37results about How to "Considerable indirect economic benefits" patented technology

The invention discloses an intelligent monitoring and early warning method for an elevator brake. The method comprises the following steps of 1, a hardware structure of an elevator brake intelligent monitoring and early warning system is built in an elevator machine room; 2, small sample monitoring data are collected, feature vectors of signals are decomposed, reconstructed and extracted through awavelet packet, and a health mode library is built; 3, the running state of the elevator brake is monitored in real time, and early warning is carried out on faults possibly occurring through an SVMclustering analysis algorithm; and 4, according to a fault prediction result, maintenance personnel of an elevator are guided to adjust and optimize the maintenance plan, predictive maintenance is carried out, the faults of the brake are eliminated in a sprouting state, and accidents are avoided. According to the intelligent monitoring and early warning method, key parameters like an elevator brake gap, the abrasion amount of a brake shoe, a brake distance, a brake coil voltage, a traction machine working current, brake temperature, noise are monitored in real time through a non-contact type measuring method, data mining and analysis are carried out on the large amount of monitoring data, so that fault hidden danger of the elevator brake is predicted in time, and safe operation of the elevator is guaranteed.

The invention relates to a device and a method for testing brake performances based on stereoscopic vision, and belongs to vehicle performance testing road test equipment. The device reconstructs a vehicle body contour line three-dimensional coordinate according to vehicle body images shot by two cameras and by utilizing a computer image processing technique to obtain motion trails of a vehicle in the brake process; and speed, braking deceleration and braking deviation displacement are calculated in real time, so that vehicle braking performances are evaluated. The device comprises two DH-HV3150 UC cameras, two stepping motors, two tensioning wheels, a camera support, an industrial control computer, a millimeter-wave radar, three calibrated drones of a same specification and the like. According to the device and the method for testing brake performances based on stereoscopic vision, motion trails of the vehicle in the brake process can be calculated in real time. The method design idea is unique, the testing accuracy and the repeatability are good, and further, the structure is simple, and the installation is convenient. Research results have certain theoretical values and economic values and have good application and promotion prospects.

The invention relates to a preparation method of a polyester FDY mother filament and a monofilament thereof. The method consists of: adding an antibacterial polyester melt containing a cuprous material into a conventional polyester melt pipe by a melt direct-spinning pipe adding way, performing mixing by a static mixer in the melt pipe, then carrying out melt spinning, cooling, drafting, heat setting and winding to obtain a polyester FDY mother yarn. According to the process, specifically, the spinning temperature is 292DEG C, the wind temperature is 16-18DEG C, the wind speed is 0.7-0.85m/s, the drafting temperature is 95DEG C, the drafting ratio is 1.8-2.2 times, the heat setting temperature is 150DEG C, the winding tension is controlled at 2.2-2.5cN, and the winding speed is 3900-4500 meter/minute. While acquiring direct economic benefits, the method provided by the invention also achieves considerable indirect economic benefits, and seizes the DTY emerging market under the current situation of fierce market competition. According to the invention, the antibacterial material is added to enhance the antibacterial properties of the fiber and expand its application scope.

The invention discloses a method for preparing firewood sticks by waste cassava residues and application on charcoal preparation. The method comprises the following steps of taking the waste cassava residues produced in the production process of cassava starch as raw materials, drying the waste cassava residues to obtain dried residues, and preparing the formed firewood sticks by the dried residues, wherein after the waste cassava residues are dried, the water content rate of the dried residues is controlled to range from 10% to 15%, and the temperature of a mold for preparing the formed firewood sticks by the dried residues is controlled to be 230-280 DEG C. The firewood sticks prepared by the method are further baked into charcoal products which have the advantages of low ash content, low sulphur content, charcoal content, high heat productivity and the like, and are high-quality biomass energy. By the method, the waste cassava residues can be subject to industrial processing to form three levels of products (the dried residues, the firewood sticks and charcoal), so that circulated economic ecological chain of 'cassava-starch-cassava residues-biomass energy' can be formed, simultaneously, the risk that the waste cassava residues pollute environments can be eliminated, the direct energy-saving benefit is obvious, and the indirect emission reduction economic benefit is remarkable.

The invention relates to an automobile slide resistance detection device which mainly consists of a force measuring mechanism, a buffer damping mechanism, a buffer spring pressing groove steel frame mechanism, a straddling winch underframe mechanism, a pressing mechanism, and a zipper type secure pulling hook device. The invention mainly aims at resolving the problem that the slide resistance of automobiles is hard to be detected on the detection line; the detection device is installed in a braking bench to pull the automobiles in virtue of the braking bench, so that the detection system can fast and effectively detect the slide resistance of the automobiles, thus realizing the intelligent detection of slide resistance, enhancing detection efficiency, realizing multi-functionalization of the detection bench, and reducing the cost of detection equipment, and further guaranteeing the technical condition of the chassis, using the fuel more economically, and reducing discharge pollution; the indirect economical benefit is considerable, and the automobile slide resistance detection device is very favorable for economic development..

The invention relates to a method for reaming by detonation of a detonating cord under a well. The method comprises the following steps: sequentially mounting a pilot reamer, an explosion reamer and avariable-diameter hole trimming device at the lowest end of a drill stem from bottom to top; enabling the drill stem to rotate and descend simultaneously, and when the drill stem descends until the explosion reamer is completely flush with the height of a predetermined reaming section, enabling the drill stem to stop descending and rotating; opening a mud pump and pressurizing same to the set detonation pressure to detonate the detonating cord of the explosion reamer, wherein shock waves generated by the explosion act on rocks of a well wall to cause stratum rocks on the entire periphery of this section to be crushed and fractured, thereby achieving reaming; opening the mud pump to the construction displacement and taking rock debris generated by the explosion reaming out of the well; enabling the drill stem to continuously descend, so that the variable-diameter hole trimming device reaches the reaming section to trim the well wall of the reaming section; and pulling the drill stem out of the well, putting a hole diameter logging unit into the well to detect the hole diameter and determining whether predetermined reaming requirements are met. By adopting the method, the reaming speed is high, risks under the well are low, the phenomena of repeatedly pulling a drill out of the well and putting the drill into the well is avoided and the well drilling efficiency is improved greatly.

The invention discloses a method for remotely sensing an RFID electronic boundary based on an olfaction algorithm. The invention aims to provide a method for remotely sensing an RFID electronic boundary based on an olfaction algorithm, which is provided with a technical system for solving the problems of traditional boundary points, positioning, manual CNSS/total station measurement boundary points, large-range village and town ownership information autonomous acquisition and processing, RID electronic boundary point equipment and a land ownership/current situation investigation robot through combination of artificial intelligence and surveying and mapping. The unmanned aerial vehicle investigation monitoring robot and electronic boundary point intelligent sensing are realized, and the popularization and application of the new technology and the new mode can improve the land use efficiency of rural land investigation and monitoring, and traditionally depends on a remote sensing technology or artificial photo shooting. The problems that in the prior art, the remote sensing technology is shot from the air, the artificial intelligence level is low, the ground ownership survey is lack of robot autonomous control, collection and processing theories and methods, the GNSS combined total station technology is mostly adopted, and the measurement process mostly depends on manpower and depends on an ownership survey online service platform are solved.

The invention provides a method for preventing misoperation blocking, which is used for a power supply network. The method comprises the following steps: the incoming earthing switch of a lower substation or the signal of a handcart is connected with the opening entrance of a first line optical fiber differential protection device, and is transmitted to a second line optical fiber differential protection device corresponding to a higher substation through the line optical fiber differential protection device; If the optical fiber differential protection device of the second line receives the earthing state signal of the incoming earthing knife switch or the earthing state signal of the handcart, the locking and closing circuit is executed. If the optical fiber differential protection device of the second line receives the signal of ungrounded state of the incoming grounding knife switch or the signal of ungrounded state of the handcart, the unlocking and closing loop is executed. The incoming grounding switch or handcart is connected to the closing circuit of the corresponding feeder circuit breaker of the upper substation to realize the electric lockout and prevent the misoperation. Through the technical proposal of the invention, the purpose of far and near control anti-misoperation of the electric equipment of the upper and lower substations is achieved, and the misoperationof human factors is reduced.

The invention relates to an oil field microcapsule non-acid self-generating thermal blocking remover and a preparation method thereof. The thermal blocking remover comprises a water-soluble microcapsule blocking remover KR-100A and a water-soluble microcapsule blocking remover KR-100B, and the mass ratio of the water-soluble microcapsule blocking remover KR-100A to the water-soluble microcapsule blocking remover KR-100B is (0.9-2.1): 1, wherein the water-soluble microcapsule blocking remover KR-100A is prepared from ammonium chloride, potassium chloride, solid paraffin, polyvinyl alcohol and dimethyl sulfoxide; the water-soluble microcapsule blocking remover KR-100B is prepared from sodium nitrite, sodium nitrate, EDTA-2NA salt, solid paraffin, polyvinyl alcohol and dimethyl sulfoxide. Contents in the capsule core break through the capsule wall under proper conditions, react and release heat under the initiation of an external catalyst, generate gas and cooperate with other assistantsoutside the capsule wall to play a role in cleaning and unblocking.