CN108646663B - Control method of radiation scale laboratory safety interlock clearing system - Google Patents
Control method of radiation scale laboratory safety interlock clearing system Download PDFInfo
- Publication number
- CN108646663B CN108646663B CN201810437621.4A CN201810437621A CN108646663B CN 108646663 B CN108646663 B CN 108646663B CN 201810437621 A CN201810437621 A CN 201810437621A CN 108646663 B CN108646663 B CN 108646663B
- Authority
- CN
- China
- Prior art keywords
- signal
- shielding door
- laboratory
- alarm lamp
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15039—Display of reference, set value, of measured, feedback value
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention relates to the technical field of nuclear radiation protection, and provides a control method of a safety interlock clearing system of a radiation scale laboratory, which comprises the following steps: the shielding door is controlled to adopt a setting and resetting mode after being opened by a signal and the clearing reminding alarm lamp; after the clear alarm lamp gives an audible and visual alarm, waiting for a period of time, and then closing the shielding door; after the shielding door is opened by a signal, the and logic of the clearing reminding alarm lamp signal and the shielding door closing signal is switched on, the shielding door is delayed for a period of time and then switched off, so that the problem of jitter of the shielding door closing signal is solved, and the shielding door opening signal is reset within the period of time; and when the shielding door closing signal is switched on and the shielding door is opened and is reset through the signal, the field cleaning is finished. The method can effectively solve the problem of the jitter of the closing signal of the shielding door and improve the reliability of the field clearing system.
Description
Technical Field
The invention relates to the technical field of nuclear radiation protection, in particular to a control method of a safety interlock clearing system of a radiation scale laboratory, which is used for reminding personnel to evacuate the scale laboratory.
Background
When the nuclear radiation calibration laboratory is used for calibration, a standard radiation field needs to be established by using a radioactive source, and the standard nuclear radiation field is used for calibrating the detector. During the course of the experiment, it is necessary to avoid the personnel being irradiated in the nuclear radiation field, so the personnel is reminded to leave the calibration laboratory before the radiation field is established to release the radiation. The safety interlocking cleaning system for the scale laboratory is used for reminding personnel to leave the scale laboratory immediately, so that the personnel are protected from being irradiated, and the experiment is smoothly carried out. In general, a screen door of a calibration laboratory has a buffer device, and a problem of screen door closing signal jitter may occur in the process of closing the door. Therefore, the system can misunderstand that the shielding door is opened after being closed, and personnel can enter the shielding door after being opened, and the shielding door needs to be cleared again, so that the problem of jitter of a shielding door closing signal must be solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the control method of the safety interlocking clearing system of the radiation scale laboratory, which can effectively solve the problem of jitter of a shielding door closing signal and improve the reliability of the clearing system.
The object of the invention is achieved by the following technical measures.
A control method of a safety interlocking field cleaning system of a radiation scale laboratory comprises a controller, a button arranged in the laboratory, a proximity switch and an alarm lamp, wherein the proximity switch and the alarm lamp are arranged on a shielding door of the laboratory, the button and the proximity switch are respectively connected with a digital quantity input end of the controller, a digital quantity output end of the controller is respectively connected with the alarm lamp and a shielding door control motor, and the control method of the controller comprises the following steps:
(1) if the shielding door is opened, the shielding door closing signal is turned on in an inverting way, and the shielding door opening signal is set;
(2) the laboratory staff enters the interior of the scale laboratory, presses the button, the clear reminding button is connected with the signal, the clear reminding alarm lamp signal is set, the acousto-optic alarm is started, and the laboratory staff is reminded to leave the scale laboratory;
(3) after the acousto-optic alarm Time t, the TON Time timer is switched on in a delayed mode, a shielding door closing instruction is given, and the shielding door is closed;
(4) after the shielding door is opened, a signal is switched on, a clear field reminding alarm lamp signal is switched on, a shielding door closing signal is switched on, and the AND logic of the three signals is delayed for Time T by a TOF Time timer and then switched off, and the shielding door is reset within the Time T and the signal is opened;
(5) after the shielding door is turned off and turned on simultaneously and the signal is turned off and turned on, the alarm lamp is reset to clear the field and a signal indicating that the laboratory is cleared is given.
In the technical scheme, the controller is a Siemens processor S7-CPU-1214C.
In the above technical solution, the value of the time t in the step (3) is 10 seconds.
In the above technical solution, the value of the time T in the step (4) is 1 second.
The invention provides a control method of a radiation scale laboratory safety interlock clearing system, which has the following characteristics compared with the prior art:
1. the shielding door is opened by a signal and the alarm lamp is reminded of clearing the field by setting and resetting.
2. After the clear alarm lamp gives an audible and visual alarm, the shielding door is closed after waiting for a period of time.
3. After the shielding door is opened, the AND logic of the clearing reminding alarm lamp signal and the shielding door closing signal is switched on, the shielding door is switched off after a period of time is delayed, so that the problem of jitter of the shielding door closing signal is solved, and the shielding door opening signal is reset in the period of time. Thus, during this period of time, no matter how the shield gate off signal changes, the reset of the shield gate on signal is affected.
4. And when the shielding door closing signal is switched on and the shielding door is opened and is reset through the signal, the field cleaning is finished.
Therefore, the method can effectively solve the problem of the jitter of the shielding door closing signal and improve the reliability of the field clearing system.
Drawings
FIG. 1 is a control logic diagram of the control method of the present invention.
Wherein: i0.0 and I0.1 are controller digital quantity inputs which respectively correspond to a 'clear reminding button' signal and a 'shield door closing' signal; q0.0 and Q0.1 are controller digital quantity outputs and respectively correspond to a 'clear reminding alarm lamp' signal and a 'closed shielding door' signal; DB1.DBX0.0, DB1.DBX0.1 are Boolean quantities in the shared background data block, corresponding to the "mask door opened" signal and the "graduated laboratory cleared" signal, respectively; TON Time is a delay on timer, and TOF Time is a delay off timer.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In the embodiment, a button is arranged in a scale laboratory, the button is arranged in the scale laboratory, so that a better visual field can be realized, and personnel can see the position of any corner of the scale laboratory; an alarm lamp is arranged at the shield door of the scale laboratory and can give out sound and light alarm; and meanwhile, a proximity switch is arranged at the shield door and used for detecting the state of the shield door of the scale laboratory. Button, proximity switch link to each other with the digital quantity input of controller respectively, and "clear field warning button" signal and "shielding door shut" signal can be gathered to the controller, and the digital quantity output of controller links to each other with alarm lamp and shielding door control motor respectively, and the controller can send "clear field warning alarm lamp" signal and "close shielding door" signal for control alarm lamp and close the shielding door.
FIG. 1 is a process for implementing the control method of the present invention written in ladder diagram language. The controller scans from top to bottom in turn according to the scanning period.
In the first row, assuming that the mask gate is turned on, the "mask gate off" signal is turned off, and the "mask gate on" signal is set.
The second line, before the experiment, the laboratory technician gets into the scale laboratory, observes whether the scale laboratory is inside someone to press the button, "clear field reminds button" signal switch-on, "clear field reminds alarm lamp" signal setting, begins audible-visual alarm, reminds personnel to leave the scale laboratory. After the alarm sounds, people in the scale laboratory withdraw from the scale laboratory, and people outside the scale laboratory do not enter the scale laboratory any more.
And in the third line, after the audible and visual alarm, the laboratory staff withdraw from the scale laboratory, and after 10 seconds (the period of Time is waiting for the laboratory staff to withdraw from the scale laboratory, if the scale laboratory is larger, the Time can be properly prolonged), the TON Time timer is delayed and switched on, and a command of closing the shield door is given, so that the shield door is closed.
In the fourth row, the "shield door was opened" signal is turned on, the "clear reminder warning light" signal is turned on, the "shield door is closed" signal is turned on, and the and logic of the first three signals is turned off after 1 second delay by the TOF Time timer, and the "shield door was opened" signal is reset within 1 second. Within this 1 second, no matter how the "shield gate off" signal is dithered, the present line of instructions will eventually reset the "shield gate off" signal. Thus, during this period of time, no matter how the shield gate off signal changes, the reset of the shield gate on signal is affected. If the shield door close signal is not turned on after a period of time, the field needs to be cleared again.
And in the fifth row, after the shielding door closing signal is switched on and the shielding door is switched on after the signal is inverted, the signal of the 'clear reminding alarm lamp' is reset, and a 'clear scale laboratory' signal is given.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art should be construed as being within the scope of the present invention as defined by the claims without departing from the spirit and scope of the present invention.
Claims (3)
1. A control method of a radiation scale laboratory safety interlock clearing system comprises a controller, a button arranged in a laboratory, a proximity switch and an alarm lamp, wherein the proximity switch and the alarm lamp are arranged on a screen door of the laboratory, the button and the proximity switch are respectively connected with a digital quantity input end of the controller, a digital quantity output end of the controller is respectively connected with the alarm lamp and a screen door control motor, and the controller is a Siemens sub-processor S7-CPU-1214C, and is characterized by comprising the following steps:
(1) if the shielding door is opened, the shielding door closing signal is turned on in an inverting way, and the shielding door opening signal is set;
(2) the laboratory staff enters the interior of the scale laboratory, presses the button, the clear reminding button is connected with the signal, the clear reminding alarm lamp signal is set, the acousto-optic alarm is started, and the laboratory staff is reminded to leave the scale laboratory;
(3) after the acousto-optic alarm Time t, the TON Time timer is switched on in a delayed mode, a shielding door closing instruction is given, and the shielding door is closed;
(4) after the shielding door is opened, a signal is switched on, a clear field reminding alarm lamp signal is switched on, a shielding door closing signal is switched on, and the AND logic of the three signals is delayed for Time T by a TOF Time timer and then switched off, and the shielding door is reset within the Time T and the signal is opened;
(5) after the shielding door is turned off and turned on simultaneously and the signal is turned off and turned on, the alarm lamp is reset to clear the field and a signal indicating that the laboratory is cleared is given.
2. The control method of the radiation scale laboratory safety interlock clearing system according to claim 1, characterized in that: and (4) taking the time t in the step (3) as 10 seconds.
3. The control method of the radiation scale laboratory safety interlock clearing system according to claim 1, characterized in that: and (4) the value of the time T in the step (4) is 1 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437621.4A CN108646663B (en) | 2018-05-09 | 2018-05-09 | Control method of radiation scale laboratory safety interlock clearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437621.4A CN108646663B (en) | 2018-05-09 | 2018-05-09 | Control method of radiation scale laboratory safety interlock clearing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108646663A CN108646663A (en) | 2018-10-12 |
| CN108646663B true CN108646663B (en) | 2020-05-15 |
Family
ID=63753796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810437621.4A Active CN108646663B (en) | 2018-05-09 | 2018-05-09 | Control method of radiation scale laboratory safety interlock clearing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108646663B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268668A (en) * | 2018-10-29 | 2019-01-25 | 合肥中科离子医学技术装备有限公司 | A kind of emergency stop device and control method for accelerator area protection gate interlock |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695808A (en) * | 1984-02-27 | 1987-09-22 | Ncr Corporation | Varying frequency oscillator for the reduction of radiated emissions of electronic equipment |
| CN201539166U (en) * | 2009-09-23 | 2010-08-04 | 武汉钢铁(集团)公司 | Intelligent security-door monitoring system |
| CN202563902U (en) * | 2012-04-01 | 2012-11-28 | 中国科学院上海应用物理研究所 | Synchrotron radiation human body safety protection system in a wigwam |
| CN105242614A (en) * | 2015-11-17 | 2016-01-13 | 广州新科佳都科技有限公司 | Platform screen door safety protection control method and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202001275U (en) * | 2011-02-28 | 2011-10-05 | 广西中烟工业有限责任公司 | Glue supply device monitoring system device for cigarette making machine |
| CN204884065U (en) * | 2015-08-27 | 2015-12-16 | 浙江纽恩洁瑞动力股份有限公司 | Personal security alarm system suitable for colliery gas generating electricity station |
| CN106594503B (en) * | 2016-12-28 | 2023-09-12 | 曼盛包装（上海）有限公司 | Safety relay-based safety protection control device of automatic assembly machine |
-
2018
- 2018-05-09 CN CN201810437621.4A patent/CN108646663B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695808A (en) * | 1984-02-27 | 1987-09-22 | Ncr Corporation | Varying frequency oscillator for the reduction of radiated emissions of electronic equipment |
| CN201539166U (en) * | 2009-09-23 | 2010-08-04 | 武汉钢铁(集团)公司 | Intelligent security-door monitoring system |
| CN202563902U (en) * | 2012-04-01 | 2012-11-28 | 中国科学院上海应用物理研究所 | Synchrotron radiation human body safety protection system in a wigwam |
| CN105242614A (en) * | 2015-11-17 | 2016-01-13 | 广州新科佳都科技有限公司 | Platform screen door safety protection control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108646663A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108646663B (en) | Control method of radiation scale laboratory safety interlock clearing system | |
| CN104594754A (en) | Intelligent quick automatic screening system for infectious disease at public place | |
| CN110610769B (en) | Safety accident protection method based on nuclear power plant protection system | |
| CN105071836A (en) | Prison monitoring method based on power line communication | |
| CN110049152A (en) | For identifying the method and system of mobile phone Yu veil distance | |
| US11478114B2 (en) | Toilet seat apparatus and excrement detection apparatus | |
| JP2017226507A (en) | Elevator | |
| JP6015296B2 (en) | Image processing apparatus, ambient environment estimation method, and ambient environment estimation program | |
| CN110109391B (en) | Timing control method and device for medical system, medical system and medium | |
| Grasso et al. | Automated decision procedure for earthquake early warning | |
| US9881469B2 (en) | Device, system and method for monitoring a predetermined space | |
| CN210558715U (en) | Elevator safety monitoring system | |
| JP2003324726A (en) | Object detecting apparatus using supervisory camera | |
| CN201374771Y (en) | Display capable of controlling safety-viewing distance | |
| JP6881853B2 (en) | Elevator user detection system | |
| CN106006272A (en) | Intelligent monitoring system for internet of things of elevator | |
| CN111901577A (en) | Instant projection system based on signal analysis and corresponding terminal | |
| CN105676783B (en) | One kind blows lid real-time multichannel intelligence control system and method | |
| CN214225754U (en) | Remote intelligent management device for dining room and meal preparation room | |
| JP2010235284A (en) | Elevator safety device | |
| CN110582028A (en) | method, system and terminal for detecting and reminding wireless video signal | |
| CN104347130B (en) | Nuclear power station radiation alarm inhibition method, device and system | |
| CN216870415U (en) | Radiation safety protection control system | |
| JPS6020228A (en) | Key input system | |
| JPS5831004B2 (en) | Power control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210930 Address after: 430212 No. 1-21, Yangguang Avenue, Yangguang Valley, Miaoshan office, Jiangxia Economic Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Haiwang Nuclear Energy Equipment Engineering Co.,Ltd. Address before: 430205 No. 19 Yangqiaohu Avenue, Tibetan Longdao Development Zone, Jiangxia District, Wuhan City, Hubei Province Patentee before: China State Shipbuilding Corporation, Limited (CSSC) 719th Research Institute |
|
| TR01 | Transfer of patent right |