CN101862494B - Control method of breathing machine and control system applicable to same - Google Patents
Control method of breathing machine and control system applicable to same Download PDFInfo
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- CN101862494B CN101862494B CN 201010211338 CN201010211338A CN101862494B CN 101862494 B CN101862494 B CN 101862494B CN 201010211338 CN201010211338 CN 201010211338 CN 201010211338 A CN201010211338 A CN 201010211338A CN 101862494 B CN101862494 B CN 101862494B
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Abstract
The invention discloses a control method of a breathing machine and a control system applicable to the same. The control system is provided with a first singlechip and a second singlechip. The first singlechip communicates with the second singlechip and sends operation parameters to the second signlechip, wherein the communication time interval does not exceed a preset value. When the first singlechip is reset, the second singlechip is required to return the operation parameters first, and then the working state of the first singlechip is set according to the operation parameters to restore the first singlechip to the state before a dead halt. The second singlechip receives and stores the operation parameters from the first singlechip, and at the same time, monitors the communication time interval to see if the communication time interval exceeds the preset value, and if the communication time interval exceeds the preset value, sends a resetting signal to the first signlechip so as to allow the first singlechip to reset. In the invention, the first singlechip, after resetting from the dead halt, can restore the state before the dead halt directly according to feedback operation parameters without self-checking, so time is saved, working continuity is ensured and life safety of the patient is assured.
Description
Technical field
The present invention relates to a kind of control method of respirator and control system that this control is suitable for of being used for, specifically, relate to a kind of method and system thereof that adopts microcomputer to control.
Background technology
Respirator is a kind of Medical Instruments of supporting that the insufficient patient of respiration capability breathes of being used to, such as, can be used as the part of anesthetic machine usually, in operation process, patient is implemented anesthesia, and postanesthetic patient is implemented passive breathing.
At present, nearly all respirator all is to adopt microcomputer to control.Such as, adopt a single-chip microcomputer to receive the demonstration etc. of the input from the signal of pick off and keyboard, the frequency of carrying out data computation, control ventilation and air pressure, processing operation interface.Along with the progress of science and technology, the function that respirator can be realized is also complicated day by day, and is corresponding, and the performance requirement of the microcomputer that is used to control is also improved day by day.Such as, can adopt one 32 ARM single-chip microcomputer to come each periphery is provided with usually and implement control, the speed of service height of ARM single-chip microcomputer, date processing energy, outside extended capability are also very strong.
As the Medical Instruments of maintaining patient's life, the stability of the machine that must ensure respiration operation.In case control system owing to reasons such as deadlock are collapsed, then possibly cause patient to suffocate, and causes life danger.Therefore, when the control system of design respirator, must stability be placed above the other things, functionally be placed on second.
Be example with above-mentioned ARM single-chip microcomputer equally, because the ancillary equipment of its connection is many, these ancillary equipment all hang on the bus, and program is externally to move among the ROM, and data also are to be stored in the external RAM, so capacity of resisting disturbance is relatively poor relatively.In case be interfered on the bus, will make program fleet, and then cause system crash.In the work, system in case collapse then must make system reset or restart.After resetting, the ARM single-chip microcomputer at first can carry out System self-test according to the start flow process.This self check will spend certain hour, if overlong time then can influence patient's life safety.On the other hand, even the self check rapid speed, the ARM single-chip microcomputer gets into duty rapidly, but intrasystem each association all is initialised, and can't return to the duty before the collapse.For the respirator that must adjust operational factor the moment according to the patient's breath situation, this situation allows to take place anything but.
So; In order to make the control system of respirator after deadlock resets, can return to duty before as early as possible; Must artificial control system be monitored; In case find that data are initialised, just rapidly each present parameter is inputed in the system, thereby reduce as far as possible because the influence that system resets and caused.But no matter how timely manual monitoring has, and all can waste self check and the input of parameter of plenty of time when being used to reset, thereby can't absolutely guarantee patient's life safety.
Summary of the invention
When one of the object of the invention is to provide a kind of can resetting owing to accident at work, restore the system to the control method that is used for respirator of the duty before resetting automatically.
For realizing the foregoing invention purpose, the present invention has taked following technical scheme:
A kind of control method that is used for respirator, said respirator comprise ancillary equipment and the control system that is used to control said ancillary equipment, and said control system possesses first single-chip microcomputer, second singlechip and is arranged on the memorizer in the said second singlechip.Said control method may further comprise the steps:
A, said first single-chip microcomputer are initiated communicating requirement to said second singlechip; And then communicate with said second singlechip; And send at least a operational factor to said second singlechip through said communication; This operational factor is relevant with the running status of said first single-chip microcomputer when initiating said communicating requirement, and in normal operation, the interval that said first single-chip microcomputer is initiated between any twice adjacent said communicating requirement is no more than a predefined value;
B, said second singlechip communicate with said first single-chip microcomputer, thereby receive said operational factor, and said operational factor is stored in the said memorizer after receiving said communicating requirement;
C, said second singlechip are also monitored said interval and whether are surpassed said predefined value, when said interval surpasses said predetermined value, send a reset signal to said first single-chip microcomputer;
D, said first single-chip microcomputer reset after receiving said reset signal, send a foldback requirement that requires said second singlechip foldback to return said operational factor to said second singlechip then;
E, said second singlechip return the said operational factor foldback that is stored in the said memorizer to said first single-chip microcomputer after receiving said foldback requirement;
F, said first single-chip microcomputer are according to said operating parameter setting running status.
Further, said memorizer is RAM.The start flow process of said second singlechip comprises a step with the data initialization in the said RAM.Said step f comprises whether a said operational factor of judging that foldback returns is the step of init state, when being judged as init state, the running status of said first single-chip microcomputer is set at startup self-detection; When being judged as non-init state, the running status of said first single-chip microcomputer is set at and the corresponding running status of said operational factor.
Further, said memorizer is EEPROM.The shutdown process of said second singlechip comprises a step with the data initialization in the said EEPROM.Said step f comprises whether a said operational factor of judging that foldback returns is the step of init state, when being judged as init state, the running status of said first single-chip microcomputer is set at startup self-detection; When being judged as non-init state, the running status of said first single-chip microcomputer is set at and the corresponding running status of said operational factor.
Further, said second singlechip is initiated the feedback communication requirement to said second singlechip after accomplishing said step b, and then carries out feedback communication with said first single-chip microcomputer, and sends feedback data through said feedback communication to said first single-chip microcomputer.
Further, said predefined value is 0.5～3 second.
Another object of the present invention is to provide a kind of control system that is suitable for above-mentioned control method.
For realizing the foregoing invention purpose, the present invention has taked following technical scheme:
A kind of control system that is used for respirator possesses: first single-chip microcomputer and second singlechip.Wherein, Said first single-chip microcomputer comprises: communication module; Be used for communicating to said second singlechip initiation communicating requirement and then with said second singlechip; And send at least a operational factor to said second singlechip through said communication, said operational factor is relevant with the running status of said first single-chip microcomputer when initiating said communicating requirement; Timing module is used to control the interval of initiating between any twice adjacent said communicating requirement and is no more than a predefined value; And setting state module; Be used for after said control system resets; Send a foldback requirement that requires said second singlechip foldback to return said operational factor to said second singlechip; And after receiving the said operational factor that foldback returns, according to the running status of said first single-chip microcomputer of said operating parameter setting.Said second singlechip comprises: memory module, be used for after receiving said communicating requirement, and communicate with said first single-chip microcomputer, thereby receive and store said operational factor; Monitoring module is used to monitor said interval and whether surpasses said predefined value, and when said interval surpasses said predetermined value, thereby make said first single-chip microcomputer reset to reset signal of said first single-chip microcomputer transmission; And the foldback module, be used for when receiving said foldback requirement, from said memory module, reading said operational factor, and said operational factor foldback being returned said first single-chip microcomputer.
Further, said memory module comprises the RAM that is used to store said operational factor.Said setting state module comprises: judge module is used to judge whether the said operational factor that foldback returns is init state; Selftest module when said operational factor is init state, carries out self check to said first single-chip microcomputer; And the recovery module, when said operational factor is not init state, the running status of said first single-chip microcomputer is returned to and the corresponding running status of said operational factor.
Further, said memory module comprises: the EEPROM that is used to store said operational factor; And initialization module, be used for when carrying out the normal shutdown flow process of said second singlechip, the data initialization of said EEPROM.Said setting state module comprises: judge module is used to judge whether the said operational factor that foldback returns is init state; Selftest module when said operational factor is init state, carries out self check to said first single-chip microcomputer; And the recovery module, when said operational factor is not init state, the running status of said first single-chip microcomputer is returned to and the corresponding running status of said operational factor.
Further, on the port of said second singlechip, being connected with ancillary equipment, said ancillary equipment comprises: pick off is used to receive the signal relevant with patient's breath; And input equipment, be used to supply the operator to import instruction.Said second singlechip also comprises feedback module; Be used for after said communication is accomplished; Initiate the feedback communication requirement and then carry out feedback communication to said first single-chip microcomputer, and send feedback data to said first single-chip microcomputer through said feedback communication with said first single-chip microcomputer.Said feedback data comprises said signal and said instruction.
Further, said first single-chip microcomputer is the ARM single-chip microcomputer, said second singlechip is the PIC single-chip microcomputer.
Because the employing of above-mentioned each technical scheme, the present invention possesses following advantage:
Second singlechip is equivalent to the house dog of first single-chip microcomputer; It is when whether monitoring first single-chip microcomputer is in normal operating conditions; Also receive and store the operational factor of first single-chip microcomputer in real time; After first single-chip microcomputer resets owing to system exception, the operational factor that stores is sent back to first single-chip microcomputer then, thereby make the normal operating conditions before the first monolithic function is recovered to reset as early as possible.Like this, first single-chip microcomputer need not to carry out self check and initialization step when resetting, and has practiced thrift the plenty of time, has guaranteed the stability and the persistence of work.And even first single-chip microcomputer resets at work, its intrasystem operational factor also can return to the state before resetting, rather than is initialised, collateral security the continuity of work, guaranteed patient's life safety.
Description of drawings
Fig. 1 is the module map of the control system that is used for respirator of embodiment 1;
Fig. 2 is the workflow diagram of the control system that is used for respirator of embodiment 1;
Fig. 3 is the module map of the control system that is used for respirator of embodiment 2;
Fig. 4 is the workflow diagram of the control system that is used for respirator of embodiment 2;
Wherein: 10, ARM single-chip microcomputer; 11, communication module; 12, timing module; 13, setting state module; 14, judge module; 15, selftest module; 16, recover module; 20, PIC single-chip microcomputer; 21, memory module; 22, monitoring module; 23, foldback module; 24, feedback module; 25, internal RAM; 25 ', EEPROM; 26, initialization module; 30, data buffer zone; 31, communicating requirement; 32, reset signal; 50, keyboard; 51, pick off; 52, adc section; 53, bus; 54, external RAM; 55, external ROM; 56, display driver; 57, Data Flash; 58, expansion input port; 59, expansion delivery outlet; 100,100 ', control system.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described further.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
Embodiment 1:
Accompanying drawing 1 is the module map of the control system that is used for respirator 100 of embodiment 1.
Shown in accompanying drawing 1, this control system 100 comprises ARM single-chip microcomputer 10, PIC single-chip microcomputer 20 and a data relief area 30.
ARM single-chip microcomputer 1 is the system of 32 RISC framework, and the speed of service is high, and data-handling capacity is strong, and outside extended capability is also very strong, so it is as host CPU in this control system 100, is responsible for handling the incident of most complicacy.On ARM single-chip microcomputer 10, hang with external RAM 54, external ROM 55, display driver 56, Data Flash 57, expand ancillary equipment such as input port 58 and expansion input port 59 through bus 53.
PIC single-chip microcomputer 20 is single-chip microcomputers of 8, and its speed of service is relatively slow, so be as subordinate CPU in system, is responsible for handling the simple event of fraction, monitors the ruuning situation of ARM single-chip microcomputer 10 simultaneously.On the port of PIC single-chip microcomputer 20, directly hang with keyboard 50 and pick off 51; The effect of keyboard 50 is to supply doctor's input operation instruction; The operation of control breathing machine; The effect of pick off 51 is to receive the signal relevant with patient's breath, and is digital signal through an adc section 52 with analog-signal transitions, imports in the PIC single-chip microcomputer 20 and handles.
Because ARM single-chip microcomputer 10 is systems of 3.3V; The ancillary equipment of on its bus 53, hanging is many; And program is externally to move among the ROM 55, and data also are to be stored in the external RAM 54, so the capacity of resisting disturbance of ARM single-chip microcomputer 10 is poor; Just be easy to cause program fleet (promptly crashing) in case be interfered on the bus 53, and then cause system crash.
Under comparing, PIC single-chip microcomputer 20 is systems of 5V, and ROM and RAM are built-in, and ancillary equipment is few, and the port driver ability of PIC single-chip microcomputer 20 is strong, so its capacity of resisting disturbance is higher than ARM single-chip microcomputer 10 far away.Experiment showed, and promptly use a powerful electronic equipment of ability abrupt release, such as high frequency electric knife, near the circuit part of PIC single-chip microcomputer 20, carry out the operation that electric knife is cut or coagulated then, make its abrupt release high-power, PIC single-chip microcomputer 20 still can not crash.And on ARM single-chip microcomputer 10, implement identical experiment, find that the probability of ARM single-chip microcomputer 10 deadlocks is very high.
ARM single-chip microcomputer 10 possesses communication module 11, timing module 12 and setting state module 13 and constitutes, and PIC single-chip microcomputer 20 possesses memory module 21, monitoring module 22, foldback module 23 and feedback module 24.
During operate as normal, the communication module 11 of ARM single-chip microcomputer 10 is sent communicating requirement 31 to PIC single-chip microcomputer 20, and carries out exchanges data with it, and the operational factor relevant with present running status sent to PIC single-chip microcomputer 20.
The memory module 21 of PIC single-chip microcomputer 20 receives the operational factor that is sended over by ARM single-chip microcomputer 10, and it is deposited in the built-in internal RAM 25.Because the data power down in the RAM is promptly lost, so the data in the internal RAM 25 will be initialised when 20 starts of PIC single-chip microcomputer automatically.
The process of whole communication is carried out through data buffer zone 30.Specifically, ARM single-chip microcomputer 10 deposits operational factor in the data buffer zone 30 in earlier, sends communicating requirement 31 to PIC single-chip microcomputer 20 then.PIC single-chip microcomputer 20 reads out operational factor in data buffer zone 30 after receiving communicating requirement 31, and it is dumped in the internal RAM 25.
The effect of timing module 12 is frequencies of the above-mentioned communication of control, makes that the interval between twice communication is not more than a predefined value, and in the present embodiment, this value is 1 second.
Whether the above-mentioned communication of monitoring module 22 monitoring of PIC single-chip microcomputer 20 is carried out with the frequency of expection.If in 1 second, received communicating requirement next time, just think that ARM single-chip microcomputer 2 is in normal operating conditions.And all do not initiate communicating requirement next time in case surpass 1 second ARM single-chip microcomputer 10, just judge that ARM single-chip microcomputer 10 crashes, so send a reset signal 32 to it, makes ARM single-chip microcomputer 10 reset.
PIC single-chip microcomputer 20 also comprises a feedback module 24, and the effect of this feedback module 24 is after accomplishing the communication of being initiated by ARM single-chip microcomputer 10, initiates a feedback communication to ARM single-chip microcomputer 10.The process of this feedback communication is following: feedback module 24 feeds back to needs the data of ARM single-chip microcomputer 10; Such as the instruction of doctor through keyboard 50 inputs; And the signal that receives of pick off 51 etc., deposit data buffer zone 30 in, send a feedback communication to ARM single-chip microcomputer 10 again to require 31; ARM single-chip microcomputer 10 reads data from data buffer zone 30 after receiving this feedback communication requirement 31.
The setting state module 13 of ARM single-chip microcomputer 10 possesses judge module 14, selftest module 15 and recovers module 16 formations.After resetting, setting state module 13 at first can be sent one to PIC single-chip microcomputer 20 and required signal, requires PIC single-chip microcomputer 20 to be provided at the preceding operational factor in the past of sending of deadlock.After obtaining these operational factors from PIC single-chip microcomputer 20, judge module 14 will judge that these operational factors are init states, or duty.If init state then is judged as electrification reset, start selftest module 15, carry out the self check flow process; If duty, judge then to crash in the position to reset, start and recover module 16, according to above-mentioned operational factor with the running status of ARM single-chip microcomputer 10 return to crash before identical, thereby can continue carry out work.Recover this process of running status originally from crashing to, the time is no more than 2 seconds, almost is inappreciable to the influence that patient's breath produced.
In sum,, can crash hardly,, can improve the stability of The whole control system 100 so adopt PIC single-chip microcomputer 20 to be used as the house dog of ARM single-chip microcomputer 10 because the capacity of resisting disturbance of PIC single-chip microcomputer 20 is strong.
Accompanying drawing 2 is the workflow diagram of the control system 100 that is used for respirator of embodiment 1.
Shown in accompanying drawing 2, after the respirator start, the system initialization of PIC single-chip microcomputer 20, this initialization step comprise the data of its internal RAM 25 are carried out initialization (step 1).
Then, PIC single-chip microcomputer 20 sends reset signal 32 (step 2) to ARM single-chip microcomputer 10.ARM single-chip microcomputer 10 resets after receiving reset signal 32, and (step 3) brings into operation.
ARM single-chip microcomputer 10 at first sends one to PIC single-chip microcomputer 20 and requires signal after bringing into operation, and requires it that state parameter (step 4) is provided.
PIC single-chip microcomputer 20 receives the signal that requires that ARM single-chip microcomputer 10 sent, and the state parameters that are stored in the internal RAM 25 are sent to ARM single-chip microcomputer 10 (step 5) through data buffer zone 30.
As previously mentioned, the data of internal RAM 25 might be initialised, and ARM single-chip microcomputer 10 at first will be judged the character (step 6) of this state parameter after receiving state parameter.If this state parameter is under the duty, then ARM single-chip microcomputer 10 returns to and the corresponding duty (step 12) of this state parameter according to this state parameter; If this state parameter is an init state, then ARM single-chip microcomputer 10 gets into the electrification reset pattern, carries out startup self-detection, gets into duty (step 7) then.
After getting into duty, ARM single-chip microcomputer 10 is sent to data buffer zone 30 with state parameter in real time, and initiates communicating requirements 31 to PIC single-chip microcomputer 20, and in the present embodiment, the interval of initiating between the communicating requirement for twice is configured to less than 1 second (step 8).
The monitoring module 22 of PIC single-chip microcomputer 20 is judged the interval overtime (step 9) whether between twice communication.
As indicated above; In the present embodiment, the interval between twice communicating requirement was configured to 1 second, did not also receive communicating requirement next time if surpass 1 second; Then overtime; Think that (step 15), PIC single-chip microcomputer 20 will return step 2 to 10 deadlocks of ARM single-chip microcomputer, just send a reset signal to ARM single-chip microcomputer 10.
If also surpass 1 second apart from last time communication, then not overtime, PIC single-chip microcomputer 20 will judge whether to receive communicating requirement 31 from PIC single-chip microcomputer 20, and (step 10) if also do not receive communicating requirement 31, then continues timing, returns step 9.
If in step 10, be judged as the communicating requirement 31 that has received from ARM single-chip microcomputer 10; Then timing zero clearing; PIC single-chip microcomputer 20 reads the state parameter from ARM single-chip microcomputer 10 from data buffer zone 30, and this state parameter is temporarily stored into internal RAM 25 (step 11).
After accomplishing the communication of being initiated by ARM single-chip microcomputer 10, PIC single-chip microcomputer 20 also will be initiated a feedback communication (step 13) to ARM single-chip microcomputer 10 through feedback module 24.
After feedback communication is accomplished, PIC single-chip microcomputer 20 will judge whether to receive shutdown command (step 14).If do not receive shutdown command, then return step 8.If receive shutdown command, then control system 100 shutdown, flow process finishes.
Pass through above-mentioned steps; PIC single-chip microcomputer 20 can not only in time be given and reset signal 32 when ARM single-chip microcomputer 10 crashes; But also can tell that ARM single-chip microcomputer 10 is the deadlocks that under what state, take place, thereby can make it after resetting, return to original duty rapidly.Such as, if respirator is ventilated to patient before crashing, will continue after resetting so to be provided with to patient ventilating according to original parameter.Simultaneously, ARM single-chip microcomputer 10 can also judge that belonging to electrification reset still is to crash to reset according to the character of the state parameter that receives from PIC single-chip microcomputer 20.If electrification reset then carries out steps such as self check according to the normal boot-strap flow process, and then get into duty.
Embodiment 2:
In preamble, though proved that through experiment on behalf of PIC single-chip microcomputer 20, PIC single-chip microcomputer 20 can or not crash scarcely owing to external interference crashes hardly.Just in case PIC single-chip microcomputer 20 crashes, then in an embodiment, owing to be to adopt RAM to be used as memorizer, and the data power down that is stored among the RAM is promptly lost, these data all can be initialised when each PIC single-chip microcomputer 20 resetted.Therefore, just in case PIC single-chip microcomputer 20 also resets owing to crashing,, not only need carry out startup self-detection, and can't return to the duty before resetting then will cause ARM single-chip microcomputer 10 also to get into the electrification reset pattern thereupon.
For further addressing the above problem; Shown in accompanying drawing 3; In the control system 100 ' of embodiment 2, change the memorizer in the memory module 21 into EEPROM 25 ' by internal RAM 25, i.e. EEPROM; And set up initialization module 26, be used for EEPROM 25 ' being carried out initialization in the normal shutdown flow process.Like this, even exist the unexpected power down of data among the EEPROM 25 ' also can not disappear.
Accompanying drawing 4 is the workflow diagram of the control system 100 ' that is used for respirator of embodiment 2.
After the start, PIC single-chip microcomputer 20 brings into operation, and system initialization, but the data in the EEPROM 25 ' can't be initialised still remains on the state (step 1) before control system 100 ' the last outage.
Thereafter flow process, basic identical from step 2 to step 15 with embodiment 1, the multiple description in Therefore, omited.Unique difference only is: in the step 11, PIC single-chip microcomputer 20 deposits the state parameter that receives in EEPROM 25 ', but not the internal RAM 25 among the embodiment 1.
At last, when PIC single-chip microcomputer 20 receives shutdown command, can carry out the normal shutdown flow process, this flow process comprises one by the step (step 16) of initialization module 26 with the data initialization in the EEPROM 25 ', and all flow processs just finish then.
Unexpectedly if PIC single-chip microcomputer 20 is crash and reset, owing to do not receive shutdown command, with can not carrying out last initialization step 16, thereby make the state parameter that still stores ARM single-chip microcomputer 10 received before resetting in the EEPROM 25 '.So, after PIC single-chip microcomputer 20 resetted, ARM single-chip microcomputer 10 also resetted thereupon, and can receive state parameter stored before resetting, thereby the state before making ARM single-chip microcomputer 10 and PIC single-chip microcomputer 20 to return to reset works on.
Through adopting EEPROM 25 ' as memorizer, just can further avoid because the influence that 20 deadlocks of PIC single-chip microcomputer reset and cause, further improved the reliability of control system 100 '.
Claims (10)
1. control method that is used for respirator; Said respirator comprises ancillary equipment and the control system that is used to control said ancillary equipment; It is characterized in that: said control system possesses first single-chip microcomputer (10), second singlechip (20) and is arranged on the memorizer (25) in the said second singlechip
Said control method may further comprise the steps:
A, said first single-chip microcomputer (10) are initiated communicating requirement to said second singlechip (20); And then communicate with said second singlechip (20); And send at least a operational factor to said second singlechip (20) through said communication; This operational factor is relevant with the running status of said first single-chip microcomputer (10) when initiating said communicating requirement; In normal operation, the interval between any twice adjacent said communicating requirement of said first single-chip microcomputer (10) initiation is no more than a predefined value;
B, said second singlechip (20) communicate with said first single-chip microcomputer (10), thereby receive said operational factor after receiving said communicating requirement, and said operational factor is stored in the said memorizer (25);
C, said second singlechip (20) are also monitored said interval and whether are surpassed said predefined value, when said interval surpasses said predefined value, to said first single-chip microcomputer (a 10) transmission reset signal (32);
D, said first single-chip microcomputer (10) reset after receiving said reset signal (32), send a foldback requirement that requires said second singlechip (20) foldback to return said operational factor to said second singlechip (20) then;
E, said second singlechip (20) will be stored in that the said operational factor foldback of (25) returns said first single-chip microcomputer (10) in the said memorizer after receiving said foldback requirement;
F, said first single-chip microcomputer (10) are according to the operating parameter setting running status of returning from said second singlechip (20).
2. the control method that is used for respirator according to claim 1 is characterized in that:
Said memorizer (25) is RAM,
The start flow process of said second singlechip (20) comprises a step with the data initialization in the said RAM,
Said step f comprises whether a said operational factor of judging that foldback returns is the step of init state, when being judged as init state, the running status of said first single-chip microcomputer (10) is set at startup self-detection; When being judged as non-init state, the running status of said first single-chip microcomputer (10) is set at and the corresponding running status of said operational factor.
3. the control method that is used for respirator according to claim 1 is characterized in that:
Said memorizer (25) is EEPROM,
The shutdown process of said second singlechip (20) comprises a step with the data initialization in the said EEPROM,
Said step f comprises whether a said operational factor of judging that foldback returns is the step of init state, when being judged as init state, the running status of said first single-chip microcomputer (10) is set at startup self-detection; When being judged as non-init state, the running status of said first single-chip microcomputer (10) is set at and the corresponding running status of said operational factor.
4. the control method that is used for respirator according to claim 1; It is characterized in that: said second singlechip (20) is after accomplishing said step b; Initiate the feedback communication requirement to said second singlechip (20); And then carry out feedback communication, and send feedback data to said first single-chip microcomputer (10) through said feedback communication with said first single-chip microcomputer (10).
5. according to any described control method that is used for respirator of claim 1～4, it is characterized in that: said predefined value is 0.5～3 second.
6. control system that is used for respirator is characterized in that possessing: first single-chip microcomputer (10) and second singlechip (20), wherein,
Said first single-chip microcomputer (10) comprising:
Communication module (11); Be used for communicating to said second singlechip (20) initiation communicating requirement and then with said second singlechip (20); And send at least a operational factor to said second singlechip (20) through said communication, said operational factor is relevant with the running status of said first single-chip microcomputer (10) when initiating said communicating requirement;
Timing module (12) is used to control the interval of initiating between any twice adjacent said communicating requirement and is no more than a predefined value; And
Setting state module (13); Be used for after said control system resets; Send a foldback requirement that requires said second singlechip (20) foldback to return said operational factor to said second singlechip (20); And after receiving the said operational factor that foldback returns, according to the running status of said first single-chip microcomputer of said operating parameter setting (10)
Said second singlechip (20) comprising:
Memory module (21) is used for after receiving said communicating requirement, communicates with said first single-chip microcomputer (10), thereby receives and store said operational factor;
Monitoring module (22); Be used to monitor said interval and whether surpass said predefined value; And when said interval surpasses said predefined value, to said first single-chip microcomputer (a 10) transmission reset signal (32) thus make said first single-chip microcomputer (10) reset; And
Foldback module (23) is used for when receiving said foldback requirement, from said memory module, reading said operational factor, and said operational factor foldback being returned said first single-chip microcomputer (10).
7. the control system that is used for respirator according to claim 6 is characterized in that:
Said memory module comprises the RAM (25) that is used to store said operational factor,
Said setting state module (13) comprising:
Judge module (14) is used to judge whether the said operational factor that foldback returns is init state;
Selftest module (15) when said operational factor is init state, carries out self check to said first single-chip microcomputer (10); And
Recover module (16), when said operational factor is not init state, the corresponding running status of operational factor that running status that will said first single-chip microcomputer (10) returns to and returns from said second singlechip (20).
8. the control system that is used for respirator according to claim 6 is characterized in that:
Said memory module comprises:
Be used to store the EEPROM (25 ') of said operational factor; And
Initialization module (26) is used for when carrying out the normal shutdown flow process of said second singlechip (20), with the data initialization of said EEPROM,
Said setting state module (13) comprising:
Judge module (14) is used to judge whether the said operational factor that foldback returns is init state;
Selftest module (15) when said operational factor is init state, carries out self check to said first single-chip microcomputer (10); And
Recover module (16), when said operational factor is not init state, the corresponding running status of operational factor that running status that will said first single-chip microcomputer (10) returns to and returns from said second singlechip (20).。
9. the control system that is used for respirator according to claim 6 is characterized in that:
On the port of said second singlechip (20), be connected with ancillary equipment, said ancillary equipment comprises:
Pick off (51) is used to receive the signal relevant with patient's breath; And
Input equipment (50) is used to supply the operator to import instruction,
Said second singlechip (20) also comprises feedback module (24); Be used for after said communication is accomplished; Initiate the feedback communication requirement and then carry out feedback communication to said first single-chip microcomputer (10) with said first single-chip microcomputer (10); And send feedback data to said first single-chip microcomputer (10) through said feedback communication, said feedback data comprises said signal relevant with patient's breath and said instruction.
10. according to each described control system that is used for respirator in the claim 6～9, it is characterized in that: said first single-chip microcomputer (10) is the ARM single-chip microcomputer, and said second singlechip (20) is the PIC single-chip microcomputer.
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| CN102266621B (en) * | 2010-12-31 | 2014-07-30 | 北京谊安医疗系统股份有限公司 | Data acquisition equipment of anesthesia machine, status detection method thereof and anesthesia machine |
| CN103893867B (en) * | 2012-12-27 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | A kind of fault alarm method of respirator |
| CN105700419B (en) * | 2014-11-28 | 2018-08-10 | 上海汽车集团股份有限公司 | Control method, device and the control method of finished of entire car controller, system |
| CN107484078A (en) * | 2017-09-29 | 2017-12-15 | 奇瑞汽车股份有限公司 | Car audio system and its startup control method |
| CN111845376A (en) * | 2020-07-14 | 2020-10-30 | 上海元城汽车技术有限公司 | Reset control method, device, equipment and storage medium |
| CN114488895B (en) * | 2022-01-24 | 2024-03-29 | 郑州大学第三附属医院(河南省妇幼保健院) | Portable pelvic cavity treatment equipment and system |
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