CN102798881A - Nuclear radiation detection system - Google Patents
Nuclear radiation detection system Download PDFInfo
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- CN102798881A CN102798881A CN2012102982034A CN201210298203A CN102798881A CN 102798881 A CN102798881 A CN 102798881A CN 2012102982034 A CN2012102982034 A CN 2012102982034A CN 201210298203 A CN201210298203 A CN 201210298203A CN 102798881 A CN102798881 A CN 102798881A
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 230000005855 radiation Effects 0.000 title claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000003534 oscillatory effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract 2
- 238000013461 design Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a nuclear radiation detection system comprising a control circuit board, wherein the control circuit board is provided with a detection drive circuit, a data collection and process module, a display and alarm module, a keys operation panel and a power module; the power module has a given voltage; the key device of the data collection and process module is a singlechip which is electrically connected with the display and alarm module, the keys operation panel and the power module respectively; the detection drive circuit is provided with a GM counter tube; a boost module is connected between the GM counter tube and the singlechip and comprises a 5V boosted circuit and a counter tube drive boosted circuit; and the control circuit board is also provided with a low-voltage protection drive circuit. Due to the combination of the GM counter tube and the singlechip, the nuclear radiation detection system improves measurement range and precision, is capable of automatically converting range and adjusting response time, realizes low measurement environment, is applicable to most work situations and is small in volume and safe in use.
Description
Technical field
The present invention relates to a kind of radiometric technique, particularly the nuclear radiation detection system.
Background technology
Present radiation detecting instrument exist usually volume big, carry that inconvenience, sensitivity are low, the problem of function singleness, many radiation irradiation accidents owing to on-the-spotly lack suitable system or staff and fail to wear according to the rules the alarm type detection instrument and cause, and on the market radiation gauge generally comprises following two kinds at present: a kind of is palm-type; Profile and general semiconductor radio-like seemingly, all components and parts all are loaded in this housing, though sensitivity can reach the medicine of measurement; But volume ratio is bigger, is not easy to carry, when measuring a certain radioactivity target; Must hold whole detection instrument with hand and test near the detection of a target by detecting element, inconvenient for special occasion regionally detecting, another kind is a Worn type; One well matched hanging between waist; Volume ratio is less, and all components and parts also all are contained in the housing, but receives the restriction of volume; Sensitive detection parts have only employing small-sized; Therefore the scope of surveying is big inadequately, and insufficient sensitivity is high, can not satisfy the big occasion of certain radiation scope.
Summary of the invention
The objective of the invention is to provide for the deficiency that solves above-mentioned prior art a kind of highly sensitive, volume is little, simple to operate, nuclear radiation detection system that investigative range is big and safe.
To achieve these goals; The nuclear radiation detection system that the present invention designed comprises control circuit board, on control circuit board, is provided with to survey driving circuit, data acquisition and processing module, demonstration and alarm module, button operation panel and power module; Be provided with given voltage in the said power module; The core devices of said data acquisition and processing module is a single-chip microcomputer, and single-chip microcomputer is electrically connected with demonstration and alarm module, button operation panel and power module respectively, and said detection driving circuit is provided with the GM counter tube; Between GM counter tube and single-chip microcomputer, be connected with boost module; Said boost module comprises that 5V booster circuit and counter tube drive booster circuit, on control circuit board, also be provided with the under-voltage protection driving circuit, and the under-voltage protection driving circuit are electrically connected with single-chip microcomputer; Also comprise the clock display driver circuit in said data acquisition and the processing module, and the clock display driver circuit is electrically connected with single-chip microcomputer.
Demonstration and alarm module comprise liquid crystal display drive circuit and vibration alarming driving circuit.
Adopt singlechip technology to realize structure and characteristics simple to operate, that volume is little, function is many and safe through above-mentioned design circuit.Have Real Time Clock Display function and warning function simultaneously, clock is normally moved, let use that the staff that uses can safety and the safety of self effectively protected.
The core devices of said 5V booster circuit is the chip that boosts of HT7750V model, and the input end of the said chip that boosts connects given voltage, gives single-chip microcomputer and demonstration and alarm module after given voltage promotes voltage through the peripheral driver components and parts voltage is provided.The core parts that said counter tube drives booster circuit are step-up transformer; Said power module is connected with step-up transformer through the peripheral oscillatory circuit of the 3rd triode and transformer; Realization is to the booster tension of power module, again through the WV of GM counter tube is provided behind diode and the capacitor filtering.
The core devices of said clock display driver circuit is the real-time timepiece chip of DS1320; The serial clock pin of said real-time timepiece chip and I/O pin are connected the serial port of single-chip microcomputer respectively, are connected with crystal oscillating circuit between two crystal oscillator pins of said real-time timepiece chip.Said liquid crystal display drive circuit comprises first resistance, liquid crystal display insert group and first triode; Said first resistance, one end connects the serial port of single-chip microcomputer; The other end connects the base stage of first triode; The collector of first triode connects a pin of liquid crystal display insert group, and said vibration alarming driving circuit comprises second resistance, vibration motor and second triode, and said second resistance, one end connects the serial port of single-chip microcomputer; The other end connects the base stage of second triode, and the collector of second triode connects the vibration motor.
Be connected with hummer in the said liquid crystal display drive circuit, said button operation panel comprises reset key, power module button and mode key, and the model of said single-chip microcomputer is 89C2051.
The design of above-mentioned preferred version makes integrated operation simpler; And surveying driving circuit uses the GM counter tube to make range for measuring increase; This counter tube can automatic conversioning broad and adjustment response time simultaneously, and the precision of measuring is high, so measurement environment is low, be fit to the measurement requirement of most of workplaces; Select for use the new single chip machine technology to make that whole circuit structure and operation are simple more, function is many, the advantage that volume is little simultaneously.
The nuclear radiation detection system that the present invention obtains adopts novel singlechip technology to realize simple structure and operating function, the characteristics that volume is little, function is many and safe through above-mentioned design circuit.Have Real Time Clock Display function and warning function simultaneously; Clock is normally moved; Let use that the staff that uses can safety and the safety of self effectively protected, and survey driving circuit and use the GM counter tube to make range for measuring increase, this counter tube can automatic conversioning broad and adjustment response time simultaneously; And the precision of measuring is high, so measurement environment is low, the measurement requirement of suitable most of workplaces.
Description of drawings
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 present embodiment.
Among the figure: control circuit board 1; Survey driving circuit 2; GM counter tube 21; Boost module 3; Data acquisition and processing module 4; Show 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 driver circuit 44; 5V booster circuit 31; Chip U4 boosts; Given voltage X1; Step-up transformer B1; The peripheral oscillatory circuit 71 of transformer; The 3rd triode Q5; Real-time timepiece chip U5; Serial clock pin SCK; I/O pin SDA; Crystal oscillating circuit 441; First resistance R 11; Liquid crystal display insert group JP1; The first triode Q6; Second resistance R 5; The second triode Q4; Connect vibration motor DS1; Reset key S1; Power module button S2; Mode key S3.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment:
Like Fig. 1, Fig. 2, shown in Figure 3; The nuclear radiation detection system that present embodiment provides comprises control circuit board 1, on control circuit board 1, is provided with to survey driving circuit 2, data acquisition and processing module 4, demonstration and alarm module 5, button operation panel 6 and power module 7; Be provided with given voltage X1 in the said power module 7; The core devices of said data acquisition and processing module 4 is a single-chip microcomputer 41, and single-chip microcomputer 41 is electrically connected with demonstration and alarm module 5, button operation panel 6 and power module 7 respectively, and said detection driving circuit 2 is provided with GM counter tube 211; Between GM counter tube 211 and single-chip microcomputer 41, be connected with boost module (3); Said boost module 3 comprises that 5V booster circuit 31 and counter tube drive booster circuit, on control circuit board 1, also be provided with under-voltage protection driving circuit 8, and under-voltage protection driving circuit 8 are electrically connected with single-chip microcomputer 41; Also comprise clock display driver circuit 44 in said data acquisition and the processing module 4, and clock display driver circuit 44 is electrically connected with single-chip microcomputer 41.
Said demonstration and alarm module 5 comprise liquid crystal display drive circuit 51 and vibration alarming driving circuit 52.
The core devices of said 5V booster circuit 31 is the chip U4 that boosts of HT7750V model; The said input end that boosts chip U4 connects given voltage X1, gives single-chip microcomputer 41 after given voltage X1 promotes voltage through the peripheral driver components and parts and with demonstration and alarm module 5 voltage is provided.The core parts that said counter tube drives booster circuit are step-up transformer B1; Said power module 7 is connected with step-up transformer B1 with the peripheral oscillatory circuit 71 of transformer through the 3rd triode Q5; Realization is to the booster tension of power module 7, again through the WV of GM counter tube 21 is provided behind diode and the capacitor filtering.
The core devices of said clock display driver circuit 44 is the real-time timepiece chip U5 of DS1320; The serial clock pin SCK of said real-time timepiece chip U5 and I/O pin SDA are connected the serial port of single-chip microcomputer 41 respectively, are connected with crystal oscillating circuit 441 between two crystal oscillator pins of said real-time timepiece chip U5.Said liquid crystal display drive circuit 51 comprises first resistance R 11, liquid crystal display insert group JP1 and the first triode Q6; Said 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 the pin of liquid crystal display insert group JP1, and said vibration alarming driving circuit 52 comprises second resistance R 5, vibration motor DS1 and the second triode Q4, and said second resistance R, 5 one ends connect the serial port of single-chip microcomputer 41; The other end connects the base stage of the second triode Q4, and the collector of the second triode Q4 connects vibration motor DS1.
Be connected with hummer LS1 in the said liquid crystal display drive circuit 51, said button operation panel 6 comprises reset key S1, power module button S2 and mode key S3, and the model of said single-chip microcomputer 41 is 89C2051.
Each pin connection structure of circuit design in the present embodiment is not unique a kind of method for designing, just considers as the preferred version of present embodiment.
The practical implementation operational circumstances: at first give single-chip microcomputer 41 programming programs, No. 5 batteries of two joints of in this system, packing into then, install battery after, realize following function through the programming of single-chip microcomputer 41 and the combination of circuit: press power key S2, the unlatching of system power supply module.Pin power key S2, decontrol after 3 seconds, then shutdown system power module (system closedown or change battery, integral dose and parameter can not lost, clock is normally walked).Liquid crystal display drive circuit 51 meeting developer dose rate monitor states and clock are month demonstration of day time-division.Operator scheme for revise through modification, the removing modification of integral dose, real-time clock between the modification, type of alarm vibration or the audible alarm that the variation of mode key S3 are used the modification that can realize, alarm threshold value Measuring Time, the switching between dose rate monitoring and integral dose monitoring, the function modification of display backlight functional switch.Since provide that hardware is formed and required controlling schemes after, the programming of single-chip microcomputer 41 and to write be the basic fundamental that the computer software technology personnel can accomplish is not so describe in detail at this.
Design through this circuit and with program combine to the implementation of warning function be:
(1) dose rate overload-alarm and overload protection
In the measuring process, when dose rate surpassed the measurement range of system, system provided audible alarm and rings 3 times p.s., and on screen, shows overload sign " OVER ".For the protection detector and prolong system serviceable life, will cut off the detector power module automatically simultaneously.Self-opening power supply module in the time of in measured rate is got back to range.
(2) dose rate is reported to the police
When dose rate in the measuring process during greater than set alarm threshold value, system will report to the police according to the type of alarm that is provided with.When audible alarm was opened, 1 second sound once.Dose rate less than threshold value after, will stop automatically reporting to the police.
(3) integral dose is reported to the police
When integral dose greater than 1mSv or the every increase of integral dose 1mSv, system will provide audible alarm, alarm sound be 2 seconds sound once, ring three at every turn.
(4) the under-voltage indication of battery
When system's power supply module voltage was not enough, battery is under-voltage, and Warning Mark showed.Remind the user in time to change battery, otherwise possibly cause the inaccurate of systematic survey data.When changing battery, first shutdown system is opened battery cover, takes out used batteries, the new battery of packing into then.
Claims (9)
1. nuclear radiation detection system; Comprise control circuit board (1); On control circuit board (1), be provided with and survey driving circuit (2), data acquisition and processing module (4), demonstration and alarm module (5), button operation panel (6) and power module (7); Be provided with given voltage (X1) in the said power module (7); The core devices of said data acquisition and processing module (4) is single-chip microcomputer (41), and single-chip microcomputer (41) is electrically connected with demonstration and alarm module (5), button operation panel (6) and power module (7) respectively, it is characterized in that said detection driving circuit (2) is provided with GM counter tube (21); Between GM counter tube (21) and single-chip microcomputer (41), be connected with boost module (3); Said boost module (3) comprises that 5V booster circuit (31) and counter tube drive booster circuit, on control circuit board (1), also be provided with under-voltage protection driving circuit (8), and under-voltage protection driving circuit (8) are electrically connected with single-chip microcomputer (41); Also comprise clock display driver circuit (44) in said data acquisition and the processing module (4), and clock display driver circuit (44) is electrically connected with single-chip microcomputer (41).
2. nuclear radiation detection according to claim 1 system is characterized in that said demonstration and alarm module (5) comprise liquid crystal display drive circuit (51) and vibration alarming driving circuit (52).
3. nuclear radiation detection according to claim 1 system; The core devices that it is characterized in that said 5V booster circuit (31) is the chip that boosts (U4) of HT7750V model; The input end of the said chip that boosts (U4) connects given voltage (X1), gives single-chip microcomputer (41) and demonstration and alarm module (5) after given voltage (X1) promotes voltage through the peripheral driver components and parts voltage is provided.
4. the core parts that said counter tube drives booster circuit are step-up transformer (B1); Said power module (7) is connected with step-up transformer (B1) with the peripheral oscillatory circuit of transformer (71) through the 3rd triode (Q5); Realization is to the booster tension of power module (7), again through the WV of GM counter tube (21) is provided behind diode and the capacitor filtering.
5. nuclear radiation detection according to claim 1 system; The core devices that it is characterized in that said clock display driver circuit (44) is the real-time timepiece chip (U5) of DS1320; The serial clock pin (SCK) of said real-time timepiece chip (U5) and I/O pin (SDA) are connected the serial port of single-chip microcomputer (41) respectively, are connected with crystal oscillating circuit (441) between two crystal oscillator pins of said real-time timepiece chip (U5).
6. said liquid crystal display drive circuit (51) comprises first resistance (R11), liquid crystal display insert group (JP1) and first triode (Q6); Said first resistance, one end connects the serial port of single-chip microcomputer (41); The other end connects the base stage of first triode (Q6); The collector of first triode (Q6) connects a pin of liquid crystal display insert group (JP1); Said vibration alarming driving circuit (52) comprises second resistance (R5), vibration motor (DS1) and second triode (Q4); Said second resistance (R5) end connects the serial port of single-chip microcomputer (41), and the other end connects the base stage of second triode (Q4), and the collector of second triode (Q4) connects vibration motor (DS1).
7. nuclear radiation detection according to claim 1 system; The core devices that it is characterized in that said clock display driver circuit (44) is the real-time timepiece chip (U5) of DS1320; The serial clock pin (SCK) of said real-time timepiece chip (U5) and I/O pin (SDA) are connected the serial port of single-chip microcomputer (41) respectively, are connected with crystal oscillating circuit (441) between two crystal oscillator pins of said real-time timepiece chip (U5).
8. said liquid crystal display drive circuit (51) comprises first resistance (R11), liquid crystal display insert group (JP1) and first triode (Q6); Said first resistance, one end connects the serial port of single-chip microcomputer (41); The other end connects the base stage of first triode (Q6); The collector of first triode (Q6) connects a pin of liquid crystal display insert group (JP1); Said vibration alarming driving circuit (52) comprises second resistance (R5), vibration motor (DS1) and second triode (Q4); Said second resistance (R5) end connects the serial port of single-chip microcomputer (41), and the other end connects the base stage of second triode (Q4), and the collector of second triode (Q4) connects vibration motor (DS1).
9. according to claim 1 or 2 or 3 or 4 or 5 described nuclear radiation detection systems; It is characterized in that being connected with in the said liquid crystal display drive circuit (51) hummer (LS1); Said button operation panel (6) comprises reset key (S1), power module button (S2) and mode key (S3), and the model of said 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 true CN102798881A (en) | 2012-11-28 |
| CN102798881B CN102798881B (en) | 2016-03-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336209A (en) * | 2013-06-28 | 2013-10-02 | 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 control device of air purifier |
| CN104833391A (en) * | 2015-04-13 | 2015-08-12 | 北京华泰诺安科技有限公司 | Mode converting system and mode converting method of nuclear 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 |
| CN112907914A (en) * | 2021-02-09 | 2021-06-04 | 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336209A (en) * | 2013-06-28 | 2013-10-02 | 中国人民解放军海军潜艇学院 | Fault diagnosis device for nuclear radiation monitoring system |
| 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 control device of air purifier |
| CN104833391A (en) * | 2015-04-13 | 2015-08-12 | 北京华泰诺安科技有限公司 | Mode converting system and mode converting method of nuclear biochemical sensor |
| 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 |
| CN112907914A (en) * | 2021-02-09 | 2021-06-04 | 陕西卫峰核电子有限公司 | Nuclear criticality alarm system and alarm method thereof |
| 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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| CN102798881B (en) | 2016-03-30 |
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