32results about How to "Automate Calibration" patented technology

An apparatus and method for measuring the key elements of human primary health is disclosed. The apparatus is in the form of a medical diagnostics unit capable of measuring Electrocardiogram (ECG), height, weight, body mass index (BMI), body temperature, hearing efficiency, lung function, pulse, blood oxygen levels, blood pressure, urology and vision testing. The medical diagnostics unit includes an enclosure with a data card and/or fingerprint entry. The enclosure includes medical measuring devices which allow a patient to follow instructions on a touch screen visual display unit to conduct the desired tests and obtain the patient's health information. This information is stored locally as well as being transmitted to a doctor for review and evaluation. The automated medical diagnostics unit reduces the staffing requirements to obtain a patient's basic health information.

The invention discloses a radio frequency equipment calibration method. The calibration method is applied to a calibration device, radio frequency equipment, a frequency spectrograph and a signal source; the calibration device is connected with the radio frequency equipment, the frequency spectrograph and the signal source through a cable, the radio frequency equipment is respectively connected with the frequency spectrograph and the signal source. The automatic calibration of each of frequency, power and power gain of the radio frequency equipment is realized through a calibration instruction preset by the calibration device and a feedback instruction preset by the radio frequency equipment, and the calibration efficiency and precision are improved.

The invention discloses an analog quantity conditioning and distributing device with high precision and all-digital calibration, which comprises an instrumentation amplifier, an isolation amplifier, a verification module and an output drive module, wherein the instrumentation amplifier is used for receiving and treating field signals; the isolation amplifier is used for receiving the field signals processed by the instrumentation amplifier and then performing isolation output on the field signals; the verification module is used for receiving and verifying the signals output by the isolation amplifier; the output drive module is used for receiving the signals from the verification module and outputting the signals to a corresponding system; the verification module is connected with a general calibration device which is used for verifying the field signals output by the verification module; the general calibration device comprises an upper computer controlling the verification process and a calibration instrument controlled by the upper computer to generate standard voltage and current signals and transferring the standard voltage and current signals to the verification module; the upper computer is connected with the verification module through an SPI (serial peripheral interface); and the output drive module is connected with the calibration instrument. According to the invention, a digital potentiometer is adopted to replace a mechanical potentiometer, and the digital potentiometer is operated to change value of resistance through the SPI, so that detuning and linear error of the analog quantity conditioning and distributing device can be eliminated.

The invention discloses an automatic calibration system and method for an analog input module of a nuclear-safety DCS. The automatic calibration system and method are implemented by the adoption of programmable instrument calibration equipment, wherein the programmable instrument calibration equipment comprises an upper computer, a high-precision signal generator and a multi-way switch; and the upper computer sends a command to the high-precision signal generator and controls the high-precision signal generator to generate a current signal, and the current signal is selected by the multi-way switch and output to a collection channel of the analog input module for calibration of a data collection channel and a self-diagnosis channel. According to the automatic calibration system and method,data collection channel calibration, self-diagnosis calibration and multichannel calibration of the analog input module of the nuclear-safety DCS are automatically realized only through arrangement of the programmable instrument calibration equipment; the coverage is wide, calibration of the data collection channel and the self-diagnosis channel can be realized simultaneously, and reliability andsafety are improved; and beside, the whole calibration process is automatically implemented through software, manual intervention is not needed, calibration of multiple channels can be realized simultaneously, and efficiency is high.

The embodiment of the invention provides a flash memory chip testing method and system and relates to the field of chip testing technology. The method comprises the steps that a calibration device interface board is connected with a PMU (Parametric Measurement Unit); the PMU is connected with a PC; the calibration device interface board is replaced with a flash memory chip interface board at the same position; the PMU receives a first output instruction sent by the PC; the PMU supplies a stable first initial power source to the calibration device interface board; the PMU tests a first test voltage and a first test current corresponding to a calibration device at the same time; the PMU feeds the first test voltage and the first test current back to the PC; the PC configures a first calibration parameter; and then the PMU is calibrated. Since the calibration device interface board is replaced with the flash memory chip interface board at the same position for testing of a flash memory chip, automatic calibration can be realized, meanwhile, a calibration line is consistent with an actual test line, and the measurement precision of the flash memory chip is improved.

The invention discloses a test system and method, and relates to the field of power system secondary device testing. The system comprises test master station software and test device hardware. The test device hardware specifically comprises an Ethernet communication module group, an analog quantity output module, an analog quantity recovery module, a switching value input module, a switching value output module, a CPU module and an FPGA module. The analog quantity output precision is improved through the analog quantity recovery module, the precision of an alternating current standard current source is achieved, the function of a standard meter is achieved, the measurement function of a protection measurement and control device can be detected, and the alternating current standard current source and the standard meter do not need to be additionally arranged; according to the test device, the protection and measurement function performance of the protection measurement and control device and the function performance of the power distribution automation terminal are detected. High-precision source output, high-precision wave recording and high-precision meter monitoring are provided, system wiring is simplified, the manufacturing cost is reduced, and use is convenient.

The invention discloses a method and apparatus for calibrating a proximity sensor. The method includes the steps of moving a baffle disposed facing a proximity sensor to a position where the distancefrom the proximity sensor is greater than a first distance threshold; obtaining a first distance parameter obtained by the proximity sensor; comparing the obtained first distance parameter with a preset noise floor threshold; in the case where the first distance parameter is smaller than the noise floor threshold, moving the baffle to a second distance threshold, the second distance threshold being smaller than the first distance threshold; obtaining a second distance parameter measured by the proximity sensor; and comparing the obtained second distance parameter with the first distance parameter; and in the case where the second distance parameter is greater than the first distance parameter, determining the proximity sensor as a good product. According to one embodiment of the invention,the calibration speed and accuracy of the proximity sensor are improved.

The invention relates to the field of atmospheric environment air quality monitoring, in particular to a cloud platform intelligent auxiliary calibration algorithm applied to a gridding air quality monitoring system, and the algorithm comprises the following steps: historical data acquisition: selecting a plurality of monitoring devices near to-be-calibrated devices as reference devices through a cloud platform, meanwhile, historical data of the reference equipment within 7 days are called; counting background concentration, using probability statistics to count a pollutant concentration probability density function of the reference equipment every 3 hours within 7 days, selecting the concentration with the maximum occurrence probability as the background concentration of the equipment, and calculating the background concentration probability variance of the reference equipment within the same time; and selecting proper pollutant concentration according to the concentration probability variance to establish a regional background concentration set within 7 days. The method is a calibration scheme supported by data fusion, has the advantages of being simple in process, accurate, reliable and capable of being deeply fused with a cloud platform, and can save a large amount of manpower and material resource cost.

The invention discloses an elevator guide rail straightness measurement and automatic calibration device which comprises a guide rail range finder and a calibration mechanical arm, the guide rail range finder and the calibration mechanical arm are arranged in an elevator shaft, a guide rail support and a shaft construction platform are arranged in the elevator shaft, and a guide rail is installed in the elevator shaft through the guide rail support. A platform main beam is arranged on the hoistway construction platform, the calibration mechanical arm is installed on the platform main beam, and the hoistway construction platform can be pulled by power in the Z direction and guided to ascend and descend to any construction position of a hoistway through a guide rail. The calibration mechanical arm comprises a lower support, a wall supporting main module, a left-right adjusting module, a front-back adjusting module and a clamping module, the lower support comprises a fixed telescopic rod and two opposite connecting beam assemblies, and the connecting beam assemblies are connected with a shaft construction platform main beam and each comprise a hinge part connected with the wall supporting main module. The wall supporting main module comprises a wall supporting module and a plurality of lengthening rods, and the clamping module comprises a clamping executing mechanism, a clamping driving mechanism and a clamping block.

The invention discloses a remote laser light path calibration system and method based on machine vision, and the system comprises a laser, a target surface, a camera, a steering engine, and a first adjustment control module which is used for obtaining the position of a light spot and the error between the light spot and the center of the target surface; the second adjusting control module is used for adjusting the position of the laser through an error control steering engine; a laser spot is generated through a laser and is presented on a target surface, a camera is arranged on the side, away from the laser, of the target surface, the camera collects a spot image on the target surface, and the laser is fixed to a steering engine. Thus, the machine vision technology is adopted, error data are calculated through an algorithm, then the steering engine is controlled through the single chip microcomputer, the position of the laser device can be automatically adjusted, the laser device irradiates the target position, and the laser device has the advantages of being wider in application range, lower in cost, higher in automation degree and higher in precision.

The invention discloses an indoor image type plumb aligner calibration device. The device comprises an image processing system and a working base, a working platform is arranged on the working base, asupporting frame is arranged on the working base, a two-dimensional inclined platform for bearing a plumb aligner to be calibrated is fixed on the supporting frame, a supporting arm which is integrally formed with the base is arranged beside the working base, the supporting arm is fixedly connected with a collimator arranged in the vertical direction, an objective lens end of the collimator is downwards aligned with the position of an upward plumb line emitted by the plumb aligner to be calibrated, a first image shooting device is arranged on the collimator, the first image shooting device isused for shooting a reticle of the collimator and an image on the reticle, and the first image shooting device is in signal connection with the image processing system. Thus, the indoor image type plumb aligner calibration device is convenient to operate and use, high in calibration speed and high in accuracy and meets specification requirements.

The invention discloses a speedometer system error calibration method and device, and relates to the field of robot motion control. One specific embodiment of the method comprises the following steps: constructing a system error model, wherein the system error model indicates a wheel diameter error coefficient and a wheel distance error coefficient; obtaining real-time motion information of the mobile robot in open-loop motion, wherein the open-loop motion comprises open-loop linear motion and open-loop in-situ rotation motion; determining odometer offset data of the mobile robot in the open-loop motion according to the real-time motion information; and determining an expression of the system error according to the system error model and the odometer offset data so as to realize calibration of the odometer system error. According to the embodiment, the technical problems that in an existing calibration method, the accuracy is difficult to guarantee, and automatic calibration cannot be achieved are solved, and then the technical effects that the influence of absolute pose sensor installation errors on calibration can be avoided, calibration automation can be achieved, and large-scale industrial application can be conducted are achieved.

The invention provides a head-up display combination instrument assembly precision rapid calibration terminal. The terminal comprises a combination instrument positioning device, a standard graph generation unit, a graph projection unit, a data processing and transmission unit and an image acquisition unit. According to the head-up display combination instrument assembly precision rapid calibration terminal provided by the invention, automatic acquisition and calculation of projection pictures are completed by adopting an image acquisition and image processing technology, the acquisition efficiency, precision and calculation accuracy are improved, and human errors are prevented from being introduced; the position of the combination instrument is automatically controlled by adopting standard combination instrument position parameters, and installation errors are prevented from being introduced.