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, an IR signal transmitter, a RF signal transmitter and a controller 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 pair of battery-powered radio transmitters are individually worn on the wrists of a machine operator, and two radio receivers are tuned to receive the signals broadcast by the radio transmitters, the first radio receiver being a proximity-sensitive device switching off the driving power to the machine whenever either radio transmitter comes within a preselected safe distance limit from the work-accomplishing region of the machine whereas the second radio receiver is a radio transmitter operating state-verifying device switching off the driving power to the machine whenever either or both of the radio transmitters fails to transmit its characteristic broadcast signal.
Abstract:
Die Erfindung bezieht sich auf eine Anordnung mit einem Aktuator (500), zumindest einer Sendeeinrichtung (100) zum Senden von Steuertelegrammen (T(K1), T(K2)), die jeweils einen vorgegebenen Steuerbefehl (SB) für den Aktuator enthalten oder als solche den vorgegebenen Steuerbefehl selbst bilden, mindestens zwei Empfangseinrichtungen (200, 300) zum Empfangen der Steuertelegramme und Erzeugen eines Steuersignals (ST1, ST2) für den Aktuator, und einer die Empfangseinrichtungen mit dem Aktuator verbindenden Entscheidereinrichtung (400), die ein Umsetzen der Steuersignale der Empfangseinrichtungen durch den Aktuator mittels eines Freigabesignals ausschließlich dann erlaubt, wenn von allen Empfangseinrichtungen oder zumindest einer vorgegebenen Mindestzahl an Empfangseinrichtungen das Steuersignal vorliegt, wobei die Sendeeinrichtung derart ausgestaltet ist, dass sie den vorgegebenen Steuerbefehl jeweils an jede Empfangseinrichtung mit einem empfängerindividuellen Steuertelegramm übersendet, wobei jedes empfängerindividuelle Steuertelegramm jeweils mit einer Kontrollangabe versehen wird, die die fortlaufende Telegrammnummer des jeweils gesendeten Steuertelegramms in verschlüsselter oder unverschlüsselter Form angibt, und wobei jede der mindestens zwei Empfangseinrichtungen derart ausgestaltet ist, dass sie ein empfangenes Steuertelegramm anhand der Kontrollangabe als für sie gültig akzeptiert, wenn die Kontrollangabe eine Telegrammnummer angibt, die der empfängerseitig erwarteten fortlaufenden Telegrammnummer entspricht, und im Falle des Empfangs eines gültigen Steuertelegramms das Steuersignal für den Aktuator jeweils für eine vorgegebene Zeitdauer erzeugt.
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:
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:
The invention relates to a method, device and the use thereof for wirelessly transmitting digital signals and for wirelessly controlling a machine. More specifically, the invention relates to the wireless transmission of digital signals (3), especially for controlling a production machine (8). During the transmission process, it is important that safety signals that are use to control safety functions, such as "emergency stop" are transmitted reliably, i.e. without faults and rapidly. Cables can be used to transmit the signals reliably, however this only permits a limited working radius and may also cause a person to trip. According to the invention, the disadvantages can be avoided by wirelessly transmitting the digital signals (3) in parallel, in the form of identical data packets (9a-9d), via at least two channels (4a-4d) that are logically independent of each other. It is particularly advantageous if a transmission method corresponding to the DECT standard is used. The operator of a machine (8) can move completely freely while using a hand-held device without being restricted by a cable connection. As a result, he/she has a considerably larger working radius and is not at risk of tripping over a cable and injuring him/herself. The greater the number of channels (4a-4d) that are independent from each other, the more reliable the transmission. Experiments using for independent channels (4a-4d) are produced excellent results in terms of the speed and reliability of transmission of the digital signals (3).
Abstract:
A key fob includes a power amplifier including an output having an output impedance. A radio frequency antenna connected to the power amplifier output represents a first load impedance to the power amplifier output in a space substantially free of interference for radio frequency transmissions, and a second load impedance to the power amplifier output when a hand of a user is capacitively coupled to the antenna. The difference between the second load impedance and the output impedance of the power amplifier is less than the difference between the first load impedance and the output impedance.
Abstract:
A method and a device for determining what commands can be used to operate a receiving device (110) when a user operates a control device (105). After such a determination is made, a first command is transmitted to the receiving device from the control device (105) over a first communication interface and a second command is transmitted to the receiving device (110) over 5 a second communication interface. The communication interface that is selected depends on whether the control device can control the operation of the receiving device (110) with such a command directly or whether an intervening device (130/140) is required to translate the command from a first format to a second format.
Abstract:
A remote control for controlling a controllable device, including: an infrared transmitter that transmits information via infrared light; a wireless transceiver that transmits information by wireless communication via radio waves; a receiver that receives, from a user, control information to be transmitted to the controllable device; a wireless communication determination unit configured to determine whether wireless communication between the wireless transceiver and the controllable device is possible; and a control unit configured to select, based on a result of the determination by the wireless communication determination unit, one of the infrared transmitter and the wireless transceiver for transmission of the control information to the controllable device, and cause the selected one of the infrared transmitter and the wireless transceiver to transmit the control information to the controllable device.