CN103791849A - Monitoring system and measuring method for laser intelligent response type tunnel convergence - Google Patents
Monitoring system and measuring method for laser intelligent response type tunnel convergence Download PDFInfo
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Abstract
The invention discloses a monitoring system and measuring method for laser intelligent response type tunnel convergence. The method comprises the following steps that firstly, a laser intelligent response type tunnel convergence monitoring instrument fixing support is manufactured to enable the laser direction of a laser range finder to align with the other side wall of a tunnel, and a monitoring instrument is made to be in a horizontal state by observing the angle indication of a two-dimensional inclinometer on the monitoring instrument; secondly, the number of intelligent reflection inductors is determined according to the number of measuring points needing to be measured, and the intelligent reflection inductors are fixed at the positions needing to be measured; thirdly, the initial positions of the measuring points are predefined; fourthly, working measuring is carried out. According to the monitoring system and measuring method, the special intelligent reflection inductors, a measuring instrument with a microprocessor and a high-precision rotation mechanism are adopted, one measuring device is enough to finish automatic measuring on the size and changing data of crown settlement and horizontal convergence quantity of multiple measuring points in a certain area at a time, and the measuring result is accurate; timing and period monitoring can be automatically finished by setting the system monitoring period, and the measuring data can be automatically stored.
Description
Technical field
The invention belongs to Tunnel Engineering field of measuring technique, be specifically related to a kind of intelligent laser and reply formula convergence monitoring system and measuring method.
Background technology
It is must survey project in shotcrete bolt construction method construction that tunnel convergence measures.After tunnel excavation, surrouding rock stress will redistribute.In digging process, peripheral rock and supporting will produce distortion, and this distortion is that country rock and supporting mechanical behavior change the most directly reflection.In the time that surrouding rock stress tends to balance, peripheral distortion tends towards stability, and this change procedure is called " convergence ".The convergence of tunnel inside surface can record by special surveying instrument.Observe by periphery displacement, can measure size and the development of vault sinking and horizontal convergence amount, thereby whether stable, whether rationally also can differentiate support work state and construction method simultaneously if can differentiate tunnel surrounding.
Tunnel cross-section measurement is one of important procedure of constructing tunnel.In tunnel cross-section measurement, mainly contain at present following several mode:
1, Ba Saite collective system: this system is arranged on section surrounding to be measured by multiple bar elements (long with short be combined into a pair of bar element) head and the tail are mutually hinged, form one and measure ring, the built-in a kind of special high precision electrolysis matter obliquity sensor of bar element, a pin joint of every pair of length arm fixes by fixture and tunnel wall, and another pin joint floats.In the time that tunnel wall deforms, must make the several point of fixity in distorted area produce (space) displacement, also drive relevant length arm activity, be that length arm generation angle changes, at this moment be arranged on respectively length, obliquity sensor on galianconism just can be measured this small angle and change, if tunnel wall many places deform, the distortion of every place is that stack is even to the effect of length arm, the variation that is obliquity sensor perception is total variation, just can calculate the displacement of each point of fixity according to the length of change of pitch angle and each corresponding length arm, refer again to the coordinate in each point of fixity original position, just can obtain the physical location of a point of fixity after variation, as long as there is abundant point of fixity, the line of each each point of fixity of moment just can be similar to the outline line that represents tunnel wall, Bassett collective system is a kind of high precision, the system of automatic monitoring tunnel deformation.The demonstration of whole system from automatic data collection to result of calculation realizes computerize completely.But the cost of this system is higher, monitoring point is installed also very complicated.
2, adopt convergence gauge to measure empty convergence in tunnel: to be characterized in completing the measurement of the deflection to tunnel wall point-to-point transmission horizontal range, the measurement of vault sinking and heave displacement etc., this mensuration precision is reliable, but this kind of method exists measurement data little, the shortcomings such as operation easier is large, labour intensity is high, need on platform truck, work for large cross-section tunnel, operation is inconvenience relatively.
3, adopt electronic total station to measure: the method is buried retro-reflective targets underground as measuring point on the xsect of cavern, between every two measuring points, become survey line, set up electronic total station can observe measuring point place, measure the three-dimensional coordinate of measuring point, calculate the three-dimensional distance between every two measuring points according to range formula, the difference of the three-dimensional distance value not recording the same period time and the three-dimensional distance value recording is for the first time the convergency value of survey line between this two measuring point.When this method is measured without approach measuring point at every turn, electronic total station can freely be arranged on the place that can observe measuring point, without forced centering, measurement data is record automatically, can adopt easily computing machine to carry out aftertreatment, realize fast monitored, rapid feedback with guiding construction, but also exist instrument and equipment costliness, need periodic measurement, and can not obtain real-time delta data.
4, adopt laser distance measurement method: laser has the advantages such as good directionality, distance accuracy is high, ranging is far away, antijamming capability is strong, adopt the mode of laser ranging to carry out tunnel survey, in tunnel cross-section measurement, obtain in recent years applying more and more widely.
By inquiry available data, what adopt at tunnel cross-section laser measurement at present is main still for the measurement of the single section convergency value in tunnel, cannot reflect situation about restraining in a certain section of region in tunnel comprehensively.In addition existing laser measuring equipment conventionally adopts the direct illuminating method of laser or the methods such as reflecting prism, reflecting piece is installed at measured point place, and the direct illuminating method of laser is because tested surface material is different, and reflecting effect is bad, larger on measuring accuracy impact; The methods such as reflecting prism, reflecting piece of installing can only passive reception laser beam, after after the reflecting prism of installing, reflecting piece are along with tunnel convergence distortion, original position changes, general common laser range finder cannot Automatic-searching reflecting prism, position after reflecting piece distortion, forbidden precise decreasing thereby cause to measure.
In a word,, all also there is the defect of self separately in above four kinds of measuring methods to tunnel convergence, is difficult to really realize the requirement of accuracy, authenticity, real-time and convenience to tunnel convergence DATA REASONING.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, design and be a kind ofly applicable to automatic measuring in the engineering construction such as tunnel, foundation ditch and measure that vault sinks and size and the changing value of horizontal convergence amount, whether thereby it is stable to differentiate tunnel surrounding, also whether rationally can differentiate support work state and construction method, for safety for tunnel engineering monitoring provides a kind of complete tunnel multiple spot convergence monitoring Intelligent Laser measuring system simultaneously.
Intelligent laser of the present invention is replied formula convergence monitoring system, comprising: intelligent laser is replied formula convergence monitoring instrument and intelligence reflection inductor.
Described intelligent laser is replied formula convergence monitoring instrument and is comprised: cabinet, control system, wireless receiver antenna, steering wheel A, rotation platform, measurement support, steering wheel B, gage beam, laser range finder and two-dimentional inclinator.Convergence monitoring instrument is fixedly installed on a side wall in tunnel, wherein laser range finder and two-dimentional inclinator are arranged on gage beam, gage beam is driven by steering wheel B, the axial direction of the laser beam axis that can send along laser range finder does 180 degree to-and-fro movements, gage beam and steering wheel B are arranged on and measure on support, measure support and be fixed on rotation platform, this platform is shaft-driven by rotation by steering wheel A, can do along tunnel cross-section axis ± 90 degree to-and-fro movements.Steering wheel A, control system etc. are all installed in cabinet, control system with LCD touch-screen be arranged on cabinet surface handled easily.(referring to Fig. 1).
Described control system comprises: processor module
,measurement module, servo driving module, power module, wireless communication module have been expanded (referring to Fig. 6) such as LCD touch-screens simultaneously.Power module, except giving the each module of control system and the power supply of LCD touch-screen, is also responsible for providing power supply to equipment such as steering wheel A, B, laser range finder and two-dimentional inclinators.Processor module
withbetween measurement module, servo driving module, wireless communication module and LCD touch-screen; Between measurement module and laser range finder and two-dimentional inclinator; Between servo driving module and steering wheel A, B, be connected and all adopt bidirectional data exchange form.Control system is except LCD touch-screen is arranged on cabinet surface, and other parts are installed in cabinet inside.Control system is the core of whole system, and the control, tested point data of being mainly responsible for steering wheel is calculated, the reading and preservation etc. of measurement data.Control system by with the coordination that cooperatively interacts of intelligence reflection inductor, in conjunction with the angle of the accurate designation system X of inclinator, Y, drive the rotation of industrial steering wheel control rotation platform and gage beam and stop, thereby guarantee the accurate location of measuring system measured angular, and measure by controlling laser range finder.
Described steering wheel comprises steering wheel A, B, and steering wheel A drives rotation platform along do ± 90 degree crankmotions of tunnel cross-section by turning axle; Gage beam is driven by steering wheel B, and the axial direction of the laser beam axis that can send along laser range finder does 180 degree to-and-fro movements, and while it is pointed out that each measurement, the movement position of rotation platform and gage beam is that control system is calculated and deduced according to profile data.
The features such as the steering wheel that native system uses is the high-power industrial steering wheel of existing matured product on market, and steering wheel adopts alloy gear, aluminium alloy reducer casing, heavy-duty motor, has high moment of torsion output, simple installation, sturdy and durable.
Described intelligence reflection inductor comprises: low-power scm system, battery system, photoreceiver, prism reflector, wireless launcher and fixed head.Fixed head plane upward, be fixedly mounted on the position (tunnel crown wall or abutment wall) that need to measure in tunnel, wherein power consumption Single Chip Microcomputer (SCM) system and battery system are placed in the can of a sealing, can is fixed on fixed head below together with wireless launcher, photoreceiver and prism reflector are fixed on can below by lower hanging bracket, should keep intervisibility and have no occluder (referring to figure E) between photoreceiver and prism reflector and convergence monitoring instrument.It acts on except reflection lasering beam, an important effect is in the time that laser beam irradiation reflects on inductor to intelligence, it can send registration signal from trend convergence measurement instrument by wireless launcher, thereby stop the rotation of rotation platform and the gage beam of convergence measurement instrument, guarantee that convergence measurement instrument starts in correct position to measure, in order to prevent the misoperation under intelligence reflection inductor is interfered situation of convergence measurement instrument, every intelligence reflection inductor has the inherent address of oneself, whether intelligent laser is replied formula convergence monitoring instrument can be consistent with the intelligence reflection inductor address receiving by intelligence reflection inductor address automatically more to be measured, whether differentiate is undesired signal, assurance system is normally worked.Section quantity and measuring point that intelligence reflection inductor quantity should be measured are as required selected.
Intelligent laser of the present invention is replied the measuring method of formula convergence monitoring system, and its step is as follows:
(1) make intelligent laser and reply formula convergence monitoring instrument hold-down support, bearing is fixed on tunnel one side wall, can determine according to actual conditions apart from floor level, intelligent laser is replied formula convergence monitoring instrument and is arranged on hold-down support, make laser range finder laser direction aim at tunnel opposite side abutment wall, by two-dimentional inclinator angle indication on observation monitor, make monitor in horizontality; And record origin position coordinate;
(2) according to field condition, the measuring point number of measuring is as required determined the quantity of intelligence reflection inductor, intelligence is reflected to inductor and be fixed on and need the position measured, it is substantially vertical that the prism reflector face that makes intelligence reflection inductor and intelligent laser are replied on formula convergence monitoring instrument laser range finder laser direction line;
(3) measurement point initial position predefine: intelligence is reflected to inductor cell switch and open, start intelligent laser and reply formula convergence monitoring instrument, enter predefine program, by adjusting the angle of rotation platform and gage beam, laser range finder laser direction is aimed at respectively successively to the prism reflector of mounted each intelligence reflection inductor, when the photoreceiver of intelligence reflection inductor receives after laser beam, intelligence reflection inductor can be launched registration signal by wireless launcher and inform that intelligent laser replys formula convergence monitoring instrument, setting program is by the rotation of automatically stop the rotation platform and gage beam, predefine program preserve angle between rotation platform now and intelligence reflection inductor (
,
), angle between gage beam and intelligence reflection inductor (
,
) and laser range finder to the distance of intelligence reflection inductor (
,
) etc., and reference position using these angle-datas as next measurement point, intelligent laser is replied formula convergence monitoring instrument and will be calculated by these angle-datas and range data, draw (the X of this point, Y, Z) coordinate data, as passing judgment on the raw data and the foundation that whether restrain,
(4) work measurement: press after automatic measurement button, intelligent laser is replied the control system of formula convergence monitoring instrument will be according to being pre-stored in convergence monitoring instrument the start angle position data corresponding with each measuring point (intelligence reflection inductor), control the rotational angle of rotation platform and gage beam, successively the laser beam of laser range finder is reflected to inductor prism reflector to quasi intelligent, if now laser beam is just in time aimed at the prism reflector of intelligence reflection inductor to be measured, this intelligence reflection inductor will send registration signal by wireless launcher to convergence measurement instrument immediately, intelligent laser is replied formula convergence monitoring instrument and is received after this signal, automatically measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously,
If now because convergence or other reasons occur in tunnel, cause laser beam to fail to aim at the prism reflector of intelligence reflection inductor to be measured, control system will be carried out automated location correction, its method is to drive rotation platform and gage beam to carry out OBL spiral scan, so that laser beam is aimed to this intelligence reflection inductor, and (it is that program is predefined that side-play amount is moved in its spiral scan, be used for correcting the displacement correction of horizontal angle and vertical angle), until laser beam is just in time aimed at intelligence reflection inductor prism reflector to be measured, now this intelligence reflection inductor will send registration signal from trend convergence measurement instrument, convergence measurement instrument receives after this registration signal, by the rotation correction of automatically stop the rotation platform and gage beam, measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously.
Intelligent laser is replied formula convergence monitoring system can be by arranging the system monitoring cycle, automatically complete timing and cycle monitoring, and in the storer that being kept at of surveyed data integrity carried, also have the automatic Check of Monitoring Data, abnormal data automatic rejection, number of non-compliances are according to automatically resurveying and convergent deformation automatic analysis, forecast and warning function.Also can download data to computing machine by communication interface, carry out analytical calculation by other software.
The advantage that intelligent laser of the present invention is replied formula convergence monitoring system is, this system is owing to having adopted the distinctive intelligence reflection of the present invention inductor, measuring instrument with microprocessor and high precision rotating mechanism, only need a measuring equipment can once complete that multi-measuring point vault in a certain region, automatic measurement tunnel sinks and size and the delta data of horizontal convergence amount, measurement result is accurate, can be by the system monitoring cycle be set, automatically complete timing and cycle monitoring, and energy storing data automatically measurement data, there is the automatic Check of Monitoring Data, abnormal data automatic rejection, number of non-compliances is according to automatically resurveying and convergent deformation automatic analysis, forecast and warning function.Also can download data to computing machine by communication interface, carry out analytical calculation by other software.
By inquiry available data, what adopt at tunnel cross-section laser measurement at present is main still for the measurement of the single section convergency value in tunnel, cannot reflect situation about restraining in a certain section of region in tunnel comprehensively.In addition existing laser measuring equipment conventionally adopts the direct illuminating method of laser or the methods such as reflecting prism, reflecting piece is installed at measured point place, and the direct illuminating method of laser is because tested surface material is different, and reflecting effect is bad, larger on measuring accuracy impact; The methods such as reflecting prism, reflecting piece of installing can only passive reception laser beam, after after the reflecting prism of installing, reflecting piece are along with tunnel convergence distortion, original position changes, general common laser range finder cannot Automatic-searching reflecting prism, position after reflecting piece distortion, forbidden precise decreasing thereby cause to measure.
The invention has proposed the concept of intelligent reflection inductor and automated location correction, by well-designed intelligent reflection inductor, measuring instrument with microprocessor and two-dimension high-precision rotation measuring mechanism cooperatively interact, only need a measuring equipment can once complete that multi-measuring point vault in region, a certain section of automatic measurement tunnel sinks and size and the delta data of horizontal convergence amount, reflect inductor and intelligent laser is replied mutually replying of formula convergence monitoring instrument by intellectuality, automated location calibration and debugging functions are realized, guarantee that measurement result accurately and reliably, solve the defect that existing tunnel convergence measurement method exists, really realize the accuracy to tunnel convergence DATA REASONING, authenticity, the requirement of real-time and convenience.
The present invention adopts the accurate sign of combined with intelligentization reflection inductor induction, coordinate Machine Design cleverly, by complete the angle control of steering wheel and the calculating to profile data to be measured with the control system of microprocessor, guarantee that measuring system is to measuring section and azimuthal accurate location and measurement, technology maturation, method is reliable, practical.
Compare with existing laser measuring equipment with general measuring method, the present invention has that intelligent degree is high, measuring speed is fast, once can complete multi-measuring point cross section deformation and measure, can carry out convergence monitoring for a long time or temporarily, automaticity is high, manual intervention is little, the advantages such as labour intensity is low, can meet tunnel survey survey line many, and the frequency is high, time is long, the requirement that measurement data is many.In addition, can also be used for the monitoring of bridge static deflection, dump (generating plant) cubing, the fields such as power transmission line height detection, are with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is that laser is replied intelligent tunnel convergence detection instrument structural representation;
Fig. 2 is tunnel many measured angular of benchmark section schematic diagram;
Fig. 3 is a certain region, tunnel multi-measuring point section survey schematic diagram;
Fig. 4 is multi-measuring point section survey method schematic diagram;
Fig. 5 is intelligence reflection sensor structure schematic diagram;
Fig. 6 is the each module controls block diagram of control system.
Embodiment
Shown in root Ju Fig. 1-Fig. 6, a kind of intelligent laser is replied formula convergence monitoring system, comprising: intelligent laser is replied formula convergence monitoring instrument and intelligence reflection inductor.
Described intelligent laser is replied formula convergence monitoring instrument and is comprised: cabinet 1, control system 2, wireless receiver antenna 3, steering wheel A4, rotation platform 5, measurement support 6, steering wheel B7, gage beam 8, laser range finder 9 and two-dimentional inclinator 10.Convergence monitoring instrument is fixedly installed on a side wall in tunnel, wherein laser range finder 9 and two-dimentional inclinator 10 are arranged on gage beam 8, gage beam 8 is driven by steering wheel B7, the axial direction of the laser beam axis that can send along laser range finder 9 does 180 degree angle to-and-fro movements, gage beam 8 and steering wheel B7 are arranged on and measure on support 6, measure support 6 and be fixed on rotation platform 5, this platform is shaft-driven by rotation by steering wheel A, can the to-and-fro movement of do along tunnel cross-section axis ± an angle of 90 degrees.Steering wheel A4, control system 2 etc. are all installed in cabinet, control system 2 with LCD touch-screen be arranged on cabinet surface handled easily.(referring to Fig. 1).
Described control system 2 comprises: processor module
,measurement module, servo driving module, power module, wireless communication module have been expanded (referring to Fig. 6) such as LCD touch-screens simultaneously.Power module, except giving the each module of control system and the power supply of LCD touch-screen, is also responsible for providing power supply to equipment such as steering wheel A, B, laser range finder and two-dimentional inclinators.Processor module
withbetween measurement module, servo driving module, wireless communication module and LCD touch-screen; Between measurement module and laser range finder and two-dimentional inclinator; Between servo driving module and steering wheel A, B, be connected and all adopt bidirectional data exchange form.Control system is except LCD touch-screen is arranged on cabinet surface, and other parts are installed in cabinet inside.Control system is the core of whole system, and the control, tested point data of being mainly responsible for steering wheel is calculated, the reading and preservation etc. of measurement data.Control system by with the coordination that cooperatively interacts of intelligence reflection inductor, in conjunction with the angle of the accurate designation system X of inclinator, Y, drive the rotation of industrial steering wheel control rotation platform and gage beam and stop, thereby guarantee the accurate location of measuring system measured angular, and measure by controlling laser range finder.
Described steering wheel comprises steering wheel A, B, and steering wheel A drives rotation platform along do ± 90 degree to-and-fro movements of tunnel cross-section by turning axle; Gage beam is driven by steering wheel B, and the axial direction of the laser beam axis that can send along laser range finder does 180 degree to-and-fro movements, and while it is pointed out that each measurement, the movement position of rotation platform and gage beam is that control system is calculated and deduced according to profile data.
The features such as the steering wheel that native system uses is the high-power industrial steering wheel of existing matured product on market, and steering wheel adopts alloy gear, aluminium alloy reducer casing, heavy-duty motor, has high moment of torsion output, simple installation, sturdy and durable.
Described intelligence reflection inductor comprises: low-power scm system 11, battery system 12, photoreceiver 13, prism reflector 14, wireless launcher 15 and fixed head 16.Fixed head 16 planes upward, be fixedly mounted on the position (tunnel crown wall or abutment wall) that need to measure in tunnel, wherein power consumption Single Chip Microcomputer (SCM) system 11 and battery system 12 are placed in the can of a sealing, can is fixed on fixed head below together with wireless launcher 15, photoreceiver 13 and prism reflector 14 are fixed on can below by lower hanging bracket, should keep intervisibility and have no occluder (referring to Fig. 5) between photoreceiver 13 and prism reflector 14 and convergence monitoring instrument.It acts on except reflection lasering beam, an important effect is in the time that laser beam irradiation reflects on inductor to intelligence, it can send registration signal from trend convergence measurement instrument by wireless launcher, thereby stop the rotation of rotation platform and the gage beam of convergence measurement instrument, guarantee that convergence measurement instrument starts in correct position to measure, in order to prevent the misoperation under intelligence reflection inductor is interfered situation of convergence measurement instrument, every intelligence reflection inductor has the inherent address of oneself, whether intelligent laser is replied formula convergence monitoring instrument can be consistent with the intelligence reflection inductor address receiving by intelligence reflection inductor address automatically more to be measured, whether differentiate is undesired signal, assurance system is normally worked.Section quantity and measuring point that intelligence reflection inductor quantity should be measured are as required selected.
Intelligent laser of the present invention is replied the measuring method of formula convergence monitoring system: its step is as follows:
(1) make intelligent laser and reply formula convergence monitoring instrument hold-down support, bearing is fixed on tunnel one side wall, can determine according to actual conditions apart from floor level, intelligent laser is replied formula convergence monitoring instrument and is arranged on hold-down support, make laser range finder laser direction aim at tunnel opposite side abutment wall, by two-dimentional inclinator angle indication on observation monitor, make monitor in horizontality; And record origin position coordinate;
(2) according to field condition, the measuring point number of measuring is as required determined the quantity of intelligence reflection inductor, intelligence is reflected to inductor and be fixed on and need the position measured, it is substantially vertical that the prism reflector face that makes intelligence reflection inductor and intelligent laser are replied on formula convergence monitoring instrument laser range finder laser direction line;
(3) measurement point initial position predefine: intelligence is reflected to inductor cell switch and open, start intelligent laser and reply formula convergence monitoring instrument, enter predefine program, by adjusting the angle of rotation platform and gage beam, laser range finder laser direction is aimed at respectively successively to the prism reflector of mounted each intelligence reflection inductor, when the photoreceiver of intelligence reflection inductor receives after laser beam, intelligence reflection inductor can be launched registration signal by wireless launcher and inform that intelligent laser replys formula convergence monitoring instrument, setting program is by the rotation of automatically stop the rotation platform and gage beam, predefine program preserve angle between rotation platform now and intelligence reflection inductor (
,
), angle between gage beam and intelligence reflection inductor (
,
) and laser range finder to the distance of intelligence reflection inductor (
,
) etc., and reference position using these angle-datas as next measurement point, intelligent laser is replied formula convergence monitoring instrument and will be calculated by these angle-datas and range data, draw (the X of this point, Y, Z) coordinate data, as passing judgment on the raw data and the foundation that whether restrain,
(4) work measurement: press after automatic measurement button, intelligent laser is replied the control system of formula convergence monitoring instrument will be according to being pre-stored in convergence monitoring instrument the start angle position data corresponding with each measuring point (intelligence reflection inductor), control the rotational angle of rotation platform and gage beam, successively the laser beam of laser range finder is reflected to inductor prism reflector to quasi intelligent, if now laser beam is just in time aimed at the prism reflector of intelligence reflection inductor to be measured, this intelligence reflection inductor will send registration signal by wireless launcher to convergence measurement instrument immediately, intelligent laser is replied formula convergence monitoring instrument and is received after this signal, automatically measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously,
If now because convergence or other reasons occur in tunnel, cause laser beam to fail to aim at the prism reflector of intelligence reflection inductor to be measured, control system will be carried out automated location correction, its method is to drive rotation platform and gage beam to carry out OBL spiral scan, so that laser beam is aimed to this intelligence reflection inductor, and (it is that program is predefined that side-play amount is moved in its spiral scan, be used for correcting the displacement correction of horizontal angle and vertical angle), until laser beam is just in time aimed at intelligence reflection inductor prism reflector to be measured, now this intelligence reflection inductor will send registration signal from trend convergence measurement instrument, convergence measurement instrument receives after this registration signal, by the rotation correction of automatically stop the rotation platform and gage beam, measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously.
Be example by measuring N intelligence reflection inductor below, automatic measuring process is described, while supposing premeasuring, intelligent laser is replied formula convergence monitoring instrument and is intelligently reflected the measured angular that inductor is corresponding and be with N
,
, laser range finder to the distance of N intelligence reflection inductor is
.
After measurement starts, intelligent laser is replied the control system of formula convergence monitoring instrument by the rotation of rotation platform axis is corresponding to N intelligence reflection inductor by steering wheel A
, meanwhile, under steering wheel B drives, gage beam axial location arrives automatic rotation
direction, laser range finder sends prediction laser beam, if now laser beam is just in time aimed at intelligence reflection inductor to be measured, this intelligence reflection inductor will send registration signal to convergence measurement instrument, and intelligent laser is replied formula convergence monitoring instrument and now measured the air line distance of laser range finder apart from this intelligence reflection inductor
, if now due to tunnel convergence or other reasons, cause prediction laser beam to fail to aim at intelligence reflection inductor to be measured, control system will be carried out automated location correction, its method is to drive rotation platform and gage beam to carry out OBL spiral scan to will predict that laser beam aims at this intelligence and reflect inductor (it moves side-play amount is predefined, be used for correcting the displacement of horizontal angle and vertical angle), until prediction laser beam is just in time aimed at intelligence reflection inductor to be measured, now this intelligence reflection inductor will send registration signal to convergence measurement instrument, convergence measurement instrument receives after registration signal, by the rotation correction of automatically stop the rotation platform and gage beam, measure the air line distance of laser range finder apart from this intelligence reflection inductor
, and obtain by two-dimentional inclinator that this is stylish
,
, preserve
=
,
=
as the measurement initial angle of measuring N intelligence reflection inductor next time.
According to existing
,
,
, with reference to figure 2, Fig. 3, Fig. 4, can calculate N intelligence reflection inductor by sine
coordinate figure is below computing formula:
Claims (6)
1. intelligent laser is replied a formula convergence monitoring system, it is characterized in that: comprise that intelligent laser is replied formula convergence monitoring instrument and intelligence reflects inductor.
2. a Ju right wants the intelligent laser described in 1 to reply formula convergence monitoring system, it is characterized in that: described intelligent laser is replied formula convergence monitoring instrument and comprised: cabinet (1), control system (2), wireless receiver antenna (3), steering wheel A (4), rotation platform (5), measure support (6), steering wheel B (7), gage beam (8), laser range finder (9) and two-dimentional inclinator (10), convergence monitoring instrument is fixedly installed on a side wall in tunnel, wherein laser range finder (9) and two-dimentional inclinator (10) are arranged on gage beam (8), gage beam (8) is by steering wheel B(7) drive, the axial direction of the laser beam axis that can send along laser range finder (9) does 180 degree to-and-fro movements, gage beam (8) and steering wheel B(7) be arranged on and measure on support (6), measuring support (6) is fixed on rotation platform (5), this platform is shaft-driven by rotation by steering wheel A, can do along tunnel cross-section axis ± 90 degree to-and-fro movements, steering wheel A(4), control system (2) etc. is all installed in cabinet, control system (2) with LCD touch-screen be arranged on cabinet surface handled easily.
3. a Ju right wants the intelligent laser described in 1 to reply formula convergence monitoring system, it is characterized in that: described intelligence reflection inductor, comprising: low-power scm system (11), battery system (12), photoreceiver (13), prism reflector (14), wireless launcher (15) and fixed head (16); Fixed head (16) plane upward, be fixedly mounted on the position (tunnel crown wall or abutment wall) that need to measure in tunnel, wherein power consumption Single Chip Microcomputer (SCM) system (11) and battery system (12) are placed in the can of a sealing, can is fixed on fixed head below together with wireless launcher (15), photoreceiver (13) and prism reflector (14) are fixed on can below by lower hanging bracket, between photoreceiver (13) and prism reflector (14) and convergence monitoring instrument, should keep intervisibility and have no occluder; Intelligence reflection inductor and intelligent laser are replied between formula convergence monitoring instrument and have been replied the accurate contraposition to each monitoring point by wireless interactive, thereby reach the Measurement accuracy to each monitoring point convergency value.
4. a Ju right wants the intelligent laser described in 2 to reply formula convergence monitoring system, it is characterized in that: described control system (2) comprising: processor module
,measurement module, servo driving module, power module, wireless communication module have been expanded LCD touch-screen simultaneously; Power module, except giving the each module of control system and the power supply of LCD touch-screen, is also responsible for providing power supply to equipment such as steering wheel A, B, laser range finder and two-dimentional inclinators; Processor module
withbetween measurement module, servo driving module, wireless communication module and LCD touch-screen; Between measurement module and laser range finder and two-dimentional inclinator; Between servo driving module and steering wheel A, B, be connected and all adopt bidirectional data exchange form; Control system is except LCD touch-screen is arranged on cabinet surface, and other parts are installed in cabinet inside; Control system is the core of whole system, and the control, tested point data of being mainly responsible for steering wheel is calculated, the reading and preservation etc. of measurement data; Control system by with the coordination that cooperatively interacts of intelligence reflection inductor, in conjunction with the angle of the accurate designation system X of inclinator, Y, drive the rotation of industrial steering wheel control rotation platform and gage beam and stop, thereby guarantee the accurate location of measuring system measured angular, and measure by controlling laser range finder.
5. a Ju right wants the intelligent laser described in 2 to reply formula convergence monitoring system, it is characterized in that: described steering wheel comprises steering wheel A, B, and steering wheel A drives rotation platform along do ± 90 degree to-and-fro movements of tunnel cross-section by turning axle; Gage beam is driven by steering wheel B, and the axial direction of the laser beam axis that can send along laser range finder does 180 degree to-and-fro movements.
6. intelligent laser is replied a measuring method for formula convergence monitoring system, it is characterized in that: its step is as follows:
(1) make intelligent laser and reply formula convergence monitoring instrument hold-down support, bearing is fixed on tunnel one side wall, can determine according to actual conditions apart from floor level, intelligent laser is replied formula convergence monitoring instrument and is arranged on hold-down support, make laser range finder laser direction aim at tunnel opposite side abutment wall, by two-dimentional inclinator angle indication on observation monitor, make monitor in horizontality; And record origin position coordinate;
(2) according to field condition, the measuring point number of measuring is as required determined the quantity of intelligence reflection inductor, intelligence is reflected to inductor and be fixed on and need the position measured, it is substantially vertical that the prism reflector face that makes intelligence reflection inductor and intelligent laser are replied on formula convergence monitoring instrument laser range finder laser direction line;
(3) measurement point initial position predefine: intelligence is reflected to inductor cell switch and open, start intelligent laser and reply formula convergence monitoring instrument, enter predefine program, by adjusting the angle of rotation platform and gage beam, laser range finder laser direction is aimed at respectively successively to the prism reflector of mounted each intelligence reflection inductor, when the photoreceiver of intelligence reflection inductor receives after laser beam, intelligence reflection inductor can be launched registration signal by wireless launcher and inform that intelligent laser replys formula convergence monitoring instrument, setting program is by the rotation of automatically stop the rotation platform and gage beam, predefine program preserve angle between rotation platform now and intelligence reflection inductor (
,
), angle between gage beam and intelligence reflection inductor (
,
) and laser range finder to the distance of intelligence reflection inductor (
,
) etc., and reference position using these angle-datas as next measurement point, intelligent laser is replied formula convergence monitoring instrument and will be calculated by these angle-datas and range data, draw (the X of this point, Y, Z) coordinate data, as passing judgment on the raw data and the foundation that whether restrain,
(4) work measurement: press after automatic measurement button, basis is pre-stored in start angle position data corresponding with each measuring point in convergence monitoring instrument by the control system that intelligent laser is replied formula convergence monitoring instrument, control the rotational angle of rotation platform and gage beam, successively the laser beam of laser range finder is reflected to inductor prism reflector to quasi intelligent, if now laser beam is just in time aimed at the prism reflector of intelligence reflection inductor to be measured, this intelligence reflection inductor will send registration signal by wireless launcher to convergence measurement instrument immediately, intelligent laser is replied formula convergence monitoring instrument and is received after this signal, automatically measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously,
If now because convergence or other reasons occur in tunnel, cause laser beam to fail to aim at the prism reflector of intelligence reflection inductor to be measured, control system will be carried out automated location correction, its method is to drive rotation platform and gage beam to carry out OBL spiral scan, so that laser beam is aimed to this intelligence reflection inductor, and (it is that program is predefined that side-play amount is moved in its spiral scan, be used for correcting the displacement correction of horizontal angle and vertical angle), until laser beam is just in time aimed at intelligence reflection inductor prism reflector to be measured, now this intelligence reflection inductor will send registration signal from trend convergence measurement instrument, convergence measurement instrument receives after this registration signal, by the rotation correction of automatically stop the rotation platform and gage beam, measure the air line distance that now laser range finder reflects inductor apart from this intelligence, and preserve this measurement (
,
) (
,
) as the reference position that measure next time, calculate (X, Y, Z) coordinate data of this time measuring this point simultaneously.
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| CN201410039290.0A CN103791849B (en) | 2014-01-27 | 2014-01-27 | Monitoring system and measuring method for laser intelligent response type tunnel convergence |
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| CN201410039290.0A CN103791849B (en) | 2014-01-27 | 2014-01-27 | Monitoring system and measuring method for laser intelligent response type tunnel convergence |
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