84 results about "Pulse counting" patented technology

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 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 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 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 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 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.

This invention relates to a method, apparatus, equipment, and storage medium for collaborative control of laser marking on production lines. The method includes acquiring a synchronization pulse signal synchronized with the production line displacement; triggering an image acquisition device to capture a motion image of the target workpiece using the synchronization pulse signal; identifying and calculating the positional offset between the real-time position of the workpiece and a preset marking reference point in the motion image; performing synchronous translation transformation on all coordinate points in a pre-stored theoretical marking path based on the positional offset; counting pulses based on the synchronization pulse signal; and comparing the obtained real-time pulse count value with a preset marking trigger threshold. This invention, based on real-time visual positioning and dynamic correction of the marking path, effectively overcomes marking deviations caused by workpiece position fluctuations, improving the stability of the marking process. Through online judgment and closed-loop control of marking quality, automatic identification and rejection of defective workpieces are achieved, ensuring the consistency of the final product quality.

The invention discloses an ultrasonic echo discrimination electronic device and method, and the electronic device comprises a zero-crossing comparator, a first threshold comparator, a second threshold comparator and a third threshold comparator, and the input ends of the zero-crossing comparator, the first threshold comparator, the second threshold comparator and the third threshold comparator are all connected to an echo signal input end, and are used for receiving an echo signal; the output ends of the zero-crossing comparator, the first threshold comparator and the time window control unit are connected to the first part of the logic gate unit, and the first part of the logic gate unit outputs a first zero-crossing point trigger signal; the output end of the second threshold comparator is connected to the second part of the logic gate unit through the trigger unit, and the second part of the logic gate unit outputs a second zero crossing point trigger signal; the output end of the third threshold comparator outputs a pulse count value to the micro-control unit through the counter; the micro-control unit receives the first zero-crossing trigger signal, the second zero-crossing trigger signal and the pulse count value, comprehensively calculates the flight time and discriminates the echo state.

A blade deformation estimation method, system and medium under non-constant speed rotation of an impeller, structural constraint parameters and evaluation strategy parameters of an impeller rotor are obtained; the pulse count quantity and compensation time difference when each rotation period key phase zero point passes are extracted from the key phase sensor response to form a first sequence; the pulse count quantity and compensation time difference when each blade passes the sensor are extracted from the blade sensor response to form a second sequence; based on the first sequence and the second sequence, the key phase zero point passing time of other rotation periods and the measured time when each blade passes each blade sensor are calculated with the key phase time of the starting calculation rotation period as the reference zero time; the instantaneous speed sequence of the impeller is generated based on the key phase zero point passing time sequence; the impeller rotation phase when each blade reaches each blade sensor is calculated based on the structural constraint parameters; the theoretical time and instantaneous speed are solved based on the key phase zero point passing time sequence, the instantaneous speed sequence and the impeller rotation phase sequence; the blade deformation is estimated.

The utility model relates to a collector module of a single-wire pulse counting type communication temperature sensor, which comprises an MCU (Microprogrammed Control Unit) with an interruption function and a single-wire pulse counting type communication temperature sensor, a pin 1 of the single-wire pulse counting type communication temperature sensor is connected to a pin 26 of the MCU through a pull-up resistor, and a pin 2 of the single-wire pulse counting type communication temperature sensor is connected to a pin 26 of the MCU through a pull-up resistor. Meanwhile, a pin 1 of the single-wire pulse counting type communication temperature sensor is also connected to a pin 25 of the MCU; the collector module further comprises a power supply interface, a serial port communication interface and a downloading interface, and pins 4 and 5 of the power supply interface, the serial port communication interface and the downloading interface are program downloading interfaces. According to the collector module of the single-wire pulse counting type communication temperature sensor, the power-down reset operation of the single-wire pulse counting type communication temperature sensor can be omitted in the application process of the single-wire pulse counting type communication temperature sensor, and meanwhile it is guaranteed that the number of pulses sent by the sensor can be accurately and efficiently obtained at any time; therefore, the working state of the sensor when the sensor is electrified for a long time is evaluated.

The invention discloses a pulse time-driven network performance optimization system and method, and the system comprises a sparse scrambling coding module which is used for carrying out the sparse scrambling coding of input data, so as to convert the input data into a pulse sequence with the determined time distribution in the coding time, and obtain a coded pulse sequence; the decoding module is used for inputting the coded pulse sequence into the pulse neural network for reasoning, and continuously monitoring pulse activity of each category of channel of an output layer of the pulse neural network in the reasoning process; when the first pulse of any category of channel is detected, generating category prediction based on the pulse time, the pulse count or the combination thereof of the first pulse; and the coding and decoding driving training module is used for carrying out combined optimization of weights and thresholds on the network or carrying out conversion from an artificial neural network and carrying out threshold calibration on the network based on category prediction. Therefore, by adopting the embodiment of the invention, the recognition robustness of the network on the data set can be obviously improved.

The invention discloses a portable rechargeable high-voltage ignition pulse tester for dual-channel isolated acquisition, and belongs to the technical field of high-voltage pulse signal testing equipment. The tester comprises a main control module, a battery management system, a dual-channel pulse signal monitoring module, a man-machine interaction module and a power management module. Each path of the dual-channel pulse signal monitoring module is independently provided with a gas discharge tube for protection and photoelectric isolation and is independently powered by the isolation DC-DC module, so that complete electrical isolation of a high-voltage side and a low-voltage side is realized, and safety and measurement precision are ensured. The main control module adopts a microcontroller to collect and process amplitudes and times of two paths of ignition pulses in real time, information such as pulse counting, voltage values and battery electric quantity is visually displayed through a display screen, and the device is particularly suitable for high-voltage ignition pulse external field rapid detection and maintenance of engines and ignition devices in the fields of aviation, military industry and the like.

The invention discloses a thermal power generating unit low-frequency oscillation monitoring and alarming method, a control system and equipment. The method comprises: monitoring an actual load of a thermal power generating unit; judging whether the actual load exceeds a high constant value corresponding to a preset positive load deviation constant value or is lower than a low constant value corresponding to a preset negative load deviation constant value; when the actual load exceeds the high constant value or is lower than the low constant value, the pulse times exceeding the high constant value and the pulse times lower than the low constant value are recorded respectively; when the number of pulses exceeding the high constant value and the number of pulses lower than the low constant value both reach the preset pulse counting threshold value, it is judged that the thermal power generating unit has the low-frequency oscillation risk, and an alarm signal is triggered. The method can accurately adapt to the reciprocating fluctuation characteristics of the low-frequency oscillation power, can capture the risk and trigger the alarm at the initial low-frequency oscillation stage of the thermal power generating unit, strives for sufficient time for operators to take intervention measures, effectively guarantees the stable operation of the thermal power generating unit, and maintains the overall safety of a power grid.

The invention discloses a helicobacter pylori detection method and system, a medium and a product, and relates to the field of biological detection. The method comprises the following steps: blowing an expiration sample to be detected with ionic wind to eliminate static electricity on the surface of the expiration sample and radon and thorium daughters attached to the surface of the expiration sample; the method comprises the following steps: placing an expiration sample in a measurement chamber, detecting a target ray signal released by the expiration sample through a detector comprising a scintillator and a photomultiplier, converting the target ray signal into an electric pulse signal, and generating corresponding energy spectrum data based on the amplitude of the electric pulse signal; extracting and counting pulse counts in a preset characteristic energy interval from the energy spectrum data, and taking the pulse counts as effective counts of the measurement; and calculating the surface emissivity of the expiration sample based on the effective count, the measurement time and the preset detection efficiency of the detector, and comparing the surface emissivity with a preset negative and positive boundary surface emissivity to determine a detection result. By implementing the technical scheme, the helicobacter pylori can be accurately and reliably detected.

This invention relates to the field of Internet of Things (IoT) operating system technology and discloses a multi-terminal collaborative intelligent control system based on IoT, including multiple terminals, a motion execution module, and an edge control module. The edge control module reads the pulse count value of the motion execution module through memory mapping to determine the local displacement and extracts the logical timing code broadcast by adjacent terminals as an external reference. The edge control module compares the local displacement with the external reference to obtain the synchronization deviation. When the synchronization deviation exceeds a threshold, the edge control module generates a high-priority interrupt signal to modify the register instruction and corrects the weight based on the transmission timestamp difference to offset nondeterministic communication delay. This invention utilizes the collaborative determination of physical parameters and logical virtual parameters to construct a hardware-level security barrier, eliminate the interference of network jitter on motion timing, and ensure that the control beat is aligned with the execution beat.

The invention relates to the technical field of image fusion, in particular to a multi-modal image fusion method based on a roundworm spiking nervous system, which comprises the following steps of: respectively inputting registered multi-modal source images into a bionic roundworm spiking nervous system model, and calculating the pulse excitation frequency of each pixel position in a period of time; the image information is converted into a pulse counting graph; comparing the sizes of the two pulse counting diagrams pixel by pixel to generate a corresponding binary weight map; and carrying out weighted average fusion on the two source images according to the weight map to obtain a final fusion image with complementary information and enhanced features. Compared with a pulse neural network, the method is simple in structure, convenient to apply, capable of being rapidly deployed, good in interpretability and capable of flexibly adjusting related parameters according to requirements. Different from the application of pulse neural network excitation, the method achieves an expected fusion effect through weight calculation based on pulse excitation counting.

The application provides a current frequency conversion circuit, a conversion method and an inertial navigation device. The circuit comprises a current frequency conversion unit and a control unit. The current frequency conversion unit comprises an integration circuit, an ADC sampling circuit, a switch circuit and a constant current source circuit. The control unit comprises an ADC acquisition module, a constant current source control module, a pulse counting module, a temperature acquisition module, a temperature compensation processing module, a digital signal to pulse module and a pulse output module. The ADC acquisition module is connected with the ADC sampling circuit, the constant current source control module and the pulse counting module respectively. The constant current source control module is connected with the switch circuit. The temperature compensation processing module is connected with the pulse counting module, the temperature acquisition module and the digital signal to pulse module respectively. The pulse output module is connected with the digital signal to pulse module and a driving circuit respectively. The technical scheme of the application solves the technical problem that the system without the serial bus hardware condition cannot apply the software compensation and the hardware compensation precision cannot meet the requirement in the prior art.

The invention discloses a two-parameter detector and a two-parameter real-time detection method and system for BNCT, and the detector comprises a sensing element which is made based on a Li2B4O7 crystal; the signal acquisition module is configured to respectively acquire an electric pulse signal and an electric parameter signal for indicating neutron counting from the sensing element; the signal conversion module is used for converting an electric pulse signal for indicating neutron counting into effective pulse counting and converting the electric parameter signal into a resistance parameter; the model calculation module is used for carrying a two-parameter response model and carrying out data processing on the resistance parameters based on the model to obtain corrected neutron flux; the technical problems that in the BNCT treatment process, a gamma-ray energy spectrum analysis method adopted in the prior art is likely to cause interference on the measurement result of the boron concentration, and real-time and rapid monitoring of the boron concentration is difficult to achieve are solved.

This invention relates to the field of tunnel monitoring technology, and discloses an underwater tunnel monitoring system and visualization monitoring method based on fiber optic sensors. A pulse signal generating unit generates a pulse signal of a certain frequency, which is converted into a light wave of the corresponding frequency by a laser and then incident on the fiber optic sensor. The fiber optic sensor is installed inside the tunnel. A fiber optic data analyzer converts the received reflected light wave into an electrical pulse of the corresponding frequency and transmits the electrical pulse signal to a pulse signal receiving unit. The pulse signal receiving unit counts the pulses, and a data processing unit calculates the pulse frequency reflected by each fiber optic segment based on the number of pulses counted. The strain value is calculated based on the pulse frequency for monitoring. Furthermore, the three-dimensional visualization monitoring allows for timely observation of alarm points, elimination of potential hazards, significantly reduced workload during manual inspections, and improved response efficiency. An interactive interface facilitates comprehensive and multi-angle viewing of the tunnel's condition.

The invention provides an incremental encoder hysteresis testing method, device and system and electronic equipment, and the method comprises the steps: detecting a current peak or a voltage peak generated by an armature winding at a commutation moment, and taking the current peak or the voltage peak as a commutation transient signal; taking a time interval corresponding to continuous N commutation transient signals as a commutation period; wherein N is the number of commutator segments in the commutator; n commutation transient signals are generated when the direct-current brush motor rotates by one circle; carrying out pulse counting on the pulse signal output by the incremental encoder to be detected in one or more commutation periods to obtain a corresponding actual measurement count value; and judging whether the incremental encoder to be detected has dynamic response lag or not based on the actually measured count value. The hysteresis characteristic of the tested incremental encoder can be accurately evaluated under various rotating speed conditions without depending on external high-precision measurement equipment, and the method has the advantages of low implementation cost and high test precision.

This invention discloses a DMA-based MT method speed measurement device and method. The device includes an orthogonal pulse counter (Counter1), a system clock counter, an MCU register, and RAM. The orthogonal pulse counter is used to orthogonally count externally input encoder signals A and B. The system clock counter is used to count the system clock. The MCU register is used to trigger a latch event of the system clock counter at the instant the orthogonal pulse counter changes, and latch the current count value of the system clock counter, the latched value being denoted as TmrCap. After the instant the orthogonal pulse counter changes, the... The count value of the pulse counter is denoted as Qcnt; the RAM includes the BufQcnt[] area and the BufTmrCap[] area, where the BufQcnt[] area is used to store the Qcnt value and the BufTmrCap[] area is used to store the TmrCap value; the RAM is configured with two DMA units, namely DMA1 unit and DMA2 unit, where the pointer read priority of DMA1 unit and DMA2 unit is different. DMA1 unit is used to store Qcnt in the BufQcnt[] area, and DMA2 unit is used to store TmrCap in the BufTmrCap[] area.

The invention discloses a high-precision time synchronization method for a space debris detection camera, and solves the technical problem that the time synchronization error of an existing space debris detection camera is large. The method comprises the following steps: S0, establishing communication; s1, electrifying the detection camera; initializing a time synchronization module; s2, acquiring on-satellite broadcast time data, on-satellite broadcast time enable signals and exposure time signals; the on-satellite broadcast time data comprises on-satellite broadcast second time and on-satellite broadcast microsecond time; s3, a second pulse signal is obtained, and a second pulse counter starts timing; s4, the microsecond counter carries out timing and assigns a value to a microsecond value register in real time; if the second pulse signal is received or timing is full, timing is carried out again; s5, selecting a second bit updating strategy to update the second value register; s6, according to the time of the exposure time signal, writing the values of the second value register and the microsecond value register into an FIFO cache, and outputting a high-precision synchronization time code; and S7, outputting state data and counting data of the second pulse signal.