55results about How to "Achieve the desired purpose" patented technology

The invention relates to a residual heat pump air conditioning system for fuel cell vehicle, which belongs to the technical field of the air conditioner for fuel cell vehicle. The invention is characterized in that the residual heat pump air conditioning system comprises a refrigerating circuit and a heating circuit, the refrigerating circuit and the heating circuit are connected with a compressor via a four-way valve, an inlet of the four-way valve is connected with an outlet of the compressor, a first outlet and a second outlet of the four-way valve are connected with the refrigerating circuit and the heating circuit, and a third outlet of the four-way valve is connected with the inlet of the compressor via a gas-liquid separator; the heating circuit comprises an external evaporator, the heat side of the external evaporator is connected in a cooling circuit of the fuel cell and the cool side is connected in the heating circuit; the cooling circuit of the fuel cell also comprises an electric control three-way valve, one end of which is connected with the fuel cell via a water pump and a second end and a third end respectively are connected with the inlet and the outlet at the heat side of the external evaporator. The air conditioning system can use the residual heat of the fuel cell for heat supply and has the advantages of energy saving, simple structure and wide adaptability to use area, etc.

A calibration method based on CCP protocol for the controller of electric car with mixed power features that between the low-class controller and upper-class host, which are connected via CAN bus, the upper-class host can initialize the low-class controller and calibrate and monitor its parameters according to CCP protocol.

A network security protection method withstanding denial of service attack event designs defence module in data link layer. Said method judges TCP request packet received from different kinds of IP address to realize to denial of service offensive filtering. Said method includes following steps : fire wall capturing outer network client-side sent TCP data package to inner network server, to realize first layer protective treatment, the TCP data package passing first layer protection entering second layer protective treatment, checking whether said received TCP categorical data having matched item in legal IP address chaining recording list, if having matched item, then regarding as normal data package capable of directly handing inner core processing, otherwise to proceed package flow rate statistics in period of time. Said invention can active defense denial of service attack from any kind of attack tool and realize inner core active defense protection effect.

An afterheat heating system of a fuel cell vehicle belongs to the technical field of vehicle heating and is characterized by comprising a heating pipeline; a cooling loop transmits heat to the heating pipeline by an intermediate heat exchanger; a section of bypass pipeline is arranged between the inlet and the outlet of the radiator of a fuel cell; an electric-control triple valve is arranged at the inlet of the bypass pipeline and the radiator of the fuel cell; a check valve is arranged on the heating pipeline; the heating side of the intermediate heat exchanger is connected on a cooling pipeline; the cold side of the intermediate heat exchanger is connected on the heating pipeline; a water pump and a radiating device are arranged on the heating loop. The system can effectively utilize the afterheat of the fuel cell to heat the vehicle and has the advantages of energy saving and simple structure, etc.

A uniaxial tension and soil beam bending tester comprises a motor; one side of the motor is provided with an electric shifting platform; the motor is connected with a rigid transmission bar; the rigidtransmission bar is connected with a slide rail guide block; the slide rail guide block is connected with the rigid transmission bar; the rigid transmission bar is provided with a force sensor; the rigid transmission bar is connected with a loading unit arranged on a loading platform; a shift sensor is fixed on a primary platform; the shift sensor, the force sensor and a data collection card areconnected; soil body is fixed on the loading unit; velocity is set; the motor is used for driving the electric shifting platform; the slide rail guide block drives the soil body on the loading platform to perform the test; the data collection card collects and stores measurement values via the shift sensor and the force sensor; and the invention has the characteristics of low cost, stable loading,slow loading speed, settable and controllable velocity.

The invention is a kind of car scanning laser radar detecting system and the method for detecting forward dangerous which belongs to car traveling information sensing and processing technology field. The character lies in: the scanning component contains two scanning lens and step-by-step motor which drives the lens to rotate, the instruction output end of the controller control the step-by-step motor to rotate and stop through driving circuit; the step-by-step drives the scanning lens to rotate through a convex wheel mechanism and a V type pendulum rod. Thus the laser is used to scan in a fixed angle range. The invention uses the time difference sent by the laser and reflected by the target to calculate the target object distance, uses the angle from scanning to the status reflected by the target object to calculate the object position angle, and finally outputs the distance and position angle information of danger. The system can realize the scan in wide range, the cost is low. The method can identify the dangerous object effectively.

A character recognizing technology based on Gabor filter group includes using Gabor filter group to extract the strokes of a character image in different directions, finding out optimal filter parameters, non-linear post-processing to the output of Gabor filter group for increasing the resistance of recognizing system to brightness, contrast change and interference of image, calculating the recognizing characteristics of the positive and negative values in said output, combining them, together to obtain a multi-dimension characteristic vector, and reducing its number of dimensions by linear analysis method to improve its recognizing performance. Its advantage is high recognition percentage.

The invention belongs to the applying field of intellective material, especially relates to shape memory alloy. It consists of temperature sensor that is used to check the alloy spring temperature, move sensor that is used to check the alloy spring move, data processing module that is used to process the temperature data and move data and then output message to driving circuit and on-off circuit, the driving circuit is used to supply the electric pressure on the memory alloy spring and adjust the voltage through changing pulse duration, and on-off circuit that is used to link or cut off the voltage on the alloy shape memory spring and fan. The invention can make the mechanic arm on or off effectively that is used to drive the alloy memory spring.

A plasma discharge catalytic air cleaning device has a plasma discharge catalytic region, where the ions and ultraviolet ray generated by plasma discharge can stimulate the semiconductor catalyst chosen from TiO2, ZnO, ZnS, Fe2O3, CdS, CdSe, WO3 and their mixture for generating the hydroxy free radicals to degradate harmful gas, sterilize and disinfect.

The invention is a low-temperature extremely low-noise coefficient amplifying circuit and its character: it adopts microband mixing circuit, adopts high-Q value spiral inductance coil and high-Q value capacitor in the input matching network in order to reduce input circuit loss and then noise; the spiral inductance coil's two ends adopts double parallel microbnd line structure, reducing parasitic parameters; the microband length of the negative feedback network is less than 1 / 10 working wavelength, reducing parasitic vibration; it adopts small resistances in input and output matching networks, enhancing value of real part of impedance; in the output matching network, the resistances in series with main lines and branch lines are proper to make the gain larger; the input and output matching networks is connected to 1 / 4 working wavelength branch lines, reducing circuit size to make the circuit able to work at low temperature for a long period. It can meet the requirements of low noise, larger gain, low standing wave ratio, working at low temperature for a long time, etc.

The invention relates to a multifunctional supporting device special for curing throat diseases of the human body. Currently, no multifunctional supporting device special for curing the throat diseases of the human body which has complete functions and is convenient to use is provided. The multifunctional supporting device special for curing the throat diseases of the human body is characterized by comprising a surgery frame assembly, a lower lip opening assembly, an upper lip opening assembly, side lip opening assemblies, a throat regulating device, an oral cavity regulating device and a support frame, wherein the surgery frame assembly comprises an expansion link, a No.2 regulating lever, a No.1 regulating lever and a base frame; the lower lip opening assembly is arranged on the No.1 regulating lever; the upper lip opening assembly is fixed at the front end of the base frame of the surgery frame assembly; the side lip opening assemblies are arranged on both sides of the base frame of the surgery frame assembly; the throat regulating device is arranged in the No.2 regulating lever; the oral cavity regulating device is arranged on the surgery frame assembly; and the support frame is fixed on the oral cavity regulating device. The multifunctional supporting device special for curing the throat diseases of the human body has the advantages of reasonable structure design, complete functions and convenient use and is convenient to carry out diagnosis and treatment of the minimally invasive surgery on the throat diseases of the human body.

The present invention provides a ship radiation imaging and detecting system, which belongs to the field of nucleus technology application. The present invention is characterized in that: a Gamma ray source and a Gamma ray array detector are arranged on a railway which is fixed on a ship handing equipment and can simultaneously skid along the railway. The railway is parallel with ground and extends along the direction of the length of the ship. The radiation field of the Gamma ray source can cover the cross section of a ship body in the width direction. The Gamma ray array detector can receive the Gamma ray passing through the ship body. A detector pre-circuit gathers detecting input signals and processes with a processing device. The present invention can obtain a ship radiation perspective image and a good penetrating effect. The present invention has the advantages of economy, practicality and flexibility and so on; in addition, the present invention has good market value and can acquire very good social profit.

The invention relates to a method for preparing high-tap-density silver flake. The method comprises the following steps of S1, preparation of a solution, S2, reduction reaction, S3, cleaning and filtering, S4, ball milling of silver powder, S5, drying of the silver powder, and S6, screening and testing of the silver powder. The method is simple in process and good in reproducibility in the preparation process, and industrialized production can be achieved.

The invention provides air sand and a preparation method thereof. Air clay is prepared from the components of: silicon dioxide, calcined shell powder, polyethylene glycol, polyvinyl alcohol, foam powder k12, glycerol and propylene glycol. The preparation method comprises the following steps of: (1) adding the silicon dioxide which is used as a main body, the calcined shell powder which is used as a molecular structure connecting carrier, and the polyethylene glycol, the polyvinyl alcohol and the foam powder k12 which are used as reaction elements into a heatable reaction kettle; (2) stirring when the reaction kettle rotates at a constant speed of 25rpm; (3) raising the temperature to ensure that the reaction elements fully react with the silicon dioxide and the calcined shell powder to achieve an effect of shaping micro-particles; (4) after the temperature is up to 120 DEG C, stopping heating and continuously mixing; (5) adding a propylene glycol solution with the concentration being about 70 percent, stirring, mixing, and adjusting the rotating speed of the reaction kettle to be 20 rpm; (6) lowering the temperature, adding the glycerol, and adjusting the rotating speed of the reaction kettle to be 40rpm; (7) rotating for 10 minutes to obtain the air sand. The method has the characteristics of reasonable technological process and high product yield.

The invention discloses a tactical air navigation system external field beacon simulator, which consists of a frequency synthesizer module, a microwave modulation module and a display control and video processing module, wherein the frequency synthesizer module and the microwave modulation module finish generating and receiving five paths of radio frequency signals on the basis of microwave signalprocessing and a microstrip technology; the display control and video processing module takes a large-scale integrated circuit FPGA (Field Programmable Gate Array) and a high-speed MCU (Single Chip Microcomputer) as the center; and a bell shaped pulse and a PIN (Personal Identification Number) modulation technology are adopted to effectively improve frequency spectrum performance, and the full-frequency-band and full-channel coverage function of the tactical air navigation system external field beacon simulator is realized. A multi-channel parallel technology and the microwave modulation module with a microwave signal processing function are adopted to generate the simulation signals of a plurality of beacon stations, and a one-machine multiple-station function can be realized.

The present invention belongs to the computer-aided design of module level layout and features that based on the original problem, and through altering the module size and corresponding lead line position, or module deformation, one serial simple layout problems successively approximating original problem are created and solved. During the successive approximation, one approximating factor Alphais used to control the module deforming degree, and the serial problems are solved successively in the order of increasing approximating degree or decreasing Alpha from the simplest approximated problem until Alpha of 1, that is, the module size is equal to that of original module or the approximated problem is the original problem itself. Meanwhile, the solution structure of the present problemis used as the initial solution structure of the next approximated problem. The algorithm is stable, efficient and has best result obtained and industrial application value.

A developing roll, which can reduce residual charge even under environment of low temperature and low humidity, comprises a shaft 1, an innermost layer 2, an intermediate layer 3 and an outermost layer 4 provided in this order on an outer peripheral surface of the shaft, the intermediate layer including an ionic conductive agent and carbon black and having a volume resistivity (rhov) of not more than 1.0x10<6>Omega.cm and the outermost layer having a volume resistivity (rhov) of 1.0x10<7 >to 1.0x10<13 >Omega.cm.

The invention relates to a vaneless diffuser with controlled profile in centrifugal compressor, belonging to turbo-machine technology area, comprising rotating shaft of compressor, impeller disc, vane, diffuser shroud of external wall, diffuser disc and impeller baffle, characterized in that a flexible annular disc is set in the inner wall of diffuser shroud of external wall, the internal circle of said flexible annular disc is fixed with the inner side of said diffuser shroud of external wall, at least two groups of arc ring plates distributed on the radius direction are fixed in the circle face of said flexible annular disc, each group of arc ring plates comprises at least three arc ring plates distributed on the circle direction and each arc ring plated is connected with a controlled thrust mechanism. The invention can avoid flow separation inside the diffuser, improve the diffuser efficiency, expand the condition range of compressor and improve stall margin under different flux conditions, shrinkage or expansion flow channel and approached optimal profile.

A cassette transport apparatus closes an opening for the access of a substrate of the cassette when the cassette for accommodating the substrates is conveyed from a frame to a substrate transport operation part. Therefore, in the conveying process, the ambient air in the cassette can be kept well. On a lifting transporter (15), a cassette transport supporting bracket (20) which horizontally advances and retreats freely is provided between a retreating position on the lifting transporter (15) and an advancing position for advancing to a transverse side. The utility model is characterized in that: on the lifting transporter (15), a supporting part (turntable (16)) which horizontally supports a cassette transport supporting bracket (20) is provided with a cover (22). The cover (22) closes a substrate access opening (6a) of the cassette (6) which is supported on the cassette transport supporting bracket (20) and is transported to a certain position of the lifting transporter (15).

A biomedical material for configuring artificial blood vessel is prepared from the chitosan as substrate whose viscosity-average molecualar weight is about 300000 through purifying, 6-O-sulfonating, and N-sulfonate-6-O sulfonation to obtain a chemically modified N-sulfonate-6-O chitosan sulfate. Its advantages are high and regulatable anticoagulating activity, high biocompatibility and biodegrability, and low cost.

The invention provides a solar billboard. The solar billboard comprises a billboard and a pedestal supporting the billboard, wherein the top of the billboard is provided with a solar panel; the solar panel is connected with a motor arranged in the billboard; and the motor drives the billboard to rotate through a transmission device. The solar billboard uses solar energy as the energy source to drive the billboard to rotate. When sunlight irradiates the solar panel positioned on the top of the billboard, the panel converts the solar energy into electric energy to drive the motor to rotate, and the motor drives the billboard to rotate through the transmission device. The solar billboard has the advantages of simple structure, energy conservation and environment friendliness, excellent advertising effect and easy popularization.

A network security protection method withstanding denial of service attack event designs defence module in data link layer. Said method judges TCP request packet received from different kinds of IP address to realize to denial of service offensive filtering. Said method includes following steps : fire wall capturing outer network client-side sent TCP data package to inner network server, to realize first layer protective treatment, the TCP data package passing first layer protection entering second layer protective treatment, checking whether said received TCP categorical data having matched item in legal IP address chaining recording list, if having matched item, then regarding as normal data package capable of directly handing inner core processing, otherwise to proceed package flow rate statistics in period of time. Said invention can active defense denial of service attack from any kind of attack tool and realize inner core active defense protection effect.

The present invention discloses an argon output control method for a high-frequency argon knife. The high-frequency argon knife comprises a pressure reducing and pressure stabilizing valve, a flow proportional valve, a switching electromagnetic valve and a single-chip microcomputer, the flow proportional valve and the switching electromagnetic valve are both controlled by the single-chip microcomputer, argon in an argon source is sequentially output through the pressure reducing and pressure stabilizing valve, the flow proportional valve and the switching electromagnetic valve; when the high-frequency argon knife is not started, the switching electromagnetic valve is in a closed state, an output of the argon is cut off, a flow rate output by the flow proportional valve is set, according tothe set flow rate, the single-chip microcomputer controls a stepper motor of the flow proportional valve to rotate to a suitable opening size, when the switching electromagnetic valve is closed, pressure intensity of an output end of the flow proportional valve is always the same as pressure intensity of an output end of the pressure reducing and pressure stabilizing valve; and after the high-frequency argon knife is started, the switching electromagnetic valve is opened, a large flow impact is formed at a moment of the opening, the impact enables an argon barrier layer to be rapidly formed around electrotome electrodes and tissues, and then an output of the steady flow is maintained.

The invention relates to a hydrogen selenide preparing method. The method includes S1) adding a sulfur-containing selenium raw material into a reaction furnace; S2) feeding heated hydrogen into the reaction furnace; S3) generating hydrogen selenide by reacting selenium and the hydrogen under heated conditions in the reaction furnace, and mixing the hydrogen selenide into a mixed gas; S4) cooling the mixed gas discharged from the reaction furnace and performing separation to obtain selenium vapor; S5) condensing and liquefying the cooled mixed gas in a condenser; S6) when 5-15% of the selenium raw material is consumed, filling a container with the liquified hydrogen selenide for collection; S7) allowing the reaction to be continued, and filling a container with the liquified hydrogen selenide for collection when 40-60% of the selenium raw material is consumed; S8) allowing the reaction to be continued, and filling a container with the liquified hydrogen selenide for collection when 85-95% of the selenium raw material is consumed; and S9) repeating the S2) step to the S8) step. According to the method, hydrogen selenide products having different hydrogen sulfide contents are obtained through staged collection manners, thus meeting different demands of different customers.

The invention relates to a wireless intelligent environment monitoring robot. An STM32F103VET6 chip is adopted as a control core of an overall robot system, a peripheral circuit is arranged for assistance, external information is collected through a temperature and humidity sensor, a dust sensor, a carbon monoxide sensor, an OV2640 camera, and effective monitoring on the environment and alarming of risk gas are achieved.

The invention discloses a vehicle-mounted voice control method and device. The vehicle-mounted voice control method comprises the following steps: step 1, obtaining a structured semantic group; step 2, judging whether a command needing to be executed can be executed according to the structured semantic group, and if not, step 3, generating guide information according to the structured semantic group and sending the guide information to the man-machine interaction device; step 4, acquiring command information fed back by the user according to the guide information; and 5, transmitting the command information to the corresponding execution mechanism, so that the corresponding execution mechanism works according to the command information. According to the vehicle-mounted voice control method provided by the invention, when a related command cannot be executed through the structured semantic group, the guide information related to the structured semantic group can be generated according to the structured semantic group, and the user is enabled to interact with the vehicle in a standard manner in a manner of guiding the user through the guide information; therefore, the purpose that the user needs to execute is finally achieved.