575 results about "Microcomputer control" patented technology

The invention discloses a wearable optical sensor glove, a system, a gesture recognition method and an article recognition method. Comprising a customized flexible glove body, a flexible circuit board, a photoelectric detector, a flexible force-induced luminescence optical fiber, a multipath gating device and a single-chip microcomputer control module. Wherein the customized flexible glove body is made of a flexible material; the flexible circuit boards are arranged on finger parts and a hand back part of the glove; the photoelectric detector is mounted in the finger region and is electrically connected with the multi-path gating device; the flexible force-induced luminescence optical fiber is fixed on the photoelectric detector in each finger region; the multi-channel gating device and the single-chip microcomputer control module are also integrated on the flexible circuit board on the back of the hand and are electrically communicated with each other. The system has good anti-interference performance, and can realize the functions of high-speed dynamic detection, article identification and the like.

The invention discloses a weighing monitoring prevention and control instrument prevention and control system and method, and relates to the technical field of prevention and control instrument prevention and control equipment. By integrating the data acquisition module, the LORA wireless module, the single-chip microcomputer control module, the video image monitoring module and the infrared correlation position module, real-time weighing monitoring, wireless data transmission, video and image monitoring and anti-cheating functions are realized; according to the invention, the infrared correlation position module is used to ensure that data acquisition is carried out after the target to be weighed completely enters the wagon balance monitoring area, so that data errors caused by the fact that the target to be weighed is not completely loaded on the scale are avoided, and the data accuracy is improved; according to the method, the abnormal weight fluctuation is monitored, comprehensive judgment is carried out from multiple dimensions of residence time, speed stability and motion trail, potential abnormal risks such as overload, overspeed, long-time residence and abnormal driving paths can be comprehensively recognized, and the monitoring comprehensiveness and effectiveness are improved.

The invention provides a wide-voltage intelligent control large-current contactor. Comprising a wide voltage control module which is composed of a rectifier bridge, a voltage acquisition module, a single-chip microcomputer control system and a DCDC conversion module and is used for converting input AC / DC voltage into stable 24VDC output; the wide-current control module is used for controlling the coil to start, the contactor can be in a working state even if power failure occurs, the stability of a power grid is ensured, and the device can be applied to the fields of uninterruptible power supply control cabinets, photovoltaic energy storage, power grid distribution and the like.

The invention provides a common-antenna zero-power-consumption Internet of Things terminal energy management system based on radio frequency energy taking, which comprises a radio frequency antenna, a radio frequency energy taking module, a rectification energy storage module, a low-frequency wake-up module, a backscatter communication module and an MCU control unit, in the MCU control unit, a single-chip microcomputer controls the on-off of a power supply of a sensor through a sensor power supply control pin; a power supply of the sensor and a radio frequency switch of the backscatter communication module are switched on only in a wake-up state, and only power supply to a wake-up pin is reserved in the single chip microcomputer; through a three-layer architecture of energy capture, energy control and energy application, the terminal equipment is completely separated from battery dependence. The system constructs a closed-loop energy management system for energy collection, storage, scheduling and dormancy, the scheme is suitable for the field of passive Internet of Things with strict requirements on power consumption, cost and deployment flexibility, and a feasible solution is provided for an Internet of Things terminal.

The invention discloses a food safety pretreatment and detection device and method, and relates to the technical field of food detection.The device comprises a box body, a control module, a pretreatment module and an ATP biological fluorescence detector, the control module is integrated on the box body, and the pretreatment module is integrated on the box body; the control module comprises a microcomputer control system, a visual operation panel, a nixie tube display and a key regulator; the pretreatment module comprises a concentrator for purging and concentrating a sample, a centrifugal machine for separating the sample, a uniform mixing instrument for uniformly mixing the sample and a water bath kettle for performing constant-temperature incubation on the sample; the ATP biological fluorescence detector is integrated in the box body and is used for carrying out microbial pollution detection on the food contact surface; the control module is suitable for adjusting and controlling operation parameters through the key adjuster when any unit in the concentrator, the centrifugal machine, the blending instrument or the water bath kettle operates, and the operation parameters are displayed on the visual operation panel in real time. The invention further provides a detection method, and on-site, rapid and intelligent food safety detection is achieved.

The invention provides an optimization control method for improving the energy efficiency ratio of the load of a multi-machine-head water chiller-heater unit, which comprises a first compressor system, a second compressor system and a control cabinet, the first compressor system and the second compressor system are both provided with corresponding power meters and microcomputer control modules, and the power meters and the microcomputer control modules are used for detecting the system power. The system further comprises an evaporator, a condenser, a temperature sensor, a flow meter and a pressure sensor, the temperature sensor, the flow meter and the pressure sensor are arranged on corresponding pipelines, the temperature sensor, the flow meter and the pressure sensor are all connected with the microcomputer control module, and differential loading and unloading strategies are adopted according to the load difference of the compressor. The operation parameters corresponding to the optimal COP are screened through multi-cycle iteration, and energy efficiency maximization under partial loads is achieved. The problem that in the prior art, when a multi-machine-head unit runs in a partial load mode, the energy efficiency is low due to lack of fine coordination control is solved, and the energy-saving potential of the unit is remarkably improved.

A 24V voltage switching value output test circuit with a display function belongs to the technical field of acquisition interface printed board testing, and comprises a power supply conversion sub-circuit, a core single-chip microcomputer control sub-circuit, a serial port communication sub-circuit, an output state display sub-circuit and an output driving isolation sub-circuit, the core single-chip microcomputer control sub-circuit comprises an MCU single-chip microcomputer, and the MCU single-chip microcomputer is connected with the serial port communication sub-circuit. The MCU single-chip microcomputer is connected with the bus transceiver, the output state display sub-circuit comprises an output state display displacement buffer chip, the output driving isolation sub-circuit comprises an output driving isolation displacement buffer chip and a photoelectric coupling isolation chip, the output driving isolation displacement buffer chip is connected with the photoelectric coupling isolation chip, and the photoelectric coupling isolation chip is connected with the MCU single-chip microcomputer. The photoelectric coupling isolation chip is connected with an external board card to be tested through a physical input plug. The problems of low test efficiency and poor stability caused by consumption of a large amount of labor and time in the test process of the collection interface printed board are solved, the test time is shortened, and the test efficiency is improved.

The invention discloses a motorcycle self-adaptive vehicle lamp system based on an inertial element, and relates to the technical field of self-adaptive vehicle lamps, the system comprises an inertial sensing module, a vehicle lamp angle control module, a brightness adjusting module and a single chip microcomputer control unit; the inertia sensing module obtains the roll angle delta phi of a vehicle body, the y-axis acceleration and the vehicle speed through a gyroscope and a speed sensor. The vehicle lamp angle control module drives a vehicle lamp to rotate around an x axis and a y axis by using double steering engines, and dynamically adjusts the light axis of the vehicle lamp; the brightness adjusting module senses the environment illumination intensity by means of a light sensor and linearly adjusts the vehicle lamp brightness; the single-chip microcomputer control unit integrates inertia sensing data and illumination data and outputs a steering engine control signal and a brightness adjusting signal, self-adaptive adjustment of the motorcycle lamp along with the posture of a motorcycle body and ambient illumination is achieved, and the safety and the illumination effect of the motorcycle during night driving are improved.

The invention relates to the field of power concentration motor train units, and provides an air compressor air path protection and logic protection device and method, an air path outlet of a first air compressor is connected with a first one-way valve, and an air path outlet of a second air compressor is connected with a second one-way valve; the first air compressor high-temperature protection switch, the first air compressor high-pressure protection switch, the second air compressor high-temperature protection switch and the second air compressor high-pressure protection switch are connected to a motor vehicle microcomputer in parallel through circuits. According to the invention, gas circuit protection and microcomputer control protection are used for double protection in the aspects of circuits and gas circuits, so that the fault range is reduced to the minimum in time; the fault occurrence probability is reduced by using different logic measures; secondary disasters caused by faults of the air compressor are reduced through logic protection; finally, the redundant function of the air compressor is fully played, and the influence on application after the air compressor breaks down is reduced to the maximum extent.

The invention provides a highway maintenance safety operation cooperative prevention and control system integrated with a four-prevention and one-hiding technology. According to the system, the safety of road maintenance operation is improved. The early warning control module is connected with the remote sound-light-electricity early warning unit, the upstream guardrail early warning unit, the forward anti-mistaken-running unit and the lateral anti-mistaken-running unit through the Internet of Things and the single-chip microcomputer control technology, an operation area is monitored in real time, social vehicles are prevented from mistakenly running into the operation area, and the operator safety monitoring module is connected with the early warning module in real time through intelligent wearable equipment. An early warning signal is sent to an operator to remind the operator to avoid risks in time, and the cooperative control module fuses real-time data of all the modules, carries out global target optimization decision, adjusts the working state and ensures cooperative and efficient operation of all the modules. Through the combination of four-prevention and one-hiding technologies, the safety of road maintenance operation is effectively improved, the risk of accidents is reduced, and the operation efficiency is improved.

The invention provides a rear-phase-cut single-live-wire type wall light modulator. The rear-phase-cut single-live-wire type wall light modulator comprises an MOS tube switch loop unit, a single-chip microcomputer control unit and a direct-current power supply unit. Wherein the direct current power supply unit comprises an alternating current voltage waveform acquisition circuit, a direct current voltage drop circuit, an overcurrent protection circuit and a filtering voltage stabilizing circuit. The single-chip microcomputer control unit comprises a single-chip microcomputer, a potentiometer, a triode Q6, a triode Q5 and a triode Q7, the PC2 end of the single-chip microcomputer is connected with the potentiometer, when the resistance value of the potentiometer changes, the voltage collected by the PC2 end changes, and the PA6 end of the single-chip microcomputer outputs different voltage signals to control the on-off of the triode Q6, the triode Q5 and the triode Q7 so as to adjust the on-off time of the MOS tube; the output end of the alternating current voltage waveform acquisition circuit is connected with a PC1 port of the single chip microcomputer to provide a phase reference; after alternating current passes through the direct current power supply unit, 5V direct current is output and is connected with a VDD end of the single chip microcomputer to supply power to the single chip microcomputer; the light modulator can stably modulate light at low brightness.

The invention discloses a supersonic orchard gas explosion deep scarification fertilizer applicator which comprises a crawler-type movable chassis, a gas explosion generating device, an air pressure and fertilization adjusting device, a control device, a soil bulk density detection device, a sensor intelligent detection device and the like. The gas explosion generating device comprises an air compressor, a gas tank, a high-pressure gas pipe and an electromagnetic valve, gas generated by the air compressor is stored through the gas tank, and the electromagnetic valve controls release of the high-pressure gas. The air pressure and fertilization adjusting device comprises an electromagnetic valve, a soil bulk density detection device, a sensor intelligent detection device and a control platform, and the soil bulk density detection device is installed on the crawler-type movable chassis and used for detecting the thickness of a soil compaction layer and determining the deep scarification depth and the air explosion pressure; the sensor intelligent detection device comprises a moisture sensor, a temperature sensor, a nitrogen phosphorus and potassium sensor, a single chip microcomputer control module and a communication module, and the sensors are used for detecting the moisture, temperature and nitrogen phosphorus and potassium content of soil, so that the proper fertilization amount is determined.

The invention relates to the technical field of fatigue detection, and discloses a microcomputer-controlled fatigue test device which comprises a workbench, a turntable and a limiting mechanism are installed on the workbench, the turntable is driven to rotate, the limiting mechanism is fixedly connected to the workbench and located in a hole in the center of the turntable, and a swing mechanism is installed on the turntable. The swing mechanism is installed at the eccentric position of the rotating disc, a first installation block capable of swinging is arranged on the swing mechanism, the first installation block extends to the position over the limiting mechanism, one end of a cable to be detected is installed on the first installation block, and the other end of the cable to be detected is installed on the limiting mechanism; through cooperation of the swing mechanism and the rotating disc, the cable is initially vertically arranged, and the swing mechanism and the rotating disc can drive the vertically arranged cable to carry out torsion test, bending test and bending and torsion superposition test, so that the detection of the cable can better fit the use environment of the cable; and the accuracy of data testing is improved.

The invention discloses a solid-state high-power switch suitable for a DC distribution looped network of a more-electric aircraft. The solid-state high-power switch comprises a main switch circuit, an auxiliary power supply circuit, an energy absorption circuit, a detection circuit and a single-chip microcomputer control circuit, the main switch circuit is used for supporting bidirectional flow of high-power current; the auxiliary power supply module comprises a switching power supply which is used for outputting the direct-current looped network voltage to direct-current power supply voltage required by each module, and the switching power supply comprises transformer isolation; the detection circuit comprises a current detection unit and a voltage detection unit and is used for detecting current and voltage signals of the circuit; the single-chip microcomputer control circuit is used for receiving measurement data of the detection circuit, carrying out initial processing on the measurement data and driving an IGBT to be switched on or switched off. According to the solid-state high-power switch, the problems that a traditional mechanical switch is low in response speed, prone to abrasion, complex in maintenance and the like are solved through the solid-state switch technology, and the reliability and the operation efficiency of a power distribution system are improved.

The invention provides a multi-sensor adaptive anti-interference working well environment detection system and method, and the system comprises a single-chip microcomputer control panel, a temperature and humidity monitoring sensor, a four-in-one combustible gas detector, a dust particle detector, a differential pressure transmitter, and a cloud server. The temperature and humidity monitoring sensor, the four-in-one combustible gas detector, the dust particle detector and the differential pressure transmitter are in circuit connection with the single-chip microcomputer control panel, the single-chip microcomputer control panel is in wireless communication with the cloud server, the detection method dynamically adjusts the weight distribution of the sensor through the feature level attention module, a lightweight neural network and a hard redundancy check rule are combined, and the detection accuracy is improved. Compared with the prior art, the method has the advantages that the low false alarm rate is kept, the model size is low, and the method is suitable for industrial field deployment.

The utility model belongs to the technical field of switching power supplies, and relates to a single-chip microcomputer control-based battery internal resistance detection circuit, which is characterized in that a single-chip microcomputer I / O1 port and a single-chip microcomputer I / O2 port respectively give high-level control signals in an extremely short time to control the discharge of a battery, when a power supply starts a battery internal resistance detection function, firstly, the I / O1 is made to be at a high level, Q13 is conducted, PC1A is conducted, and the Q13 is turned on; the secondary side PC1B of the optocoupler is conducted, the Q12 is driven, the battery is subjected to large-current discharging through the R61 and the Q12, the voltage at the two ends of the battery is tested to be U1, I / O1 and I / O2 are conducted at the same time after millisecond-level discharging is conducted, the R61 and R65 start parallel discharging at the moment, the voltage U2 at the two ends of the battery can be obtained, and the voltage U2 of the two ends of the battery can be obtained through the voltage difference value and the current difference value of two times of measurement. According to the utility model, the internal resistance of the battery can be easily calculated according to the Ohm law, and the problems that the internal resistance test of various batteries is inaccurate on the premise of different discharge curves, and the internal resistance test precision of the battery is influenced by the height of discharge platforms of different batteries due to the increase of the internal resistance of the battery can be solved.

The present invention provides a multi-output dimming power supply with switchable output modes and its use method, comprising: a dimming signal processing circuit, at least two PWM regulation modules, an electromagnetic filter circuit, a switching power supply main control circuit, a transformer, a rectifier filter circuit, a feedback regulation loop, a single-chip microcomputer control circuit, and a mode-switching circuit connected in sequence; wherein the feedback regulation loop is further connected to the main control circuit, and a signal input of each PWM regulation module is connected to each control terminal of the single-chip microcomputer control circuit. A positive pole of each PWM regulation module is connected to an output of the rectifier filter circuit and a load, respectively, and a negative pole is connected to the load. The present invention is capable of selecting different output modes for different applications, facilitating the achievement of superior dimming effects.

The invention relates to a visual on-load voltage regulation tap switch control system, device and medium, which comprises a single chip microcomputer control circuit, the single chip microcomputer control circuit is connected with a signal processing circuit and a power supply circuit, and the signal processing circuit is connected with a voltage zero cross detection circuit, a voltage sensor and a data acquisition unit. The voltage zero-cross detection circuit, the voltage sensor, the data acquisition unit and the power supply circuit are all connected with the isolation reduction transformer, and the isolation reduction transformer is connected with the low-voltage side voltage of the distribution transformer; the single-chip microcomputer control circuit is further connected with a switch position sensor, a communication circuit, a switch drive circuit and a thyristor trigger circuit. The communication circuit is in communication connection with a remote computer through an RS485. The method has the advantages of realizing automatic voltage regulation conversion, stabilizing voltage, accurately setting visual parameters and realizing non-impact voltage regulation.

The utility model discloses a multi-signal fusion LED lamp switch intelligent control system, which belongs to the technical field of intelligent illumination, and comprises an electric control module and an environment detection module, the electric control module comprises a single chip microcomputer control module, a power supply module, a working mode change-over switch, a manual switch and a relay; the single-chip microcomputer control module comprises a single-chip microcomputer U1, a crystal oscillator circuit and a reset circuit. A light on-off control program is stored in the single-chip microcomputer U1. The environment detection module comprises a human body induction module and an environment light detection module. The environment light detection module comprises an ultraviolet sensor P2 and a voltage comparison circuit. According to the utility model, the electric control module and the environment detection module are used for detecting the existence of indoor personnel and the intensity of ambient light to intelligently control the on-off of indoor LED light, the ambient light and the LED light can be automatically identified, the mutual interference of LED light sources is avoided, the automatic control of the light is more accurate, the mode change-over switch is arranged, a user can select a manual mode to decide the on-off of the light by himself / herself, and the user experience is improved. The use flexibility is improved.

The utility model discloses a photodiode dark current testing device, comprising an LED lamp, a light shield, a dual-channel power supply, a desk type universal meter, a one-chip microcomputer control board and a multi-channel test board, the light shield is covered on the multi-channel test board, the multi-channel test board is provided with PD sockets having the same number as the channels of the multi-channel test board, and the PD sockets are connected with the desk type universal meter. The PD socket is composed of a 4P socket and Y-shaped sockets arranged side by side. After the scheme is adopted, the efficiency is greatly improved through multi-channel testing, and the vertical pins can be automatically tested through the design of the Y-shaped socket.

The invention discloses a control starting system of a hybrid mower. Relates to the field of generators and solves the problem that an existing mower is highly dependent on a storage battery. The generator is started through a pull disc, the output end of a charging coil of the generator is connected with a generator rectification module, alternating current is converted into direct current, then the direct current is transmitted to a power supply DC-DC conversion module, and the direct current is supplied to a single-chip microcomputer and a driving execution unit through voltage stabilization processing and charges a storage battery. The auxiliary power supply module receives the rectified direct current and converts the rectified direct current into multi-level stable low-voltage power to meet various peripheral requirements; the generator rotating speed acquisition module acquires and converts rotating speed signals and provides data support for single-chip microcomputer control. When the storage battery is normal, the system can be started to operate, the power supply DC-DC conversion module replaces a traditional rectifier to charge the storage battery, and continuous operation is guaranteed; and when the storage battery is lack of electricity or damaged, after the pull disc starts the generator, the rectification module, the DC-DC conversion module and the auxiliary power supply module work cooperatively, so that operation interruption is avoided, and the emergency operation capability is improved.

The multifunctional water purifier comprises an outer shell, a microcomputer controller is installed in the outer shell, a waterway control assembly comprises a first low-voltage switch installed at a water inlet of the outer shell, the first low-voltage switch is electrically connected with a water inlet electromagnetic valve, and the water outlet end of the water inlet electromagnetic valve is connected with a filtering mechanism; the filtering mechanism comprises a PE filter element and a multi-medium filter element, the water outlet end of the high-pressure water pump is connected with an RO membrane filter, the water outlet end of the RO membrane filter is connected with a three-water-outlet combined water nozzle through a first high-pressure switch, the water outlet end of the RO membrane filter is connected with a waste water flushing electromagnetic valve, and the three-water-outlet combined water nozzle is connected with the electrolytic bath, so that purified water can be provided, and the water quality of the electrolytic bath is improved. The water purifier is simple in structure, convenient to operate and capable of preparing electrolyzed reduced water and oxygen-enriched disinfectant fluid, the requirements of users for various functional water are met, different types of water can be prepared through convenient switching in the same equipment, and the problems that an existing water purifier is single in function and cannot meet diversified water requirements are effectively solved.

The invention relates to the technical field of textile, solves the problem that a bobbin winder cannot detect the abnormal state of yarn in time, and particularly discloses a bobbin winder tension control system and method.The control system comprises a tension sensor used for feeding back actually monitored tension signals to a single-chip microcomputer control system; the electromagnetic tensioner is used for adjusting the positive pressure of the electromagnetic coil on the yarn; the image acquisition system is used for acquiring yarn tensioning radian state image information and feeding back the information to the single chip microcomputer control system; the single chip microcomputer control system is used for receiving the signals, judging whether the signals are matched or not and controlling the current of the electromagnetic tensioner; the display operation terminal is used for providing a human-computer interaction interface; the control method comprises the steps of S100, system initialization setting, S200, real-time data collection, S300, data comparison and judgment and S400, tension adjustment. The method is used for accurately controlling the yarn tension of the bobbin winder, has the function of judging whether the yarn state is abnormal or not by combining images, and can feed back the abnormal working state of the bobbin winder in time.

The invention provides a moisture-proof and dust-proof ventilation type active power filter, and relates to the technical field of electric power. The moisture-proof and dust-proof ventilation type active power filter comprises a microcomputer controller, an installation box, a dehumidification box and a filter body. A second fan sucks away air in the mounting box, air enters through multiple sets of ventilation windows at the same time, the purpose of ventilation and heat dissipation is achieved, a filter screen is arranged on the inner side wall of each ventilation window and can play a dustproof role in the ventilation process, dehumidification particles adsorb moisture in the mounting box to play a damp-proof role, and a first fan blows the filter screens in the reverse direction; the filter screen is subjected to dust removal and regeneration, the manual maintenance frequency is effectively reduced, moisture absorption saturated dehumidification particles rotate to the position above the air inlet hole, the microcomputer controller controls the electric heating wire to be powered on, heated air is blown into the corresponding dehumidification cavity through the second fan, and therefore the purposes of heating and regeneration of the dehumidification particles are achieved. And the manual maintenance frequency is further reduced.

The invention provides a testing device and a testing method, the testing device comprises a power supply module, a switch module, a load module, a single-chip microcomputer control module and a counter module, the switch module comprises a first switch, a second switch and a third switch; a first voltage output end of the power supply module is connected to an enabling end of a to-be-tested device after being connected in series with the second switch, and is connected to an input end of the to-be-tested device after being connected in series with the third switch, the load module is connected to an output end of the to-be-tested device after being connected in series with the first switch, and the load module is connected to different loads to the to-be-tested device under the control of the first switch; the counter is used for monitoring rising edge and falling edge times, high level duration time and low level duration time of an output signal of the device to be detected; the single-chip microcomputer control module outputs a first control signal to the first switch, outputs a second control signal to the second switch, outputs a third control signal to the third switch according to the test instruction, and judges whether the test is qualified or not according to the monitoring result.

The invention discloses an optical multichannel gas sensor based on an NDIR principle, and relates to the technical field of infrared gas sensors. The device is composed of an infrared absorption light system composed of an infrared light source, a gas chamber and a four-channel thermopile detector, a light source voltage stabilization modulation circuit, a thermopile weak signal conditioning circuit, a high-precision analog-to-digital conversion circuit and a single-chip microcomputer control and communication circuit system. The device achieves the functions of compact structure and real-time measurement of various gases; a low-noise zero-drift self-stabilization signal processing circuit is realized, a low-power-consumption 24-bit # imgabs0 # sampling circuit is designed, accurate real-time digital signals can be obtained without a complex data processing algorithm, the design has the characteristics of wide range, high precision, good stability, long service life, miniaturization and the like, various types of gases can be measured by replacing a sensor end, and the measurement accuracy is high. The problems that a traditional infrared optical gas sensor is high in cost, large in size, inconvenient to carry, long in detection result time consumption and prone to environmental interference are solved.

The invention belongs to the field of coding machines, and provides a coding machine electric control system based on single-chip microcomputer development, which comprises a single-chip microcomputer control module used as a control core of the system and used for receiving various input signals and outputting control instructions; the sensor module is used for detecting whether a coded article reaches a preset coding position or not and sending a detection signal to the single chip microcomputer control module; the execution mechanism is used for driving the code printing head to complete code printing action according to the control instruction of the single chip microcomputer control module; the image recognition module is arranged at the position adjacent to the code printing area and used for collecting the image of the object to be printed after code printing and recognizing whether the code printing position and content deviate from a preset standard or not; the calibration feedback module is used for sending the code printing offset information recognized by the image recognition module to the single chip microcomputer control module; and the delay control module is arranged in the single chip microcomputer control module and is used for dynamically adjusting a coding delay parameter or a displacement compensation parameter of an execution mechanism according to the received coding offset information.

The invention discloses an intelligent real-time dynamic precise laser weeding method and device, and relates to the field of laser weeding, and the weeding device comprises an image acquisition module, a processor, a laser reflector, a single-chip microcomputer control module, an IMU sensor, a high-precision encoder and the like. Wherein the image acquisition module is used for acquiring field crop and weed images, the processor processes the acquired crop and weed images based on an LW-YOLO model, extracts weed position coordinate information, and performs optimal planning on a laser scanning path; the laser reflector is used for controlling the laser to irradiate a target position through the rotation of the laser reflector; the single-chip microcomputer control module is used for controlling the phase voltage of the brushless motor, transmitting a command issued by the processor to the sensor and the execution mechanism, and improving the positioning precision of the motor through an FOC algorithm. The weeding precision and efficiency are remarkably improved, the waiting time during static weeding is shortened, and the advantages of high precision and high efficiency are achieved.

The wearable wireless transmission multi-channel gastric electric signal acquisition system comprises an electrode signal input module, an analog front-end circuit, an analog-to-digital conversion module, a single chip microcomputer control and feedback module, a wireless transmission module, terminal equipment and a power supply module, the analog front-end circuit comprises a front input amplifier, a second-order active band-pass filter and a voltage-stabilizing buffer amplifier; the characteristics of extremely low amplitude and low frequency of a stomach electric signal are considered, a fully differential input and differential three operational amplifier circuit is used as an input stage, and the signal is amplified by thousand times, so that the magnitude that a subsequent circuit can well process is achieved, and the precision and the stability of the system are improved. And the signal sequence is further filtered and denoised through a second-order active low-pass direct-current anti-aliasing filter and a second-order active high-pass filter, so that the integrity of the signal is ensured. And secondly, the signal becomes stable through a low-power voltage-stabilizing amplifying circuit, so that the ADC sampling circuit can effectively sample the gastric electric signal at a relatively high sampling frequency.