595results about How to "Timely transmission" patented technology

An image retrieval system has a network server, at least one client terminal and a data archive of a multiuser file management system, spatially separated from server and client, of a file server. A reduced data stream is now transmitted between server and client and includes a header for transmitting address and meta information with an additional data field that includes an access key to the bulk data stored in the external data archive. This reduces the data volume to be transmitted during image retrieval, and thus reduces the network utilization in the transmission of the data stream occurring between server and client. As a result of this, the time period required to transfer the modified data stream between server and client terminal is correspondingly short.

The invention discloses an intelligent early warning and fire extinguishing robot. The intelligent early warning and fire extinguishing robot is formed in the mode that a temperature sensor, a smoke sensor, a flame sensor, a pan-and-tilt camera, a two-freedom-degree mechanical arm, a fire extinguisher and a controller are installed on a wheel type vehicle, the two-freedom-degree mechanical arm is installed on the side of the fire extinguisher in a surrounding mode, and the temperature sensor, the smoke sensor, the flame sensor, the pan-and-tilt camera, the two-freedom-degree mechanical arm are connected with the controller in an electric loop mode. The intelligent early warning and fire extinguishing robot is high in anti-interference ability, good in space applicability, capable of monitoring fire flame videos of a tiny fire source at the beginning of a fire, high in fire early warning accurate and low in false alarm rate.

The present invention discloses a discontinuous reception method and a terminal device. The method includes the following steps that: target to-be-transmitted data which are required to be transmitted through an uplink grant-free transmission resources are determined at the terminal device; when it is determined that the terminal device is configured with discontinuous reception and in a sleep state, the terminal device enters an active state; and the terminal device can transmit the target to-be-transmitted data to a network device through the uplink grant-free transmission resources. With the discontinuous reception method provided by the embodiments of the invention adopted, even if the terminal device is in the sleep state, it can be effectively ensured that the terminal device can transmit the target to-be-transmitted data, and therefore, the energy of the terminal device can be saved, and at the same time, low time delay in the transmission process of the target to-be-transmitted data can be ensured, and the timely transmission of the target to-be-transmitted data can be realized.

The invention discloses a wireless sensor network signal synchronous acquisition and on-time and real-time transmission method; wireless nodes in a wireless sensor network are divided into three kinds: a central node, a trunking node and a wireless sensor node, wherein, the central node is connected with a computer of a detection center for data transmission between the network and the computer; the trunking node and the central node are combined to a multi-hop chain type topological structure to realize a data long-distance transmission network; according to the information received from the trunking node, the wireless sensor node selects to join to a detecting unit controlled by a certain trunking node in order to send the own acquired data to the trunking node. In addition, the wireless sensor network adopts vibration signals to sample an initialization mode before the beginning and sample an on-time and real-time data transmission mode after the beginning. The wireless sensor network is characterized in low power consumption, large distribution range, timely and accurate detecting signal transmission, etc., and is suitable for wide popularization in the field of large-scale civil structure vibrating state detection.

This invention discloses an electro mobile power managing system, including the battery monitoring / control circuit and charge and discharge circuits, and the two connect to the accumulator. The relating battery monitoring / control circuits can real time monitor the parameters of the voltage, charge and discharge current and temperature and etc of the accumulator, and make proper protective and control order to the charge and discharge circuits based on the parameters. The relating circuits have series and equalizing charge and discharge circuits, the sampling battery state data automatically judges and makes the choosing and controlling orders based on the battery monitoring / controlling circuits, and series or equalizing charges the accumulator. In addition, the batter monitoring / controlling circuit connects to ECU through CAN communication bus, and displays the accumulator state information on the instrument board.

The invention discloses a digital meter recognition system and method based on vision. The system comprises a digital meter, a vidicon for collecting dial plate images of the digital meter and a PC for image digital recognition. The vidicon is connected with the PC through a USB interface or an image collecting card. The vidicon collects digital meter images and uploads the digital meter images to the PC. The PC carries out image preprocessing, image character segmentation and character tilt correction on source images in sequence, and finally a BP neural network template is used for character recognition. In the character recognition, according to the structure features of seven sections of digitrons, seven-feature scanning is carried out, and high recognition rate can be achieved through small calculated amount; the character images are subjected to character tilt correction, extracted recognized features are matched with the template, and the accuracy of character recognition is improved; and the recognition method based on a BP neural network with an on-line training function is used, the stability of a recognition algorithm is enhanced, and robustness is improved.

The invention relates to a real-time repetition removal and transmission method for data in a network file system, and belongs to the technical field of computer data storage. The method comprises the following steps of: setting a file metadata table, a data block index table and a file composition table in a client and a server respectively, and setting a to-be-transmitted message queue for storing data and updating message in the client; receiving and responding an operating command initiated to the network file system by a client application program through a file system drive by the client, wherein the operating command comprises the operation of creating a new file, writing data into an existing file, reading the data from the existing file and deleting the existing file; and settinga network service interface for uploading and downloading data block contents and receiving and answering client message in the server. The method can delete the repeated data so as to save the storage space, avoid transmitting the existing data of the opposite side between the client and the server and reduce the overhead of network bandwidth; meanwhile, the method supports a file blocking method of fixed length and unfixed length so as to improve the utilization rate of the storage space.

The invention discloses a communication system and method. The system comprises an AP, N terminals and a data processing module, wherein the AP comprises a wireless receiving and sending module and a visible light receiving module, and the AP provides covering of two communication signals of wireless and visible light for an under-mine terminal through the two modules. According to the communication method, when the terminals receive request information of the AP, service data are sent to the AP by correspondingly adopting the wireless mode or the visible light communication mode or simultaneously adopting the wireless and visible communication modes according to light and electric channel states, subsequently, the AP adds corresponding identification information to the server data, then the service data are reported to the data processing module, and the data processing module performs corresponding service processing on the service data. Thus, when one communication link is disconnected or the signals are weak, the other link is adopted for achieving time transmission of the service data, and the problem that in the existing single-communication mode, due to the fact that the communication link is disconnected, it cannot be ensured that the service data are uploaded in time is solved.

The invention discloses a method and system for completing house property transaction fund supervision based on an intermediate platform. The method for completing house property transaction fund supervision based on the intermediate platform includes the steps of real name authentication, house resource & credit checking, house property transaction & fund supervision, and loan application. According to the method and system for completing house property transaction fund supervision based on the intermediate platform, by establishing communication between the intermediate platform and various terminals and systems involved in the house property transaction process, high-value house payment is completed online, so that the house property transaction efficiency is greatly improved, and meanwhile the data transmission security is guaranteed; besides, a strict authentication process is adopted for important data information, so that the authenticity and validity of information are guaranteed, the transaction authenticity is effectively guaranteed, the credibility of transaction parties is improved, operation is convenient and fast, and it is easier to conclude the transaction.

This invention discloses one method for mobile communication system set business transfer, which comprises the following steps: setting each business time lag and when one user requires for multiple set business, wireless linkage control RLC layer determines each business data priority according to each set of business time lag; media interface control MAC layer selects the user business transmission form combination of TFC according to each logic signal channel priority and each business data priority.

The invention discloses a method for improving service quality of mixed businesses in vehicular networking application. The method includes: constructing a mixed business model under a moving scene; determining a condition Q met by a minimum contention window value of a non-real-time business for ensuring the long-term fairness of the non-real-time business of vehicles; determining a saturated throughput S1 of the non-real-time business and a time delay E (D2) of a real-time business; determining the number x of packets transmitted by all the vehicles in the non-real-time business within a time slot and the number y of packets transmitted in the real-time business within a time slot on basis of S1 and E (D2) as well as business priorities; acquiring the minimum contention window value of the non-real-time business of the vehicles with a vehicle speed Vi and the minimum contention window value of the real-time business of the vehicles based on Q, x and y; and obtaining the vehicle speed and ID of each vehicle in a power coverage range by roadside facilities, broadcasting the ID of each vehicle and the corresponding minimum contention window value to each vehicle, and finding and setting the corresponding minimum contention window value on basis on the ID by each vehicle. The method can improve the service quality of mixed businesses in the vehicular networking application.

The invention provides a VRRP-based master- and backup- router switching method, and its kernel: when a master router in VRRP (virtual router redundancy protocol) backup group determines to need to make master and backup swithcing, it actively sends a state change request message and reserves the message in the VRRP backup group, and after all routers in the VRRP backup group receive the message, they at once start competing the master router. On the premise of fully assuring service stability, the invention increases switching speed of master and backup routers in the VRRP backup group and effectively shortens failure response time.

The invention relates to a gateway device and a data processing method, in particular to a gateway device and a data processing method used in an intelligent building control system. The gateway device is provided with a user communication interface for communicating with a user, a terminal-side communication interface for communicating with a terminal node, a memorizer for storing data related to equipment, and a processor for analyzing and processing data and user commands and controlling data interaction, wherein when receiving the data acquisition commands from the user through the user communication interface, the processor analyzes commands and checks whether the data stored in the memorizer meets specified requirements, if yes, the processor directly sends the data back to the user, otherwise, the processor asks for new data from the terminal node through the terminal-side communication interface and sends the new data acquired from the equipment back to the user.

The invention belongs to the technical field of clean rooms, in particular relates to a clean room with a non-thermal plasmas air disinfection purifier. The clean room comprises an air purification unit, a reactor power, a fan, the clean room, a fresh air system, a controller, an air return trench, an air filter, a static pressure box, a return air pipe and a grating floor. The air purification unit is installed in the static pressure box arranged above the clean room to form an airtight environment; the air purification unit is a plasma reactor, is internally provided with a plurality of nickel-chromium metal wires or metal bands which are arranged in parallel according to equal distance in the same plane to prepare a positive electrode, two ends of the air purification unit are fixed in a corresponding groove or convex part on a conductive rail for preventing micro-discharge, and a switch tube in the reactor power is arranged by a single-end flyback inverter. The invention provides the clean room, which has the advantages of comprehensive air purification and disinfection effect, high efficiency, low energy consumption, low noise, simple structure, maintenance cost saving and long service life and can be applied to an industrial or biological clean room.

The present invention relates to an ant colony algorithm-based mobile Sink node data collecting method. A wireless sensor network performs clustering operation on sensor nodes by using an LEACH protocol so as to obtain cluster head nodes; the cluster head node collects data of member nodes in a cluster; an important degree of the data is marked by using hormone information through an improved ant colony algorithm; adjacent matrixes are calculated according to a hormone concentration of each member node in the cluster and with an Euclidean distance between cluster head nodes as a visibility factor; all cluster head nodes are traversed; an optimal moving path of Sink nodes is searched; and finally, the Sink nodes are moved according to the optimal path. The present invention provides a method for solving problems of funnel effect and energy hole in data collection of the wireless sensor network. The method can ensure that important information is sent in time in the network, and effectively shortens data time delay.

The invention provides a method for ensuring satellite network service quality based on a mobile agent which is used for solving service quality ensuring problem of various QoS operation in the satellite network transmitting from end to end. The method makes the satellite network no needing special resource reservation signaling agreement, but distributing a bandwidth resource needed by QoS route through the agreement of the mobile agent, reacts to linkage switch, linkage invalidation or node invalidation allodially and dynamically by using changes of the mobile agent monitor satellite network, keeping accuracy of the resource reservation information, and satisfying more QoS requirements by using the mobile agent for realizing agreement of the resource reservation. The method can process network resource reservation according with operation QoS requirement before sending the data, provide QoS ensuring from end to end and process cooperation with the resource reservation.

The invention discloses a V2X business transmission method. A logical channel of a MAC (media access control) layer is added. A vehicle business channel VTCH is used for transmitting the V2X businessdata. As a Sidelink logical channel, the VTCH and the Sidelink business channel STCH both map to a Sidelink transmission channel. A Sidelink shared channel SLSCH is provided. As an uplink logical channel, the VTCH maps to the transmission channel. An uplink shared channel ULSCH is provided. The method comprises the steps that a vehicle terminal transmits the V2X business data through the VTCH; thevehicle terminal transmits communication D2D business data between devices through the Sidelink business channel STCH. The invention is advantageous in that with the new logical channel, and with thegiven mapping relationship among the new logical channel, the transmission channel and the physical channel, the transmission of the V2X business can be realized.

The invention discloses a comprehensive security monitoring method and a comprehensive security monitoring system based on a sentry. The comprehensive security monitoring method includes the following implementation steps: 1) setting a sleep pulse critical value, a life weak pulse critical value and a human movement sign critical value; and 2) collecting pulse and human movement signs of sentry security personnel in real time. Security monitoring alarm is achieved according to three factors of the pulse, the human movement signs and manually triggered alarm, a sentry site video is collected through a camera during the triggered alarm, and alarm and the site video collected by the camera are sent to a monitoring center. The comprehensive security monitoring system comprise the monitoring center and at least one sentry unit, the sentry unit comprises a video monitoring unit, a sentry base station and at least one security personnel terminal, the video monitoring unit comprises the camera with a rotary platform, and the security personnel terminal comprises a pulse sensor, an attitude sensor, an alarm button, a terminal controller and a terminal wireless module. The comprehensive security monitoring method and the comprehensive security monitoring system based on the sentry have the advantages of being good in security, high in reliability, accurate in video monitoring and simpleand convenient to use.

The invention discloses a smartphone based power distribution network patrol and fault repair method. The smartphone based power distribution network patrol and fault repair method comprises assigning a fault determination task to smartphones of the operation staff through an emergency command center after the fault is captured through an SCADA (Supervisory Control And Data Acquisition) system and an alarm is given; confirming a fault point by the operation staff, transmitting real-time GPS (Global Positioning System) coordinates to the command center through the smartphones and displaying a fault confirmation motion curve on a GIS (Geographic Information System) map by the maintenance personnel; feeding back the information such as the fault equipment, the fault description, the fault cause, the detailed address and the fault photo to the command center through the smartphones by the operation staff; performing problem analysis and selecting the fault repair scheme through the emergency command center after the fault point is confirmed and sending to a fault repair team along with a fault repair electronic working ticket; achieving the repair work according to the corresponding scheme and the specified working process after the fault repair team receives the electronic working ticket through the smartphones; sending the electronic working ticket to the emergency command center by the fault repair team after the repair work is achieved and executing the fault recovery power transmission operation process after the fault treatment.

The invention discloses an anti-electromagnetic radiation building and belongs to the building field. The outer surface of the side wall of the anti-electromagnetic radiation building is provided with an electromagnetic wave absorbing layer; the electromagnetic wave absorbing layer includes an electric conduction layer and an absorbing wave mortar layer which are distributed from inside to outside, wherein the electric conduction layer is connected with ground through metal. With the anti-electromagnetic radiation building of the invention adopted, electromagnetic waves can be effectively prevented from radiating to an indoor environment.

The invention provides a uplink resource allocation method, including: user terminal reports sum of data to be transmitted in the logical channel buffer with the same highest priority; base station allocates uplink resource based on sum of received data. Meanwhile, the invention also provides a uplink resource allocation system, including: user terminal, for reporting sum of data to be transmitted in the logical channel buffer with the same highest priority; base station, for allocating uplink resource according to sum of received data. Further, the invention also provides a user terminal. The invention makes uplink resource allocated reasonably between each user terminals, and realizes better load balance between each user terminals, improves user's satisfaction.

The invention provides a method for transmitting channel state information (CSI) and feedback (ACK (Acknowledgement) / NAC (Negative Acknowledgement)) information of a hybrid automatic repeat request. The method comprises the following steps of: determining a transmission reliability requirement type of the CSI fed back by a current sub-frame; if the difference between the CSI and the transmission reliability requirement of ACK / NAC information is positioned within a set range, carrying out joint coding on the CSI and the ACK / NAC information; mapping information obtained by joint coding on a discrete Fourier transform-spreading-orthogonal frequency division multiplexing (DFT-S-OFDM) channel for transmitting; and otherwise, processing the CSI and the ACK / NAC information by adopting a mode except a joint coding mode and mapping the processed control information to the DFT-S-OFDM channel for transmitting. According to the method disclosed by the invention, the transmission power of UE (User Equipment) can be reduced and the interference between the UE is reduced.

The invention provides an emergency material management system based on the internet of things technology, and discloses an internet of things device and management system used for emergency material management. According to the emergency material management system based on the internet of things technology, the internet of things technology is combined with emergency material management, and the internet of things device, management system and method suitable for emergency material management and achieving self-adaptation control are established on the basis of existing emergency material management. According to the system and method, intelligent management for an emergency material storehouse is achieved, labor cost and the risk of insufficient emergency material supplying are reduced, the stock number can be timely updated when emergency materials are delivered from a storage, management staff can timely supplement shortage materials, accuracy and timeliness of storehouse stocktake are strengthened, and response capacity of enterprises for emergency events is improved.

The invention discloses a method and a system for finishing house property transaction and fund supervision based on an intermediate platform. The method for finishing the house property transaction fund supervision based on the intermediate platform comprises a real name authentication process, a house source and credit check process, a house property transaction and fund supervision process and a loan application process. According to the method and the system, the intermediate platform is in communication connection with terminals and systems involved in the house property transaction process to finish large house payment online, so that the house property transaction efficiency is greatly improved and the data transmission security is ensured; and the strict authentication process is adopted for important data information, so that the authenticity and validity of the information are ensured, the authenticity of transaction is effectively guaranteed, the credibility of a transaction party is enhanced, the operation is convenient, and the transaction is facilitated more easily.

The invention discloses a V2X transmission candidate resource determination method and device, a storage medium and user equipment. The V2X transmission candidate resource determination method comprises the steps of determining a to-be-sent data packet from a high level; determining an unmonitored sub-frame of the current user equipment in the sensing window or the contention window; receiving anSCI-R from first user equipment in a short sensing window or a contention window in the sensing window, wherein the SCI-R comprises SCI-R information sent by other user equipment and sensed by the first user equipment; and determining occupied resources at least according to the SCI-R information and the positions of the unmonitored subframes, excluding the occupied resources from the resource selection window, and remaining resources in the resource selection window are candidate resources of the to-be-sent data packet. According to the technical scheme, data transmission resource collision caused by a half-duplex problem in an NR V2X scene can be avoided.

The invention discloses a high speed railway tunnel convergence automatic detection device and detection method. The device comprises a laser target, a power supply module, a cabinet, a laser sensor, a tilt angle sensor, a communication module and a server. The cabinet is fixed to the inner wall of a tunnel. The laser target is fixed to the inner wall of the tunnel. The laser sensor is fixed in the cabinet and is fixedly connected to the tilt angle sensor. The laser sensor, the tilt angle sensor, and the communication module are connected to the power supply module. Both the laser sensor and the tilt angle sensor are connected to the communication module which communicates with the server. The communication module sends the distance measured by the laser sensor and the deflection angle measured by the tilt angle sensor to the server. The server obtains a tunnel convergence value according to the distance and the deflection angle. According to the high speed railway tunnel convergence automatic detection device, the real-time rapid long-term monitoring of high speed railway tunnel displacement and convergence is realized.

The invention discloses a data transmission method, a terminal and a computer storage medium, wherein the method comprises the following steps: determining three-dimensional video data to be transmitted; comparing a network resource allocated to itself with a network resource required for the determined three-dimensional video data, to obtain a comparison result; when the comparison result indicates that the network resource allocated to itself does not support the transmission of the determined three-dimensional video data, applying to a network side for a network resource matching the determined three-dimensional video data; and using the applied network resource that matches the determined three-dimensional video data to transmit the determined three-dimensional video data.

The invention provides a feedback information transmission method and system, UE and a base station. The feedback information transmission method can comprise the steps that the UE generates feedback information of a target subframe; and the UE transmits the feedback information in a subframe next to the target subframe. Transmission of the feedback information in the embodiment of the invention can be applicable to short TTIs (Transmission Time Intervals) or variable-length TTIs.

The invention discloses a user equipment data scheduling method, which comprises the following steps: packet scheduler detects whether has reached the scheduling period; if yes, sorting the user equipments UE into different priority sets according to predetermined principles; and selecting a set including the user equipment needing to transmit data in the different priority sets according to priority descending order, and scheduling the data transmission of the user equipment in the selected set. In addition, The invention further discloses a packet scheduler. The technical scheme in the invention, can give higher priority to the users at cell edge, in cell shadow area or performing cell switching; thereby, guarantees the data of the user equipments can be transmitted in time, reduces the data loss caused by RLC layer SDU time-out or cell switching, and improves the transmission speed of the user equipments at cell edge, in cell shadow area or performing cell switching.

The invention relates to a safe delivery system applied to downhole coal bed gas (gas) in coal mining. A monitoring device, an automatic powder spraying and explosion suppression device and a fire retarding device are sequentially arranged on a delivery pipeline along the coal bed gas delivery direction, the automatic powder spraying and explosion suppression device is connected with a controller, and output ends of the monitoring device and the controller are connected with a monitoring system on the ground through information data buses and communication interfaces respectively. By the safe delivery system, information like methane, carbon oxide, temperature and flow in the delivery pipeline is monitored at any time; once the circumstance of limit exceeding is found, an alarm is given timely, and the circumstance is transmitted to a control center on the ground and even a national safety monitoring center. Once a fire disaster occurs, the disaster is controlled within a certain range under action of the fire retarding device and the automatic powder spraying and explosion suppression device.