38results about How to "Reduce height error" patented technology

The invention discloses a dual-use intelligent navigation system based on a multimode synergic effect. The system is a multimode synergic three-dimensional intelligent accurate navigation positioning system on the basis of a navigation system fused with inertial navigation and step-counting zero-speed correcting algorithm and complemented by a satellite navigation system, a map matching navigation system and a wireless sensor network positioning system. A parallel real-time operation system is adopted by the invention for realizing the task scheduling, the real-time step-counting zero-speed correcting algorithm is adopted for correcting the speed and position errors of the inertial navigation system, a navigation method which consumes the lowest power and meets the precision requirement is intelligently selected from various fusion positioning techniques and is used for correcting the position error of the calibration system and the individual indoor / outdoor seamless three-dimensional accurate positioning is realized; the chip-scale circuit design is adopted by the invention, various navigation sub-systems are integrated and packaged into a patch device and the embedded development can be conveniently performed; the dual-use intelligent navigation system can supply higher safety guarantee to individual combat, police on duty, fire control, emergency and disaster releasing in the military field, can help the user to quickly plan a target route in the places, such as, shopping malls, airports, stations, parking lots, zones, scenic areas, museums, nursing home and hospitals in the civil use field, can interact with the user in real time and can perform accurate navigation and guidance, so that the user experience is promoted, the efficiency is greatly increased and the application value is higher.

The invention discloses a testing device for a rock-soil body under the stress and seepage coupling action and methods. The device comprises a base, a sample, a confining pressure system, a loading system, a seepage system and a deformation measuring system, wherein the base comprises a bottom plate, a rectangular support is arranged in the middle of the bottom plate, the sample is a square columnand is placed on the rectangular support, a vertical support is arranged on the periphery of the rectangular support, and an air bag storage cavity is arranged on one side, close to the sample, of the vertical support the confining pressure system comprises a first gas pipeline and a second gas pipeline; the loading system comprises a counterforce frame arranged above the sample, a vertical actuator is arranged at the lower end of the counterforce frame, and the tail end of the vertical actuator is connected to a loading box; the seepage system comprises a water inlet pipeline and a water outlet pipeline; and the deformation measuring system comprises a vertical electronic displacement meter and a horizontal electronic displacement meter. Different lateral pressures can be applied to thefront side, the right side, the left side and the right side of the sample, the confining pressure environment is stable, the precision is high, and the loading test of the rock-soil body under the dynamic and static stress and seepage coupling action can be realized.

The invention discloses a platform software having video monitoring and intelligent image analysis functions. The platform software is composed of an intelligent analysis and management server software and an intelligent analysis unit server software through being carried by an open-type standard X86 architecture server. The platform software provides an SDK for a third party video monitoring platform software and has a buffer zone array composed of three buffers. The function module of the platform software has eight different video monitoring and intelligent analysis functions of four classifications. The invention solves problems in analysis and extraction of feature points, specific behaviors, video quality parameters in a video monitoring view range, performs active early warning on suspicious targets, suspicious behaviors and abnormal image quality change, reduces manual strength of video monitoring, improves intelligent level of safety protection, meets requirements for large-scale video networking, mass data application and intelligent video analysis, is low in false alarm rate and can be used as a core component of a next-generation video monitoring system intelligent analysis application.

The invention discloses a method for estimating a pedestrian height position in a multi-story building based on an MEMS sensor. The method comprises the steps of: fixing an MEMS integrated sensing device on a pedestrian's lower limb; employing the MEMS integrated sensing device to collect acceleration data, angular velocity data and pedestrian height data in the process that the pedestrian walks astaircase; employing a multi-threshold detection method to determine an attitude phase and the swing phase of the pedestrian gait movement; performing correction of the accelerations of the attitudephase and the swing phase in the vertical direction, updating the speed of the attitude phase to be 0, and performing secondary integration for the corrected acceleration in the vertical direction toobtain the estimated heights of the attitude phase and the swing phase of the pedestrian; and determining whether there is deviation between the estimated height data obtained by the attitude phase and the target height data measured by a micro manometer or not, if yes, performing error linear compensation for the estimated height obtained by the swing phase and finally obtaining the updated pedestrian positioning data. The accurate estimation of the pedestrian height position is achieved based on one sensor node.

The invention relates to the related field of geological prospecting equipment, and discloses a convenient soil sampling device special for geological prospecting, wherein the device comprises a main body; a power cavity is arranged in the main body, a telescopic rod cavity with a downward opening is arranged at the lower side of the power cavity, a sampling power cavity is arranged at the right side of the power cavity, and a sampling through cavity is communicated with the upper side of the sampling power cavity; a cover plate limiting cavity with an upward opening is formed in the upper side of the sampling through cavity in a communicating mode, rotary drilling can be conducted on the ground through rotation of a ground drilling unit, and the structural integrity of a pre-collected soil layer is reserved to the maximum extent; through limiting contact of a depth limiting block with the ground, the device can automatically perform soil collection work on the ground when drilling to a set depth, the device automatically stops after sampling is completed, and manpower and material resources are saved; a soil sample can be easily taken out by pulling a pull ring upwards, so the collected soil is more convenient to take out, the comprehensive efficiency of soil sampling work is improved, and the height error of sampled soil is reduced.

This invention relates to disassemble composite particles filling machine, which comprises the following: materials chute and material transmission device to send the particles in the chute to the destiny place, wherein the chute is supported by one rack above one base socket; the material transmission device is located on the base socket under the material exit mouth of chute; the transmission device can move back and forth by one dynamic driving system on the said base socket.

The invention discloses a sweeping vehicle and a method, device and system for adjusting the height of a sweeping disc of the sweeping vehicle. The method comprises the steps of obtaining condition data used for representing the current road condition; extracting optimal height data, relative to the road surface, of the sweeping disc at present according to the condition data; obtaining a current height value used for representing the height, relative to the road surface, of the sweeping disc at present; and according to the current height value and the optimal height data, outputting a driving signal used for representing the stroke required for adjusting the sweeping disc to the optimal height. The optimal height data, relative to the road surface, of the sweeping disc at present are extracted according to the condition data, and the driving signal used for representing the stroke required for adjusting the sweeping disc to the optimal height is output according to the current height value and the optimal height data, so that automated adjustment of the sweeping disc is achieved, and efficiency of adjusting the height of the sweeping disc is improved.

The automatic aligning device for scribing machine platform datum includes a main shaft seat, a main shaft carrying cutting head, a cutting datum platform and its driving device and an automatic control system. The technological features include the aligning circuit of the automatic control system with aligning point JK connected to the conductor connected to the main shaft and the aligning point PT connected to the conductor connected to the datum platform fixed onto the datum platform, and the PLC connected to the aligning points through wires, relay, step motor driver, optoelectronic isolator and starting button. The present invention has reasonable structure, easy operation and convenient regulation, can realize the automatic aligning of the scribing machine platform datum to ensure high cutting quality.

An automatic frequency controller restores symbols carried on a received signal by a data converter, and uses an in-phase and a quadrature component obtained by phase measurement from the symbol restored by the data converter to calculate first and second phase errors. The first and second phase errors are summed together by an adder to produce a phase error of a waveform more moderate than the first phase error to decrease and increase error correction in the ranges of smaller and larger phase errors, respectively, to elongate a period of positive amplitude to expand the desired range of polarity of the phase error. A multiplier multiplies the result from the summation with a coefficient to normalize it. An integrator integrates the normalized data to produce a control signal for use in restoring the symbols.

The invention relates to an indoor automatic sticking device, which belongs to the machinery field of household building finishing, and the indoor automatic sticking device is composed of a front wheel, a trailing wheel, a rolling plate, a chassis, a motor, a motor switch, two connecting rods, a push rod, a gear rod, a clamping device and a storage battery, the rolling plate is connected to the clamping device, the rolling plate is connected to the gear rod, the motor is connected to the gear rod through a belt, two connecting rods are connected to the push rod, two connecting rods are connected to the clamping device, the motor switch is placed in the push rod, the rolling plate, the gear rod, the motor and two connecting rods are placed on the chassis, the front wheel and the trailing wheel are respectively placed at front and rear parts of the chassis, and the storage battery is connected to the chassis. The device can realize the automatic device of indoor articles.

The invention relates to a rough boring head, aiming to provide a rough boring head with the characteristics of convenient adjustment, high precision and long service life. The technical scheme of the invention is as follows: the advanced rough boring head comprises a body, a blade bearing, a locking screw, an adjusting screw and a blade, wherein the top end of the body is provided with a T-shaped groove; two blade bearings are embedded in the T-shaped groove after being arranged in a reverse symmetry manner; the locking screw crosses the column hole of a groove wall at one side of the T-shaped groove transversely and elongated slots in the two blade bearings, and then screws into the screw hole of a groove wall at the other side of the T-shaped groove to fix the two blade bearings on the body; the two blade bearings are respectively provided with a screwed hole aligning with the elongated slots, and the screwed hole is internally provided with an adjusting screw; and the distance between the upper section of the inner side groove wall of the T-shaped groove and the surfaces of the blade bearings is within -0.01-0.05mm. The transition position of the screw head of the locking screw and the screw are manufactured into a conical surface, and the position corresponding to the column hole of the groove wall of the T-shaped groove of the body is manufactured into a conical hole matched with the conical surface.

The invention discloses a height measuring sensor which comprises a pressure sensor, a liquid pipeline, a bottom end valve seat and a top end member, wherein the bottom end valve seat comprises a liquid replenishing one-way valve; the pressure sensor is arranged in the bottom end valve seat; the bottom end valve seat is connected with the top end member through the liquid pipeline; the top end member is provided with a throttling port and is constructed into a structure with a function of weakening liquid evaporation. According to the height measuring sensor disclosed by the invention, the bottom valve seat structurally comprises two one-way valves which facilitate liquid replenishment and replacement of the pressure sensor, and are flexible and convenient in use; the influence of liquid loss and evaporation on measurement is avoided, so that the bottom valve seat structure is closer to engineering application; the top end member can select three different forms which are suitable for different working occasions; by using the three forms, height error caused by liquid evaporation can be effectively reduced.

The invention discloses a solar Internet of Things isolation guardrail control system based on artificial intelligence, and belongs to the technical field of road traffic public safety. The system comprises an AI artificial intelligence control system and a central controller. The AI artificial intelligence control system comprises a sensor equipment module, a safety monitoring module, an AI videoanalysis module, a fault alarm module and a remote management platform. The central controller is responsible for receiving an instruction of the AI artificial intelligence control system and controlling the motor control module, the camera power supply module, the solar power supply management module, the alarm module, the sidewalk signal lamp and the network module. Solar energy is adopted forpower supply, the Internet of Things, AI artificial intelligence and big data are integrated, an electric power circuit does not need to be independently installed, the configuration function can be changed according to road attribute changes, and the system has the safety redundancy design after behavior errors of people; necessary scheduling space is continuously provided in an interval and planned mode, a real-time remote centralized control function is achieved, and remote management can be achieved.

The invention discloses a manufacturing method of a probe. Each probe is composed of a probe post and a probe cone. The manufacturing method comprises: a metal layer is formed on a substrate, whereinthe metal layer consists of a base layer and a conductive circuit layer formed by a plurality of patterns on the base layer; probe posts and probe cone model holes are formed on the patterns and integrated moulding is realized by electroplating. According to the manufacturing method, the restriction from the traditional mechanical processing capability is eliminated; while equal-ratio batched probe body manufacturing in a fixed area, the parallelism between the probes is ensured and the height error is reduced. Moreover, all probes are formed by integrated moulding; and after the batched production, the probe models are consistent, the probe diameter is small, the probe body has the shorter length, and the precision is improved.

The invention provides a Raman spectrum quantitative analysis method and system based on spectrum peak height direct extraction, and solves the problems of large detection result difference and low precision of the existing Raman spectrum analysis method when the spectrum shape changes. According to the method and the system, background deduction is not needed, and therefore, the precision of the Raman spectrum quantitative analysis system can be improved. The method comprises the following steps: 1, collecting a Raman light signal passing through a sample, and processing the Raman light signal into a digital signal; 2, carrying out singular point noise removal processing on the target substance signal processed in the step 1; 3, performing peak height extraction processing on the signals processed in the step 2; 4, repeating the data processing processes in the step 2 and the step 3, and performing the same processing on the reference substance to obtain a peak height signal of the reference substance; 5, carrying out normalization processing on the peak height signal; and 6, carrying out quantitative analysis on the signal processed in the step 5 to obtain a sample quantitative analysis result.

The invention discloses a water intake device and a water intake control method. The water intake device includes a shell equipped with an accommodation cavity, a water outlet adjusting mechanism anda water receiving plate that are disposed in the accommodation cavity, and a detecting assembly and a controller that are connected to the water outlet adjusting mechanism; the water outlet adjustingmechanism is provided with a water outlet, and the water receiving plate and the water outlet are oppositely disposed; a water receiving container can be placed on the water receiving plate; the detecting assembly can detect a container height and a liquid level height of the water receiving container and transmits detected information to the controller; and the controller can control the water outlet adjusting mechanism to adjust the water speed of the water outlet. When the detecting assembly detects that the water receiving container is very high, the water outlet adjusting mechanism adjusts the water outlet to discharge water at a high water speed to reduce waiting time of a user; and when the detecting assembly detects that the water receiving container is very low or a liquid level approaches full water, the water outlet adjusting mechanism adjusts the water outlet to discharge the water at a low water speed to reduce an error of the height of the water full, and the water is prevented from dropping out.

The invention discloses a method for automatically adjusting a mold during lamination of a transformer iron core, and the method uses automatic mold adjusting equipment which comprises a main body unit, a fixed mold bearing unit and a movable mold moving unit, wherein the main body unit comprises a bottom plate, a driving motor arranged on the bottom plate and a quincunx-shaped rotating disc arranged at the output end of the driving motor, and the fixed mold bearing unit comprises a bearing plate and a plurality of fixed mold rods arranged on the bearing plate; a plurality of telescopic air cylinders used for lifting the bearing plate are symmetrically and fixedly installed on the bottom plate. By continuously adjusting the directions of the movable mold rods, stacked silicon steel sheets are extruded to be attached to the inner sides of the fixed mold rods, so that layers of silicon steel sheet iron cores are stacked more tightly, the height error between the layers is greatly reduced, the whole adjusting process is very simple, the automation degree is high, and the production efficiency is improved. And the iron core stacking efficiency of workers is greatly improved.

The numerical control servo motor high-precision door frame tailor-welding equipment comprises a workbench, a first side containing plate and a first baffle are fixed to the top face of the workbench, and a second side containing plate capable of being driven by a driver to slide, a second baffle, an end containing plate perpendicular to the second baffle and a third baffle are arranged on the opposite side of the workbench. The opposite side of the workbench is provided with an end containing push plate capable of being driven by a driver to slide, side pushing mechanisms and positive pressing mechanisms are fixed to the two side containing plates and the end containing plates, strong pressing mechanisms are fixed to the ends, close to the end containing plates, of the two side containing plates respectively, and a system control screen is arranged on the workbench. The door frame is convenient and flexible to splice, accurate in size control and high in efficiency; the front face of the door frame is tightly attached to equipment, the flatness of the front face of the door frame is effectively guaranteed, the action sequence of the positive pressure mechanism is controlled through a program, operation is convenient, and efficiency is high; the door frame is tightly attached to equipment, accuracy is effectively guaranteed, the action sequence of the side pushing mechanism is controlled through a program, operation is convenient, and efficiency is high.

The invention belongs to the field of engineering measurement, and provides a precise triangulation elevation monitoring method for vertical displacement of a pier in water by accurately measuring the sight height to reduce observation errors. The method comprises the steps: firstly, arranging an observation site according to a site environment; arranging a total station, and measuring the sight height of the total station; and finally, observing monitoring points, and calculating the height difference and the elevation value. Compared with a traditional vertical displacement monitoring method, the method guarantees the measurement precision, and is wider in application range.

The invention provides an air suspension height adjusting method and system, and the method comprises the steps: adjusting air springs of a front axle and a rear axle to target heights according to a driving mode selected by a driver; when the adjusting height of the air springs exceeds a preset value, the air springs of the front axle and the rear axle are sequentially adjusted in a graded mode; and when the vehicle is not in the driving mode switching state and the vehicle judges that the height of at least one air spring does not meet the set tolerance zone requirement through self-inspection, self-adaptive independent height adjustment is conducted on the corresponding air spring. By means of the scheme, self-adaptive adjustment and graded adjustment of the air springs can be achieved, accumulated errors caused by simultaneous adjustment are eliminated, the influence of too large height difference of individual air springs on the service life and driving comfort of the springs is avoided, and the height adjustment accuracy of the air suspension can be guaranteed.

The invention discloses a high-frequency partial discharge measurement position marking tool, which comprises a base, travelling universal wheels arranged at the bottom part of the base, a rack-type support arranged at the upper part of the base, a gear arranged at the left side of the rack-type support, an axle sleeve, a rotating handle, a special-shaped frame, and a guide groove, wherein a height scale is arranged on the rack-type support; the rack-type support is fixedly connected with the base; the axis part of the gear is provided with a gear shaft; the gear and the gear shaft are fixedlyconnected; the axle sleeve is arranged on the gear shaft; the rotating handle is fixedly connected with the gear shaft; the special-shaped frame is arranged between the gear and an L-type frame; theguide groove is arranged in the L-type frame; the special-shaped frame comprises a limiting pin arranged at the right lower part, a guide groove, an open rectangular guide groove, an upper guide wheeland a lower guide wheel; a hard paper board is arranged at the upper part of the L-type frame and the special-shaped frame; and a hollowed word and a hollowed long strip are arranged on the hard paper board, a spraying mark can be positioned, and the spraying marking position is accurate. When devices such as a transformer and a current transformer perform partial discharge measurement, height errors are reduced.

The invention discloses a non-contact liquid filling method for controlling liquid level, which belongs to the technical field of filling. It includes the following steps: S1, inserting a measuring conduit into the container to be filled, and the nozzle is located at a specified height in the container to be filled; S2, during filling, obtaining the temperature caused by the filling liquid material reaching the specified height of the container to be filled Measure the pressure change in the conduit; S3, send a signal to stop filling after the pressure change reaches the set value; S4, use the measuring conduit to pump liquid after stopping filling, so that the liquid level of the liquid material in the filled container drops to the level of the nozzle Qi height. Through the method of the present invention, when filling liquid materials, when the liquid level in the container to be filled rises to the point where the measuring conduit extends into the nozzle, the pressure in the measuring conduit will change, thereby triggering a signal to control the filling. The filling action ensures that the liquid levels of the filled liquid materials in all containers are consistent, achieving the effect of accurately controlling the filling liquid level.

The invention discloses a Lego hollow brick forming machine. The forming machine is characterized by comprising a base table, a hopper, a loading conveying belt, an upper cross beam, a movable cross beam I, a movable cross beam II, a machine column, a main hydraulic cylinder, an upper punch, a lower punch, a groove, a hydraulic cylinder IV, a core tool, a metal piece and a stacking table. A novelthree-stage pressing method is adopted for greatly improving the stability of high-hollowness Lego blocks, the produced blocks are small in height error, meanwhile, under the objective condition thatat the block size proportion stage, the putting amount error is high (+ / -(2 / 4)% of the block average mass), the pressure of the final pressing stage can be adjusted, and other mass parameters, such asfirmness and frost resistance, of the block can be ensured.

The embodiment of the invention discloses a speech enhancement method and a speech enhancement device. The method comprises the following steps of: converting a speech signal with noise to obtain a frequency-domain speech signal with the noise; setting weight values of the spectral variance and spectrum amplitude of a previous frame in the frequency-domain speech signal with the noise by using a correlation degree correction parameter to obtain the spectral variance of a current frame in a pure frequency-domain speech signal, wherein the correlation degree correction parameter indicates the degree of correlation between the current frame and the previous frame; obtaining the prior signal to noise ratio of the current frame in the pure frequency-domain speech signal according to the spectral variance of the current frame in the pure frequency-domain speech signal and the spectral variance of the previous frame in the frequency-domain speech signal with the noise; and obtaining an enhanced pure frequency-domain speech signal by a least-mean-square error estimation method according to the prior signal to noise ratio of the current frame in the pure frequency-domain speech signal. Through the embodiment of the invention, errors introduced by the calculation of the prior signal to noise ratio in a speech enhancement process can be reduced.

The invention relates to a step face door pocket automatic combination machine with a veneer as a standard and a combination method thereof. The step face door pocket automatic combination machine comprises a machine base, and further comprises a first workpiece slot, a second workpiece platform, a pushing module, a pressing module and a jacking module; the first workpiece slot is arranged at theupper part of the machine base, and a main sleeve is placed in the first workpiece slot; the second workpiece platform is located on the side portion of the first workpiece slot, and an auxiliary sleeve is placed on the second workpiece platform; the pushing module is located on the side, opposite to the first workpiece slot, of the second workpiece platform and is used for pushing the auxiliary sleeve to the main sleeve, so that the auxiliary sleeve and the main sleeve are pressed; the pressing module is installed at the bottom of the first workpiece slot and comprises a movable pressing piece capable of extending to the position above the second workpiece platform and a fixed pressing piece facing the veneer of the main sleeve; and the jacking module is located at the bottom of the firstworkpiece slot, is used for lifting the main sleeve to a preset height and is used for applying pressure to the main sleeve to enable the main sleeve to keep straight after the main sleeve reaches the preset height. By means of the step face door pocket automatic combination machine and the combination method, the main sleeve and the auxiliary sleeve of the door pocket are automatically combined,the labor cost is saved, the combined molding quality is improved, and the product production efficiency is improved.

The invention discloses a prism centering rod and a method for measuring the height of the prism centering rod. The prism centering rod includes: a prism, a centering rod body and a jacking device, and the jacking device includes: a connecting frame, a bolt, a support frame and a circle The head level mark, the connecting frame is set on the side of the support frame, the bolt is set on the connecting frame, the round head level mark is set on the end of the bolt away from the support frame, the centering rod body is set on the round head leveling mark, and the prism is set on the centering rod On the body; the height measurement method of the prism centering rod includes: setting the level and the prism centering rod at intervals, adjusting the bolts so that the horizontal line of sight of the level coincides with the center of the prism; removing the body of the centering rod and setting an indium tile ruler on the round head On the level mark, read the height of the prism through the indium tile ruler. The invention reduces the height error of the prism centering pole during the triangular elevation measurement, and ensures the accuracy of the triangular elevation measurement.