CN107063168B - Building deformation monitoring and early warning system that collapses - Google Patents

Abstract

The invention discloses a building deformation monitoring and collapse early warning system. The system includes a building structure displacement detection unit and an early warning control unit. The building structure displacement detection unit includes a first detection unit, and the first detection unit is used to detect the building structure. The displacement and/or velocity of the measured point; the first detection unit includes at least one long-distance detection component, and the detection component is used to obtain the displacement and/or velocity change process of the at least one measured point; the early warning control unit It is used for early warning control according to the measurement results of the displacement detection unit. The building deformation monitoring and early warning system of the present invention can realize remote non-contact and accurate monitoring of building deformation, and realize timely and accurate early warning according to the monitored building deformation data.

Description

Building deformation monitoring and collapse early warning system

technical field

The invention belongs to the technical field of public safety, and in particular relates to a system that can be used for building deformation monitoring and collapse early warning.

Background technique

The collapse of buildings, especially high-rise buildings, seriously endangers people's public safety, especially when the building suffers from accidents such as fire, the probability of building collapse is greatly increased. In other words, it is impossible to predict whether a building in a burning state will collapse, let alone when it will collapse. Usually, firefighters can only perceive and judge based on experience and observation of on-site conditions. There is no safety warning for people in the building. Under normal circumstances, buildings will deform to different degrees before they collapse, and the most important characteristic parameter of deformation is displacement. Others, such as deflection, inclination, and settlement, are essentially displacements. To a certain extent, by measuring the displacement of building components or the whole, the deformation in the spatial dimension of the building can be obtained, and by measuring in a continuous time range, the real-time deformation of the building in the time dimension can be obtained. However, because buildings, especially high-rise buildings, are relatively large in size and less deformed, and it is impossible to temporarily install traditional detection sensors on the building when a fire occurs, it is necessary to use non-contact long-distance rapid measurement. Therefore, the current measurement Accurate monitoring of building deformation is difficult to achieve by equipment, and there is also a lack of a system for early warning of collapse by utilizing the deformation of buildings.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a system that can be used to monitor the deformation of buildings and realize early warning of collapse.

In order to achieve the above object, the present invention provides the following technical solutions: a building deformation monitoring and early warning system, characterized in that the system includes a building structure displacement detection unit and an early warning control unit, and the building structure displacement detection unit includes a first detection unit, The first detection unit is used to detect the displacement and/or velocity of the measured point of the building; the first detection unit includes at least one long-distance detection component, and the detection component is used to obtain the displacement and/or velocity of the at least one measured point. /or speed change process; the early warning control unit is used for early warning control according to the measurement result of the displacement detection unit.

Further, the early warning control unit includes a structural model library, and the structural model library is used to store the structural model information of the building and the calculation method of the early warning parameter threshold and/or the early warning parameter threshold; the structural model information includes the monitored points. coordinate.

Further, the warning parameters include displacement, and/or velocity, and/or acceleration of the measured point.

Further, the first detection unit includes a plurality of long-distance detection components, and the long-distance detection components are arranged on the adjustment base, and the adjustment base can provide the linkage and/or independent adjustment degrees of freedom of the detection directions of the detection components.

Further, the building structure displacement detection unit includes a second detection unit, and the second detection unit includes at least one short-range detection component, and the short-range detection component is used to obtain the relative position of the long-range detection component of the first detection unit. The change and/or change process of the displacement and/or speed of the long-distance detection assembly mounting platform.

Further, the second detection unit includes a plurality of short-range detection components, the short-range detection components are arranged on the adjustment seat, and the adjustment seat can provide the linkage and/or independent adjustment freedom of the detection directions of the short-range detection components. Spend.

Further, the early warning control unit includes an alarm generation algorithm, and the alarm generation algorithm includes an early warning parameter model, and the early warning parameter model is used to store a set of early warning parameters, and the set of early warning parameters is a sufficient condition for generating an alarm signal.

Further, the alarm generation algorithm further includes the steps of: S1, judging the magnitude relationship between the warning parameter threshold and the measured value, and marking the warning parameter corresponding to the measured value not less than the corresponding warning parameter threshold; S2, marking the warning The parameters are combined; S3. Compare the early warning parameter set formed by the combination with the early warning parameter model. If the early warning parameter set formed by the combination contains any early warning parameter model, an alarm is generated, otherwise no alarm is generated.

Further, the alarm generation algorithm includes a first verification program, and the first verification program is used to obtain second detection unit data, and the second detection unit data includes the displacement obtained by the short-range detection component, and/or speed, and/or acceleration.

Further, the system includes a third detection unit, and the third detection unit includes at least one medium-distance detection component, and the medium-distance detection component is used to obtain the long-distance detection component of the first detection unit relative to any medium-distance detection component. The change and/or change process of the displacement and/or velocity of the reference position, where the mid-range reference position is a relatively fixed mid-range reference position in the system installation environment.

Compared with the prior art, the beneficial effects of the present invention are: the building deformation monitoring and early warning system of the present invention can realize remote and accurate monitoring of the building deformation, wherein, the displacement detection unit is improved by setting multiple groups of detection components. The accuracy of the building deformation monitoring data can effectively identify and eliminate some unreal data in the monitoring process. In addition, the early warning control unit can make an assessment of the collapse risk of the building by analyzing the data of the displacement detection unit, and Make accurate and reasonable early warnings, which can effectively help relevant personnel to formulate reasonable and effective countermeasures.

Description of drawings

Fig. 1 shows the structural block diagram of the embodiment of the building deformation monitoring and collapse early warning system of the present invention;

FIG. 2 is a flowchart of an alarm generation algorithm according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "straight", "horizontal", " Orientation or positional relationship indicated by center, top, bottom, top, root, inside, outside, periphery, inside, inside, outside, etc. Based on the orientation or positional relationship shown in the drawings, it is only for the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore It should not be construed as a limitation of the present invention. Among them, "inside" refers to the interior or enclosed area or space. "Peripheral" refers to the area surrounding a particular component or particular area.

In the description of the embodiments of the present invention, the terms "first", "second", "third" and "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying that Number of technical features indicated. Thus, a feature defined as "first", "second", "third", "fourth" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "assembled" should be understood in a broad sense, for example, it may be fixed The connection can also be a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the description of embodiments of the invention, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the embodiments of the present invention, it should be understood that "-" and "-" represent a range between two numerical values, and the range includes the endpoints. For example: "A-B" means a range greater than or equal to A and less than or equal to B. "A to B" means a range greater than or equal to A and less than or equal to B.

In the description of the embodiments of the present invention, the term "and/or" herein is only an association relationship to describe the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B, may indicate that: exist independently A, there are both A and B, and there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

Please refer to Figure 1 and Figure 2:

In the building deformation monitoring and collapse early warning system of this embodiment, the system includes a building structure displacement detection unit and an early warning control unit, the building structure displacement detection unit includes a first detection unit, and the first detection unit is used to detect the building The displacement and/or velocity of the measured point; the first detection unit includes at least one long-distance detection component, and the detection component is used to obtain the displacement and/or velocity change process of the at least one measured point; the early warning control unit It is used for early warning control according to the measurement results of the displacement detection unit.

Specifically, the first detection unit of the building structure displacement detection unit is used as the main measurement unit for detecting the deformation of the building, that is, the long-distance detection component realizes the remote measurement of the deformation parameters of the building. , the parameters used to characterize the deformation of the building can adopt the deformation amount and the deformation rate, more specifically, the displacement and/or velocity change process of at least one measured point on the measured building can be obtained through the detection component; further, all the The early warning control unit performs early warning control by analyzing the data measured by the displacement detection unit. It is worth noting that under normal circumstances, due to the small deformation of the building and the need for long-distance observation, in addition, when the building is in a special environment such as a fire, high temperature fire, smoke, etc. will affect the measurement of building deformation data. To cause interference, as an option, the detection component is a radar detection component, so as to achieve accurate and stable measurement of building deformation in different environments.

As a preferred embodiment, the early warning control unit includes a structural model library, and the structural model library is used to store the structural model information of the building and the calculation method of the early warning parameter threshold and/or the early warning parameter threshold; The model information includes the point coordinates used to reflect the relative position of the monitored point in the building structure model. The building structure is mainly composed of two parts: the load-bearing structure and the enclosure structure. The different coordinates in the building structure model information correspond to Different structural parts of the building, therefore, the warning parameter thresholds and/or warning parameter thresholds corresponding to different coordinates are also different; as a specific preference, the warning parameters include the displacement of the measured point, and/or the speed, and/or acceleration.

As a preferred embodiment, the first detection unit includes a plurality of long-distance detection components, the long-distance detection components are arranged on an adjustment seat, and the adjustment seat can provide linkage and/or independent adjustment of the detection direction of each detection component degrees of freedom. Simultaneous monitoring of multiple buildings can be achieved by setting up multiple long-distance detection components; alternatively, each long-distance detection component is corresponding to different areas of the building, so as to realize the comprehensive coverage detection of the building, and monitor the The deformation information of each key area, thus, on the one hand, the deformation information of each area of the building can be summarized and analyzed to make an accurate prediction of the overall deformation trend of the building. The deformation information of the area can quickly make a reasonable response plan. Further, arranging the long-distance detection assembly on the adjustment seat is conducive to realizing stable fixation of the long-distance detection assembly, and avoids large errors in monitoring data due to the instability of the long-distance detection assembly. The seat can also provide the freedom of linkage and/or independent adjustment of the detection direction of each detection component, so as to improve the flexibility and accuracy of detection of the detection component.

As a preferred embodiment, the building structure displacement detection unit includes a second detection unit, and the second detection unit includes at least one short-range detection component, and the short-range detection component is used to obtain the long-range detection of the first detection unit. The change and/or process of displacement and/or velocity of the assembly relative to the long-range detection assembly mounting platform. Specifically, the monitoring data of the second detection unit can be used to determine whether the long-distance detection component is stably fixed on its installation platform. If the long-distance detection component has a relative displacement relative to its installation platform, it indicates that the long-distance detection component It is in an unstable monitoring environment, which will greatly affect the accuracy and authenticity of the monitored building deformation data, and false measurement data will appear. Therefore, the monitoring data of the long-distance detection component should be corrected, or the monitored data should be directly regarded as invalid. Conversely, if the long-distance detection component has no relative displacement relative to its installation platform, it means that the long-distance detection component itself has not moved, and the monitored data is the real deformation value of the building itself.

As a preferred embodiment, the second detection unit includes a plurality of short-range detection components, the short-range detection components are arranged on an adjustment seat, and the adjustment seat can provide linkage of the detection directions of each short-range detection component and/or Independent adjustment degrees of freedom.

As a preferred embodiment, the early warning control unit includes an alarm generation algorithm, the alarm generation algorithm includes an early warning parameter model, and the early warning parameter model is used to store a set of early warning parameters, and the set of early warning parameters is a sufficient condition for generating an alarm signal .

As a preferred embodiment, referring to FIG. 2 , the alarm generation algorithm further includes the steps of: S1, judging the magnitude relationship between the warning parameter threshold and the measured value, and marking the warning parameter corresponding to the measured value not less than the corresponding warning parameter threshold ; S2, combine the marked early warning parameters; S3, compare the early warning parameter set formed by the combination with the early warning parameter model, if the early warning parameter set formed by the combination contains any early warning parameter model, an alarm is generated, otherwise no alarm is generated.

As a preferred embodiment, the alarm generation algorithm includes a first verification program, and the first verification program is used to acquire second detection unit data, and the second detection unit data includes the displacement acquired by the short-range detection component, and/or velocity, and/or acceleration. Specifically, the first verification program can judge whether the long-distance detection component of the first detection unit is in a stable and effective detection state through the acquired data of the second detection unit, and correct the long-distance detection component according to the data of the second detection unit Adjustment.

As a preferred embodiment, the system includes a third detection unit, the third detection unit includes at least one mid-range detection component, and the medium-range detection component is used to obtain the relative relationship between the long-range detection component of the first detection unit and any A change and/or process of displacement and/or velocity of a mid-range reference position, where the mid-range reference position is a relatively fixed mid-range reference position in a system installation environment. Specifically, by arranging the third detection unit, the authenticity and accuracy of the data monitored by the first detection unit can be improved. If there is no displacement of the long-distance detection component of the first detection unit, it indicates that the detection state of the long-distance detection component is real and effective. On the contrary, if the third detection unit detects that the medium-distance reference position is displaced relative to the long-distance detection component of the first detection unit, it indicates that A certain error occurs in the detection value of the long-distance detection component, or it indicates that the value detected by the long-distance detection component is not true, and thus, the long-distance detection component can be corrected.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The building deformation monitoring and collapse early warning system is characterized by comprising a building structure displacement detection unit and an early warning control unit, wherein the building structure displacement detection unit comprises a first detection unit which is used for detecting the displacement and/or the speed of a measured point of a building; the first detection unit comprises at least one long-distance detection assembly, and the detection assembly is used for acquiring the displacement and/or speed change process of at least one measured point; the early warning control unit is used for carrying out early warning control according to the measurement result of the displacement detection unit;

the building structure displacement detection unit comprises a second detection unit, the second detection unit comprises at least one short-distance detection component, and the short-distance detection component is used for acquiring the displacement and/or speed change and/or change process of the long-distance detection component of the first detection unit relative to the long-distance detection component mounting platform;

the system comprises a third detection unit, wherein the third detection unit comprises at least one intermediate distance detection component, the intermediate distance detection component is used for acquiring the displacement and/or speed change and/or change process of the long distance detection component of the first detection unit relative to any intermediate distance reference position, and the intermediate distance reference position is a relatively fixed intermediate distance reference position in a system installation environment;

the second detection unit comprises a plurality of short-distance detection assemblies, the short-distance detection assemblies are arranged on the adjusting seat, and the adjusting seat can provide linkage and/or independent adjustment freedom degrees of detection directions of the short-distance detection assemblies.

2. The building deformation monitoring and collapse early warning system according to claim 1, wherein the early warning control unit comprises a structure model library, and the structure model library is used for storing structure model information of a building and a calculation method of an early warning parameter threshold value and/or an early warning parameter threshold value; the structural model information includes the coordinates of the point location being monitored.

3. The building deformation monitoring and collapse warning system according to claim 1 or 2, wherein the warning parameters comprise displacement, and/or velocity, and/or acceleration of the measured point.

4. The building deformation monitoring and collapse early warning system according to claim 3, wherein the first detection unit comprises a plurality of long-distance detection assemblies, the long-distance detection assemblies are arranged on an adjusting seat, and the adjusting seat can provide linkage and/or independent adjustment freedom of detection directions of the detection assemblies.

5. The building deformation monitoring and collapse warning system according to claim 1, wherein the warning control unit comprises a warning generation algorithm, the warning generation algorithm comprises a warning parameter model, the warning parameter model is used for storing a set of warning parameters, and the set of warning parameters is a sufficient condition for generating a warning signal.

6. The building deformation monitoring and collapse warning system according to claim 5, wherein the alarm generation algorithm further comprises the steps of: s1, judging the size relationship between the early warning parameter threshold value and the measured value, and marking the early warning parameter corresponding to the measured value not less than the corresponding early warning parameter threshold value; s2, combining the marked early warning parameters; and S3, comparing the early warning parameter set formed by combination with the early warning parameter model, if the early warning parameter set formed by combination contains any early warning parameter model, generating an alarm, otherwise, not generating the alarm.

7. The building deformation monitoring and collapse warning system according to claim 6, wherein the alarm generation algorithm comprises a first verification program, the first verification program is used for acquiring second detection unit data, and the second detection unit data comprises displacement, speed and acceleration acquired by the short-distance detection assembly.

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