31results about How to "Accurate and reliable location" patented technology

An apparatus and method for locating a magnetic implant in a surgical application using the field of a source magnet for the implant guiding field. The source magnet is an electromagnet having a separate calibrated magnetic field component in addition to the guiding field, so that both the magnitude and orientation of the magnetic field as a function of position around the magnet are known. A magnetic implant is provided with a sensor, such as a three-axis Hall effect sensor, to provide an indication of the magnitude and orientation of an applied magnetic field when the implant is surgically implanted in a patient. After implantation, the source magnet is energized with a current having a modulated component. The modulated component is received and filtered from the signal received from the Hall effect sensor in the implant, and provided to a processor that computes the location of the implant relative to the electromagnet based upon the detected magnitude and orientation of the modulated component of the magnetic field, and the location and orientation of the electromagnet. Localizers may be used to supply the relative locations of the patient and the electromagnet to the processor. A display may be provided to display a representation of the location of the implant in the patient, which may also be superimposed over a preoperative image of the patient.

Networks and methods are disclosed for accurately determining the location of a mobile device for a UMA network. When placing a special number call, such as a 9-1-1 call, the mobile device transmits access point identifiers (AP-ID) for a plurality of the access points accessible to the mobile device. A UNC in the UMA network receives the plurality of AP-ID's from the mobile device. The UNC is connected to a location system and transmits the AP-ID's to the location system over the connection. The location system receives the AP-ID's over the connection and queries an access point database that stores a location for each access point registered in the database. The location system then identifies a plurality of locations for the plurality of access points from the access point database, and estimates the location of the mobile device based on the plurality of locations identified for the plurality of access points.

Methods an apparatus for accurately and reliably positioning a device within an egg are provided. An opening is formed within a portion of the shell of an egg and a device is extended through the opening. The device includes a needle having a lumen containing a fluid under pressure. Fluid pressure is monitored and, in response to detecting a change in pressure of the fluid, movement of the device is stopped. Alternatively, fluid flow is monitored and, in response to detecting fluid flow from the needle, movement of the device is stopped. The device may be a substance delivery device that is configured to deliver a substance into the subgerminal cavity of the egg. The device may be a substance removal device that is configured remove a substance from an egg.

A holder for a position sensor of an electric machine. The holder includes a pocket for holding the position sensor, an abutment, and a biasing mechanism mountable to a fixture of the electric machine so as to bias the abutment relative to the fixture. Additionally, an electric machine that incorporates the holder, the electric machine including a stator against which the biasing mechanism biases the abutment.

The invention discloses a crankcase body plug riveting device. The plug riveting device comprises a base (1), a workpiece positioning and clamping mechanism (2) and a riveting execution mechanism (3), wherein the workpiece positioning and clamping mechanism (2) and the riveting execution mechanism (3) are arranged on the same base (1); the workpiece positioning and clamping mechanism (2) comprises a workpiece support seat (21), a support column (22), a workpiece pressing rod (241), a pressure plate (24), an upper support plate (23) and a workpiece clamping oil cylinder (25), which are sequentially arranged from bottom to top and are fixedly connected with the base (1); the riveting execution mechanism (3) is set to be of the same structure which corresponds to an oil duct plug on a crankcase body in to-be-riveted position, inner diameter and quantity; and the riveting execution mechanism (3) comprises an oil cylinder (31), a guide component II and a pressure head component, which are arranged on angle iron which is fixedly connected with the base (1). The plug riveting device is reasonable in structural design, low in cost, high in automatic degree and convenient and reliable to use; the riveting assembling quality of the oil duct plug is ensured; the labor intensity is relieved; and the work efficiency is effectively improved.

The invention provides a method for identifying a main transform plane of delta construction and destruction. Identification is carried out from perspectives of lithology, sand body types, sedimentary tectonics, paleontology, and geophysics and a precise position of a key transform plane of delta construction and destruction is determined. The method is characterized in that a main transform plane of delta construction and destruction is put forward firstly; and the sedimentary period of the delta is divided into a delta construction period and a delta destruction period based on the delta sedimentary effect for the first time. On the basis of the core, welllogging, logging, and seismic data, precision improvement is realized step by step; the position of the main transform plane of delta construction and destruction is determined comprehensively; and the data reliability and precision are high.

The invention provides a conveying device used in the manufacture of automobile wheel hubs, which belongs to the technical field of conveying devices. It solves the technical problems such as the insufficient stability of the automatic conveying of the existing automobile wheel hub. The conveying device includes a strip-shaped frame and a tray. Guide plates are provided on both sides of the top of the frame. The two guide plates are arranged in parallel and spaced apart, and the inner side of the guide plate has guide rails along the length direction of the frame. The two sides of the tray are slidingly embedded. In the guide rails of the two guide plates, one end of the frame is provided with a drive shaft, the other end of the frame is provided with a driven shaft, and a transmission part is set between the drive shaft and the driven shaft, and a drive tray is fixedly connected to the transmission part The pusher moves along the guide rail; the tray is provided with a placement plane for placing the hub and a positioning piece for fixing the hub. The conveying device designed in the present invention avoids collision or frictional damage on the surface of the hub; moreover, the hub does not shift or shake, and the position is accurate and reliable.

The invention discloses an LED light bar and a manufacturing method thereof. Aiming at the problems that the existing LED light bar has a thick thickness, high cost, positional deviation and easy falling off of shear marks, the manufacturing method of the LED light bar provided by the present invention makes The flexible circuit board of the obtained LED light strip is directly provided with marked holes or marked gaps to mark the cutting position. Compared with printing cutting marks on the surface of the light strip packaging adhesive layer, there will be no falling off, and the reliability is better; Mark holes are set between adjacent circuit cutting units on the flexible circuit board, and the setting position is more accurate and reliable, so as to avoid the cut LED light bar from not working normally; at the same time, the LED light bar can directly set the first LED chip Encapsulation on a flexible circuit board can omit the production process of LED brackets and LED lamp beads compared to the current LED light strips. The production efficiency is higher and the cost is lower. The obtained LED light strips are COB light strips, which are thinner and can be Better meet the needs of various application scenarios.

A contents border detection apparatus and monitoring method. The apparatus comprises a digital watermark detector for detecting a digital watermark embedded in contents for which a time element is provided; and a border detector for detecting border locations for the contents corresponding to the state of the digital watermark detected by the digital watermark detector. The border detector includes a first border specification device for specifying the border locations for the contents based on information, written in the digital watermark, that is detected by the digital watermark detector and includes a second border specification device for specifying the border locations for the contents based on bit patterns embedded as the digital watermark. The border locations for the contents are detected by using the process result obtained both by the first and the second border specification devices.

A surgical device for ophthalmic surgery, comprising pressing material, light guide fiber, traction strip and arc-shaped support, the pressing material and traction strip are respectively arranged on the inner side and outer side of one end of the arc-shaped support, and the middle part of the pressing material is A hollow channel is provided, and a through hole is provided corresponding to the hollow channel on the arc-shaped support. A hollow area is provided on the traction strip, and the connection between the traction strip and the arc-shaped support can be rotated freely. The through hole is embedded in the hollow channel. When the surgical device is in use, the pressing material can be aligned with the central area of ​​the macula through the light guide fiber, and the pressing height can be adjusted through the traction strip, and the arc-shaped bracket can be adjusted through the relative rotation between the traction strip and the pressing end. The suture position can make the implantation position of the pressing material accurate and reliable, the implant is stable for a long time, the operation is simple, and the side effects are few. It is suitable for the treatment of progressive deepening of high myopia and complications related to posterior staphyloma.

The invention discloses a quick capsule replacing center mechanism for a tire vulcanizer. A quick chuck replacing mechanism consisting of a steel ball retaining ring, a locking ring, a steel ball, a connecting rod and a locking cylinder can quickly replace a capsule and a sealing ring, time is saved, and the work efficiency of the vulcanizer is improved; an upper ring lifting water cylinder is separated from a ring seat and has an independent structure, so that processing and installation difficulty is reduced, internal pressure superheated water can be prevented from leaking and entering the water cylinder, and the service life of the sealing ring of the water cylinder is prolonged; and the water cylinder has a single-piston structure and is provided with a built-in displacement sensor, so that the straightening height and forming height of the capsule can be accurately controlled.

The invention discloses a rotor speed / position detection method for an aeronautical switch reluctance starter / generator. A switched reluctance motor with the same number of poles as the stator and rotor teeth is coaxially installed on the aeronautical switch reluctance starter / generator. The position detector is a coaxially installed switched reluctance position detector. The position detector injects high-frequency and low-voltage pulses and performs digital low-pass filtering on the phase current to realize the estimation of the per-unit value of the inductance of each phase, so that the phase current can be estimated by using the The corresponding relationship between the inductance and the rotor position angle is used to obtain the rotor position signal, which provides accurate and reliable position and speed information for the aviation switched reluctance starter / generator. It can adapt to harsh operating environments such as high temperature, high speed and oil pollution, and has extremely high detection accuracy and reliability. The detection system is simple in structure, strong and safe, and low in cost. Position detection of generators at high temperature and high speed.