58results about How to "Meet adjustment needs" patented technology

The invention discloses a high-power cylindrical gear comprehensive performance test bench with the stepless adjustable center distance. A drive motor is installed at one side of a terrace iron unit; a first closed cylindrical gear box, a first elastic coupling, a first intermediate shaft, a second elastic coupling, and a high-power hydraulic oscillating cylinder are installed clockwise; the output end of the oscillating cylinder is connected with a second closed cylindrical gear box by a connecting flange, a third elastic coupling, and a second intermediate shaft; the second closed cylindrical gear box is connected with an accompanying gear test bench by a fourth elastic coupling, a fifth elastic coupling, and a third intermediate shaft; the accompanying gear test bench and an active gear test bench are connected by a sixth elastic coupling; and the active gear test bench is provided with a seventh elastic coupling, a fourth intermediate shaft, and an eighth elastic coupling successively towards the direction of the first closed cylindrical gear box. The comprehensive performance test bench can be adjusted conveniently and mounted or dismounted rapidly. With a hydraulic expansion sleeve, repeated mounted or dismounted of a shafting at a bearing seat is avoided; and the requirement of long-term frequent testing can be met.

The invention discloses an electric power system secondary frequency modulation method based on DFIG and a synchronous generator. According to a synchronous generator frequency deviation, a connectingline net exchange power and a wind power predication error, an ACE value of a power grid is calculated, and furthermore the active power adjustment amount of each modulated frequency is distributed according to a wind power field and synchronous generator secondary frequency modulation adjustment participation coefficient, thereby realizing coordinated secondary frequency modulation control between DFIG and the synchronous generator. According to the electric power system secondary frequency modulation method, based on traditional power grid AGC controlling, influence of the wind power predication error to the magnitude of ACE is considered, and active standby of the wind power field is taken into the power grid secondary frequency modulation. Based on the traditional secondary frequencymodulation, a secondary frequency modulation adjustment coefficient of the wind power field is defined so that coordinated secondary frequency modulation control of the DFIG and the synchronous generator is realized.

The invention provides an integrated driving short roller device for pulling glass. The integrated driving short roller device comprises a baseboard, a baseboard guide rail is arranged on the baseboard, two sliding plates are slidably arranged on the baseboard guide rail, and a clamping mechanism, a driving mechanism and an adjusting mechanism are correspondingly arranged on each sliding plate; each clamping mechanism comprises a short roller mandrel fixed to the corresponding sliding plate; a glass clamping end is arranged at one end of each short roller mandrel, and is sleeved with an asbestos roller wheel, and a driving end is arranged at the other end of the corresponding short roller mandrel and is connected with a driving shaft of the corresponding driving mechanism; the adjusting mechanisms comprise pulling rods for controlling the sliding plates to slide and weights for adjusting clamping force of the asbestos roller wheels. By means of the integrated driving short roller device for pulling the glass, multiple driving short roller devices are installed on a mounting support to form an integrated structure and are installed at the two sides of an annealing furnace. The riving short roller device is independently arranged, one set of rollers oppositely stretch into the hot end annealing furnace from the two sides of the annealing furnace and clamp and pull the substrate glass from the two sides respectively, the manufacturing cost is low, and the integrated driving short roller device is convenient and flexible to adjust, and can be quickly installed and adjusted.

The invention discloses a lifting device for flywheel assembly. The lifting device comprises an inverted U-shaped lifting frame, a turntable articulated with the lifting frame through a connecting shaft, and a main disc which is in cup joint with the turntable and can rotate relatively in the plane of the turntable, wherein the connecting shaft is parallel to the plane of the turntable, the main disc comprises an outer ring which can be sheathed at the edge of a flywheel, and the outer ring is provided with a rotatable buckle which can fasten the flywheel and the main disc together. When the flywheel is lifted up, the main disc can rotate in the horizontal direction freely so as to fix the position of the flywheel conveniently. After the flywheel is lifted to a corresponding position, the main disc and the flywheel rotate horizontally towards the vertical direction; meanwhile, the main disc still drives the flywheel to rotate freely in the direction of the plane of the main disc so that the flywheel can be matched with a machine body and adjusted to be assembled on the machine body conveniently. Through adoption of the lifting device, the one-time lifting and assembling process of the flywheel is realized and the requirement on the angle adjustment of the flywheel in the assembling process is met.

The invention provides a split type drive short roller device for drawing glass. The split type drive short roller device comprises a horizontal sliding table mechanism, wherein the horizontal slidingtable mechanism comprises a bottom plate, wherein guide rails are arranged on the bottom plate, two sliding plates are arranged on the guide rails in a sliding manner, and a clamping mechanism, a drive mechanism and an adjusting mechanism are arranged corresponding to each sliding plate; each clamping mechanism comprises a short roller mandrel fixed on the corresponding sliding plate, one end ofthe short roller mandrel is a glass clamping end, the other end is a drive end, the glass clamping end of the short roller mandrel is sleeved with an asbestos roll wheel, and the axial direction of the short roller mandrel is vertical to the trend of the guide rails; each drive mechanism is fixed on the corresponding sliding plate, and a drive shaft of the drive mechanism is coaxially connected with the drive end of the corresponding short roller mandrel; each adjusting mechanism comprises a pull rod for controlling sliding of the corresponding sliding plate and counter weight for adjusting clamping force of the corresponding asbestos roll wheel. The drive short roller device is independently arranged, a group of rollers extend into a hot-end annealing furnace from the two sides of the annealing furnace oppositely and clamp and draw substrate glass on the two sides respectively, the manufacturing cost is low, and the flexible adjustment is convenient.

The invention relates to a piezoelectrically-driven spraying direction flexible adjustment device. The piezoelectrically-driven spraying direction flexible adjustment device comprises a spray head installation surface (21), a cantilever deformation zone (22) and an installation supporting zone (23), wherein the spray head installation surface (21) is composed of an elastic sheet (2) and a sheet (3) made of piezoelectric materials, the sheet (3) made of the piezoelectric materials adhere to the surfaces of cantilevers in the cantilever deformation zone (22), the installation supporting zone (23) is fixed to a required position during operation, voltage is exerted on the portion between the two electrodes of each sheet (3) made of the piezoelectric materials, bending deformation happens to the cantilever deformation zone (22), the normal direction of the spray head installation surface (21) is changed under the combined action of the deformation of all the cantilevers, a spray head (1) is fixed to the spray head installation surface, the spraying direction of the spray head is the same as the normal direction of the spray head installation surface (21), the spraying direction can be controlled by adjusting the deformation of all the cantilevers, and thus the direction of the spray head (1) is changed. The piezoelectrically-driven spraying direction flexible adjustment device has the advantages that the response frequency is high, the structure is simple, machining is convenient, digital control is facilitated, and the control precision is high.

The invention discloses an instant video display method and an electronic device and belongs to video field. The method comprises: acquiring a first display parameter input by a user, wherein the first display parameter is used for adjusting a display ratio of an instant video frame; displaying the instant video frame according to the first display parameter; acquiring a second display parameter if a screen is rotated, wherein the second display parameter is used for adjusting the display ratio of the instant video frame after screen is rotated; and displaying the instant video frame according to the second display parameter. The method adjusts the display ratio of the instant video frame according to the first display parameter or the second display parameter so as to increase the display modes and the effects of the instant video frame, satisfy a user requirement, and improve user experience.

The invention relates to a flexible endoscopic minimally invasive surgery instrument arm which comprises a front end executing device, a continuum sleeve, a steel wire flexible shaft and a steel wire flexible shaft driving device, the front end executing device is connected with one end of the steel wire flexible shaft, and the other end of the steel wire flexible shaft penetrates through the continuum sleeve to be connected with the steel wire flexible shaft driving device. The steel wire flexible shaft driving device can drive the steel wire flexible shaft to rotate and drive the front-end executing device to rotate around the axis of the front-end executing device. The steel wire flexible shaft connected with the front-end execution device is arranged in the continuum cannula, and the steel wire flexible shaft can be driven by the driving device to drive the front-end execution device to rotate around the shaft by 360 degrees, so that the front-end execution device has high surgical operation flexibility and can meet the adjustment requirements of various postures.

The invention discloses a novel automatic trace sample adding device. The device comprises a shell hinged with an outward turned cover, a spearhead storage unit, a spearhead recycling unit for recycling waste spearhead, a sample storage unit for storing samples and reagent, a bearing target plate and a target plate bearing unit for heating the reagent in the target plate are arranged on a horizontal platform in the shell at intervals; a liquid handling pump driven by a three-dimensional driving mechanism is arranged on the horizontal platform, an air purifying unit is arranged at an upper partof a right side plate of the shell, an ultraviolet sterilizing lamp is horizontally arranged at the upper part of a backboard of the shell, and a human-machine interaction unit is arranged at the outside of the shell. The sample adding device has the advantages of being simple in structure and high in sample adding precision; the automatic processing of the to-be-tested sample is realized, the sample adding operation is standardized, an identification result is good in repeatability; and the target plate sample adding operation is performed in the shell, and the security is high.

The invention provides a garlic bulbil direction adjusting device for a garlic planter, which enables the bulbil direction of garlic to be upward, and is rapid in response, high in efficiency, good in adjusting effect and high in operability. The garlic bulbil direction adjusting device comprises a driving shaft, a driven shaft, a shaft transmission mechanism and a plurality of garlic adjusting and planting mechanisms; the shaft transmission mechanism comprises a driving piece, a driven piece, and a middle flexible piece for connecting the driving piece with the driven piece; one end of the driving shaft is fixedly connected with a driving device of the garlic planter, and the other end of the driving shaft penetrates through the driving piece and is fixedly installed on a rack of the garlic planter; one end of the driven shaft is connected with the driven piece, and the other end of the driven shaft is fixedly installed on the rack of the garlic planter; the garlic adjusting and planting mechanisms are connected with the middle flexible piece and arranged at intervals.

The invention relates to a camera adjustment method and device, and the method comprises the steps: receiving an adjustment instruction of a user, wherein the adjustment instruction comprises the target image quality of adjustment; determining a camera parameter combination corresponding to the target image quality based on a pre-built model; and adjusting each camera parameter in the camera parameter combination according to the target image quality. Therefore, the method can meet the adjustment demands of a user, and also can improve the adjustment reliability and efficiency of the camera.

The invention discloses a method, a system and equipment for admission control, and belongs to the field of communication. The method comprises the following steps of: when the request of multicast video from a user is received, admitting the user to watch the multicast video only when ensuring that each multicast bandwidth management equipment has enough surplus bandwidth; and if the multicast bandwidth management equipment does not have enough bandwidth and borrowing of the bandwidth from unicast bandwidth management equipment fails, refusing the user to watch the multicast video. The system comprises the unicast bandwidth management equipment and the multicast bandwidth management equipment. By the method, the admission control based on a passive optical network is realized by the bandwidth consultation between the unicast bandwidth management equipment and multicast bandwidth management equipment at each layer, and the effects of the bandwidth consultation between two layers or among multiple layers is realized.

Disclosed are a brightness control device and a brightness control method. By the aid of a basic input / output unit, a chip or an embedded controller controls brightness of a display according to environmental conditions or an adjusting decision of a user, thus the needs of a user for adjusting are met or normal running of an electronic device is ensured.

The present invention proposes an intelligent cutting device, which includes a stand for carrying boards to be cut, a bracket mounted on the stand that can slide horizontally along a first direction, and a bracket that can slide horizontally along a second direction on the stand. The support cylinder below the bracket, the slide rod that extends into the support cylinder at one end and can slide up and down along the support cylinder, the turntable that can rotate 360 ​​degrees in the horizontal plane and is arranged under the slide rod, and the connecting rod that is connected to the bottom of the turntable and The first direction and the second direction are perpendicular to the cutter provided on one side of the connecting rod and used for cutting the plate body on the platform, which can be rotated. The intelligent cutting equipment can make the drive bracket, the support cylinder, and the sliding rod move in different directions and the turntable rotate, so as to realize the azimuth change of the cutter.

The invention provides a garbage can. The garbage can comprises an outer barrel, an inner barrel and a door cover, wherein the inner barrel is arranged in the outer barrel in a sleeving mode, and thedoor cover is hinged to the outer barrel; a partition plate is arranged in the inner barrel and is arranged in the height direction of the inner barrel, and the inner barrel is divided into a first containing cavity and a second containing cavity by the partition plate; the first containing cavity and the second containing cavity are used for storing garbage, compression of the garbage in the first containing cavity and the second containing cavity is separately realized by compression assemblies correspondingly arranged in the first containing cavity and the second containing cavity, furthermore, the garbage stored in the first containing cavity and the second containing cavity in the inner barrel can be separately compressed, so that different types of the garbage is prevented from polluting each other, and the cleanness of the compressed garbage in the garbage can is improved; the partition plate in the inner barrel can move in the horizontal direction, so that the sizes of the first containing cavity and the second containing cavity are adjusted to meet the adjustment requirements of users on different types of garbage storage space; and when the compression assemblies compressthe garbage in the inner barrel, compression plates move stably, and the compression efficiency and compression performance of the garbage can are improved.

The invention discloses a piece sorting mechanical arm, a piece sorting robot and a control method of the piece sorting robot. The piece sorting robot comprises the piece sorting mechanical arms in left-right symmetry; and each mechanical arm is composed of three right-angle moving units and a wrist portion mechanism. The control method includes the steps of single-arm moving and rotating control,double arm overturning cooperative control, multi-robot task allocating and a scheduling method. According to the technical scheme provided by the embodiment of the invention, one or more piece sorting robots are arranged above a conveying belt through a gantry mechanism, express items on the conveying belt are rotated and subjected to horizontal moving, specific face overturning and other operation. According to the piece sorting robot and the control method, the space is compact, movement control decoupling is achieved, the matching degree with the conveying belt is high, and fast deployingis achieved.

The invention provides a dual-DMD zooming infrared medium / long wave scene simulation system, which comprises an optical engine and a first mobile device used for driving the optical engine to move axially along an optical axis, wherein the optical engine comprises an infrared long wave illumination device, an infrared medium wave illumination device, a first DMD, a second DMD, a second mobile device, a projection device and a driving assembly; the infrared long wave illumination device emits infrared long wave light which irradiates onto a first DMD target surface, and the infrared medium waveillumination device emits infrared medium wave light which irradiates onto a second DMD target surface; the first DMD modulates the infrared long wave light into infrared long wave image light, and the second DMD modulates the infrared medium wave light into infrared medium wave image light; the second mobile device adjusts a relative spatial position of the first DMD and the second DMD; the projection device comprises a common aperture section and a dual-color beam combiner; and the driving assembly drives a zooming group of the common aperture section of the projection device to do axial motion. The dual-DMD zooming infrared medium / long wave scene simulation system can project an infrared dual-band simulated scene, can simulate energy distribution difference of different infrared bandson an image plane in the scene, directly illuminates the two DMD target surfaces by means of the two illumination devices, avoids interference between different optical paths by adopting a spatial three-dimensional layout, and can effectively improve system energy utilization rate and integration degree.

The invention aims at providing a soft lens clamping instrument which is convenient to fix and good in universality and an installation structure of the soft lens clamping instrument on a soft lens surgery assisting robot. The soft lens clamping instrument comprises a body and a clamping cover which is connected with the body in a matched mode, and the soft lens clamping instrument is used for clamping a soft lens between the clamping cover and the body. The soft lens clamping instrument is characterized in that a through screw hole is formed in the body, and a hollow bolt is arranged in the screw hole; the hollow bolt is provided with a strip-shaped through hole in the axial direction of the hollow bolt, an adjusting bolt is installed in the strip-shaped hole, and the diameter of a nut of the adjusting bolt is larger than the width of the strip-shaped hole. The installation structure of the soft lens clamping instrument on the soft lens surgery assisting robot comprises the robot and the soft lens clamping instrument, and the installation structure is characterized in that the robot is provided with a soft lens clamping instrument fixing plate, an installation screw hole is formed in the soft lens clamping instrument fixing plate, and the adjusting bolt of the soft lens clamping instrument penetrates through the hollow bolt and is screwed into the installation screw hole, so that the body is fixed to the soft lens clamping instrument fixing plate.

The invention provides a boiler with the adjustable heating area. The boiler comprises a hearth, a fire grate, a water collection barrel and a steam pocket. A water cooling wall is arranged in the hearth, the water cooling wall is connected with the water collection barrel and the steam pocket, at least two sets of water cooling adjusting walls are arranged in the hearth in the height direction, each set of water cooling adjusting walls comprise four to six water cooling adjusting walls surrounding the inner wall of the hearth and in matched connection with a reserved port. The heating area ofthe water cooling wall in the boiler can be adjusted, and the efficiency is improved.

The invention discloses an extractor hood. The extractor hood comprises a shell, a smoke absorbing port is formed in the shell, the extractor hood comprises an oil net installed on the smoke absorbingport, the oil net is inclined and fixed relative to the smoke absorbing port, the oil net is a flat plate body, and at least one side of the oil net is separated from the edge of the smoke absorbingport and forms a gap with the smoke absorbing port. The extractor hood well solves the problem that the oil smoke is large and urgent in the oil net through oil discharge gaps formed in the oil net and the smoke absorbing port, greatly reduces the oil pollution accumulation on the lowest surface of the oil net, and solves the problem that oil droplet particles are large and form a concentrated problem in a short period of time on the lowest surface of the oil net, so that most of the oil droplets can smoothly flow into an oil cup as soon as possible, oil pollution overflowing is not caused, the sanitary dead corner is reduced, and the extractor hood is easier to clean.

The invention discloses a sample inspection node early warning method, device and system, and a medium. The method comprises the steps of obtaining process nodes in a sample inspection project and setting a personalized early warning rule and / or a universal early warning rule of each process node; judging whether a current process node is provided with a personalized early warning rule and meets the personalized early warning rule or not, if so, sending an early warning message, and otherwise, judging whether the current process node meets a universal early warning rule or not; and sending an early warning message when the current process node meets the general early warning rule. According to the embodiment of the invention, through diversified configuration schemes, personalized early warning rules and universal early warning rules can be set according to different requirements in the sample inspection node control process of a laboratory, so that the adjustment requirements of different influence factors on process nodes are met; it is ensured that the sample can be ensured to complete inspection work timely and reliably under diversified inspection conditions, and the accuracy and reliability of the inspection result are improved.

The invention discloses a construction method for fast dismantling and replacement of a large-tonnage marine propeller. The new and old propellers are placed on the general steel bracket and prop hub supporting seat respectively, and the new and old propellers are carried by a flatbed truck to realize Safe and fast transposition and movement of large propellers, lifting old propellers out of dock, new propellers after smearing red lead, shifting on pack, pressing into place and loosening, longitudinal shifting away from stern shaft, flatbed pallet retracting Lift the platform, carry the propeller horizontally to the scraping operation place on the side of the ship, check and scrape the contact high point of the inner cone hole surface of the propeller hub, etc., and complete the renewal of the large propeller after the contact and cooperation of the inner cone hole surface meet the technical requirements Work. Compared with the prior art, the present invention has the characteristics of stable and reliable assembly quality, time-saving and labor-saving, high operating efficiency, short construction period, low cost, and few potential safety hazards.

The invention provides an air flotation four-dimensional adjusting platform and belongs to the field of air flotation equipment. The air flotation four-dimensional adjusting platform comprises a mounting base and a transition sliding platform; the mounting base is in a hollow cylindrical shape; the transition sliding platform comprises an air flotation plate at the upper end and a transition column which is perpendicularly arranged under the air flotation plate; the transition column and the mounting base are coaxially arranged; a moving gap is formed between the transition column and the mounting base; the air flotation plate covers the upper end surface of the mounting base; the surface between the air flotation plate and the mounting base is an air flotation surface; adjusting threadedrods connected through threads are arranged on the mounting base; the adjusting threaded rods are in contact with the transition sliding platform after penetrating through the mounting base; the number of the adjusting threaded rods is at least two; the two adjusting threaded rods are arranged to have an included angle of 90 degrees in the same horizontal plane; an angle sliding platform in contact with the spherical surface is arranged at the upper end of the transition sliding platform; an air flotation surface is arranged between the angle sliding platform and the transition sliding platform; and the rotation of the transition sliding platform is adjusted by using an angle adjusting rod. According to the air flotation four-dimensional adjusting platform, workpiece clamping position accurate and fine adjustment during part machining, measuring and precision repairing can be realized, and the part manufacturing and measuring accuracy is improved.

The invention discloses a settlement adjusting method and system suitable for a ballastless track with a retaining shoulder, and belongs to the technical field of rail transit. A settlement adjustingunit comprising a cast-in-place boss, a base, an elastic strip buckling and pressing assembly and a ballast bed connecting assembly is arranged between blocking shoulder rail bearing tables of a ballast bed settlement section, and by means of corresponding arrangement of the set height of the cast-in-place boss and corresponding optimization of the pre-buried position of an insulating sleeve, height adjustment and rail gauge adjustment of a steel rail after ballast bed settlement can be accurately achieved. In the settlement adjusting method and system suitable for a ballastless track with a retaining shoulder, the settlement adjusting system is simple in structure, settlement adjustment step is simple and convenient, the device can be fully suitable for height adjustment and track gauge adjustment during ballast bed differential settlement, the efficiency and precision of steel rail settlement adjustment are improved, the high smoothness of the steel rail is fully guaranteed, the operation quality of a high-speed railway is improved, the maintenance cost of the ballastless track with the retaining shoulder is reduced, and the device has good application prospects and popularization value.

The invention provides a transportation cart with the capability of improving the comfort level of a user. The transportation cart comprises a bottom plate, a pushing device and a supporting device, wherein the bottom plate is provided with a first side wall and a second side wall; the first side wall and the second side wall are arranged on the two opposite sides of the bottom plate; a movable through hole which penetrates through the first side wall and the second side wall is formed in the bottom plate; a roller is installed at the lower part of a base; the pushing device is composed of a hand rod and two supporting rods; a positioning frame is installed on the corresponding supporting rod; a movable cover is movably installed on the corresponding positioning frame; a first meshing groove is formed in the interior of the corresponding movable cover; the supporting device is composed of a movable frame and two positioning rods; the movable frame is movably installed in the movable through hole; the first ends of the two positioning rods are rotationally installed at the two ends of the movable frame respectively; the second ends of the two positioning rods are rotationally installed on the two supporting rods respectively, corresponding to the positioning frames; and in addition, meshing teeth which are matched with the first meshing grooves are formed at the second ends of the two positioning rods respectively. The transportation cart reduces the possibility about falling goods and improves the using comfort level of a user.

The present invention discloses a method for processing a face in an instant video and an electronic device, and belongs to the field of image processing. The method comprises: acquiring a scale of a reference face; and adjusting the face in a current instant video frame according to the scale of the reference face. According to the method for processing the face in the instant video and the electronic device, which are provided by the present invention, by adjusting the face in the current instant video according to the scale of the reference face, the scale of the face in the current instant video is changed, so that the requirement that a user can adjust the scale of the face in the process of instant video is satisfied, the instant video effect of the user is improved, and the user experience is improved; meanwhile, by adjusting the face scale of the user according to the scale of the reference face, satisfaction of the user to face adjustment can be improved, and the instant video can be performed in the face scale, so that the user is more willing to perform a video call, and thus, the conventional problem that the user is unwilling to perform instant video due to the face scale is avoided, and the user experience is improved.

The invention relates to an adjusting device for an optical centering instrument. The adjusting device aims at solving the problems of low adjustment precision and inconvenient operation of the optical centering instrument in the prior art, realizing rapid and accurate adjustment of the translation amount and the inclination angle of the optical centering instrument in the optical centering processing process, and improving the efficiency of centering machining. The adjusting device comprises a four-dimensional adjusting mechanism, a connecting frame and a multitap frame, the four-dimensionaladjusting mechanism comprises an X-axis angle adjusting table, a Y-axis angle adjusting table, an X-axis translation adjusting table and a Y-axis translation adjusting table which are sequentially arranged from top to bottom, the lower end of the Y-axis translation adjusting table is connected with an upper end platform of a vertical lathe through the connecting frame, the upper end of the X-axisangle adjusting table is connected with the optical centering instrument through the multitap frame, and the optical centering instrument is located below the Y-axis translation adjusting table. According to the adjusting device, the optical centering instrument and the four-dimensional adjusting mechanism are connected together, and through adjustment of the four-dimensional adjusting mechanism,two directional translation and two directional angles of the optical centering instrument can be adjusted.

The invention relates to freezing and refrigerating equipment, a control method thereof and a computer readable storage medium. The control method of the freezing and refrigerating equipment comprises the steps of sampling the current humidity in a cabinet periodically in the running process of a compressor; calculating the historical average humidity in the cabinet according to the current humidity in the cabinet and the historical humidity in the cabinet; and calculating a humidity difference value between the historical average humidity in the cabinet and a set humidity, judging whether the humidity difference value is not greater than a first preset humidity threshold value or not, if the humidity difference value is not greater than the first preset humidity threshold value, switching the freezing and refrigerating equipment into a frequency-limited humidity control mode, in the frequency-limited humidity control mode, comparing the historical average humidity in the cabinet corresponding to the current sampling moment with the historical average humidity in the cabinet corresponding to the previous sampling moment, and if the historical average humidity in the cabinet corresponding to the current sampling moment is smaller than the historical average humidity in the cabinet corresponding to the previous sampling moment, downwards adjusting the current allowable highest operation frequency of the compressor from the allowable highest operation frequency corresponding to the refrigeration mode.

The invention discloses a projector lens adjusting device comprising a fixing member (3) and a fixed lens integrated unit (13). The fixing member (3) is provided with the fixed lens integrated unit (13). The fixing member (3) is provided with an adjusting structure controlling the fixed lens integrated unit (13). The projector lens adjusting device has a simple and novel structure. The internal structure of the lens is modified; and with an adjusting mechanism, the lens position is adjusted in all directions, so that the lens is installed conveniently and the adjusted simply. The installationand use efficiency is improved substantially.