CN203479271U - Instant monitoring system for cross section of underground tunnel - Google Patents
Instant monitoring system for cross section of underground tunnel Download PDFInfo
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- CN203479271U CN203479271U CN201320237418.5U CN201320237418U CN203479271U CN 203479271 U CN203479271 U CN 203479271U CN 201320237418 U CN201320237418 U CN 201320237418U CN 203479271 U CN203479271 U CN 203479271U
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Abstract
An instant monitoring system for cross section of an underground tunnel is provided to avoid human from contacting with dangerous environment, with greatly increased measurement precision. The system comprises a PLC as a main controller, the PLC is connected with a stepper motor driver, the rotation of a stepper motor is controlled by the stepper motor driver, the stepper motor rotates and simultaneously drives a pulse type laser range finder, two high-speed counters in the PLC send out pulses of different frequencies, and finally the area of the cross section is instantly measured. An upper computer of the system can precisely and instantly display the area of the cross section, so as to bring important meanings to the study on the change rules of the cross section of the tunnel.
Description
Technical field
The present invention relates to mine safety field, is the high-precision drift section monitoring system in a kind of mine ventilation field.
Background technology
Due to the impact of the objective condition such as the tectonic structure of Mine Complicated and rock pressure [in mine, drift section is easy to produce distortion, and the scrambling due to distortion, impacts the distribution of mine roadway air quantity.It is all manual measurement that our drift section that uses of past is measured, and needs a large amount of human and material resources, wastes time and energy, and measures again inaccurately, has error.The important parameter that mine ventilation windage is calculated is not only in the variation of section, is also the important parameter of research strata behaviors rule.Be badly in need of a kind of tunnel of accurately measuring in the monitoring system of cross-sectional area in the same time not.
Summary of the invention
For above-mentioned situation, object of the present invention is to provide a kind of a large amount of human and material resources that do not need exactly, time saving and energy saving, can observe quickly and accurately again the system of drift section area and variation.It is characterized in that PLC connects stepper motor driver, stepper motor driver is controlled two-phase hybrid stepping motor, stepper motor drives pulse type laser stadimeter to rotate, and stadimeter is sent to PLC recording real time data, and PLC delivers to host computer by CP243-1 module the data that calculate.It can accurately measure the area of each time period, and even instantaneous area.By upper function, draw the Changing Pattern of drift section.
The present invention utilizes PLC as primary controller, first sets the pulsed frequency of No. 1 high-speed counter, is tentatively made as 6400/s, and the pulsed frequency of No. 2 high-speed counters is set to 3200/s.Model selection, be single speed continuous rotation pattern, then after configuration wizard completes, calling function piece PTOx/_MAN sends unlimited pulse, can change in real time like this in the process of transmitted.Counter is sent out the rotation that carrys out control step motor after pulse by stepper motor driver, stepper motor is selected two-phase hybrid stepping motor, and stepper motor stepping angle is elected four segmentation formulas as.Stepper motor rotation while sending first pulse, No. 2 high-speed counter transmitteds drive laser range finder to start range finding simultaneously, and the pulse counting equipment that is arranged on stepper motor also can recording impulse number.Stepper motor rotation when No. 1 high-speed counter sends second pulse, but not gating pulse formula stadimeter range finding, when sending the 3rd pulse, stadimeter is surveyed lower distance.The like 5,7,9 ... .1+2n during pulse, the distance of measuring is delivered in PLC, PLC calculates area by inner mathematics instruction, then by CP243-1 module, delivers to host computer simultaneously.0.125 second host computer of every mistake can show a numeral that represents cross-sectional area, and when drift section changes, host computer will receive the simulating signal from pressure transducer, and sends alerting signal.
This underworkings section instantaneous monitoring system is really accomplished instantaneous, accurately measures area, the area change situation of convenient observation drift section, and the most important people of avoiding contacts with the direct of insecure environments.
Accompanying drawing explanation
Aspect of the present utility model and other features mentioned above will describe in conjunction with relevant drawings hereinafter
Fig. 1 is the instantaneous detection system electrical schematic diagram of underworkings cross-sectional area
Fig. 2 is the instantaneous detection system structure flow chart of underworkings cross-sectional area
Fig. 3 is the instantaneous detection system software of underworkings cross-sectional area realization flow figure
Embodiment
In the instantaneous detection system of underworkings cross-sectional area, make zero button (22), electric motor starting button (23), motor stop button (24), electromechanical transducer switch (25), tellurometer switch (26) connects respectively by the input end in PLC (18), and they will connect DC24V (28) jointly. electromechanical transducer (35) is controlled by sensing switch (25), and mining pulse type laser stadimeter (38) is controlled by stadimeter switch (26).Electromechanical transducer (35) will on draw 240 Ω then by 24V Switching Power Supply (37), to be powered.Mine-used I. S intelligent pressure sensor (32) is communicated with by DC10V transmitter (31) and analog input point M (29), A+ (30).SH-2024 stepper motor driver (1) is powered by DC24V Switching Power Supply, Switching Power Supply is connected with Vcc (2) end, driver is by the operation of A+ (4), A-(5), B+ (6), (7) four interface control step motors of B-. and common anode end OPTO (8) receives DC5V (15) anode, and Vcc-(3) receives negative electrode.When being connected with driver module, PLC driver module level can not be dragged down when PLC output low level, therefore in EN-(42), drop-down 200 Ω of DIR-(13) (14), DIR-(13) receives Q0.0 (19) simultaneously, DIR (9), it is upper that the drop-down 3K Ω of CP (11) (17) receives 24VDC (16), FREE (10) ground connection, and CP-(12) receives on Q0.2 (20).PLC connects driver by this part and then indirectly controls two-phase Hybrid stepping motor (40).Laser range finder is by 24V Switching Power Supply (37) power supply, and PLC controls the folding of relay switch (39) by Q0.7, because stepper motor is chosen as two-phase four segmentation formulas, so its stepping angle is 0.45 degree.The motor acceleration time of No. 1 high-speed counter setting and deceleration time are all that 500ms. is when accelerating to target velocity, stepper motor rotation when No. 1 counter sends first pulse.Simultaneously, No. 2 counters send first pulse-on relay switch and drive stadimeter range finding, when No. 1 high-speed counter rotation 0.9 is spent, sent after two pulses, now No. 2 counters have sent a pulse, the distance now recording is that a. is when No. 1 high-speed counter sends the 3rd pulse, No. 2 counter sends second pulse, when No. 1 counter is prepared to send the 5th pulse by the time, when namely No. 2 counters are prepared to send the 3rd pulse, record distance for b, measured to data deliver to PLC, use mathematical formulae S=1/2ab θ, the θ is here 0.9 °.Every 0.125s portion, having an area like this calculates.PLC connects host computer (33) by communication module CP243-1 (34) simultaneously, and host computer is connected to this system by Industrial Ethernet and then carries out real-time data monitoring.
In the instantaneous detection system Structure and Process of underworkings cross-sectional area, PLC (18) can send pulse and be sent to SH-2024 stepper motor driver (1), and then control two-phase hybrid stepping motor running (40), now mining pulse type laser stadimeter (38) has received pulse that the another one counter of PLC sends and next plays rotation in the drive of stepper motor.Intrinsic safety type intelligent pressure sensor (32) can be by receiving that simulating signal passes to PLC, and the time is recorded in PLC system clock instruction meeting, so more contributes to the Changing Pattern of host computer (33) research section.
In the instantaneous detection system software of underworkings cross-sectional area realization flow, press beginning (44) button of system, PLC prepares initiation parameter MB0 (45), driver enables to control (46) end and carries out initialization, and PLC enables delivery outlet Q0.6 (47) by motor and carries out the control to stepper motor.Before by the operation of PLC control step motor, to check the state (48) that whether makes zero to PLC, if (53), press the button that makes zero, execution is made zero (49) and PLC comes back to the state after initialization, if system itself just at the state of making zero, is carried out no (54), non-return-to-zero.Then system sensor can be inputted PLC signal, if motor and stadimeter are all normal, carrying out actuator button, whether to press that (50) select be (56), stepper motor operation (51).If the normal stadimeter of stepper motor is undesired, actuator button is carried out no (13) measured instrument and is detected.Then carrying out is that (58), system are normally moved.If stepper motor is undesired, stadimeter is normal, and stadimeter is carried out no (57).System comes back to the state after initialization, after system further detects, can normally move.
This monitoring system is really accomplished instantaneous, accurately measures area, observes easily the most important people of avoiding of situation of change of drift section contact with the direct of insecure environments.
Claims (2)
1. a underworkings section instantaneous monitoring system, it is characterized in that PLC connects stepper motor driver, stepper motor driver is controlled two-phase hybrid stepping motor, stepper motor drives pulse type laser stadimeter to rotate, stadimeter is sent to PLC recording real time data, and PLC delivers to host computer by CP243-1 module the data that calculate.
2. underworkings section instantaneous monitoring system according to claim 1, it is characterized in that PLC sends two kinds of pulses that frequency is different by two high-speed counters of inside, the pulse control step motor rotation that No. 1 counter sends, the pulse gating pulse stadimeter range finding that No. 2 counters send, delivers to the distance of measurement in PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320237418.5U CN203479271U (en) | 2013-05-06 | 2013-05-06 | Instant monitoring system for cross section of underground tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320237418.5U CN203479271U (en) | 2013-05-06 | 2013-05-06 | Instant monitoring system for cross section of underground tunnel |
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| Publication Number | Publication Date |
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| CN203479271U true CN203479271U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320237418.5U Expired - Fee Related CN203479271U (en) | 2013-05-06 | 2013-05-06 | Instant monitoring system for cross section of underground tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455211A (en) * | 2019-08-19 | 2019-11-15 | 云南航天工程物探检测股份有限公司 | A kind of automatic monitoring measurement method based on laser section ranging |
-
2013
- 2013-05-06 CN CN201320237418.5U patent/CN203479271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455211A (en) * | 2019-08-19 | 2019-11-15 | 云南航天工程物探检测股份有限公司 | A kind of automatic monitoring measurement method based on laser section ranging |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |