Internet applications, accuracy of a remote medicine mode is guaranteed, and possibility of medicine errors is avoided.

An intelligent device for switching Camera Link to a serial digital interface (SDI) relates to the technical field of image processing and solves the problems that the existing various cameras based on a Camera Link interface can not display on a monitor directly and quality of displayed images is poor. The device comprises a field programmable gate array (FPGA), a digital signal processor (DSP), a synchronous dynamic random access memory (SDRAM) and an SDI module. The Camera Link interface receives image data output by a camera and transmits the image data to the FPGA, the FPGA conducts noise-reducing processing on the received image data and transmits the image data to the DSP, and the DSP receives the image data through a video port (VP), transmits the image data to the SDRAM to be stored in an EDMA mode, reads the image data in the SDRAM in an external memory interface (EMIF) bus mode and processes the data, and transmits the processed image data to the SDI module. Use and carrying of the device are convenient.

The present invention discloses a user face data inverse-transmitting method for realizing the switching across a base station, which comprises the following steps: data is received by a user face; message protocol dada units PDUs are stored at a high layer, and a lower layer is noticed to process massage protocol; after the massages are successfully transmitted, the PDUs of corresponding massages are deleted by the high layer according to the touching of the lower layer; when is switched, the high layer of a source side base station sends the PDUs of stored massages which need to be transmitted inversely to an target base station. Thus, when data needs to be transmitted inversely, by the linkage of the high layer and the lower layer, the data is directly sent out by the high layer to the target base station, so a data processing path is greatly shortened, and further, the processing time delay in the switching across a base station is extendedly reduced. On the premise that the existing protocol is followed, switched data is moved to the GTPU layer of TNL by inverse-transmitting operation. Thus, not only the lossless transmission of the switched data is realized, but also the inverse-transmitting time delay of the data can be effectively reduced, the repeated data processing and interlayer data copying are largely reduced, and the inverse-transmitting time delay of the user face data is effectively shortened.

The invention discloses a data processing method, a switching method, a device and a system based on cross HSGW switching, wherein, the data processing method based on cross HSGW switching comprises the following steps that: a source access gateway receives a first signaling from a source access network, wherein, the first signaling carries instruction information used for instructing a source access gateway to buffer downlink data packets; the source access gateway obtains the instruction information from the first signaling; the source access gateway receives the downlink data packets; and the source access gateway buffers the downlink data packets according to the instruction information. The data processing method, the switching method, the device and the system based on cross HSGW switching realize lossless transmission of data packets.

The invention relates to a data acquisition system with combined use of a nine-shaft sensor and a Bluetooth module. The system comprises a nine-shaft sensor module, microprocessor modules, a Bluetooth module as well as an FPC flat cable and a computer which are connected with the modules, wherein the microprocessor module and the Bluetooth module are integrated on a same circuit board so as to be used for jointly executing the operations of data acquisition, preprocessing, transmission and the like; the nine-shaft sensor module is independently integrated and is connected with the corresponding microprocessor module by the FPC flat cable, so that data acquired by the nine-shaft sensor can be transmitted to the microprocessor module to be correspondingly processed; the Bluetooth transmission module can be used for achieving data exchange between the microprocessor and the computer.

The invention relates to a four-band remote video monitoring system and a data transmission method thereof. The video monitoring system comprises a visible-light lens, a near-infrared lens, a 3CCD (3 charge coupled device) image detector, a near-infrared image detector, an image collecting and processing device and a remote computer. According to the four-band remote video monitoring system and the data transmission method applicable to frequency conversion transmission of a narrow-bandwidth large data stream of the system, under the condition that a network transmission bandwidth is smaller than an image data bandwidth, the smooth transmission of dynamic video data and the lossless transmission of high-definition image data are achieved flexibly; and multi-band motion state estimation and static state spectral characteristic analysis of a dynamic target are facilitated.

The present invention provides a portable DVR, including a camera, a CPU controller, SD card memory. The camera is connected to the CPU controller by a parellel style, the CPU controller gets a frame picture from the video acquired by the camera, processing by the Retinex method, and recording the processed video to the SD card memory. The invention can acquire vivid human face image information in the monitor information.

The invention discloses an audio matrix host computer, a public broadcasting system, and working methods thereof. The audio matrix host computer comprises a CPU and a digital audio media matrix, a microphone controller, a fire alarm, a fire linkage device, a trigger controller and an external sound source which are respectively connected with the CPU; the CPU receives audio signals from the microphone controller, the fire alarm, the external sound source and the trigger controller, and then obtains the whereabouts of various audio signals, that is audio zones where various audio signals are distributed to; and for each audio zone, the priority of various audio signals distributed to the same audio zone is compared, and then the digital audio media matrix is controlled to output the audio signal with the highest priority distributed to the same audio zone to the corresponding audio zone. The public broadcasting system comprises a plurality of audio matrix host computers, and the CPUs of various audio matrix host computers are in cascade connection. The audio matrix host computer provided by the invention has the advantages of being simple in structure, and does not need complicated connection, so that the installation space and the use cost are saved.

The invention provides a roller bearing feeding device and the feeding device, which relate to the technical field of bearing manufacturing. The roller bearing feeding device includes a conveying module and a material sorting module; the conveying module is connected to the material sorting module, The delivery module is used to transport the roller bearings to the material management module, and the material management module is used to organize the roller bearings; the delivery module is provided with a partition, one end of the partition part is connected to the processing The material module is connected; the partition part includes a plurality of lattice structures, and the plurality of lattice structures are sequentially arranged along the length direction of the partition part. The lattice structures are used to place roller bearings, which alleviates the problem of The utilization rate of the roller bearing feeding device is low, and there are technical problems such as damage to the material.

The invention provides a method and device for transmitting a high-definition video, and the method comprises the steps: carrying out the separation of brightness and chromaticity components of a source image; carrying out the grouping of the brightness and chromaticity components of each row or column of the source image according to the bit level; packaging corresponding groups (4 bits more) according to the values of bits in all groups; packaging the corresponding groups (4 bits lower) according to the distribution condition of numerical values corresponding to bits in the groups; enabling an Ethernet package corresponding to the source image to be placed in a data field of an Ethernet frame in a preset transmission sequence, and enabling the Ethernet frame to be transmitted to the receiving end. According to the embodiment of the invention, the method can improve the transmission efficiency of data, can achieve the lossless transmission of 1080p@60YUV422(16bits) videos.

The invention discloses a wireless network transmitter-receiver set which comprises a protective casing for protecting the internal structure. An antenna plate, a plane sheet reflector, a wireless network adapter module and a cable are packaged inside the protective casing; the antenna plate and the wireless network adapter module are both arranged on the plane sheet reflector; the wireless network adapter module is in radio frequency electric connection with the antenna plate. By means of the wireless network transmitter-receiver set, the network access performance with the transmission distance as long as two kilometers and the downlink rate not smaller than 20 Mbps can be provided; in the using process, only standard outdoor type AP devices are needed, transformation is not needed, and cost of the wireless network transmitter-receiver set is only 1/3-1/2 of the cost of CPE access devices; EIRP indexes of the wireless network adapter module are improved, the receiving sensitivity of the wireless network adapter module is improved, and the functions such as water proofing, dust proofing and ultraviolet proofing are achieved so that the wireless network transmitter-receiver set is suitable for serving as an wireless network access device in countries, outer suburbs and remote regions.