Patent
Wireless sensor system
Andre Albsmeier,Wolf-Eckhart Bulst,Klaus Pistor,Frank Schmidt,Oliver Sczesny +4 more
- 01 Oct 2002
65
TL;DR: In this paper, a sensor system has a least one voltage generator for conversion of non-electrical energy to electrical energy, and at least one energy store is connected downstream from the voltage generator.
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Abstract: A sensor system has a least one voltage generator for conversion of non-electrical energy to electrical energy. At least one energy store is connected downstream from the voltage generator. At least one voltage converter is connected to the energy store such that its output signal is suitable for operation of a processor controller. At least one sensor is provided, and at least one transmitter enables wire-free transmission of transmission messages produced by the processor controller and containing at least one measured value from the at least one sensor. A timer circuit is triggered as a function of a voltage level of the at least one energy store, and activates the sensor system to transmit at least one transmission message after a specific time interval.
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Citations
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12
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TL;DR: In this article, the authors present RFID devices and applications with particular reference to library materials such as books, periodicals, and magnetic and optical media, and use them in connection with items associated with an RFID tag, and optionally a magnetic security element.
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Marlin H. Mickle,Christopher C. Capelli,Harold Swift +2 more
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TL;DR: An inherently tuned antenna has a circuit for harvesting energy transmitted in space and includes portions that are structured to provide regenerative feedback into the antenna to produce an antenna which has an effective area substantially greater than its physical area as discussed by the authors.
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Method and apparatus for controlling and determining the status of electrical devices from remote locations
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Patent
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Ronald G. Canada,James W. Pearce,James C. Robinson +2 more
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TL;DR: In this paper, the authors describe an apparatus consisting of one or more machine monitors which attach to multiple machines to sense a physical characteristic of the machines and produce wireless transmissions corresponding to the sensed characteristic, and a command station which receives the transmissions from machine monitors and processes the information to give an indication of the condition of the machine.
289
Patent
Wireless ecg system
Rud Istvan,Bill Gregory,Kenneth S. Solovay,David Paul Chastain,John David Gundlach,Nicholas C. Hopman,Daniel L. Williams,Franco Lodato,Michael Salem +8 more
- 16 May 2003
TL;DR: In this paper, a wireless monitoring system for detecting and transmitting physiological data is presented, which detects physiological data relating to a patients cardiac activity and respiration rate and transmits the data to a remote base station via telemetry.
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