195 results about "Pulse counting" patented technology

The invention discloses a carbon dioxide booster pump control system and method, particularly relates to the technical field of carbon dioxide booster pump control, and aims at transient interference pulses caused by starting and stopping of a pump body in the batch production process, millisecond-level timestamp mapping is adopted to achieve interference and steady-state pulse separation. Performing sliding median filtering on the steady-state pulse, extracting a window center peak value, and performing incremental accumulation in sequence to obtain operation accumulated flow in real time; based on the last peak time label, synchronously collecting temperature and pressure measurement values, generating a correction amount through a predefined temperature correction function and a user-defined pressure correction function, adding the correction amount according to a fixed weight, and converting the correction amount into a compensation pulse count through pulse-volume conversion to correct an accumulated error; high-precision flow metering and compensation are achieved through the synergistic effect of start-stop interference elimination, filtering peak value extraction and a correction function, and the reliability of a carbon dioxide booster pump control system under the complex working condition is improved.

The invention discloses a magnetostriction liquid level meter temperature compensation method and system based on a support vector machine. The method comprises the steps that the currently captured original pulse number is obtained through a magnetostriction liquid level meter; the current environment temperature is detected in real time through a high-precision temperature sensor in the magnetostrictive liquid level meter; taking the original pulse number and the current environment temperature as input features, sending the input features to a pre-trained support vector machine regression model (SVM), and outputting a displacement error prediction value in the current temperature environment; and correcting the original measurement result according to the error prediction value to obtain a real pulse measurement value after temperature compensation. The system comprises a time-to-digital conversion chip, a temperature chip temperature measurement module, a support vector machine reasoning module, a pulse compensation module and a distance calculation module. According to the method, nonlinear modeling can be carried out on measurement errors caused by environment temperature changes, so that the liquid level measurement result is dynamically corrected, and the overall robustness and precision of a measurement system are improved.

A TinyMaix-based switch cabinet partial discharge detection and identification algorithm comprises the following steps: designing four typical insulation defect models, and respectively simulating corona discharge, suspension discharge, surface discharge and internal discharge; 200 samples are collected for each insulation defect, a sample set of 800 samples is formed in total, and a phase-resolved partial discharge (PRPD) graph is constructed according to a phase value in combination with a power frequency synchronization signal; the method comprises the following steps: dividing a power frequency sine wave into 360 phase windows, calculating a discharge frequency and a discharge amplitude average value in each phase window, constructing pulse counting distribution # imgabs0 # and average pulse amplitude distribution # imgabs1 #, extracting a probability pwin, a mean value mu and a variance sigma, and further calculating 19 statistical characteristics such as skewness Sk; a mean square error is selected as a loss function in each iteration of model solution, model parameters are updated according to the gradient of the loss function, and model convergence is accelerated; and inputting a partial discharge signal to be detected into the trained model, and outputting a classification result of the signal by the model to realize identification and classification of the partial discharge signal.

The invention discloses a processing method and device for sensing the position of an elevator, and relates to the technical field of elevator position sensing, which comprises the following steps: running in a full stroke under no-load and rated load conditions respectively, recording pulse signal data of a magnetic induction sensor when the elevator stops on each floor and the maximum value of a pulse signal when the elevator passes through each floor, establishing a dual-mode reference database; elevator regular no-load running full-stroke detection is carried out, and elevator real-time stopping deviation is analyzed; when the elevator is powered off or breaks down, counting of the pulse counters corresponding to the current top sensor and the current bottom sensor is obtained, elevator power-off or fault stopping floors are determined, elevator power-off or fault stopping deviation is analyzed, elevator power-off or fault actual stopping deviation is obtained after elevator real-time stopping deviation is subtracted, and the position of the elevator is determined. And the elevator trapped floor and the position of the elevator trapped floor in the hoistway can be quickly positioned, the response time is shortened, blind operation is avoided, and the secondary accident risk is reduced.

The invention discloses a channel-configurable liquid particle pulse amplitude detection method and a related device, and relates to the field of digital signal processing, and the method comprises the following steps: eliminating a background noise reference value of a digital pulse signal, presetting a dynamic threshold value, filtering a noise signal of which the amplitude value is lower than the dynamic threshold value in the digital pulse signal, and obtaining a channel-configurable liquid particle pulse amplitude detection result; obtaining a baseline correction digital pulse signal; when the amplitude of the baseline correction digital pulse signal exceeds a dynamic threshold for the first time, pulse counting is started, peak detection is carried out on the baseline correction digital pulse signal, and a pulse peak value and a peak value position corresponding to a pulse event are obtained; a channel threshold parameter is preset through an upper computer, a plurality of independent channels are divided, pulse events are loaded into the corresponding independent channels to be accumulated, a channel count value and corresponding particle size distribution data are obtained, and liquid particle pulse amplitude detection is completed. The problem that the number of channels and threshold parameters cannot be dynamically adjusted when a current hardware circuit is used for liquid particle pulse amplitude detection is solved.

The invention discloses an azimuth gamma testing device and application, and belongs to the technical field of oil and gas logging equipment, the testing device comprises a PC, a rotating table, a rotating table motor, a motor driver, a rotating speed operator, a conductive slip ring and a stabilized voltage supply, the rotating table is sleeved with a rotating disc, and the rotating disc is fixedly connected with a laser; a dial is fixedly connected to the outer circumference of the rotating disc, one end of the rotating table is connected with the rotating table motor, the other end of the rotating table is connected with the conductive slip ring, the conductive slip ring is electrically connected with the azimuth gamma instrument to be measured, the azimuth gamma instrument to be measured is electrically connected with the stabilized voltage supply and the PC, and the rotating speed operator is electrically connected with the motor driver. The motor driver is connected with the rotary table motor, a photoelectric sensor is fixedly connected to the rotary table, and the photoelectric sensor is electrically connected with the azimuth gamma instrument to be detected. According to the invention, double evaluation of the azimuth measurement precision and the pulse counting time correctness of the azimuth gamma instrument can be accurately checked.

The invention provides a single-line communication method and device based on pulse counting, electronic equipment and a medium, and relates to the technical field of switches and servers. The method is executed by a main board in a system, the main board is connected with a sub-board through a single in-place signal line, and the method specifically comprises the following steps: within a first preset time period after the system is powered on, sending a first pulse sequence through the single in-place signal line, and verifying the connection state of a cable based on a received response signal; if the connection state is verified to be normal, sending a second pulse sequence through a single in-place signal line, and performing data communication with the daughter board; wherein the second pulse sequence forms communication bytes in a pulse number coding mode. According to the invention, an in-place signal line which is only used for static level detection traditionally is transformed into a dynamic multifunctional channel, so that the dual defects of low communication efficiency and high misplugging risk of a traditional scheme are synchronously overcome on the premise of not increasing any hardware cost and wiring complexity.

The invention relates to the technical field of error correction, in particular to a motor driving precision correction method and system based on force feedback data, and the method comprises the following steps: obtaining a force feedback and pulse number calculation growth rate peak value definition early warning threshold value, extracting multi-speed frequency domain amplitude, screening characteristic frequency bands, and constructing a mapping table; in the initial driving stage, abnormity is judged, a prospective correction torque is generated, frequency domain characteristics are extracted, energy is calculated, a mapping table is called for interpolation correction, and prospective and dynamic correction torque is superposed to adjust a current instruction. According to the invention, through combination of a force feedback sensor and frequency domain feature extraction, construction of a force feedback growth rate peak early warning threshold value, screening of a dynamic error feature frequency band, prospective identification of an abnormal state, error compensation according to frequency band energy and steady-state average force feedback mapping, and dual-path linkage, prospective correction and dynamic adjustment are completed. Frequency domain compensation inhibits transient control drift, precision is kept under multiple loads, the abnormal response and correction efficiency without hardware intervention is improved, and stability and continuity of system control are guaranteed.

The invention discloses a dynamic threshold adjusting system based on a silicon photomultiplier receiver and a laser radar, and belongs to the technical field of photoelectric detection. According to the system, an incident light signal is captured in real time through a silicon photomultiplier receiver, a pulse counting rate is extracted by a signal processing module to represent ambient light intensity, and an SiPM detection threshold value is adjusted based on a dynamic feedback mechanism: when background light is enhanced, the threshold value is increased to suppress noise pulses; when the background light is weakened, the threshold is reduced to preserve the weak signal. A grey-scale map generation module is introduced, noise distribution of multi-channel SiPM is converted into a two-dimensional grey-scale map through a space mapping algorithm, and accurate positioning of a noise source and collaborative optimization of a regional threshold are achieved.

The invention relates to the technical field of signal testing, and provides a Web-based PCIe signal testing method, device, system, equipment and medium, and the method comprises the steps: receiving a structured test task file uploaded by a user based on a Web front end, analyzing and extracting a to-be-tested combination parameter, and generating a test task queue; for each test task in the test task queue, calculating a target pulse count value required by PCIe preset parameter switching of the to-be-tested device, controlling the signal generator to output a corresponding target pulse signal, and triggering the to-be-tested device to be switched to a target state; for each test task, configuring oscilloscope parameters, loading a matched link loss simulation file, and controlling an oscilloscope to automatically collect and standardly store waveform data; automatically analyzing the waveform data, and extracting key index data; and filling the key index data into the test report template to generate a target test report. Through the technical scheme, the test efficiency is improved, and the accuracy and consistency of the test are ensured.

A layered pulse generator for a vertical-cavity surface-emitting laser (“VCSEL”) driver is disclosed consisting of three elements: a low-speed pulse generator, a high-speed pulse generator, and a pulse generator selector, all of which are on-chip with the VCSEL driver. By providing these elements on-chip, overall system power and complexity are reduced while allowing for significantly higher pulse train frequencies compared with known systems. The high-speed pulse generator is capable of generating pulses faster and with higher resolution than that of the low-speed pulse generator. The high-speed pulse generator uses multiple clock outputs, phase shifted, and synthesized into a single pulse waveform capable of wide-ranging frequencies, duty cycles and pulse counts.

The application provides a low-power signal amplitude detection and gain control circuit, method and application. The low-power signal amplitude detection and gain control circuit comprises: a controllable gain amplification module, which is used for receiving and amplifying an input signal; a pulse generation and counting module, which is connected with an output end of the controllable gain amplification module and is used for converting the amplified signal into a pulse and outputting a counting value; and a control module, which is connected with the pulse generation and counting module and the controllable gain amplification module respectively; wherein the control module is used for judging the input signal amplitude according to the counting value and maintaining the counting value in a predetermined counting range corresponding to a target signal amplitude by adjusting the gain of the controllable gain amplification module. In the application, the control module analyzes the pulse counting signal amplitude and compares the signal amplitude with an internal predetermined counting range, dynamically adjusts the gain of the amplification module, thereby stabilizes the circuit output in a desired amplitude interval and avoids the phenomenon of "wrong wave".

This disclosure relates to a large dynamic range radiation detector and method that simultaneously achieves particle counting and energy integration. The radiation detector includes one or more detection channels, each channel comprising: a sensor, an analog front-end circuit, an analog-to-digital converter, a digital counting module, and a charge integration module. The sensor converts incident radiation into a current signal, the radiation including rays or particles. The analog front-end circuit amplifies the current signal and converts it into a voltage signal. The analog-to-digital converter converts the voltage signal into a digital waveform, the digital waveform including discretized voltage sample values. The digital counting module determines the pulse count information of the radiation based on the digital waveform. The charge integration module determines the charge integration information of the radiation based on the digital waveform. Therefore, both particle counting and energy integration detection methods can be implemented in the digital domain, effectively improving the performance of the radiation detector in terms of noise, energy resolution, and dynamic range.

The embodiment of the invention provides an equipment fixed measurement method and device based on a laser radar, electronic equipment and a medium, and the method comprises the steps: sequentially stopping and stopping within a preset distance range in front of to-be-fixed trackside equipment; laser radar point cloud data at the current moment when the vehicle is static and a pulse count value of a speed sensor are obtained through the laser radar, pulse value changes of the speed sensor are continuously recorded, and the driving pulse distance of the vehicle is calculated; after all data acquisition is completed, acquiring laser radar point cloud data in a corresponding time period; acquiring a to-be-measured trackside equipment edge point input by a user, acquiring a Y-axis coordinate of the to-be-measured trackside equipment edge point in the laser radar point cloud data, and calculating a forward distance relative to the locomotive; and according to the starting reference of the parking point of each to-be-measured trackside device, the driving pulse distance and the forward distance relative to the locomotive, determining the coordinates of each to-be-measured trackside device along the rail direction in the rail system, and marking the coordinates.

The application discloses a kind of bar full length production method and device, the method includes: in the upstream and downstream of bar length flying shear, obtain the distance between hot metal detector;According to the distance between hot metal detector, the pulse equivalent of rolling mill is calculated;The pulse count value of rolling mill motor encoder is collected, and according to pulse count value and pulse equivalent, the actual length of finish rolling product is calculated, and the total pulse count value of rolling mill motor encoder is predicted according to the actual length of finish rolling product;According to pulse total count value and pulse equivalent, the predicted length of finish rolling product is calculated;Obtain length and fixed length, remove length and fixed length from the predicted length of finish rolling product, obtain non-fixed length;According to non-fixed length, flying shear tail is cut in the upstream of bar length flying shear.The application can reduce the personnel investment of collection area, improve production stability and production efficiency.

An exposure control unit, a timing generator unit, a metering unit, and a pulse control unit are provided. The exposure control unit generates a signal defining multiple second exposure periods contained within a first exposure period, which corresponds to a frame, each of which is shorter than the first exposure period. The timing generator unit generates a pulse signal defining the timing information within each second exposure period. The metering unit counts the pulse signal at or after the first photon capture in the second exposure period, based on the pulse signal generated by the timing generator unit. The pulse control unit performs pulse counting in a second exposure period following the first, based on a value from the metering unit.

The utility model relates to the technical field of beverage dispensers, in particular to a constant delivery pumping device based on echelette grating pulse detection. A direct-current brush motor is mounted on the peristaltic pump, a control panel mounting plate is fixedly connected to the movable end of the direct-current brush motor, a control panel is fixedly connected to the inner bottom of the control panel mounting plate, an echelette grating sensor is mounted on the control panel, and a motor shell is fixedly connected to the upper end of the peristaltic pump; the direct-current brush motor is located in the motor shell, and the upper end of the motor shell is fixedly connected with an upper sealing cover. Through pulse counting of the direct-current brush motor and the echelette grating sensor, low-cost, high-torque and anti-pollution precise quantitative pumping is achieved, and the problem that in the prior art, a high-cost motor and a complex sensor are depended on is solved.

The embodiment of the invention provides a wide dynamic range ion pulse threshold adaptive counting method and circuit, and the method comprises the steps: a first end of an electron multiplier is connected with an ion signal, a second end is connected with an input end of an amplification circuit, an output end is connected with a first end of a baseline extraction module, and a second end is connected with a first end of a baseline smoothing module; the second end is connected with the input end of the comparison circuit and the output end is connected with the counting circuit; the electron multiplier is used for converting the ion signal into a current pulse; the amplifying circuit is used for converting the current pulse into a voltage pulse; the baseline extraction module is used for extracting a voltage pulse baseline to obtain a baseline signal; the baseline smoothing module is used for smoothing the baseline signal to obtain a smoothed signal; the comparison circuit is used for dynamically determining a self-adaptive threshold value based on the smooth signal, comparing the voltage pulse with the self-adaptive threshold value and outputting a comparison signal; and the counting circuit is used for pulse counting to obtain the number of target pulses. Therefore, the counting accuracy and the counting upper limit are improved.

The present application relates to the technical field of electric parameter monitoring, and discloses a spark phenomenon identification processing system based on pulse feature fusion, comprising: a signal acquisition unit for acquiring controlled loop voltage and current signals; a feature preprocessing unit for extracting voltage and current change rates by using a hardware differential circuit; an arbitration processing unit for obtaining a change rate product by using a hardware multiplier to generate a correlation signal, and separating a high-frequency burr signal by using a high-pass filter circuit, and outputting a spark identification signal when the correlation signal crosses a negative determination threshold and the high-frequency burr signal pulse count exceeds a randomness threshold; and an output processing unit for executing loop locking according to the spark identification signal, wherein the present application utilizes the physical difference between random jump and smooth characteristics of a controlled switch in the discharge process, constructs time domain and topological dimension criteria, eliminates high-frequency power electronic commutation interference, reduces identification time delay, and guarantees the operation safety of the controlled loop.

The invention discloses a high-temperature gas cooled reactor ball passing pulse counter system and method, and relates to the technical field of monitoring and control of a high-temperature gas cooled reactor, and the high-temperature gas cooled reactor ball passing pulse counter system comprises a pulse time sequence control module, an FPGA data acquisition and processing module and a power management and monitoring module; the system generates a time sequence signal through the pulse time sequence control module to realize rapid and accurate counting and interval recording, so that the counting precision is improved; the FPGA module provides low-power-consumption and efficient signal acquisition and AD conversion, can stably communicate with an external sensor, and ensures the real-time performance and accuracy of data acquisition. And the power management module adopts an isolated power supply design, so that real-time monitoring of multiple paths of power supplies is realized, and the stability and the safety of the system are enhanced.

The invention discloses a bidirectional inductance type digital isolator and a pulse counting modulation circuit, and relates to the technical field of electronics. Comprising a left side circuit and a right side circuit which are arranged on the two sides of a transformer, the transformer is used for providing an isolation barrier, the left side circuit and the right side circuit each comprise an ENCODE module and a DECODE module, the ENCODE module encodes input signal voltage jump, and the DECODE module is used for receiving and decoding encoded signals transmitted by the transformer. The device is efficient, reliable and low in power consumption, and can meet high requirements of a modern electronic system on signal isolation and transmission.

The invention relates to the related technical field of measurement and calibration, in particular to a signal processing and calibration method and device for a long-rod type gamma dose rate instrument and a medium. The method comprises the following steps of: acquiring a real-time electric signal generated by the long-rod type gamma dose rate instrument by adopting a multi-sampling method, and converting the electric signal into a pulse signal; carrying out noise removal processing and abnormal value elimination processing on the pulse signals, and carrying out summary analysis to obtain a target pulse number; environment information and information of the long-rod type gamma dose rate instrument are collected, and a preset coefficient is corrected based on the environment information and attitude information of the long-rod type gamma dose rate instrument; calculating a ratio between the preset coefficient and the target pulse number; the ratio is gamma dosage rate. Through the arrangement, the obtained measurement result is more accurate.

The invention provides a ceramic piston rod absolute stroke measuring method based on pulse differential decoding, and the method comprises the steps: arranging binary coded grooves in a piston rod, enabling each groove to correspond to a binary number, and enabling a plurality of binary numbers to form a code; a sensor array is arranged at the position close to the piston rod and comprises a first single-row sensor and a second single-row sensor which are arranged in a front-back staggered mode. Signals are read through the sensor array, a circulation direction period is formed by voltage wave crests and wave troughs of the signals, and the moving direction of the piston rod is obtained; and in combination with codes and pulse counts obtained by the sensor array, a decoding mapping relation is established, and the absolute stroke value of the piston rod is obtained. According to the method, through binary coding, a sensor array and pulse difference, the sensor is prevented from being interfered by an external magnetic field, the accuracy of a measurement signal is ensured, and high-precision displacement measurement and direction identification can also be achieved on an oil cylinder with a piston rod with a small diameter.

This application discloses a method, apparatus, digitizing device, and storage medium for processing flicker pulses. The processing method includes: presetting multiple thresholds, and performing multi-threshold sampling on the flicker pulses based on the thresholds to obtain sampling data; determining a correspondence table between pulse energy and threshold duration related to the thresholds; and determining a target energy value of the flicker pulse based on the sampling data and the correspondence table. This application can restore stacked pulses and perform accurate energy calculation and pulse counting on the restored pulses, avoiding miscounting of some pulses due to pulse stacking.

The invention discloses a multifunctional PLC expansion device based on an FPGA and a configuration method thereof.The device comprises the FPGA, the FPGA comprises a communication module, a function configuration module, a pulse output module, a serial port module, a pulse counting module and an IO control module, the communication module is used for receiving a configuration instruction, and the function configuration module is used for receiving the configuration instruction; the function configuration module is respectively connected with the communication module, the pulse output module, the serial port module and the pulse counting module, and is used for selectively activating any one of the pulse output module, the serial port module or the pulse counting module according to the configuration instruction; and the IO control module is respectively connected with the pulse output module, the serial port module and the pulse counting module for function output.

The invention discloses a demodulation delay time detection method, which comprises the following steps: generating an RID analog radio frequency signal, and dividing the RID analog radio frequency signal into a first RID radio frequency output signal and a second RID radio frequency output signal; a pulse starting signal is generated according to the first RID radio frequency output signal, pulse counting is started according to the pulse starting signal, and a second RID radio frequency output signal is transmitted to unmanned aerial vehicle remote identification signal detection equipment to be detected; carrying out demodulation processing on the second RID radio frequency output signal through unmanned aerial vehicle remote identification signal detection equipment, generating demodulation data and a pulse stop signal, stopping pulse counting according to the pulse stop signal, and obtaining the number of pulses; and performing comparison processing on the demodulation data and the modulated analog data, and if the demodulation data and the modulated analog data are consistent, calculating demodulation delay time. The invention also discloses a detection system for realizing the demodulation delay time detection method. The demodulation delay time of the unmanned aerial vehicle remote identification signal detection equipment can be detected.

The invention discloses an error calculation method based on a pulse sequence with a time scale, and belongs to the technical field of electric power measurement testing. The standard time-frequency signal, a high-frequency standard pulse output by the standard electric energy meter and a detected pulse output by the detected electric energy meter are connected to an acquisition processor; the acquisition processor detects a jump edge of the detected pulse in real time based on a clock provided by the standard time frequency signal, and records moments corresponding to a rising edge and a falling edge of the detected pulse; counting the standard pulse in real time, and recording the current count value of the standard pulse at the corresponding moment; combining the moment information with the count value to form an original sampling sequence with a time mark; the calculation processor reads the stored original sampling sequence with the time scale, and calculates the power value, the error value, the waveform characteristic and the jitter index of the detected electric energy meter according to the edge moment of the detected pulse and the corresponding standard pulse count value; and according to the error distribution condition, the stable state of the verification system is monitored in real time, and an alarm is dynamically triggered.

The invention relates to the technical field of petroleum and natural gas drilling, and discloses a portable integrated gamma detector detection device and method. An AC-DC module and a pulse counting acquisition communication board are arranged in a shell; wherein an LCD (liquid crystal display) screen, a multichannel digital current display nixie tube group, a multichannel USB (universal serial bus) power supply and pulse acquisition interface group, a power supply switch and a USB communication interface are respectively arranged on the surface of the front panel, a power switch interface is arranged on the rear panel, and the power switch interface is converted into + 24VDC and + 5VDC power supplies through an internal AC-DC (alternating current-direct current) module. Wherein the + 24VDC is output to the four-channel USB power supply and data acquisition interface for supplying power to the integrated gamma detector, and the + 5VDC is used for supplying power to the pulse counting acquisition communication board, the LCD display screen and the four-channel digital current display nixie tube; the LCD display screen is used for displaying the gamma counting rate of the four channels in real time; four-channel current and counting rate visual display is provided, the operation complexity is reduced, the detection efficiency is improved, and the in-factory detection and maintenance efficiency of the detector is greatly improved.

The invention discloses an encoder speed measurement eccentricity error suppression method, which comprises the following steps of: constructing a sampling pulse number queue and a sampling time length queue based on an array, and taking the whole-cycle pulse number of an encoder as a constraint, respectively storing pulse counting and required time obtained by sampling from the sampling starting point to the sampling ending point into a sampling pulse number array and a sampling time length array; dynamically compensating and adjusting the sampling time sequence, and controlling the encoder angular position corresponding to the sampling starting point and the sampling ending point to be continuously kept at the encoder angular position corresponding to the first sampling starting point; carrying out moving averaging on the sampling pulse number queue and the sampling duration queue based on a first-in first-out principle, and periodically updating the sum of the sampling pulse number and the total sampling duration; the average frequency is obtained according to the sampling pulse number sum and the sampling total duration, and the conveying speed is calculated according to the annealing roller diameter. According to the invention, speed measurement periodical fluctuation caused by encoder installation eccentricity can be eliminated, and the requirement of encoder installation and annealing roller concentricity is reduced.

The invention provides a radiation monitoring method and device, and relates to the field of radioactive contamination identification. The method comprises the following steps: acquiring gamma radiation data, and converting the gamma radiation data into current pulse signal data; performing amplification processing on the current pulse signal data, and extracting pulse waveform characteristics in the current pulse signal after the amplification processing; grading the current pulse signal into pulse counting data of different amplitude grades based on the pulse waveform characteristics; inputting the pulse counting data into a reference parameter comparison model, and judging whether artificial gamma radiation source data exists in the gamma radiation data or not based on the reference parameter comparison model; and if it is confirmed that the artificial gamma radiation source data exists in the gamma radiation data, carrying out classified early warning on the pollution event in a preset mode. The radiation monitoring device solves the problems that when existing portable or fixed radiation monitoring equipment faces a high-energy low-dose artificial radioactive source with remarkable background fluctuation, the situation of recognition failure or false alarm is prone to occurring, and the overall recognition accuracy is low.