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129results about How to "Effective grooming" patented technology

Intelligent traffic control method and device for elevated road entrance ramps based on video

The invention relates to an intelligent traffic control method for elevated road entrance ramps based on video. The method comprises the steps that acquired real-time traffic parameter information is transmitted to a background server in real time to be stored by video detection devices through data communication equipment, and is sent to an intelligent traffic control processing server through the background server; the average traffic flow density parameter of the video detection devices is calculated by the intelligent traffic control processing server, and real-time traffic running indexes of the video detection devices are extracted; the average traffic running index of all the entrance ramps is calculated, whether the average traffic running index is larger than or equal to a threshold value or not is judged, if the judgment result shows that the average traffic running index is larger than or equal to the threshold value, a portal frame descends, traffic control is carried out on the entrance ramps, and otherwise the portal frame ascends, and road passage is restored. The invention further discloses an intelligent traffic control device for the elevated road entrance ramps based on the video. The accuracy of automatically detecting traffic jam events is improved, the response speed of ramp emergency control is increased, urban traffic flow is effectively dredged, traffic jams of elevated roads are relieved, and traffic accidents are reduced.
Owner:安徽炬视科技有限公司

Subway passenger conducting management control system and method thereof

The invention discloses a subway passenger conducting management control system and a method thereof. The subway passenger diversion management control system comprises a passenger flow statistical unit, a density grading unit, an information transmitting unit, an information receiving unit and a central control unit, wherein the passenger flow statistical unit comprises an external door detector and an internal door detector; when a subway train departs, the central control unit starts the passenger flow statistical unit; and every time the subway train arrives at one station, the external door detector detects the number of passengers who walk into the door, the internal door detector detects the number of passengers who walk out of the door, the density grading unit grades the density of the current number of passengers in each carriage and sets the density factor, the information transmitting unit transmits the density factor of each carriage to the information receiving unit of the next station, and a subway working personnel reminds the passengers to go to the carriages with fewer passengers to wait for the train according to the density factor of each carriage received by the information receiving unit. Thus, the invention scientifically and effectively diverts the passengers, helps the subway stations to conveniently and quickly conduct the passengers, and facilitates traveling of people.
Owner:SUN YAT SEN UNIV

Viaduct ramp intelligent signal control method and device based on array radars

The invention relates to a viaduct ramp intelligent signal control method and device based on array radars. The viaduct ramp intelligent signal control method comprises the following steps that multiple array radar detection devices are installed on a viaduct, and a signal machine device is arranged in front of an entrance ramp of the viaduct; real-time traffic parameter information of a road section in a detection area is obtained, the average traffic flow density parameter of the road section in the detection area is calculated in real time, and a density-operation index model is established, and the real-time traffic operation index of the road section in the detection area is extracted; the average traffic operation index of the entrance ramp is calculated; the signal conditioning rate of ramp signal control is set, the real-time signal control green-time ratio is calculated, and an operation index-green-time ratio model is established; the signal machine device controls signals of the entrance ramp of the viaduct by calling the operation index-green-time ratio model in a database. By the adoption of the viaduct ramp intelligent signal control method and device based on the array radars, the accuracy of viaduct traffic event detection and the traffic flow operation efficiency can be improved.
Owner:HEFEI GELYU INFORMATION TECH

Express way ramp intelligent inducing method and device based on floating vehicles

The invention relates to an express way ramp intelligent inducing method and device based on floating vehicles. The method comprises the following sequential steps that inducting screen devices are arranged in front of express way ramps, and way segment partitioning and coding, ramp coding and inducing screen device coding are conducted; real-time dynamic parameter data of all the floating vehicles in a floating vehicle detection way network are obtained and transmitted to a background server to conduct standardized storage; the average travel time and the average travel speed of all the floating vehicles on all way segments of a way are calculated; the way segment average travel time is corrected, the real-time traffic operation indexes of all the way segments of the express way are obtained; the average traffic operation index of all the ramps is calculated, and the traffic operation state levels of related way segments of all the ramps are determined; an intelligent traffic inducing model is established, and intelligent traffic inducing strategies are displayed in real time through the inducing screen devices. By means of the express way ramp intelligent inducing method and device, express way ramp intelligent traffic inducing can be achieved.
Owner:HEFEI GELYU INFORMATION TECH

Public bus arrival dynamic inducing method and device based on floating buses

The invention relates to a public bus arrival dynamic inducing method and device based on floating buses. The method comprises the following sequential steps that a geographic space data system is established, and road segments and public bus stops are partitioned and coded; dynamic parameter data of all the floating public buses are obtained in real time; road segment matching is conducted on real-time GPS coordinates of the floating public buses; the road segments matched with early point coordinates and later point coordinates of the floating public buses are obtained, and the driving routes of the floating public buses are obtained; allocation time and road segment travel time of the floating public buses at track road segment sets are calculated; correction travel time of road segments is obtained; passing road segment sets are obtained, the correction travel time of all the road segments is added, and the forecast arrival time of the floating public buses is obtained; an inducing screen device displays the forecast arrival time of the public buses in real time. By means of the public bus arrival dynamic inducing method and device based on the floating buses, the accuracy degree of public bus arrival time forecast can be increased, public travel is effectively dredged, and the information management and service level of a public bus system is increased.
Owner:HEFEI GELYU INFORMATION TECH

Viaduct ramp intelligent inducing control method and device based on array radars

ActiveCN104575049AImprove the accuracy of automatic detectionImprove accuracyArrangements for variable traffic instructionsDensity basedEngineering
The invention relates to a viaduct ramp intelligent inducing control method and device based on array radars. The viaduct ramp intelligent inducing control method comprises the following steps that multiple array radar detection devices are installed on a viaduct, and an entrance ramp inducing screen and an exit ramp inducing screen are arranged in front of an entrance ramp and an exit entrance ramp of the viaduct respectively; real-time traffic parameter information of a road section in a detection area is obtained; the average traffic flow density parameter of the road section in the detection area is calculated, and the real-time traffic operation index of the road section in the detection area is extracted based on a density-operation index model; the average traffic operation index of the entrance ramp and the average traffic operation index of the exit ramp are calculated; the traffic operation state grade of each ramp is determined, an intelligent traffic inducing model is established, and intelligent traffic inducing decisions are displayed in real time by the entrance ramp inducing screen and the exit ramp inducing screen. By the adoption of the viaduct ramp intelligent inducing control method and device, the accuracy of viaduct traffic event detection and the traffic flow operation efficiency can be improved.
Owner:宁波崛马信息科技有限公司

Intelligent traffic lights light control system based on PLC and sensor

The invention discloses an intelligent traffic light control system based on a PLC and a sensor. The intelligent traffic light control system comprises detectors, a PLC, an east road, a west road, a south road, a north road and a traffic control center; detectors are arranged on the roads toward the east, the west, the north and the south from the crossroad; the detector comprises a sensor node, a common WSN node and a Sink node; the sensor node transmits data and information through a common WSN node; the Sink node transmits the information converging on the WSN node to the PLC for processing; the PLC is connected to the traffic control center through an external network; the Sink node, the common WSN node and the sensor constitute a ZigBee local area network. In the invention, the WSN is adopted as an emerging application technology, and the intelligent traffic light control system is small in volume, low in cost, small in power consumption and flexible in network combination, and the wide application of the invention can change people's life. The intelligent traffic light control system combines the MSN and the PLC, and can determine whether the road in the direction is busy according to the quantity of the stranded vehicles waiting for the traffic light. The intelligent traffic light control system is simple and economic, can effectively ease the traffic jam, improves the passage capability of the traffic intersection and has a good application prospect.
Owner:路亮

Combined type axial rotating pulsating heat pipe grinding wheel and preparation method thereof

The invention discloses a combined type axial rotating pulsating heat pipe grinding wheel. The combined type axial rotating pulsating heat pipe grinding wheel is composed of a handle body and a plurality of grinding wheel section blocks capable of being fixed to the handle body in a combination mode; working layers with abrasive particles are arranged on the outer surfaces of the lower ends of thegrinding wheel section blocks, heat exchange fins are arranged on the upper parts of the grinding wheel section blocks, and closed single loop pulsating heat pipe flow channels are arranged in the grinding wheel section blocks; vacuumizing liquid injecting holes are formed in the single loop pulsating heat pipe flow channels, plug heads are sealed on the vacuumizing liquid injecting holes and canbe moved away from the vacuumizing liquid injecting holes, and thus the single loop pulsating heat pipe flow channels are connected with a vacuumizing device or a liquid injecting device through thevacuumizing liquid injecting holes; and the vacuumizing device can vacuumize the single loop pulsating heat pipe flow channels, and the liquid injecting device can inject preset working mediums into the single loop pulsating heat pipe flow channels. The combined type axial rotating pulsating heat pipe grinding wheel has the advantages of efficiently strengthening and channeling the grinding heat generated by grinding arc areas, reducing the grinding temperature and improving the grinding quality.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Preventing and treating method for flood inrush water disaster in shallow buried coal seam mine channel

The invention discloses a preventing and treating method for a flood inrush water disaster in a shallow buried coal seam mine channel. The preventing and treating method comprises the steps that (1) the drainage area F of an upstream channel of a water retaining cofferdam to be constructed on the surface of a working face of a shallow buried coal seam is determined; (2) the upstream flood flow QN of the water retaining cofferdam to be constructed with the recurrence period being n years is calculated; (3) the normal flood flow Q' of the mine surface channel is obtained; (4) a water guiding pipeline of the water retaining cofferdam to be constructed is constructed, and the water retaining cofferdam is constructed; (5) a temporary artificial diversion open channel is constructed; (6) crack filling is conducted; and (7) a permanent artificial diversion open channel is constructed. The preventing and treating method is novel in design and simple in step, and can provide a flood preventing and treating method for the surface channel in three different periods of before stoping, stoping and after stoping of the shallow buried coal seam working face, so that unnecessary waste in the mining process of coal resources can be reduced, and the mine water disaster can be effectively prevented.
Owner:XIAN UNIV OF SCI & TECH

Heat pipe grinding wheel for dry cutting for difficult-to-machined materials and method for manufacturing heat pipe grinding wheel

The invention discloses a heat pipe grinding wheel for dry cutting for difficult-to-machined materials and a method for manufacturing the heat pipe grinding wheel. The heat pipe grinding wheel comprises a matrix and abrasive particles arranged on the matrix, and is characterized in that the matrix comprises a base and an end cover, the abrasive particles are arranged on the end cover, solid lubricants are coated on the abrasive particles, a heat pipe cavity is further formed between the end cover and the base, an air exhaust hole is further arranged on the base, the inside of the air exhaust hole is communicated with the heat pipe cavity, a plug hole is arranged on the outside of the air exhaust hole, an inner plug and an outer plug which are coaxially arranged are disposed in the plug hole, working media are arranged in the heat pipe cavity, and condensation grooves are arranged on two outer surfaces, which are positioned in a condensation section of the heat pipe cavity, of the end cover at intervals. The heat pipe grinding wheel and the method have the advantages that the structure is simple, the cost is low, heat of a grinding arc area can be effectively dissipated when the difficult-to-machined materials are machined, and the bottleneck problem that coolant is difficult to be filled into an existing grinding arc area for effective heat exchange can be solved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Medicine powder screening machine capable of preventing blockage

The invention discloses a medicine powder screening machine capable of preventing blockage. The medicine powder screening machine comprises a box body, wherein the two sides of the bottom of the box body are fixedly connected with supporting legs; the bottoms, at corresponding sides, of the two supporting legs are fixedly connected with a bearing plate; a collecting box is arranged on the center of the top of the bearing plate; movable slots are formed in the two sides of an inner cavity of the box body; the top and the bottom of an inner cavity of each movable slot are fixedly connected with supporting springs; and the corresponding sides of the two supporting springs are fixedly connected with a sieve plate. According to the medicine powder screening machine disclosed by the invention, the supporting plates, an electric telescopic pole, a clearing motor, a fixed sleeve, a rotary disc and clearing furs are matched for use, so that medicine powder in sieve pores can be effectively cleared, and therefore, the using effect of the medicine power screening machine is better, and the problem that screening efficiency of the medicine power screening machine is relatively low as a great deal of medicine powder accumulated in the sieve pores cannot be effectively cleared in a long-time using process of the medicine powder screening machine is solved.
Owner:内蒙古普康药业有限公司

Excavation operation method for garbage heap body

The invention discloses an excavation operation method for a garbage heap body. The excavation operation method comprises the following method steps of site investigating, engineering risk eliminating, excavation operating, slope controlling, safety measuring, precipitation water diversion measuring, air diversion measuring, water filtration measuring, heap body covering, rain and pollution dividing, and sterilizing and deodorizing. According to the excavation operation method for the garbage heap body, the sufficient site investigation work is conducted before excavation, the appropriate measures are conveniently adopted to avoid risks, leachate of the garbage heap body can be effectively guided by arranging a leachate guiding and exhausting blind pit, smooth guiding of the buried air iseffectively ensured by arranging a drilling and air guiding well, and the safety of the workers is ensured; the water in the garbage is filtered by arranging a water filtering table so that transferring of the garbage is facilitated, reasonable and standardized excavation operation is conducted on a landfill, the safety risks are effectively avoided, other buildings can be reconstructed at the landfill, the reasonable disposal of the landfill can be achieved, meanwhile, the problem of urban land tension can also be solved.
Owner:安徽国祯环卫科技有限公司 +1

Waterproof comprehensive pipe gallery structure of ecological system of sponge city

The invention belongs to the technical field of rainwater reutilization and waterproof comprehensive pipe gallery construction and particularly relates to a waterproof comprehensive pipe gallery structure of an ecological system of a sponge city. The structure is used as a drainage device in heavy rain and applied for irrigation after raining, so that the content of heavy metal ions in rainwater is reduced, the influence on underground water is reduced, urban waterlogging is alleviated, the functions of the sponge city are realized, and ground precipitation is filtered and drained. Water in the soil around the comprehensive pipe gallery is collected and circulated, damaged caused to a gallery body by water accumulation at the periphery of the gallery body and water seepage, water leakage and the like in the gallery body, the service life of the gallery body is indirectly prolonged, and self-circulation of underground water in the soil can be formed; the waterproof and anti-corrosion construction problems of existing underground pipe galleries are solved, the maintenance cost of the underground pipe galleries in the later use period is reduced, and the service life of the underground pipe galleries is prevented from being shortened by water leakage and corrosion. In this way, the service life is prolonged, the problems of water acquirement, water utilization and the like of thecomprehensive pipe gallery are effectively solved, and the structure has high practicability and applicability.
Owner:SHENYANG JIANZHU UNIVERSITY
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