38results about How to "Avoid false readings" patented technology

The present invention relates to devices for detection of active atheromatous plaque and/or thin-capped fibro-atheroma ("vulnerable plaque") using selectively targeted radiolabeled compositions, such as beta-emitting compositions.

A leak in a membrane on top of a horizontal roof deck is located by applying conductive wires on the membrane underneath the aggregate in a grid pattern. A measuring and switching circuit generates voltage having a positive attached to the roof deck and a negative attached to the wires. The circuit has a relay for each wire which can be switched between a current sensor system and the negative potential. The sensor system is arranged to sense at each of the wires in turn the current flowing from the roof deck through any leak in the membrane to the wire. A micro-processor operates the relays in turn to connect all the other wires to the negative as a shield while each wire is sensed. From the output of the grid the changes in current in the x and y directions are analyzed to locate the leak in the membrane.

In a semiconductor storage device including a transistor for reading port, undesired voltage decrease may occur in a bit line in a reading operation due to a leak current from the transistor for reading port of a memory cell, which may cause a reading error. A semiconductor storage device according to one aspect of the present invention includes a third transistor having one of a source and a drain connected to a first bit line and switching supply of a ground voltage performed on the first bit line in accordance with a value held in a memory cell according to selection and non-selection of the memory cell, and a fixed voltage keeping circuit keeping a potential of the other of the source and the drain of the third transistor to a fixed potential in a memory cell non-selected state in a six-transistor SRAM.

An optical sensor for detecting hydrogen in a fluid in physical contact with the sensor is provided. The sensor includes an optical fiber, wherein an end portion of the optical fiber is coated with a multilayer including: a sensing layer, including a film of an alloy, the alloy including Mg, Ni, and M, wherein M is at least one of Zr, Ta, and Hf, and wherein the alloy has the composition Mg_xNi_yM_z, and wherein x is from 40 to 60, y is from 10 to 40, and z is from 10 to 40, and a catalyst layer including Pd. Further, a detection system for hydrogen, including such an optical sensor, and an electrical device having such a detection system are provided.

A method and device to predict ovulation in a female human by measuring changes in the concentration of a number of ions in eccrine sweat is disclosed. The concentration, or changes in concentration, of one or more ions are determined throughout the day and analyzed against predetermined patterns in order to predict ovulation one to five days in advance. This permits the user to more accurately determine commencement of the fertile phase, which for female humans is generally considered to be about four days prior to ovulation to one day after ovulation. The concentration of the ions measured include sodium (Na+), potassium (K+), ammonium (NH₄+), calcium (Ca₂+), chloride (Cl−) and nitrate (NO₃−). To further increase the accuracy of the reading, a large number of readings can be obtained throughout a day and statistically analyzed to determine the change over time. In addition, the concentration of two or more ions can be obtained to increase accuracy. Ratiometric measurements between two or more ions can be determined to increase accuracy and account for ion accumulation on the skin. Ratiometric measurements between ammonium (NH₄+) and calcium (Ca₂+) have been found to provide more distinct patterns because the concentration of these two ions change in opposite directions during the relevant period preceding ovulation.

The invention discloses a mobile tag detection method based on a radio frequency identification system, which belongs to the technical field of mobile tag detection methods and overcomes the defects in the prior art. The technical problem to be solved is to provide the mobile tag detection method based on the radio frequency identification system. The technical scheme adopted by the invention is that the method comprises the following steps that a machine learning algorithm is designed to predict a mobile tag detection model, the model establishment process mainly comprises three parts, the first part is to extract three input characteristics, namely tag distribution, mobile tag speed and tag distance reader antenna distance, and the second part is to train a proposed SVM model; and the third part is used for testing the SVM model prediction mobile RFID tag. The method is suitable for the field of mobile tag detection.

A method and apparatus are disclosed for determining a condition at an item of media container. The method includes the steps of locating a suction element at a pick up region of a container, selectively connecting a source of negative pressure to the suction element, determining a pressure at the suction element, and determining a condition of the container responsive to the determined pressure.

The invention discloses a diameter measurement device based on a cut ruler, and the device comprises a cut ruler (1), a straight ruler and a protractor (4). A first end part of the straight ruler is connected with a hinge point of the cut ruler (1), and a second end part of the straight ruler is used for making contact with the surface of a detected object. The detected object is cylindrical, andtwo arms of the cut ruler (1) are opened to clamp the detected object. The second end of the straight ruler makes contact with the surface of the detected object. The diameter Phi of the detected object is calculated based on the length of the straight ruler and the opening angle, measured by the protractor (4), of the cut ruler (1). The device is compact in structure, is easy to implement, and can achieve the automatic measurement of the diameter.

An apparatus and method for processing Hsync and Vsync signals in graphic controllers to avoid a false reading of pulses caused by glitches. The apparatus and method involve detecting when the synch signal crosses the threshold for the first time. When this occurs, the output of the detection circuit is held for the predetermined period of time, even if subsequent transitions across threshold occur during this period. After the predetermined period expires, the output is released and may assume the same state as the input sync signal at that time. In this manner, a misinterpretation of the resolution format caused by the reading of a “false” pulse caused by a glitch on a sync signal can be avoided.

The invention discloses an automatic instrument identification method and system, and belongs to the technical field of image processing, and the method comprises the steps of collecting an image of an instrument; carrying out distortion correction on the image; acquiring the circle center of a dial plate in the image; obtaining a pointer position based on a Hough transform, circumferential template matching or radius gray scale matching method; positioning the scale marks of the dial plate to obtain the positions of the scale marks; obtaining the measuring range of the instrument; and calculating instrument readings according to the pointer, the circle center, the measuring range and the scale marks. Through the image processing technology of machine vision, the circle center, the pointer, the measuring range and the scale marks of the instrument are recognized, and the count of the instrument is calculated to replace manual counting, so that the recognition efficiency and accuracy are improved, and manpower and material resources are saved; and a reading error caused by an instrument template matching error is avoided.

The invention discloses a multifunctional drawing pen, and aims to provide a multifunctional drawing pen which is diversified in function and simple to operate. Comprising a pen holder, a sliding groove is formed in one end of the pen holder, a pen body is rotationally connected into the sliding groove, the pen body is slidably connected with the sliding groove, a scale groove is formed in one side wall of the sliding groove and communicated with the sliding groove, and a pointer is connected to one side face of the pen body and penetrates through the sliding groove to be slidably connected with the scale groove. And an angle indicating dial is arranged at the other end of the pen holder and is connected with an angle indicating device playing a positioning role. The multifunctional pen has the advantages that the pen body drives the pointer to slide, the length can be measured, and meanwhile a straight line with a fixed distance, an arc line with a fixed angle and a circle with a fixed diameter can be drawn; reading is convenient to observe; when a circle or an arc is drawn, after the positioning pointer completes positioning, the angle pointer is matched with the angle indicating dial to complete drawing; the auxiliary pointer can assist the positioning pointer in positioning, and angle reading errors are avoided; the operation is simple.

The invention discloses a blade ejector measuring tool, which belongs to the technical field of die & mold standard part detection devices. The upper end of a tooling body is provided with a clampinggroove along a length direction; two sides of the clamping groove are provided with limiting bulges respectively; the clamping groove is internally clamped with a round bar section gauge block and multiple flat section gauge blocks sequentially from left to right; and lower ends of the round bar section gauge block and each flat section gauge block are fixed on the tooling body through multiple fastening screws. The multiple flat section gauge blocks are arranged to detect the flat section of the blade ejector, the round bar section gauge block is arranged to detect the round bar of the bladeejector, the operation is simple, and the detection efficiency is high; and during the detection process, no dial meter and no micrometer is needed, and the measurement error problem caused by error reading of the detection tool or other human factors can be further avoided.

The invention provides a method for realizing automatic calibration of a PLC analog input/output module channel. According to the technical scheme, a process instrument, a switch matrix, an analog input/output module, M channels and an upper computer are included. And the upper computer issues configuration to the process instrument, reads data, issues configuration to the switch matrix, and receives calibration results of each channel of the analog quantity input/output module. The upper computer evaluates the calibration progress of each channel according to the calibration result of the analog quantity input/output module and the read data of the process instrument, and outputs corresponding issuing configuration according to the progress, so that the process instrument adjusts the analog quantity signal output/measured by the process instrument, and the switch matrix adjusts the communication path of the process instrument; and further enabling the analog input/output module to continue to execute the calibration program until all channels of the module are calibrated. According to the invention, wiring errors, key errors and reading errors possibly caused by manual operation can be avoided; the influence of different contact effects caused by manual plugging each time on the channel calibration effect can be reduced; the deviation of channel calibration caused by reading when the system state is not stable can be reduced; the multi-channel calibration efficiency of the analog input/output module can be improved.

The invention discloses a prepaid gas reading method. The method comprises the following steps: acquiring user information and system information; reading the relevant user information and system information: firstly, different reading intervals are adopted according to different periods: if the user balance before deduction is smaller than 0, reading is not conducted and a gas supply valve is closed, and reading is conducted if the user balance before deduction is larger than 0; secondly, automatic error correction is conducted, the previous reading is retained for comparison with the currentreading, and the current reading is discarded when the difference is much larger than the normal daily amount or the difference is negative; updating the user balance before deduction and conductingjudgement according to current system time: the next reading interval is the busy reading interval in the busy period, and the next reading interval is the leisure reading interval in the leisure period. According to the method, different reading intervals are adopted according to different busy or leisure periods, reading and deduction scientificity and accuracy are improved, and the risk of users' malicious arrearage is reduced in combination with a prepayment method.