112results about How to "Control frequency" patented technology

The invention discloses a device used for quick online nondestructive detection on cracks of poultry eggs on the basis of acoustic characteristic and a method thereof; the poultry egg is arranged on a supporting idler wheel; a stepping motor is connected with the supporting idler wheel and drives the supporting idler wheel; a microphone which is arranged beside the poultry egg is sequentially connected with a computer by a signal amplifier, a filter and an A/D converter; when the poultry egg rolls on a chain, different parts of the poultry egg are mechanically knocked at multi-point by a knocking rod; sound signals collected by the microphone are amplified by the signal amplifier, filtrated by the filter and converted by the A/D converter and subsequently input to the computer, thus comprehensively judging the cracking situation of the poultry eggs. The device and the method can adapt to poultry eggs with different types and different sizes, realize the classification and automatic detection of the poultry eggs during the production processing and circulation process, and can be popularized and applied to the nondestructive detection on the hardness and the maturity of agricultural products such as fruits, vegetables, and the like.

To provide an air conditioner carrying out defrosting operation while continuing heating operation. This air conditioner comprises a first bypass circuit connecting the suction side of a compressor between an indoor heat exchanger and a decompressor of a heat pump type refrigeration cycle, the first bypass circuit including a two-way valve and a refrigerant heater; and a second bypass circuit connecting a part between a four-way valve connected to the refrigeration cycle and the indoor heat exchanger to a part between the decompressor and an outdoor heat exchanger, the second bypass circuit is provided with two-way valve. When defrosting the outdoor heat exchanger is performed, the two-way valve of the first bypass circuit and the two-way valve of the second bypass circuit are opened to guide current to the refrigerant heater for heat storage prior to the defrosting operation, and the defrosting operation is performed while continuing heating.

An integrated ramp, sweep fractional frequency synthesizer system on an integrated circuit chip includes an integrated circuit chip having a fractional frequency synthesizer with a fractional divider responsive to a VCO and a ΔΣ modulator for modifying the divisor of the fractional divider; and a ramp generator on the same integrated circuit chip; the ramp generator being responsive to a trigger signal to generate a ramp for sweeping the frequency of said fractional frequency synthesizer.

The invention discloses a manual gear fuel vehicle idle wobbling simulation method, system and device which are applied to an electric vehicle. Idle wobbling of a manual gear fuel vehicle is simulatedin a rotating speed control mode in the manner that the target rotating speed of the electric vehicle is subjected to wobbling adjustment. Compared with a motor torque control mode, the response speed is higher. Accordingly, the wobbling frequency and wobbling amplitude of the electric vehicle can be controlled well, and idle wobbling of the manual gear fuel vehicle can be simulated better. Thus,the electric vehicle, as a driving school vehicle, saves the fuel cost and reduces emission pollution. Moreover, the driving experience, namely, idle wobbling, of the manual gear fuel vehicle can besimulated better, and the driving habits of a traditional driving school fuel vehicle are maintained.

The invention discloses a communication method and a wireless communication device, and the method comprises the steps that the wireless communication device sends a first request message to a first cell, and the first request message is used for requesting to release the wireless connection between a first user and the first cell; the wireless communication device receives a response message fromthe first cell, wherein the response message is used for responding to the first request message; and the wireless communication device sends a second request message to the second cell, wherein thesecond request message is used for requesting to establish the wireless connection between the second user and the second cell.

The invention discloses an earphone-type transcranial micro current stimulation device, which is used for treating depression and insomnia, releasing pressure and adjusting emotions. The device comprises earplug-type stimulation electrodes, a central control unit, a stimulation wave generation unit, a power management unit and a mobile phone control app. The transcranial micro current stimulation device is integrated with the earphones, and apart from the additional stimulation device, the appearance of the whole device is the same as that of commonly-used earplug-type earphones. The mobile phone app communicates with the central control unit via a Bluetooth for controlling the whole micro current stimulation process; the central control unit controls the strength, the frequency and the waveform of stimulation waves through controlling the stimulation wave generation unit; the stimulation electrodes and the earphone earplugs are integrated, and stimulation current carries out micro current stimulation on the brain via auricles; and the stimulation device has functions of the common earphones, the mobile phone app can download relaxing music according to requirements of the user, the stimulation device is inserted in a mobile phone earphone interface and then, micro current stimulation treatment and music treatment can be carried out at the same time.

The invention provides an air conditioning system, a control method of the air conditioning system and an air conditioner. The air conditioning system comprises a compressor. The control method of theair conditioning system comprises the following steps that the exhaust temperature Td of the compressor, the back temperature Ts of the compressor, the exhaust pressure Pc of the compressor, the backpressure Pe of the compressor and the outdoor environment temperature T4 are acquired; the first saturation temperature Tc corresponding to the exhaust pressure Pc and the back superheat degree SH are acquired; according to the exhaust temperature Td, the first saturation temperature Tc and the back superheat degree SH, whether an exhaust temperature sensor of the air conditioning system loses efficacy or not is judged; if the exhaust temperature sensor loses efficacy, the frequency of the compressor is adjusted according to the back superheat degree SH. According to the control method of theair conditioning system, after the exhaust temperature sensor loses efficacy, the frequency of the compressor is adjusted through the back superheat degree SH, then the frequency of the compressor can still be effectively controlled, then the air conditioning system can still keep the normal operation state, and the reliability of the air conditioning system can be improved.

The invention discloses a continuous wave radio frequency four-level accelerator water cooling system. A water cooling pipeline is arranged in an air foil. The air foil is in a structure of a sharding. The water cooling pipeline is in a plate-box snake shape and is arranged on an abutting joint surface of the sharding of the air foil. A welding flux groove is arranged around the water cooling pipeline. Meanwhile, the invention discloses a manufacturing method for the water cooling system. The continuous wave radio frequency four-level accelerator water cooling system and the manufacturing method of the continuous wave radio frequency four-level accelerator water cooling system have the advantages that compared with a through straight line water cooling pipeline, the size of the snake-shaped water cooling pipeline is increased, the water cooling is thorough and efficiency is high. The problem of heat dissipation of a radio frequency four-level accelerator operating under the continuous wave is solved. Heat dissipation performance is greatly improved, frequency of the radio frequency four-level accelerator can be precisely controlled and stability of a beam current is guaranteed, thus acceleration performance is enabled to be effectively stabilized and improved. Tightness when the water cooling pipeline is operated for a long time in the inner portion of the air foil in an electron beam welding mode in a manufacturing process is guaranteed and high purity of oxygen-free copper materials is guaranteed. Integrity and solidity of the sharding air foil and structural reliability and working stability of the continuous wave radio frequency four-level accelerator are strengthened by brazing.

The invention discloses a control method of an air conditioner. The air conditioner comprises a compressor. The operation frequency of the compressor has a plurality of operation ranges through setting. The different operation ranges are in one-to-one correspondence with different preset temperature ranges. The control method comprises the following steps that 1, the temperature value T1 in a room where the air conditioner is located is collected; and 2, the obtained temperature value T1 is compared with the temperature value Ts set by a user, and the frequency operation range of the compressor is adjusted according to a comparison result. A control device comprises a temperature collecting module and a compressor frequency control module. According to the control method and device of the air conditioner, the operation frequency of the compressor is controlled through temperature change, the refrigerating capacity of the air conditioner is adjusted intelligently, the intelligence level of the air conditioner is improved, and the experience of the user to the air conditioner is better; and in addition, through the control method and device, energy consumption of the air conditioner is reduced, and the energy saving effect of the air conditioner is better.

The invention discloses a photo-stimulation and signal acquisition probe, which comprises a probe substrate, wherein the probe substrate comprises a front end part and a rear end part, wherein the front end part, which is of a sharp structure, is implanted in an organism, and the front end part is provided with a sensor and a light emitting source; and the rear end part is provided with a sensor electrode electrically connected to a sensor, a light emitting source electrode electrically connected to the light emitting source and a public electrode. The probe provided by the invention, which is simultaneously integrated with a light emitter light emitting unit and a sensor detection unit for photo-stimulation, can facilitate operations.

A positioning control apparatus for controlling a moving member to trace the position of a target member which almost equally repeats the position shift at a predetermined period comprises a position detector for detecting a relative position error, a first adder for adding a delay signal and a position error signal, a signal delay unit for outputting the delay signal which is obtained by delaying an output signal of the first adder at a period corresponding to the position shift of the target member, a second adder for adding the position error signal and the delay signal, a third adder for adding an output of the second adder and the delay signal via a filter, a compensating unit for performing the compensation for offset and/or the compensation for stabilization of the positioning control apparatus based on an output of the third adder, a drive unit for driving the moving member based on an output of the compensating unit, and a delay-amount setting unit for setting the amount of delay of a signal delayed by the signal delay unit.

The invention discloses a method for generating micro-droplets by controlling a flow focusing type microfluidic chip through a vibration pipeline. According to the method disclosed by the invention, in a system for generating the micro-droplets through the flow focusing type microfluidic chip, mechanical vibration with controllable amplitude and frequency is applied to a dispersion-phase fluid pipeline of the outer part of the chip through a mechanical vibrator, and the generation of the micro-droplets in the flow focusing type microfluidic chip is controlled. According to the method disclosedby the invention, the amplitude and frequency of the mechanical vibrator of the outer part are controlled to realize the aims of generating the micro-droplets with different sizes, controlling the generation frequency of the droplets and also improving the generation frequency of the micro-droplets.

The invention relates to the field of LED lights, particularly to a signal informing device. The device comprises an LED light, a central processing unit (CPU) and a terminal device which is connected with the LED light, wherein the LED light is provided with an LED display chip connected with the CPU; the terminal device comprises a terminal application program module, a terminal audio program module and a terminal scene preset module which are connected with the CPU, wherein the terminal scene preset module is used for presetting according to the terminal application program module and the terminal audio program module; and the CPU is used for receiving and processing information of the modules and the LED display chip is used for displaying signals of the CPU. The device informs users of information under different conditions received by the terminal device, reveals a variety of information received by the terminal device accurately, practically and flexibly, and controls the color, the brightness, the frequency and the like of the light by using the terminal device.

The invention discloses a miniaturized broadband power divider circuit based on spur lines. The circuit includes a first port (1), a second port (2), a third port (3) and an isolation resistor (R1), wherein the isolation resistor (R1) is arranged between the second port (2) and the third port (3), a transmission path from the first port (1) to the second port (2) adopts a microstrip line, a transmission path from a first port (1) to a third port (3) adopts a microstrip line, a first spur line (20) is arranged on the microstrip line of the transmission path from the first port (1) to the second port (2), a second spur line (30) is arranged on the microstrip line of the transmission path from the first port (1) to the third port (3), and the first spur line (20) and the second spur line (30) are used for reducing the size of the power divider, reducing insertion loss and expanding the bandwidth of the power divider. The relative electrical length of the microstrip lines increase based on the spur lines, the actual length is shortened, the size of the power divider is reduced, and stepped impedance lines and branch lines are equivalently introduced to the transmission paths to expand the bandwidth of the power divider, and the power divider is smaller in size than a traditional Wilkinson power divider, and has larger bandwidth and smaller insertion loss.

The invention discloses a quantitative determination method and special device of corrosive sulfur in insulating oil. The quantitative determination method is that corrosive sulfur is quantitatively detected by an ultraviolet fluorescence method after silver-oil suspension liquid is oscillated with the insulating oil at constant temperature and fixed time. The special device comprises samplers, a silver-oil suspension liquid preparation and storage device and a constant-temperature oscillation reactor. The samplers realize integration of sample collectors and the reactor, without transferring samples of the insulating oil to isolate the sampling and detecting processes from external air so as to ensure the accuracy of detection results. Multi-channel sealing valves are arranged in the samplers, the samplers are provided with sole operation long handle which points to sealing ends and are simple, convenient and rapid to operate. The silver-oil suspension liquid can be conveniently prepared by the silver-oil suspension liquid preparation and storage device, and stored by isolating the air and quantitatively output.

Provided is a three dimensional (3D) vibration device with accurately controlled amplitude and frequency and a manufacture method thereof. The 3D vibration device comprises a frame, a vibrating table, motors, a container and an industrial personal computer, wherein the vibrating table, the motors, the container and the industrial personal computer are arranged on the frame. The 3D vibration device is characterized in that guide plates are overlapped on the vibrating table, the container is placed on the guide plates, a slider and guide rails in the X, Y and Z directions are all arranged between a container fixed plate and the guide plates, the three motors for configuring a variable-frequency governor are distributed at different positions of the frame, output shafts of the motors are connected with two horizontal sinking bars in the X direction and the Y direction on a middle layer and a lower layer and a lower mandril in the Z direction on an upper layer through eccentric wheel groups with different eccentricity, the two horizontal sinking bars configures restorers respectively, and the horizontal sinking bars and the lower mandril are all contacted with respective bearings. The program uses the VC.2003 to achieve vibration control of an upper computer interface, one motor switch is arranged in a programmable logic controller (PLC) for each module and can be displayed on the interface, programs in each module can be changed through the interface, and a control program provides an automatic executive functions for equipment. The 3D vibration device and the manufacture method are an effective method for improving apparent density during manufacturing, and are important in improving performance of granular material products.

The invention relates to a device and a method for reducing the wave-making resistance of a warship, which includes a hull, the lower part of the bow of the ship hull is provided with a forward projecting mechanism extending out of the ship hull, and an inner cavity is arranged inside the protruding mechanism, the inner cavity is communicated with an air source arranged in the hull through a gas pipe, A gas flow regulating device is arranged on the trachea, the protruding mechanism is provided with a nozzle communicated with the inner cavity, The invention is used for ejecting bubbles to change the height, phase and frequency of the first wave of the warship, and the aspect ratio of the warship to achieve the purpose of reducing the wave resistance, and the ejected bubbles can reduce the frictional resistance of the surface warship, increase the speed of the surface warship, save the energy consumption and carbon emission in the shipping process, and the gas source is provided with anozone generator. When needed, ozone is injected through the nozzle along with the bubbles to reduce the breeding of aquatic organisms, reduce the daily maintenance workload, reduce fuel consumption ofships, increase ship speed and reduce emissions.

Systems and methods offer a search system with third-party provided search applications that are triggered in response to specified queries and run at the search system. For example, a method may include determining that a query triggers a third party search application hosted at the search system, extracting a parameter from the query based on a query template, executing the third party search application with the parameter in a sandboxed manner at the search system to generate a third-party formatted answer for the query, and providing the third-party formatted answer as a search result for the query. The third party may provide the query template, parameter attributes, and the third party formatted answer. The third party search application may be stored at the search system and include the query template, a data store, the parameter attributes, and instructions for accessing the data store using the parameter.

The invention belongs to the technical field of eye care, and particularly relates to an eye health natural physiotherapy combination which comprises a nano atomization eye moistening instrument, eyemoistening cream, a meridian point intelligent pulse physiotherapy instrument, meridian massage cream, an eye health physiotherapy massage instrument and eye health care cream which are used in a matched mode. According to the invention, the nanometer atomization eye moistening instrument is matched with the eye moistening cream, and the nano atomization eye moistening instrument is used for rapidly carrying out atomization eye moistening effects on eyes, so that the situations of dry eyes, swelling pain and blurred vision decline can be relieved; a meridian acupoint intelligent pulse physiotherapy instrument is used for massaging human cervical vertebra acupoints, and meridian massage cream is matched, so that qi and blood cell microcirculation of the human meridian acupoints is smooth, blockage and swelling pain of the human body can be relieved, and eye fatigue is relieved; the eye health physiotherapy massager is used for massaging acupuncture points around eyes in cooperation withthe eye health care paste, blockage, dryness, fatigue and blurred vision of an eye meridian microneuron system can be effectively relieved, and the optimal comprehensive physiotherapy effect on the eyes is achieved.

The invention discloses an information processing method and device for a live broadcast room, a storage medium and an electronic device. The method comprises the steps: in response to gift giving operation of multiple audience clients on different anchors, updating vote information of the anchors and ranking information in an anchor ranking list, wherein the anchor ranking list is used for ranking a preset number of anchors, and the preset number is smaller than the total number of the anchors; determining the anchors with the changed vote information and/or the anchors with the changed ranking information in the anchor ranking list as target anchors; and sending a broadcast message to an audience client of a live broadcast room corresponding to the target anchor, the broadcast message being used for indicating the vote information and ranking information of the target anchor. According to the method, the effect of reducing the pressure of processing the information of the live broadcast room is achieved.

The invention relates to the technical field of aquaculture and discloses a feeding system for aquaculture. The feeding system comprises an aquaculture container and feeding equipment for feeding in the aquaculture container; and the feeding equipment comprises a feed box device, a control device for controlling the automatic feeding of the feed box device, a conveying pipeline and a power device.The control device is arranged to control the feed box device, so that the online dynamic proportioning of nutrients of a feed is realized, the feeding frequency and the feeding amount are controlled, the automation degree is high, the manpower and material resources are saved, and scientific feeding is realized; the power device ensures that the feed successfully enters the aquaculture container, and meanwhile, water entering the aquaculture container is purified, so that an aquaculture environment is kept clean; due to layered multipoint feeding of the conveying pipeline, the dispersity ofthe feed in water is improved, feeding is precise, and the feeding effect is improved; and the uniformity at the early stage of aquaculture of an aquatic product is improved, the utilization and conversion rates of the feed are increased, and the eutrophication degree of an aquaculture water body is reduced.

The invention discloses a SiC/Si heterojunction lateral photosensitive IMPATT diode and a preparation method thereof. The preparation method comprises the steps of: firstly, determining an SiC crystalform and material parameters, combining a working frequency of a target IMPATT diode, and calculating widths of an n-type region and a p-type region; secondly, selecting a p-type Si single crystal wafer of a certain thickness, preparing an n well, an n+ well and a p+ well in the selected Si single crystal wafer respectively according to the widths of the n-type region and the p-type region, and growing the crystal form SiC in the n well and the n+ well; thirdly, preparing an SiO2 protective layer through oxidization, coating a light shielding layer of an appropriate thickness thereon, and etching first and second gaps which form electrodes and a third gap which is used for introducing illumination to regulate and control performance of the IMPATT diode; and finally generating electrodes to obtain the target IMPATT diode. The SiC/Si heterojunction lateral photosensitive IMPATT diode and the preparation method thereof have the advantages of monolithic integration and series combination,and are prone to realize the entrance of illumination into an avalanche region of the IMPATT diode to affect its performance.

The invention discloses an efficient multi-freedom-degree ultrasonic vibration assisted double-sided laser machining device which is composed of a machine frame, an automatic feeding and discharging device, a double-sided laser machining device body, a three-freedom-degree moving device, an ultrasonic vibration assisting device, an assisted air blowing device, a controller and a monitoring device.The automatic feeding and discharging device can automatically move workpieces to all working positions. The double-sided laser machining device body can machine the two sides of each workpiece at the same time, the taper of the machined workpieces is reduced, and the single-side laser machining can be conducted. The three-freedom-degree moving device can rapidly move the workpieces. The ultrasonic vibration assisting device can realize the three-freedom-degree vibration of the workpieces and reduce recast layers, oxides, micro cracks and other defects in the laser machining process. The assisted air blowing device can reduce the splashing of melt during machining through coaxial and paraxial air blowing. The efficient multi-freedom-degree ultrasonic vibration assisted double-sided lasermachining device has the advantages of being reliable in work, high in automation degree, diversified in function, convenient to maintain, high in work efficiency, high in workpiece machining quality,high in applicability and the like.

The invention discloses a fixed-time and automatic feeding method for a fish pond. The method is characterized by comprising the following steps that S1, a user registers basic data in a client side,and the basic data is uploaded to a server through the client side; S2, the server calls fish adjustment feeding amount data and feeding time data corresponding to user registration data amount through a database according to the basic data uploaded by the user; S3, the server sends the feeding data and the feeding time data to on-site control equipment, and 10 minutes before a feeding time pointis reached, the on-site control equipment automatically uploads real-time water quality parameters to the server; S4, the server receives the water quality parameters to upload the actual feeding amount of a current meal, and the updated feeding amount is sent to the on-site control equipment; S5, the on-site control equipment conducts feeding according to the updated parameters if the feedback update of a service is received.

The invention discloses a screening and cleaning device for blueberry fruits. The device comprises a base plate, a left vertical plate and a right vertical plate are fixed to the two sides of the upper end of the base plate respectively, a left fixing batten is fixed to the upper end of the left vertical plate, a right fixing batten is fixed to the upper end of the right vertical plate, multiple rollers are obliquely arranged between the left fixing batten and the right fixing batten, one ends of the rollers are inserted into the right fixing batten and rotationally connected with the right fixing batten, the other ends of the rollers penetrate through the left fixing batten and are fixed to driven gears, the driven gears are mutually meshed, a motor is fixed to the side end of the left vertical plate, a driving gear is fixed to an output shaft of the motor, the driving gear is meshed with one of the driven gears, a net basket fixed between the left vertical plate and the right vertical plate is arranged below the rollers, a water collecting box fixed to the base plate is arranged below the net basket, a first transverse plate is fixed to the side end of the left vertical plate, asupport is fixed to the edge of the upper end of the first transverse plate, a temporary storage tank is fixed to the upper end of the support, and an electric push rod is fixed to the side end of thetemporary storage tank. The device is convenient to use and high in efficiency.

The invention discloses a power station boiler pulverized coal transport pipe capable of detecting and removing large-particle pulverized coal. The power station boiler pulverized coal transport pipecomprises a transport pipe, wherein a removing wheel is arranged in the transport pipe, an inclined filter plate is fixedly connected with inside of the removing wheel, a receiving rod is fixedly connected with the left side of the removing wheel, a windward fan is fixedly connected with the left side of the receiving rod, a drive gear is in engaged connection with the side surface of a stress lever, an inertial toothed bar is in engaged connection with the inner gear surface of the drive gear, a hollow shaft is in engaged connection with the side surface of the inertial toothed bar, a guide pipe is rotationally connected with the bottom of the hollow shaft, a rotating shaft is in engaged connection with the side surface of the inertial toothed bar and located on the left side of the hollow shaft, and a baffle plate is fixedly connected with the top of the rotating shaft. According to the power station boiler pulverized coal transport pipe capable of detecting and removing the large-particle pulverized coal, effects of performing detection in the transport pipe and removing the large-particle pulverized coal are realized by cooperative application of the removing wheel and the hollow shaft.

The invention relates to a method for improving the quality of self-adapting multimedia service in a wireless communication network. The method of the invention includes the steps of determining the state space of a cell in the wireless communication network and the corresponding motion space in the state space, searching motions which can be implemented in the motion space, calculating and obtaining the corresponding motion values according to the motions, selecting the maximum one from the obtained motion values and implementing the motion of the maximum motion value according to a certain probability, carrying out the search operation with a smaller probability, updating the system according to the motion value if better effect can be obtained when a certain motion is implemented in a certain state and repeating the steps when the next event occurs in the cell. By adopting the method for improving the quality of self-adapting multimedia service in the wireless communication network, the dynamic adaptation to various service types and service conditions can be realized while the network service quality is effectively improved and the computational complexity is remarkably reduced; furthermore, the method of the invention also has stable and reliable operating performance and wider application range.