Servo control system based on compact peripheral component interconnect (CPCI) bus
A technology for interconnecting peripheral components and a servo control system. It is applied in the directions of comprehensive factory control, comprehensive factory control, and electrical program control. It can solve the problems of large size, low transmission rate, and low integration, and achieve compact system structure and communication. high rate effect
Inactive Publication Date: 2013-03-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
In view of the connection mode and transmission rate of the RS-422 interface, the entire photoelectric theodolite system will inevitably be bulky, the integration level is not high, and the transmission rate is low
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[0025] The invention according to image 3 , Figure 4 The structure shown is implemented. Among them, the CPCI bus interface 12 adopts CPCI-J1, the width adjustment wave output interface 13, the analog input interface 14, and the digital I / O interface 15 can be selected according to the needs, the CPCI bus interface chip 16 adopts PCI9054, and the width adjustment wave buffer 17 adopts LJ245 Chip, digital I / O buffer 18 adopts LJ245, programmable digital logic chip 19 adopts FPGA chip cyclone series, and control core 20 adopts digital signal processor TMS320F2812.
[0026] Technical requirements related to the modules used above: For CPCI-J1, each voltage pin must be connected with a 0.1μF ceramic capacitor close to the connector; for some bus signals, a 10-ohm capacitor is required to be connected in series at the connector interface row termination resistors, and the resistors should be set within 15.2 mm (0.6 feet) of the signal connector pins.
[0027] For PCI9054, in t...
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The invention discloses a servo control system based on a compact peripheral component interconnect (CPCI) bus, belonging to the technical field of torque motor control, and relating to a servo control system. According to the technical scheme, the servo control system based on the compact peripheral component interconnect bus comprises a CPCI bus interface, an adjustable wide wave output interface, an analog input interface, a digital I / O (Input / Output) interface, a CPCI bus interface chip, an adjustable wide wave buffer, a digital I / O buffer, a programmable digital logic chip and a control core, wherein the programmable digital logic chip comprises a local bus arbitration and a dual-port random access memory. The control core is connected with the digital I / O interface through the digital I / O buffer, and connected with the adjustable wide wave output interface through the adjustable wide wave buffer; analog information enters the control core from the analog input interface; and the CPCI bus interface chip and the programmable digital logic chip realize the conversion between a CPCI bus and a control core bus.
Description
Technical field: [0001] The invention belongs to the technical field of torque motor control, and relates to a servo control system, in particular to a servo control system based on a compact peripheral component interconnection bus. Background technique: [0002] The photoelectric theodolite is an optical instrument used in the shooting range to test the tracking data and flight status of the outer trajectory. ) and other components. The function of the servo control system is to perform closed-loop processing based on the information fed back by the angle measurement of the encoder, the guidance information of the main control computer, and the off-target information measured by TV or infrared, and control the torque motor to drive the tracking frame to achieve real-time and stable tracking of the target. [0003] Each electronic credit system of the photoelectric theodolite is packaged in an independent chassis, and then connected through a conductive ring and a cable. T...
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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 王红宣王伟国陈健姜润强曹立华
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI