Method and device for lighting control in space inside of room
SUBSTANCE: lighting control in space method includes the steps of determining the orientation of daylight-blocking element and/or the lighting device 301 and automatically correcting at least one characteristic of the daylight-blocking element and/or the lighting device at least partly based on the determined orientation (305). The method may additionally or alternatively include the steps of determining the likely conditions of daylight at some time in the future and beginning to correct at least one characteristic of the daylight-blocking element and/or the lighting device before a certain moment in the future (202/203). Also, elements of daylight-blocking element and/or lighting devices are proposed.
EFFECT: providing the possibility of one or more aspects of lighting control methods.
14 cl, 4 dwg
SUBSTANCE: invention is related to the sphere of electric engineering and intended for usage at sites of underground operations. The intrinsic safe luminaire comprises a body with at least one mounted light source that operates at low voltage, one device for light source control and one electric accumulator. The control device is designed with a potential selective light source with electric power, which is supplied from the electric accumulator or from an external electrical circuit, and with potential actuation of a light source by electrical power from the electrical accumulator when the external electric circuit is subjected to high current load and the electric accumulator is charged through the external electrical circuit if the external electrical circuit is loaded by low current.
EFFECT: enlargement of a range of technical means.
6 cl, 2 dwg
FIELD: physics, optics.
SUBSTANCE: invention relates to a device for driving a light-emitting diode (LED), an apparatus having said device and a method of driving a LED. In the first object, the disclosed device comprises an output stage for feeding current to the LED, wherein the current has an average value and a peak value, wherein the peak value, divided by the average value, forms a ratio, and an input stage for receiving a signal from a power supply unit, wherein the input stage includes a tool, having a resonance circuit for reducing the ratio through a frequency component to the signal or adaptation of the frequency component of the signal, which improves efficiency of the LED. According to the second object, in the method on the output stage, current is fed to the LED, wherein the current has an average value and a peak value, wherein the peak value, divided by the average value, forms a ratio, and an input stage for receiving a signal from a power supply unit, wherein the input stage includes a tool, having a resonance circuit for reducing the ratio by adding a frequency component to the signal or adaptation of the amplitude of the frequency component of the signal, which improves efficiency of the LED.
EFFECT: designing a device for driving a LED with high efficiency.
13 cl, 4 dwg
SUBSTANCE: device comprises a light diode matrix connected via a control switch to a source of voltage of stabilised alternating current. The light diode matrix comprises one or several pairs of back-to-back connected branches from serially connected light diodes arranged on a common heat-removing substrate. The substrate is connected with an inlet of a temperature sensor, the output of which is connected to one of inlets of a control unit, which opens the control switch whenever the substrate temperature exceeds the specified level and closes it whenever temperature reduces to the specified level. Temperature is stabilised with accuracy determined by the value of discrecity of intervals n of a modulating signal. By switch opening it is possible to stop supply of voltage to light diodes and thus to reduce temperature of their heating. Due to stabilisation of light diode module substrate temperature, reliable operation of light diodes is ensured under effect of various destabilising factors.
EFFECT: higher reliability and longer life of a device.
FIELD: electrical engineering.
SUBSTANCE: device contains a LED unit the power leads whereof are connected to the transformer secondary winding designed in the form of a heat-eliminating plate passed inside the core. The transformer primary winding is linked to a stabilised AC power supply. The LED unit consists of several pairs of anti-parallel connected LEDs. Installed on one of the plate sides projecting outside the transformer core are the anodes of LEDs of one switching-on direction, on the other such sides - those of the other. The LEDs' cathodes are respectively connected to the anodes of the opposite direction LEDs. With a large LEDs number, several identical transformers are used. In this case the primary windings of all the transformers are connected in series while the heat-eliminating plate passed through the cores of all the transformers represents their common secondary winding 2. Implemented in the device is the possibility of installation of numerous LEDs anodes on a common plate with simultaneous provision for identical currents flowing through the LEDs and uniform heating of the surface of the heat-eliminating plate and of the product as a whole.
EFFECT: enhanced efficiency of the unit LEDs cooling, improvement of weight and dimension indices and prime cost reduction.
2 cl, 3 dwg
SUBSTANCE: device has a group of light-emitting diodes of different colours, including white. The disclosed device has apparatus for controlling light characteristics, a video capturing device with a camera, and apparatus for analysing and controlling light characteristics. The device also has an optical part which facilitates uniform distribution of brightness and illumination on the working surface and optimum blending of the radiation of red, blue and green light-emitting diodes. A liquid-crystal screen is used to set initial characteristics and control operating modes.
EFFECT: invention enables automation of changing the colour hue and brightness of radiation based on radiation colour coordinates by assigning circadian and circannian cycle of a person in a given range of geographic latitude and longitude, and monitoring and regulating the required level and uniformity of distribution of brightness and colour grade for the operator-assigned type of visual activities using the control device.
SUBSTANCE: lamp includes inverter made in the form of frequency converter connected to in-series resonant circuit which consists of capacity and inductance of primary winding of resonant high-frequency step-up transformer with core or without core, high-potential output of high-voltage winding of transformer is connected to single-wire line; line includes n in-series connected primary windings of high-frequency step-down transformers (n=1, 2, 3…k); the last of primary windings is connected to natural capacity in the form of insulated conducting body, and secondary winding of each high-frequency step-down transformer is connected to bridge rectifier to the diagonal of bridge of which m light emitting diodes (m=1, 2, 3…r) are connected in series or l light emitting diodes (l=1, 2, 3…p) are connected in parallel. In the other version of LED lamp containing inverter which is made in the form of frequency converter and connected to in-series resonant circuit which consists of capacity and inductance of the first winding of resonant high-frequency step-up transformer with core or without core; high-potential output of high-voltage winding is connected by means of single-wire line to natural capacity in the form of insulated conducting body; to single-wire line there in series connected are n bridge rectifiers (n=1, 2, 3…k); to diagonal of each rectifier there connected in parallel are l light emitting diodes (l=1, 2, 3…p) or in-series m light emitting diodes (m=1, 2, 3…r), and number of m in-series connected light emitting diodes, n bridge rectifiers and l parallel connected light emitting diodes are connected to amplitude of current il and voltage Ul of single-wire line with the following ratios Ul > nUbr; Umn > kULED; il > iLED, where Ubr - output voltage of bridge rectifier; ULED - voltage of light emitting diode; iLED - current of light emitting diode.
EFFECT: reducing energy losses and improving operating reliability of lamp.
3 cl, 3 dwg
FIELD: motors and pumps.
SUBSTANCE: invention relates to methods and devices for operation of electrojet plasma engine. Method includes closure of power supply switch and feeding of voltage from power supply for anode and cathode, closure of launching switch and creation of current by at least in one coil of electrojet plasma engine and in connected in turn into electric circuit motor of winding of electro-valves for feeding of actuating medium into anode and cathode, time delay and following breaking of launching switch, formation of high-voltage pulse between cathode and igniter electrode, and ignition of launching discharge between igniter electrode and cathode, which then initiates ignition of main discharge between anode and cathode, with feeding of voltage of its high-voltage pulse simultaneously applied between anode and cathode, and also, through blocking capacitor, between igniter electrode and cathode, and coil is additionally used in the capacity of field magnet and closure of launching switch is implemented for time of its charging, which is taken into account in time delay before disconnection of launching switcher.
EFFECT: invention is directed to reliability growth of electrojet plasma engines and decreasing of its mass.
18 cl, 6 dwg
SUBSTANCE: photodiode illuminator contains a voltage converter, diode bridge rectifier, capacitor filter and photodiode, which are placed on a printed-circuit board. The board is located inside a transparent body, made with current-carrying leads. The body is made in the form of a pipe, and the photodiodes are uniformly distributed throughout the length of the printed-circuit board. Illuminator proposed is a finished product and can be used in bodies of lamps instead of daylight lamps and incandescent lamps.
EFFECT: expanding the functional capabilities.
7 cl, 4 dwg
SUBSTANCE: device has protective assembly, mounted between transformer of electric energy and parallel/serial chains of emitting elements with current limiters. Current limiter is made in form of serially connected preventer, inductiveness coil, force key, control input of which through resistor is connected to output of voltage detector. Inputs of voltage detector and output of force key are connected to outputs of electric energy transformation device, which additionally has varistor, mounted in parallel between rectifier and power voltage stabilizer.
EFFECT: higher reliability.
3 cl, 3 dwg
FIELD: microwave-operated lighting fixtures and their power supplies.
SUBSTANCE: proposed power supply designed to feed electrodeless microwave-operated lighting fixture has high-voltage transformer that functions to transform standard ac power into high-voltage ac power and to supply this high-voltage ac power; voltage doubling unit used for converting high-voltage ac power into high-voltage dc power, for doubling dc current frequency, and for supplying dc power at high frequency. Power is supplied to magnetron at higher frequency for eliminating flicker effect.
EFFECT: enhanced stability of light emitted into environment.
4 cl, 7 dwg
SUBSTANCE: invention is referred to the sphere of lighting systems and optical receivers, and more specifically to the detection of data introduced into a light flux (output) of lighting systems. The invention suggests a system for the method detecting the first repeated sequence out of N symbols included into the first code, at that the first code is introduced into the light flux of the first light source of the lighting system, wherein the sequence contains at least N frames, and each frame out of at least N different frames is received with the total time of exposure containing one or more instants of the exposure, at that in each frame out of N different frames one or more instants of the exposure are in different time positions in regard to the first repeated sequence out of N symbols. The system contains a chamber to receive sequences of scene images through certain structures of an open/close state of the gate and a processing module to process the received sequence of images and to detect the repeated sequence out of N symbols.
EFFECT: development of the system for detecting data introduced into the light flux with high-frequency invisible modulation using standard commercial cameras in mobile telephones or web-cameras.
15 cl, 12 dwg
SUBSTANCE: invention is referred to interactive illumination, specifically to control and creation of light effects such as regulation of light scenes based on position indication received from the input device, and more specifically to system and method for interactive illumination control in order to control and create light effects using position indicator. The main idea of this invention consists in provision of control over interactive illumination by combined indication of a position and approach of controlled light effects for illumination control in order to perfect creation of light effects such as regulation of light scenes, in particular scenes with large and heterogeneous infrastructures of illumination. One of the invention embodiments is referred to interactive illumination control system (10), which comprises interface (12) intended for receipt of data (14) specifying actual position (16) in real environment from input device (18) adapted for detection of position in the real environment by position pointing and receipt of data related to light effect (32), which is desired in the real position, and light effect controller (20) intended to convert actual position into virtual-type position of the real environment and to identify light effects available in virtual position.
EFFECT: control of interactive illumination and creation of light effects.
14 cl, 7 dwg
SUBSTANCE: illumination device comprises a metal element 1, light-emitting device 2, on-off switch 3, low-voltage source 4 (accumulator-based), resistor 5, the first and second diodes 6, 7. An anode of the first diode 6 and a cathode of the second diode 7 are jointed and connected to the metal element 1. The metal element 1 should be rather made of tin with the surface area of at least 20 square centimetres. Additional charging of accumulators for a low-voltage source 4 feeding the light-emitting device 2 is made by energy generated during the rectification of electric oscillations occurring as a result of the heat motion of the metal element 1 particles.
EFFECT: development of a universal mobile portable and durable energy-saving illumination device with a long-term continuous operation.
5 cl, 1 dwg
SUBSTANCE: invention relates to lighting engineering. Systems, networks, devices and methods for development, implementation and sharing of lighting circuits between controllable lighting networks are described. The network (101, 601, 701, 801, 808) according to the invention keeps the lighting circuits developed for network in the remote data storage (802). Other networks (301) address remote data storages for selection of existing circuits for implementation. Also the systems, networks, devices and methods for sharing by user choice between the controllable lighting networks are described. The networks according to the invention can get access to the shared remote data storage (112) for identification of user preferences at detection of a user by sensors in the network. In essence, individual lighting networks can use known user preferences or trained behaviours and environment conditions for more efficient adaptation to such behaviour, preferences or conditions.
EFFECT: improvement of efficient control of lighting.
15 cl, 13 dwg, 1 tbl, 1 ex
SUBSTANCE: invention is referred to lighting devices and control of the lighting devices operation. The result is attained due to the fact that each node out of a multitude of electric fixture nodes in the group of electric fixture nodes connected electrically may be used at a rated power level of a device; current consumption may be detected at least in the tested node of lighting fixtures out of the nodes of lighting fixtures; and the degree of reduced power for each node of lighting fixtures may be defined as a function of current consumption in the tested node of lighting fixtures.
EFFECT: invention ensures selective use of a group of lighting fixture nodes at a reduced power level in order to prevent an overload of the supply circuit and/or overload of one or more nodes of lighting fixtures in the group of the lighting fixture nodes.
21 cl, 3 dwg
SUBSTANCE: invention refers to lighting engineering. The lighting system (100) contains many lighting fixtures (101a-d). Each lighting fixture is made with possibility to transmit the identification code ID in the emitted light. To guarantee sufficient registration of the identification codes during selection using the selection device (120) the system additionally contains a control unit (130), made with possibility to identify any lighting fixture which rated excitation is equal pr below the minimum pre-set value or is equal or above the maximum pre-set value. The control unit sets (or commands to excitation system to set) the rated excitation value of such identified lighting fixture to the set value to achieve the appropriate set light output of the lighting fixture ensuring signal sufficient to transmit the identification code ID.
EFFECT: increased efficiency of the light sources control.
11 cl, 7 dwg
SUBSTANCE: invention relates to lighting units. The light source 1 has LED module 2, at least, with one series circuit of light-emitting diodes. Terminals of the module 2 are connected to terminals of the power supply 5 which is stabilised by the output current. The power of the module 2 is greater than the power of the light source, and on separate light-emitting diodes the bridging pieces 6 are installed. Light-emitting diodes can be placed along the module surface and are connected in several series circuits, connected to each other in parallel, so that each light-emitting diode of one circuit has corresponding light-emitting diodes symmetric to it in other circuits, their similar terminals are unipotential and can be connected to each other. The light source power is regulated by switching on the ready LED module, without any changes in the light source.
EFFECT: simplification of regulation of the light source power.
5 cl, 4 dwg
FIELD: physics, control.
SUBSTANCE: invention relates to controlling the level of light in building illumination. The result is achieved due to that the level of light is controlled by a control system (2), which is operably linked to at least one interior sensor (3) for detecting the interior level of light; at least one electric light control device (4); at least one window drapery control device (5) for controlling the allowable level of daylight; and a processing unit (7) for processing given control values, which include a given value of the interior level of light. The level of electric light and the allowable level of daylight are controlled concurrently by the electric light control device and the window drapery control device.
EFFECT: providing an automatic power-saving system for controlling building illumination.
10 cl, 10 dwg
SUBSTANCE: invention relates to lighting engineering. Lighting device (2) is made with possibility of light quality data inclusion in the light emitted by the lighting device. The light quality data relate to state of the lighting device (2), for example to end of its k service life. Light can be detected by the control device (3) being external for the lighting device (2). The control device (3) can further help in determination of the lighting device (2) state, as result the current maintenance operations for the lighting device (2) can be made. So, the servicing personnel can replace the lighting devices and/or light sources requiring maintenance according to state indication of each lighting device before any lighting device of the system will achieve its service life.
EFFECT: increased quality of the emitted light due to more accurate determination of the light source state.
8 cl, 5 dwg
SUBSTANCE: LED radiator circuit is added by N keys and the ring impulse generator having N outputs, each of which is connected to the control inputs of keys, and cathodes of each of N light-emitting diodes through power electrodes of keys are connected to the negative output pole of the driver. The use of keys 4.1, 4.2, … 4.N and the ring impulse generator 3 ensures reliable functioning of the offered LED radiator when using only one driver that will significantly reduce its cost.
EFFECT: improvement of reliability of LED radiator and reduction of its cost.
SUBSTANCE: device has block for connection to AC current source, converter for forming a DC current source and light diode group, consisting of multiple light diodes. Light diode group is provided with block for prior telling of service duration, including counter for measuring power-on period on basis of frequency of AC current source, integration device for power feeding, which is measured by counter, and for recording integrated value in energy-independent memory device and device for controlling power feeding mode for controlling light level of diodes in different modes, including normal lighting modes. Prior messaging block is meant for integration of power-on period for output of forwarding message, indicating approach of service duration end.
EFFECT: broader functional capabilities.
10 cl, 2 dwg