Abstract:
A communications system for transmitting and receiving remote control messages in an electronic remote control system. The present communications system uses a remote control message protocol which is particularly suitable for transmitting RF remote control messages with IR remote control messages in a time multiplexed fashion, wherein the RF remote control messages are transmitted during the pause intervals between IR remote control message transmission intervals. The present remote control message protocol (80) includes a start sequence (82), comprising a MARK pulse and a SPACE of about equal duration, followed by a plurality of data fields. Each data field ends with an End of Field marker (85) and the remote control message ends with an End of Message marker (87). The plurality of data fields comprises an addressing data field (89) for specifying the destination device, a security code data field (89) for allowing a specific remote control transmitter to control a specific destination device, a status field (88) for specifying various status codes associated with the remote control message, a keycode field (90) for carrying the remote control message payload, and a checksum field (92) for verifying the transmission integrity of the remote control message. A remote control message based on the present message protocol may be expanded to include additional data fields and to expand pre-existing data fields.
Abstract:
An apparatus and a method for providing remote control capability involves transmitting IR and RF signals in a time multiplexed manner. The present apparatus comprises an input device (20), and IR signal transmitter (16), a RF signal transmitter (17) and a controller (14) operatively coupled to the input device, the IR signal transmitter and the RF signal transmitter. The controller generates and applies the IR and RF signals to the respective signal transmitters in time multiplexed manner. The IR and RF signals may be transmitted using different protocols without significantly increasing the computing capacity of the controller as compared to a controller of a remote control device which transmits only one type of remote control signal.
Abstract:
A method and an apparatus for connecting with a controlled smart device, a computer program and a recording medium are disclosed, which enable a more proper manner to be selected for establishing a connection with a smart device. The method comprises: obtaining wireless communication schemes, each of which allows connecting with the controlled smart device currently; determining a first wireless communication scheme with a highest priority among the wireless communication schemes, according to priorities corresponding respectively to the wireless communication schemes; and sending a connecting request to the controlled smart device, by adopting the first wireless communication scheme with the highest priority.
Abstract:
Le drone comprend M antennes, avec notamment deux antennes déportées (30) situées symétriquement aux extrémités de deux bras (22) de liaison aux blocs propulseurs (24), et une antenne ventrale (32) sous le corps de drone (20). La transmission radio est opérée simultanément sur N voies RF semblables, avec 2 ≤ N
Abstract:
To improve the security of an automation system (10) for a movable barrier (12), comprising a central control unit (20) with at least one wireless transceiver (24) able to send and receive radio signals, and one or more peripheral devices (30) each with at least one wireless transceiver (30) able to send and receive radio signals, the central and / or a or each peripheral device is adapted to transmit at least two signals with diversity techniques.
Abstract:
Disclosed are methods, devices, systems and computer program products for communicating between at least one unit of a therapeutic fluid dispensing device and at least another unit of the dispensing device. The method includes performing a determination whether a first frequency can be used to transmit a message related to operations of the dispensing device, and transmitting the message based on the determination.
Abstract:
A multivariate environmental sensing system with redundant transmission pathways with a network of nodes detecting environmental conditions and processing a transmissible signal. Nodes use predetermined criteria to make periodic detections, maintaining a low power state between detections. Power is conserved by deciding whether detections are transmitted immediately, or may be stored for periodic transmission. The nodes power up and immediately transmit urgent detections, storing routine detections for delayed batch transmission. Nodes may transmit signals received from other nodes, passing along signals received from more distant nodes. Transmission may have a predetermined pattern, but the system alters this pattern if there is disruption to the system or pattern. Gateways process data from nodes and pass data to other gateways, on an immediate or deferred basis, to a control center, where data is analyzed. Control centers transmit programming instruction to the gateways and nodes in a retrograde fashion along the transmission pathways.