Frame control system and method for computed tomography equipment
A technology of tomography and control methods, applied in computer tomography scanners, electrical program control, comprehensive factory control, etc., can solve problems such as high cost, and achieve the effects of low cost, simple system structure, and simple cost
Active Publication Date: 2018-11-30
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology
In the existing control system, the control of the CT frame is different from the general motion control system. Its position range is between 0 and 2π, and special logic control is required for both the encoder and the controller. Therefore, the above-mentioned control system The requirements for controllers and encoders are relatively high, and relatively expensive devices need to be used
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[0030] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways than those described here, so the present invention is not limited by the specific embodiments disclosed below.
[0032] As described in the background art, the existing control of the CT gantry needs to be composed of a driver, a speed encoder, a position encoder, and a controller. The technical solution of the present invention provides a frame control system of computer tomography equipment, including a host control center 10, a driver 20, a motor 30, a position measuring instrument 40 and a CT frame 50, and the position...
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Provided is a machine rack control system of a computed tomography device. The machine rack control system comprises an upper control center, a driver, a motor, a position measuring instrument and a CT machine rack. The position measuring instrument is installed on the CT machine rack. The machine rack control system is characterized by further comprising a CANopen encoder and a controller local area network bus. The upper control center, the CANopen encoder and the driver are different nodes respectively on the controller local area network bus. The CANopen encoder is connected with the position measuring instrument. The driver is connected with the motor. The machine rack control system of the computed tomography device is simple in structure, low in cost and high in coupling degree. Based on the system, the invention also provides a machine rack control method of the computed tomography device.
Description
technical field [0001] The invention relates to the control field of computer tomography equipment, in particular to a rack control system and method of computer tomography equipment. Background technique [0002] Computed tomography equipment (abbreviated as CT) needs to control the speed (ring) and position (ring) of the gantry when performing clinical scanning. At present, the closed-loop control system of the equipment frame of the computerized tomography equipment is mainly composed of a controller, a driver, a speed encoder, a position encoder, etc., wherein the position information of the frame (generally engraved with a code on the CT frame) Disk or magnetic grid) is directly fed back to the encoder, and the driver controls the position and speed of the CT gantry according to the position signal on the encoder. In the existing control system, the control of the CT frame is different from the general motion control system. Its position range is between 0 and 2π, and ...
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IPC IPC(8): G05B19/418A61B6/03
Inventor 谭珍珠
Owner SHANGHAI UNITED IMAGING HEALTHCARE