CN102798881B - nuclear radiation detection system - Google Patents
nuclear radiation detection system Download PDFInfo
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- CN102798881B CN102798881B CN201210298203.4A CN201210298203A CN102798881B CN 102798881 B CN102798881 B CN 102798881B CN 201210298203 A CN201210298203 A CN 201210298203A CN 102798881 B CN102798881 B CN 102798881B
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Abstract
The invention discloses a kind of nuclear radiation detection system, comprise control circuit board, control circuit board is provided with detection driving circuit, data acquisition and processing module, display and alarm module, button operation panel and power module, given voltage is provided with in described power module, the core devices of described data acquisition and processing module is single-chip microcomputer, and single-chip microcomputer respectively with display and alarm module, button operation panel and power module electrical connection, described detection driving circuit is provided with GM counter tube, boost module is connected with between GM counter tube and single-chip microcomputer, described boost module comprises 5V booster circuit and counter tube drives booster circuit, control circuit board is also provided with under-voltage protection driving circuit.The present invention combines by adopting GM counter tube and singlechip technology, improves measurement range and precision degree, energy automatic conversioning broad and adjustment response time, achieves measurement environment low, be applicable to most of workplace, and volume is little, use safety.
Description
Technical field
The present invention relates to a kind of radiometric technique, particularly nuclear radiation detection system.
Background technology
Usually it is larger to there is volume in current radiation detecting instrument, carry inconvenience, sensitivity is low, the problem of function singleness, many radiation irradiation accidents lack applicable system due to scene or staff could not wear alarm type detection instrument according to the rules and cause, and current radiation gauge on the market generally comprises following two kinds: a kind of is palm-type, profile and general semiconductor radio-like are seemingly, all components and parts are all loaded in this housing, although sensitivity can reach the medicine of measurement, but volume ratio is larger, be not easy to carry with, when measuring a certain radioactivity target, must test near the detection of a target by detecting element with hand-held whole detection instrument, inconvenient for special occasion regionally detecting, another kind is Worn type, one well matchedly hangs over loins, volume is smaller, all components and parts are also all contained in housing, but by the restriction of volume, sensitive detection parts only have employing small-sized, therefore the scope detected is large not, insufficient sensitivity is high, the occasion that certain radiation scope is large can not be met.
Summary of the invention
The object of the invention is in order to solve above-mentioned the deficiencies in the prior art provide a kind of highly sensitive, volume is little, simple to operate, investigative range large and the nuclear radiation detection system of safety.
To achieve these goals, nuclear radiation detection system designed by the present invention, comprise control circuit board, control circuit board is provided with detection driving circuit, data acquisition and processing module, display and alarm module, button operation panel and power module, given voltage is provided with in described power module, the core devices of described data acquisition and processing module is single-chip microcomputer, and single-chip microcomputer respectively with display and alarm module, button operation panel and power module electrical connection, described detection driving circuit is provided with GM counter tube, boost module is connected with between GM counter tube and single-chip microcomputer, described boost module comprises 5V booster circuit and counter tube drives booster circuit, control circuit board is also provided with under-voltage protection driving circuit, and under-voltage protection driving circuit is electrically connected with single-chip microcomputer, clock display driving circuit is also comprised in described data acquisition and processing module, and clock display driving circuit is electrically connected with single-chip microcomputer.
Display and alarm module comprise liquid crystal display drive circuit and vibration alarming driving circuit.
By above-mentioned design circuit adopt singlechip technology achieve structure and simple to operate, volume is little, function is many and the feature of safety.There is Real Time Clock Display function and warning function simultaneously, clock after shutdown, can be made normally to run, allow use staff can safety use and the safety of self effectively protected.
The core devices of described 5V booster circuit is the boost chip of HT7750V model, and the input end of described boost chip connects given voltage, and given voltage is given single-chip microcomputer and display and alarm module after being promoted by voltage by peripheral driver components and parts and provided voltage.Described counter tube drives the core parts of booster circuit to be step-up transformer, described power module is connected with step-up transformer by the peripheral oscillatory circuit of the 3rd triode and transformer, realize the booster tension to power module, then by providing the operating voltage of GM counter tube after diode and capacitor filtering.
The core devices of described clock display driving circuit is the real-time timepiece chip of DS1320, serial clock pin and the I/O pin of described real-time timepiece chip are connected the serial port of single-chip microcomputer respectively, are connected with crystal oscillating circuit between two crystal oscillator pins of described real-time timepiece chip.Described liquid crystal display drive circuit comprises the first resistance, liquid crystal display insert group and the first triode, described first resistance one end connects the serial port of single-chip microcomputer, the other end connects the base stage of the first triode, the collector of the first triode connects a pin of liquid crystal display insert group, described vibration alarming driving circuit comprises the second resistance, oscillating motor and the second triode, described second resistance one end connects the serial port of single-chip microcomputer, the other end connects the base stage of the second triode, and the collector of the second triode connects oscillating motor.
Be connected with hummer in described liquid crystal display drive circuit, described button operation panel comprises reset key, power module button and mode key, and the model of described single-chip microcomputer is 89C2051.
The design of above-mentioned preferred version makes integrated operation simpler, and the scope that detection driving circuit uses GM counter tube to make to measure increases, this counter tube energy automatic conversioning broad and the adjustment response time simultaneously, and the precision measured is high, therefore the measurement requirement of low, the applicable most of workplace of measurement environment, select new single chip machine technology to make overall circuit structure and operation are more simple, function is many, the advantage that volume is little simultaneously.
The nuclear radiation detection system that the present invention obtains, adopts by above-mentioned design circuit that novel singlechip technology achieves simple structure and operating function, volume is little, function is many and the feature of safety.There is Real Time Clock Display function and warning function simultaneously, clock can be made after shutdown normally to run, allow use staff can safety use and the safety of self effectively protected, and the scope that detection driving circuit uses GM counter tube to make to measure increases, this counter tube energy automatic conversioning broad and the adjustment response time simultaneously, and the precision measured is high, the therefore measurement requirement of low, the applicable most of workplace of measurement environment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the control circuit board of embodiment;
Fig. 2 is the concrete structure theory diagram of Fig. 1;
Fig. 3 is the circuit theory diagrams of the present embodiment.
In figure: control circuit board 1, detection driving circuit 2, GM counter tube 21, boost module 3, data acquisition and processing module 4, display and alarm module 5, button operation panel 6, power module 7, single-chip microcomputer 41, under-voltage protection driving circuit 8, liquid crystal display drive circuit 51, vibration alarming driving circuit 52, clock display driving circuit 44, 5V booster circuit 31, boost chip U4, given voltage X1, step-up transformer B1, the peripheral oscillatory circuit 71 of transformer, 3rd triode Q5, real-time timepiece chip U5, serial clock pin SCK, I/O pin SDA, crystal oscillating circuit 441, first resistance R11, liquid crystal display insert group JP1, first triode Q6, second resistance R5, second triode Q4, connect oscillating motor DS1, reset key S1, power module button S2, mode key S3.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment:
As Fig. 1, Fig. 2, shown in Fig. 3, the nuclear radiation detection system that the present embodiment provides, comprise control circuit board 1, control circuit board 1 is provided with detection driving circuit 2, data acquisition and processing module 4, display and alarm module 5, button operation panel 6 and power module 7, given voltage X1 is provided with in described power module 7, the core devices of described data acquisition and processing module 4 is single-chip microcomputer 41, and single-chip microcomputer 41 respectively with display and alarm module 5, button operation panel 6 and power module 7 are electrically connected, described detection driving circuit 2 is provided with GM counter tube 211, boost module (3) is connected with between GM counter tube 211 and single-chip microcomputer 41, described boost module 3 comprises 5V booster circuit 31 and counter tube drives booster circuit, control circuit board 1 is also provided with under-voltage protection driving circuit 8, and under-voltage protection driving circuit 8 is electrically connected with single-chip microcomputer 41, clock display driving circuit 44 is also comprised in described data acquisition and processing module 4, and clock display driving circuit 44 is electrically connected with single-chip microcomputer 41.
Described display and alarm module 5 comprise liquid crystal display drive circuit 51 and vibration alarming driving circuit 52.
The core devices of described 5V booster circuit 31 is the boost chip U4 of HT7750V model, the input end of described boost chip U4 connects given voltage X1, and given voltage X1 is given single-chip microcomputer 41 and display and alarm module 5 and provides voltage after being promoted by voltage by peripheral driver components and parts.Described counter tube drives the core parts of booster circuit to be step-up transformer B1, described power module 7 is connected with step-up transformer B1 with the peripheral oscillatory circuit 71 of transformer by the 3rd triode Q5, realize the booster tension to power module 7, then by providing the operating voltage of GM counter tube 21 after diode and capacitor filtering.
The core devices of described clock display driving circuit 44 is the real-time timepiece chip U5 of DS1320, serial clock pin SCK and the I/O pin SDA of described real-time timepiece chip U5 are connected the serial port of single-chip microcomputer 41 respectively, are connected with crystal oscillating circuit 441 between two crystal oscillator pins of described real-time timepiece chip U5.Described liquid crystal display drive circuit 51 comprises the first resistance R11, liquid crystal display insert group JP1 and the first triode Q6, described first resistance one end connects the serial port of single-chip microcomputer 41, the other end connects the base stage of the first triode Q6, the collector of the first triode Q6 connects a pin of liquid crystal display insert group JP1, described vibration alarming driving circuit 52 comprises the second resistance R5, oscillating motor DS1 and the second triode Q4, described second resistance R5 one end connects the serial port of single-chip microcomputer 41, the other end connects the base stage of the second triode Q4, the collector of the second triode Q4 connects oscillating motor DS1.
Be connected with hummer LS1 in described liquid crystal display drive circuit 51, described button operation panel 6 comprises reset key S1, power module button S2 and mode key S3, and the model of described single-chip microcomputer 41 is 89C2051.
Each pin connection structure of the circuit design in the present embodiment is not unique a kind of method for designing, just considers as the preferred version of the present embodiment.
Concrete implementation and operation situation: first give single-chip microcomputer 41 programming program, then load two joints No. 5 batteries within the system, after installing battery, realize following functions: by power key S2 by the programming of single-chip microcomputer 41 and the combination of circuit, system power supply module is opened.Pin power key S2, decontrol after 3 seconds, then shutdown system power module (system closedown or replacing battery, integral dose and parameter can not be lost, and clock is normally walked).Liquid crystal display drive circuit 51 meeting developer dose rate monitor state and clock are the display of the time-division day moon.Operator scheme be by the change of mode key S3 is used amendment, the amendment of alarm threshold value, amendment between type of alarm vibration or audible alarm, the removing amendment of integral dose, real-time clock amendment, dose rate monitoring and the integral dose that can realize Measuring Time monitor between switching, display backlight functional switch function revise.Due to after providing hardware composition and required control program, it is the basic fundamental that computer software technology personnel can complete that the programming of single-chip microcomputer 41 also writes, so no further details to be given herein.
By the design of this circuit and with the combination of program to the implementation of warning function be:
(1) dose rate overload-alarm and overload protection
In measuring process, when dose rate exceedes the measurement range of system, system provides audible alarm and rings 3 times p.s., and on screen, show overload mark " OVER ".Simultaneously for protection detector and extend system serviceable life, will automatically cut off detector power module.The self-opening power supply module when measured rate is got back in range.
(2) dose rate is reported to the police
When dose rate in measuring process is greater than set alarm threshold value, system is reported to the police according to the type of alarm arranged.When audible alarm is opened, 1 second sound once.After dose rate is less than threshold value, by automatic stop alarm.
(3) integral dose is reported to the police
When integral dose is greater than 1mSv or integral dose often increases 1mSv, system will provide audible alarm, alarm sound be 2 seconds sound once, ring three sound at every turn.
(4) battery undervoltage instruction
When system power supply power module undertension, battery undervoltage Warning Mark shows.Reminding user changes battery in time, otherwise may cause the inaccurate of system measurement data.When changing battery, first shutdown system, opens battery cover, takes out used batteries, then loads new battery.
Claims (3)
1. a nuclear radiation detection system, comprise control circuit board (1), control circuit board (1) is provided with detection driving circuit (2), data acquisition and processing module (4), display and alarm module (5), button operation panel (6) and power module (7), given voltage (X1) is provided with in described power module (7), the core devices of described data acquisition and processing module (4) is single-chip microcomputer (41), and single-chip microcomputer (41) respectively with display and alarm module (5), button operation panel (6) and power module (7) electrical connection, it is characterized in that described detection driving circuit (2) is provided with GM counter tube (21), boost module (3) is connected with between GM counter tube (21) and single-chip microcomputer (41), described boost module (3) comprises 5V booster circuit (31) and counter tube drives booster circuit, control circuit board (1) is also provided with under-voltage protection driving circuit (8), and under-voltage protection driving circuit (8) is electrically connected with single-chip microcomputer (41), clock display driving circuit (44) is also comprised in described data acquisition and processing module (4), and clock display driving circuit (44) is electrically connected with single-chip microcomputer (41), described display and alarm module (5) comprise liquid crystal display drive circuit (51) and vibration alarming driving circuit (52), the core devices of described 5V booster circuit (31) is the boost chip (U4) of HT7750V model, the emitter of 1 pin connecting triode Q7 of described boost chip (U4), the emitter of triode Q7 connects the emitter of the 3rd triode Q5, by the peripheral oscillatory circuit (71) of the collector connection transformer of the 3rd triode Q5, 5 pin of boost chip (U4) connect given voltage by inductance (L2), and inductance (L2) is also connected power supply (VDD) by diode (D3) with the common port of 5 pin of boost chip (U4), the input end of described boost chip (U4) connects given voltage (X1), given voltage (X1) is given single-chip microcomputer (41) and display and alarm module (5) and is provided voltage after being promoted by voltage by peripheral driver components and parts, described counter tube drives the core parts of booster circuit to be step-up transformer (B1), described power module (7) is connected with step-up transformer (B1) by the peripheral oscillatory circuit (71) of the 3rd triode (Q5) and transformer, realize the booster tension to power module (7), again by providing the operating voltage of GM counter tube (21) after diode and capacitor filtering.
2. nuclear radiation detection system according to claim 1, it is characterized in that the core devices of described clock display driving circuit (44) is the real-time timepiece chip (U5) of DS1320, serial clock pin (SCK) and the I/O pin (SDA) of described real-time timepiece chip (U5) are connected the serial port of single-chip microcomputer (41) respectively, crystal oscillating circuit (441) is connected with between two crystal oscillator pins of described real-time timepiece chip (U5), described liquid crystal display drive circuit (51) comprises the first resistance (R11), liquid crystal display insert group (JP1) and the first triode (Q6), described first resistance one end connects the serial port of single-chip microcomputer (41), the other end connects the base stage of the first triode (Q6), the collector of the first triode (Q6) connects a pin of liquid crystal display insert group (JP1), described vibration alarming driving circuit (52) comprises the second resistance (R5), oscillating motor (DS1) and the second triode (Q4), described second resistance (R5) one end connects the serial port of single-chip microcomputer (41), the other end connects the base stage of the second triode (Q4), the collector of the second triode (Q4) connects oscillating motor (DS1).
3. nuclear radiation detection system according to claim 1 and 2, it is characterized in that being connected with hummer (LS1) in described liquid crystal display drive circuit (51), described button operation panel (6) comprises reset key (S1), power module button (S2) and mode key (S3), and the model of described single-chip microcomputer (41) is 89C2051.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210298203.4A CN102798881B (en) | 2012-08-21 | 2012-08-21 | nuclear radiation detection system |
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| CN201210298203.4A CN102798881B (en) | 2012-08-21 | 2012-08-21 | nuclear radiation detection system |
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| CN102798881A CN102798881A (en) | 2012-11-28 |
| CN102798881B true CN102798881B (en) | 2016-03-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103336209B (en) * | 2013-06-28 | 2015-07-08 | 中国人民解放军海军潜艇学院 | Fault diagnosis device for nuclear radiation monitoring system |
| CN103822335A (en) * | 2014-01-14 | 2014-05-28 | 合肥荣事达三洋电器股份有限公司 | Remote controller of air purifier |
| CN104833391B (en) * | 2015-04-13 | 2017-09-29 | 北京华泰诺安探测技术有限公司 | The mode change system and its mode conversion method of one seed nucleus biochemical sensor |
| CN110133704A (en) * | 2019-06-18 | 2019-08-16 | 阿拓米柯(北京)科技有限公司 | A kind of electronic personal dosage board |
| CN112907914B (en) * | 2021-02-09 | 2022-01-25 | 陕西卫峰核电子有限公司 | Nuclear criticality alarm system and alarm method thereof |
| CN113341846A (en) * | 2021-06-30 | 2021-09-03 | 重庆建安仪器有限责任公司 | Method for measuring GM counter on nuclear radiometer |
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| CN202093178U (en) * | 2011-03-23 | 2011-12-28 | 李忠良 | Household portable radioactivity detector |
| CN202166744U (en) * | 2011-08-14 | 2012-03-14 | 刘勇 | Nuclear radiation detector |
| CN102628952A (en) * | 2012-04-13 | 2012-08-08 | 大连新程软件有限公司 | Radioactive ray tester |
| CN202794547U (en) * | 2012-08-21 | 2013-03-13 | 宁波智明芯电子科技有限公司 | Nuclear radiation detection system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093178U (en) * | 2011-03-23 | 2011-12-28 | 李忠良 | Household portable radioactivity detector |
| CN202166744U (en) * | 2011-08-14 | 2012-03-14 | 刘勇 | Nuclear radiation detector |
| CN102628952A (en) * | 2012-04-13 | 2012-08-08 | 大连新程软件有限公司 | Radioactive ray tester |
| CN202794547U (en) * | 2012-08-21 | 2013-03-13 | 宁波智明芯电子科技有限公司 | Nuclear radiation detection system |
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| CN102798881A (en) | 2012-11-28 |
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