98results about How to "Prevent overshoot" patented technology

The utility model discloses a blocking mechanism and a sample placing rack blocking system, in the process of moving from a feeding end to a discharging end through a sliding space, a sample placing rack passes through a pushing position and is blocked by a blocking block to stop at a blocking position, and after the sample placing rack stops at the blocking position, the sample placing rack is blocked by the blocking block to stop at the discharging end. The driving assembly can drive the pushing block to move to the blocking position in the direction from the pushing position to the blocking position, meanwhile, the driving assembly can drive the blocking block to rotate to the opening position from the blocking position, and after pushing of the sample containing frame is completed, the pushing block is driven by the driving assembly to return to the pushing position from the blocking position; the pushing block rotates to the avoiding position at the pushing position, meanwhile, the driving assembly drives the stopping block to rotate to the stopping position from the opening position, and at the stopping position, on the basis that linkage of the pushing block and the stopping block is achieved, overshoot of the sample containing frame is prevented, the system risk is reduced, the continuous operation function is achieved, and the return efficiency of the whole stopping mechanism is also improved; the power is saved, and the integration degree is improved.

The invention relates to the technical field of permanent magnet synchronous motor control, in particular to a diagnosis-free adaptive fault-tolerant control method and system for a six-phase permanent magnet synchronous motor under an open-circuit fault, and discloses the following steps: S1, converting the voltage and current of the six-phase permanent magnet synchronous motor from a three-phase static coordinate system to a two-phase static coordinate system through Clark conversion, voltage and current in the two-phase static coordinate system are converted into a two-phase synchronous rotating coordinate system through Park conversion; s2, acquiring a current relation between q-axis current of the six-phase permanent magnet synchronous motor and the two-phase static coordinate system according to the two-phase synchronous rotating coordinate system, and further acquiring two-phase static coordinate system reference current for realizing fault tolerance under an open-circuit fault; and S3, optimizing the control signal of the reference current through a phase-locked loop of a second-order generalized integrator. According to the method, diagnosis-free adaptive fault-tolerant control under the open-circuit fault of the six-phase permanent magnet synchronous motor can be realized, and the problems of misdiagnosis and time delay are reduced.

The invention discloses a dynamic frequency adaptive automatic gain control system, which belongs to the field of dynamic frequency adjustment and comprises a radio frequency power amplifier, an attenuator, a logarithmic detector, a low-pass filter and a comparison and control signal generation module. The amplified radio frequency signal is input into the attenuator; the attenuator attenuates the signal so that the input radio frequency signal reaches a range suitable for detection of the logarithmic detector after attenuation; the logarithmic detector converts the radio-frequency signal into a direct-current voltage proportional to the signal power; voltage signals of direct-current voltage output by the logarithmic detector are smoothed through a low-pass filter, and rapidly changing components are removed; and the comparison and control signal generation module compares the smoothed voltage with a reference voltage, generates a control signal for adjusting the gain, and adjusts the gain. According to the invention, instant gain adjustment is provided under the condition of rapidly changing signals, and the energy efficiency of the system is improved.

The invention discloses a method and device for controlling vehicle driving, a vehicle and a storage medium. The method comprises the steps of obtaining the speed of a vehicle; gradient information is obtained, wherein the gradient information represents the inclination degree of the ground where the vehicle runs currently; based on the speed and gradient information of the vehicle, a control result is determined, the control result indicates whether an integral term in a specified calculation formula is cleared or not, the specified calculation formula is a calculation formula adopted when the PID control algorithm is adopted for carrying out driving control on the vehicle, and the integral term represents an accumulative error generated when the PID control algorithm is adopted for carrying out driving control on the vehicle; and controlling vehicle driving based on the control result. According to the technical scheme provided by the embodiment of the invention, when the gradient information of the current driving ground of the vehicle changes and the acceleration process needs to be ended, the accumulated error can be eliminated, the situation that the acceleration process of the vehicle cannot be ended in time is avoided, excessive overshoot of the vehicle speed is avoided, and thus the riding experience of a user is improved.

The invention relates to the technical field of microfluidics, in particular to a carbon quantum dot hydrothermal synthesis system and method based on microfluidics thermal field equilibrium, which comprises a thermal field sensing module, an equilibrium analysis module, a thermal field coupling module, an equilibrium regulation and control module and a closed loop execution module, the thermal field sensing module is used for collecting array temperature on the surface of the micro-fluidic chip and fluid pressure data in a flow channel, and reconstructing three-dimensional temperature distribution in the micro-channel through a multi-physics field coupling algorithm to obtain a real-time thermal field state matrix. According to the invention, by constructing a multi-physical field coupling algorithm of a thermocouple array-flow resistance model-conjugate heat transfer equation, the three-dimensional temperature distribution of the fluid in the micro-channel can be inverted and reconstructed by using surface temperature and pressure data, so that a control system can pass through a chip matrix, and the temperature of the fluid in the micro-channel can be controlled. The radial temperature gradient and the axial thermal distortion in the fluid are directly sensed, the hysteresis and the error of sensor measurement are eliminated, and a real physical basis is provided for accurate temperature control.

The invention relates to the field of control, in particular to a flight attitude control method and system for an unmanned aerial vehicle, and the method comprises the steps: obtaining an expected attitude angle instruction and actual attitude angle feedback of the unmanned aerial vehicle, calculating an attitude angle error, employing a tracking differentiator to calculate a transition process for the expected attitude angle instruction, and enabling a tracking rate factor to achieve the control of the flight attitude of the unmanned aerial vehicle when the instruction is subjected to step change. Based on initial attitude angle error setting, instruction smooth transition is ensured, based on a transition signal output by a tracking differentiator and an estimated value of an expansion state observer, a basic control quantity is generated through nonlinear state error feedback, and control gain is adjusted on line according to a lumped disturbance amplitude. And predicting the lumped disturbance historical sequence by using a grey prediction model, calculating a predicted value at a future moment, and carrying out algebraic summation on the basic control quantity, a compensation component of the lumped disturbance predicted value and a gyroscopic moment decoupling component to generate an attitude control moment signal so as to realize stable flight of the unmanned aerial vehicle.

The invention discloses a method, device and equipment for avoiding engine flameout and a storage medium, and the method comprises the steps that the clamping stagnation state of a mixing valve is judged according to the current target opening degree and the actual opening degree; according to the clamping stagnation state of the mixing valve, PID control calculation is conducted on the opening degree error between the current target opening degree and the actual opening degree; and when it is judged that the mixing valve is opened in the stable clamping stagnation state, an integral item of PID control over the opening degree error is reset so as to avoid engine flameout. The method aims at solving the problems that in the prior art, due to the fact that a mixing valve of a low-pressure EGR system forms duty ratio overshoot when the mixing valve is opened due to clamping stagnation, the mixing valve is fully closed, external air does not enter an air cylinder, and an engine flames out or shakes, the method can effectively recognize that the mixing valve enters the clamping stagnation opening state from the clamping stagnation state, and the working efficiency of the low-pressure EGR system is improved. PID control adjustment is carried out on the mixing valve, and the problems of engine flameout and jittering caused by overshoot of the mixing valve are solved.

The invention belongs to the technical field of temperature control, and discloses a large surface source black body parameter-free temperature control method and device and a medium, and the method comprises the steps: S1, obtaining a data set; s2, performing problem modeling; s3, constructing a large surface source blackbody parameter-free temperature control model on the basis of the deep DQN, and then training the large surface source blackbody parameter-free temperature control model by using the training data set; s4, verification and adjustment are carried out, the test data set is used to evaluate the large surface source blackbody parameter-free temperature control model, and an optimal large surface source blackbody parameter-free temperature control model is obtained; and S5, applying the optimal large surface source blackbody parameter-free temperature control model to a large surface source blackbody temperature control system to control the temperature of the large surface source blackbody. According to the invention, based on the deep DQN network, through accurate state and action design and an optimized reward function, the temperature can be rapidly and accurately adjusted to a target value within the minimum number of action steps.

The invention discloses a voltage compensation method, a voltage compensation circuit and electronic equipment. The voltage compensation method comprises the following steps: acquiring bus voltage in a power switch circuit and energy storage current in an energy storage compensation circuit; obtaining a bus amplitude limiting voltage target value by using the bus voltage target value and the bias adjustment value, and subtracting the bus voltage from the bus amplitude limiting voltage target value to obtain a bus amplitude limiting voltage error value; performing proportional integral operation and amplitude limiting processing on the bus amplitude limiting voltage error value to obtain an energy storage current target value, and subtracting the energy storage current from the energy storage current target value to obtain an energy storage current error value; performing proportional integral operation on the energy storage current error value to obtain a current regulation output value; and a compensation control signal is obtained by using the current regulation output value and is used for triggering the energy storage compensation circuit to change the charging and discharging states, so that the bus voltage is compensated and regulated to a set threshold range. Through the above mode, the voltage compensation method can effectively stabilize the bus voltage within the set threshold range, and the control logic is simple.

The utility model discloses a secondary counting and bag arranging device for carton bags, which comprises a feeding conveying belt and a discharging conveying belt, the feeding conveying belt distributes materials to the discharging conveying belt through a follow-up distribution mechanism, the follow-up distribution mechanism comprises a transition conveying assembly, a first push plate and a second push plate, and the first push plate and the second push plate are arranged on the transition conveying assembly. The transition conveying assembly can transversely move in the conveying direction of the conveying belt, the two sides of the transition conveying assembly are in butt joint with the feeding conveying belt and the discharging conveying belt correspondingly, and the first push plate and the second push plate are oppositely arranged, used for abutting against the two sides of a carton package, capable of ascending and descending and capable of longitudinally moving in the direction perpendicular to the conveying direction of the conveying belt. The conveying tail end of the feeding conveying belt and the conveying tail end of the discharging conveying belt are each in butt joint with a redundancy removing mechanism, and the conveying tail end of one side of the discharging conveying belt is further in butt joint with a bag collecting and arranging mechanism. The counting and distributing device has the advantages of being capable of counting and distributing the strip packages output by the strip packaging machine and preventing the strip packages from being stacked and overshoot in the high-speed transfer process of the strip packages.

The utility model discloses a live ballast trolley rope retreating sensor capable of being used underwater for a long time, and relates to the technical field of live ballast robots. The ballast raking device comprises a ballast raking rake body, a basic installation frame is installed on the surface of the ballast raking rake body through fixing bolts, a non-contact sensor is installed on one side wall of the basic installation frame, and a rope withdrawing sensor is fixedly installed on the other side wall of the basic installation frame. When the trigger rod is stressed to rotate to the trigger position of the non-contact sensor, the non-contact sensor collects signals and commands the raking rake body to be lifted upwards, a Hall sensor is adopted as the non-contact sensor, a certain detection distance is achieved, and water leakage caused by action of a contact piece of a conventional sensor can be avoided; after the surface of the non-contact sensor is sealed by glue, the non-contact sensor can be soaked in water, and in addition, the non-contact sensor is laterally mounted, so that the problems of signal false triggering and the like caused by an uncertain detection distance can be avoided.

A mechanical arm trajectory planning method based on a structure-oriented motion profile belongs to the related technical field of robot control, and comprises the following steps: S1, inputting an expected position point matrix P of a joint space and physical constraints of a mechanical arm; s2, initializing parameters, wherein the parameters comprise a slope coefficient and a local asymmetric coefficient of the point-to-point trajectory model, a variable boundary, a population size, an external memory size and a maximum number of iterations; s3, generating an initial track Omega based on the structure-oriented motion profile; s4, optimizing an initial track omega according to an analytical method priority strategy; and S5, outputting an optimal solution or a Pareto optimal solution set. Efficient and high-precision operation of the mechanical arm is achieved, and the production efficiency and the operation precision are improved.

The utility model belongs to ship equipment technical field discloses a kind of wave compression device and boat. Wave compression device includes hinged six-bar mechanism, spoiler piece and rotary drive part, rotary drive part drives spoiler piece rotation by hinged six-bar mechanism, to make spoiler piece have the working position of extension into water. The utility model is driven by first connecting rod continuous rotation, by the hinged transmission of fourth connecting rod and spoiler piece, the swing angle of spoiler piece is naturally limited by the rotation range of first connecting rod, without setting rigid stroke end, allowing rotary drive part continuous rotation, without reversing, avoid the "overshoot phenomenon" of traditional reciprocating motion, eliminate the vibration, wear and tear and control deviation problem caused by overshoot fundamentally.

The invention provides a high-temperature superconducting magnet temperature equalization control method for circulating cold helium, and belongs to the field of superconducting magnet temperature control, and the method comprises the steps: calculating a difference value between a target temperature and an actual measurement temperature, and obtaining a steady-state error of each group of magnets; constructing a mathematical model of the cold helium cooling system according to a singular perturbation theory; a control target is determined, and the overall performance and stability of the cold helium cooling system are improved; and constructing a singular perturbation control model based on the variable universe Smith. According to the invention, the response speed and precision of the cold helium cooling system can be improved.

The application discloses a top-opening drum washing machine inner drum positioning method and a washing machine. The method comprises the following steps: after setting a washing program, the inner drum is controlled to rotate at a preset low speed; the rotation angle of the inner drum is collected and the deviation of the rotation angle from a target angle is calculated; the motor speed is controlled by PID closed-loop regulation with feedforward compensation based on the deviation, wherein the feedforward compensation amount is calculated according to the load weight, the speed fluctuation and / or the deviation change rate; when the deviation is less than a preset threshold, segmented braking is performed until the inner drum is locked at the target angle position; if the locking fails, the inner drum is reversely rotated to a preset angle, and the segmented braking is retried with corrected braking parameters. The application combines PID regulation with feedforward compensation and segmented braking, introduces a failure retry and parameter self-adaptive correction mechanism, and realizes high-precision, impact-free and high-reliability positioning of the inner drum.

The utility model relates to a self-adaptive robot and a cleaning assembly. The self-adaptive robot comprises a robot body; the cleaning module comprises a cleaning part and a connecting piece which are connected through a rotating module, and the connecting piece is fixedly connected with the robot body; the rotating module comprises a rotating part; the first end of the rotating piece is rotationally connected with the connecting piece, and the second end of the rotating piece is fixedly connected with the cleaning part; the first limiting mechanism comprises a limiting path arranged on the connecting piece or the rotating piece and a limiting piece correspondingly arranged on the rotating piece or the connecting piece, and when the rotating piece is installed on the connecting piece, the limiting piece can stretch into the limiting path so as to limit the adjustable range of the included angle of the rotating piece from a first angle to a second angle; the second limiting mechanism comprises an adjusting part, an adjusting position is correspondingly arranged on the connecting piece, and the adjusting part can move relative to the adjusting position through the adjusting position. According to the invention, the self-adaptive angle of the cleaning component which passes through the ridge and tilts up can be flexibly and reliably adjusted.

This utility model relates to the field of garment processing technology and discloses a dart template, including a working platform. An operating mechanism is installed on the top of the working platform to facilitate the dart-pinching process. An installation mechanism is installed on the front top of the working platform to facilitate the installation and replacement of the template. The operating mechanism includes a fixed square plate installed on the top of the working platform. A sliding square groove is formed in the middle of the fixed square plate, and a fixed plate is fixedly connected to the bottom inner side of the sliding square groove. A movable plate is slidably connected to the top of the fixed plate, and a limit component is installed on the top of the movable plate. In this utility model, the operator pushes the movable plate to slide longitudinally along the fixed plate, achieving precise positioning through the cooperation of the limit blocks. When the movable plate reaches the preset position, the limit blocks engage, providing a stable foundation for subsequent processes and ensuring product quality and work efficiency.

This invention discloses a phase-shifted full-bridge plasma power supply based on all SiC devices, belonging to the field of special power supply technology. It includes: a rectifier unit with a power factor correction circuit; an inverter unit containing a phase-shifted full-bridge topology composed of SiC power devices and an energy storage inductor, achieving zero-voltage switching through phase-shift control; a transformer unit; an output unit including an output filter capacitor; and a control unit that uses an incremental PID algorithm to generate phase-shift control signals. This invention analyzes the differences in zero-voltage switching between the leading and lagging bridge arms, utilizes the low output capacitance characteristics and dynamic dead-time adjustment of SiC devices, broadens the soft-switching range under light loads, effectively reduces output current ripple, and improves dynamic response speed and overall efficiency.

The application discloses a substrate diffusion device, comprising: a furnace body comprising a first end and a second end opposite to each other, the furnace body forming a furnace body cavity; the substrate placing area is arranged in the furnace body cavity; one end of the air inlet pipe is provided with a flaring part, the flaring part partially or completely extends into the furnace body cavity from the first end and points to the substrate placing area, and the cross section of the flaring part is gradually increased in the direction close to the substrate placing area. According to the substrate diffusion device, the diffusion performance of diffusion gas can be improved, and then the sheet resistance uniformity of the to-be-machined workpiece in the substrate placement area is improved.

The utility model discloses a full-standard cigarette carton distributing device and a packing machine, which belong to the technical field of cigarette carton conveying and distributing, and comprise a conveying belt and a flexible brush pressure feeding component, the flexible brush pressing and conveying assembly is arranged above the conveying belt and used for controlling cigarette cartons to be tightly attached to the conveying face of the conveying belt. The number of the conveying belts is at least two, and the conveying belts are sequentially arranged in an adjacent mode.

The invention relates to a semiconductor device, an amplifier and a bias circuit. A semiconductor device includes a first transistor, a second transistor, and a third transistor. The first transistor is controlled by a first switching signal for turning on during a first enable period. The second transistor is controlled by a second switching signal for turning on at least during a second enable period. The first enabling time period comprises a first delay time period, a second enabling time period and a second delay time period which are arranged in sequence. The third transistor is controlled by a third switching signal for conducting at least during a third enable period. The second transistor is coupled between the first transistor and the third transistor. The second enabling time period comprises a third delay time period, a third enabling time period and a fourth delay time period which are arranged in sequence.

The application discloses a model prediction control-based temperature control system and method of a plasma incinerator, and the system comprises a model prediction control module, a chromatographic temperature detector and a plasma torch; the model prediction control module is used for constructing a prediction model and obtaining a control output of a plasma incinerator hearth temperature based on the prediction model; the chromatographic temperature detector is used for measuring a temperature value of the plasma incinerator hearth and feeding back the temperature value to the model prediction control module; the model prediction control module is further used for correcting the control output based on the temperature value to obtain a next-time prediction output of the plasma incinerator hearth temperature; and the plasma torch controls the opening degree based on the control output to complete temperature control. The application can guarantee that the hearth temperature of the plasma incinerator is in a stable state during combustion, effectively suppresses the generation of harmful flue gas, realizes energy saving and emission reduction, and has high practicability.

The invention provides an isolated power converter and a control circuit thereof, a secondary side controller receives a first sampling signal representing an output voltage of the isolated power converter to generate a first control signal, and a primary side control module receives a second sampling signal representing a primary side current to generate a second control signal. A second control signal is generated to control the state of a primary side power tube, and a primary side control mode is achieved; the following secondary side control module receives the first control signal to generate a third control signal to control the state of a primary side power tube so as to realize a secondary side control mode; the control right switching module receives a third sampling signal representing the output voltage, and switches from the primary side control mode to the secondary side control mode after the third sampling signal satisfies a predetermined condition. When the isolated power converter is started, the primary side control mode is firstly realized, and the secondary side control mode is switched when the preset condition is met, so that the output voltage overshoot during starting is prevented, and meanwhile, the preset condition is adjusted to adapt to different input and output conditions.

The embodiment of the application discloses a jacket-based tank temperature control method, comprising the following steps: obtaining a tank temperature measurement value T0_PV according to a first sampling interval; calculating a difference value AT0 of the tank temperature measurement value T0_PV and a tank temperature target value T0_SP; comparing the difference value AT0 with N tank temperature threshold ranges, determining a jacket temperature calculation rule corresponding to the tank temperature threshold range to which the difference value AT0 belongs according to a comparison result, and N is greater than or equal to 3; calculating a jacket temperature setting value T_SP according to the jacket temperature calculation rule; controlling the temperature of the jacket based on the jacket temperature setting value T_SP; and repeating the above steps until the tank temperature measurement value T0_PV falls into a target tank temperature threshold range. Different threshold ranges are provided with corresponding jacket temperature calculation rules, so that the overshoot problem caused by the time lag of the jacket temperature control system can be avoided, the temperature adjustment time is saved, and the temperature control accuracy is improved.

The invention discloses a digital control method for a split-phase voltage-regulating voltage stabilizer based on silicon controlled gear switching, and relates to the technical field of voltage-regulating voltage stabilizer control. The method comprises the following steps: executing closed-loop control in each power supply cycle in a gear switching transition period: pre-judging a circulation increment according to initial trigger angles of a new gear and an old gear, and comparing the circulation increment with a safety threshold; if the threshold is exceeded, calculating a critical overlapping starting angle, segmenting an overlapping conduction interval by taking the critical overlapping starting angle as an anchor point, calculating a residual ratio, and selecting a segmentation correction strategy to correct the initial trigger angle; calculating an effective energy transmission proportion reflecting an actual transition progress based on the corrected trigger angle, and adaptively generating a target weight of a next power cycle based on the effective energy transmission proportion; monotonicity and saturation constraints are applied to the target weight to obtain an execution weight, the execution weight is mapped into an initial trigger angle of a next power supply cycle, and a cycle-by-cycle closed loop is formed; and when the execution weight reaches a final value, executing steady state locking to complete switching. The circulating current is safe and controllable, and the transition process is smooth and free of impact.

This invention proposes a winch control method for controlling the operation of a MOSFET full-bridge topology circuit. The method includes an adaptive algorithm to automatically adjust the PWM control signal: sampling the input current of the winch's electric motor every cycle or every N cycles and calculating the current change rate. To avoid noise interference, the current value is processed to obtain the calculated current. The PWM control signal is then automatically adjusted based on this calculation, specifically as follows: [Calculation details omitted]. This control method facilitates better control of the electric winch operation. The invention also proposes a system, a smart terminal, and a medium for implementing the aforementioned control method.

The utility model discloses an alumina feed control equipment is set up in the feed port of aluminium electrolytic cell, and its characterized in that includes: the tubular material channel, and the first side plate is set up to give place to the cavity, and the throttle baffle is slidably assembled in the first side plate, and through the give place to the cavity and can reciprocatingly enter the material channel inner chamber, the throttle baffle middle part is equipped with the through -hole of axial, and its through -flow cross -section area is less than the material channel nominal through -flow cross -section area, the motor is fixed in the material channel outer wall, and the output end and the throttle baffle constitute the motion transmission chain, wherein when the motor drive throttle baffle enters the working position, its board body hides the material channel flow cross section, and the material passes through the through -hole and is limited to flow. The utility model discloses a tubular material channel, throttle baffle with through -hole, motor and its motion transmission chain are set up, utilize motor drive throttle baffle and enter the working position quickly, make its board body hide the material channel flow cross section, and the material can only pass through the through -hole and is limited to flow, realized the instant, accurate regulation of alumina feed flow.

The invention provides a control method, device and equipment of an LLC constant-current switching power supply and a power supply system. The method comprises the following steps: acquiring an output current and an output voltage; configuring a preset output voltage and a preset output current; switching between current closed-loop control and voltage closed-loop control is carried out according to the change trend of the output voltage and the output current; loop calculation is carried out through current closed-loop control, and a switch control period is obtained; in each switching control period, the magnitude of the switching frequency is dynamically adjusted according to the output current and the preset output current to realize constant current control; and the pulse widths of the primary side switching tube and the secondary side switching tube are synchronously adjusted according to the switching frequency and the resonant frequency in the constant current control. According to the invention, the current ripple of the LLC constant-current switching power supply can be effectively suppressed, the overshoot phenomenon of output voltage and current is avoided, and the conversion efficiency and safe use requirements of the power supply are ensured.

The invention provides a high-voltage ride-through control method and device of a grid-connected converter, a controller and the grid-connected converter. The method comprises the following steps: monitoring a power grid voltage of a common coupling point of a power grid and a grid-connected converter in real time, and judging whether the grid-connected converter enters a high voltage ride through state or not according to the power grid voltage; if the grid-connected converter enters the high-voltage ride-through state, reducing a reactive current regulation coefficient within a first preset duration of entering the high-voltage ride-through state; determining a reactive current given value based on the power grid voltage and the reactive current adjustment coefficient; the reactive current adjusting coefficient is in positive correlation with the absolute value of the reactive current given value; and controlling the grid-connected converter by adopting the reactive current given value. According to the method, sudden change of the reactive current given value can be restrained from the source, the reactive current overshoot phenomenon is avoided, and therefore the jitter problem that when the power grid voltage enters the high-voltage ride-through state, uprush is conducted firstly, and then falling back is conducted is effectively relieved.

The utility model provides a down-the-hole drill control device with PWM (Pulse-Width Modulation) output and feedback detection functions, which is characterized by comprising an embedded microprocessor, the power supply circuit, the key input circuit, the TFT color screen display module, the EEPROM storage module, the drilling machine start-stop control output circuit, the drilling machine analog quantity sampling circuit, the alarm protection output circuit, the hydraulic valve control input circuit, the hydraulic valve PWM drive control output circuit and the hydraulic valve PWM drive control feedback detection circuit are respectively connected with the embedded microprocessor. According to the utility model, the PWM is used for outputting modulation signals, digital signals are used for controlling the electric control hydraulic proportional valve, feedback detection on load current is added, comparison with a set target current value is carried out, modulation compensation is carried out on the output signals in real time, overshoot or insufficiency is prevented, the control signals are stable, and the control precision is improved. Therefore, flow and pressure output by the electric control hydraulic proportional valve are accurately controlled, and hydraulic driving equipment is accurately controlled.