37results about How to "No need for manual debugging" patented technology

The invention discloses an all-digital logarithm automatic gain control device and a method thereof. A phase shifter extracts an equidirectional branch data I and a quadrature branch data Q of instantaneous outcoming signal, then a power detector obtains the power of outcoming signal, a logarithmic converter performs the linearizing process to the outcoming signal, compares the results with a system preset parameter b to form an error signal, finally an integrator removes the high-frequency component, an index converter performs the reverse-linearizing process to the error signal, a controllable gain amplifier forms a feedback loop. When the outcoming signal power is larger than the preset value,the gain of the controllable gain amplifier is reduced, and when the outcoming signal power is smaller than the preset value,t he gain of the controllable gain amplifier is enhanced, therefore outputting the digit signal with constant power. The invention avoids the limiting amplitude distortion, considerably reduces the complexity of back-end digital signal processing, enhances the anti-interference and stability of the system and effectively reduces the consumption of hardware system resources.

The invention relates to a storage system reference evaluation program generating method and apparatus and belongs to the high-performance computing performance evaluation field. The storage system reference evaluation program generating method includes the following steps that: intermediate codes are obtained from a standardized source program; slicing starting points of the intermediate codes are identified; static program slicing is carried out based on identified slicing starting points; and simplified codes can be generated based on obtained static program slices. The method is based program slicing technology; data dependence, control dependence and communication dependence are analyzed in a compiler; all statement operation related to input and output is automatically extracted so as to form the compilable, executable, manually-readable and transplantable simplified program codes; the simplified program can faithfully reflect input and output load characteristics of an original application program, and less time and fewer resources are needed to execute the simplified program, and therefore, rapid evaluation can be facilitated. The simplified program generating method is very effective in fast evaluation of the performance of a high-performance storage system and design assistance of the storage system.

The invention discloses a traffic signal lamp fault threshold value automatic detection method. The method includes a coarse adjustment detection step and a fine adjustment detection step. According to the coarse adjustment detection step, starting from a coarse adjustment channel initial voltage value, the value of voltage applied to a current channel is increased gradually wit a step D1, and when the value of the voltage is increased each time, a new value obtained each time is corresponding to one work state, and current values corresponding to the voltage values are recorded, and a coarse adjustment voltage threshold value Un and a coarse adjustment current threshold value In are determined. According to the fine adjustment detection step, starting from a fine adjustment channel initial voltage value, the value of voltage applied to the current channel is increased gradually wit a step D2, and when the value of the voltage is increased each time, a new value obtained each time is corresponding to one work state, and a traffic signal lamp fault voltage threshold value and a traffic signal lamp fault current threshold value are determined. According to the method of the invention, different voltage is applied, and a voltage value and a current value which appear correspondingly when the current of a signal lamp changes greatly are detected, and a startup threshold value does not require manual debugging. The method has the advantages of high operability and high detection efficiency.

The invention relates to a high-speed and high-precision magnetic induction absolute value encoder for a machine tool spindle and a measurement gear of the absolute value encoder. The measurement gear comprises an inner-circle major magnetic track and an outer-circle vernier magnetic track which are arranged in a mutual staggered manner, wherein the inner-circle major magnetic track contains Z teeth, and the outer-circle vernier magnetic track contains (Z-1) teeth; the absolute value encoder comprises the measurement gear and a magnetic induction reading head; a magnetic induction element, a signal conditioning circuit and an FPGA interpolation subdivision circuit are arranged in the magnetic induction reading head; Z and (Z-1) sine and cosine orthogonal differential signals are produced by the magnetic induction element through non-contact scanning of the measurement gear, the signals processed by the signal conditioning circuit are subjected to real-time error correction and compensation by the FPGA interpolation subdivision circuit, so that relative positional values of the number of angle lines are generated respectively for Z and (Z-1) tracks, and the absolute value of the current angle is calculated. The high-speed and high-precision magnetic induction absolute value encoder is simple in structure, high in precision, easy to mount and high in anti-shock capacity, positioning precision and repeated positioning precision of the machine tool spindle are improved remarkably, and the overall measurement precision and machining efficiency of a numerical control machine tool are improved.

The present invention is a plastic woven bag automatic cutting bag dual-purpose device with hot and cold cutters, which includes a main body frame with a main motor, and the main motor is connected with a pulley and a grooved cam through an electromagnetic clutch of a cold knife and a hot knife; the top of the main body frame There are driving and driven wheels, and the driving wheel is connected with the pulley; the linear guide rail Ⅰ on the main frame is provided with a slider Ⅰ fixedly connected with the synchronous belt; the slider Ⅰ is connected to the bearing seat outside; the rubber wheel on the bearing seat The outer facade of the frame is connected with the cold-cut circular flying knife; the slider II on the linear guide rail II on both sides of the main frame is respectively connected with the two corners of the triangular guide plate; the bottom corner of the triangular guide plate is connected with the groove eccentrically; the triangular guide The top of the plate is attached with a hot knife. The cold-cut round flying knife and the hot-cut knife share the same main motor through the cold and hot knife electromagnetic clutches respectively, and the cost is low; the switching between cold and hot cutting can be controlled by the electromagnetic clutch, and can be switched at any time and controlled automatically, greatly improving the work efficiency; no manual labor is required Debugging, with high precision.

The weak capacitance change measuring circuit of the capacitance sensor comprises a single-chip microcomputer, a sine wave signal generator, a CA conversion circuit, a balancing circuit, an amplitudedemodulation circuit, a level offset circuit and a sampling feedback circuit. The sinusoidal signal generator converts a square wave signal output by the single-chip microcomputer into an excitation signal. The balance circuit converts the excitation signal into a balance signal of which the amplitude is controlled by the MCU and the phase is opposite to that of the excitation signal. The CA conversion circuit extracts an unbalanced signal which only reflects the capacitance variation of the capacitance sensor. The amplitude demodulation circuit resolves the amplitude of the unbalanced signaland then outputs the amplitude to the level offset circuit. The level offset circuit offsets the output signal, and finally a useful direct current signal is output. For a capacitance sensor with a static capacitance value within a certain range, the measuring circuit is automatically zeroed under the control of a single chip microcomputer, manual debugging is not needed, the measuring precision is high, and the conversion speed is high. The circuit is especially suitable for capacitance sensors with very weak capacitance changes.

The invention relates to a storage system reference evaluation program generating method and apparatus and belongs to the high-performance computing performance evaluation field. The storage system reference evaluation program generating method includes the following steps that: intermediate codes are obtained from a standardized source program; slicing starting points of the intermediate codes are identified; static program slicing is carried out based on identified slicing starting points; and simplified codes can be generated based on obtained static program slices. The method is based program slicing technology; data dependence, control dependence and communication dependence are analyzed in a compiler; all statement operation related to input and output is automatically extracted so as to form the compilable, executable, manually-readable and transplantable simplified program codes; the simplified program can faithfully reflect input and output load characteristics of an original application program, and less time and fewer resources are needed to execute the simplified program, and therefore, rapid evaluation can be facilitated. The simplified program generating method is very effective in fast evaluation of the performance of a high-performance storage system and design assistance of the storage system.

The invention discloses a loading mechanism of a video monitoring camera. The loading mechanism comprises a mounting plate, a supporting plate, a rotating plate, a rotating cover, a rotating disc, a camera box, a light supplementing lamp, a lens, a wall surface, an expansion threaded cylinder and a fixing groove, the lower end of the mounting plate is fixedly connected with the supporting plate, the lower end of the supporting plate is rotatably connected with the rotating plate, the rotating cover is fixedly connected to the lower end of the rotating plate, the rotating disc is rotatably connected to the interior of the rotating cover, the camera box is connected to the lower end of the rotating disc through a bolt, the light supplementing lamp is arranged in the camera box, the lens is arranged in the camera box, the wall surface is connected to the upper end of the mounting plate through a bolt, the interior of the wall surface is fixedly connected with the expansion threaded cylinder, and expansion screws are slidably connected to the interior of the mounting plate. The invention relates to a loading mechanism of the video monitoring camera. The loading mechanism has the characteristics that the angle can be automatically adjusted, and multiple areas can be monitored through rotation.

The invention discloses an all-digital logarithm automatic gain control device and a method thereof. A phase shifter extracts an equidirectional branch data I and a quadrature branch data Q of instantaneous outcoming signal, then a power detector obtains the power of outcoming signal, a logarithmic converter performs the linearizing process to the outcoming signal, compares the results with a system preset parameter b to form an error signal, finally an integrator removes the high-frequency component, an index converter performs the reverse-linearizing process to the error signal, a controllable gain amplifier forms a feedback loop. When the outcoming signal power is larger than the preset value,the gain of the controllable gain amplifier is reduced, and when the outcoming signal power issmaller than the preset value,t he gain of the controllable gain amplifier is enhanced, therefore outputting the digit signal with constant power. The invention avoids the limiting amplitude distortion, considerably reduces the complexity of back-end digital signal processing, enhances the anti-interference and stability of the system and effectively reduces the consumption of hardware system resources.

The invention provides a detecting device and detecting system for an electronic transformer. A control signal for detecting an electronic transformer is output through a control unit. A voltage errorof the electronic transformer is determined based on a reference voltage and a target voltage that are received. A current error of the electronic transformer is determined based on a reference current and a target current that are received. First test power utilization and second test power utilization are output according to the detection control signal by using a controlled voltage source. A test voltage and the reference voltage are output by a standard voltage mutual induction unit with boosting according to the first test power utilization. The test voltage is used for enabling the electronic transformer to output the target voltage. A test current and the reference current are output by a standard current mutual induction unit with the up-flow according to the test utilization. Thetest current is used for enabling the electronic transformer to output the target current. In this way, no manual debugging is required during the test of the electronic transformer, and the test efficiency of the electronic transformer is improved.

The invention discloses a flexible pulse diagnosis hand and a traditional Chinese medicine pulse diagnosis instrument. The technical proposal is as follows: it includes a plurality of flexible fingers, one end of which is connected to form a joint of the wrist; The flexible fingers are controlled to bend; airbags are fixed between adjacent flexible fingers, and the distance between the flexible fingers is adjusted by inflating and deflating the airbags; multiple fiber Bragg gratings connected in series are arranged inside the flexible fingers. The invention can meet the non-contact autonomous detection, accurately identify the position of the wrist through the pulse pillow, automatically control the detection hand to reach above the detection point, and confirm the position of the radius according to the force cloud map at the pulse pillow, thereby determining the position of the Cunguanchi pulse test point; And it can record and store the operator's pulse diagnosis technique for further study and analysis.

The invention discloses a test auxiliary device for testing the tensile strength of rock through the Brazilian test, and relates to the technical field of rock mechanical tests. The test auxiliary device for testing the tensile strength of the rock through the Brazilian test comprises a base (1), a cushion block (2), an upper cushion strip (6), a lower cushion strip (7), stand columns (4), a locating frame (3) and springs (5). The test auxiliary device for testing the tensile strength of the rock through the Brazilian test is simple in structure and ingenious in design, the locating frame with the internal trapezoid hollow is designed to act on a cylindrical test piece through the cushion block, the test piece downwards moves into the locating frame along with the own gravity, the centering position of the test piece is regulated until the bottom of the test piece makes contact with the lower cushion strip to be stable, the automatic regulation of the position of the test piece is finished, manual regulation is not needed, although the locating frame makes contact with the test piece before the test and plays the leading function for adjusting the centering position, the acting force of the locating frame can be ignored relative to the acting force after the test begins, test data after locating is accurate are accurate, an error is small, assembly and disassembly are convenient, manual regulation is not needed, and testing efficiency is improved.

The invention discloses a geomagnetic detector detection algorithm based on neural network self-learning. The determination threshold is adaptively updated according to the characteristics of a passing vehicle on the geomagnetism, and thus high accuracy of long-term operation is guaranteed. The determined threshold value Vk is empirically set, the magnetic field change value Ak+1 is recorded after one vehicle passes every time, and the initial threshold is subtracted so as to obtain the threshold change of the bicycle deltaVk+1 and then a certain weight is set for the change amount to correct the initial threshold value Vk. With the increase of the number of vehicle samples, the threshold value is infinitely close to the theoretical determination value and false detection and missed detection can be reduced so that the accuracy of vehicle inspection can be greatly enhanced, the effective and stable traffic flow data can be provided for traffic signal control and the tedious work of periodically and manually adjusting the threshold value of vehicle inspection can be saved.

The invention discloses a grinding device with a protective structure for processing alloy saw blades, relates to the technical field of grinding devices, and specifically relates to a grinding platform and a saw blade grinding mechanism. The bottom of the surface is sleeved with a waste collection tray, the bottom of the lifting plate is connected to a rotating shaft, the bottom of the gearbox is connected to a rotating motor, the saw blade grinding mechanism is arranged on both sides of the grinding platform, and the middle of the plate frame is embedded with a A hydraulic cylinder, the bottom of the bearing is connected with a spring telescopic rod, and a touch control screen is arranged at the right corner of the grinding platform. The alloy saw blade is processed with a grinding device with a protective structure. The alloy saw blades of the same size to be polished are socketed on the surface of the placement column, and the two are separated in parallel by a partition, and then enter the overlapping position through the rotating grinding cylinder. Grinding in the tooth groove, this setting is conducive to the grinding operation of multiple saw blades and multiple tooth grooves at the same time, which is conducive to improving work efficiency.

The invention discloses a high-frequency high-voltage power source capable of rapidly switching off a circuit when spark breakdown occurs. The high-frequency high-voltage power source is provided with a CPU. The CPU controls a triggering driving unit to drive a high-frequency converting unit, and the output of the high-frequency converting unit is connected with a high-frequency boosting unit. The high-frequency high-voltage power source is characterized in that a sampling circuit connected with output current of the high-frequency boosting unit is arranged, and the output of the sampling circuit is connected with a spark signal latch and processing circuit sequentially through a primary voltage follower circuit, a primary signal high-speed isolation circuit, a secondary voltage follower circuit, a high-speed voltage comparison circuit and a secondary signal high-speed isolation circuit; one output path of the spark signal latch and processing circuit is connected with the CPU, and the other output path of the spark signal latch and processing circuit is connected with the triggering driving unit; the CPU controls the triggering driving unit through the spark signal latch and processing circuit.

The invention discloses an oil removal and scum removal equipment for sewage treatment, which comprises a flow tank, the side wall of the flow tank is symmetrically provided with first limiting grooves, and first limiting grooves are slidably connected in the two first limiting grooves. A floating block and a second floating block, a driving motor is installed on the first floating block, the output end of the driving motor is horizontally fixedly connected with a rotating roller, the middle part of the rotating roller is coaxially provided with a placement slot, and the second A flow pipe is fixedly connected horizontally on the floating block. The present invention arranges the permanent magnet plate and the permanent magnet block, and utilizes the magnetic repulsion between the permanent magnet plate and the permanent magnet block to drive the movement of the permanent magnet plate, thereby completing the transfer of sewage, and can continuously remove the waste water at the liquid surface of the sewage without manual labor. The oil and scum are intercepted, salvaged and transferred. The work efficiency is high, and under the interception of the roller, it will neither cause blockage nor leak oil and scum. It saves trouble and labor, and has strong applicability. Water volume for sewage treatment.

The invention discloses a metal zipper double-edge tooth selection mould. The mould comprises an upper mould base, a lower mould base and a tooth punching device located between the upper mould base and the lower mould base; the metal zipper double-edge tooth selection mould further comprises a strip pressing device, a tooth pressing device, a tooth pushing device and tooth selection devices which are arranged to be at the left side and the right side and symmetrical; each tooth selection device comprises a tooth selector used for positioning teeth of a selected distance of zipper teeth located at one side, and each tooth selector is provided with a clamping groove matched with the corresponding teeth; the strip pressing device is used for pressing a cloth strip at one side of a zipper, the tooth pressing device is used for pressing teeth at the side and driving the teeth to slide to the clamping groove in the corresponding tooth selector at the side, the tooth pushing device is used for pushing zipper teeth at the other side so that teeth of the selected distance can slide in the clamping groove in the corresponding tooth selector at the same. The zipper teeth of the zipper punched through the mould are stable in length, the mould can be adapted to zipper teeth which belong to the same type of zippers and are different in tooth distance, and thus the effect that tooth trimming is not needed at the two edges can be achieved.

The invention provides a method for identifying the Hall phase sequence of a DC brushless motor. The identification method comprises the steps of firstly, carrying out pre-positioning on a rotor of the DC brushless motor by the means of sequentially introducing a first pre-positioning voltage vector and a second pre-positioning voltage vector, collecting Hall state signals of three Hall sensors after the pre-positioning, then determining a correct Hall combination mode according to a Hall state combination target value corresponding to the second pre-positioning voltage vector and the Hall state signals of the three Hall sensors to obtain a candidate set, then introducing a third pre-positioning voltage vector into the DC brushless motor, collecting Hall state signals of the three Hall sensors after introducing the third pre-positioning voltage vector, and further selecting a correct Hall combination mode from the candidate set to serve as an identification result according to a Hall state combination target value corresponding to the third pre-positioning voltage vector and the Hall state signals. The automatic identification of the Hall phase sequence of the DC brushless motor isrealized without manual debugging.