91 results about "Screening instrument" patented technology

The invention belongs to the technical field of medical optometry equipment and especially relates to an intelligent portable hand-held vision screening instrument and an optometry method. The instrument comprises an optometry system, a camera shooting system, an integral control system and a wireless communication system which are connected to a central processing unit, wherein the optometry system is composed of a light source, a diaphragm and a lens and is used for emission of the light source, diaphragm isolation and lens transmission; functions of distance and temperature measurement are achieved through combination of an ultrasonic ranging and a temperature sensor; the optometry system can shoot eye images by an infrared lens and a visible light lens; the integral control system executes different modes including a preview mode, a camera shooting mode and a checking mode; the wireless communication system carries out card reading functions of a social insurance card and a medical service card as well as wireless data transmission; and the central processing unit carries out collection and processing of data, image recognition, gray analysis and diopter computation. The intelligent portable hand-held vision screening instrument is connected to an intelligent medical cloud platform by a wireless communication system.

A system and method for generating a new composition based on a database of pre-recorded performances of existing compositions. A system and method for generating an automated method for converting existing performances and associated MIDI transcriptions to a database and generating a new composition from the database. Musical improvisations are performed by musicians, in digital audio format. The digital audio data is transcribed to MIDI data and stored in a song file. The tempo, chord symbols used and key signature are input, and added to the song file. The digital audio file is analyzed and markers for the start and the end of phrases are added in a phrase marker text file. The system analyzes the MIDI transcriptions, chords, and phrase marker text. Information about sections and phrases of the solo from the phrase market text are stored in a “Riffs” file. The MIDI data transcriptions, the chord symbols and the Riffs files are combined into a Soloist Database File, consisting of one or more MIDI transcriptions of the audio improvisations. The musician's performances are stored as digital audio files such as WAV format files. An Options file is created by the user to control parameters about the solo to be generated. The system then generates a new improvisation based on any input chord progression and key, and the Options file, by choosing portions of the Soloist Database and corresponding portions of the digital audio files to construct the new improvisation. MIDI transcriptions corresponding to the digital audio performance are displayable as notation, piano roll, and on-screen instrument keyboard or fretboard.

The invention discloses a wind tunnel experiment method of pulverized coal piling-up dusting rules. Experimental equipment or instruments are utilized, such as experimental wind tunnels, model machines of stacker-reclaimers, anemographs, microscale weighing scales, drying boxes and screening instruments; and by means of measurement of the dusting amount of four coal types comprising raw coal, large-mine raw coal, water washed coal and clean coal under a natural moisture content, the experimental correlation between the piling-up dusting rate and environmental wind speed, and loading and unloading heights satisfies the equation that beta=k*U<3.13>*H<1.64>, and correction factors k of the four coal types are obtained. Researches show that a certain relation exists between dusting quantity and entrainment air quantity during coal loading and unloading processes, and the values of the k are different if coal types are different. The wind tunnel experiment method is an effective method of being capable of being combined with pulverized coal piling-up dusting rule theoretical analysis, and is convenient to implement, strong in practicality, and capable of measuring the dusting quantity of different coal types along with changes of the loading and unloading heights and the wind speed. Therefore, the dusting rules during piling-up operation of coal can be explored, and basic data are provided for port dust prevention and treatment.

The embodiment of the present invention discloses an artificial intelligence-based strabismus screening method, server and system, which are used to obtain relevant eye position pictures through a mobile terminal and send them to the server, and analyze the acquired eye position pictures through the server, thereby realizing The screening of strabismus solves the technical problems of high cost and inconvenience in the existing method of screening strabismus through the screening device, the current status of prevention and treatment in grassroots areas is close to blank, and the technical problems of strabismus inspection, diagnosis and treatment are not timely.

The invention discloses a double-screen-stacked combined colored total-liquid-crystal-display car instrument. The instrument comprises an instrument mask, a screen ring, a segment code screen, a colored liquid crystal screen, a light-guide mask, a PCB and a bottom shell. The double-screen-stacked combined colored total-liquid-crystal-display car instrument has the advantages that the instrument is stacked and assembled by the colored liquid crystal screen and the segment code screen, various indexes and functions of a car are displayed in a combined manner, the instrument is simple in structure, free of pointers and a transmission motor, safe and reliable in circuit and resistant to vibration, and 60% of manufacturing cost is saved as compared with a similar colored total-liquid-crystal-screen instrument; the circuit principle of the instrument is advanced, the instrument is provided with a main chip IC, a voltage-stabilizing chip WC, various protecting circuits, filter circuits and DC-DC conversion circuits, and the instrument is provided with a loudspeaker which can give out warning voices; the instrument is connected with a power supply in the car, sensor power supplies on various parts of the car, a switching switch and the circuit board can be connected through the instrument, and the switching switch can switch the display modes such as a traditional mode or a modern segment code display mode of the instrument.

The invention discloses an automatic screening instrument applicable to a fine particle cluster and a use method of the instrument. The instrument comprises a screening box, wherein a screening device and a weight measuring device are arranged in the screening box, and the screening device comprises a plurality of separating screens; the weight measuring device comprises a sensing upper loop, a sensing lower loop and a pressure spring; a fine particle cluster and water are poured into the screening box together and pass through multiple layers of separating screens, and weight measuring is further carried out on particles insulated on each layer of separating screens. Compared with the prior art, the automatic screening instrument applicable to a fine particle cluster and the use method of the instrument can carry out layered filtering and screening on sand particles of different particle sizes, and then can carry out layered weight measuring, thus being further improved in accurate measurement on fine-grained soil and being suitable for use in laboratories.

The invention relates to a vision screening method, terminal and device and a storage medium of the device. The method comprises the following steps: acquiring relative positions of a tester and vision screening test equipment, calculating a difference value of the relative positions, controlling the vision screening test equipment to move to compensate the difference value of the relative positions so as to align the tester, wherein the step of aligning the tester includes making distance between the equipment and the tester and the tester to be within a set range; starting a vision screeninginstrument to carry out screening test, automatically aligning the vision screening instrument to a pupil of the tester, generating a screening result in real time, and displaying at least one test standard to the pupil; identifying gesture characteristics or voice characteristics of the tester, and changing the test standard according to the gesture characteristics or the voice characteristics;and calculating and verifying result according to the screening result and the test standard. The invention solves the technical problem that existing vision inspection instruments can only provide subjective vision measurement results of people. The method has the effect of automatically detecting and forming feedback and quickly giving objective results.

A computer-based screening instrument system and method comprising a patient interactive device coupled with a data network and an administrative server, the administrative server operatively connected to a database and a printer, wherein the administrative server is configured to serve as a screening instrument to the patient interactive device and to receive responsive information from the patient interactive device; and a triage module, wherein the screening instrument comprises a plurality of issues, an issue having a patient prompt and one or more patient selectable responses, wherein the patient interactive device, for each issue in the screening instrument, displays the related patient prompt, receive an indication of a patient selection of a related patient selectable response and transmit information representing the indication to the administrative server; wherein the administrative server receives the information and stores a patient response record comprising the information received; wherein the triage module compares a particular patient's response record with a set of triage rules and performs at least one of the following: (1) generate and transmit a triage message indicating a patient exigency to a communication device of a member of the patient's professional health care team, and (2) generate and transmit a message indicating the patient's request to discuss an issue with a member of the patient's professional health care team to the communication device.

The invention discloses an establishment method and application of a tumor classification and identification model, belongs to the field of medical disease diagnosis, aims at the problems that samplepreprocessing is complex and time-consuming due to need of location and collection of tumor focus specimens in current pathological diagnosis, small tumor tissues such as early tumor, small residual diseases and circulating tumor cannot be screened diagnosed in the prior art, and provides the establishment method of the tumor classification and identification model. The method is established basedon a plasma emission spectrum of a biological liquid sample, and is combined with chemometrics and a machine learning classification algorithm. The model established through the method can be integrated into a tumor diagnosis and screening instrument, and a rapid and accurate method for large-scale tumor screening and diagnosis of the early tumor and precancerous lesion stage diseases is provided.

The invention discloses a power tube screening instrument. The screen instrument comprises a power source, a functional keyboard, a display panel, a singlechip 13, a singlechip 15 and a main control panel, wherein the main control panel comprises a withstand voltage testing circuit. The connection mode is as follows: the singlechip 13 inputs signals to a relay driving circuit in the withstand voltage testing circuit; pole c of a dynatron Q21 is connected with one end of each of a relay coil respectively; the other ends of the relay coils are earthed; poles G, D and S corresponding to the interface of the power tube are connected with one end of each of relays K4, K5 and K6 respectively; a voltage comparator U5A outputs signals to the singlechip 13; an amplifier U3B magnifies Vbrprt signals to make FET Q1 conduct; K19 is actuated through the relay driving circuit; a high voltage power supply outputs voltage to charge a capacitor through a resistor R50; and a voltage follower U3A outputs signals to the singlechip 15. The power tube screening instrument has the advantages of high efficiency of testing, high precision, good stability, strong anti-interference capability, and is suitable to be used in a workshop.

The embodiment of the invention provides a cut tobacco screening instrument and a cut tobacco structure distribution measuring method. The cut tobacco screening instrument comprises seven layers of screens, wherein the diameters of screen holes of the first layer of screen to the seventh layer of screen are sequentially reduced from top to bottom; and the diameters of screen holes of the fourth layer of screen, the fifth layer of screen and the sixth layer of screen are replaced according to preset measuring conditions. The method comprises the steps that a cut tobacco sample to be measured isscreened three times, and first screening data, second screening data and third screening data are obtained; according to the first screening data, the second screening data and the third screening data, mass distribution interval data of the cut tobacco sample to be measured is obtained; according to the mass distribution interval data and a cut tobacco cumulative distribution function, cut tobacco structure distribution of the cut tobacco sample to be measured is obtained. According to the cut tobacco screening instrument and the cut tobacco structure distribution measuring method, the screening interval range grade of the cut tobacco sample is increased, obtained cut tobacco size continuous distribution and change condition data are more accurate, and the uniformity of cut tobacco structure distribution is accurately described.

The invention relates to the field of video processing, and particularly relates to a processing method of a video file with temperature information. According to the invention, when a temperature detection early warning system records an infrared thermal imaging picture, the image picture, all full-screen temperature data and temperature measurement rule information in the recording time period are synchronously stored. When the infrared video file is opened by off-line temperature analysis software, whether full-screen temperature data and a temperature measurement area exist or not is determined, and the infrared video file is opened; when the infrared video file is played, the full-screen temperature data and the current data of the temperature measurement rule are positioned through the current playing time point, and the recorded full-screen temperature data is analyzed in real time to calculate the current temperature result of the temperature measurement rule and display the current temperature result on a played-back video picture. The invention further relates to a remote transmission process of the data, i.e., the total data is transmitted to a central server to be processed by a supervisor, the component data is transmitted to a user server to be checked by a specified user, and the accuracy of the data is determined through the interaction of the central server andthe user server; and by setting a storage area and storage data in the user server, the data security is ensured, and the data tampering is effectively prevented.

The invention relates to an automatic screening instrument for automobile engine blank caps. The automatic screening instrument is used for automatically screening the blank caps meeting the diameter dimension requirements. The automatic screening instrument comprises a centrifugal vibration hopper, a guide rail and a detection table. A detection mechanism and a controller are arranged on the table surface of the detection table. The detection mechanism comprises an air cylinder, a first fixed check block and a second fixed check block. The first fixed check block and the second fixed check block are arranged oppositely to form a V-shaped detection groove. A pair of detection blocks is oppositely arranged on the inner side walls of the detection groove. The detection blocks are provided with a contact sensor connected with the controller. One end of the guide rail is connected with the centrifugal vibration hopper, and the other end of the guide rail is arranged at an inlet of the detection groove. The top of the detection air cylinder is opposite to the inlet of the detection groove. Compared with the prior art, the automatic screening instrument has the advantages that automatic detection and appearance detection are achieved, and detection is accurate.

The invention relates to a marine integral screening instrument cable capable of whitening and resisting ultraviolet and a manufacturing method thereof. Whitening and ultraviolet-resisting ethylene propylene rubber insulation layers are extruded at the peripheries of tin-plating annealing stranded copper conductors to form insulation wire cores, every two insulation wire cores are stranded to form a stranded wire pair, the all stranded wire pairs are stranded rightwards according to the 16-24 times of stranded node ratio to form a cable core, a copper foil polyester composite belt screening layer is lapped at the periphery of the cable core, a copper foil surface is inward, a tin-plating stranded steel drainage wire is arranged on the inner side of the copper foil polyester composite belt screening layer, penetrates through the full length of each stranded pair and clings together with the copper foil surface; and a polyester belt is lapped at the periphery of the copper foil polyester composite belt screening layer, an inner protecting bush is extruded at the periphery of the polyester belt, a copper alloy wire knitting armor layer covers the periphery of the inner protecting bush, and an outer protecting bush is extruded at the periphery of the copper alloy wire knitting armor layer. The integral screening instrument cable has the advantages that the color of an insulation layer is white, the mechanical property is good, the performance of resisting aging caused by ultraviolet light is excellent, and the service life is long.

The invention relates to the field of AR-HUD (Head Up Display) technologies and particularly discloses a double-screen display system based on polarizing beam-splitting (PBS). The system comprises a first projection module, a second projection module, an imaging system and an extinction mechanism, wherein the imaging system comprises a PBS sheet, a penetrating diffusion plate and a surface reflector; and the first projection module, the penetrating diffusion plate, the PBS sheet and the extinction mechanism are sequentially placed from top to bottom, the second projection module is placed at the right side of the PBS sheet, and the surface reflector is placed at the left side of the PBS sheet. Through the system, far-screen road condition information, near-screen instrument information, multimedia information and the like can be displayed simultaneously, so that the safety and convenience of driving are higher, and the requirement for intelligent driving is better met; a second image of the double-screen display system is a P polarized light image, and therefore a driver can see the image clearly even if he/she wears a pair of polarized sunglasses; and since the PBS sheet and the penetrating diffusion plate are added into the imaging system, an optical path is compacter, and the size of an AR-HUD is reduced.

The present invention relates to the field of medical detection equipment and visual acuity screening instrument, in particular to a portable visual acuity screening instrument and an optical path structure thereof. The visual acuity screening instrument comprises a circuit system and an optical path structure. The circuit system is a dual-processor structure, which comprises an ARM processor, anFPGA, an SDRAM, an ultrasonic ranging circuit, a temperature detection circuit, an ambient light detection circuit, a wireless charging circuit and the like. The optical structure includes near-infrared light source, a collimator lens, a CCD image sensor, a HS sensor, a high-pass filter and so on. The instrument of the present invention can be used for adults, Fast, accurate and comprehensive visual screening and analysis for infants and children, patients with special diseases and other groups can be used to detect spherical lens power, cylindrical lens power, cylindrical lens angle, pupil size, pupil distance, refractive abnormality and fixation direction, which is suitable for hospitals, physical examination centers, schools, optical shops and other institutions.

The invention belongs to the technical field of drug detection, and particularly relates to a quick drug user screening instrument. The quick drug user screening instrument comprises an excitation light source, a Raman fiber-optic probe, a filter, a detector and a central processing system. The central processing system is internally provided with an illicit drug sample database, a data processingmodule and a result output module. Raman spectrum sample data of various illicit drugs are stored in the illicit drug sample database. The data processing module judges whether a to-be-detected object contains illicit drugs or not by comparing actually-measured Raman spectrum data and the data in the illicit drug sample database. The result output module is used for outputting the judgment resultof the data processing module. According to the quick drug user screening instrument, through the Raman spectrum detection technology and the computer data processing technology, drug Raman signal peaks can be quickly detected from hairs, skin, sweat, urine and blood conveniently, a convenient method for quickly screening drug users on the scene is provided for anti-drug criminal investigation brigades, the probability of capture leakage and misjudgment is expected to be lowered greatly, and the drug detection accuracy is improved.

The invention relates to the technical field of eye exercise physiotherapy devices, in particular to a vision color difference screening instrument which comprises a lens mechanism, a sighting mark, a track and a translation mechanism. The lens mechanism is provided with a convex lens and a concave lens, the lens mechanism and the track are parallelly arranged, the sighting mark is slidably connected to the track, and the sighting mark and a perspective mechanism are coaxially distributed. The sighting mark and the translation mechanism are connected to be used for movement of the sighting mark. The vision color difference screening instrument further comprises a center control mechanism. The sighting mark comprises a color light source and a perspective mark which adhere to each other. The center control mechanism is electrically connected with the color light source to be used for controlling color change of the color light source. The center control mechanism is further electrically connected with the translation mechanism to be used for controlling the sighting mark to move. Through detection and judgment by human eyes, an optimal matching color and an optimal range suitable for users are screened, visual recovery can be performed under the most appropriate color light conditions, and the vision color difference screening instrument has a certain assistance effect on the user's visual recovery.

The invention relates to the field of infrared temperature measurement, in particular to a method and system for inhibiting temperature drift of infrared equipment in a starting stage. The method comprises the following steps: starting the infrared equipment facing a black body, and synchronously recording the internal temperature data and imaging gray scale data of the infrared equipment in the starting stage; performing function fitting on the synchronously recorded internal temperature data and imaging gray scale data based on a cubic interpolation method to obtain a temperature drift suppression function of the infrared equipment in a starting stage; employing a temperature drift suppression function for suppressing temperature drift of the infrared equipment in the starting stage in the subsequent starting process, wherein the starting stage is a period from the moment when the infrared equipment is started to the moment when the infrared equipment works normally. The method has agood improvement effect on the problem of long-term temperature drift in the starting process of the infrared rapid abnormal body temperature screening instrument, the infrared rapid abnormal body temperature screening instrument can rapidly enter an accurate temperature measurement state, and long-term advanced starting or waiting is not needed.

The invention belongs to the technical field of screening instruments, and particularly relates to a full-automatic blood sample transferring, quality supervising and selecting instrument. The full-automatic blood sample transferring, quality supervising and selecting instrument comprises a Y-direction sample feeding system, a sample transferring manipulator, an X-direction conveying system, a bar code and sample tube monitoring device, a blood sample quality supervising device and a Y-direction sample retreating system. The full-automatic blood sample transferring, quality supervising and selecting instrument solves the problems of the large error, the large contingency, the poor accuracy and the low automation degree caused by manual operation and has the advantages of being high in automation degree, accurate, quick and standard in detection and capable of intelligently judging the blood sample tube deficiency and the bar code defects, quickly judging whether the sample quantity of blood samples meets the experimental requirements, quickly judging whether the phenomena of lipemia, hemolysis and excessive dilution exist in the blood samples and automatically judging and selecting the blood samples with the defects and determining the selecting accuracy through a data terminal.