Inspection device and method

Abstract

The invention relates to an inspection device and method, and the device comprises an intelligent moving assembly, an oil taking unit, and an oil gas detection unit. The oil taking unit and the oil gas detection unit are installed on the intelligent moving assembly, and oil in an oil taking opening is automatically taken out through the oil taking unit and then detected through the oil gas detection unit. The device has the beneficial effects that the device can be periodically started according to requirements so as to automatically detect the transformer after automatic oil extraction, the response is fast, the precision is high, and the device has the function of unmanned, remote and rapid transformer fault confirmation; manual on-site oil extraction is not needed, the extracted oil does not need to be brought back to a base station for detection, and the safety and the working efficiency of workers are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil sample detection, in particular to a patrol inspection device and method. Background Art

[0002] At present, oil chromatography monitoring is still the main technical means to judge the ultra-high voltage transformer. The traditional method is usually to collect and test oil samples of the transformer manually. Most oil sampling environments are in high-risk production operation areas. Workers usually need multiple protective measures to carry out their work, and the safety process is also cumbersome. Therefore, there are at least some defects such as inconvenient inspection, non-standard manual sampling operations, high labor intensity, and low work efficiency. Summary of the Invention

[0003] The present invention aims to solve the technical problems existing in the prior art and provides an inspection device and method.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: The first aspect of the present invention protects an inspection device, comprising an intelligent mobile component, an oil extraction unit, and an oil and gas detection unit; The oil extraction unit and the oil and gas detection unit are installed on the intelligent mobile component. The oil extraction unit automatically extracts the oil from the oil extraction port and then detects it through the oil and gas detection unit.

[0005] As a further technical solution, the oil extraction unit includes a robotic arm, a first housing, a machine vision device, an oil receiving pipe, and a calibration device; One end of the robotic arm is mounted on the intelligent mobile component, and the other end of the robotic arm is mounted on the first housing; The machine vision device, the oil receiving pipe and the calibration device are installed in the first shell, and the visual positioning of the oil extraction port is achieved through the machine vision device; the oil extraction port is connected through the oil receiving pipe; and the oil extraction position of the oil receiving pipe is calibrated by the calibration device.

[0006] As a further technical solution, the oil extraction unit further includes a driving member installed in the first housing, and the opening and closing of the oil extraction port are controlled by the driving member.

[0007] As a further technical solution, the calibration device includes a floating mechanism and a calibration connector; One end of the floating mechanism is fixed to the inner wall of the first shell, and the other end of the floating mechanism is connected to the oil receiving pipe through the calibration connector, so that the position of the oil receiving pipe is calibrated by the floating mechanism.

[0008] As a further technical solution, the calibration device further includes a first proximity switch and a second proximity switch; The first proximity switch and the second proximity switch are installed at the same end of the calibration connector, and the first proximity switch is located on a side close to the oil extraction port.

[0009] As a further technical solution, the oil and gas detection unit includes a spectrum detection unit and a chromatography detection unit; The spectrum detection unit and the chromatography detection unit are both connected to the oil storage unit on the intelligent mobile component through pipelines.

[0010] As a further technical solution, the intelligent mobile assembly includes a second housing, a mobile chassis, and a navigation and communication unit; The second housing is mounted on the upper portion of the mobile chassis and is adjacent to the oil storage unit; The navigation communication unit is installed on a side of the second shell close to the oil storage unit, the spectral detection unit and the chromatographic detection unit are both installed in the second shell, and the oil extraction unit stores the oil extracted from the oil outlet in the oil storage unit and detects it through the spectral detection unit and the chromatographic detection unit.

[0011] As a further technical solution, it also includes a support frame used in conjunction with the oil extraction unit; a valve is installed on the support frame, and the oil outlet on the valve is connected to the oil inlet on the oil extraction unit, so that the oil from the oil outlet pipe is discharged to the oil extraction unit after passing through the valve.

[0012] As a further technical solution, a main control unit is further installed in the second housing; The main control unit is signal-connected to the intelligent mobile component, the oil extraction unit, and the oil and gas detection unit.

[0013] A second aspect of the present invention provides a method for operating an inspection device as described in the first aspect, comprising the following steps: S1. An external device sends a work instruction to the intelligent mobile component, and the intelligent mobile component moves to the transformer oil extraction site after receiving the instruction; S2, the oil extraction unit first performs visual positioning, then automatically aligns with the oil extraction port and starts to extract oil after correcting the position deviation; S3. The oil and gas detection unit detects the oil taken out in step S2.

[0014] The beneficial effects of the present invention are: 1. The device of the present invention can be started regularly according to demand to automatically extract oil from the transformer and then automatically detect it. It has a fast response and high accuracy, and has the function of unmanned, remote, and rapid confirmation of transformer faults. There is no need for manual on-site oil extraction, nor is there any need to bring the extracted oil back to the base station for testing, which improves worker safety and work efficiency. 2. The method of the present invention is simple, fast and efficient. After visual positioning, the oil extraction port is aligned and the position is corrected before oil extraction. This avoids oil leakage while ensuring accurate oil extraction and facilitates later detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a patrol inspection device according to the present invention, in which the device is not connected to oil and the first housing is not installed; Figure 2 It is a structural schematic diagram of the support frame of the present invention; Figure 3 This is a partial structural diagram of the oil extraction unit in the state of being connected to the valve when extracting oil; Figure 4 for Figure 1 The schematic diagram of the three-dimensional structure after removing the mobile chassis in the figure; Figure 5 for Figure 4 A schematic diagram of part of the structure from another perspective; Figure 6 for Figure 4 Schematic diagram of part of the structure when viewed from above; Figure 7 This is a schematic diagram of the three-dimensional structure of the oil extraction unit without the mechanical arm; Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure after removing part of the first shell.

[0016] In the accompanying drawings, the components represented by the reference numerals are as follows: Smart mobile component 1; The second housing 11, the first accommodating area 111, the first partition 111a, the second partition 111b, the second accommodating area 112, and the third accommodating area 113; Mobile chassis 12, navigation and communication unit 13, cabinet door 14, control panel 15, heat exhaust component 16; Oil extraction unit 2; Robotic arm 21, first housing 22, robot arm connector 221, machine vision device 23; Oil connecting pipe 24, floating guide sleeve 241, oil pipe joint 242; Calibration device 25, floating mechanism 251, calibration connector 252, 7-shaped connector plate 252a, L-shaped connector plate 252b, connecting member 252c, first proximity switch 253, second proximity switch 254, driving member 26, mounting plate 27; Oil and gas detection unit 3, spectrum detection unit 31, chromatographic detection unit 32; Oil storage unit 4, support frame 5, valve 51, standard gas cylinder 6, oil circuit unit 7, main control unit 8. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0018] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0019] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art will recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0020] Example 1 See Figure 1 A patrol inspection device includes an intelligent mobile component 1, an oil extraction unit 2, and an oil and gas detection unit 3; the oil extraction unit 2 and the oil and gas detection unit 3 are installed on the intelligent mobile component 1, and the oil extraction unit 2 automatically extracts the oil from the oil extraction port and then detects it through the oil and gas detection unit 3.

[0021] It should be noted that the intelligent mobile component 1 moves to the oil collection site according to instructions to collect oil, and returns to the designated location according to instructions after collection is completed. For example, the intelligent mobile component 1 is an inspection robot. That is, the intelligent mobile component 1 can receive external instructions to move from a base station to an oil collection point (such as a transformer). The oil collection unit 2 on the intelligent mobile component 1 then collects an oil sample from the transformer. The oil sample is then tested by the oil and gas detection unit 3, and the test results can be remotely transmitted to the base station. For example, the oil sample can be tested for alkanes, hydrogen, carbon oxides, nitrogen, oxygen, etc., thereby reducing worker risks, improving work efficiency, and quickly confirming transformer faults.

[0022] The structure of this embodiment can be immediately retested on site.

[0023] See Figure 1 、 Figure 3 、 Figure 7 、 Figure 8 In the specific implementation process, the oil extraction unit 2 includes a robotic arm 21, a first shell 22, a machine vision device 23, an oil receiving pipe 24, and a calibration device 25; one end of the robotic arm 21 is installed on the intelligent mobile component 1, and the other end of the robotic arm 21 is installed with the first shell 22; the machine vision device 23, the oil receiving pipe 24, and the calibration device 25 are installed in the first shell 22, and the visual positioning of the oil extraction port is achieved through the machine vision device 23; the oil extraction port is connected through the oil receiving pipe 24; and the oil extraction position of the oil receiving pipe 24 is calibrated by the calibration device 25.

[0024] For example, the machine vision device 23 and the calibration device 25 are both mounted on the inner wall of the first housing 22, and the oil receiving pipe 24 is mounted on the calibration device 25. The calibration device 25 compensates for positional deviations of the oil receiving pipe 24, ensuring precise insertion of the oil receiving pipe 24 into the oil outlet, thereby improving both efficiency and accuracy. In other words, the intelligent mobile component 1, combined with the machine vision device 23, achieves precise positioning of the oil outlet and automatically avoids obstacles while planning a path.

[0025] For example, the robotic arm 21 is a six-axis robotic arm 21 that can carry a load of 5 kg and can be combined with the machine vision device 23 to achieve micron-level positioning.

[0026] For example, the machine vision device 23 converts the captured target into an image signal and transmits it to an image processing system. The system then analyzes and processes the image, ultimately outputting a result and guiding the movement of the robotic arm 21. For example, the machine vision device 23 includes an optical imaging system, an image acquisition and transmission module, an image processing and analysis system, a stage, a motion control module, etc.

[0027] For example, the oil receiving pipe 24 is used to lead out the oil from the oil outlet end at the oil taking point.

[0028] For example, the robotic arm 21 is connected to the first housing 22 via a robotic arm connector 221. When the structure inside the first housing 22 needs to be replaced or inspected, the robotic arm 21 can be separated from the robotic arm 21 via the robotic arm connector 221.

[0029] See Figure 8 In a specific implementation process, the oil extraction unit 2 further includes a driving member 26 installed in the first shell 22, and the opening and closing of the oil extraction port are controlled by the driving member 26.

[0030] For example, the driving member 26 is a valve 51 motor, which controls the opening and closing of the oil outlet at the oil taking point by forward and reverse rotation of the valve 51 motor.

[0031] See Figure 7 、 Figure 8 In the specific implementation process, the calibration device 25 includes a floating mechanism 251 and a calibration connector 252; one end of the floating mechanism 251 is fixed to the inner wall of the first shell 22, and the other end of the floating mechanism 251 is connected to the oil receiving pipe 24 through the calibration connector 252, and the position of the oil receiving pipe 24 is calibrated by the floating mechanism 251.

[0032] For example, the machine vision device 23 , the oil receiving pipe 24 , and the floating mechanism 251 are arranged in the first shell 22 from top to bottom.

[0033] For example, the floating mechanism 251 is an elastic floating mechanism 251 to achieve flexible displacement or angle supplementation within a certain range.

[0034] For example, the calibration connector 252 includes a 7-shaped connecting plate 252a and an L-shaped connecting plate 252b; the vertical side of the 7-shaped connecting plate 252a is connected to the floating mechanism 251, and the horizontal side of the 7-shaped connecting plate 252a is connected to the horizontal side of the L-shaped connecting plate 252b; a connecting piece 252c is provided on the inner side of the vertical side of the L-shaped connecting plate 252b, and the connecting piece 252c is provided with an oil hole (not numbered in the figure), and the oil hole is coaxial with the through hole on the vertical side of the L-shaped connecting plate 252b; the oil receiving pipe 24 is installed on the connecting piece 252c.

[0035] For example, the 7-shaped connecting plate 252a and the L-shaped connecting plate 252b, the 7-shaped connecting plate 252a and the floating mechanism 251, the floating mechanism 251 and the first shell 22, and the L-shaped connecting plate 252B and the oil receiving pipe 24 are all fixed by screws.

[0036] See Figure 7 、 Figure 8 In the specific implementation process, the calibration device 25 also includes a first proximity switch 253 and a second proximity switch 254; the first proximity switch 253 and the second proximity switch 254 are installed at the same end of the calibration connector 252, and the first proximity switch 253 is located on the side close to the oil extraction port.

[0037] For example, the first proximity switch 253 and the second proximity switch 254 are both installed on the inner side of the vertical side of the 7-type connecting plate 252a and opposite to the floating mechanism 251, that is, the positions of the first proximity switch 253 and the second proximity switch 254 can be controlled by the floating mechanism 251.

[0038] It should be noted that the first proximity switch 253 is used to determine whether the oil receiving pipe 24 is fully inserted into the oil outlet, and the second proximity switch 254 is used to identify the open / close state of the oil outlet valve 51. For example, the first proximity switch 253 is the access switch, and the second proximity switch 254 is the valve 51 open / close state.

[0039] The calibration device 25 also includes a mounting plate 27. The first and second proximity switches 253 and 254 are secured to the inner side of the vertical edge of the 7-shaped connecting plate 252a via the mounting plate 27, opposite the floating mechanism 251. In other words, the floating mechanism 251 controls the positions of the first and second proximity switches 253 and 254. It should be noted that the mounting plate 27 has mounting holes, one for each of the first and second proximity switches 253 and 254, allowing the first and second proximity switches 253 and 254 to pass through their corresponding mounting holes (not shown). For example, the two mounting holes may be parallel.

[0040] See Figure 4-Figure 6 In the specific implementation process, the oil and gas detection unit 3 includes a spectrum detection unit 31 and a chromatography detection unit 32; the spectrum detection unit 31 and the chromatography detection unit 32 are both connected to the oil storage unit 4 on the intelligent mobile component 1 through a pipeline.

[0041] It should be noted that the spectral detection unit 31 analyzes aging products, contaminants, or fault-signaling substances in the transformer oil by measuring its absorption, emission, or scattering properties of light of different wavelengths. For example, in this embodiment, the spectral detection unit 31 can detect the concentration of relevant gases in the oil sample using laser photoacoustic spectroscopy and laser absorption spectroscopy. The chromatographic detection unit 32 determines the fault type by separating the gas components dissolved in the transformer oil. For example, the chromatographic detection unit 32 can detect the concentration of relevant gases in the oil sample using gas chromatography. It should be noted that the gases detected include alkanes, hydrogen, carbon oxides, nitrogen, oxygen, and the like.

[0042] This embodiment demonstrates unmanned testing at the transformer site. When retesting is necessary, it can be re-measured on the spot. This demonstrates fast response, high accuracy, and comprehensive component analysis, enabling rapid identification of transformer faults and improving safety. For example, laser photoacoustic spectroscopy, laser absorption spectroscopy, and chromatographic detection can be simultaneously employed, shortening the time required to detect multiple components (e.g., nine) to 30 minutes, achieving high efficiency.

[0043] The detection accuracy for acetylene can reach 0.05µL / L, the detection accuracy for methane can reach 0.1µL / L, the detection accuracy for ethane and ethylene can reach 0.3µL / L, the detection accuracy for hydrogen can reach 2µL / L, and the detection accuracy for nitrogen and oxygen can reach 5%RD.

[0044] See Figure 1 In the specific implementation process, the intelligent mobile component 1 includes a second shell 11, a mobile chassis 12, and a navigation and communication unit 13; the second shell 11 is installed on the upper part of the mobile chassis 12 and is adjacent to the oil storage unit 4; the navigation and communication unit 13 is installed on the side of the second shell 11 close to the oil storage unit 4, the spectrum detection unit 31 and the chromatography detection unit 32 are both installed in the second shell 11, and the oil extraction unit 2 stores the oil extracted from the oil outlet into the oil storage unit 4, and detects it through the spectrum detection unit 31 and the chromatography detection unit 32.

[0045] For example, the mobile chassis 12 is an actuator that drives the robotic arm 21 to move. For example, the mobile chassis 12 includes a chassis frame, a drive unit (including a drive motor, a transmission mechanism), a motion actuator (for example: a wheeled structure, a tracked structure, a leg-foot structure), a drive controller, a sensor system (for example: a positioning and navigation sensor, an environmental perception sensor, a power supply system), etc.

[0046] For example, the navigation and communication unit 13 is the core module for realizing autonomous movement and data interaction of the device, including GPS positioning, laser SLAM navigation, laser radar, visual camera, tilt sensor, ultrasonic sensor, robot operating system, etc.

[0047] See Figure 1 、 Figure 4 、 Figure 5 For example, the second housing 11 is a hollow box structure with doors 14 on the rear, left, and right sides, making it easy to retrieve items and view test data. Furthermore, to dissipate heat, the doors 14 are equipped with heat dissipation components 16, such as fans. Correspondingly, the doors 14 are provided with heat dissipation holes for dissipating heat from the second housing 11.

[0048] See Figure 2 、 Figure 3 In the specific implementation process, the present invention also includes a support frame 5 used in conjunction with the oil extraction unit 2; a valve 51 is installed on the support frame 5, and the oil outlet on the valve 51 is connected to the oil inlet on the oil extraction unit 2, so that the oil from the oil outlet pipe is discharged to the oil extraction unit 2 after passing through the valve 51.

[0049] More specifically, the valve 51 is in communication with the oil receiving pipe 24. Furthermore, the oil receiving pipe 24 includes a floating guide sleeve 241 and an oil pipe joint 242. The floating guide sleeve 241 and the oil pipe joint 242 are respectively mounted at both ends of the connecting member 252c. The floating guide sleeve 241 and the connecting member 252c are coaxially arranged, and oil at the oil outlet at the oil extraction point is sequentially introduced into the connecting member 252c and the oil pipe joint 242 via the floating guide sleeve 241.

[0050] It should be noted that the oil outlet of the oil pipe joint 242 is connected to the oil inlet of the oil storage unit 4 through a pipeline. For example, the oil storage unit 4 is an oil storage container tank.

[0051] During implementation, the second housing 11 and the oil storage unit 4 are arranged side by side along the length of the mobile chassis 12. Furthermore, the oil storage unit 4 is arranged in front of the second housing 11, so that after the front end of the device takes oil, the rear end can be tested, which is reasonable in structure and easy to use.

[0052] In a specific implementation, the device further includes a charging unit (not shown) mounted on the lower portion of the mobile chassis 12, through which the smart mobile component 1 is charged. The charging unit provides power to the power-consuming structures of the device.

[0053] For example, the charging unit 14 includes a battery pack, a battery management system, a charging interface, a connector, a charging controller, etc.

[0054] See Figure 4-Figure 6 In the specific implementation process, a calibration gas cylinder 6 is also installed in the second shell 11. The second shell 11 is divided into a first accommodating area 111, a second accommodating area 112, and a third accommodating area 113 along the length direction of the mobile chassis 12; the first accommodating area 111 is divided into a first partition 111a and a second partition 111b along the width direction of the mobile chassis 12; and at least two partitions (not numbered in the figure) are provided from bottom to top in the first partition 111a for placing the oil circuit unit 7 and the spectrum detection unit 31; the second partition 111b is used to place the chromatographic detection unit 32; the second accommodating area 112 is used to place the main control unit 8; and the third accommodating area 113 is used to place the calibration gas cylinder 6.

[0055] It should be noted that the oil in the oil storage unit 4 is processed by the oil circuit unit 7 before being placed in the spectral detection unit 31 and the chromatographic detection unit 32 for detection. Specifically, the oil circuit unit 7 eliminates mechanical impurities, bubbles, or temperature deviations in the transformer oil sample, ensuring that the sample entering the spectral detection unit 31 and the chromatographic detection unit 32 meets the requirements.

[0056] The main control unit 8 is a component that receives input signals, processes information, and issues control commands to coordinate the operation of associated devices, modules, or subsystems, ensuring stable operation according to preset logic or real-time requirements. For example, the main control unit 8 is signal-connected to the intelligent mobile component 1, the oil and gas detection unit 3, the charging unit, and the oil circuit unit 7, enabling coordinated scheduling of these components. For example, the main control unit 8 can receive data transmitted by the intelligent mobile component 1 and issue commands to the intelligent mobile component 1 (e.g., direction of travel, distance, whether to proceed, etc.). The main control unit 8 may include a processor, memory, and other components.

[0057] The main control unit 8 can control the usage process of the gas in the calibration gas cylinder 6.

[0058] For example, a control screen 15 is provided on the outside of the second housing 11 , which communicates with the main control unit 8 through a human-computer interaction system installed on the control screen 15 , displays data in the main control unit 8 in real time, and receives user instructions.

[0059] This embodiment integrates automatic oil extraction and automatic detection, and has high precision and high reliability. In addition, it can be on standby around the clock according to demand, ready to work at any time, and has a fast response speed.

[0060] In addition, the device can formulate plans as needed to adapt to different scenarios such as regular oil extraction and testing, high-frequency oil extraction and testing during the fault development stage, etc. Therefore, the device can be on standby around the clock and automatically perform testing work. Example 2 This embodiment provides an operating method of an inspection device, specifically using the device of Example 1 to detect oil samples at a transformer, and specifically includes the following steps: S1. An external device sends a work instruction to the intelligent mobile component 1, and the intelligent mobile component 1 moves to the transformer oil extraction site after receiving the instruction; S2, the oil extraction unit 2 first performs visual positioning, then automatically aligns with the oil extraction port and corrects the position deviation before starting to extract oil; S3. The oil and gas detection unit 3 detects the oil taken out in step S2.

[0061] In the above step S2, in more detail, the robotic arm 21 moves to the photographing location (i.e., the oil outlet of the transformer site), and uses the machine vision device 23 to perform 3D visual positioning on the insertion point of the oil receiving pipe 24; The floating guide sleeve 241 is then inserted into the valve 51 at the oil outlet, and the positional deviation is corrected by the floating mechanism 251 to achieve precise docking between the floating guide sleeve 241 and the oil outlet. At this point, the first proximity switch 253 determines that the floating guide sleeve 241 is fully engaged with the oil outlet. If docking is complete, the robotic arm 21 stops working. Finally, the driving member 26 is turned on, and the valve 51 at the oil extraction port is driven to open by the coupling connected to the driving member 26. At the same time, the second proximity switch 254 is fully opened by the valve 51, that is, the oil circuit connection is established. At this time, oil can be taken from the oil extraction point to the oil storage unit 4 of the present invention.

[0062] After the oil extraction is completed, the coupling rotates in the opposite direction to close the valve 51 at the oil extraction port until the second proximity switch 254 recognizes that the valve 51 is completely closed. Then the robotic arm 21 guides the oil extraction unit 2 to exit and return to the photo taking point before retracting the robotic arm 21.

[0063] In the above step S3, in more detail, the main control unit 8 opens the oil circuit unit 7 to process the oil from the oil storage unit 4, and then the processed oil is transported to the spectrum detection unit 31 and the chromatography detection unit 32 for detection, and displayed on the control screen 15.

[0064] In this embodiment, the intelligent mobile component moves to the transformer oil collection point by itself, eliminating the need for manual operation at the transformer, thereby improving safety. In addition, the oil sample after automatic detection can be tested on the intelligent mobile component, again eliminating the need for staff to operate on-site or transport the oil sample to a base station for subsequent testing, thereby saving time and enabling quick access to test results.

[0065] This operation method reduces the workload of maintenance personnel, improves work efficiency, avoids errors caused by manual operation, and reduces the safety risks of oil sampling and analysis in extreme situations, ensuring the safety of maintenance personnel. At the same time, it also reduces power outages and economic losses caused by false alarms from online monitoring equipment.

[0066] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0067] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0068] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A patrol inspection device, characterized in that: It includes an intelligent mobile component (1), an oil extraction unit (2), and an oil and gas detection unit (3); The oil extraction unit (2) and the oil and gas detection unit (3) are installed on the intelligent mobile component (1); the oil extraction unit (2) automatically extracts oil from the oil extraction port and then detects it through the oil and gas detection unit (3).

2. The inspection device according to claim 1, characterized in that: The oil extraction unit (2) comprises a mechanical arm (21), a first housing (22), a machine vision device (23), an oil receiving pipe (24), and a calibration device (25); One end of the mechanical arm (21) is mounted on the intelligent mobile component (1), and the other end of the mechanical arm (21) is mounted on the first housing (22); The machine vision device (23), the oil receiving pipe (24), and the calibration device (25) are installed in the first housing (22). The machine vision device (23) is used to realize visual positioning of the oil extraction port; the oil extraction port is connected via the oil receiving pipe (24); and the oil extraction position of the oil receiving pipe (24) is calibrated via the calibration device (25).

3. The inspection device according to claim 2, characterized in that: The oil extraction unit (2) further comprises a driving member (26) installed in the first housing (22), and the opening and closing of the oil extraction port are controlled by the driving member (26).

4. The inspection device according to claim 2, characterized in that: The calibration device (25) includes a floating mechanism (251) and a calibration connecting piece (252); One end of the floating mechanism (251) is fixed to the inner wall of the first shell (22), and the other end of the floating mechanism (251) is connected to the oil receiving pipe (24) via the calibration connector (252), so that the position of the oil receiving pipe (24) is calibrated via the floating mechanism (251).

5. The inspection device according to claim 4, characterized in that: The calibration device (25) further includes a first proximity switch (253) and a second proximity switch (254); The first proximity switch (253) and the second proximity switch (254) are installed at the same end of the calibration connector (252), and the first proximity switch (253) is located on a side close to the oil extraction port.

6. The inspection device according to claim 1, characterized in that: The oil and gas detection unit (3) includes a spectrum detection unit (31) and a chromatographic detection unit (32); The spectrum detection unit (31) and the chromatographic detection unit (32) are both connected to the oil storage unit (4) on the intelligent mobile component (1) through pipelines.

7. The inspection device according to claim 6, characterized in that: The intelligent mobile component (1) comprises a second housing (11), a mobile chassis (12), and a navigation communication unit (13); The second housing (11) is mounted on the upper portion of the mobile chassis (12) and is adjacent to the oil storage unit (4); The navigation communication unit (13) is installed on a side of the second shell (11) close to the oil storage unit (4); the spectrum detection unit (31) and the chromatographic detection unit (32) are both installed in the second shell (11); the oil extraction unit (2) stores the oil extracted from the oil outlet in the oil storage unit (4) and detects the oil through the spectrum detection unit (31) and the chromatographic detection unit (32).

8. The inspection device according to claim 1, characterized in that: It also includes a support frame (5) used in conjunction with the oil extraction unit (2); a valve (51) is installed on the support frame (5), and the oil outlet on the valve (51) is connected to the oil inlet on the oil extraction unit (2), so that the oil from the oil outlet pipe is discharged to the oil extraction unit (2) after passing through the valve (51).

9. The inspection device according to claim 8, characterized in that: A main control unit (8) is also installed in the second housing (11); The main control unit (8) is signal-connected to the intelligent mobile component (1), the oil extraction unit (2), and the oil and gas detection unit (3).

10. The method for operating a patrol inspection device according to any one of claims 1 to 9, characterized in that: The steps include: S1, an external device sends a work instruction to the intelligent mobile component (1), and the intelligent mobile component (1) moves to the transformer oil extraction site after receiving the instruction; S2, the oil extraction unit (2) first performs visual positioning, then automatically aligns with the oil extraction port and starts extracting oil after correcting the position deviation; S3, the oil and gas detection unit (3) detects the oil taken out in step S2.

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