36results about How to "Reliable forwarding" patented technology

An improved system and method for providing context information of executable code to an input method is provided. Advanced text input methods may be made aware of the type of text expected to be received as input so that input methods may achieve a higher accuracy in recognition of text input. Generic interfaces provide a framework for supporting application authoring platforms to allow application developers to easily specify context information to the system and have it reliably forwarded to the correct input methods. Additionally, a context tagging tool may associate specific text input fields of an existing application with an input scope without modifying the application itself. The context tagging tool may create a manifest that contains tags associating the specific text input fields with an input scope. Any advanced input methods use by the application may be updated with instructions for accessing the context information stored in the manifest.

The invention discloses a method for forwarding a packet message, which comprises the following steps: forwarding the packet message to a corresponding transmission channel according to the message type or the message type and the message type/service type after the packet message is received. The invention further discloses a system and a device for forwarding a packet message. The invention can realize more rapid, better and more reliable forwarding of the important messages with high priority, particularly in case of inadequate resources, network congestion and the like.

The method includes following steps: the requirement response message is transmitted to all routes in the route table of route equipment, the route receiving the response message is determined; when the router equipment needs to retransmit message, the message will be retransmitted by route receiving the response message in the route table. The invention optimizes the route table according to the next jump network equipment.

An improved system and method for providing context information of executable code to an input method is provided. Advanced text input methods may be made aware of the type of text expected to be received as input so that input methods may achieve a higher accuracy in recognition of text input. Generic interfaces provide a framework for supporting application authoring platforms to allow application developers to easily specify context information to the system and have it reliably forwarded to the correct input methods. Additionally, a context tagging tool may associate specific text input fields of an existing application with an input scope without modifying the application itself. The context tagging tool may create a manifest that contains tags associating the specific text input fields with an input scope. Any advanced input methods use by the application may be updated with instructions for accessing the context information stored in the manifest.

The invention discloses a vehicle networking hybrid route forwarding strategy based on named data network. In a vehicle networking environment, with multiple message types, including security messages, entertainment news, the public service message and the auxiliary driving message, taking into account geographic location information, the impact of message classification and the need for real-timemessaging on message delivery, messages are categorized into location-dependent and location-independent, each type of message contains an emergency message and a normal message, and different forwarding strategies are adopted to carry out adaptive forwarding, so as to realize fast and reliable forwarding of messages in vehicle networking environment, reduce transmission delay, reduce packet lossrate, thus providing technical guarantee for fast and reliable message forwarding in vehicle networking, and improve the forwarding efficiency of messages.

The invention provides a special networking communication system and method, and relates to the technical field of communication. The system comprises a source base station and a next base station connected with the source base station in a communication manner, a wireless forwarding station of the source base station is used for receiving to-be-forwarded data transmitted by a source paging deviceand transmitting the to-be-forwarded data to a wireless link machine of the source base station, the wireless link machine of the source base station is used for obtaining a first preset time slot for forwarding through the wireless link machine when receiving the to-be-forwarded data so that the to-be-forwarded data is transmitted to the next base station in the first preset time slot, a wireless link machine of the next base station is used for obtaining a second preset time slot for forwarding through the wireless link machine when receiving the to-be-forwarded data in the first preset time slot so that the to-be-forwarded data is forwarded through the wireless link machine in the second preset time slot. Through the above setting, the to-be-forwarded data can be effectively and reliably forwarded during communication.

The invention discloses a method for monitoring communication faults of a CAN bus node by a vehicle-mounted gateway and gateway equipment, and belongs to the technical field of vehicle-mounted communication. The method is implemented by the following steps: a message is selected from messages sent by ECUs in each network segment as a key message, wherein the key message is a periodic message or a periodic event message, and the selected message period is smaller than a preset period value; according to whether the key messages of the ECUs can be received, whether node loss occurs in the ECUs is determined; and a signal value in a communication fault message is set, and whether a source node is lost or not is judged by a target network segment node according to the signal value in the communication fault message, wherein the signal value in the communication fault message is used for identifying whether a certain ECU has node loss or not. According to the invention, the receiving node of the target network segment can judge whether the message/signal of the source node is valid.

The embodiment of the invention provides a flow field measurement device and a flow field measurement system, and the device comprises an acquisition module which is used for sensing to-be-collected information in a flow field, and converting the sensed to-be-collected information into an electric signal; and a wireless transmitting module which comprises a wireless data transmitting module, a single chip microcomputer and an antenna system, wherein the wireless data transmitting module is connected with the acquisition module to obtain an electric signal and transmit the electric signal to the antenna system, the single-chip microcomputer is connected with the antenna system so as to control the antenna system to establish point-to-point data transmission connection with the target device, and the antenna system sends an electrical signal to the target device. Therefore, wireless transmission from the acquisition module to the target equipment is realized, a line between the flow field measurement device and the target equipment does not need to be arranged, the wiring difficulty is reduced, and meanwhile, a point-to-point transmission mode is established between the flow field measurement device and the target equipment, so when a transmission fault occurs, the fault communication link can be conveniently positioned by inquiring the fault information, so the maintenance cost is reduced.

A data transmission method is provided. The method includes: establishing, by a first NAT-T sub-module of a TCP server proxy module, a transmission channel with a second NAT-T sub-module of a TCP client proxy module via a NAT-T signal server; and transmitting, by a client, a data packet to a server module in the transmission channel via the TCP server proxy module and the TCP client proxy module; wherein when a first reliable transmission sub-module of the TCP server proxy module and a second reliable transmission sub-module of the TCP client proxy module receive the data packet, the first reliable transmission sub-module and the second reliable transmission sub-module detect the transmission channel and the data packet, and suitably control the transmission channel and the data packet according to a detection result so that the data packet is reliably forwarded between the client module and the server module.

The invention discloses a physical address table management interaction method of an airborne soft and hard stacked switch, which is applied to soft and hard stacked switch equipment included in an airborne local area network, and comprises the following steps of: starting the soft and hard stacked switch, creating a plurality of soft network bridge ports for the soft switch, creating a pluralityof hard network bridge ports for the hard switch, and emptying a corresponding physical address table; generating a physical address table of equipment corresponding to the port at each port; configuring a physical address table generated by the soft network bridge port to an uplink port of the soft switch; enabling the downlink port of the soft switch to generate a physical address table of equipment corresponding to the hard network bridge port; completing forwarding among all the soft network bridge ports by software, and establishing data communication among equipment corresponding to allthe soft network bridge ports; and establishing a two-way communication link between the equipment corresponding to the soft network bridge port and the equipment corresponding to the hard network bridge port in combination with the soft network bridge uplink port and the soft network bridge downlink port. The invention provides a reasonable physical address table management method of a soft and hard stacked switch.

The invention provides a static vehicle-mounted Ethernet switch message forwarding method and system and a computer, and the method comprises the steps: constructing a network topology model which comprises a total network, the total network comprises a plurality of network nodes, and the network nodes comprise switches; identifying VLAN ID information in a message sent by a vehicle-mounted Ethernet through a switch, and respectively setting a corresponding forwarding rule for data flow of each VLAN; and identifying a corresponding message type according to the VLAN ID information in the message, and statically forwarding the message data to a preset corresponding message target port according to the message type and the forwarding rule. According to the static vehicle-mounted Ethernet switch message forwarding method provided by the invention, the message data can be statically forwarded to the preset corresponding message target port according to the message type and the forwarding rule, so that the message can be rapidly, efficiently and reliably forwarded in the vehicle-mounted Ethernet.

The invention relates to a CAN network bridge communication system, method and device and a storage medium. The system comprises: two microcontrollers, each of which is provided with two CAN interfaces; the two microcontrollers communicate with each other through two pairs of master-slave peripheral SPIs (Serial Peripheral Interface); the microcontroller is used for identifying a target CAN interface of the data when a CAN interface of the microcontroller or a peripheral SPI interface receives the data, and directly forwarding the data to the corresponding target CAN interface when identifying that the target CAN interface of the data is the CAN interface of the same microcontroller; and when the target CAN interface of the data is identified as the CAN interface of the other microcontroller, forwarding the data to the other microcontroller through a peripheral SPI (Serial Peripheral Interface). According to the invention, the time for processing the notification signal of the slave computer by additionally interrupting the SPI single host communication is reduced, the number of CAN channels is met, and meanwhile, the high throughput up to 6000 fps is ensured, so that the limitation of a multi-channel CAN network bridge in the aspect of microcontroller type selection is weakened.

The invention relates to an energy perception opportunity routing control method for a mobile nano network. After initialization, node serial numbers are decreased progressively to the periphery by taking the aggregation node as the center; a data packet is sent to an aggregation node by taking any nano node as a starting point; and after candidate node selection is carried out, when residual energy is enough to send a data packet and receive confirmation information, the data packet is perceived and forwarded, the candidate node successfully returning ACK is used as a new nano node, and transmission to the next nano node is continued until the data packet reaches the aggregation node. The method is efficient and reliable, the direction of the aggregation node is judged according to the serial number, and the transmission reliability is improved by the candidate nodes, so that the randomly moving nano nodes accurately and reliably forward the data packet, the problem of data packet transmission failure is reduced, and the transmission efficiency is improved; the nano node forwards the data packet under the condition of sufficient energy, the concept of opportunity routing is introduced, and the broadcast characteristics of the wireless network is fully used, thereby effectively improving the performance of the mobile nano network.