740results about How to "Ensure safe operation" patented technology

The invention discloses a ship collision risk analysis method based on AIS (automatic identification system) data. Based on historical AIS data and standard ship selection and conversion, a density clustering algorithm is used for establishing a heat map of a ship collision risk to realize spatiotemporal visualization of the ship collision risk; based on real-time AIS data and the ship position field, the course direction field, and the navigational speed field, a regional ship collision risk assessment model is constructed, and a Gaussian kernel function kernel density estimation algorithm isused for proposing a dynamic ship collision risk visualization method to realize areal-time update of the regional ship collision risk. The ship collision risk analysis method is based on the AISdata,the spatiotemporal visualization of the ship collision risk is realized,the visual image after the complex abstract ship traffic flow multi-attribute information is effectively dug and fused is realized, so that the risk level of the environment of the location of the ship can be intuitively and conveniently obtained by a driver or an operator, thusself-alertness is improved, the reasonable control measures are taken, and the safe operation of the ship is ensured.

The invention discloses a long-span reinforced concrete inner support structure of a rectangular deep foundation pit, which comprises a foundation pit edge breast wall retaining structure, a plurality of layers of inner support three-dimensional timbering structures with steel structure support columns, and a top beam, wherein each inner support three-dimensional timbering structure comprises a foundation pit corner part structure, a foundation pit middle part symmetrical and opposite support structure, and longitudinal beams; each foundation pit middle part symmetrical and opposite support structure comprises a cross beam and two small inclined struts positioned at the two ends of the cross beam; the longitudinal beams are beams which are parallel to long edges of the foundation pit and are positioned at the middle part of the foundation pit; the steel support columns directly reach below the bottom of the foundation pit; the bottoms of the steel structure support columns are anchored by placed concrete; ring beams are arranged at parts where the cross beams, the longitudinal beams and the steel structure support columns at the middle part of the foundation pit are intersected; a support waist beam is arranged at a connection part between the inner support three-dimensional timbering structure and the middle part of the foundation pit edge breast wall retaining structure; and the cross beams, longitudinal beams, the ring beams and the waist beam of the inner support three-dimensional timbering structure are reinforced concrete or combined type large steel frame structures. The inner support structure is simple and visual in design, convenient to construct, large in support span, and significant in timbering effect.

The invention discloses a floating bulwark with a flexible structure. The floating bulwark with the flexible structure comprises multiple water surface wave absorbing structural units, an underwater wave absorbing structure and an anchoring system. Each water surface wave absorbing structural unit comprises at least two cylinder-shaped floating cylinders. Every two adjacent cylinder-shaped floating cylinders are connected through a connection column in a rigid mode. The underwater wave absorbing structure comprises a wave-proof net and wave-proof balls. The wave-proof net is arranged below the cylinder-shaped floating cylinders. All the water surface wave absorbing structural units are elastically connected through connecting devices. With the cylinder-shaped floating cylinder connection structures and especially the double-connection-cylinder structures, materials can be effectively saved or the width of the bulwark can be effectively increased. By absorbing wave energy on the water surface and below the water surface, facilities can work normally. The connection devices can connect all the modules into a whole to fight against waves and collision among all the modules can be avoided. A concave steel plate can facilitate replacement of an aged rubber ring. The anchoring system can ensure safety working of the floating bulwark under the action of the waves, and meanwhile, the floating bulwark can work normally in water zones where piling is not convenient.

A failsafe system and method for ensuring the safe operation of an aircraft with a ground movement system to drive the aircraft independently on the ground is provided. The system includes at least one aircraft nose or main drive wheel powered by an onboard wheel driver responsive to sensed aircraft and ground movement system operating parameters to continue operation in response to parameters within normal limits or to prevent continued operation if sensed parameters are outside normal limits and indicate continued operation to be unsafe. The onboard wheel driver includes a locking assembly responsive automatically or manually to signals indicating sensed parameters to lock the onboard wheel driver in an activated or an inactivated condition, depending on whether operation of the ground movement system can be continued safely.

Structural analysis automation allows the implementation of more detailed or accurate analysis methodology that reflects the actual behavior of the damaged or repaired structure and consequently improves the resulting damage disposition for example by Increasing the allowable damages and structural repairs applicability, increasing the allowable damage limits causing the reduction of unnecessary installation of structural repairs, optimizing repairs and increasing fly-by periods and inspection intervals.

The invention relates to a method for processing oil sludge, and is suitable for processing ground crude oil in oil field, and a whole technology does not impacted by the loading. According to the existence state of oil, sand and water in oil-containing sludge, by the steps of heating, adding drug, homogenizing, aerating, depositing and centrifuging at high speed, the existence distribution state of oil, sand and water can be changed, the sand-in-oil phenomenon in the original oil sludge is gradually changed to sand-in-water, and the inclusion viscosity of the crude oil to sediment is reduced. Through settlement, oil sludge can be separated before entering into a centrifuge, the loading of the high speed centrifuge is reduced, processing amount of a device is increased, and the unit energy consumption is reduced. The separated sediment surface as well as the internal oil content are reduced to the lowest limitation. The unit treatment process parameter can be freely adjusted according to the oil-containing sludge processing requirement, the method has certain adaption capability; the process is simple and smooth, the operation and management are convenient, recovered crude oil and processed sediment can reach the standard in a stable manner, and a system employs the combination of automatic mode and manual operation.

The invention discloses a reinforcement method and a reinforcement structure for treating railway soft soil roadbed settlement overweight before operation. The reinforcement structure mainly consists of five parts, namely a main bearing structure system, a reinforced cushion layer structure system, a foundation bed drainage system, a settlement observation system and a reserved grouting system. The technical problems that the existing roadbed is greatly damaged, the construction period is long, the construction property is low, the quality is difficult to control and the problem that the soft soil roadbed settlement overweight is caused in the conventional technical scheme are effectively solved.

The invention provides a method for controlling a system for supervising operation of special self-wheel operation equipment. The method is based on a multilevel supervision system of the special self-wheel operation equipment operation supervision system using corresponding management departments of a railway bureau, a railway section and a railway region as a responsibility organ, carries out a uniform and regulative principle, adopts a multilevel monitoring mode, strictly compels and assists target monitoring, implements a people-oriented and intelligence-integrated safety work monitoring mode and a supervision mode for the operation of special self-wheel operation equipment, defines the operation monitoring parameters of the special wheel operation equipment, determines a typical accident type, strengthens the function of intelligent accident prevention, enhances the monitoring and recording protection, exerts a wireless communication network and GPS positioning of a supervising device to realize intelligent and integrated supervision of the system and monitoring of the operating position and the state of each special self-wheel operation equipment, displays the operation supervising state, rapidly transfers original record data and analysis so that the system has perfect integrated supervising function, remarkably promotes the safety supervision and emergent processing capacity on operation of special wheel operation equipment all the way, prevents the accident of operation safety more effectively, provides powerful guarantee for a whole line project of railway and operation safety of the maintained vehicles. The method is suitable for various supervision systems of the special self-wheel operation equipment.

The present invention discloses a ballastless track plate seam depth non-destructive detection method and equipment based on vibration. For the problem that a feeler gauge method, a non-destructive detection method based on ultrasonic wave and a non-destructive detection method used in detecting a ballastless track plate seam depth have large limitation and the need of actual detection is difficult to satisfy in the prior art, the scheme provides the method and the equipment and aims to use an exciting device to allow a track plate edge to generate tiny vibration, and through analyzing the spectral characteristics of the vibration, the depth of a track plate seam is visually, conveniently, efficiently and accurately measured.

The invention relates to a method for producing Portland cement clinker with incineration slag of municipal solid waste. The method solves the problem of crust and blockage caused by chlorine through the reconstruction of the prior kiln which is realized by mounting a by-way air exhaust device. For a kiln system with a kiln row and a furnace row which are independent from each other, the by-way air exhaust device is arranged in an uptake of a kiln end gas chamber in the kiln row close to a five-stage cylinder; while for common industrial kiln, the air exhaust device is arranged between an outlet of decomposing furnace and an inlet of the five-stage cylinder or arranged at an uptake of an outlet of the five-stage cylinder; the fly ash passes through a kiln head, the kiln end gas chamber, or the decomposing furnace and then is sprayed into the kiln. The use frequency of the by-way air exhaust device is between once per four hours and once per three days, the temperature of the air entering the by-way air exhaust device is controlled to be more than 950 DEG C. the method has the advantages of small reconstruction investment, low treatment cost, production of Portland cement clinker having wide application range and meeting JC/T853-1999 standards of Portland Cement Clinker, realization of reclamation, contribution to the development of cyclic economy, and reduction in consumption of natural resources and energy of the cement industry.

A system for obtaining inline sensory feedback from an electroactive polymer based transducer for use in feedback control applications is disclosed. Specifically a method of obtaining sensory feedback from an electroactive polymer based transducer includes the steps of: receiving a user input in a control system, combining it with a control system feedback signal from a sensory feedback circuitry and producing a control signal; receiving the control signal in an amplifier and sensory tone generator, combining it with an amplifier feedback signal from the sensory feedback circuitry and producing a power signal; receiving the power signal and an environmental disturbance in an electroactive polymer transducer and sensory circuitry and responsive to the user input producing a sensory signal; receiving the sensory signal in the sensory feedback circuitry and producing the control system feedback signal and the amplifier feedback signal; and producing a data output in the control system.

The invention discloses a flush type digital self-control device of coal cutter, which comprises the following parts: upper set, lower set in connection with the upper set and peripheral equipment control circuit at core of lower set control, wherein the lower set adapts working control machine as core, which contains CPU in connection with the display data communication line through display interface and programming interface of edible controller in the lower set through serial interface and keyboard through keyboard interface; the power interface of working control machine connects the outer power through first switch power and electric filter; the output end of first switch power connects the inverter, whose high pressure power output end connects the power interface of display; the CPU stores the control program of upper set and appliance management program.

A fluid control valve includes an adjustable soft start capability and pressure indicator device. The fluid control valve isolates an input port and connects an outlet port to an exhaust port when the fluid control valve is in its closed position. A system is provided for locking the fluid control valve in the closed position. The indicator device is used to provide an indication of the pressure within the outlet port to ensure safe operation.

The invention relates to a rail vehicle operation performance testing device which comprises test platforms and degree-of-freedom excitation devices arranged on the test platforms and used for simulating different track situations. The test platforms are arranged below steering frames of a train to be tested, each degree-of-freedom excitation device comprises a vertical excitation device body and/or transverse excitation device body and/or longitudinal excitation device body, and weight balancing equipment is arranged in the train. Tests can be carried out on different rail vehicles in different rail distances, and if the testing device is used to the largest extent, testing capital can be saved and accuracy of a test result is guaranteed. Besides, the device can simulate different track curves, different slops, different track superelevations and the like according to actual situations so as to reach true track operation situations. Accordingly, actual operation situations of the vehicle to be tested in a real track can be simulated, so that curve passage capacity, vertical shock absorber performance and the flexibility coefficient are measured, real and effective test data are provided for train operation performance researches, and the method plays an important role in guaranteeing safe operation of high-speed railways.

A stair-climbing device including a support unit, a climbing unit driven by a motor and a control unit for controlling operation of the climbing unit, wherein a detection unit is provided for detecting the current position of the support unit with respect to one or several steps of a stair which includes at least one non-contact sensor, wherein the detection unit provides signals to the control unit, which signals contain information about the current position of the support unit with respect to one or several steps of the stair, and wherein the control unit is adapted to control operation of the climbing unit depending on signals of the detection unit.

The invention discloses a sustained circulating type method for adsorbing and recycling oil gas , which consists of the following steps: (1) adsorbing and recycling the oil gas by means of an active carbon bed in an adsorption tower; (2) the desorption and regeneration of the adsorption tower saturated is carried out; (3) the oil gas desorbed with high concentration enters a recovery tower to be absorbed by the body of liquid meager gasoline; (4) the tail gas in the recovery tower reenters the adsorption tower to be cycled in a sustaining way, wherein, at least two adsorption tanks in the adsorption tower alternately carry out adsorption and desorption generation, thus leading the oil gas adsorption to be carried out in a sustained circulating way, at the same time, the remote monitoring can be realized by using an automatic control program. The sustained circulating type method for adsorbing and recycling oil gas of the invention is characterized by high efficiency, low energy consumption, convenient operation and safe and reliable running.

The invention provides an intelligent sensing and remote and unified regulating system for deep-mining mine ventilation. The intelligent sensing and remote and unified regulating system is mainly composed of intelligent sensing equipment, a PLC control cabinet (3), a middle-layer optical fiber ring network (18), a ring network exchanger (17) and an industrial personal computer (19). The PLC control cabinet (3) is provided with an analog input terminal (4), a frequency converter (12), an analog input module (13), a communication module (14) and a CPU module (15), wherein the analog input terminal (4) is connected with the intelligent sensing equipment through a cable, the frequency converter (12) is connected with a ventilation motor (2) and can automatically acquire operation parameters of the motor, and then the frequency converter is communicated with the industrial personal computer (19) of an upper-layer monitoring terminal through the CPU module, the communication module, the analog input module, the middle-layer optical fiber ring network and the ring network exchanger. The intelligent sensing and remote and unified regulating system is strong in expansibility and improves the unified regulating efficiency and the real-time controlling and optimizing capacity to multiple fans in deep-mining mines.

The invention provides engineering machinery and a safety state determining method, a device and a system thereof. The method includes the following steps: constructing at least one grade of safety control area according to the position of the engineering machinery after support legs are unfolded; calculating an effective mass center of the engineering machinery; judging the position relation between the effective mass center of the engineering machinery and at least one grade of safety control area; and determining safety state of the engineering machinery according to the position relation. The device comprises a safety control area construction module, an effective mass center calculation module, a position relation determining module and a safety state determining module. The system used for determining the safety state of the engineering machinery is further provided. The system comprises the device, a first group of sensors used for detecting stretching quantity of the support legs of the engineering machinery in the horizontal direction and a second group of sensors used for detecting moving parameters of operation parts. The engineering machinery comprises lower equipment, a rotating platform and the operation parts and further comprises the device or the system.

The invention relates to a half bridge inverter for dragging a plurality of motors with asynchronism and realizing the rotor frequency control system, comprising a motor group, a rectifier group, a current limiter group, a chopper group, an isolator group, a current limiting smoothing device, a power capacitor, a half bridge inverter, a speed feedback apparatus, a current feedback apparatus, an excitation transformer, an excitation contactor, a control contactor, a switching contactor, a driver, a microprocessor, a A/D convertor and a signal processer, which adopts an invert control theory, the CPU technology and a three phasezero line circuit, works orderly through the PWM signal control chopper output by the driver, further dragging a plurality of motors for real-time online control, realizes the operation of the crane, the fan or the water pump, characterized by simple circuit, small volume, good performance price ratio, high reliability, energy saving and safe operation and the like.

The invention relates to a fishery dispatching system and method based on an unmanned ship. The system comprises the unmanned ship, a fishing boat, a remote sensing satellite and a ground monitoring center. The unmanned ship is provided with a shipborne controller, a detection sonar, an ocean data collector, a meteorological station, defense equipment, video equipment and shipborne communication equipment. The ground monitoring center comprises an industrial personal computer, a data server and center communication equipment. The fishing boat is provided with fishing boat communication equipment and a fishery information application terminal. The method includes the steps that forecast fishery information is obtained in a prediction model according to remote sensing satellite information and historical fishery information, and parameters of the prediction model are corrected in real time according to information fed back by the detection sonar, the ocean data collector and the meteorological station; after a fishing plan is made according to the detected fishery information and the forecast fishery information, dispatching information and instructions are sent to the fishing boat and the unmanned ship. The unmanned ship has the advantages of automatic sailing, continuous detection and armed patrolling, rich and comprehensive monitoring data is provided, and fishing efficiency is greatly guaranteed.

The invention belongs to the technical field of image target detection, and particularly relates to a Faster R-CNN-based bridge crack instance segmentation method, which comprises the steps of 1, constructing a bridge crack data set; 2, marking a training sample; 3, building a bridge crack instance segmentation model of the improved Faster R-CNN; 4, training the instance segmentation model built in the step 3; 5, testing the instance segmentation model trained in the step 4; 6, performing actual detection. Compared with the prior art, the invention is higher in robustness, accurate bridge crack classification and positioning results can be obtained, and a high-quality bridge crack segmentation mask can be generated and used for evaluating the damage degree of a bridge and making a corresponding maintenance scheme; in addition, the method can achieve the accurate detection of a plurality of cracks in the image, and can improve the detection efficiency and obtain a complete crack form incombination with the image splicing technology.

The invention relates to a brake and to a method for controlling the brake. The brake comprises a base part, a braking piece movably supported on the base part, which braking piece is configured to be moved between a braking position and a releasing position, a spring, with the spring force of which the braking piece can be dropped into a braking position, a support member for limiting the initial position of the drop-out movement of the braking piece and also a controllable actuator, which is mechanically connected to the aforementioned support member and configured to displace the initial position of the drop-out movement of the braking piece with respect to the braking position.

The invention discloses a transmission line inspection robot based on a UAV (unmanned aerial vehicle) platform. The transmission line inspection robot comprises a four-rotor UAV body. The middle of the four-rotor UAV body has a vertical through passage, a carrying board is suspended at the bottom of the four-rotor UAV body through multiple support rods, and the carrying board is provided with a power line walking mechanism. The power line walking mechanism comprises a vertical electric telescopic rod disposed on the carrying board, an upper end of the vertical electric telescopic rod extends out of the passage, the upper end of the vertical electric telescopic rod is provided with a U-shaped driving wheel frame with an upward opening, a driving roller is arranged in the U-shaped driving wheel frame, and the driving roller is driven by a stepping motor. According to the invention, for a long-distance power transmission cable, the inspection robot can be hooked on the power transmissioncable by using the specific power transmission line walking mechanism and the flight inspection can be carried out along the power transmission cable, the time, range and efficiency of the UAV inspection are greatly improved.

A process for dewatering the coal gangue by the discharged hot fume of predecomposing kiln includes such steps as introducing said hot fume to preheating-dewatering pipe, introducing cold air for cooling it to proper temp, adding coal gangue powder, thermally converting the kaolin in coal gangue powder to metakaolin, stage-one cyclone separation for separating dewatered coal gangue powder from fume, cooling the powder, stage-two cyclone separation to obtain product, introducing the fume to moistening tower, moistening, electric dusting, and exhausting the air.

The invention discloses a drilling and grouting combined device for grouting reinforcement of a water-rich sand stratum and a construction technique. The drilling and grouting combined device for grouting reinforcement of the water-rich sand stratum comprises a grouting pipe body. The grouting pipe body is formed by sequentially connecting a plurality of grouting pipes. The outer side of the pipe wall of each grouting pipe is sleeved with an expandable grout container. A plurality of grout outlets are formed in the portions, matched with the grout containers, of the pipe walls of the grouting pipes. Grout enters the grout containers from the grout outlets of the grouting pipes to make the grout containers expand, and thus the grout containers and the sand stratum around the grout containers are compacted. Integrated operation of drilling and grouting reinforcement in the sand stratum can be achieved through the drilling and grouting combined device. According to the drilling and grouting combined device for grouting reinforcement of the water-rich sand stratum and the construction technique, since the grout containers can contain the grout and can expand, the splitting effect of grout on the sand stratum and linear extension of grout veins during grouting in the prior art are eliminated; and the purpose of reserving the grout around drilled holes is achieved, and the effect of compacting the loose sand stratum around the drilled holes is achieved through expansion of the grout containers.

The invention relates to a damping vibration-isolating compound track bed for a metro and a construction method thereof. The track bed comprises concrete layers and EPS (Expanded Poly Styrol) layers which are arranged at intervals, wherein the quantity of the concrete layers is three or four; the quantity of the EPS layers is two or three; the top layer and the bottom layer are both concrete layers; the EPS layers and the poured concrete layers are fixed by small steel chisels; the concrete layers meet the C35 standard; a demand on the density of the EPS layers is 12-15kg/m<3>; and a grain size of EPS grains is 1-2mm. The damping vibration-isolating compound track bed meets the demands on strength and long-term stability, has certain elasticity, has an obvious damping vibration-isolating function and has the energy attenuation above 50-60dB.

The invention relates to a cable ampacity analysis system based on a linear temperature-sensitive technology and a calculation method for cable ampacity. The cable ampacity analysis system comprises a server, as well as a distribution type linear temperature-sensitive system and a cable load detector, which are connected with the server, wherein the distribution type linear temperature-sensitive system is formed by a temperature-sensitive optical cable laid on a cable to be detected, a wavelength-adjustable laser and a light intensity detector, and the wavelength-adjustable laser and the light intensity detector are connected with the temperature-sensitive optical cable. According to the invention, via adding a dynamic time variable, correspondence relationship among cable electric flux, surface temperature of a cable outer protective sleeve, cable environmental temperature and cable heat radiation during the operation of the cable is established, and the temperature of a conductor of the cable is calculated, as a result, the analysis system and the calculation method provide a decision basis for ensuring safe operation of cables in cities and reasonably deploying power transmission capacity, supply a scientific basis to scientific load dispatch, and have import significance.