CN109458935B - Multidirectional multi-probe displacement monitoring equipment - Google Patents
Multidirectional multi-probe displacement monitoring equipment Download PDFInfo
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- CN109458935B CN109458935B CN201811483678.4A CN201811483678A CN109458935B CN 109458935 B CN109458935 B CN 109458935B CN 201811483678 A CN201811483678 A CN 201811483678A CN 109458935 B CN109458935 B CN 109458935B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 80
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 53
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- 238000012806 monitoring device Methods 0.000 claims abstract description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
The invention provides a multi-directional multi-probe displacement monitoring device, comprising: the left vertical frame beam and the left horizontal frame beam form a rectangular left frame, the right vertical frame beam and the right horizontal frame beam form a rectangular right frame, an upper frame beam, a lower frame beam and a middle frame beam are arranged between the left frame and the right frame, the frame beams are fixedly installed through connecting nuts, support cushion blocks are arranged at the joints between the frame beams, the upper frame beam is installed on the left frame and the right frame through the upper connecting beam, the lower frame beam is installed on the left frame and the right frame through the left Lian Jieliang and the right connecting beam, a forward monitoring assembly and a lateral monitoring assembly are arranged between the left frame and the right frame, and the forward monitoring assembly and the lateral monitoring assembly are mutually perpendicular.
Description
Technical Field
The invention relates to the technical field of engineering construction monitoring equipment, in particular to multi-directional multi-probe displacement monitoring equipment.
Background
In recent years, various accidents caused by building safety frequently happen, and building safety management faces serious tests. How to follow the new demand developed in the new era, how to better ensure the running safety of railways, bridges, urban buildings, rail transit, urban comprehensive pipe racks, hydraulic engineering, mines and the like, and a great part of accident causes in various building construction processes can be attributed to 'displacement': such as foundation pit settlement, building settlement, landslide, etc. The existing solution is to manually utilize instruments and equipment such as a total station to carry out field detection, the observation is not real-time, the interval between two measurements is more than one week or even one month, and great potential safety hazards are reserved. Secondly, the manual observation result is influenced by manual operation, and the accuracy and reliability are greatly influenced by professional quality of operators. Finally, the existing observation method requires a large amount of manpower resources and has high cost. During traditional measurement, the hand-held prism rod is directly erected on the monitoring point, so that artificial measurement errors are increased, and even false alarm of a foundation pit is possibly caused, and engineering construction is influenced. The laser phase method distance measurement technology is a commonly used distance measurement technology at present, and various laser distance meters and sensors based on the principle are widely applied to length distance measurement and position variation monitoring in the engineering measurement field. Due to the limitation of the principle, when the method is applied to displacement monitoring, the traditional laser ranging technology can only monitor the position change of a target measuring point in one dimension, the measured value is easily influenced by the rotation of the target or the position or angle change of a monitoring base point, whether the detected displacement change is caused by the real motion of the target or not cannot be accurately defined, and the method is narrow in application in the displacement monitoring field.
Chinese patent discloses a bridge displacement monitoring device (publication No. CN 206818096U), comprising: a base for connection into a bridge abutment or a bent cap; the suspension seat is used for being connected to the bottom surface of the bridge; the horizontal displacement monitoring plate is arranged on the base and keeps the upper plate surface of the horizontal displacement monitoring plate horizontal, and the upper plate surface of the horizontal displacement monitoring plate is provided with grid lines marked with scales; the horizontal displacement monitoring needle capable of recording the telescopic length is connected to the suspension seat, and the needle point of the horizontal displacement monitoring needle can form sliding contact with the upper plate surface of the horizontal displacement monitoring plate; the vertical displacement monitoring plate is arranged on the suspension seat and keeps the side plate surface of the vertical displacement monitoring plate vertical, and the side plate surface of the vertical displacement monitoring plate is provided with grid lines marked with scales; the vertical displacement monitoring needle capable of recording the telescopic length is connected to the base, and the needle tip of the vertical displacement monitoring needle can form sliding contact with the side plate surface of the vertical displacement monitoring plate. But the measurement accuracy is low, the monitoring range is narrow, and the requirement of multiple probes cannot be met.
Disclosure of Invention
The technical problem solved by the invention is to provide a multi-directional multi-probe displacement monitoring device so as to solve the problems in the background technology.
The technical problems solved by the invention are realized by adopting the following technical scheme: a multi-directional multi-probe displacement monitoring device comprising: the left vertical frame beam and the left horizontal frame beam form a rectangular left frame, the right vertical frame beam and the right horizontal frame beam form a rectangular right frame, an upper frame beam, a lower frame beam and a middle frame beam are arranged between the left frame and the right frame, the frame beams are fixedly installed through connecting nuts, support cushion blocks are arranged at the joints between the frame beams, the upper frame beam is installed on the left frame and the right frame through an upper connecting beam, the lower frame beam is installed on the left frame and the right frame through a left Lian Jieliang and a right connecting beam, a forward monitoring assembly and a lateral monitoring assembly are arranged between the left frame and the right frame, the forward monitoring assembly and the lateral monitoring assembly are mutually perpendicular, the forward monitoring assembly comprises a forward limiting bracket, the two ends of the forward limiting bracket are provided with spandrel beams, the displacement monitoring probe is arranged on the connecting support, the spherical axle seat is arranged on the outermost layer, the connecting support is arranged on one side of the spherical axle seat, the displacement monitoring probe is arranged on the connecting support, the forward limiting axle is arranged in a through hole in the spherical axle seat, an external thread is arranged on the forward limiting axle, one end of the forward limiting axle is arranged on the spandrel girder, the other end of the forward limiting axle is arranged on the spandrel girder through a compression axle sleeve, the compression axle sleeve is connected with the forward limiting axle through a thread, the lateral monitoring component comprises a lateral limiting support, the spandrel girder is arranged at two ends of the lateral limiting support, a cross beam is arranged on one side of the lateral limiting support, the chute is internally provided with a plurality of spherical axle seats, the hemispherical axle seat is arranged on the outermost layer of the spherical axle seat, the connecting support is arranged on two sides of the spherical axle seat, the displacement monitoring probe is arranged on the connecting support, the ball axle seat is characterized in that a lateral limiting shaft is arranged in the through hole in the ball axle seat, an external thread is arranged on the lateral limiting shaft, one end of the lateral limiting shaft is arranged on the spandrel girder, the other end of the lateral limiting shaft is arranged on the spandrel girder through a compression shaft sleeve, and the compression shaft sleeve is connected with the lateral limiting shaft through threads.
The left side end cover is arranged on the left frame, the right side end cover is arranged on the right frame, the front end of the left frame and the front end of the right frame are provided with front face masks, the rear end of the left frame and the rear end of the right frame are provided with rear face masks, a backboard is arranged between the left frame and the right frame at the front end of the rear face masks, and a multi-probe control system is arranged on the backboard.
The spandrel girder comprises a spandrel girder body, spandrel girder body middle part one side is equipped with spacing axle fixed ear, be equipped with spacing axle fixed draw-in groove on the spacing axle fixed ear, be equipped with spacing axle installation pad in the spacing axle fixed draw-in groove, spacing axle fixed draw-in groove outside is equipped with spacing support mounting hole, spacing support both ends are installed in spacing support mounting hole on left spandrel girder, right spandrel girder through fixing bolt, and spacing axle both ends card is established in spacing axle fixed draw-in groove.
The positive spacing axle, the spacing axle of side direction include spacing axle body, spacing axle body one end is equipped with spacing axle supporting part, the external screw thread has been seted up to the other end, and spacing axle supporting part outside is equipped with spacing axle fixed washer, spacing axle fixed washer outside is equipped with spacing axle elasticity adjusting nut.
The compression shaft sleeve comprises an internal thread shaft sleeve, one side of the internal thread shaft sleeve is provided with a shaft sleeve bulge gasket, and the other side of the internal thread shaft sleeve is provided with a shaft sleeve tightness adjusting nut.
The forward limiting support and the lateral limiting support comprise a limiting support body, the limiting support body is a C-shaped structural channel steel, the ball shaft seat is clamped in a sliding groove of the C-shaped structural channel steel, two ends of the limiting support body are provided with side fixing lugs and end fixing lugs, the side fixing lugs and the end fixing lugs are provided with fixing lug mounting holes, and the fixing lug mounting holes are mounted in the limiting support mounting holes on the left spandrel girder and the right spandrel girder through fixing bolts.
The ball axle seat comprises a ball axle seat mounting part and a ball axle seat clamping part, wherein the ball axle seat mounting part is provided with a mounting part clamping groove, the ball axle seat mounting part is clamped in a chute of the C-shaped structural channel steel, a hemispherical clamping groove is arranged in the ball axle seat clamping part, the connecting bracket is arranged between the ball axle seat clamping parts, the middle part of the ball axle seat clamping part is provided with a ball axle seat mounting hole, and the limiting axle passes through the ball axle seat mounting hole to fix the ball axle seat in a screwing way.
The connecting support comprises an upper connecting plate and a lower connecting plate, the upper connecting plate and the lower connecting plate are arranged on a T-shaped fixing plate, spherical fixing heads are arranged on the outer sides of the T-shaped fixing plates and clamped in hemispherical clamping grooves of two adjacent spherical shaft seats, spherical fixing head limiting holes are formed in the middle of each spherical fixing head, limiting shafts penetrate through the spherical fixing head limiting holes, the left and right shaking of the connecting support is limited, and a displacement monitoring probe is arranged between the upper connecting plate and the lower connecting plate.
The multi-probe control system comprises a main control module, wherein the main control module is connected with a power supply module, a clock module, a state indication module, a user operation module, a laser control module, a TTL-to-RS 232 module, a program updating module and a wiring terminal, the TTL-to-RS 232 module is connected with a data transmission module, and the data transmission module and the laser control module are connected with the power supply module.
A multi-probe displacement monitoring method comprising the steps of:
Step (1): installing a laser emitting and receiving device at the reference point position (B0), observing the position variation of the target point (B1) in the Y direction, and if the position of the target in the Y direction changes, causing the change of the ranging value, in an ideal case, the ranging value change amount is the position change amount of the target in the Y direction (d y);dy＝l-l0, where l is the current ranging value, and l 0 is the reference ranging value when the sensor is first installed;
Step (2): establishing multiple reference point networks for monitoring measurement sections, wherein signal emission sources of all monitoring points in the sections are referenced together, measuring the change of 6 degrees of freedom of the reference points of each section, utilizing a reference network calculation method, each reference point B0 can detect the three-axis rotation angle change (theta x, theta y, theta z) of the azimuth change of the reference point B0 by utilizing a three-axis gyroscope and a magnetometer, eliminating the actual coordinate change of B1 after the measured value change caused by the rotation of the reference point B0,
R is the distance between B0 and B1, and the coordinate change of B1 relative to B0 is measured by eliminating the high-order small quantity under the condition of small-angle rotation in the calculation of the formula;
Step (3): by means of the transmission of the measurement reference, B0 monitors the variation of B1, B1 can monitor the variation … of B2 backwards, so that the absolute coordinate variation Di of any section can be obtained
Compared with the prior art, the invention has the following advantages: the invention can conveniently install a plurality of displacement monitoring probes, the adjusting surface adopts spherical contact, the locking is stronger, the reliability is higher, and a plurality of directions can be monitored simultaneously, so that the monitoring cost is greatly reduced.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is a schematic view of the structure of the spandrel girder of the present invention.
Fig. 5 is a schematic view of a limiting shaft structure according to the present invention.
Fig. 6 is a schematic view of the structure of the compression sleeve of the present invention.
Fig. 7 is a schematic view of a limiting bracket according to the present invention.
Fig. 8 is a schematic view of a ball axle seat according to the present invention.
Fig. 9 is a schematic view of a connecting bracket according to the present invention.
Fig. 10 is a schematic circuit diagram of a main control module according to the present invention.
Fig. 11 is a schematic diagram of a power module of the present invention.
Fig. 12 is a schematic diagram of a clock module circuit of the present invention.
Fig. 13 is a schematic diagram of a status indication module of the present invention.
Fig. 14 is a schematic circuit diagram of a user operation module according to the present invention.
Fig. 15 is a schematic circuit diagram of a laser control module according to the present invention.
Fig. 16 is a schematic diagram of a circuit diagram of a data transmission module according to the present invention.
FIG. 17 is a schematic diagram of a TTL to RS232 module according to the present invention.
Fig. 18 is a schematic diagram of a program update module of the present invention.
Fig. 19 is a schematic diagram of a terminal block circuit of the present invention.
FIG. 20 is a schematic diagram of a multi-probe control system of the present invention.
Fig. 21 is a schematic diagram of a multi-probe displacement monitoring method according to the present invention.
Fig. 22 is a schematic diagram of the reference network calculation principle of the present invention.
Detailed Description
In order to make the technical means, creation features, working procedure, and use method of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and in the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be interpreted in a broad sense, for example, they may be fixed connection, may be detachable connection, or integrally connected to be mechanical connection, or may be electrical connection; either directly or indirectly, or through an intermediary, or in communication with the interior of two elements, it will be apparent that the embodiments described are merely some, but not all, of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-9, a multi-directional multi-probe displacement monitoring apparatus comprising: the left vertical frame beam 3 and the left horizontal frame beam 8 form a rectangular left frame, the right vertical frame beam 17 and the right horizontal frame beam 12 form a rectangular right frame, an upper frame beam 9, a lower frame beam 16 and a middle frame beam 23 are arranged between the left frame and the right frame, the frame beams are fixedly installed through connecting nuts 6, a supporting cushion block 7 is arranged at the joint between the frame beams, the upper frame beam 9 is installed on the left frame and the right frame through an upper connecting beam 18, the lower frame beam 16 is installed on the left frame and the right frame through a left connecting beam 14 and a right connecting beam 17, a forward monitoring component and a lateral monitoring component are arranged between the left frame and the right frame, the forward monitoring component and the lateral monitoring component are mutually perpendicular, the forward monitoring component comprises a forward limiting bracket 4, the two ends of the forward limiting support 4 are provided with bearing beams 11, one side of the forward limiting support 4 is provided with a sliding groove, a plurality of ball shaft seats 20 are arranged in the sliding groove, the outermost layer of each ball shaft seat 20 is provided with a hemispherical shaft seat 19, two sides of each ball shaft seat 20 are provided with connecting supports 5, a displacement monitoring probe is arranged on each connecting support 5, a forward limiting shaft 2 is arranged in a through hole in each ball shaft seat 20, external threads are formed on each forward limiting shaft 2, one end of each forward limiting shaft 2 is arranged on each bearing beam 11, the other end of each forward limiting shaft 2 is arranged on each bearing beam 11 through a compression shaft sleeve 10, the compression shaft sleeve 10 is connected with each forward limiting shaft 2 through threads, each lateral monitoring assembly comprises a lateral limiting support 22, the two ends of each lateral limiting support 22 are provided with bearing beams 11, one side of each lateral limiting support 22 is provided with a cross beam 21, one side of each lateral limiting support 22 is provided with a sliding groove, a plurality of ball shaft seats 20 are arranged in each sliding groove, the outermost layer of the ball axle seat 20 is provided with a hemispherical axle seat 19, the two sides of the ball axle seat 20 are provided with connecting brackets 5, a displacement monitoring probe is installed on the connecting brackets 5, a lateral limiting shaft 24 is arranged in a through hole in the ball axle seat 20, an external thread is arranged on the lateral limiting shaft 24, one end of the lateral limiting shaft 24 is installed on the spandrel girder 11, the other end of the lateral limiting shaft 24 is installed on the spandrel girder 11 through a compression shaft sleeve 10, and the compression shaft sleeve 10 is connected with the lateral limiting shaft 24 through threads.
The left side end cover 1 is arranged on the left frame, the right side end cover 13 is arranged on the right frame, the front ends of the left frame and the right frame are provided with the front face mask 15, the rear ends of the left frame and the right frame are provided with the rear face mask 25, the back plate 26 is arranged between the left frame and the right frame at the front end of the rear face mask 25, and the back plate 26 is provided with the multi-probe control system.
The spandrel girder 11 includes spandrel girder body 101, spandrel girder body 101 middle part one side is equipped with spacing axle fixed ear 102, be equipped with spacing axle fixed draw-in groove 103 on the spacing axle fixed ear 102, be equipped with spacing axle installation pad 104 in the spacing axle fixed draw-in groove 103, spacing axle fixed draw-in groove 103 outside is equipped with spacing support mounting hole 105, spacing support both ends are installed in spacing support mounting hole 105 on left spandrel girder, right spandrel girder through fixing bolt, and spacing axle both ends card is established in spacing axle fixed draw-in groove 103.
The forward limiting shaft 2 and the lateral limiting shaft 24 comprise a limiting shaft body 301, one end of the limiting shaft body 301 is provided with a limiting shaft supporting portion 302, the other end of the limiting shaft body is provided with external threads, the outer side of the limiting shaft supporting portion 302 is provided with a limiting shaft fixing washer 303, and the outer side of the limiting shaft fixing washer 303 is provided with a limiting shaft tightness adjusting nut 304.
The compression shaft sleeve 10 comprises an internal thread shaft sleeve 401, wherein a shaft sleeve bulge gasket 402 is arranged on one side of the internal thread shaft sleeve 401, and a shaft sleeve tightness adjusting nut 403 is arranged on the other side of the internal thread shaft sleeve.
The forward limiting support 4 and the lateral limiting support 22 comprise a limiting support body 501, the limiting support body 501 is a C-shaped structural channel steel, a ball shaft seat is clamped in a sliding groove of the C-shaped structural channel steel, two ends of the limiting support body 501 are provided with side fixing lugs 502 and end fixing lugs 503, the side fixing lugs 502 and the end fixing lugs 503 are provided with fixing lug mounting holes 504, and the fixing lug mounting holes 504 are mounted in the limiting support mounting holes on the left spandrel girder and the right spandrel girder through fixing bolts.
The ball axle seat 20 comprises a ball axle seat mounting part 601 and a ball axle seat clamping part 602, wherein a mounting part clamping groove is formed in the ball axle seat mounting part 601, the ball axle seat mounting part 601 is clamped in a chute of the C-shaped structural channel steel, a hemispherical clamping groove 603 is formed in the ball axle seat clamping part 602, a connecting bracket 7 is arranged between the ball axle seat clamping parts 602, a ball axle seat mounting hole is formed in the middle of the ball axle seat clamping part 602, and a limiting shaft penetrates through the ball axle seat mounting hole to fix the ball axle seat 6 in a screwing mode.
The connecting bracket 5 comprises an upper connecting plate 701 and a lower connecting plate 702, the upper connecting plate 701 and the lower connecting plate 702 are arranged on a T-shaped fixing plate 703, a spherical fixing head 704 is arranged on the outer side of the T-shaped fixing plate 703, the spherical fixing head 704 is clamped in hemispherical clamping grooves of two adjacent spherical shaft seats, a spherical fixing head limiting hole is formed in the middle of the spherical fixing head 704, a limiting shaft penetrates through the spherical fixing head limiting hole, left and right shaking of the connecting bracket is limited, and a displacement monitoring probe is arranged between the upper connecting plate 701 and the lower connecting plate 702.
The displacement monitoring probe is a laser probe, the reflector plate is installed at the position of the foundation pit, which is required to be monitored, the settlement of the foundation pit is monitored in real time by utilizing the laser reflection principle, the rear face cover and the front face cover are made of transparent plastic materials, the displacement monitoring probe is installed between the upper connecting plate and the lower connecting plate during use, then, the limiting shaft penetrates through the limiting holes of the spherical fixing heads to limit the left and right shaking of the connecting support, afterwards, the spherical fixing heads are clamped in the hemispherical clamping grooves of the two adjacent spherical shaft seats, then, the limiting shaft penetrates through the spherical shaft seat installing holes to fix the spherical shaft seats in a screwing mode, when the displacement monitoring probe is regulated, the (semi) spherical shaft seats are guaranteed to be in a semi-pre-tightening state during loosening of the compression screw sleeve, the displacement monitoring probe is controlled to rotate and not to be displaced due to looseness, meanwhile, the spherical shaft seat installing part is clamped in the sliding groove of the C-shaped structural channel steel, the spherical shaft seat clamping part is internally provided with the hemispherical clamping groove, the limiting support is installed between the spherical shaft seat clamping parts, the limiting shaft penetrates through the spherical shaft seat installing holes to fix the spherical shaft seats, a plurality of displacement monitoring probes can be conveniently installed, and simultaneously, the upper and lower angle of the displacement monitoring probes can be regulated conveniently, and the use is very convenient, and the monitoring cost can be greatly reduced.
As shown in fig. 10-20, the multi-probe control system comprises a main control module, wherein the main control module is connected with a power module, a clock module, a status indication module, a user operation module, a laser control module, a TTL-to-RS 232 module, a program update module and a wiring terminal, the TTL-to-RS 232 module is connected with a data transmission module, and the data transmission module and the laser control module are connected with the power module.
The main control module is a heart operated by the whole system, and can realize data receiving, data processing, data sending and system management, the MCU adopts STM32F103RCT6, and the power supply module needs two power supplies: DC12V and dc3.3v. DC12V is mainly used for supplying power to the DTU, and is obtained by adopting an external 12V/5A power adapter; and 3.3V is mainly used for supplying power to the MCU, the LED and the laser, and is realized by adopting a DC-DC voltage stabilizing chip. Fig. 1 is a schematic design diagram of a power module, mainly using a heavy-load switching power supply chip LM2596S-3.3, which converts 12V dc into the required 3.3V dc. And R4 adopts 0 ohm to realize isolation treatment on an external power supply.
The clock module is a precondition guarantee for MCU operation, and the system has two clocks: 8MHz and 32.768KHz, wherein the clock generated by the 8MHz crystal oscillator is used for the normal operation of MCU peripheral, and the clock generated by the 32.768KHz crystal oscillator is mainly used for RTC.
The status indication module is used for visually displaying the running status of the device, and in fig. 4, there are two kinds of indication lamps: the red color is a power state indicator lamp, so that whether a power supply is normal or not can be monitored, and the indicator lamp is long-lighted under the normal condition of the power supply; the green data communication indicator lamp can monitor whether the data communication is normal or not, and the data communication can flash when normal.
The user operation module mainly provides system hard reset and functional operation, as shown in fig. 5. A reset key (red) may be operated when the device is out of operation or needs to be reset to validate certain configurations; when the device is installed or debugged, the laser can be turned on or off through a function key (blue). Resetting and switching the laser may also be accomplished by remote control instructions.
The main chip of the laser control module is TS5A3167 of TI company, which is used for restarting the laser sensor and preventing the laser sensor from automatically stopping when the environment is bad.
The data transmission module is characterized in that Q1 is an NPN triode, and plays a role of a switch, U6 is a P channel enhanced field effect transistor, and large current is mainly provided for DTU operation. The TTL-to-RS 232 module main chip is MAX3232 and is mainly used for converting the TTL level of the MCU into the RS232 level which can be communicated with the DTU. The program updating module is mainly used for downloading programs to the MCU by the J-LINK. The wiring terminal comprises a status indicator light, a user operation button, a DTU communication interface and a communication interface of the laser sensor.
As shown in fig. 21 and 22, a multi-probe displacement monitoring method includes the following steps:
Step (1): installing a laser emitting and receiving device at the reference point position (B0), observing the position variation of the target point (B1) in the Y direction, and if the position of the target in the Y direction changes, causing the change of the ranging value, in an ideal case, the ranging value change amount is the position change amount of the target in the Y direction (d y);dy＝l-l0, where l is the current ranging value, and l 0 is the reference ranging value when the sensor is first installed;
Step (2): establishing multiple reference point networks for monitoring measurement sections, wherein signal emission sources of all monitoring points in the sections are referenced together, measuring the change of 6 degrees of freedom of the reference points of each section, utilizing a reference network calculation method, each reference point B0 can detect the three-axis rotation angle change (theta x, theta y, theta z) of the azimuth change of the reference point B0 by utilizing a three-axis gyroscope and a magnetometer, eliminating the actual coordinate change of B1 after the measured value change caused by the rotation of the reference point B0,
R is the distance between B0 and B1, and the coordinate change of B1 relative to B0 is measured by eliminating the high-order small quantity under the condition of small-angle rotation in the calculation of the formula;
Step (3): by means of the transmission of the measurement reference, B0 monitors the variation of B1, B1 can monitor the variation … of B2 backwards, so that the absolute coordinate variation Di of any section can be obtained
The invention can be not influenced by target rotation and monitoring base point variation. The three-axis gyroscope, the accelerometer and the magnetometer are integrated on the hardware, the multi-sensor information fusion technology is utilized on software, the measured displacement data is corrected by utilizing the multi-sensor information, the influence of monitoring base point variation on a system measurement result can be effectively identified, the monitoring precision is improved, the influence of factors such as the reference point variation on a laser ranging value is identified by utilizing the multi-sensor data fusion technology, and the laser ranging value is corrected in real time, so that the real and reliable target position variation is obtained. The invention can conveniently install a plurality of displacement monitoring probes, the adjusting surface adopts spherical contact, the locking is stronger, the reliability is higher, and simultaneously, the upper and lower angles of the plurality of displacement monitoring probes can be adjusted, thereby being convenient to use.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A multi-directional multi-probe displacement monitoring device comprising: left side vertical frame roof beam, left horizontal frame roof beam, rectangular left frame is constituteed to left side vertical frame roof beam, left horizontal frame roof beam, right vertical frame roof beam, right horizontal frame roof beam, rectangular right frame is constituteed to right vertical frame roof beam, right horizontal frame roof beam, its characterized in that: an upper frame beam, a lower frame beam and a middle frame beam are arranged between the left frame and the right frame, the upper frame beam and the right frame are fixedly installed through connecting nuts, a supporting cushion block is arranged at the joint between the frame beams, the upper frame beam is installed on the left frame and the right frame through the upper connecting beam, the lower frame beam is installed on the left frame and the right frame through the left Lian Jieliang and the right connecting beam, a forward monitoring component and a lateral monitoring component are arranged between the left frame and the right frame, the forward monitoring component and the lateral monitoring component are mutually perpendicular, the forward monitoring component comprises a forward limiting bracket, two ends of the forward limiting bracket are provided with bearing beams, one side of the forward limiting bracket is provided with a sliding groove, a plurality of ball bearing seats are arranged in the sliding groove, the outermost layer of the ball bearing seats is provided with hemispherical bearing seats, two sides of the ball bearing seats are provided with connecting brackets, the displacement monitoring probe is installed on the connecting bracket, the ball bearing seat is internally provided with an external thread, one end of the forward limiting shaft is installed on the bearing beam, the other end of the forward limiting shaft is installed on the bearing beam through a compression sleeve, the compression sleeve is installed on the bearing sleeve through the compression sleeve, the lateral limiting bracket is mutually perpendicular to the lateral limiting bracket, the ball bearing seat is installed on one side of the two ends of the ball bearing seats through the side of the side limiting bracket, the ball bearing seat is installed on the ball bearing seat, the ball bearing seat is internally provided with a ball bearing seat is in the lateral limiting seat, and the ball bearing seat is installed on the ball bearing seat, the compression shaft sleeve is connected with the lateral limiting shaft through threads; the left end cover is arranged on the left frame, the right end cover is arranged on the right frame, the front ends of the left frame and the right frame are provided with front face masks, the rear ends of the left frame and the right frame are provided with rear face masks, a backboard is arranged between the left frame and the right frame at the front end of the rear face masks, and a multi-probe control system is arranged on the backboard; the spandrel girder comprises a spandrel girder body, spandrel girder body middle part one side is equipped with spacing axle fixed ear, be equipped with spacing axle fixed draw-in groove on the spacing axle fixed ear, be equipped with spacing axle installation pad in the spacing axle fixed draw-in groove, spacing axle fixed draw-in groove outside is equipped with spacing support mounting hole, spacing support both ends are installed in spacing support mounting hole on left spandrel girder, right spandrel girder through fixing bolt, and spacing axle both ends card is established in spacing axle fixed draw-in groove.
2. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the positive spacing axle, the spacing axle of side direction include spacing axle body, spacing axle body one end is equipped with spacing axle supporting part, the external screw thread has been seted up to the other end, and spacing axle supporting part outside is equipped with spacing axle fixed washer, spacing axle fixed washer outside is equipped with spacing axle elasticity adjusting nut.
3. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the compression shaft sleeve comprises an internal thread shaft sleeve, one side of the internal thread shaft sleeve is provided with a shaft sleeve bulge gasket, and the other side of the internal thread shaft sleeve is provided with a shaft sleeve tightness adjusting nut.
4. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the forward limiting support and the lateral limiting support comprise a limiting support body, the limiting support body is a C-shaped structural channel steel, the ball shaft seat is clamped in a sliding groove of the C-shaped structural channel steel, two ends of the limiting support body are provided with side fixing lugs and end fixing lugs, the side fixing lugs and the end fixing lugs are provided with fixing lug mounting holes, and the fixing lug mounting holes are mounted in the limiting support mounting holes on the left spandrel girder and the right spandrel girder through fixing bolts.
5. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the ball axle seat comprises a ball axle seat mounting part and a ball axle seat clamping part, wherein the ball axle seat mounting part is provided with a mounting part clamping groove, the ball axle seat mounting part is clamped in a chute of the C-shaped structural channel steel, a hemispherical clamping groove is arranged in the ball axle seat clamping part, the connecting bracket is arranged between the ball axle seat clamping parts, the middle part of the ball axle seat clamping part is provided with a ball axle seat mounting hole, and the limiting axle passes through the ball axle seat mounting hole to fix the ball axle seat in a screwing way.
6. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the connecting support comprises an upper connecting plate and a lower connecting plate, the upper connecting plate and the lower connecting plate are arranged on a T-shaped fixing plate, spherical fixing heads are arranged on the outer sides of the T-shaped fixing plates and clamped in hemispherical clamping grooves of two adjacent spherical shaft seats, spherical fixing head limiting holes are formed in the middle of each spherical fixing head, limiting shafts penetrate through the spherical fixing head limiting holes, the left and right shaking of the connecting support is limited, and a displacement monitoring probe is arranged between the upper connecting plate and the lower connecting plate.
7. A multi-directional multi-probe displacement monitoring apparatus as claimed in claim 1, wherein: the multi-probe control system comprises a main control module, wherein the main control module is connected with a power supply module, a clock module, a state indication module, a user operation module, a laser control module, a TTL-to-RS 232 module, a program updating module and a wiring terminal, the TTL-to-RS 232 module is connected with a data transmission module, and the data transmission module and the laser control module are connected with the power supply module.
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| CN201811483678.4A CN109458935B (en) | 2018-12-05 | 2018-12-05 | Multidirectional multi-probe displacement monitoring equipment |
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| CN110595415A (en) * | 2019-10-16 | 2019-12-20 | 合肥物尔物信息科技有限公司 | Plate-type mounting structure of multi-probe displacement monitoring probe |
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| CN105444676B (en) * | 2014-09-30 | 2018-07-06 | 宝山钢铁股份有限公司 | Suitable for the multi-faceted positioning device of online scanning survey probe |
| CN207007114U (en) * | 2017-08-09 | 2018-02-13 | 武汉智诺维科技有限公司 | A kind of automobile roll shape beam multiple spot laser displacement sensor three-dimensional measuring apparatus |
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| CN208012580U (en) * | 2018-03-13 | 2018-10-26 | 福建省厦门市公路局 | Deflection of bridge span Multipoint synchronous test device |
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