19 results about "STM32" patented technology

The application relates to the technical field of guide sticks, in particular to an intelligent guide stick based on an STM32 and a control system thereof, which comprises a guide stick rod, the guide stick rod is divided into three sections of upper, middle and lower, a power supply Bat, a loudspeaker SPK, an ultrasonic sensor HC-SR04, a fall judgment cancel button S2, a self-locking switch S1, an acceleration sensor ADXL345, a positioning module GSP and a short message communication module GSM are installed on the upper section of the guide stick rod; the application detects the existence of obstacles through an ultrasonic ranging circuit to give an obstacle avoidance reminder, detects the water level through a water level sensor to give a water accumulation reminder, combines the acceleration sensor to realize real-time monitoring of three-axis acceleration to achieve fall detection, and can also realize a GPS positioning function; if a user falls down and the button is not pressed within a certain time, an emergency help short message will be automatically sent to a preset number, and the current position information of the user is attached to the short message; meanwhile, the guide stick will play a help voice to ask for help from people around.

The invention discloses a heterogeneous fiber bragg grating high-speed demodulation system based on an STM32 and an FPGA. The heterogeneous fiber bragg grating high-speed demodulation system comprises an optical path module, a data acquisition mainboard and an auxiliary control daughter board, the optical path module converts the optical signal into analog voltage; an FPGA on the data acquisition mainboard performs filtering and peak detection on the voltage signal to obtain an initial wavelength; the STM32 on the auxiliary daughter board completes temperature compensation to obtain a final wavelength and uploads the final wavelength to the upper computer; wherein the STM32 dynamically generates a processing instruction according to a working condition and sends the processing instruction to the FPGA, the FPGA adjusts processing logic and feeds back performance data according to the processing instruction, and the STM32 adaptively optimizes the instruction according to the feedback to form closed-loop cooperation. Compared with the prior art, the self-adaptive balance of high speed, high precision and low power consumption is realized in fiber bragg grating demodulation through a heterogeneous cooperation and dynamic optimization mechanism of the STM32 and the FPGA.

The application belongs to the technical field of avionics, and particularly relates to a JTAG interface-based ATSU board data reading and writing system and method, which comprises an upper computer and an embedded control device, the embedded control device comprises an STM32 module, an FPGA module, a JTAG module and a first relay module, the upper computer and the FPGA module are in communication connection with the STM32 module respectively, the JTAG module is connected with the FPGA module and the first relay module respectively, the FPGA module is in communication connection with the first relay module, and the first relay module is used for controlling the on-off between the JTAG module and the ATSU board. The application can reduce manual operation actions on the ATSU board and reduce the probability of manual operation failure.

This utility model discloses an explosion-proof online gas component detection device. The device houses a gas component detection system within an explosion-proof enclosure. The enclosure body is connected to a cover via a flange, and the cover has a viewing window. The enclosure body has at least two gas path interfaces, used for obtaining the sample gas to be detected and processing the detection exhaust gas, respectively. A capacitive touchscreen is located inside the viewing window and is connected to a control motherboard. The control motherboard includes a sensor connected via an AD chip to obtain sensor data, which is then sent to an STM32 chip for data processing and analysis. The data is also transmitted to the capacitive touchscreen via a TTL serial port signal line. The viewing window achieves both operability and explosion-proof protection.

The application discloses a laser marking control card combined with a visual module, a control system comprising the control card and a control method thereof, and belongs to the technical field of laser processing. The control card comprises a marking card body, which is integrated with a core processing unit, a main control unit, an instruction cache module, a double-network-port communication interface and a marking control module. The core processing unit adopts a single STM32 single-chip microcomputer, simultaneously processes image data and marking instructions, and realizes single-chip integration of visual positioning and instruction forwarding. The double-network-port communication interface adopts two independent PHY chips, is connected with an industrial computer and a CCD camera respectively, realizes parallel transmission of instructions and image data in physical isolation, and adopts an SRAM chip for the instruction cache module to temporarily store marking instructions to prevent data loss. Through the integrated structure, the application solves the problems of low integration, poor collaboration and unstable instruction transmission caused by separation of the marking card and the visual equipment in the prior art, and realizes seamless linkage of visual positioning and marking control.

This invention discloses a robot summoning and following system and method based on visual edge computing, belonging to the fields of edge computing and embodied intelligent robots. The system uses an RK3588S as the edge computing platform and an STM32 as the motion controller, employing a USB camera for visual perception to construct a localized closed loop of "detection-tracking-decision-execution". A lightweight YOLOv8-Pose improved LSCD detection head is used, and INT8 operation mode is employed for inference acceleration. Summoning and stopping posture interaction commands are realized through multi-frame determination of the angle between key points of the upper limbs, enabling autonomous selection and switching of the following target. Based on the ByteTrack algorithm, HSV-LBP features of the rigid body region of the torso are integrated to improve the robustness of re-identification in occlusion and target loss scenarios. A multi-threaded parallel architecture is adopted to decouple inference and post-processing, significantly improving hardware resource utilization and system real-time performance. Standardized serial port protocol communication supports coordinated switching between vision and LiDAR, and the PID algorithm is optimized to achieve smooth robot following. This invention requires no cloud or external positioning equipment, exhibits low latency response, stable tracking, and natural interaction in complex dynamic scenarios, and can be widely applied in industry, military, and service sectors.

This invention discloses a method for implementing SPI bus communication between two processors in an electro-hydraulic servo controller. The STM32 microprocessor has an STM32 state machine, and the DSP microprocessor has a DSP state machine. The switching of operating states is coordinated through the transitions between the STM32 and DSP state machines. The method includes the following steps: A1: After receiving a start command from the host computer, the STM32 microprocessor controls the DSP microprocessor to operate via its flow control pin; A2: The STM32 microprocessor controls the DSP microprocessor to switch its DSP state machine to data communication mode via a command message; A3: The STM32 microprocessor acquires sensor data collected by the DSP microprocessor; A4: The STM32 microprocessor determines whether it has received a stop command from the host computer. If yes, proceed to step A5; otherwise, proceed to step A3; A5: The STM32 microprocessor controls the DSP microprocessor to switch its DSP state machine to sleep mode via a command message. This invention avoids data transmission errors caused by the DSP microprocessor prematurely sending data to the STM32 microprocessor, thus improving the reliability of the servo controller.

The application provides a camera calibration device based on optical measurement, and the device housing is composed of six independent mounting plates; a control module is fixed in the device housing, including an STM32 control board, a Bluetooth module and a wireless module, which supports receiving control instructions through three modes of USB data line, Bluetooth connection and wireless handle; the camera calibration assembly includes a first steering engine, a second steering engine, a third steering engine, a connecting member and a calibration plate, the output shafts of the first steering engine, the second steering engine and the third steering engine are in a two-by-two orthogonal relationship in space, and the orthogonal intersection point of the three shafts is located at the end of the output shaft of the third steering engine; the calibration plate is detachably installed on the metal steering disc of the output shaft of the third steering engine; the STM32 control board is electrically connected with the three steering engines, used for analyzing the control instructions and driving the corresponding steering engines to rotate, and then driving the calibration plate to produce rotary motion around the three orthogonal directions. The application has good portability and simple and flexible operation.

This invention discloses an underwater communication system and method for a hydrofoil unmanned surface vessel (USV) based on STM32 and OFDM, belonging to the field of underwater acoustic communication technology. It includes: a main control module, employing an STM32F407 series microcontroller as the core processor, responsible for protocol processing, data scheduling, and control of the entire communication process; an underwater acoustic communication module, including an underwater acoustic modem, used to integrate a preamplifier and impedance matching circuit using orthogonal frequency division multiplexing (OFDM) technology; and a sensor interface module, providing a waterproof RS485 interface for connecting a six-axis gyroscope, accelerometer, and velocity sensor. This invention effectively overcomes underwater multipath fading and noise interference through the combined use of OFDM and LDPC encoding. In typical underwater environments, the bit error rate can be reduced by an order of magnitude compared to traditional FSK systems. OFDM technology improves spectrum utilization, enabling data transmission rates up to 50Mbps, meeting the high-speed backhaul requirements of real-time video and large amounts of sensor data.

This utility model discloses a temperature measurement device based on an STM32 microcontroller, comprising a temperature housing, a voltage divider circuit fixedly installed on one side of the bottom of the inner wall of the temperature housing, a power supply circuit fixedly installed on the other side of the bottom of the inner wall of the temperature housing, an STM32 microcontroller fixedly installed in the middle of the bottom of the inner wall of the temperature housing, and a buzzer fixedly installed on one side of the top of the temperature housing. This STM32 microcontroller-based temperature measurement device, through the high-precision ADC module and accurate algorithms of the STM32 microcontroller, can provide accurate temperature measurement, meeting the high-precision measurement needs of industries, scientific research, and medical fields. Utilizing the low-power characteristics of the STM32 microcontroller and optimized software design, the system can significantly reduce power consumption while maintaining high performance, making it suitable for battery-powered and remote monitoring applications. Furthermore, the system design is simple and easy to integrate into existing devices or systems.

The application belongs to the technical field of nonlinear optical measurement, and provides a microscopic P-Scan automatic measurement system based on STM32. The problems of poor experimental accuracy caused by manual measurement of the existing microscopic measurement system are solved. The system comprises a measurement light path and a control unit; an attenuating disc is carried by a stepping motor; a wireless communication module is used for receiving a motion instruction sent by a host computer and sending a pulse signal to a stepping motor drive board; after receiving the pulse signal, the stepping motor drive board provides a driving current to the stepping motor, and the stepping motor drives the attenuating disc to rotate by a corresponding angle to achieve the required incident power in the experiment; and the power probe CMOS image sensor is connected with the host computer for communication. The application has short measurement time and high measurement accuracy.

This invention discloses a portable multi-core secondary circuit cable wiring status detection system, comprising an independent signal generating device and a detection device. The signal generating device includes: a first control unit; a signal generating module; a first integrated connector; and a first isolation protection unit. The detection device includes: a second control unit; a multi-channel detection module; a second integrated connector; a human-machine interface unit; and a second isolation protection unit. The signal generating module is built based on an FPGA chip. The system is integrated into a single chassis equipped with a portable handle and a non-slip base. The control unit uses an STM32 main control chip to achieve human-machine interaction and data storage, is compatible with mainstream relay protection panel models, and can significantly reduce the number of disconnections, shorten the detection cycle, and improve the safety and convenience of on-site testing. This invention features a lightweight structure and simple operation, is suitable for on-site testing scenarios of secondary circuits in power system relay protection panels, and has broad application prospects.

This invention relates to the field of explosives detection technology, specifically disclosing a testing device and method for an electronic detonator module, comprising: an STM32 microcontroller, a DAC module, an OPA2196 non-inverting amplifier, an energy storage capacitor, an NMOS discharge switch, a constant current source module, and a voltage sampling module; the I2C pins of the STM32 microcontroller are connected to the DAC module and the voltage sampling module respectively, realizing digital signal output and sampled data feedback; the GPIO pins are connected to the NMOS discharge switch and the PMOS charging switch, outputting high and low levels to realize charging and discharging control; the general-purpose I / O port is connected to the enable terminal of the constant current source module to control the opening / closing of the constant current source; the DAC and non-inverting amplifier achieve continuously adjustable accuracy at the 0.01V level; the capacitor discharge realistically simulates the pulse energy of the detonator tip; the single device has dual functions, is safe, efficient, and repeatable in operation; and can also realize circuit protection.

The application belongs to the field of embedded system and data acquisition technology, and discloses a high-speed multifunctional data acquisition card based on STM32. The acquisition card takes STM32H7 series microcontroller as the core, integrates signal conditioning, high-speed AD conversion, multi-type communication, double-path storage, self-adaptive self-calibration and other function modules, supports high-speed acquisition of analog voltage, digital switching value and pulse signal, has adaptive sampling precision of 12 / 16 bits, is equipped with Ethernet, USB2.0, RS485 and other interfaces, supports multi-card cascading, and has multiple hardware protection and anti-electromagnetic interference design. The application considers high-speed acquisition and functional diversity, has high hardware integration degree and good environmental adaptability, can be widely applied to industrial automation, intelligent monitoring, scientific research and other fields, and has high practical and popularization values.

This invention provides a method for adjusting the focal length of an optical lens based on STM32 and a PID algorithm, comprising: receiving a target focal length value; converting the target focal length value into a corresponding motor target position code value using a lookup table and linear interpolation algorithm according to a pre-stored focal length-position correspondence table; acquiring a real-time position feedback value from the position sensing module and calculating its position error with the target position code value; processing the position error using an improved position loop PID control algorithm and outputting a speed control command; generating a motor drive command using a speed loop PID control algorithm based on the speed control command and the real-time speed feedback value calculated from the position difference; and executing the motor drive command through a motor drive module to control the movement of the zoom motor and the focus motor until the actual focal length reaches the target focal length. This invention achieves high-performance servo control of the focal length of an optical lens.

The utility model discloses a kind of slide rail devices that can control camera rotation and translation, it is related to monitoring camera technical field, including sliding body and slide rail, the lower side of the sliding body is equipped with four drive wheels, the drive wheel is connected with drive motor by wheel shaft, the sliding body inner portion is two layers, the lower layer of the sliding body is integrated STM32 system board, HZ-EVM-RK3576 development board, WiFi module, motor drive module, battery, voltage transformation module, the lower layer of the sliding body is embedded with rudder one, the rudder one output shaft is connected on rudder support, the rudder support is equipped with rudder two, the rudder two output shaft is connected on camera support, the camera support is equipped with camera, the upper side and middle part of the sliding body are each equipped with four pulleys, the middle part of the sliding body is equipped with metal charging head and ultrasonic module left and right, the inner side of the slide rail has charging recess. The utility model uses long slide rail integrated camera, camera field of view can be adjusted, expand the field of view of camera, with practicality.

This invention discloses a multi-channel independent closed-loop automatic temperature control system and method based on an STM32 microcontroller, comprising: a preset acquisition cycle; temperature reading through a main control module to obtain two acquisition data points; calculation of the absolute value of the difference between the two acquisition data points from each sensor; determination of whether to use the current acquisition data based on a comparison of the absolute value of the difference with a preset acquisition data difference threshold; judgment of the effective temperature data to be used based on preset upper and lower temperature thresholds for each channel, and independent control of the start / stop of the buzzer, fan drive module, and heating drive module corresponding to the current channel based on the judgment result; real-time display of the effective temperature data based on the control result; and execution of a preset cycle delay based on the above steps, after which the next cycle begins. This invention achieves precise temperature control and multi-channel independent operation, and can be widely applied to various scenarios requiring multi-channel independent temperature control.

This utility model belongs to the field of fruit sorting technology, specifically disclosing an STM32-based fruit sorting system, including: a main control module, a data display module, a non-standard alarm module, a sorting execution module, a weight detection module, a diameter detection module, a power management module, and a system button module. The main control module is communicatively connected to the data display module, non-standard alarm module, sorting execution module, weight detection module, and diameter detection module via chip pins. The power management module is electrically connected to the main control module, data display module, non-standard alarm module, sorting execution module, weight detection module, diameter detection module, and system button module, providing power to these modules. This system solves the problems of insufficient sorting accuracy, stability, and intelligence in existing technologies.