1340 results about "Wireless power supply" patented technology

The invention discloses a positioning method and system combining mobile relay and backscatter communication, and the method comprises the steps: enabling a mobile relay bidirectional wireless charging source in a mobile high-power radio frequency network to be located on the same straight line with two passive sensor nodes in the high-power radio frequency network, solving a receiving signal of the mobile relay bidirectional wireless charging source; according to the positions of the two passive sensors and the mobile relay two-way wireless charging source, the coordinates of the high-power radio frequency charging source are solved through dimensionality reduction and serve as a positioning point, and the coordinates of a to-be-positioned target are solved based on the positioning point; interference elimination is carried out on a received signal of a mobile relay bidirectional wireless charging source in backscatter communication under the high-power radio frequency network; and a high-power radio frequency charging source is used as a sensing positioning node. According to the invention, the communication quality of backscattering under a high-power radio frequency network can be improved, the positioning of the power supply can be quickly realized, and the sensor coverage range of the mobile relay two-way wireless charging power supply is expanded.

A roadway section enables dynamic wireless power transfer to a vehicle. The roadway section comprises pavement material and a wireless power charger. The pavement material defines a pavement section volume having a top surface on which the vehicle traverses. The wireless power charger includes a conductive element located at least partially within the pavement section volume and configured to emit a magnetic field toward the top surface of the pavement section volume to wirelessly transfer electric power to the vehicle. The conductive element includes an upper surface that is located at least five centimeters (5 cm) below the top surface of the pavement section volume.

Disclosed in the present invention are an age-of-sensing analysis and optimization method for a wireless power supply sensor network. The method comprises the following steps: S1, determining a network model; S2, determining a MAC layer model; S3, determining a channel model; S4, on the basis of a multi-segment formula, fitting a nonlinear energy-receiving model, and calculating the decoding success probability of a single sensor; S5, calculating the possibility of information being successfully received in a fusion center under a sensing information requirement threshold; S6, using a hypothesis testing theory to model a fusion-sensing reliability model, so as to obtain the probability of credible fusion; S7, by means of a joint sensing-transmission success possibility, acquiring a closed-form expression of age of sensing, and formulating an information timeliness optimization problem; and S8, respectively optimizing a sensor power supply duration, a fusion information demand threshold, and sensor deployment, so as to give a minimum age of sensing. By means of the present invention, age of sensing is optimized on the basis of the analysis thereof, thereby improving the timeliness of sensing information.

A wireless power transmission apparatus for induction heating includes: a working coil configured to change operation based on selection of a mode of operation from among a plurality of operating modes, the plurality of operating modes including a wireless power transmission mode configured to wirelessly transmit power and a heating mode configured to heat one or more objects, an inverter configured to output, to the working coil, current at an operation frequency, and a controller. The controller is configured to calculate an eccentricity degree between the working coil and a reception coil of a target object, and control, in the wireless power transmission mode, the operation frequency based on the calculated eccentricity degree while performing wireless power transmission to the target object.

This disclosure provides systems, methods and apparatuses for wireless power transmission and reception. A wireless power transmission apparatus may include a primary coil that transmits power to a corresponding secondary coil in a wireless power reception apparatus. The wireless power transmission apparatus may configure characteristics of the wireless power transmission based on a load setting of a wireless power reception apparatus. The wireless power transmission apparatus may take into account a coupling factor and power transfer characteristics of the wireless power reception apparatus in determining a configuration of the wireless power transmission from the wireless power transmission apparatus to the wireless power reception apparatus. In some implementations, a change in wireless power transmission may occur based on a corresponding change in the load. For example, the change in wireless power transmission and the corresponding change in the load may occur in relation to a synchronization event.

Disclosed are systems and techniques for wireless communications. For example, a first network device can transmit, to second network device(s), a first information signal including information indicating a frequency for a backscattered signal. The first network device can transmit, to a third network device, a second information signal including information indicating a frequency shift for shifting a reference signal to produce the backscattered signal. The first network device can transmit the reference signal to the third network device. The first network device can select, based on channel reports received from the second network device(s), the energy harvesting waveform and at least one second network device for providing the energy harvesting waveform to the third network device. The first network device can transmit, to the at least one second network device, a scheduling signal including scheduling instructions to transmit the energy harvesting waveform to the third network device.

Systems and methods for deployable and reusable autonomous vehicle systems and networks are provided. The autonomous vehicles include solar power satellite sandwich modules for collecting solar radiation and / or radiant heat and converting it to useable energy to power on-board systems, for storage, or for transmission as electromagnetic radiation in wireless power transfer. The autonomous vehicles disclosed herein may be configured as nodes in a fixed or mobile deployable network for wireless power distribution and / or data transmission across multiple domains (water / land-to-air-to-space). Fleets of autonomous vehicles may be configured for various applications such as micro- or macro-wireless power grids, beam riding highways for orbital raising, point-to-point-transport and in-flight charging, on Earth and in Space.

A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication / control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication / control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.

The invention discloses a new energy automobile wireless power supply soft switching control system based on a segmentation strategy, and particularly relates to the technical field of new energy automobile wireless power supply, and the control system comprises a resonance current zero-cross detection module which detects a resonance current output square wave signal of a resonance network in real time; the segmented control decision module is used for selecting a strong control strategy or a weak control strategy according to a comparison result of the smoothed frequency difference value and a preset threshold value; the segmented control execution module is used for adjusting the inverter driving frequency by adopting a corresponding control algorithm according to the output of the segmented control decision module; according to the new energy automobile wireless power supply soft switching control system based on the segmentation strategy, the segmentation control logic and the model and algorithm of the special module are designed, so that the driving frequency of the new energy automobile is adjusted, and the driving frequency of the new energy automobile is adjusted to be within the preset frequency locking range. And wide-range frequency locking, rapid dynamic correction and high-precision steady-state control are realized.

An implantable urological device (200) is disclosed. The implantable urological device includes a housing forming a first internal compartment, an electronic component disposed within the first internal compartment, and a header (226) coupled to the housing. The header forms a second internal compartment. A secondary conductor (228) is disposed within the second internal compartment and electrically coupled to the electronic component. The secondary conductor receives a wireless power signal. An antenna (230) is disposed within the second internal compartment and electrically coupled to the electronic component. The antenna receives a wireless communication signal.

A switched capacitor converter can include a switched capacitor stage comprising a flying capacitor and a ladder of three switching devices. A first switching device can be connected between a DC input of the switched capacitor converter and an AC bus. A second switching device is connected between the DC input and a third switching device. The third switching device can be connected between the second switching device and ground. The flying capacitor can be connected between the AC bus and a junction of the second switching device and the third switching device. The switched capacitor converter can further include an inverter stage having an input coupled to the AC bus and an output that delivers an AC voltage.

The present disclosure provides: a method by which a wireless power transmitter transmits wireless power to a wireless power receiver in a wireless power transmission system; and a device using same, the method comprising: entering a power transmission phase related to the transmission of the wireless power; receiving, from the wireless power receiver, a first application message in the power transmission phase; and transmitting, to the wireless power receiver, a second application message, which is a response to the first application message in the power transmission phase, wherein the wireless power transmitter initiates the transmission of the second application message within a specific time period, and the start point of the specific time period is the end point of the first application message.

The invention provides an air-ground integrated reconfigurable intelligent surface energy transmission system, and belongs to the technical field of wireless power supply systems, and the system comprises a visual perception module which is used for obtaining image information of a monitoring area, carrying out the recognition and positioning of an energy receiving target based on the image information, and outputting a target coordinate; the control calculation module calculates phase regulation and control parameter coordinates required for driving the reconfigurable intelligent surface based on the received target; the energy transmission module dynamically adjusts the wavefront phase of the electromagnetic wave based on the phase regulation and control parameter coordinates to form an energy focus point at the position of the energy receiving target; the energy receiving module is arranged on an energy receiving target and used for receiving the electromagnetic energy at the energy focus point and converting the electromagnetic energy into direct-current electric energy. According to the invention, the three technical fields of high-precision real-time sensing, intelligent signal processing and advanced electromagnetic beam control are deeply integrated, and remote, high-efficiency and automatic charging for a plurality of freely moving devices is realized.

The invention relates to the technical field of wireless power supply, and provides a non-contact power supply transmission line, which comprises a transmission module and a mobile power taking module, and is characterized in that the transmission module comprises an excitation cable and a linear transmission unit, and the linear transmission unit comprises a plurality of linear stators along the transmission direction; the movable electricity taking module comprises a rotor and a first electricity taking piece, and the rotor moves under current excitation; the first power taking piece can act with a magnetic field generated by electricity around the excitation cable and generate current so as to supply the current to an electric element installed on the mobile power taking module. According to the non-contact power supply transmission line, the mover is driven to move in a magnetic drive mode, and in the moving process of the mover, the first power taking part can be always coupled with the excitation cable, so that electric energy is uninterruptedly obtained to be supplied to an electric element, and the first power taking part does not need to be in contact with the excitation cable when obtaining the electric energy, so that the power utilization efficiency is improved. The problems that power cannot be continuously supplied to the execution part, and the conveying continuity of the rotor cannot be guaranteed are effectively solved.

A wireless power transmission apparatus for transmitting wireless power to a wireless power reception apparatus, according to an embodiment of the present specification: transmits wireless power to the wireless power reception apparatus by means of magnetic coupling to the wireless power reception apparatus at an operating frequency; communicates with the wireless power reception apparatus by using at least one of in-band communication using the operating frequency and out-band communication using BLUETOOTH® communication; performs an authentication step with the wireless power reception apparatus to increase the level of the wireless power being transmitted to the wireless power reception apparatus; and includes, in a BLUETOOTH® packet, an authentication message required in the authentication step, and transmits the included authentication message to the wireless power reception apparatus via the BLUETOOTH® communication.

A first wireless power system having a first transmit device and a first receive device is operable in close proximity to a second wireless power system having a second transmit device and a second receive device. Each transmit device includes a respective coil driven by an inverter and measurement circuitry that controls the power transmitting devices to promote coexistence of the nearby systems.

A power transmitter (101) provides power to a power receiver (105) via an inductive power transfer signal which is also used by the power receiver (105) for communication by load modulation. The power receiver (105) comprises a transmitter (509) arranged to transmit symbols in accordance with a first or second communication mode where the first mode modulates data symbols by a chip sequence from a set of sequences and the second communication mode does not. The power receiver (105) may transmit data symbols requesting a power transfer signal variation using a chip sequence from the set. A detector (515) may detect if the variation occurs, and if so a selector (513) selects the first communication mode and otherwise it selects the second communication mode. The approach may allow selection of an appropriate communication mode without requiring data to be transmitted from the power transmitter. The approach may provide improved backwards compatibility.

The present invention provides a rotation driving device and an LED light strip rotation imaging device, wherein the rotation driving device comprises a motor for driving the LED light strip to rotate, a control panel for controlling the operation of the LED light strip, a receiving coil for receiving electromagnetic energy to supply power to the LED light strip, a transmitting coil for transmitting electromagnetic energy to the receiving coil, and a wireless transmitting panel for controlling the transmitting coil; the motor comprises a stator and a rotor rotatably installed in the stator, the transmitting coil and the receiving coil are respectively arranged as flat coils, the receiving coil and the transmitting coil are respectively arranged around the rotor, and the transmitting coil and the receiving coil are arranged in parallel and at intervals. In the process of wireless power supply, since the transmitting coil and the receiving coil are integrated in the rotor part of the motor, a strong eddy current effect will not be generated in the entire motor, thus avoiding eddy current heating in the motor and causing failure, reducing energy loss in the process of wireless power supply, shortening the distance between the transmitting coil and the receiving coil, and improving the wireless transmission efficiency of electromagnetic energy.

The embodiment of the invention provides an intelligent implantable wireless power supply kit. An intelligent implantable wireless power supply kit is applied to the field of wireless power supply and comprises a control module, a power supply module and a module support. The control module and the power supply module are both arranged on the module support and fixed to the inner side of a blood vessel through the module support. The control module is electrically connected with the power supply module. The power supply module realizes electric energy storage and power supply, and the control module processes and sends data. According to the scheme, the implantation difficulty of the wireless power supply suite can be reduced, compression of the module support is facilitated, necessary hardware support is provided for the implantable monitoring sensor, and the detection accuracy and precision are improved.

The invention discloses a gear dynamic parameter in-situ testing device based on wireless power supply. The gear dynamic parameter in-situ testing device comprises a wireless power supply system, a sensor, a data processing system, a data transmission system and an upper computer, the wireless power supply system is used for providing electric energy for the sensor and the data acquisition system; the sensor is used for collecting dynamic parameters of the gear; the data processing system is used for processing the gear dynamic parameters; the data transmission system is used for transmitting the processed gear dynamic parameters to an upper computer in a wireless transmission manner; and the upper computer is used for visually displaying the processed dynamic parameters of the gear. The problem of long-time test operation and maintenance of the rotating gear in a complex narrow space is solved, and long-time in-situ test of dynamic parameters of the gear can be ensured.

A wireless power transmitter and methods to: determine a transmitter frequency bandwidth of the wireless power transmitter when no wireless power receiver is inductively coupled with the wireless power transmitter; determine a transmitter-receiver frequency bandwidth when a wireless power receiver is inductively coupled with the wireless power transmitter; compare the transmitter-receiver frequency bandwidth and the transmitter frequency bandwidth; and detect a foreign object near the transmit coil based on the comparison of the transmitter-receiver frequency bandwidth and the transmitter frequency bandwidth.

The invention discloses a power supply system of vehicle window glass and a vehicle, and relates to the technical field of vehicles. The power supply system comprises a wireless charging receiving coil pre-buried in vehicle window glass, a wireless charging transmitting coil installed on a vehicle to which the vehicle window glass belongs, and an integrated circuit board installed in the vehicle window glass and connected with the wireless charging receiving coil. The wireless charging transmitting coil is connected with a low-voltage power supply circuit in the vehicle; the low-voltage power supply circuit is used for providing electric energy for the wireless charging transmitting coil, so that the wireless charging transmitting coil generates a changed magnetic field and transmits the magnetic field to the wireless charging receiving coil; the wireless charging receiving coil induces a changing magnetic field through the electromagnetic induction principle and then generates induction current to charge a battery in the integrated circuit board. Electric energy wireless transmission is realized through an electromagnetic induction principle between the wireless charging transmitting coil and the receiving coil, so that the vehicle window glass can receive electric energy without physical connection, and wireless power supply of the vehicle window glass is realized.

The invention discloses a wireless power supply communication network information age minimization resource allocation method and system, and belongs to the technical field of Internet of Things system optimizing.The method comprises the steps that scheduling decision variables of sensors in a wireless power supply communication network scene are defined; analyzing the information age change in the process of transmitting data to the base station by the sensor, and updating the information age of the data based on the scheduling decision and the data transmission result; the transmitting power and the scheduling strategy of the sensor are jointly optimized, and an optimization model is established with the purpose of minimizing the average information age of the system; and dynamically selecting the current optimal sensor for scheduling by utilizing a reinforcement learning algorithm, determining the transmitting power based on the energy state of the sensor, and iteratively executing until a reward function in the reinforcement learning algorithm is converged to obtain an optimal average AoI. According to the invention, while energy saving is ensured, the transmission success rate of the data packet is improved, the freshness of system information is improved, the service life of the Internet of Things terminal is prolonged, and the dependence on frequent charging and battery replacement is reduced.

An electronic device in a wireless power system may be operable with a removable accessory such as a case. The device may convey wireless power to, from, or through the case while the device is coupled to the case. The device may have coplanar power transmitting and power receiving coils. The removable accessory may have an embedded switchable ferrimagnetic core and a coil that overlaps the switchable ferrimagnetic core. The switchable ferrimagnetic core may be operable in a first state where the switchable ferrimagnetic core is unsaturated. The switchable ferrimagnetic core may be operable in a second state where the switchable ferrimagnetic core is saturated by a magnetic field from a permanent magnet in a wireless power transmitting device. In the second state, the switchable ferrimagnetic core may have a lower magnetic permeability and higher magnetic reluctance than in the first state.

A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured to determine a first driving signal for driving the first antenna based on a first operating frequency, a virtual AC power frequency, a variable slot length, and slot timing, and determine a second driving signal for driving the second antenna based on a second operating frequency, the slot length, and the slot timing. The first power conditioning system is configured to receive the first driving signal to generate the virtual AC power signals at the first operating frequency, the virtual AC power signals having peak voltages rising and falling based on the virtual AC power frequency. The second power conditioning system is configured to receive the second driving signal to generate the virtual DC power signals at the second operating frequency.

A method in a wireless power transfer system can include, in response to a digital ping initiated by a wireless power transmitter, transmitting to the wireless power transmitter during a ping phase, a response signal. The method can further include transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether a wireless power receiver supports an authentication function to authenticate the wireless power transmitter; receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter; and transmitting, to the wireless power transmitter during a power transfer phase, an authentication request message.

A wireless multi-channel sensing device based on a rotating shaft and induction coils comprises a multi-channel flexible sensor layout module, a flexible wireless transmitting module, a pair of mutually coupled power supply coils, a primary power supply conversion module, a flexible wireless receiving module and a control module, according to the invention, a flexible wireless acquisition system is adopted, so that an acquisition and transmission system and a data receiving module system can be bent, a rotating shaft can be better attached to avoid instability of the system, and meanwhile, the size of a wireless coil is matched, and a communication position is reasonably configured, so that energy maximization is realized, and wireless power supply stability of the system is guaranteed; multi-line winding can be prevented in the rotating process of the rotating shaft, stable multi-channel data sensing collection and wireless data communication are achieved, wireless energy transmission maximization is achieved through configuration of the wireless coil, and the influence of signal distortion caused by rotating vibration during collection is effectively prevented. Therefore, weak electric signals such as strain and pressure can be recorded in real time with higher quality.

The present application belongs to the field of transmission technology, and discloses a multi-base station cooperative wireless energy supply energy efficiency evaluation optimization method and system and an electronic device. The present application constructs a passive Internet of Things system model of multi-wireless energy supply base station cooperative energy supply passive energy device; according to the passive Internet of Things system model, the statistical average energy collection efficiency of the passive Internet of Things system is defined, and the statistical average energy collection efficiency is taken as an evaluation index of the energy efficiency of multi-base station cooperative wireless energy supply; an optimization problem of maximizing the statistical average energy collection efficiency is constructed; the optimization problem is solved to obtain power distribution information of the multi-wireless energy supply base station corresponding to the maximization of the statistical average energy collection efficiency; and the multi-base station cooperative wireless energy supply is configured and optimized according to the power distribution information. The present application can meet the demand of multi-base station energy supply for long-term reliability of energy efficiency in practical application.

The invention relates to an underwater multi-source energy supply split type power station system and a working process. Comprising a split raw material pressure-resistant cabin, a split gas-producing pressure-resistant cabin, a split galvanic pile pressure-resistant cabin, a metering pump, a hydrogen-producing reactor, an oxygen-producing reactor, a fuel cell galvanic pile, a thermoelectric generation battery pack, a storage battery pack, a DC / DC converter, a storage battery pack, a wall-attached water tank, a wireless power supply module, a limited power supply module, a cut-off type quick connector, a wet plug connector and the like. The corresponding split pressure-resistant cabins can be replaced or replenished according to the working characteristics and the service life of equipment in different cabins, the whole pressure-resistant cabin does not need to be dragged out of deep water when part of the equipment breaks down or raw materials are replenished once, and the equipment maintenance difficulty and the raw material replenishment difficulty are greatly reduced.

The disclosed inventions include personal Unmanned Aerial Vehicles (UAV's) and UAV universal docking ports “docking ports” to be incorporated into and / or attached to headwear, including helmets, hard hats and hats and face masks, as well as footwear including boots and shoes, clothing and outerwear, devices, gear and equipment, land, air, water and space vehicles, buildings, wireless towers and other mobile or stationary objects and surfaces referred to collectively as “docking stations”. A docking station may have one or more docking ports for docking, networking and charging or refueling compact personal UAVs, and for providing data communications between said UAVs and other electronic devices that remain with the person while the UAV is in flight or driving or landed on terrain. Said docking ports may also incorporate wireless power transmission for remote wireless charging of one or more UAV's. Supplemental power for recharging said UAVs when docked may be supplied by integrated battery(s) in said docking port or me be provided directly from the docking station or other connected power source.