58results about How to "Data transfer is smooth" patented technology

The invention provides a method and a device for processing packets by a PDCP layer. After receiving a protocol data unit (PDU), the PDCP layer on a receiving end compares the values of a PDU serial number and a next PDU serial number expected to be received of state variables, determines whether the PDU is a normal pocket or an out-of-order pocket according to the comparison results; if the PDU is the out-of-order pocket, the RX_HFN is kept not to be changed, and the SDU formed by the PDU is discarded; if the PDU is the normal data pocket, whether the serial number of the PDU is overturned ornot is further judged, if yes, the value of the RX_HFN is added by 1, and the SDU formed by the PDU is submitted to an upper layer; if no, the value of the RX_HFN is kept not to be changed, and the SDU formed by the PDU is submitted to the upper layer, thus maintaining synchronism of the RX_HFN on the receiving end and the RX_HFN on transmitting end, and ensuring that the data transmission can becarried out smoothly.

The invention provides a bearer management method and a bearer management device in an equipment direct-communication system. The method comprises the steps as follows: remote UE receives D2D bearer configuration information sent by a relay node; and the remote UE completes D2D bearer configuration according to the D2D bearer configuration information.

The embodiment of the invention discloses a data transmission method and device of a terminal. The data transmission method comprises the following steps: the terminal interacts application data with a server through a first port by virtue of a first access node; in the situation that one port in a second port set is in an opening state, the port, which is in the opening state, in the second port set accesses one access node in a candidate access node set; based on a multipath TCP transmission protocol, the port in the opening state interacts application data with the server through the access node corresponding to the port in the opening state. According to the data transmission method, the purposes of fully utilizing network resources in aggregation or switching of data transmission links and improving the data transmission efficiency are realized.

A transmission rate control method for controlling a transmission rate of uplink user data, based on a received relative transmission rate of the uplink user data which is transmitted via an E-RGCH, includes: transmitting, at a radio base station, any one of Up command which instructs to increase the transmission rate of the uplink user data, Down command which instructs to decrease the transmission rate of the uplink user data, or Don't care command which instructs to maintain the transmission rate of the uplink user data, to the mobile station via the E-RGCH, as the relative transmission rate; and maintaining, at the mobile station, the transmission rate of the uplink user data, when the mobile station receives the Down command or the Don't care command, and when the uplink user data to be transmitted become empty in a transmission buffer of the mobile station.

The invention relates to an individual soldier helmet type emergency command system based on various 3G (3rd-Generation) wireless networks, belonging to a system for wireless multifunctional communication based on an individual soldier knapsack and a helmet platform structure. The individual soldier helmet type emergency command system comprises a fully functional helmet, a master controller, the individual soldier knapsack and an operation box. The fully functional helmet is provided with a video camera, an illuminating lamp, a video display unit, a touch sensing type microphone and bony earphones. The master controller is arranged in the individual soldier knapsack. A wireless communication module, a five-path communication antenna, a multi-mode wireless communication module, a network exchange module and a data acquisition and exchange interface are arranged in the master controller. An individual soldier knapsack belt is provided with the operation box. The system does not need to be externally connected with display devices, supports traditional various 3G networks for two-way wireless transmission and interaction of audio and video signals and data, and can be used for executing a plurality of functions, such as remote command, wireless video sessions, image transmission, wireless reconnaissance, wireless measurement, and the like.

The invention relates to a dangerous chemical liquid safe storage and transportation and fixed-point placement method based on a mobile robot. The dangerous chemical liquid safe storage and transportation and fixed-point placement method based on the mobile robot comprises the steps that a moving trolley system moves from the designated position of the dangerous chemical solution to a designated detection point according to a planned route; a dangerous chemical solution storage system is started; a multi-joint mechanical arm system receives a solution discharging instruction and moves to the position above the dangerous chemical solution storage system; and the multi-joint mechanical arm system controls a clamp system to place the dangerous chemical solution to the designated detection point. The dangerous chemical liquid safe storage and transportation and fixed-point placement method based on the mobile robot is suitable for the high-risk dangerous chemical solution sampling and detecting stage, a dangerous chemical solution extraction system based on the mobile robot is introduced, so that a fixed type dangerous chemical solution extracting device used in a high-risk environment is replaced by a mobile robot dangerous chemical solution extracting device resistant to radiation and corrosion, and therefore efficient, quantitative and visual extracting operation of the dangerous chemical solution is achieved.

The invention provides a portable communication device for detecting electric transmission and transformation equipment and a data transmission method of the portable communication device. The communication device comprises a detection data collection unit, a voice interaction unit, different types of network signal transmission units, a detection date collection unit, a multi-network intelligent matching communication unit and a data processing unit. According to the portable communication device, images, operation states, fault parts and detection data of equipment dispersed on various inspection sites can be dynamically transmitted to a remote operation and maintenance monitoring and repairing center in a wireless communication manner in real time; various information on the scene is provided for technical experts and fault diagnosis experts dispersed in different places; the audio and video consultation decision is carried out by remote experts and site operation personnel; the fault part and the fault reason can be visually, rapidly, accurately and efficiently analyzed and judged; the diagnosis accuracy and the repairing efficiency are improved; various potential losses which can be caused by the fault of the electric transmission and transformation equipment are reduced to the maximal extent.

A communication method and a communication apparatus for smooth facsimile data transmission in both of facsimile communication via the Internet and facsimile communication without the Internet. In a case where facsimile communication via the Internet based on the ITU-T Recommendation T.38 is selected in a FAX 100 and data is transmitted to a FAX 108, the upper limit of communication speed is set to 14.4 kb/s, a T4 timer is set to 4 sec, and a T2 timer is set to 8 sec. On the other hand, in a case where facsimile communication only via a PSTN which is not based on the ITU-T Recommendation T.38 is selected in the FAX 100 and communication is performed to a FAX 110, the communication speed up to 33.6 kb/s without upper limit can be performed. Further, the T4 timer is set to 3 sec and T2 timer is set to 6 sec in conformity with the ITU-T Recommendation T.30.

The invention provides PCIe (Peripheral Component Interface express) bus based channel allocating, releasing, data transmitting method and system. The PCIe bus based channel allocating method comprises the following steps: dividing a management area from PCIe space, finding an idle area adapted to channel allocating application through an idle area chain table stored in the management area and marking off a channel for connecting a sending end with a receiving end, wherein the PCIe space represents a window of RC (Root Complex) accessing an EP (End Point) storage area, the RC is capable of obtaining the channel allocating application first time and identifying the channel allocating application in the management area; both the management area and a resource pool are located in the PCIe space to ensure that the management area is capable of finding the idle area adapted to the channel allocating application through the idle area chain table stored in the management area first time and marking off the channel for connecting a sending end with a receiving end from the resource pool. Therefore, the PCIe bus based channel allocating, releasing, data transmitting method and system, provided by the invention, are capable of effectively managing the resource pool.

The invention relates to a method for automatic positioning and quantitative extraction of a dangerous chemical solution based on a mobile robot. A mobile car system moves to a designated dangerous chemical solution point according to a planned route, and then sends a control signal to a multi-joint mechanical arm system; the multi-joint mechanical arm system controls a quantitative liquid extracting device of a clamp system to rotate to a work position and move to a proper position of the dangerous chemical solution point; the multi-joint mechanical arm system controls the quantitative liquid extracting device through the clamp system to perform quantitative liquid extraction under the guidance of a visual ultrasonic testing system; the dangerous chemical solution is transferred to a dangerous chemical solution storage system; the collection of the dangerous chemical solution at other dangerous chemical solution points is completed according to planned routes; the dangerous chemical solution storage system is closed; and points of the multi-joint mechanical arm system return to zero point positions. By introducing a dangerous chemical solution extraction system based on the mobile robot, fixed type dangerous chemical solution extraction devices used in different high-risk environments are replaced with radiation-resistant and corrosion-resistant mobile robot dangerous chemical solution extraction devices, so that efficient, quantitative and visualized extraction operations of the dangerous chemical solution are implemented.

The embodiment of the invention provides a message sending method and apparatus, a chip and a terminal. The method is applied to the terminal, and the terminal comprises a baseband processor, an application processor and a communication interface. The method comprises the following steps: the baseband processor reports information of a first message to the application processor, wherein the firstmessage is a to-be-sent message discarded by the baseband processor; the application processor transmits a second message to the baseband processor according to the information of the first message, wherein the second message is the same as the first message; and the baseband processor sends the second message to a network device through the communication interface. In this way, the message retransmission delay of the terminal can be reduced to a certain extent, and the data communication between the terminal and the network is smoother.

The invention provides imaging equipment, an information processing method, an imaging equipment management system and a management method. The imaging equipment comprises an imaging device; the imaging device comprises a control module for acquiring working state information of the imaging device, a narrow-band internet of things communication module connected with the control module, and an antenna connected with the narrow-band internet of things communication module; the narrow-band internet of things communication module is used for sending the working state information to a narrow-band communication network through the antenna, thereby enabling a service server to acquire the working state information through the narrow-band communication network. Through the imaging equipment, the information processing method, the imaging equipment management system and the management method provided by the invention, the management on the imaging device through the network can be realized, andthe convenience is improved.

A transmission rate control method, includes: transmitting, at a radio base station, a relative rate grant channel which includes a command for controlling a transmission rate in uplink to a mobile station; and determining, at the mobile station, that the relative rate grant channel which includes a HOLD command for instructing to maintain the transmission rate is received at the mobile station, when data to be transmitted becomes empty in a transmission buffer and a receive signal in the relative rate grant channel is detected as “0” or “+1”, and maintaining the transmission rate.

The invention relates to an automatic measurement device for a cold aerodynamic field of a boiler. The automatic measurement device comprises a wind speed probe, a data acquisition device connected with the wind speed probe, a main control unit connected with the data acquisition device and a support fixing device for fixing the wind speed probe, wherein the support fixing device comprises a support, a vertical supporting rod arranged on the support and a transverse supporting rod connected with the vertical supporting rod via a fixing clip; the wind speed probe is arranged on the transverse supporting rod; the wind speed probe, the data acquisition device and the main control unit are connected, and the wind speed probe is fixed by the support fixing device at the same time; the automatic measurement device is simple and convenient to install, accurate in measurement, smooth in data transmission and high in working stability, avoids measurement of testers, brings great convenience to field test, shortens the experimental time, and greatly improves the working condition of experimenters.

The invention relates to a method and a system for obtaining multiple visual medical services rapidly based on LBS. According to the method, an LBS device receives interest point thematic map data marked with service items and uploaded by a medical service institution; the LBS device acquires location information reported by a user; service items and interest points, which meet requirements, near the geographical location in geographical location information are screened on the LBS device according to the location; and the service items and the interest points are displayed on an LBS interface of a mobile terminal user so that the mobile terminal user can make an appointment for video items. The user establishes visual data exchange with a medical service main body through an LBS medium so that a user acquires needed personalized video data from mass information conveniently, a positioning technology is used, visual communication increases the reality of on-line medical service information, and the network medical credibility is improved.

The invention discloses a network camera supporting two-way voice talkback. The network camera comprises a data monitoring center, a central processing unit, a data register and an audio output port. The central processing unit is connected with the data register and the data monitoring center respectively. The data register is connected with the data monitoring center. The central processing unit and the data monitoring center are respectively connected with the audio output port. A talkback input-output interface is arranged on the central processing unit. By means of the network camera supporting two-way voice talkback, the two ways of voice data are transmitted sequentially and do not interfere with each other, two-way voice talkback is supported, data transmission is smooth, system adaptability is strong, and the later maintenance cost is low.

The invention provides a relay device and an information forwarding method. The relay device is connected with multiple nodes, and the relay device comprises a signal relay module, a signal monitoringmodule and a signal processing module, wherein the signal relay module is used to determine two target nodes from the multiple nodes to perform communication according to a transmission task and relay communication signals between the two target nodes, relay signals are produced in a relay process, and the relay signals are used for the two target nodes to perform data transmission; the signal monitoring module is used to acquire the relay signal strength in the relay process of the signal relay module and send the relay signal strength to the signal processing module; and the signal processing module is used to compare the relay signal strength with a preset signal strength threshold, and if the relay signal strength is less than the preset signal strength threshold, the relay signals are strengthened. According to the scheme of the invention, the communication signals between the target nodes can be relayed, the relay signal strength in the relay process can be monitored, the relaysignal strength can be continuously guaranteed, and smooth data transmission can be achieved.

The invention discloses a transmission control method of bidirectional voice and operation control data and a system thereof. A control terminal and a host are included. The control terminal comprises a sampling module, a playback module, a terminal audio encoding and decoding module, a button control module and a terminal transmission module. The host comprises a host analysis module and a host transmission module. The host transmission module is connected to the host analysis module. The terminal transmission module is connected to the host transmission module and the button control module respectively. The sampling module generates a voice simulation signal. The terminal audio encoding and decoding module encodes the voice simulation signal into a voice digital signal and packs into a voice packet. The button control module generates operation control data. The terminal transmission module establishes a time sharing reuse mechanism to carry out queuing transmission on the voice packet and the operation control data, and cooperates with the host to schedule all the control terminals. A low delay transmission problem to a large data flow under a narrow bandwidth is solved, and synchronous transmission of the bidirectional voice and operation control data of multiple users during concurrent connection can be effectively guaranteed.

The invention relates to an SST driving structure. The structure comprises a power supply end, a first driving module connected with the power supply end, a second driving module connected with the power supply end, a third driving module connected with the first driving module, a fourth driving module connected with the second driving module, and a grounding end connected with the third driving module and the fourth driving module, each of the first driving module, the second driving module, the third driving module and the fourth driving module comprises a main switch for controlling current injection and a current source which is connected with each main switch and is used for realizing output differential amplitude adjustment; the SST driving structure realizes balance adjustment and output differential amplitude adjustment at the same time through the first driving module, the second driving module, the third driving module and the fourth driving module.