18 results about "Signal Induction" patented technology

The invention relates to application of lentinan in preparation of a medicine for enhancing Kukuzhou cell immune function, and belongs to the technical field of immunopharmacology. The invention discloses a mechanism and application of lentinan LNT (Lentinan) based on a TLR2 (Toll-Liver Receptor 2) signal channel for enhancing the immune function of liver cumness cells and promoting lysosome maturation. By constructing an LNT fluorescence labeling system, a Kuptake cell in-vivo tracing model and a TLR2 function intervention model, it is proved that LNT can be directly combined with TLR2 and activate a TLR2 / MyD88 / NF-kappa B signal axis, and therefore the phagocytosis and immune response capacity of Kuptake cells is enhanced. Meanwhile, TLR2 signal-induced reactive oxygen species (ROS) up-regulation can promote TFEB dephosphorylation and nuclear translocation, lysosome maturation is driven, and degradation metabolism of LNT is accelerated. The invention provides a TLR2-based immune enhancement mechanism of the LNT, and provides a theoretical basis and an application basis for developing immunomodulatory targeted drugs.

The invention provides a flowing liquid monitoring system, and belongs to the technical field of electrochemical detection. The flowing liquid monitoring system comprises a reaction device and a detection management unit, the reaction device comprises a reaction cavity, the reaction cavity is internally provided with a containing cavity, the reaction cavity comprises a liquid inlet and a liquid outlet which are communicated with the containing cavity, continuously flowing liquid to be detected flows into the containing cavity through the liquid inlet and flows out of the liquid inlet through the liquid outlet, and the liquid to be detected is blood or body fluid of a human body; the at least one reaction module is arranged in the accommodating cavity and is used for reacting with a first marker in the liquid to be detected so as to generate a target reactant; the signal sensing unit is used for sensing a target reactant and / or a second marker in the liquid to be detected and generating a corresponding electric signal; the monitoring management unit is connected with the signal induction unit and used for storing and analyzing the electric signals of the signal induction unit. According to the flowing liquid monitoring system, physiological parameters for effectively guiding disease symptom prediction and prevention can be obtained.

The utility model discloses a high-precision pneumatic switch sensor circuit based on an MEMS thermal flow chip, which relates to the technical field of thermal pneumatic switch sensing and comprises a power supply unit, a signal sensing unit and a data processing unit. The signal induction unit comprises an MEMS thermal flow chip, and the MEMS thermal flow chip is used for detecting gas flow and generating a differential voltage signal; the data processing unit converts the differential voltage signal generated by the signal induction unit into a digital quantity after A / D conversion and operation processing, a target flow value is obtained, and analog voltage is output through a DAC; the power supply unit supplies power to the signal induction unit and the data processing unit. The pneumatic switch sensor corresponding to the circuit has the advantages of small size, low power consumption, low cost, high reliability, long service life and the like by using an analog front end of the MEMS technology, and the MCU performs data processing and is convenient to access an application system of a client.

This invention discloses a training-free neurorehabilitation system combining peripheral visual stimulation and motor imagery, and its usage method. The system includes: a stimulation module, an SSVEP data acquisition module, an SSVEP classification and recognition module, a motor imagery data acquisition module, a motor imagery decoding model training module, a comparison module, and a motor imagery recognition accuracy statistics module. The system uses peripheral visual stimulation as the SSVEP signal induction paradigm. After each visual stimulus, SSVEP signal classification and recognition are performed, and the classification results are converted into control commands for rehabilitation equipment to drive limb training. Within 5 seconds thereafter, an active motor imagery task is performed, while motor imagery data is collected. The SSVEP signal classification results are used as training sample labels. Once the motor imagery data meets the training sample size, the motor imagery decoding model is trained, and the model's performance in recognizing motor intentions is evaluated, gradually reducing its dependence on peripheral visual stimulation.

The utility model relates to the related technical field of grate cooler limiting, in particular to a grate cooler with a limiting switch, which comprises a grate bed body and further comprises two gaskets connected below the grate bed body, and induction sheets are arranged on the two gaskets. The mounting plate is arranged below the grate bed body, a switch body is arranged on the mounting plate, the sensing end of the switch body faces the grate bed body, and the axis of the sensing end of the switch body is perpendicular to the surface of the mounting plate; according to the self-adaptive mechanism arranged below the grate bed body and connected with the mounting plate, the self-adaptive mechanism used for mounting the switch body is arranged below the grate bed, so that the mounting plate can vibrate up and down along with the vibration of the grate bed, and the distance between the switch body and the induction sheet is always fixed at the moment; the distance between the induction sheet and the switch body is not influenced by the vertical vibration of the grate bed, so that the induction precision of the induction end of the switch body is prevented from being influenced, and the timeliness of signal induction is ensured.

The application discloses a kind of based on otolith resonance and artificial intelligence's Pseudosciaena crocea parent selective fishing method and system, comprising: the resonance frequency of otolith of different body length Pseudosciaena crocea is determined by experiment, and "body length-resonance frequency" mapping model is established;By analyzing the difference of otolith resonance frequency of different body length Pseudosciaena crocea, adjustable frequency acoustic signal is designed;According to adjustable frequency acoustic signal induction target parent fish, and through underwater acoustic sensor, optical sensor and environmental parameter detection, fish school dynamics and environmental noise are monitored in real time;Real-time analysis fish school feedback signal using deep learning model, identify fish length and distribution, optimize acoustic parameters;Combining acoustic induction and light induction technology, guide parent fish to concentrate in target area after starting mechanical net, complete fishing.The application realizes the efficient, selective fishing of Pseudosciaena crocea parent, significantly reduces the mis-capture rate of juvenile fish, improves fishing efficiency and parent survival rate.

The invention relates to the technical field of geotechnical engineering, in particular to an MICP inverse gradient regulation and control device and method. The device comprises a container, a channel unit, an annular sealing piece, a heat preservation cover, a driving piece and a pressure regulation and control device. Wherein the annular sealing piece sleeves the periphery of the channel unit and rotates to close the through hole through the driving piece, the pressure regulation and control device adjusts the pressure of the container, the container and the channel unit are filled with an immobilization matrix, the immobilization matrix adsorbs an immobilization solution, and the chemotactic plant is planted on the immobilization matrix in the container. The chemotactic plant releases a chemotactic signal through root exudates so as to directionally attract MICP functional microorganisms. According to the scheme provided by the invention, MICP functional microorganisms can be directionally attracted through the chemotactic signal induction module, directional migration and efficient immobilization of the microorganisms are realized in combination with through hole opening and closing control of the annular sealing element and pressure regulation of the pressure regulation and control device, and meanwhile, the stability of the internal environment is ensured by virtue of the heat preservation cover and the filter supporting layer; and the application efficiency of the MICP technology is effectively improved.

An electronic filter for filtering multiple signals including a signal of interest and an other spectral content induces a desired frequency selective limiter response with activator signals. The activator signals have an approximately 180-degree phase difference and effectively cancel in a final combiner, leaving only the desired filter response.

The utility model provides a signal induction coil winding pipe type water treatment instrument which comprises a case, the case is connected with an induction coil through a connecting line, the induction coil is wound on the surface of a pipeline to be treated, the surface of the pipeline to be treated located at the induction coil is sleeved with a protective cover, and the induction coil is wrapped in the protective cover. The interiors of the two sides of the protective cover are fixedly connected with sealing rings, the sealing rings are connected with the surface of a to-be-treated pipeline in an attached mode, and notches used for leading out connecting wires are formed in the sealing rings. The case is connected with the induction coil, control of the water treatment instrument during use is facilitated, the water treatment instrument can be installed at different positions according to the field environment by arranging the side supports and the bottom support, the induction coil is limited and wrapped by the protective cover, and the sealing rings are arranged on the two sides of the protective cover and used for protecting the induction coil, so that the water treatment instrument is convenient to use. The problem that water stains on the surface of the pipeline make contact with the induction coil is avoided, safety in the using process is ensured, and the using performance of the water treatment instrument is improved.

The utility model discloses a high-precision pneumatic switch sensor based on an MEMS thermal principle, which relates to the technical field of thermal pneumatic switch sensing and comprises a signal sensing unit, a signal processing unit, a shell component and a power management unit. The signal sensing unit is connected with the information processing unit and the power supply unit; the signal sensing unit is used for outputting a voltage signal by the thermal conductive chip caused by gas flow; the signal processing unit is used for amplifying a voltage signal output by the thermal conductive chip of the signal induction unit and carrying out algorithm processing to obtain gas flow information; the power supply management unit provides a power supply for the signal induction unit and the signal processing unit; the shell component is used for placing and fixing the signal induction unit, the signal processing unit and the power management unit circuit board. The sensor has the advantages of being capable of providing accurate measurement under the conditions of pulsating flow and low flow, high in sensitivity, extremely low in failure rate, low in cost and simple in structure.

The application discloses a malicious eavesdropping and listening device detection method and system based on active signal excitation, and belongs to the technical field of information security and device detection; the method comprises the following steps: step one: collecting environmental electromagnetic signals; collecting environmental electromagnetic radiation signals in a target space to be detected, obtaining original signals of the working state of electronic devices in the environment, and processing the original signals to obtain time domain signals and spectrum signals; step two: candidate signal extraction and tracking; step three: active physical signal excitation; step four: observing the change of radiation signal response; and step five: determining whether a malicious eavesdropping and listening device exists in the environment. The method is used to actively inject excitation signals into the environment to be detected, to induce controllable changes in the working state of malicious devices, and to monitor whether the radiation response of the malicious devices is strongly correlated with the excitation signals, so that the detection and confirmation of the malicious devices are realized.

The invention relates to the technical field of intelligent door locks, and discloses an object approaching identification method for an intelligent lock, which comprises an electromagnetic induction unit, an infrared induction unit and an ultrasonic induction unit. According to the object approaching identification method for the intelligent lock, a signal acquisition module controls a plurality of signal induction units to acquire multiple signal values, change values of the signal values and a preset original signal value are calculated according to an algorithm, a processing module compares the signal change values with a preset signal change threshold value in the processing module, and an object approaching identification result is obtained. When the change values exceed a signal change threshold value, a door opening signal is sent out when a person or an object is judged to be in front of the door, and when the change values are smaller than the signal change threshold value, a door closing signal is sent out before the person or the object is judged to leave the door, and the control module controls an intelligent lock switch only when receiving any two door opening or door closing signals. The phenomenon that the induction door is opened by mistake when a person or an object passes by or approaches the induction door due to the fact that only one inductor is used for judging whether the person or the object approaches or not is avoided.

The invention relates to the technical field of agricultural production, and discloses a preparation method and application of a rhizosphere nutrient enrichment and signal induction growth promoter. The method comprises the following steps: chelating and concentrating potassium nitrate, monopotassium phosphate and the like with an EDTA-citric acid chelating agent under an alkaline condition; trace elements are chelated by amino acid, modified by polyglutamic acid and emulsified into a nano suspension; the oligosaccharide and the cyclodextrin are included, the hormone and the calcium alginate are embedded, and the PLGA coating is performed to form a three-layer microcapsule; and adding the materials into a carboxymethyl chitosan solution for granulation, sequentially coating a rapidly disintegrating film, a pH sensitive film and a cellulase response film, and drying to obtain the growth promoter. The technical problems that a traditional growth promoter is low in nutrient utilization rate, short in signal action time and poor in compatibility stability are solved.

This invention relates to the field of quantum control technology, specifically disclosing a device for generating chaos in a multi-cluster Rydberg atomic ensemble based on radio frequency (RF) control. Using a multi-cluster Rydberg atomic ensemble as the working medium, the device achieves controllable excitation and observation of chaotic phases by controlling the interactions between atoms through an RF field. First, a spatially controllable multi-cluster Rydberg atomic ensemble is prepared using two-photon excitation. Second, a control signal with a specific frequency and voltage is applied through the RF field to induce interactions between the atomic ensembles into a nonlinear region. Finally, the acquired signals are analyzed to observe the emergent characteristics of the chaotic phase. This invention overcomes the limitation that a single-cluster atomic ensemble cannot generate chaos, enabling the observation of dynamic transitions from a time-crystalline phase to a chaotic phase in a three-cluster Rydberg atomic system, providing a new platform for quantum encrypted communication and the study of complex dynamics.

The invention discloses a signal induction type discharging monitoring and interlocking control device for preventing overlying of workpieces in a hot die forging process, and relates to the technical field of automatic forging equipment, the signal induction type discharging monitoring and interlocking control device comprises a bottom plate, a lower die main body and a rodless cylinder, and supporting columns are symmetrically and fixedly mounted at the top of the bottom plate. According to the signal induction type discharging monitoring and interlocking control device for preventing overlying of the workpieces in the hot die forging process, through the arranged blocking mechanism, the workpieces can automatically impact blocking pieces when sliding to a discharging conveying belt through a sliding way, and a connecting sleeve drives a rotating shaft to rotate in a bearing frame along with the impact force of the workpieces; when the blocking piece starts to rotate, the signal monitor automatically receives an impact signal to confirm whether blanking of a workpiece is completed or not, and therefore the problem that traditional photoelectric and infrared monitoring is interfered by release agent residual liquid is effectively avoided; and after the workpiece smoothly passes through, the rotating shaft can drive the connecting sleeve to rotate back to the original position again through the resilience force of the torsional spring.

The invention discloses a control system for automatically controlling doors, windows and an air curtain machine of a hazardous waste temporary storage warehouse through infrared induction, and belongs to the technical field of electromechanical control. The second sensor is arranged at a second position on the inlet side of the roller shutter door; the distance between the first position and the roller shutter door is larger than that between the second position and the roller shutter door; the control module is electrically connected with the first sensor and the second sensor; when the first sensor senses that people or vehicles pass by, a signal is sent to the control module, and the control module gives a roller shutter door closing signal and an air curtain machine closing signal. When the second sensor senses that people or vehicles pass by, a signal is sent to the control module, and the control module gives a roller shutter door opening signal and an air curtain machine starting signal. One set of switch-on signal induction switch outside the warehouse can only be switched on, the other set of switch-off signal induction switch can only be switched off, and the phenomenon that a roller shutter door switch is unstable due to frequent entering and exiting of people and vehicles in the warehouse is avoided.

The utility model discloses a manipulator quantitative automatic liquid injection device which comprises a bottom plate, a rotating motor is arranged at the bottom of the bottom plate, an output shaft of the rotating motor is connected with a concave rotating disc, a basket is arranged on the concave rotating disc, penicillin bottles are clamped in the basket, the bottom plate is connected with a sliding fixing plate, a sliding rail is installed on the sliding fixing plate, and a sliding block is installed in the sliding rail. A lead screw fixing plate is installed on the sliding block, a lifting stepping motor is installed on the lead screw fixing plate, a liquid taking needle is installed on the side face of the lead screw fixing plate, a signal induction piece is installed on the edge of the concave rotating disc, and a metal contactor is installed on the bottom plate. When the concave turntable rotates and the signal induction sheet is aligned with the metal contactor, the signal induction sheet stops, and the lifting stepping motor drives the liquid taking needle to pierce into the penicillin bottle until the lifting limiting switch is triggered to stop; after the first bottle of liquid is taken, the lifting stepping motor rotates upwards, the liquid taking needle ascends to leave the penicillin bottle until the lifting limit switch is triggered to stop, the rotating motor continues to rotate, the position of the second penicillin bottle is determined, and quantitative automatic liquid injection is achieved.