9results about How to "High-precision acquisition" patented technology

The invention relates to the technical field of medical apparatus and instruments, in particular to a scar rehabilitation therapeutic apparatus for realizing treatment based on AI evaluation analysis, which comprises a host, an AI evaluation system and a magnetic treatment component, and is characterized in that the host comprises a shell and an electric control system; the AI evaluation system comprises a data acquisition module and a treatment planning module; the data acquisition module is used for acquiring human body scar area information, the treatment planning module identifies data acquired by the data acquisition module, scar information is obtained after the data are identified and processed, and a scar rehabilitation treatment scheme is planned according to the scar information; the electric control system controls the magnetic treatment assembly to perform scar rehabilitation treatment according to the scar rehabilitation treatment scheme; the magnetic treatment assembly comprises a magnetic fixing device, a magnetic driving device and a magnetic patch; the magnetic patch is attached to a human body scar area, and the magnetic driving device executes a scar rehabilitation treatment scheme under the control of the electric control system, so that the magnetic patch rotates and moves.

The invention provides a position correction method for rapid acquisition of a transmission electron microscope, which is used for acquiring images of the transmission electron microscope at multiple angles. Through mathematical fitting of the relation between the image position (x, y) and the sample rod tilting angle (angle) and the relation between the focusing value (focus) and the sample rod tilting angle (angle), the position error and the focusing change caused by tilting are effectively corrected, so that the alignment precision and the imaging quality of the image are improved; according to the method, correction efficiency and automation can be greatly improved by substituting accurate numerical values into a fitting function, and the method has remarkable technical progress and application value in the aspect of improving multi-angle imaging and three-dimensional reconstruction of the transmission electron microscope.

An integrated electroencephalogram acquisition system based on man-machine interaction comprises a signal acquisition circuit, an anti-static isolation circuit, a pre-filter circuit, an ADS1299 chip, a microcontroller and a communication module, a signal acquisition electrode is connected with the ADS1299 chip through the anti-static isolation circuit and the pre-filter circuit, the ADS1299 chip is connected with the microcontroller through an SPI communication bus, the microcontroller adopts an STM32F405RGT6, and the communication module is connected with the microcontroller through an SPI communication bus. A five-order IIR band-pass filtering module and a notch filtering module are integrated in the microcontroller, the microcontroller is connected with a communication module, and the microcontroller is in wired communication with an upper computer through a serial port or a USB module and can also be in wireless communication with the upper computer through an ESP32 module. The electroencephalogram signal acquisition device has the advantages of being high in quality of acquired electroencephalogram signals, good in anti-interference performance, low in cost, small in size, low in noise, low in power consumption and the like, capable of achieving long-time continuous high-precision acquisition of the electroencephalogram signals and suitable for being popularized in the field of man-machine interaction.

The invention provides a transient electromagnetic secondary field receiving circuit and a use method thereof. The transient electromagnetic secondary field receiving circuit comprises a transmitting part, a current sensing and converting part, a control and switch part and a signal receiving and processing part, wherein the transmitting part comprises a transmitting bridge circuit and a transmitting coil, and the output end of the transmitting bridge circuit is connected with the input end of the transmitting coil; the current sensing and converting part comprises a current sensor and a voltage comparator, the current sensor is connected in series or in parallel in a current loop of the transmitting coil, and the output end of the current sensor is connected to the input end of the voltage comparator; the control and switch part comprises a control circuit and an electronic switch; the control circuit is respectively connected to the transmitting bridge circuit, the electronic switch and the voltage comparator; the signal receiving and processing part comprises a receiving coil and an acquisition circuit, and the output end of the receiving coil is connected to the input end of the acquisition circuit through an electronic switch. Through the high-speed electronic switch, the receiving coil is closed after emission current is completely cut off, and then the receiving coil is connected to the acquisition circuit.

The invention relates to the technical field of aquaculture environment monitoring, in particular to an aquaculture water quality real-time monitoring and early warning system based on the Internet of Things, which comprises a water quality parameter acquisition and preprocessing module, a water quality data wireless transmission module, a multi-parameter water quality analysis and prediction module and a multi-stage water quality early warning and regulation suggestion generation module, wherein the water quality parameter acquisition and preprocessing module is used for acquiring key water quality parameters in a water body in real time based on an anti-pollution sensing chip array optimized by a wafer-level test and manufacturing process, and performing preprocessing and preliminary analysis on an original signal. According to the invention, high-reliability and high-precision acquisition and preliminary regulation of key water quality parameters in a complex culture water body are realized through wafer-level manufacturing process optimization, simulated culture environment stress testing and multiple signal preprocessing technologies.

The utility model provides a low power consumption ADMU system, comprising a primary and secondary fusion pole-mounted switch and a power distribution terminal, the primary and secondary fusion pole-mounted switch is provided with a digital unit, an operating mechanism, a voltage sensor and a current sensor, and the power distribution terminal is provided with a CPU module, a power supply management module and a power supply module. The digital unit is used for collecting analog current and voltage signals and switching value signals and sending the analog current and voltage signals and the switching value signals to the CPU module through an RS485 bus. The digitization unit comprises a digitization ADMU module, a switching value acquisition module, an AD module and a power supply isolation unit, the digitization ADMU module is connected with the operation mechanism through the switching value acquisition module, and the digitization ADMU module is connected with the voltage sensor and the current sensor through the AD module. According to the utility model, the problem that a large number of cables are needed by traditional electromagnetic signals can be solved, so that the purposes of saving cost, reducing wiring failure rate and improving operation reliability of the controller are achieved.

The invention discloses a low-voltage power grid insulation monitoring method and low-voltage power grid insulation monitoring equipment, a PT opening triangular part and a zero-sequence current transformer are specially configured for a 400V low-voltage power grid, and two paths of analog signals of zero-sequence voltage and zero-sequence current of the power grid are synchronously collected; the analog signals are transmitted to an acquisition processing circuit module, and are converted into zero-sequence voltage and zero-sequence current digital signals carrying vector phase angle digital quantity information through low-voltage filtering and analog-to-digital conversion processing; then the digital signal is transmitted to an MCU microcontroller module, calculation and separation are carried out through a built-in data analysis processing sub-module, and values of a resistive component and a capacitive component of the zero-sequence current are obtained; and judging whether the line has an insulation hidden danger or capacitive capacitance interference based on the two component values. Zero-sequence electric signals can be collected at high precision, distributed capacitance interference is weakened, and accurate detection and early warning of early-stage potential insulation hidden dangers in a low-voltage power grid are achieved.

This utility model discloses a molded case circuit breaker, including a housing and a control handle disposed on the housing panel. The housing houses a main control module, a local program upgrade module, and a remote program upgrade module. The local program upgrade module includes a Type-C interface, a voltage regulator circuit, and a first isolation circuit. The Type-C interface is located on the housing panel. The power supply terminal of the Type-C interface is connected to the power supply terminal of the main control module through the voltage regulator circuit, and the data terminal of the Type-C interface is connected to the communication terminal of the main control module through the first isolation circuit. This utility model achieves plug-and-play local offline program upgrades through the Type-C interface. Combined with the remote program upgrade module, the circuit breaker can achieve more convenient and diverse program upgrades, and the program upgrade structure has stronger anti-interference capabilities, with stable and efficient data transmission.

The application relates to a data collection method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: in response to a timer interrupt instruction, entering a timer interrupt program, starting a clock counter and recording an initial count value; in the timer interrupt program, starting an electrocardiogram measurement module, a heart sound measurement module and a blood pressure measurement module according to a preset order according to preset assembly instructions, and measuring state data corresponding to a user; when the current count value of the clock counter reaches a threshold value, closing the electrocardiogram measurement module, the heart sound measurement module and the blood pressure measurement module according to the preset order based on the corresponding assembly instructions to obtain a target data set; based on the initial count value and the current count value, a data collection duration is obtained, and based on the target data set and the data collection duration, target state data is obtained. The method can realize high-precision synchronous collection of electrocardiogram data, heart sound data and brachial artery pressure data.