30results about How to "Improve data collection accuracy" patented technology

The invention relates to a fiber grating sensor, in particular to a fiber grating liquid flow sensor with temperature compensation or for eliminating the influence of temperature change on a measurement value. The sensor has high data acquisition precision and long service life, can work under the environment of high temperature (over 300 DEG C) and high pressure (over 40MPa) and acquire effective data, and is not affected by the adverse conditions of electric field, magnetic field, explosiveness, flammability and the like; the service life of the sensor is nearly semi-permanent; and the sensor has small volume, is easy to install, has high measurement precision, and can adapt to flow measurement of complex, layered and mixed layers. Particularly in the petroleum extraction process, the requirement of measurement of liquid yield is more prominent; and particularly, the sensor can be applied in the places where the temperature sensors of other forms are not competent, and particularly has great application prospect in the fields of nuclear power plants, oil fields, spaceflight, chemical industry, mining industry, energy conservation, emission reduction and the like.

A new architecture for implementing a time-resolved Raman spectrometer is 2-3 orders of magnitude faster than current systems. The system additionally is compact, environmentally rugged, low cost and can detect multiple components of a sample simultaneously. In one embodiment, the invention employs a rotating optical switch to time multiplex an input signal through multiple bandpass filters and into a single optical detector which is electrically activated only when the filtered input light pulse is about to impact it.

The combination of time-multiplexing the input signal through multiple optical filters and time-sequencing the optical detector enables the device to detect and analyze 2-3 orders of magnitude faster than current designs, processing spectra within milliseconds instead of seconds. The system can process multiple material samples (25+) simultaneously, instead of sequentially, and its mechanical ruggedness and simplicity enables using the system in harsh physical environments when traditional spectrometers can not be used reliably.

The invention relates to an RFID application testing system and relates to the electronic technical application field. The RFID application testing system is a testing system which provides RFID technical application testing services for the majority of small and middle RFID and IOT enterprise and system integrators. The RFID application testing system includes a label performance testing system, an RFID label location deployment testing system, an RFID-based intelligent tray conveying and sorting testing system, an RFID-based intelligent packing container item conveying and sorting testing system, a single-item annular conveying testing system, an intelligent goods shelf testing system and a warehouse gate door data acquisition testing system. The RFID application testing system can provide RFID technical application testing services for the majority of small and middle RFID and IOT enterprise and system integrators and can carry out nearly 30 kinds of tests under a variety of scenes.

The invention discloses a tester measuring device and the measuring method based on DSP, which comprises: a processor unit, a data collecting unit, a control outputting unit, a communication interface unit and a human-computer interface unit. It uses special DSP processor as main controller and adopts force, deformation and shift three-closed ring digital control algorithm, combines with the data collecting unit and the control outputting unit and adopts the communication interface unit which uses USB communication form.

The invention provides an air conditioner control system capable of regulating a fresh air rate in real time. An input module of the air conditioner control system is an intelligent people counting system, and is used for acquiring and analyzing number of people in an air conditioner acting area and location of people in real time; a conversion module is a signal converter and is used for converting an image signal into a data signal, and outputting the data signal to a control module; the control module is an intelligent fresh air controller, is used for analyzing and processing the receiveddata signal, and giving an instruction to the output module; and the output module comprises a fresh air exhaust system arranged in a small space and an air regulating system arranged in a large space, and is used for operating according to the received instruction. The invention further provides a control method of the air conditioner control system capable of regulating the fresh air rate in real time. The air conditioner control system performs real-time control and regulation on the air conditioner fresh air rate, and realizes supplying the fresh air rate according to people number and needs, so that the purpose of meeting comfort of people and saving energy is achieved.

The invention discloses a solid towline with good dragging performance for marine seismic exploration. The solid towline is characterized in that the solid towline comprises a main cable, hydrophones,buoyancy sleeves and an outer sheath. The hydrophones are fixedly arranged on the main cable with an equal interval. The hydrophones are electrically connected to corresponding wire cores in the maincable. Each of the buoyancy sleeves is made of a foamed polyethylene material, and foamed polyethylene is extruded on the main cable. The main cable includes the transmission wire cores, a tensile fiber layer and a conductive wire layer. The tensile fiber layer is formed by weaving aramid yarn and/or polyester yarn outside the transmission wire cores. The conductive wire layer includes a set of power lines and a set of signal lines. The power lines and the signal lines are orderly arranged with an equal interval along the circumferential direction of the main cable outside the tensile fiber layer to form the corresponding wire layer. The buoyancy sleeves are fixedly arranged on the main cable with an equal interval, and each of the buoyancy sleeves is between two adjacent hydrophones. Theouter sheath is made of a thermoplastic polyurethane elastomer rubber material and is extruded outside the hydrophones, positioning ends and the buoyancy sleeves, and the outer sheath is seamlessly bonded to the hydrophones.

The invention relates to the technical field of bio-signal sampling, in particular to a computer built-in signal amplifier and audio card multichannel bio-signal sampling system. The system comprisesa sensor used for sampling bio-signal, a signal amplifier used for amplifying bio-signal, a time division multichannel multiplex unit used for processing the amplifying signal of the signal amplifier,a first photocoupler used for sending the multiplex signal to a sound card, the sound card used for performing analog-to-digital conversion to the multiplex signal, a second photocoupler used for sending control signal to TDMA multiplex unit, a third photocoupler used for sending control signal to the signal amplifier and a processor used for controlling the operation of the sampling system, wherein the signal amplifier and TDMA multiplex unit are placed in a shielding cover. The system of the invention has low cost, small error and high data acquisition accuracy.

The invention discloses a system for detecting seepage flow of a highly permeable stratum. The system comprises a water injection device, a gathering pipe, a functional pipe, a fixing frame, a stabilizing frame and an automatic control system, wherein the water injection device is a device for performing underwater water injection; the gathering pipe is a pipeline for distributing and gathering multiple branches of water; the functional pipe is a pipeline for mounting other equipment; the fixing frame is mounted on a measuring pipe; the stabilizing frame is used for supporting the functional pipe; the automatic control system can realize automatic monitoring of the water level in the measuring pipe and can automatically record the water flow. The invention further provides a method for detecting the seepage flow of the highly permeable stratum by using the system. According to the system and the method, automatic water supplementation can be realized, and the seepage flow can be automatically recorded; high-degree automatic control is realized, and the data recording accuracy is greatly improved. When the system and the method are put into use, the labor amount of seepage flow detection engineering can be greatly reduced, and the data acquisition accuracy and reliability are greatly improved.

The invention provides an intelligent error correction method for electronic organ teaching. The method comprises the steps: selecting a to-be-played music, loading a demonstration playing MIDI, starting music score moving, by the user, pressing the music score to play the electronic organ, sending the corresponding pitch, the key pressing time point and the key loosening time point back to an error correction program in real time in an MIDI data communication mode, and in the error correction program, comparing the acquired playing pitch, the key pressing time point and the key loosening timepoint with corresponding demonstration playing MIDI data. According to the intelligent error correction method for electronic organ teaching, the MIDI data communication mode is adopted, data acquisition accuracy is high, the method is suitable for error correction of high-frequency and high-speed playing, error correction latitude is more complete, various specific types of errors can be accurately corrected, and an error correction comparison object is more scientific and reasonable and is closer to actual on-site playing.

The invention discloses a solar panel with an anti-covering structure. The solar panel comprises a solar panel main body, a support column main body and a pedestal main body, the left side of the solar panel main body is fixedly connected with the support column main body, the bottom end of the support column main body is equipped with the pedestal main body, and the outer wall of the solar panelmain body is equipped with an anti-covering mechanism. The anti-covering mechanism comprises a first sliding groove, and the interior of the supporting column body is provided with the first sliding groove. By arranging the mechanism, when the solar panel is not used, the solar panel can be correspondingly covered, the abrasion to the solar panel is further reduced, the service life of the solar panel is greatly prolonged, the practicability of the solar panel is further improved, and by arranging the mechanism, the height of the supporting column fixedly connected with the solar panel can becorrespondingly adjusted, the practical operability of the solar panel is improved, and the data acquisition accuracy of workers on the solar panel is further improved.

The invention relates to the technical field of artificial intelligence, is applied to the field of intelligent transportation, and provides a method, device and equipment for generating a vehicle driving management service work order, and a storage medium, which are used for improving the generation efficiency of the vehicle driving management service work order. The method for generating the vehicle driving management service work order comprises the following steps: performing intention recognition on initial user voice information acquired by a task type voice robot to obtain vehicle driving management to-do service information; matching the user data in a preset database according to the vehicle driving management to-do service information to obtain to-do service data; carrying out image interception on the video stream data collected by the video collector to obtain a target image; performing image processing on the target image through an image processing model to obtain targetinformation; generating a vehicle driving management service work order according to the vehicle driving management to-do service information, the target information and the acquired user information.In addition, the invention also relates to a block chain technology; the vehicle driving management to-do service information, the target information, the user information and the vehicle driving management service work order can be stored in the block chain.

The invention discloses a high-resolution implantable micro-vibration monitoring implementation method. Through selection of a high-resolution small-size micro-vibration pickup and combined with a high speed storage and wireless signal sending technology, various devices are subjected to optimal configuration, a power supply mode is subjected to secondary development and processing, and monitoring of an object needing long-time measurement during the micro-vibration engineering is achieved. The technology has engineering characteristics of small size, light weight and easy implantation aimed to the micro-vibration monitoring engineering, has characteristics of wide effective measuring frequency band, good stability, high data collection precision, high-speed storage and transmission, efficient data processing platform and the like, and has high device matching configuration advantages. An independent power supply module is arranged and branch-type power supply and integrated-type power supply can be achieved, and direct current power supply requirements of various devices during the monitoring process can be met efficiently and stably. The provided method has good economical efficiency and suitable for technology popularization and application.

A multi-point light-delivering device, comprising a waveguide carrying light along a longitudinal axis and including multiple optical windows, through which the carried light is out-coupled from the waveguide. The waveguide comprises a tapered region along which the optical windows are distributed, wherein each optical window out-couples a specific subset of propagating modes of the carried light, to which the optical window is matched.

The invention discloses wearable sleep quality monitoring apparatus. The wearable sleep quality monitoring apparatus is characterized by comprising a forehead protector body, as well as a pulse counting sensor, a temperature detection module, a control module, a memory module, a communication transmission module and a battery which are integrated in the forehead protector body; the pulse countingsensor and the temperature detection module are respectively used for collecting heart rate change information and temperature change information of a tested user during sleep, as well as feeding collected information back to the control module; the memory module is used for storing heart rate change information and temperature change information processed by the control module; the communicationtransmission module is used for connecting the control module and external equipment; and the battery is used for supplying power to the whole wearable sleep quality monitoring apparatus. The wearablesleep quality monitoring apparatus adopts a wearing way of a forehead protector, so that the wearable sleep quality monitoring apparatus can be comfortably worn during sleep, and is convenient to perform detection. Moreover, for the head is exposed during sleeping, interference of temperature and other noise signals produced in quilt to normal data can be avoided to the maximum extent.

The invention relates to a data acquisition and testing system for a warehouse gate, particularly to a device that is capable of collecting access information of an object automatically at an entrance/exit of a warehouse and analyzing the collected information accurately. The system comprises a warehouse support, an anti-collision rail, a gate testing industrial reading-writing device, gate testing antenna arrays, and a gate testing control system. The left side gate testing antenna array and the right side gate testing antenna array are arranged at the left side and the right side below the warehouse support, wherein the left side gate testing antenna array and the right side gate testing antenna array are aligned at each other and are located at the same height. The anti-collision rail is installed under the warehouse support; and the left side gate testing antenna array and the right side gate testing antenna array are encircled by the rail. The gate testing control system is based on an industrial control computer; and the gate testing industrial reading-writing device is connected with the gate testing control system by a cable.

The invention discloses a bias circuit, a bias voltage regulation circuit, a bias voltage regulation method and a bias voltage regulation device. The bias circuit comprises a first constant voltage, a second constant voltage, a digital-to-analog converter, a multi-way switch and a plurality of holding circuits, wherein the digital-to-analog converter, the multi-way switch and the plurality of holding circuits are bridged between the first constant voltage and the second constant voltage, the input end of the digital-to-analog converter and the control end of the multi-way switch are respectively connected with a control bus, the output end of the digital-to-analog converter is connected with the input end of the multi-way switch, a plurality of output ends of the multi-way switch are respectively connected with the plurality of holding circuits, and the input end and the output end of each holding circuit respectively take thea first constant voltage and a grounding end as reference voltages; and the holding circuit can output corresponding bias voltage according to a voltage value input into the multi-way switch. According to the circuit, the output bias voltage can be independently adjusted for each holding circuit, a bias power supply module does not need to be independently provided, the circuit complexity is effectively reduced, the circuit size is reduced, and the extra cost is reduced.

The invention relates to a method for constructing the Internet of Things of a small town cognitive matrix. The method comprises the following steps: S1, carrying out region position association construction on composition elements in a region based on a knowledge graph; S2, carrying out probe grid construction for detecting the mobile equipment in the region; S3, carrying out matrix collection and construction for collecting mobile data of the mobile device in the region, and carrying out data annotation construction for annotating the mobile data; And S4, carrying out topology convolution construction for machine training learning based on the mobile data, and carrying out prediction classification construction. The Internet of Things constructed by the invention realizes recognition andunderstanding of behavior track characteristics of mobile phone holders such as small town customers, routers and searchers, and cognitive ability of self-management, self-learning and self-optimization.

The invention discloses an intelligent multi-path data acquisition device for a circuit breaker. The device comprises an industrial personal computer, a data acquisition card, a power operational amplifier circuit, a signal source circuit, a plurality of relay control circuit groups, a drive circuit, a single-chip microcomputer control circuit and a level conversion circuit. The industrial personal computer is connected with the level conversion circuit and the data acquisition card; the data acquisition card is connected with the power operational amplifier circuit; the power operational amplifier circuit is connected with the signal source circuit; the plurality of relay control circuit groups are connected with the power operational amplifier circuit and the signal source circuit; the drive circuit is connected with the single-chip microcomputer control circuit and the relay control circuits; and the level conversion circuit connected to the single-chip microcomputer control circuit. According to the invention, the data collection accuracy is high and the automation degree is high.

The invention discloses a student dormitory management system. The system comprises a control center, a plurality of controllers, a plurality of sensors, a wireless communication module and terminal equipment, wherein the control center includes an electric appliance management module and an alarm module; each controller of the plurality of controllers is connected to each electric appliance and adormitory door and window in a dormitory; the plurality of sensors are used for inducing environment parameters in the dormitory; the plurality of controllers are connected to the electric appliancemanagement module in the control center; after receiving the data sent by the sensors, the system control center sends the data to the alarm module after determining that the received data satisfies an alarm condition; the plurality of controllers and the plurality of sensors are communicated with the system control center through the wireless communication module so that the plurality of sensorstransmit sensed dormitory state information to the system control center; the system control center is communicated with the terminal equipment through wireless communication; and the system control center is formed by a single-chip microcomputer processor and an upper computer arranged in dormitory management. In the invention, the automatic management of the student dormitory is realized.

The invention discloses a volute of a turbo-expander. The volute comprises a volute body and a quick-closing valve; the quick-closing valve comprises a valve rod driven by a pneumatic or hydraulic orelectromagnetic driving device and a valve disk for closing an air inlet of the inner wall of the volute body; and the valve disk is driven by the valve rod to move up and down. According to the volute of the turbo-expander, the quick-closing valve is arranged at an inlet of the volute, and compared with the structure with the quick-closing valve externally arranged on an inlet pipeline, the volute has the advantage that the response speed of interlocked shutdown is higher, so that the safety of a unit is greatly improved.