A wireless pipe pile hole imaging instrument

Abstract

A wireless pipe pile hole imaging device includes a camera module, a connecting rod, a positioning tripod, a microwave relay, and a host computer; the camera module includes a camera assembly, a microwave transmitter, and a transparent waterproof shell, and the camera assembly and the microwave transmitter are both located in the transparent waterproof shell; the connecting rod is connected to the top of the transparent waterproof shell, and a plurality of sensing marbles are spaced apart on the connecting rod; a square channel is provided in the positioning tripod; the middle portion of the inner wall of the channel is recessed inward to form a groove, and an induction switch is provided in the groove, and the induction switch is inductively connected to the sensing marble and the camera module respectively; the microwave relay is provided at the pipe pile hole, and the microwave transmitter, the microwave relay, and the host computer are connected in sequence via signals. The present invention greatly improves the quality of the image obtained through equidistant static imaging, and gets rid of the constraints of data cables and power cables, can be easily operated, and greatly improves the detection efficiency and imaging effect.

Description

Technical field

[0001] The present invention particularly relates to a wireless pipe pile in-hole imaging instrument. [Background Technology]

[0002] Pipe piles, widely used in engineering projects, require quality inspection. Commonly used inspection methods include static load, high-strain, and low-strain reflected wave methods. The first two methods are costly and primarily used to test bearing capacity. While the latter is highly efficient, it has several drawbacks for inspecting pipe piles: When a pile has multiple defects, only the first, more serious defect can be detected; significant energy loss in the reflected wave makes it difficult to detect deeper defects; vertical cracks cannot be detected; and the size of defects cannot be quantified.

[0003] The in-hole camera method developed in recent years has effectively solved these problems. The method uses a camera with a video cable to be placed in the pile hole, and dynamic video is observed and collected at the other end. The video is then processed by software to form a columnar expansion diagram of the hole. However, existing in-hole camera equipment has the following disadvantages:

[0004] (1) The video cable connecting the camera and the acquisition equipment is flexible. Due to the use of a flexible video cable, although the camera uses various brackets to support the hole wall, the concrete in the pile hole is not uniform due to the centrifugal process, and there is often slurry attached to it. In this way, the camera bracket contacts the hole wall and shakes when moving up and down, making it difficult to focus accurately.

[0005] (2) Using video recording and dynamic video, the resolution is low and the effect is poor. It is very time-consuming to review the collected video later, and it will be missed if you are not careful.

[0006] (3) Use a top-mounted camera. Currently, most in-hole camera equipment is modified from the camera used in geological core drilling holes. They use a top-mounted camera (the camera shoots downward). The core drilling holes are very regular round holes. As long as the camera is placed down, it is very easy to center it. Software can also be used to convert the image shot downward into a side view, and the effect is acceptable. However, in uneven pipe piles, the camera cannot be centered well, and images that are biased to one side are often collected. After software processing, the images are seriously distorted.

[0007] In summary, the current in-hole camera technology uses video recording with flexible connecting wires, which has poor imaging effects, is extremely time-consuming and prone to omissions when reviewing, and has low detection efficiency. [Summary of the invention]

[0008] In order to overcome the defects of the prior art, the present invention provides a wireless pipe pile in-hole imaging device.

[0009] The present invention is implemented as follows: a wireless pipe pile hole imaging device, including a camera module, a connecting rod, a positioning tripod, a microwave relay and a host computer; the camera module includes a camera assembly, a microwave transmitter and a transparent waterproof shell, and the camera assembly and the microwave transmitter are both located in the transparent waterproof shell; the connecting rod is connected to the top of the transparent waterproof shell, and a plurality of induction marbles are arranged on the connecting rod at intervals; a square channel is provided in the positioning tripod; the middle part of the inner wall of the channel is concave inward to form a groove, and an induction switch is provided in the groove, and the induction switch is inductively connected to the induction marbles and the camera module respectively; the microwave relay is provided at the pipe pile hole mouth, and the microwave transmitter, the microwave relay and the host computer are connected in sequence through signals.

[0010] Preferably, a connecting port is provided at the top of the transparent waterproof shell, and an inner wall of the connecting port is provided with an internal thread; an external thread is provided at the lower end of the connecting rod, and the connecting rod is rotatably connected to the connecting port through the external thread and the internal thread.

[0011] Preferably, the camera module also includes four LED light strips, a battery, and a battery charging port, all of which are located in a transparent waterproof shell. The four LED light strips are respectively arranged upright at the four corners of the transparent waterproof shell; the battery charging port is arranged in the connecting port and is electrically connected to the battery; the battery is electrically connected to the camera assembly and the LED light strip, respectively.

[0012] Preferably, the camera module further includes a memory and a data export port, and the memory and the data export port are electrically connected.

[0013] Preferably, the camera assembly includes four cameras, and the four cameras are evenly arranged in pairs along the circumference.

[0014] Preferably, the connecting rod comprises a plurality of segmented rods, and the segmented rods are connected in sequence via butt nuts.

[0015] The advantages of the present invention are: through the equally spaced static imaging technology, the quality of the collected images is greatly improved, the image synthesis is simple and easy, and the effect of the obtained expanded view of the inside of the hole is greatly improved, which can well describe the situation of the entire pipe pile; the camera does not need to be supported on the hole wall and is not prone to shaking; it is free from the constraints of data cables and power cables, can be easily operated, and the failure rate is also reduced, so that the detection efficiency and imaging effect are greatly improved.

Brief Description of the Drawings

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 The figure is a structural diagram of a wireless pipe pile in-hole imaging device according to the present invention.

[0018] Figure 2Schematic diagram of the structure of the camera module in the present invention.

[0019] Figure 3 Schematic diagram of the structure of the connecting rod in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the positioning tripod in the present invention. [Specific implementation method]

[0021] See also Figure 1 and Figure 2 A wireless pipe pile borehole imaging device 100 includes a camera module 1, a connecting rod 2, a positioning tripod 3, a host computer 4, and a microwave relay 5. The camera module 1 includes a camera assembly 11, a microwave transmitter 12, a transparent waterproof shell 13, four LED light strips 14, a battery 15, and a battery charging port 16, all located within the transparent waterproof shell 13. The camera module 1 also includes a memory 17 and a data export port 18. The camera assembly 11 and the microwave transmitter 12 are both located within the transparent waterproof shell 13. The four LED light strips 14 are respectively arranged upright at the four corners of the transparent waterproof shell 13. The battery charging port 16 is located within a connection port 19 described below and is electrically connected to the battery 15. The battery 15 is electrically connected to the camera assembly 11 and the LED light strip 14, respectively. The memory 17 is electrically connected to the data export port 18. The camera assembly 11 includes four cameras 11a, which are evenly arranged along the circumference in pairs.

[0022] Please refer to Figure 3 The connecting rod 2 is connected to the top of the transparent waterproof housing 13, and a plurality of sensing marbles 23 are spaced apart on the connecting rod 2. The top of the transparent waterproof housing 13 is provided with a connecting port 19, the inner wall of which is provided with an internal thread 191. The lower end of the connecting rod 2 is provided with an external thread 211, and the connecting rod 2 is rotatably connected to the connecting port 19 via the external thread 211 and the internal thread 191. The connecting rod 2 preferably includes a plurality of segmented rods 21, each of which is sequentially connected via a butt nut 22.

[0023] Please refer to Figure 1 and Figure 4The positioning tripod 3 is provided with a square channel 31; the middle part of the inner wall of the channel 31 is recessed inward to form a groove 33, and an induction switch 331 is provided in the groove 33, and the induction switch is inductively connected to the induction marble 23 and the camera module 1 respectively; the microwave relay 5 is provided at the hole of the pipe pile using a cover plate with holes (not shown), preferably just above the hole of the pipe pile, and the microwave transmitter 12, the microwave relay 5, and the host computer 4 are connected in sequence through signals. The leveler 32 is provided on the tripod platform 35, and the leveler 32 is used to adjust the level of 35 to ensure the plumbness of the channel 31. Three adjustable supports 34 are respectively supported between the bottom of the positioning tripod platform 35 and the ground to make the positioning tripod platform 35 reach a horizontal state. A pad 6 is also provided between each adjustable support 34 and the ground. When the ground on site is uneven or weak, a pad 6 with greater rigidity can be used to lay on the ground for reinforcement. The microwave relay 5 is used to receive the photo information sent from the microwave transmitter 12 and transmit it to the host computer 4, which can well relay the signal; the function of the groove 33 and the induction switch 331 is to provide induction when the induction marble 23 enters.

[0024] Please refer to Figure 2 The camera 11a is a wide-angle camera, that is, four side-mounted cameras 11a are used. Because the inner hole size of the pipe pile 8 is limited, the four cameras 11a can shoot the inner wall of the pipe pile 8 in 360 degrees; the microwave transmitter 12 can send the taken photos to the microwave relay 5 and be received by the host computer 4, thus getting rid of the cumbersome video connection cable; the LED light bar 14 is frosted to form soft diffuse reflection light, which is beneficial to improve the clarity of the photos; the transparent waterproof shell 13 prevents residual water in the pipe from entering the camera module 1; the battery 15 provides power for shooting and lowers the center of gravity of the device to make the device stable; the memory 17 stores the taken photos and can be transmitted out through the data export port 18 when returning to the room, as a second security measure for the data; the battery charging port 16 and the data export port 18 are both hidden in the small space of the connection port 19, and are sealed and waterproof during the test. When the induction marbles 23 arranged at equal intervals at a certain distance on the connecting rod 2 enter the groove 33, the operator will have a feeling of pause, and will be still for several seconds. The induction switch 331 in the groove 33 sends a shooting signal to the camera 11a shutter to shoot. With enough illumination, the shutter time is very short, and the imaging clarity is higher than the camera of dynamic imaging. The host computer 4 mainly plays the role of displaying, monitoring, and collecting the signal transferred from the microwave relay 5, i.e., the hole photos at each position, and the later stage can form the full pile inner side expansion diagram by software. Because the photos collected are frontal shots, it is very simple and can not be deformed when adopting the splicing algorithm, and the inner side expansion diagram formed is clear and intuitive.

[0025] The present invention uses equidistant, static photography for image capture. The side-on, static photography significantly improves image quality, making software stitching easier. The resulting expanded view of the inside of the hole is significantly improved, effectively depicting the entire pile 8. Compared to the dynamic video used in the prior art, this technology is much more convenient for reviewing each static photo, and each static photo also boasts significantly higher clarity and resolution. The present invention uses a rigid connecting rod 2 to position the tripod 3 at the pile top for centering. This eliminates the need for camera 11a to be supported by the hole wall, making it less susceptible to vibration. In the prior art, the camera is connected via a flexible cable, requiring support and contact with the hole wall. This creates vibrations during up-and-down movement, impacting image clarity. The present invention utilizes wireless relay, with a bidirectional antenna-based relay signal receiver / transmitter located at the pile hole entrance. Since the data volume of photos is significantly smaller than that of videos, stable data transmission is ensured. The entire structure is freed from the constraints of data and power cables, enabling convenient operation and reducing failure rates.

Claims

1. A wireless pipe pile in-hole imaging device, mounted on a pipe pile, characterized by: It includes a camera module, a connecting rod, a positioning tripod, a microwave relay and a host computer; the camera module includes a camera assembly, a microwave transmitter and a transparent waterproof shell, and the camera assembly and the microwave transmitter are both located in the transparent waterproof shell; the connecting rod is connected to the top of the transparent waterproof shell, and a plurality of induction marbles are arranged on the connecting rod at intervals; the positioning tripod is provided with a square channel; the middle part of the inner wall of the channel is concave inward to form a groove, and an induction switch is provided in the groove, and the induction switch is inductively connected to the induction marble and the camera module respectively; the microwave relay is provided at the hole of the pipe pile, and the microwave transmitter, the microwave relay and the host computer are connected in sequence through signals; The camera module also includes four LED light strips, a battery, and a battery charging port, all located within the transparent waterproof housing. The four LED light strips are respectively disposed vertically at the four corners of the transparent waterproof housing. The battery charging port is disposed within the connector and is electrically connected to the battery. The battery is electrically connected to the camera assembly and the LED light strip, respectively. The LED light strip is frosted to provide soft, diffusely reflected light. The camera assembly includes four cameras, and the four cameras are evenly arranged in pairs along the circumference. When the induction marbles arranged at equal intervals on the connecting rod enter the groove, they remain stationary for several seconds. The induction switch in the groove sends a shooting signal to the camera shutter to take the picture. With sufficient light, the shutter time is very short, and the image clarity is higher than that of a dynamic imaging camera. The top of the transparent waterproof shell is provided with a connecting port, the inner wall of the connecting port is provided with an internal thread; the lower end of the connecting rod is provided with an external thread, and the connecting rod is rotatably connected to the connecting port through the external thread and the internal thread.

2. The wireless pile in-hole imaging device according to claim 1, wherein: The camera module further comprises a memory and a data export port, and the memory and the data export port are electrically connected.

3. The wireless pile hole imaging device according to claim 1, wherein: The connecting rod comprises a plurality of section rods, and the section rods are connected in sequence through butt nuts.

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