33results about How to "Low technical difficulty" patented technology

An auxiliary equipment for installation of an air conditioner external unit according to the present invention comprises an installer shell, an adjustment space with openings on three sides is provided inside the installer shell, a support plate is provided on one side of the installer shell, and a support plate is installed at the bottom of the support plate Two clamping mechanisms, two clamping mechanisms are installed on the side of the support plate, the invention is an auxiliary tool in the installation process of the air conditioner external unit, which can straighten the copper pipe of the air conditioner, stick to the outer wall and correct it, It is convenient for the follow-up installation of the main body of the air conditioner, and the invention is a purely mechanical structure, which is carried out by manual control. The overall structure is very stable. The adjustment of the copper pipe of the air conditioner is controlled by the worker, and the effect is high. The invention only needs to be fixed on the window. It is very safe to adjust the copper pipe of the outdoor air conditioner indoors, and only need to turn the handle to intermittently straighten the copper pipe and tap the correction steps to ensure that the copper pipe of the air conditioner is adjusted accurately. The operation is also very simple, and the technical difficulty is relatively low.

The present invention disclosed a kind of inverse infiltration device. This device is by the first osmotic device, the first liquid turbine, the first pressure recovery device, the first regulatory valve, the pressure reducing valve, the evaporator, the thick solution loop pump, the bypass passage,Soluble pressure pump, second pressure recycler, bypass -driven solution booster pump, second regulatory valve, second liquid turbine, condenser, condenser water pressure pressure pump, second osmotic pump, thick solution pressure pump, thick solution pressure pump, thick solutionThe solution pressure pump, cooler, etc. are composed.The invention uses the inverse decompression infiltration process between the solution / solution system to reduce the inferiority difference between the general solution / water system, and increase the utilization rate of liquid pressure contained in the solution itself.

The invention discloses a flame surface / progress variable model-based supersonic turbulent combustion flow calculation method, and belongs to the field of computational fluid dynamics (CFD). The method comprises the steps of establishing a flame surface database; performing RANS solving by using the flame surface database; and building a compressible scale model of a progress variable source item. In view of a flame surface / progress variable turbulent combustion model with self-ignition and flameout phenomena, a novel compressible scale model with a definite physical meaning is built for the progress variable source item, so that a corrected flame surface / progress variable model can accurately describe self-ignition and flameout processes; and the high Mach number effect of flow is effectively considered, so that the simulation precision of supersonic turbulent combustion flow is greatly improved. The technology is low in realization difficulty, can be used as compressible correction, and only needs to be added as a sub-program; and an original program is slightly modified during CFD program coupling calculation.

The invention relates to a code generation method based on an ASN type object, which includes defining an ASN object to form a corresponding program source file; generating a code generation tool; writing a corresponding mapping rule file; using the code generation tool and inputting the mapping rule file to automatically Generate the called database output / input source code and the embedded database script code. This method completely overcomes the technical difficulty of storing ASN objects into database tables, and solves the problems of time-consuming and laborious development and low development efficiency of manually writing a large number of database outbound and inbound codes and database table definition script codes in the prior art.

The present invention provides a road congestion monitoring method based on mobile phone communication big data, comprising the following steps: S1: processing mobile phone real-time communication data, obtaining a snapshot of the user's position in 5 minutes; S2: constructing a road network model, and comparing cellular communication base stations with roads Mapping to obtain the base station waypoint matching table; S3: user path trajectory fitting and calculation of road speed; S4: visualization of road congestion, monitoring of road congestion. The invention realizes the fitting of the cellular base station and the road, based on the big data of mobile phone communication, and according to the real-time stream processing technology of kafka+hadoop+redis+spark streaming big data, realizes all-weather and all-road section monitoring of road congestion, and is supplemented by a visual interface Display and automatic early warning can also realize query and analysis of historical conditions. Compared with traditional manual inspection or fixed-point equipment monitoring methods, the cost and difficulty of technical implementation are greatly reduced.

The invention discloses an optical fiber methane gas concentration detection method and system based on ramp wave modulation, which includes: using a ramp wave modulation signal as the driving current of a light source, respectively obtaining the relationship between the wavelength and intensity of the optical signal emitted by the light source and the modulation signal; According to Beer-Lambert's law, the light intensity signal after methane gas absorption is obtained; the light intensity signal is differentially processed to obtain the processed signal; the time point t1 and the light source wavelength at which the light source wavelength begins to enter the methane gas absorption line are judged The time point t2 is completely equal to the center wavelength of the absorption line; the differentiated signal is integrated from time t1 to time t2; the concentration of methane gas is obtained. The invention has beneficial effects: only wavelength modulation and differential demodulation are involved in signal algorithm analysis, avoiding the use of complex algorithms such as Fourier transform and harmonic analysis, saving signal processing time, and improving detection response speed.

The invention provides a multi-aircraft configuration terminal capable of being quickly accessed to a Big Dipper constellation phased-array inter-satellite link, which aims to provide a configuration terminal of small implementation technical difficulty and capable of being quickly accessed to multiple aircrafts. According to the technical scheme of the invention, an intermediate-frequency signals is sent to a dispreading unit by a signal channel unit. After the dispreading processing step, two parallel signals are respectively sent to a signal detection unit and a demodulation processing unit. The signal detection unit obtains a synchronization pulse signal consistent with a forward transmit signal of a Big Dipper II type constellation phased-array inter-satellite link in timing sequence. The demodulation processing unit outputs demodulated data and then sends the demodulated data to an information processing unit so as to distinguish a plurality of aircraft targets from each other. According to the synchronization pulse signal and the identification location information of the aircrafts, a signal generating unit generates an intermediate-frequency signal consistent with a returning reception signal of the Big Dipper II type constellation phased-array inter-satellite link in timing sequence and then sends the intermediate-frequency signal to the signal channel unit. In this way, the intermediate-frequency signal is converted into a radio frequency signal. The communication link between Big Dipper II type constellations is established.

The invention discloses a vehicle transmission system anti-theft control method, device, equipment and storage medium. The method includes: obtaining an anti-theft algorithm after the vehicle is powered on, wherein the anti-theft algorithm carries verification information; performing Level I anti-theft verification according to the verification information carried by the anti-theft algorithm; When receiving an intelligent driving command, it will perform level II anti-theft verification, and will not respond to the driver's shift command in the car. Through the technical solution of the present invention, it is possible to realize the anti-theft of the two-stage transmission system under the two working conditions of manned driving and unmanned driving, and it has two layers of anti-theft alarm systems inside and outside the car, and it also has the function of connecting the car end. Through the direct intervention of the mobile phone terminal to operate the gear shift, the vehicle can be prevented from being stolen. It can meet the requirements of vehicle anti-theft laws and regulations while reducing the difficulty of technical implementation and increasing the safety factor of driving. The effect of vehicle anti-theft is remarkable, the process of vehicle anti-theft is simplified, and the cost is greatly reduced.