519 results about "Laser probing" patented technology

The invention relates to the technical field of optical engineering, in particular to an AI silicon carbide lens-oriented aspheric laser polishing precision online detection and feedback system. Comprising a detection module; the data processing module is electrically connected with the detection module and used for constructing a lens surface three-dimensional model and calculating polishing precision parameters; the feedback control module is electrically connected with the data processing module, is used for generating a feedback control strategy and comprises a strategy generation unit and a parameter optimization unit; an execution module; and an intelligent learning module. According to the design, a laser measuring head, an energy sensor array and an environment sensor are integrated through the detection module, synchronous acquisition of multi-dimensional data such as surface profile, laser energy distribution and environment parameters is realized, and three-dimensional point cloud data with consistent time and space are generated through multi-modal fusion processing (time domain synchronization, space registration and feature enhancement) of the data preprocessing unit; the physical essence of the polishing process is completely represented, and the detection comprehensiveness and the data relevance are improved.

The invention belongs to the technical field of laser flatness testing, and particularly relates to a modularized box room installation flatness testing device which comprises a fixed frame and a laser detector located in the fixed frame, and further comprises a moving mechanism arranged on the inner side wall of the fixed frame, and the laser detector is arranged on the moving mechanism. The motor is used for driving the laser detector to move multidirectionally; the first electric push rod is fixedly arranged at the bottom of the moving mechanism, a mounting plate is fixedly arranged at the moving end of the first electric push rod, and the laser detector is fixedly mounted on the lower surface of the mounting plate. Through multi-dimensional innovation of optical protection, a self-adaptive mechanical structure, intelligent environment control, automatic marking and the like, the precision and efficiency of modular box room installation flatness detection are remarkably improved, and manual dependence and environment interference are reduced through intelligent design.

The invention discloses ultrafast photo-thermal PCR amplification equipment and a use method. The ultrafast photo-thermal PCR amplification equipment comprises a shell, and a laser probe and an infrared temperature sensor are arranged in the shell; a chip rack is arranged in the shell, and a chip to be tested is placed in the chip rack; the laser probe is located on one side of the chip frame, the infrared temperature sensor is located on the other side of the chip frame, and the laser probe inclines upwards in the vertical direction. An embedded industrial all-in-one machine is installed on the shell, and the output end of the infrared temperature sensor is connected with the input end of the embedded industrial all-in-one machine. An excitation light source of the laser probe and a coupling non-contact infrared temperature measurement sensor can realize temperature control of nanoparticles in different batches, the ultrahigh temperature change requirement of PCR is met, infrared temperature measurement control replaces a traditional thermocouple to serve as a temperature feedback device, the phenomenon of reagent pollution caused by contact measurement is avoided, and the detection accuracy is improved. The accuracy of later data detection is ensured, and the laser probe is inclined upwards along the vertical direction, so that a PCR reaction area is fully covered.

The invention relates to the technical field of laser measuring instruments, and discloses a device for measuring roadway roof separation by laser, which comprises a roadway roof, a laser probe, a first threaded pipe, a second threaded pipe and a mounting mechanism, and is characterized in that the laser probe is mounted on the first threaded pipe and is connected with a cable; the mounting mechanism is used for mounting the second threaded pipe on the first threaded pipe; the mounting mechanism comprises a base arranged on the roadway top plate, a rotating mechanism and a lifting mechanism are arranged on the base, and the lifting mechanism is used for feeding the laser probe, the first threaded pipe and the second threaded pipe into drill holes formed in the roadway top plate. The device for laser measurement of roadway roof separation overcomes the defects that in the prior art, equipment is large in occupied area and depends on the stability of a bottom plate, and the measurement precision is prone to being interfered, and the roof separation measurement device is more efficient, more accurate and more suitable for the underground complex environment.

The invention provides a data processing method of a laser radar and a laser detection system. The data processing method comprises the following steps: S11, acquiring a frame of point cloud data of the laser radar; s12, determining a set of ground points in the frame of point cloud data; and S13, determining calibration parameters of the laser radar point cloud according to the set of ground points. In the embodiment of the invention, after the ground point set is extracted by using the GPU, the point cloud ground level is calibrated at a high speed, so that the radar 3D point cloud ground is aligned with the ground level of the physical world. According to the embodiment of the invention, the ground point in the 3D point cloud can be quickly obtained, the ground point is drawn by using the GPU, and the laser radar point cloud calibration parameter is obtained by using the projection of the ground point in the preset plane, so that the point cloud of the laser radar can be calibrated to be close to a world coordinate system and be basically aligned with the horizontal plane under the world coordinate system.

The invention provides a field-free on-orbit calibration method for a spaceborne photon counting laser radar, and relates to the technical field of spaceborne photon counting laser radars. According to the method, combined registration is carried out on a high-precision airborne laser point cloud and a high-resolution optical remote sensing image, and the plane positioning precision of the airborne laser point cloud is firstly improved by combining the plane positioning advantage of the high-resolution optical remote sensing image and the elevation precision advantage of the airborne laser point cloud; and the satellite-borne photon counting point cloud is matched with the corrected airborne laser point cloud, and the pointing error and the system ranging error of the satellite-borne photon counting laser radar are corrected, so that the field-free in-orbit geometric calibration of the satellite-borne photon counting laser radar is realized. According to the method, dependence on a ground calibration field laser detector is avoided, the method has the advantages of being high in adaptability, high in calibration precision and wide in application range, and a new technical means is provided for improving field-free on-orbit calibration of a spaceborne photon counting laser radar height measurement system.

The invention provides a high-precision flow control system and a high-precision flow control method aiming at the gas flow control problem of silicon nitride film deposition in a semiconductor manufacturing process. In terms of the system, three gas inlet pipes convey different gases, and the explosion risk is reduced through graded mixing of a three-way pipe; the T-shaped design of the second three-way pipe utilizes gravity to assist mixing; each air inlet pipe is provided with a valve and a sensor to provide comprehensive data support; the mixer is specially designed to fully mix gas; a specific gas flow gradient is matched with a multi-stage mixing process to realize accurate control of a stoichiometric ratio; and high-precision data is provided by a specific angle of the laser detector and an advanced detection technology. The method comprises the steps of gas pipeline distribution conveying and premixing, multi-parameter fusion measurement, self-adaptive control, dynamic calibration, mixer optimization and output and the like. The silicon nitride thin film deposition quality is improved, the system safety and the flow control precision are improved, and the production cost and the safety risk are reduced.

The invention discloses an infrared four-waveband composite annular aperture folded imaging optical system, belongs to the technical field of optical catadioptric optical paths, and aims to solve the problem that 1550nm / 1064nm dual-laser and medium-wave / long-wave infrared four-waveband composite detection is difficult to realize at the same time in the conventional annular aperture imaging technology. The system comprises a primary mirror, a secondary mirror, a 1064nm laser spot correction mirror, a 1550nm laser spot correction mirror, a 1064nm laser spectroscope, a 1550nm laser spectroscope, a broadband infrared detector, a 1550nm laser detector and a 1064nm laser detector. And high-performance common-aperture composite detection of 1064nm / 1550nm dual laser and medium-wave / long-wave infrared four wavebands is realized through a multi-stage light splitting mechanism. The limitation that a traditional annular aperture system is single in wave band is broken through, and the all-weather sensing and target recognition capability of the system in a complex environment is remarkably improved.

The invention discloses a photovoltaic vehicle-mounted laser detection device with a cleaning function and an application method, and belongs to the technical field of vehicle-mounted laser detection, the photovoltaic vehicle-mounted laser detection device comprises a mounting base and a supporting plate, a machine body is fixedly mounted on the upper surface of the supporting plate, and a sweeping assembly and an air blowing assembly are arranged on the upper surface of the supporting plate; according to the photovoltaic panel cleaning device, the cleaning assembly is arranged, a transmission gear can drive a rotating rod to rotate on a limiting sleeve under the action of a fixed rack, at the moment, the rotating rod can drive a cleaning roller to rotate and move on a photovoltaic panel at the same time, dust on the photovoltaic panel is cleaned, and the photovoltaic panel can be automatically cleaned at regular time; on one hand, the situation that the light energy absorption capacity of the photovoltaic panel is reduced due to too much dust coverage is avoided, the endurance time of the photovoltaic vehicle-mounted laser detection device is further guaranteed, on the other hand, abrasion to the photovoltaic panel during dust sweeping can be reduced through rolling sweeping, and the absorption efficiency of the photovoltaic vehicle-mounted laser detection device is guaranteed.

The invention relates to a sensor cleaning control method of an unmanned vehicle and a related device thereof, a sensor of the unmanned vehicle is provided with a pollution monitoring unit, and the method comprises the following steps: obtaining multi-element pollution data collected by the pollution monitoring unit; wherein the pollution detection unit at least comprises an image acquisition module and a laser detection module; the multi-element pollution data comprises image data acquired by the image acquisition module and laser data acquired by the laser detection module; the image data and the laser data are analyzed to obtain a pollution result of the sensor, and the pollution result is used for indicating the pollution degree of the sensor; when the pollution result indicates that the sensor is in a pollution state, determining a cleaning strategy based on the multi-element pollution data; and controlling a cleaning system of the unmanned vehicle to clean the sensor according to the cleaning strategy. According to the scheme provided by the invention, the pollution type and degree of the sensor can be accurately identified, a targeted cleaning strategy is adopted, and the cleaning efficiency and the cleaning capability are improved.

The invention discloses a frequency-modulated continuous wave laser radar, and relates to the technical field of laser detection. The laser radar comprises at least two laser light sources, an optical switch assembly and an optical chip. The wavelengths of light signals emitted by the laser light sources are different from each other. The optical switch assembly comprises an optical switch and a wavelength division multiplexer. The wavelength division multiplexer comprises at least two first input ends and a first output end, the first input ends are correspondingly and optically connected with the optical switches, and the first output end of the wavelength division multiplexer outputs optical signals with different wavelengths in a time-sharing mode.

The invention discloses a measuring machine for detecting defects of a constant velocity universal joint component, and aims to solve the problems that the existing equipment is low in double-reference alignment efficiency, poor in precision and easy to be polluted and interfered. The device comprises a workbench with a center avoiding hole, a detection execution unit comprising a detachable contact type or laser measuring head, a motion driving unit driving the measuring head to move in a three-dimensional mode, a reference positioning unit comprising a double-vision assembly and a positioning adjusting assembly, an electric control unit and a cleaning auxiliary assembly. The electric control unit cooperates with the double-vision assembly to collect inner hole and outer circle references and controls the positioning adjusting assembly to finely adjust the position of a workpiece, and double-reference alignment is achieved. The measuring machine can improve the positioning precision and efficiency, enhance the workpiece clamping stability and the equipment universality, reduce the detection error caused by pollution, and guarantee the reliable detection.

The invention relates to the technical field of laser measurement, and discloses a differential shell shaft hole alignment measurement device, which comprises a detection table and an adjusting arm movably arranged on the detection table, and a laser detection head is arranged at the end part of the adjusting arm; the workpiece positioner is arranged on the table top of the detection table, an installation arm is rotationally arranged on the workpiece positioner, a limiting piece and a bearing round rod are installed on the middle section and the end of the installation arm respectively, and the limiting piece is used for wrapping type limiting of the tail of a differential shell workpiece; and the rotating wheel is rotationally mounted at the end of the mounting arm, an elastic adhesion piece is arranged on the outer side of a middle shaft in the middle of the rotating wheel, and the rotating wheel and the elastic adhesion piece achieve rotation regulation and control of the differential mechanism shell around the central axis of the differential mechanism shell. According to the shaft hole alignment measuring device suitable for the differential shell, adjustment and control of assembly of the differential shell are facilitated, subsequent laser measurement of shaft hole alignment is facilitated, and the measurement efficiency and accuracy are improved during laser measurement of shaft hole alignment.

The invention provides a roadway full life cycle deformation monitoring system and method based on multidirectional laser ranging, and relates to the technical field of coal mine roadway surrounding rock deformation monitoring. Calculating the horizontal distance between the device placement point and the side wall of the roadway and the vertical distance between the device placement point and the distance measurement point before and after deformation of the roadway, and further calculating the horizontal distance, the vertical distance and the linear distance of the distance measurement point before and after deformation of the roadway; the monitoring angle alpha of the laser probe can be adjusted, and calculation of deformation at different positions of the side wall of the roadway is achieved.

An obstacle avoidance control method for a robot and based on Bézier curve fitting, the obstacle avoidance control method for a robot comprising: step S1, a robot emitting a line laser in front of the robot; step S2, the robot collecting, in real time, obstacle contour points detected by the line laser, and acquiring the position coordinates of the obstacle contour points; step S3, setting a reference detection area (EFGH) on the side of the robot that is close to obstacles (#1, #2), and then using the position coordinates of obstacle contour points delineated by the reference detection area (EFGH) to perform Bézier curve fitting, so as to generate obstacle fitting curves (U1, U2); and step S4, the robot deviating from the obstacle fitting curves (U1, U2) by a preset obstacle avoidance margin (D) to obtain target obstacle avoidance curve trajectories (A2B2, A5B4); and then, the robot starting to move from the current position point to the target obstacle avoidance curve trajectories (A2B2, A5B4), and then moving according to the target obstacle avoidance curve trajectories (A2B2, A5B4).

The present disclosure relates to the technical field of optoelectronics, and provides a chip for laser detection, a LiDAR, a vehicle, and a photodiode. The chip for laser detection comprises a substrate, an epitaxial layer, an operating circuit, and a protection circuit. The epitaxial layer is formed over the substrate. The operating circuit is formed on the epitaxial layer. The operating circuit comprises a first photodiode and is configured to detect incident laser at an operating voltage. The protection circuit is formed on the epitaxial layer. The protection circuit is connected in parallel to the operating circuit and comprises a second photodiode. The turn-on voltage of the protection circuit is greater than the operating voltage, and the impedance of the protection circuit when it is turned on is less than the impedance of the operating circuit when it is turned on. The present disclosure can reduce the degree of damage caused by electrostatic discharge to operating circuits in chips.

The invention discloses a pyrolytic particle detection device, which relates to the technical field of fire detection and comprises an air pump, a heating cavity, a conducting electromagnetic valve, a refrigeration cavity, a laser detection cavity, an exhaust electromagnetic valve, a weak photoelectric pulse signal processing unit, a comprehensive control and data processing unit and an RS485 communication unit. The sucking pump, the heating cavity, the conduction electromagnetic valve, the refrigeration cavity, the laser detection cavity and the exhaust electromagnetic valve are sequentially connected through 8 mm silica gel air pipes to form a complete air path system; the invention provides a pyrolytic particle detection device which can accurately detect pyrolytic particles in air in real time, can digitally display the content of the detected pyrolytic particles, can avoid interference of environmental factors such as dust, water mist, strong light and electromagnetism, and provides an effective detection device for extremely early warning of a fire hazard. And sufficient favorable time for several hours is provided to control combustion conditions, so that event expansion is avoided.

The invention provides a data processing method of a laser radar and a laser detection system. The data processing method comprises the following steps: S101, acquiring a frame of point cloud data of the laser radar; s102, for one data point in the frame of point cloud data, obtaining at least two first adjacent data points; and S103, according to the data point and the at least two first adjacent data points, determining whether the data point is a ground point. The embodiment of the invention provides a technical scheme for identifying the ground points in the point cloud, and the technical scheme can be different from a conventional scheme based on a CPU (Central Processing Unit) to extract the ground points, the GPU can be used for accelerating the extraction operation, and the time consumed by preprocessing is reduced. And by adopting a secondary verification scheme, the robustness of ground point confirmation is improved.

The invention discloses a femtosecond ultrasonic wafer metal film multi-layer measurement system, method and device, and the system comprises a sample platform which is used for flatly placing a wafer sample to be measured; the main light path is used for generating laser and separating the laser into pumping laser and detection laser; the pumping laser path and the detection laser path are respectively used for guiding the pumping laser and the detection laser to be successively projected onto the surface of the wafer sample; the receiving unit is used for processing a reflected light beam returned from the surface of the wafer sample and comprises a pump light beam eliminator to isolate residual reflected light of the pump laser in the reflected light beam; the detection laser detection assembly is used for collecting the reflected detection laser, processing the reflected detection laser and converting an optical signal into an electric signal to obtain reflected signal intensity change data of the reflected detection laser; and the controller is used for acquiring the flight time of the detection laser based on the reflected signal intensity change data so as to acquire the thickness of the wafer metal film. And the pump light beam eliminator reduces pump light leakage and scattering, and the SNR (Signal to Noise Ratio) is improved.

The invention provides a circuit for laser detection, a laser radar and a carrier, and relates to the technical field of photoelectricity. The circuit for laser detection comprises a working circuit and a protection circuit connected in parallel with the working circuit. The working circuit comprises a first photodiode and is configured to detect echoes under working voltage, the protection circuit comprises a second photodiode, doped ions of the second photodiode and doped ions of the first photodiode are distributed in the longitudinal direction, and the break-over voltage of the protection circuit is larger than the working voltage. And the impedance of the switched-on protection circuit is smaller than that of the switched-on working circuit. According to the invention, the degree of damage to the working circuit caused by electrostatic discharge can be reduced.

The invention relates to the technical field of coated white board thickness detection, and discloses a thickness detection device on a coated white board production line, which comprises a rack, a thickness detection mechanism is arranged above the rack, a coated white board body is arranged on the thickness detection mechanism, and the coated white board body is arranged on the rack. And an electrostatic dust collection mechanism is arranged below the coated white board body. According to the thickness detection device on the coated white board production line, chippings can be generated when a coated white board body is subjected to thickness measurement through the thickness detection mechanism, the chippings can be conveniently adsorbed through an electrostatic dust collection mechanism, and the distance between white board clamping plates can be conveniently controlled by clamping supporting plates through cooperation of adjusting sliding holes and moving sliding blocks; the coated white board body can be conveniently and flexibly clamped by the white board clamping plate and can be conveniently changed according to the change of the winding and unwinding height of the coated white board body, the distance between the two sides of the coated white board body can be conveniently measured by the laser probe, the thickness of the coated white board body can be further obtained, and convenience and rapidness are achieved.

The complex water environment multi-wavelength laser attenuation simulation system comprises a multi-wavelength laser emission module, a water body environment simulation module, a light splitting module and a power detection module. Seawater characteristics such as temperature, salinity and turbulence intensity of a water body are accurately controlled, parameters such as turbidity of the water body are changed by adding suspended particles such as diatomite and calcium carbonate, and high-precision simulation and measurement of laser attenuation characteristics in different underwater environments are realized by combining a multi-wavelength laser radar technology. According to the multi-wavelength underwater test system, through difference analysis among multiple wavelengths, environment simulation of laser detection capability and substance identification in different water body environments such as turbulent flow and quantitative influence among multi-wavelength laser can be effectively simulated; more comprehensive transmission characteristic experiment test verification and capability simulation under multi-wavelength laser are provided for underwater target identification, marine environment monitoring, resource exploration and other applications, and the multi-wavelength marine detection potential of future laser is expected to be improved.

The utility model discloses a cotton feeding roller gear fracture alarm device which comprises a cotton feeding roller body and a laser detector, a supporting shaft is arranged in the cotton feeding roller body, a detection shaft is arranged at one end of the supporting shaft, a fixing mechanism is arranged between the detection shaft and the supporting shaft, a fixing seat is arranged above the cotton feeding roller body, and a gear is arranged on the fixing seat. The utility model relates to the technical field of fine opening equipment, in a normal state, the laser detector can receive long and short signals which uniformly and alternately appear, and when cotton fibers or impurities are clamped into the gear on the supporting shaft to influence the operation of the gear, the laser detector is driven to rotate, and the gear is driven to rotate. And long and short alternating signals are not uniform, so that cotton fibers or impurities need to be cleaned in time.

The utility model relates to the technical field of laser probe fixing, and discloses a laser probe fixing device for oral disease treatment, which comprises a fixing seat, the surface of the fixing seat is rotatably connected with a telescopic main rod through a damping rotating shaft, and a telescopic auxiliary rod is inserted into the telescopic main rod. First threaded holes are formed in the surface of the telescopic main rod and the surface of the telescopic auxiliary rod correspondingly, and first fixing bolts are in threaded connection with the interiors of the first threaded holes. According to the laser probe fixing device for oral disease treatment, through cooperative arrangement of a first damping bearing, a first damping rotating block, a first adjusting rod, a second damping bearing, a second damping rotating block and a second adjusting rod, the direction of a laser probe can be adjusted through the first damping bearing and the second damping bearing during use; and the angle of the laser probe is adjusted through the first damping rotating block and the second damping rotating block, so that the effect of adjusting the direction and the angle of the laser probe is achieved.

The invention discloses a compact InGaAs detector with a built-in current-voltage conversion and conditioning circuit, a laser detection device and a laser detection method, which are mainly used for solving the technical problems that the existing InGaAs detector cannot directly and stably output a voltage signal and needs to be externally connected with a complex current-voltage conversion and conditioning circuit to obtain the voltage signal. The invention relates to a compact InGaAs detector with a built-in current and voltage conversion and conditioning circuit, which comprises a shell and a light window, the shell and the light window form an airtight cavity, and an InGaAs chip, the current and voltage conversion circuit, the conditioning circuit and a diaphragm are arranged in the airtight cavity. The InGaAs chip converts a received optical signal into a current signal, the current and voltage conversion circuit converts the current signal into a voltage signal, and the conditioning circuit conditions the voltage signal and outputs a conditioning signal Vout. The technical problem that a common InGaAs detector directly outputs a current signal is solved.

This application relates to an integrated MEMS two-dimensional scanning detection system, a capacitance angle measurement method, and an apparatus. The integrated MEMS two-dimensional scanning detection system includes: a laser detection component and a magnetic circuit component disposed below the laser detection component. The laser detection component is an integral structure formed by connecting a scanning lens to a riveting area via a Y-shaped two-dimensional rotation axis. The magnetic circuit component is a hollow structure enclosed by two types of magnetic circuit modules, which are used to generate magnetic fields in different directional dimensions. The riveting area of ​​the laser detection component is connected to the magnetic circuit modules in the magnetic circuit component. The scanning lens is located in the cavity enclosed by multiple magnetic circuit modules, and under the drive of magnetic fields in different directional dimensions, the Y-shaped two-dimensional rotation axis drives the scanning lens to rotate in the corresponding directional dimension within the cavity. This integrated MEMS two-dimensional scanning detection system can reduce the overall size of the electromagnetic scanning mirror.

The invention provides an industrial equipment foundation structure vibration detection device. The detection device comprises a detection device body, a laser detection head and an auxiliary shading assembly, the auxiliary shading assembly comprises a first round tube and a second round tube movably sleeved with the first round tube, the second round tube fixedly sleeves the laser detection head, and a laser measuring head of the laser detection head is exposed out of the second round tube; two sliding grooves are symmetrically formed in the outer wall of the second round pipe in the axial direction, a clamping groove is formed in the lower end of each sliding groove, a sliding block is slidably connected to the interior of each sliding groove, a first magnetic block is fixed to the end, away from the clamping groove, of each sliding block, and a second magnetic block is fixed to the top, away from the clamping groove, of each first sliding groove; the two sliding blocks are fixed to the inner wall of the first round pipe. According to the vibration detection device, the problem of inaccurate measurement data caused by reduction of the detection precision due to light in the environment is avoided, and the use effect of the vibration detection device for the basic structure of the industrial equipment is improved.

The present invention relates to the field of large-field-of-view scenes. Provided is a nonlinear optical large-field-of-view imaging system, comprising a light source system, a laser scanning system and a laser detection system, wherein the light source system is configured to emit laser; the laser scanning system comprises a focusing lens and a galvanometer, wherein the galvanometer is located between the focusing lens and a sample to be detected, the focusing lens is configured to focus the laser on said sample, and the galvanometer vibrates according to a preset scanning angle so as to realize scanning of a laser focus on said sample; and the laser detection system comprises a compound-eye collection structure and a detector, wherein the compound-eye collection structure comprises a plurality of individual lenses which are closely arranged, optical signals generated by said sample are incident on the compound-eye collection structure, and the detector is configured to detect the optical signals collected by the compound-eye collection structure. The present invention can expand a laser scanning imaging range, can ensure that a laser beam always propagates along the optical axis of the focusing lens, and can comprehensively collect signals excited across the entire scanning field of view, thereby improving the efficiency of large-field-of-view imaging and increasing the signal intensity.

The invention belongs to the technical field of multi-detector composite detection, and more particularly relates to an infrared composite detection information processing system and method, the infrared composite detection information processing system is constructed through a DSP processor, an SOC processor, an infrared signal acquisition circuit and a laser signal acquisition circuit, the DSP processor and an FPGA circuit do not need to be additionally added, and the system is simple in structure and convenient to operate. Therefore, the accuracy of the detection result can be guaranteed, and the hardware cost and the operation power consumption of the system can be reduced; a laser signal acquisition circuit is constructed through a gain control circuit, a high-speed ADC acquisition circuit and a buffer amplification circuit, the gain control circuit and the buffer amplification circuit can be effectively utilized to filter interference noise of a target pulse signal of a laser detector, and high-speed synchronous acquisition and digital conversion of the target pulse signal can be realized in cooperation with the high-speed ADC acquisition circuit. Therefore, the SOC processor can obtain the laser detection result more accurately.