42results about How to "Safe passage" patented technology

An emergency vehicle traffic light preemption system for preemption of traffic lights at an intersection to allow safe passage of emergency vehicles. The system includes a real-time status monitor of an intersection which is relayed to a control module for transmission to emergency vehicles as well as to a central dispatch office. The system also provides for audio warnings at an intersection to protect pedestrians who may not be in a position to see visual warnings or for various reasons cannot hear the approach of emergency vehicles. A transponder mounted on an emergency vehicle provides autonomous control so the vehicle operator can attend to getting to an emergency and not be concerned with the operation of the system. Activation of a priority-code (i.e. Code-3) situation provides communications with each intersection being approached by an emergency vehicle and indicates whether the intersection is preempted or if there is any conflict with other approaching emergency vehicles. On-board diagnostics handle various information including heading, speed, and acceleration sent to a control module which is transmitted to an intersection and which also simultaneously receives information regarding the status of an intersection. Real-time communications and operations software allow central and remote monitoring, logging, and command of intersections and vehicles.

A dielectric tubular fitting for dissipating electrical energy, while providing fluid flow therethrough, the fitting including coaxial first and second generally tubular light metal housings, with a first, generally cylindrical, spacer of a Peek material composition being sealingly interposed therebetween and a first generally disc-shaped first ESD (Electrostatic Discharge) spacer, of a Krefine material composition, for controlling the electrical resistance between the first and second housings, being additionally interposed between as well as both axially and radially separating at least the first and second housings, with a tubular insulator housing, of a carbon filled PTFE type material composition, enveloping at least a portion of the first housing. Several embodiments of both in-line and bulkhead type fittings are set forth, one of the latter including frangible screws and an external fracture plane, with an internal controlled weak portion including an internal fracture plane, these fracture planes providing controlled breakaway features.

The invention relates to the field of traffic control and particularly discloses a dynamic coordinated control method for the bidirectional different requirements of a trunk road. The method comprises the following steps of (1) calculating a key intersection largest in traffic flow according to the historical data of a detection coil; (2) determining a plurality of different coordination strategies according to the different traffic requirements in the up and down directions of the key intersection, and calculating a coordinated timing plan in different coordination strategies through constructing a model; (3) finally, according to the traffic flow monitored in real time, voting and determining an optimal coordination strategy. According to the invention, the method can meet different traffic requirements in the two ways of a trunk road. By adopting the method, the traffic efficiency of the trunk road can be effectively improved, and the traffic jam of the trunk road can be relieved. Therefore, the travel time of citizens can be saved. Meanwhile, the energy consumption of vehicles can be saved, and the pollution of the traffic environment can be reduced.

The invention relates to a three-wire parallel small spacing large section tunnel group construction method. The three-wire parallel small spacing large section tunnel group construction method includes the steps that advance geology forecast is conducted; tunnel entrance large pipe shed pre-reinforcement is conducted; advanced pre-reinforcement is conducted on two sides of a tunnel; blasting is controlled; preliminary supporting is conducted; secondary lining is constructed; monitoring and measurement are conducted. A new austrian tunneling method is adapted, destabilization on surrounding rocks is reduced, the strength of the surrounding rocks is not damaged, an uniform structural system is formed by the surrounding rocks and all kinds of structural supports, grouting advanced pre-reinforcement measure is conducted by using a large pipe shed, a middle pipe shed and small guide pipes, grouting reinforcement is conducted on tunnel faces and middle rock pillars, the preliminary supporting is timely, the temporary supporting is reasonable, the stability of the surrounding rocks of the tunnel is guaranteed, the construction is safe and reliable, the outline of the fracture surface is formed and structured by using elementary error smooth blasting, the lining construction is facilitated, the construction quality is guaranteed, the work amount of over-excavation and under-excavation is reduced, the construction progress is kept, the construction cost is lowered, and the economic benefit is remarkable.

The invention provides an expressway agglomerate fog guide layout method. The method comprises the following steps: measuring an expressway route of an agglomerate fog section; arranging a display screen and a voice playing device at two ends of the agglomerate fog road section; uniformly arranging a plurality of radars, a plurality of guide lamps and warning lamps on the two sides of the agglomerate fog road section; arranging road monitoring cameras at the two ends of the agglomerate fog road section; according to the detected visibility information, controlling the playing mode of prompt information and the turn-on of a guide lamp or a warning lamp; and when the radar detects that the target vehicle is overspeed or the distance between the target vehicle and the front vehicle is smaller than a distance threshold value, controlling a warning lamp near the target vehicle to flicker according to a preset frequency. The driving state of the vehicle and the distance between the front vehicle and the rear vehicle are monitored through the radar, and a driver is warned through flickering of the red light, so that the driver knows the state of the driver and can adjust the driving state in time, the driving safety of the vehicle is ensured, and traffic accidents are reduced.

A multiple floor roadway tunnel has a circular wall and two horizontal slabs, one above the other and spaced apart to create three separate galleries within the tunnel. A service gallery is located between the bottom of the circular wall and the lower horizontal slab. A lower roadway gallery is located between the lower and the upper horizontal slabs. An upper roadway gallery is located between the upper horizontal slab and the top of the circular wall. Openings in the upper and lower slabs are located proximate the circular wall in spaced apart intervals and protected by fire devices of box type, which are connected by closed vertical access galleries for passage of people between galleries. The service gallery has at least one circulating shuttle vehicle, which may suspended from the lower horizontal slab, to allow for local access and the evacuation of people.

The invention discloses a road traffic safety management system based on big data. The road traffic safety management system comprises a road image acquisition module, an image preprocessing module, afeature type extraction module, a feature type matching module, a road storage data module, a data transfer analysis module, a vehicle detection module, a vehicle speed optimization analysis module,a management cloud server and a traffic obstruction module. According to the invention, the driving speed of a vehicle on the right-turn lane is analyzed through the vehicle detection module and the vehicle speed optimization analysis module; analysis of vehicle speed, a road image acquisition module, a feature type extraction module, a feature type matching module, a data transfer analysis moduleand a management cloud server are combined; according to the method, the driving comprehensive risk assessment coefficient of the vehicle in the right-turn process is comprehensively analyzed, the risk degree of the vehicle passing through the pedestrian crosswalk according to the current vehicle speed can be visually predicted, the prediction accuracy is high, early control and early warning reminding are facilitated, and traffic accidents are reduced.

The invention relates generally to an apparatus and method that enables a very accurate initial setup of the coating gap for slot die coater and subsequent control of the coating gap during coating operations such that web splices and web defects do not interrupt the coating process. An highly accurate initial set up is achieved via the use of a tapered or wedge-shaped adjustment member mounted perpendicular to the axis of travel of the coating head where the movement of this tapered or wedge-shaped adjustment member in a direction perpendicular to the axis of travel of the slot die housing adjusts the coating gap in increments on the order of ten microns. Substrate splices and defects are detected prior to reaching the coating position such that a feed-forward controller is able to momentarily retract the coating head both avoiding slot die damage and avoiding interruption of the coating process, yet the apparatus is able to return the coating head, with high precision, to its prior position once the splice or defect has passed.

Rescue elevator system, comprising a rescue ladder and an elevator running on rails on a top side of the rescue ladder up to an end position at one end of the rescue ladder, and an elevator drive comprising a rope, a rope winch for pulling the rope and a deflection roller over which the rope is guided from the rope winch to a suspension point at the elevator, wherein the deflection roller is disposed below the rails at or near the one end of the rescue ladder, characterized in that the suspension point is displaced towards a trailing end of the elevator averted from the one end of the rescue ladder such that in the end position of the elevator, the suspension point is located in a distance from the deflection roller in the extension direction of the rails, and the elevator comprises a passage ladder to bridge the distance between the suspension point and the deflection roller in the end position of the elevator, said passage ladder lying on top of the rope and being mounted between the rails at a hinge axis perpendicular to the extension direction of the rails and extending generally towards the one end of the rescue ladder such as to be pivotable between a flat position in which it lies generally parallel to the plane of the rails and an inclined position in which it is inclined downwardly towards the bottom side of the rescue ladder.

The invention discloses a self-stabilizing ship gangway ladder system and a control method, and relates to the field of ship berthing gangway ladders. The self-stabilizing ship gangway ladder system comprises a six-degree-of-freedom hydraulic stabilizing platform, a gangway ladder stabilizing controller and a gangway ladder lifting and rotating mechanism. The six-degree-of-freedom hydraulic stabilizing platform comprises a platform stabilizing system. The platform stabilizing system comprises a hydraulic cylinder jacking system, a bearing platform, a PLC, a peripheral circuit, a servo signal amplification processing circuit and an electric servo system. The ship gangway ladder stability controller comprises a main control panel, a ship attitude signal collector and a serial port communication module; the ship attitude signal collector is used for collecting attitude change real-time values of a ship under the action of surges and wind power and sending data to the ship gangway ladder stability controller; and the gangway ladder lifting and rotating mechanism comprises a lifting motor, a rotating motor, a gear meshing device, a steel wire rope winding drum, a first lifting limiter,a second lifting limiter, a first rotating limiter and a second rotating limiter.

The invention discloses a limiting device for steel pipe surface detection. The limiting device is arranged in front or and the rear part of a seamless steel pipe surface detection system, and is connected with a field production information system. The limiting device comprises a side baffle, a rotating shaft center, an adjusting mechanism and a spring, wherein the side baffle is arranged above the steel pipe and is used for restraining and limiting the steel pipe, the center of the rotating shaft is connected to the front end of the upper surface of the side baffle, the side baffle can rotate around the center of the rotating shaft, the lower end of the spring is connected to the rear end of the upper surface of the side baffle, the upper end of the spring is connected with the adjustingmechanism, and the position of the side baffle is adjusted through the adjusting mechanism, so that a gap between the side baffle and the steel pipe is adjusted. According to the limiting device, thedetection system can be effectively matched with the limiting device to perform visual imaging on the surface of the steel pipe according to the requirement of the detection system on the surface ofthe seamless steel pipe.

A customizable waterway to transport storm-water over non-permeable substrate. Affixed to the substrate, it is low-profile and weight-bearing to allow wheelchairs to pass over without interference and without disturbing the apparatus.

A control device used for a tristate LED lamp comprises a LED lamp and a LED power supply. The LED lamp at least comprises a first LED lamp and a second LED lamp. The LED power supply at least comprises a first LED power supply and a second LED power supply. The first LED lamp and the first LED power supply form a first loop. A time control signal is connected to the first loop. The second LED lamp and the second LED power supply form a second loop. An image control signal output by a DSP, a FPGA or an ARM is connected to the second loop. The time control signal is connected to the first loop through a unidirectional silicon controlled rectifier, a bidirectional silicon controlled rectifier, a photoelectric coupler, an optical coupling bidirectional silicon controlled rectifier, a triode, a composite triode, a relay and/or a MOS pipe. The image control signal is connected to the second loop through the unidirectional silicon controlled rectifier, the bidirectional silicon controlled rectifier, the optoelectronic coupler, the relay and/or the MOS pipe. The device possesses characteristics that operation is flexible and energy consumption is low.

A guide wire that has an atraumatic and flexible loop that expands within a vessel, with indicators that indicate the degree of expansion. The indicators are used to determine the degree of expansion through the use of radio-opaque markers, hydraulic, and electrical signals. The guide wire enables safe passage into target vessels while providing user feedback on inadvertent passage into side branches and diseased segments.

The invention discloses a device for rapidly measuring the height of a ship, and a ship height exceeding early warning system and method. The device for rapidly measuring the height of the ship obtains the height difference between the highest point of a navigable ship and the ground plane through laser correlation, and then the height of the ship is obtained through calculation by combining the water level information of a measurement area and the real-time draught of the ship. The ship superelevation early warning system obtains the height information of the ship based on the rapid ship height measurement device, obtains the AIS information of the ship in combination with the AIS base station unit, fuses the obtained ship height and the AIS information on the ship superelevation early warning platform, and then performs ship superelevation early warning judgment based on the fused AIS information by the ship superelevation early warning platform. The invention further discloses a method; when the ship has the risk of superelevation, the ship superelevation early warning platform autonomously judges whether the ship is superelevation or not and actively sends superelevation early warning information to the corresponding ship.