32results about How to "Ensure driving safety performance" patented technology

The invention discloses a composite board which comprises two skin layers, wherein an intermediate layer is formed between the two skin layers and an inner stiffening beam is arranged between the two skin layers, a core material is filled in the intermediate layer, an outer stiffening beam is arranged between the core material and at least one skin layer, and a polydicyclopentadiene layer is arranged outside the at least one skin layer. The invention also discloses a preparation method of the composite board. The invention further discloses a dumper compartment comprising the composite board. The dumper compartment has the characteristics of strong bearing capacity, remarkable weight reducing effect, oil consumption saving, carbon dioxide emission reducing, long service life and the like.

The invention discloses an unmanned obstacle avoidance path planning method and system, and belongs to the technical field of artificial intelligence unmanned driving. The system comprises a driving vehicle map server and a path planning platform; in the driving process of a driving vehicle, obstacles in front of a lane are detected in real time through detection equipment, detected obstacle information is transmitted to the map server through communication layer equipment, obstacle avoidance notification information is sent to the communication layer equipment, and the communication layer equipment sends a path planning request to the path planning platform; the path planning platform responds to path planning request information to obtain obstacle map data and lane map data, judges whether the vehicle can avoid an obstacle or not, and calculates vehicle steering, an obstacle avoidance end point and an obstacle avoidance passing point; and a reference path is calculated and determined, local adjustment is performed on the reference path to obtain an adjusted obstacle avoidance path, and then safety detection is performed on the obstacle avoidance path to determine a final obstacle avoidance path. The system can improve the path planning efficiency, and guarantees the vehicle driving safety.

The invention discloses an intelligent monitoring system for a vehicle gas cylinder for a liquefied natural gas vehicle. The intelligent monitoring system for the vehicle gas cylinder for the liquefied natural gas vehicle comprises a vehicle gas cylinder data acquisition unit, a vehicle gas cylinder data acquisition transmission terminal, a cloud server and a monitoring platform, wherein the vehicle gas cylinder data acquisition unit is used for acquiring relevant data of the vehicle gas cylinder for the liquefied natural gas vehicle and outputting to the vehicle gas cylinder data acquisition transmission terminal; the vehicle gas cylinder data acquisition transmission terminal, is used for sending the relevant data of the vehicle gas cylinder for the liquefied natural gas vehicle to the cloud server; and the monitoring platform is used for acquiring the data from the cloud server and monitoring the vehicle gas cylinder for the liquefied natural gas vehicle. The intelligent monitoring system for the vehicle gas cylinder for the liquefied natural gas vehicle provided by the invention can be used for effectively monitoring full-state information in the use process of the vehicle gas cylinder for the liquefied natural gas vehicle, and is safe, reliable, convenient to apply, accurate in monitoring, and capable of ensuring the safety in using and driving.

The invention discloses an unmanned mine car safety monitoring method and system, and belongs to the technical field of unmanned driving. The method comprises the steps that according to driving information of a vehicle and an expected track, a set to-be-monitored item is detected in real time, the current detection result of the to-be-monitored item is obtained, and the set to-be-monitored item comprises deviation between the position of the vehicle and the expected track, reasonability of the expected track, longitudinal collision prevention, transverse collision prevention and speed; and early warning is performed on the driving safety of the unmanned mine car according to the current detection result of the to-be-monitored item. The safety risk level of the environment where the unmanned mine car is located can be comprehensively evaluated, and driving and operation safety of the unmanned mine car is ensured.

The invention relates to special vehicles, in particular to a trailer provided with support devices. The trailer comprises a chassis truck provided with a frame and side wall assemblies, wherein the frame is provided with the support devices, each support device comprises an inner sleeve and a landing leg, and a fixing block is arranged on the landing leg; a T-shaped block is mounted on an end surface of each inner sleeve, a hole in the T-shaped block is nested in a hole in the fixing block; first limiting pins and second limiting pins are mounted on the frame; a third limiting pin is mounted on each fixing block; a round hole which allows the first limiting pin to be nested is formed in one side of each inner sleeve, and a long-strip-shaped hole allowing the second limiting pin to be nested is formed in the other side of each inner sleeve. Compared with the prior art, the trailer is maneuverable, small and flexible, the obstacle passing capability and the bearing capability of the trailer are met, the stability and the shock absorption of equipment on the trailer during running can be guaranteed, the tires can be protected from deformation by external force during long-time parking of the trailer, and the service life of the tires is prolonged.

The invention discloses a method and a device for generating a code sequence table of a railway line, relates to the technical field of railway signal track circuit coding, and mainly aims to improvethe generation efficiency and accuracy of the code sequence table. According to the main technical scheme, the method comprises the steps of obtaining an engineering data table set of a target railwayline; extracting stations in a target railway line and sections managed by the stations according to the engineering data table set; determining a section sequence corresponding to the line to whichthe target station belongs according to data in the engineering data table set; and generating a code sequence table of the line to which the target station belongs according to the coding rule corresponding to the line and the section sequence as corresponding section codes.

The invention provides a line obstacle identification method based on three-dimensional imaging, comprising the following steps: periodically adjusting a scanning tilt angle of a planar laser radar through an angle adjustment mechanism to obtain N corresponding static two-dimensional scanning plane graphs; calculating an original height Sh corresponding to each square table cell according to the static two-dimensional scanning plane graphs, and obtaining an earth surface static three-dimensional point cloud graph; calculating a current height Dh corresponding to each square table cell according to a current two-dimensional scanning plane graph, and obtaining a current earth surface dynamic three-dimensional point cloud graph; comparing the earth surface static three-dimensional point cloudgraph with the current earth surface dynamic three-dimensional point cloud graph to obtain obstacle feature information in the current scanning period; comparing the obstacle feature information in the current scanning period with the obstacle feature information in the last scanning period to perform obstacle identification; and prompting a worker to check the railway line of the road section intime to ensure the railway running safety and personal safety and to reduce human casualty accidents inside and outside of the railway.

The invention belongs to the field of rail transit platform door edge safety monitoring and discloses a rail transit platform door and vehicle gap monitoring system based on image recognition. The system comprises visual monitoring devices, a vehicle control room alarm terminal device, a platform head end operation terminal device and a central server device which are connected. The visual monitoring devices are distributed on the back top sealing cover plate of each platform door unit and the track side of a platform end door, and the visual monitoring devices are used for collecting monitoring pictures and uploading the collected pictures to a device database of a central server; and the central server is used for receiving the monitoring picture data, extracting image data within 0.5-2sbefore the monitoring picture data is extracted to serve as an obstacle comparison judgment reference image source, and storing the reference image source into a reference image storage area. After atrain door and the platform door are closed, whether foreign matter exists in the gap between the train door and the platform door or not is recognized in a video detection mode, and the safety of riding passengers and driving is guaranteed.

The invention discloses a statistical analysis method for cloud computing vehicle faults. The method comprises the following steps of: S1, collecting vehicle driving parameters and establishing a statistical model; S2, collecting vehicle maintenance records, obtaining parameters corresponding to fault types and establishing a fault model; S3, collecting real-time operation data of the vehicle andestablishing dynamic data; S4, establishing a dynamic model by an analysis module through the dynamic data, and transmitting the dynamic model to a comparison module; S5, receiving the dynamic model by the comparison module, comparing the dynamic model with the statistical model and fault model, and analyzing change data to generate alarm information; and S6, transmitting the alarm information toan alarm device by a cloud computing center. The statistical analysis method for cloud computing vehicle faults is capable of decreasing the fault rate and loss and ensuring the driving and transportation safety through collecting the normal driving data and fault data and carrying out analysis and processing by the cloud computing center, and is relatively wide in data comparison surface and highin adaptability.

The invention discloses mutual-inserted rail-side signal equipment floor hardeners. Each mutual-inserted rail-side signal equipment floor hardener comprises an upper plane frame, an enclosure table, ahardened surface panel and grid plates; the upper plane frame is rectangular; the hardened surface panel is fixedly mounted on the upper plane frame through self-tapping screws or rivets; the enclosure table is a rectangular parallelepiped frame and is fixedly installed on the lower part of the upper plane frame; and the grid plates are fixed to four side surfaces of the enclosure table. The floor hardeners are simple and convenient to install, easy to disassemble, corrosion-resistant, and long in service life.

The invention discloses a novel energy resource vehicle. The vehicle comprises a shaft, a cylinder liner, a carriage, an engine, a vehicle body, a solar energy auxiliary charging system, a buffer, a side collision prevention device, a control unit, a speed and distance measurement instrument, a signal transmission detection system and a driving cab buffer device, wherein the solar energy auxiliary charging system comprises a solar energy battery board, a solar energy accumulator, a whole vehicle control system and a power battery, the driving cab buffer device is arranged on the bottom of a driving cab, the control unit is used for controlling the closing and starting of the collision prevention buffer device, the signal transmission detection system is used for feeding the test result of the actual speed and the actual distance, which are measured by the speed and distance measurement instrument, back to the control unit, the solar energy battery board and the solar energy accumulator are connected with the whole vehicle controller, the vehicle collision prevention buffer device can provide better buffer performance, the destruction of the vehicle body caused by collision is lightened, and the loss is reduced.

An automotive overload-reminding system mainly comprises a seat load transducer, a controller and a prompting-alarming circuit, wherein the seat load transducer is composed of a plurality of gravity sensors which are disposed at the bottom of seats and connected with the controller; the controller is a micro-controller system composed of a single chip microcomputer, wherein the input port of the controller is connected with the seat load transducer, and the output port of the controller is connected with the prompting-alarming circuit; and the prompting-alarming circuit is the output component of the whole system, and composed of a prompting sounder circuit and a prompting signal lamp. The automotive overload-reminding system provided by the invention realizes real-time detection and alarming for automotive overload by using a simple and effective method, thus providing a guarantee for the reasonable use and safe running of an automobile.

The invention belongs to the technical field of road engineering, and discloses a micro asphalt macadam crack dissipation layer based on vibrating compaction and a compaction method thereof. The micro asphalt macadam crack dissipation layer based on vibrating compaction is characterized by comprising the following raw materials: limestone as mineral aggregate of the micro asphalt macadam crack dissipation layer, and asphalt as a binder for the micro asphalt macadam crack dissipation layer, wherein the asphalt-aggregate ratio is 1.4-2.6%; the mineral aggregate gradation of the micro asphalt macadam crack dissipation layer is as follows: the aggregate of which the particle size is smaller than 26.5mm accounts for 100% of total mass of the graded aggregate; the aggregate of which the particle size is smaller than 16mm accounts for 75-95% of total mass of the graded aggregate; the aggregate of which the particle size is smaller than 9.5mm accounts for 48-64% of total mass of the graded aggregate; the aggregate of which the particle size is smaller than 4.75mm accounts for 30-38% of total mass of the graded aggregate; the aggregate of which the particle size is smaller than 2.36mm accounts for 14-24% of total mass of the graded aggregate; the aggregate of which the particle size is smaller than 0.6mm accounts for 5-15% of total mass of the graded aggregate; and the aggregate of which the particle size is smaller than 0.075mm accounts for 0-5% of total mass of the graded aggregate.

The invention discloses an optimal design method of a variable stiffness spiral spring. The optimal design method comprises the following steps: estimating a wire diameter initial value, a pitch initial value, an inner diameter initial value and a length initial value of the spiral spring; inputting the initial wire diameter value, the initial pitch value, the initial inner diameter value and theinitial length value of the spiral spring into a simulation platform, and establishing a finite element model of the spiral spring; performing structural stress analysis on the spiral spring finite element model in the simulation platform to determine the stress level and the dangerous point position; optimizing a wire diameter parameter, a pitch parameter, an inner diameter parameter and a lengthparameter of the spiral spring finite element model; and performing a force application simulation test on the spiral spring finite element model, and determining a wire diameter optimization value,a pitch optimization value, an inner diameter optimization value and a length optimization value of the spiral spring finite element model. The designed spiral spring has the advantages of the variable rigidity, the large load, the large stroke, no maintenance and the high reliability, and the compression and extension stroke is increased on the basis of ensuring the bearing capacity.

The invention relates to a polyurethane / silicate composite material for rapidly repairing concrete pavement pit and a preparation method thereof. The composite material consists of a component A, a component B and a component C. The preparation method comprises the steps that the component A and the component B are rapidly and uniformly stirred according to the mass ratio of 1 to 1, and the component C is added and further uniformly stirred to obtain the polyurethane / silicate composite material. The uniformly stirred materials are timely poured and paved into the concrete pavement pit and slicked, and the surface is paved with fine sand to solidify and have transport service after 120min. The composite material has favorable cohesiveness with the original pavement fracture surface, and the solidified product has favorable rigidity, toughness, abrasive resistance, pressing resistance, fatigue resistance, skid resistance and energy absorption and noise reduction, so that the driving safety of vehicles is ensured, the purpose of rapidly repairing the pavement is achieved, and the time of blocking off traffic is reduced. The polyurethane / silicate composite material can be widely applied to rapid repairing of concrete buildings in the fields of municipal administration pavement, expressway and concrete playground and airports, and can be applied to filling and rapid maintenance of bridge flexible gaps.

The invention relates to the technical field of friction plates, in particular to a friction plate for a motorcycle brake. The friction plate comprises two semicircular friction pieces respectively installed on two sides of an axle, an inner ring of each semicircular friction piece is provided with multiple installing holes, and the two semicircular friction pieces are connected through multiple springs fastened in the installing holes. The friction plate for the motorcycle brake enables the braking effect of a motorcycle to be good. In addition, once the friction pieces are damaged, the friction pieces can be directly replaced, the cost is low.

An overload reminding device for an armor cash carrier mainly comprises a chassis load sensing device, a microprocessor and a prompting and warning device. The chassis load sensing device is composed of multiple gravity sensors at the bottom of a seat and are connected with the microprocessor; the microprocessor is a microprocessor system composed of a single chip microcomputer, the input port of the microprocessor is connected with the chassis load sensing device, and the output port of the microprocessor is connected with the prompting and warning device; the prompting and warning device is an output part of the whole system and is composed of a prompting loudspeaker circuit and a prompting signal lamp. By means of the overload reminding device for the armor cash carrier, overload real-time detection and warning of the armor cash carrier are achieved through a simple and effective method, and guarantees are provided for reasonable use and safe driving of vehicles.

The invention discloses a composite material rail side signal equipment ground hardening device. The hardening device comprises an upper plane and a side slope surrounding table, wherein the upper plane is arranged on the side slope surrounding table, and the side slope surrounding table is fixed on a side slope; and when rail side signal equipment is installed on the side slope, the side slope surrounding table needs to be installed, when the rail side signal equipment is installed on a flat surface, the side slope surrounding table does not need to be installed, and the upper plane can be directly installed. According to the ground hardening device and an installation method thereof, the ground hardening device is less in installation personnel, high in efficiency, low in comprehensive cost, resistant to acid and alkali corrosion, good in insulation performance, strong in ultraviolet resistance, capable of being repeatedly disassembled and used, and free of maintenance for a long time.

The invention discloses an inflatable maintenance-free tire, and belongs to the technical field of tires. The inflatable maintenance-free tire comprises a tire body, a closed inner cavity is formed inthe tire body, and at least one inflating valve used for inflating or deflating the inner cavity is arranged on the tire body. The tire is novel in structure and high in practicability. 0.5-1.5 kg ofair pressure is inflated into the inner cavity through the inflating valve and is stored in a sealed mode, the comfortableness is improved, meanwhile, deformation of the tire in the driving process is compensated through the air pressure, wrapping and attaching between a crown of the tire and the ground are effectively improved, the ground contact surface is reasonable and balanced, abrasion is uniform, the service life of the tire is guaranteed, and the driving safety of the tire is guaranteed.

The invention discloses a composite board which comprises two skin layers, wherein an intermediate layer is formed between the two skin layers and an inner stiffening beam is arranged between the two skin layers, a core material is filled in the intermediate layer, an outer stiffening beam is arranged between the core material and at least one skin layer, and a polydicyclopentadiene layer is arranged outside the at least one skin layer. The invention also discloses a preparation method of the composite board. The invention further discloses a dumper compartment comprising the composite board. The dumper compartment has the characteristics of strong bearing capacity, remarkable weight reducing effect, oil consumption saving, carbon dioxide emission reducing, long service life and the like.

The invention relates to an emergency braking smart booster and an emergency braking method, and a driver performs a model analysis according to the pedal force borne by a pedal, and when a preset condition is met, an output power of the smart booster is improved so as to generate a high-power braking force for the emergency braking of a vehicle. According to a desired embodiment, the emergency braking method refers to a method that the smart booster generates a braking power. The method comprises an analyzing phase, in which a mode analysis is performed according to the pedal force borne by the pedal, a determination phase, in which whether the analyzed mode meets the preset condition is determined, and a control phase, in which the output power of the smart booster is improved when the preset condition is determined to be met in the determination phase. Even the old, the weak or female drivers do not have enough strength to tread on the braking pedal, the braking performance of the vehicle can be guaranteed through the emergency braking smart booster and the emergency braking method.

The invention discloses a safety monitoring method and system for an unmanned mining vehicle, which belongs to the technical field of unmanned driving, including performing real-time detection on the set items to be monitored according to the driving information of the vehicle and the expected track, and obtaining the items to be monitored The current detection results of the set items to be monitored include the deviation between the vehicle position and the expected trajectory, the rationality of the expected trajectory, longitudinal anti-collision, lateral anti-collision, and speed; according to the current detection results of the items to be monitored, the unmanned mine Early warning for vehicle driving safety. The invention can comprehensively evaluate the safety risk level of the environment where the unmanned mining vehicle is located, and ensure the driving and operation safety of the unmanned mining vehicle.

The invention relates to an emergency braking smart booster and an emergency braking method, and a driver performs a model analysis according to the pedal force borne by a pedal, and when a preset condition is met, an output power of the smart booster is improved so as to generate a high-power braking force for the emergency braking of a vehicle. According to a desired embodiment, the emergency braking method refers to a method that the smart booster generates a braking power. The method comprises an analyzing phase, in which a mode analysis is performed according to the pedal force borne by the pedal, a determination phase, in which whether the analyzed mode meets the preset condition is determined, and a control phase, in which the output power of the smart booster is improved when the preset condition is determined to be met in the determination phase. Even the old, the weak or female drivers do not have enough strength to tread on the braking pedal, the braking performance of the vehicle can be guaranteed through the emergency braking smart booster and the emergency braking method.

The invention relates to an ultrasonic phased array automatic flaw detector for railway vehicle axles. A die set cross beam is arranged above a lathe bed main body; the die set cross beam is provided with two follow-up devices which can transversely move and are oppositely arranged; the follow-up devices are respectively located at two ends of the inner side of a to-be-detected axle; a phased array is arranged below each follow-up device; two sides of the lathe bed main body are respectively provided with an alignment device capable of vertically moving; an A-type probe is arranged at one end of each alignment device, and can transversely move through the corresponding alignment device; the middle part of the lathe bed main body is provided with an axle rotating mechanism; the lathe bed main body is also provided with a feeding and blanking mechanism, and the feeding and blanking mechanism is used for axle feeding and blanking; the A-type probes and the phased array probes are connected with the phased array ultrasonic flaw detector. According to the ultrasonic phased array automatic flaw detector for the railway vehicle axles, disclosed by the invention, three-dimensional display can be performed on flaws; meanwhile, by adopting cross scanning of the phased array flaw detection and A-type probe flaw detection, the detection efficiency and the detection accuracy are high, the production cost is low, and the application prospect is wide.

The embodiment of the invention provides a reinforcing structure of a railway turnout zone and a frame bridge structure penetrating through an existing railway. The reinforcing structure of the railway turnout zone is used for underneath passing through a frame bridge of an existing railway, and the reinforcing structure comprises a plurality of pile foundations, a plurality of cross beams, a plurality of longitudinal beams and overhead supporting beams. The multiple pile foundations are sequentially arranged along the two sides of the railway. The multiple cross beams extend along the crossing railway and are used for bearing the rail bottom or the sleeper bottom of an existing sleeper. The two ends of each cross beam are supported on a guard pile foundation, and the cross beams are disconnected at the area where a pull rod of a railroad switch is arranged. The longitudinal beams extend in the railway direction, are arranged above the cross beams and are connected with the cross beams, and the longitudinal beams are disconnected in the switch area. The overhead supporting beams extend in the railway direction and are arranged below the railroad switch at intervals, and the two ends of each overhead supporting beam are connected with the cross beams on the two sides of the railroad switch respectively. By the adoption of the scheme, the strength and rigidity of the turnout zone in construction of the frame bridge can be guaranteed, and driving safety is guaranteed.

The invention relates to a control method of a wheel hub motor driven car based on a self-regulating particle model. The self-regulating particle model is established according to vehicle dynamics. The control method is suitable for linear and nonlinear region of the vehicles. In particularly, the control method provides a moderate vehicle motion state reference value under the road adhesion limit to ensure the handling stability and the driving safety of the vehicles. The establishment of the self-regulating particle model comprises the following steps: 1. According to the neutral veering feature of the vehicle dynamics, the variation of the vehicles ideal reference lateral acceleration is received after the analysis of a two-degree-of-freedom linear reference model. 2. When the vehicles have both a longitudinal acceleration and the lateral acceleration requirements, the corresponding mapping function MAP relationship is established as an ideal resultant acceleration from a reference resultant acceleration by the construction in a G-G acceleration friction circle. 3. Through the transition of coordinate systems between the vehicles movement locus and the vehicles centroid, the vehicles ideal reference motion state value is required. The control method of the wheel hub motor driven car based on the self-regulating particle model ensures the handling stability and the active safety of the vehicles under the road adhesion limit and also guarantees the controllability of the vehicles to the drivers.

The invention discloses a culvert and roadbed culvert transition structure. The culvert comprises culvert walls, lugs and a bearing platform for supporting line loads, wherein the culvert walls are positioned below the bearing platform, and are correspondingly arranged at the two ends of the bearing platform; the culvert walls and the bearing platform define a duct, and the lugs are positioned outside the duct, the lugs and the bearing platform are combined to form steps, and the top surface of the bearing platform is higher than that of the lugs. According to the technical scheme of the culvert and the roadbed culvert transition structure, it is guaranteed that the transition structure and the culvert are stressed together, and the settling volume of the transition structure and the culvert is basically consistent, so that the phenomenon that the settlement between the culvert and the transition structure is not uniform is reduced, and the driving safety and comfort are ensured.

The invention provides a rapid construction method for an over-wet soil roadbed. According to the natural water content, the compaction control water content, the seepage coefficient and the air inflow value of over-wet soil filling, the wind speed and the wind temperature are determined. Through rapid dehumidification equipment, the local environment of over-wet soil of a loose laid layer is effectively improved, the air temperature and the relative humidity of the local environment exceed the air inflow value of roadbed filling, meanwhile, the forward and reverse rotation stirring effect of an overturning and stirring wheel is adopted for assistance, and therefore the water content of the over-wet soil filling is rapidly reduced to the compaction control water content of over-wet soil. By the adoption of the method, the roadbed compaction quality is stable and reliable, the roadbed disease happening time is greatly delayed, and the use efficiency of a road surface is effectively improved; the technical problem that it is difficult to ted the over-wet soil within the set time to reach the compaction control water content under the rainy climate condition in South China due to the fact that the over-wet soil is high in water content is solved, the use rate of the over-wet soil is greatly increased, the construction efficiency of the over-wet soil is greatly improved, a construction period is shortened, and the manufacturing cost is saved; and the technological cost is low, the roadbed quality is good, and economic benefits are remarkable.

The invention discloses a smart monitoring system for vehicle gas cylinders of liquefied natural gas vehicles, which includes a vehicle gas cylinder data collection sheet, a vehicle gas cylinder data collection and transmission terminal, a cloud server, and a monitoring platform; the vehicle gas cylinder data collection unit uses To collect the relevant data of LNG vehicle gas cylinders and output them to the vehicle gas cylinder data collection and transmission terminal; the vehicle gas cylinder data collection and transmission terminal is used to send the relevant data of the LNG vehicle gas cylinders to The cloud server; the monitoring platform is used to obtain data from the cloud server to monitor the gas cylinders of LNG vehicles. The invention can effectively monitor the whole state information of the gas cylinder used in the liquefied natural gas vehicle during use, is safe and reliable, convenient in application, accurate in monitoring, and ensures the safety of use and driving.