71results about How to "Meet the needs of different environments" patented technology

The invention discloses a wireless video conference system and a method for adding a common voice user, which is used for resolving the problem that the wireless video conference system is not capable of adding the common voice user into the conference system. The invention adds the common voice user into the wireless video conference by a wireless video conference terminal, and the wireless video conference terminal is in charge of converting a voice frequency into a video data format, and sending the voice data of the common voice user to each part participated in the wireless video conference in a video information format; and the voice frequency date is extracted from the video data to be sent to the common voice user, so that a common voice user terminal is capable of receiving the voice frequency data from the wireless video conference. The invention is capable of adding the common voice user terminal without the video function into the video conference, thus not only satisfyingthe user video conference function, but also being compatible with low-end user terminals, and strengthening the compatibility of the wireless video conference system.

The invention relates to the field of robot rotary joint driving, in particular to a shape memory alloy driving device for a rotary joint and a design method for the shape memory alloy driving device. The shape memory alloy driving device comprises a driving mechanism and a drive, wherein the driving mechanism comprises a tail-end execution member, a crank, a connecting rod and a sliding block; one end of the crank is connected onto the tail-end execution member through the rotary joint; the connecting rod is connected onto the other end of the crank through the rotary joint; a sliding block is movably connected to the other end of the connecting rod; the drive comprises a guide rail and an elastic body; a sliding block of the driving mechanism is movably arranged on the guide rail of the drive and can freely slide in the guide rail; a first spring and a second spring which are made of the shape memory alloy are respectively and fixedly connected to two ends of the guide rail; the sliding block of the driving mechanism is fixedly connected between the first spring and the second spring; and a feedback control circuit is respectively connected to the first spring and the second spring through leads and is used for controlling the power on / off states of the first spring and the second spring. According to the shape memory alloy driving device disclosed by the invention, the adaptability for the mounting space is strong and the matching between the shape memory alloy driving device and the mounting space can be adjusted.

The invention discloses a dust-settling device for civil engineering. The dust-settling device comprises a box body and a base, wherein the base is arranged below the box body, the base and the box body are fixedly connected with each other by a lifting mechanism, the base is provided with an auxiliary transport mechanism, a partition is arranged horizontally inside the box body, a reservoir is arranged in the part, below the partition, in the box body, a liquid pump is arranged in the reservoir, a water supply pipe is arranged in the middle position of the upper end of the box body in a penetrating manner, the lower port of the water supply pipe is connected with the water outlet end of the liquid pump through a water transport pipe, a rotating box is rotatably arranged at the upper opening of the water supply pipe, and an electromagnetic valve II is arranged on the water supply pipe, close to the rotating box. The dust-settling device has the advantages of simple and reasonable structure, convenient transportation and height adjustment, ensures the stability during operation, can also achieve two types of dust removal, including external dust settling and internal dust settling,meet the needs of different environments and has strong practicability.

The invention relates to the technical field of traffic lamps, and discloses an intelligent traffic signal lamp based on big data. The signal lamp comprises a stand column, a cross rod is arranged atthe top end of the stand column, a main motor is fixedly mounted at the bottom end of an inner cavity of the stand column, a fixed rod is fixedly mounted at the top end of an output shaft of the mainmotor, and an internal thread is formed in the inner side surface of the fixed rod. According to the intelligent traffic signal lamp based on big data, a movable rod and the fixed rod are connected ina threaded and sleeved mode, therefore, the movable rod can move up and down relative to the fixed rod while the fixed rod rotates; the cross rod is further driven to move up and down; at the moment,sliding strips are fixedly installed at the front end and the rear end of the portion, located on the stand column, of the cross rod and movably connected with sliding grooves in the stand column ina clamped mode, and thus the cross rod can ascend and descend along with ascending and descending of the movable rod, the height of a main indicator lamp is further adjusted, requirements under different environments are met, and the advantage of adjusting the height of the traffic signal lamp is achieved.

The invention relates to a method for preparing a biomaterial with controllable antibacterial and blood-coagulation properties, good biocompatibility and certain self-repairing properties by using by-product gelatin extracted from leather waste as a raw material. The method uses glutamine transaminase to modify the gelatin, the modified gelatin, polylysine and cucurbit[7]uril are mixed to preparethe biomaterial that meets the needs of human bodies in different environments. The method has a simple preparation process and is easy to operate, no harmful chemical substances are added in the whole process, no secondary pollution is caused to the environment, and the biomaterial is expected to have better application prospects in the future.

The invention discloses an optical fiber end face micro-cantilever sensor and a preparation method thereof. The optical fiber end face micro-cantilever sensor comprises an optical fiber and a cantilever beam structure. The cantilever beam structure is polymerized on one end surface of the optical fiber through a femtosecond laser two-photon polymerization technology; the cantilever beam structurehaving a polymer structure comprises a support column and a micro cantilever beam; the micro-cantilever is parallel to the end face of the optical fiber. The optical end face micro-cantilever beam prepared by a femtosecond laser two-photon polymerization technology is made of a polymer material and has elasticity higher than that of a silicon-based material, so that the detection sensitivity is greatly improved; the preparation method belongs to additive manufacturing and realizes integration of the optical fiber and the cantilever beam, and the structure is compact; no damage is caused to theoptical fiber; meanwhile, the machining time is saved, and the manufacturing mode is more flexible. The optical fiber end face micro cantilever beam cured by the femtosecond laser two-photon polymerization technology has the characteristics of small size and high elasticity, and can be applied to multiple fields.

The invention discloses a brightness adjusting method and device, electronic equipment and a storage medium, and belongs to the technical field of communication. The brightness adjusting method comprises the following steps: acquiring reference brightness of the electronic equipment; obtaining a brightness adjustment parameter, wherein the brightness adjustment parameter comprises a pupil state of a pupil of a user or a relative position relation between the pupil of the user and the electronic equipment; and adjusting the reference brightness by using the brightness adjustment parameter. According to the brightness adjusting method provided by the embodiment of the invention, the brightness of the electronic equipment is adjusted by obtaining the brightness adjustment parameters, and the brightness adjustment is simple and rapid, and the finally obtained brightness better meets the actual demand of a user.

The invention provides a cycloid propeller fan, which includes a fan base, a driving motor and a blowing mechanism; the driving motor is fixed in the fan base, and a power output shaft of the driving motor is connected with a fan rotating shaft in the blowing mechanism and drives the fan rotating shaft to rotate; the blowing mechanism includes blades, the fan rotating shaft, an upper end plate, a lower end plate and an eccentric ring positioning mechanism; and the eccentric ring positioning mechanism includes a control pull rod, an eccentric rotating ring and an eccentric hollow cylinder positioning table. The cycloid propeller fan provided by the invention does not need to shake the head, the blowing direction of a cycloid propeller can be changed by changing the eccentric azimuth angle of the eccentric rotating ring through a steering engine, and the defect that the conventional fan cannot blow in all directions is solved; and the eccentricity of the eccentric rotating ring is adjusted to change the blade attack angles and realize the continuous adjustment on the wind speed of the fan, so that the defect that the existing fan has only fixed gears is overcome, and the demands of different people in different environments can be met.

The invention discloses an extensible and beam-controllable directional sound wave transmitting device, which belongs to the technical field of directional sound wave transmitting. The directional sound wave transmitting device comprises an audio digitization unit, a signal processing unit, a signal amplification circuit and a parametric array, wherein the audio digitization unit is electrically connected with the signal processing unit; the audio digitization unit is used for digitizing an audio file; and the signal processing unit is used for realizing preprocessing, modulation and control processing of audio signals, outputting modulation signals output by the signal processing unit to a rear-stage parametric array after the modulation signals pass through the signal amplification unit,transmitting the modulation signals to a nonlinear medium through the parametric array, and generating directional sound waves through the nonlinear effect of the nonlinear medium. Sound is directionally projected to a specific area, sound interference of other areas is reduced, and noise pollution is reduced.

The invention discloses a novel box-type illumination lamp which comprises a supporting rod, a clamping protrusion, a rotary table, a right fixed seat, a box body, springs, bases, foam plastic and a partition plate. The supporting rod is arranged on one side of the box body. The right fixed seat is arranged at the upper end of the box body, and the bases are arranged at the lower end of the box body. The partition plate is arranged in the box body, and the foam plastic is arranged on the inner wall of the box body. The clamping protrusion is arranged on one side of a telescopic rod in an embedded manner. The rotary table is arranged at the upper end of a lantern ring in an embedded manner. The corresponding spring is arranged in each base. The novel box-type illumination lamp is scientific and reasonable in structure and safe and convenient to use; through the arrangement of the springs and the bases, sliding wheels can have the shock absorption effect; through the arrangement of the rotary table, the left-and-right irradiation angle of the illumination lamp can be conveniently changed by a user; through the arrangement of the clamping protrusion, the user can conveniently put the clamping protrusion in a clamping ring to change the height of the illumination lamp; and through the arrangement of the foam plastic, the user can conveniently and effectively protect the demounted illumination lamp.

The invention provides a noise reduction earphone, and relates to the technical field of earphones. The noise reduction earphone provided by the invention comprises an earphone body, an environment sound guiding channel and a valve, wherein the environment sound guiding channel is located in the earphone body, a first end of the environment sound guiding channel communicates with the outside, and the second end of the environment sound guiding channel is used for communicating with an ear canal; and the valve is arranged in the environment sound guiding channel and used for controlling a conduction state of the environment sound guiding channel. The noise reduction earphone provided by the invention can be easily switched between a full in-ear mode and a half in-ear mode, the earphone does not need to be modified and disassembled in an operation process, requirements of different people in different environments are met, and the earphone is more comfortable to wear and has higher adaptability.

The invention relates to blade ice removing equipment and a blade ice removing method applied to a wind generating set. The blade ice removing equipment comprises an ice removing unit, a temperature detecting unit and an embedded type control unit, wherein the ice removing unit is used for removing ice from each blade; the temperature detecting unit is used for detecting the temperature of each blade; and the embedded type control unit is used for determining whether to control the ice removing unit to implement ice removal operation or not according to a received freezing signal from an external device and determining whether to control the ice removing unit to stop the ice removal operation or not according to a detected temperature value detected by the temperature detecting unit.

The invention discloses a mechanical arm transferring device. The mechanical arm transferring device comprises a lifting assembly, a cross beam assembly, a tong assembly, a rotary base and a telescopic bottom frame, wherein the rotary base is fixed on one side of the upper end of the telescopic bottom frame, the other side of the upper end of the telescopic bottom frame is fixedly provided with afixing frame, an electric wire winding roller is fixed on the side edge of the fixing frame, and a movable rolling wheel is fixed at the bottom of the lower end of the telescopic bottom frame. According to the mechanical arm transferring device, the working operation of the mechanical arm transferring device is realized through the cooperation of a motor and a rope, the trouble of the original operation of the mechanical arm transferring device is avoided, the structure is simplified, the production cost is reduced, and the use requirement is met. According to the mechanical arm transferring device, the tong assembly, a supporting beam, a supporting column and the fixing frame are fixed through a shaft pin or a hinge, so that the tong assembly, the supporting beam, the supporting column and the fixing frame can be folded, the folding transferring device reduces the occupied volume, and daily transportation and storage are facilitated.

The invention relates to a dust-removing filter bag. According to the invention, the lower end of a mounting plate is provided with a fixed drum; two through holes are arranged on the mounting plate;the upper ends of the through holes are provided with sealing assemblies; the lower ends of two through holes are respectively provided with a first cage frame and a second cage frame which are arranged on the mounting plate; the interiors of the first cage frame and the second cage frame are respectively provided with a first filter bag body and a second filter bag body; the lower ends of the first cage frame and the second cage frame are respectively connected with a fixed iron block through a spring; an electromagnet is arranged below each fixed iron block; each electromagnet is arranged ona telescopic rod; the inner walls of two sides of the fixed drum are respectively provided with a compression cylinder; compression plates corresponding to the first cage frame and the second cage frame are respectively arranged at the front ends of two compression cylinders; a slidable supporting block is arranged between two telescopic rods; two clamping cylinders are symmetrically arranged onthe supporting block; and the front end of each clamping cylinder is provided with a clamping plate. The dust-removing filter bag provided by the invention can rapidly and effectively fix the positions of two filter bag bodies firmly, is convenient for installation and maintenance, and can adjust the opening size of the filter bag bodies at the same time.

The invention discloses wall decoration paint and a wall decoration paint preparation device. The wall decoration paint comprises the following components in parts by weight: 30-40 parts of acrylic based emulsion, 7-8 parts of an acrylic dispersant, 45-50 parts of epoxy resin, and 10-15 parts of an epoxy resin curing agent. The wall decorative paint provided by the embodiment of the invention is strong in adhesion to wall surfaces and not easy to fall off, and can meet actual use requirements.

The invention discloses a tower type energy dissipation device for ship interception. The tower type energy dissipation device is characterized by comprising at least one group of energy dissipation units; each energy dissipation unit comprises a barrel body, an end cover and a plurality of sliding sleeves, wherein the sliding sleeves are arranged in the barrel body and are connected in sequence from inside to outside in a sleeved mode; each end cover is fixedly connected to the front end of the corresponding barrel body; a front positioning convex ring is integrally arranged at the front endof each sliding sleeve; a rear positioning convex ring is integrally arranged at the rear end of each sliding sleeve; an elastic belt is fixedly connected to the front end of each sliding sleeve and is fixedly connected to the corresponding end cover; a first mooring rope is fixedly connected to the sliding sleeve located at the innermost part and penetrates out of the rear end of the corresponding barrel body; and a second mooring rope is fixedly connected to the corresponding end cover. The tower type energy dissipation device has the advantages that when a ship impacts an intercepting device, the energy dissipation device dissipates energy in a mode that the sliding sleeves move to stretch the elastic belts to be fractured, the energy dissipation is large, in addition, the energy dissipation device can be applied to interception of ships with different tonnage, the requirements of different environments can be met, and the flexibility and the universality are good; and in addition,the whole energy dissipation device is convenient to maintain, disassemble and assemble.

The present invention provides a high-precision symbol synchronization system which comprises a time error detector, a time error filter, an interpolation controller and an interpolation filter, the time error detector is used for preliminarily estimating a time error between a receiver and a transmitter in the communication system according to externally input data for carrying out N times of sampling on a single symbol in the communication system to obtain a time error rough estimation value; the time error filter is used for determining a time error fine estimation value according to the time error rough estimation value; the interpolation controller is used for adjusting the data sampled by N times according to the time error fine estimation value, outputting the adjusted data, and determining a fractional pointer required by the interpolation filter according to the time error fine estimation value; and the interpolation filter is used for carrying out interpolation operation on the adjusted data according to a fractional pointer required by the interpolation filter to obtain data finishing symbol synchronization, so that high-precision symbol synchronization is realized.

The invention discloses a high-strength antistatic composite pipe. The composite pipe is prepared from, by weight, 25-40 parts of polyethylene, 10-15 parts of graphene, 20-28 parts of polylactic acid,15-23 parts of reinforced fibers, 4-8 parts of carbon black, 5-7 parts of a flame retardant, 1-3 parts of an antioxidant, 2-4 parts of a coupling agent and 3-5 parts of a plasticizer. The invention provides a high-strength antistatic composite pipe, the high-strength antistatic composite pipe has corrosion resistance performance, anti-oxidation performance, high-low-temperature resistance and wear resistance and antistatic performance, and demands of different environments are met.

The invention provides a sight glass light for monitoring material conditions in a container and a pipeline. The sight glass light is composed of a sight glass and a sight glass light body, wherein the sight glass light body comprises a light source, a light body, a power supply actuator, a reflective board and an anti-glare board. The sight glass light for monitoring material conditions in the container and the pipeline is characterized in that the light source is a light-emitting diode (LED) light source, the LED is arranged in the middle of a horn type reflective mirror, the reflective mirror is fixed on a shell body through a support, the anti-glare board is arranged right ahead of the LED light source, a front end cap is arranged outside the anti-glare board, the LED light source is glued on an aluminum substrate through silica gel, the aluminum substrate is fixed on a radiator, the power supply actuator provides stable direct current power for the LED light source, and back end caps are arranged at the front part of the light body and the back part of the light body. The sight glass light is suitable for containers and pipelines of production devices in industries of petroleum, chemical engineering, medicine and food and the like, and the sight glass light can be used for observing flowing and reaction conditions of mediums of liquid, gases, vapor and the like in the pipelines at any time, and plays a role of monitoring production, and avoiding accidents in the production.

The invention discloses an intelligent home system based on changes of human heart rate. The intelligent home system based on the changes of human heart rate comprises a heart rate collection device, a transmission module, a cloud, a control module and an intelligent home; wherein the heart rate collection device is used for collecting the heart rate information of users; the transmission module is used for transmitting the heart rate information collected by the heart rate collection device; the cloud is used for receiving, analyzing and processing the heart rate information of the users, and providing a mode adjustment information to the intelligent home; and the control module is used for performing corresponding adjustment on the current intelligent home according to the received mode adjustment information of the intelligent home. By means of the intelligent home system based on the changes of human heart rate, the intelligent mode of the intelligent home is automatically adjusted based on the changes of human heart rate, therefore, the intelligent home system based on the changes of human heart rate is more humanized, the automation degree is high, and the real intelligence is realized.

The invention particularly provides a computer adapter with a movable plug, which comprises an adapter shell, a computer connecting line and an external power line. A power line insertion hole is formed in the side edge of the adapter shell; a groove is formed in the upper surface of the adapter shell; an electric plug is placed in the groove; the electric plug is provided with a jack; the external power line is provided with a metal connector; one end of the external power line is connected with the power line insertion hole; the other end of the external power line is connected with the jack on the electric plug by the metal connector. According to the computer adapter, the electric plug on the external power line is the movable electric plug and can be replaced with different types of electric plugs; the requirements of people in different environments are met; convenience is brought to life of people.

The invention discloses a voltage-following combustible gas detection and alarm system based on surge protection, which is characterized in that it is mainly composed of a control chip U3, a triode VT1, an amplifier P, a gas sensor Q and the like. The present invention sends out an alarm sound when the concentration of combustible gas is too high, its sensitivity is high, and it can effectively play a warning role; meanwhile, the present invention can adjust the alarm threshold value according to different environments, so as to meet the needs of use in different environments. The invention can stabilize voltage, prevent voltage fluctuation and false alarm phenomenon.

The invention provides a cycloid propeller fan, which includes a fan base, a driving motor and a blowing mechanism; the driving motor is fixed in the fan base, and a power output shaft of the driving motor is connected with a fan rotating shaft in the blowing mechanism and drives the fan rotating shaft to rotate; the blowing mechanism includes blades, the fan rotating shaft, an upper end plate, a lower end plate and an eccentric ring positioning mechanism; and the eccentric ring positioning mechanism includes a control pull rod, an eccentric rotating ring and an eccentric hollow cylinder positioning table. The cycloid propeller fan provided by the invention does not need to shake the head, the blowing direction of a cycloid propeller can be changed by changing the eccentric azimuth angle of the eccentric rotating ring through a steering engine, and the defect that the conventional fan cannot blow in all directions is solved; and the eccentricity of the eccentric rotating ring is adjusted to change the blade attack angles and realize the continuous adjustment on the wind speed of the fan, so that the defect that the existing fan has only fixed gears is overcome, and the demands of different people in different environments can be met.