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Multi-motor time-sharing control system and imaging device

A time-sharing control and motor control technology, applied in control systems, motor speed or torque control, electrical components, etc., can solve the problems of expensive motor drives and underutilized drive performance, saving cables and Connector, device compactness, cost reduction effect

Inactive Publication Date: 2016-08-10
SIEMENS SHANGHAI MEDICAL EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because each motor is equipped with a drive, the number of drives is large, and the drive performance is often not fully utilized
Moreover, usually the price of the motor driver is relatively expensive, especially the driver with high power and high performance.

Method used

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  • Multi-motor time-sharing control system and imaging device

Examples

Experimental program
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no. 1 approach

[0035] figure 1 A system structure diagram of the multi-motor time-sharing control system 10 according to the first embodiment of the present invention is schematically shown. Such as figure 2 As shown, the multi-motor time-sharing control system involved in this embodiment mainly includes: a power supply 20, a controller 30, a motor driver 40, an electromagnetic relay 50 and a plurality of motors (only two are shown here) 60 , 60'. In addition, there are also sensors 70, 70' for respectively feeding back the speed / position of the motors 60, 60', brake devices 80, 80' for brake control of the motors 60, 60', and motor overheating protection sensors 90, 90'. In this embodiment, a plurality of motors 60, 60' are respectively connected to a plurality of moving parts such as a bed of a medical imaging device and an X-ray detector box (not shown here), and serve as a driving mechanism for the moving parts.

[0036] Here, the power supply 20 supplies electric power P to the co...

no. 2 approach

[0049] figure 2 A system structure diagram of a multi-motor time-sharing control system according to the second embodiment of the present invention is schematically shown.

[0050] In the above-mentioned first embodiment, the controller 30 sends to the coil K of the electromagnetic relay 50 a digital quantity switching signal for making the switch S perform a switching operation, and in this embodiment, as image 3 As shown, the motor driver 40 sends a digital switching signal DS for making the switching switch S perform a switching operation to the coil K of the electromagnetic relay 50, and the other structures are basically the same as those of the first embodiment.

[0051] In this embodiment, according to the working motor selected by the controller 30, the motor driver 40 selects the corresponding working motor control parameters. The digital switching signal DS for the switching action, when the electromagnetic relay 50 receives the digital switching signal, performs t...

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Abstract

The invention provides a multi-motor time-sharing control system and an imaging device. The system comprises a plurality of motors; a controller which selects one motor from the plurality of motors as a working motor; a motor driver which is connected with the controller and comprises a plurality of registers, wherein the registers are used for storing motor control parameters corresponding to the motors, and selecting the motor control parameter corresponding to the working motor as the control parameter of the working motor; and a switching mechanism which is disposed between the motor driver and the plurality of motors, and enables the motor driver to be switched to be connected with the working motor of the plurality of motors according to the working motor selected by the controller. The plurality of motors can be driven by a single-shaft motor driver in a time-sharing manner, thereby reducing the number of motor drivers.

Description

technical field [0001] The invention relates to a multi-motor time-sharing control system and an imaging device equipped with it. Background technique [0002] In the design process of medical imaging equipment such as X-ray machines, CT, MRI, etc., motors are often used to drive the controlled object to move in a predetermined way to assist medical imaging equipment to achieve certain functions, such as diagnostic imaging, patient positioning, etc. . In order to precisely control the movement of the motor, a motor driver (controller) is usually used to control the movement of the motor according to the instructions of the system. It is now common to use a single-axis motor controller to drive one motor, or a multi-axis motion driver to drive multiple motors. [0003] image 3 An explanatory diagram showing a motor drive system for driving and controlling multiple motion axes that neither need to be linked nor to move simultaneously in a current medical imaging device. Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/00A61B6/04A61B5/055
Inventor 樊振纲
Owner SIEMENS SHANGHAI MEDICAL EQUIP LTD
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