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64results about How to "Strengthen conservation" patented technology

Die for building materials products and preparation method thereof

The invention discloses a die for building materials products and a preparation method thereof. The die provided by the invention contains a preformed female die and is prepared by the following steps of: cleaning the female die by an air pump, coating a mold releasing agent on the surface of the female die, uniformly laying a silica gel surface layer on the surface of the female die coated with the mold releasing agent to form a nonstick material surface layer, placing a bar of angle iron at each long side of the die; successively laying a silica gel bonding coat and a layer of gauze on the silica gel surface layer after its gelation, laying an epoxy resin bonding layer and a layer of glass fiber grid cloth after coagulation of the silica gel bonding layer to form a bonding layer; laying an insulation plate and flat iron on the bonding layer, pressing tightly by using a steel plate and simultaneously installing seal section bars at the four corners of the die; laying epoxy resin mortar on the surface of the insulation plate to form a light filling layer; laying a layer of glass fiber biaxial cloth on the light filling layer, and laying an epoxy adhesive coat on the glass fiber biaxial cloth to form a hard base material. The die provided by the invention has a simple structure, is easy to demould, and can be used to effectively guarantee the quality of moulded products. In the meantime, the preparation method provided by the invention is convenient to operate, requires low cost, and is easy to maintain.
Owner:ENERGY EFFICIENCY TECH

Early warning service management system based on remote expert service

The invention relates to an early warning service management system based on remote expert service. In the system, sensors based on hybrid automatic repeat request (ARQ) technology collect the grouped data of a bridge; the machine to machine (M2M) technology is adopted to monitor the information between the intelligent sensor devices, the monitoring information is transmitted remotely in a wireless digital manner; a terminal collector performs bidirectional data transmission on the monitoring information through a terminal remote transport protocol and an intelligent network platform, the data collected by the terminal collector are compared with the stress simulation database information of the bridge design and off-design small probability state finite element computation structure established by an expert service system, the comparison result is used for evaluating and processing; early warning is performed according to the comparison and evaluation result of the condition and monitoring information of the bridge; and when the monitoring data are abnormal or the warning level is higher, the system automatically sends a message to an expert and the expert can give corresponding handling advices and measures timely, thus the timely and dynamic management of information can be realized.
Owner:中冶(北京)交通科技发展有限公司

Detection algorithm of cement concrete pavement slab staggering quantity

The invention discloses a detection algorithm of a cement concrete pavement slab staggering quantity. The detection algorithm specifically comprises the following steps of: inputting a three-dimensional image data matrix, and filtering the data; orderly taking each line of the three-dimensional image data matrix O'' after filtering, and solving the slab staggering quantity corresponding to each line in a line-by-line manner, namely solving the slab staggering quantity of the line after finding out all inflection points of the line; taking the inflection points, of which the difference of the horizontal ordinates is M, from an inflection point matrix G, and solving the difference between each two inflection points so as to obtain a height difference matrix after all the lines are processed, wherein the maximum of the height difference matrix is the slab staggering quantity corresponding to the line; solving the slab staggering quantities h1, h2,... and hm in a line-by-line manner, averaging the m slab staggering quantities, and thereby obtaining the pavement faulting quantity of the image acquisition area. The detection algorithm of the cement concrete pavement slab staggering quantity is simple in computation and short in run time, and does not need manual work. By using the surface measurement, the pavement faulting quantity can be detected by only inputting the acquired three-dimensional image data of the cement concrete pavement; and therefore, the detection algorithm is high in efficiency and accurate in detection.
Owner:CHANGAN UNIV

Grooved texture depth detection algorithm for cement concrete pavement

The invention discloses a grooved texture depth detection algorithm for a cement concrete pavement. The grooved texture depth detection algorithm comprises the following steps: inputting a three-dimensional data matrix of an image, and performing filtering processing on data; performing partitioning processing on the three-dimensional image data matrix after filtering, and dividing the data matrix to N uniform blocks according to the size of the matrix; calculating the corresponding texture depth of the block one by one; and calculating the mean texture depth one block by one block, and calculating an arithmetic mean of the N mean texture depths, namely the texture depth value TD of the image. According to the grooved texture depth detection algorithm, the real-time, high-efficient and quantitative detection of skid-resisting capacity of the cement concrete pavement can be realized. The method provided by the invention has the advantages of simplicity in calculation and short operation time, and is suitable for being used in a real-time system. According to the method provided by the invention, human intervention is not required, surface measurement is adopted, the efficiency of the method is high and the detection is precise; the influence of an inclined plane is eliminated, and the range of applications is wide, and potent information support can be provided for maintenance and management of the cement concrete pavement, and the maintenance and management level of a highway is improved.
Owner:CHANGAN UNIV

Highway pavement disease positioning method based on unmanned aerial vehicle

The invention discloses a highway pavement disease positioning method based on an unmanned aerial vehicle. The unmanned aerial vehicle system is integrated with a high-resolution video collector, a 5Gmobile communication terminal and a Beidou satellite positioning navigation module; and the method comprises the steps of acquiring road surface high-resolution image data, unmanned aerial vehicle flight height data and unmanned aerial vehicle position information; based on the transmission of detection data of the 5G mobile communication technology, the pavement disease detection model based onthe improved DPM is used for detecting and positioning the pavement disease. The beneficial effects of the method are that the method effectively irons out the defects that a conventional pavement disease data obtaining method is low in automation degree, is high in obtaining cost, and is slow in speed, and a pavement disease detection and positioning method is low in detection efficiency, is large in detection precision fluctuation, is large in workload of a positioning process, and is low in positioning automation degree; and the method is high in practicability and can be widely applied topavement disease detection and positioning of highways, national roads, other low-grade highways and urban roads.
Owner:SOUTHEAST UNIV +1

Artificial marble having decorative effect and manufacturing method thereof

The invention relates to the field of architectural decoration/finishing materials, and particularly relates to an artificial marble slab having a decorative effect and a manufacturing method thereof. The artificial marble slab having a decorative effect comprises sulfoaluminate cement, white quartz sand, water-based polycarboxylic acid water-reducing agent, water-based organosilicon defoaming agent, pigment and concrete antishrinking agent. The manufacturing method of the artificial marble slab having a decorative effect comprises the following steps: proportionally preparing mortar, defoaming, performing vibration compaction, netting to obtain a blank, then drying, demolding, and maintaining. According to the invention, the artificial marble slab having a decorative effect has favorable hardness, abrasion strength, shear strength, folding strength and weather resistance, low internal porosity and clear texture; the manufacturing method is short in maintenance time and low in mixing water consumption in the construction process, effectively compensates for dimensional instability caused by shrinkage of cement, and improves the demolding convenience; and the manufacturing method greatly improves the production efficiency and lowers the operating cost of production.
Owner:JIANGSU WONIUSHAN THERMAL INSULATION & WATERPROOF TEHNOLOGY

Method for removing shadow from pavement image based on illumination compensation

The invention provides a pavement image shadow removing method based on illumination compensation, which comprises the following steps: 1, collecting two-dimensional pavement shadow image and grayscale processing the two-dimensional pavement shadow image to obtain grayscale pavement image I (i, j); I (i, j) is pretreated to obtain that pretreated pavement image Ih (i, j); 2, carrying out illumination compensation processing on that preprocess pavement image Ih (i, j) to obtain the illumination compensated image I 'h (i, j); the shadow factor C (i, j) being compensated to the pixels of the shadow region in the gray-scale road surface image I (i, j) to obtain a preliminary shadow removing image I '(i, j); 3, carrying out spline interpolation on penumbra regions of pixel point of each row andeach column in a preliminary shadow removing image I '(i, j) to obtain an interpolated image I' non (i, j); The penumbra region of the interpolated image I'non (i, j) is restored to get the pavementshadow removing image Inon (i, j). The invention completely retains the pavement texture information, adopts the illumination compensation to remove the shadow to the pavement image, and avoids the shortcomings of high cost of the crack monitoring vehicle and low crack detection accuracy of the crack detection system of the motion camera.
Owner:CHANGAN UNIV

Construction method for external wall surface washed stones

The invention belongs to the technical field of building outer wall construction, and discloses a construction method for outer wall surface washed stones. The construction method comprises the following steps: conducting base layer treatment, specifically, plastering or brushing an interface agent on an outer wall to obtain a washed stone wall surface base layer; snapping lines, specifically, snapping grids/dripping sutures on the outer wall; pasting grid division strips and water dripping strips, specifically, arranging the grid division strips or the water dripping strips according to the grids/dripping sutures; brushing cement mortar, specifically, scraping the cement mortar on a wet base layer to form a cement mortar layer; smearing a washed stone slurry surface layer, specifically, smearing washed stone slurry on the cement mortar layer, and kneading, pressing and compacting to form the washed stone slurry surface layer; flushing the surface layer, specifically, after initially setting the washed stone slurry surface layer, flushing the surface of the surface layer by using an under-pressure spray head to expose the washed stones and form a washed stone surface; and forming strips and pointing, specifically, after naturally air-drying the washed stone surface, forming dividing strips and water dripping strips, and conducting pointing through cement and fine sand mortar. The construction method is short in construction period, suitable for large-area outer wall decoration, not prone to stripping, resistant to pollution, free of discoloration and good in economic benefits.
Owner:杨文博

Differential chain production assembly line for double speed converting regulation of separation distance chain wheel for lamp transportation

The invention discloses a differential chain production assembly line for double speed converting regulation of a separation distance chain wheel for lamp transportation. The differential chain production assembly line structurally comprises a chain wheel correcting case, a bottom frame plate seat, a transverse stay bar, a differential chain belt, a worktable bracket, a shaft driving motor and a baffle plate shell rack. The differential chain production assembly line achieves ring-by-ring adjusting and correcting effect by matching the chain wheel correcting case with the differential chain belt, and front and back pressing double speed of a double roller bearing are formed to improve a rotating effect, so that an elastic stretching effect of teasing to prevent uptightness is obtained by means of bottom side single-sided displacement chain movement, the friction property of a cotton cover is avoided, an effect that a rod end is pressed out of a smooth end cap is achieved, and the chainbelt deviating a track can be corrected ring by ring to reset the track as a low position obtained by a vertical diameter theorem of a disc is knocked by a hammer head cap of a roller ball, so that transportation of the integral lamp is not intervened and a separation distance chain wheel double speed small box body regulating effect is achieved. An effect that a potential magnetic plate pushes abearing roller to accelerate and rotate is achieved, the integral tensile force of the differential chain is improved, and chain wheel maintenance is enhanced.
Owner:谢细珠

Preparation method of high-heating electric shock curing concrete structure

The invention discloses a preparation method of a high-heat-generation electric shock curing concrete structure, which specifically comprises the following steps: mixing fine aggregate, a non-conductive nano material and a conductive nano material, and fully and uniformly stirring to obtain a dry material A; mixing the cementing material and the conductive filler, and fully and uniformly stirring to obtain a dry material B; mixing the dry material A and the dry material B, fully and uniformly stirring, adding water and a water reducing agent, and fully and uniformly stirring to obtain the non-conductive nano material modified concrete material; and preparing the non-conductive nano material modified concrete structure through electric excitation curing. The electric heating property development rule of the electric excitation curing concrete structure is fully considered, the heating efficiency of the concrete structure under the electric excitation curing effect can be remarkably improved by adding proper non-conductive nano materials into the structure, under the same power-on power, the curing temperature of the concrete with the high heating efficiency is higher, and the curing effect is better. The method is beneficial to development of mechanical properties and is suitable for rapid and high-quality construction of an electric excitation curing concrete structure.
Owner:HEBEI UNIV OF TECH

Lie-down wheelchair

The invention provides a massage rehabilitation device for a lie-down wheelchair, and the lie-down wheelchair thereof. The massage rehabilitation device includes at least one air pressure regulator, thigh support plates, shank support plates, a plurality of massage wheels, a massage motor and a bottom rod which is transversely fixed to the inner side walls of a support body, one ends of the air pressure regulators are fixed to bottom rod, the other ends of the air pressure regulators are hinged to the rear surfaces of the shank support plates, the two sides of the thigh support plates are fixed to the inner side walls of the support body, a plurality of matched notches are formed in the side walls of the fronts of the thigh support plates and the side walls of the tops of the shank supportplates respectively, each massage wheel is rotatably arranged at the corresponding notch, the side walls of the fronts of the thigh support plates and the tops of the shank support plates are hingedto side openings of the support body through the same massage shaft, the massage motor is rotatably matched with the massage shaft, each massage wheel slidably sleeves the massage shaft, and massage balls are fixed to the circumferential edge of each massage wheel. Compared with the prior art, the massage rehabilitation device and the lie-down wheelchair are conducive to massage rehabilitation ofknees, so that knee care is reinforced; and the massage balls adapt to different parts, so that the application range is expanded.
Owner:CHANGSHA NINGHU MACHINERY CO LTD
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