摘要:
Devices (1) for detecting problems in cable systems (2) comprising cables (20- 24) and loads (31-34) are provided with injectors (11, 12) for injecting first investigation signals into the cables (20-24), receivers (13) for receiving first reflection signals comprising first reflections of the first investigation signals from the cables (20-24), and processors (14). The processors (14) convert the first reflection signals into reflection values and determine differences between the reflection values and reference values. A firstly occurring significant difference of the differences is indicative for the problem, and a moment in time of the firstly occurring significant difference is indicative for a location of the problem. Previously received reflection signals comprising reflections from previously injected investigation signals that have been injected at moments in time at which there were no problems in the cable system (2) may be converted into the reference values.
摘要:
A wirelessly powered airfield lighting device (100) includes a base can (104) and a wireless power transmitter (124) disposed in the base can. The wireless power transmitter can wirelessly transmit power. The lighting device further includes an isolation transformer (120) disposed inside the base can. The isolation transformer is electrically coupled to and between the wireless power transmitter and a power source. The lighting device also includes a light fixture (102) that includes a base (110) disposed on and sealing the top end of the base can and that includes an electronics compartment (108). The light fixture further includes a wireless power receiver (114) disposed in the electronics compartment and that wirelessly receives power from the wireless power transmitter. The light fixture also includes a light source that receives power from the wireless power receiver.
摘要:
The present invention provides a system and method for automatic billing, managing, scheduling and power consumption controlling of charging process of electronic vehicle. The system is comprised of: street light poles which include: an electronic node, unique communication adapter and electronic socket for vehicles charging, a feeder pillar in the street comprising a concentrator for controlling and scheduling the power consumption of each street light pole in relation to charging process and a operation control center (OCC) for controlling and billing the power consumption of each street pole.
摘要:
Apparatuses (10) for reporting problems in cable systems comprising cables (101) and loads (111-115) connected to the cables via fuses (121-125) are provided with first circuits (1) for detecting the fuses (121-125) going from conducting to non-conducting modes or having reached non-conducting modes, second circuits (2) for changing impedances of the cable systems at locations near the apparatuses (10) by introducing one or more impedance elements at the locations, and third circuits (3) for bringing the second circuits (2) into activated modes in response to detection results from the first circuits (1). The second circuits (2) may comprise capacitors (4) and the third circuits (3) may comprise switches (5). Devices (20) at central locations for detecting the problems comprise monitors (21) for monitoring, per time-interval, first values of parameters of voltage/current signals or second values of factors depending on the voltage/current signals and comparators (22) for comparing values from different time-intervals with each other. The values change in response to changes in impedances of cable systems at locations near the apparatuses (10).
摘要:
A decision support unit for an outdoor lighting network (100) is disclosed. The outdoor lighting network includes a plurality of lighting units (LU1-LU8) grouped in a plurality of zones (30, 31). The decision support unit includes a controller (20) including safety monitor module (23) arranged to determine a safety factor for each of the plurality of zones (30, 31). The safety factor for each the plurality of zones 30, 31 is determined using at least one factor that represents an aspect that contributes to an assessment of each of the plurality of zones' safety. The decision support unit may also include a decision module (24) that determines a repair priority of a faulty lighting unit (LU1-LU8) using the safety factors determined by the safety monitor module (23).
摘要:
A remote lighting control system is for remote lighting control of a plurality of discharge lamps This system has the installed electronic ballasts of each discharge lamp. Each electronic ballast has a transceiver and a controller, the transceiver exchanges control information with the controller. The control command contains the identifiable information to specify one of a plurality of electronic ballasts. When the transmitter is received the control command, the transceiver transfers the received control command to other electronic ballasts further, Moreover, if the control command is the one that the identifiable information specifies own ballasts, the control information based on the received control command is send to own controller, and the controller control the discharge lamp. According to this system, when a lot of lamps was arranged the factory etc. comparatively widely, the user's remote control is not limited to the narrow scope.
摘要:
The invention relates to a method for addressing light fixtures (4), to a light fixture (4) for lighting and to a system for lighting. According to the invention, a plurality of light fixtures (4) is arranged within a region (1), for example a room, for lighting, and the area (2) around every light fixture (4) is detected by a camera which is associated with the corresponding light fixture (4), and the position of every light fixture (4) within the region (1) is determined with the aid of the data acquired by the cameras.
摘要:
A lighting control system includes: a management system performing a lighting control for each position and for each area of the position; a main control unit including a plurality of first to n-th main controllers which control the lighting for each position in accordance with the lighting control of the management system; a lighting control unit including a plurality of first to m-th lighting controllers which control the lighting for each area of a preset corresponding position in accordance with control of the first to n-th main controllers; and a lighting unit including a plurality of lamps which are divided for each position and for each area of the position in accordance with control of the first to m-th lighting controllers.
摘要:
Anordnung (50) zur Überwachung eines Satzes von parallel geschalteten LED-Strängen (12, 14), wobei jeder LED-Strang (12, 14) wenigstens eine LED oder eine Reihenschaltung mehrerer LEDs (16, 18) aufweist, wobei für jeden LED-Strang (12, 14) eine Vorschalteinheit (20, 22) mit einem Spanungseingang für eine Eingangsspannung (34) aus einer gemeinsamen Spannungsquelle und einem Stromausgang zur Versorgung des jeweiligen LED-Strangs (12, 14) mit Strom vorgesehen ist, wobei Mittel zum Detektieren einer Fehlfunktion in den LED-Strängen (12, 14) und zum Erzeugen eines Warnsignals, wenn eine Fehlfunktion festgestellt wird, vorgesehen sind und wobei die Mittel zum Detektieren einer Fehlfunktion zwischen die Spannungsquelle und die Vorschalteinheiten (20, 22) geschaltete Leistungserfassungsmittel (54, 56) zur Erfassung der Leistungsaufnahme der Vorschalteinheiten (20, 22) umfassen und dazu ausgebildet sind, ein Warnsignal zu erzeugen, wenn die Leistungsaufnahme von einem vorgebbaren Sollwert abweicht.
摘要:
The invention relates to a method for controlling a lighting and/or signaling system (1; 100), said system including at least: a first light module (10; 110) capable of carrying out part of a first regulatory lighting and/or signaling function; a second light module (20; 120) capable of carrying out part of a second regulatory lighting and/or signaling function other than the first function; and a third module (30; 130) capable of selectively carrying out at least one other part of the first function and at least one other part of the second function. The method comprises the following step: deactivating the emission of light by the first and second modules in the event the third module fails.