CN108917718A - A kind of wireless tilt and displacement monitoring device, system and method - Google Patents

A kind of wireless tilt and displacement monitoring device, system and method Download PDF

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Publication number
CN108917718A
CN108917718A CN201811034976.5A CN201811034976A CN108917718A CN 108917718 A CN108917718 A CN 108917718A CN 201811034976 A CN201811034976 A CN 201811034976A CN 108917718 A CN108917718 A CN 108917718A
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CN
China
Prior art keywords
detected
tilt
main control
control mcu
initial
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CN201811034976.5A
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Chinese (zh)
Inventor
郑文
林文忠
阳清
何勇华
韩晓东
林文
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Fujian Huichuan Iot Technology Polytron Technologies Inc
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Fujian Huichuan Iot Technology Polytron Technologies Inc
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Priority to CN201811034976.5A priority Critical patent/CN108917718A/en
Publication of CN108917718A publication Critical patent/CN108917718A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00Measuring distances in line of sight; Optical rangefinders
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The present invention relates to a kind of wireless tilt and displacement monitoring device, system and method, described device includes main control MCU, obliquity sensor, laser range sensor, wireless communication module and power management module;The obliquity sensor is connected to main control MCU, and the obliquity sensor is used to obtain the tilt angle of the monitoring point of body to be detected, and the tilt angle that will acquire is sent to main control MCU;The laser range sensor is connected to middle control MCU, and the laser range sensor is used to measure the monitoring point of body to be detected and the initial perpendicular height of reference ground, and the vertical height of measurement is sent to main control MCU;The main control MCU is used to judge whether the tilt angle of the monitoring point of body to be detected changes according to tilt angle and the initial inclination angle of the monitoring point for receiving body to be detected, if changing, it is displaced according to the tendency that the differential seat angle of the tilt angle and initial inclination angle that receive and initial perpendicular height calculate body to be detected.The body to be detected of different height is accurately monitored.

Description

A kind of wireless tilt and displacement monitoring device, system and method
Technical field
The present invention relates to building displacement fields of measurement, in particular to a kind of wireless tilt and displacement monitoring amount device, system And method.
Background technique
In skyscraper project, all there is Construction of Deep Excavation Engineering in subway construction in road, bridge.Foundation pit was excavating Before certain deep basal pit need to be gone along with sb. to guard him, more common mode is to encircle and hunt down fender pile at present, forms supporting construction.But in digging process In or foundation pit complete after, due to being influenced by factors such as foundation pit periphery soil body unloading effect, geology water penetration, weather disasters, It is often squeezed support pile and run-off the straight, or even avalanche occurs and cause safety accident.At present in construction project field, The measure generally taken Pile of Deep Foundation Pit, high and big die plate, the safety monitoring of high slope and early warning is by measuring its inclination Angle monitors its tilt condition.This mode in practical engineering applications in a manner of unilateral inclination angle come be monitored and safety Existing defects when early warning.Such as the Pile of Deep Foundation Pit of different height, ancient building or high slope, when the identical inclination angle of appearance When spending, accident that higher Pile of Deep Foundation Pit, ancient building or the high slope of height is more easy to appear collapsing, collapses.And it is existing Tilt angle measuring device be largely all based on three-axis gyroscope sensor, three-axis gyroscope sensor is based primarily upon angle acceleration The principle of degree, there is very big advantage at the inclination angle of object in measurement movement, but to static tilt angles measurement result inaccuracy or essence It is poor to spend.Also have in small part application and selects the deviation survey equipment based on fibre optic gyroscope, the greatest weakness of such deviation survey equipment Be purchase, operation and maintenance it is at high cost, while there is also caused by some sensitivity disappearances, noise and fiber birefringence drift and The problems such as scale factor caused by polarization state changes is unstable.
Summary of the invention
For this reason, it may be necessary to provide a kind of wireless tilt and displacement monitoring device, system and method, solve existing to incline by detection Rake angle is monitored to building and safe early warning existing defects, three-axis gyroscope detection static tilt angle are inaccurate and optical fibre gyro Instrument problem at high cost and unstable.
To achieve the above object, it inventor provides a kind of wireless tilt and displacement monitoring device, including main control MCU, inclines Angle transducer, laser range sensor, wireless communication module and power management module;
The obliquity sensor is connected to main control MCU, and the obliquity sensor is used to obtain the monitoring point of body to be detected Tilt angle, and the tilt angle that will acquire is sent to main control MCU;
The laser range sensor is connected to middle control MCU, and the laser range sensor is for measuring body to be detected The initial perpendicular height of monitoring point and reference ground, and the vertical height of measurement is sent to main control MCU;
The main control MCU is used to be judged according to the tilt angle and initial inclination angle for the monitoring point for receiving body to be detected Whether the tilt angle of the monitoring point of body to be detected changes, if changing, according to the tilt angle received and just The tendency that the differential seat angle and initial perpendicular height of beginning tilt angle calculate body to be detected is displaced;
The wireless communication module is connected to main control MCU, what the wireless communication module was used to for main control MCU being calculated The tendency displacement of body to be detected is sent to data acquisition center server;
The power management module connection main control MCU, obliquity sensor, laser range sensor and wireless communication module, The power module is used to be main control MCU, obliquity sensor, laser range sensor and wireless communication module power supply.
It advanced optimizes, the obliquity sensor is double-shaft tilt angle sensor.
It advanced optimizes, the wireless communication module is narrowband Internet of Things mould group.
It advanced optimizes, further includes electronic compass, the electronic compass is connected to main control MCU, and the electronic compass is used for Detect the monitoring point inclined direction of body to be detected.
It advanced optimizes, further includes alarm lamp, the alarm lamp is connected to main control MCU;
The main control MCU is also used to judge whether tendency displacement is more than if that preset threshold passes through nothing be more than preset threshold Line communication module sends warning information to data acquisition center server, and controls alarm lamp and light.
It advanced optimizes, the main control MCU, which is also used to work as, judges that the tilt angle of the monitoring point of body to be detected does not become Change, then control obliquity sensor, laser range sensor enters suspend mode within a preset time, while entering low consumption mode.
Inventor additionally provides another technical solution:A kind of wireless tilt and Displacement monitor system, including wireless tilt And displacement monitoring device, base station and data acquisition center server;
The wireless tilt and displacement monitoring device are wireless tilt described above and displacement monitoring device;
The base station is connected to data acquisition center server for wireless communication module;
The data acquisition center server be used to receive and store wireless tilt and displacement monitoring device send it is to be checked Survey the tilt angle, vertical height and tendency displacement of body.
Inventor additionally provides another technical solution:A kind of wireless tilt and displacement monitoring method, include the following steps:
Initial alignment value obtaining step:The initial inclination angle of the monitoring point of body to be detected is obtained by obliquity sensor, And the monitoring point of body to be detected and the initial perpendicular height of reference ground are obtained by laser range sensor;
Detect numerical value obtaining step:It is spaced preset time, inclining for the monitoring point of body to be detected is obtained by obliquity sensor Rake angle;
Tilt judgment step:According to initial inclination angle, judge whether the tilt angle of the monitoring point of body to be detected occurs Variation;
If changing, according to the differential seat angle and initial perpendicular height of the tilt angle and initial inclination angle received The tendency displacement for the body to be detected being calculated is sent to data acquisition center service by the tendency displacement for calculating body to be detected Device.
It advanced optimizes, further includes step after the inclination judgment step:
Judge whether tendency displacement reaches preset threshold, if reaching preset threshold, is sent out to data acquisition center server Warning information is sent, alarm signal is simultaneously emitted by.
It advanced optimizes, the initial alignment value obtaining step further includes:The prison of body to be detected is obtained by electronic compass The initial tilt direction of measuring point;
The detection numerical value obtaining step further includes:It is spaced preset time, the prison of body to be detected is obtained by electronic compass The inclined direction of measuring point;
The inclination judgment step specifically includes:Be compared according to the tilt angle of acquisition with initial inclination angle or It is compared according to the inclined direction of acquisition with initial tilt direction, if tilt angle or inclined direction change, basis The tendency that the differential seat angle and initial perpendicular height of the tilt angle and initial inclination angle that receive calculate body to be detected is displaced, together When direction difference obtained according to the inclined direction that receives and initial tendency direction calculating, by the tendency for the body to be detected being calculated Displacement and direction difference are sent to data acquisition center server.
It is different from the prior art, above-mentioned technical proposal, the tilt angle of body to be detected is obtained by obliquity sensor, and logical The vertical height that laser range sensor obtains the monitoring point of testee is crossed, the tilt angle and vertical height meter of acquisition are passed through It calculates tendency of the testee in monitoring point to be displaced, the tendency displacement of acquisition is then sent to data acquisition center server, is led to It crosses data acquisition center server and data analysis is carried out to the tendency displacement received, and whether can collapse to body to be detected Dangerous and generation early warning, the monitoring location without level body to be detected is different, and the to be detected of different height may be implemented Displacement state parameter monitoring and safe early warning when body run-off the straight can accurately be supervised for the body to be detected of different height Control.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of wireless tilt described in specific embodiment and displacement monitoring device;
Fig. 2 is a kind of circuit diagram of main control MCU described in specific embodiment;
Fig. 3 is a kind of circuit diagram of power management described in specific embodiment;
Fig. 4 is a kind of circuit diagram of obliquity sensor described in specific embodiment;
Fig. 5 is a kind of circuit diagram of wireless communication module described in specific embodiment;
Fig. 6 is a kind of circuit diagram of electronic compass described in specific embodiment;
Fig. 7 is a kind of structural schematic diagram of wireless tilt described in specific embodiment and Displacement monitor system;
Fig. 8 is wireless tilt and a kind of flow diagram of displacement monitoring method described in specific embodiment.
Description of symbols:
110, main control MCU,
120, obliquity sensor,
130, wireless communication module,
140, laser range sensor,
150, power management module,
160, electronic compass,
710, wireless tilt and displacement monitoring device,
720, base station,
730, data acquisition center server.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality It applies example and attached drawing is cooperated to be explained in detail.
Referring to Fig. 1, wireless tilt and displacement monitoring device described in the present embodiment, including main control MCU 110, inclination angle sensing Device 120, laser range sensor 140, obliquity sensor 120 and power management module 150;
The obliquity sensor 120 is connected to main control MCU 110, and the obliquity sensor 120 is for obtaining body to be detected The tilt angle of monitoring point, and the tilt angle that will acquire is sent to main control MCU 110;
The laser range sensor 140 is connected to middle control MCU, and the laser range sensor 140 is to be checked for measuring The monitoring point of body and the initial perpendicular height of reference ground are surveyed, and the vertical height of measurement is sent to main control MCU 110;
The main control MCU 110 is used for tilt angle and initial inclination angle according to the monitoring point for receiving body to be detected Judge whether the tilt angle of the monitoring point of body to be detected changes, if changing, according to the tilt angle received The tendency for calculating body to be detected with the differential seat angle and initial perpendicular height of initial inclination angle is displaced;
The obliquity sensor 120 is connected to main control MCU 110, and the obliquity sensor 120 is based on by main control MCU 110 The tendency displacement of obtained body to be detected is sent to data acquisition center server;
The power management module 150 connects main control MCU 110, obliquity sensor 120, laser range sensor 140 and inclines Angle transducer 120, the power module are used for as master control MCU110, obliquity sensor 120, laser range sensor 140 and incline Angle transducer 120 is powered.
Wireless movement measuring device is mounted on the monitoring point of body to be detected, the position of monitoring point is according to different to be checked The height for surveying body is configured, and body to be detected includes Pile of Deep Foundation Pit, high slope, ancient building etc..When installation, main control MCU 110 By obliquity sensor 120 and laser range sensor 140 measure respectively the monitoring point of body to be detected initial inclination angle and Initial perpendicular height, wherein in order to accurately obtain the initial alignment value of tilt angle and vertical height, when installation, repeatedly obtain Then the tilt angle and vertical height of the monitoring point of body to be detected carry out assert body to be detected according to the data repeatedly obtained The initial alignment value of monitoring point, i.e. initial inclination angle and initial perpendicular height;Then when main control MCU 110 is default by interval Between obtain the tilt angle of body to be detected by obliquity sensor 120 and pass through obliquity sensor such as at interval of 10 minutes 120 obtain the tilt angle of body to be detected, and wherein preset time can be set according to different bodies to be detected, master control When MCU110 obtains the tilt angle of body to be detected by obliquity sensor 120, pass through the tilt angle and initial tilt of acquisition Angle, which is compared, judges whether tilt angle changes, when the tilt angle even obtained is consistent with initial inclination angle, It does not change then, changes if inconsistent, when main control MCU 110 judges that the tilt angle of body to be detected changes, Then main control MCU 110 according between the tilt angle and initial inclination angle of acquisition differential seat angle and initial perpendicular height according to hook Stock theorem calculates the tendency displacement of the monitoring point of body to be detected, and then main control MCU 110 is by the tendency being calculated displacement by inclining Angle transducer 120 is sent to data acquisition center server, data acquisition center server according to the tendency received be displaced into Row Data Analysis Services, judge whether body to be detected can collapse, and provide corresponding safe early warning according to analysis structure.Energy Enough accurately monitored for the body to be detected of different height.
Referring to Fig. 2, in the present embodiment, what main control MCU 110 was selected is STM32F411 microcontroller, main control MCU 110 It is integratedKernel (has floating point unit), working frequency 100MHz, while can also be in operation and shutdown mode It is lower to realize outstanding low power capabilities.There are rich communication bus interface, 3 road USART, 5 road SPI, 3 road I2C etc..
Referring to Fig. 3, power management module 150 is according to main control MCU 110, obliquity sensor 120, laser range sensor 140 and obliquity sensor 120 required voltage require convert out corresponding voltage, main control MCU 110, obliquity sensor are provided 120, the power reguirements of laser range sensor 140 and obliquity sensor 120, wherein power management module 150 will also complete electricity The management of charging and discharging in pond.
Referring to Fig. 4, in the present embodiment, basic theories basis of the obliquity sensor 120 based on Newton's second law is used The working principle of " solid pendulum " formula designs.When obliquity sensor 120 remains static, it only by gravity effect, Therefore the angle between its gravity vertical axis and sensitive axis of sensor is just required inclination angle.It is propped up between inclination sensor and outside MCU The communication of SPI serial digital interface is held, institute's measured data is sent to external MCU in the form of digital quantity, MCU carries out institute's measured data Tilt angle data are obtained after filtering, denoising.Wherein, obliquity sensor 120 uses the SCA100T-D02 of VTI science and technology Double-shaft tilt angle sensor 120, it can measure X, the tilt angle in two faces of Y-axis, surveyed dip resolution up to 0.002 °, Precision is up to 0.01 °.
In the present embodiment, laser ranging module mainly completes monitoring point and the relative altitude of reference ground measures, and selects Frequency is 2HZ, and range accuracy is the SW-M40 laser range sensor 140 of 3mm.
It, cannot be timely and effective and conveniently in order to solve the collected data of deviation survey equipment referring to Fig. 5, in the present embodiment The problem of being sent to data acquisition center server.It is reported substantially all in the data of most deviation survey equipment currently on the market That data acquisition center server is sent to by cable network mode, also have small part deviation survey equipment be by short distance without Data line is pooled to inside a local data collector by line mode (such as zigbee, Lora), is then acquired by data Device is sent to data acquisition center server-side in a manner of cable network.This wired mode or wirelessly added with the mode of line most Big problem is exactly that cable network often cannot reach project site at engineering initial stage, very complicated is laid, to deviation survey equipment It installs and uses and brings bottleneck.Data cannot timely and effective and be easily sent in order to solve the collected data of deviation survey equipment The problem of acquiring central server, the use of the obliquity sensor 120 narrowband Internet of Things mould group, narrowband Internet of Things mould group can incite somebody to action The wireless cellular network that collected data directly pass through operator transmits data to data center services end, opens early stage The bottleneck of deviation survey equipment echo back data in a manner of cable network.Wherein, narrowband Internet of Things mould group can select HC15-BA protenchyma Networking mould group, because it has the characteristics that super low-power consumption, hypersensitivity, depth are covered, penetrated by force, is inexpensive, in depth Foundation pit supporting pile, high slope, this hypsography low-lying of high and big die plate deviational survey, atmospheric vapour dust content is high, wireless communications environment is poor Complex application context under have unique advantage.
Referring to Fig. 6, in the present embodiment, going out tilt angle to solve existing inclinometer intelligent measurement, but cannot Differentiation is positive inclination or lateral tilt, further includes electronic compass 160, and the electronic compass 160 is connected to main control MCU 110, The electronic compass 160 is used to detect the monitoring point inclined direction of body to be detected.It can be extrapolated by electronic compass 160 Branch stanchion is to measure tilt angle toward which direction inclination, and by obliquity sensor 120, recycles high-precision laser range-finding Sensor 140 accurately measures the vertical height of monitoring point to calculate the displacement occurred when the run-off the straight of monitoring point and incline Tilted direction.Monitoring point tendency displacement can not be calculated and cannot provide accurate safe early warning information by solving existing measurement inclination angle of depending merely on The problems such as.Wherein, when main control MCU 110 detects that the inclined direction of body to be detected changes by electronic compass 160, then Main control MCU 110 by obliquity sensor 120 obtain and laser range sensor 140 calculate body to be detected tendency displacement.Electronics Compass 160 has the characteristics that in axial highly sensitive and linear high-precision, the solid phase knot for the muting sensitivity to quadrature axis having Structure can be used to measure direction and the size in earth magnetic field, and measurement range is from milligauss to 8 Gausses.It can be pushed away using this principle Calculate directional information.
In the present embodiment, early warning is carried out in order to the personnel in time to body periphery to be detected, further includes police instruction Lamp, the alarm lamp are connected to main control MCU 110;The main control MCU 110 is also used to judge whether tendency displacement is more than pre- If threshold value, if be more than preset threshold, warning information is sent to data acquisition center server by obliquity sensor 120, and Control alarm lamp lights.When main control MCU 110 judges that tilt displacement is more than preset threshold, control alarm lamp is lighted, Be capable of in time watchful periphery personnel, while to data acquisition center server send warning information, enable staff and When the danger that may collapse to the body to be detected cope with.
In the present embodiment, in order to reduce power consumption, the main control MCU 110 is also used to when the prison for judging body to be detected The tilt angle of measuring point does not change, then control obliquity sensor 120, laser range sensor 140 within a preset time into Enter suspend mode, while entering low consumption mode.When main control MCU 110 judges that the tilt angle of body to be detected does not change, then control Obliquity sensor 120, laser range sensor 140 enter suspend mode within a preset time, while entering low consumption mode, reduce electricity It can consume, and after being spaced preset time, obliquity sensor 120, laser range sensor 140 are waken up, and enter operating mode, The tilt angle for obtaining body to be detected, judge body to be detected whether run-off the straight.
In the present embodiment, monitoring point can be set in the different location of body to be detected, is installed on different monitoring points Wireless measurement device forms big number by the displacement of the change of pitch angle amount of the multiple installation points of collection, inclined direction, horizontal direction According to the data such as the topography and geomorphology at fusion monitoring scene can be greatly improved early warning accuracy, reduce misinformation probability.
Referring to Fig. 7, in another embodiment, a kind of wireless tilt and Displacement monitor system, including wireless tilt and Displacement monitoring device 710, base station 720 and data acquisition center server 730;
The wireless tilt and displacement monitoring device 710 include main control MCU, obliquity sensor, laser range sensor, nothing Line communication module and power management module;
The obliquity sensor is connected to main control MCU, and the obliquity sensor is used to obtain the monitoring point of body to be detected Tilt angle, and the tilt angle that will acquire is sent to main control MCU;
The laser range sensor is connected to middle control MCU, and the laser range sensor is for measuring body to be detected The initial perpendicular height of monitoring point and reference ground, and the vertical height of measurement is sent to main control MCU;
The main control MCU is used to be judged according to the tilt angle and initial inclination angle for the monitoring point for receiving body to be detected Whether the tilt angle of the monitoring point of body to be detected changes, if changing, according to the tilt angle received and just The tendency that the differential seat angle and initial perpendicular height of beginning tilt angle calculate body to be detected is displaced;
The wireless communication module is connected to main control MCU, what the wireless communication module was used to for main control MCU being calculated The tendency displacement of body to be detected is sent to data acquisition center server 730;
The power management module connection main control MCU, obliquity sensor, laser range sensor and wireless communication module, The power module is used to be main control MCU, obliquity sensor, laser range sensor and wireless communication module power supply;
The base station 720 is connected to data acquisition center server 730 for wireless communication module;
The data acquisition center server 730 be used to receive and store wireless tilt and displacement monitoring device send to Detect the tilt angle, vertical height and tendency displacement of body.
Wireless movement measuring device 710 is mounted on the monitoring point of body to be detected, the position of monitoring point is according to different The height of body to be detected is configured, and body to be detected includes Pile of Deep Foundation Pit, high slope, ancient building etc..When installation, master control MCU measures the initial inclination angle of monitoring point of body to be detected and initial by obliquity sensor and laser range sensor respectively Vertical height, wherein in order to accurately obtain the initial alignment value of tilt angle and vertical height, when installation, repeatedly obtain to be checked The tilt angle and vertical height of the monitoring point of body are surveyed, then assert according to the data repeatedly obtained the monitoring of body to be detected The initial alignment value of point, i.e. initial inclination angle and initial perpendicular height;Then main control MCU is by interval preset time by inclining Angle transducer obtain the tilt angle of body to be detected, such as at interval of 10 minutes, obtain by obliquity sensor to be checked The tilt angle of body is surveyed, wherein preset time can be set according to different bodies to be detected, and main control MCU is sensed by inclination angle When device obtains the tilt angle of body to be detected, it is compared by the tilt angle of acquisition with initial inclination angle and judges inclination angle Whether degree changes, and when the tilt angle even obtained is consistent with initial inclination angle, does not then change, if inconsistent It changes, when main control MCU judges that the tilt angle of body to be detected changes, then main control MCU is according to the inclination angle of acquisition Spend between initial inclination angle differential seat angle and initial perpendicular height calculate according to Pythagorean theorem the monitoring point of body to be detected Tendency displacement, then the tendency being calculated is displaced module by wireless communication and is sent to data acquisition center clothes by main control MCU Business device 730, data acquisition center server 730 carry out Data Analysis Services according to the tendency displacement received, judge to be detected Whether body can collapse, and provide corresponding safe early warning according to analysis structure.The body to be detected of different height can be directed to Accurately monitored.
Power management module is according to needed for main control MCU, obliquity sensor, laser range sensor and wireless communication module Voltage requires to convert out corresponding voltage, provides main control MCU, obliquity sensor, laser range sensor and wireless communication module Power reguirements, wherein power management module will also complete the management of charging and discharging of battery.
In the present embodiment, basic theories basis of the obliquity sensor based on Newton's second law, using " solid pendulum " formula Working principle designs.When obliquity sensor remains static, it is only by the effect of gravity, therefore its gravity vertical axis Angle between sensitive axis of sensor is just required inclination angle.SPI serial digital interface is supported between inclination sensor and outside MCU Communication, is sent to external MCU for institute's measured data, MCU is filtered, after denoising institute's measured data in the form of digital quantity Obtain tilt angle data.Wherein, obliquity sensor uses the SCA100T-D02 double-shaft tilt angle sensor of VTI science and technology, it can be with X is measured, the tilt angle in two faces of Y-axis, surveyed dip resolution is up to 0.002 °, and precision is up to 0.01 °.
In the present embodiment, what main control MCU was selected is STM32F411 microcontroller, and main control MCU is integrated Kernel (has floating point unit), working frequency 100MHz, while can also run and realize outstanding low function under shutdown mode Consumption energy.There are rich communication bus interface, 3 road USART, 5 road SPI, 3 road I2C etc..
In the present embodiment, laser ranging module mainly completes monitoring point and the relative altitude of reference ground measures, and selects Frequency is 2HZ, and range accuracy is the SW-M40 laser range sensor of 3mm.
In the present embodiment, number cannot timely and effective and be easily sent in order to solve the collected data of deviation survey equipment The problem of according to acquisition central server 730.It reports to be substantially in the data of most deviation survey equipment currently on the market and pass through Cable network mode is sent to data acquisition center server 730, and also having small part deviation survey equipment is to pass through short-distance wireless Data line is pooled to inside a local data collector by mode (such as zigbee, Lora), then passes through data collector Data acquisition center server-side is sent in a manner of cable network.This wired mode is wirelessly maximum added with the mode of line The problem of be exactly that cable network often cannot reach project site at engineering initial stage, very complicated is laid, to the peace of deviation survey equipment Dress use brings bottleneck.It cannot be timely and effective and be easily sent to data in order to solve the collected data of deviation survey equipment and adopt The problem of collecting central server 730, the wireless communication module use narrowband Internet of Things mould group, and narrowband Internet of Things mould group can incite somebody to action The wireless cellular network that collected data directly pass through operator transmits data to data center services end, opens early stage The bottleneck of deviation survey equipment echo back data in a manner of cable network.Wherein, narrowband Internet of Things mould group can select HC15-BA protenchyma Networking mould group, because it has the characteristics that super low-power consumption, hypersensitivity, depth are covered, penetrated by force, is inexpensive, in depth Foundation pit supporting pile, high slope, this hypsography low-lying of high and big die plate deviational survey, atmospheric vapour dust content is high, wireless communications environment is poor Complex application context under have unique advantage.
In the present embodiment, go out tilt angle to solve existing inclinometer intelligent measurement, but it is positive for cannot distinguish between Inclination or lateral tilt, further include electrical compass module, and the electronic compass is connected to main control MCU, and the electronic compass is used In the monitoring point inclined direction for detecting body to be detected.Can extrapolate which direction body to be detected is toward by electronic compass Inclination, and tilt angle is measured by obliquity sensor, recycle high-precision laser range-finding sensor to accurately measure monitoring The vertical height of point is to calculate the displacement and inclined direction occurred when the run-off the straight of monitoring point.It solves existing to depend merely on measurement The problems such as inclination angle can not calculate monitoring point tendency displacement and cannot provide accurate safe early warning information.Wherein, when main control MCU is logical When crossing electronic compass and detecting that the inclined direction of body to be detected changes, then main control MCU is obtained and is swashed by obliquity sensor Ligh-ranging sensor calculates the tendency displacement of body to be detected.Electrical compass module has axial highly sensitive and linear high-precision The solid-phase construction of the characteristics of spending, the muting sensitivity to quadrature axis having can be used to measure direction and the size in earth magnetic field, Measurement range is from milligauss to 8 Gausses.Directional information can be extrapolated using this principle.
In the present embodiment, early warning is carried out in order to the personnel in time to body periphery to be detected, further includes police instruction Lamp, the alarm lamp are connected to main control MCU;The main control MCU is also used to judge whether tendency displacement is more than preset threshold, If be more than preset threshold, module sends warning information to data acquisition center server 730 by wireless communication, and controls report Alert indicator light lights.When main control MCU judges that tilt displacement is more than preset threshold, control alarm lamp is lighted, can be timely The personnel on watchful periphery, while warning information is sent to data acquisition center server 730, enable staff in time to this The danger that body to be detected may collapse is coped with.
In the present embodiment, in order to reduce power consumption, the main control MCU is also used to when the monitoring point for judging body to be detected Tilt angle do not change, then control obliquity sensor, laser range sensor enters suspend mode within a preset time, simultaneously Into low consumption mode.When main control MCU judges that the tilt angle of body to be detected does not change, then controls obliquity sensor, swashs Ligh-ranging sensor enters suspend mode within a preset time, while entering low consumption mode, reduces power consumption, and when interval is default After time, obliquity sensor, laser range sensor is waken up, and enter operating mode, obtain the tilt angle of body to be detected, sentence The body to be detected that breaks whether run-off the straight.
In the present embodiment, monitoring point can be set in the different location of body to be detected, is installed on different monitoring points Wireless measurement device forms big number by the displacement of the change of pitch angle amount of the multiple installation points of collection, inclined direction, horizontal direction According to the data such as the topography and geomorphology at fusion monitoring scene can be greatly improved early warning accuracy, reduce misinformation probability.
Referring to Fig. 8, in another embodiment, a kind of wireless tilt and displacement monitoring method include the following steps:
Initial alignment value obtaining step S810:The initial inclination of the monitoring point of body to be detected is obtained by obliquity sensor Degree, and the monitoring point of body to be detected and the initial perpendicular height of reference ground are obtained by laser range sensor;
Detect numerical value obtaining step S820:It is spaced preset time, the monitoring point of body to be detected is obtained by obliquity sensor Tilt angle;
Tilt judgment step S830:According to initial inclination angle, judge the monitoring point of body to be detected tilt angle whether It changes;It is high according to the differential seat angle of the tilt angle and initial inclination angle received and initial perpendicular if changing Degree calculates the tendency displacement of body to be detected, and the tendency displacement for the body to be detected being calculated is sent to data acquisition center service Device.
Measure the initial inclination angle of the monitoring point of body to be detected respectively by obliquity sensor and laser range sensor And initial perpendicular height, wherein in order to accurately obtain the initial alignment value of tilt angle and vertical height, when installation, repeatedly obtain The tilt angle and vertical height of the monitoring point of body to be detected are taken, then carries out assert body to be detected according to the data repeatedly obtained Monitoring point initial alignment value, i.e. initial inclination angle and initial perpendicular height;Then by interval preset time by inclining Angle transducer obtain the tilt angle of body to be detected, such as at interval of 10 minutes, obtain by obliquity sensor to be checked The tilt angle of body is surveyed, wherein preset time can be set according to different bodies to be detected, be obtained by obliquity sensor When the tilt angle of body to be detected, it is compared whether judge tilt angle with initial inclination angle by the tilt angle of acquisition It changes, when the tilt angle even obtained is consistent with initial inclination angle, does not then change, become if inconsistent Change, when the tilt angle for judging body to be detected changes, then according between the tilt angle of acquisition and initial inclination angle Differential seat angle and initial perpendicular height according to Pythagorean theorem calculate body to be detected monitoring point tendency be displaced, then will calculate To tendency displacement module is sent to data acquisition center server by wireless communication, data acquisition center server is according to connecing The tendency displacement received carries out Data Analysis Services, judges whether body to be detected can collapse, and is provided according to analysis structure Corresponding safe early warning.It can accurately be monitored for the body to be detected of different height.
In the present embodiment, early warning, the inclination judgement step are carried out in order to the personnel in time to body periphery to be detected It further include step after rapid:Judge whether tendency displacement reaches preset threshold, if reaching preset threshold, to data acquisition center Server sends warning information, is simultaneously emitted by alarm signal.When main judgement tilt displacement is more than preset threshold, then sound an alarm Signal, is capable of the personnel on timely watchful periphery, while sending warning information to data acquisition center server, enables staff The enough danger that may be collapsed to the body to be detected in time is coped with.
In the present embodiment, in order to detect the inclined direction of body to be detected, the initial alignment value obtaining step is also Including:The initial tilt direction of the monitoring point of body to be detected is obtained by electronic compass;
The detection numerical value obtaining step further includes:It is spaced preset time, the prison of body to be detected is obtained by electronic compass The inclined direction of measuring point;
The inclination judgment step specifically includes:Be compared according to the tilt angle of acquisition with initial inclination angle or It is compared according to the inclined direction of acquisition with initial tilt direction, if tilt angle or inclined direction change, basis The tendency that the differential seat angle and initial perpendicular height of the tilt angle and initial inclination angle that receive calculate body to be detected is displaced, together When direction difference obtained according to the inclined direction that receives and initial tendency direction calculating, by the tendency for the body to be detected being calculated Displacement and direction difference are sent to data acquisition center server.
Body to be detected can be extrapolated by electronic compass to be surveyed toward which direction inclination, and by obliquity sensor Tilt angle is measured, high-precision laser range-finding sensor is recycled to accurately measure the vertical height of monitoring point to calculate prison The displacement and inclined direction occurred when measuring point run-off the straight.Monitoring point tendency position can not be calculated by solving existing measurement inclination angle of depending merely on The problems such as moving and accurate safe early warning information cannot be provided.Wherein, when the inclination for detecting body to be detected by electronic compass When direction changes, then it is displaced by the tendency that obliquity sensor acquisition and laser range sensor calculate body to be detected.
It should be noted that being not intended to limit although the various embodiments described above have been described herein Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with Upper technical solution is used in other related technical areas, is included within scope of patent protection of the invention.

Claims (10)

1. a kind of wireless tilt and displacement monitoring device, which is characterized in that passed including main control MCU, obliquity sensor, laser ranging Sensor, wireless communication module and power management module;
The obliquity sensor is connected to main control MCU, and the obliquity sensor is used to obtain the inclination of the monitoring point of body to be detected Angle, and the tilt angle that will acquire is sent to main control MCU;
The laser range sensor is connected to middle control MCU, and the laser range sensor is used to measure the monitoring of body to be detected The initial perpendicular height of point and reference ground, and the vertical height of measurement is sent to main control MCU;
The main control MCU is used to be judged according to the tilt angle for the monitoring point for receiving body to be detected with initial inclination angle to be checked Whether the tilt angle of monitoring point for surveying body changes, if changing, according to the tilt angle received with initially incline The tendency that the differential seat angle and initial perpendicular height of rake angle calculate body to be detected is displaced;
The wireless communication module is connected to main control MCU, and the wireless communication module is to be checked for main control MCU to be calculated The tendency displacement for surveying body is sent to data acquisition center server;
The power management module connection main control MCU, obliquity sensor, laser range sensor and wireless communication module, it is described Power module is used to be main control MCU, obliquity sensor, laser range sensor and wireless communication module power supply.
2. wireless tilt and displacement monitoring device according to claim 1, which is characterized in that the obliquity sensor is twin shaft Obliquity sensor.
3. wireless tilt and displacement monitoring device according to claim 1, which is characterized in that the wireless communication module is narrow Band Internet of Things mould group.
4. wireless tilt and displacement monitoring device according to claim 1, which is characterized in that it further include electronic compass, it is described Electronic compass is connected to main control MCU, and the electronic compass is used to detect the monitoring point inclined direction of body to be detected.
5. wireless tilt and displacement monitoring device according to claim 1, which is characterized in that it further include alarm lamp, institute It states alarm lamp and is connected to main control MCU;
The main control MCU is also used to judge whether tendency displacement is more than if that preset threshold passes through channel radio be more than preset threshold Believe that module sends warning information to data acquisition center server, and controls alarm lamp and light.
6. wireless tilt and displacement monitoring device according to claim 1, which is characterized in that the main control MCU is also used to work as Judge that the tilt angle of the monitoring point of body to be detected does not change, then controls obliquity sensor, laser range sensor pre- If entering suspend mode in the time, while entering low consumption mode.
7. a kind of wireless tilt and Displacement monitor system, which is characterized in that including wireless tilt and displacement monitoring device, base station and Data acquisition center server;
The wireless tilt and displacement monitoring device are any wireless tilt of claim 1 to 6 and displacement monitoring device;
The base station is connected to data acquisition center server for wireless communication module;
The data acquisition center server is used to receive and store the body to be detected that wireless tilt and displacement monitoring device are sent Tilt angle, vertical height and tendency displacement.
8. a kind of wireless tilt and displacement monitoring method, which is characterized in that include the following steps:
Initial alignment value obtaining step:The initial inclination angle of the monitoring point of body to be detected is obtained by obliquity sensor, and logical It crosses laser range sensor and obtains the monitoring point of body to be detected and the initial perpendicular height of reference ground;
Detect numerical value obtaining step:It is spaced preset time, the inclination angle of the monitoring point of body to be detected is obtained by obliquity sensor Degree;
Tilt judgment step:According to initial inclination angle, judge whether the tilt angle of the monitoring point of body to be detected changes;
If changing, calculated according to the differential seat angle of the tilt angle and initial inclination angle received and initial perpendicular height The tendency of body to be detected is displaced, and the tendency displacement for the body to be detected being calculated is sent to data acquisition center server.
9. wireless tilt and displacement monitoring method according to claim 8, which is characterized in that after the inclination judgment step It further include step:
Judge whether tendency displacement reaches preset threshold, if reaching preset threshold, is sent to data acquisition center server pre- Alert information, is simultaneously emitted by alarm signal.
10. wireless tilt and displacement monitoring method according to claim 8, which is characterized in that the initial alignment value obtains Step further includes:The initial tilt direction of the monitoring point of body to be detected is obtained by electronic compass;
The detection numerical value obtaining step further includes:It is spaced preset time, the monitoring point of body to be detected is obtained by electronic compass Inclined direction;
The inclination judgment step specifically includes:Be compared according to the tilt angle of acquisition with initial inclination angle or according to The inclined direction of acquisition is compared with initial tilt direction, if tilt angle or inclined direction change, according to reception To tilt angle and the differential seat angle and initial perpendicular height of initial inclination angle calculate the tendency of body to be detected and be displaced, while root Direction difference is obtained according to the inclined direction received and initial tendency direction calculating, the tendency for the body to be detected being calculated is displaced And direction difference is sent to data acquisition center server.
CN201811034976.5A 2018-09-06 2018-09-06 A kind of wireless tilt and displacement monitoring device, system and method Pending CN108917718A (en)

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