54 results about "Two-way radio" patented technology

The invention discloses a reactive power optimization method for a bidirectional wireless electric energy transmission system of an electric vehicle, and belongs to the technical field of wireless electric energy transmission of the electric vehicle. Zero-voltage switching operation of all switching tubes is realized by changing phase shift angles in the grid-side full-bridge converter and the vehicle-side full-bridge converter; then obtaining the voltage and current of the alternating-current end of the vehicle-side converter or the grid-side converter and the phase difference in real time, and further obtaining the relative size of reactive power in the forward energy transfer state and the reverse energy transfer state; and the phase difference between the grid-side converter and the vehicle-side converter is adjusted in real time according to the corresponding relation between the reactive power and the external phase shift angle, so that optimal control of the reactive power in the two-way wireless power transmission system of the electric vehicle is realized. According to the invention, ZVS operation of all switching tubes in the system and optimal control of reactive power can be realized.

The invention provides a novel bidirectional wireless power transmission system, a design method, equipment and a medium. According to the novel bidirectional wireless power transmission system, energy is transmitted to double loads through circuits on the left side and the right side, planar square coils with mutually orthogonal left and right sides and an S-S-LCC compensation structure are adopted, the energy utilization rate can be improved, the circuits on the two sides of the wireless power transmission system are mutually independent, constant currents output by the circuits on the two sides do not interfere with each other, and the wireless power transmission efficiency is improved. Therefore, constant current can be output to different loads, and the complexity of a wireless power transmission system is reduced.

The invention discloses a bidirectional wireless power transmission system and a wide-range soft switching regulation and control method, and belongs to the technical field of bidirectional wireless power transmission. The invention aims to solve the problem of large switching loss of a bidirectional wireless power transmission system. The system comprises a DC input voltage UDC, an inverter circuit, a first auxiliary network, an input electrolyte capacitor CO1, a transmitting terminal compensation network, a coupling mechanism, a receiving terminal compensation network, a rectification circuit, a second auxiliary network, an output electrolyte capacitor CO2 and a charging voltage UBAT. An input electrolyte capacitor CO1 and a first auxiliary network are arranged in parallel between the DC input voltage UDC and the inverter circuit; the inverter circuit is connected with the coupling mechanism through the transmitting terminal compensation network, and the coupling mechanism is connected with the rectifier circuit through the receiving terminal compensation network; a second auxiliary network and an output electrolytic capacitor CO2 are arranged in parallel between the rectifier circuit and the charging voltage UBAT. According to the invention, wide-range soft switching control can be realized.

Method for operating a bidirectional radio node (10), in particular a sensor node, preferably a utility meter, in a network infrastructure (6), wherein the radio node (10) supports at least one radio technology (21, 22) and is preferably operated with an autonomous energy source, in particular in the form of a long-life battery (16), wherein the radio node (10) sends data in the form of preferably configurable data types to a receiver (3, 4), and wherein a periodic transmission (1, 2) of data, in particular the periodicity of which can be individually determined, takes place by the radio node (10), wherein the periodic transmission (1, 2) of data by the radio node (10) takes place taking into account a prioritization, wherein for a priority transmission (1 or 2) of data or for a priority bidirectional communication (20), the periodic transmission (1, 2) of the data is interrupted by periodically provided transmissions (1 or 2)2) are not carried out or are postponed.

A method operates a bidirectional radio node, in particular a sensor node, preferably a consumption meter, in a network infrastructure. The radio node supports at least one radio technology and is preferably operated with an autonomous energy source, in particular in the form of a long-life battery. The radio node dispatches data in the form of, preferably configurable, data types to at least one receiver, and wherein a periodic dispatch of data, in particular individually definable in its periodicity, is carried out by the radio node. The periodic dispatch of data is carried out by the radio node taking into account a prioritization. The periodic dispatch of the data is interrupted for a higher-priority dispatch of data or for a higher-priority bidirectional communication, whereby periodically provided dispatches are not carried out or are deferred in time.

Systems, devices, methods, and computer-readable media provide improved aviation operations management communications. A method includes receiving, from a first two-way wireless communications device and at a communications manager, a first communication, determining, by the communications manager, that the first communication includes (i) a question or (ii) a standard communication that has a standard response in accord with two-way radio transceiver etiquette, responsive to determining that the first communication includes the question or (i) a question or (ii) a standard communication that has a standard response in accord with two-way radio transceiver etiquette, generating, by the communications manager, a response to the first communication, and transmitting the response to the first two-way wireless communications device.

This disclosure provides methods, components, devices, and systems for establishing wireless device connectivity between devices. Some aspects more specifically relate to auto-pairing devices to establish a wireless communication connection between devices using a docking station. These devices include a headset, a push-to-talk device, and a two-way radio. Upon docking the devices to the docking station, an auto-pairing process is initiated to establish a wireless communication connection between the devices. The docking station can exchange device information associated with the headset and the push-to-talk device and transmit that information to the two-way radio. Upon receiving the device information, the two-way radio and other devices can establish wireless communication connections. As a result, the devices are automatically paired with each other when the devices are docked to the docking station.

A system comprises a controller onboard a vehicle that provides for autonomous taxiing of the vehicle at an airport. Onboard optical sensors include look-forward and look-down optical sensors. An onboard bidirectional radio receives ATC clearance information. The system also includes onboard aiding sensors, and an airport moving map database. An ATC clearance processing module translates the ATC clearance information into processor readable information. An image processing module receives image data from the optical sensors, and provides object detection and image interpretation functions. A taxi route generation module receives translated ATC clearance information and map information to generate a travel route at the airport for the vehicle. An aiding sensor data processing module determines state information for the vehicle based on vehicle state data. A command generation module generates commands for driving the vehicle. A control module automatically drives the vehicle on an airport surface, and controls a brake and throttle.

The present invention relates to the field of wireless power transmission, and in particular to a two-way wireless power transmission system for an underwater unmanned submersible, which comprises a wireless power transmitting device arranged at a charging station, a wireless power transceiver arranged on the submersible, and a wireless power receiving device arranged on an energy supply device; the wireless power transmitting device is used to convert DC input electric energy into alternating magnetic energy and transmit it to the wireless power transceiver; the wireless power transceiver operates in two states, receiving and transmitting. When operating in the receiving state, the wireless power transceiver is used to convert the received magnetic energy into DC electric energy to realize the charging of the submersible; when operating in the transmitting state, the wireless power transceiver is used to convert the electric energy stored in the submersible into alternating magnetic energy and transmit it to the wireless power receiving device; the wireless power receiving device is used to convert the received magnetic field electric energy into DC electric energy to realize the charging of the energy supply device. The present invention realizes two-way wireless transmission of electric energy of the submersible.

The present invention is a modeling method for a bidirectional wireless power transmission system based on a unified composite working mode. The modeling method includes the following: taking the bidirectional wireless power transmission system with a bilateral LCC resonance topology as the object, and making a detailed division of the basic working stages of the system mode according to the different output levels of the bilateral H-bridges; when, the unified composite working mode Y of the system is denoted as PN / PO / PP / PO / ON / OO / OP / OO in the positive half cycle and NP / NO / NN / NO / OP / OO / ON / OO in the negative half cycle; when, the unified composite working mode Y<supgt;*< / supgt; of the system is denoted as PP / PO / PN / PO / OP / OO / ON / OO in the positive half cycle and NN / NO / NP / NO / ON / OO / OP / OO in the negative half cycle; obtaining the action time of each basic working stage of the unified composite working modes Y and Y<supgt;*< / supgt>; according to the physical structure of the bidirectional wireless power transmission system with bilateral LCC, combining the form of the unified composite working mode to obtain a unified discrete mathematical model equation, and completing the discrete modeling of the bidirectional wireless power transmission system.

An interposer accessory fits between a two-way radio and its removable battery and maintains pass-through power connections between them, with any auxiliary communication contact passed through without termination. Power-conversion circuitry provides at least one regulated external output, for example a 5 V USB output accessible from the housing. In some embodiments the interposer further includes a USB input interface configured to accept external power and charge the attached battery through a unidirectional and / or OR-ing arrangement. The accessory can retain the radio's form factor using tabs and a spring latch with a thumb release, and may include indicators that convey charge state at the housing. The interfaces can be dimensioned for different radio families while preserving the pass-through connections and external output. USB Power Delivery capability is optional.

In order to support two-way radio communications from enclosed space areas, such as street manholes, an antenna is required to provide high signal quality for satellite, cellular, or radio frequency communications under high impact traffic conditions. On a wastewater manhole the antenna must provide efficient two-way communications as well as survive the frequent impacts of heavy, high-speed traffic. A common method of mounting is to use high strength adhesives to secure the antenna to the manhole cover. This becomes a permanent attachment, which can be costly and inflexible. Described is a mounting method and hardware that provides secure attachment and the ability to remove and remount a housing-protected antenna on an alternative manhole cover. This reduces waste and cost and labor for re-installation.

This invention discloses a bidirectional wireless power transfer system for electric vehicles, relating to the field of wireless charging technology for electric vehicles. By configuring the first and second high-frequency conversion units as full-bridge converters, this invention enables bidirectional power flow. Switches are installed on both the connection branch between the first high-frequency conversion unit and the ground-side compensation network, and on the connection branch between the second high-frequency conversion unit and the vehicle-side compensation network. By controlling the opening and closing of these switches, the entire bidirectional wireless power transfer system can transmit power efficiently across a wide operating range, from light to heavy loads.

The application relates to a configuration system (100) for a wireless communication network (102) that comprises at least one first communication device (104b) and at least one second communication device (104c). The at least one first and second communication devices (104b, 104c) belong to a plurality of communication devices (104, 104a, 104b, 104c, 104d). Each communication device (104, 104a, 104b, 104c, 104d) in the plurality of the communication devices is a radio node device configured to provide a bi-directional radio communication with at least one of the plurality of the communication devices. After receiving (220) a content of a network persistent configuration data (CO) from a communication device (104a) belonging to the plurality of the communication devices and storing (222) the received content of the configuration data, each first communication device (104b) is configured to broadcast (224) a configuration data description (DE), which comprises a version identifier (VE) of the configuration data, periodically in the network for indicating a capability of said first communication device to send (228) the stored content of the configuration data, which is in accordance with the version identifier, on request.

Portable two-way radio (100), comprising: a transceiver (208) configured to process an audio signal representing a warning tone; a processor (204) coupled to the transceiver (208), the processor (204) configured to: Determining (405) whether the transceiver (208) is in a transmit state; and Determining (410) whether an audio volume level setting exceeds a threshold associated with an intensity of the alert tone; a current limit trigger circuit (214, 314) coupled to the processor (204); and a warning tone current limit controller (218, 318), wherein the current limit trigger circuit (214, 314) is configured to activate the warning tone current limit controller (218, 318) in response to determining (405) that the transceiver (208) is in the transmit state and determining (410) that the audio volume level setting exceeds the threshold associated with the intensity of the warning tone, the warning tone current limit controller (218, 318) comprising: a voltage scaling controller (368) configured to generate a reduced audio signal by adjusting a peak-to-peak amplitude of the audio signal representing the warning tone in response to activation by the current limiting trigger circuit (214, 314); and a warning tone amplitude modulator (372) configured to generate an adjusted audio signal by limiting the maximum amplitude of the reduced audio signal in response to activation by the current limiting trigger circuit (214, 314).

The disclosure relates to dual audio communication system designed for use with two-way radios, including Bluetooth-enabled two-way radios. The system enhances the functionality of traditional PTT systems by allowing users to communicate effectively without the need to be physically near the radio or to wear a Bluetooth headset. The subject matter includes methods for programming the Bluetooth-enabled radio to pair with a Bluetooth headset and / or a remote Bluetooth PTT button and provide dual audio play using the radio speaker and the headset, or other speakers. It allows for the simultaneous playback of audio through both the radio's speaker and the Bluetooth headset, ensuring that users can hear incoming communications regardless of their proximity to the radio or whether they are wearing the headset. The system provides flexibility in how PTT communications are initiated and received, catering to various user environments and scenarios, such as operating a vehicle or wearing Bluetooth-enabled hearing aids.

A two-way radio device for hearing protection devices provides communication capabilities to users wearing hearing protection devices, which would ordinarily hinder or block communication. The two-way radio device removably attaches to a portion of a hearing protection device and connects to the speakers thereof. One or more wireless transceivers provide wireless transmission of audio between users of hearing protection devices enhanced with the two-way radio device. Users remain protected by their hearing protection devices and while communicating freely in high decibel environments.

The invention relates to the technical field of wireless electric energy transmission, in particular to an asymmetric coupling variable coil type bidirectional wireless electric energy transmission system, method and equipment, the system comprises a power grid side unit and a load side unit, the power grid side unit comprises a primary side direct current power supply, a primary side inverter, a variable primary side compensation network and a primary side coil assembly, the first coil and the second coil are connected in series; a primary side controller; the load side unit comprises a secondary side direct-current power supply, a secondary side switch network, a variable secondary side compensation network and a connection secondary side switch network; a secondary coil; the secondary side controller is used for adjusting the conduction state of the secondary side switching network; according to the asymmetric coupling structure of the primary side coil assembly and the secondary side coil, wireless bidirectional constant current or wireless bidirectional constant voltage transmission of electric energy is carried out. According to the invention, the problems of insufficient bidirectional control capability, rigid structure and hardware redundancy caused by dependence on a complex control link and a symmetrical structure of the existing bidirectional wireless power transmission system are effectively solved.

The present invention discloses a bidirectional WPT AC-AC frequency conversion system based on a variable-topology bidirectional AC / AC system. The system comprises a variable-topology bidirectional AC / AC-1 unit, a wireless power transmission unit, and a variable-topology bidirectional AC / AC-2 unit, which are connected in sequence. The circuit has two energy transmission modes: forward energy transmission and reverse energy transmission. During forward energy transmission, the energy transmission path is: AB side → MN side of the variable-topology bidirectional AC / AC-1 unit → OP side of the wireless power transmission unit → variable-topology bidirectional AC / AC-2 unit → GH side; during reverse energy transmission, the energy transmission path is: GH side → OP side of the variable-topology bidirectional AC / AC-2 unit → MN side of the wireless power transmission unit → variable-topology bidirectional AC / AC-1 unit → AB side. The circuit of the present invention is capable of achieving efficient bidirectional wireless power transmission. Both the front and rear stages of the wireless power transmission circuit adopt a variable-topology bidirectional AC / AC solution to achieve a wireless power transmission frequency conversion output function, thereby improving system efficiency and reducing costs. The circuit is novel, reliable, and practical, and the control scheme is novel.

This invention relates to a multifunctional smart safety device designed for versatile use in various environments including homes, cars, bicycles, boats, and outdoor activities such as hiking and emergency scenarios. The device incorporates an attachable and detachable durable aluminum enclosure, providing robust protection against dust and water while maintaining lightweight characteristics, ensuring functionality in diverse weather conditions. Key features include a flashlight, NOAA and AM / FM radio, a two-way radio for communication in remote areas, a power bank with a replaceable battery, solar charging, multiple functional LEDs, an SOS flashlight beacon, an ultrasonic dog whistle, a micro-SD card MP3 slot, a digital media player, a built-in speaker, telescopic antenna, Bluetooth connectivity, bi-directional USB-C, a directional compass, and an LCD screen display. This combination of features provides users with a comprehensive safety tool adaptable to a wide range of emergency and recreational scenarios.

A two-way radio device for hearing protection devices provides communication capabilities to users wearing hearing protection devices, which would ordinarily hinder or block communication. The two-way radio device removably attaches to a portion of a hearing protection device and connects to the speakers thereof. One or more wireless transceivers provide wireless transmission of audio between users of hearing protection devices enhanced with the two-way radio device. Users remain protected by their hearing protection devices and while communicating freely in high decibel environments.

The disclosure relates to dual audio communication system designed for use with two-way radios, including Bluetooth-enabled two-way radios. The system enhances the functionality of traditional PIT systems by allowing users to communicate effectively without the need to be physically near the radio or to wear a Bluetooth headset. The subject matter includes methods for programming the Bluetooth- enabled radio to pair with a Bluetooth headset and / or a remote Bluetooth PIT button and provide dual audio play using the radio speaker and die headset, or other speakers. It allows for the simultaneous playback of audio through both the radio's speaker and the Bluetooth headset, ensuring that users can hear incoming communications regardless of their proximity to the radio or whether they are wealing the headset. The system provides flexibility in how PTT communications are initiated and received, catering to various user environments and scenarios, such as operating a vehicle or wearing Bluetooth-enabled hearing aids.

A topology-variable wireless power transmission system disclosed by the present invention comprises a first variable filter, a first H bridge, a wireless power transmission module, a second variable filter and a second H bridge which are sequentially connected in series, a port AB is at one side of the first variable filter, and the other side CB of the first variable filter is connected in series with the first H bridge. The other side HI of the first H bridge is connected in series with one side of the wireless electric energy transmission module, the other side OP of the wireless electric energy transmission module is connected in series with one side of the second H bridge, the other side UW of the second H bridge is connected in series with one side of the second variable filter, and the other side of the second variable filter is a port MN. The wireless power transmission system has the outstanding advantages that a variable circuit topology structure is applied, so that the system circuit topology has flexible conversion capability, the instant requirements of the bidirectional wireless power transmission system under different working conditions can be met, and a foundation is built for stable optimization of multifunctional application of wireless power transmission.

The present invention discloses a position offset and metal foreign object detection system for wireless charging of electric vehicles. A bidirectional wireless power transmission system is configured between the ground terminal and the vehicle terminal. An array of foreign object detection coils is also configured on the ground terminal coil. When performing metal foreign object detection, the detection voltage of each foreign object detection sub-coil is collected separately. The sum of the detection voltages of two foreign object detection sub-coils at positions symmetrical to the origin is used as a set of reference voltages. Metal foreign object detection is achieved by analyzing the changes in the eight sets of reference voltages. Offset detection sub-coils are also superimposed on the foreign object detection sub-coils at the four vertex corners. When performing vehicle-side coil offset detection, the voltage of any offset detection sub-coil is collected to achieve vehicle-side coil offset detection. The system has the advantages of a simple structure and convenient control, and can achieve both efficient and low-cost vehicle-side offset detection and convenient metal foreign object detection.

The application discloses a symmetrical bidirectional wireless power transmission three-phase circuit based on direct AC-AC conversion, comprising input / output terminals UVW, three-phase / single-phase AC-AC modules, wireless power transmission modules, single-phase / three-phase AC-AC modules and input / output terminals ABC which are connected in sequence, wherein the system circuit has the bidirectional energy transmission capability of wireless power transmission. The bidirectional three-phase voltage conversion and frequency conversion of wireless power transmission are completed, direct AC-AC conversion is adopted to effectively improve the system, and the system efficiency is further improved by adopting the soft switching technology, so that the circuit is novel and practical. The symmetrical bidirectional wireless power transmission three-phase circuit based on direct AC-AC conversion can be widely applied to three-phase alternating current applications in the transportation industry and various industrial and mining enterprises.

Multifunctional system for real-time measurement of bio-signals for assessing the condition of the muscle under examination, based on visualization of the time waveforms of the measured bio-signals EMG, MMG, BIOZ and muscle vibration signals it containing electrodes E1 (1), E2 (2), E3 (3), E4 (4), ER (5) and a microphone MIC (6) together with a three-coordinate accelerometer AKC (7) placed on a flexible Kinesio tape attached to the muscle under test, the outputs of which are connected to inputs (22, 23, 28) UPS Signal Processing System (10), and whose digital output (29) is connected to the input (30 ) of the Measurement Management Processor PZP (11), whose output (31) is connected to the input (32) of the two-way radio data transmission channel KRA1(12), whereby the UPS (10), PZP (11) and KRA1(12) circuits constitute an integrated MAD Data Acquisition Module (9) installed on the patient outside the examined muscle, while the output (33) of the KRA1 radio transmission channel (12) is connected by radio to the input (34) of the two-way radio channel KRB1 (14), the output (25) of which is connected to the input (36) of the Data Processing Processor PPD (17), which in turn transmits measurement data by cable from the output (42) or by radio to the input (43) of the Diagnostic Computer KD (19), for visualization of the time waveforms of the measured bio-signals.

The utility model discloses a kind of two-way radio equipment with foldable antenna storage structure, including antenna assembly being installed in the top of two-way radio equipment, its side is also provided with storage assembly;Antenna assembly includes rotating base, rotating base side is equipped with first rotating suite, first rotating suite other end is equipped with antenna segment one, antenna segment one top is equipped with second rotating suite, second rotating suite is fixed with antenna segment two, fixed plate is equipped between antenna segment two bottom and second rotating suite, and elastic sleeve is fixed between fixed plate and antenna segment two bottom;The utility model can stably store antenna in the storage groove of equipment top under non-use state by foldable antenna assembly and special storage assembly;Damage due to accidental collision, scratch when carrying or storing is effectively avoided;By antenna assembly using multi-section rotating structure, so that antenna not only can be unfolded and withdrawn, but also can be adjusted at multiple angles when unfolding.

The invention discloses a two-way radio distance measurement method applicable to a high dynamic environment, which comprises the following steps: an inquiry unit and a response unit respectively exist in a distance measurement scheme, an inquiry signal and a response signal are sequentially sent, and the distance between the two units is calculated by using the round-trip time of the signals. The method mainly aims at the distance measurement problem under the high-dynamic motion condition, the two units do not need timing unification before distance measurement, the motion state of the two units on the connecting line is estimated through the navigation system, distance measurement of the two units is assisted, high-precision distance measurement can be achieved, and the distance measurement accuracy is improved. Meanwhile, the influence of electromagnetic interference on distance measurement and terminal viability is considered, the anti-interference capability of the distance measurement system is improved by setting pseudo-random time delay and an intermittent working mode, and the probability of being found can be obviously reduced in related applications.

Device for the continuous, automatic display of the current take-off and landing direction and the weather conditions at an airfield in the cockpit of aircraft, characterized in that the device consists of a receiver installed in an aircraft (16) with a display (18), a loudspeaker (21), the connection of the receiver to a two-way radio, a transmitter (14) whose associated transmitting antenna is located at the airfield in question, the measuring instruments (12) required for measuring the weather data at the airfield and optionally one or more cameras (15) for detecting obstacles on the active runway (20) of the airfield.

The present application provides various embodiments for a Bluetooth headset or other wearable communication device that pairs via a Bluetooth protocol with a two way radio (hardware or software), thereby enabling hands-free activation and deactivation of the paired two way radio. Intelligent speech control is enabled for the two way radio using a start phrase to trigger talk or transmit mode of the two way radio and an end phrase to trigger the receive or listen mode of the two way radio. Tones can be emitted when a mode is entered as feedback to the user as to which mode the two way radio has entered.