131 results about "Canyon" patented technology

Methods and apparatuses for estimating a user's altitude with respect to the mean sea level are provided. According to some aspects, the present invention is able to estimate altitude in both open sky as well as in degraded GPS signal environments such as dense urban canyon environments where GPS performance is affected by fewer available satellites and/or multipath error. According to other aspects, the present invention uses data from a pressure sensor to estimate altitude, either with or without the use of GPS aiding data. According to further aspects, estimated altitude is integrated with other types of dead reckoning data to provide user context detection pertaining to changes of altitude.

This invention relates to a system and method to generate a private, auditable, evidentiary quality record of the location-history of an asset or person. This invention addresses ten critical improvements over existing systems that are proposed or used for metering for payment services for tolling roads, parking or pay-as-you-drive insurance, namely, cost-effective location accuracy in harsh signal environments, evidentiary assurance of location estimation, handling of dynamic and stationary positioning in a single device, high-ratio compression for a set of stationary positions in urban canyon, high-ratio compression for a dynamic tracklog in urban canyon, high-ratio compression for a set of asset motion behaviors, a method of remote device health check, including anti-tampering, removal of residual price assignment errors, anonymous use without on-board maps, and a method of deconsolidating payments to multiple payees with multiple payment regimes. This system can be applied to road-pricing, congestion-pricing, metered-by-the-minute parking and pay-as-you-drive insurance, incorporating privacy management, and legal admissibility of the evidentiary record. This same device can also be applied to vehicular fleets, military ordinance, or other location audits for assets whether motorized or not, as might be needed in evidence of contract fulfillment or other forms of non-realtime geofencing audits.

The present invention provides a technique for forming a CMOS structure including at least one pFET that has a stressed channel which avoids the problems mentioned in the prior art. Specifically, the present invention provides a method for avoiding formation of deep canyons at the interface between the active area and the trench isolation region, without requiring a trench isolation pulldown, thereby eliminating the problems of silicide to source/drain shorts and contact issues. At the same time, the method of the present invention provides a structure that allows for a facet to form at the spacer edge, retaining the Miller capacitance benefit that such a structure provides. The inventive structure also results in higher uniaxial stress in the MOSFET channel compared to one which allows for a facet to grow at the trench isolation edge.

The invention relates to an unmanned aerial vehicle vision/inertia integrated navigation method in the unknown environment. The method relates to image processing, inertial navigation calculation and filtering estimation, so that the steps of defining coordinate system, aligning the coordinate system, setting up filter equation and the like are firstly carried out before the main navigation method is implemented. The navigation process of the method comprises five steps: acquiring and pretreating image; extracting feature points by a SIFT method; matching the feature points; updating the filter equation; and carrying out the filtering estimation on the updated filter equation. The method only needs the current ground image instead of specific external information for matching, so as to be used in any environment (including underwater, shelter, canyon, underground and the like) in theory; furthermore, the method has the advantages of good sheltered property and high accuracy.

In one embodiment, the position of a mobile device is determined based, at least on part, of the relative locations of two or more nearby points. Distance data, received from a range finding sensor, corresponds to distances to the two or more nearby points from the mobile device. A predetermined model that includes previously recorded locations for objects is accessed to receive location data for two or more nearby points. A position of the mobile device is calculated based on the location data and the distance data. The nearby points may be building edges or building corners. The calculation may involve a series of equations. The series of equations may include satellite-based positioning equations in addition to equations based on the predetermined model.

The invention discloses an odometer-based GNSS/INS (Global Navigation Satellite System/Inertial Navigation System) vehicle-mounted combined positioning and orientation algorithm for overcoming satellite locking loss. A position and a speed are calculated by GNSS data and an inertial navigation system, the difference value between the two serves as a measurement observation value for a Kalman filter, and each condition amount is fed back and corrected; the odometer is used for correcting each condition amount in an IMU (Inertial Measurement Unit), an INS/ODO combined method is used, summation and subtraction are carried out on an IMU output amount and the output value of the odometer during a filter time period to correct a scale factor of the odometer and a mounting error angle between an odometer coordinate system and a navigation coordinate system. In the case of GNSS satellite locking loss, the odometer corrects each error item in the IMU, which is particularly helpful for enhancing the IMU independent navigation position precision. The algorithm is particularly suitable for being applied in urban canyons where signal locking loss phenomena are likely to happen as GNSS satellite signals are blocked, and the overall system can keep a high-precision positioning result.

The invention discloses a satellite positioning method in urban canyons based on 3D urban model assistance. The satellite positioning method belongs to the technical field of satellite positioning andnavigation. According to the satellite positioning method, data is acquired in different scenarios to generate a historical training data set and threshold signals are eliminated, a reliable satellite signal reception type judging rule is generated by means of a decision-making tree, candidate positions are screened through comparing an inversion result of a candidate position received signal type and a judging rule prediction result, a final positioning result is determined through correcting errors caused by multi-path and non-line-of-sight received signals by adopting a method based on pseudo-range similarity, and the precision of satellite positioning in the urban canyons is improved.

A system for performing airport security screening of canyon bags and other separately scanned carry-on items such as electronics. The system includes a number of airport divestment and luggage carts. Each of the carts includes a frame with a lower support for receiving carry-on luggage, and the frame further supports security bins for receiving separately scannable items (such as a computing device). The system includes a 3D scanner scanning items passed through a scanning tunnel. The system also includes a conveyance system engaging the carts and transporting the carts through the scanning tunnel for 3D scanning, with such scanning including the carry-on luggage and the separately scannable items in bins. Typically, the frame of each of the carts is formed of one or more non-metallic materials and is non-collapsible. Further, the carts may be oriented to be upright during transportation through the scanner.

The invention provides a simple and reliable inertia/GPS (global positioning system)/milemeter combined algorithm for solving the precision positioning problem of vehicles in complex environments, such as bridges, trees, tunnel barriers, urban canyons and the like. The method comprises the following steps of: respectively independently calculating position information of a carrier through an inertia/GPS combined navigation algorithm and a milemeter dead reckoning algorithm, further fusing the position information obtained by calculation through the two different algorithms through an output correction filter with simple design, and finally giving out high-precision vehicle position information. Compared with a traditional single-filter deep combined algorithm, the method has the advantages of stronger environmental adaptability, no sensitivity to error models of GPS, inertial navigation and a milemeter, high reliability, high output precision, easiness in implementation and the like, and can well solve the precision positioning problem of the vehicles in the complex environments.

The invention relates to an aloft traveling device for ascending a height during hot-line work. The aloft traveling device comprises a rack body, traveling wheels and connecting holes, wherein the traveling wheels are symmetrically arranged at the upper end of the rack body, and are used for supporting the rack body; and the connecting holes are formed at the two ends of the rack body. The aloft traveling device is characterized by also comprising a seat, a pair of limiting devices, a lifting device, a speed regulation brake device and an anti-falling device, wherein the limiting devices are symmetrically arranged at the lower ends of the traveling wheels; the lifting device is matched with the limiting devices; and the speed regulation brake device is used for controlling the traveling wheels. Instable factors of manual speed control are avoided, the safety and autonomy of an operator are ensured, and the emergency operation of the operator encountering a special condition is facilitated; and when a rope ladder head slides downwards from a high altitude on a conductive ground wire with a great slope, speed can hardly be controlled if only the aloft operator grasps the wire with hands, and particularly in rough topographies such as mountains and canyons, the speed cannot be controlled by utilizing a rope on the ground.

A method of fabricating a FET device is provided that includes the following steps. A wafer is provided. At least one active area is formed in the wafer. A plurality of dummy gates is formed over the active area. Spaces between the dummy gates are filled with a dielectric gap fill material such that one or more keyholes are formed in the dielectric gap fill material between the dummy gates. The dummy gates are removed to reveal a plurality of gate canyons in the dielectric gap fill material. A mask is formed that divides at least one of the gate canyons, blocks off one or more of the keyholes and leaves one or more of the keyholes un-blocked. At least one gate stack material is deposited onto the wafer filling the gate canyons and the un-blocked keyholes. A FET device is also provided.

An orbital ion trap for electrostatic field ion trapping which includes an electrode structure defining an internal volume of the trap with at least some of electrode surfaces shaped to substantially follow equipotential lines of an ideal quadro-logarithmic electric potential around a longitudinal axis z. The ideal electric potential has an inner potential canyon, an outer potential canyon, and a low potential passage therebetween. The trap includes a trapping voltage supply which provides trapping voltages on the electrodes to generate a trapping electrostatic potential within the internal volume of the trap. The trapping electrostatic potential closely approximates at least a part of the ideal electric potential in at least a part of the internal volume of the trap.

The invention discloses a fish passing system for a high dam of a canyon reach. The fish passing system comprises a fish collection pond, an upper fish lift and a lower fish lift, wherein the upper fish lift and the lower fish lift are arranged on the upstream river channel shore side and the downstream river channel shore side of a dam body respectively, the upper fish lift is installed at the top of the dam body through an upper steel supporting frame, an upper steel cable A and an upper steel cable B are arranged at the two ends of the upper fish lift respectively, an upper fish collection tank A is arranged on the upper steel cable A, and an upper fish collection tank B is arranged on the upper steel cable B; the two ends of the lower fish lift are installed on a fish lift platform respectively through a lower steel supporting frame, one end of the lower fish lift is connected with the upper steel cable A, the other end of the lower fish lift is connected with the fish collection pond through a lower steel cable, and a lower fish collection tank is installed on the lower steel cable. The fish lifts are arranged at the upstream and downstream positions of the dam body of the dam, fishes lured into the fish collection pond at the downstream position of the dam are driven to the fish collection tanks and then lifted and conveyed to a reservoir at the upstream position of the dam, and therefore the purposes of fish passing through the upstream and downstream positions of a dam site and fish gene exchange are realized.

The invention discloses a bridge deflection change measuring method, device and equipment. A vertical plane is selected or arranged at any position of the bridge as a measuring plane; at least four positioning pieces containing control point images are arranged in the measuring plane; the control point images in all control pieces are not collinear at the same time; the method includes the steps of measuring the standard coordinates of the control points in the control point images in the positioning pieces under a horizontal coordinate system, placing a laser at any position, enabling laser spots emitted by the laser to fall into the measuring plane, placing a camera at any position, and enabling the measuring plane to be located in a shooting view field of the camera. A mode of combining laser indication with camera short-distance imaging is adopted, so that the problems that long-distance imaging is influenced by the atmospheric environment and measurement precision is influenced by postures of the camera can be avoided; through control point imaging processing, the influence of camera shaking on the measurement can be eliminated, and deflection measurement can be flexibly carried out on bridges on the water surface, canyons and other positions. The method is applied to the technical field of measurement.

The invention belongs to the technical field of navigation and positioning, and discloses a tight coupling positioning system and method using visual images and GNSS ranging signals. The method comprises the steps of shooting three or more feature points with known world coordinates by a camera to calculate the distance from the camera to the feature points; and performing tight coupling joint positioning by using the calculated approximate distance and a GNSS ranging observation value, and solving coordinates of a user. According to the invention, the availability, reliability and anti-interference performance of GNSS positioning can be improved in complex geographical and electromagnetic environments; and the GNSS ranging signals can be utilized to improve the positioning precision of the camera in turn. The image feature points are regarded as visual base stations, and the base station layout cost is not needed. The method is suitable for mobile phones and other portable devices, the user terminal cost is low, and the method can be used for solving the positioning problem of urban canyons and other complex environments. According to the method, the positioning service can be provided under the condition that the GNSS cannot perform positioning independently, so that the availability of the positioning service is improved.

The invention discloses an interactive coupling multidimensional intelligent collapsed rockfall monitoring system and method, and belongs to the technical field of geological disaster prevention and control. The system specifically comprises a rockfall sensing system, a signal transmission system, an information processing system and a sound and light alarm system; the rockfall sensing system is used for intercepting the collapsed rockfalls and transmitting rockfall information to the information processing system through the signal transmission system, and the information processing system isused for issuing a rockfall early warning instruction to the sound and light alarm system and issuing the rockfall early warning instruction to the public in a sound and light alarm mode. The systemhas the function of LoRA local area ad-hoc network, the system is accurate in monitoring data, high in operational reliability, low in error rate and low in power consumption, and the problems of poorcommunication signals and insufficient lighting in dangerous areas such as alpine canyon areas are well solved.

The invention discloses a testing device and method for simulating movement of a density current in a canyon. The device comprises a flat water tank, an oblique water tank, a laser instrument, a CCD camera, a hydraulic jack, a bearing platform, a water discharge guide pipe, a valve switch, a pulley, a guide rod, a guide rail and a calibrated scale. The testing method for simulating the movement ofthe density current in the canyon comprises the following steps of test building, testing, test device arrangement and data analysis. The device has the advantages that the structure is simple, the cost is low, the functions are diversified, the device can be suitable for various working conditions, and the testing precision is high; the flowing process of the density current in the canyon underthe abrupt change conditions of vegetation and terrain can be simulated, the testing process is convenient to operate, the testing efficiency is high, and the testing design is flexible. The testing result can provide data for research on the hydrodynamic characteristic of the density current and has a high reference value.

The invention discloses an inertial navigation device, which comprises a filter, a data solution module and an inertial navigation module, wherein the filter carries out noise filtering on received satellite signals to obtain ephemeris data; according to the ephemeris data from the filter, the data solution module calculates position coordinates and sends the position coordinates to a terminal; and the inertial navigation module sends inertial navigation data to the data solution module such that when the data solution module receives ephemeris data of less than four satellites, the data solution module calculates in a combined mode and outputs position coordinates according to the inertial navigation data. According to the inertial navigation device, continuous, seamless and accurate navigation and positioning functions in urban canyons, underground garages, elevateds, tunnels and other conditions.

The invention discloses a locating method based on non-synchronous reception. The locating method can solve the problem of location under discontinuous navigation signal reception, and the usability of satellite navigation in city canyons and in the complex environments of fast switching and the like is improved. A mode of refining code phases is adopted for restoring the millisecond fractional parts of the moments of transmitting signals, an iterative least square method is adopted for restoring the millisecond integer parts of the moments of transmitting the signals, then the moments of transmitting the signals are combined, and then the pseudo-ranges and the satellite positions are calculated; observation vectors are constructed through linearization of the pseudo-ranges, a state vector of a receiver is constructed by adopting the position of the receiver and the receiver moving posture which can be obtained externally, and at each observation moment k, a Kalman filtering method is utilized for resolving an estimated value of the state vector, namely, the estimated value is the locating result of the current moment k; the different pseudo-ranges are adopted at the different observation moments k to obtain the observation vectors, and the step four is repeated so as to finish location.