Intelligent monitoring device for power system

Abstract

The invention relates to the field of electric power system monitoring, and discloses an intelligent monitoring device for an electric power system, which comprises a movable base, a telescopic mechanism and an infrared thermal imaging mechanism, and further comprises an unfolding mechanism arranged on the telescopic mechanism, the infrared thermal imaging mechanism is mounted on the unfolding mechanism, and when the telescopic mechanism extends in the vertical direction, the infrared thermal imaging mechanism is unfolded. The unfolding mechanism is unfolded towards the two sides of the movable base, and the infrared thermal imaging mechanism extends to the position above the cable for thermal imaging detection. According to the intelligent monitoring device for the electric power system, by arranging the unfolding mechanism, when a cable in a cable trench needs to be inspected, the unfolding mechanism is unfolded, and the unfolded unfolding mechanism drives the infrared thermal imaging mechanism to extend to the position above the cable for temperature monitoring, so that the monitoring blind area of an infrared thermal imager is reduced; when the cable with overhigh temperature appears in the cable trench, the infrared thermal imager can monitor the cable with abnormal temperature, thereby reducing the fire hazard in the cable trench.

Description

Technical Field

[0001] The present invention relates to the field of power system monitoring, and particularly to an intelligent monitoring device for a power system. Background Art

[0002] A power system is a unified whole composed of power generation, power supply (power transmission, transformation, and distribution), power consumption facilities, and secondary facilities such as regulation and control, relay protection, safety automation devices, metering devices, dispatching automation, and power communication required to ensure its normal operation; among them, in cities, in order to protect cable lines and ensure the safety and reliability of cables, cable trenches are usually dug on the ground to lay cables. There are a large number of cable lines laid in existing cable trenches. In order to prevent the cable lines in the cable trench from overheating due to damage and causing the cables in the cable trench to catch fire spontaneously, inspection robots are often used in the cable trench for inspection to avoid the occurrence of spontaneous combustion of the cable lines due to overheating, resulting in the burning of the cable lines and affecting normal power supply.

[0003] For example, a patent with the publication number CN111633662B and the publication date of October 15, 2024 discloses a cable trench inspection robot; the cable trench inspection robot includes a base deployment system and a camera lifting system arranged on the base deployment system; the base deployment system includes a bottom plate, a linear motion unit, a cantilever plate, a walking component, and a jacking component; the camera lifting system includes a travel block, a four-bar linkage imitation component, a support rod, and a camera component; this patent realizes wall-penetrating operation through the cable trench, thus avoiding many usage problems caused by the existence of firewalls, and then can efficiently complete the predetermined inspection tasks.

[0004] In order to lay more cables in the existing cable trench, multiple layers of cable trays arranged at intervals up and down are usually provided in the cable trench, and multiple cables are laid side by side on one cable tray, and multiple cables are arranged in parallel. At this time, when the inspection robot monitors the temperatures of the cables on multiple cable trays, in order to adapt to cable trays at different heights, it can be achieved by adjusting the height of the infrared thermal imager. However, there are multiple cables on each cable tray. At this time, when the infrared thermal imager monitors the temperature, it can only monitor several cables on the cable tray far from the wall, while the cables on the cable tray close to the wall are not easily photographed by the infrared thermal imager, resulting in a monitoring blind area. When the temperature of the cables close to the wall is too high, when the inspection robot conducts inspections, the infrared thermal imager cannot directly photograph all the cables. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent monitoring device for a power system to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An intelligent monitoring device for a power system, comprising a mobile base, a telescopic mechanism and an infrared thermal imaging mechanism. The telescopic mechanism is arranged on the mobile base, and further comprises a deployment mechanism arranged on the telescopic mechanism. The infrared thermal imaging mechanism is installed on the deployment mechanism. When the telescopic mechanism extends in the vertical direction, the deployment mechanism expands towards both sides of the mobile base, and the infrared thermal imaging mechanism extends above the cable for thermal imaging detection.

[0008] As described above, the telescopic mechanism includes an outer cylinder, an electric control telescopic unit and a plurality of inner cylinders. Both the outer cylinder and the plurality of inner cylinders are rectangular frame-shaped, and the outer cylinder and the plurality of inner cylinders are concentrically arranged and slidably connected to each other. The electric control telescopic unit is installed on the inner bottom surface of the outer cylinder, and the telescopic end of the electric control telescopic unit is connected to the innermost inner cylinder. The electric control telescopic unit is used to drive the plurality of inner cylinders to telescopically move on the outer cylinder.

[0009] As described above, adjusting sliding grooves are provided on both side walls of the inner cylinder symmetrically in the width direction. The deployment mechanism is arranged in the adjusting sliding grooves, and a position adjusting mechanism is further arranged in the adjusting sliding grooves. The position adjusting mechanism is used to adjust the position of the deployment mechanism in the adjusting sliding grooves.

[0010] As described above, the deployment mechanism includes a sliding seat and a deployment rod. The sliding seat is slidably installed in the adjusting sliding groove. The sliding seat is U-shaped and is connected to the position adjusting mechanism. A connecting rod is fixedly installed in the U-shaped notch of the sliding seat. The connecting rod radially penetrates through the deployment rod, and the deployment rod is rotationally connected to the connecting rod through a torsion spring. The infrared thermal imaging mechanism is installed at one end of the deployment rod away from the sliding seat. The deployment rod is a telescopic structure.

[0011] As described above, a protective groove is further provided at the bottom of the adjusting sliding groove, and the protective groove is used to accommodate the infrared thermal imaging mechanism.

[0012] As described above, the inside of the deployment rod is hollow. The deployment rod includes a fixed section rotationally connected to the sliding seat and a telescopic adjusting section. The infrared thermal imaging mechanism is rotationally installed at the end of the adjusting section away from the fixed section. An adjusting mechanism is further arranged on the sliding seat. When the deployment rod rotates on the sliding seat, the adjusting mechanism adjusts the shooting direction of the infrared thermal imaging mechanism so that the infrared thermal imaging mechanism is directly facing the cable below.

[0013] As described above, the adjusting mechanism includes a first bevel gear arranged on the connecting rod. The first bevel gear is coaxially arranged with the connecting rod. The first bevel gear is located inside the deployment rod. A second bevel gear that cooperates with the first bevel gear is arranged outside the first bevel gear. The second bevel gear is rotationally installed on the inner wall of the fixed section through a connecting member. A passive telescopic rod is installed at one end of the second bevel gear away from the sliding seat, and the end of the passive telescopic rod is connected to the infrared thermal imaging mechanism.

[0014] As described above, the connecting rod includes connecting sections on both sides and a moving section in the middle. The two connecting sections are respectively connected to both sides of the notch of the sliding seat. The moving section is slidably connected to both connecting sections. End faces of the two connecting sections close to the moving section are provided with moving chutes in the vertical direction. Moving sliders are arranged at both ends of the moving section. The moving sliders at both ends of the moving section are inserted into the moving chutes of the two connecting sections. The first helical gear is installed on the moving section. A tensioning mechanism is also installed on the sliding seat. The tensioning mechanism is used to adjust the sliding of the moving section along the moving chute to adjust the separation or engagement between the first helical gear and the second helical gear.

[0015] As described above, the tensioning mechanism includes an adjusting frame. The adjusting frame is connected to the bottom of the sliding seat through a frame body. A vertical sinking groove is provided on the adjusting frame. An adjusting sleeve is slidably installed in the vertical direction in the sinking groove. The adjusting sleeve is connected to the adjusting frame through an adjusting spring. The adjusting sleeve is fixedly connected to the moving section of the connecting rod. An adjusting rod is also slidably installed on the adjusting frame in the vertical direction. One end of the adjusting rod abuts against the bottom surface of the adjusting sleeve, and the other end of the adjusting rod passes through the adjusting frame; a trigger strip is installed on the inner wall of the invariant section; the trigger strip includes an adjusting section and a maintaining section. Both the adjusting section and the maintaining section are in an arc shape. The adjusting section and the maintaining section are eccentrically arranged. The arc center of the maintaining section coincides with the axis of the connecting section, while the arc center of the adjusting section is located below the axis of the connecting section.

[0016] As described above, a deflection motor is further provided on the moving base. The output shaft of the deflection motor is connected to the side wall of the outer cylinder. In the initial state, the outer cylinder is horizontally placed on the moving base. Based on the rotation of the deflection motor, the outer cylinder changes from the horizontally placed state to the vertically placed state.

[0017] The beneficial effects of the present invention are as follows: In the above technical solution, an intelligent monitoring device for a power system provided by the present invention, by setting an unfolding mechanism, when it is necessary to inspect the cables in the cable trench, the unfolding mechanism unfolds. After unfolding, the unfolding mechanism drives the infrared thermal imaging mechanism to extend above the cables for temperature monitoring, reducing the monitoring blind area of the infrared thermal imager. When there are cables with too high temperature in the cable trench, the infrared thermal imager can detect the cables with abnormal temperature, reducing the fire hazards in the cable trench. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the intelligent monitoring device for a power system provided by the embodiment of the present invention when it is unfolded;

[0020] Figure 2 Schematic front view of the intelligent monitoring device for power systems provided by the embodiments of the present invention;

[0021] Figure 3 Schematic diagram of the cooperation between the deployment mechanism and the adjustment chute provided by the embodiments of the present invention;

[0022] Figure 4 Schematic diagram of the cooperation between the deployment mechanism and the adjustment chute provided by another embodiment of the present invention;

[0023] Figure 5 Provided by another embodiment of the present invention Figure 4 Schematic cross-sectional view of A-A;

[0024] Figure 6 Provided by another embodiment of the present invention Figure 5 Schematic diagram of the cooperation between the first helical gear and the second helical gear from the perspective of B-B;

[0025] Figure 7 Schematic diagram of the connection between the connection section and the mobile end provided by another embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the deployment rod after deployment provided by another embodiment of the present invention;

[0027] Figure 9 Schematic diagram of the structure of the trigger strip on the deployment rod provided by another embodiment of the present invention;

[0028] Figure 10 Schematic diagram of the state of the intelligent monitoring device for power systems provided by the embodiments of the present invention when folded.

[0029] Explanation of reference numerals:

[0030] 1. Mobile base; 2. Telescopic mechanism; 21. Outer cylinder; 22. Electrically controlled telescopic unit; 23. Inner cylinder; 231. Adjustment chute; 232. Protection groove; 3. Infrared thermal imaging mechanism; 4. Deployment mechanism; 41. Sliding seat; 42. Deployment rod; 421. Fixed section; 422. Adjustment section; 43. Torsion spring; 5. Deflection motor; 6. Adjustment mechanism; 61. Connecting rod; 611. Connection section; 612. Moving section; 613. Moving chute; 614. Moving slider; 62. First helical gear; 63. Second helical gear; 64. Passive telescopic rod; 7. Tensioning mechanism; 71. Adjustment frame; 72. Sunk groove; 73. Adjustment sleeve; 74. Adjustment rod; 75. Adjustment spring; 8. Trigger strip; 81. Adjustment section; 82. Maintenance section. Detailed implementation manners

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the following will further introduce the present invention in detail in conjunction with the attached Figure 1-10 ,

[0032] In various embodiments of the present invention, for the convenience of description and understanding, the extending direction of the cable trench is referred to as the length direction, the direction perpendicular to the length direction on the horizontal plane is referred to as the width direction, and the direction of gravity is referred to as the vertical direction. That is, the length direction, the width direction, and the vertical direction constitute a three-dimensional rectangular coordinate system.

[0033] The embodiment of the present invention provides an intelligent monitoring device for a power system, including a moving base 1, a telescopic mechanism 2, and an infrared thermal imaging mechanism 3. The telescopic mechanism 2 is arranged on the moving base 1, and further includes a deployment mechanism 4 arranged on the telescopic mechanism 2. The infrared thermal imaging mechanism 3 is installed on the deployment mechanism 4. When the telescopic mechanism 2 extends along the vertical direction, the deployment mechanism 4 expands towards both sides of the moving base 1, and the infrared thermal imaging mechanism 3 extends above the cable for thermal imaging detection.

[0034] Specifically, the moving base 1 can be a moving trolley. The moving trolley can move in the cable trench (or underground pipe gallery, only the cable trench is described below for simplicity) along a set track, or can be controlled to move by means of remote control. The self-propelled trolley is a prior art, and its principle will not be elaborated here. The moving base 1 moves along the cable trench to inspect the cables laid in the cable trench. The telescopic mechanism 2 can be a hydraulic telescopic rod, an electric control telescopic rod or other telescopic structures. The deployment mechanism 4 is connected to the telescopic mechanism 2, and the infrared thermal imaging mechanism 3 for monitoring the cable temperature is installed on the deployment mechanism 4. The infrared thermal imaging mechanism 3 can be a common infrared thermal imager. Obviously, various other cable detection sensors can also be arranged on the deployment mechanism 4. In this embodiment, the telescopic mechanism 2 is arranged along the vertical direction. As the telescopic mechanism 2 expands and contracts, the telescopic mechanism 2 drives the infrared thermal imager to move in the vertical direction, facilitating the monitoring of cables at different heights. Among them, the existing cable trench is opened below the ground, and a plurality of cable brackets are arranged at intervals along the vertical direction on both side walls of the cable trench. Each cable bracket is laid with multiple cables, and the multiple cables are arranged in parallel along the width direction. When it is necessary to inspect the cables in the cable trench, the moving base 1 moves along the cable trench. At the same time, the telescopic mechanism 2 expands and contracts, driving the infrared thermal imaging mechanism 3 to move up and down to adjust the position of the infrared thermal imaging mechanism 3 to adapt to the thermal imaging detection of the cables on the cable brackets at different heights.

[0035] Obviously, since multiple parallel cables will be laid on each cable tray in the width direction, when the infrared thermal imaging mechanism 3 is monitoring, the cables close to the side walls of the cable trench are easily blocked by the cable trays far away from the side walls of the cable trench and above. The infrared thermal imaging mechanism 3 cannot photograph the blocked cables when performing thermal imaging detection. At this time, the infrared thermal imaging mechanism 3 has a detection blind spot. As the mobile base 1 passes by, if the temperature of the blocked cable is too high, the infrared thermal imaging mechanism 3 cannot photograph the blocked cable with abnormal temperature. The cable with abnormal temperature continues to work, which is prone to spontaneous combustion accidents and poses certain safety hazards.

[0036] In order to solve the above problems, an unfolding mechanism 4 is also provided on the telescopic mechanism 2, and the infrared thermal imaging mechanism 3 is installed on the unfolding mechanism 4. When the telescopic mechanism 2 is extended in the vertical direction, the unfolding mechanism 4 unfolds toward both sides of the mobile base 1, and the infrared thermal imaging mechanism 3 extends to the top of the cable for thermal imaging detection.

[0037] Specifically, the unfolding mechanism 4 can be selected as a telescopic structure such as a linear telescopic rod, an electric-controlled telescopic rod, etc. The infrared thermal imaging mechanism 3 is installed at the telescopic end of the unfolding mechanism 4 (the end away from the telescopic mechanism 2). When the telescopic mechanism 2 completes the extension in the vertical direction, the unfolding mechanism 4 begins to unfold, and the unfolding mechanism 4 carries the infrared thermal imaging mechanism 3 in the gap between the cable brackets. At this time, the infrared thermal imaging mechanism 3 performs thermal imaging detection on the cables on the cable bracket below, and as the unfolding mechanism 4 is extended, the infrared thermal imaging mechanism 3 moves along the width direction, and can perform thermal imaging detection on all cables laid on the cable bracket, avoiding missed shots, which would cause the cables in the cable trench to spontaneously combust due to excessive temperature.

[0038] Preferably, the telescopic mechanism 2 includes an outer cylinder 21, an electric control telescopic unit 22 and a plurality of inner cylinders 23. The outer cylinder 21 and the plurality of inner cylinders 23 are both rectangular frame-shaped. The outer cylinder 21 and the plurality of inner cylinders 23 are concentrically arranged and slidably connected to each other, thereby forming a telescopic structure sleeved in sequence. The electric control telescopic unit 22 is installed on the inner bottom surface of the outer cylinder 21. The telescopic end of the electric control telescopic unit 22 is connected to the innermost inner cylinder 23. In this way, the telescopic movement of the electric control telescopic unit 22 can drive the innermost inner cylinder 23 to rise, and then drive the plurality of inner cylinders 23 to telescopically move on the outer cylinder 21. Adjustment chutes 231 are provided on both side walls of the inner cylinder 23 symmetrically along the width direction. The adjustment chutes 231 are arranged vertically. A position adjustment mechanism is further provided in the adjustment chutes 231. The position adjustment mechanism is used to adjust the position of the unfolding mechanism 4 in the adjustment chutes 231. The unfolding mechanism 4 includes a sliding seat 41 and an unfolding rod 42. The sliding seat 41 is slidably installed in the adjustment chute 231. The sliding seat 41 is U-shaped. The bottom surface of the sliding seat 41 is connected to the position adjustment mechanism. A connecting rod 61 is fixedly installed in the U-shaped notch of the sliding seat 41. The connecting rod 61 radially penetrates through the unfolding rod 42. The unfolding rod 42 is rotationally connected to the connecting rod 61 through a torsion spring 43. The infrared thermal imaging mechanism 3 is installed at one end of the unfolding rod 42 away from the sliding seat 41. The unfolding rod 42 is a telescopic rod-shaped structure.

[0039] Specifically, in this embodiment, the number of inner cylinders 23 is set to three. It should be noted that the number of inner cylinders 23 is not constantly three and is determined based on the number of cable brackets in the vertical direction. Among them, the position adjustment mechanism includes a first electric control telescopic rod and a positioning lens. The first electric control telescopic rod is fixedly installed in the adjustment chute 231. The first electric control telescopic rod is arranged in the vertical direction. The telescopic end of the first electric control telescopic rod is connected to the bottom surface of the sliding seat 41. The positioning lens is also installed on the telescopic end of the first electric control telescopic rod. The shooting direction of the positioning lens is directly facing the side wall of the cable trench. The positioning lens is used to position the gap position between two adjacent cable brackets in the vertical direction. After the telescopic mechanism 2 is fully extended in the vertical direction, the torsion spring 43 releases the accumulated elastic potential energy, and the expansion rod 42 rotates on the sliding seat 41. The expansion rod 42 changes from the vertical placement state to the horizontal placement state. Subsequently, the first electric control telescopic rod starts to extend, pushing the sliding seat 41 and the expansion rod 42 to slide along the groove direction of the adjustment chute 231. At the same time, the positioning lens shoots the side wall of the cable trench. When the positioning lens locates the space between two adjacent cable brackets in the vertical direction, the first electric control telescopic rod stops extending. At this time, the expansion rod 42 is directly facing the space between two adjacent cable brackets, facilitating subsequent infrared temperature measurement detection. When the telescopic mechanism 2 is in the retracted state, multiple inner cylinders 23 are all received in the outer cylinder 21. At this time, the expansion rod 42 is received in the adjustment chute 231 on the side wall of the inner cylinder 23, and the sliding seat 41 is located at the lower end of the adjustment chute 231. At this time, the torsion spring 43 connecting the expansion rod 42 on the sliding seat 41 is in a deformed state, and the torsion spring 43 accumulates elastic potential energy. The expansion rod 42 can be selected as a second electric control telescopic rod;

[0040] After the mobile base 1 enters the cable trench, the electric control telescopic unit 22 drives a plurality of inner cylinders 23 to extend in the vertical direction. After the plurality of inner cylinders 23 are fully deployed, the adjustment sliding grooves 231 on the side walls of the plurality of inner cylinders 23 are exposed. The deployment rods 42 in the adjustment sliding grooves 231 are no longer restricted by the other inner cylinders 23 or the outer cylinder 21 on the outside. The torsion springs 43 connecting the deployment rods 42 release the accumulated elastic potential energy. The deployment rods 42 rotate on the sliding seats 41. One end of the deployment rod 42 away from the sliding seat 41 deflects towards the side wall of the cable trench. When the torsion springs 43 completely release the accumulated elastic potential energy, the deployment rods 42 are in a horizontal placement state. Subsequently, the first electric control telescopic rod extends upward. The first electric control telescopic rod drives the sliding seat 41 to move upward along the adjustment sliding groove 231. While the sliding seat 41 moves, the positioning lens synchronously takes pictures of the side wall of the cable trench. When the positioning lens locates the gap position between two adjacent cable brackets in the vertical direction, the first electric control telescopic rod stops extending. At this time, the deployment rod 42 extends, driving the infrared thermal imaging mechanism 3 to move towards the side wall of the cable trench. The infrared thermal imaging mechanism 3 enters the space between two adjacent cable brackets in the vertical direction and performs thermal imaging detection on the cables in the space, avoiding the situation of missed shooting, which may cause the cables in the cable trench to catch fire due to excessive temperature; after completing the shooting process of the cable trench, the deployment rod 42 contracts to the shortest state. Subsequently, the first electric control telescopic rod drives the sliding seat 41 to move to the lowermost position of the adjustment sliding groove 231. Finally, the electric control telescopic unit 22 contracts to drive the plurality of inner cylinders 23 to be received into the outer cylinder 21. As the inner cylinders 23 contract, the deployment rods 42 on the side walls of the inner cylinders 23 are squeezed by the ends of the outer cylinder 21 or the inner cylinders 23 below them. The deployment rods 42 rotate on the sliding seats 41 and are received into the adjustment sliding grooves 231, completing the storage of the deployment mechanism 4. Among them, when the telescopic mechanism 2 completes the extension operation, the center of gravity of the mobile base 1 shifts upward. To ensure the stability of the mobile base 1 during subsequent driving, a storage groove is also provided on the surface of the mobile base 1. A connecting rod support mechanism is arranged in the storage groove. The connecting rod support mechanism forms a triangular structure with the outer cylinder 21 and the mobile base 1, improving the stability of the trolley during driving. This is prior art, and its principle will not be elaborated further.

[0041] Obviously, in this embodiment, in the retracted state, the infrared emission end of the infrared thermal imaging mechanism 3 and other sensors face the inner wall of the inner cylinder 23 or the outer cylinder 21. When the infrared thermal imaging mechanism 3 is received and deployed multiple times, the infrared emission end of the infrared thermal imaging mechanism 3 repeatedly rubs against the inner wall of the outer cylinder 21 or the inner cylinder 23, which easily causes scratches or wear on the surface of the infrared thermal imaging optical elements, thereby affecting the transmission of any infrared radiation passing through them, ultimately resulting in blurred images or distorted temperature measurements, and affecting the accuracy of the monitoring results.

[0042] To solve this problem, in another embodiment of the present invention, a protective groove 232 is further formed in the adjustment chute 231, and the protective groove 232 is used to accommodate the infrared thermal imaging mechanism 3; the inside of the deployment rod 42 is hollow, and the deployment rod 42 includes a fixed section 421 rotatably connected to the sliding seat 41 and an adjustable section 422 that can be telescoped. The infrared thermal imaging mechanism 3 is rotatably installed at the end of the adjustable section 422 away from the fixed section 421. Among them, an adjustment mechanism 6 is further provided on the sliding seat 41. When the deployment rod 42 rotates on the sliding seat 41, the adjustment mechanism 6 adjusts the shooting direction of the infrared thermal imaging mechanism 3 so that the infrared thermal imaging mechanism 3 faces the cable below; the connecting rod 61 radially penetrates through the fixed section 421 of the deployment rod 42, and the adjustment mechanism 6 includes a first bevel gear 62 provided on the connecting rod 61. The first bevel gear 62 is coaxially arranged with the connecting rod 61. The first bevel gear 62 is located inside the deployment rod 42. A matching second bevel gear 63 is arranged outside the first bevel gear 62. The second bevel gear 63 is rotatably installed on the inner wall of the fixed section 421 through a connecting member. A passive telescopic rod 64 is installed at one end of the second bevel gear 63 away from the sliding seat 41, and the end of the passive telescopic rod 64 is connected to the infrared thermal imaging mechanism 3.

[0043] Specifically, in the initial state, the deployment rod 42 is stored in the adjustment chute 231, and the infrared thermal imaging mechanism 3 is located in the protection chute 232, that is, the infrared thermal imaging mechanism 3 is located on the side of the deployment rod 42 close to the inner cylinder 23. After the cable inspection in the cable trench is completed and the deployment mechanism 4 is stored, the inner wall of the inner cylinder 23 and the outer cylinder 21 cannot contact the infrared emission end of the infrared thermal imaging mechanism 3. Thus, the situation of scratching or abrasion on the surface of the infrared thermal imaging optical element is avoided, ensuring the accuracy of the monitoring data. When the mobile base 1 needs to conduct inspections in the cable trench, the electric control telescopic unit 22 drives multiple inner cylinders 23 to extend vertically. After the multiple inner cylinders 23 are fully deployed, the adjustment chutes 231 on the side walls of the multiple inner cylinders 23 are exposed. The deployment rod 42 in the adjustment chute 231 loses the restriction of the remaining inner cylinders 23 or the outer cylinder 21 on the outside. The torsion spring 43 connecting the deployment rod 42 releases the accumulated elastic potential energy. The deployment rod 42 rotates on the sliding seat 41. The end of the deployment rod 42 away from the sliding seat 41 deflects towards the side wall of the cable trench. The second helical gear 63 on the inner wall of the non-variable section 421 meshes with the first helical gear 62, and the second helical gear 63 rotates. As the second helical gear 63 rotates, under the action of the passive telescopic rod 64, the second helical gear 63 drives the infrared thermal imaging mechanism 3 to rotate at the end of the adjustment section 422 away from the non-variable section 421. When the torsion spring 43 completely releases the accumulated elastic potential energy, the deployment rod 42 is in a horizontal placement state. At this time, the shooting direction of the infrared thermal imaging mechanism 3 is set downward (obviously, in this embodiment, the deployment rod 42 rotates 90 degrees on the sliding seat 41, while the infrared thermal imaging mechanism 3 rotates 180 degrees on the adjustment section 422 of the deployment rod 42. Thus, the transmission ratio of the first helical gear 62 to the second helical gear 63 is 1:2. However, the transmission ratio of the first helical gear 62 to the second helical gear 63 is not constantly 1:2, and the selection of the transmission ratio of the first helical gear 62 to the second helical gear 63 is based on the actual situation). Subsequently, the first electric control telescopic rod extends upward. The first electric control telescopic rod drives the sliding seat 41 to move upward along the adjustment chute 231. While the sliding seat 41 moves, the positioning lens synchronously shoots the side wall of the cable trench. When the positioning lens locates the gap position between two adjacent cable brackets in the vertical direction, the first electric control telescopic rod stops extending. At this time, the deployment rod 42 extends, driving the infrared thermal imaging mechanism 3 to move towards the side wall of the cable trench. The infrared thermal imaging mechanism 3 enters the space between two adjacent cable brackets in the vertical direction and conducts thermal imaging detection on the cables in this space, avoiding the situation of missed shooting, which may lead to the spontaneous combustion of the cables in the cable trench due to excessive temperature.

[0044] Obviously, in this embodiment, when the torsion spring 43 releases the accumulated elastic potential energy, the unfolding rod 42 starts to rotate. At the same time, due to the rotation of the unfolding rod 42, the second helical gear 63 on the unfolding rod 42 meshes with the first helical gear 62, thereby driving the infrared thermal imaging mechanism 3 to rotate synchronously. That is, before the infrared thermal imaging mechanism 3 disengages from the protection groove 232, the infrared thermal imaging mechanism 3 has already started to deflect, which may cause interference.

[0045] To solve the above problems, preferably, the connecting rod 61 includes connecting sections 611 on both sides and a moving section 612 in the middle. The two connecting sections 611 are respectively connected to the two side plates of the notch of the sliding seat 41. The moving section 612 is slidably connected to both connecting sections 611. Moving chutes 613 are formed in the end faces of the two connecting sections 611 close to the moving section 612 in the vertical direction. Moving sliders 614 are provided at both ends of the moving section 612. The moving sliders 614 at both ends of the moving section 612 are respectively inserted into the moving chutes 613 of the two connecting sections 611. The first helical gear 62 is installed on the moving section 612. A tensioning mechanism 7 is also installed on the sliding seat 41. The tensioning mechanism 7 is used to adjust the sliding of the moving section 612 along the moving chute 613 to adjust the separation or meshing of the first helical gear 62 and the second helical gear 63. The tensioning mechanism 7 includes an adjusting frame 71. The adjusting frame 71 is connected to the bottom of the sliding seat 41 through a frame body. A vertical sinking groove 72 is provided on the adjusting frame 71. An adjusting sleeve 73 is slidably installed in the vertical direction in the sinking groove 72. The adjusting sleeve 73 is connected to the adjusting frame 71 through an adjusting spring 75. The adjusting sleeve 73 is fixedly connected to the moving section 612 of the connecting rod 61. An adjusting rod 74 is also slidably installed in the vertical direction on the adjusting frame 71. One end of the adjusting rod 74 abuts against the bottom surface of the adjusting sleeve 73, and the other end of the adjusting rod 74 passes through the adjusting frame 71. A trigger strip 8 is installed on the inner wall of the invariant section 421. The trigger strip 8 includes an adjusting section 81 and a maintaining section 82. Both the adjusting section 81 and the maintaining section 82 are arc-shaped strips. The adjusting section 81 and the maintaining section 82 are eccentrically arranged. The arc center of the maintaining section 82 coincides with the axis of the connecting section 611, while the arc center of the adjusting section 81 is located below the axis of the connecting section 611.

[0046] Specifically, in the initial state, the moving section 612 of the connecting rod 61 is located below the two connecting sections 611. At this time, the first helical gear 62 and the second helical gear 63 on the moving section 612 are in a separated state. When the moving base 1 needs to conduct inspections in the cable trench, the electric control telescopic unit 22 drives multiple inner cylinders 23 to extend vertically. After the multiple inner cylinders 23 are fully deployed, the adjustment sliding grooves 231 on the side walls of the multiple inner cylinders 23 are exposed. The expansion rods 42 in the adjustment sliding grooves 231 are no longer restricted by the other inner cylinders 23 or the outer cylinder 21 on the outside. The torsion springs 43 connecting the expansion rods 42 release the accumulated elastic potential energy. The expansion rods 42 rotate on the sliding seats 41. One end of the expansion rod 42 away from the sliding seat 41 deflects towards the side wall of the cable trench. At this time, since the first helical gear 62 and the second helical gear 63 are in a separated state, as the expansion rod 42 rotates, the second helical gear 63 does not mesh with the first helical gear 62, so the second helical gear 63 does not rotate. At this time, the infrared thermal imaging mechanism 3 still maintains its initial state. At the same time, as the expansion rod 42 rotates, the trigger strip 8 on the expansion rod 42 rotates synchronously. The adjustment section 81 of the trigger strip 8 first contacts the adjusting rod 74. Due to the eccentric setting of the adjustment section 81, as the expansion rod 42 continues to rotate, the adjustment section 81 squeezes the adjusting rod 74 upward. The adjusting rod 74 moves towards the inside of the adjusting frame 71 under the squeezing of the adjustment section 81. The adjusting rod 74 pushes the adjusting sleeve 73 upward. The adjusting sleeve 73 drives the moving section 612 and the first helical gear 62 upward. The first helical gear 62 gradually approaches the second helical gear 63. When the infrared thermal imaging mechanism 3 disengages from the adjustment sliding groove 231, the first helical gear 62 meshes with the second helical gear 63. The maintaining section 82 of the trigger strip 8 abuts against the adjusting rod 74. Since the arc center of the maintaining section 82 coincides with the axis of the connecting section 611, as the expansion rod 42 rotates, the adjusting rod 74 will not continue to push the adjusting sleeve 73 upward. Moreover, since the first helical gear 62 and the second helical gear 63 are in a meshed state, as the expansion rod 42 rotates, the second helical gear 63 meshes with the first helical gear 62, and the second helical gear 63 rotates. As the second helical gear 63 rotates, under the action of the passive telescopic rod 64, the second helical gear 63 drives the infrared thermal imaging mechanism 3 to rotate at the end of the adjustment section 422 away from the fixed section 421 until the shooting direction of the infrared thermal imaging mechanism 3 is set downward. Therefore, only one protective groove 232 adapted to the infrared thermal imaging mechanism 3 needs to be opened.

[0047] It should also be noted that in a preferred embodiment, in order to improve the passability of the mobile base 1 in the cable trench, the height of the mobile base 1 should be relatively low. Therefore, a deflection motor 5 is further provided on the mobile base 1. The output shaft of the deflection motor 5 is connected to the side wall of the outer cylinder 21. In the initial state, the outer cylinder 21 is horizontally placed on the mobile base 1. When thermal imaging monitoring is required, the deflection motor 5 drives the outer cylinder 21 to rotate, so that the outer cylinder 21 changes from the horizontal placement state to the vertical state.

[0048] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent monitoring device for an electric power system, comprising a mobile base (1), a telescopic mechanism (2) and an infrared thermal imaging mechanism (3), wherein the telescopic mechanism (2) is arranged on the mobile base (1), and is characterized in that: Also includes: An unfolding mechanism (4) is arranged on the telescopic mechanism (2), and an infrared thermal imaging mechanism (3) is installed on the unfolding mechanism (4). When the telescopic mechanism (2) is extended in the vertical direction, the unfolding mechanism (4) unfolds toward both sides of the movable base (1), and the infrared thermal imaging mechanism (3) extends above the cable to perform thermal imaging detection.

2. An intelligent monitoring device for a power system according to claim 1, characterized in that: The telescopic mechanism (2) comprises an outer cylinder (21), an electric telescopic unit (22) and a plurality of inner cylinders (23); the outer cylinder (21) and the plurality of inner cylinders (23) are both rectangular frame-shaped; the outer cylinder (21) and the plurality of inner cylinders (23) are concentrically arranged and slidably connected to each other; the electric telescopic unit (22) is mounted on the inner bottom surface of the outer cylinder (21); the telescopic end of the electric telescopic unit (22) is connected to the innermost inner cylinder (23); and the electric telescopic unit (22) is used to drive the plurality of inner cylinders (23) to telescope on the outer cylinder (21).

3. An intelligent monitoring device for a power system according to claim 2, characterized in that: The inner cylinder (23) is provided with adjustment slots (231) on both side walls symmetrically disposed along the width direction, the unfolding mechanism (4) is disposed in the adjustment slots (231), and a position adjustment mechanism is also disposed in the adjustment slots (231), the position adjustment mechanism being used to adjust the position of the unfolding mechanism (4) in the adjustment slots (231).

4. The intelligent monitoring device for a power system according to claim 3, characterized in that: The unfolding mechanism (4) comprises a sliding seat (41) and an unfolding rod (42); the sliding seat (41) is slidably mounted in an adjusting slide groove (231); the sliding seat (41) is U-shaped; the sliding seat (41) is connected to the position adjusting mechanism; a connecting rod (61) is fixedly mounted in the U-shaped notch of the sliding seat (41); the connecting rod (61) radially penetrates the unfolding rod (42); the unfolding rod (42) is rotatably connected to the connecting rod (61) via a torsion spring (43); the infrared thermal imaging mechanism (3) is mounted at one end of the unfolding rod (42) away from the sliding seat (41); the unfolding rod (42) is a telescopic structure.

5. The intelligent monitoring device for a power system according to claim 3, characterized in that: The bottom of the adjusting slide groove (231) is also provided with a protection groove (232), and the protection groove (232) is used to accommodate the infrared thermal imaging mechanism (3).

6. The intelligent monitoring device for a power system according to claim 5, characterized in that: The deployment rod (42) is hollow inside and comprises a fixed section (421) and a telescopic adjustment section (422) which are rotatably connected to the sliding seat (41). The infrared thermal imaging mechanism (3) is rotatably mounted on the end of the adjustment section (422) away from the fixed section (421). The sliding seat (41) is also provided with an adjustment mechanism (6). When the deployment rod (42) rotates on the sliding seat (41), the adjustment mechanism (6) adjusts the shooting direction of the infrared thermal imaging mechanism (3) so that the infrared thermal imaging mechanism (3) faces the cable below.

7. An intelligent monitoring device for a power system according to claim 6, characterized in that: The adjustment mechanism (6) comprises a first bevel gear (62) arranged on a connecting rod (61), the first bevel gear (62) and the connecting rod (61) being coaxially arranged, the first bevel gear (62) being located inside the deployment rod (42), a second bevel gear (63) matching with the first bevel gear (62) being arranged outside the first bevel gear (62), the second bevel gear (63) being rotatably mounted on the inner wall of the fixed section (421) through a connecting piece, a passive telescopic rod (64) being mounted on one end of the second bevel gear (63) away from the sliding seat (41), and the end of the passive telescopic rod (64) being connected to the infrared thermal imaging mechanism (3).

8. An intelligent monitoring device for a power system according to claim 7, characterized in that: The connecting rod (61) comprises connecting sections (611) on both sides and a moving section (612) in the middle. The two connecting sections (611) are respectively connected to the two sides of the notch of the sliding seat (41). The moving section (612) is slidably connected to the two connecting sections (611). The end surfaces of the two connecting sections (611) close to the moving section (612) are provided with moving slide grooves (613) in the vertical direction. Both ends of the moving section (612) are provided with moving sliders (614). The moving sliders (614) at both ends of the moving section (612) are inserted into the moving slide grooves (613) of the two connecting sections (611). The first bevel gear (62) is installed on the moving section (612). The sliding seat (41) is also installed with a tensioning mechanism (7). The tensioning mechanism (7) is used to adjust the moving section (612) to slide along the moving slide groove (613) and adjust the first bevel gear (62) and the second bevel gear (63) to separate or mesh with each other.

9. The intelligent monitoring device for a power system according to claim 8, characterized in that: The tensioning mechanism (7) comprises an adjusting frame (71), the adjusting frame (71) being connected to the bottom of the sliding seat (41) through a frame body, a vertical sinking groove (72) being provided on the adjusting frame (71), an adjusting sleeve (73) being slidably mounted in the sinking groove (72) in a vertical direction, the adjusting sleeve (73) being connected to the adjusting frame (71) through an adjusting spring (75), the adjusting sleeve (73) being fixedly connected to the moving section (612) of the connecting rod (61), an adjusting rod (74) being slidably mounted on the adjusting frame (71) in a vertical direction, the adjusting rod (74) One end of the adjusting rod (74) abuts against the bottom surface of the adjusting sleeve (73), and the other end of the adjusting rod (74) passes through the adjusting frame (71). A trigger bar (8) is installed on the inner wall of the constant section (421). The trigger bar (8) comprises an adjusting section (81) and a maintaining section (82). Both the adjusting section (81) and the maintaining section (82) are in the shape of arc strips. The adjusting section (81) and the maintaining section (82) are eccentrically arranged. The arc center of the maintaining section (82) coincides with the axis of the connecting section (611), while the arc center of the adjusting section (81) is located below the axis of the connecting section (611).

10. An intelligent monitoring device for a power system according to claim 9, characterized in that: A deflection motor (5) is also provided on the mobile base (1), and an output shaft of the deflection motor (5) is connected to a side wall of the outer cylinder (21). In an initial state, the outer cylinder (21) is located on the mobile base (1) in a horizontal placement state. Based on the rotation of the deflection motor (5), the outer cylinder (21) changes from a horizontal placement state to a vertical placement state.

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