32results about How to "Increase precision value" patented technology

A CPU (134) of a body composition measuring apparatus (100) drives a navel position indicator (118) so that it emits light. The height of a frame (114) is adjusted so that a beam of light from navel position indicator (118) irradiates the navel of a human subject. Plural sensors (106) are mounted on the frame (114), and each sensor measures a distance from the sensor to a position to be measured, whereby the abdominal width (X) of the human subject is determined. Subsequently, CPU (134) obtains measured values of weight (W) and bioelectrical impedance (Z). CPU (134) then reads an equation for calculating the visceral fat area and estimates the visceral fat area (Y) based on the measured abdominal width (X), weight (W), bioelectrical impedance (Z), and the equation.

The invention relates to a method for improving optic loading imaging quality, in particular to the method for using a multistage vibration isolation platform to improve the optic loading imaging quality, and belongs to the field of high-frequency vibration control. The vibration isolation platform comprises an upper platform, a lower platform and a support rod for connecting the upper platform and the lower platform. The vibration isolation platform can be installed on a flywheel or a control moment spinning top and the like between a satellite actuating mechanism and a satellite star or between an optic payload and the satellite star. The control moment spinning top, an installation support and the upper platform of the vibration isolation platform jointly form an upper platform system. When the optic payload and the satellite star are needed for loading the vibration isolation platform, a base of the optic payload is fixedly connected with the upper platform of the vibration isolation platform to form a set of the upper platform system. The lower platforms of all vibration isolation platforms are fixedly connected onto the satellite star to jointly form a lower platform system. The method solves the problem that imaging accuracy and stability of the optic payload on a star are low.

An image processing method and system is provided for reducing the quantization layer in an input quantized image. The system detects if a pixel in a quantized input image belongs to a ramp area in a selected direction. Based on such ramp detection, a quantization level is dynamically selected. Then, a pre-segmentation operation is performed on a smoothly changing image area for each pixel in that direction. That area can then be refined by segmentation. A low-pass filtering process can then be applied to the refined segment to obtain filtered pixels. An overall gain value is then determined and used to adjust the filtered pixel luminance values to obtain output luminance values with higher precision values than that of the input image luminance values. This provides an output video image with reduced quantization layer and less perceivable quantization artifacts.

A method for providing traffic telematics information about the travel route of a vehicle traveling on a road system having multiple roads interconnected between road junctions includes: determining a probability of the vehicle approaching a road junction and assigning the probability to the respective road junction, and transmitting information regarding the road junctions for which the probability of being driven through is above a specified threshold.

The invention relates to the field of physical geography magnetic method explosion, which is used for analyzing and calibrating a three-component magnetometer produced by factories and substantially improving the measured actual value after being corrected. By the method, a plurality of data in a uniform magnetic field are measured first and need to meet the requirement for calculating the deviations of installation angles of various elements at high precision. After calculating various deviation angles, a gravity magnetic component value measured in the actual detection is directly corrected into a measuring result with high precision on a computer by using the deviation angle with high precision. The method improves the magnetic measuring precision and ensures that the magnetic measuring precision of the three-component magnetometer is improved to 10-30nT.

The invention relates to a distance measuring device for debugging of an emergency lock system of an aircraft canopy. The distance measuring device comprises a fixed head, a distance measuring head, a screw rod with a gap, a locking nut and scale marks, the end of the fixing head is oblate, and a hole is formed in the middle of the fixing head so that the fixing head can be fixedly connected with an emergency lock of peripheral equipment through a fixing pin. The end of the distance measuring head is oblate, and a hole is formed in the middle so that the distance measuring head can be fixedly connected with the transmission mechanism through a fixing pin; the screw rod with the gap is arranged at the root of the distance measuring head, and the scale marks are manufactured at the gap of the screw rod; and the locking nut is installed on the screw rod with the gap. The center distance between the mounting hole of the emergency lock and the mounting hole of the transmission mechanism is measured and directly read by adjusting the total length of the distance measuring device, and the pull rod is manufactured according to the size, so that main technical parameters such as unlocking stroke of the emergency lock system can meet requirements, the emergency lock system can normally work, and the device is simple and quick to operate.

Embodiments of the invention provide an ultrasonic signal treatment method and apparatus. The ultrasound signal treatment method comprises the following steps: performing iterating on a first iteration variable A<m>(n) and a second iteration variable a<m>(n) according to a size relationship between an initialized first iteration variable A<m>(0) and an initialized first intermediate variable B<m>(0), determining a delay time k<m>(n) of an echo signal of an ultrasonic signal emitted by an array element m to different detection distances, performing interpolating on the first iteration variableA<m>(n), and performing correcting on a delay time k<m>(n+1) respectively according to size relationships between interpolation variables shown in the specification and a first intermediate variable B<m>(n). The embodiments can realize reduction of a calculation amount required for delay calculation in a wave beam synthesis process, can improve an accuracy value of the delay calculation, and improves wave beam synthesis quality.

The invention discloses a preparation method of pear dietary fiber. According to the preparation method, the problems of low utilization rate of pear residue raw materials, high processing cost, low product yield and the like are solved, a three-phase preparation separation technology is utilized to simultaneously decolor and deproteinize, the method is high in efficiency and short-time, the prepared pear residue dietary fiber has the advantages of small particle size, good color, strong water holding capacity and swelling capacity and good activity, the obtained soluble dietary fiber can be used as a food additive of beverages, biscuits, bread, noodles, pastries, ice cream, instant coffee, chocolate or milk tablets, or can be prepared into tablets, capsules or granules, the obtained insoluble dietary fiber can be used for making dietary fiber biscuits, bread, noodles or pastries, or can be prepared into tablets, capsules or granules, and the obtained soluble dietary fiber can be mixed with the insoluble dietary fiber to prepare tablets, capsules or granules.

The invention discloses the molding equipment automatic reset calibration device of a pulp molding product. The device comprises a forming machine and a grating ruler body. The forming machine comprises a machine tool bed. The top of the machine tool bed is provided with a first station, a second station and a third station. The first station, the second station and the third station are movably provided with one reciprocating work bench. The front and rear sides of the reciprocating work bench are provided with driving mechanisms. The grating ruler body comprises a scale grating and a gratingreading head. Based on the accuracy of existing machine bench equipment, the technical grafting of a grating ruler is combined, and program control is cooperated to complete the slave signal induction of the device, a control system is fed back, program calculation compensation is performed, an instruction is transmitted to a servo motor, and a screw rod is driven to compensate an offset value soas to realize the positioning setting accuracy value of a workbench. The device can acquire a high precision value and a modular fixture on a cooperation device can have a good service life cycle.

The invention relates to an RFID label number estimation system and method, in particular to an RFID label number estimation system and method based on a virtual vector Aloha protocol. The objective of the invention is to solve the problems of high resource demand, low query speed, high computing resource overhead and high time complexity of an existing RFID cardinal number estimation protocol, and low estimation accuracy of the number of target labels in an RFID system. The RFID label number estimation system based on the virtual vector Aloha protocol comprises a virtual vector generation module based on the Aloha protocol, a vector analysis and probability estimation execution module, a single reader polling module and a result processing module. And the virtual vector generation modulebased on the Aloha protocol is used for generating an expected vector of the target label set and collecting a response vector for obtaining a response. The method is applied to the field of RFID label number estimation.