CN103120590A - Digital X-ray photography automatic tracking system - Google Patents

Abstract

The invention discloses a digital X-ray photography automatic tracking system which comprises a power source module, a first position signal sampling module, a second position signal sampling module, a microcomputer processing module, a first motor drive module and a second motor drive module, wherein the power source module is respectively connected with the first position signal sampling module, the second position signal sampling module, the microcomputer processing module, the first motor drive module and the second motor drive module. The microcomputer processing module is connected with the first position signal sampling module, the second position signal sampling module, the first motor drive module and the second motor drive module. The microcomputer processing module is further connected with a display panel and an operating panel through a serial communication. The digital X-ray photography automatic tracking system has the advantages of being accurate in position and capable of automatically obtaining positional information.

Description

The digital radiography automatic tracking system

Technical field

The present invention relates to a kind of medical equipment, particularly a kind of automatic tracking system of digital radiography suspention height.

Background technology

DR camera chain in general curative equipment mainly is comprised of following part: bulb, bulb suspension bracket, column, high tension generator, DR detector, image work acquisition station.The bulb suspension bracket is arranged on day rail, and the lower end is bulb fixedly, and bulb moves up and down vertically under the drive of motor according to patient and the position needs of photographing; Column is installed on the ground, is used for fixedly DR detector, and the DR detector moves up and down vertically under the drive of motor with 0 °～90 ° with the position needs of photographing according to patient and rotatablely moves.High tension generator mainly makes bulb produce the X ray of required dosage by the setting of kilovolt, milliampere, time parameter.the DR detector is to be radiated on the DR detector after the X ray of Isodose is passed human body, the DR detector is after human body exhaustion, the X ray that there are differences is converted into the signal of telecommunication, and be kept at image workstation, through image reconstruction, become piece image to show for diagnosis, existing camera chain is all generally to adopt encoder to come the collection position signal, but like this when carrying out location positioning, need the prompting of a little, finally could locate, use comparatively inconvenience, positioning time is longer, reduced work efficiency, when photographed in a certain position of patient body, the doctor adjusts the height of the DR detector on column according to patient's height and position, open again indicator cock, adjust the height of bulb, make the display lamp cross centre line point to the center that to photograph, then press the exposure button of high tension generator, allow bulb produce X ray, obtain the image that DR gathers, for diagnosis.Existing centering side is general all by pressing the lifting button of bulb, range estimation display lamp cross hairs position that centrally aligned is photographed, moving both vertically up and down of bulb and DR detector is uncorrelated mutually, like this due to range estimation display lamp cross hairs, so there is error in each operation, the central point of image not necessarily need be taken the central point at position; Due to the doctor first sets patient location before the DR detector after, then adjust the position height of bulb, need for a long time like this, both affect diagnosis and take quantity, the while also increases doctor's workload; Aim at the DR detector owing to being difficult to the assurance bulb, cause the image lack of homogeneity.

Summary of the invention

The objective of the invention is provides a kind of registration in order to overcome above deficiency, the digital radiography automatic tracking system of energy automatic acquisition positional information.

purpose of the present invention is achieved through the following technical solutions: a kind of digital radiography automatic tracking system, automatic tracking system comprises power module, primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module and the second motor drive module, power module respectively with primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module is connected with the second motor drive module, MICROCOMPUTER PROCESSING module and primary importance signal sampling module, second position signal sampling module, the first motor drive module is connected with the second motor drive module, micro treatment module also is connected with by serial communication and shows and guidance panel.

further improvement of the present invention is: described power module is used to described primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module and the second motor drive module provide DC voltage, the first motor drive module is used for controlling the rotation of column motor, the second motor drive module is used for controlling the rotation of bulb suspension bracket motor, primary importance signal sampling module is used for according to the rotation of column motor, the primary importance sampled signal being outputed to the MICROCOMPUTER PROCESSING module, second position signal sampling module is used for according to the rotation of bulb suspension bracket motor, second position sampled signal being outputed to the MICROCOMPUTER PROCESSING module, the MICROCOMPUTER PROCESSING module is used for making backward the second motor drive module output control signal of location comparison according to input order signal to the first motor drive module output control signal and according to primary importance sampled signal and second position sampled signal.

the present invention compared with prior art has the following advantages: automatically obtain afterwards the exact position by primary importance signal sampling module and second position signal sampling module in energising, use more for convenience, improved work efficiency, use liquid crystal display screen and keyboard button as showing and command input device, make operation more directly perceived, use serial communication as the hands section of the communication for information of operation interface and MICROCOMPUTER PROCESSING module, prevent the frequency conversion interference, be convenient to system upgrade, the use location gathers the movement position information of DR detector and bulb, make circuit stable, fault reduces, automatic centering is accurate.

Description of drawings:

Fig. 1 is module diagram of the present invention;

Fig. 2 is circuit block diagram of the present invention;

The specific embodiment:

In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the present invention, does not consist of the restriction to protection domain of the present invention.

show the specific embodiment of a kind of digital radiography automatic tracking system of the present invention as Fig. 1 and Fig. 2, described automatic tracking system comprises power module, primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module and the second motor drive module, power module respectively with primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module is connected with the second motor drive module, MICROCOMPUTER PROCESSING module and primary importance signal sampling module, second position signal sampling module, the first motor drive module is connected with the second motor drive module, micro treatment module also is connected with by serial communication and shows and guidance panel, power module is used to primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module and the second motor drive module provide DC voltage, the first motor drive module is used for controlling the rotation of column motor, the second motor drive module is used for controlling the rotation of bulb suspension bracket motor, primary importance signal sampling module is used for according to the rotation of column motor, the primary importance sampled signal being outputed to the MICROCOMPUTER PROCESSING module, second position signal sampling module is used for according to the rotation of bulb suspension bracket motor, second position sampled signal being outputed to described MICROCOMPUTER PROCESSING module, the MICROCOMPUTER PROCESSING module is used for making backward the second motor drive module output control signal of location comparison according to input order signal to the first motor drive module output control signal and according to primary importance sampled signal and second position sampled signal.

in use, liquid crystal display and keyboard operation interface are adopted in man machine interface, by power module provide 24 volts of dc sources to MICROCOMPUTER PROCESSING module and serial port communication line to operation interface, MICROCOMPUTER PROCESSING module input mouth is connected with two position signalling outfans, position signalling when receiving the motion of DR detector and bulb, MICROCOMPUTER PROCESSING module output port drives to control to drive to control with three phase electric machine with direct current generator respectively and is connected, on column and bulb suspension bracket, corresponding position sensor is housed respectively, column drives by direct current generator on three-phase variable frequency motor and suspension bracket, power module is by Switching Power Supply, electric fuse, double-pole switch forms, input 220V, output 24V unidirectional current.

after patient lines up, after pressing height tracing on the interface and taking the photograph the sheet function, operate lifting button on DR detector column, drive the column motor, column driven by motor detector moves up and down, the stud signal detection signal is sent into the MICROCOMPUTER PROCESSING module, regulate like this and take the photograph the sheet position and just can realize the height tracing of arm bulb, in the MICROCOMPUTER PROCESSING module to the position signal processing, the pulse signal of stud sampling input and the position signalling of bulb suspension bracket input compare, the direction of motion of judgement bulb, when the position signal value of column input during greater than the position signalling of bulb suspension bracket input, MICROCOMPUTER PROCESSING module output rising signals is to bulb suspension bracket motor-driven plate, bulb suspension bracket direct current generator drives bulb and moves upward, when the position signalling pulse less than the input of bulb suspension bracket of the position signalling of column input, for microcomputer is exported dropping signal to bulb suspension bracket motor-driven plate, bulb suspension bracket direct current generator drives bulb and moves downward, when the position signalling of column input equates with the position signalling of bulb suspension bracket input, the signal of stop motion is controlled in the output of MICROCOMPUTER PROCESSING module, bulb suspension bracket direct current generator stops operating, make the bulb center consistent with the center of DR detector, complete automatic tracking function.

Automatically obtain afterwards the exact position by primary importance signal sampling module and second position signal sampling module in energising like this, use more for convenience, improved work efficiency, use liquid crystal display screen and keyboard button as showing and command input device, make operation more directly perceived, use serial communication as the means of the communication for information of operation interface and MICROCOMPUTER PROCESSING module, prevent the frequency conversion interference, be convenient to system upgrade, the use location gathers the movement position information of DR detector and bulb, make circuit stable, fault reduces, and automatic centering is accurate.

Claims (2)

1. digital radiography automatic tracking system, it is characterized in that: described automatic tracking system comprises power module, primary importance signal sampling module, second position signal sampling module, the MICROCOMPUTER PROCESSING module, the first motor drive module and the second motor drive module, described power module respectively with described primary importance signal sampling module, described second position signal sampling module, described MICROCOMPUTER PROCESSING module, described the first motor drive module is connected with described the second motor drive module, described MICROCOMPUTER PROCESSING module and described primary importance signal sampling module, described second position signal sampling module, described the first motor drive module is connected with described the second motor drive module, described micro treatment module also is connected with by serial communication and shows and guidance panel.

2. digital radiography automatic tracking system according to claim 1, it is characterized in that: described power module is used to described primary importance signal sampling module, described second position signal sampling module, described MICROCOMPUTER PROCESSING module, described the first motor drive module and described the second motor drive module provide DC voltage, described the first motor drive module is used for controlling the rotation of column motor, described the second motor drive module is used for controlling the rotation of bulb suspension bracket motor, described primary importance signal sampling module is used for according to the rotation of column motor, the primary importance sampled signal being outputed to the MICROCOMPUTER PROCESSING module, described second position signal sampling module is used for according to the rotation of bulb suspension bracket motor, second position sampled signal being outputed to described MICROCOMPUTER PROCESSING module, described MICROCOMPUTER PROCESSING module is used for making backward the second motor drive module output control signal of location comparison according to input order signal to described the first motor drive module output control signal and according to described primary importance sampled signal and described second position sampled signal.

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