CN116764094A - Safety control method for electric shock dual-redundancy host - Google Patents
Safety control method for electric shock dual-redundancy host Download PDFInfo
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- CN116764094A CN116764094A CN202310851053.3A CN202310851053A CN116764094A CN 116764094 A CN116764094 A CN 116764094A CN 202310851053 A CN202310851053 A CN 202310851053A CN 116764094 A CN116764094 A CN 116764094A
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000004891 communication Methods 0.000 claims description 12
- 230000009977 dual effect Effects 0.000 claims description 10
- 230000006378 damage Effects 0.000 claims description 7
- 238000012790 confirmation Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 210000004556 brain Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010026749 Mania Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/36025—External stimulators, e.g. with patch electrodes for treating a mental or cerebral condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
- A61N1/36031—Control systems using physiological parameters for adjustment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
- A61N1/36034—Control systems specified by the stimulation parameters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
Compared with the single-machine mode control method of the traditional electric shock stimulator, when any one of the first host and the second host fails, the failure can be detected quickly through the other, the output of the electric shock stimulator can be stopped in time, and the safety of a patient is ensured. The invention adopts the fault judging method combining hardware and software, can rapidly identify the invalid disconnection state of the first host or the second host, and timely stops the output of the electric shock stimulator, thereby ensuring the real-time performance of fault detection. The invention adopts two software fault judging methods of soft watchdog and life state message, can identify whether the first host or the second host is on line or not and in normal working state from different dimensions, and further ensures the reliability of controlling the electric shock stimulator.
Description
Technical Field
The invention belongs to the technical field of output signal control, and particularly relates to a design of an electric shock dual-redundancy host safety control method.
Background
The electric shock stimulator is used for treating manic psychosis and has the principle of stimulating brain with electric current to calm patient. At present, the traditional electric shock stimulator adopts a single-machine mode control, and if hardware damage or software downtime exists in the output process, the output can be out of control. Because the amplitude of the brain electricity is not more than 200 mu V in the resting state of the human body, the output voltage of the electric shock stimulator can reach about 450V at the highest in the treatment process, and meanwhile, the discharge position of the electric shock stimulator is near the brain of the human body, and the current directly enters the brain through the skull, so that if the electric shock stimulator fails in the output process, the output is uncontrolled and can cause irreversible injury to the patient. Aiming at the risks existing in the conventional electric shock stimulator, a new control mode is urgently needed to realize safe output and protect patients from injury.
Disclosure of Invention
The invention aims to solve the problem that the single mode control method of the traditional electric shock stimulator is easy to cause uncontrolled output and further cause damage to patients, and provides an electric shock double-redundancy host safety control method.
The technical scheme of the invention is as follows: a safe control method of an electric shock dual-redundancy host comprises the following steps:
s1, constructing a dual-redundancy host for controlling the electric shock stimulator through a first host and a second host, and simultaneously receiving input signal data.
S2, judging whether the data received by the first host and the second host are consistent, if yes, entering a step S3, otherwise, controlling the dual-redundancy host to enter an output closing state, and ending the control flow.
S3, setting the IO pin of the first host machine/the second host machine high, detecting whether the IO pin of the second host machine/the first host machine is high or not, if so, entering a step S4, otherwise, canceling the output of the dual-redundancy host machine, informing a user through a display screen, and ending the control flow.
S4, manually pressing a confirmation button for a long time, controlling the first host and the second host to be in output states, and controlling the electric shock stimulator to start working.
S5, setting output countdown, dynamically judging whether the first host and the second host are in a normal output state before the output countdown is finished, confirming whether the button is in a manual long-press state, if so, entering a step S6, otherwise, stopping the output of the dual-redundancy host, controlling the electric shock stimulator to stop working, and ending the control flow.
And S6, controlling the dual redundant host to continuously output until the output countdown is finished, and ending the control flow.
Further, the first host and the second host are computers or MCUs with the same structure.
Further, the specific method for constructing the dual redundant host computer for controlling the electric shock stimulator in the step S1 is as follows: and connecting the IO pin of the first host with the IO pin of the second host, and connecting the communication interface of the first host with the communication interface of the second host to construct a dual-redundancy host for controlling the electric shock stimulator.
Further, in step S5, it is determined whether the first host and the second host are both in the normal output state by the hardware failure determination method and the software failure determination method.
Further, the hardware fault judging method specifically comprises the following steps: and setting IO pins of the first host and the second host to be in a weak pull-down state, respectively setting the IO pins to be in a high position, when the first host or the second host has hardware faults, pulling the IO pins of the first host or the second host to be in a low position through a pull-down resistor, and when the IO pins of the first host or the second host are identified to be in a low state, judging that the first host and the second host are not in a normal output state.
Further, hardware faults include electrostatic damage, overvoltage, and overcurrent.
Further, the software fault judging method comprises a soft watchdog judging method and a life state message judging method.
Further, the soft watchdog judging method specifically comprises the following steps: and starting soft watchdog in the first host and the second host, setting the watchdog feeding period to be 5ms, enabling the soft watchdog to act for 10ms, enabling the soft watchdog to act if the soft watchdog is not fed for more than 10ms, and judging that the first host and the second host are not in a normal output state when the soft watchdog of the first host or the second host is identified.
Further, the life state message judging method comprises the following steps:
a1, periodically sending a life state message to the communication interface of the second host/the first host through the communication interface of the first host/the second host.
A2, analyzing the received life state messages in the first host and the second host respectively to obtain life state values.
A3, taking the life state value as a life analysis value of the current period, and taking the life state value +1 as a life expected value of the next period.
And A4, judging whether the life analysis value and the life expected value of each period are equal, and judging that the first host computer and the second host computer are not in a normal output state when the life analysis value and the life expected value in the first host computer or the second host computer in a certain period are not equal.
Further, the life state message judging method further comprises the following steps:
a5, if the first host computer/the second host computer exceeds the preset period, the life state message sent by the second host computer/the first host computer is not received, and the first host computer and the second host computer are not in the normal output state.
The beneficial effects of the invention are as follows:
(1) Compared with the single mode control method of the traditional electric shock stimulator, when any one of the first host and the second host fails, the invention can quickly detect the failure through the other and timely stop the output of the electric shock stimulator, thereby ensuring the safety of patients.
(2) The invention adopts the fault judging method combining hardware and software, can rapidly identify the invalid disconnection state of the first host or the second host, and timely stops the output of the electric shock stimulator, thereby ensuring the real-time performance of fault detection.
(3) The invention adopts two software fault judging methods of soft watchdog and life state message, can identify whether the first host or the second host is on line or not and in normal working state from different dimensions, and further ensures the reliability of controlling the electric shock stimulator.
Drawings
FIG. 1 is a flowchart of a method for controlling security of an electric shock dual-redundancy host according to an embodiment of the present invention.
Fig. 2 is a block diagram of a dual redundancy host according to an embodiment of the present invention.
Fig. 3 is a flowchart of a method for judging a life status message according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It is to be understood that the embodiments shown and described in the drawings are merely illustrative of the principles and spirit of the invention and are not intended to limit the scope of the invention.
The embodiment of the invention provides a safe control method of an electric shock dual-redundancy host, as shown in fig. 1, comprising the following steps S1-S6:
s1, constructing a dual-redundancy host for controlling the electric shock stimulator through a first host and a second host, and simultaneously receiving input signal data.
In the embodiment of the invention, the first host and the second host are computers or MCUs with the same structure. As shown in fig. 2, the IO pin of the first host and the IO pin of the second host are connected to each other, and the communication interface of the first host and the communication interface of the second host are connected to each other, so as to construct a dual redundancy host for controlling the electric shock stimulator.
In the embodiment of the invention, the input signal data is the output treatment time of the electric shock stimulator set by the user.
S2, judging whether the data received by the first host and the second host are consistent, if yes, entering a step S3, otherwise, controlling the dual-redundancy host to enter an output closing state, and ending the control flow.
In the embodiment of the invention, if the data received by the first host and the second host are inconsistent, it is described that the dual redundancy host does not know which one of the output treatment time treatment schemes is executed, so that an error execution state occurs.
S3, setting the IO pin of the first host machine/the second host machine high, detecting whether the IO pin of the second host machine/the first host machine is high or not, if so, entering a step S4, otherwise, canceling the output of the dual-redundancy host machine, informing a user through a display screen, and ending the control flow.
In the embodiment of the invention, when the IO pins of the first host and the second host are high, the first host and the second host are ready for outputting.
S4, manually pressing a confirmation button for a long time, controlling the first host and the second host to be in output states, and controlling the electric shock stimulator to start working.
In the embodiment of the invention, the output of the first host and the second host is a control signal for controlling the work of the electric shock stimulator.
S5, setting output countdown, dynamically judging whether the first host and the second host are in a normal output state before the output countdown is finished, confirming whether the button is in a manual long-press state, if so, entering a step S6, otherwise, stopping the output of the dual-redundancy host, controlling the electric shock stimulator to stop working, and ending the control flow.
In the embodiment of the invention, whether the first host and the second host are in a normal output state is judged by a hardware fault judging method and a software fault judging method.
In the embodiment of the invention, the hardware fault judging method specifically comprises the following steps: and the IO pins of the first host and the second host are set to be in a weak pull-down state and respectively set to be in a high position, when the first host or the second host has hardware faults (such as electrostatic damage, overvoltage, overcurrent and the like), the IO pins of the first host or the second host are pulled down to be in a low position through pull-down resistors, and when the IO pins of the first host or the second host are identified to be in a low state, the first host and the second host are judged not to be in a normal output state.
In the embodiment of the invention, the software fault judging method comprises a soft watchdog judging method and a life state message judging method.
The soft watchdog judging method specifically comprises the following steps: and starting soft watchdog in the first host and the second host, setting a watchdog feeding period (i.e. a period for resetting the counter) to be 5ms, wherein the soft watchdog action time is 10ms, if the soft watchdog action time exceeds 10ms, the soft watchdog action (i.e. the chip reset caused by overflow of the counter) is not carried out, and judging that the first host and the second host are not in a normal output state when the soft watchdog action of the first host or the second host is recognized.
As shown in fig. 3, the method for judging the life status message includes the following steps A1 to A5:
a1, periodically sending a life state message to the communication interface of the second host/the first host through the communication interface of the first host/the second host.
A2, analyzing the received life state messages in the first host and the second host respectively to obtain life state values.
A3, taking the life state value as a life analysis value of the current period, and taking the life state value +1 as a life expected value of the next period.
And A4, judging whether the life analysis value and the life expected value of each period are equal, and judging that the first host computer and the second host computer are not in a normal output state when the life analysis value and the life expected value in the first host computer or the second host computer in a certain period are not equal.
In the embodiment of the invention, assuming that the life state value obtained by analyzing the current period is 10, the life analysis value of the current period is 10, the life expected value of the next period is 11, if the life state value obtained by analyzing the next period is 11, it is indicated that the first host and the second host are both in the normal output state, and if the life state value obtained by analyzing the next period is not equal to 11, it is indicated that the first host or the second host has software failure and is not in the normal output state.
A5, if the first host/second host exceeds a preset period (in the embodiment of the invention, the time period of 3 life state messages) and does not receive the life state messages sent by the second host/first host, judging that the first host and the second host are not in a normal output state.
In the embodiment of the invention, to ensure that the dual-redundancy host is in a continuous output state, besides the first host and the second host are required to be in a normal output state, the output state is also required to be maintained by manually pressing the confirmation button for a long time, and when the dual-redundancy host is found to be faulty or a patient is not timely found by the manual work, the manual long-time pressing of the confirmation button is canceled, so that the output of the dual-redundancy host is stopped, and the electric shock stimulator is controlled to stop working, thereby further ensuring the safety of the patient.
And S6, controlling the dual redundant host to continuously output until the output countdown is finished, and ending the control flow.
Those of ordinary skill in the art will recognize that the embodiments described herein are for the purpose of aiding the reader in understanding the principles of the present invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit thereof, and such modifications and combinations remain within the scope of the present disclosure.
Claims (10)
1. The electric shock dual-redundancy host safety control method is characterized by comprising the following steps of:
s1, constructing a dual-redundancy host for controlling the electric shock stimulator through a first host and a second host, and simultaneously receiving input signal data;
s2, judging whether the data received by the first host and the second host are consistent, if so, entering a step S3, otherwise, controlling the dual-redundancy host to enter an output closing state, and ending the control flow;
s3, setting the IO pin of the first host machine/the second host machine high, detecting whether the IO pin of the second host machine/the first host machine is high or not, if so, entering a step S4, otherwise, canceling the output of the dual-redundancy host machine, informing a user through a display screen, and ending the control flow;
s4, manually pressing a confirmation button for a long time, controlling the first host and the second host to be in output states, and controlling the electric shock stimulator to start working;
s5, setting output countdown, dynamically judging whether the first host and the second host are in a normal output state before the output countdown is finished, confirming whether the button is in a manual long-press state, if so, entering a step S6, otherwise, stopping the output of the dual-redundancy host, controlling the electric shock stimulator to stop working, and ending the control flow;
and S6, controlling the dual redundant host to continuously output until the output countdown is finished, and ending the control flow.
2. The method of claim 1, wherein the first host and the second host are computers or MCUs with the same structure.
3. The method for controlling the safety of the electric shock dual-redundancy host according to claim 2, wherein the specific method for constructing the dual-redundancy host for controlling the electric shock stimulator in step S1 is as follows: and connecting the IO pin of the first host with the IO pin of the second host, and connecting the communication interface of the first host with the communication interface of the second host to construct a dual-redundancy host for controlling the electric shock stimulator.
4. The method according to claim 1, wherein in step S5, whether the first host and the second host are both in a normal output state is determined by a hardware failure determination method and a software failure determination method.
5. The method for controlling the safety of an electric shock dual-redundancy host according to claim 4, wherein the hardware failure judging method specifically comprises: and setting IO pins of the first host and the second host to be in a weak pull-down state, respectively setting the IO pins to be in a high position, when the first host or the second host has hardware faults, pulling the IO pins of the first host or the second host to be in a low position through a pull-down resistor, and when the IO pins of the first host or the second host are identified to be in a low state, judging that the first host and the second host are not in a normal output state.
6. The method of claim 5, wherein the hardware faults include electrostatic damage, overvoltage and overcurrent.
7. The method of claim 4, wherein the software fault determination method comprises a soft watchdog determination method and a life state message determination method.
8. The method for controlling the safety of an electrically shocked dual redundant host according to claim 7, wherein the soft watchdog judging method specifically comprises: and starting soft watchdog in the first host and the second host, setting the watchdog feeding period to be 5ms, enabling the soft watchdog to act for 10ms, enabling the soft watchdog to act if the soft watchdog is not fed for more than 10ms, and judging that the first host and the second host are not in a normal output state when the soft watchdog of the first host or the second host is identified.
9. The method for controlling the safety of an electrically shocked dual redundant host according to claim 7, wherein said life state message judgment method comprises the steps of:
a1, periodically sending a life state message to a communication interface of a second host/a first host through the communication interface of the first host/the second host;
a2, analyzing the received life state messages in the first host and the second host respectively to obtain life state values;
a3, taking the life state value as a life analysis value of the current period, and taking the life state value +1 as a life expected value of the next period;
and A4, judging whether the life analysis value and the life expected value of each period are equal, and judging that the first host computer and the second host computer are not in a normal output state when the life analysis value and the life expected value in the first host computer or the second host computer in a certain period are not equal.
10. The method for controlling the safety of an electrically shocked dual redundant host according to claim 9, wherein said life state message judgment method further comprises the steps of:
a5, if the first host computer/the second host computer exceeds the preset period, the life state message sent by the second host computer/the first host computer is not received, and the first host computer and the second host computer are not in the normal output state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310851053.3A CN116764094B (en) | 2023-07-11 | 2023-07-11 | Safety control method for electric shock dual-redundancy host |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310851053.3A CN116764094B (en) | 2023-07-11 | 2023-07-11 | Safety control method for electric shock dual-redundancy host |
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| CN116764094A true CN116764094A (en) | 2023-09-19 |
| CN116764094B CN116764094B (en) | 2023-12-22 |
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| US20160235994A1 (en) * | 2015-02-16 | 2016-08-18 | Hitomi Doi | Device for facilitating blood circulation by heat and electroshock and method using thereof |
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| CN114534099A (en) * | 2022-03-23 | 2022-05-27 | 武汉奥赛福医疗科技有限公司 | Control system of electric shock treatment equipment |
| CN114534100A (en) * | 2022-03-23 | 2022-05-27 | 武汉奥赛福医疗科技有限公司 | Electric shock treatment equipment |
| CN114558243A (en) * | 2022-04-01 | 2022-05-31 | 杭州范斯凯科技有限公司 | Wrist-worn nerve stimulator applicable to both left hand and right hand and use method thereof |
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| US20150358763A1 (en) * | 2002-12-23 | 2015-12-10 | Cardiac Pacemakers, Inc. | Method and apparatus for enabling data communication between an implantable medical device and a patient management system |
| US20080184066A1 (en) * | 2007-01-26 | 2008-07-31 | Rdc Semiconductor Co., Ltd. | Redundant system |
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| Publication number | Publication date |
|---|---|
| CN116764094B (en) | 2023-12-22 |
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