CN112013813A - Building settlement monitoring method, monitoring device and monitoring system - Google Patents
Building settlement monitoring method, monitoring device and monitoring system Download PDFInfo
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Abstract
The invention discloses a building settlement monitoring method, a monitoring device and a monitoring system. Each of the plurality of buildings is provided with a monitoring point, and all the monitoring points are approximately positioned in the same horizontal plane; emitting a first light spot from a monitoring point 1 to a first position of a monitoring point 2, emitting the first light spot from the monitoring point 2 to a first position of a monitoring point 3, and so on, and emitting the first light spot from a monitoring point N to the first position of the monitoring point 1 to form a first closed loop; meanwhile, a second light spot is emitted from the monitoring point 1 to the second position of the monitoring point N, a second light spot is emitted from the monitoring point N to the second position of the monitoring point N-1, and the like, and a second light spot is emitted from the monitoring point 2 to the second position of the monitoring point 1 to form a second closed loop. The invention realizes double check through the laser double-loop, has the characteristics of moderate cost and high precision, and effectively solves the problems of low efficiency and high price of GPS positioning monitoring of the traditional building monitoring method.
Description
Technical Field
The invention belongs to the technical field of building monitoring, and particularly relates to a building settlement monitoring method, a monitoring device and a monitoring system.
Background
With the rapid development of economy in China and the continuous improvement of comprehensive strength, a high-rise building is pulled out, and huge potential safety hazards are brought to surrounding buildings in the process of foundation pit excavation. And therefore require regular monitoring of the building. The traditional manual method has high cost, low accuracy and more restriction factors. And the cost of accurate positioning monitoring by using the GPS is too high.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a building settlement monitoring method, a monitoring device and a monitoring system, which have the characteristics of moderate cost and high precision and effectively solve the problems of low efficiency and high price of GPS positioning monitoring of the traditional building monitoring method.
To achieve the above object, according to one aspect of the present invention, there is provided a building settlement monitoring method including: setting a monitoring point on each of a plurality of buildings, wherein the monitoring points are respectively marked as 1,2, …, N and N are natural numbers, N is more than or equal to 3, and all the monitoring points are approximately positioned in the same horizontal plane; emitting a first light spot from a monitoring point 1 to a first position of a monitoring point 2, emitting the first light spot from the monitoring point 2 to a first position of a monitoring point 3, and so on, and emitting the first light spot from a monitoring point N to the first position of the monitoring point 1 to form a first closed loop; meanwhile, a second light spot is emitted from the monitoring point 1 to the second position of the monitoring point N, a second light spot is emitted from the monitoring point N to the second position of the monitoring point N-1, and the like, and a second light spot is emitted from the monitoring point 2 to the second position of the monitoring point 1 to form a second closed loop; acquiring a first light spot image and a second light spot image of each monitoring point; data processing: and comparing the acquired first light spot image and the acquired second light spot image of each monitoring point with the reference images thereof respectively, and calculating the first light spot displacement and the second light spot displacement to obtain the settlement of the monitoring point from which the first light spot comes relative to the monitoring point and the settlement of the monitoring point from which the second light spot comes relative to the monitoring point.
In some embodiments, the method further comprises: selecting one monitoring point from all monitoring points as a reference monitoring point, calibrating the reference monitoring point, and determining the settlement amount of the reference monitoring point; the data processing further comprises: and determining the settlement amount of other monitoring points according to the settlement amount of the reference monitoring point.
In some embodiments, the first spot and the second spot are both laser spots, and are generated by a first point laser and a second point laser installed at each monitoring point; installing a first target and a second target at a first position and a second position of each monitoring point, and irradiating laser spots on the first target and the second target; and a first camera and a second camera are installed at each monitoring point, the first camera collects laser spot images on the first target, and the second camera collects laser spot images on the second target.
In some embodiments, the method further comprises: monitoring the inclination angle of each monitoring point; synchronously acquiring a first light spot image, a second light spot image and an inclination angle at each monitoring point, sending acquired data and identity information of the monitoring points to a cloud server, and storing the acquired data and the identity information in a database of the cloud server; and calibrating the reference monitoring point by using the total station, sending the settlement of the reference monitoring point to the cloud server, and storing the settlement into a database of the cloud server.
In some embodiments, the user calls data in the database of the cloud service through the PC and performs data processing operations to obtain the settlement amount for each monitoring point.
In some embodiments, the data obtained by the data processing operation is numbered and then stored in the database of the cloud server again; and displaying the settlement amount and the inclination angle of each monitoring point in real time through a visual interface.
In some embodiments, the PC activates an alarm system to alarm when the settlement or tilt angle of the building exceeds a set threshold.
According to another aspect of the present invention, there is provided a building settlement monitoring device for installation at a monitoring point on a building, the monitoring point being located on the building being monitored; the monitoring device comprises a first light emitter, a second light emitter, a first light receiver, a second light receiver, a first image collector, a second image collector, a controller and a communication module; the first light receiver and the second light receiver are used for receiving a light source emitted by the outside and enabling the light source to form a light spot image; the first image collector is used for collecting light spot images formed on the first light receiver, and the second image collector is used for collecting light spot images formed on the second light receiver; the controller is used for sending the data acquired by the first image acquisition device and the second image acquisition device and the identity information of the monitoring point out through the communication module.
In some embodiments, the light emitter is a point laser, the light receiver is a target, the image collector is a camera, the controller is an ARM development board, and the communication module is a wireless communication module.
According to another aspect of the invention, a building settlement monitoring system is provided, which comprises a data processing system and N settlement monitoring devices installed on monitoring points of N buildings, wherein the N settlement monitoring devices are respectively marked as 1,2, …, N is a natural number and is more than or equal to 3, and the buildings, the monitoring points and the settlement monitoring devices are in one-to-one correspondence; the N monitoring points are approximately positioned in the same horizontal plane, and the N settlement monitoring devices are installed according to the same standard; each settlement monitoring device includes: the device comprises a first light emitter, a second light emitter, a first light receiver, a second light receiver, a first image collector, a second image collector, a controller and a communication module; a first optical transmitter of the settlement monitoring device 1 points to a first optical receiver of the settlement monitoring device 2, a first optical transmitter of the settlement monitoring device 2 points to a first optical receiver of the settlement monitoring device 3, and so on, a first optical transmitter of the settlement monitoring device N points to a first optical receiver of the settlement monitoring device 1 to form a first closed loop structure; a second optical transmitter of the settlement monitoring device 1 points to a second optical receiver of the settlement monitoring device N, a second optical transmitter of the settlement monitoring device N points to a second optical receiver of the settlement monitoring device N-1, and so on, a second optical transmitter of the settlement monitoring device 2 points to a second optical receiver of the settlement monitoring device 1 to form a second closed loop structure; in each settlement monitoring device, a first image collector is aligned to a first light receiver and used for collecting a first light spot image on the first light receiver, a second image collector is aligned to a second light receiver and used for collecting a second light spot image on the second light receiver, and a controller is used for sending the first light spot image, the second light spot image and the identity information of the corresponding monitoring point to a data processing system through a communication module; the data processing system is used for comparing the acquired first light spot image and the acquired second light spot image of each monitoring point with the reference image thereof respectively, calculating the first light spot displacement and the second light spot displacement, and obtaining the settlement of the monitoring point from which the first light spot comes relative to the monitoring point and the settlement of the monitoring point from which the second light spot comes relative to the monitoring point.
In some embodiments, the system further comprises a reference monitoring point calibration device for calibrating the reference monitoring point and determining the settlement amount of the reference monitoring point, wherein the reference monitoring point is one monitoring point selected from the N monitoring points; the data processing system is further configured to determine settlement amounts of other monitoring points based on the settlement amounts of the reference monitoring point.
In some embodiments, the reference monitoring point calibration device is a total station.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: based on the internet of things technology, the monitoring points are surrounded into a circle to form a closed loop structure, double verification is achieved through a laser double-circuit, deformation information of a building is measured in real time by using an inclination angle sensor and an image processing technology, non-contact measurement is achieved, the monitoring points are calibrated by using a total station, and measurement accuracy is guaranteed. The invention has wide application scene, and has the characteristics of moderate cost and high precision.
Drawings
Fig. 1 is a schematic structural view of a building settlement monitoring device according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of an installation of a building settlement monitoring device according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a building settlement monitoring system of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the building settlement monitoring device according to the embodiment of the present invention has an external shape similar to a house structure, and is made of a metal waterproof material, and has a visor structure at the top and a square hollow structure at the bottom. Be provided with monitoring devices's functional unit in hollow structure, specifically include: the device comprises a first point laser, a second point laser, a first target, a second target, a first camera, a second camera, a tilt angle sensor, an ARM development board and a wireless communication module. The lens of the first camera is aligned to the first target and used for collecting the laser spot image on the first target. And the lens of the second camera is aligned to the second target and used for acquiring the laser spot image on the second target. The inclination angle sensor is used for collecting inclination angle data of the monitoring point. The ARM development board is used for controlling the camera and the tilt sensor to synchronously acquire data, and transmits the acquired data and the identity information of the monitored object through the wireless communication module so as to process the data.
In the embodiment of the invention, four buildings are selected and respectively numbered A, B, C, D, as shown in fig. 2, each building is provided with a monitoring point which is correspondingly marked as monitoring point 1, monitoring point 2, monitoring point 3 and monitoring point 4, and each monitoring point is provided with a building settlement monitoring device. The first point-shaped laser of the monitoring point 1 points to the first target of the monitoring point 2, the first point-shaped laser of the monitoring point 2 points to the first target of the monitoring point 3, the first point-shaped laser of the monitoring point 3 points to the first target of the monitoring point 4, and the first point-shaped laser of the monitoring point 4 points to the first target of the monitoring point 1, so that a first closed loop structure is formed. The second point-like laser of monitoring point 1 points to the second target of monitoring point 4, the second point-like laser of monitoring point 4 points to the second target of monitoring point 3, the second point-like laser of monitoring point 3 points to the second target of monitoring point 2, and the second point-like laser of monitoring point 2 points to the second target of monitoring point 1, forming a second closed loop structure.
In some embodiments, each monitoring point has the same height, that is, each monitoring point is in the same horizontal plane. In some embodiments, the distance between any two monitoring points is no more than 50 meters. In some embodiments, a total station is used to continuously calibrate one of the monitoring points, so as to ensure the monitoring accuracy.
As shown in fig. 3, during operation, a laser spot emitted by the first spot-shaped laser of the monitoring point 1 irradiates on the first target of the monitoring point 2, a laser spot emitted by the first spot-shaped laser of the monitoring point 2 irradiates on the first target of the monitoring point 3, a laser spot emitted by the first spot-shaped laser of the monitoring point 3 irradiates on the first target of the monitoring point 4, and a laser spot emitted by the first spot-shaped laser of the monitoring point 4 irradiates on the first target of the monitoring point 1, so as to form a first closed loop 1-2-3-4-1. The laser spot emitted by the second point-like laser of the monitoring point 1 irradiates on the second target of the monitoring point 4, the laser spot emitted by the second point-like laser of the monitoring point 4 irradiates on the second target of the monitoring point 3, the laser spot emitted by the second point-like laser of the monitoring point 3 irradiates on the second target of the monitoring point 2, and the laser spot emitted by the second point-like laser of the monitoring point 2 irradiates on the second target of the monitoring point 1, so that a second closed loop 1-4-3-2-1 is formed.
A monitoring point 2 corresponding to the building B is arranged in a monitoring device of the monitoring point 2, a laser spot emitted by a first point-shaped laser irradiates on a first target of a monitoring point 3, and a laser spot emitted by a second point-shaped laser irradiates on a second target of the monitoring point 1; a laser spot image emitted by a first point laser of a monitoring point 1 is formed on the first target, and a laser spot image emitted by a second point laser of a monitoring point 3 is formed on the second target; the first camera gathers the laser spot image on the first target, and the second camera gathers the laser spot image on the second target, and inclination sensor gathers the angle of inclination data of monitoring point, and ARM development board control first camera, second camera and inclination sensor gathers data in step to after packing data and the monitoring point serial number of gathering, send cloud ware through 4G communication module, deposit in cloud ware's database.
Similarly, at the monitoring point 3 that building C corresponds, install in the monitoring devices of monitoring point 3, ARM development board sends the cloud server through 4G communication module after packing first camera, second camera and the synchronous data and the monitoring point serial number of gathering of inclination sensor, deposits in the database of cloud server. Monitoring point 4 that corresponds at building D installs in monitoring devices of monitoring point 4, and ARM development board sends cloud server through 4G communication module after packing first camera, second camera and the synchronous data and the monitoring point serial number of gathering of angular transducer, deposits in cloud server's database. The monitoring point 1 corresponding to the building A is installed in the monitoring device of the monitoring point 1, and after the ARM development board packs the data synchronously acquired by the first camera, the second camera and the tilt sensor and the monitoring point number, the data are sent to the cloud server through the 4G communication module and stored in the database of the cloud server.
In some embodiments, a user calls data in a database of the cloud server through a PC, and performs data processing to obtain settlement data of each monitoring point.
In some embodiments, a certain time t is selected as a reference time, and at each monitoring point, an image acquired by the camera at the time t is a reference image. In some embodiments, at each monitoring point, after time t, the camera continues to acquire laser spot images, processes the images acquired by the camera, compares the current image with the reference image, and calculates the displacement of the spot in the field of view of the lens, that is, the settlement of the monitoring point where the spot laser generating the spot is located relative to the monitoring point at the current time. For example, at the monitoring point 2, the first camera collects an image at the time t as a first reference image, after the time t, the first camera continues to collect a laser spot image, processes the image collected by the first camera, compares the current image with the first reference image, and calculates the displacement of the spot in the lens field, namely the settlement of the monitoring point 1 at the current time relative to the monitoring point 2; and the second camera collects an image at the moment t as a second reference image, the second camera continues to collect the laser spot image after the moment t, the image collected by the second camera is processed, the current image is compared with the second reference image, and the displacement of the spot in the lens visual field is calculated, namely the settlement of the monitoring point 3 at the current moment relative to the monitoring point 2.
Similarly, at the monitoring point 3, the images collected by the first camera and the second camera are processed, the current image is respectively compared with the first reference image and the second reference image, and the displacement of the light spot in the lens visual field is calculated, namely the settlement of the monitoring point 2 relative to the monitoring point 3 at the current moment and the settlement of the monitoring point 4 relative to the monitoring point 3 at the current moment. And at the monitoring point 4, processing the images collected by the first camera and the second camera, respectively comparing the current image with the first reference image and the second reference image, and calculating the displacement of the light spot in the lens field, namely the settlement of the monitoring point 3 relative to the monitoring point 4 at the current moment and the settlement of the monitoring point 1 relative to the monitoring point 4 at the current moment. At the monitoring point 1, processing the images collected by the first camera and the second camera, respectively comparing the current image with the first reference image and the second reference image, and calculating the displacement of the light spot in the lens field, namely the settlement of the monitoring point 4 at the current moment relative to the monitoring point 1 and the settlement of the monitoring point 2 at the current moment relative to the monitoring point 1.
Two closed loops are formed by the first closed loop and the second closed loop, double verification can be performed, and the measurement precision is further improved.
In some embodiments, one monitoring point is selected as a reference monitoring point, the reference monitoring point is calibrated by using a total station, the settling amount of the reference monitoring point is determined, and the settling amount is sent to a cloud server and stored in a database of the cloud server.
In some embodiments, the settlement amount of the building corresponding to the reference monitoring point is determined according to the settlement amount of the reference monitoring point. In some embodiments, settlement amounts of other monitoring points are calculated according to the settlement amount of the reference monitoring point, and then settlement amounts of buildings corresponding to the other monitoring points are determined. For example, a monitoring point 2 is selected as a reference monitoring point, a total station is utilized to determine the settlement amount of the monitoring point 2, and in a first closed loop 1-2-3-4-1, a first settlement amount T11 of the monitoring point 1 can be directly obtained according to the relative settlement amount of a 1-2 branch, and a second settlement amount T12 of the monitoring point 1 can also be obtained according to the relative settlement amount of a 2-3-4-1 branch; in the second closed loop 1-4-3-2-1, the third settling amount T13 of the monitoring point 1 can be directly obtained according to the relative settling amount of the branch 2-1, and the fourth settling amount T14 of the monitoring point 1 can also be obtained according to the relative settling amount of the branch 1-4-3-2.
In some embodiments, for a certain monitoring point, four settlement amount data obtained according to the settlement amount of the reference monitoring point and the relative settlement amount are averaged to obtain the settlement amount of the monitoring point. For example, the settling amount T1 of monitoring point 1 is (T11+ T12+ T13+ T14)/4.
In some embodiments, for a certain monitoring point, the settlement amount data with the largest difference from the other three settlement amount data in the four settlement amount data obtained according to the settlement amount and the relative settlement amount of the reference monitoring point is removed, and the remaining three settlement amount data are averaged to obtain the settlement amount of the monitoring point. For example, if T11 is 1.4m, T12 is 1.6m, T13 is 1.4m, and T14 is 2m, T14 is removed, and the amount of sedimentation T1 at monitoring point 1 becomes (T11+ T12+ T13)/3.
In some embodiments, for a certain monitoring point, weight division is performed on four settlement amount data obtained according to the settlement amount and the relative settlement amount of a reference monitoring point, the closer a branch corresponding to the settlement amount data is to the reference monitoring point, the larger the weight is, the farther the branch corresponding to the settlement amount data is from the reference monitoring point, the smaller the weight is, and the settlement amount of the monitoring point is calculated according to the four settlement amount data and the weights corresponding thereto. For example, the first settling amount T11 of monitoring point 1 corresponds to 1-2 branches, the weight 3/4, the second settling amount T12 of monitoring point 1 corresponds to 2-3-4-1 branches, the weight 1/4, the third settling amount T13 of monitoring point 1 corresponds to 2-1 branches, the weight 3/4, the fourth settling amount T14 of monitoring point 1 corresponds to 1-4-3-2 branches, and the weight 1/4, the settling amount of monitoring point 1 is calculated as T1, T11, T6862, 68656, T1, T13, T14, 1/4, or T1, T1 + T1, or T1.
In some embodiments, for a certain monitoring point, the settlement amount of the monitoring point is calculated only according to the settlement amount data obtained according to the relative settlement amount of the branch closer to the reference monitoring point in the closed loop, without considering the settlement amount data obtained according to the relative settlement amount of the branch farther from the reference monitoring point in the closed loop. For example, regardless of the second settling amount T12 in the first closed loop 1-2-3-4-1 and the fourth settling amount T14 in the second closed loop 1-4-3-2-1, the settling amount of the monitoring point 1 is calculated to be T1 ═ T11, T1 ═ T13, or T1 ═ T11+ T13)/2, based only on the first settling amount T11 in the first closed loop 1-2-3-4-1 and the third settling amount T13 in the second closed loop 1-4-3-2-1.
In some embodiments, the processed data is numbered and then stored in the database of the cloud server again. In some embodiments, the inclination angle and settlement data of each monitoring point are displayed in real time through a visual interface, so that the deformation information of the building can be monitored in real time.
In some embodiments, a threshold value is preset, and when the settlement amount or the inclination angle of the building exceeds the set threshold value, the PC starts an alarm system to give an alarm, and relevant personnel are warned to pay attention to safety and take measures.
The total station requires high precision of distance measurement and angle measurement and is convenient to install. In some embodiments, the total station brand is suzhou light, model HTS212S, ranging accuracy: + (2mm +2 x 10-6. D), angle measurement precision: 2', communication mode: RS-232C/USB/SD card/Bluetooth.
The point laser requires larger power, small volume and smaller light spot. The target requires a rough surface, reducing the laser scattering phenomenon. In some embodiments, both the spot laser and the target need to be customized. The spot laser has small specification, convenient installation, 400mw of power, strong light transmission and small light spot. In some embodiments, the targets include a first target and a second target, both of which are cross targets, the first target and the second target forming a single unit along one edge with a 90 ° included angle. In some embodiments, the surface of the first target and the second target is frosted to prevent scattering of the laser light, and the specification is 50cm by 50 cm.
The camera requires a high pixel and a long focal length, and the installation position of the camera is aligned with the target. In some embodiments, the camera is of the OV2640 model: the ATK-OV2640 camera module is a high-performance camera module produced by ALIENTEK.
The inclination angle sensor is required to be capable of measuring the offset angles of three axes of the building, and the inclination angle sensor of each monitoring point is capable of measuring the inclination angle of the monitoring point. In some embodiments, the tilt sensor is a Vicat intelligent brand, model SINDT, weight 100g, size 55 × 36 × 24mm, operating current 0.01A, and operating voltage 5V.
The ARM development board requires high performance, low power consumption and small size, and can control the camera and the tilt sensor to perform synchronous data acquisition. In some embodiments, the ARM development board model is i.mx6ul, which is developed by the research and development team of weskal in shanghai china, the application processor is based on an ARM Cortex-a7 kernel with a dominant frequency up to 528MHz, and includes an integrated power management unit, reducing the complexity of an external power supply and simplifying the power-on timing sequence. The method has the characteristics of high performance, low power consumption, small size, safety, encryption and low price. The OV2640 camera and the SINDT tilt angle sensor can be controlled to synchronously acquire data. Of course, other types of controllers can be used to replace the ARM development board to realize the corresponding functions.
The communication module is required to have good compatibility, large communication data volume and high communication speed. In some embodiments, the communication module is a 4G communication module that can transmit data quickly. Of course, other types of communication modules may be employed.
The cloud server is required to be capable of being accessed quickly, convenient to store and high in safety and reliability. In some embodiments, the cloud server is an Tencent cloud server, can be accessed quickly, and is convenient to store, high in safety and reliability.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A building settlement monitoring method, comprising:
setting a monitoring point on each of a plurality of buildings, wherein the monitoring points are respectively marked as 1,2, …, N and N are natural numbers, N is more than or equal to 3, and all the monitoring points are approximately positioned in the same horizontal plane;
emitting a first light spot from a monitoring point 1 to a first position of a monitoring point 2, emitting the first light spot from the monitoring point 2 to a first position of a monitoring point 3, and so on, and emitting the first light spot from a monitoring point N to the first position of the monitoring point 1 to form a first closed loop; meanwhile, a second light spot is emitted from the monitoring point 1 to the second position of the monitoring point N, a second light spot is emitted from the monitoring point N to the second position of the monitoring point N-1, and the like, and a second light spot is emitted from the monitoring point 2 to the second position of the monitoring point 1 to form a second closed loop;
acquiring a first light spot image and a second light spot image of each monitoring point;
data processing: and comparing the acquired first light spot image and the acquired second light spot image of each monitoring point with the reference images thereof respectively, and calculating the first light spot displacement and the second light spot displacement to obtain the settlement of the monitoring point from which the first light spot comes relative to the monitoring point and the settlement of the monitoring point from which the second light spot comes relative to the monitoring point.
2. The building settlement monitoring method of claim 1, further comprising: selecting one monitoring point from all monitoring points as a reference monitoring point, calibrating the reference monitoring point, and determining the settlement amount of the reference monitoring point;
the data processing further comprises: and determining the settlement amount of other monitoring points according to the settlement amount of the reference monitoring point.
3. The building settlement monitoring method according to claim 2, wherein the first and second light spots are both laser light spots generated by a first spot laser and a second spot laser installed at respective monitoring points; installing a first target and a second target at a first position and a second position of each monitoring point, and irradiating laser spots on the first target and the second target; and a first camera and a second camera are installed at each monitoring point, the first camera collects laser spot images on the first target, and the second camera collects laser spot images on the second target.
4. The building settlement monitoring method of claim 2 or 3, further comprising: monitoring the inclination angle of each monitoring point; synchronously acquiring a first light spot image, a second light spot image and an inclination angle at each monitoring point, sending acquired data and identity information of the monitoring points to a cloud server, and storing the acquired data and the identity information in a database of the cloud server; and calibrating the reference monitoring point by using the total station, sending the settlement of the reference monitoring point to the cloud server, and storing the settlement into a database of the cloud server.
5. The building settlement monitoring method according to claim 4, wherein a user calls data in a database of cloud services through a PC and performs the data processing operation to obtain the settlement amount of each monitoring point.
6. The building settlement monitoring method according to claim 5, wherein the data obtained by the data processing operation is numbered and then stored in the database of the cloud server again; and displaying the settlement amount and the inclination angle of each monitoring point in real time through a visual interface.
7. The building settlement monitoring method of claim 6, wherein the PC starts an alarm system to give an alarm when the settlement amount or the inclination angle of the building exceeds a set threshold value.
8. A building settlement monitoring device is characterized by being used for being installed on a monitoring point of a building, wherein the monitoring point is arranged on the monitored building; the monitoring device comprises a first light emitter, a second light emitter, a first light receiver, a second light receiver, a first image collector, a second image collector, a controller and a communication module; the first light receiver and the second light receiver are used for receiving a light source emitted by the outside and enabling the light source to form a light spot image; the first image collector is used for collecting light spot images formed on the first light receiver, and the second image collector is used for collecting light spot images formed on the second light receiver; the controller is used for sending the data acquired by the first image acquisition device and the second image acquisition device and the identity information of the monitoring point out through the communication module.
9. A building settlement monitoring system is characterized by comprising a data processing system and N settlement monitoring devices arranged on monitoring points of N buildings, wherein the N settlement monitoring devices are respectively marked as 1,2, …, N is a natural number and is more than or equal to 3, and the buildings, the monitoring points and the settlement monitoring devices correspond to one another; the N monitoring points are approximately positioned in the same horizontal plane, and the N settlement monitoring devices are installed according to the same standard; each settlement monitoring device includes: the device comprises a first light emitter, a second light emitter, a first light receiver, a second light receiver, a first image collector, a second image collector, a controller and a communication module; a first optical transmitter of the settlement monitoring device 1 points to a first optical receiver of the settlement monitoring device 2, a first optical transmitter of the settlement monitoring device 2 points to a first optical receiver of the settlement monitoring device 3, and so on, a first optical transmitter of the settlement monitoring device N points to a first optical receiver of the settlement monitoring device 1 to form a first closed loop structure; a second optical transmitter of the settlement monitoring device 1 points to a second optical receiver of the settlement monitoring device N, a second optical transmitter of the settlement monitoring device N points to a second optical receiver of the settlement monitoring device N-1, and so on, a second optical transmitter of the settlement monitoring device 2 points to a second optical receiver of the settlement monitoring device 1 to form a second closed loop structure; in each settlement monitoring device, a first image collector is aligned to a first light receiver and used for collecting a first light spot image on the first light receiver, a second image collector is aligned to a second light receiver and used for collecting a second light spot image on the second light receiver, and a controller is used for sending the first light spot image, the second light spot image and the identity information of the corresponding monitoring point to a data processing system through a communication module; the data processing system is used for comparing the acquired first light spot image and the acquired second light spot image of each monitoring point with the reference image thereof respectively, calculating the first light spot displacement and the second light spot displacement, and obtaining the settlement of the monitoring point from which the first light spot comes relative to the monitoring point and the settlement of the monitoring point from which the second light spot comes relative to the monitoring point.
10. The building settlement monitoring system of claim 9, further comprising a reference monitoring point calibration device for calibrating a reference monitoring point to determine a settlement amount of the reference monitoring point, the reference monitoring point being one monitoring point selected from the N monitoring points; the data processing system is also used for determining settlement amounts of other monitoring points according to the settlement amount of the reference monitoring point.
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