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Building external wall nondestructive testing method, device and system

A detection device and non-destructive testing technology, which is applied in measuring devices, processing detection response signals, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve the problem of inability to effectively judge the bonding status of the external thermal insulation system and the inability to judge the bonding force status and other problems, to achieve the effect of reliable detection method and high accuracy

Active Publication Date: 2021-03-26
建研建材有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Visible light and infrared thermal imaging cannot effectively judge the bonding status of the external thermal insulation system, while the core drilling method can only judge the bonding force of the drilled core part, but cannot judge the overall bonding force of the system

Method used

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  • Building external wall nondestructive testing method, device and system
  • Building external wall nondestructive testing method, device and system
  • Building external wall nondestructive testing method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] refer to figure 1 , this embodiment provides a method for non-destructive testing of building exterior walls. The drone is equipped with a knock detection device and flies along the preset track to fit the wall to be inspected. During the flight, the knock detection device collects sound signals, and Tap the wall at the end of the preset tapping interval;

[0051] The methods include:

[0052] S1. Receive the sound signal collected by the knock detection device, and process the sound signal;

[0053] S2, judging the mortar bonding situation of each knocking point according to the processing results;

[0054] S3. Calculate the location coordinates of each tapping point according to the preset tapping interval and the moving speed of the drone, and correspond the location coordinates of each tapping point to the mortar bonding condition.

[0055] Specifically, in some embodiments, the preset track such as figure 2 As shown, it is an "S" shape, and there are more tapp...

Embodiment 2

[0088] refer to Figure 4 , this embodiment provides a non-destructive testing device for building exterior walls. The drone is equipped with a knock detection device and flies along the preset trajectory to fit the wall to be inspected. During the flight, the knock detection device collects sound signals, and Tap the wall at the end of the preset tapping interval;

[0089] The devices include:

[0090] The sound processing module 301 receives the sound signal collected by the knock detection device, and processes the sound signal;

[0091] Judging module 302, for judging the mortar bonding situation of each knocking point according to the processing result;

[0092] The position correspondence module 303 is configured to calculate the position coordinates of each knock point according to the preset knock interval time and the moving speed of the drone, and correspond the position coordinates of each knock point with the mortar bonding condition.

[0093] Specifically, the ...

Embodiment 3

[0100] refer to Figure 5 with Image 6 , this embodiment provides a non-destructive testing system for building exterior walls, including a knock detection device 1 and a drone 2, and the drone 2 is used to carry the knock detection device 1 and fly along the wall to be inspected according to a preset trajectory. During the flight, the tapping detection device 1 collects sound signals, and taps the wall at the end of each preset tapping interval;

[0101] The system also includes a data processor 3 and a storage device 4, the storage device stores a plurality of instructions, and the data processor 3 is used to read the instructions and execute:

[0102] receiving the sound signal collected by the knock detection device, and processing the sound signal;

[0103] According to the processing results, the mortar bonding situation of each knocking point is judged;

[0104] The location coordinates of each tapping point are calculated according to the preset tapping interval an...

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Abstract

The invention discloses a building external wall nondestructive testing method, a device and a system, and the method comprises the steps: receiving a sound signal collected by a knocking detection device, and processing the sound signal; judging the mortar bonding condition of each knocking point according to the processing result; calculating the position coordinate of each knocking point according to the preset knocking interval duration and the moving speed of the unmanned aerial vehicle, and enabling the position coordinate of each knocking point to correspond to the mortar bonding condition; according to the scheme, nondestructive testing of the bonding mortar of a heat preservation layer in the building external wall can be achieved, then the overall adhesive force condition is evaluated, and an evaluation basis is provided for external wall maintenance.

Description

technical field [0001] The invention relates to the technical field of building inspection, in particular to a method, device and system for non-destructive inspection of building exterior walls. Background technique [0002] In recent years, with the rapid development of my country's social economy and the continuous acceleration of urbanization, the number of various types of buildings has increased significantly. Since the 1990s, with the development of building energy-saving technology, building exterior wall insulation has become the main measure for building energy conservation, mainly based on various types of thermal insulation board sticky anchor thin plaster system and thermal insulation mortar thin plaster system. Due to the comprehensive effect of various factors such as material quality factors, construction factors, and aging during service in different construction periods, some buildings have problems such as cracks, hollowing, and insufficient adhesion in th...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/44
CPCG01N29/045G01N29/44
Inventor 王万金闫海鹏冷发光于慧黄靖秦凯王思娅曹力强马欣伯舒畅
Owner 建研建材有限公司
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