摘要:
A fail-safe wireless power transmission system having a transmitter, a receiver, a receiver functionality monitor unit, a transmitter functionality monitor unit and at least two sensors. The transmitter has at least one low emission state, and at least one high emission state, the high emission states having higher emissions and more complex safety systems. The transmitter may be precluded from switching from a low emission state to any high emission states upon detection of a receiver control unit malfunction, a transmitter control unit malfunction, a likelihood of human-accessible emission from the system greater than a predetermined level, or an inconsistency between results arising from at least two of the sensors. Two different methods of such preclusion may be used simultaneously or consecutively to improve reliability. A transmitter control unit analyzes data from the sensors, and performs calculations to determine if and what type of preclusion is needed.
摘要:
A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
摘要:
A receiver for receiving an incident beam of optical power from a remote transmitter over a predefined field of view, comprising an input lens having a high durability coating that can withstand domestic handling and contamination. Such a high durability coating may reflect a non-insignificant part of the light incident thereon. Behind the lens, there is fitted a retroreflector disposed such that it reflects that part of the incident beam traversing the lens, back through the lens to the transmitter. Reflections from the front surface of the lens impinge on one or more transparent beam catchers appropriately located, and equipped with energy conversion devices, such as photovoltaic cells, to convert light from the reflections of the incident beam into electricity. Additional energy conversion devices may be located inward of the lens, to collect and convert reflections from the inner surface of the lens, of light returning from the retroreflector.
摘要:
An optical system (100) for a locally powered optical communication network includes a first trunk terminal (110) emitting an optical signal (105, 105 c), a second trunk terminal (120) receiving the optical signal, a communication trunk (102, 102c), an intermediate unit (151) and a power source (160). The communication trunk is disposed along a floor of a body of water and couples the first trunk terminal to the second trunk terminal. The communication trunk transmits the optical signal from the first trunk terminal to the second trunk terminal. The intermediate unit is connected to the communication trunk between the first and second trunk terminals. The intermediate unit receives the emitted optical signal from the first trunk terminal, amplifies the received optical signal and sends the amplified optical signal to the second trunk. The power source powers the intermediate.
摘要:
Powering an active/splitter and providing information to ONUs to cause adjustments to ONU operating wavelengths. An ONU may identify the port of a splitter to which the ONU is connected in order to make wavelength adjustments. Various techniques enable the ONU to identify from which port the ONU is receiving signals, such as a splitter that splits signals to ONUs in a cable network and signals to one or more ONUs the port to which it is connected. The splitter may lack electrical power and may perform the signal function by harvesting optical power from optical power provided to the splitter. In this manner, an active splitter may behave passively with respect to powering components in the absence of electrical power.
摘要:
Embodiments disclosed herein include distributed antenna systems (DASs) supporting expanded, programmable communications, services distribution to remote communications service sector areas. In one embodiment, the DAS includes a first programmable switch for distributing downlink communications signals into one or more communications service sector sets. The DAS further includes a second programmable switch configured to distribute the one or more communications service sector sets to one or more remote communications service sector areas, A configurable extender module is also included to provide expanded routing of communications service sector sets in the DAS. In this manner, the DAS is programmable to allow any combination, of communications service sector sets and. expanded communications service sector sets from any number of different base stations to be routed to any combination of remote communications service sector areas and expanded remote communications service sector areas, based on capacity needs and capability of the DAS.
摘要:
Um bei einer Einrichtung zur Übertragung von Energie mittels Laserstrahlung umfassend eine Sendeeinheit, von welcher ausgehend sich ein gezielt auf eine Empfangseinheit ausgerichteter energieübertragender Laserstrahl ausbreitet, wobei die Sendeeinheit und die Empfangseinheit relativ zueinander so ausgerichtet sind, dass der von der Sendeeinheit ausgehende Laserstrahl stets auf die Empfangseinheit auftrifft, die Betriebssicherheit zu verbessern, wird vorgeschlagen, dass eine Hüllraumüberwachung vorgesehen ist, welche einen um den energieübertragenden Laserstrahl herum verlaufenden Hüllraum im Hinblick auf ein im Hüllraum vorhandenes Fremdobjekt überprüft und dass die Hüllraumüberwachung beim Erfassen eines derartigen Fremdobjekts in dem Hüllraum ein Abschaltsignal erzeugt, welches ein Austreten des energieübertragenden Laserstrahls aus der Sendeeinheit unterbindet.
摘要:
A receiver system (100) having at least one receiver(101)for receiving optical communications signals(103b)that encode or transmit information; wherein the receiver system (100) is adapted to produce one or more electrical signals(104)from the received optical signal(103b)and/or from ambient light(103a)such that the receiver system (100) is usable as a source of electrical power and the encoded or transmitted information from the received optical communication signal(103b)is recovered or recoverable from the electrical signal(s)(104). Embodiments of the invention also relate to a communications system(400)that further comprises one or more transmitters(406)and a device having the receiver systems(401), along with associated methods of using and producing. Particular embodiments relate to identification tags(1000)and user devices(300)having a display(301)that at least partially overlaps the receiver(s)(302).
摘要:
Es ist eine Sendeeinheit (110) zum leitungslosen Übertragen von Energie mittels eines gebündelten Laserstrahls (130) angegeben. Die Sendeeinheit weist ein Laserfaserbündel (112) mit einer Mehrzahl von Laserfasern, wobei jede Laserfaser ausgeführt ist, einen Laserstrahl abzustrahlen, eine Positionieroptik (114) zum Einstellen einer Abstrahlrichtung des gebündelten Laserstrahls, eine Feldlinse (116) und eine Primärlinse (118) auf. Die Mehrzahl von Laserfasern ist ausgeführt, jeweils einen Laserstrahl abzustrahlen, der die Positionieroptik, die Kollimatorlinse und die Primärlinse in dieser Reihenfolge durchdringt, so dass der von der Sendeeinheit abgestrahlte Laserstrahl gebündelt abgestrahlt wird. Ein besonders leistungsfähiges Gerät mit unbegrenzter Flugzeit und großem Einsatzradius wird erzielt durch den hybriden Antrieb mit Solarenergie und Laserenergie vom Boden und Zwischenspeicherung der Energie in Batterien.