68results about How to "Sufficient light intensity" patented technology

The invention discloses a forest fire pre-warning method and system based on deep learning and belongs to the field of firefighting safety. The method comprises: S1, allowing an unmanned aerial vehicle to sense, in real time, temperature and humidity information of a driving area, taking a forest image of the driving area, transmitting the forest image to a ground station; synchronously transmitting locational information to the ground station; S2, judging fire pre-warning according to the temperature and humidity information, and transmitting a fire pre-warning signal to the ground station; S3, allowing the ground station to receive the fire pre-warning signal, and using a deep learning algorithm to process the forest image to obtain whether a fire is about to occur or whether fire results are present; S4, transmitting fire information to a forest management center. The temperature and humidity information is sensed and subjected to comparison; visual judgment is made on chances for afire to occur; if chances for the fire to occur are great, the forest image is processed via the deep learning algorithm; fire pre-occurrence and post-occurrence conditions can be precisely recognized; it is convenient for relevant personnel to accurately acquire fire conditions in the first place.

The present invention relates to a light emitting apparatus comprising at least one light emitting device and a support mechanism. The light emitting device includes a transparent substrate which light can pass through; at least one LED chip emitting light omni-directionally is disposed on one surface of the substrate, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. The support mechanism is coupled to the light emitting device; a first angle is formed between the substrate and the support mechanism. According to the present invention, the light emitting apparatus using LED chips can provide sufficient lighting intensity and uniform lighting performance.

An LED illumination device 1 for vehicle use includes an LED lamp 10, a circuit 5 for supplying a current to the LED lamp from a power supply mounted on the vehicle, and a current control unit 7 for controlling the current supplied to the LED lamp 10 so as to be inversely proportional to the environmental temperature of the LED lamp 10. In this manner, in the current supply circuit, an LED chip 11 is coupled to the collector of a common-emitter type transistor 15. The current control unit includes a PTC thermistor 21 and the PTC thermistor 21 is coupled to the base of the transistor 15, whereby a current supplied to the base is made small when the temperature of the PTC thermistor 21 becomes high. The PTC thermistor 21 is placed in a circumstance where the temperature thereof becomes same as the environmental temperature of the LED chip 11 at the time where the LED chip 11 is in an OFF state.

The invention provides easy handling and low cost-support equipment for measuring optical nerve-activity which is less stressful for subjects or doctors and the like. The support equipment, which provides light stimulation for subject eyes with its main body 10 fixed to the subject-head region and measures the subject optical nerve-activity, comprises a thin walled-main body 10 with a plurality of optical fibers 11 joined in the width direction; light emission regions 13a, 13b at least one of which is positioned in the main body aligned to the subject eye-position(s) and composed of a plurality of light leak parts 11c formed in peripheral surfaces of the optical fibers 11; and a connector 12a for connecting with a light emission device 12 providing light for each of the plurality of optical fibers.

Illumination unit for the generation of optical sectional images in transparent media, particularly in the eye is disclosed. In the arrangement according to the invention, the low-divergence beams emitted by a laser serving as illumination source are imaged on or in the eye under examination by a reflection element which is controllable in a defined manner and beam deflection elements present in the beam path. The optical sectional images resulting in and on the eye can be observed and/or recorded, further processed and evaluated with an image processing unit in a known manner. In the solution according to the invention, a sectional image is generated by the deliberate periodic beam deflection of a particularly fine laser beam with high depth of focus, which sectional image remains sharp through the entire dimension of the object to be examined and makes possible an improved evaluation. The intensity of the laser beam bundle can be varied in such a way that it is sufficient for observation and documentation, but so that the diameter of the beam bundle is fine enough for a high detail resolution.

A surface inspection system for projecting a laser beam to a surface of a substrate and for detecting a foreign object by detecting scattered reflection light of the laser beam, comprising a light source unit having a plurality of light emitting sources for emitting the laser beams, and a projecting optical system for projecting the laser beam from each of the light emitting sources to the surface of the substrate.

The invention provides a light control-based energy-saving system and method for a classroom. The light control-based energy-saving system comprises a central processor, a human body detection module, a photosensitive circuit module, a key module and a setting module, wherein the central processor is connected with the human body detection module, the photosensitive circuit module, the key module and the setting module respectively; a classroom lighting mode is set into a general mode, a self-study energy-saving mode and a class slide show mode; on and off of lighting equipment are controlled in the general mode according to the intensity, of ambient light in the classroom, obtained by the photosensitive circuit module and the personnel distribution obtained by the human body detection module; on and off of the lighting equipment are controlled in the self-study energy-saving mode according to the personnel distribution obtained by the human body detection module; and all pieces of lighting equipment are closed in the class slide show mode. According to the light control-based energy-saving system and method for the classroom provided by the invention, different lighting strategies are customized according to different lighting modes, so that subjective power waste caused by no intention is avoided.

The present invention relates to a light emitting device comprising a transparent substrate which light can pass through and at least one LED chip emitting light omni-directionally. Wherein the LED chip is disposed on one surface of the substrate and the light emitting angle of the LED chip is wider than 180°, and the light emitted by the LED chip will penetrate into the substrate and at least partially emerge from another surface of the substrate. According to the present invention, the light emitting device using LED chips can provide sufficient lighting intensity and uniform lighting performance.

The present invention relates to a projection device in which a projection lens has undergone arrangements at its exit surface, and more particularly side areas of this exit surface. The arrangements are intended to divert certain light rays emitted by a light source of the light in order to illuminate overhead lights without interfering with the homogeneity of the light beam of said light. The arrangements made may consist of protuberances in the form of serrations.

The invention discloses a shelf assembly and a refrigerator with the shelf assembly. The shelf assembly comprises two electric conductive pieces, a shelf, an LED lamp bar and two electrifying assemblies. The two electric conductive pieces are connected with the positive pole and the negative pole of a power source respectively, and respectively provided with at least one electric conductive bar, the shelf comprises a glass plate and a back decoration bar, a first containing groove for containing the rear end of the glass plate is formed in the front end of the back decoration bar, a containing cavity is formed in the back decoration bar, a plurality of lamp holes are formed in the front side wall of the containing cavity, the LED lamp bar is provided with a plurality of LED lamps and contained in the containing cavity, the two ends of the LED lamp bar extend to form a positive pole power line and a negative pole power line respectively, the two electrifying assemblies are connected to the two ends of the LED lamp bar and connected with the positive pole power line and the negative pole power line respectively, and the positive pole power line and the negative pole power line are electrically connected with the two electric conductive bars at the corresponding positions respectively through the electrifying assemblies. According to the shelf assembly, the whole area of the shelf can be illuminated, the structure is simple, and installation is convenient to achieve.

The invention discloses an LED (light emitting diode) lamp which comprises a baseplate, wherein the baseplate is provided with an LED assembly, the surface of the LED assembly covers a transparent heat conductor, and the periphery of the LED assembly is provided with a retaining wall; the LED assembly is also connected with a transparent lamp shade, the transparent lamp shade is provided with a reflecting aperture, and the baseplate and the transparent lamp shade form a seal cavity chamber; and the LED assembly is arranged in the seal cavity chamber, the transparent lamp shade is provided with a phosphor powder mixture, and the phosphor powder mixture is not contacted with the LED assembly. According to the invention, a spotlight transparent lamp shade can effectively lead an irradiate ray light beam of the LED lamp to concentrate, the penetrating power is strong and the illumination intensity is enough, thereby realizing spotlight effects of different angles; and a light expanding transparent lamp shade can effectively lead the rays of the LED lamp to irradiate in an angle greater than 270 degrees, the irradiation is uniform, and a glare problem is solved.

The invention relates to a light-distribution LED street lamp. The light-distribution LED street lamp comprises a plurality of light distribution surfaces, wherein each light distribution surface is provided with a plurality of LED lamps; the light distribution surfaces constitute two light distribution groups; the light distribution surface of the first light distribution group and the forward horizontal line of the erection reference plane form an obtuse included angle, and the light distribution surface of the second light distribution group and the reverse horizontal line of the erection reference plane form an obtuse included angle; the divergence angle of each LED lamp installed on the light distribution surface increases as the obtuse included angle between the light distribution surface and the horizontal line of the erection reference plane increases; the whole lamp cap is in the structure of a plane and has a compact structure; and the thickness of the lamp cap is determined by the light distribution surface with the maximum angle of inclination. The lamp can be very thin, thereby reducing production cost and eliminating the phenomenon of light blocking of the LED lamps on the light distribution surfaces with different angles of inclination as well as the phenomenon of light absorption among adjacent LED lamps. The light-out rate reaches 90%. Thus, the light-distribution LED street lamp ensures sufficient intensity of illumination on the road surface far away from the light source, and realizes light distribution curves required by different illuminated areas. The light-distribution LED street lamp has the advantages of favorable light distribution effect, and uniform intensity of illumination in the illuminated area.

An automated wash rig is disclosed for cleaning the interior of a freight container. The wash rig may be transported atop a mobile platform or carriage and inserted into the interior of the freight container. During the cleaning process, the wash rig may travel along the length of the floor of the freight container. Washers (e.g., spray nozzles) on the wash rig may be used to direct cleaning fluid at the surfaces of the interior of the freight container, while dryers (e.g., air knives) on the wash rig may be used to dry off those surfaces. As the wash rig traverses the entire length of the freight container, the entire interior of the freight container is washed and dried. The wash rig may also have ultraviolet (UV) lamps which can provide UV light to sanitize the interior of the freight container during this process.

The invention discloses a method and a device for measuring the rotating speed of a table tennis ball. The method comprises the following steps of: constructing a coordinate system, setting an image acquisition range and acquiring an image; identifying a mark of a table tennis ball and acquiring a main direction of the mark; calculating an included angle alpha between the main direction and the xaxis of the coordinate system; obtaining an included angle beta between the main direction of the mark of the table tennis ball in the image and the x axis of the coordinate system after a time interval T; obtaining the rotating direction of the table tennis ball according to the angle difference between the included angle alpha and the included angle beta; and calculating the rotating speed omegaof the table tennis ball according to the angle difference and the time interval T. According to the invention, the characteristics of the table tennis ball in the small-range image are analyzed by setting the image acquisition range, so that the defects of large transmission data volume and low speed in the traditional high-speed vision field are overcome, and the rotating speed of the table tennis ball can be calculated in an extremely short time.