WO2017210940A1

WO2017210940A1 - Camera probe for pipeline inspection and rapid pipeline video inspection system and method

Info

Publication number: WO2017210940A1
Application number: PCT/CN2016/087839
Authority: WO
Inventors: 刘志国; 罗欠; 卢在贺; 吴凡华; 余佳; 张婉珈; 李�浩
Original assignee: 武汉中仪物联技术股份有限公司
Priority date: 2016-06-08
Filing date: 2016-06-30
Publication date: 2017-12-14

Abstract

A rapid pipeline video inspection system comprises a camera probe and a collection control host. The camera probe comprises a housing (8), a camera (5) connected to the housing (8), and a circuit board (3) disposed in the housing (8). The camera (5) is a digital camera. Two ends of the digital camera are connected to the housing (8) by a rotary shaft. The rotary shaft is provided with a drive motor. The circuit board (3) comprises a drive circuit of the drive motor, a microcontroller, and a network transmission module. The camera probe further comprises a battery module (1). The battery module (1) is mechanically connected to the housing (8). The collection control host is a mobile terminal installed with an inspection module. The overall structure of the system is light, the collection control host can control the camera probe wirelessly and remotely, and operation is easy such that field work efficiency is greatly improved.

Description

Camera probe and pipeline fast video detection system and method for pipeline inspection

Technical field

The invention belongs to the field of pipeline detection of sewage, rainwater, petroleum, gas and the like, and particularly relates to a camera and pipeline rapid video detection system and method for pipeline detection.

Background technique

When excavating and repairing underground pipelines such as municipal drainage underground drainage pipes, agricultural water underground drainage pipes, industrial water underground drainage pipes, and tap water underground drainage pipes, it is necessary to understand the internal conditions of drainage pipes, such as displacement of pipelines, misalignment of wellheads, and leakage. Damage and other circumstances.

At present, the pipeline rapid detection system in the field of underground pipeline inspection has relatively heavy equipment and complex structure, including probes, cable wires, support rods, and acquisition control hosts. The low-resolution analog camera used in the probe collects and controls the image captured by the host computer as an analog image, and the quality is poor, which cannot realize the refined interpretation of the pipeline. To assemble the system on site, you need to connect the controller through the cable, and the cable needs to pass through the support rod. The other end of the cable needs to be connected to the probe. The whole equipment is cumbersome on-site assembly, the system is cumbersome, the mobile operation is inconvenient, and the field work efficiency is low.

technical problem

The technical problem to be solved by the present invention is to provide a camera and pipeline rapid video detection system and method for pipeline detection, which is convenient to operate and improves on-site working efficiency.

Technical solution

The technical solution adopted by the present invention to solve the above technical problems is:

An imaging probe for pipeline inspection, comprising a casing, a camera connected to the casing, and a circuit board disposed in the casing, wherein the camera is a digital camera, and the two ends of the digital camera pass through the rotating shaft and the shell The body connection is provided with a transmission motor on the rotating shaft; the circuit board comprises a driving circuit of the driving motor, a microcontroller and a network transmission module, the output end of the digital camera is connected with the network transmission module, and the output end of the microcontroller passes the transmission motor The driving circuit is connected to the transmission motor, and the microcontroller is also connected to the network transmission module;

The camera probe further includes a battery module, the battery module is mechanically connected to the housing, and the connection is provided with a positive and negative pole connected to the circuit board.

According to the above scheme, the housing is provided with a light source connected to the microcontroller.

According to the above scheme, the digital camera has more than 2 million pixels and has an optical zoom of 30 times or more.

According to the above scheme, the camera probe further includes a laser range finder.

According to the above scheme, the laser range finder is a point laser range finder.

According to the above scheme, the camera probe further includes a sensor group for acquiring a state parameter, and an output end of the sensor group is connected to the microcontroller.

According to the above solution, the rotating shaft is provided with a limiting potentiometer, and the output end of the limiting potentiometer is connected to the microcontroller.

According to the above solution, the circuit board further includes a battery power collection module, and an output end of the battery power collection module is connected to the microcontroller.

According to the above solution, the specific connection manner between the battery module and the housing is: the battery module is provided with a connection hole, and the connection hole of the housing and the battery module is connected by a spring pin; the bottom of the battery module is provided with a power adapter plate. The housing is provided with a thimble connected to the circuit board, and the thimble is in contact with the power adapter plate; a sealing ring is arranged at the connection between the battery module and the housing.

According to the above solution, the housing is provided with an antenna connected to the network transmission module.

A pipeline fast video detection system includes a camera probe and an acquisition control host, wherein the camera probe comprises a housing, a camera connected to the housing, a circuit board disposed in the housing, and the camera is a digital camera, the number The two ends of the camera are connected to the housing through the rotating shaft, and the rotating shaft is provided with a transmission motor; the circuit board comprises a driving circuit of the driving motor, a microcontroller and a wireless transmission module, and the output end of the digital camera is connected with the network transmission module, and the micro The output end of the controller is connected to the transmission motor through a drive circuit of the drive motor, and the microcontroller is also connected to the network transmission module; the camera probe further includes a battery module, the battery module is mechanically connected with the housing, and the connection portion is provided with The positive and negative electrodes of the circuit board connection;

The acquisition control host is a mobile terminal equipped with a detection module, and is configured to receive a digital signal from the camera probe from the network transmission module, and the detection module receives the control instruction and the detection instruction through the human-machine interaction mode, and the control instruction is transmitted from the network transmission module. It is sent to the camera probe, and the corresponding operation is performed according to the detection command and data storage is performed.

According to the above system, the housing is provided with a light source connected to the microcontroller.

According to the above system, the camera probe further includes a laser range finder.

According to the above system, the camera probe further includes a sensor group for acquiring a state parameter, and the output of the sensor group is connected to the microcontroller.

According to the above system, the rotating shaft is provided with a limiting potentiometer, and the output end of the limiting potentiometer is connected to the microcontroller.

According to the above system, the circuit board further includes a battery power collection module, and an output of the battery power collection module is connected to the microcontroller.

According to the above system, the network transmission module comprises a wired transmission interface and/or a wireless transmission interface.

According to the above system, the network transmission module includes a wireless transmission interface, and the wireless transmission interface is provided with a detachably connected antenna.

According to the above system, the specific connection manner between the battery module and the housing is: the battery module is provided with a connecting hole, and the connecting hole of the housing and the battery module is connected by a spring pin; the bottom of the battery module is provided with a power adapter board. The housing is provided with a thimble connected to the circuit board, and the thimble is in contact with the power adapter plate; a sealing ring is arranged at the connection between the battery module and the housing.

According to the above system, the housing is sealed, and a blow hole is provided in the housing.

The housing is provided with a touch-sensitive switch with a waterproof rating of IP68, which is connected to the microcontroller.

A detection method implemented by using the above-mentioned pipeline wireless fast video detection system, characterized in that it comprises the following steps:

S1, the mobile terminal equipped with the detection module and the camera probe are connected to the network;

S2. The digital video data collected by the digital camera in the camera probe and the data collected by the sensor group are sent to the mobile terminal equipped with the detection module through the network transmission module; the detection module superimposes the data collected by the sensor group on the digital video collected by the digital camera. Displayed in the data;

S3. The detecting module receives the control instruction and the detecting instruction by means of human-computer interaction;

The control command is sent to the camera probe through the network transmission module, and the corresponding microprocessor is called to perform the command operation;

The detection module further includes a calculation module for calculating and generating a detection report according to the pipeline detection standard by using the input parameters;

The detection module generates a detection report according to the detection instruction and performs data storage.

According to the above method, the control command includes a drive motor control command, a digital camera control command, and a light source switch command; and the detection command includes a picture storage instruction, a video storage instruction, a write detection information instruction, and a detection information storage instruction.

Beneficial effect

The beneficial effects of the invention are:

1. The invention selects a digital camera, and the collected video data is all digital signals, and is transmitted to the acquisition control host by a network transmission module in a wired or wireless manner, and the collection control host can be any mobile terminal equipped with the detection module. Control commands such as zoom and rotation received by human-computer interaction such as touch screen are transmitted to the camera probe by wire or wirelessly, and the microcontroller controls the execution of the command; the camera probe is light in structure, and the acquisition control host can be a mobile phone or tablet that is carried around. Such as mobile terminals, without the traditional bulky mainframe, full digital transmission, the acquisition control host can wirelessly and remotely control the camera probe, and the operation is convenient; in the specific application, only the mobile terminal equipped with the detection module needs to be connected with the camera cable or wireless The connection can be operated without the need for complicated cable connections, which greatly improves the efficiency of the field work.

2. By adding a light source, a laser range finder, a sensor group, etc., the function of the camera probe is further added, so that the remote acquisition control host can acquire more information in the pipeline.

3. The use of a limit potentiometer allows the digital camera to rotate within a defined angle.

4, through the detachable battery module, the battery can be replaced in time, suitable for long-term pipeline inspection, and through the spring pin way can be quickly disassembled and installed.

DRAWINGS

1 is a perspective view of an image pickup probe according to an embodiment of the present invention.

2 is still another perspective view of the imaging probe in accordance with an embodiment of the present invention.

Figure 3 is a rear elevational view of the camera probe in accordance with one embodiment of the present invention.

4 is a cross-sectional view showing a battery module and a casing according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a circuit board according to an embodiment of the present invention.

FIG. 6 is a flowchart of a method according to an embodiment of the present invention.

In the picture: Picture: 1-battery module, 1-1-power adapter board, 2-antenna, 3-circuit board, 4-light source, 5-digital camera, 6-point laser range finder, 7-line laser Indicator, 8-shell, 8-1-pin, 9-connector, 9-1-pull, 9-2-spring pin, 10-pin, 11-seal.

Embodiments of the invention

The present invention will be further described below in conjunction with specific examples.

The invention provides a pipeline rapid video detection system, comprising a camera probe and an acquisition control host. The camera probe comprises a housing 8 , a camera connected to the housing 8 , and a housing disposed as shown in FIG. 1 to FIG. 3 . 8 is a circuit board 3, the camera is a digital camera 5, the two ends of the digital camera 5 are connected to the housing 8 through a rotating shaft, and the rotating shaft is provided with a transmission motor; the circuit board 3 is as shown in FIG. A drive motor, a microcontroller and a network transmission module for driving the rotation of the rotating shaft, the output end of the digital camera is connected to the input end of the microcontroller, the output end of the microcontroller is connected to the transmission motor, and the microcontroller is also connected to the network transmission module. The camera probe further includes a battery module 1 , the battery module 1 is mechanically connected to the housing 8 , and the connection is provided with a positive and negative pole connected to the circuit board 3; the collection control host is equipped with a detection module. a mobile terminal, configured to receive a digital signal from the camera probe from the network transmission module, and the detection module receives the control instruction, the detection instruction, and the input parameter by human-computer interaction, and the control instruction is A transmission module to a network camera probe, performs the corresponding operation according to the detection instruction and data storage.

Preferably, the housing 8 is provided with a light source 4 connected to the microcontroller; the camera probe may further comprise a laser range finder, according to its role in pipeline detection, the laser range finder includes point laser ranging Instrument 6.

In this embodiment, the digital camera has a pixel of 2 million or more and has an optical zoom of 30 times or more.

Further preferably, in order to be able to obtain more state parameters in the pipeline, the camera probe further comprises a sensor group for acquiring state parameters, the output of which is connected to the microcontroller. The sensor group may be an air pressure sensor, a humidity sensor, a line laser pointer 7, or the like. The function of the line laser pointer 7 is that the linear laser light is a continuous straight line, and if the line has a break point, it indicates that there is a crack.

Further, the rotating shaft is provided with a limiting potentiometer, and an output end of the limiting potentiometer is connected to the microcontroller.

Preferably, the circuit board further includes a battery power collection module, and an output of the battery power collection module is connected to the microcontroller.

Preferably, the specific connection manner between the battery module and the housing is as shown in FIG. 4: the battery module 1 is provided with a connection hole, and the connection hole of the housing 8 and the battery module 1 is connected by a spring pin 9-2; the battery module 1 is provided with a power adapter plate 1-1 at the bottom, the housing 8 is provided with a thimble 8-1 connected to the circuit board 3, the thimble 8-1 is in contact with the power adapter plate 1-1; the battery module 1 and the case A sealing ring 11 is provided at the joint of the body 8. This detachable connection allows the battery to be replaced at any time, for long-term work, and is waterproof and moisture-proof after connection. Further preferably, for the convenience of operation, both ends of the spring pin 9-2 are provided with a pull ring 9-1, which constitute a connecting member 9. Further, a recessed hole is provided in the middle of the bottom of the battery module 1, the power adapter plate 1-1 is disposed in the recessed hole, the top of the housing 8 is provided with a protrusion, and the ejector pin 8-1 is located at the top of the protrusion It is just connected to the power adapter plate 1-1, and a sealing ring 11 is arranged between the concave hole and the protrusion. In this embodiment, the housing 8 is L-shaped, and the circuit board 3 has two blocks, one of which is disposed at the top of the housing 8, and is connected to the power adapter plate 1-1 of the battery module 1 through the ejector pin 8-1; In the lateral direction of the housing 8.

The network transmission module includes a wired transmission interface and/or a wireless transmission interface. In order to improve the wireless transmission capability in a harsh environment, the housing may also be provided with an antenna 2 connected to the wireless transmission interface of the network transmission module, the antenna being detachable and sealed at the antenna interface.

The casing is sealed, and the air hole 10 is arranged on the casing. The air pressure in the casing is made larger than the external air pressure, thereby achieving the function of waterproofing. The probe of the embodiment can realize IP68. Waterproof rating.

In this embodiment, the camera probe is connected to the microprocessor by using a touch sensitive switch with a waterproof rating of IP68. The red indicator light indicates that the camera battery module is in good contact, and the green light indicates that the probe is powered.

The camera probe is compact and lightweight, requires no cable connection, and can realize refined interpretation and digital wireless transmission of the pipeline, and provides a digitally transmitted signal for wireless transmission to the acquisition control host, so that the acquisition control host can be a mobile device equipped with a detection module. terminal.

A detection method implemented by using the above-mentioned pipeline fast video detection system, as shown in FIG. 6, includes the following steps:

The detection module performs a corresponding operation according to the detection instruction and performs data storage.

The control command includes a drive motor control command, a digital camera control command, and a light source switch command. The detection command includes a picture storage instruction, a video storage instruction, a detection report generation instruction, and a detection report storage instruction.

The detection module is an application software system installed in a mobile terminal such as a computer, a mobile phone or a tablet with wireless transmission function, and the application software can run on various system platforms such as WINDOWS, ios, ANDROID. A computer or tablet with application software installed, connected to the camera probe via a wireless network, and controls the camera probe to capture video, focus, zoom, rotate, light adjustment, laser ranging, air pressure, power, computer or platform self-collected GIS information Display and collect video on the application software interface, superimpose distance information, engineering information, time, date, power and working time information, GIS information on the video; and embed the results into the GIS platform through GIS positioning information.

The system combines digital camera technology and network transmission technology to make the digitalization of the pipeline rapid detection system a reality. The site collects digital results through terminals with wireless transmission functions, and can collect results on site through 5G or other network transmission systems. Directly digitally transmitted to the background GIS geographic information system server platform for backup and management.

Open the application software system, first initialize the data, and then receive data such as high-definition video and sensor data transmitted wirelessly. The sensor data includes distance data, air pressure information, battery power information, and positioning data (GPS module or Beidou module acquisition). The video stream is superimposed and processed on the received data, and then the data is parsed and processed for real-time display. Synchronize the display on the interface. Data analysis and processing include coordinate analysis, operation command processing, endurance analysis, and video stream analysis.

The tester uses the human-computer interaction interface to control the lens part through command operation, including rotation of the drive motor, brightness adjustment of the light, video control (video focusing, zooming in and out), state switching (including font color setting, video bit rate setting, etc.). ).

The final test results are uploaded to the backend data server over the wireless network.

The input parameters are pipeline attributes, etc., which can be input through human-computer interaction mode or directly from the geographic information system. The calculation module uses the input parameters to calculate and generate a test report according to the pipeline detection standard, and the pipeline detection standard The industry standard known to the person in the field, the formula is also public, only need to set the formula in the calculation module, the detection data can be calculated in the calculation module by using the detected data and the input parameters, and then the detection is generated according to the detection instruction. The report, which can be stored and uploaded to other platforms using a wireless network, such as for storage and display in a geographic information system.

The above embodiments are only used to illustrate the design and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement them. The scope of protection of the present invention is not limited to the above embodiments. Therefore, equivalent changes or modifications made in accordance with the principles and design of the invention disclosed herein are within the scope of the invention.

Claims

An imaging probe for pipeline inspection, comprising a casing, a camera connected to the casing, and a circuit board disposed in the casing, wherein the camera is a digital camera, and the two ends of the digital camera pass through the rotating shaft and the shell The body connection is provided with a transmission motor on the rotating shaft; the circuit board comprises a driving circuit of the driving motor, a microcontroller and a network transmission module, the output end of the digital camera is connected with the network transmission module, and the output end of the microcontroller passes the transmission motor The driving circuit is connected to the transmission motor, and the microcontroller is also connected to the network transmission module;

The camera probe further includes a battery module, the battery module is mechanically connected to the housing, and the connection is provided with a positive and negative pole connected to the circuit board.
The camera probe for pipeline inspection according to claim 1, wherein the housing is provided with a light source connected to the microcontroller.
The camera probe for pipeline inspection according to claim 1, wherein the casing is sealed, and a blow hole is provided in the casing.
The camera probe for pipeline inspection according to claim 1, wherein the camera probe further comprises a laser range finder.
The camera probe for pipeline inspection according to claim 4, wherein said housing is provided with a touch-sensitive switch of waterproof rating IP68, which is connected to said microcontroller.
The camera probe for pipeline inspection according to claim 1, wherein the camera probe further comprises a sensor group for acquiring a state parameter, and an output end of the sensor group is connected to the microcontroller.
The camera probe for pipeline inspection according to claim 1, wherein the rotating shaft is provided with a limiting potentiometer, and an output end of the limiting potentiometer is connected to the microcontroller.
The camera probe for pipeline inspection according to claim 1, wherein the circuit board further comprises a battery power collection module, and an output of the battery power collection module is connected to the microcontroller.
The camera probe for pipeline inspection according to claim 1, wherein the battery module and the housing are connected in a specific manner: the battery module is provided with a connection hole, and the connection hole between the housing and the battery module is passed. The spring pin is connected; the bottom of the battery module is provided with a power adapter plate, and the housing is provided with a thimble connected to the circuit board, the thimble is in contact with the power adapter plate; and a sealing ring is arranged at the connection between the battery module and the housing.
The camera probe for pipeline inspection according to claim 1, wherein the network transmission module comprises a wireless transmission interface, and the wireless transmission interface is provided with a detachably connected antenna.
A pipeline fast video detection system includes a camera probe and an acquisition control host, wherein the camera probe comprises a housing, a camera connected to the housing, a circuit board disposed in the housing, and the camera is a digital camera, the number The two ends of the camera are connected to the housing through the rotating shaft, and the rotating shaft is provided with a transmission motor; the circuit board comprises a driving circuit of the driving motor, a microcontroller and a network transmission module, and the output end of the digital camera is connected with the network transmission module, and the micro The output end of the controller is connected to the transmission motor through a drive circuit of the drive motor, and the microcontroller is also connected to the network transmission module; the camera probe further includes a battery module, the battery module is mechanically connected with the housing, and the connection portion is provided with The positive and negative electrodes of the circuit board connection;

The acquisition control host is a mobile terminal equipped with a detection module, and is configured to receive a digital signal from the camera probe from the network transmission module, and the detection module receives the control instruction, the detection instruction, and the input parameter through a human-machine interaction manner, and the control instruction is The network transmission module sends the camera probe to perform the corresponding operation according to the detection instruction.
The pipeline rapid video detection system according to claim 11, wherein said camera probe further comprises a laser range finder.
The pipeline rapid video detection system according to claim 11, wherein said rotating shaft is provided with a limiting potentiometer, and an output end of the limiting potentiometer is connected to said microcontroller.
The pipeline fast video detection system according to claim 11, wherein said network transmission module comprises a wired transmission interface and/or a wireless transmission interface.
The pipeline rapid video detection system according to claim 11, wherein the specific connection manner between the battery module and the housing is: a connection hole is arranged on the battery module, and a connection hole of the housing and the battery module passes through the spring column. The pin connection is provided; the bottom of the battery module is provided with a power adapter plate, and the housing is provided with a thimble connected to the circuit board, the thimble is in contact with the power adapter plate; and a sealing ring is arranged at the connection between the battery module and the housing.
The pipeline fast video detection system according to claim 11, wherein the network transmission module comprises a wireless transmission interface, and the wireless transmission interface is provided with a detachably connected antenna.
The pipeline rapid video detection system according to claim 11, wherein the casing is sealed and a blow hole is provided in the casing.
The pipeline rapid video detection system according to claim 11, wherein said housing is provided with a touch-sensitive switch of waterproof rating IP68, which is connected to said microcontroller.
A detection method implemented by the pipeline fast video detection system according to claim 11, characterized in that it comprises the following steps:

S1, the mobile terminal equipped with the detection module and the camera probe are connected to the network;

S2. The digital video data collected by the digital camera in the camera probe and the data collected by the sensor group are sent to the mobile terminal equipped with the detection module through the network transmission module; the detection module superimposes the data collected by the sensor group on the digital video collected by the digital camera. Displayed in the data;

S3. The detecting module receives the control instruction, the detection instruction, and the input parameter by means of human-computer interaction;

The control command is sent to the camera probe through the network transmission module, and the corresponding microprocessor is called to perform the command operation;

The detection module further includes a calculation module for calculating and generating a detection report according to the pipeline detection standard by using the input parameters;

The detection module performs a corresponding operation according to the detection instruction and performs data storage.
The detecting method according to claim 19, wherein said control command comprises a drive motor control command, a digital camera control command and a light source switch command; said detection command comprises a picture storage instruction, a video storage instruction, a detection report Generate instructions and test report store instructions.