CN1444038A - Telemetering remote-reading surface type nucleon moisture density meter - Google Patents
Telemetering remote-reading surface type nucleon moisture density meter Download PDFInfo
- Publication number
- CN1444038A CN1444038A CN 03113295 CN03113295A CN1444038A CN 1444038 A CN1444038 A CN 1444038A CN 03113295 CN03113295 CN 03113295 CN 03113295 A CN03113295 A CN 03113295A CN 1444038 A CN1444038 A CN 1444038A
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- processing unit
- central processing
- control circuit
- keyboard
- moisture density
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- 230000005251 gamma ray Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 11
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000002285 radioactive effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- -1 dry density Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The telemetering remote-reading surface type nucleon moisture densitometer includes gamma-source positioning rod on which a handle is mounted and source rod which are fixed on the machine shell. The gamma-ray source is placed in the base end portion of source rod, the neutron ray source is fixed in bottom portion of machine shell, the gamme-ray detector and neutron ray detector are placed in the bottom portion of machine shell, and the panel on which the display screen and operation keyboard are mounted is placed on the panel of the machine shell, and the telemetering on-palm controller whose interior is equipped with wired control circuit of wireless control circuit is connected with keyboard of moisture densitometer by means of interface, and the computer and printer are connected with moisture densitometer keyboard by means of interface.
Description
Technical field:
Remote measurement distance-reading surface type nuclear moisture density instrument of the present invention belongs to the engineering construction quality detector.
Background technology:
Surface type nuclear moisture density instrument is the moisture that is used for roller compaction construction on the engineerings such as highway, railway, hydraulic engineering, the testing tool of density measure.This instrument adopts gamma-rays and neutron ray and corresponding detector to realize measurement to Media density and moisture respectively, and promptly it is to utilize gamma-rays and material to make in the transmission of time spent and the scattering process absorbed principle to come density measurement; Utilize fast neutron and hydrogen atom effect to be carried out moisture measurement by the principle of slowing down.This instrument has fast, the nondestructive measurement function, multinomial parameters in soil mechanics such as the wet density of testing staff's direct-reading immediately measured material, dry density, water cut, water percentage, compactness, for guaranteeing engineering construction quality, instructing engineering construction that important effect is arranged, it is special when the test section of engineering carries out compaction test, the detection data can be provided as early as possible, consult for engineering technical personnel's research.
Existing import or homemade surface type nuclear moisture density instrument are the mechano-electronic integrated instrument, it is suitable that General Instrument is undoubtedly, but nucelonic instrument has in use been brought major defect, guidance panel and LCDs as instrument are installed on the Instrument shell, and measuring two radioactive sources all are installed in the Instrument shell and instrument source bar on.Therefore in use, the instrumentation personnel must squat down near instrument, and carry out the measurement parameter setting, retrieve for examination and the measurement result reading with the direct touch keyboard of finger.Because the people contacts with the direct of instrument, make the operator be subjected to the multilevel excessively irradiation of these radioactive ray that should not be subjected to.Sometimes the too strong as sun of environmental background light down or light too a little less than as night, evening, liquid crystal display often is difficult for seeing clearly, so the phenomenon that data recording makes a mistake appears in regular meeting.Construction for the test section of heavy construction detects, many designs, research, workmen often need be at on-the-spot instant test result and the discussion research arrangement and method for construction of understanding test figure of engineering construction, sometimes there are many people to enclose and see the instrument situation, this all has inconvenience for operating instrument, read data and construction, can make instrument simultaneously again around personnel be subjected to unnecessary radioactive ray irradiation.
Summary of the invention:
The objective of the invention is at the deficiencies in the prior art, providing a kind of does not need operating personnel to squat down near instrument, only need carry out the setting of telemeasurement parameter, retrieve for examination and the measurement result reading with the direct touch keyboard of finger, easy to use, the detection level height, can significantly reduce the exposure dose of radioactive source, guarantee the remote measurement distance-reading surface type nuclear moisture density instrument of radiation safety the staff.For achieving the above object, remote measurement distance-reading surface type nuclear moisture density instrument of the present invention, comprise γ one source location bar, handle, the source bar, casing, be characterized in, gamma ray projector is installed on bar bottom, source, place the lead shield body in the casing, the centre position of bottom of shell is fixed in the neutron ray source, gamma ray detector, the neutron ray detector all places on the symmetric position of bottom of shell correspondence, and the panel that display screen and operation keyboard are housed places on the machine shell panel, and the remote measuring and controlling handheld controller links to each other by the keyboard of interface with the moisture density instrument, computer and printer also link to each other with moisture density instrument keyboard by interface, and line control circuit or radio control circuit are housed in the handheld controller.Wherein by being forming of line control circuit that central processing unit is connected in moisture density instrument keyboard by the keyboard input port, two continuous level transferring chip are coupled to central processing unit respectively, LCD by resistance be connected in central processing unit, power supply is connected in central processing unit respectively by power management chip, two level transferring chip and LCD, central processing unit also are connected in two input/output terminals of the logical and not gates of series connection mutually respectively.Radio control circuit comprises control circuit and remote-control communication circuit, the composition of control circuit is that central processing unit is connected in LCD, power supply is connected in central processing unit and LCD respectively by power management chip, central processing unit also links to each other with moisture density instrument keyboard by the keyboard input interface, and the remote-control communication circuit is linked to each other with control circuit by interface by a slice radio transmitting and receiving chip.
The present invention compared with prior art has following function and advantage:
1, utilizes handheld controller, instrument is carried out long-distance remote control, remote measurement and distance-reading by wired or wireless mode;
2, utilize computer, instrument is carried out long-distance remote control, remote measurement and distance-reading, and carry out the management of corresponding measurement data by wired mode;
Therefore, use this instrument, can monitor simultaneously a long way off and check that instrument measures situation in real time for many people, no longer need the staff to squat down and nearby check real-time monitoring situation at instrument, so this instrument is for improving the apparatus measures level and guaranteeing that construction quality provides a kind of reliable monitoring means, also significantly reduced the radiation of radioactive source simultaneously, guaranteed personal safety the staff.
Description of drawings:
Fig. 1, remote measurement distance-reading surface type nuclear moisture density instrument structural representation.
Fig. 2, the line control circuit schematic diagram is arranged.
Fig. 3, radio control circuit and central control circuit schematic diagram.
The remote-control communication circuit theory diagrams of Fig. 4, radio control circuit.
Fig. 5 Fig. 6, computer program process flow diagram.
Label title among Fig. 1: 1, γ one source location bar, 2, handle, 3, the source bar, 4, casing, 5, gamma ray projector, 6, the neutron ray source, 7, gamma ray detector, 8, suffered ray detector, 9, panel.
Designation among Fig. 2: U
1A-U
2AThe logical and not gate, U
2With U
5, level transferring chip, U
3, power management chip, U
4Central processing unit, U
6, socket, U
7, the battery supply input end, J
1, the membrane keyboard input port, J
2, socket, L
CD1, LCD.
Designation among Fig. 3: U
1AWith U
1C, the logical and not gate, U
3, power management chip, U
4Central processing unit, U
7, the battery supply input end, J
1The membrane keyboard input port, L
CD1, LCD.
Designation among Fig. 4: U
1, wireless receiving and dispatching one chip, J
1, the central control circuit interface.
Embodiment:
According to above-mentioned accompanying drawing narration the specific embodiment of the present invention, as shown in Figure 1, composition of the present invention comprises that γ one source location bar 1 and source bar 3 all are fixed on the casing 4, handle 2 is installed on γ one source location bar 1 and the source bar 3, more than four installation site the same with prior art, be characterized in that gamma ray projector 5 places source bar 3 bottoms, during measurement, utilize handle 2 to make source bar 3 regulate the measuring height of gamma ray projector 5 along moving up and down of γ one source location bar 1, when not measuring, gamma ray projector is placed wolfram steel shield in the casing 4; Casing 4 middle parts are fixed in neutron ray source 6, place gamma ray detector 7 and neutron ray detector 8 on the corresponding symmetric position in casing 4 bottoms can adopt Geiger-Miller (G-M) pipe and helium (He-3) pipe respectively, display screen, operation keyboard all place on the panel 9 on the casing 4, the remote measuring and controlling handheld controller, computer, printer all links to each other with the keyboard of instrument by interface, and line control circuit or radio control circuit have been housed in the handheld controller, its circuit theory diagrams such as Fig. 2-and shown in Figure 4.Wherein Fig. 2 has the line control circuit schematic diagram, and the composition of circuit is by two level transferring chip U
2With U
5With LCD L
CD1Be coupled to central processing unit U respectively
4, central processing unit U
4By membrane keyboard input port J
1Link to each other battery supply U with moisture density instrument keyboard
7By power management chip U
3Be connected in central processing unit U respectively
4, be connected in level transferring chip U
2With U
5, be connected in LCD L
CD1, also have two logical and not gate U of series connection mutually
1B, U
1CInput go out end and be connected in central processing unit U respectively
4
Central processing unit can adopt At89C52, and level transferring chip can adopt the MAX232 chip, and the logical and not gate can adopt CD401.
The course of work:
The user is after pressing the start key, directly with the SHDN pin ground connection of power management chip (MAX667), power management chip (MAX667) operate as normal output 5V power supply, the single-chip microcomputer electrification reset enters normal procedure, arranges 16 pin input high levels of central processing unit (89C52) at the beginning of program, put the SHDN pin of MAX667 low equally through the anti-phase back of logical and not gate (CD4011), the user is by start during key like this, and the SHDN pin still is not locked into low level, and instrument power source is opened successfully.
Start back telepilot and instrument are shaken hands, and detect the online normal operating conditions that then enters of instrument, and instrument did not provide handshake yet and then thinks error starting in six seconds, and shutdown is to save power supply.
" the welcome interface, wait for user's button input, and be in dormant state, be to save power supply.
The function button of telepilot adopts the scan matrix of 2*5, by the B mouth control of single-chip microcomputer, wherein 5 row outputs is low level, and 2 row connect on the 10K Ω resistance and draw, 2 twice anti-phase output high level of passing through logical and not gate (CD4011) can not cause interruption when having actuation of keys; During button because line and its 2 row of effect in low level must be arranged, through the buffering of CD4011, output low level is to the external interrupt 1 of single-chip microcomputer, single-chip microcomputer withdraws from from dormant state, carries out the keyboard scan program.After relative program executes, enter dormant state once more.
4 position datawires are adopted in single-chip microcomputer and Liquid Crystal Module communication, cooperate 3 control lines to reach read-write operation to liquid crystal again.
The serial output signal of telepilot is converted into+the RS232 level of 12V/-12V through level transferring chip (MAX232) level transferring chip, with instrument communication.
When the user closes telepilot by closing key, will program point out whether determine shutdown? the NO key is pressed in cancellation, determines that 16 pin of single-chip microcomputer are put low by YES key, through logical and not gate (CD4011) the SHDN pin of power management chip (MAX667) is put height effectively, thereby close whole power supply of remote controller.
3 pin of power management chip (MAX667) are monitored supply voltage by divider resistance in addition, and are under-voltage by LBO pin output notice single-chip microcomputer when power supply is lower than certain value.
Fig. 3 and Fig. 4 are the radio control circuit schematic diagrams, and wherein Fig. 3 is the central control circuit part in the radio control circuit, by central processing unit U
4Be connected in LCD L
CD1, battery supply U
7By power management chip U
3Be connected in central processing unit U respectively
4With LCD L
CD1, central processing unit U
4Also by membrane keyboard input interface J
1Link to each other with moisture density instrument keyboard.Its components and parts all can adopt the components and parts identical with Fig. 1.Fig. 4 is the remote-control communication circuit part in the radio control circuit, adopts a slice radio transmitting and receiving chip, and this chip is by interface J
1Link to each other with the central control circuit of Fig. 3.Radio transmitting and receiving chip can adopt the nRF401 monolithic.Adopt the bluetooth core technical design, comprised that in the chip of one 20 pin high-frequency emission, high frequency receive, PLL is synthetic, FSK modulation, FSK demodulation, and multichannel switches, and is the highest wireless data sending product of present integrated level.NRF401 adopts the strong FSK modulator approach of antijamming capability, frequency of operation is reliable and stable, peripheral cell is few, is convenient to design and produces, and is low in energy consumption, be suitable for the design of portable and hand-held product, owing to adopted low emissive power, height connects the design of sensitivity, satisfies wireless control requirement, need not occupancy permit, is that the ideal that present low-power wireless number passes is selected.
The antenna of this radio transmitting and receiving chip is made 25*15mm
2The square frame track in the circuit board, need not to connect in addition antenna.In nuclear moisture density instrument inside a nRF401 wireless data transmission module is set too, has realized wireless mutual communication thus.
The course of work:
With wired consistent, difference is the remote control part to the wireless remote control software and hardware substantially.With instrument communication the time, at first CS and POW-UP are put height, make wireless telecommunications partly enter normal operating conditions.Again TXEN is put height when needing the emission data, make it be in the wireless transmit state.When accepting data with the TXEN zero clearing, thereby allow to accept wireless data.CS and POW-UP should be put lowly when not doing communication, make the wireless telecommunications part also be in the dormancy state of repairing, save power consumption.
The present invention also can adopt computer or notebook computer to be connected by wired connection mode and instrument, and canned software is set, realize instrument is carried out long-distance remote control by computer, and remote measurement and distance-reading, and carry out the management of corresponding measurement data.Fig. 5 and Fig. 6 are computer software programs FB(flow block) of the present invention.
Claims (3)
1, a kind of remote measurement distance-reading surface type nuclear moisture density instrument comprises that γ one source location bar (1) and source bar (3) that handle (2) is housed on it all are fixed on the casing (4), it is characterized in that: gamma ray projector (5) is put source bar (3) bottom, the centre position of casing (4) bottom is fixed in neutron ray source (6), gamma ray detector (7), neutron ray detector (8) all places casing (4) bottom, the panel (9) that display screen and operation keyboard are housed places on casing (4) panel, the remote measuring and controlling handheld controller links to each other by the keyboard of interface with the moisture density instrument, and computer and printer link to each other with moisture density instrument keyboard by interface.
2, according to the described remote measurement distance-reading of claim 1 surface type nuclear moisture density instrument, it is characterized in that, in the remote measuring and controlling handheld controller by being forming of line control circuit that central processing unit is connected in the moisture density instrument by the keyboard input port, two continuous level transferring chip are connected in central processing unit respectively, LCD is connected in central processing unit, power supply is connected in central processing unit respectively by power management chip, level transferring chip, LCD also has the input/output terminal of two logical and not gates of connecting mutually to link to each other with central processing unit respectively.
3, according to the described remote measurement distance-reading of claim 1 surface type nuclear moisture density instrument, it is characterized in that the radio control circuit in the remote measuring and controlling handheld controller, comprise central control circuit and remote-control communication circuit, wherein central control circuit is connected in LCD by central processing unit, power supply is connected in central processing unit and LCD respectively by power management chip, and central processing unit links to each other with the moisture density instrument by the keyboard input interface; The remote-control communication circuit is connected in central control circuit by a slice radio transmitting and receiving chip by interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031132952A CN1191471C (en) | 2003-04-25 | 2003-04-25 | Telemetering remote-reading surface type nucleon moisture density meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031132952A CN1191471C (en) | 2003-04-25 | 2003-04-25 | Telemetering remote-reading surface type nucleon moisture density meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1444038A true CN1444038A (en) | 2003-09-24 |
| CN1191471C CN1191471C (en) | 2005-03-02 |
Family
ID=27814692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031132952A Expired - Fee Related CN1191471C (en) | 2003-04-25 | 2003-04-25 | Telemetering remote-reading surface type nucleon moisture density meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1191471C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9483907B2 (en) | 2007-08-17 | 2016-11-01 | Aristocrat Technologies Australia Pty Limited | Gaming system |
-
2003
- 2003-04-25 CN CNB031132952A patent/CN1191471C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9483907B2 (en) | 2007-08-17 | 2016-11-01 | Aristocrat Technologies Australia Pty Limited | Gaming system |
| US9846991B2 (en) | 2007-08-17 | 2017-12-19 | Aristocrat Technologies Australia Pty Limited | Gaming system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1191471C (en) | 2005-03-02 |
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