A control device for an intelligent medical x-ray beam device
A technology of a control device and a light beam device, which is applied in X-ray equipment, instruments for radiological diagnosis, applications, etc., can solve the problems of serial communication information packet loss, serial communication reliability cannot be guaranteed, etc., to improve the anti-interference ability and accuracy, prolonging the product life cycle, and improving the performance of equipment
Active Publication Date: 2016-05-18
沈阳中汇亿达科技开发有限公司
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Problems solved by technology
Its disadvantage is that it only considers the control of the beam beam device and does not consider the control of the beam beam device as a subsystem of the X-ray equipment, and the serial port communication is prone to information packet loss, especially when the beam beam device is integrated into the system equipment , the complexity of communication will make the reliability of serial communication impossible to guarantee
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[0044] Such as figure 1 The structural diagram of the beam control system, the specific steps to realize the control of the beam are as follows:
[0045] 1) In the manual mode, manually turn the knobs of encoder 1 and encoder 2 to set the height, width and moving position of the iris blade, and the CPLD device 3 reads the counts of encoder 1 and encoder 2. The data bus 32 is output to the microprocessor motherboard-6 to control the rotation of the height blade drive motor 18, the width blade drive motor 19, and the iris drive motor 20, and drag the height, width and iris blades to corresponding set positions;
[0046] 2) In the manual mode, press the button on the control panel 4 to output the SID set value, the halogen lamp on / off, the laser positioner, the automatic tracking image receiving surface size / manual mode switching, and the signal of filter selection Gather through CPLD device 3 and input to microprocessor mainboard-6 through data bus 32 and process and execute; ...
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The invention provides a control method for a medical x-ray restraining device on the basis of a CAN bus. The control method comprises the following steps: in a manual pattern, an encoder serves as a knob to set blade displacement of a x-ray restraining device; the count of the encoder is read and output to a microprocessor through a CPLD (Complex Programmable Logic Device); corresponding stepping motors are driven to pull blades to setting positions and state information is sent to the CAN bus simultaneously; in an automatic pattern, all control commands and state information are respectively sent to respective microprocessor main boards through CAN bus according to nodes to execute and feed back states to the CAN bus. The node software supports on-line upgrading.
Description
technical field [0001] The invention belongs to a control device of a medical X-ray beam optical device. Background technique [0002] Medical X-ray beam optics are used in clinical radiation and diagnostic equipment to restrain X-rays, so that irradiated patients can obtain images that meet the requirements of clinical diagnosis with the least radiation dose. [0003] Existing light beam control is usually carried out by means of serial communication between a single-chip microcomputer and an upper computer, such as the digital light beam described in ZL200520114674.0. Its disadvantage is that it only considers the control of the beam beam device and does not consider the control of the beam beam device as a subsystem of the X-ray equipment, and the serial port communication is prone to information packet loss, especially when the beam beam device is integrated into the system equipment , the complexity of communication will make the reliability of serial communication imp...
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IPC IPC(8): A61B6/00H05G1/30
Inventor 崔光珠崔光华
Owner 沈阳中汇亿达科技开发有限公司