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67 results about "Self measurement" patented technology

Device and method to improve dependability of physiological parameter measurements

Self measurements of physiological parameters such as blood pressure are prone to errors and artifacts since they are often not done according to established and standardized protocols i.e., such that predetermined conditions for a reliable measurement are not met. To determine whether the predetermined conditions for a reliable measurement are met one or more physiological and environmental sensors are used to determine a measurement context. The obtained sensor data is compared with predetermined thresholds to determine whether the context allows a reliable self test. In case the predetermined conditions are not met based on the obtained sensor data instructions are given to guide the subject that wants to do a self test.
Owner:KONINKLJIJKE PHILIPS NV

Waistline and hipline measuring device and human body basic parameter automatic survey meter

The invention relates to medical examination equipment, and provides a waistline and hipline measuring device and a human body basic parameter automatic survey meter. The waistline and hipline measuring device comprises a box body as well as a tape measure, a drive motor, a photoelectric counter, a tape measure motion guiding device, a trigger switch and a drive main board which are arranged inside the box body, wherein fine holes are formed on the tape measure at a certain interval; and the photoelectric counter is in communicating connection with the drive main board. Compared with the existing human body basic parameter automatic survey meter, the human body basic parameter automatic survey meter provided by the invention has the advantage that the waistline and hipline measuring device is additionally arranged, thus the function of measuring the value of waistline/hipline is added. When the device is adopted in medical examination measurement, the device is non-toxic and harmless, easy and quick, civilized and open, and polite and appropriate, thus achieving a measurement mode which is not tabooed in common situations; and particularly the basically automatic measuring function, under cooperation of prompt of Chinese characters and patterns, the device is also suitable for self-measurement modes of 'health cabin', 'community medication' and the like.
Owner:BEIJING HAIBORDA TECH

Inertial platform leveling aiming error self-detection method

ActiveCN104764463AEasy to operatePrecision Leveling Aiming Error DetectionMeasurement devicesInertial platformComputer science
The invention discloses an inertial platform leveling aiming error self-detection method. The method comprises the following steps: allowing an inertial platform to enter a leveling-off state after leveling aiming of the inertial platform, calculating the relatively-local real time attitude of the inertial platform according to measured information of the inertial platform in the state within a period of time, and reckoning the attitude of the platform by combining with a leveling-off time difference until leveling aiming ends in order to realize the method for examining the leveling aiming error of the inertial platform through a self-measurement value. The method has the advantages of simple operation, and realization of accurate leveling aiming error detection.
Owner:BEIJING AEROSPACE AUTOMATIC CONTROL RES INST +1

Unmanned aerial vehicle swarm cooperative navigation method under dynamic mutual observation relation condition

The invention discloses an unmanned aerial vehicle swarm cooperative navigation method under a dynamic mutual observation relation condition, which comprises the following steps: Step 1, initialization is carried out, and unmanned aerial vehicles in an unmanned aerial vehicle swarm are numbered according to 1 to n; Step 2, unmanned aerial vehicle swarm navigation state amounts are chosen, and a navigation state equation and an independent navigation measurement equation are established; Step 3, a cooperative navigation measurement equation is established; Step 4, the unmanned aerial vehicles in the unmanned aerial vehicle swarm respectively carry out independent navigation solution; Step 5, the unmanned aerial vehicles in the unmanned aerial vehicle swarm respectively carry out cooperativenavigation solution; Step 6, whether navigation is complete or not is judged, if so, then navigation is stopped, or else return to step 4. The method can design a cooperative navigation method applicable to the dynamic change of line-of-sight vector measurement information on the basis that each unmanned aerial vehicle utilizes existing self measurement information to carry out independent navigation to further optimize navigation performance, effectively increasing the navigation precision of the unmanned aerial vehicles in the unmanned aerial vehicle swarm.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

SGS (Segmented Gamma-ray Scanner) and TGS (Tomographic Gamma Scanning) combined measurement device and optimization method of collimator

The invention relates to an SGS (Segmented Gamma-ray Scanner) and TGS (Tomographic Gamma Scanning) combined measurement device and an optimization method of a collimator. The device comprises a detection system, a lead shielding body, a collimator, a sample measurement platform and a projection shielding body, wherein the detection system is fixed on a measurement rack; a detector is mounted in the lead shielding body; the collimator comprises one out of an SGS collimator module or a TGS collimator module and is mounted on the lead shielding body; the sample measurement platform is arranged between the collimator and the projection shielding body; in a measurement process, a sample is placed on the sample measurement platform; in the measurement process, a TGS collimator and an SGS collimator can be switched; the TGS collimator and the SGS collimator are optimally designed through a Monte Carlo simulation method to determine the shape. The SGS and TGS combined measurement device combines self-measurement requirements of the SGS and the TGS and combines the measurement requirements of the SGS and the TGS through the Monte Carlo simulation method, so as to obtain a combined device meeting the measurement requirements of the SGS and the TGS; the SGS and TGS combined measurement device can be switched between two measurement modes.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Intelligent channel flow monitor based on piezoelectric beam

The invention relates to an intelligent channel flow monitor based on a piezoelectric beam and belongs to the fluid monitoring field. An inner wall of a channel is equipped with a flow-disturbing body and an inner cylinder, wherein two ends of the inner cylinder are equipped with end covers, the left end cover is equipped with a sensor and a circuit board, a pin is sleeved in a center hole of the left end cover, two ends of the pin are sleeved with springs, the left end of the pin is equipped with an exciter, the right end of the pin is welded with a left side board, an outer rim of the left side board is sequentially equipped with separator boards and a right side board, metal substrates are respectively crimped between the left and right side boards and the separator board and between two adjacent separator boards, cantilever beams on the substrates and piezoelectric wafers are bonded to form piezoelectric oscillators, end portions of the piezoelectric oscillators are equipped with mass blocks, and one sides of the left and right side boards and two sides of the separator boards are provided with limit faces and sinking grooves. The monitor is advantaged in that power generation and flow velocity self measurement are simultaneously realized by utilizing the coupling effect, and real flow velocity online monitoring can be realized; the monitor is configured along the length direction of a pipeline, the structure of the monitor is simple, the radial scale is small, and the required energy and bandwidth can be easily acquired through the multiple piezoelectric oscillators; the piezoelectric oscillators are reasonable in structure, and properties of large power generation capacity and high reliability are realized.
Owner:高唐融知融智科技服务有限公司

Self-measurement-control mosquito expelling and killing device

The invention discloses a self-measurement-control mosquito expelling and killing device which comprises a mosquito sound positioning assembly, an ultrasonic expelling assembly, a mosquito sucking and killing assembly and an assembly control module. The assembly control module is connected with the mosquito sound positioning assembly, the ultrasonic expelling assembly and the mosquito sucking and killing assembly. The mosquito sound positioning assembly comprises audio sensors, an operational amplifier module and an AD module which are sequentially connected. The assembly control module calculates the sound source position and the frequency and phase of a sound source through the different linear distances between at least two audio sensors in the mosquito sound positioning assembly and the sound source and drives the ultrasonic expelling assembly or the mosquito sucking and killing assembly to work according to the distance, frequency and phase information. When the ultrasonic expelling assembly works, the ultrasonic expelling assembly gives out same-phase or reverse-phase low-frequency modulation ultrasound wave signals or low-frequency signals with the same frequency as that of the sound source of mosquitoes. The self-measurement-control mosquito expelling and killing device can react on mosquitoes of different types and genders in different regions and reach the mosquitoes intelligently to achieve the optimal culling effect; the mosquitoes can be expelled or killed intelligently, efficiently and quickly through sound-light alarm.
Owner:叶志刚

Self-measurement piezoelectric stack pump

The invention relates to a self-measurement piezoelectric stack pump, belonging to the field of micro fluid transmission and control. A valve cover is installed on a pump cover, and the pump cover is installed on a pump body. A cantilever beam type outlet valve and a cantilever beam type inlet valve are stuck between the valve cover and the pump cover, and the outlet valve and the inlet valve are formed by sticking piezoelectric films and substrates. A pump cavity membrane is in pressure welding between the pump cover and the pump body, and a piston and an ejecting block are respectively installed at two sides of the pump cavity membrane. The piston, the pump cover, the outlet valve and the inlet valve together form a pump cavity, and a bolt presses a piezoelectric stack onto the ejecting block through a torsion-proof stop dog. The piezoelectric stack, the outlet valve and the inlet valve are respectively connected with an electrical control unit through a conductor group 1, a conductor group 2 and a conductor group 3. The self-measurement piezoelectric stack pump has the advantages that a one-way valve with a sensing function is utilized to directly measure the output pressure and flow of the piezoelectric pump, and an additional sensor is not needed, so that the structure is simple, and the accuracy and the reliability of the measuring precision are higher; and the self-measurement piezoelectric stack pump is suitable for real-time monitoring in the pumping process of different media such as liquid, gas, gas-liquid mixtures and the like.
Owner:ZHEJIANG NORMAL UNIVERSITY

Method for selecting same-frequency interference cell list on TDD UE side

The invention relates to a method for selecting a same-frequency interference cell list on a time division duplex user equipment (TDD UE) side. The method comprises the following steps of: generating initial same-frequency interference cell lists according to same-frequency measurement, different-frequency measurement and self-measurement results; updating the initial same-frequency interference cell lists according to same-frequency and different-frequency measurement periods; sequencing the initial same-frequency interference cell lists according to received signal code power (RSCP) measurement results, and preferably selecting the maximum same-frequency interference cell, wherein the measurement is easy to confuse with the previous measurement; selecting and configuring detection cell lists from the initial same-frequency interference cell lists in turn by using the UE; calculating an RSCP measurement value according to received service time slot data; and screening an effective interference cell which meets a set threshold.. The method can effectively acquire a practically effective same-frequency interference cell list aiming at different time slots, and can remove the influence of error interference cell configuration on a same-frequency interference elimination algorithm module.
Owner:MEDIATEK INC

Self-powered pipeline velocity monitor

The invention relates to a self-powered pipeline velocity monitor and belongs to the technical field of fluid monitoring. An inner cylinder of the pipeline is separated in to a left chamber and a right chamber by a separator plate, wherein end parts of the left chamber and the right chamber are both provided with end covers; the left chamber is provided with a circuit board; an end part of a left half shaft of a stepped shaft is provided with an exciter and is sleeved by a balancing spring and a spacing spring and the left half shaft of the stepped shaft extends out through the left end cover; a right half shaft extends to the right chamber loaded with energy transducers through the separator plate; a piezoelectric vibrator is formed by a metal substrate and a bonded piezoelectric wafer; each energy transducer is formed by two piezoelectric vibrators and N-shaped framework structures installed at two ends of the piezoelectric vibrators; piezoelectric vibrators at two sides inside the right chamber are respectively connected with the right end cover and a crash pad on the right half shaft; adjacent piezoelectric vibrators of different energy transducers are connected through a separator pad. The self-powered pipeline velocity monitor has following advantages: power generation and flow velocity self-measurement can be fulfilled through a fluid-solid coupling effect so that flow velocity online monitoring can be realized; the monitor is configured along the length of the pipeline, the structure is simple, the radial scale is small, and it is easy to get required energy through the multiple piezoelectric vibrators; the piezoelectric vibrators have reasonable structure, large generated energy amount and high reliability.
Owner:ZHEJIANG NORMAL UNIVERSITY

Ball bearing with self-measurement system

InactiveCN103982557AWith self-powered sensor monitoring functionImprove reliabilityBearing assemblyMachine bearings testingBall bearingReciprocating motion
The invention relates to a ball bearing with a self-measurement system, and belongs to the technical field of bearings. A cover plate is fixed on the end face of an outer ring; a protection plate is mounted on the cover plate; at least one through hole for mounting of a sensor, a ring slot for mounting of a circuit board, a boss and a guide hole are formed on the protection plate; an annular metal film is pressed between the cover plate and the protection plate; a piezoelectric film is adhered to the side surface of the metal film so as to form a transducer; an excited magnet is arranged on the transducer; the other end of the excited magnet is arranged in the guide hole and can do reciprocating motion along the guide hole; a group of excitation magnets are embedded into the end face of one side, which is close to the protection plate, of an inner ring; the circuit board is fixed in the ring slot through a screw, is connected with the sensor through a lead wire group I and is connected with the transducer through a lead wire group II. The ball bearing with the self-measurement system has the advantages that an automatic power supplying, sensing and monitoring function is realized; the structure of mounting equipment is not required to be changed; true real-time and on-line monitoring is realized; due to the guide hole, twisting and swinging of the excited magnet are prevented, and the transducer is high in reliability.
Owner:ZHEJIANG NORMAL UNIVERSITY

Self-powered oil and gas pipeline monitoring device

The invention relates to a self-powered oil and gas pipeline monitoring device and belongs to the field of fluid monitoring. A turbulator and an inner barrel are mounted on the inner wall of a pipeline through a rib plate I and a rib plate II, and end covers are mounted at two ends of the inner barrel; a temperature sensor and a pressure sensor are embedded onto the left end cover, and a circuit board is mounted on the left end cover; the left half shaft of a stepped shaft extends out from the left end cover and an exciter is mounted on the end part, and a balance spring and a limit spring sleeve the left haft shaft; two piezoelectric vibrators formed by splicing by metal base plates and piezoelectric wafers and an n-shaped framework mounted on the end parts of the piezoelectric vibrators form a transducer; piezoelectric vibrators on the left and right sides in the inner barrel are connected to buffer cushions on the right half shaft and the right end cover, respectively, and adjacent piezoelectric vibrators on two different transducers are connected through an isolation pad. The device provided by the invention has the advantages that power generation and flow velocity self-measurement are realized by virtue of a fluid-solid coupling effect, so that true flow velocity online monitoring can be realized; a monitor is arranged along the length direction of the pipeline, so that the device is simple in structure and small in radial dimension and easily obtain required energy through multiple piezoelectric vibrators; and the piezoelectric vibrators are reasonable in structure, large in generating capacity and high in reliability.
Owner:山东亿维新材料有限责任公司

Detection and elimination method of "outlier value" in flight data based on aircraft motion equation

The invention relates to a method for detecting and eliminating "outlier values" of flight data based on aircraft motion equations, belonging to the technical field of flight mechanics and information processing, and used for checking whether there are "outlier values" in flight data that are greatly different from other measured values. In order to overcome the misjudgment of "outlier value" caused by the prior art method only relying on its own measurement data, the present invention proposes a method for judging and eliminating the threshold value of "outlier value" based on the aircraft motion equation. The speed of change is to predict the flight state and parameters step by step according to the effectively simplified output response, and judge and eliminate the "outlier value" in the measurement according to the set threshold value at each step; due to the possibility of "outlier value" in the fast-changing state or parameters in the actual measurement The characteristic is larger than the slow variable, and the output response has engineering precision. The method proposed by the invention is more effective for eliminating flight data "outliers".
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Measurement error and transformer loss self-measurement method and device

The invention is applicable to the technical field of electric energy measurement, and provides a measurement error and transformer loss self-measurement method and device. The method comprises at least one an electric energy measurement device with the global error being known, an incoming line electric energy measurement device, an outgoing line electric energy measurement device and a transformer, wherein the electric energy measurement device with the global error being known acts as an error standard device; electric energy is inputted into the transformer through an incoming line, and electric energy measurement is performed by the incoming line electric energy measurement device; and the electric energy passes voltage transformation and is outputted through one or more outgoing lines, and electric energy measurement is performed by one or more outgoing line electric energy measurement devices. According to the embodiment of the invention, an error standard device with the global error being known is introduced, the error standard device is further connected to a substation equipped with a plurality of electric energy measurement devices, and the global error and the transformer loss of each electric energy measurement device are solved by using an energy relation that incoming line electric energy passing the transformer loss is equal to the sum of the outgoing line electric energy.
Owner:侯飞
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