47 results about "Oxygen Measurement" patented technology

The invention relates to the technical field of blood oxygen monitoring and early warning, in particular to a blood oxygen saturation monitoring and early warning system and method based on an oximeter. The method comprises the following steps: determining physiological information in two states by analyzing historical bracelet data of a user in a motion state and a resting state, screening out a body part which is most suitable for detection of an oximeter based on a measurement position difference for data acquisition, then calculating a recovery speed of blood oxygen fluctuation of the user, simulating a blood oxygen fluctuation range according to the recovery speed, and calculating the recovery speed of the blood oxygen fluctuation of the user. Therefore, a reasonable interval of blood oxygen change is determined, finally, the interval serves as an early warning reference, an abnormal alarm is triggered when the real-time blood oxygen data exceed a set range, and accurate and dynamic blood oxygen monitoring and health management are achieved. According to the method, the blood oxygen measurement position is optimized by analyzing motion and resting data, a dynamic early warning interval is established in combination with a fluctuation rule, and accurate blood oxygen abnormity monitoring and early warning are achieved.

The invention belongs to the technical field of oxygen content detection and dynamic calibration, and particularly relates to a dynamic calibration method for the oxygen content in a boiler air and flue gas system. The method comprises the steps of multi-working-condition data acquisition and standardization processing, failure feature extraction and feature library establishment, reference oxygen calculation model construction, data driving model construction, anomaly detection and calibration, parameter self-updating and the like, and a calibration effect real-time evaluation link is newly added. The core of the method is that a mechanism + data dual-drive mode is adopted, a reference model is constructed on the basis of a zirconia sensor Nernst equation, an improved bidirectional LSTM network is fused to construct a data drive model, and an adaptive threshold algorithm and a multi-stage calibration strategy are combined to realize accurate recognition and dynamic calibration of abnormal signals. The method is adaptive to a complex flue gas environment and a variable load operation scene, the oxygen content measurement precision is remarkably improved, low-nitrogen combustion and environmental protection compliance are guaranteed, coal consumption and operation cost are reduced, and reliable data support is provided for intelligent power plant digital transformation.

The present invention relates to a breathing device (2) comprising: an air inlet (10) designed to supply ambient air to the breathing device (2); an oxygen inlet (8) designed to supply oxygen to the breathing device (2); a mixing section (34) designed to receive ambient air from the air inlet (10) and oxygen from the oxygen inlet (8), mix the ambient air and oxygen, and output oxygen-enriched air as a ventilation airflow into a ventilation airflow path (39); an oxygen regulating valve (30) disposed between the oxygen inlet (8) and the mixing section (34) and enabling regulation of the flow rate of oxygen entering the mixing section (34) from the oxygen inlet (8); and an integrated combined sensor (60) designed to measure the thermal conductivity, pressure, temperature, and humidity of the ventilation airflow downstream of the mixing section (34), and to determine the oxygen content of the ventilation airflow based on the measured pressure, measured temperature, and measured humidity, and to provide the oxygen content as a measurement result. The breathing device (2) also has a monitoring device (66) which is designed to: receive measurement results provided by oxygen measuring devices (32, 40a, 40b), ventilation gas pressure sensor (45), ventilation gas temperature sensor (42) and / or ventilation gas humidity sensor (43) and integrated combination sensor (60); compare the measurement result of the oxygen content in the ventilation flow received from the integrated combination sensor (60) with a predefined oxygen content in the ventilation flow; and control the oxygen regulating valve (30) to regulate the oxygen content in the ventilation flow if the measurement result of the oxygen content in the ventilation flow received from the integrated combination sensor (60) is different from the predefined oxygen content in the ventilation flow.

The utility model provides an underwater oxygen measuring device which comprises a first shell and a second shell, the first shell is in threaded fit with the second shell, a waterproof breathable film and an erecting platform are arranged in the first shell, the waterproof breathable film is arranged on one side of the first shell, and the erecting platform is arranged on the other side of the first shell. The erecting platform is arranged in the middle of the first shell, an oxygen measuring instrument is arranged on the erecting platform, a platform sealing gasket is arranged between the oxygen measuring instrument and the erecting platform, and a temperature sensor is arranged at one end of the oxygen measuring instrument; by adopting the spherical shell, stress is more balanced, water pressure can be effectively borne, and devices in the shell are protected; and the threads and the polytetrafluoroethylene sealing gasket are adopted, so that the sealing performance can be kept while the water pressure is effectively borne.

A wearable device with a blood oxygen measurement function, comprising: at least one light source, configured to emit light; an optical sensor, configured to sense an optical signal generated according to reflected light of the light; a pressure sensor, configured to sense a pressure provided by a user wearing the wearable device; a processing circuit, configured to calibrate the optical signal to generate a calibrated optical signal, and configured to compute a blood oxygen level according to the calibrated optical signal; and a pressure adjusting structure, configured to adjust an internal wearing space of the wearable device, wherein the pressure changes corresponding to the internal wearing space. A blood oxygen measurement method which the wearable device can use is also disclosed. Thereby the optical signal may be calibrated corresponding to the state of the wearable device. By this way, the blood oxygen measurement may be more accurate.

The utility model relates to a garbage incinerator oxygen supply device which comprises a blending assembly, an oxygen measuring sensor and a control system, the oxygen measuring sensor is electrically connected with the control system, the control system is electrically connected with the blending assembly, the oxygen measuring sensor comprises a shell, a filtering part and a detecting element, and the shell is provided with a detecting channel; the filtering part and the detection element are both located in the detection channel, the detection channel is provided with a detection opening, the detection opening is exposed to the outside of the garbage incinerator oxygen supply device, and the filtering part is located between the detection opening and the detection element; the garbage incinerator oxygen supply device comprises a moving part, a cleaning part and a driving assembly used for driving the moving part to move, the moving part is slidably connected to the shell in the direction from the detection element to the filtering part, the cleaning part is connected with the moving part, and the cleaning part is used for penetrating through filtering holes of the filtering part. The oxygen measurement sensor has the effect that an operator can conveniently clean the filtering part, so that the detection precision of the oxygen measurement sensor is improved.

This invention provides an interventional guidewire device for measuring intravascular oxygen saturation, belonging to the field of interventional surgical medical device technology. The guidewire device includes a guidewire body, a first oxygen measurement unit, and a second oxygen measurement unit. The guidewire body has a filamentous structure with a distal end and a proximal end. The first oxygen measurement unit is positioned at a predetermined distance from the distal end of the guidewire body and is used to measure oxygenation data at the distal end of the thrombus. The second oxygen measurement unit is positioned proximal to the first oxygen measurement unit and spaced at a predetermined distance from it, and is used to measure oxygenation data at the proximal end of the thrombus. During operation, the distal end of the guidewire body passes through the thrombus, with the first oxygen measurement unit positioned at the distal end of the thrombus and the second oxygen measurement unit positioned at the proximal end of the thrombus to measure oxygenation data at both ends of the thrombus. This invention primarily addresses the technical problem in existing technologies where it is impossible to assess oxygenation levels at the proximal and posterior ends of the thrombus before mechanical thrombectomy.

The invention discloses a wearable device with a blood oxygen measuring function and a blood oxygen measuring method, and the wearable device comprises a light source which is used for emitting light; an optical sensor for sensing an optical signal generated according to a reflected light of the light; the pressure sensor is used for sensing the pressure provided by a user wearing the wearable device; a processing circuit for correcting the optical signal to generate a corrected optical signal and for calculating a blood oxygen level according to the corrected optical signal; the pressure adjusting structure is used for adjusting the internal wearing space of the wearable device, and the pressure is changed along with the change of the internal wearing space. Therefore, the optical signal can be adjusted corresponding to the state of the wearable device, so that the blood oxygen measurement is more accurate.

The invention discloses an optical dissolved oxygen measurement system and method, and belongs to the technical field of measurement of dissolved oxygen in a water body. The system comprises a front-end detection assembly and a circuit module. The front-end detection assembly comprises double sensitive membranes which are exposed to a to-be-detected water body and are adaptive to different concentrations; the double excitation light sources excite the corresponding sensitive films to generate fluorescence; the fluorescence receiving unit receives the fluorescence and converts the fluorescence into an electric signal; the reference light receiving unit is used for receiving scattered light of the double excitation light sources and converting the scattered light into electric signals; the temperature sensor is used for collecting water temperature. The circuit module comprises a variable light intensity driving unit for adjusting the excitation light intensity; the signal conditioning unit is used for carrying out amplification, filtering and analog-to-digital conversion on the electric signal; and the signal processing unit is used for inverting the dissolved oxygen concentration by controlling a sampling time sequence, shifting a sequence by 90 degrees, shifting phases, calculating a phase difference through a digital orthogonal phase-locking amplification algorithm and combining temperature compensation. The optical dissolved oxygen measurement system and method provided by the invention can realize high-precision stable measurement of dissolved oxygen in a wide concentration range.

The utility model relates to the field of oxygen measurement, and discloses an oxygen concentration measuring device with a filtering function, which comprises a filtering valve seat, a filter and an oxygen sensor, and the filtering valve seat is provided with an air inlet and a first airflow channel; an inlet of the filter is communicated with the air inlet; and an inlet of the oxygen sensor is communicated with an outlet of the filter through the first airflow channel. The device has the beneficial effects that the filter is arranged to filter moisture and other impurities in the reflow furnace, so that the filtered airflow enters the first airflow channel from the outlet of the filter and then enters the oxygen sensor from the first airflow channel for oxygen content detection; moisture and other impurities in the reflow furnace are prevented from entering the oxygen sensor, and the quality and the service life of the oxygen sensor are ensured.

The invention provides a blood oxygen simulation method and system, electronic equipment and a storage medium, and relates to the technical field of blood oxygen measurement, the blood oxygen simulation method comprises the following steps: acquiring an initial light signal of blood oxygen measurement equipment, and determining a light emitting time sequence parameter of the initial light signal; according to the light-emitting time sequence parameters, advance time quantum is set, and a synchronous trigger signal is generated at a time point of the advance time quantum before the starting time by taking the starting time of the blood oxygen measuring equipment at the next light signal receiving window as a reference; in response to the synchronous trigger signal, calling preset blood oxygen model data, and generating a driving current synchronous with the light-emitting time sequence parameter in real time; the light source assembly is driven through the driving current, and analog light pulses are emitted to the blood oxygen measuring equipment. Accurate mapping from an electric signal to an optical signal is achieved, and the overall accuracy of blood oxygen simulation is remarkably improved.

The present application relates to the technical field of dissolved hydrogen and oxygen measurement, and particularly relates to a multifunctional flow cell device suitable for a hydrogen and oxygen sensor and a use method, comprising: a flow cell, comprising a cell body, the cell body is further provided with a water inlet and a water outlet; a three-way valve, comprising a near-water part, a far-water part and a side connection part, the near-water part is connected with the water inlet, the far-water part is arranged between the near-water part and the side connection part, and the far-water part is used for connecting a sampling pipeline or a drainage pipeline; a cleaning agent pool, provided with a medicament pool and a waste liquid pool, the medicament pool is connected with the water outlet, and the waste liquid pool is connected with the water inlet; a variable-diameter quick connector; and a bidirectional water pump. The variable-diameter quick connector is arranged at the water inlet and the water outlet, the specification can be quickly replaced according to the site, the size mismatching problem of the pipeline of the traditional flow cell is solved, a backwashing flow path is constructed, the sensor membrane contamination and aging problems are effectively relieved, the service life of the sensor electrode is prolonged, the personnel exposure risk is reduced, and the equipment downtime is reduced.

The present invention discloses a method for intelligently determining the timing of temperature measurement and oxygen determination during the RH refining process of ultra-low carbon steel. The method specifically comprises the following steps: (1) during the RH treatment process of the molten steel, sequentially determining the temperature measurement and oxygen determination times of the molten steel at the time of entering the station, during decarburization, before the end of decarburization, after oxygen supplementation before the end of decarburization, after the end of deoxidation, and before RH air breaking; and (2) issuing a temperature measurement and oxygen determination prompt after the temperature measurement and oxygen determination times are reached. The present invention provides a method for determining the temperature measurement and oxygen determination times during RH refining of ultra-low carbon steel, quantitatively determining the timing of temperature measurement and oxygen determination during RH refining of ultra-low carbon steel, improving the level of on-site standardized operations, and enhancing the accuracy of molten steel temperature and composition control.

The invention relates to the technical field of gas concentration detection, and provides a paramagnetic principle-based oxygen concentration detection alarm device, which comprises a shell, a gas sampling module, a paramagnetic oxygen sensor module, a signal processing module, a main control module, a power supply module, a communication module and an alarm module, the paramagnetic oxygen sensor module comprises a detection shell and a paramagnetic oxygen measuring assembly arranged in the detection shell. According to the oxygen concentration detection and alarm device based on the paramagnetic principle, all the modules are integrated on one shell, so that the oxygen concentration detection and alarm device is compact in structure, high in function integration degree and smaller in size, and follow-up installation is facilitated; through the arrangement of the paramagnetic oxygen sensor module, the oxygen concentration detection alarm device is higher in detection precision, higher in environmental adaptability and stability and longer in service life, and the pain points that a traditional oxygen detection alarm is short in service life and the failure period is difficult to predict are improved.

The present application relates to the technical field of reactor, and particularly provides a liquid heavy metal purification device, aiming at solving the problems of inaccurate oxygen concentration measurement and slow regulation speed. For the purpose, the purification device comprises a container, a heat exchange assembly, an oxygen measurement and control assembly, a filter assembly, a driving pump and a warning assembly. The heat exchange assembly is arranged in a first area of the container and used for precipitating first impurities in the liquid heavy metal. The oxygen measurement and control assembly is arranged in a second area of the container and used for measuring and regulating the oxygen concentration. The filter assembly is arranged in a third area of the container. The driving pump is arranged in a fourth area of the container. The warning assembly is arranged on the driving pump and used for warning the impurity content according to the change of the content of second impurities in the liquid heavy metal. The purification device of the present application realizes accurate measurement and rapid regulation of the oxygen concentration by using the oxygen measurement and control assembly, and realizes impurity content warning according to the change of the solubility of the second impurities by using the warning assembly, thereby effectively ensuring the safe operation of the reactor.

The invention relates to an energy-saving and environment-friendly self-pumping type oxygen measuring probe for optimizing combustion of an industrial boiler, which comprises a zirconium oxide measuring element, a stainless steel protective cover, a ceramic thermal insulation layer, a ceramic electric heater, a temperature thermocouple and the like, one end of the zirconium oxide measuring element is closed, the other end of the zirconium oxide measuring element is of an open structure, a measuring electrode and a reference electrode are arranged at corresponding positions of the inner wall and the outer wall of the middle section of the zirconium oxide measuring element, a reference gas heat convection channel and a measured gas measuring channel are arranged in the measuring system, and when gases with different oxygen concentrations pass through the inner side and the outer side of the zirconium oxide measuring element, electromotive force is generated. The ceramic filter can prevent dust and impurities in the flue gas from scouring and corroding the measuring electrode and causing aging and falling of the measuring electrode, and also has a damping effect on the measured gas, so that the flow of the reference gas and the flow of the measured gas are relatively consistent, and the standard and the requirement of the zirconium oxide oxygen measurement technology on the gas flow are met.

The invention discloses an oxygen concentration detection system and method, a storage medium and an electronic device, and relates to the technical field of smart home, the oxygen concentration detection system comprises an oxygen measurement bin, a first oxygen concentration detection sensor, a second oxygen concentration detection sensor and a processor; wherein a bottom air inlet of the oxygen measuring bin is communicated with an air outlet of the oxygen generator, the first oxygen concentration detection sensor and the second oxygen concentration detection sensor are both located in the oxygen measuring bin, and the distance between the first oxygen concentration detection sensor and the bottom air inlet of the oxygen measuring bin is smaller than a first preset threshold value; the distance between the second oxygen concentration detection sensor and the top air outlet of the oxygen measuring bin is smaller than a second preset threshold value; wherein the processor is connected with the first oxygen concentration detection sensor and the second oxygen concentration detection sensor and is used for determining the concentration of oxygen generated by the oxygen generator according to detection data of the first oxygen concentration detection sensor and detection data of the second oxygen concentration detection sensor.

A kind of calibration-free, maintenance-free zirconium oxide analyzer, including outer sleeve, fixed flange, zirconium oxide sensor, electric heater, temperature sensor, internal resistance test module, background potential test module, zirconium oxide analyzer out-of-tolerance test module and oxygen measurement calculation control module, fixed flange is sealingly fixed and installed at the end of outer sleeve, zirconium oxide sensor is coaxially arranged in outer sleeve and sealingly fixedly connected in the middle of inner end of fixed flange, electric heater is coaxially arranged between zirconium oxide sensor and outer sleeve and fixedly connected on the inner wall of outer sleeve end, temperature sensor is arranged in the inner end of zirconium oxide sensor.The present application can determine whether zirconium oxide analyzer is accurate in whole life cycle without calibration and maintenance, solve the problem that current zirconium oxide analyzer needs frequent calibration, reduce maintenance cost, and is maintenance-free in whole life cycle of zirconium oxide analyzer.

1. The name of the design product: heart rate and blood oxygen measurement dynamic graphical user interface of electronic device and its heart rate and blood oxygen measurement module. 2. The use of the design product: the design product is used in an electronic device. 3. The design points of the design product: the graphical user interface. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the interface is mainly used for the interactive interface of heart rate and blood oxygen measurement; the local appearance of the interface is used for the heart rate and blood oxygen measurement module. Design 1 front view is an initial interface of the device detecting that the user measures heart rate and blood oxygen (such as the user correctly placing the sensing finger on the relevant sensor), and the interface changes from design 1 front view interface to design 1 interface change state diagram 1 after entering the heart rate and blood oxygen measurement state, and then changes dynamically and cyclically in design 1 interface change state diagram 1-18, and design 1 front view interface and design 1 interface change state diagram 1-18 are key frame interfaces in the change process. The human-computer interaction of designs 2-4 is the same as that of design 1. 7. Other circumstances that need to be explained: designs 1-2 of the design are local appearance designs, and the appearance shown in the yellow covered area in the view is not required to be protected. The designs 2 and 4 of the claimed design require protection of color.

The present invention relates to an exhaust gas oxygen measurement device provided to measure oxygen in exhaust gas discharged from a semiconductor process and the like, and an exhaust gas oxygen measurement system having same. According to the present invention, the exhaust gas oxygen measurement system comprises an exhaust gas oxygen measurement device, and the exhaust gas oxygen measurement device comprises: a pipe connection body, which is provided on an exhaust pipe and has connection ports at both sides thereof; an oxygen measurement sensor, which is provided at a one-side connection port side of the pipe connection body so as to emit light, thereby measuring an oxygen concentration with reflected light; a reflection device provided at the other-side connection port side of the pipe connection body so as to reflect the light emitted from the oxygen measurement sensor; a protection member composed of a first protection member for protecting the oxygen measurement sensor from exhaust gas and a second protection member for protecting the reflection device; and an exhaust gas blocking member composed of a first blocking valve and a second blocking valve that are provided to open and close the connection ports at both sides.

The utility model relates to the technical field of blood oxygen measuring sensors, and provides a multifunctional fingernail type blood oxygen measuring sensor which comprises a first fingerstall and an adjusting structure. According to the utility model, the adjusting structure is arranged, a finger is placed in the placing groove, then the second fingerstall is pressed to enable the rack to slide downwards in the sliding groove, and the rack is in meshed connection with the gear, so that the gear is driven to enable the rotating shaft to rotate in the downward sliding process of the rack; the gear is driven to rotate, the gear limits the rack through teeth, it is guaranteed that the rack can stop and be fixed to a certain position, the device can be suitable for fingers of different thicknesses, meanwhile, the first fingerstall and the second fingerstall are connected through the connecting spring, and therefore the first fingerstall and the second fingerstall form a telescopic structure; therefore, the first fingerstall and the second fingerstall can be prevented from squeezing fingers to affect precision, practicability is achieved, and the multifunctionality of the fingernail type blood oxygen measuring sensor is improved.

The invention discloses a high-temperature fluorescence method dissolved oxygen analyzer and an analysis method thereof, and relates to the technical field of dissolved oxygen measurement, the high-temperature fluorescence method dissolved oxygen analyzer comprises a top cover, one end of the top cover is in threaded connection with a sleeve, a plug, a VP interface and a connection card are arranged in a cavity formed by the top cover and the sleeve, the other end of the sleeve is connected with an electrode stem through a threaded connection piece, and the electrode stem is in threaded connection with the top cover. The outer wall of one end of the electrode stem is sleeved with a PG13.5 connecting piece, and the inner wall of the other end of the electrode stem is provided with an LED lamp, a receiver and a PCB fixing device. An LED lamp optical filter and a receiver optical filter are arranged at the other end of the PCB fixing device, a cap is arranged on one side of the receiver optical filter and is in threaded connection with the outer wall of the other end of the electrode rod, and a light flux column is arranged on the inner wall of the cap and is located on one side of the receiver optical filter. The accuracy of dissolved oxygen content measurement is improved.

Provided in the present application are an intermittent hypoxic-hyperoxic training instrument for both dynamic and static use, and a training method and a terminal. The training instrument is configured with a plurality of training modes, and comprises: a gas generation apparatus, a control apparatus, an interactive display apparatus, a wearable heart rate apparatus and a blood oxygen measurement apparatus. After receiving a corresponding training instruction, which is sent by the interactive display apparatus in response to a training mode selected on the basis of a user instruction, the control apparatus preliminarily sets an oxygen content parameter of a mixed gas; a heart rate parameter of a trained subject is acquired from the wearable heart rate apparatus, so as to adjust an oxygen content parameter in an exercise state on the basis of the heart rate parameter; and / or a blood oxygen parameter of the trained subject is acquired from the blood oxygen measurement apparatus, so as to adjust an oxygen content parameter in a non-exercise state on the basis of the blood oxygen parameter. The training instrument of the present application is applicable to a plurality of states of a user, and can flexibly and stably adjust gas composition and output a stable gas flow.

The application discloses a paramagnetic oxygen sensor and a medical oxygen analysis system, relates to the field of oxygen measurement, and comprises a gas sample box, an air inlet is formed in the gas sample box, a pressure reducing piece is arranged in the gas sample box, and a total gas path is formed in the pressure reducing piece, wherein the total gas path and the air inlet are in communication with each other, and the total gas path adopts a bending design; and a test main body is arranged at the outlet of the total gas path and is used for detecting the oxygen content of the gas to be detected. Through the above technical scheme, the oxygen content can be rapidly detected.

The utility model provides an extraction type zirconia humidity oxygen measuring instrument, including measuring device and output module, measuring device includes zirconia sensor, base and cover plate, zirconia sensor and base pass through the threaded connection, the inside of base is equipped with the detection cavity, the lower end of cobalt oxide sensor is located in the detection cavity, and the output module is located in the detection cavity. The cover plate is provided with an air inlet connector, the base is provided with an air outlet connector and a heating rod, and the air inlet connector and the air outlet connector are communicated with the detection cavity. Meanwhile, the installation mode of the sintering sheet and the filter screen catalyst is simple, and later maintenance and replacement are facilitated.

The application relates to the technical field of intelligent cabins, and discloses a vehicle ventilation control method, a vehicle and a storage medium. The vehicle ventilation control method acquires vehicle state information at regular time intervals, and judges whether the vehicle state information meets preset oxygen measurement conditions; when the vehicle state information meets the preset oxygen measurement conditions, an oxygen measurement index is acquired according to a vehicle circulation mode, the oxygen measurement index is input into a preset oxygen amount analysis model corresponding to the vehicle circulation mode, and dynamic oxygen amount data is obtained; when the dynamic oxygen amount data is less than or equal to a preset lower limit oxygen amount threshold value, a ventilation operation is performed according to the dynamic oxygen amount data. The application can automatically trigger dynamic oxygen amount data detection of an in-vehicle environment, can timely find ventilation needs of a driver and a passenger based on the dynamic oxygen amount data, avoids unnecessary air conditioning ventilation operation and waste of vehicle energy consumption, realizes intelligent ventilation based on an environment and needs, ensures the rationality of the ventilation operation, and improves a driving and riding experience.

The application discloses a blood oxygen measurement method, device and terminal equipment. The measurement method comprises the following steps: acquiring a PPG direct current signal, and acquiring a corresponding direct current component according to the PPG direct current signal; acquiring a PPG alternating current signal, and acquiring M target wave crests and N target wave troughs according to the PPG alternating current signal, the M target wave crests reaching collinearity, and the N target wave troughs reaching collinearity; calculating a corresponding alternating current component according to the ordinate of the M target wave crests and the N target wave troughs; calculating a perfusion index according to the direct current component and the alternating current component; and calculating a blood oxygen saturation according to the perfusion index. The M target wave crests reach collinearity, the N target wave troughs reach collinearity, the alternating current component corresponding to the PPG alternating current signal is calculated according to the ordinate of the M target wave crests and the N target wave troughs, and then the blood oxygen saturation is calculated, so that the influence of noise interference on the blood oxygen saturation can be effectively avoided, and the accuracy of the blood oxygen saturation is improved.

The application discloses a non-contact blood oxygen measurement analysis method and system for a plateau environment, relates to the technical field of blood oxygen measurement analysis, and comprises the following steps: S1, based on a continuous face video stream, parallel processing is realized through a double-branch main network architecture, mutual supervision optimization is realized through a joint loss function, an environment self-adaptive weighting strategy is designed for fusion, and finally, blood oxygen prediction data is output; S2, multi-source sensor data and blood oxygen prediction data are fused, a blood oxygen fluctuation attribution model is constructed through a dynamic Bayesian network, and the probability distribution of a plateau disease and corresponding intervention instructions are output; S3, the probability distribution and the corresponding intervention instructions are received, user EPAS1 gene typing data and real-time vital signs are combined, and personalized execution strategies are generated. Through the early warning mechanism of double-path cross-validation, the application breaks through the limitations of traditional single-mode detection, fuses five core technologies, and realizes high robustness and high precision of low blood oxygen monitoring in a plateau environment.

The utility model discloses trace oxygen measuring equipment and relates to the field of gas detection equipment. The trace oxygen measuring equipment comprises a measuring table, and further comprises a plurality of sample pipelines which are arranged on the measuring table at equal intervals, and each sample pipeline is used for conveying different sample gases to be measured; the control valve is arranged at the gas outlet end of the sample pipeline; the analyzer is connected to the measuring table, and a second external thread connector is fixedly connected to the analyzer; the air outlet end of the three-way valve is detachably connected to the second external thread connector, and the air outlet end of the other end of the three-way valve is fixedly communicated with a connecting pipe; according to the utility model, air replacement is carried out for 30 seconds through the three-way valve, air in the hose is extruded out by using sample gas, constant oxygen in the air is prevented from entering the analyzer, the measured oxygen content is ensured to be the real content of a sample, the high measured value caused by oxygen interference is avoided, and the measurement accuracy is improved.

The utility model discloses an in-situ zirconia humidity and oxygen measuring instrument which comprises an output module box body, a processing circuit board is arranged in the output module box body, a measuring probe rod is arranged on the back of the output module box body, and a measuring probe shell and an inner container connecting seat are arranged at the end, away from the output module box body, of the measuring probe rod. The inner container connecting seat is nested in the measuring probe shell, a detection cavity is formed in the inner container connecting seat, two ends of the detection cavity are an air inlet end and a measuring end respectively, a molecular film and a sintering sheet are sequentially arranged at the air inlet end, a pressing ring is arranged at the front end of the sintering sheet, and a zirconium oxide sensor is arranged at the measuring end; the zirconium oxide sensor is connected with the processing circuit board through a wire, and the problems that an existing zirconium oxide oxygen measuring instrument is low in measuring precision and troublesome to maintain and replace after being used for a long time are solved.