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202 results about "Navigation light" patented technology

A navigation light, also known as a running or position light, is a source of illumination on a vessel, aircraft or spacecraft. Navigation lights give information on a craft's position, heading, and status. Their placement is mandated by international conventions or civil authorities. Navigation lights are not intended to provide illumination for the craft making the passage, only for other craft to be aware of it.

Light source assembly for vehicle external lighting

An aircraft light assembly comprises a light apparatus configured to be supported in a space on the body of an aircraft. The apparatus has one or more light emitting diodes (13) generating visible light and an outer structure overlying the LEDs. The outer structure includes a light transmission portion through which visible light from the LEDs can pass, and a metallic portion with an outer surface exposed to the external airflow. A heat-transmitting connection thermally links the LEDs to the metallic portion so that heat from the LEDs flows to the outer surface and is dissipated to the external airflow. The light assembly is configured to be secured in a conventional socket for an incandescent navigation light bulb and to receive the electrical current supplied thereto by the aircraft electrical system. Civilian applications of the unit have only visible LEDs. When the unit is for a military aircraft, it has electric circuitry connected with a visible light source and an IR light source, and the electric circuitry is configured to process the input current from the socket and based thereon operate in either a visible mode or covert IR mode. Where the current is in one electrical state, such as for example a certain voltage, the electric circuit sends power only to the visible light source. When the current is in a different electrical state, e.g., a different voltage level, the circuitry sends power only to the IR source, and no visible light is emitted. Different input current voltages or characteristics are also used to cause the IR emitter to flash in various patterns that can be programmed into the unit. All control may be accomplished over a single pair of wires, as in existing systems that do not have IR mode capability. To upgrade existing aircraft, light source units a shaped to fit in the apertures for existing lenses over incandescent navigational fixtures.
Owner:L 3 COMM CORP

Light source assembly and methods for aircraft external lighting

An aircraft light assembly comprises a light apparatus configured to be supported in a space on the body of an aircraft. The apparatus has one or more light emitting diodes (13) generating visible light and an outer structure overlying the LEDs. The outer structure includes a light transmission portion through which visible light from the LEDs can pass, and a metallic portion with an outer surface exposed to the external airflow. A heat-transmitting connection thermally links the LEDs to the metallic portion so that heat from the LEDs flows to the outer surface and is dissipated to the external airflow. The light assembly is configured to be secured in a conventional socket for an incandescent navigation light bulb and to receive the electrical current supplied thereto by the aircraft electrical system. Civilian applications of the unit have only visible LEDs. When the unit is for a military aircraft, it has electric circuitry connected with a visible light source and an IR light source, and the electric circuitry is configured to process the input current from the socket and based thereon operate in either a visible mode or covert IR mode. Where the current is in one electrical state, such as for example a certain voltage, the electric circuit sends power only to the visible light source. When the current is in a different electrical state, e.g., a different voltage level, the circuitry sends power only to the IR source, and no visible light is emitted. Different input current voltages or characteristics are also used to cause the IR emitter to flash in various patterns that can be programmed into the unit. All control may be accomplished over a single pair of wires, as in existing systems that do not have IR mode capability. To upgrade existing aircraft, light source units a shaped to fit in the apertures for existing lenses over incandescent navigational fixtures.
Owner:L 3 COMM CORP

Wireless and underwater sound communication buoy

The invention provides a wireless and underwater sound communication buoy, which is of a cordwood-type structure and comprises a VHF (Very High Frequency) antenna, a GPS (Global Positioning System) antenna, an antenna watertight base, a navigation light, a wireless support rod upper section, a hard polyurethane foam body, an antenna support rod lower section, a watertight electronic instrument cabin, a water-resistance load-bearing cable, a receiving/transmitting combined transducer and lead fish in sequence from top to bottom. The wireless and underwater sound communication buoy is characterized by further comprising a wireless communication module, an underwater sound communication module, a comprehensive controlling/processing module and a battery/power supply management and control module; the wireless communication module is used for realizing functions of a wireless communication data link layer and a physical layer; the water sound communication module is used for realizing the functions of an underwater sound communication data link layer and the physical layer; the comprehensive controlling/processing module is used for realizing the functions of a wireless and underwater sound communication network layer and an application layer and simultaneously realizes whole control on the buoy; and the battery/power supply management and control module is used for controlling, maintaining and managing a power supply.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

System and method for controlling distributed airport navigation light

The invention discloses a system and method for controlling distributed airport navigation light. The system comprises a scene movement state sensor, a control tower monitor, an intersection controller, a coordination controller, a straight line section controller and a light signal PLC (Programmable Logic Controller) output interface which are connected for networking through a redundant Ethernet. The method comprises the following steps of: converting a position signal of a scene moving target into a state signal of the scene movement by the control tower monitor; sending the state signal to a light controller; encoding control instructions generated by the controller; and transmitting the control instructions to a specified light station through the redundant Ethernet so as to control a dimmer of each controlled target. In the invention, the effective guidance of airport scene movements under all-weather conditions is realized; the opening state of the scene light is automatically controlled through the light controller, the global optimum movement countermeasure advice is provided in real time, and the efficient and accurate guidance on moving target gliding and ground traffic is realized.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Navigation-light light distribution rapid detection system and detection method

ActiveCN107505119ASolve technical problems that cannot be tested by traditional methodsAvoid errorsTesting optical propertiesIlluminanceNavigation light
The invention belongs to the technical field of navigation light test, and specifically relates to a navigation-light light distribution rapid detection system and detection method. The navigation-light light distribution rapid detection system includes an optical screen, an illumination detection apparatus and a controller, wherein 8 tracks which are arranged in a Union-Jack shape are arranged on the optical screen; one surface, with the tracks, of the optical screen, faces the illuminating surface of a navigation light; during the detection process, the arranged center position of the tracks aligns at the center point of the illuminating surface of the navigation light, and one end, being far away from the center position, of each track, extends to the outside of the illumination area; the illumination detection apparatus includes first probes distributed on each track of the 8 tracks and a second probe at the center position; the controller controls the first probes to move on each track, detects the illumination at different positions, and controls the second probe to detect the illumination at the center position; and according to each illumination detection data and each detection position, the light intensity conditions, at different angles, of the navigation light can be determined. The navigation-light light distribution rapid detection system and detection method can be used for light test after the navigation light is installed and fixed, and enable the detection efficiency to be relatively higher and detection to be relatively more comprehensive.
Owner:FUDAN UNIV

Plate bottom flexural-tensile stress monitoring system and method for existing runway surface structure

The invention discloses a plate bottom flexural-tensile stress monitoring system and method for a existing runway surface structure. The plate bottom flexural-tensile stress monitoring system for theexisting runway surface structure comprises a plurality of fiber grating sensors installed in line light hoes and grounding strip light holes of the runway, an armored fiber, a main optical cable 4, afiber grating demodulator, a main control terminal, a deconcentrator, fiber jumpers and a temperature compensation grating sensor. The plate bottom flexural-tensile stress monitoring system and method for the existing runway surface structure uses a real plane load to act on the runway surface by means of the fiber grating sensors arranged in airway navigation light holes of an airport runway, and collects the grating refracted light wavelength at the position of the measuring point, so as to realize the measurement of the plate bottom flexural-tensile stress of the airport runway; therefore,not only the monitoring and early warning of airport runway surface damage can be realized, but also the problems such as damage to the existing runway surface and suspending air service for detection can be avoided; and the detection accuracy is high and the speed is fast, which has broad application prospects.
Owner:CIVIL AVIATION UNIV OF CHINA

Controller for marine LED navigation light and signal light

The invention relates to a controller for a marine LED navigation light and a marine LED signal light. The controller comprises: a central control unit, which is connected with the following modules; an LED navigation light and signal light control signal input module, which is provided with control switches whose number is the same as the number of loops of the LED navigation light and the LED signal light; an LED navigation light and signal light driving module, which is used for outputting driving voltages for the LED navigation light and the LED signal light; an LED navigation light and signal light working condition detection module, which is used for detecting working conditions of the LED navigation light and the LED signal light and outputting working condition data to the central control unit; an LED navigation light and signal light working condition display module, which is provided with pilot lamps whose number is the same as the number of loops of the LED navigation light and the LED signal light; and a 485 communication module, which is used for communication with an upper computer. According to the invention, the controller is matched to a marine LED navigation light and a marine LED signal light and is especially designed and manufactured for maritime application; and the controller can be used directly in maritime application or on ships. In addition, paths of the controlled LED navigation light and the LED signal light can be increased or reduced according to usage requirements; and a plurality of sets of controllers can be used by combination.
Owner:CSIC YUANZHOU BEIJINGTECH
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