CN201558415U - Intelligent microwave therapeutic instrument - Google Patents
Intelligent microwave therapeutic instrument Download PDFInfo
- Publication number
- CN201558415U CN201558415U CN200920177008XU CN200920177008U CN201558415U CN 201558415 U CN201558415 U CN 201558415U CN 200920177008X U CN200920177008X U CN 200920177008XU CN 200920177008 U CN200920177008 U CN 200920177008U CN 201558415 U CN201558415 U CN 201558415U
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- microcontroller
- magnetron
- converter
- module
- intelligent microwave
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Abstract
The utility model discloses an intelligent microwave therapeutic machine which belongs to the technical field of electronic medical equipment. The intelligent microwave therapeutic machine comprises a solid-state voltage regulator, a high-voltage transformer, a high-voltage rectifier bridge, a magnetron, a main control panel, a keyboard and a display which are sequentially connected, wherein a temperature sensor is connected on the magnetron, and a sampling resistor is connected between the high-voltage rectifier bridge and the anode of the magnetron in series; and the main control panel is integrated by a microcontroller, an A/D converter, a D/A converter, a control relay and a man-machine interface unit. The utility model has good linearization, high response speed, high control accuracy and good stability. The utility model can be matched with various irradiators and is used for treating the disease of each position.
Description
Affiliated technical field
This utility model relates to electromedical equipment, and especially microwave therapy apparatus belongs to the electromedical equipment technical field.
Background technology
At present, microwave therapy apparatus is to utilize heat that microwave produces at human body that patient's diseased region is carried out radiation, thereby reaches therapeutic purposes, and is remarkable in view of its therapeutic effect, is the desirable armarium that develops the not damaged treatment now.The microwave therapy apparatus import of each hospital's use occupies the majority at present; shortcomings such as the ubiquity volume is big, cost an arm and a leg, complicated operation; and the microwave therapy apparatus output power stability of domestic production is not good enough; cause therapeutic effect not obvious; lack some necessary protective measures; this makes that the safety of whole system is relatively poor, and intelligent degree is undesirable, and using operates seems inconvenient.
The utility model content
In order to overcome the above-mentioned deficiency of existing microwave therapy apparatus, this utility model provides a kind of output adjustable and stablize controlled output, safe and reliable microwave therapy apparatus.
The technical scheme that its technical problem that solves this utility model adopts is: the intelligent microwave therapy apparatus, comprise the solid-state voltage regulator 1, high-tension transformer 2, high-voltage rectifying bridge 3 and the magnetron M that connect successively, and master control borad 6, keyboard 7 and display 8, it is characterized in that, be connected with temperature sensor 5 on the magnetron M, the anode P of high-voltage rectifying bridge 3 and magnetron M
MBetween be in series with sampling resistor R; Master control borad 6 is integrated by microcontroller a, A/D converter b, D/A converter c, control relay d and man-machine interface unit e, and the junction point between high-voltage rectifying bridge 3 and the sampling resistor R is through the input S of A/D converter b and microcontroller a
1Connect the input S of the outfan of temperature sensor 5 and microcontroller a
2Connect; The outfan S of microcontroller a
3Be connected the outfan S of microcontroller a with the control end Rc of solid-state voltage regulator 1 through D/A converter c
4D is connected with control relay, and the normally opened contact switch k two ends of control relay d are connected with the input of power supply, solid-state voltage regulator 1 respectively; The data terminal S of microcontroller a
5Be connected the input termination keyboard 7 of man-machine interface unit e, its output termination display 8 with the data terminal of man-machine interface unit e.
Civil power produces the required adjustable high direct voltage of magnetron by solid-state voltage regulator, high-tension transformer, high-voltage rectifying bridge, and microcontroller is controlled the output of solid-state voltage regulator by the value of feedback to the anode of magnetron electric current, thus the output of stabilized magnetron.Magnetron produces microwave by the excitation cavity excitation, uses the microwave cable Transmission Microwave, and various microwave probes cooperate patient's affected tissue to treat.Temperature sensor is used for monitoring the temperature of magnetron, guarantees the magnetron reliably working.Microcontroller is used for controlling the normal operation of whole system, after sampling anode of magnetron electric current and analog digital conversion, compares with setting power, realizes power control by the digital PID algorithm.Simultaneously the anode sample rate current of magnetron is monitored in real time by microcontroller, in case the emergent power runaway condition can be reported to the police immediately, and be cut off output by force.Adopting collection temperature acquisition, data conversion is the real-time monitoring of the temperature sensor realization magnetron temperature of one, in case temperature surpasses setting value, also can report to the police immediately, and cut off output by force.To strengthen the safety and the reliability of system.Combination by software and hardware has realized man-machine interaction, the closed loop control of microwave power, the functions such as integrated protection of system.
The beneficial effects of the utility model are, linearisation is good, response speed is fast, and control accuracy height, good stability have overcome non-linear in the microwave power control, hysteresis, time and cashed and resemble.
Description of drawings
Fig. 1 is this utility model system architecture diagram;
Fig. 2 is a software architecture diagram in this utility model;
Fig. 3 is a software flow pattern in this utility model.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
The intelligent microwave therapy apparatus comprises the solid-state voltage regulator 1, high-tension transformer 2, high-voltage rectifying bridge 3 and the magnetron M that connect successively, and master control borad 6, keyboard 7 and display 8, is connected with temperature sensor 5 on the magnetron M, the anode P of high-voltage rectifying bridge 3 and magnetron M
MBetween be in series with sampling resistor R; Master control borad 6 is integrated by microcontroller a, A/D converter b, D/A converter c, control relay d and man-machine interface unit e, and the junction point between high-voltage rectifying bridge 3 and the sampling resistor R is through the input S of A/D converter b and microcontroller a
1Connect the input S of the outfan of temperature sensor 5 and microcontroller a
2Connect; The outfan S of microcontroller a
3Be connected the outfan S of microcontroller a with the control end Rc of solid-state voltage regulator 1 through D/A converter c
4D is connected with control relay, and the normally opened contact switch k two ends of control relay d are connected with the input of power supply, solid-state voltage regulator 1 respectively; The data terminal S of microcontroller a
5Be connected the input termination keyboard 7 of man-machine interface unit e, its output termination display 8 with the data terminal of man-machine interface unit e.As Fig. 1.
Microcontroller a adopts the embedded time sharing operating system of RTX-51 Tiny, comprises keyboard scan module S
k, digital display module D
d, power control module C
p, temperature power monitoring module M
tWith task allotment module T
a, preceding four modules are allocated module T with task respectively
aConnect.As Fig. 2.
The model of microcontroller a is STC10F08.
The model of temperature sensor 5 is DS18B20.
Civil power produces the required adjustable high direct voltage of magnetron M by solid-state voltage regulator 1, high-tension transformer 2, rectifier bridge 3, microcontroller a is by the value of feedback to magnetron M anode current, control the output of solid-state voltage regulator 1, thus the output of stabilized magnetron M.Magnetron M produces microwave by the excitation cavity excitation, uses the microwave cable Transmission Microwave, and various microwave probes cooperate patient's affected tissue to treat.Temperature sensor 5 is used for monitoring the temperature of magnetron, guarantees the magnetron reliably working.Microcontroller a is used for controlling the normal operation of whole system, by sampling magnetron M anode current and after A/D converter 7 conversions, compares with setting power, realizes power control by the digital PID algorithm.Simultaneously to the anode P of magnetron M
MSample rate current is monitored in real time by microcontroller a, in case emergent power runaway condition, can report to the police immediately, and cut off by force and export, employing collection temperature acquisition, data conversion are that the temperature of the DS18B20 temperature sensor 5 realization magnetron M of one is monitored in real time, in case temperature surpasses setting value, also can report to the police immediately, and cut off output by force, to strengthen the safety and the reliability of system.
Operating system is divided into five big modules by function, is respectively keyboard scan module S
k, digital display module D
d, power control module C
p, temperature power monitoring module M
tAnd task allotment module T
aKeyboard scan module S
kTask be to cooperate hardware circuit to realize that keyboard scan task, key assignments resolve task dispatching; Digital display module D
dTask be to cooperate hardware, show power, time, scheme etc.; Power control module C
pMainly be for the readout power value, realize digital PID control, power control output etc.; Temperature power monitoring module M
tMain task is to detect magnetron temperature and magnetron power, in case the unusual output of just cutting off occurs, guarantees safety; Task allotment module T
aMain task is to coordinate the cooperation of other each intermodule, makes it to become organic whole.As Fig. 2.
Operating system is divided into three big subtasks by task: man machine interface task, power control task, system protection task.The whole control system stability and interference free performance are strengthened greatly, accelerated desin speed and code simultaneously and be easy to safeguard.The man machine interface task is responsible for keyboard scan, is read key assignments, key assignments is resolved; The power control task is responsible for determining different output valve (piecewise fitting) according to the performance number of difference input, and is adopted the digital PID algorithm according to value of feedback, finally definite output valve.Such design has improved the reliability of control and the performance of response fast, has overcome non-linear in the microwave power control, hysteresis, time and has cashed and resemble; Whether magnetron temperature and performance number that the mainly responsible monitor temperature pick off of system protection task is measured be out of control, if in case break down cut-out output at once, assurance safety.As Fig. 3.
For reliability and the anti-interference that strengthens instrument, used the house dog program, when microcontroller because of disturbing, when program fleet occurring, the house dog program microcontroller that can reset makes system runaway condition can not occur, has improved the safety of whole microwave therapy apparatus.For reliability that improves control and the performance that responds fast, adopt closed loop control and used the digital PID algorithm, because the output of magnetron is subjected to many-sided influences such as line voltage, operating temperature and working time, that its output has is non-linear, hysteresis, the time characteristics such as change, carry out piecewise fitting so will set input, and be provided with different correction coefficients at each section, make output more steady.
The control scheme of this microwave power has fundamentally solved the imbalance of microwave output power.The holding circuit that increases on the hardware, the security performance of instrument is greatly improved, control strategy has adopted piecewise fitting to add the method that PID control is merged, the characteristics that existing linearisation is good, response speed is fast, advantage that PID control accuracy height, good stability are arranged again, overcome non-linear in the microwave power control, hysteresis, the time characteristic such as the change difficulty brought; Embedded OS makes the operability of whole microwave therapeutic system, and safety and stability have all reached a new height, and the maintainability of program is greatly improved; The application of house dog program makes system can adapt to more complicated environment for use.
Buzzer drive circuit is pointed out therapeutic state and fault jointly in conjunction with light emitting diode.Operation for convenience is provided with treatment physical therapy shift key, pulse frequency key, POWER LEVEL, time adjusting key and reset key.
Claims (4)
1. intelligent microwave therapy apparatus, comprise the solid-state voltage regulator (1), high-tension transformer (2), high-voltage rectifying bridge (3) and the magnetron (M) that connect successively, and master control borad (6), keyboard (7) and display (8), it is characterized in that, be connected with temperature sensor (5) on the magnetron (M), the anode (P of high-voltage rectifying bridge (3) and magnetron (M)
M) between be in series with sampling resistor (R); Master control borad (6) is integrated by microcontroller (a), A/D converter (b), D/A converter (c), control relay (d) and man-machine interface unit (e), and the junction point between high-voltage rectifying bridge (3) and the sampling resistor (R) is through the input (S of A/D converter (b) with microcontroller (a)
1) connect the input (S of the outfan of temperature sensor (5) and microcontroller (a)
2) connect; Outfan (the S of microcontroller (a)
3) be connected the outfan (S of microcontroller (a) through D/A converter (c) with the control end (Rc) of solid-state voltage regulator (1)
4) be connected with control relay (d), normally opened contact switch (k) two ends of control relay (d) are connected with the input of power supply, solid-state voltage regulator (1) respectively; Data terminal (the S of microcontroller (a)
5) be connected with the data terminal of man-machine interface unit (e), the input termination keyboard (7) of man-machine interface unit (e), it exports termination display (8).
2. intelligent microwave therapy apparatus according to claim 1 is characterized in that, described microcontroller (a) adopts embedded time sharing operating system, comprises keyboard scan module (S
k), digital display module (D
d), power control module (Cp), temperature, power monitoring module (Mt) and task allotment module (Ta), preceding four modules are connected with task allotment module (Ta) respectively.
3. intelligent microwave therapy apparatus according to claim 1 is characterized in that, the model of described microcontroller (a) is STC10F08.
4. intelligent microwave therapy apparatus according to claim 1 is characterized in that, the model of described temperature sensor (5) is DS18B20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920177008XU CN201558415U (en) | 2009-09-24 | 2009-09-24 | Intelligent microwave therapeutic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920177008XU CN201558415U (en) | 2009-09-24 | 2009-09-24 | Intelligent microwave therapeutic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201558415U true CN201558415U (en) | 2010-08-25 |
Family
ID=42623561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920177008XU Expired - Lifetime CN201558415U (en) | 2009-09-24 | 2009-09-24 | Intelligent microwave therapeutic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201558415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869871A (en) * | 2014-03-21 | 2014-06-18 | 毛晓娟 | Microwave power control method |
| CN108014423A (en) * | 2018-01-24 | 2018-05-11 | 厦门美得乐健康管理有限公司 | A kind of microwave physical therapy instrument control system |
-
2009
- 2009-09-24 CN CN200920177008XU patent/CN201558415U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869871A (en) * | 2014-03-21 | 2014-06-18 | 毛晓娟 | Microwave power control method |
| CN103869871B (en) * | 2014-03-21 | 2015-10-28 | 毛晓娟 | Microwave power control method |
| CN108014423A (en) * | 2018-01-24 | 2018-05-11 | 厦门美得乐健康管理有限公司 | A kind of microwave physical therapy instrument control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |