115 results about "Radio reception" patented technology

The invention discloses an unmanned aerial vehicle detection method based on radio frequency spectrum identification and deep learning, and relates to the technical field of unmanned aerial vehicle monitoring, and the method comprises the steps: deploying a radio receiving station to collect radio signals, converting the radio signals into a time-frequency graph, extracting multi-scale signal features, carrying out the global average pooling of the multi-scale signal features, and carrying out the global average pooling of the multi-scale signal features; calculating a scale adjustment coefficient to generate a weighted feature, extracting a time sequence signal feature to generate a fusion feature, constructing a full connection layer to perform multi-task processing on the fusion feature, and outputting an unmanned aerial vehicle detection result; a state space is defined, an action space is defined according to environmental parameters, nonlinear harmonic response characteristics in a current state are measured to construct a nonlinear reward function, a comprehensive reward function is formed in combination with action interference effects, and a final interference strategy is output through reinforcement learning. According to the invention, the scientificity and robustness of the identification and interference strategy are significantly improved, the accuracy of the interference strategy is improved, and the interference effect of the unmanned aerial vehicle is effectively improved.

This application relates to wireless communications, including methods and apparatus to monitor radio link conditions of a cellular wireless network adaptively using a low-power wake-up signal (LP-WUS) burst received by a low-power wake-up radio (LP-WUR) of a wireless device when possible and switching to using legacy reference signals received by a main radio only when required. The LP-WUS burst is processed by the LP-WUR to determine a block error rate (BLER) value and / or a signal-to-noise-plus-interference ratio (SINR) value to determine whether the wireless device is in an out-of-sync (OOS) condition. The main radio can be awakened, including when directed to sleep by the cellular wireless network, to perform radio link monitoring when the OOS condition is determined.

Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive, via a first radio, a first signal that indicates one or more resource occasions for transmission of a wake-up signal (WUS). Based on receiving the first signal, the UE may transmit, via a second radio for the UE and via the indicated resource occasions, the WUS, where the WUS indicates for the network entity to operate according to a first mode of operation associated with higher power consumption relative to a second mode of operation. In such examples, the first radio of the UE may be associated with lower power consumption relative to the second radio of the UE. Based on transmitting the WUS, the UE may monitor, via the second radio, for control signaling and communicate with the network entity.

An imaging system (MIS), optionally a medical imaging system, with wireless communication capability and related method. The imaging system comprises a gantry (RG) rotatable around a rotation axis. The gantry includes a detector device (D) capable of recording, in plural spatial positions, measurement data in relation to a subject (such as a patient) (PAT) to be imaged. The system also includes a radio transmitter (TX) for generating a directed radio beam propagatable along a propagation axis to transmit the measurement data to a radio receiver (RX). The radio transmitter (TX) is arranged at the rotatable gantry and is operable so that the propagation direction intersects the rotation axis in a location that is situated away from the rotatable gantry.

The invention relates to a polarising cell (C) configured to receive radiation incident on a first side of the cell, and to produce, from the incident radiation, on a second side of the cell opposite the first side, re-emission radiation that exhibits circular polarisation. The cell comprises a switching element (15) configured to produce, in a controlled manner, a first active phase shift of the incident radiation. Such a cell can be used in a reconfigurable transmitting network, in particular as a component of a radio transmitting antenna or of a radio receiving antenna. A beam-forming and beam-scanning function can be achieved by controlling the active phase shift in each cell of the transmitting array.

The invention relates to an optically transparent sheet (2) for regionally delimiting a space (1). The sheet (2) has a shaped carrier material (7) which has an inner coating (8) facing the space (1) and an outer coating facing away from the space (1). The inner coating (8) and the outer coating (9) each consist at least partially of an electrically conductive material such that they can function as an antenna against electromagnetic radiation (5, 6). The sheet bar (2) also has an electrically conductive connection (11, 13) which connects the inner coating (8) to the outer coating (9) in an electrically conductive manner. The invention also relates to a motor vehicle (3) having such a sheet (2).

The utility model relates to a power supply system for being synchronously opened or closed with an electric appliance. The power supply system comprises a power supply circuit; the relay is arranged on the power supply circuit; the control module is electrically connected with the relay; the power supply module is electrically connected with the control module; the wireless trigger circuit comprises a data coding unit, a trigger switch and a radio transmission unit which are connected in series; the radio receiving unit is used for receiving the radio signal transmitted by the radio transmitting unit; the trigger switch is a flexible switch, is adhered to the electric appliance switch and is used for synchronously acting with the electric appliance switch, and the control module controls the on-off of the relay based on a radio signal received by the radio receiving unit. According to the application, the flexible trigger switch is adhered to the electric appliance switch, and the trigger switch is utilized to control the on-off of the wireless trigger circuit so as to transmit the corresponding electric signal, so that the control module controls the on-off of the relay based on the electric signal so as to achieve the purpose of controlling the on-off of the power supply circuit, thereby realizing the synchronous power-on or power-off of the power supply circuit and the electric appliance.

Method for representing environmental structures in an occupancy grid (1) for a driver assistance system (A1,A2,AN), wherein the environmental information is provided by at least one of the following devices - Environmental sensor, in particular camera, radar or lidar sensor - Navigation device - Radio receiver (c2x), characterized in that a value for a criticality (K) of the environmental structure is stored in the occupancy grid (1) and a function of a driver assistance system (A1,A2,AN) is controlled based on a hazard risk, wherein the criticality (K) is a measure of the negative consequences of driving over these environmental structures, wherein the criticality is based on the damage to be expected when driving over the area and is adapted to known tables for classifying injury severity.

A radio receiver includes a radio frequency (RF) receiver circuit to receive a radio broadcast signal, an internet network interface, a display, a memory, a processing circuit, and a client application including instructions for execution by the processing circuit. The client application is configured to determine geographic location information for the radio receiver, determine a radio broadcast available to the radio receiver using the geographic location information, select metadata associated with the radio broadcast available to the radio receiver from metadata stored in the memory, and present information included in the selected metadata using the display in accordance with the received radio broadcast signal.

System for a real-time radio receiver network, wherein the system comprises: a remote digital antenna digital receiver (“RDADR”) with a processor; a first remote digital antenna (“RDA”) comprising a processor, at least one receiver and at least one antenna; a second RDA with a processor, at least one receiver and at least one antenna, an audio source that is coupled to the transmitter; and an audio output device coupled with the RDADR, where the RDADR, the first RDA and the second RDA are coupled to each other via a digital bus, wherein the first RDA and the second RDA attempt to receive one or more digital signals from a transmitter, and if the one or more digital signals are received without error by the first RDA or the second RDA, the RDA that has received the one or more error-free digital signals transmits the one or more error-free digital signals via the digital bus to the RDADR, where the audio source generates one or more digital signals, and where the audio source is at least a microphone or a musical instrument.

The utility model discloses an LED-based intelligent audio visualization mechanism, which comprises a front shell, a middle shell and a rear shell, a display screen lens is mounted on the surface of the front shell in a covering manner, and the front shell is mounted outside the middle shell in a covering manner. Through the above structure, the system integrates audio visualization, temperature monitoring, radio reception and clock display, and provides a complete intelligent illumination and information display solution. An FFT algorithm is adopted for audio analysis, the accurate rhythm light effect is achieved, and an LED changes in real time along with music; the NTC sensor is used for collecting the environment temperature, and the temperature value is visually displayed on the display screen; fM / AM radio station receiving is supported, and currently listened frequency information is displayed through the display screen, so that the system has a broadcasting function; a time management function is provided in combination with the RTC module, and the current time is displayed through the display screen and can be used for timing in daily life; accurate numerical value display is provided through the display screen, and the problem that color change is not visual due to the fact that only LEDs are relied on is solved.

A radio receiver (20) for determining the position of a sonar buoy (22) is disclosed, comprising a receiving unit (24) and a data processing unit (26). The receiving unit (24) is configured to continuously, and in particular continuously, receive a sequence of radio signals (28) from the sonar buoy (22) from the moment it is deployed. The data processing unit (26) is configured to determine the received level of the radio signals (28) in the sequence of radio signals and, based on a plurality of received levels of different radio signals (28) in the sequence of radio signals, to determine the position of the sonar buoy (22) absolutely or relative to the radio receiver (20).

A loudspeaker for a gas mask is composed of a main body, a pickup and a magnetically controlled switch group, is installed on a 40mm standard interface of the gas mask, and does not affect the installation of a gas filter tank. The main body is composed of an upper shell, a lower shell, a loudspeaker, a battery, a circuit board, a heart-shaped microphone, a magnetically controlled switch group and a radio receiving port, a magnetic induction slot group, a radio installation interface, a wire arrangement clamp and a mode control button are arranged outside the shell. A circuit board is installed in the shell and connected with an external wireless power receiving port, and a battery interface is reserved in the circuit board. According to the invention, when the gas mask is only provided with one standard gas defense filter tank interface and is not provided with a special interphone of the model, the gas mask has sound amplification and infinite communication capabilities.

System for detecting traffic light phases for autonomous and semi-autonomous vehicles, comprising a radio transmitter arranged on a traffic light system, which emits a fixed radio frequency in the MHz range for each signal phase, and a radio receiver integrated in the vehicle, which is configured to selectively detect the emitted frequencies and to determine the current signal phase of the traffic light system from them.

A radio transmission device according to an embodiment of the present disclosure may comprise: a radio frequency (RF) transmission interface for performing radio communication with a radio reception device; and a processor for determining a radio connection state between the radio transmission device and the radio reception device, and transmitting, to the radio reception device via the RF transmission interface, an afterimage compensation execution command for an afterimage compensation operation of a display when the radio connection state is determined to be a normal connection state and a display usage time of the radio reception device exceeds a preset time.

Radio receiver for a radio transmission system (100, 110, 120, 130), wherein a message (101) either (a) is sent as a whole data packet (102) in the radio transmission system (100) without forward error correction, or (b) is sent in the radio transmission system (110) as a data packet (103) divided into sub-data packets (103_1-103_n), wherein the sub-data packets (103_1-103_n) are sent sequentially and are individually decodable or (c) is sent in the radio transmission system (120) as a data packet (104) divided into partial data packets (104_1, 104_n), wherein the partial data packets (104_1, 104_n) are sent one after the other, or (d) is transmitted in the radio transmission system (130) as a data packet (106) using a chirp spreading spectrum, wherein the radio receiver has the following features: an independent power supply in the form of a battery (204, 304) or a photovoltaic arrangement (305), and a first antenna (201, 301) for receiving radio signals from a radio transmitter of the radio transmission system (100) and a second antenna (202, 302) for receiving the radio signals from the radio transmitter of the radio transmission system (100), wherein the first (201, 301) and second antenna (202, 302) are provided for receiving a uniform type of radio signal, wherein the radio receiver adjusts its reception range to the first antenna (201, 301) or second antenna (202, 302) depending on the reception of the radio signals from the radio transmitter.

Method for operating an energy-autonomous radio receiver (105) of a preferably stationary gateway (100), wherein the radio receiver (105) receives telegrams (204, 205, 206, 209) in the form of bursts from at least one radio node (200), preferably a number X of radio nodes (200) of a network (214), and the radio receiver (105) opens receive windows (207, 207a, 208, 208a) for reception, wherein the radio receiver (105) is supplied with electrical energy for energy-autonomous operation by a battery (109), preferably a long-life battery, and / or by a photovoltaic cell arrangement (111), wherein the radio receiver (105) is a radio receiver of the SDR type comprising at least one microcontroller (105), in whose receive operation the radio signals received by the radio receiver (105) are converted into I / Q data (113) converted and the I / Q data 113 further processed using computation time-consuming algorithms,wherein, despite the reception of incoming bursts or radio signals by the radio receiver (105), computational operations of the microcontroller (105) are aborted or at least reduced in scope in the presence of predefined reception scenarios.

This invention relates to the field of data transmission technology, and provides an FTU management method and system combining 5G and ZigBee. The invention establishes a ZigBee ring network, which includes multiple FTU devices; a master management device is determined from the multiple FTU devices; the master management device obtains connection status information of the multiple FTU devices through the ZigBee ring network; wherein the connection status information includes: the connection status between each FTU device in the ZigBee ring network and the corresponding 5G base station of the ZigBee ring network; the master management device sends a first heartbeat message to the corresponding 5G base station of the ZigBee ring network; wherein the first heartbeat message carries the connection status information. This invention solves the problem of unstable FTU communication caused by frequent release of radio access resources due to the inactivity characteristics of FTUs under RRC (Radio Reception Control) limitations.

A system for localizing and object is disclosed herein. The system includes a radio transmitter disposed in a first location, a radio receiver disposed in a second location, a processor operatively coupled to the radio transmitter and to the radio receiver, and a memory operatively coupled to the processor. The memory includes instructions stored thereon that, when executed by the processor, cause the processor to send a first command to the radio transmitter to transmit a continuous radio wave, send a second command to the radio receiver to receive a reflected radio wave, receive from the radio receiver a signal indicating the reflected radio wave is within a spatial region of interest, and determining a three-dimensional location of the object within the spatial region of interest based on the reflected radio wave.

The invention relates to the technical field of radio receiving, in particular to radio receiving equipment and method for testing electromagnetic compatibility, and the radio receiving equipment comprises an equipment main body, a signal monitoring module, a shunting module, a signal processing module and an attenuation module. Once the signal intensity exceeds a threshold value set in advance, the signal intensity is separated by a directional coupler in the shunting module, so that the signal intensity is reduced, and then the signal enters the attenuation module, so that an attenuator is prevented from being damaged; then the signal data enters the filtering module and the detection module to detect the accuracy, legality and peak value of the signal data, then the signal data enters the calibration module, the data firstly enters the data processing module, the storage module inputs the actual loss value into the data processing module, and the loss value and the measurement data are added, so that an accurate measurement value is obtained; therefore, the accuracy of a measurement result is improved.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via a main radio of the UE, a control signal indicating configurations for a connected mode discontinuous reception (C-DRX) cycle including an on duration and an off duration, a low power wake up signal (LP-WUS) including a set of LP-WUS monitoring occasions and a corresponding set of communication windows, and periodic channel state information (CSI) reporting. The UE may monitor for the LP-WUS using a low power radio of the UE during the set of LP-WUS monitoring occasions. The UE may transmit a periodic CSI report during a communication window associated with a LP-WUS monitoring occasion based on the configuration for the periodic CSI reporting.

An apparatus having at least one processor which is configured to: perform an operation using energy provided by an external reading device, wherein, when performing the operation, an input voltage of a near-field radio receiver is regulated to a predefined first input voltage value; and, after the operation has been completed, while the near-field radio receiver is still in the electromagnetic field generated by the external reading device, regulate the input voltage of the near-field radio receiver to a second input voltage value lower than the first input voltage value.

The invention relates to the technical field of earth surface deformation monitoring, in particular to an earth surface deformation altitude difference evolution measurement system based on multi-source data, which comprises a signal acquisition module used for acquiring radio signals of a target area, including direct path signals and reflection signals; the reflected signal identification module is used for establishing a signal reflection model based on the gain coefficient and the time delay parameter of the reflected signal; and the signal interference calculation module is used for calculating a signal interference index for evaluating the interference degree of the reflected signal on the received signal based on the signal reflection model. According to the method, a multi-channel radio receiver is arranged, a three-dimensional terrain model is combined, and a signal propagation model containing a direct signal and a reflection path is established. According to the technology, the geometrical characteristics and signal attenuation laws of different reflection paths can be accurately identified, and a theoretical basis is provided for subsequent interference elimination. The interpretability of a signal propagation path in a complex terrain is remarkably improved, and conditions are created for accurately quantifying multipath interference.

Devices, methods and computer programs for reducing complexity of a machine learning (ML) model-based radio receiver are disclosed. At least some example embodiments may allow, for example, reducing the number of computation operations, the size of data buffers, and / or the amount of data transferred for inference processing.

A microprocessor in a vehicle is communicatively coupled to an autonomous driving system having at least some operational control over the vehicle. A radio is receiver communicatively coupled to the microprocessor that receives an indication from a remote server that a condition exists at a roadway location predicted to be encountered by the vehicle within a predetermined timeframe. The microprocessor communicates the indication and its location to the autonomous driving system.

The present application relates to the technical field of physiological sensing, and provides a safety belt integrated non-contact physiological sensing system, method and electronic device, the system comprising: a radio generating device, a physiological signal sensing device, a radio receiving device and a signal processing device. The physiological signal sensing device is integrated in the safety belt, after inputting the original radio frequency signal, the near-field electromagnetic wave or electromagnetic field is used to perform physiological sensing on the human body, to obtain breathing and heartbeat physiological signal sensing detection signals, the near-field electromagnetic sensing technology ensures efficient sensing of the original radio frequency signal on the human physiological activity, while effectively reducing the influence of external electromagnetic interference and motion artifacts. The radio receiving device is used for signal processing on the physiological signal sensing detection signals, to obtain physiological state signals representing the human physiological activity. The non-contact design avoids the problem that the contact type sensor is difficult to maintain stable contact in a dynamic environment, while significantly improving the comfort and use experience of the user.

A radio broadcast receiver comprising: a memory; and a processor that is coupled to the memory, and, when executing a program stored in the memory, performs operations. The operations include: receiving analog quality information indicating a reception quality of an analog radio based on a broadcast radio including a digital radio and the analog radio; and determining switching of a radio source from one of the broadcast radio and an IP radio to the other of the broadcast radio and the IP radio based on the analog quality information indicating the reception quality of the analog radio.

A system comprises a motor-driven cutting device that can be hand-held and a control unit. The cutting device can be operated via the control unit that can be remote from the cutting device. The cutting device has at least one radio receiver and the control unit has at least one radio transmitter. A safety-relevant distance between the cutting device and the control unit can be measured via a radio connection and the cutting device only be operated if the safety-relevant distance is less than a predetermined first distance value and exceeds a predetermined second distance value.

The present application relates to the technical field of ground deformation monitoring, and particularly relates to a ground deformation height difference evolution measurement system based on multi-source data, comprising: a signal acquisition module, used for acquiring radio signals of a target area, including direct path signals and reflected signals; a reflected signal identification module, used for establishing a signal reflection model based on gain coefficients and time delay parameters of the reflected signals; and a signal interference calculation module, used for calculating a signal interference index for evaluating the interference degree of the reflected signals on the received signals based on the signal reflection model.The present application establishes a signal propagation model containing direct signals and reflected paths by laying out multi-channel radio receivers and combining a three-dimensional terrain model.The technology can accurately identify the geometric characteristics and signal attenuation law of different reflected paths, providing a theoretical basis for subsequent interference elimination, and significantly improves the explainability of signal propagation paths under complex terrain, creating conditions for accurately quantifying multipath interference.

1. Name of the design product: multi-functional unmanned aerial vehicle detector (chest card / waist hanging type). 2. Use of the design product: for unmanned aerial vehicle detection, radio reception and data processing. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.