68 results about "Monitoring pulse" patented technology

The invention discloses an intelligent home based old person caring device and belongs to the technical field of Internet of things. The device comprises a sign detection terminal, a fall detection terminal, a remote server and a personal mobile terminal, wherein the sign detection terminal is used for monitoring pulse, body temperature and heart rate data of a human body in real time and sending the data to the remote server; the fall detection terminal is used for monitoring acceleration, posture change and geographical position of the human body in real time, and sending alarm information and position information to the remote server and the personal mobile terminal when detecting the occurrence of fall, and a user receives falling condition information of old persons in real time through the personal mobile terminal and logging in of the remote server. The device can realize remote access, monitoring and positioning to the device user by medical staff and family members via dependence on the Internet of things about intelligent home while monitoring physical conditions and falling conditions of the old persons, and performs real-time attention on the health status of the old persons, so as to provide rescue and help in the shortest time conveniently.

A method of using CPAP equipment to sense cardiogenic oscillations in a patient's airflow, and to monitor and treat the patient's cardiac condition. The apparatus diagnoses cardiac morbidity conditions, such as the existence of arrhythmias or other cardiac abnormalities, and influences and optimizes cardiac stroke volume. The apparatus further monitors pulse-transit time, changes in the heart pre-ejection period, and the duration of the cardiac cycle.

The present invention provides gas discharge laser systems capable of reliable long-term operation in a production line capacity at repetition rates in the range of 6,000 to 10,0000 pulses power second. Preferred embodiments are configured as KrF, ArF and F₂ lasers used for light sources for integrated circuit lithography. Improvements include a modified high voltage power supply capable for charging an initial capacitor of a magnetic compression pulse power system to precise target voltages 6,000 to 10,0000 times per second and a feedback control for monitoring pulse energy and determining the target voltages on a pulse-by-pulse basis. Several techniques are disclosed for removing discharge created debris from the discharge region between the laser electrodes during the intervals between discharges. In one embodiment the width of the discharge region is reduced from about 3 mm to about 1 mm so that a gas circulation system designed for 4,000 Hz operation could be utilized for 10,000 Hz operation. In other embodiments the gas flow between the electrodes is increased sufficiently to permit 10,000 Hz operation with a discharge region width of 3 mm. To provide these substantial increased gas flow rates, Applicants have disclosed preferred embodiments utilize tangential forms of the prior art but with improved and more powerful motors and novel bearing designs. New bearing designs include both ceramic bearings and magnetic bearings. In other embodiments, some or all of the gas circulation power is provided with a blower located outside the laser chamber. The outside blower can be located in the laser cabinet or in separate location.

Provided are a fault localization apparatus based on an optical communication network and a method thereof. In the fault localization apparatus according to the present invention, a downstream light source is used as a monitoring optical signal instead of using an additional monitoring light source and a subcarrier multiplexing (SCM) monitoring pulse signal of a certain frequency band having no interference with a frequency band of a downstream data signal is used and thus a fault position may be detected at low cost.

The invention discloses a PON line fault monitoring method and device based on an optical mark method. The device comprises a monitoring system, a wavelength selector, a 1: 2 optical fiber coupler, a 1: N optical branching device and N FBGs (fiber bragg grating). The distance between the FBG connected in series to every optical fiber branch and the optical branching device is different, so that the transmission time of narrow-band monitoring pulses, which are transmitted by a laser light source, on every optical fiber branch is different, and further the monitoring pulses on the optical fiber branches can be arranged in sequence in time domain. Due to the fact that the monitoring pulses arriving at the branches are marked in time domain to distinguish feedback signals of different lines, the method is called as the optical mark method. An upper computer compares received monitoring pulse data with original data and determines the on-off state of the corresponding branch through the existence and inexistence of certain pulses. The PON line fault monitoring method and device effectively overcomes the difficulty that an OTDR (optical time domain reflectometry) cannot support multi-branch network monitoring; is a simple and practical real-time monitoring method for large-branch-ratio optical network lines; and has the advantages of high precision and operation convenience.

A method for improving biometric data by using a plurality of wearable devices on a network includes making a first measurement at a first wearable sensor at a first location on a body, making a second measurement at a second wearable sensor positioned at a second location on the body, and detecting an arterial pulse wave transmit time using the first measurement and the second measurement.

The invention discloses a portable pulse and body temperature monitoring device for monitoring pulse and body temperature of the human body in real time. A Bluetooth module in the prior art is replaced by adopting a Zigbee module so as to reduce the energy consumption of the whole device and improve the endurance time; body temperature measurement function is added into a physical sign measurement module so as to expand the function of a system; and the physical sign measurement module and a wireless transceiving module are integrated in a shell and the shell is fixed on a wrist band with adjustable tightness so as to solve the problem that the conventional device is easy to drop during high-strength motion. In addition, the device has two working modes of monitoring and warning.

The invention discloses host-slave station communication baud rate automatic matching, which comprises the following configuration steps of (1) appointing a group of baud rate through a host station and a slave station; (2) appointing 0xAA as a checking message through the host station and the slave station; (3) when electrifying the slave station, setting baud rate of a serial port as a default baud rate, waiting for receiving the checking message on a serial port bus, monitoring pulse width of a first byte, calculating the baud rate according to the pulse width if the messages received for continuous 3 times are not consistent to appointed checking messages, comparing the appointed baud rate and the calculated baud rate, and then selecting the proximate appointed baud rate as communication baud rate of the slave station. According to the host-slave station communication baud rate automatic matching provided by the invention, the automatic matching of the baud rates of the host station and the slave station is realized, and only few seconds to few minutes are needed for setting the baud rate for one time, so that the maintenance cost is reduced.

The invention relates to a method for preparing a textured zinc oxide nanowire film, with a core-shell structure, growing on the surface of carbon fiber. The preparing method comprises the following steps of: removing a sizing agent on the surface of the carbon fiber or carbon fiber fabric, mixing zinc oxide powder and active carbon to obtain mixed zinc powder, feeding the mixed zinc powder as a growth source to a sealed tube type furnace, slowly vacuumizing, slowly introducing argon and oxygen mixed gas, heating to 850 DEG C, preserving the heat for 10min, then heating to 960 DEG C and preserving the heat for 30min, and then cooling, wherein the piezoelectric voltage of the zinc oxide film is educed through an electrode between the carbon fiber and the top of the zinc oxide, and the connection between the surface of the zinc oxide film and the electrode is of schottky connection. A device disclosed by the invention can be used as a gas pressure sensor or a pneumatic pressure nano engine of automobile/aircraft tyres. Besides, the device disclosed by the invention can also be used as a self-powered sensor for continuously monitoring pulse condition characteristic regions, such as pulse vibration frequency, pulse amplitude, and the like through a piezoelectric current change curve and provides a support for quantification representation of modern human body internet of things of traditional Chinese medicine.

The invention provides a radiation dose measurement method based on a quantum dot electroluminescent principle, which includes acquiring electroluminescent signals of an electroluminescent system based on a quantum dot in a radiation field through an image acquiring system, obtaining electroluminescent signal strength through processing and amendment, and obtaining radiation dose information according to functional relationship of the electroluminescent signal strength and the radiation dose. The novel radiation dose measurement method effectively improves space and time resolution of radiation dose measurement results, can be used for monitoring steady state radiation field dose, can also be used for monitoring pulse radiation filed dose, can obtain two-dimensionally or three-dimensionally distributed real-time information of the radiation dose, and can obtain radiation dose information with spatial discrimination reaching micron dimension.

The invention provides a test device for acquiring the on-off state of a thyristor impulse power switch assembly. The test device comprises a current sensor, a preprocessing circuit, a constant current source conversion circuit, a sampling resistor, a shaping and comparing circuit, a data collector, an electro-optic conversion circuit, a photovoltaic conversion circuit and a control module. The current sensor is arranged in a resistance-capacitance absorption circuit of a thyristor assembly in a sleeved mode. The input end of the preprocessing circuit is connected with the current sensor through a first double-core shielding double-twisted cable. The input end of the constant current source conversion circuit is connected with the output end of the preprocessing circuit. The input end of the shaping and comparing circuit is connected with the two ends of the sampling resistor. The input end of the data collector is connected with the two ends of the sampling resistor. The input end of the electro-optic conversion circuit is connected with the output end of the shaping and comparing circuit. The input end of the photovoltaic conversion circuit is connected with the output end of the electro-optic conversion circuit through a cable. The control module is connected with the output end of the photovoltaic conversion circuit. According to the test device, the work state of the impulse power switch assembly can be monitored fast, reliably and safely, state signals can be transmitted in a long distance, and the test device can adapt to a strong electromagnetic environment occasion.

The invention provides a method for personal health examination and evaluation based on a vital sign monitor bracelet. The method comprises a steps S1 of wearing the vital sign monitor bracelet with functions of monitoring pulse rate and oxyhemoglobin saturation on a wrist, setting a data collection mode, the data continuous collection time and the data collection frequency of the bracelet first before data collection; a step S2 of collecting the oxyhemoglobin saturation, the pulse rate and body movement data of the wrist of a user in real time through the bracelet; a step S3 of analyzing the oxyhemoglobin saturation and the pulse rate data; a step S4 of analyzing the body movement data of the wrist; and a step S5 of performing weighted calculation on analytical data in the S3 and S4 steps to judge whether health hazards exist in the user according to whether the calculating result exceeds certain threshold value or not. According to the method, the health examination and evaluation are performed on the user by joint law of multiple parameters, such as the pulse rate, blood oxygen and the like. The method has the advantages of being convenient to operate and high in accuracy of determination and helping the user to discover the body health hazards as soon as possible.

The invention relates to a method and a system for monitoring pulse electrostatic discharging testing response of a transmission line. A light emission microscope acquires light emission images of the pulse discharging process of each transmission line while a TLP testing system applies transmission line pulse under different pulse voltage to an electronic element, and each light emission image can be overlapped with optical reflecting images when the test is ended, so as to accurately position an electrostatic discharging channel and a damage point of the electronic element. With the adoption of the method and system, the electroluminescence phenomenon in the pulse electrostatic discharging testing process of the transmission line can be monitored in real time, thus the electrostatic discharging channel in the electronic element under the electrostatic discharging testing process can be clear, the damage point of electrostatic discharging can be timely found out and accurately positioned, and as a result, the weak link of electrostatic resistance of a product can be determined; in addition, the test information can be fully utilized, the test is simple, and good technological support is provided for the study on electrostatic damp of the electronic device and the improvement of ESD design; good engineering application values are achieved.

A sleeping monitoring magnet therapy recovery instrument based on the somatosensory musicotherapy comprises an upper computer and a power source, the upper computer can input a signal through a keyboard, the power source supplies electricity through a transformer, the signal output end of the upper computer is connected with a lower computer composed of a single chip microcomputer in a serial port communication mode and connected with a blood oxygen detector used for monitoring pulse, blood oxygen and heart rate physiological parameters when a patient sleeps in a Bluetooth communication mode, and the output end of the lower computer is connected with a magnet field generating circuit of a magnetic field coil capable of outputting electric fields with different frequencies and intensities. According to the sleeping monitoring magnet therapy recovery instrument, a therapeutic magnetic field suitable for the patient can be generated according to the doctor advice to induce and adjust the electric potential activity of the sleep center of the patient, the somatosensory musicotherapy is added in the magnetic inducing process, a comfortable sleeping environment is created for the patient, and the sleeping quality is improved. In the whole sleeping process, the detection on the oxyhemoglobin saturation of the patient is added, the blood oxygen, the heart rate and other physiological indexes of the patient are monitored in real time to be used for the treatment result evaluation, and a doctor can adjust the therapeutic schedule conveniently.

The invention discloses an infusion pump system with a blood oxygen and blood pressure monitor function. The system comprises an electronic infusion pump body, wherein the electronic infusion pump body is provided with a blood oxygen detection unit connected with an external blood oxygen sensor, and a blood pressure detection unit connected with an external blood pressure sensor; and the blood oxygen detection unit and the blood pressure detection unit are connected with a wireless data transmission unit which is used for transmitting signals to a system workstation. The system is reasonable in structure, and can be used for monitoring pulse oximetry, patient heart rate and blood pressure in the pain-easing treatment process, so as to timely find hyoxemia and other problems and prompt medical staff to treat as early as possible, so that the occurrence of complications can be reduced, and the occurrence of adverse response (such as sudden cardiac arrest, death) can be reduced.

The invention relates to a pulse wave measurement device which comprises a measurement unit and a calculation and control unit (10), wherein the measurement unit comprises a measurement gas cavity (6), a reference gas reference (4), a charging and discharging structure, a differential pressure measurement structure and a pressure measurement structure; the measurement gas cavity (6) comprises an elastic gas bag for monitoring pulse of a measured position; the elastic gas bag is connected with the reference gas cavity (4) by a switchable access; the charging and discharging structure is connected with the measurement gas cavity (6) or the reference gas cavity (4); the differential pressure measurement structure is respectively connected with the measurement gas cavity (6) and the reference gas cavity (4); the pressure measurement structure is connected with the measurement gas cavity (6); the calculation and control unit (10) comprises a controller which is respectively connected with the charging and discharging structure, the differential pressure measurement structure and the pressure measurement structure. Compared with the prior art, according to the pulse wave measurement device disclosed by the invention, a pulse wave is recorded in a differential pressure mode, a differential pressure sensor which further accords with a peripheral vascular pressure variation range is used, a range of the sensor is sufficiently used, and measurement accuracy is improved.

The invention discloses a device for monitoring pulse waveform and measuring blood pressure simultaneously, and belongs to the technical field of medical equipment. A pulse wave module detects brachial arterial pulse fluctuations through a pressure sensor, and signals are transmitted to an analog signal conditioning circuit, an A/D conversion circuit, a single chip microcomputer, an accessory circuit of the single chip microcomputer and an interface circuit between the single chip microcomputer and a PC. Collected data are transmitted to the computer through signals. Meanwhile, blood pressure is measured through inflation and deflation of an inflatable oversleeve, and the data are transmitted to the computer. Finally, the computer collects the pulse waveforms of the pulse wave module, and meanwhile the waveform sampling frequency, the amplification factor and the base line position are adjusted during sampling setting, high pressure, low pressure and the heart rate of a voltage module are received, and the real-time detection function is achieved. According to the device, the obtained pulse waveform data and blood pressure value lay the foundation of calculation of the average blood flow volume, the cardiac output and the like and finally achievement of early prediction of some hemodynamic diseases and the clinical diagnostic function.

The invention relates to a novel method for triggering and monitoring thyristors of a direct-current converter valve, which belongs to the electrical and electronic fields and the direct current transmission field. The method is implemented by thyristor triggering and monitoring units and a valve-based electronic device. The method comprises the following steps: after receiving wide-pulse triggering signals sent from an upper computer, the valve-based electronic device codes the wide-pulse triggering signals, and then sends the coded wide-pulse triggering signals to the thyristor triggering and monitoring units; after receiving trigger impulse codes, the thyristor triggering and monitoring unit decodes the trigger impulse codes, then triggers the thyristor, and returns corresponding states according to monitoring pulses of the valve-based electronic device, wherein the returning signals of the thyristor triggering and monitoring unit comprise the state of the thyristor, the states of protection actions, the working status of the thyristor triggering and monitoring unit, and the states of optical channels; the valve-based electronic device receives the returning signals of all thyristor triggering and monitoring units of the converter valve, monitors and records the state of the converter valve in real time, and reports the state of each thyristor level to the upper computer; and then the upper computer can display the state of each thyristor level in real time.

The invention discloses an intelligent safety limit control system of hoisting equipment and a working method thereof. In the system, a group of output ends of a controller are respectively connected with limit circuits of respective peripheral equipment; pulse signal output ends of the controller are connected with a group of optoelectronic switches and display devices, and the group of optoelectronic switches and the display devices correspond to the functions of the limit circuits of the peripheral equipment; each optoelectronic switch and a state display unit thereof are connected to respective controller input interface; a power supply is respectively connected with the controller, the optoelectronic switches and the display devices and used for supplying power to the optoelectronic switches and the display devices; and an alarm circuit is connected with an alarm output interface of the controller. In the invention, when the equipment is powered on for starting, the system sends out an initialization monitoring pulse so as to diagnose the properties of all limit devices on the equipment and the limit position of an equipment execution mechanism on line and change the invisible problems of the limit switches into preventable control technical problems to achieve the purpose of real limit safety protection of the hoisting equipment.

The invention discloses a network monitoring method and device based on polling matching; modulation is carried out in links to be monitored by an adjustable light source, while a monitoring pulse sequence corresponding to the links to be monitored emerges, and states of the links to be monitored are recognized one by one through a command transmitted by a receiving processing and control unit; the network monitoring method enables branch fiber links in a passive optical network to be effectively monitored; the states of the branch fiber links are judged respectively at a receiving end through unique signal characteristics generated by matching of the monitoring pulse sequence and a terminal encoder; in addition, the network monitoring device has simple structure and enables system and user costs to be effectively reduced.

The invention discloses a multiple access method applicable to QoS (Quality of Service) hard guarantee in a density nonuniform state and solves the problems that in the prior art, receiving end information is not utilized and a node density and service characteristics are not considered. The multiple access method comprises implementing steps of: a packet sending process of storing data packets inservice packet sending queues with different priorities, sequentially polling to search to-be-sent data packets from high priority to low priority, calculating an overlapping degree of neighbor nodes, calculating a channel occupation statistic value according to a monitoring pulse number, comparing the statistic value with a channel access threshold and selecting random or reserved access by combining the service characteristics; and a packet receiving process of judging a data packet type from a physical layer and selecting a packet sending, backoff or abandon operation according to the datapacket type or a case whether a current node is a target node. According to the invention, a reservation mechanism is introduced, the overlapping degree and the statistic value participate in judgment on an access channel, a conflict of nonuniform network density is resolved, an access strategy is more reasonably designed, user QoS is improved, reliability is high, and the multiple access methodis applied to a mobile Ad Hoc network.

The present invention provides a method for on-line monitoring the cluster ion beam of a pulse gas. The method comprises the steps of firstly, applying the same voltage on all cluster ions in a cluster ion beam, and endowing cluster ions of different charge-mass ratios in the cluster ion beam with different velocities; screening the cluster ions by a velocity selector, wherein one part of the cluster ions deviate from an original direction and the other part of the cluster ions move along the original direction to be exported out of the velocity selector; measuring the exported cluster ion beam by using a Faraday cup, and determining the number of cluster ions; and displaying the counting result of the ion beam in real time by using a computer connected with the Faraday cup. The invention also provides a monitoring system. The system comprises an air inlet pipe, a pulse valve, a nozzle, a beam splitter, an ionization device, an accelerator, a velocity selector, an aperture and a Faraday cup. According to the technical scheme of the invention, the quality selection of pulse cluster ions is realized by using a continuously adjustable magnetic field. Meanwhile, the existence and the quantity of heavy cluster ions can be judged. The on-line separation, measurement and monitoring functions for ions are realized.

The invention discloses a vehicle fatigue early warning device. The vehicle fatigue early warning device comprises a data server, a wireless reception module, a wireless transmitting module, a centralprocessor, a data analysis module, a data storage module, a sound-light alarm module, an A/D converter, a data acquisition module, pulse sensors and a monitoring camera, wherein the pulse sensors aremounted at two sides of an automobile steering wheel, are electrically connected with the data acquisition module and are used for monitoring pulse-beats of hands of a driver and transmitting the acquired pulse beat information to the data acquisition module. The vehicle fatigue early warning device is advantaged in that automatic early warning in a cab can be further carried out, the real-time information in the cab can be transmitted to a remote intelligent handset for real-time monitoring, the early warning device can be controlled through the intelligent phone for manual early warning prompting, a variety of early warning methods are utilized to prompt drivers when the drivers are in driving fatigue, and safety of the drivers is guaranteed.