CN107046275A - A kind of Medical Devices air pressure duplicate protection system and method - Google Patents
A kind of Medical Devices air pressure duplicate protection system and method Download PDFInfo
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- CN107046275A CN107046275A CN201710220768.3A CN201710220768A CN107046275A CN 107046275 A CN107046275 A CN 107046275A CN 201710220768 A CN201710220768 A CN 201710220768A CN 107046275 A CN107046275 A CN 107046275A
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- 238000000034 method Methods 0.000 title claims description 7
- 238000007689 inspection Methods 0.000 claims abstract description 23
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- 238000007599 discharging Methods 0.000 claims description 78
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- 238000006243 chemical reaction Methods 0.000 claims description 4
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- 230000036632 reaction speed Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 3
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- 239000003814 drug Substances 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
Abstract
A kind of Medical Devices air pressure duplicate protection system disclosed by the invention, including single-chip microcomputer, single-chip microcomputer, which produces signal source and transmitted to pneumatic control circuits, exports a voltage voltage input, and the voltage voltage input is divided into two-way：All the way by baroswitch to Pneumatic controller；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal, and electric circuit inspection unit exports a Trig control signal, and the voltage-controlled system of trigger gas switches off voltage voltage input, so as to cut off Pneumatic controller；When single-chip microcomputer judges the pressure anomaly of air pressure output device by pressure sensor, pressure acquisition circuit, output protection signal control baroswitch disconnects, so as to cut off Pneumatic controller.The present invention overcomes the defects such as the gas control delay of response of existing Medical Devices, reliability deficiency, and with air pressure double protection functions, and the first reaction speed protected again is far faster than traditional air pressure safeguard measure.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of Medical Devices air pressure duplicate protection system and method.
Background technology
With the change of the continuous progress and development of society, and population structure, medical rehabilitation gradually obtains the pass of common people
Note is with paying attention to.And medicine equipment is a very important part in medical rehabilitation, in the activity such as many medical treatment, rehabilitations now
All it be unable to do without medicine equipment.In medicine equipment, many equipment have to be controlled using air pressure, in order to ensure that the safety of equipment makes
With essentially all of equipment has certain gas circuit safeguard measure.
At present, existing air pressure safeguard measure be usually controller by monitoring pressure in real time sensor signal, work as gas circuit
When abnormal, the signal that pressure sensor is collected sends single-chip microcomputer to, and single-chip microcomputer responds processing, so as to allow gas circuit to stop work
Make.This system that response is detected by baroceptor, although quickly, but in this event raced against time of medical treatment,
After exception occurs in gas circuit, system just detects signal, then sends alarm or close gas conveying, and this is very likely
Injury is caused to patient.Moreover, the reliability of single gas circuit protection is not enough, once pressure sensor cisco unity malfunction,
Or during program exception, system will lose the monitoring to gas circuit loop and control function, and now pressure size is just uncontrollable,
Unexpected injury is very likely caused to patient.
Therefore, design is a kind of can improve the speed of pressure abnormity processing, and the system tool protected with dual air pressure
It is of great importance.
The content of the invention
The defects such as gas control delay of response, reliability deficiency it is an object of the invention to overcome existing Medical Devices, are carried
For a kind of Medical Devices air pressure duplicate protection system, the system has an air pressure double protection functions, and first protect again it is anti-
Speed is answered far faster than traditional air pressure safeguard measure.
Another object of the present invention is to provide a kind of Medical Devices air pressure double protection method.
The purpose of the present invention is realized by following technical scheme：
A kind of Medical Devices air pressure duplicate protection system, including single-chip microcomputer, pneumatic control circuits, electric circuit inspection unit, gas
Controlling switch, Pneumatic controller, air pressure output device, pressure sensor, pressure acquisition circuit are pressed, wherein single-chip microcomputer produces gas
The signal source Ui of voltage-controlled circuit processed is simultaneously transmitted to pneumatic control circuits, and pneumatic control circuits export a voltage voltage input, described
Voltage voltage input is divided into two-way：All the way the control of Pneumatic controller is used as by baroswitch to Pneumatic controller
Signal, realizes the control of air pressure size；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal, electric circuit inspection
Unit exports a Trig control signal, triggers baroswitch, baroswitch off voltage voltage input, so as to cut off
Pneumatic controller, realizes air pressure defencive function；Pneumatic controller is used to control whether air pressure output device works；Single-chip microcomputer
Judge whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, when judging abnormal, output is protected
Signal is protected to baroswitch, control baroswitch disconnects, so as to cut off Pneumatic controller.
The pneumatic control circuits include amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, electric capacity C6, signal
Source Ui is reached after being amplified by amplifying circuit is transferred to positive-negative-positive pipe Q1 after integrating circuit, integration, after positive-negative-positive pipe Q1 amplifications
An in-phase input end of integrating circuit is connected by difference channel again, a closed-loop control network, electric capacity C6 one end is constituted
Ground connection, the other end is connected and output voltage control source with difference channel, positive-negative-positive pipe Q1 respectively.
The pneumatic control circuits also include voltage-regulator diode D1, resistance R3, resistance R4, resistance R6, electric capacity C1, electric capacity
C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B, wherein resistance R1 one end and integrated transporting discharging
U1B inverting input connection, the output end of the other end and integrated transporting discharging U1B is commonly connected to integrating circuit；The one of resistance R2
End is connected with integrated transporting discharging U1B inverting input, other end input signal source Ui；Integrated transporting discharging U1B homophase input termination
Ground；
The integrating circuit includes resistance R5, electric capacity C2, integrated transporting discharging U2B, wherein resistance R5 one end and integrated transporting discharging
U1B output end connection, the other end is connected with integrated transporting discharging U2B inverting input；Electric capacity C2 one end and integrated transporting discharging U2B
Inverting input connection, the other end and integrated transporting discharging U2B output end is commonly connected to voltage-regulator diode D1 negative pole, voltage stabilizing
Base stage of the diode D1 positive pole with positive-negative-positive pipe Q1 after resistance R6 is connected；Resistance R3 one end is with voltage-regulator diode D1's
Positive pole is connected, and the other end is connected with positive-negative-positive pipe Q1 emitter stage；Resistance R4 one end is connected with positive-negative-positive pipe Q1 base stage, another
End is connected with positive-negative-positive pipe Q1 emitter stage；The emitter stage of electric capacity C1, electric capacity C3 one end respectively with positive-negative-positive pipe Q1 is connected, another
End is grounded respectively；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein
Integrated transporting discharging U3B output end is connected with integrated transporting discharging U2B in-phase input end, and resistance R13 one end is with integrated transporting discharging U3B's
Inverting input is connected, and the other end is connected with integrated transporting discharging U2B in-phase input end；Resistance R8 one end and integrated transporting discharging U3B
In-phase input end connection, the other end ground connection；Resistance R7 one end is connected with integrated transporting discharging U3B in-phase input end, the other end
It is connected with positive-negative-positive pipe Q1 colelctor electrode pole；Resistance R9 one end is connected with positive-negative-positive pipe Q1 colelctor electrode pole, the other end and electric capacity
C6 connections.
The electric circuit inspection unit includes resistance R11, resistance R12, integrated transporting discharging U4B, wherein resistance R11 one end and gas
Voltage-controlled circuit processed is connected, input voltage voltage input, other end integrated transporting discharging U4B in-phase input end connection；Resistance R12 one end
It is connected with pneumatic control circuits, other end ground connection；Integrated transporting discharging U4B inverting input connects with integrated transporting discharging U4B output end
Connect, integrated transporting discharging U4B output end is connected with baroswitch.
The baroswitch includes resistance R18, NPN type pipe Q2, voltage-regulator diode D2, wherein relay, resistance R18
One end be connected with electric circuit inspection unit, the other end is connected with NPN type pipe Q2 base stage；NPN type pipe Q2 grounded emitter, collection
Electrode is connected by voltage-regulator diode D2 with relay；Relay is connected with Pneumatic controller.
The pressure acquisition circuit includes resistance R15, resistance R16, resistance R17, electric capacity C8, electric capacity C9, integrated transporting discharging
U5B, wherein electric capacity C8 one end is connected with single-chip microcomputer, other end ground connection；Resistance R15 one end is connected with single-chip microcomputer, the other end
It is connected with integrated transporting discharging U5B output ends；Integrated transporting discharging U5B output ends are connected with in-phase input end, and integrated transporting discharging U5B's is anti-phase defeated
Enter end to be connected with pressure sensor by resistance R16；Resistance R17, electric capacity C9 one end it is anti-phase defeated with integrated transporting discharging U5B respectively
Enter end connection, the other end is grounded respectively.
The Pneumatic controller includes magnetic valve, air pump, proportioning valve.
The air pressure output device includes air pressure shock wave handle, air bag, airbag.
Another object of the present invention is realized by following technical scheme：
A kind of Medical Devices air pressure double protection method, is comprised the steps of：
Single-chip microcomputer produces the signal source Ui of pneumatic control circuits and transmitted to pneumatic control circuits, pneumatic control circuits output
One voltage voltage input；
Voltage voltage input is divided into two-way：All the way by baroswitch to Pneumatic controller, control to fill as air pressure
The control signal put, realizes the control of air pressure size；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal,
Electric circuit inspection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input,
So as to cut off Pneumatic controller, air pressure defencive function is realized；Pneumatic controller be used for control air pressure output device whether work
Make；
Single-chip microcomputer judges whether the pressure of air pressure output device is normal, sentences by pressure sensor, pressure acquisition circuit
When fixed abnormal, output protection signal to baroswitch, control baroswitch disconnects, so as to cut off air pressure control dress
Put.
The single-chip microcomputer produces the signal source Ui of pneumatic control circuits, is accomplished by the following way：Single-chip microcomputer is produced
PWM value pass through LPF or DAC conversion produce pneumatic control circuits signal source Ui.
The present invention compared with prior art, has the following advantages that and beneficial effect：
1st, reaction when circuit checker of the invention occurs abnormal to air pressure is more rapid, timely, and adds
One heavy air pressure defencive function, increases electric circuit inspection module, reaches the function of protection air pressure.
2nd, according to the realization of above technology, present invention reduces risk of the patient by unexpected injury, it more disclosure satisfy that medical treatment
The safe handling demand of equipment, with safer guarantee.
3rd, electric circuit inspection unit of the present invention, baroswitch, Pneumatic controller constitute first and protected again；Pressure sensing
Device, pressure acquisition circuit, single-chip microcomputer, baroswitch, Pneumatic controller constitute second and protected again.Actually of the invention
Duplicate protection is not made strict priority and distinguished, but duplicate protection is while in action, only often cause gas circuit abnormal
Most of reason be control circuit abnormality trigger, so electric circuit inspection unit, baroswitch, Pneumatic controller group
Into protection scheme tend to quickly respond, so referred to as first protects again；And gas circuit is detectd by pressure sensor extremely
Measuring often has hysteresis quality, so referred to as second protects again.If the change of air pressure is sufficiently fast, second protects that also have can again
First can be become to protect again, or the first protection and the second protection startup simultaneously again again.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Medical Devices air pressure duplicate protection system of the present invention.
Fig. 2 is a kind of circuit diagram of Medical Devices air pressure duplicate protection system of the present invention.
Fig. 3 is the circuit diagram of pneumatic control circuits of the present invention.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Such as Fig. 1, a kind of Medical Devices air pressure duplicate protection system, including single-chip microcomputer, pneumatic control circuits, electric circuit inspection list
Member, baroswitch, Pneumatic controller, air pressure output device, pressure sensor, wherein pressure acquisition circuit, single-chip microcomputer
Produce the signal source Ui of pneumatic control circuits and transmit to pneumatic control circuits, pneumatic control circuits export a voltage control
Source, the voltage voltage input is divided into two-way：All the way Pneumatic controller is used as by baroswitch to Pneumatic controller
Control signal, realize the control of air pressure size；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal, electricity
Road detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input, from
And Pneumatic controller is cut off, realize air pressure defencive function；Pneumatic controller is used to control whether air pressure output device works；
Single-chip microcomputer judges whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, when judging abnormal,
Output protection signal is to baroswitch, and control baroswitch disconnects, so as to cut off Pneumatic controller.
The pneumatic control circuits include amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, electric capacity C6, signal
Source Ui is reached after being amplified by amplifying circuit is transferred to positive-negative-positive pipe Q1 after integrating circuit, integration, after positive-negative-positive pipe Q1 amplifications
An in-phase input end of integrating circuit is connected by difference channel again, a closed-loop control network, electric capacity C6 one end is constituted
Ground connection, the other end is connected and output voltage control source with difference channel, positive-negative-positive pipe Q1 respectively.
Such as Fig. 3, the pneumatic control circuits also include voltage-regulator diode D1, resistance R3, resistance R4, resistance R6, electric capacity C1,
Electric capacity C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B, wherein resistance R1 one end and integrated transporting discharging
U1B inverting input connection, the output end of the other end and integrated transporting discharging U1B is commonly connected to integrating circuit；The one of resistance R2
End is connected with integrated transporting discharging U1B inverting input, other end input signal source Ui；Integrated transporting discharging U1B homophase input termination
Ground；Integrated transporting discharging U1B model LM358M；
The integrating circuit includes resistance R5, electric capacity C2, integrated transporting discharging U2B, wherein resistance R5 one end and integrated transporting discharging
U1B output end connection, the other end is connected with integrated transporting discharging U2B inverting input；Electric capacity C2 one end and integrated transporting discharging U2B
Inverting input connection, the other end and integrated transporting discharging U2B output end is commonly connected to voltage-regulator diode D1 negative pole, voltage stabilizing
Base stage of the diode D1 positive pole with positive-negative-positive pipe Q1 after resistance R6 is connected；Resistance R3 one end is with voltage-regulator diode D1's
Positive pole is connected, and the other end is connected with positive-negative-positive pipe Q1 emitter stage；Resistance R4 one end is connected with positive-negative-positive pipe Q1 base stage, another
End is connected with positive-negative-positive pipe Q1 emitter stage；The emitter stage of electric capacity C1, electric capacity C3 one end respectively with positive-negative-positive pipe Q1 is connected, another
End is grounded respectively；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein
Integrated transporting discharging U3B output end is connected with integrated transporting discharging U2B in-phase input end, and resistance R13 one end is with integrated transporting discharging U3B's
Inverting input is connected, and the other end is connected with integrated transporting discharging U2B in-phase input end；Resistance R8 one end and integrated transporting discharging U3B
In-phase input end connection, the other end ground connection；Resistance R7 one end is connected with integrated transporting discharging U3B in-phase input end, the other end
It is connected with positive-negative-positive pipe Q1 colelctor electrode pole；Resistance R9 one end is connected with positive-negative-positive pipe Q1 colelctor electrode pole, the other end and electric capacity
C6 connections.
Such as Fig. 2, the electric circuit inspection unit includes resistance R11, resistance R12, the one of integrated transporting discharging U4B, wherein resistance R11
End is connected with pneumatic control circuits, input voltage voltage input, other end integrated transporting discharging U4B in-phase input end connection；Resistance R12
One end be connected with pneumatic control circuits, the other end ground connection；Integrated transporting discharging U4B inverting input is defeated with integrated transporting discharging U4B's
Go out end connection, integrated transporting discharging U4B output end is connected with baroswitch.
Such as Fig. 2, the baroswitch includes resistance R18, NPN type pipe Q2, voltage-regulator diode D2, relay, wherein
Resistance R18 one end is connected with electric circuit inspection unit, and the other end is connected with NPN type pipe Q2 base stage；NPN type pipe Q2 emitter stage
Ground connection, colelctor electrode is connected by voltage-regulator diode D2 with relay；Relay is connected with Pneumatic controller.
Such as Fig. 2, the pressure acquisition circuit includes resistance R15, resistance R16, resistance R17, electric capacity C8, electric capacity C9, integrated
Amplifier U5B, wherein electric capacity C8 one end is connected with single-chip microcomputer, other end ground connection；Resistance R15 one end is connected with single-chip microcomputer, separately
One end is connected with integrated transporting discharging U5B output ends；Integrated transporting discharging U5B output ends are connected with in-phase input end, and integrated transporting discharging U5B's is anti-
Phase input is connected by resistance R16 with pressure sensor；Pressure sensor is arranged among air pressure output device or annex,
Air pressure size for monitoring air pressure output device；Resistance R17, electric capacity C9 one end it is anti-phase defeated with integrated transporting discharging U5B respectively
Enter end connection, the other end is grounded respectively.
The Pneumatic controller includes magnetic valve, air pump, proportioning valve etc..
The air pressure output device includes air pressure shock wave handle, air bag, airbag.
A kind of Medical Devices air pressure double protection method, is comprised the steps of：
The PWM value that single-chip microcomputer is produced produces the signal source Ui of pneumatic control circuits by LPF or DAC conversions.Air pressure
Signal source Ui is reached after integrating circuit, integration after being amplified by amplifying circuit to amplifier tube Q1 in control circuit, is led to after Q1 amplifications
Difference channel is crossed, U2B is coupled to, a closed-loop control network is constituted, C6+ ends export one with U2B 6P mirror voltages；So as to
Export an accurately voltage voltage input.
Voltage voltage input is divided into two-way：All the way Pneumatic controller is used as by relay switch to Pneumatic controller
Control signal, realize the control of air pressure size；Another road is connected to the first heavy protection circuit detection module, works as pneumatic control circuits
When abnormal, electric circuit inspection module one Trig control signal of output, trigger relay, relay off voltage voltage input, so that
Pneumatic controller is cut off, air pressure defencive function is realized.
When the first heavy shielding failure, the second heavy protection act：By pressure sensor air pressure acquisition circuit, single-chip microcomputer leads to
ADC is crossed, pressure abnormity, output control protection signal is judged：Second protects control signal again.Second protects control signal to be connected to again
R19, R19 are coupled to Q2.When second again protection control signal uprise when, can also control relay disconnect, so as to cut off air pressure
Control device, realizes air pressure defencive function.So as to realize the double protection functions of air pressure.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of Medical Devices air pressure duplicate protection system, it is characterised in that：Including single-chip microcomputer, pneumatic control circuits, circuit inspection
Unit, baroswitch, Pneumatic controller, air pressure output device, pressure sensor, pressure acquisition circuit are surveyed, wherein singly
Piece machine produces the signal source Ui of pneumatic control circuits and transmitted to pneumatic control circuits, and pneumatic control circuits export a voltage control
Source processed, the voltage voltage input is divided into two-way：All the way by baroswitch to Pneumatic controller, control to fill as air pressure
The control signal put, realizes the control of air pressure size；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal,
Electric circuit inspection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input,
So as to cut off Pneumatic controller, air pressure defencive function is realized；Pneumatic controller be used for control air pressure output device whether work
Make；Single-chip microcomputer judges whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, judges abnormal
When, output protection signal to baroswitch, control baroswitch disconnects, so as to cut off Pneumatic controller.
2. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The pneumatic control circuits bag
Amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, electric capacity C6 are included, signal source Ui is reached after amplifying by amplifying circuit
Positive-negative-positive pipe Q1 is transferred to after integrating circuit, integration, integrating circuit is connected by difference channel again after positive-negative-positive pipe Q1 amplifications
An in-phase input end, constitute a closed-loop control network, electric capacity C6 one end ground connection, the other end respectively with difference channel,
Positive-negative-positive pipe Q1 connections and output voltage control source.
3. Medical Devices air pressure duplicate protection system according to claim 2, it is characterised in that：The pneumatic control circuits are also
Including voltage-regulator diode D1, resistance R3, resistance R4, resistance R6, electric capacity C1, electric capacity C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B, and wherein resistance R1 one end is with integrated transporting discharging U1B's
Inverting input is connected, and the output end of the other end and integrated transporting discharging U1B is commonly connected to integrating circuit；Resistance R2 one end and collection
Inverting input into amplifier U1B is connected, other end input signal source Ui；Integrated transporting discharging U1B in-phase input end ground connection；
The integrating circuit includes resistance R5, electric capacity C2, integrated transporting discharging U2B, and wherein resistance R5 one end is with integrated transporting discharging U1B's
Output end is connected, and the other end is connected with integrated transporting discharging U2B inverting input；Electric capacity C2 one end is anti-with integrated transporting discharging U2B's
Phase input is connected, and the other end and integrated transporting discharging U2B output end are commonly connected to voltage-regulator diode D1 negative pole, the pole of voltage stabilizing two
Base stage of the pipe D1 positive pole with positive-negative-positive pipe Q1 after resistance R6 is connected；Resistance R3 one end and voltage-regulator diode D1 positive pole
Connection, the other end is connected with positive-negative-positive pipe Q1 emitter stage；Resistance R4 one end is connected with positive-negative-positive pipe Q1 base stage, the other end with
Positive-negative-positive pipe Q1 emitter stage connection；The emitter stage of electric capacity C1, electric capacity C3 one end respectively with positive-negative-positive pipe Q1 is connected, the other end point
It is not grounded；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein integrated
Amplifier U3B output end is connected with integrated transporting discharging U2B in-phase input end, and resistance R13 one end is anti-phase with integrated transporting discharging U3B's
Input is connected, and the other end is connected with integrated transporting discharging U2B in-phase input end；Resistance R8 one end is same with integrated transporting discharging U3B's
Phase input is connected, other end ground connection；Resistance R7 one end is connected with integrated transporting discharging U3B in-phase input end, the other end and PNP
Type pipe Q1 colelctor electrode pole connection；Resistance R9 one end is connected with positive-negative-positive pipe Q1 colelctor electrode pole, and the other end connects with electric capacity C6
Connect.
4. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The electric circuit inspection unit bag
Resistance R11, resistance R12, integrated transporting discharging U4B are included, wherein resistance R11 one end is connected with pneumatic control circuits, input voltage control
Source processed, other end integrated transporting discharging U4B in-phase input end connection；Resistance R12 one end is connected with pneumatic control circuits, the other end
Ground connection；Integrated transporting discharging U4B inverting input is connected with integrated transporting discharging U4B output end, integrated transporting discharging U4B output end and gas
Press controlling switch connection.
5. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The baroswitch bag
Resistance R18, NPN type pipe Q2, voltage-regulator diode D2, relay are included, wherein resistance R18 one end is connected with electric circuit inspection unit,
The other end is connected with NPN type pipe Q2 base stage；NPN type pipe Q2 grounded emitter, colelctor electrode by voltage-regulator diode D2 with after
Electrical equipment is connected；Relay is connected with Pneumatic controller.
6. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The pressure acquisition circuit bag
Include resistance R15, resistance R16, resistance R17, electric capacity C8, electric capacity C9, integrated transporting discharging U5B, wherein electric capacity C8 one end and single-chip microcomputer
Connection, other end ground connection；Resistance R15 one end is connected with single-chip microcomputer, and the other end is connected with integrated transporting discharging U5B output ends；It is integrated
Amplifier U5B output ends are connected with in-phase input end, and integrated transporting discharging U5B inverting input passes through resistance R16 and pressure sensor
Connection；The inverting input of resistance R17, electric capacity C9 one end respectively with integrated transporting discharging U5B is connected, and the other end is grounded respectively.
7. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The Pneumatic controller bag
Include magnetic valve, air pump, proportioning valve.
8. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that：The air pressure output device bag
Include air pressure shock wave handle, air bag, airbag.
9. a kind of Medical Devices air pressure double protection method, it is characterised in that comprise the steps of：
Single-chip microcomputer produces the signal source Ui of pneumatic control circuits and transmitted to pneumatic control circuits, and pneumatic control circuits export one
Voltage voltage input；
Voltage voltage input is divided into two-way：All the way Pneumatic controller is used as by baroswitch to Pneumatic controller
Control signal, realizes the control of air pressure size；Another road is connected to electric circuit inspection unit, when pneumatic control circuits are abnormal, circuit
Detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input, so that
Pneumatic controller is cut off, air pressure defencive function is realized；Pneumatic controller is used to control whether air pressure output device works；
Single-chip microcomputer judges whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, judges different
Chang Shi, output protection signal to baroswitch, control baroswitch disconnects, so as to cut off Pneumatic controller.
10. Medical Devices air pressure duplicate protection system according to claim 9, it is characterised in that：The single-chip microcomputer produces gas
The signal source Ui of voltage-controlled circuit processed, is accomplished by the following way：The PWM value that single-chip microcomputer is produced passes through LPF or DAC
Conversion produces the signal source Ui of pneumatic control circuits.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710220768.3A CN107046275B (en) | 2017-04-06 | 2017-04-06 | A kind of Medical Devices air pressure duplicate protection system and method |
| PCT/CN2017/115170 WO2018184398A1 (en) | 2017-04-06 | 2017-12-08 | Air-pressure double-protection system and method for medical device |
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| CN201710220768.3A CN107046275B (en) | 2017-04-06 | 2017-04-06 | A kind of Medical Devices air pressure duplicate protection system and method |
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| CN107046275A true CN107046275A (en) | 2017-08-15 |
| CN107046275B CN107046275B (en) | 2019-05-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018184398A1 (en) * | 2017-04-06 | 2018-10-11 | 广州龙之杰科技有限公司 | Air-pressure double-protection system and method for medical device |
| CN109471393A (en) * | 2018-11-22 | 2019-03-15 | 广州龙之杰科技有限公司 | A kind of device and method in security control magnetic field |
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| WO2018184398A1 (en) * | 2017-04-06 | 2018-10-11 | 广州龙之杰科技有限公司 | Air-pressure double-protection system and method for medical device |
| CN109471393A (en) * | 2018-11-22 | 2019-03-15 | 广州龙之杰科技有限公司 | A kind of device and method in security control magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018184398A1 (en) | 2018-10-11 |
| CN107046275B (en) | 2019-05-24 |
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Denomination of invention: A pneumatic double protection system and method for medical equipment Effective date of registration: 20220711 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022440000141 |
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Denomination of invention: A dual pressure protection system and method for medical equipment Effective date of registration: 20231208 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980070353 |