Detection and early warning device for preventing external damage of power transmission line based on millimeter wave radar

Abstract

The invention relates to the technical field of power transmission line monitoring, in particular to a millimeter wave radar-based power transmission line external damage prevention detection and early warning device, which comprises a spliced protection mechanism, a sealed monitoring mechanism and an inner shell monitoring mechanism, and is characterized in that the sealed monitoring mechanism is mounted at the bottom end of the spliced protection mechanism; a sealing connection mechanism is installed on the inner side of the spliced protection mechanism, and an inner shell monitoring mechanism is installed on the inner side of the sealing connection mechanism. According to the invention, through multi-point monitoring of the power transmission line, detection and early warning can be carried out on damage and faults of the line in time, damage expansion is avoided, installation and sealing monitoring are facilitated, and stability of use functions is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line monitoring, and in particular to a power transmission line anti-external damage detection and early warning device based on millimeter wave radar. Background Art

[0002] Transmission is an important component of the power grid. Due to the large span of transmission lines and their susceptibility to damage by natural environment and human factors, transmission line monitoring has gradually become an important part of the construction of the transmission link. It is also an important technical means to realize the maintenance and management of the operation status of transmission lines and improve the lean management level of production operations. With the increasing complexity of the power grid structure, in order to further improve the quality of electric energy, meet the reliability of electricity consumption, and promote the stable operation of the power industry, the State Grid Corporation of China has fully launched the construction of smart grids, increased the monitoring of power system operation, and improved the stable operation level of the power system to ensure the high-quality and efficient operation of smart grids.

[0003] The existing monitoring of transmission lines cannot accurately locate the damage and faults of the transmission lines, resulting in the inability to issue early warnings in a timely manner. In addition, the installation is inconvenient and it is easy to cause sealing failure and affect the monitoring function. Therefore, it does not meet the existing needs. In this regard, we propose a transmission line anti-external damage detection and early warning device based on millimeter-wave radar. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission line anti-external damage detection and early warning device based on millimeter wave radar, so as to solve the problem raised in the above background technology that when monitoring the transmission line, the damage and fault of the transmission line cannot be accurately located, resulting in the inability to issue early warnings in time, and the installation is inconvenient, which easily causes sealing failure and affects the monitoring function.

[0005] To achieve the above object, the present invention provides the following technical solutions: A millimeter-wave radar-based transmission line anti-external damage detection and early warning device, comprising a splicing protection mechanism, a sealing monitoring mechanism and an inner shell monitoring mechanism, the bottom end of the splicing protection mechanism is equipped with a sealing monitoring mechanism, the inner side of the splicing protection mechanism is equipped with a sealing connection mechanism, the inner side of the sealing connection mechanism is equipped with an inner shell monitoring mechanism, the inner side of the inner shell monitoring mechanism is equipped with a cable body, the splicing protection mechanism comprises a first protective shell, the upper end surface of the first protective shell is equipped with a second protective shell, both ends of the second protective shell are equipped with fixed pressure strips, three photovoltaic panels are installed between the two fixed pressure strips, and an isolation cavity is provided between the first protective shell and the second protective shell; The inner shell monitoring mechanism includes two isolation inner shells, and the two isolation inner shells are arranged on the inner side of the isolation cavity, wherein a battery is fixedly installed on the bottom end of one of the isolation inner shells, a shielding layer is fixedly installed on the inner wall of the isolation inner shell, a mounting groove plate is fixedly installed on the inner side of the isolation inner shell, a connecting angle plate is slidably connected to the inner side of the middle part of the mounting groove plate, a supporting spring is provided in the middle part of the connecting angle plate, a guide rod is installed on the inner side of the supporting spring, a limiting ring is installed on one end of the guide rod, elastic insulating blocks are installed on both ends of the connecting angle plate, an insulating sleeve is installed on the inner side of the elastic insulating block, two millimeter-wave radar sensors are installed on the inner sides of two of the insulating sleeves, and two quantum radar sensors are installed on the inner sides of the other two insulating sleeves.

[0006] Preferably, the sealing connection mechanism includes two supporting frame bars, a sealing frame bar is installed on one side of the supporting frame bar, two mounting connection sleeves are installed at both ends of the two supporting frame bars, two locking rings are installed between two adjacent mounting connection sleeves, a sealing ring is installed on one side of the locking ring, and an anti-slip sleeve is installed on one side of the sealing ring.

[0007] Preferably, the sealing monitoring mechanism includes a mounting sleeve, the upper end of the mounting sleeve is connected to the first protective shell, a drying ring is installed on the inner side of the mounting sleeve, an isolation cover is installed on the bottom end of the drying ring, and a humidity sensor is installed on the inner side of the isolation cover.

[0008] Preferably, the two support frame bars are connected to the first protective shell and the second protective shell through two sealing frame bars, and both ends of each support frame bar are connected to two installation connection sleeves, and the installation connection sleeve is connected to the cable body through a sealing ring, and the sealing ring is connected to the installation connection sleeve, and the sealing ring is arranged between the installation connection sleeve and the locking pressure ring, and the cross-sectional shape of the installation connection sleeve and the locking pressure ring is semicircular.

[0009] Preferably, the installation connecting sleeve is connected to the anti-slip sleeve, and both ends of the first protective shell and the second protective shell are fixed to the four installation connecting sleeves by screws. A plurality of anti-slip rings are provided on the inner side of the anti-slip sleeve, and the anti-slip sleeve and the plurality of anti-slip rings are integrally cast, and the two anti-slip sleeves are symmetrically installed, and the anti-slip sleeve is connected to the cable body through the anti-slip ring.

[0010] Preferably, the mounting sleeve is through-connected with the isolation cavity, the upper end of the humidity sensor passes through the isolation cover and is plugged into the inner side of the isolation cavity, the humidity sensor is connected to the mounting sleeve through the isolation cover, the drying ring is bonded and fixed to the isolation cover, and the interior of the drying ring is filled with desiccant.

[0011] Preferably, both ends of the second protective shell are connected to two fixed pressure strips, both ends of the three photovoltaic panels are inserted between the second protective shell and the fixed pressure strips, the photovoltaic panels are connected to the second protective shell through the two fixed pressure strips, the three photovoltaic panels are electrically connected to the battery, and a wireless transmission module is provided on the inner side of the battery.

[0012] Preferably, one end of the guide rod away from the limiting ring passes through the connecting angle plate and the supporting spring and is welded and fixed to the isolation inner shell, the guide rod is connected to the limiting ring by threads, and the guide rod is slidably connected to the connecting angle plate.

[0013] Preferably, the middle part of the connecting angle plate is connected to the isolation inner shell through a supporting spring, and the two ends of the connecting angle plate pass through the mounting slot plate and are distributed on both sides of the cable body. The two ends of the two connecting angle plates are connected and fixed to the four elastic insulating blocks through insulating sleeves, and the insulating sleeves are connected to the connecting angle plates through threads.

[0014] Preferably, the millimeter-wave radar sensor and the quantum radar sensor are both connected to the insulating sleeve by threads, and the two millimeter-wave radar sensors and the quantum radar sensor are electrically connected to the battery, one of the millimeter-wave radar sensor and the quantum radar sensor is a signal transmitting end, and the other millimeter-wave radar sensor and the quantum radar sensor is a signal receiving end.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention splices and assembles two isolation inner shells and sleeves them on the outside of the cable body, so that the connecting angle plate can contact the cable body through the elastic insulating block under the support of the support spring, and a plurality of anti-slip rings are provided on the inner wall of the anti-slip sleeve, so that the cable body can be unidirectionally clamped through the plurality of anti-slip rings, and the two anti-slip sleeves are symmetrically installed, so that the anti-slip sleeve can maintain the axial stability of the whole and the cable body, and the battery can be used to counterweight the whole, so that the three photovoltaic panels on the second protective shell are always at the uppermost part, so that the three photovoltaic panels can realize photovoltaic power generation operation and supplement the battery with electric energy; 2. The present invention can monitor the humidity inside the isolation cavity in real time through the humidity sensor, and realize the overall sealing detection, so as to avoid the reduction of service life caused by sealing failure. A wireless transmission module is provided on the inner side of the battery, and the data monitored by the humidity sensor can be transmitted through the wireless transmission module, so as to facilitate timely warning when the sealing fails; 3. The present invention installs two millimeter-wave radar sensors and quantum radar sensors on the inner sides of four insulating sleeves respectively, wherein one millimeter-wave radar sensor and quantum radar sensor is a signal transmitting end, and the other millimeter-wave radar sensor and quantum radar sensor is a signal receiving end. The signal transmitting end and the signal receiving end in the two detection devices are used to transmit signals multiple times through the cable body and perform signal recognition, and then the damage or fault on the cable body is monitored in real time and quickly located according to the phase difference of the signal arrival. At the same time, the monitored signal is transmitted through the wireless transmission module to achieve timely warning and avoid the expansion of the damage to the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the spliced ​​protection mechanism of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the splicing type protection mechanism of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the sealing connection mechanism of the present invention; Figure 5 It is a schematic cross-sectional structure diagram of the sealing monitoring mechanism of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the inner shell monitoring mechanism of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the inner shell monitoring mechanism of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the isolation inner shell of the present invention; In the figure: 1, splicing type protection mechanism; 101, first protection shell; 102, second protection shell; 103, photovoltaic panel; 104, fixed pressure strip; 105, isolation cavity; 2. Sealing connection mechanism; 201. Installing connection sleeve; 202. Sealing frame strip; 203. Locking pressure ring; 204. Support frame strip; 205. Anti-slip sleeve; 206. Sealing ring; 3. Sealing monitoring mechanism; 301. Mounting sleeve; 302. Drying ring; 303. Humidity sensor; 304. Isolation cover; 4. Inner shell monitoring mechanism; 401. Isolation inner shell; 402. Shielding layer; 403. Mounting slot plate; 404. Support spring; 405. Battery; 406. Guide rod; 407. Connecting angle plate; 408. Limiting ring; 409. Elastic insulating block; 410. Insulating sleeve; 411. Millimeter wave radar sensor; 412. Quantum radar sensor; 5. Cable body. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] See also Figures 1 to 8 , an embodiment of the present invention provides: a millimeter wave radar-based transmission line anti-external damage detection and early warning device, comprising a splicing protection mechanism 1, a sealing monitoring mechanism 3 and an inner shell monitoring mechanism 4, the splicing protection mechanism 1 comprises a first protective shell 101, a second protective shell 102 is installed on the upper end surface of the first protective shell 101, an isolation cavity 105 is provided between the first protective shell 101 and the second protective shell 102, and the splicing protection mechanism 1 can be used to seal and protect the whole to maintain functional stability; Fixed strips 104 are installed at both ends of the second protective shell 102, and three photovoltaic panels 103 are installed between the two fixed strips 104. Both ends of the second protective shell 102 are connected to the two fixed strips 104, and both ends of the three photovoltaic panels 103 are plugged between the second protective shell 102 and the fixed strips 104. The photovoltaic panels 103 are connected to the second protective shell 102 through the two fixed strips 104. The three photovoltaic panels 103 realize photovoltaic power generation operations and can supplement electric energy.

[0019] See also Figures 2 to 8 , an inner shell monitoring mechanism 4 is installed on the inner side of the sealing connection mechanism 2, a cable body 5 is installed on the inner side of the inner shell monitoring mechanism 4, the inner shell monitoring mechanism 4 includes two isolated inner shells 401, the two isolated inner shells 401 are arranged on the inner side of the isolation cavity 105, a battery 405 is fixedly installed on the bottom end of one of the isolated inner shells 401, the three photovoltaic panels 103 are electrically connected to the battery 405, a wireless transmission module is arranged on the inner side of the battery 405, and the battery 405 can be used to balance the whole, so as to keep the three photovoltaic panels 103 on the second protective shell 102 always at the top; A shielding layer 402 is fixedly provided on the inner wall of the isolation inner shell 401, a mounting groove plate 403 is fixedly provided on the inner side of the isolation inner shell 401, a connecting angle plate 407 is slidably connected to the inner side of the middle part of the mounting groove plate 403, a supporting spring 404 is provided in the middle part of the connecting angle plate 407, a guide rod 406 is installed on the inner side of the supporting spring 404, a limiting ring 408 is installed on one end of the guide rod 406, an end of the guide rod 406 away from the limiting ring 408 passes through the connecting angle plate 407 and the supporting spring 404 and is welded and fixed to the isolation inner shell 401, the guide rod 406 is connected to the limiting ring 408 by threads, and the guide rod 406 is slidably connected to the connecting angle plate 407, so that the connecting angle plate 407 can contact the cable body 5 through the elastic insulating block 409 under the support of the supporting spring 404; Both ends of the connecting angle plate 407 are installed with elastic insulating blocks 409, and the inner side of the elastic insulating block 409 is installed with an insulating sleeve 410. The middle part of the connecting angle plate 407 is connected to the isolation inner shell 401 through the support spring 404. The two ends of the connecting angle plate 407 pass through the installation slot plate 403 and are distributed on both sides of the cable body 5. The two ends of the two connecting angle plates 407 are connected and fixed to the four elastic insulating blocks 409 through the insulating sleeve 410. The insulating sleeve 410 is connected to the connecting angle plate 407 by threads. The insulating sleeve 410 can keep the millimeter wave radar sensor 411 and the quantum radar sensor 412 in stable contact with the cable body 5; Two millimeter-wave radar sensors 411 are installed on the inner side of two insulating sleeves 410, and two quantum radar sensors 412 are installed on the inner side of the other two insulating sleeves 410. The millimeter-wave radar sensors 411 and the quantum radar sensors 412 are both connected to the insulating sleeves 410 by threads. The two millimeter-wave radar sensors 411 and the quantum radar sensors 412 are electrically connected to the battery 405. One of the millimeter-wave radar sensors 411 and the quantum radar sensor 412 is a signal transmitting end, and the other millimeter-wave radar sensor 411 and the quantum radar sensor 412 is a signal receiving end. The signal transmitting end and the signal receiving end transmit signals multiple times through the cable body 5 and perform signal recognition, and then realize real-time monitoring and rapid positioning of damage or faults on the cable body 5 according to the phase difference of signal arrival.

[0020] See also Figures 2 to 4 A sealing connection mechanism 2 is installed on the inner side of the splicing protection mechanism 1, and the sealing connection mechanism 2 includes two support frame bars 204, a sealing frame bar 202 is installed on one side of the support frame bar 204, two installation connection sleeves 201 are installed at both ends of the two support frame bars 204, and two locking pressure rings 203 are installed between two adjacent installation connection sleeves 201. The two support frame bars 204 are connected to the first protective shell 101 and the second protective shell 102 through two sealing frame bars 202, and both ends of each support frame bar 204 are connected to the two installation connection sleeves 201. The cross-sectional shape of the installation connection sleeve 201 and the locking pressure ring 203 is semicircular, and the sealing frame bar 202 and the sealing ring 206 can seal the ends of the first protective shell 101 and the second protective shell 102 and the cable body 5 to keep the isolation cavity 105 in a sealed state; A sealing ring 206 is installed on one side of the locking pressure ring 203, and an anti-slip sleeve 205 is installed on one side of the sealing ring 206. The installation connecting sleeve 201 is connected to the cable body 5 through the sealing ring 206, and the sealing ring 206 is connected to the installation connecting sleeve 201. The sealing ring 206 is arranged between the installation connecting sleeve 201 and the locking pressure ring 203, and the installation connecting sleeve 201 is connected to the anti-slip sleeve 205. Both ends of the first protective shell 101 and the second protective shell 102 are fixed to the four installation connecting sleeves 201 by screws. A plurality of anti-slip rings are provided on the inner side of the anti-slip sleeve 205. The anti-slip sleeve 205 and the plurality of anti-slip rings are integrally cast, and the two anti-slip sleeves 205 are symmetrically installed. The anti-slip sleeve 205 is connected to the cable body 5 through the anti-slip rings, and the cable body 5 can be unidirectionally clamped through the plurality of anti-slip rings, so that the axial stability of the whole and the cable body 5 can be maintained through the anti-slip sleeve 205.

[0021] See also Figure 1 and Figure 5 A sealing monitoring mechanism 3 is installed at the bottom end of the splicing protection mechanism 1, and the sealing monitoring mechanism 3 includes a mounting sleeve 301, the upper end of the mounting sleeve 301 is connected to the first protective shell 101, a drying ring 302 is installed on the inner side of the mounting sleeve 301, an isolation cover 304 is installed on the bottom end of the drying ring 302, a humidity sensor 303 is installed on the inner side of the isolation cover 304, the mounting sleeve 301 is connected with the isolation cavity 105, the upper end of the humidity sensor 303 passes through the isolation cover 304 and is plugged into the inner side of the isolation cavity 105, the humidity sensor 303 is connected to the mounting sleeve 301 through the isolation cover 304, the drying ring 302 is bonded and fixed to the isolation cover 304, the interior of the drying ring 302 is filled with a desiccant, and the humidity sensor 303 can be used to monitor the humidity of the inner side of the isolation cavity 105 in real time, and realize the overall sealing detection to avoid the reduction of the service life caused by sealing failure.

[0022] In summary, when monitoring and warning the transmission line, the inner shell monitoring mechanism 4 is preferably sleeved on the outside of the cable body 5, specifically, the connecting angle plate 407 is placed between the mounting slot plate 403 and the guide rod 406, so that the connecting angle plate 407 is connected to the isolation inner shell 401 through the support spring 404, and then the limit ring 408 and the guide rod 406 are threadedly connected to achieve the limit of the connecting angle plate 407, and the two isolation inner shells 401 are spliced ​​and assembled and sleeved on the outside of the cable body 5, so that the connecting angle plate 407 can contact the cable body 5 through the elastic insulating block 409 under the support of the support spring 404, and two millimeter wave radar sensors 411 and quantum radar sensors 412 are respectively installed on the inner sides of the four insulating sleeves 410, and then the spliced ​​protection mechanism 1 is sleeved on the outside of the inner shell monitoring mechanism 4; Specifically, the two ends of the two support frame bars 204 are connected to the four installation connection sleeves 201, and the sealing ring 206 is compressed by connecting the support frame bars 204 through the locking pressure ring 203. At this time, the first protective shell 101 and the second protective shell 102 are spliced ​​and assembled and sleeved on the outside of the installation connection sleeve 201, so that the sealing frame bar 202 can seal between the first protective shell 101 and the second protective shell 102 under the support of the support frame bar 204. At the same time, the sealing ring 206 can seal between the two ends of the first protective shell 101 and the second protective shell 102 and the cable body 5 under the support of the locking pressure ring 203, so as to keep the isolation cavity 105 formed inside the first protective shell 101 and the second protective shell 102 in a sealed state, thereby improving the sealing stability of the inner shell monitoring mechanism 4 inside the isolation cavity 105; A plurality of anti-slip rings are provided on the inner wall of the anti-slip sleeve 205, so that the cable body 5 can be unidirectionally clamped through the plurality of anti-slip rings, and the two anti-slip sleeves 205 are symmetrically installed, so that the anti-slip sleeve 205 can maintain the axial stability of the whole and the cable body 5, and the battery 405 is fixedly installed at the bottom end of one of the isolation inner shells 401, so that the battery 405 can be used to balance the whole, and the three photovoltaic panels 103 on the second protective outer shell 102 are always kept at the top, so that the three photovoltaic panels 103 can realize photovoltaic power generation operation and supplement the battery 405 with electric energy.

[0023] A humidity sensor 303 is installed on the inner side of the isolation cover 304, so that the humidity sensor 303 can monitor the humidity inside the isolation cavity 105 in real time and realize the overall sealing detection to avoid the reduction of service life caused by sealing failure. A wireless transmission module is provided on the inner side of the battery 405, and the data monitored by the humidity sensor 303 can be transmitted through the wireless transmission module, so as to facilitate timely warning when the sealing fails; One of the millimeter-wave radar sensor 411 and the quantum radar sensor 412 is a signal transmitting end, and the other millimeter-wave radar sensor 411 and the quantum radar sensor 412 is a signal receiving end. When multiple detection devices are distributed on the cable body 5, the signal transmitting end and the signal receiving end in the two detection devices are used to transmit the signal multiple times through the cable body 5 and perform signal recognition, and then the damage or fault on the cable body 5 is monitored in real time and quickly located according to the phase difference of the signal arrival. At the same time, the monitored signal is transmitted through the wireless transmission module to achieve timely warning and avoid the expansion of the damage to the cable body 5.

[0024] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A millimeter wave radar-based power transmission line anti-external damage detection and early warning device, comprising a spliced ​​protection mechanism (1), a sealing monitoring mechanism (3) and an inner shell monitoring mechanism (4), characterized in that: A sealing monitoring mechanism (3) is installed at the bottom end of the spliced ​​protection mechanism (1), a sealing connection mechanism (2) is installed on the inner side of the spliced ​​protection mechanism (1), an inner shell monitoring mechanism (4) is installed on the inner side of the sealing connection mechanism (2), and a cable body (5) is installed on the inner side of the inner shell monitoring mechanism (4), the spliced ​​protection mechanism (1) comprises a first protective shell (101), a second protective shell (102) is installed on the upper end surface of the first protective shell (101), fixed pressure strips (104) are installed at both ends of the second protective shell (102), three photovoltaic panels (103) are installed between the two fixed pressure strips (104), and an isolation cavity (105) is provided between the first protective shell (101) and the second protective shell (102); The inner shell monitoring mechanism (4) comprises two isolated inner shells (401), the two isolated inner shells (401) being arranged on the inner side of the isolated cavity (105), a battery (405) being fixedly mounted on the bottom end of one of the isolated inner shells (401), a shielding layer (402) being fixedly mounted on the inner wall of the isolated inner shell (401), a mounting groove plate (403) being fixedly mounted on the inner side of the isolated inner shell (401), a connecting angle plate (407) being slidably connected to the inner side of the middle part of the mounting groove plate (403), and a connecting angle plate (407) being provided in the middle part of the connecting angle plate (407). A support spring (404), a guide rod (406) is installed on the inner side of the support spring (404), a limit ring (408) is installed on one end of the guide rod (406), elastic insulating blocks (409) are installed on both ends of the connecting angle plate (407), an insulating sleeve (410) is installed on the inner side of the elastic insulating block (409), two millimeter wave radar sensors (411) are installed on the inner sides of two of the insulating sleeves (410), and two quantum radar sensors (412) are installed on the inner sides of the other two insulating sleeves (410).

2. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 1 is characterized in that: The sealing connection mechanism (2) comprises two support frame bars (204), a sealing frame bar (202) being installed on one side of the support frame bars (204), two mounting connection sleeves (201) being installed on both ends of the two support frame bars (204), two locking pressure rings (203) being installed between two adjacent mounting connection sleeves (201), a sealing ring (206) being installed on one side of the locking pressure ring (203), and an anti-slip sleeve (205) being installed on one side of the sealing ring (206).

3. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 1 is characterized in that: The sealing monitoring mechanism (3) comprises a mounting sleeve (301), the upper end of the mounting sleeve (301) is connected to the first protective housing (101), a drying ring (302) is mounted on the inner side of the mounting sleeve (301), an isolation cover (304) is mounted on the bottom end of the drying ring (302), and a humidity sensor (303) is mounted on the inner side of the isolation cover (304).

4. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 2 is characterized in that: The two support frame bars (204) are connected to the first protective housing (101) and the second protective housing (102) via two sealing frame bars (202); both ends of each support frame bar (204) are connected to two installation connection sleeves (201); the installation connection sleeve (201) is connected to the cable body (5) via a sealing ring (206); the sealing ring (206) is connected to the installation connection sleeve (201); the sealing ring (206) is arranged between the installation connection sleeve (201) and the locking pressure ring (203); and the cross-sectional shape of the installation connection sleeve (201) and the locking pressure ring (203) is semicircular.

5. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 4 is characterized in that: The installation connection sleeve (201) is connected to the anti-slip sleeve (205); both ends of the first protective shell (101) and the second protective shell (102) are fixed to the four installation connection sleeves (201) by screws; a plurality of anti-slip rings are provided on the inner side of the anti-slip sleeve (205); the anti-slip sleeve (205) and the plurality of anti-slip rings are integrally cast; the two anti-slip sleeves (205) are symmetrically installed; and the anti-slip sleeve (205) is connected to the cable body (5) by the anti-slip rings.

6. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 3 is characterized in that: The installation sleeve (301) is connected to the isolation chamber (105); the upper end of the humidity sensor (303) passes through the isolation cover (304) and is plugged into the inner side of the isolation chamber (105); the humidity sensor (303) is connected to the installation sleeve (301) via the isolation cover (304); the drying ring (302) is bonded and fixed to the isolation cover (304); and the interior of the drying ring (302) is filled with a desiccant.

7. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 1 is characterized in that: Both ends of the second protective shell (102) are connected to the two fixed pressure strips (104), both ends of the three photovoltaic panels (103) are plugged between the second protective shell (102) and the fixed pressure strips (104), the photovoltaic panels (103) are connected to the second protective shell (102) via the two fixed pressure strips (104), the three photovoltaic panels (103) are electrically connected to the battery (405), and a wireless transmission module is provided on the inner side of the battery (405).

8. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 7 is characterized in that: One end of the guide rod (406) away from the limiting ring (408) passes through the connecting angle plate (407) and the supporting spring (404) and is welded and fixed to the isolation inner shell (401); the guide rod (406) is connected to the limiting ring (408) by threads; and the guide rod (406) is slidably connected to the connecting angle plate (407).

9. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 7 is characterized in that: The middle part of the connecting angle plate (407) is connected to the isolation inner shell (401) via a support spring (404); both ends of the connecting angle plate (407) pass through the mounting slot plate (403) and are distributed on both sides of the cable body (5); both ends of the two connecting angle plates (407) are connected and fixed to four elastic insulating blocks (409) via insulating sleeves (410); and the insulating sleeves (410) are connected to the connecting angle plates (407) via threads.

10. The millimeter wave radar-based power transmission line anti-external damage detection and early warning device according to claim 9, characterized in that: The millimeter wave radar sensor (411) and the quantum radar sensor (412) are both connected to the insulating sleeve (410), and the two millimeter wave radar sensors (411) and the quantum radar sensor (412) are electrically connected to the battery (405), one of the millimeter wave radar sensor (411) and the quantum radar sensor (412) is a signal transmitting end, and the other millimeter wave radar sensor (411) and the quantum radar sensor (412) is a signal receiving end.

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