281results about How to "Overcome environmental problems" patented technology

A double-longitudinal-mode laser heat frequency stabilization method and a device based on the iodine frequency stabilization reference light belong to the application technical field, the invention takes the center frequency of the iodine frequency stabilization laser with a relative frequency accuracy being 10<-11> as a reference frequency, and leads the frequency of laser output by multi-double-longitudinal-mode lasers to keep one fixed difference with the reference frequency through regulating cavity length, so that the relative frequency accuracy of the double-longitudinal-mode laser is improved from 10<-7>-10<-8> to 10<-9>, the frequency consistency of multi-double-longitudinal-mode lasers is improved from 10<-7> to 10<-9>, therefore, the problems that the relative frequency accuracy of the double-longitudinal-mode laser can not exceed 10<-8> and the frequency consistency of multi-double-longitudinal-mode lasers is poor are solved.

A transparent glass ceramics of RE-doped oxyfluoride is proportionally prepared from SiO2, Al2O3, EnF2, MF2 and ReF3, where M is 2-valence alkali-earth metal ion chosen from Mg, Ca, Sr, and Ba and Re is 3-valence RE ion chosen from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, through high fusing and heat treating. It can be extensive used in laser, luminous and optical communication field.

The invention discloses a target detection method for vehicles and pedestrians in intelligent traffic monitoring. The method comprises the following steps of: performing background model initialization on a video frame sequence, independently establishing hybrid Gaussian background component models for a saturation component and a brightness component, and calculating component mean values; differentiating a current frame in the video frame sequence from a background frame, performing binarization processing on a foreground frame, removing shadows and noises and performing morphological filtering; updating weight values, mean values and variances of the components of an obtained hybrid Gaussian background model by using an updating factor; and comparing values of moving target pixels to be matched with each distributed Jeffrey value in the updated hybrid Gaussian background model, and judging whether the moving target pixels are foreground points or not by utilizing the Jeffrey values. By utilizing the method, related parameters of the saturation component and the brightness component are required to be updated, so the overhead of a system is decreased under the condition of not influencing the precision, and the influence of noises and environmental illumination can be avoided; and the method can adapt to the slight disturbance of scenes, and has the characteristic of high robustness.

The invention relates to an animal behavior detection and automatic analysis system, which comprises a signal source acquiring device and a processing and analyzing device, wherein the signal source acquiring device is used for capturing animal behavior, generating corresponding acceleration sampling signals and sending the acceleration sampling signals to the processing and analyzing device; and the processing and analyzing device processes and analyzes the acceleration sampling signals to acquire animal behavior information. The system not only can meet the requirements of information acquisition automation and high efficiency in the field of animal behaviors, but also can overcome negative influences that animal movement information acquisition by a camera in the prior art is limited by video resolution, blind areas generated by observation angles, lighting environment and the like. The system also has low cost.

The invention provides a preparation method of a high temperature resistant silicon dioxide nanometer fiber filtering membrane. The preparation method is characterized by comprising the specific steps of: adding organosilicone, water, ethanol and inorganic acid at room temperature into a stirring kettle so as to obtain a mixed solution, and adding inorganic salt; stirring the mixed solution so as to obtain a precursor colloidal sol; inputting the precursor colloidal sol in a spinning head of electrostatic spinning equipment, simultaneously wherein the spinning head is connected with a high-voltage power supply so as to carry out electrostatic spinning to obtain the nanometer fibrous membrane; placing the nanometer fibrous membrane into a vacuum drying chamber to dry, then placing into a box resistance furnace to carry out warming for calcination, namely obtaining the high temperature resistant silicon dioxide nanometer fiber filtering membrane. The preparation method provided by the invention has the advantages that the preparation process is simple, the cost is cheap, the fiber diameter of the acquired high temperature resistant silicon dioxide nanometer fiber filtering membrane is small, the fire resisting quality is good, and the high temperature resistant silicon dioxide nanometer fiber filtering membrane has good structural stability; and the filter efficiency of high temperature smoke dust particles the sizes of which are more than 0.24 mum achieves 99.9% at 1500 DEG C, and the high temperature resistant silicon dioxide nanometer fiber filtering membrane has extensive application prospects in the fields such as high-temperature insulation, individual protection, and aerospace.

The invention discloses a framework prestress anchor rod-reinforced supporting structure for a gravity type retaining wall and a construction method thereof. In the structure, a prestress anchor rod (3) penetrates through a crossed part of a cross beam (1) and an upright post (2) as well as a gravity type retaining wall (4) and is fixedly embedded inside a reinforced soil body; cement mortar is wrapped on the periphery of an anchor section (7) of the prestress anchor rod (3); a free section (13) of the prestress anchor rod (3) is coated with a layer of corrosion resistant material (14); a plastic casing (15) is sleeved outside the corrosion resistant material (14); and the end part of the prestress anchor rod (3) is anchored at the crossed part of the cross beam (1) and the upright post (2) by using an anchor head (5). The construction method comprises the following specific steps of: carrying out manufacturing and constructing on the prestress anchor rod (3); casting a capping crown beam (8), the upright post (2) and the cross beam (1); locking the anchor head (5) which is connected with the prestress anchor rod (3) in a fastening manner by using an anchor appliance (16); carrying out construction on the prestress anchor rod (3), the cross beam (1) and the the upright post (2) on next work surface according to the previous steps; finishing tensioning and anchoring of the prestress anchor rod (3) on each layer; and casting a foundation pile (9).

The invention discloses a dynamic data scheduling method in a multi-path transmission control protocol (MPTCP), comprising the following steps: the round-trip time RTT and the round-trip time variation RTTVAR of each path are measured; whether each path is available is judged according to the RTT and RTTVAR, the congested paths are abandoned, and the available paths are retained; the data transmission capacity of each path is estimated; and a data transmission quota is allocated for each path based on the estimated data transmission capacity and the current sending window, and a scheduler allocates transmission data according to the transmission quota. According to the scheme, the essence of a TCP Vegas algorithm is absorbed on the basis of Lowest_RTT, and improvement is made on the basis, which is equivalent to adding a congestion avoidance control function to the scheduler. The method has far-reaching significance to avoiding path congestion and enhancing the overall transmission capacity of the paths.

The invention, which belongs to the equipment management field, relates to a panoramic-technique-based equipment visual management method. A panoramic data acquisition module, a panoramic data processing module, a database storage management module, and a log management module are used for realizing visual management on equipment. Meanwhile, functions of panoramic application scene data interaction, hot spot adding and editing, map setting, and labeling and the like are realized by using mobile terminals like a mobile phone. According to the invention, the panoramic technique is applied to equipment management of the petrochemical enterprise to realize equipment management visualization and enhance equipment management interaction, thereby improving the management efficiency and the management level.

The invention relates to the technical field of information, in particular to an illumination lamp based on a microwave radar gesture recognition technology and a control method of the illumination lamp. The illumination lamp comprises a signal transceiving module, a gesture recognition module and a control module, and the signal transceiving module is used for periodically transmitting a microwave radar signal to a preset range and receiving a radar echo signal reflected by the hand; the gesture recognition module is connected with the signal transceiving module and is used for recognizing agesture motion and the gesture motion change of the hand according to the radar echo signal and generating a recognition signal corresponding to the gesture motion and the gesture motion change; the control module is connected with the gesture recognition module and is used for forming a control signal which corresponds to the recognition signal and is used for controlling illumination current according to the recognition signal generated by the gesture recognition module to adjust on and off and the brightness state of the illumination lamp. The illumination lamp is high in sensitivity, convenient to control and low in cost.

The present invention belongs to the information technological field and relates to a microwave radar technology-based gesture recognition device and gesture recognition method. The gesture recognition device comprises a signal transmitting-receiving module, a data processing module and a gesture recognition module; the signal transmitting-receiving module is used for periodically transmitting microwave radar signals to a preset range, and receiving radar echo signals reflected by hands; the data processing module is connected with the signal transmitting-receiving module and is used for acquiring the feature information of gestures according to the radar echo signals; and the gesture recognition module is connected with the data processing module and is used for identifying the gestures according to the feature information acquired by the data processing module. With the above gesture recognition device and gesture recognition method adopted, the defects of existing gesture recognition can be eliminated, and a more natural and intelligent interaction mode can be realized.

The invention discloses a borehole profile rock and soil mass layered deformation optical fiber measuring method. A measurement point is selected, and a soil layer is cataloged after being bored. When a hole is formed, a sensing optical fiber is laid and then the hole is backfilled. When the rock and soil mass around the sensing optical fiber deforms, the sensing optical fiber is driven to be deformed due to wrapping force of surrounding soil mass. Strain distribution of the sensing optical fiber is measured via BOTDR/A and other technologies so that strain distribution state of corresponding positions of a borehole profile is obtained. Integration of the corresponding positions is performed on the obtained strain along the optical fiber so that deformation state of each soil layer in deep rock and soil mass can be obtained. Therefore, distributed type measurement of borehole profile rock and soil mass layered deformation is realized. The method is applicable to the field of rock and soil mass deformation monitoring, such as ground subsidence, ground collapse, mines, etc.

The invention provides a burn-free coal-ash-based geological polymer high performance adsorbing material preparation method which comprises the following steps: a, preprocessing a solid raw material; b, preparing a base material, wherein solid waste coal ash containing rich aluminosilicate is utilized as the solid raw material, an alkali activator is utilized as a liquid raw material, and the solid raw material and the liquid raw material are evenly mixed to react at a temperature of 20 to 100 DEG C to form a base; c, forming a base material, i.e., forming the evenly-mixed solid and liquid raw materials into a base sample through granulation molding or casting molding or extrusion molding; d, maintaining the base sample; e, washing and drying. The method can save energy, is simple in preparation technology, can reduce production cost, can be used to produce a high performance geological polymer adsorbing material in a large scale, and the waste coal ash of coal-fired power plants is utilized as a raw material to prepare the adsorbing material at a room temperature; thus, the problem of coal ash stack and waste and the environmental problems caused by the coal ash stack and waste are solved, and industrial organic waste gas and waste water containing phenol can be treated in a mode of using waste to treat waste.

The invention discloses a microelement interwell tracer agent and the application of the microelement interwell tracer agent, and relates to oilfield flooding micro tracer agents and a using method of the tracer agents in oil reservoir dynamic monitoring. Microelements which are not included in a stratum or fluid of the stratum or minimal microelements which are included in the stratum or the fluid of the stratum serve as the tracer agent, a macromolecule hydrophilic complex and rare earth elements are adopted to carry out complexation to prepare the tracer agent, the tracer agent is injected from an injection well, then sampling is carried out on surrounding production wells according to a certain sampling rule, the production condition is monitored, samples are analyzed, and a tracer production curve is obtained. The microelement interwell tracer agent is high in stability, and the thickness and permeability of a water flooded layer, the diameter of a duct, and the positions of external channeling and fractures of an injection well pipe can be determined accurately and conveniently.

The invention discloses a method for intelligently identifying mineral information based on spectral information. The method comprises the following steps of: (1) extracting the spectral information comprising spectral waveform and spectral characteristic parameters; (2) reading in hyperspectral image data; (3) resampling each reference spectrum according to the wavelength of the image spectrum; (4) removing continuum of the image spectrum and the resampled reference spectrum; (5) performing least square fitting on the image spectrum and each reference spectrum processed by the step (4) at a primary absorption characteristic band and a secondary absorption characteristic band to obtain an initial matching value; (6) performing three kinds of constraint processing, namely matching of spectral angle at a characteristic band, judging of existence of specific absorption characteristic and setting of a reflectivity threshold value of the characteristic band, on the initial matching value to obtain the final matching value; and (7) obtaining the final identification result of the hyperspectral image by using the constraint of spatial distribution continuity of a mineral, wherein the reference spectrum corresponding to the maximum matching value in the final matching values obtained by the step (6) is a preliminary identification result of a pixel.

The invention provides an automatic regulating device for liquid crystal display luminance, which comprises a liquid crystal display, a camera and a computer, wherein the liquid crystal display comprises a signal processing circuit, a backlight control circuit and a backlight unit; the camera acquires an environmental image and transmits image information to the computer; the computer analyzes luminance information of the image and sends a corresponding control signal; the signal processing circuit receives the control signal and sends a corresponding adjustment signal; and the backlight control circuit receives the adjustment signal and correspondingly adjusts luminance of the backlight unit according to the adjustment signal. The automatic regulating device for the liquid crystal display luminance has low cost, adjusts the liquid crystal display luminance accurately, and has little external interference.

The invention relates to a preparation method of a superhydrophobic nanomaterial. The preparation method comprises steps as follows: firstly, nano silica is ultrasonically dispersed in a part of an absolute ethyl alcohol solution, then, a silane coupling agent is added to a mixed solution to be rapidly stirred for 2 h (at the water bath temperature of 60 DEG C), the mixture is aged at the room temperature for 24 h, and a solution A is obtained; secondly, the silane coupling agent is added to the remaining absolute ethyl alcohol solution to be rapidly stirred for 2 h, fumed silica is added, andthe mixture is continuously stirred for 30 min, finally, perfluorinated silane is slowly dropwise added, the mixture is stirred intensely for 5 h, and a solution B is obtained; finally, the solutionA and the solution B are mixed and stirred for 2 h, a film-forming agent is added, the mixture is continuously stirred for 2 h, and the superhydrophobic nanomaterial is obtained. The preparation method has the advantages as follows: the superhydrophobic nanomaterial has stable and durable superhydrophobic performance, is non-corrosive, free from environmental pollution, low in cost and wide in application range and adopts a simple process.

The invention discloses a terahertz time domain spectrum technology-based plastic film thickness detection device. The terahertz time domain spectrum technology-based plastic film thickness detection device includes a femtosecond laser, a first reflector, a beam splitter, an optical delay line, a second reflector, a terahertz emitter, a first parabolic mirror, an IR filter, a sample table, a terahertz detector, a third reflector, a fourth reflector, a terahertz time domain system controller and a computer. The detection method includes the following steps that: signals generated when terahertz waves pass through the air and a detected plastic film are acquired respectively, and the initial thickness of the plastic film is set and is substituted into a terahertz transmission function model of interaction of the terahertz waves and a film sample, so that the refractive index of the film sample can be calculated, and refractive index signals are transformed into a quasi space through utilizing Fourier transform, and the peak value of the amplitude of the signals in the quasi space is obtained; and a thickness value is modified constantly until the peak value of the amplitude of the signals in the quasi space is minimum, so that the thickness of the plastic film can be obtained. With the terahertz time domain spectrum technology-based plastic film thickness detection device and method of the invention adopted, the problem of poor accuracy of thickness detection of the plastic film at the present can be solved, and the thickness of the plastic film can be fast and accurately detected in real time.

The invention discloses a reflective optical fiber sensor device, which comprises a light source, an optical detector and a sensor probe, wherein the sensor probe is used for receiving and processing the incident light emitted by the light source and sending the obtained reflected light to the optical detector. The reflective optical fiber sensor device can overcome the defects that the sensor in the prior art has large volume, cannot be used in an environment with electromagnetic interference and has short service life and poor corrosion resistance, and has the advantages of small volume, wide application range, long service life and good corrosion resistance.

The invention discloses a method and a device for determining the water content of a fresh concrete mixture based on dielectric constant. According to the method, a relative dielectric constant of concrete is tested based on the propagation rate attenuation of an electromagnetic wave in the fresh concrete mixture and the reflection principle of the electromagnetic wave on a metal plate of a testing device, and then, in accordance with the principle that the relative dielectric constant is relatively sensitive to water, the propagation velocity of the electromagnetic wave in the fresh concretemixture is enabled to vary so as to lead to the variation of the relative dielectric constant, thus the water content of the fresh concrete mixture can be measured. The method has the characteristicsof no contact between an electromagnetic transmitting and receiving device and a tested object, large testing area and wide water ratio testing range. The method can be used for overcoming the defectthat the traditional method is insufficient in concrete adaptability, largely impacted by environment, inaccurate and unreliable, has greatly increased precision and speed in testing the relative dielectric constant of concrete, and has the characteristics of great simplicity in manufacturing testing device, good simplicity and convenience, accurate test results and outstanding operation easiness.

The present invention discloses a vehicle-mounted lane line detection system and method. The system includes a processing unit arranged on a traveling vehicle and an image acquisition unit connected with the processing unit; the image acquisition unit is used for acquiring lane pictures in the traveling process of the vehicle in real time and sending the lane pictures to the processing unit; and the processing unit is used for obtaining lane line sample pictures in an offline or online manner to establish a lane line sample library, extracting the RGB pixel values of lane lines in the lane line sample library to establish a G-S color model, inputting the lane pictures in the traveling process on the basis of the G-S color model, detecting the lane lines in the lane pictures through likelihood probability calculation and threshold segmentation, and extracting the lane lines from the lane pictures through Hough transform. With the vehicle-mounted lane line detection system and method of the present invention adopted, influence caused by environmental change or illumination change can be eliminated, and a lane line detection effect can be effectively improved.

The invention discloses an anti-condensation control method and an anti-condensation control device for a combined air conditioner, and the combined air conditioner. The method comprises the following steps: acquiring the wet-bulb temperature of an environment where the combined air conditioner is located under a refrigeration mode of the combined air conditioner; determining whether the wet-bulb temperature is lower than or equal to a preset dew-point temperature; and adjusting the opening degrees of an air valve and/or a water valve of the combined air conditioner when the wet-bulb temperature is lower than or equal to the dew-point temperature, so as to enable the current wet-bulb temperature of the environment after the adjustment to be higher than the dew-point temperature, and realize anti-condensation control for the combined air conditioner. The scheme of the invention is capable of overcoming the defects of high energy consumption, small application range, high possibility of environment pollution, and the like in the prior art, and realizing the beneficial effects of low energy consumption, large application range and low possibility of environment pollution.

The invention provides a mixture for controlling soil-borne diseases of tobaccos, and a using method of the mixture. The mixture mainly contains the following components: 5-15 parts of rhodiola root extract, 10-20 parts of marigold root extract, 15-35 parts of coptidis rhizome root extract and 50 parts of 95% alcohol. The using method of the mixture comprises the following steps: (1) before the tobaccos are sown, preparing the mixture and water into a solution according to the ratio of 1: 10, evenly spraying the solution to a seedling substrate, wherein 0.1-0.15L of solution is sprayed to every kilogram of substrate, and evenly mixing; after that, normally sowing, and transplanting into a big field after tobacco seedlings grow up to a standard; (2) when the tobaccos are transplanted into the big field, preparing the mixture and water into a solution according to the ratio of 1: (400-600), and filling the solution into seedling holes used for transplanting the tobacco seedlings, wherein each seedling hole is filled with 40-60ml of solution. The mixture has the characteristics of being wide in sterilization range, lasting in effect, non-toxic, safe and the like; after the mixture is adopted, the occurrence rate of the soil-borne diseases of the tobaccos is obviously reduced, and the quality of the tobaccos can be improved.

The invention relates to an aquasol self-adhesive elastic bandage which comprises aquasol and elastic fabric, and the formula of the aquasol is as follows: 62 to 90 percent of emulsion adhesive, 0.1 to 10 percent of tackifier, 0.5 to 20 percent of softener, 0.001 to 2 percent of age inhibitor, 0.1 to 5 percent of environmental-friendly additive and 0.1 to 1 percent of colorant; the elastic fabric is one type of elastic cotton fabric, elastic chemical fiber fabric, elastic chemical fiber/cotton blended fabric; the manufacturing process comprises the following steps that: first, mixing the aquasol by the component, then selecting one type of the elastic cotton fabric, the elastic chemical fiber fabric, the elastic chemical fiber/cotton blended fabric as the backup fabric, putting the mixed aquasol into gluing equipment, uniformly applying the aquasol onto the prepared elastic fabric through rolling, spray coating, roll coating, scrape coating and extrusion coating processes, and manufacturing aquasol self-adhesive elastic bandage products with various specifications through a rolling device. The products manufactured through the method have the advantages of good air permeability, comfortable feel, no mildew after long-termed storage, convenient use and the like.