48results about How to "Expand sweep range" patented technology

An embodiment of the invention provides a control method and control device of an air deflector, and relates to the technical field of control of air conditioners. By the control method and control device of the air deflector, an indoor unit of an air conditioner has all-around and stereoscopic air supply effect, and is large in air blowing range. The method comprises the following steps: positioning the air deflector at an air outlet of the indoor unit of the air conditioner, wherein the air deflector comprises a horizontal air deflector body, a vertical air deflector body and a motor which respectively drives the horizontal air deflector body and the vertical air deflector body to run; and intercepting starting signals which are transmitted to the indoor unit of the air conditioner from an air conditioner controller by using a control device, controlling the horizontal air deflector body to swing in a first preset angle range from a first preset position according to first pulse time intervals, and controlling the vertical air deflector body to swing in a second preset angle range from a second preset position according to second pulse time intervals. The embodiment of the invention is used for air supply control of the air deflector in a central air-conditioning control system.

The invention discloses an exhaust device of an air conditioner. The exhaust device comprises an exhaust cylinder rotatably disposed above the air conditioner and a drive device driving the exhaust cylinder to rotate. The exhaust cylinder is provided with an exhaust hole which is provided with an air guide plate which can guide air up and down. Therefore, by the use of the exhaust device, blowing range of the air conditioner can be enlarged effectively. The invention further discloses the air conditioner comprising the exhaust device.

The invention discloses an optical device spectrum response measurement method based on double sideband modulation and stimulated Brillouin scattering effect, comprising steps of dividing an optical carrier wave which is outputted by a light source into two paths, performing frequency-beating in a photoelectric detector by a scanning frequency double sideband signal and a carrier having the frequency shifted after the signal passes through the optical device to be detected, obtaining two radio frequency signals which have two different frequencies and carry spectral response information of the optical device to be detected at the scanning frequency double sideband signal frequency position, using a radio frequency amplitude phase extraction module to respectively extract amplitude phase information of two radio frequency signals to obtain an amplitude-frequency response and a phase frequency response of the optical device to be detected at the optical detection signal frequency, changing the wavelength of the optical detection signal and repeating the above process to obtain the spectral vector response information of the optical device to be detected. The invention also discloses an optical device spectrum response measurement device based on the double sideband modulation. Compared with the prior art, the optical device spectrum response measurement method and measurement device greatly improve the measurement range and the measurement efficiency.

The invention discloses an air channel assembly with a through-flow air wheel, and a tower fan provided with the air channel assembly. The through-flow air wheel is arranged inside the air channel assembly; an air channel air inlet and an air channel air outlet are formed in the air channel assembly; the radial outer edges of the air channel air outlet, the air channel air inlet and the air channel assembly are located on the same circumference face; an air outlet grille is arranged at the air channel air outlet; and the radial outer edge of the air outlet grille is located on the circumference face. In the air channel assembly with the through-flow air wheel, and the tower fan, the radial outer edge of the air outlet grille is located on the circumference face of the radial outer edge ofthe air channel assembly; the radius of the air outlet face of the air outlet grille is equal to the radius of an inner rotor of the tower fan, and therefore interference of the air outlet griller anda shell of the tower fan can be avoided during rotating of the inner rotor; and in this way, the rotating range of the inner rotor can be enlarged, the air-swept range is enlarged, and 360-degree airsupply can be achieved.

The invention provides an air sweeping mechanism. The air sweeping mechanism comprises an air sweeping blade set; the air sweeping blade set is arranged in an exhaust port; and exhaust sides of air sweeping blades near two ends of the exhaust port in the air sweeping blade set are deflected far from the air sweeping blades in middle. In the air sweeping mechanism, the exhaust sides of the air sweeping blades near two ends of the exhaust port are deflected far from the air sweeping blades in middle. The air sweeping blades near two ends of the exhaust port form a horn shape in the air sweeping port; and when the air sweeping mechanism sweeps air by any angle, the air is always swept out in a horn form, so that the air sweeping range is wider.

The invention relates to an optical fiber vibration sensor based on delay phase-modulated chirped pulse pairs. The sensor comprises a narrow linewidth laser, a first optical fiber coupler, an electro-optical modulator, an acousto-optic modulator, an optical amplifier, a second optical fiber coupler, a delay optical fiber, an optical fiber expansion device, a first Faraday rotator mirror, a secondFaraday rotator mirror, an annular device, a to-be-measured optical fiber, a third optical fiber coupler, a first polarization controller, a fourth optical fiber coupler, a second polarization controller, a fifth optical fiber coupler, a sixth optical fiber coupler, a first double-balance detector, a second double-balance detector, a first analog-to-digital converter, a second analog-to-digital converter, a first digital signal processing unit, a second digital signal processing unit and an arbitrary waveform generator. With the optical fiber vibration sensor adopted, the contradiction betweenspatial resolution and sensing distances in a traditional sensing system based on a time-domain reflectometer can be eradicated; the problem of interference attenuation in an interference sensing system can be solved; and indexes such as a long sensing distance, high spatial resolution and a high signal-to-noise ratio can be achieved simultaneously.

The invention discloses a single-end fast distributed Brillouin optical time domain reflectometer based on an optical chirp chain, relates to the technology of the single-end fast measurement of the strain and temperature of distributed optical fibers, and aims at solving a problem that a conventional Brillouin optical time domain reflectometer is long in measurement time. According to the invention, one path of light is modulated into pulsed light through a first electrooptical modulator, and the pulsed light is amplified by an erbium-doped optic fiber amplifier as pump light, enabling the pump light to sequentially pass through a first port and a second port of a circulator, and then inputting the light through one end of a to-be-tested optical fiber. The other path of light is modulatedinto optical chirp signal light through a second electrooptical modulator, and the lower sideband of the optical chirp signal light is filtered by a first filter as reference light. A spontaneous Brillouin signal outputted by the circulator and the reference light perform the beat frequency operation, and a balance detector detects a beat frequency signal and performs the photoelectric conversion. An electric signal is filtered and detected by a filter detection module, and a collection module collects an output signal of the filter detection module. The Brillouin optical time domain reflectometer is suitable for the measurement of superfast single-end distributed Brillouin temperature and strain.

There is provided a circuit for generating a sweep frequency signal. The circuit comprises a reference frequency source operative to generate a reference frequency signal, a first frequency combination circuit operating on a first frequency band, with an input coupled to an output of the reference frequency source, and operative to generate a sweep frequency signal in the first frequency band at its output based on the reference frequency signal, a second frequency combination circuit operating on a second frequency band different from the first frequency band, with an input coupled to the output of the reference frequency source, and operative to generate a sweep frequency signal in the second frequency band at its output based on the reference frequency signal, a multiple-level switch with an input coupled to an output of the first frequency combination circuit and to an output of the second frequency combination circuit, and a control circuit coupled to and controlling the first frequency combination circuit, the second frequency combination circuit and the multiple-level switch to output the sweep frequency signal in the first frequency band and the sweep frequency signal in the second frequency band at an output of the multiple-level switch alternately. According to the embodiments, the sweeping speed is enhanced, and the sweep frequency width is extended while the sweep frequency signal has a high pure spectrum (i.e., with a low noise level).

The invention provides a wind sweeping blade mechanism and an air conditioner comprising the same. The wind sweeping blade mechanism comprises a longitudinal wind sweeping blade component and a firstdriving mechanism; the longitudinal wind sweeping blade component comprises multiple first wind sweeping blades; the first driving mechanism is connected with the longitudinal wind sweeping blade component and is used for driving the multiple first wind sweeping blades to rotate to enable the multiple first wind sweeping blades to perform wind guiding operation in the vertical direction; the firstdriving mechanism can drive at least one of the multiple first wind sweeping blades to perform wind guiding operation in the first direction and can also drive the rest first wind sweeping blades toperform wind guiding operation in the second direction, and an included angle is formed by the first direction and the second direction. According to the wind sweeping blade mechanism and the air conditioner comprising the same, the wind sweeping range of the wind sweeping blade mechanism is enlarged effectively, and the practicability of the air conditioner comprising the wind sweeping blade mechanism is improved effectively.

The invention relates to a scraper machine curvature optical fiber measuring system, and belongs to the technical field of distributed optical fiber sensing. The scraper machine curvature optical fiber measuring system aims at solving the problems that an existing scraper machine curvature measuring method cannot accurately detect the bending angle of a scraper machine in real time, and the advancing direction of the scraper machine cannot be adjusted in time. According to the scraper machine curvature optical fiber measuring system, an IQ cyclic modulation method, a double-interference loop and a polarization diversity reception technology are combined to accurately measure the curvature of the scraper. Meanwhile, a specific optical fiber laying mode is provided, real-time monitoring of the curvature of the scraper is achieved, unnecessary losses caused by the fact that a coal mining machine deviates from the track are avoided, and the scraper machine curvature optical fiber measuringsystem has the beneficial effects of being accurate in measurement, high in reliability, good in real-time performance and the like.

The invention discloses an air outlet component and a kitchen air conditioner. The air outlet component comprises a fixing frame (1), air sweeping blades (2) and a rotating connecting part (3), the air sweeping blades (2) are arranged at an air opening of the fixing frame (1), and the rotating connecting part (3) is connected to the fixing frame (1) and makes the fixing frame (1) rotate relative to an air conditioner indoor unit (4). According to the air outlet component, all-around air sweeping of the air outlet component can be achieved, and the air sweeping range of the air outlet component is enlarged.

The invention discloses a frequency-modulated continuous wave laser radar ranging method based on double heterodyne mixing. According to the method, complex laser feedback control is not needed; implementation cost is effectively reduced, phase noise of the laser is counteracted in a beat frequency mode, good expansibility is achieved, the frequency sweeping range can be doubled by increasing thenumber of cascaded phase modulators, accordingly, the frequency sweeping range of the laser is expanded, the linearity of frequency sweeping is improved, and the ranging result obtained through the method is higher in precision and higher in practicability. The problems that an existing method for improving the ranging precision of the frequency-modulated continuous wave laser radar is complex inprocess, high in cost and not ideal in effect are solved.

The invention provides an air outlet device and an air conditioner provided with the air outlet device. The air outlet device comprises a supporting part, a guide part, an air outlet part, a rotation driving part and a lifting part, wherein the supporting part is provided with a first arc guide groove facing upwards; the guide part is connected with the supporting part and is provided with a second arc guide groove which corresponds to the first arc guide groove and faces the lower side; the air outlet part is provided with an air outlet, and is positioned above the supporting part; the rotation driving part is connected between the guide part and the air outlet part, or between the supporting part and the air outlet part; the rotation driving part is provided with at least two rolling wheel that are oppositely arranged; one rolling wheel is positioned in the first arc guide groove; the other rolling wheel is positioned in the second arc guide groove; the rotation driving part drives the air outlet to conduct rotation air sweeping; and the lifting part is arranged on the supporting part, is connected with the air outlet part, and drives the air outlet part to move up and down to allow the air outlet to be provided with a first position during closing or a second position during opening. According to the air outlet device and the air conditioner, the problem that the air outlet device in the prior art is unsteady in air sweeping is effectively solved.

The invention provides a scavenging blade. The scavenging blade comprises a connecting part and a scavenging part, wherein one end of the connecting part is provided with an extending end which is used for being connected with a blade clamping plate of an air conditioner, the scavenging part is used for being connected with a scavenging connection rod of the air conditioner and is connected with the other end of the connecting part, the connecting part and the scavenging part are made of different materials, and the flexural rigidity of the connecting part is smaller than that of the scavenging part. According to the scavenging blade, the flexural rigidity of the connecting part is smaller than that of the scavenging part, so that the scavenging angle of the scavenging blade is enlarged, the scavenging part is bent through the connecting part, the problems that the scavenging angle of the scavenging blade is not large enough and the bent portion is prone to fatigue crack are effectively solved, the scavenging range of the scavenging blade is expanded, and the reliability of the scavenging blade is improved. The invention further provides the air conditioner and a scavenging assembly thereof.

The invention relates to a fan with head oscillating and raising functions. The fan with the head oscillating and raising functions comprises a body, a first air supply part, a head oscillating assembly, a head raising assembly and a second air supply part, wherein the head oscillating assembly drives the head raising assembly and the second air supply part to rotate along a Z axis, and the head raising assembly drives the second air supply part to rise and fall; the first air supply part comprises a first motor, a first fan, a fan support and an annular air guide barrier, the fan support and the annular air guide barrier are internally provided with annular air ducts respectively, and a groove is further formed in the annular air guide barrier; and the head raising assembly comprises an upper joint assembly, a lower joint assembly and a lifting arm, the upper end of the lifting arm is movably connected with the second air supply part, the lower end of the lifting arm is movably connected with the head oscillating assembly, the upper joint assembly drives the second air supply part to rotate around a Y axis, and the lower joint assembly drives the lifting arm to rise and fall. The invention further discloses an air purifier using the fan. According to the fan with the head oscillating and raising functions and the air purifier using the fan, a head rising angle of the second air supply part reaches 90 degrees, and head raising action and head oscillating action can be synchronously carried out.

The invention relates to a convenient-to-assemble circulation fan capable of rotating up and down left and right. The convenient-to-assemble circulation fan comprises a fan assembly, a seat assembly,a supporting assembly and a rotating seat, wherein the rotating seat is provided with a rotating shaft, a limiting convex part and a mounting lug part; the supporting assembly is provided with a pivoting hole and a limiting hole, the rotating shaft is adapted to the pivoting hole, and the limiting convex part is adapted in the limiting hole; and the seat assembly comprises a seat body, a main control circuit board, a power panel, a base plate upper cover and a rotating unit, wherein the rotating unit comprises a rotating motor, a crank and a rotating connecting rod, wherein the rotating shaftof the rotating motor is connected with the crank, the crank is connected with the rotating connecting rod, the rotating connecting rod is connected with the base plate upper cover, and the main control circuit board is electrically connected with the power panel and the rotating motor correspondingly. The convenient-to-assemble circulation fan can swing up and down left and right, and has an omni-directional direction turning function, the range of an air swing is larger, and an application range is wider; meanwhile, the fan assembly can be adjusted to a proper gear position (or angle) in a vertical direction according to use requirements; and meanwhile, the gear is convenient to switch and is easy to shift, and noise cannot be generated.

The invention relates to the technical field of a fiber laser and specifically relates to a broadband high-speed sweep frequency light source. The sweep frequency light source comprises a broadband high-speed sweep frequency light source input circuit and a broadband high-speed sweep frequency light source output circuit, which are formed by a quantum well semiconductor optical amplifier QW-SOA1,a quantum dot semiconductor optical amplifier QD-SOA, an optical coupler 3, a fiber polarization controller 2, a two-stage isolator 2, an optical fiber F-P tunable filter, an optical circulator, a single-mode fiber, a Faraday rotation mirror, an optical coupler 1, a two-stage isolator 1, a fiber polarization controller 1 and an optical coupler 2. The system connects the quantum well semiconductoroptical amplifier QW-SOA1 and the quantum dot semiconductor optical amplifier QD-SOA in parallel through the coupler, thereby broadening the sweeping range of the sweep frequency light source; and through combination of the FDML technology, the sweep frequency light source has the advantages of high speed, narrow line width and high phase stability and achieves a broadband high-speed purpose.

The invention provides an air deflector control method and device and an air conditioner, and belongs to the field of electrical equipment. The air deflector control method comprises the steps that after a driving connecting rod of an air deflector operates to a preset connecting rod position, the air deflector is controlled to be started to operate; when the air deflector operates, the position of the air deflector is obtained; and if the air deflector is located at the non-ideal position, the air deflector is controlled to adjust the position. According to the method, the swing flap range can be expanded, and the risks that the wind is prone to be blown to a person or water condensation is prone to occur are reduced.

The invention discloses an intelligent automatic temperature control air conditioner which comprises a casing and a wireless temperature sensing device, wherein a temperature sensing piece is arranged in the wireless temperature sensing device; the left surface of the casing is provided with an air outlet; a rotary rod I is provided with wind scattering sheets; a linkage rod is connected between the wind scattering sheets; a rotary end of a driving motor is provided with a rotary rod II inserted in a bearing II; the rotary rod II is provided with a wind guiding sheet; an evaporator, a fan and a compressor are arranged in the casing; the evaporator and the compressor are connected through a connecting pipe; a wireless signal receiver and a controller are arranged outside the casing. The intelligent automatic temperature control air conditioner provided by the invention adopts the wireless temperature sensing device to set a distance between the wireless temperature sensing device and the air conditioner at random so as to ensure that the temperature of a remote location can reach a set temperature, thereby adjusting the temperature automatically, reducing the waste of resources, and meeting a concept of environmental protection; meanwhile, the wind guiding sheet is arranged in the air conditioner, so that a sweeping range is larger, and the comfort degree of a user is improved.

The invention discloses a disinfection system for preventing winding and a clothes drying machine. The disinfection system for preventing winding comprises a sleeve member, a wind guide wheel, a hanger and a circuit board. The sleeve member is provided with a hollow column structure. A buckle is arranged on the top of the sleeve member, and a bearing sleeves outside the sleeve member. The wind guide wheel sleeves outside the bearing to make the wind guide wheel and the sleeve member rotate relatively. The middle part of the hanger is provided with a clamping hole. The top of the sleeve memberpenetrates a shaft hole of the wind guide wheel and extends to the clamping hole of the hanger. The buckle is clamped at the clamping hole to make the hanger and the sleeve member relatively static. The circuit board is arranged at the bottom of the sleeve member. Disinfection equipment is connected to the lower surface of the circuit board. The circuit board is provided with wiring terminals. Thewiring terminals are connected to a power cord. The power cord extends through the sleeve member and the clamping hole of the hanger to the top of the hanger, and is prevented from being entangled inthe wind guide wheel. At the same time, the disinfection equipment is integrated into an air drying system to expand the scope of air sweeping and disinfection.