190results about How to "Avoid parking" patented technology

The invention provides an ice shape contour measuring method based on three-dimensional ultrasonic imaging technology. The method can be used for an iced wind tunnel and in the airplane model icing experiment process, and is used for realizing 3D ice shape on-line measurement in the model icing growth process. The method is characterized by utilizing an ultrasonic probe to emit an ultrasonic signal, and meanwhile, receiving an echo signal and processing the echo signal to obtain a two-dimensional ultrasonic image; while collecting the echo signal and obtaining the two-dimensional ultrasonic image information, utilizing an electromagnetic positioning sensor to collect spatial position information of an icing model corresponding to the ultrasonic probe; and then, through coordinate transformation between an ultrasonic plane coordinate system and a world coordinate system, obtaining three-dimensional coordinate of a model to be measured, and realizing three-dimensional reconstruction of the wind tunnel model 3D ice shape. In order to observe the 3D ice shape in the model icing growth process, the invention adopts the three-dimensional ultrasonic imaging technology to obtain a three-dimensional ultrasonic image of the model ice shape. The invention provides a non-contact ice shape contour measuring method; and compared with several conventional iced wind tunnel measuring methods, the method can improve experiment efficiency and realize online measurement.

A traffic signal guiding device relates to a traffic control system. It consists of some mounting posts spacially arranged in a line in a distance near the crossroad, and some passing signal lights installed the said posts orderly to transmit passing signals and speed changing signals periodically. This invention raises efficience of road in use, increases traffic capancity and vehicle speed at the crossroad, reduces energy consumption and exhaust pollution of vehicle.

The invention discloses a green wave setting method for realizing streetcar interstation green-wave passage. The method comprises the following steps: collecting data of intersections along the line of streetcars and streetcar running data; determining an intersection timing plan according to the data of the intersections along the line of the streetcars and traffic flow of each intersection; setting up direction and car departing time, and determining time when the streetcars in up direction reach each intersection; determining streetcar pass phase position green light midpoint time and the car departing time of the streetcars in down direction; determining time of the streetcars in down direction reaching each intersection; and calculating the difference between the time of the streetcars in down direction reaching each intersection and the green light midpoint time, and determining time difference [delta]x of each intersection; and according to the time difference, adjusting the timing scheme of the intersection. The method prevents unnecessary parking of the streetcars at the intersections, thereby improving running efficiency of the lines; and with electric car running induction technology being combined, the streetcars are allowed to run according to set parameters, and punctuality rate of the streetcar is improved.

The embodiments of the invention relate to the communication field and disclose a sharing bicycle and a docking method thereof, wherein the sharing bicycle comprises a front wheel, a back wheel, a handle and a bicycle body. In the invention, the docking method of the sharing bicycle comprises: obtaining the state information of the sharing bicycle wherein the state information of the sharing bicycle can be any of the following or the combination of any of the following: the direction of the bicycle body, the angle of the bicycle body, and the heading direction of the front wheel; and when the obtained state information of the sharing bicycle exceeds a preset scope, triggering an alarming device. The invention further provides a sharing bicycle. Compared with the prior art, the sharing bicycle and the docking method thereof are able to generate alarming information when the alarming device is triggered so as to realize standard docking of the sharing bicycle and to avoid the random docking of the sharing bicycle. In this way, the docking space for the sharing bicycle can be reduced and the limited docking area can allow more sharing bicycles to be docked in.

The present invention relates to the technology of cleaning the inner wall of boiler with chemical solution. The chemical solution consists of potassium nitrate, copper nitrate, magnesium nitrate, aluminum nitrate and boric acid; and it may be jetted via the observation hole to the flame area of operating boiler or sprayed to the surface of formed coke of idle boiler.

The invention discloses an electric motor train set neutral-section passing control method. A main control vehicle receives monitoring information from a monitoring system in real time through a microcomputer system, transmits the monitoring information to a slave control vehicle and performs neutral-section passing control by combining road condition information and operation information, whereinthe monitoring information comprises neutral-section passing information. According to the technical scheme of the invention, as the main control vehicle receives the monitoring information from themonitoring system in real time through the microcomputer system, transmits the monitoring information to the slave control vehicle and performs neutral-section passing control by combining the road condition information and the operation information, an accurate distance between a motor train set and a forecasting and forced signal can be accurately obtained; and a situation that the motor train set may park in a neutral section when the motor train set is heavy-loaded, the train set is longer or the gradient of the neutral section is larger is avoided.

The invention belongs to a coal gasification device and process capable of combusting organic effluent sewage. The coal gasification device comprises an organic effluent sewage storage tank, an oxygen storage tank, a dry pulverized coal storage tank and a water storage tank, wherein the dry pulverized coal storage tank and the water storage tank are respectively connected with the inlet of a coal water slurry storage tank, outlets of the organic effluent sewage storage tank, the oxygen storage tank, the dry pulverized coal storage tank and the coal water slurry storage tank are respectively connected with a burner part at the top of a combustor; the burner part is connected with the interior of a membrane type water cooling film, the oxygen storage tank is connected with an oxygen and gas increasing nozzle arranged at the middle of the combustor through a pipeline, the water storage tank is connected with the inlet of the membrane type water cooling wall, a connecting cylinder is arranged at the bottom of the combustor, penetrates through the top of a water cooler and is arranged at the inner-upper part of the water cooler, a synthetic gas outlet is formed in the upper part of one side of the water cooler, a deslagging hole is formed in the lower part of the water cooler, and a multilayer baffling boosting cylinder is arranged at the outer part of the connecting cylinder. The coal gasification device has the advantages of strong coal type adaptability, high coal gasification efficiency, and cleanness and good quality of synthetic gas, and is capable of treating the organic effluent sewage.

The invention relates to a motor train unit warning device based on the voting mechanism. A basic function module of the motor train unit warning device comprises a power supply module, intelligent relay modules, DI detecting modules and shaft speed detecting modules, wherein the power supply module provides electricity for the intelligent relay modules, the DI detecting modules and the shaft speed detecting modules, the number of the power supply module is one, the number of the intelligent relay modules is two, the number of the DI detecting modules is two, the number of the shaft speed detecting modules is three, and mutual communication is achieved among all the modules through a CAN bus. Due to the fact that the motor train unit warning device is based on the voting mechanism, the redundancy detecting mechanism and the fault-tolerant mechanism, the warning device can operate normally under the condition that the modules of the warning device break down, and the phenomenon that a train is stopped due to the fact that the modules of the warning device break down is prevented.

The invention discloses a target vehicle speed prediction method based on dynamic planning. A vehicle speed data prediction model in a control and analysis module builds a target vehicle speed model based on oil consumption of a vehicle, vehicle speed following, a control variable and a relative distance between vehicles; a data analysis module in the control and analysis module adopts a quick model prediction method to acquire the optimal target vehicle speed sequence for the target vehicle speed model; and an instruction issuing module in the control and analysis module feeds back instruction information for the optimal target vehicle speed sequence acquired by the data analysis module to a driver of each vehicle in a wireless transmission mode. Compared with the prior art, the target vehicle speed prediction method based on dynamic planning has the following advantages that the oil consumption of the vehicle can be effectively reduced; and with the total oil consumption of multiple vehicles in a traffic system to be minimal as a target, from a macro point of view, an idea is provided for solving the problem of total minimal energy consumption of multiple vehicles.

The invention discloses a process method for production of alpha-olefin by oligomerization of selective ethylene; a high-pressure reaction kettle is externally connected with a material circulation pipeline; the material circulation pipeline is provided with a heat exchanger and a gas-liquid separator; in the synthesis process of alpha-olefin, ethylene is inputted to the high-pressure reaction kettle, alpha-olefin synthesized in the presence of a catalyst and a reaction solvent is dissolved in a solvent in the kettle, and a reaction liquid containing a product flows out from the bottom of thekettle, then has heat exchanged by the heat exchanger, enters the gas-liquid separator and is subjected to gas-liquid separation; gas discharged from the top of the gas-liquid separator flows back toa gas mixing tank, and a liquid is sent back to the high-pressure reaction kettle. The invention also relates to a system implementing the process. Heat generated from the reaction is removed in time,the reaction temperature is steadily controlled, and the activity and the selectivity of the catalyst are improved.

The invention discloses an unlicensed vehicle management device for unattended cloud parking and a control method. The device includes a cloud parking platform, a management control machine, a first license plate recognition vehicle entry and exit control machine, a second license plate recognition vehicle entry and exit control machine, a first guard robot and a second guard robot. With the device of the invention, the drivers of unlicensed vehicles can easily complete parking access, payment and other operations in a self-help manner, the problem on access and charge management of unlicensedvehicles is solved completely, and there is no need to add manual intervention equipment at the entrance and exit. The device has strong adaptability and practicability.

The invention discloses a parking place lock comprising a base and vehicle blocking rods symmetrically arranged on the two sides of the base. Each vehicle blocking rod is provided with a blocking partconnected with the base in a pivoted mode and a connecting part rotatably connected with the blocking part. A first locking assembly is arranged between the two blocking parts; a transmission assembly used for driving the connecting parts to rotate is arranged between the two connecting parts; buffer assemblies are further arranged between the base and the vehicle blocking rods, and the transmission assembly and the buffer assemblies are rotatably connected; and the base is slidably connected with guide rails, and a fixing mechanism is arranged between the base and the guide rails. The parking place lock has the characteristics that impact damage can be prevented, and the parking place lock can be used for parking bicycles and electric bicycles and is convenient to manage, and is suitablefor the technical field of parking place locks.

The invention discloses a target vehicle speed prediction system based on dynamic programming, which comprises a wireless communication module, a data acquisition module, a vehicle speed data prediction module, a data analysis module and an instruction issuing module, wherein the vehicle speed data prediction module carries out weighted sum on oil consumption of a vehicle, vehicle speed following, a control variable and a relative distance between vehicles to build a target vehicle speed model; and the instruction issuing module is used for feeding the optimal target vehicle speed sequence acquired by the data analysis module back to the driver of each vehicle in a wireless transmission mode, and the driver carries out accelerating or braking according to the optimal target vehicle speed sequence. Compared with the prior art, the target vehicle speed prediction system based on dynamic programming has the following advantages that the oil consumption of the vehicle can be effectively reduced; and with the total oil consumption of multiple vehicles in a traffic system to be minimal as a target, from a macro point of view, an idea is provided for solving the problem of total minimal energy consumption of multiple vehicles.

The invention discloses an online dedusting device of a web die-cutting machine. The online dedusting device comprises a machine frame, a conveying device, a paper pressing device and dust blowing device and a dust absorption negative pressure device. The conveying device comprises a conveying roll shaft and a conveying belt with holes and is mainly used for conveying products to be dedusted; the paper pressing device and dust blowing device comprises a first shaft, a second shaft, paper pressing wheel carriers, paper pressing wheels, blowing nozzle carriers, blowing nozzles and a positive pressure air pipeline, the first shaft and the second shaft are transversely installed on the machine frame, the first shaft is arranged in the input direction of the products to be dedusted, the second shaft is arranged in the output direction of the products to be dedusted, the first shaft is symmetrically provided with one row of paper pressing wheel carriers and one row of paper pressing wheels, the second shaft is symmetrically provided with the other row of paper pressing wheel carriers and the other row of paper pressing wheels, the blowing nozzle carriers in a row and the blowing nozzles in a row are correspondingly installed at the positions, adjacent to the corresponding paper pressing wheel carriers and the corresponding paper pressing wheels, of the second shaft, and the blowing nozzles are communicated with the positive pressure air pipeline; the dust absorption negative pressure device comprises a housing, an air suction port and an air suction pipe, one end of the air suction pipe is connected with the air suction port, and the other end of the air suction pipe is connected with an air suction pump. The online dedusting device can guarantee normal work of online quality detection and eliminate false alarms caused by dust.

The invention discloses a method and a device for implementing assistant parking. The method comprises the following steps: (1) acquiring an image of a site where a vehicle is located in real time, and identifying the vehicle position, the type of a parking site and the parking site in the acquired image; (2) determining a display sequence of a plurality of guide frames guiding the vehicle to enter the parting site and a display position of each guide frame according to the type of the parking site and the current parking condition of each parking site; and (3) when one of the parking sites is appointed, displaying multiple guide frames in the image according to the display sequence of the guide frames and the display position of each guide frame of the appointed parking sites, wherein when one guide frame is displayed in the image each time, the next guide frame is displayed while judging that the position of the vehicle enters the guide frame until the position of the vehicle enters the last guide frame. By virtue of the method, a driver can easy know how to park the vehicle to the parking site, so that the operation difficulty during the parking of the vehicle to the parking site is effectively reduced.

The invention discloses a pulverized coal gasification control method and a pulverized coal gasification device, and belongs to the field of pulverized coal gasification. The method and the device are characterized in that each process burner is provided with a gasification agent branch pipeline and a pulverized coal branch pipeline; the gasification agent branch pipeline is composed of an oxygen branch pipeline and a steam branch pipeline; through adjustment of the gasification agent flow quantity of the gasification agent branch pipeline and the pulverized coal flow quantity of the pulverized coal branch pipeline, the ratio of the gasification agent flow quantity to the pulverized coal flow quantity in each process burner is allowed to be in an appropriate range. Compared with the prior art, the pulverized coal gasification control method and the pulverized coal gasification device can make oxygen load of the burners consistent, better protect start-up burners and the process burners, and prevents stopping of a gasification device caused by fluctuation of a pulverized coal quantity pipeline.

The invention provides a monitoring method and system for an electric vehicle charging network, and the method comprises the steps: additionally arranging a ground lock at a parking position of a charging pile, avoiding the illegal parking of a non-charging vehicle, collecting the occupied state of the parking position of the charging pile through the ground lock, and combining with the discrimination of the operation state of the charging pile. The method can improve the discrimination accuracy of the usable state of the charging pile, and effectively avoids a condition that the charging cannot be carried out because the parking position is occupied after a driver drives a vehicle to a charging station. Meanwhile, when the charging duration set by the user is completed or the vehicle is fully charged, corresponding prompt information is sent to the client to remind the user to move the vehicle in time; a time threshold value is set, if the time exceeds the threshold value time, the user still does not move the vehicle, vehicle moving overtime fee deduction timing is started, and a prompt of vehicle moving overtime extra fee deduction is sent to the user client; an effective supervision effect is provided for timely vehicle moving after the user completes the charging order, and the utilization rate of the charging pile is effectively improved.

The invention discloses a landscape-type parking pile and a smart parking management system and method provided with the same. The smart parking management system comprises the landscape-type parkingpile, a parking management server, a terminal application and a user terminal, wherein the parking management server is connected with the landscape-type parking pile, the terminal application and theuser terminal through communication. The landscape-type parking pile comprises a pipe base vertically buried on a parking space side boundary, a lifting column arranged in the pipe base in a liftingway, a driving portion for driving the lifting column to lift and fixedly installed at the bottom of the pipe base, a control panel arranged in the lifting column and electrically connected with the driving portion, and a battery electrically connected with the driving portion and the control panel, wherein the driving end of the driving portion is vertically arranged and fixedly connected with the lifting column. The smart parking management system can achieve unattended vehicle parking and automatic and intelligent management, improves passing efficiency and reduces the error occurrence rate.

The invention provides an urban public traffic system, in particular a primary-secondary vehicle traffic system and primary and secondary vehicles. Viaduct overhead rail bound primary and secondary driveways in the same direction are arranged a major urban traffic route; station sites for passengers to get on or off buses are arranged on the road surface; and the viaduct overhead rail bound primary and secondary driveways in the same direction are connected with the station sites for the passengers to get on or off the buses through the driveways to get on and off bridges. The primary-secondary vehicle traffic system is characterized in that the secondary vehicle and the primary vehicle are provided with two sets of power devices respectively. The outer side of a vehicle door of the primary vehicle is provided with a connecting bridge and a fence of the connecting bridge.

The invention discloses a vehicle management device, a vehicle management server and a vehicle management system. The vehicle management device comprises: at least two first fixing devices and at least two second fixing devices, wherein the first fixing devices and the second fixing devices are sequentially fixed to at least one side of a lane in the extending direction of the lane, and the firstfixing devices are provided with structures allowing vehicles to pass through without barriers; a camera shooting device fixed to the second fixing devices and used for snapshot; laser radar fixed onthe first fixing devices and used for detecting a preset area of a lane and outputting point cloud data; a control device used for identifying the vehicle on the lane according to the point cloud data, and triggering the camera shooting device to acquire an image of the target monitoring area at least once when the vehicle enters the target monitoring area; a communication device which is in communication connection with the control device and is used for being in communication connection with a vehicle management server, wherein the communication device is used for transmitting the images andthe information of the camera shooting device to the vehicle management server. According to the technical scheme, real non-stop toll collection can be achieved.

The invention provides a compressor anti-surge control method and system. A 505/505 E controller and a DCS control system are adopted for controlling the rotating speed of a compressor, a unit starting condition, a compressor safety running mode starting condition and an anti-surge electromagnetic valve automatic control mode starting condition are arranged, and the compressor anti-surge effect isachieved. During trial run and normal production process, along with the production working condition fluctuation, the anti-surge control scheme and the compressor comprehensive safety logic controlscheme effectively prevent a unit from entering the surge area, unit safety running is ensured, meanwhile, unnecessary parking caused by surging or overload can be avoided, maintaining cost is reduced, the service life of the compressor is prolonged, process production continuity is ensured, through continuous-time production process, the anti-surge control system is stable and reliable in work, antijamming capability is high, and certain application and popularization value is achieved.

The invention discloses a detection unit for an online negative pressure air suction conveying device of a roll paper die-cutting machine belt. The detection unit comprises the conveying device, negative pressure cavity boxes, a foldable negative pressure cavity box, a sliding device of the foldable negative pressure cavity box and a belt supporting frame. The negative pressure cavity boxes and the foldable negative pressure cavity box are arranged on the lower face of a conveyor belt and the foldable negative pressure cavity box can slide, stretch and retract in one negative pressure cavity box. A negative pressure cavity panel is arranged on the negative pressure cavity boxes and the foldable negative pressure cavity box. The negative pressure cavity boxes are fixed to a rack, the foldable negative pressure cavity box is fixed to the sliding device, and the sliding device is connected with a cylinder. The negative pressure cavity boxes and the foldable negative pressure cavity box are provided with connectors and connected with an exhaust fan. The belt supporting frame is a mesh type frame arranged on the negative pressure cavity panel. A dust removal device and a connection device can be additionally arranged on the detection unit. Products can be stably and accurately conveyed to a detection device through the negative pressure air suction conveying device.

The present invention belongs to the field of electronic information technology, and is especially one engine remote measuring and early warning equipment. The engine remote measuring and early warning equipment consists of system units in the first and the second operator's cabins, air pressure detectors mounted separately on the pantographs and wind pump pipes, motor detectors mounted separately on the motors, and one temperature detector mounted on the main transformer. All the parts operate automatically for real-time detection of the air pressure, temperature, etc; and the detected data are transmitted to the system units. In case of some fault, the system units will send corresponding phonetic prompt and digital display. The system units may realize bidirectional communication with other railway equipment to ensure the optimal engine performance and the safety.

The embodiment of the invention discloses a turning control method, device and system of an unmanned mobile device and a storage medium. The method comprises the steps that when a turning instructionis received, acquiring the position coordinate and the posture angle of a target point; according to the obtained steering wheel speed and steering wheel angle, calculating position coordinates and attitude angles of the vehicle body at each moment in the turning process in real time; determining the position control quantity of each moment according to the position coordinates of the target pointand the position coordinates of the vehicle body at each moment, and determining the attitude control quantity of each moment according to the attitude angle of the target point and the attitude angle of the vehicle body at each moment; and according to the position control quantity and the attitude control quantity, determining the output control quantity of each moment, sending the output control quantity of each moment to a driver, and indicating the driver to drive the vehicle body to turn in motion according to the output control quantity. By calculating the position coordinates and theattitude angle of the vehicle body in real time, the position coordinates and the attitude angle are respectively controlled, the turning time is shortened, and the turning efficiency is improved.