33results about How to "Good speed limit" patented technology

The invention relates to a car driving speed-limiting system based on the GIS and a running method of the car driving speed-limiting system based on the GIS. The car driving speed-limiting system comprises an information collecting device, a GIS speed-limiting control unit, an output display end and an execution device; the information collecting device senses the distance between a car and a car in the front, the running speed of the current car and the throttle position information of the current car, collects positioning information of the current car and displays and updates static state road network information in real time; the GIS speed-limiting control unit extracts the initial speed-limiting value and the road characteristic parameter of a current road section according to the positioning information of the current car and the static state road network information, amends the initial speed-limiting value in combination with the distance between the car and the car in the front and the road characteristic parameter, obtains the best speed-limiting value, obtains the maximum allowing throttle percentage value through conversion and limits the car speed of the car. According to the car driving speed-limiting system and the running method, the speed-limiting values of the car in all road sections will be continuously adjusted along with changes of the road condition, the car cannot exceed the maximum speed-limiting value in the road section even though a driver does any operation, and the running safety is guaranteed.

The embodiment of the invention provides a speed limiting method, device and system, electronic equipment and a computer readable storage medium. The method comprises the following steps: acquiring alimiting rate of a current target network flow to be limited in speed; obtaining a target slave node for limiting the speed of the target network flow and a target speed limiting unit of the target slave node; obtaining the total inflow flow of the target network flow flowing into each target speed limiting unit in the current first time period; obtaining the next token generation rate of the token bucket of each target speed limiting unit in the next first time period according to the total inflow flow and the limiting rate of the target network flow flowing into each target speed limiting unit in the current first time period; and issuing the next token generation rate of each target speed limiting unit in the next first time period to each target slave node, so that the token bucket ofeach target speed limiting unit generates a token by adopting the next token generation rate in the next first time period, and the flow of the target network flow flowing out of the gateway cluster is less than the limit rate.

The present invention discloses an internal three-ring decelerator, which consists of a bearing frame, an output axle, an input gear axle, two side tooth ring plates, a middle tooth ring plate, an internal tooth ring, and three eccentric crank axles, etc., wherein three eccentric crank axles are mutually paralleled; synchronous planet gears are respectively arranged on three eccentric crank axles, and arranged in a triangle, the small teeth number difference transmission is realized in the meshing process of two side tooth ring plates and the middle tooth ring plate with the internal tooth ring, the phase difference is 180 degrees finally, the qualities of two side tooth ring plates are respectively arranged into one seconds of the quality of the middle tooth ring plate; the bearing frame and the output axle are connected as a rigid frame structure, the circular disks at two end of the frame support three eccentric crank axles, the positions of the input gear axle and the output axle are positioned in an identical axial line, and the input gear axle is meshed with three synchronous planet gears. The present invention has the advantages that the reliability is high, the transmission ratio is large, the movement is steady, the carrying capacity is strong, and the layout is reasonable, thus being particularly suitable for being used under the working condition that the large power and the large torque are required.

The invention discloses a detection and control device of a shared bicycle. The detection and control device comprises a pressure sensor, a bicycle lock module, an AD conversion module, a control module, a motor driving module, a high-power DC motor, a low-power DC motor, a voltage reducing module, a boosting module, a lithium battery, a lithium battery protection module, a solar cell panel, a 5Vvoltage stabilizer, a speed sensor, a small magnet and a posture sensor. By means of the detection and control device, whether a bicycle rider is a beginner who is 12 years old or younger or not is judged according to two standards including the weight and the bicycle riding posture; compared with the mode of scanning a code for riding the bicycle, the age of the bicycle rider can be better distinguished. Moreover, through the combination of hand braking and automatic braking, compared with pure hand braking, the bicycle speed can be better limited. Furthermore, the riding speed of the bicycleand the left-right swinging amplitude of the bicycle can be monitored in real time, the brake function and the alarm function are automatically adopted, and the safety riding of the bicycle is facilitated.

A novel drive mechanism for a bicycle, featuring a scissor assembly defined by plurality of arms pivotally interconnected in an expandable sequence. The scissor assembly is attached pivotally to a frame on both sides and via a rigid slot attached pivotally to pedal cranks whereby permitting cranks oscillating motion. The cranks reciprocal oscillating motion is transferred by the assembly into a linear pulling force connected to a drive wheel axle, equipped with a freewheeling reel, by a flexible ligament spiraled in the reel. The efficiency of assembly's power transfer kinetics lessens required human force, in addition, the speed is substantially increased because the cranks motion is confined to the most efficient frontal segment of the 360-degree orbit whereby eliminating back-upward segment of the circular motion pedals.

The invention discloses a buffering device (1). The buffering device comprises a bumper cross rod (10) which is attached and connected to a frame (3) through a bumper connection piece (15) and can longitudinally move relative to the longitudinal direction of the frame (3). The buffering device is characterized in that the lower side wall of the frame (3) is provided with a groove; the groove is suitable for a long cantilever (53) of a pendulum bob (51) to pass, and the long cantilever (53) of the pendulum bob (51) is attached and connected to the lower side wall of the frame (3) through a pin shaft (52) in a free rotating mode; a blocking piece (41) transmits impacting force from the bumper cross rod (10) to a driving end (51) at the end of the long cantilever (53) of the pendulum bob (51) so that the pendulum bob can generate swing overcoming the gravity action. Due to the fact that the long cantilever rotates around the pin shaft, the distance between the driving end and the pin shaft is smaller than the distance from the gravity center of the pendulum bob to the pin shaft, and the pendulum bob can generate large reactive force according to the mechanics principle.

A method, system, and computer program product is provided, for example, for filtering road signs. The method comprises receiving a road sign observation information from a vehicle on a link. The road sign information includes at least a location of the vehicle. The method further comprises retrieving a sign file information from a database. The sign file information includes location of a plurality of VSS gantries in a geographical region. The method further includes filtering the road sign observation information if the location of the vehicle is within a predetermined distance threshold from at least one VSS gantry from the plurality of VSS gantries in the geographical region.

The invention discloses a spiral line rail aligning lift. The spiral line rail aligning lift comprises a lift car, guide rails and bearings. At least two spiral line guide rails are arranged on the wall face of a wall. Spiral line reels are arranged in the lift car. The center of the lift car is connected with central shafts of the spiral line reels through the bearings. The lift car is provided with turning wheels. The spiral line reels are provided with wheel rails, and the turning wheels are located on the wheel rails. Protection plates are arranged on the lift car and are attached to the spiral line guide rails, so that the lift car does not rotate when positioned. The spiral line reels are provided with driven teeth, and when driving force or rope power is applied to the driven teeth, the lift car ascends or descends in a spiral direction. Accordingly, the stable, safe and reliable potent effect is achieved.

The invention discloses a buffering device which comprises a bumper transverse bar (10).The bumper transverse bar (10) is attached to a vehicle frame (3) through a bumper connecting piece (15), permanent magnets (131) are arranged in an end plate (21) and a transverse partition board (13), and the magnetic pole of the permanent magnet in the end plate (21) and the magnetic pole of the permanent magnet in the transverse partition board (13) are opposite.The bumper transverse bar can sensitively respond and deform even under small impact force, pedestrians can be well protected in the low-speed state, and small deformation can automatically restore.

The invention discloses a mechanical sealing structure for an air turbine assembly of a hypersonic aircraft. The mechanical sealing structure comprises a metal corrugated pipe, a corrugated pipe support, a clamping base, a static ring, a movable ring, a flexible graphite packing, a flexible graphite gasket, a baffle plate and a metal base. Fuel oil for cooling is injected into a bearing cavity through an oil conveying hole and flows around the baffle plate, and flowing and heat exchange of the area nearby the corrugated pipe are enhanced. The oil flows into a bearing ring cavity along an interlayer between a shaft and the baffle plate and finally flows out of a bearing cavity. The corrugated pipe is fixed by welding a metal support and the corrugated pipe, so that a good sealing effect can be achieved, and the strength of the joint can be ensured to reach the standard. Circumferential rotation is limited in a mode that grooves and convex teeth are arranged on the outer circle and matched with each other, and axial displacement compensation can be provided. The mode that the metal base clamps a silicon carbide moving ring is adopted, and the eccentric motion degree of the moving ring is reduced. The sealing device has the characteristics of high working temperature and rotating speed upper limit, good cooling and heat exchange effects, lower bearing working temperature and simple and reliable structure.

An optical phase-shifting component is used for shifting the phase and modifying the intensity of the light beam injected into the fiber (MMF2). The component is inserted upstream or downstream of, or at an intermediate position in, the fiber. The component uses two mirrors and multiple beam paths between the mirrors. An optical phase-shifting structure (e.g., a reflective phase mask with a structured surface, which can be a mirror is effective at each reflection of the beam and gradually splits the beam into faster and slower propagation modes. The faster modes are subjected to one or more reflections more than the slower modes and are thereby decelerated. The fast and slow modes are combined again and are then transmitted in a multimode fiber in which the modes have different propagation speeds. The difference in the propagation speeds is thus at least partly compensated.

The invention discloses an air-cooled structure of a magnetic levitation motor, comprising a rotor, a stator, a casing, a first radial magnetic bearing, a second radial magnetic bearing and a first thrust magnetic bearing, the first radial magnetic bearing, a stator, a second The radial magnetic bearing and the first thrust magnetic bearing are sequentially arranged in the casing from left to right, and the rotor is supported in the first radial magnetic bearing, the stator, the second radial magnetic bearing and the first thrust magnetic bearing, and the thrust disc is also included , a cooling fan and a second thrust magnetic bearing, the thrust disk is sleeved on the right end of the rotor, the cooling fan is fixed on the outer peripheral wall of the thrust disk, and the second thrust magnetic bearing is located in the housing and on the right side of the thrust disk. The axial length of the rotor in the thrust disk fan layout is shorter, the cantilever section at the tail is greatly shortened, and the volume of the heavy object at the cantilever end is also reduced by half. Under the condition that other structures of the rotor remain unchanged, the structure of the present invention can effectively improve the bending stiffness of the rotor, thereby Increasing the upper limit of the rotor speed is conducive to giving full play to the advantages of the magnetic suspension bearing.

The invention discloses a vehicle type recognition method based on base station switching and a computer readable storage medium. The method comprises the steps that each base station collects signaldirection angles of a passenger vehicle and a commercial vehicle respectively when the passenger vehicle and the commercial vehicle switch to the base station, and a first direction angle characteristic interval, corresponding to the passenger vehicle, and a second direction angle characteristic interval, corresponding to the commercial vehicle, of each base station are obtained through calculation according to the signal direction angles; when one base station detects that a mobile terminal switches to the base station, the signal direction angle of the mobile terminal is acquired; the signaldirection angle of the mobile terminal is compared with the first direction angle characteristic interval and the second direction angle characteristic interval of the said base station to obtain a vehicle type judgment result, made by the said base station, of a vehicle where the mobile terminal is installed; and according to the vehicle type judgment results, made by all the base stations on aroad segment, of the vehicle where the mobile terminal is installed, the type of the vehicle where the mobile terminal is installed is determined. Through the method, the type of the vehicle on the road segment can be effectively recognized, and a management basis can be provided for a traffic management department.

The invention discloses a novel electric vehicle body, which is characterized in that the upper part of the vehicle body is designed into an upper vehicle body module (1), the lower part of the vehicle body is designed into a lower vehicle body module (2), and the upper vehicle body module (1) and the lower vehicle body module (2) are connected into an integral vehicle body; and a chassis system is arranged at the bottom of the vehicle body, a vehicle body opening / closing part module (3) is arranged on the vehicle body, and a decorating part module is arranged inside the vehicle body. The invention not only can realize the batching and consistency of process production, but also can reduce the cost and enhance safety.

The invention relates to the technical field of glutinous rice purity detection, and discloses a multifunctional glutinous rice purity detection vessel which comprises a separation box, an annular box is connected to the upper side of the separation box, first rotating rods are connected to the left side and the right side of the upper end of the separation box, and moving belts are connected to the outer sides of the two first rotating rods. The first rotating rods and the moving belt are both located in the annular box, a through hole matched with the moving belt is formed in the upper side wall of the separation box, a first motor is installed on the upper side wall of the separation box, the transmission end of the first motor is connected with the bottom end of the first rotating rod on the right side, and an inclined plate is connected to the left side of an inner cavity of the separation box; the front side of the top end of the inclined plate is connected with a lighting device, the top end of the inclined plate is provided with a detection device, the upper side of the inclined plate is connected with a detection head, and the glutinous rice can be divided and guided into the separation box through the arrangement of the annular box, the feeding pipe, the first rotating rod, the moving belt and the first motor.

The speed limiting protection device comprises a fixed shell, a speed limiting box is fixedly connected to the interior of the fixed shell, a fixed block is rotationally arranged on the lower inner wall of the speed limiting box, a rotating rod is slidably connected to the fixed block, and a rotating shaft is arranged on the rotating rod. The rotating rod penetrates through the speed limiting box and the upper inner wall of the fixed shell and extends out of the fixed shell, a plurality of fixed impellers are fixedly connected to the side wall of the end, located on the outer side of the fixed shell, of the rotating rod, a connecting rod is fixedly connected to the other end of the fixed block, and the connecting rod penetrates through the lower inner wall of the fixed shell. The rotating rod can be adjusted according to the rotating speed of the rotating rod, the force applied to the rotating rod is not changed when the rotating rod is subjected to speed limiting, speed limiting is facilitated, the rotating rod can be retracted into the fixed shell when wind power is too large, it is avoided that the rotating rod is excessively exposed to the outer side, and therefore the effect of protecting the rotating rod is achieved.

The invention relates to a flexible intelligent precision transmission device and provides a transmission device with high transmission stability. The transmission device comprises an eccentric input shaft, a supporting disk, a fixed gear module, an output module, two outer gears and a flexible intelligent connecting module, wherein the eccentric input shaft comprises two eccentric sections with the same eccentric distance and opposite eccentric directions; an inner gear is arranged on the fixed gear module; the fixed gear module and the eccentric input shaft are coaxially arranged; the supporting disk is arranged between the eccentric input shaft and the fixed gear module and can rotate; connecting long holes are formed in the two outer gears along the radial direction; the two outer gears are arranged on the two eccentric sections correspondingly and can rotate; each of the two outer gears and the inner gear are meshed to form a meshing pair with less tooth difference; the output module is arranged on the eccentric input shaft and can rotate; and the flexible intelligent connecting module passes through the two connecting long holes to connect the supporting disk with the output module. The flexible intelligent precision transmission device can be widely applied in the fields of high-end equipment, such as intelligent robots, high-grade numerical control machine tools, aerospace and the like.

The invention discloses an inner three-ring reducer, which includes a bearing frame, an output shaft, an input gear shaft, two side gear ring plates, a middle gear ring plate, an inner gear ring, three eccentric crankshafts and other components, and three eccentric crankshafts They are parallel to each other, and synchronous planetary gears are respectively installed on them, and they are arranged in an equilateral triangle. The two side gear ring plates and the middle gear ring plate realize transmission with less tooth difference during the meshing process with the inner gear ring, and the phase difference It is always 180°, and the mass of the two side gear ring plates is set to half of the mass of the middle gear ring plate; the bearing frame and the output shaft are connected to form a rigid frame structure, and the discs at both ends of the frame support three eccentric crankshafts , the positions of the input gear shaft and the output shaft are on the same axis, and the input gear shaft meshes with three synchronous planetary gears. The invention has the advantages of high reliability, large transmission ratio, stable movement, strong bearing capacity and reasonable layout, and is especially suitable for use under working conditions requiring high power and high torque.

The invention discloses a vehicle type identification method based on base station switching and a computer-readable storage medium. The method includes: each base station separately collects the signal direction angles of passenger cars and commercial vehicles when switching to the base station, and according to the signal direction angles, Calculate the first direction angle characteristic interval corresponding to the passenger car of each base station and the second direction angle characteristic interval corresponding to the commercial vehicle; when a base station detects that a mobile terminal is switched to the base station, obtain the signal direction angle of the mobile terminal; The signal direction angle of the mobile terminal is compared with the first direction angle characteristic interval and the second direction angle characteristic interval of the one base station to obtain the vehicle type judgment result of the vehicle to which the mobile terminal belongs by the one base station; Based on the determination result of the vehicle model of the vehicle to which the mobile terminal belongs, the vehicle model of the vehicle to which the mobile terminal belongs is determined. The invention can effectively identify the types of vehicles on road sections, and can provide management basis for traffic control departments.

The high-precision 3D printer with a camera of this application is equipped with a speed limiting mechanism at the sliding guide rail of the printing head, so as to ensure that the printing head can follow the action of the driving mechanism in real time and accurately, eliminate the problem of the gap between the transmission mechanism, and at the same time, enhance the The adaptability of the system will not affect the printing operation of the printing head when the driving mechanism is suddenly excited, which improves the printing accuracy of the 3D printer and improves the ability of the printer to resist external interference.

The invention discloses a buffer device (1) which comprises a bumper transverse rod (10). The bumper transverse rod (10) is attached onto a vehicle frame (3) by a bumper connecting piece (15) and can longitudinally move relative to the vehicle frame (3). The buffer device is characterized in that the bumper connecting piece (15) comprises a support rod (105) and a pivot plate (107), the support rod (105) longitudinally extends, and the pivot plate (107) is pivotally connected with a buffer frame (3') by a second rotary shaft (106); the pivot plate (107) can rotate relative to the buffer frame (3') within preset angles. The buffer device has the advantages that the bumper transverse rod can sensitively react to deform even under the effect of low impact force, accordingly, excellent pedestrian protection effects can be realized by the buffer device in a low-speed state, and the buffer device with small deformation can be voluntarily restored.

The invention discloses a mechanical sealing structure for an air turbine assembly of a hypersonic aircraft, comprising a metal bellows, a bellows support, a clamping base, a static ring, a moving ring, flexible graphite packing, a flexible graphite gasket, folding Flow plate and metal base; fuel for cooling is injected into the bearing cavity through the oil delivery hole, and flows around the baffle to enhance the flow and heat exchange in the area near the bellows parts; it flows into the bearing ring cavity along the interlayer between the shaft and the baffle Inside, and finally out of the bearing cavity. The metal support and the bellows are welded to fix the bellows, which can not only achieve a good sealing effect, but also ensure that the strength of the joint reaches the standard. The circumferential rotation is limited by the arrangement of grooves and convex teeth on the outer circle, and axial displacement compensation can be provided. The metal base clamps the silicon carbide moving ring to reduce the degree of eccentric movement. The sealing device has the characteristics of high working temperature and rotating speed upper limit, good cooling and heat exchange effect, low bearing working temperature and simple and reliable structure.

The invention provides a control method for improving vehicle driving safety, and belongs to the technical field of electronic sensing. The control method for improving the vehicle driving safety comprises the steps that S1, the state of a driver is collected; s2, analyzing the information; s3, fault management is carried out; s4, the driving state of the automobile is controlled; s5, positioning rescue; and S6, data transmission. During use, wheels are prevented from being completely locked, collision accidents in rainy days can be greatly reduced, and the engine protection unit transmits a signal to the emergency rescue module and is used for calling current vehicle positioning information from the vehicle positioning module and sending an emergency rescue request carrying the vehicle positioning information. The data transmission module transmits data to the vehicle management terminal, it is ensured that after the vehicle breaks down, data support is conducted on the fault problem of the vehicle, the fault position on the vehicle is determined conveniently, the control method facilitates automatic speed limiting of the vehicle, and the driving safety of the vehicle is improved.