474results about How to "Solve communication problems" patented technology

The invention provides a terminal D2D communication method and a terminal D2D communication system. The terminal D2D communication method includes the steps that each base station distributes a plurality of time-frequency resource combinations used for terminal D2D communication for a D2D terminal which is served by the base station, so that a resource pool is formed; different base stations distribute the same resource pool for the D2D terminals which are served by different base stations for D2D transmission so as to ensure that the D2D terminals which are served by different base stations can be in D2D communication. According to the technical scheme, the problem that adjacent cell edge terminals cannot be in communication due to different communication resources can be solved.

The invention discloses an outdoor blind guiding robot based on a global position system (GPS), general packet radio service (GPRS) and a radio frequency identification devices (RFID) and a navigational positioning method. The outdoor blind guiding robot comprises an outdoor blind guiding robot body and a remote service platform, wherein the outdoor blind guiding robot body comprises a vehicle body and a navigation handle, and the vehicle body is sequentially divided into four layers from bottom to top. The navigational positioning method includes that the GPS and an RFID module are adopted to position blind persons and broadcast position navigation information through voices; a GPRS module is adopted to achieve two-way transmission of data between the blind guiding robot and family members or the remote service platform, and the blind persons are monitored and are remotely guided to advance; when the blind persons have accidents, voice help calling can be performed by the GPRS module to the remote service platform; and the image recognition technology is adopted to recognize manual navigation road signs and friendly tracks on the roads so as to ensure accuracy and safety of routes. The outdoor blind guiding robot and the navigational positioning method solve the outdoor traveling problem of the blind persons.

The invention discloses a resource distribution method. The method comprises the following steps that a first user equipment (UE) receives scheduling authorization indication information issued by a base station, wherein a resource indicated by the scheduling authorization indication information is a sending resource which is configured for the first UE by the base station for N second UE, or the resource indicated by the scheduling authorization indication information is a sending resource of the N second UE, and the sending resource is indicated by the first UE; and the first UE carries out resource distribution for the second UE on the basis of the received scheduling authorization indication information, or the first UE indicates the resource of the second UE to the second UE on the basis of the received scheduling authorization indication information, wherein the N is an integer which is greater than or equal to 1; the resource at least includes a PSCCH resource and a PSSCH resource, a PSCCH is a physical control channel of a Sidelink link and a PSSCH is a physical sharing channel of the Sidelink link, and the Sidelink link is a link established between the UE of device-to-device D2D communication. The invention also discloses a resource distribution apparatus.

The invention discloses a device-to-device (D2D) communication method, device and system. A second device sends a dispatching request for D2D communication to a first device, and D2D communication data transmission is carried out based on the dispatching of the second device; the first device responds to the dispatching request and sends control information to dispatch the second device to carry out D2D communication data transmission; a third device detects the control information sent by the first device and receives the D2D communication data sent by the second device based on the control information. By means of the device-to-device communication method, device and system, the communication problem among the devices is solved, and compatibility of device-to-device communication and cellular communication are guaranteed; in addition, the device-to-device communication method, device and system can be suitable for device-to-device communication with a unicasting or broadcasting or multicasting mode or other broadcasting modes.

The invention discloses a self-networking method for wireless routing Internet of things, which comprises the following steps of: automatically networking, path repairing and problematic routing node reporting, and frequency hopping anti-interference, wherein the step of automatically networking is divided into two processes of network center coordination point networking and accessing network by routing nodes. The self-networking method for the wireless routing Internet of things solves the problems that the conventional point-to-point transmission only can form a starlike structure, the transmission range is limited to the effective communication range of the module and the distance is limited, and solves the problems that a route cannot be updated timely, obvious defects of the communication effect are present in the stability and reliability, and the installation and maintenance are inconvenient in the routing method of manually specifying the route under the condition that the wireless signal is deteriorated or the node is damaged.

The invention discloses an appliance network system capable of achieving equipment identification. The appliance network system is characterized in that a home gateway has an RFID unit; the RFID unit can read the information in an RFID tag within a certain distance and transmit the information to a central processing unit of the home gateway; a home appliance in the system includes the RFID tag including the ID number of the home appliance, wherein the ID number represents the manufacturer, the product type and the product number information of the home appliance; and the RFID unit of the home gateway reads the ID number of the home appliance in the RFID tag when the home appliance is in the read range of the RFID unit, and achieves communication with the accessed or record-lost home appliance according to the ID number. Compared with the prior art, the appliance network system can achieve communication between the gateway and the home appliance by using RFID technique, and can ensure successful first communication between the gateway and the home appliance.

The invention relates to a mobile social network implementation system and method based on vehicle communication. The mobile social network implementation system comprises an intelligent mobile terminal, a social network application service platform based on vehicle communication and a mobile cellular network or a WiFi communication network supporting mobile data communication. The social network implementation method comprises the first step that a license plate number is registered, the second step that a mobile phone number and the license plate number are bound, the third step that a user logs into and uses the social network application service platform and the fourth step that the user logs out of the social network application service platform. The mobile social network implementation system and method based on vehicle communication have the advantages that the popularizing rate of the intelligent mobile terminal increases year by year, and the intelligent mobile terminal is carried with the user and can be used as a vehicle-mounted mobile terminal; since mobile internet is achieved through the mobile cellular network and the like, communication between vehicles can be achieved efficiently at low cost, information communication between vehicle divers is realized, and popularization and convenience of the internet of the vehicles are promoted.

The present invention discloses a method for establishing a secure communication link in a multi-UAV environment and mainly solves the problems that the link state is unstable and data is easily captured, deleted and even tampered by a third party due to frequent changes for a network topology in the existing Unmanned Aerial Vehicle (UAV) communication technology. The technical scheme of the present invention is as follows: satellites and Airborne Early Warning Aircrafts (AEW) are efficiently utilized to manage UAV nodes in terms of data transmission requirements for the UAV; a reliable link look-up and establishing method for the UAV communication is designed; a reliable interaction protocol is used when establishing the communication link so as to avoid the false communication requests and responses and prevent the link information from being tampered by malicious nodes; and data is encrypted with a private key allocated by a ground station so as to ensure the safety of messages and improve the stability and security for the UAV communication; meanwhile, the survivability of the system is enhanced by providing effective solutions for the condition of damaged link. The method provided by the invention can be used for establishing a secure communication link in a multi-UAV environment.

The invention discloses a multi-beam ad hoc network channel access control method, aiming at providing an access control method which has a high channel utilization rate and can improve the network performance. The method of the invention is implemented through the following technical scheme: for a distributed multi-beam scene, combining the characteristics of multi-beams, utilizing the broadcastchannel characteristics of an omni-directional network and the high bandwidth and high directivity characteristics of a directional network, using the short message protocol interaction between nodes,and assisting to complete the high-rate parallel transmission of multiple nodes on a directional link; using space division multiplexing among the nodes to achieve the concurrent communication between multiple transmission nodes and multiple receiving nodes; when a network cluster head node receives RTS frames of all other nodes, running a multi-beam ad hoc network channel access allocation algorithm; and searching an optimal transceiving node pair set in each time slot, finding an edge set with the maximum network capacity as a channel access allocation result of each node in the next directional link time slot, and further implementing the simultaneous multi-transmission and multi-reception of the multiple nodes at the same frequency.

The invention discloses a web page cross-domain communication method and device. The method includes the steps that a first page with a first root domain name loads a second webpage with a second root domain name in the first page in an embedding mode; the second page adds target data from the second root domain name into a preset third page and skips to the third page, and the root domain name of the third page is the first root domain name; the third page extracts the contained target data from the second root domain name and stores the target data in storage space which the pages with the first root domain name can have access to; the first page reads the target data from the second root domain name from the storage space. The communication between the cross-domain web pages in a browser is achieved, cross-domain file transmission, data sharing and data synchronization can be achieved, meanwhile, the development cost is lowered, and the problem that different root domain names are mutually embedded is solved.

The invention discloses a target tracking method based on edge computing, which mainly shoots a target through an unmanned aerial vehicle, assists in shooting the target through a ground camera network when the unmanned aerial vehicle cannot work, and an edge node computing cluster formed by ground terminal equipment is responsible for processing and analyzing video data streams. When the unmannedaerial vehicle cannot normally track, the ground camera network and the edge nodes are selectively requested to be combined to participate in a tracking task, so that the robustness of unmanned aerial vehicle tracking can be improved, and even if a final target is completely lost, the target can be efficiently found again to continue tracking due to near field communication between the edge nodesand the ground camera network; the container technology is used for isolating platform differences, so that the problem of incompatibility of video analysis and processing applications on different platforms can be solved; the ground-air cooperative mode is reasonably selected according to the current tracked state of the target, so that the energy consumption of the whole network can be reduced,and the response time of the network can be prolonged.

The invention discloses a multi-stage perforation supercharging method. In the technological processes, a supercharging device is connected with the tail of a perforation gun of the upper level, after the perforation gun of the upper level is detonated, the perforation gun transmits detonation waves to the supercharging device, a baffle igniter of the supercharging device is detonated to ignite a supercharging gun powder mechanism, the supercharging gun powder mechanism generates high-pressure gas to push a supercharging piston to move to shear a shear pin of the supercharging device, and to push the piston to extrude a liquid inside an interlayer oil pipe so as to increase the pressure inside the interlayer oil pipe, and the shear pin of the lower-level detonation device is shorn off to detonate a pressure detonation device and a perforation gun of the lower level so as to complete the perforation operation of the lower level. The method can ensure the stability and the controllability of pressure generated due to the combustion of supercharging gun powder in a supercharging cavity, the pressure is then acted on the supercharging piston to ensure that the supercharging piston moves stably, the method can also realize high-precision shearing, can be used in a pressure type multi-stage perforation process, and is suitable for various well conditions.

The invention discloses a high-voltage capacitor bank branch current monitoring device, comprising a self-excitation energy obtaining and power converting circuit, a current detection and acquisition circuit, a CPU data acquisition and controlling circuit and a wireless transceiving circuit, the self-excitation energy obtaining and power converting circuit obtains energy from the high-voltage line and converts and outputs direct voltage; and the current detection and acquisition circuit collects current instantaneous value, and outputs to the CPU data acquisition and controlling device, which is used for finishing branch unbalanced current AD alternating current sampling, current harmonic calculation and finishing bidirectional wireless digital transmission via the wireless transceiving circuit. The monitoring device solves the problem of monitoring protection of a capacitor bank under high potential, discloses the damage mechanism of the capacitor bank by taking the branch unbalanced current and harmonic distribution in the fault process of the capacitor bank as the analysis basis, thus reducing fault rate of the capacitor bank and having significant meanings in improving power grid safe operation level and economic efficiency.

A method for exchanging satellite-carried route of sky based network includes judging whether source user and destination user of data are in the same wave beam or not and carrying out data link layer exchange on data if it is or otherwise judging whether multi-protocol countermark is carried by data or not according to data packet formed frame sequence number data in connection head, carrying out multi-protocol countermark exchange on data if it is or otherwise carrying out IP route exchange on data.

The invention provides a method for recording the chip use state information, an imaging box chip and an imaging box. The imaging box chip comprises a base plate, an information memory unit and a control unit, wherein the information memory unit and the control unit are arranged on the base plate, and the information memory unit comprises a prior write-in region and an ordinary read-white region. The method for recording the use state information comprises the following steps that when the chip receives read/write operation commands sent by an imaging device or a control unit arranged on the chip monitors communication interference signals, the control unit arranged on the chip updates the chip use state parameter values stored in the prior write-in region, and the chip use state parameter values are used for carrying out fault analysis on the chip. The imaging box comprises the imaging box chip. The recorded chip use state parameter values can reflect the use state information of the chip per se, and powerful data is provided for discovering and solving the communication problem between the chip and the imaging device.

The invention provides an unmanned aerial vehicle emergency rescue high-altitude base station comprising a bearing platform, a wireless communication system and a backhaul device, wherein the bearing platform is an unmanned aerial vehicle, the wireless communication system and the backhaul device are connected with each other and are loaded on the mooring unmanned aerial vehicle, the wireless communication system comprises a RRU module communication device and an antenna, the RRU module communication device is in wireless connection with a user through the antenna, the backhaul device comprises a BBU module communication device and a backhaul system, The RRU module communication device establishes a data transmission connection with the BBU module communication device, and the BBU module communication device is in data transmission connection with a machine room PTN through the backhaul system. The unmanned aerial vehicle emergency rescue high-altitude base station has the advantages of low cost, simple operation, large bearing capacity, long air residence time and high environmental adaptability. The unmanned aerial vehicle emergency rescue high-altitude base station can quickly rise in hash environments, quickly start a communication station and can perform remote operation. The unmanned aerial vehicle emergency rescue high-altitude base station serves as an emergency communication station to meet different emergency relief scenarios, such as emergency relief, security anti-terrorism, hot spot coverage and other communication needs.

The invention discloses a relay-assisted environmental backscatter communication method. A relay assists a radio frequency transmitter and a backscatter communication device to communicate with respective target receivers at the same time. The backscatter communication device modulates the own information to the signal of the radio frequency transmitter, the relay decodes the information by adopting a serial interference elimination mode, forwards decoded information to respective information receivers in a non-orthogonal multiple access manner, and optimizes the performance of environment backscatter communication by optimizing the reflection coefficient of the environment backscatter communication device and a power distribution factor of the relay on the premise of ensuring the communication quality of the radio frequency communication link. Compared with a traditional decoding forwarding relay communication system, the relay-assisted environment backscatter communication method provided by the invention can obviously improve the communication performance of the system.

The invention discloses method of communication between sites in Virtual Private Network (VPN) across border gateway protocol (BGP) of mixing network in Internet protocol version 4 (IPv4)/ IPv6 of multiple autonomous system (AS)/ multiple protocol label switch (MPLS). The method includes steps: label switch path (LSP) is built between periphery equipment (PE) of service provider at exit of source VPN site and PE at entry of destination VPN site; based on obtained path information of destination VPN site, source VPN site sends VPN traffic flow to destination VPN site so as to realize communication. The invention implements communication between VPN sites when VPN sites are in IPv4/IPv6 mixing network, and backbone network of VPN is BGP/MPLS. Through improving current equipment simply, the invention can provide BGP/MPLS VPN value added service in period of transition from IPv4 to IPv6.

The invention discloses a method, system and apparatus for realizing communication between nodes and belongs to the computer technical field. The method is applied to a system providing Internet services. The methods includes the following steps that: an inner network node transmits a connection establishment request to a proxy node through an NAT gateway; the proxy node establishes a first communication connection with the inner network node according to the connection establishment request; a public network node transmits a first information message to the proxy node through a second communication connection established between the public network node and the proxy node; and when a first target node corresponding to the first information message belongs to the inner network node, the proxy node forwards the first information message to the first target node through a first communication connection established between the proxy node and the first target node. According to the method, system and apparatus of the invention, a characteristic that the NAT gateway does not limits the inner network node to initiatively initiates a connection is utilized to realize the proxy node, and the proxy node forwards an information message which is transmitted to the inner network node by the public network node, and communication between the public network node and the inner network node can be realized.

The invention discloses a multi-stage perforating pressurizing device. The device comprises a power shell and a pressurizing shell positioned on the lower part of the power shell, wherein a power cavity is formed in the power shell; a pressurizing cavity is formed in the pressurizing shell; the power cavity is communicated with the pressurizing cavity; a diaphragm igniter and a pressurizing gunpowder mechanism positioned on the lower part of the diaphragm igniter are arranged in the power cavity; a pressurizing piston driven by power generated by the power cavity is arranged in the pressurizing cavity and is connected with a piston through a push rod; and the piston is fixed on an intermediate joint through a shear pin. The stability and controllability of pressure generated by the combustion of gunpowder in the pressurizing cavity can be ensured; the pressure is applied to the pressurizing piston, so that the pressurizing piston moves stably; pressure increment is generated in an interlayer oil pipe, so that a next stage pressure initiation device and a next stage perforating gun are reliably detonated; and the multi-stage perforating pressurizing device is used for the pressure multi-stage perforating process, is suitable for various well conditions, and particularly can meet the requirements of a high-inclination well and a horizontal well on multi-section, large-distance and negative pressure perforating.

The invention relates to a secure communication method for a distributed multi-granularity controller of a software defined network based on proxy, and belongs to the technical field of inter-domain secure communication of a multi-domain SDN. The method comprises the following steps: designing architecture of a distributed multi-granularity security controller, wherein the architecture comprises a message data packet format between controllers, establishing a communication tunnel via the connection between a controller domain and inter-domain proxies and the connection between the inter-domain proxies, and completing neighbor discovery between the controller, two-step identity authentication and encrypted transmission to achieve direct communication between multi-domain network controllers. In the communication method, the infrastructure is based on the security controller and the inter-domain proxies, a message of a control plane is released to a data plane by the inter-domain proxies for transmission, and thus the communication problem between independent control planes is solved; and meanwhile, the two-step authentication scheme of communication of the controller is given based on a challenge response mechanism and a DTLS protocol, service supply can be defended and refused, and the identity authentication is completed to improve the security.