37results about How to "Implement servo control" patented technology

The invention discloses a full-automatic three-axis testing system for a saturated soil stress path. The full-automatic three-axis testing system comprises a pressure chamber (1), a computer (2), an axial force volume controller (3), a confining pressure volume controller (4), a back pressure volume controller (5), a data acquisition box (6) and a pressure volume control system connected with the computer (2). The full-automatic three-axis testing system for the saturated soil stress path is reasonable in structural design, convenient to operate, high in automation degree and good in stability and can be used for accurately controlling a complicated stress path of a soil body.

The invention discloses an FPGA-based modularization double-joint servo control system which comprises a joint core control unit, a CAN bus communication module, a motor drive output module, a rotating transformer angle measuring module, a torque measuring module and a DC/DC module, wherein the joint core control unit comprises an NIOSII soft core processor, an Avalon bus, a CAN bus interface circuit, a serial interface circuit I, a PID (Proportion Integration Differentiation) controller I, a rotating transformer resolution interface circuit, an A/D interface circuit, an FIFO (First In First Out) and a watch dog circuit; the CAN bus communication module comprises a CAN bus controller I and a bus driver I, the motor drive module comprises a motor power supply switch control circuit and a serial communication circuit; the rotating transformer angle measuring module comprises a rotating transformer excitation generating unit and a rotating transformer signal resolution unit; and the torque measuring module comprises a bridge measurement circuit, an amplifier and an A/D conversion circuit. The upper computer is communicated with the joint core control unit through a CAN bus, the joint core control unit sends a command to the motor driver through a serial interface of the motor drive module, and the motor driver controls the motor and feeds back position information of the motor.

The invention discloses a standard of an angle measurer. The standard comprises a rotating device and a control system, and is characterized in that: the rotating device is a double-shaft mechanical rotating device and comprises a direction and position rotary axis system and a pitch rotary axis system which are interconnected and vertical, wherein each rotary axis system is provided with an electromagnetic locking device, an angular contact bearing, a permanent-magnetic direct-current torque motor and an angle measuring element; the direction and position rotary axis system is connected with a worktable top used for placing an apparatus to be detected; and the angle measuring element of each rotary axis system forms an angle measuring system. The standard adopts the technology of combining low-speed large-torque driving technology, automatic control technology, precise measuring technology, touch screen artificial intelligent technology and programmable logic controller (PLC), so standard angle technology with high precision and high load, which can output at any angle, is realized, and a plurality of types of angle measurers, such as various wheel positioning apparatuses, are subjected to metrological verification/calibration.

The invention belongs to the technical field of power electronics and servo control, and discloses a restructuring collaborative robot joint integrated drive control system, method and application. The restructuring collaborative robot joint integrated drive control system comprises a driving panel and a control panel, wherein a driving panel is used for driving a servo motor, controlling a main inverter circuit to drive the servo motor after isolation of a control signal is realized as well as realizing phase current detection and overcurrent protection functions; and a control panel is usedfor realizing driving of the motor and information acquisition of an internal sensor in a restructuring robot joint and controlling a permanent magnet synchronous motor in the joint through adopting vector control so as to achieve three-closed-loop control of motor driving current, motor rotating speed and an output end position. According to the restructuring collaborative robot joint integrateddrive control system, method and application, comprehensive coverage of joint requirements of the collaborative robot is achieved, a continuous peak phase current output expectation reaches 19.0 A, and the maximum efficiency expectation reaches 99%; meanwhile, an efficient vector control algorithm is realized to carry out motor control, and six paths of drive board control signals are output; andfinally, accurate control of the motor position is realized.

The invention discloses a slurry injection servo control device for an indoor slurry injection simulation test and an operation method. The device comprises a pressure supply unit, a slurry storage stirring unit and a measurement and control unit, wherein the slurry storage stirring unit comprises a chamber having an accommodation space, the chamber is internally provided with a multi-stage stirring mechanism, the chamber is provided with a slurry inlet channel and a slurry outlet channel, the pressure supply unit is used for providing servo control pressure for slurry accommodated in the slurry storage stirring unit, the measurement and control unit is connected with the pressure supply unit and the slurry storage stirring unit, and slurry injection servo closed loop control is realized through controlling the applying pressure and the flow velocity or the flow of the slurry inlet channel and the slurry outlet channel. The is advantaged in that measurement and control for slurry injection pressure are carried out through a servo control loading disc, the slurry injection flow and the slurry injection amount are measured and controlled through adjusting the volume of the slurry, and random switching servo control on the slurry injection pressure, the slurry injection flow and the slurry injection amount can be carried out.

The invention discloses a servo loop control system and control method for a floating oil support inertia instrument. The control system mainly comprises an angle sensor, a front positioned amplification circuit, an A/D (analog/digital) conversion circuit, a DSP (digital signal processor) digital controller, a photocoupling isolation circuit, a power driving module, a moment motor, a hall sensor, a 422 communication interface circuit, a temperature collection circuit and an upper computer. The nonlinear control in the starting stage of the control system and the temperature gradient precise control of an instrument servo loop are respectively realized by introducing a variable parameter correction network DSP digital controller. The upper computer collects the floating oil temperature information in the instrument by the temperature collection circuit and sends the information to the DSP digital controller by the 422 communication interface circuit. The DSP digital controller compares the temperature with a given temperature threshold value and calls corresponding control parameters, so the variable parameter servo control for different temperatures of the instrument is realized. The control system is high in integration degree, high in control precision, high in automation degree, safe and reliable.

The invention discloses an autonomous mobile robot communication system based on a CAN bus. The system comprises a human-computer interaction unit and a CAN bus control unit. A DSP control system is connected between the data links of the human-computer interaction unit and the CAN bus control unit through an FPGA controller. The human-computer interaction unit includes a wireless local area network interface, and the output end of the wireless local area network interface is connected with a CAN bus adapter card. The CAN bus control unit includes a network server, and the network server is connected with a wireless data transceiver. The FPGA controller includes a GPS positioning module and a servo system, and the output end of the servo system is connected with the DSP control system. Frequency conversion is performed between a clock detection module and the DSP control system. A controller local network structure based on a CAN bus is adopted, and reliable, real-time and flexible data communication is realized between the DSP system and an upper control computer independent of each other.

The invention relates to a drive unit (12) for vertical or horizontal movement of a component (7) of a diagnostic X-ray device (1), comprising a motor and gear unit (14), a pulley (10) mounted on a drive shaft (13) of the motor and gear unit (14), and traction means (9), e.g. a rope or a drive belt, wound around the pulley (10), the component (7) to be moved being either attached to the traction means (9) or connected with the drive unit (12). In order to provide a drive unit (12) enabling collision detection, emergency stop functionality, and improved handling with regard to control of the motion of the component (7) by an operator of the X-ray device (1), the invention proposes that the motor and gear unit (14) is rotatable about the axis of the drive shaft (13) against the elastic force of a balancing spring (15), wherein provision is made for a rotation sensor (17,24), which rotation sensor (17,24) is adapted for detecting a rotation of the motor and gear unit (14) and for generating a corresponding rotation detection signal.

The invention belongs to the technical field relevant to mobile robot servo, and discloses a mobile robot RFID servo method based on positions. The method comprises the following steps of (1) randomlygenerating the preset quantity of particles in an existence position space of a target object; (2) continually collecting phase information of an RFID label on the target object by a RFID reader-writer arranged on a mobile robot, and further obtaining a practical measured value of a phase difference value; (3) processing sensor information so as to obtain the position information of a RFID antennae arranged on the mobile robot, and further obtaining a theoretical estimated value of the phase difference value; (4) performing calculation by a particle filter algorithm to obtain the position estimated value of the RFID label in the coordinate system of the current mobile robot; and (5) evaluating the stability of the position estimated value; and performing corresponding processing accordingto the evaluation result until the mobile robot and the target object reach the expected position relationship. The method has the advantages that the implementation is easy; and the applicability ishigh.

The invention discloses a full-automatic mobile phone camera module stripping machine. The full-automatic mobile phone camera module stripping machine comprises a rack mechanism, wherein a left pushing plate mechanism is arranged on the rack mechanism, a left feeding magazine mechanism is arranged on one side of the left pushing plate mechanism, a left film tearing and stripping closing mechanismis arranged on one side of the left feeding magazine mechanism, an upper left visual acquisition unit is arranged on one side of the left film tearing and stripping closing mechanism, and a carrier plate supply mechanism is arranged on one side of a storage carrier plate jacking mechanism. According to the precise matching between the mechanisms, the functions of visual accurate positioning, manipulator accurate picking, high-speed load transfer, precise placement, finished product storage and the like can be smoothly achieved, all the requirements of the above processes can be stably achieved, according to the full-automatic mobile phone camera module stripping machine, the load transfer precision is high, the precision of a feeding and receiving module is high, the servo control is accurate, the placement of products by visual positioning is stable, the yield rate is high, and thus the production efficiency and reliability of the whole equipment are extremely high.

The invention discloses a brushless servo motor. The outer wall of an rotor iron core is uniformly provided with a plurality of magnetic isolation strips parallel to the axis of the iron core, the arc-surface magnetic steels fixedly connected with the outer wall of the iron core are arranged between the adjacent magnetic isolation strips, and then fixing sleeves sleeve the magnetic isolation strips and the magnetic steels, so that the problem in the prior art that the fixing effect of a motor rotor on the magnetic steels is worse, is effectively solved, and the installation is convenient. Because of the magnetic bias design of the magnetic steel, the magnetic flux leakage can be reduced, the sine wave servo control is achieved, and the defects of low-speed noise and small torque are overcome. The brushless servo motor has very small low-speed sound, large torque and high efficiency, does not generate the environmental noise, is energy saving, and reduces the consumption.

The invention discloses a hot stamping automatic production line with a drawing and punching function. The hot stamping automatic production line comprises a cooling furnace used for cooling semi-finished products. The first pump station and the second pump station are used for providing hydraulic power; the hydraulic drawing machine, the hydraulic profiling punching flanging machine and the hydraulic secondary profiling punching machine are respectively used for drawing, profiling punching flanging and secondary profiling punching operation on the workpiece; the hydraulic drawing machine is arranged on one side of the cooling furnace, and a transfer manipulator is arranged between the hydraulic drawing machine and the cooling furnace; the hydraulic type profiling punching flanging machine is arranged on one side of the hydraulic type drawing machine and located in the feeding direction of the hydraulic type drawing machine, and a feeding mechanical arm is arranged between the hydraulic type profiling punching flanging machine and the hydraulic type drawing machine. The hot stamping automatic production line with the stretching and punching functions is reasonable in layout, and the projectile body forming machining efficiency and machining quality can be greatly improved.