175results about How to "No electromagnetic radiation" patented technology

The invention discloses an electronic control dimming medium which comprises two substrate layers. A mixed layer is arranged between two substrate layers and is made by mixing smectic phase liquid crystal and additives. A conductive electrode layer is arranged at the sides of two substrate layers towards the mixed layer, and the conductive electrode layer is connected with a circuit drive control apparatus. Two substrate layers can be made of glass, or two substrate layers can be made of plastic, or one substrate layer is made of the glass, and the other substrate layer is made of the plastic. When an electric signal which is applied to the conductive electrode layer is controlled, smectic phase liquid crystal molecules can be characterized by different arrangement states, and the arrangement states are the same in the electroless case, so as to ensure that the medium can be switched between a vaporific shielding state and a full transparent state and even can be switched among various gradual progress states of different gray scales. The electronic control dimming medium can be widely applied to the fields of building decoration and fitment, privacy control area, automobile electronics, electronic bulletin board, etc.

The invention provides a vacuum pipeline docking technology and a high-speed permanent maglev train system. With the station-training docking technology, the door closing time of the maglev train inside the vacuum pipeline can be shortened for scores of seconds, so the rapid on-off can be realized. When a telescopic door and a separation cabin door are withdrawn to be close to the wall of the vacuum pipeline, the high-speed pass of the tray is free from being influenced. The telescopic door is locked by a permanent magnet suction disc, and the locking force is free from being controlled by the electric power, so the gas leakage and pressure relief caused by the invalid locking for sudden power down can be prevented. The energy can be remarkably saved, the energy can be saved by more than 97 percent compared with that of high-speed track train, and the energy can be saved by more than 99 percent compared with that of the airplane.

The present invention relates to one kind of solution for electronic intelligent atomized cigarette and its preparation process. The solution is prepared with 18 kinds of material, including edible propylene glycol, glycerin, longan extract, apple extract, carrot extract, etc. and through mixing, settling, filtering and packing. The solution contains no nicotine and other harmful matter, is incombustible, and can counteract cigarette toxin, clear away lung heat, moisten lung and shield electromagnetic wave. It may be used by different smokers and in different places.

The invention provides a butt joint system of a train and a platform passageway, and belongs to low pressure pipeline sealing technologies and the technical field of permanent magnet suspension vehicles. The interior of a low pressure pipeline is pumped to be in a low pressure state, and a perspective window, a safety ventilation plug and a pipeline expansion joint are arranged on the low pressure pipeline. A pipeline sealing and separating valve is arranged at the joint position of the low pressure pipeline and outside normal atmosphere, and a filter pipeline is arranged at the joint position of the low pressure pipeline and the external standard atmosphere. The butt joint system has the advantages that good compatibility is achieved, safety performance is high, energy consumption is low, driving force is large, the braking distance is short, the operating speed can reach 800 Km/h to 1000 Km/h, operating is stable, the vehicle density can be adjusted according to the actual passenger flow volume, comprehensive cost is low, the train can run all day long, a steel sealing cover is arranged outside a high speed rail and can shield outward radiation of electromagnetic waves and obstruct outward transmission of sounds, zero release is achieved, energy is saved, and the environment is protected.

The invention discloses a novel carbon fiber composite electric heating film which comprises a conductive carbon fiber layer, wherein the conductive carbon fiber layer is of a meshy structure weaved by carbon fibers, two ends of the conductive carbon fiber layer are connected with metal electrodes, and the conductive carbon fiber layer is entirely cladded by an insulated heat conduction plastic film to form a laminated structure. The carbon fiber electric heating film provided by the invention is resistant of high temperature and not easy to oxidize; and the outer-layer heat conduction plastic of the carbon fiber electric heating film is an insulated material and can resist high temperature of 300 DEG C and high voltage; and therefore, the carbon fiber electric heating film provided by the invention has extremely high safety and can be guaranteed to be used for over 50 years. The carbon fibers supply heat to the external environment in an infrared irradiation mode, is free of dust, noise, wastes and waste gases and is basically free of electromagnetic irradiation. The invention has the advantages of concise preparation process, low cost, energy source saving and eco-environmental protection and accords with the environment protection and energy source development directions.

The invention discloses a visible light communication password unlocking device and method. The visible light communication password unlocking device comprises a light key and a light-sensing lock, wherein the light key is used for converting a digital password signal into a visible light signal which flickers according to certain frequency and transmitting the visible light signal to the light-sensing lock; the light-sensing lock is used for receiving the visible light signal, converting the visible light signal into the digital password signal and comparing the digital password signal with a pre-set digital password signal to judge whether the light-sensing lock is unlocked or not. By adopting the visible light communication password unlocking method disclosed by the invention, the light-sensing lock is unlocked through the visible light key and the safety is relatively high. The light key does not have penetrability and is difficult to copy; electromagnetic radiation is not caused, and energy saving and environment protection are realized; meanwhile, physical keys including a metal key or an access control card and the like are omitted, so that the visible light communication password unlocking device has relatively high application and popularization value; compared with a traditional access control system, the visible light communication password unlocking device has the characteristics of energy saving and environment protection and high safety.

The invention provides an electrothermal film and a preparation method thereof. The electrothermal film is prepared from the following components in parts by weight: 85 to 100 parts of stannic chloride, 3 to 6 parts of antimony butter, 2 to 4 parts of titanium tetrachloride, 2 to 5 parts of ferric trichloride, 1 to 3 parts of bismuth trichloride, 10 to 15 parts of hydrochloric acid, 20 to 30 parts of isopropyl alcohol, 20 to 40 parts of methanol and 50 to 80 parts of absolute ethyl alcohol. All the components are weighed and mixed to obtain a stock solution of the electrothermal film; the stock solution of the electrothermal film is sprayed to the surface of a base material by adopting the metal salt solution spray pyrolysis method. The electrothermal film and the preparation method thereof have the advantages and the active effects that the electrothermal film is high in heating efficiency; the film forming speed can reach 80nm/min; the preparation method is suitable for manufacturing of a large-area film and large-scale production.

The invention provides a semiconductor direct current photoelectric transformer which comprises an isolating layer, a plurality of electrooptical conversion structures and a plurality of photoelectric conversion structures, wherein the electrooptical conversion structures are formed at one side of the isolating layer; the electrooptical conversion structures are mutually connected in series; eachelectrooptical conversion structure comprises a first electrode layer, an electrooptical conversion layer formed on the first electrode layer and a second electrode layer formed on the electroopticalconversion layer; the photoelectric conversion structures are formed at the other side of the isolating layer; the photoelectric conversion structures are mutually connected in series; each photoelectric conversion structure comprises a third electrode layer, a photoelectric conversion layer formed on the third electrode layer and a fourth electrode layer formed on the photoelectric conversion layer; and the isolating layer, the second electrode layer and the third electrode layer are transparent to working light rays emitted by the electrooptical conversion layer. The semiconductor direct current photoelectric transformer of the embodiment of the invention has the advantages of high-voltage resistance, no electromagnetic radiation, no coil structure, no influence by solar radiation, and the like.

The invention discloses a power-grid-based power strip control system and a power-grid-based power strip control method. The system comprises a mobile terminal, a global system for mobile communication (GSM) wireless communication module, a master control unit, slave control units and power strip state detection control circuits, wherein the mobile terminal is used for transmitting operation instructions to the master control unit in a short message form; the GSM wireless communication module is used for receiving the operation instructions transmitted by the mobile terminal in the short message form, and transmitting the operation instructions to the master control unit; the master control unit is used for determining slave control units to be controlled by the instructions according to the operation instructions in the short message form, and transmitting the operation instructions to the slave control units through power lines; the slave control units are used for receiving the instructions transmitted through the power lines, and driving the power strip state detection control circuits to control power strip switches to be turned on or turned off; and the power strip state detection control circuits are used for detecting and controlling the turning-on or turning-off states of the power strip switches. Power carrier communication modules are used as the master control unit and the slave control units, and communicate through the power lines to form a local area network to realize intelligent control over power strips used by each electrical appliance in a family space.

A transformer substation fiber perimeter security monitoring system disclosed by the present invention comprises a defence area unit and a central control system, the defence area unit is divided into a plurality of defence areas, and each defence area comprises a terminal unit, a vibration sensing optical cable, an alarm monitoring unit and a signal transmission optical cable which are connected orderly. The adjacent defence areas share one alarm monitoring unit, the signal transmission optical cables are connected with the central control system, and the central control system sends the alarm protocol data to the linkage devices via a network or an interface to configure an alarm linkage system. The transformer substation fiber perimeter security monitoring system of the present invention has the advantages of being low in signal detection loss, unit cost and laying cost, wide in monitoring range, good in concealment, high in security and automation degree, having no dead zone and electromagnetic radiation, having passive links, belonging to the active monitoring, etc., is specially suitable for the occasions of higher security levels, such as a transformer station, etc.

The invention discloses an electric heating film, an electric heating plate and corresponding manufacturing methods. The electric heating film comprises a substrate and a heating coating, wherein the heating coating comprises an adhesive and a carbon heating material; the carbon heating material is the mixture of carbon black power and graphite powder. Moreover, the invention discloses an electric heating plate using the electric heating film, and manufacturing methods for the electric heating film and the electric heating plate. The electric heating film and the electric heating plate, obtained by the manufacturing methods, are very uniform in heating, free from electromagnetic radiation and harmless to humans, emits no visible light at a temperature of below 500 DEG C and is very high in electricity-heat conversion efficiency; because the heating body is made of a carbon powder material and cannot be oxidized by the oxygen in the air, the service life is long; according to the electric heating film obtained according to the formula and the electric heating plate containing the electric heating film, under the condition of meeting the using power, heat is emitted from a surface and the electric heating film and the electric heating plate are very thin and very small in mass, and the instantaneous heating capacity is very small, so that heating is fast, and the purpose of plugging and heating is achieved.

The invention provides a plastic optical fiber network electricity checks meter system, and belongs to the field of power line information transmission. The checks meter system provided by the invention has strong anti-electromagnetic interference and nuclear radiation resistance as well as reliable performance; collected data has strong real-time performance, and low cost and high speed transmission of data are realized; the plastic optical fiber network electricity checks meter system is composed of electricity meters, a meter reading module, plastic optical fiber, a plastic optical fiber network switch and a data processing center; The signal flow direction of the checks meter system is as follows: an optic transmitter of the meter reading module converts an electricity meter signal to a network optical signal; the optical signal is coupled to the plastic optical fiber; an optical receiver of the meter reading module receives signals and reduces the optical signal to a network electrical signal; the plastic optical fiber network switch is used for data processing; and the data processing center is used to process data so as to complete the whole process of meter reading. The checks meter system provided by the invention has excellent anti-electromagnetic interference performance, strong security, high sensitivity and small volume, is simple to prepare, requires low cost, and has waterproof and moistureproof properties as well as long service life.

The invention discloses a digital negative ion generator, which comprises a power conversion circuit, a main controller, a voltage conversion circuit, a protection circuit and a negative high voltage feedback circuit, wherein the power conversion circuit is composed of an LC half-bridge resonant circuit, a piezoelectric ceramic transformer and a double voltage circuit connected in sequence; the protection circuit comprises an overcurrent protection circuit and an overheat protection circuit; the negative high voltage feedback circuit is composed of a bleeder circuit, a half wave rectification circuit and a voltage amplitude limiting circuit connected in sequence; the input end of the main controller is also connected with an A/D conversion circuit; the input end of the A/D conversion circuit is also connected with a specified voltage circuit; the output end of the main controller is connected with a driving circuit; and the LC half-bridge resonant circuit is connected with the output end of the driving circuit. The invention also discloses a digital negative ion generator control method. The design is novel and reasonable, work reliability is high, functions are complete, the fault rate is low, maintainability is high, practicability is high, and promotion and use are facilitated.

The invention relates to a light stick type LED lighting source. The prior filament lamp or the fluorescent tube used for illumination has the defects that the power consumption is huge, the service life is short, the lighting time is long, the mercury pollution is easy to be caused during the manufacturing process, and the light ray lack the softness and the evenness. The light stick type LED lighting source is composed of a LED light source, a high-efficiency light guiding stick, a reflecting film, a directional reflecting cover and an outer casing, wherein the LED light source and PCB board are arranged on one or two side faces of the geometrical body formed by the high-efficiency light guiding stick, a V shaped light reflecting slot is arranged on the upper surface of the high-efficiency light guiding stick, the reflecting film is positioned on the upper surface of the high-efficiency light guiding stick, the directional reflecting cover is positioned on the front face of the high-efficiency light guiding stick, and the invention can be a single pipe or a multi-pipe light stick type LED lighting source. The light stick type LED lighting source has the advantages of energy saving, environmental protection and long service life; as one of the future light sources which are most interested in by the people, the direct aim of the LED lighting source is to replace the filament lamp or the fluorescent tube, thereby the LED lighting source has a good economic benefit and social benefit.

The invention relates to a 4 pi light dipping LED (light emitting diode) ball lamp bulb which comprises a joint, an LED driving device and a lamp bulb cover, wherein the lower end of a radiating ring is connected with the joint, and the upper end of the radiating ring is connected with the lamp bulb cover; the radiating ring is internally provided with a radiating block with high-heat conduction property; the outer wall of the radiating block is connected with the inner wall of the radiating ring; the bottom surface of the radiating block is provided with a transparent lamp column with high-heat conduction property; the transparent lamp column is provided with a 4 pi LED lamp strip; the 4 pi LED lamp strip comprises a plurality of LED chips connected in series sequentially; the interior of the radiating ring is provided with the LED driving device; and the LED driving device is electrically connected with the 4 pi LED lamp strip. The invention provides the 4 pi light dipping LED ball lamp bulb capable of promoting bright dipping rate and reinforcing the radiating property.

The invention relates to a heating system integrating far-infrared heating and ohmic resistance heating and further relates to an electric heating system. The electric heating system comprises electric heating cloth, two copper foils and a battery pack, wherein the two copper foils are adhered at two ends of the electric heating cloth, the battery pack is connected with the copper foils, two electrodes of the battery pack are connected with the two copper foils respectively, and the battery pack consists of a lithium ion battery with a temperature control switch. The macromolecule electric heating cloth has healthcare function and heating and warming functions and is fast in heating, uniform in heat radiation, high in electric heating transfer rate, resistant to heat, corrosion and ageing and the like.

The invention relates to a medical intelligent temperature regulation electric-heating bedpad, which comprises a lining layer, an intermediate layer and an outer layer from inside to outside; the lining layer is provided with a carbon fiber infrared heating assembly without electromagnetic radiation; the intermediate layer is a high-intensity specific fiber layer; the outer layer is a composite fiber membrane layer; the carbon fiber infrared heating assembly without electromagnetic radiation is arranged in the lining layer; the high-intensity composite fiber membrane assembly having functions of preventing electromagnetic radiation, preventing the puncture of a sharp instrument, resisting high temperature, resisting acid and alkali and insulating is arranged in the intermediate layer; the external specific fiber membrane protection layer assembly which is waterproof, breathable and anti-stain is arranged in the outer layer; and the three layers form a bedpad structure. By the bedpad, the risk of bedpad electricity leakage and the influence of electromagnetic radiation on monitoring equipment is low, and a conformable and reliable treatment environment can be provided for a patient.

The invention relates to a high-power neutral electrolyte metal-air battery system and a using method thereof. The battery system comprises two or a plurality of basic cell units connected in series or in parallel, an electrolyte filtering box, a circulating pump, a control valve, an electrolyte input distributor, an electrolyte discharge manifold, a drain valve, an electrolyte overflow manifold,a control circuit, a controller, a connecting pipeline and the like. Each basic cell unit consists of a reaction box, an anode, a cathode, electrolyte, a cathode busbar and an anode busbar; and an electrolyte input port, an electrolyte discharge port and an electrolyte overflow exhaust port are formed at both sides of the reaction box. The electrolyte is neutral liquid, such as salt water, seawater and the like. The electrolyte of each basic cell unit is communicated with each other without using an electrolyte isolator. The high-power neutral electrolyte metal-air battery system and the usingmethod thereof, which are disclosed by the invention, are applicable to the high-power power utilization requirements and have the characteristics that after the anodes are used up, the anodes can bereplaced so as to reuse the high-power neutral electrolyte metal-air battery system; the high-power neutral electrolyte metal-air battery system can be stored for long time in a safe and maintenance-free mode, and is simple to start up and use; a load can be cut off at any time; the high-power neutral electrolyte metal-air battery system and the using method thereof have no pollution to the environment; and reaction precipitates can be recovered and recycled.