A construction engineering quality monitoring method, device and storage medium

Abstract

The application provides a construction engineering quality monitoring method and device and a storage medium, and relates to the technical field of construction monitoring. The method comprises the following steps: S1, determining a to-be-detected area where a building wall is located; S2, dividing the to-be-detected area into a plurality of sub-areas; S3, knocking the center point of each sub-area and collecting echo sound signals; S4, determining whether the center of each sub-area is hollow and merging the sub-areas into a preliminary hollow area; S5, determining the sub-area at the center as a first confirmed hollow area and re-determining the sub-area at the edge as a to-be-detected area; S6, for the to-be-detected area re-determined in S5, executing the steps of S2 to S4 again, and determining the sub-area at the center of the preliminary hollow area obtained again as a second confirmed hollow area; and S7, merging the first confirmed hollow area and the second confirmed hollow area into a final confirmed hollow area. The application can accurately determine the position of the hollow area in the building wall through two cycles of division and detection.

Description

Technical Field

[0001] This application relates to the field of construction monitoring technology, and in particular to a method, equipment and storage medium for monitoring the quality of construction projects. Background Technology

[0002] During construction, hollow areas in building walls are caused by air trapped in the original masonry and plaster layers. During inspection, a hollow area is detected by gently tapping the plaster and leveling layers with a hammer or hard object; a hollow sound indicates poor adhesion or bonding between the finishing layers (plaster or tiled surfaces) and the structural layers (concrete or brick walls).

[0003] However, existing construction monitoring methods for detecting hollow walls have several shortcomings: 1. Monitoring of wall hollowness is limited to determining whether hollowness exists in the wall, but it cannot accurately measure the specific hollow area; 2. When a hammer or hard object is lightly tapped on the wall, the hammer or hard object may strike the wall multiple times. The extra taps will generate noise, which will greatly interfere with the judgment process. Summary of the Invention

[0004] This application provides a method, equipment, and storage medium for monitoring the quality of construction projects, in order to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of this application, a method for monitoring the quality of construction projects is provided, comprising the following steps: S1, Determine the area to be inspected where the building walls are located; S2, the area to be detected is divided into several sub-regions, and the center point of each sub-region is determined; S3, strike the center point of each sub-region and collect the echo sound wave signal; S4, determine whether the center of each sub-region is hollow based on the sound wave signal, and merge adjacent sub-regions with hollow centers into a preliminary hollow region; S5, the sub-region at the center of the initial hollow area is determined as the first confirmed hollow area, and the sub-region at the edge of the initial hollow area is redefined as the area to be detected; S6, for the area to be detected that has been redefined in S5, repeat steps S2 to S4, and determine the sub-region at the center of the preliminary hollow area obtained again as the second confirmed hollow area. S7, merge the first confirmed hollow area and the second confirmed hollow area into the final confirmed hollow area.

[0006] In some embodiments of the first aspect of this application, in step S3, striking the center point of each sub-region employs a wall-tapping device, the wall-tapping device comprising: First slide; A sliding shaft slides in conjunction with the first slide rail. The first end of the sliding shaft is provided with a magnetic material and is located inside the first slide rail. The main body of the sliding shaft extends axially until the second end extends out of the first slide rail. The second end of the sliding shaft is provided with a hammer. The middle part of the sliding shaft is provided with a protrusion. A slider is disposed within a first slide rail, and an electromagnet for attracting the magnetic material is disposed within the slider. A first spring is disposed in a first slide rail. The first end of the first spring is fixedly connected to the slider, and the second end of the first spring extends toward the protrusion. An air chamber, located within the first slide and in contact with the slider, is used to provide the slider with a supporting force toward the hammer; In the initial state, the air bag is inflated, providing support for the slider. The electromagnet attracts the magnetic material until they are in contact, and the first spring is at a first compression level. When a strike is triggered, the electromagnet is deactivated, and the first spring drives the sliding shaft to slide towards the second end until the hammer strikes the wall. After the hammer rebounds from the wall, the air bag is depressurized, and the sliding shaft applies a force to the slider along the first spring, causing the slider to slide along the first track, completing the depressurization after the hammer rebounds.

[0007] In some embodiments of the first aspect of this application, the air bag is provided with an inflation port and a pressure relief valve extending beyond the first slide. The inflation port is externally connected to an inflation mechanism. When the inflation mechanism inflates the air bag, the air bag is in an inflated state. When the pressure relief valve is opened, the air bag is in a depressurized state.

[0008] In some embodiments of the first aspect of this application, the wall-tapping device includes a second spring; The second spring is disposed in the first slide rail, and the first spring and the second spring are respectively located on both sides of the protrusion; the first end of the second spring is fixedly connected to the first slide rail, and the second end of the second spring extends toward the protrusion; When the hammer strikes the wall, the second spring is under a second compression, which is less than the first compression.

[0009] In some embodiments of the first aspect of this application, the wall striking device includes a soundproof cover disposed outside the first slide rail, the soundproof cover having an opening facing the hammer side; when a strike is triggered, the opening of the soundproof cover is in close contact with the area to be detected on the wall.

[0010] In some embodiments of the first aspect of this application, a photosensitive switch is provided on the side of the first slide away from the hammer, facing the apex of the hammer. For each sub-region, before the wall-tapping device strikes, a first beam is projected onto the area to be tested. The first beam includes the center point of the sub-region. When the wall-tapping device moves to a position where the photosensitive switch is directly facing the first beam, the photosensitive switch is triggered, controlling the electromagnet to close and stimulating the hammer to strike the wall.

[0011] In some embodiments of the first aspect of this application, in step S4, the method for determining whether the center of each sub-region is hollow based on the acoustic signal is as follows: The amplitude of the sound wave signal is compared with a preset amplitude threshold. If the amplitude of the sound wave signal is greater than the preset amplitude threshold, the center of the sub-region is hollow; otherwise, the center of the sub-region is dense.

[0012] In some embodiments of the first aspect of this application, when steps S2 to S4 are executed again in S6, the amplitude threshold is corrected, and the correction method is as follows: Prefabricated hollow test areas of different sizes were constructed, and acoustic signals were collected from the edges of the hollow test areas of different sizes. Calculate the area of ​​the initial hollow area obtained from the first merging, and find the hollow test area from the prefabricated hollow area that is closest to the area of ​​the initial hollow area; The amplitude of the acoustic signal collected at the edge of the hollow test area is used as the corrected amplitude threshold.

[0013] According to a second aspect of this application, a wall tapping device for monitoring the quality of construction projects is provided, comprising: First slide; A sliding shaft slides in conjunction with the first slide rail. The first end of the sliding shaft is provided with a magnetic material and is located inside the first slide rail. The main body of the sliding shaft extends axially until the second end extends out of the first slide rail. The second end of the sliding shaft is provided with a hammer. The middle part of the sliding shaft is provided with a protrusion. A slider is disposed within a first slide rail, and an electromagnet for attracting the magnetic material is disposed within the slider. A first spring is disposed in a first slide rail. The first end of the first spring is fixedly connected to the slider, and the second end of the first spring extends toward the protrusion. An air chamber, located within the first slide and in contact with the slider, is used to provide the slider with a supporting force toward the hammer; In the initial state, the air bag is inflated, providing support for the slider. The electromagnet attracts the magnetic material until they are in contact, and the first spring is at a first compression level. When a strike is triggered, the electromagnet is deactivated, and the first spring drives the sliding shaft to slide towards the second end until the hammer strikes the wall. After the hammer rebounds from the wall, the air bag is depressurized, and the sliding shaft applies a force to the slider along the first spring, causing the slider to slide along the first track, completing the depressurization after the hammer rebounds.

[0014] In some embodiments of the second aspect of this application, the air bag is provided with an inflation port and a pressure relief valve extending beyond the first slide rail. The inflation port is externally connected to an inflation mechanism. When the inflation mechanism inflates the air bag, the air bag is in an inflated state; when the pressure relief valve is opened, the air bag is in a depressurized state.

[0015] In some embodiments of the second aspect of this application, the wall-tapping device includes a second spring; The second spring is disposed in the first slide rail, and the first spring and the second spring are respectively located on both sides of the protrusion; the first end of the second spring is fixedly connected to the first slide rail, and the second end of the second spring extends toward the protrusion; When the hammer strikes the wall, the second spring is under a second compression, which is less than the first compression.

[0016] In some embodiments of the second aspect of this application, the wall striking device includes a soundproof cover disposed outside the first slide rail, the soundproof cover having an opening facing the hammer side; when a strike is triggered, the opening of the soundproof cover is in close contact with the area to be tested on the wall.

[0017] In some embodiments of the second aspect of this application, a photosensitive switch is provided on the side of the first slide that faces away from the hammer, directly opposite the apex of the hammer. Before the wall-tapping device strikes, a first light beam is projected onto the area to be tested. The first light beam includes the striking point. When the wall-tapping device moves to a position where the photosensitive switch is directly facing the first light beam, the photosensitive switch is triggered, controlling the electromagnet to close and stimulating the hammer to strike the wall.

[0018] According to a third aspect of this application, an electronic device is provided, comprising: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method described in this application.

[0019] According to a fourth aspect of this application, a non-transitory computer-readable storage medium is provided storing computer instructions for causing the computer to perform the methods described in this application.

[0020] Compared with the prior art, this application has the following advantages: 1. This application divides the area to be inspected in a building wall into several sub-regions, and taps each sub-region to collect sound wave signals and determine whether the center of the corresponding sub-region is hollow, thus determining the initial hollow area. Then, the sub-regions at the edge of the initial hollow area are used as new areas to be inspected, and the sub-regions are divided again, tapped, and sound wave signals are collected to determine whether the center of the corresponding sub-region is hollow. Finally, the newly determined confirmed hollow area and the first confirmed hollow area determined by the sub-region at the center of the initial hollow area are merged to form the final hollow area. Through the above two-cycle inspection, this application can further accurately determine the location of hollow areas in building walls.

[0021] 2. The wall-tapping device used in this application employs an electromagnet installed inside the slider to attract the magnetic material at the first end of the sliding shaft, thereby compressing the first spring to generate corresponding potential energy. When the electromagnet is turned off, the sliding shaft is released, and the first spring drives the sliding shaft and the hammer at its end to strike the wall. After the hammer rebounds from the wall, it depressurizes the air bag used to support the slider, thus preventing the sliding shaft from rebounding back to the wall after contacting the first spring. This achieves the effect of striking the wall only once in one operation, avoiding the generation of echo noise.

[0022] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0023] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which: In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0024] Figure 1 A flowchart illustrating the overall method of this application is shown.

[0025] Figure 2 A schematic diagram of the building wall division in this application is shown.

[0026] Figure 3 A schematic diagram of the wall-tapping device of this application is shown.

[0027] Figure 4 A cross-sectional view of the wall-tapping device of this application is shown.

[0028] Figure 5 An exploded view of the internal structure of the wall-tapping device of this application is shown.

[0029] Figure 6 A schematic diagram of the wall-tapping device of this application in its initial state is shown.

[0030] Figure 7 A schematic diagram of the wall-tapping device of this application when a tapping is triggered is shown.

[0031] Figure 8 A schematic diagram of the wall-tapping device of this application in a depressurized state is shown.

[0032] Figure 9 The schematic diagram of the control circuit of the wall-tapping device of this application is shown.

[0033] Figure 10 A preliminary schematic diagram of the hollow area confirmation in this application is shown.

[0034] Figure 11 A schematic diagram of different sampling points in the hollow area of ​​the wall in this application is shown.

[0035] Figure 12 A schematic diagram of the second confirmed void area obtained again in this application is shown.

[0036] Figure 13 A schematic diagram of the composition structure of an electronic device according to this application is shown.

[0037] Explanation of reference numerals in the attached figures: 100. Wall striking device; 110. First Slide; 120. Sliding shaft; 121. Magnetic material; 122. Hammer; 123. Protrusion; 130. Sliding block; 131. Electromagnet; 140. The first spring; 150. Air tank; 151. Inflation port; 152. Pressure relief valve; 160. The second spring; 170. Photosensitive switch; 180. Soundproof enclosure; 190. Acoustic wave collector. Detailed Implementation

[0038] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] Example 1: A method for monitoring the quality of construction projects This embodiment provides a construction project quality monitoring method for accurately determining the extent of hollow areas in building walls.

[0040] Please refer to Figure 1 The construction project quality monitoring method includes the following steps: S1, determine the area to be inspected where the building wall is located. Usually, the area to be inspected is the entire surface of the building wall.

[0041] S2, the area to be detected is divided into several sub-regions, and the center point of each sub-region is determined.

[0042] like Figure 2 As shown, in this embodiment, the area to be detected, i.e., the entire surface of the building wall, is rectangular, and the area to be detected is divided into 8... 8 = 64 sub-regions, each also rectangular, with the center point of the rectangle defined as the center point of the sub-region. Figure 2 The location of the middle circle.

[0043] S3, tap the center point of each sub-region and collect the echo sound wave signal.

[0044] like Figure 3 and Figure 4 As shown, the wall-tapping device 100 is used to tap the center point of each sub-region. It is worth mentioning that, in order to avoid generating noise by tapping the wall multiple times, the wall-tapping device taps the wall only once in each sub-region.

[0045] Specifically, such as Figure 4 and Figure 5 As shown, the wall-tapping device 100 includes the following parts.

[0046] The first slide rail 110 is a columnar section extending axially.

[0047] A sliding shaft 120 is slidably engaged with the first slide rail 110. A magnetic material 121 is provided at the first end of the sliding shaft 120 and is located inside the first slide rail 110. The main body of the sliding shaft 120 extends axially until the second end extends out of the first slide rail 110. A hammer 122 is provided at the second end of the sliding shaft 120. A protrusion 123 is provided in the middle of the sliding shaft 120.

[0048] The magnetic material 121 may be Fe, Co, Ni or an alloy thereof.

[0049] It is worth mentioning that the first slide rail 110 has an opening for the sliding shaft 120 to extend from one end near the hammer 122. The first slide rail 110 and the sliding shaft 120 slide in this opening. The protrusion 123 of the sliding shaft 120 also slides in the first slide rail 110. With these two sliding connections, the sliding shaft 120 can slide smoothly along the first slide rail 110.

[0050] A slider 130 is disposed within a first slide rail 110. An electromagnet 131 for attracting the magnetic material 121 is disposed within the slider 130, and the slider 130 slides in conjunction with the first slide rail 110.

[0051] A first spring 140 is disposed in a first slide rail 110. The first end of the first spring 140 is fixedly connected to the slider 130. The second end of the first spring 140 extends toward the protrusion 120. The side of the protrusion 120 facing the first spring 140 includes a first abutment surface.

[0052] An air bag 150 is disposed within the first slide rail 110 and is in contact with the slider 130, and is used to provide the slider 130 with a supporting force in the direction of the hammer 122.

[0053] In order to inflate and deflate the air tank 150, the air tank 150 is provided with an inflation port 151 extending beyond the first slide rail 110 and a pressure relief valve 152. The inflation port 151 is externally connected to an inflation mechanism. When the inflation mechanism inflates the air tank 150, the air tank 150 is in an inflated state; when the pressure relief valve 152 is opened, the air tank 150 is in a depressurized state.

[0054] like Figure 6 As shown, in the initial state, the air bag 150 is in an inflated state, providing support for the slider 130. The electromagnet 131 attracts the magnetic material 121 until they are in contact. At this time, the distance between the first contact surface of the protrusion 120 and the slider 130 is less than the natural length of the first spring 140, and the first spring 140 is under the first compression.

[0055] like Figure 7As shown, when the strike is triggered, the electromagnet 131 is turned off, and the first spring 131 converts potential energy into kinetic energy, driving the sliding shaft 120 to slide toward the second end until the hammer 122 strikes the wall.

[0056] like Figure 8 As shown, after the hammer 122 rebounds from the wall, the pressure relief valve 152 opens, and the air tank 150 is in a depressurized state, losing its supporting function for the slider 130. The sliding shaft 120 exerts a force on the slider 130 along the first spring 140, causing the slider 130 to slide along the first track, completing the pressure relief after the hammer 122 rebounds. The kinetic energy of the sliding shaft 120 is released by the depressurized air tank 150, preventing it from rebounding back to the wall by the first spring 140. This achieves the effect of striking the wall only once in a single operation, avoiding the generation of echo noise.

[0057] In the above scheme, in order to enable the hammer 122 to rebound quickly from the wall, the wall striking device 100 includes a second spring 160. The second spring 160 is disposed within the first slide rail 110, and the first spring 1140 and the second spring 160 are respectively located on both sides of the protrusion.

[0058] Specifically, the first end of the second spring 160 is fixedly connected to the opening of the first slide rail 110 for the extension of the sliding shaft 120, and the second end of the second spring extends toward the protrusion 123. The side of the protrusion 120 facing the second spring 160 includes a second abutment surface.

[0059] like Figure 7 As shown, when the hammer 122 strikes the wall, the distance between the second contact surface of the protrusion 120 and the first end of the second spring 160 is less than the natural length of the second spring 160. The second spring 160 is under a second compression. In order to ensure that the hammer 122 can strike the wall, the second compression is less than the first compression.

[0060] To ensure effective sound wave acquisition and filter out external noise, the wall-tapping device 100 includes a soundproof cover 180. The soundproof cover 180 is located outside the first slide rail 100, and its opening faces the hammer 122. It is worth mentioning that, as... Figure 7 As shown, when the impact is triggered, the opening of the soundproof cover 180 is pressed against the area to be tested on the wall. At this time, the hammer 122 strikes the wall, and the apex of the hammer 122 is exactly flush with the opening of the soundproof cover 180.

[0061] The acoustic wave signal used to collect the echo is obtained by an acoustic wave collector 190, which is installed inside a soundproof enclosure 180, specifically located away from the opening of the soundproof enclosure 180. The acoustic wave collector 190 can be a microphone or an acoustic sensor.

[0062] To ensure that hammer 122 strikes accurately at the center point of the sub-region. For example... Figure 7 and Figure 9 As shown, a photosensitive switch 170 is provided on the side of the first slide rail 100 facing away from the hammer 122, which is directly opposite the apex of the hammer 122.

[0063] For each sub-region, before the wall-tapping device 100 strikes, a first beam is projected onto the area to be tested. The first beam includes the center point of the sub-region. When the wall-tapping device 100 moves to the point where the photosensitive switch 170 is directly facing the first beam, the photosensitive switch 170 is triggered, controlling the electromagnet 131 to turn off and stimulating the hammer 122 to strike the wall.

[0064] It is worth mentioning that the projection of the first beam is achieved using a projector.

[0065] S4, determine whether the center of each sub-region is hollow based on the sound wave signal, and as follows: Figure 10 As shown by the red center point (o1 to o9), the adjacent sub-regions of the central hollow area are merged into the initial hollow area.

[0066] like Figure 11 As shown, the area inside the dashed circle represents the hollow region, and the area outside the circle represents the dense region. Different sampling points are sequentially set outwards from the center of the hollow region (i.e., the center O). At each sampling point, the same tapping is performed (using the aforementioned wall tapping device 100), and the echo sound wave signal is collected. The amplitude of the sound wave signal shows a significant difference. From the center O of the hollow region towards the edge A of the hollow region, the amplitude of the echo sound wave signal gradually decreases, reaching a sudden change point at edge A. From edge A towards the dense region B, the amplitude of the echo sound wave signal rapidly decreases.

[0067] Therefore, the amplitude of the echo sound wave signal can be used as a feature to determine whether there is a hollow area at the location where the wall is struck. Since the location of edge A is difficult to determine and its amplitude exhibits abrupt changes, it is not suitable as a reference amplitude threshold. Therefore, the amplitude of the echo sound wave signal from sampling point C, located near edge A within the hollow area, is used as a reference. The distance between sampling point C and edge A is 2-4 cm, preferably 3 cm.

[0068] In this embodiment, the method for determining whether the center of each sub-region is hollow based on the sound wave signal is as follows: The amplitude of the sound wave signal is compared with a preset amplitude threshold. If the amplitude of the sound wave signal is greater than the preset amplitude threshold, the center of the sub-region is hollow; otherwise, the center of the sub-region is dense.

[0069] S5, the sub-region at the center of the initial hollow area is determined as the first confirmed hollow area, and the sub-region at the edge of the initial hollow area is redefined as the area to be detected.

[0070] like Figure 10 As shown, the circles indicated by the dashed lines represent hollow areas.

[0071] The sub-region (e.g., o5) at the center of the initial hollow area is entirely within the hollow area, so no further detailed judgment is needed and the whole can be identified as a hollow area.

[0072] Conversely, the sub-regions at the edge of the initial hollow area (taking o1 to o4 and o6 to o9 as examples) are generally difficult to determine as being in the hollow area as a whole. For example, o1, o3, o7, and o9 are clearly only partially in the hollow area.

[0073] Therefore, it is necessary to re-identify the area to be detected and conduct further, more detailed assessments.

[0074] In addition, we also observed that, outside of sub-regions o1 to o9, there are some sub-regions that are actually also within the hollow area. In order to reconfirm these sub-regions and improve the accuracy of hollow area confirmation, this embodiment limits the method for confirming the sub-regions at the edge of the initial hollow area as follows: First, determine the outer contour of the initial hollow area, in order to Figure 10 For example, the outer contour is a rectangle that simultaneously encloses sub-regions o1 to o9.

[0075] The sub-regions at the edge of the initial hollow area include not only the sub-regions (i.e., o1 to o9) inside the initial hollow area that are adjacent to the outer contour, but also the sub-regions (i.e., the sub-regions where o1 to o9 spread outwards in a circle) outside the initial hollow area that are adjacent to the outer contour.

[0076] S6. For the area to be detected that has been redefined in S5, steps S2 to S4 are executed again, and the sub-region at the center of the preliminary hollow area obtained again is determined as the second confirmed hollow area.

[0077] like Figure 12 As shown, taking sub-region o3 as an example, sub-region o3 is used as the newly determined area to be detected. Steps S2 to S4 are executed in sequence to obtain the preliminary hollow area shown in the green frame (circle), which is used as the second confirmed hollow area.

[0078] It is worth mentioning that during the experiment, it was also found that the amplitude of the sampling point C near the edge A was not the same for hollow areas of different sizes. Generally speaking, the larger the hollow area, the larger the amplitude of the sampling point C.

[0079] Therefore, in step S6, when steps S2 to S4 are executed again, the amplitude threshold is corrected, and the correction method is as follows: Prefabricated hollow test areas of different sizes were constructed, and acoustic signals were collected from the edges of the hollow test areas of different sizes. Calculate the area of ​​the initial hollow area obtained from the first merging, and find the hollow test area from the prefabricated hollow area that is closest to the area of ​​the initial hollow area; The amplitude of the acoustic signal collected at the edge of the hollow test area is used as the corrected amplitude threshold.

[0080] Since the initial hollow area obtained from the first merging is approximately equal in area to the actual hollow area, using this similarly sized hollow test area as a reference can yield a more accurate amplitude threshold.

[0081] It is worth mentioning that the amplitude threshold is the amplitude of the sound wave signal collected at the edge of a typical 20cm×20cm hollow test area as the amplitude threshold before correction (i.e., used in the first S4 to determine whether the center of each sub-region is hollow based on the sound wave signal).

[0082] S7, merge the first confirmed hollow area and the second confirmed hollow area into the final confirmed hollow area.

[0083] Specifically, with Figure 11 For example, the green frame represents the second confirmed hollow area obtained from sub-region o3. By traversing all sub-regions at the edges of the initial hollow areas, all the obtained second confirmed hollow areas and... Figure 10 Sub-region o5 in the first confirmed hollow area is merged to obtain the final confirmed hollow area, which accurately determines the location of the hollow area in the building wall.

[0084] In other embodiments, to confirm the visibility of the hollow area, step S7 further includes: S8, project a second beam onto the area to be detected where the building wall is located, the first beam including a pattern of the finally confirmed hollow area.

[0085] Specifically, similar to the projection of the first beam in S3, the projection of the second beam is also achieved using a projector.

[0086] Example 2: A wall tapping device for monitoring construction quality This second embodiment provides a wall tapping device for monitoring the quality of construction projects. Specifically, it is used to tap the wall to generate an echo during the detection of hollow walls. To avoid generating noise from multiple taps, the wall tapping device taps the wall only once in each sub-region.

[0087] Specifically, such as Figure 4 and Figure 5 As shown, the wall-tapping device 100 includes the following parts.

[0088] The first slide rail 110 is a columnar section extending axially.

[0089] A sliding shaft 120 is slidably engaged with the first slide rail 110. A magnetic material 121 is provided at the first end of the sliding shaft 120 and is located inside the first slide rail 110. The main body of the sliding shaft 120 extends axially until the second end extends out of the first slide rail 110. A hammer 122 is provided at the second end of the sliding shaft 120. A protrusion 123 is provided in the middle of the sliding shaft 120.

[0090] The magnetic material 121 may be Fe, Co, Ni or an alloy thereof.

[0091] It is worth mentioning that the first slide rail 110 has an opening for the sliding shaft 120 to extend from one end near the hammer 122. The first slide rail 110 and the sliding shaft 120 slide in this opening. The protrusion 123 of the sliding shaft 120 also slides in the first slide rail 110. With these two sliding connections, the sliding shaft 120 can slide smoothly along the first slide rail 110.

[0092] A slider 130 is disposed within a first slide rail 110. An electromagnet 131 for attracting the magnetic material 121 is disposed within the slider 130, and the slider 130 slides in conjunction with the first slide rail 110.

[0093] A first spring 140 is disposed in a first slide rail 110. The first end of the first spring 140 is fixedly connected to the slider 130. The second end of the first spring 140 extends toward the protrusion 120. The side of the protrusion 120 facing the first spring 140 includes a first abutment surface.

[0094] An air bag 150 is disposed within the first slide rail 110 and is in contact with the slider 130, and is used to provide the slider 130 with a supporting force in the direction of the hammer 122.

[0095] In order to inflate and deflate the air tank 150, the air tank 150 is provided with an inflation port 151 extending beyond the first slide rail 110 and a pressure relief valve 152. The inflation port 151 is externally connected to an inflation mechanism. When the inflation mechanism inflates the air tank 150, the air tank 150 is in an inflated state; when the pressure relief valve 152 is opened, the air tank 150 is in a depressurized state.

[0096] like Figure 6As shown, in the initial state, the air bag 150 is in an inflated state, providing support for the slider 130. The electromagnet 131 attracts the magnetic material 121 until they are in contact. At this time, the distance between the first contact surface of the protrusion 120 and the slider 130 is less than the natural length of the first spring 140, and the first spring 140 is under the first compression.

[0097] like Figure 7 As shown, when the strike is triggered, the electromagnet 131 is turned off, and the first spring 131 converts potential energy into kinetic energy, driving the sliding shaft 120 to slide toward the second end until the hammer 122 strikes the wall.

[0098] like Figure 8 As shown, after the hammer 122 rebounds from the wall, the pressure relief valve 152 opens, and the air tank 150 is in a depressurized state, losing its supporting function for the slider 130. The sliding shaft 120 exerts a force on the slider 130 along the first spring 140, causing the slider 130 to slide along the first track, completing the pressure relief after the hammer 122 rebounds. The kinetic energy of the sliding shaft 120 is released by the depressurized air tank 150, preventing it from rebounding back to the wall by the first spring 140. This achieves the effect of striking the wall only once in a single operation, avoiding the generation of echo noise.

[0099] In the above scheme, in order to enable the hammer 122 to rebound quickly from the wall, the wall striking device 100 includes a second spring 160. The second spring 160 is disposed within the first slide rail 110, and the first spring 1140 and the second spring 160 are respectively located on both sides of the protrusion.

[0100] Specifically, the first end of the second spring 160 is fixedly connected to the opening of the first slide rail 110 for the extension of the sliding shaft 120, and the second end of the second spring extends toward the protrusion 123. The side of the protrusion 120 facing the second spring 160 includes a second abutment surface.

[0101] like Figure 7 As shown, when the hammer 122 strikes the wall, the distance between the second contact surface of the protrusion 120 and the first end of the second spring 160 is less than the natural length of the second spring 160. The second spring 160 is under a second compression. In order to ensure that the hammer 122 can strike the wall, the second compression is less than the first compression.

[0102] To ensure effective sound wave acquisition and filter out external noise, the wall-tapping device 100 includes a soundproof cover 180. The soundproof cover 180 is located outside the first slide rail 100, and its opening faces the hammer 122. It is worth mentioning that, as... Figure 7As shown, when the impact is triggered, the opening of the soundproof cover 180 is pressed against the area to be tested on the wall. At this time, the hammer 122 strikes the wall, and the apex of the hammer 122 is exactly flush with the opening of the soundproof cover 180.

[0103] The wall-tapping device 100, used for collecting echo sound signals, includes a sound wave collector 190, which is installed inside a soundproof enclosure 180, specifically located away from the opening of the soundproof enclosure 180. The sound wave collector 190 can be a microphone or a sound sensor.

[0104] To ensure that hammer 122 strikes accurately at the correct location. For example... Figure 7 and Figure 9 As shown, a photosensitive switch 170 is provided on the side of the first slide rail 100 facing away from the hammer 122, which is directly opposite the apex of the hammer 122.

[0105] Before the wall-tapping device 100 strikes, a first beam of light is projected onto the area to be tested. The first beam of light includes a striking point. When the wall-tapping device 100 moves to a position where the photosensitive switch 170 is directly facing the first beam of light, the photosensitive switch 170 is triggered, controlling the electromagnet 131 to turn off and stimulating the hammer 122 to strike the wall.

[0106] It is worth mentioning that the projection of the first beam is achieved using a projector.

[0107] Example 3: An electronic device and a readable storage medium This embodiment also provides an electronic device and a readable storage medium.

[0108] Figure 13 A schematic block diagram of an example electronic device that can be used to implement embodiments of this application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the application described and / or claimed herein.

[0109] like Figure 13As shown, the device includes a computing unit that can perform various appropriate actions and processes based on a computer program stored in read-only memory (ROM) or a computer program loaded from a storage unit into random access memory (RAM). The RAM can also store various programs and data required for device operation. The computing unit, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0110] Multiple components in the device are connected to the I / O interface, including: input units such as keyboards and mice; output units such as various types of displays and speakers; storage units such as disks and optical discs; and communication units such as network interface cards (NICs), modems, and wireless transceivers. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0111] The computing unit can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of computing units include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit performs the various methods and processes described above, such as the construction quality monitoring method described in Embodiment 1. For example, in some embodiments, the construction quality monitoring method can be implemented as a computer software program tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the computing unit, one or more steps of the construction quality monitoring method described above can be performed. Alternatively, in other embodiments, the computing unit can be configured to perform the construction quality monitoring method by any other suitable means (e.g., by means of firmware).

[0112] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0113] The program code used to implement the methods of this application may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0114] In the context of this application, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0115] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0116] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0117] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0118] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0119] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0120] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for monitoring the quality of construction projects, characterized in that, Includes the following steps: S1, Determine the area to be inspected where the building walls are located; S2, the area to be detected is divided into several sub-regions, and the center point of each sub-region is determined; S3, strike the center point of each sub-region and collect the echo sound wave signal; S4, determine whether the center of each sub-region is hollow based on the sound wave signal, and merge adjacent sub-regions with hollow centers into a preliminary hollow region; S5, the sub-region at the center of the initial hollow area is determined as the first confirmed hollow area, and the sub-region at the edge of the initial hollow area is redefined as the area to be detected; S6, for the area to be detected that has been redefined in S5, repeat steps S2 to S4, and determine the sub-region at the center of the preliminary hollow area obtained again as the second confirmed hollow area. S7, merge the first confirmed hollow area and the second confirmed hollow area into the final confirmed hollow area.

2. The construction engineering quality monitoring method according to claim 1, characterized in that, In step S3, the center point of each sub-region is struck using a wall-striking device, which includes: First slide; A sliding shaft slides in conjunction with the first slide rail. The first end of the sliding shaft is provided with a magnetic material and is located inside the first slide rail. The main body of the sliding shaft extends axially until the second end extends out of the first slide rail. The second end of the sliding shaft is provided with a hammer. The middle part of the sliding shaft is provided with a protrusion. A slider is disposed within a first slide rail, and an electromagnet for attracting the magnetic material is disposed within the slider. A first spring is disposed in a first slide rail. The first end of the first spring is fixedly connected to the slider, and the second end of the first spring extends toward the protrusion. An air chamber, located within the first slide and in contact with the slider, is used to provide the slider with a supporting force toward the hammer; In the initial state, the air bag is inflated, providing support for the slider. The electromagnet attracts the magnetic material until they are in contact, and the first spring is at a first compression level. When a strike is triggered, the electromagnet is deactivated, and the first spring drives the sliding shaft to slide towards the second end until the hammer strikes the wall. After the hammer rebounds from the wall, the air bag is depressurized, and the sliding shaft applies a force to the slider along the first spring, causing the slider to slide along the first track, completing the depressurization after the hammer rebounds.

3. The construction engineering quality monitoring method according to claim 2, characterized in that, The air bag is provided with an inflation port and a pressure relief valve extending beyond the first slide. The inflation port is connected to an inflation mechanism. When the inflation mechanism inflates the air bag, the air bag is in an inflated state; when the pressure relief valve is opened, the air bag is in a depressurized state.

4. The construction engineering quality monitoring method according to claim 2, characterized in that, The wall-tapping device includes a second spring; The second spring is disposed in the first slide rail, and the first spring and the second spring are respectively located on both sides of the protrusion; the first end of the second spring is fixedly connected to the first slide rail, and the second end of the second spring extends toward the protrusion; When the hammer strikes the wall, the second spring is under a second compression, which is less than the first compression.

5. A construction project quality monitoring method according to claim 2, characterized in that, The wall striking device includes a soundproof cover, which is located outside the first slide rail and has an opening facing the hammer. When a strike is triggered, the opening of the soundproof cover is pressed against the area of ​​the wall to be tested.

6. The construction engineering quality monitoring method according to claim 2, characterized in that, A photosensitive switch is provided on the side of the first slide that faces away from the hammer, directly opposite the apex of the hammer. For each sub-region, before the wall-tapping device strikes, a first beam is projected onto the area to be tested. The first beam includes the center point of the sub-region. When the wall-tapping device moves to a position where the photosensitive switch is directly facing the first beam, the photosensitive switch is triggered, controlling the electromagnet to close and stimulating the hammer to strike the wall.

7. The construction engineering quality monitoring method according to claim 1, characterized in that, In step S4, the method for determining whether the center of each sub-region is hollow based on the sound wave signal is as follows: The amplitude of the sound wave signal is compared with a preset amplitude threshold. If the amplitude of the sound wave signal is greater than the preset amplitude threshold, the center of the sub-region is hollow; otherwise, the center of the sub-region is dense.

8. A construction project quality monitoring method according to claim 7, characterized in that, In step S6, when steps S2 to S4 are executed again, the amplitude threshold is corrected using the following method: Prefabricated hollow test areas of different sizes were constructed, and acoustic signals were collected from the edges of the hollow test areas of different sizes. Calculate the area of ​​the initial hollow area obtained from the first merging, and find the hollow test area from the prefabricated hollow area that is closest to the area of ​​the initial hollow area; The amplitude of the acoustic signal collected at the edge of the hollow test area is used as the corrected amplitude threshold.

9. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-8.

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