CN205082040U - Nimble medical X -ray production apparatus high voltage generator of interface - Google Patents
Nimble medical X -ray production apparatus high voltage generator of interface Download PDFInfo
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- CN205082040U CN205082040U CN201520808018.4U CN201520808018U CN205082040U CN 205082040 U CN205082040 U CN 205082040U CN 201520808018 U CN201520808018 U CN 201520808018U CN 205082040 U CN205082040 U CN 205082040U
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- 239000002828 fuel tank Substances 0.000 claims description 7
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Abstract
The utility model relates to a nimble medical X -ray production apparatus high voltage generator of interface, control circuit, inverter circuit, high -pressure tank including the order connection to reach filament drive circuit, positive pole drive circuit, external interface circuit, the communication interface circuit be connected with control circuit, filament drive circuit and high -pressure tank are connected, the external interface circuit is used for connecting external equipment. The utility model discloses a external interface circuit adopts the programmable logic control interface, to different system device, can make things convenient for and connect in a flexible way, and all interface signals have adopted the electric isolation design, the communication interface circuit is supported serial communication or CAN bus communication can carry out work as an intermediate node or terminal node in the CAN bus control mode of main many follows.
Description
Technical field
The present invention relates to technical field of medical equipment, relate to a kind of Gigantos system for medical diagnostic equipment, particularly a kind of medical X ray machine high pressure generator of flexible interface.
Background technology
Gigantos is the vitals in DR (digital photography) system or RF (digital gastrointestinal machine) system, for X-ray tube ball component provides high direct voltage, make it produce x-ray, and obtain image by video receiver, for medical diagnosis; High pressure generator provides heater current for pipe ball, drives rotarting anode simultaneously, and provides power supply, electrical connection and sequential interface for intrasystem various equipment.
Modern high voltage generators is from solely driving X-ray tube ball, develop into and can meet rich and varied x-ray system requirements, if system sequence control, digitized image, auto-exposure control, brightness are from motion tracking etc., high pressure generator has participated in each link that Image chain controls.
For meeting the requirement of the ease of use of operator, real-time and the convenience of man-machine communication, equipment room communication become more important.Serial communication uses communication modes more widely at present, and meanwhile, Can bus progresses into medical apparatus system, for Medical Devices communication brings more convenience and higher reliability.
Popularize policy along with basic medical, market increases advanced technology, system interface high pressure generator demand that is flexible, dependable performance.Existing high pressure generator interface circuit poor compatibility, in order to integrated with external equipment, often need to change hardware circuit, uses very inconvenient; Existing high pressure generator generally all only supports a kind of communication modes, can not meet the diversified communication needs of client.
Utility model content
For the deficiencies in the prior art, it is various and can connect the high pressure generator of plurality of devices, for x-ray medical diagnosis system that the purpose of this utility model is to provide a kind of dependable performance, communication modes.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of medical X ray machine high pressure generator of interface flexible, comprise the control circuit, inverter circuit, the fuel tank that are linked in sequence, and the filament driving circuit, anode driving circuit, external interface circuit, the communication interface circuit that are connected with control circuit; Described control circuit is connected with fuel tank; Described filament driving circuit is connected with fuel tank; Described external interface circuit is for connecting external equipment.
Described external interface circuit comprises CPLD chip and connected driving isolation circuit.
Described driving isolation circuit is multiple.
Described driving isolation circuit comprises driving chip and two light-coupled isolation chips; The output of CPLD chip is connected by the input side diode output of driving chip with the first light-coupled isolation chip, and the input side diode input of the first light-coupled isolation chip, the outlet side diode input of the second light-coupled isolation chip are connected with power supply respectively by resistance; The outlet side diode output of the second light-coupled isolation chip is connected with the input of CPLD chip; The diode input of the first light-coupled isolation chip outlet side, output are respectively as output head anode, the negative pole of output end of external interface circuit, and the diode input of the second light-coupled isolation chip input side, output are respectively as input anode, the negative pole of output end of external interface circuit.
The output head anode of described external interface circuit is for connecting the low level trigger input of external equipment, and negative pole of output end is for connecting the output and ground of external equipment; The input anode of external interface circuit is used for being connected with external equipment power supply by resistance, and input cathode is connected with the low level output end of external equipment.
The output head anode of described external interface circuit is used for being connected with external equipment power supply by resistance, and negative pole of output end is for connecting the high level trigger input of external equipment; The input anode of external interface circuit is used for being connected with external equipment power supply, and input cathode is connected with the low level output end of external equipment.
Described communication interface circuit comprises CAN communication circuit and serial communication circuit; Described CAN communication circuit and serial communication circuit are all connected with the CPU of control circuit.
Tandem tap and resistance between the CAN chip high level pin of described CAN communication circuit and low level pin.
Described external equipment comprises image amplifier, static flat panel detector, dynamically flat panel detector, dynamically grid, photodiode, ionization chamber, system sequence control system, rim brake backpedalling brake switch.
The utility model has following beneficial effect and advantage:
1. external interface circuit of the present utility model adopts Programmable logical controller interface, for different system equipment, can connect easily and flexibly, and meet the clock signal requirement of different system equipment.
2. total interface signal all have employed electrical isolation design, and combines the interface circuit feature of most of system equipment, and interface circuit has carried out Design of Compatibility, therefore can be electrically connected with most systems equipment.
3. serial communication is simple, reliable, and be the most frequently used communication modes of current medical system, controller of the present utility model carries serial communication controller, therefore realizes serial communication very convenient.
4. because communication apparatus in current medical system is more, control for realizing efficient real-time, a lot of Medical Devices all have employed Can bus, communication interface circuit of the present utility model supports serial communication or CAN communication, can carry out work in the CAN control model of one master and multiple slaves as an intermediate node or terminal node.
Accompanying drawing explanation
Fig. 1 is circuit structure block diagram of the present utility model;
Fig. 2 is the utility model external interface circuit diagram;
Fig. 3 is that the utility model is connected with the first flat panel detector;
Fig. 4 is that the utility model is connected with the second flat panel detector;
Fig. 5 is the utility model interface signal sequential configuration flow figure;
Fig. 6 is the utility model communication interface circuit figure.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
The major function of medical X-ray high pressure generator drives X ray bulb to make it produce X ray: providing high-voltage DC power supply to put between the anode of X-ray tube and negative electrode, for generation of electric field, is Accelerating electron; Filament supply is added on bulb negative electrode, for providing electronics; Rotarting anode power supply is added on bulb anode motor, drives anode to rotate.
Medical X-ray high pressure generator is also for the equipment of x-ray system provides power supply and various functional interface, the system equipment that high pressure generator may connect comprises: image amplifier, static flat panel detector, dynamically flat panel detector, dynamically grid, photodiode, ionization chamber, system sequence control system, rim brake backpedalling brake switch, and this most equipment wherein all needs to provide power supply and interface sequence by high pressure generator.In addition, high pressure generator also needs for inspection chamber provides gate light and door lock interface.The communication of the intelligent terminal such as high pressure generator and PC, provides the interface of man-machine interaction.
By expanding the interface suitability of high pressure generator, external interface circuit of the present utility model can be connected with various external equipments presented hereinbefore.
Interface signal of the present utility model is all connected with programmable logic device (CPLD), and all inputs and output signal are all connected with the I/O pin of CPLD, and effective logic state of total interface signal, initial condition, rate of change are all settings able to programme.The sequential of interface signal can be arranged by interactive software, the utility model provides a configuration interface for operator, operator can according to the requirement of system equipment, the sequential of configuration interface signal and initialize signal state very easily on interactive software, therefore the sequential logic of interface signal and level can customize according to the requirement of external equipment.
External interface circuit possesses electrical isolation function, output, input all adopt light-coupled isolation, in order to ensure the suitability of interface, consider the interface circuit of various peripheral hardware when interface circuit design, ensure the compatibility on hardware circuit, therefore directly can be connected with the interface circuit of most of peripheral hardware.
X-ray machine high pressure generator needs and the intelligent terminal communication such as computer, also may with equipment in system, as electrical movement system carries out communication.The utility model can select serial communication or Can bus communication, by the mode of configuration file, be configured the communication modes of high pressure generator, user can select serial communication or Can bus communication as required, and in configuration file configurable PORT COM and communication speed.
Main circuit part of the present utility model as shown in Figure 1, comprises inverter circuit, high pressure Tank (pressure-oil tank), control circuit, filament driving circuit, anode driving circuit, external interface circuit, communication interface circuit.Control circuit comprises CPU (ARM chip) and connected AD and D/A converter, and AD is connected with external circuit by signal conditioning circuit with D/A converter; Extranets power supply connects rectification circuit, inverter circuit and high pressure Tank (fuel tank) successively by A.C. contactor, and A.C. contactor control end is connected with CPU, and control circuit is connected with inverter circuit, external interface circuit, communication interface circuit; Control circuit is connected with high pressure Tank by filament driving circuit simultaneously, and high pressure Tank output is for connecting high voltage input terminal and the filament of X ray bulb; Control circuit connects the anode motor of bulb by anode driver; External interface circuit connects the external equipments such as flat panel detector, and communication interface circuit connects miscellaneous equipment in the intelligent terminals such as PC or system.
All external interface signals of the present utility model are all connected on the I/O pin of programmable logic device, select AltraCPLD chip EPM1270T144C5N, and this chip has the advantages that cost is lower, control is simple, I/O pin is more.
As shown in Figure 2, the output signal G of high pressure generator
out1' drawn by CPLD pin, improve driving force through ULN2803, then adopt optocoupler PS2703 isolation, obtain outputing signal G
out1+, G
out1-, the utility model provides some to such output signal; Peripheral hardware input signal G
iN1+, G
iN1-isolate through optocoupler PS2703, obtain G
iN1' being connected to CPLD pin, the utility model provides some to such input signal, according to the feature of external apparatus interface circuit, can input these, output signal and carry out selectivity connection.
Illustrate with example below, the utility model such as how a kind of interface circuit connects two kinds of different flat panel detectors easily.The feature of flat panel detector 1 interface circuit is low level circuits for triggering, and the feature of flat panel detector 2 interface circuit is high level circuits for triggering.
As shown in Figure 3, when being connected with flat panel detector 1, G
oUT1+ be connected with panel interface signal 3, G
oUT1-be connected with the GND of panel interface, G
iN1+ being connected with pull-up resistor R10, R10 is connected with dull and stereotyped power supply, G
in1-be connected with panel interface 6, after connecting like this, work as G
out1' for low level time, G
oUT1+ be low level, then the optocoupler PC1 conducting of dull and stereotyped end, EXP-REQ signal step-down, flat board can learn the output signal change of high pressure generator; When the relay switch SK1 of flat board end closes, high pressure G
iN1-become low level, optocoupler conducting, G
iN1' step-down, then high pressure learns dull and stereotyped output signal change.
As shown in Figure 4, when being connected with flat panel detector 2, G
oUT1+ being connected with pull-up resistor R10, R10 is connected with dull and stereotyped power supply, G
oUT1-be connected with panel interface signal 3, G
iN1+ be connected with dull and stereotyped power supply, G
iN1-be connected with panel interface 5, after connecting like this, work as G
out1' for low level time, G
oUT1-be high level, then the optocoupler DC1 conducting of dull and stereotyped end, PREP signal step-down, flat board can learn the output signal change of high pressure generator; When the EXP signal of flat board end is low, high input voltage signal G
iN1-become low level, optocoupler conducting, G
iN1' step-down, then high pressure learns the output signal change of this flat board.
We can find out that the interface circuit of this part is simple, flexible, when connecting from different flat boards, the interface circuit of high pressure is constant, avoid the problem needing to change high voltage interface circuit because peripheral hardware is different, this interface circuit is adopted to connect different peripheral hardwares, only need make different connection cables, therefore this interface circuit all can be connected with most of external equipment, uses light-coupled isolation to ensure that the fail safe of electrical connection simultaneously.
The foregoing describe the flexibility of high voltage interface circuit, but want real and flat panel detector collaborative work, must ensure that the interface sequence of high pressure and detector is correct, and different flat panel detector sequential interfaces may be different, if detector 1 interface signal is level triggers, significant level is low level; And detector 2 interface signal is rising edge triggering, original levels is low level.Same interface circuit can adaptive different signal sequence, and the method that the utility model adopts is exactly that these interface signals are all connected with programmable logic device, is carried out the different sequential of executive's interface signal by logic device (CPLD).
In order to the interface sequence allowing CPLD perform distinct device, need operator to define clock signal as requested, therefore, the utility model provides the man-machine interface of a defining interface signal, first operator defines which interface of this equipment use, then selects burst types, level state.As Fig. 5 high pressure generator interface sequence definitim flow describes.Above correspondence, the utility model connects the example of two kinds of detectors, when connecting detector 1, first configures input interface, selects G
iN1→ select level triggers → selection Low level effective → maximum response time is set to be 100ms; Then configure output interface, select G
oUT1→ select level triggers → selection Low level effective → maximum response time is set to be 100ms, after such configuration completes, this tries out novel will output signal according to customized information, and whether during stipulated time of 100ms effective, if effectively, enter downstream action if detecting input signal according to customized information.
Flexible design on above electrically upper, software, the utility model high pressure generator can be connected with the intrasystem equipment of various x-ray by operator very easily.
The utility model supports serial ports or Can bus communication.As Fig. 6 high pressure generator communication interface.
Serial communication is simple, reliable, and be the most frequently used communication modes of current medical system, CPU of the present utility model carries serial communication controller, therefore realizes serial communication very convenient, only needs a level transferring chip RS232 and resistance capacitance to coordinate.
Control for realizing efficient real-time, the utility model also supports CAN communication, can carry out work in the CAN control model of one master and multiple slaves as an intermediate node or terminal node.
The CPU that the utility model is selected carries Can communication controller, the Can transceiver selected is: CTM8251AT, remain one to enter one and go out two external interfaces simultaneously, as shown in Figure 6, tandem tap S2 and resistance R109 between the high level pin and low level pin of CAN chip, switches Can working node pattern by switch S 2.Like this, can carry out work as an intermediate node or terminal node in the CAN control model of one master and multiple slaves, the flexibility of CAN is also for the extensibility that this control system is good provides hardware foundation.
Above communication interface circuit design ensure that the operability of serial communication and Can communication, conveniently user selects different communication modes and communication design parameter, the utility model devises communication configuration file, by the operation to communication configuration file, user can select mechanics of communication parameter very easily.
Configuration file content is as follows:
First user configures and selects or do not select serial communication;
Then configure COM port, this configuration is only just effective when serial communication is selected;
Then configure the baud rate of serial communication, this configuration is only just effective when serial communication is selected;
If do not select serial communication, then select Can communication;
And configuring Can communication speed, this configuration is only just effective when serial communication is selected.
By above communication interface circuit and software merit rating design, user can realize required communication mode, communication speed very easily.
If above-mentioned each example is only to illustrate that the utility model is enumerated, the amendment of every equivalent transformation of carrying out on basis of the present utility model or individual circuit, software, all should not get rid of outside protection range of the present utility model.
Claims (9)
1. the medical X ray machine high pressure generator of an interface flexible, it is characterized in that: comprise the control circuit, inverter circuit, the fuel tank that are linked in sequence, and the filament driving circuit, anode driving circuit, external interface circuit, the communication interface circuit that are connected with control circuit; Described control circuit is connected with fuel tank; Described filament driving circuit is connected with fuel tank; Described external interface circuit is for connecting external equipment.
2. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 1, is characterized in that described external interface circuit comprises CPLD chip and connected driving isolation circuit.
3. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 2, is characterized in that described driving isolation circuit is multiple.
4. the medical X ray machine high pressure generator of a kind of interface flexible according to Claims 2 or 3, is characterized in that described driving isolation circuit comprises driving chip and two light-coupled isolation chips; The output of CPLD chip is connected by the input side diode output of driving chip with the first light-coupled isolation chip, and the input side diode input of the first light-coupled isolation chip, the outlet side diode input of the second light-coupled isolation chip are connected with power supply respectively by resistance; The outlet side diode output of the second light-coupled isolation chip is connected with the input of CPLD chip; The diode input of the first light-coupled isolation chip outlet side, output are respectively as output head anode, the negative pole of output end of external interface circuit, and the diode input of the second light-coupled isolation chip input side, output are respectively as input anode, the negative pole of output end of external interface circuit.
5. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 1, it is characterized in that the output head anode of described external interface circuit is for connecting the low level trigger input of external equipment, negative pole of output end is for connecting the output and ground of external equipment; The input anode of external interface circuit is used for being connected with external equipment power supply by resistance, and input cathode is connected with the low level output end of external equipment.
6. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 1, it is characterized in that the output head anode of described external interface circuit is for being connected with external equipment power supply by resistance, negative pole of output end is for connecting the high level trigger input of external equipment; The input anode of external interface circuit is used for being connected with external equipment power supply, and input cathode is connected with the low level output end of external equipment.
7. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 1, is characterized in that described communication interface circuit comprises CAN communication circuit and serial communication circuit; Described CAN communication circuit and serial communication circuit are all connected with the CPU of control circuit.
8. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 7, is characterized in that tandem tap and resistance between the CAN chip high level pin of described CAN communication circuit and low level pin.
9. the medical X ray machine high pressure generator of a kind of interface flexible according to claim 1, is characterized in that described external equipment comprises image amplifier, static flat panel detector, dynamically flat panel detector, dynamically grid, photodiode, ionization chamber, system sequence control system, rim brake backpedalling brake switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808018.4U CN205082040U (en) | 2015-10-13 | 2015-10-13 | Nimble medical X -ray production apparatus high voltage generator of interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808018.4U CN205082040U (en) | 2015-10-13 | 2015-10-13 | Nimble medical X -ray production apparatus high voltage generator of interface |
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| CN205082040U true CN205082040U (en) | 2016-03-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444768A (en) * | 2018-12-27 | 2019-03-08 | 山东蓝孚高能物理技术股份有限公司 | A kind of x-ray irradiation instrument high-voltage DC power supply test device |
| CN110602861A (en) * | 2019-09-02 | 2019-12-20 | 珠海市睿影科技有限公司 | Pet X-ray machine |
| CN114928259A (en) * | 2022-05-06 | 2022-08-19 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power consumption device |
-
2015
- 2015-10-13 CN CN201520808018.4U patent/CN205082040U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444768A (en) * | 2018-12-27 | 2019-03-08 | 山东蓝孚高能物理技术股份有限公司 | A kind of x-ray irradiation instrument high-voltage DC power supply test device |
| CN110602861A (en) * | 2019-09-02 | 2019-12-20 | 珠海市睿影科技有限公司 | Pet X-ray machine |
| CN114928259A (en) * | 2022-05-06 | 2022-08-19 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power consumption device |
| CN114928259B (en) * | 2022-05-06 | 2023-12-29 | 深圳市晟瑞科技有限公司 | Communication interface circuit and power utilization device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 117000 9 Yaodu street, Benxi Economic and Technological Development Zone, Benxi City, Liaoning Province Patentee after: Kuantang (Liaoning) Medical Equipment Co.,Ltd. Country or region after: China Address before: 117000 9 Yaodu street, Benxi Economic and Technological Development Zone, Benxi City, Liaoning Province Patentee before: LIAONING KAMPO MEDICAL SYSTEM Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |