28 results about "Wireless grid" patented technology

The embodiment of the invention discloses a frequency selection method, device and equipment for a Mesh ad hoc network, a medium and a program. The method comprises the following steps: acquiring a current rssi value indicated by the received signal strength of each frequency point calculated when each node in the Mesh ad hoc network of a wireless mesh network executes a subnet detection task; screening alternative frequency points from the frequency points according to the current rssi values of the frequency points; and executing frequency selection operation according to the alternative frequency points. According to the technical scheme of the embodiment of the invention, the frequency selection efficiency and the frequency selection success rate of the Mesh ad hoc network can be improved.

The invention relates to a communication system and a communication method, aiming at a wireless mesh (Mesh) network architecture, considering uplink and downlink multi-hop links and a multi-hop sidelink between users. When a bottleneck area appears in a network, nodes (such as terminal equipment) in the network detect participating nodes in idle or inactive states in the network managed by different centralized nodes under the coordination of the centralized nodes (such as a base station), and multi-hop participating node network topology information is obtained. And according to the requirement of improving the overall performance of the network, proper participating nodes are selected to join in the network and reconstruct a wireless link, and network structure recombination is carried out, so that the network bottleneck can be broken through, and the network throughput is greatly improved.

This application relates to the field of communication technologies, and particularly to a communication method and system for self-organizing a wireless mesh network. A communication method for self-organizing a wireless mesh network includes the following steps: obtaining the networking information of network nodes after networking, where the network nodes include a main node and at least two secondary nodes, and the networking information includes the physical links between all network nodes; formulating broadcast routing information for transmitting a remote control signal based on the networking information, where the broadcast routing information includes the signal transmission paths from the main node to all secondary nodes, and each secondary node only receives the remote control signal once; and transmitting the remote control signal to all secondary nodes through the main node based on the broadcast routing information. The communication method and system for self-organizing a wireless mesh network provided by this application enable the remote control signal to be efficiently transmitted between network nodes.

This invention relates to the field of generator grid connection technology, specifically to a remote wireless grid connection device and method for generator vehicles / generator sets based on 5G / satellite communication. It includes: a grid connection main device installed on the grid side, comprising a main control module that sends control commands to a grid connection execution module on the generator side via a remote wireless communication module; a grid connection sub-device installed on at least one generator side, comprising a grid connection execution module that receives control commands from the grid side and executes grid connection operations via a remote wireless communication module; and a remote wireless communication module comprising a remote wireless communication main module installed on the grid connection main device and remote wireless communication sub-modules installed on the grid connection sub-devices, establishing a wireless bidirectional data communication link between the grid side and at least one generator side. Compared with existing technologies, it eliminates the need for physical communication lines and additional mains bypass switches, enabling parallel grid connection without distance or quantity limitations, and offers flexible sampling and disassembly / removal, as well as high access security.

The invention discloses a construction engineering construction site robot control networking system, and the system comprises a first networking radio station, a plurality of second networking radio stations, a plurality of third networking radio stations, a plurality of construction robots, and a server. The third networking radio station is arranged on the construction robots, the plurality of construction robots form a plurality of robot clusters, each robot cluster comprises at least two construction robots, and the construction robots of different robot clusters are located in different first working areas; the plurality of second networking radio stations and the first networking radio station automatically form a wireless grid network through MESH networking, the plurality of second networking radio stations and the plurality of robot clusters are in one-to-one correspondence, the second networking radio stations are in network connection with each construction robot in the corresponding robot clusters, and the first networking radio station and the server are located in a second working area. The stability of the control networking system of the building engineering construction site robot can be improved.

The embodiment of the invention provides a message transmission method and device based on a wireless mesh network and electronic equipment, the wireless mesh network comprises Bluetooth node equipment, the Bluetooth node equipment is respectively provided with corresponding node identifiers and adjacency lists, the adjacency lists comprise node information of the Bluetooth node equipment and node information of neighbor Bluetooth node equipment, and the neighbor Bluetooth node equipment is provided with the node identifiers and the adjacency lists. Comprises: obtaining a message; the message at least comprises a priority, a source node identifier and a target node identifier; determining a transmission path of the message according to the priority and the node information of the adjacency list; the transmission path is a path for transmitting the message from a source Bluetooth node device corresponding to the source node identifier to a target Bluetooth node device corresponding to the target node identifier; and transmitting the message to the next Bluetooth node device according to the transmission path. According to the embodiment of the invention, the important message is processed preferentially according to the priority, and meanwhile, the transmission path of the message can be optimized according to the node information in the adjacency list, so that the resource utilization rate and the communication efficiency of the wireless mesh network are improved.

This invention discloses a wireless network-based intelligent fire monitoring method and system, relating to the field of fire detection. The method includes: deploying infrared thermal imaging monitoring nodes based on a wireless mesh network; periodically monitoring through these nodes to obtain infrared image data; acquiring temperature data from the infrared image data and calculating surface humidity data; obtaining a two-dimensional image of fire hazard level distribution based on the surface humidity and temperature data; and conducting manual or robotic patrols based on the two-dimensional fire hazard level distribution image. This invention uses infrared remote sensing to calculate the surface humidity and ground temperature of combustible materials within the detection area, combined with multi-node collaborative monitoring via a wireless mesh network and a quasi-effective timing correction algorithm. This fundamentally transforms fire prevention from a passive response to proactive prevention, significantly improving early warning accuracy and the efficiency of resource utilization in fire control.

The application provides a router port identification method and device, electronic equipment and storage medium. The method comprises the following steps: in the case that the router does not have a determined WAN port, sending a DHCP Discovery message through each wired port of the router; in the case that a DHCP Offer message is received through any wired port of the router, analyzing the DHCP Offer message; in the case that an option43 field is carried in the DHCP Offer message, and the content in the option43 field is specified private content, determining that the router is a wireless mesh network MESH sub-node; in the case that the option43 field is not carried in the DHCP Offer message, or the option43 field is carried in the DHCP Offer message, but the content in the option43 field is not the specified private content, determining that the wired port is a WAN port. The method can realize automatic identification of the router port.

The invention discloses a data transmission method of a frequency hopping mesh network, network node equipment and a network system, and belongs to the technical field of wireless mesh networks. The data transmission method of the frequency hopping mesh network comprises the following steps: S100, constructing the frequency hopping mesh network with more than two frequencies and more than one hop; s200, executing clock synchronization operation between each child node and each father node; s300, dividing a data transmission time period of the frequency hopping mesh network into a plurality of time slots; s400, each node selects a frequency point for Rx according to the source MAC address of the data packet and the current time slot; each node selects a frequency point for Tx according to the destination MAC address of the data packet and the current time slot; wherein T < x > / R < x > stops when the current time slot is finished, and then starts in a new time slot. According to the invention, the whole effective bandwidth is fully utilized to improve the overall capacity of the mesh network, and the anti-interference performance of the network is improved.

This application discloses an address prefix allocation method, apparatus, storage medium, and electronic device, relating to the field of smart home technology. The method includes: receiving a first address prefix request sent by a first boundary node, where the first boundary node is a boundary node in a wireless mesh network that has not established a communication connection with a router in the wireless mesh network; if, in a set of sub-network address prefixes matching the first network address prefix of a second boundary node, there is an unallocated sub-network address prefix, selecting a first sub-network address prefix from the unallocated sub-network address prefixes; the second boundary node is a boundary node corresponding to the first boundary node that has established a communication connection with a router in the wireless mesh network; the sub-network address prefixes in the set of sub-network address prefixes are identical in all address bits except for a set of preset address bits, and the preset address bits are all different; and sending a first address prefix allocation message to the first boundary node.

Methods, systems, computer readable storage medium and apparatus, as described herein, registers and configures mesh node devices to operate in a wireless mesh network as part of a process that may be referred to as an onboarding process. Such an onboarding process may store registration information and configuration information in a database at a computer in the cloud or that is accessible via the Internet. This stored information may be used to easily create or expand a wireless mesh network. This registration information may be cross-referenced with a profile associated with a network configuration, with a customer license, and with an identifier that identifies a wireless mesh network. Profiles consistent with the present disclosure may identify configuration preferences of a wireless mesh network and may identify software

The invention relates to the technical field of street lamp data transmission, in particular to a data transmission management method and system based on a wireless grid. According to the scheme, an MCU (Microprogrammed Control Unit), an RF (Radio Frequency) wireless module, a power supply module, an indication unit and a wireless antenna are arranged as data transmission equipment based on the wireless grid; carrying out networking setting of equipment for data transmission based on a wireless grid by taking a gateway as a convergent point; setting a multi-level subordinate path for each data transmission, judging whether a data disaster occurs in the system in real time, and if so, starting a data disaster emergency networking plan; and combining the plurality of data packets in a preset format to carry out data fast transmission. According to the scheme, the tree network based on the wireless grid is constructed, the gateway is set as the rendezvous point, networking is optimized, a subordinate path is configured for data transmission, efficient and stable transmission of street lamp data is achieved, the transmission efficiency is improved, and the data transmission requirement of intelligent management of an urban street lamp system is guaranteed.

A communication system and method are provided. For a wireless mesh (Mesh) network architecture, uplink and downlink multi-hop links and multi-hop sidelinks (sidelink) between users are considered. When a bottleneck area appears in a network, an intra-network node (for example, a terminal device) probes, under coordination of a centralized node (for example, a base station), participant nodes in an idle or inactive (idle / inactive) state in networks that are managed by different centralized nodes, obtains network topology information of a multi-hop participant node, selects, based on a requirement for improvement in overall network performance, an appropriate participant node to join the network, reestablishes a wireless link, and performs network structure reconstruction, to break through a network bottleneck and greatly improve a network throughput.

The embodiment of the invention provides an equipment control system and method based on a wireless mesh network and electronic equipment.The equipment control system comprises a cloud server, an edge server and Internet of Things equipment which communicate based on the wireless mesh network, and the cloud server is used for obtaining a current task demand and sending the current task demand to the edge server; obtaining real-time state data of the Internet of Things equipment; generating a linkage control strategy according to the current task demand and the real-time state data; wherein the linkage control strategy comprises a target Internet of Things device needing to respond to the current task demand and a linkage control instruction corresponding to the target Internet of Things device; sending the linkage control instruction to an edge server; and the edge server is used for sending the linkage control instruction to the corresponding target Internet of Things equipment, so that the target Internet of Things equipment executes the linkage control instruction.

The present application relates to a method, apparatus, terminal device, computer-readable storage medium and computer program product for accessing a kinetic energy switch to a wireless mesh network. The method comprises: obtaining Bluetooth broadcast data emitted when a scanned kinetic energy switch is pressed, the Bluetooth broadcast data carrying a kinetic energy switch identifier of the kinetic energy switch; obtaining kinetic energy switch data of the kinetic energy switch from a server based on the kinetic energy switch identifier; determining a proxy node from device nodes of the target wireless mesh network; obtaining kinetic energy switch setting information of the kinetic energy switch determined based on the kinetic energy switch data, and sending the kinetic energy switch setting information to the proxy node. This method can conveniently and easily complete the network access configuration of the kinetic energy switch without the need for a specific proxy node device.

The present application relates to street lamp data transmission technical field, more particularly, to a kind of data transmission management method and system based on wireless mesh.The scheme includes setting MCU, RF wireless module, power supply module, indicating unit and wireless antenna, as for based on wireless mesh data transmission equipment;With gateway as converging point, the networking setting of equipment based on wireless mesh data transmission is carried out;For each data transmission, multiple levels of dependent path are set, whether data disaster appears in the system is judged in real time, if it appears, data disaster emergency networking plan is started;In the preset format, multiple data packets are merged for data fast transmission.The scheme builds tree-shaped network based on wireless mesh, sets gateway as converging point and optimizes networking, configures dependent path for data transmission, realizes street lamp data efficient and stable transmission, improves transmission efficiency, and guarantees the data transmission demand of intelligent management of city street lamp system.

Provided in an embodiment of the present invention are a key determination method, a storage medium and an electronic device, the key determination method comprising: when a mobile terminal joins a wireless mesh network, indicating a target wireless access point AP in the mesh network to negotiate with the mobile terminal through a first AP to determine a corresponding target key; wherein the first AP is an AP currently establishing communication connection with the mobile terminal in the Mesh network, and the target key corresponding to the target AP node is a key used when the target AP communicates with the mobile terminal after establishing communication connection with the mobile terminal. According to the invention, the problem that the terminal carries out Mesh node switching in the Mesh network is solved, and the technical effect that after the mobile terminal is switched from the first AP to the target AP, the negotiation of the target key is not needed is further achieved.

The application relates to the technical field of network configuration, and discloses a network address allocation method and device, equipment and a storage medium, which are applied to a cloud end and comprise the following steps: obtaining an allocation request for allocating a network address to a target wireless mesh network device, which is sent by a target network configuration device; generating a target network address corresponding to the allocation request and unique in a network to be accessed based on a locally stored address record; and sending the target network address to the target network configuration device, so that the target network configuration device performs network configuration on the target wireless mesh network device by using the target network address to access the network to be accessed. The application transfers the right of allocating a network address to the cloud end, the cloud end generates a target network address based on a local address record according to the allocation request of the target network configuration device, the unique target network address exists uniquely in the network to be accessed, and no repeated address exists, so that network configuration failure caused by repeated address allocation is avoided.

The present application discloses a backhaul link selection method, apparatus, device, and medium. The backhaul link selection method includes: after a wireless mesh network is successfully established, establishing each backhaul link between a network node in the wireless mesh network and a superior device of the network node; classifying each backhaul link into different environmental interference levels based on the current received signal strength and transmission rate of each backhaul link; and selecting each target backhaul link based on the type of each backhaul link, the environmental interference level, and the current received signal strength, wherein the target backhaul link is used for communication between the network node and the superior device. This application solves the technical problem of low traffic throughput of wireless network communication equipment.

A wireless communication node within a mesh-based communication system includes wireless mesh equipment that is configured to establish and communicate over one or more bi-directional wireless links with one or more other wireless communication nodes of the mesh-based communication system. The wireless communication node further includes a multi-tier storage architecture that is configured to store data at the wireless communication node. The multi-tier storage architecture includes at least (i) a first tier of one or more storage units that is designated for storage of a first class of data, and (ii) a second tier of one or more storage units that is designated for storage of a second class of data that differs from the first class of data.

Described herein are mesh network configuration algorithms in which a mesh network configures itself to minimize rebroadcasting. The disclosed embodiments provide a mechanism by which nodes in a network (e.g., a wireless mesh network) can enable / disable rebroadcasting themselves without explicit requests from a commissioning agent or network administrator. A network node receives rebroadcast activation queries from a plurality of network nodes, selects network nodes to activate for rebroadcasting, and sends a message to the activated nodes.

The invention provides an energy storage vehicle and medium-low voltage power supply vehicle cooperative power supply system and a control method, and the system consists of a power distribution network, a medium-voltage diesel generator power supply vehicle, an energy storage vehicle, and a low-voltage diesel generator power supply vehicle. The system mainly comprises a commercial power input end, a load output end, a grid-connected and off-grid switching cabinet, an energy storage converter, a lithium battery, an auxiliary power distribution cabinet and an energy storage vehicle controller. According to the invention, through a combined power protection operation mode taking the energy storage vehicle as a main part and the diesel generator power supply vehicle as an auxiliary part, different control strategies are designed according to voltage classes, rated power and distribution network transformer capacity of the energy storage vehicle and the diesel generator power supply vehicle and according to grid-connected capacity increasing and grid-connected and off-grid power supply scenes, the economic and environment-friendly characteristics of the energy storage vehicle are exerted, and meanwhile, the capacity limitation of the energy storage vehicle is solved; the vehicle utilization rate is improved, the power protection operation scene is expanded, and through wireless communication, the limitation of power grid power protection operation distribution network areas and operation site subareas is solved based on wireless grid-connected power distribution and start-stop control of 5G or an ad hoc network.

The invention relates to a wireless networking communication method and system for battery monitoring, and belongs to the technical field of battery monitoring and wireless communication. The method comprises the following steps: initializing a battery monitoring wireless communication node, selecting a wireless signal access point mode, configuring a network identifier and an encryption parameter in combination with a wireless networking state, and distributing a dynamic connection signal; selecting the node with the highest signal intensity as a father node to establish a wireless mesh network, and updating local network topology information after successful connection; monitoring a signal difference before and after connection according to a communication feedback loop, maintaining a connection state when the signal difference is within a safety range, and terminating weak signal connection through a signal priority selection method when the signal difference exceeds safety communication strength; and packaging a monitoring data packet in combination with an onion routing mechanism, de-packaging and forwarding the data layer by layer on each intermediate node, and transmitting the battery monitoring data of the child nodes to a battery monitoring management cloud.

The application discloses a wireless mesh network device configuration method and device, electronic equipment and medium. The wireless mesh network device configuration method comprises the following steps: when a first wireless network device is connected to a network and a network configuration instruction is detected, setting a device type as a master device according to the network configuration instruction, and sending a network configuration signal with a master device identifier; when a second wireless network device detects a network configuration instruction, performing signal scanning through the second wireless network device; and if the second wireless network device scans the master device identifier, setting a device type as a slave device. The application solves the technical problem that the device configuration process of the wireless mesh network device is complicated when networking.

This application provides a method, apparatus, electronic device, storage medium, and product for data retransmission. The method includes: receiving control information and service data sent by each wireless mesh network node, wherein each node is a neighbor node of a target node; detecting the service data of each node based on the control information of each node; generating Hybrid Automatic Repeat Request (HARQ) feedback information for each node, wherein the HARQ feedback information is ACK or NACK; and then the target node sends the HARQ feedback information of each node through the Physical Downlink Control Channel (PFSC), so that each node determines whether to retransmit the corresponding control information and service data based on the corresponding HARQ feedback information. This method reduces the feedback overhead caused by transmission via the PSFCH.

This application discloses a method and apparatus for selecting a relay for a wireless mesh network, an electronic device, and a storage medium, relating to the field of mesh network technology. The method includes: sending a broadcast message from the device itself and monitoring broadcast messages sent by other devices; obtaining the communication status of each device when the device itself is a relay node; and selecting a target device when a device exists whose communication status meets preset stable communication conditions, and sending a relay function activation instruction to the target device, causing the target device to become a relay node. This method can improve the reliability of mesh networking.

The present application relates to the technical field of Bluetooth wireless mesh network communication, and discloses a message processing method, apparatus, device and storage medium, including: performing real-time monitoring on a target Bluetooth wireless mesh network to determine whether the states of a preset number of device nodes in the target Bluetooth wireless mesh network change simultaneously at the current moment; if so, immediately triggering the preset number of device nodes to send status change messages outward at different times respectively. It can be seen that by real-time monitoring the target Bluetooth wireless mesh network, the present application discovers the device nodes whose states change simultaneously in the network, and enables these device nodes to send status change messages outward at different times, so as to disperse the processing of a large number of instantaneous messages, and avoid the problem that a high message loss rate is caused by network congestion due to a large number of instantaneous messages.

The application discloses a method, system, platform and storage medium for self-negotiating a master AP device based on a wireless mesh network. The method determines whether any AP device in the wireless mesh network obtains a first message sent by a master AP device. If yes, the any AP device is switched to a slave AP device. Otherwise, the next step is executed. Whether a WAN port is connected with an external network is detected. If yes, the next step is executed. Otherwise, the previous step is executed. A second message with a first network status is broadcasted. According to the broadcasting of the second message of other AP devices, the AP device is switched to a master AP device in real time. The first network status is network status data of the AP device itself. The system, platform and storage medium corresponding to the method are provided. In the mesh network, when more than two devices are connected with the external network, the mesh network automatically selects a device with better network status as the master AP device, without manual switching by the user, so that the manual operation of the user is reduced and the experience of the user is improved.