38results about How to "Realize peer-to-peer communication" patented technology

The invention provides a family cloud system, comprising a family cloud device, a display apparatus used for connecting the family cloud device, a server for providing cloud services, and an intelligent terminal device used for manipulating the family cloud device and sharing resources, wherein the family cloud system comprises an operating system module, a family cloud application module, a cloud service module and a mobile terminal, the family cloud system comprises B/S architecture and C/S architecture, the modules of the family cloud system communicate via a plurality of protocols, the mobile terminal module and the family cloud device can freely switch between Wi-Fi direct connection communication and point-to-point communication, and compared with the prior art, the family cloud system in the technical scheme provided by the invention manages the user registration and login services of all family clouds, realizes family cloud device download and App download services, realizes the point-to-point communication of the mobile terminal and the family cloud device, and can store, manage and share pictures and videos.

The present invention provides a communication method used for establishing connection in first and second user side, wherein first user side through asymmetric form NAT connected with server, and second user side through symmetry type NAT connected with server. Said method includes 1, when first user side requesting establishing connection with second user side, second user side through symmetry type NAT transmitting data package to different port of server, updating server port jump list; 2, when jump rule in port jump list being rule jump, second user side according to said jump rule boring to establish connection between first and second user side.

The invention discloses a narrowband data communication system and a wireless narrowband data communication method. A narrowband data communication terminal network system comprises at least two terminal branches, wherein each terminal branch is in wireless connection with other terminal branches in the terminal network system and used for receiving control instruction information sent by other terminal branches and executing corresponding control instructions according to the control instruction information or sending the control instruction information to other terminal branches, so that point-to-point communication among the terminal branches is realized; and high-reliability bidirectional wireless communication technology is easy to use, has close distance, low speed, low power consumption and cheap market positioning, supports a transmission control protocol/Internet protocol (TCP/IP) and an embedded device, and is suitable for a large-scale network. The wireless narrowband communication technology of the invention can support the application of the Internet of things and a wireless home network in China at present and has infinite development potential.

The invention provides a wireless communication method based on visible light colors. The wireless communication method comprises the following steps: 1) dividing a byte to be sent into three parts according to a bit number to respectively correspond to three color channels of red, green and blue; 2) encoding the bit data of the corresponding three color channels to corresponding intensity data; 3) calculating the brightness and color of emergent light according to the intensity values of the three color channels, and driving a luminescent device to emit light; 4) after receiving the visible light emitted by the luminescent device, dividing three colors of red, green and blue through an optical filter, receiving the light through intensity measurement devices of the three color channels respectively, and quantifying the light into respective intensity data values; 5) restoring the intensity data of each color channel into the bit data represented per se through a data decoding unit; and 6) synthesizing the decoded bit data into a byte. The communication method provided by the invention has the advantages of overcoming the mutual interference in multi-device communication, being capable of achieving point-to-point communication under a wireless condition, and improving the confidentiality of communication.

The application discloses a HART(Highway Addressable Remote Transducer) multichannel switching circuit, including a power voltage stabilizing circuit, a microprocessor, a HART signal modulation and demodulation circuit, N HART communication circuits and a multichannel switching control circuit, wherein N is an integer greater than 1. The power voltage stabilizing circuit is configured to provide the stable level for the microprocessor. The microprocessor is configured to send a polling acquisition command and other HART commands received by control chamber equipment and to return received HART equipment response information to the control chamber equipment. The HART signal modulation and demodulation circuit is configured to modulate data sent by the microprocessor and to demodulate data sent by the HART communication circuits. The HART communication circuits are configured to transmit data sent by the HART signal modulation and demodulation circuit to corresponding HART equipment and to return HART equipment response data to the HART signal modulation and demodulation circuit. The multichannel switching control circuit is configured to select one path of HART equipment for communication and to achieve point-to-point conversation with the control chamber equipment. The invention also provides a method adopting the abovementioned circuit.

The invention relates to a wireless communication device with multiple interfaces. A two-core +5V power binding post J1, a nine-core RS232 serial-port terminal DB1, a two-core RS485 interface terminal J2, a standard USB interface terminal J3 and a four-core CAN bus interface terminal J4 are arranged in a machine shell of the wireless communication device. Corresponding holes or corresponding installation holes are formed in the side face of the machine shell, wherein the two-core +5V power binding post J1, the nine-core RS232 serial-port terminal DB1, the two-core RS485 interface terminal J2, the standard USB interface terminal J3 and the four-core CAN bus interface terminal J4 extend out of the holes or installation holes. Holes where a three-digit horizontally-shifting dip switch is exposed are formed in the machine shell. Holes where light-emitting diodes RUN, TXD and RXD are exposed are formed in the machine shell. A round hole where an antenna extends out is formed in the other side face. A wireless transmitting and receiving circuit, a power source circuit, an information storage circuit, a work state indication circuit, a device addressing circuit, an RS232 interface circuit, an RS485 interface circuit, a USB interface circuit and a CAN bus interface circuit are arranged in the machine shell. The wireless communication device with the multiple interfaces is compact in structure, capable of effectively avoiding self-transmitting and self-receiving and achieving point-to-point communication and point-to-multiple-point communication between a computer and the device, multiple in selectable interface, capable of meeting more use requirements, convenient to install and use, and reliable in communication.

The embodiment of the invention discloses a video processor. The video processor comprises video input processing devices, video output processing devices and a backboard device connected with the video input processing devices and the video output processing devices, wherein each video input processing device is provided with a first picture quality adjusting module which is used for adjusting picture color parameters of a to-be-output signal source of the video input processing device, and each video output processing device is provided with a second picture quality adjusting module which isused for adjusting picture color parameters of a to-be-output signal source of the video output processing device.

The invention discloses a broadband communication system of a 10 kV distribution network. The broadband communication system comprises a first inductive coupling unit, a second inductive coupling unit, a first CAN (controller area network) bus unit and a second CAN bus unit, wherein the first CAN bus unit is connected with the first inductive coupling unit; the second CAN bus unit is connected with the second inductive coupling unit; and the first inductive coupling unit is connected with the second inductive coupling unit through a 10 kV medium-voltage power line. Compared with a traditional narrow-band carrier communication technology, the communication speed of an application layer can reach 1M, so that the application capacity is greatly improved, and the foundation is provided for an intelligent distributed FA (feeder automation) mode; and further, peer-to-peer communication is realized during the broadband carrier communication, and the reliability and the communication efficiency are improved remarkably.

The embodiment of the invention provides an inter-chip communication method, device and system and a storage medium, and the method is used for a first chip, and comprises the steps: determining first transmission data to be transmitted to a second chip; writing the first transmission data into a first ring buffer area; updating write pointer information of the first management storage space; and sending first notification information to the second chip, the first notification information being used for indicating the second chip to read the first transmission data from the first ring buffer, and updating read pointer information of the first management storage space based on a read operation of the first transmission data. Through the inter-chip communication method provided by the embodiment of the invention, the occupation of a storage space can be reduced, and the data transmission efficiency is improved.

The invention provides a data communication method, and the method comprises the steps that a main application receives a communication request sent by a first sub-application, and the communication request carries an application identifier of a second sub-application to be communicated; determining a corresponding target callback parameter in a global state database based on the application identifier; and triggering the corresponding second sub-application based on the target callback parameter so as to enable the second sub-application to execute callback. Meanwhile, the invention further provides electronic equipment.

The embodiment of the invention discloses a V2X-based distributed monitoring method, device and system and a storage medium. The method comprises the steps that first terminal equipment builds a forwarding path between the first terminal equipment and second terminal equipment, and the first terminal equipment cannot directly communicate with a monitoring background; the first terminal device forwards the monitoring data to the second terminal device according to the forwarding path, the second terminal device can directly communicate with the monitoring background, and then the second terminal device sends the monitoring data to the monitoring background. According to the embodiment of the invention, when the first terminal device is far away from the monitoring platform and cannot directly communicate with the monitoring platform, the first terminal device forwards the monitoring data to the monitoring platform by establishing the forwarding path between the first terminal device and the second terminal device, and thus point-to-point communication between the first terminal device and the remote monitoring platform is realized.

The invention relates to a wireless lead device of a wireless sensor network architecture. The wireless lead device of the wireless sensor network architecture comprises a lead and probe front end and a lead instrument end, the lead and probe front end is wirelessly connected with the lead instrument end to realize point-to-point communication and networking communication, so that a common monitor can be conveniently accessed to a monitoring network and the Internet, and the functions of movable monitoring, on-site monitoring, upper computer monitoring and the like are realized; the system has the characteristics of ad hoc network, multiple network nodes, low complexity, low power consumption and no maintenance.

The invention discloses a distributed semi-physical simulation system based on NS3, which is applied to the field of network simulation and aims to solve the problem that distributed simulation and node communication with a real network cannot be realized by the existing NS3 simulation. According to the invention, simulation nodes are dispersed in a distributed host to operate, and when communication between the simulation nodes is on one host, normal processing is carried out according to a used network protocol; when communication between the simulation nodes needs to be carried out on different hosts, a distributed coordinator is used for carrying out, and it is guaranteed that a network protocol can work normally; when communication occurs on the simulation nodes and the physical nodes, data needing to be sent are directly sent to a network card of the physical host through a semi-physical interface installed on the simulation nodes; therefore, the communication is carried out on the simulation nodes and the physical nodes through a real network card of the physical host and the physical nodes.