A wireless charging platform for a wireless sensor network is disclosed, which includes a radio frequency energy distributor and data aggregator (REDDA) system configured to aggregate data from sensor nodes and wirelessly transmit power to the sensor nodes using a beamformed RF signal. The REDDA system can set a radiation pattern for the beamformed RF signal that maximizes RF energy transfer to the sensor nodes based on an environment associated with the sensor nodes. In various embodiments, the REDDA system can include an Internet of Things (IoT) interface connected to an IoT network, and the REDDA system can use information gleaned from the IoT network to set the radiation pattern.

Wireless charging platform using beamforming for wireless sensor network

The invention discloses a wireless charging method for a sensing network node. When an electric quantity of the sensing network node is extremely low, a charging request is sent to a terminal control unit; the terminal control unit receives the charging request and sends a charging instruction to a four-rotor-wing mobile charging unit; after receiving the charging instruction, the four-rotor-wing mobile charging unit firstly detects the own electric quantity; if the electric quantity is insufficient, the terminal control unit charges the four-rotor-wing mobile charging unit until the electric quantity of the four-rotor-wing mobile charging unit is sufficient; the four-rotor-wing mobile charging unit flies to a target node and stops on a node stopping frame to charge the node according to a coordinate position in the charging instruction; and the sensing network node detects that the electric quantity of the node is sufficient or the four-rotor-wing mobile charging unit detects that the own electric quantity is insufficient, charging is stopped; and the four-rotor-wing mobile charging unit returns to a terminal stopping frame to be charged. The wireless charging method is high in self-control capacity; and the electric energy complementation problem of the sensing network node in a complicated environment is solved.

Wireless charging method for sensing network node

A wireless charging network system is disclosed that includes wirelessly charged sensor nodes. The wireless network system can include a gateway node configured to aggregate data from sensor nodes within a coverage area of the gateway node. The gateway node is further configured to wirelessly transmit power to the sensor nodes using a beamformed signal, wherein the gateway node adjusts the beamformed signal to maximize wireless power transfer to sensor nodes within each sector of the coverage area. Location information can be used to adjust the beamformed signal. For example, in various embodiments, the gateway node includes a beamformer sector profile table that defines channel adaptive beam profiles for the beamformed signal for each sector of the coverage area. The gateway node can use location information to define the beam profiles.

Wireless charging platform using environment based beamforming for wireless sensor network

The invention discloses a building health monitoring system based on the building information model technology, and relates to the field of health performance monitoring of high-rise buildings and super high-rise buildings. The system is composed of an alarm system, a composite detection subsystem, an indication light subsystem and a remote management subsystem. Units of the system conduct information interchange through buses. The building information model technology is adopted in the system, so that the building information integration degree is greatly increased; an information sharing platform is provided, and the status, the change rule and the development tendency of a building can be integrally analyzed and evaluated. Wireless communication nodes are arranged between the composite detection subsystem and the remote management subsystem, wireless network coverage of a local area is achieved, and overall reliability and overall applicability of the system are enhanced. Composite detection nodes in the composite detection subsystem are of a multihop clustering network structure, communication energy consumption can be effectively reduced, service loads between the nodes are balanced, and extendibility of a network is improved.

Building health monitoring system based on building information model technology

The invention relates to an inductive charging device having at least one inductive charging coil wound about a coil axis, and an electric or dielectric antenna, which is arranged at a location that is shifted parallel to the coil axis in relation to a location of a region of the charging coil, a location within the at least one charging coil, or a location between the charging coils. The electric vehicle and the charging station each have such an inductive charging device. With the method, one or two such inductive charging devices are used, wherein by means of the inductive charging coils, energy is transmitted, and by means of the antennas, communications data are transmitted.

Inductive charging device, electric vehicle, charging station, and method for inductive charging

Wireless charging and power supply method for wireless sensor network node

The utility model relates to a mobile wireless power charging device of a wireless sensor network node. A wireless power charging dolly is provided with a control processor, an electric power acquisition module, a wireless power charging transmitting module, a wireless communication module used for power charging information interaction, and a dolly self-motion transmission mechanism. The electric power acquisition module is provided with an external power acquisition and conversion module and a storage battery. The wireless power charging transmitting module is provided with a fixed frequency generating circuit, a power amplifying circuit, an energy transmitting antenna. The wireless power charging reception node includes a node processor, an electric power receiving antenna, a rectifier circuit, a power charging voltage detection circuit, a power charging circuit, and a wireless communication module which correspondingly interacts with the wireless communication module of the dolly. Through controlling the on-site rotation of the dolly and the pitching rotation of an energy transmitting coil via the control processor, the optimal coupling position of a transmitting coil and a receiving coil can be found, and the maximum wireless power charging efficiency can be obtained.

Mobile wireless power charging device of wireless sensor network node

The invention discloses a mobile wireless charging and power-supplying method of a wireless sensor network node. A wireless sensor network electric energy transmission system which consists of a wireless charging and power-supplying trolley and a wireless charging and power-supplying receiving node is adopted. The wireless charging and power-supplying trolley is provided with a control processor,an electric energy collection module, a wireless charging and power-supplying transmitting module, a wireless communication module which is used for exchanging charging and power-supplying information and an own motion transmission mechanism of the trolley, wherein the electric energy collection module is provided with an external energy collection and conversion module and a storage battery; andthe wireless charging and power-supplying transmitting module is provided with a fixed-frequency generation circuit, a power amplification circuit and an energy transmitting antenna. The wireless charging and power-supplying receiving node comprises a node processor, an electric energy receiving antenna, a rectification circuit, a charging and power-supplying voltage detection circuit, a chargingand power-supplying circuit and a wireless communication module which correspondingly interacts with the wireless communication module of the trolley. The optimum coupling position of a transmitting coil and a receiving coil is found by controlling the in-place rotation of the trolley and the pitching rotation of an energy transmitting coil by using the control processor; and the maximum wirelesscharging and power-supplying efficiency is obtained.

Mobile wireless charging and power-supplying method of wireless sensor network node

A building state monitoring and escape guiding system comprises a wireless node, a local base station and a remote monitoring center, wherein the wireless node comprises wireless sensing nodes, wireless lamplight indicating nodes and routing nodes, and the local base station comprises a front-end wireless interface and a local monitoring center The wireless node is arranged in a monitoring area, communication among the wireless sensing nodes, the wireless lamplight indicating nodes and the routing nodes as well as among the routing nodes and the front end of the local base station is achieved through a tree-shaped networked ZigBee multi-hop routing protocol, the wireless sensing nodes transfer building environment information and building structural information in the monitoring area to the front end of the local base station through a wireless channel, the front end of the local base station forwards the information to the base station monitoring center through a serial port, command information of the base station monitoring center is broadcast through the front-end wireless interface, and the remote monitoring center accesses to the local base station monitoring center through a local area network The building state monitoring and escape guiding system is in communicated connection with a wireless network so as to form a small server to share disaster information with the outside through the Internet

Building state monitoring and escape guiding system and building state monitoring and escape guiding method

The utility model relates to a wireless charging and feeding device of a wireless sensor network node, which is provided with a wireless electric power transmission system consisting of a charging and feeding host machine and a node charging and feeding slave. The charging and feeding host machine comprises a control processor, a scanning frequency source, an energy emitting antenna and a wireless communication module which is used for interacting charging and feeding information with the sensor network node charging and feeding slave in real time; the energy emitting antenna is a cake-shaped one-dimensional coil which rotates in a three-dimensional space and is controlled by the control processor; the sensor network node charging and feeding slave comprises a node processor, a multidirectional coupling energy receiving antenna, a rectifying circuit, a charging and feeding voltage detecting circuit, a charging and feeding circuit and a wireless communication module which is used for correspondingly interacting with the wireless communication module of the charging and feeding host machine; and the multidirectional coupling energy receiving antenna is a combination of three coils which are arranged in an orthogonal direction.

Wireless charging and feeding device of wireless sensor network node

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