24062results about "Roads maintainence" patented technology

A tire pressure monitoring system, that includes a plurality of the wheel state detection unit, provided at wheel of a vehicle, and that transmits detected wheel state information. A request signal transmitter transmits a request signal to request transmission of the detected wheel state information. When each wheel state detection unit receives the request signal, it transmits the detected wheel state together with the indication information indicating that the wheel state is detected in response to the transmission request signal. The ECU sets a determination threshold value for triggering an alert regarding tire pressure based on the detected wheel state information transmitted from the plurality of wheel state detection units.

A method and apparatus for video encoding, predecoding, and video decoding for video streaming services. The video encoding method includes encoding first and second video sequences into first and second bitstreams using scalable video coding, wherein at least one of resolution, frame rate, and image quality of the second video sequence is different from that of the first video sequence, and combining the first and second bitstreams into a super bitstream.

Marking devices for dispensing markers on the ground and marking methods are provided. The marking devices and marking methods use a marking dispenser having a machine-readable ID mechanism. The ID mechanism has data storage capability. In one embodiment, the marking dispenser may be provided with a radio-frequency identification (RFID) tag. In another embodiment, the marking dispenser may be provided with a barcode. The type of information that may be encoded in the ID mechanism may include, but is not limited to, product-specific information, user-specific information, other predetermined information of interest, and any combination thereof. The ID information encoded in the ID mechanism may be collected and used for various purposes, such as, but not limited to, real-time product verification, tracking which user location received a batch of marking paint, tracking marking paint inventory, tracking marking paint problems, and tracking marking paint usage.

A plurality of interlocking tile pieces form a generally flat traffic-carrying surface. The tile are locked together in a manner to form a plurality of non-bendable tile joints. The tile includes a hinge or fold line along a first axis and a hinge or fold line along a second axis. The hinges allow the multi-tile traffic carrying surface to be rolled up into a hollow tube from any direction along one of the axes, beginning at any edge of the traffic carrying surface. The rolled-up floor covering is made up of a plurality of tile panels.

A vehicle tire communication and information system for viewing air psi and other characteristics that affects psi in a tire includes un-obstructive sensors embedded in a silicon substrate and etched in a re-enforced micro-fibered material to enable excellent detection platform, sensitivity, and selectivity within the detection environment. The embedded sensors facilitate detection and communication efficiency and transforms electrical energy into acoustic energy indicative of data transmission to a wireless electronic control module, allowing a nitride membrane to march the acoustic impedance of the air inside the tire to enable pressure waves indicative of the tire pressure.

A global navigation satellite system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. A vehicle control method includes the steps of computing a position and a heading for the vehicle using GNSS positioning and a rate gyro for determining vehicle attitude, which is used for generating a steering command. Relative orientations and attitudes between tractors and implements can be determined using optical sensors and cameras. Laser detectors and rangefinders can also be used.

In embodiments, the present invention may comprise a sensor-based tire data collection facility integrated with the body of a vehicle tire, wherein the sensor-based tire data collection facility includes a stretchable electronics circuit and a wireless communications facility for communicating data collected by the sensor-based tire data collection facility to a vehicle data collection facility external to the body of the vehicle tire.

An automatic ground marking apparatus including a carriage (1) responsive to carriage control signals for traversing the ground (5), the carriage having a controllable steering and drive system, a controllable marking system and a position determining system (6) arranged to determine the position of the carriage. The ground marking apparatus further includes a processor (8) responsive to the position determining system and operatively executing a software product for generating said carriage control signals to cause the carriage (1) to mark out a predetermined sign (14) on the ground. The position determining system (6) suitably employs a laser beam (4) and reflective tracking prism (2), and the predetermined sign may be defined by data points stored in a file (9) accessed by the processor (8).

A system for acquiring, processing, storing, analyzing and reporting data relating to the condition of a road or other pavement surface (102) in real time. The system includes a digital camera (104) mounted on a vehicle and positioned relative to a pavement surface (102) so as to capture images of the pavement surface (102) while the camera (104) is moving relative to the surface (102). The system also includes an illumination assembly (100) to illuminate the region from which an image is taken and an interface between the digital camera (104) and at least one computer. The system also includes a processor in the computer for processing the images to detect and classify cracks and other pavement surface (102) features.

The invention relates to bitumen or asphalt for producing a road topping, whereby said bitumen or asphalt contains a proportion of paraffin obtained by Fischer-Tropsch synthesis (FT paraffin). The invention also relates to a road topping with said bitumen and to a method for producing a corresponding road topping or roadway / covering using said bitumen.

The frequency of an information signal indicative of the vibration of a wheel detected by an acceleration sensor 11 mounted to a wheel 1 or the frequency of an information signal indicative of a change in the pressure of a gas in a tire detected by a pressure sensor 31 installed in the tire is analyzed by frequency analyzing means 14 (34), the band value of the obtained vibration spectrum or pressure change spectrum is detected, and a vibration level or pressure change level at the detected frequency band is compared with a vibration level table 15T showing the relationship between road friction coefficient μ and vibration level stored in vibration level storage means 15, or a pressure change level table 35T showing the relationship between road friction coefficient μ and pressure change level stored in pressure change level storage means 35 to estimate a road friction coefficient μ. Therefore, it is possible to estimate the value of road friction coefficient μ accurately and improve the safety of a car.

A grid-top floor tile for outdoor use includes a polymer tile having a grid-type top surface with multiple levels, such as a bi-level surface having an upper lattice and a lower lattice oriented generally transverse to the upper lattice. The multiple levels of the surface are preferably integrally formed with one another and provide drainage gaps therethrough. In a bi-level surface configuration, the lower lattice has a top surface below a top surface of the upper lattice, so as to draw residual moisture below the top surface of the upper lattice. The tile further includes a support structure, configured to support the tile on a support surface and provide drainage pathways beneath the top surface. The tile still further comprises various reinforcement members on each of the loop and pin connectors used to interlock the tiles when forming a flooring assembly.

An mat system with each mat having sloping lips which overlap with an adjacent mat's sloping lips and are secured by interlocking joints in the mats' lips and / or by captive locking pins to form an easily assembled and interconnected flat surface. In use, opposing ledges forms a slot within holes in the top overlapping lips to receive a captive locking pin. The pin is captive by mid body prongs which fix underneath the ledges in a mat's upper lip's holes, and the pin locks and unlocks with rotary turning of the pin resulting in the pin's keeper feet fixing underneath the similar ledges in the holes of the lower lip of an adjacent mat.

There are provided a method of creating an optimized core-tile-switch mapping architecture in an on-chip bus and a computer-readable recording medium for recording the method. The core-tile-switch mapping architecture creating method includes: creating a core communication graph representing the connection relationship between arbitrary cores; creating a Network-on-chip (NOC) architecture including a plurality of switches, a plurality of tiles, and a plurality of links interconnecting the plurality of switches; and mapping the cores to the tiles using a predetermined optimized mapping method to thereby create the optimized core-tile-switch mapping architecture. The optimized mapping method includes first, second, and third calculating steps. According to the optimized core-tile-switch mapping architecture creating method and the computer-readable recording medium for recording the method, since the hop distance between cores is minimized, it is possible to minimize energy consumption and communication delay time in an on-chip bus. Furthermore, the optimized mapping architecture presents a standard for comparing the optimization of other mapping architectures.

Three-dimensional parameters of a tire are measured dynamically in a non-contact way using laser vision technology. Two laser vision sensors are used, which are calibrated and then used for practical measurement. The system offers a wide measuring range, high accuracy and high efficiency, even though the tire is moving, and it minimizes the size of the measuring apparatus, and reduces the cost of the apparatus.

The silo includes at least three hoppers terminating in rectilinear discharge openings extending lengthwise transversely of a loading area below the discharge openings. Clam gates are movable between open and closed positions to discharge material. The discharge area at the bottom of the silo is increased, facilitating faster loading of trucks with the particulate material.

A turret control system and method for a fire fighting vehicle is disclosed. The turret control system includes one or more control modules, such as an envelope control module, turret targeting module, a turret pan module, a turret deploy module, a turret store module. The preferred turret control system also provides improved turret control flexibility and improved operator feedback.

A method of processing information in a tire pressure monitoring system includes the steps of: establishing a reference temperature; determining a pressure warning threshold at the reference temperature; measuring gauge pressure and gauge temperature within a tire cavity; correcting the gauge pressure to a filtered pressure value at the reference temperature using the Ideal Gas Law; and comparing the filtered pressure value against the pressure warning threshold to determine the necessity for a warning signal. In an advanced form of the invention, the method includes determining a pressure leak rate; predicting the time interval that the filtered pressure value will cross the pressure warning threshold at the leak rate and generating progressive warnings to the driver over the time interval. Fuzzy logic is used to quantify the probability of a warning state for each data point, allow for measurement error; and report the state of maximum probability to minimize the occurrence of false warning. A warning utility function is derived based upon a combination of the filtered pressure and leak rate.

An electronic vehicle tester includes a battery tester configured to measure a parameter of a battery of a vehicle. A tire tester is configured to receive a parameter of a tire of the vehicle. A wireless receiver can be configured to receive pressure information from a transmitter associated with a tire of a vehicle.

An elongate modular decking plank is provided for assembly on a supporting subfloor together with a plurality of like planks to form a decking structure. The decking plank has a top wall spaced-apart from a bottom wall, and opposing laterally spaced downwardly converging side walls interconnecting the top and bottom walls. An integrally-formed flange extends outwardly from the bottom wall on one of said sides of the decoding plank. The flange includes a fastening portion for receiving fasteners therethrough to the supporting subfloor to mount the decking plank on the supporting subfloor, and a connecting portion for connecting the plank to an adjacent like plank in a manner which permits limited lateral and angular adjustment between adjacent planks. The plank is preferably extruded from high-impact polymeric material, such as PVC plastic.

A system (10) and method is provided for calibrating a tire pressure monitoring system using an EM transmitter (14). The present invention includes a first pressure sensor coupled to a wheel of an automotive vehicle (12). The EM pressure transmitter (14) is coupled to the pressure sensor (32). The transmitter (14) has a serial number associated therewith. An EM calibration device has a transmitting range. The EM transmitter device has an actuator. When the actuator is activated, a calibration signal (34) is transmitted within the transmitting range. The calibration signal causes the EM pressure transmitter (32) to transmit a serial number. A controller (16) is EM coupled to the pressure transmitter. The controller (16) receives the serial number and associates the serial number with a tire location of the vehicle.

A control system (11) for a vehicle (10) includes vehicle dynamics sensors (35-47) providing a vehicle dynamics signal. Tire monitoring system sensors (20) in each wheel generate tire signals including temperature, pressure and acceleration data. A controller (26) communicates with the tire monitoring system sensors (20) and at least one vehicle dynamics sensor, and generates a tire abnormality value as a function of the multi-axis acceleration data of the tire signals. Tire multi-axis acceleration data is also used to detect a roadway departure, and an oversteer or understeer event.

A fluid dispensing arrangement and skid pan for use with a fire fighting vehicle, with the vehicle defining an under-vehicle volume. The fluid dispensing arrangement comprises a fluid source, a nozzle support coupled to the vehicle and movable within at least a part of the under-vehicle volume. A nozzle assembly is supported by the nozzle support and is in fluid communication with a fluid source. An actuator is coupled to the nozzle support to move the nozzle support within at least a part of the under-vehicle volume.