摘要:
The present invention aims to provide a technical solution for recognizing a target device from a plurality of devices as follows: sending a first and second wireless signal to a plurality of devices and determining the target device according to the signal strength differences between the first and second signal strengths. By using the technical solutions of the present invention, the “near-far-effect” caused by a single antenna can be overcome, and different offsets in the measured received signal strengths caused by the diversity of the receiving antennas can also be eliminated, and thus the accuracy of recognition is improved efficiently.
摘要:
A method of selecting and controlling devices based on wireless communication technology. The wireless controller sends a probe message to one or more devices; each device receives the probe message, obtains information in respect of its relative position with respect to the wireless controller, determines a response time to respond according to a first predefined rule, based on its relative position information: detects response signals from other devices before expiration of the response time; decides whether to send or not to send its response signal according to a second predefined rule and the detecting procedure of response signals from other devices; the wireless controller receives response signals sent by the devices after the comparison of the relative position information of each device with respect to the wireless controller, and selects the target devices from the devices. Embodiments of the present invention reduce the complexity, delay and energy consumption of the selection for wireless devices, and are especially applicable for wireless lighting systems.
摘要:
The invention provides a system 100 for providing wireless control on an electronic device 30. The system 100 comprises a control station 10 and a wireless device 20. The control station 10 is configured to send a wireless exciting signal and a wireless control command. The wireless device 20 comprises an exciter module 201 and a processor module 210, wherein the exciter module 201 is configured to collect power from the wireless exciting signal and subsequently change a state of the processor module 210 from an inactive state to an active state, and the processor module 210 is configured to receive the control command and adjust functions of the electronic device 30 in accordance with the control command. The invention also provides a method and a wireless device.
摘要:
A method of selecting and controlling devices based on wireless communication technology. The wireless controller sends a probe message to one or more devices; each device receives the probe message, obtains information in respect of its relative position with respect to the wireless controller, determines a response time to respond according to a first predefined rule, based on its relative position information: detects response signals from other devices before expiration of the response time; decides whether to send or not to send its response signal according to a second predefined rule and the detecting procedure of response signals from other devices; the wireless controller receives response signals sent by the devices after the comparison of the relative position information of each device with respect to the wireless controller, and selects the target devices from the devices. Embodiments of the present invention reduce the complexity, delay and energy consumption of the selection for wireless devices, and are especially applicable for wireless lighting systems.
摘要:
The invention provides a system 100 for providing wireless control on an electronic device 30. The system 100 comprises a control station 10 and a wireless device 20. The control station 10 is configured to send a wireless exciting signal and a wireless control command. The wireless device 20 comprises an exciter module 201 and a processor module 210, wherein the exciter module 201 is configured to collect power from the wireless exciting signal and subsequently change a state of the processor module 210 from an inactive state to an active state, and the processor module 210 is configured to receive the control command and adjust functions of the electronic device 30 in accordance with the control command. The invention also provides a method and a wireless device.
摘要:
In order to solve problems of low accuracy, high computation complexity and low assigning success rate of a topological graph existing on a large scale for device assigning, the present invention proposes methods and apparatuses for automatic assigning of devices. According to an aspect of the present invention, by comparing measured distance-related information between each target device and reference devices, and assumed distance-related information between reference devices and target devices corresponding to assigning nodes, and then selecting the target device with smallest difference to correspond to the assigning nodes, the assigning accuracy of devices is largely improved; according to another aspect of the present invention, based on multiple reference devices, by determining multiple target devices at multiple assigning nodes simultaneously with a large safety margin, assigning complexity is decreased; according to yet another aspect of the present invention, by dividing a large topological graph into blocks and assigning and verifying sub-topology blocks, the assigning accuracy of sub-topology blocks is improved, and error dispersion is avoided, so that the whole assigning success rate of the topological graph is increased.
摘要:
A switchable transformer architecture is disclosed. The switchable transformer includes a primary winding, a secondary winding, and a tertiary winding, in which either the secondary winding or the tertiary winding establish a signal path to the primary winding, based on the position of switches, enabling transmission to either of two blocks sharing the transformer. The transformer architecture achieves high isolation between sharing blocks and low loss on the signal path.
摘要:
A control circuit, a control method, and a power supply device are provided. The control circuit includes an obtaining sub-circuit, adapted to obtain a voltage signal from a reverse surge current when the reverse surge current appears on a primary side of a switch power circuit of a synchronous rectification circuit; a maintaining sub-circuit, adapted to continuously output a first control signal in a preset first time period when the voltage signal is greater than a preset first voltage threshold; and a control sub-circuit, adapted to control and switch off switch tubes of the secondary side of the switch power circuit of the synchronous rectification circuit according to the first control signal. Thus, a reverse current surge of the switch power circuit of the synchronous rectification circuit can be effectively suppressed, and the safety of a switch power supply of the synchronous rectification circuit can be effectively protected.
摘要:
The present invention proposes a device and method for detecting the channel state. The detecting device first monitors a channel within a predetermined duration so as to receive a plurality of signals transmitted on the channel, and then determines whether part of the plurality of signals possess periodicity. If part of the plurality of signals possesses periodicity, then the detecting device determines that the channel is interfered. Even if there is no or less data traffic over one or more wireless networks which occupy the channel, the detecting device and method provided by the present invention are capable of detecting the existence of the one or more wireless networks, and determine that the channel is interfered, so as to avoid potential interference. In addition, the cost to detect whether a channel is interfered will be reduced effectively by using the detecting device and the detecting method according to embodiments of the present invention.
摘要:
The method according to the invention can be used for communicating a multimedia message from a transmitter (40) via a terminal (10) to a further terminal (20). The method comprises: the terminal (10) receiving a notification including address information of the multimedia message from the transmitter (40); the terminal (10) detecting a further terminal (20) capable of receiving at least part of the multimedia message; the terminal (10) sending address information from the further terminal (20) to the transmitter (40) or vice versa; the further terminal (20) receiving the multimedia message on the basis of the address information. In this way, the multimedia message is communicated quickly and securely from a transmitter (40) via a terminal (10) to a further terminal (20).