Cement telegraph pole with inclination alarm function
By integrating the inclination angle and pressure monitoring modules, support and straightening modules on the cement pole, and timely adjusting the support direction and strength, the problem of insufficient tilt monitoring accuracy of the cement pole is solved, and the stability and safety of the pole is improved.
Patent Information
- Application Number
- CN202510578186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2025-07-25
AI Technical Summary
In the prior art, the inclination monitoring method of cement telephone poles is insufficient in accuracy, it is difficult to detect small and continuous inclination changes, and the protection measures are single, so it is difficult to adjust the support force and direction in time according to the inclination situation, resulting in the pole further inclination, which poses safety hazards.
A cement telephone pole with inclination alarm function was designed, integrating an inclination angle monitoring module, pressure monitoring module, support module, straightening module and alarm. Through the processor working together, the precise inclination measurement of the telephone pole and automatic adjustment of the support direction are realized, and alarm and straightening are promptly alarmed and straightened.
It can capture slight tilt changes in time, automatically adjust the support position and angle, ensure that the pole remains upright, avoid tilting, and improve the stability and safety of the pole.
Smart Images

Figure CN120367449A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cement electric poles, and specifically to a cement electric pole with an inclination alarm function. Background Art
[0002] In the fields of power transmission and communication, cement electric poles, as important infrastructure, play a key role in erecting lines such as electric wires and cables. However, after the installation of cement electric poles, the connection force between the cement electric poles and the ground is insufficient, and the cement electric poles are often challenged by various external force factors, such as strong winds and the settlement of the cement electric poles themselves. These external forces may cause the electric poles to tilt. If the tilt angle is too large and not dealt with in time, it will not only affect the normal transmission of electricity and communication, but may also lead to serious safety accidents such as the collapse of the electric poles, posing a great threat to the surrounding personnel and property.
[0003] At present, although there are some methods for monitoring and protecting the inclination of electric poles after the installation of cement electric poles, most of them have problems such as insufficient monitoring accuracy, untimely response, and single protection measures. For example, traditional inclination monitoring methods can only detect large-amplitude inclinations and are difficult to detect small and continuous inclination changes caused by the settlement of cement electric poles themselves; and the protection measures only rely on manual use of inclined struts for simple support, and it is difficult to adjust the support strength and direction in time according to the inclination situation, making it difficult to effectively prevent the further inclination of the electric poles. Therefore, it is of great practical significance to develop a cement electric pole with an inclination alarm function. Summary of the Invention
[0004] Aiming at the deficiencies of the prior art, the present invention provides a cement electric pole with an inclination alarm function, which solves the problems that some traditional inclination monitoring methods for cement electric poles can only detect large-amplitude inclinations, are difficult to detect small and continuous inclination changes, and the protection measures only rely on manual use of inclined struts for simple support, and it is difficult to adjust the support strength and direction in time according to the inclination situation, making it difficult to effectively prevent the further inclination of the electric poles.
[0005] To achieve the above object, the present invention is realized through the following technical solutions: A cement electric pole with an inclination alarm function includes: The electric pole body; A support module, which is arranged on the electric pole body and is used to support the electric pole body to prevent the inclination angle from being too large; A straightening module, which is arranged on the electric pole body and is used to tighten the electric pole body and straighten the electric pole body; An inclination monitoring module, which is arranged on the electric pole body and is used to measure the inclination degree of the electric pole body; A pressure monitoring module, which is arranged at the bottom of the support module and is used to measure the oblique pressure value generated by the inclination of the telegraph pole body; An alarm, which is installed on the telegraph pole body and is used to give an alarm to warn people; A processor, which is connected to the support module, the straightening module, the inclination monitoring module, the pressure monitoring module and the alarm. The processor controls the operation of the support module, the straightening module and the alarm according to the inclination degree and the oblique pressure value.
[0006] Preferably, the support module includes: Sliding rail seats, two sliding rail seats are provided, and the two sliding rail seats are fixedly sleeved on the telegraph pole body, and sliding grooves are formed on the sliding rail seats; A driving component, which is arranged on the sliding rail seat; A support component, which is arranged on one side of the driving component; A counterweight block, which is arranged on the other side of the driving component.
[0007] Preferably, the driving component includes: A linear motor; A moving ring block, which is slidably connected in the sliding groove; Connecting blocks, two connecting blocks are provided, the two connecting blocks are symmetrically arranged, and the two connecting blocks are respectively fixedly connected to both sides of the moving ring block, and the linear motor is installed on one of the connecting blocks.
[0008] Preferably, the support component includes: A sleeve rod, the top of the sleeve rod is fixedly connected with a first hinge seat, the sleeve rod is rotationally connected with the other connecting block through the first hinge seat, and one side of the sleeve rod is fixedly connected with a second hinge seat; A telescopic rod, which is slidably connected in the sleeve rod; A first hydraulic mechanism, which is arranged on the sleeve rod and is used to drive the telescopic rod to extend and retract; A second hydraulic mechanism, which is arranged on one side of the sleeve rod and is rotationally connected with the sleeve rod through the second hinge seat.
[0009] Preferably, the counterweight block is fixedly connected to one of the connecting blocks and is used for the balance of the telegraph pole body.
[0010] Preferably, the straightening module includes: A pull ring block, which is movably sleeved on the telegraph pole body; The third hydraulic mechanism is arranged on one side of the pull-ring block and is used to drive the pull-ring block to move. The fixed rod is arranged on one side of the third hydraulic mechanism, and the third hydraulic mechanism is installed on the top of the fixed rod. The auxiliary pulley is arranged on one side of the fixed rod. The sliding plate is fixedly connected to the bottom of the fixed rod, and a transmission component is arranged inside the sliding plate. The driving motor is installed on the sliding plate, and the output end of the driving motor is connected to the transmission component. The roller is connected to the transmission component. The circumferential guide rail is installed on the ground, and the roller is in rolling connection inside the circumferential guide rail.
[0011] Preferably, the inclination monitoring module includes an inclination sensor, which is installed on the pole body and connected to the processor. When the pole body tilts under external force, the inclination sensor can capture tiny angle changes.
[0012] Preferably, the pressure monitoring module includes: The cushion block is rotatably connected to the bottom end of the telescopic rod. The pressure sensor is installed inside the cushion block and connected to the processor. When the cushion block is under pressure, the sensitive element inside the pressure sensor will deform, and then an electrical signal is output.
[0013] The present invention discloses a cement pole with an inclination alarm function, and its beneficial effects are as follows: This cement pole with an inclination alarm function is provided with an inclination monitoring module, a pressure monitoring module, a support module, a straightening module and a processor. Through the inclination sensor, the inclination degree of the pole body can be accurately measured, and even tiny angle changes can be captured in time, providing accurate data support for subsequent protection and alarm. The support module, through connection with the processor, can automatically adjust the support direction according to the data provided by the inclination monitoring module to achieve preliminary protection of the pole. The driving component, support component and counterweight block in the support module cooperate with each other to flexibly adjust the support position and angle according to the inclination situation; through the pressure sensor, the pressure value at the bottom of the support module can be detected, providing accurate data support for subsequent alarm and straightening. By moving to the reverse position of the inclination direction of the pole body and applying a pulling force to the pole body through the pull-ring block, the straightening of the pole body is realized, which can not only keep the pole body upright, but also avoid the problem of the pole body falling and causing harm to personnel during maintenance.
[0014] A cement pole with an inclination alarm function, through the mutual cooperation between modules, has a reasonable structure and can effectively improve the overall stability of the pole. The design of the support module and the straightening module fully considers the force characteristics of the pole under different inclination conditions and can provide reliable support and straightening effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0016] Figure 1 Structural schematic diagram of the present invention; Figure 2 Structural schematic diagram of the support module and the pressure monitoring module of the present invention; Figure 3 Structural schematic diagram of the slide rail seat, the drive assembly and the support assembly of the present invention; Figure 4 Structural schematic diagram of the straightening module of the present invention; Figure 5 Structural schematic diagram of the inclination monitoring module, the alarm and the processor of the present invention; Figure 6 Structural block diagram of the present invention; Figure 7 Inclination alarm control flowchart of the present invention.
[0017] In the figure: 1, pole body; 2, support module; 21, slide rail seat; 211, chute; 22, drive assembly; 221, linear motor; 222, moving ring block; 223, connecting block; 23, support assembly; 231, sleeve rod; 2311, first hinge seat; 2312, second hinge seat; 232, telescopic rod; 233, first hydraulic mechanism; 234, second hydraulic mechanism; 24, counterweight block; 3, straightening module; 31, pull ring block; 32, third hydraulic mechanism; 33, fixed rod; 34, auxiliary pulley; 35, slide plate; 36, drive motor; 37, roller; 38, circumferential guide rail; 4, inclination monitoring module; 5, pressure monitoring module; 51, cushion block; 52, pressure sensor; 6, alarm; 7, processor. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0019] An embodiment of the present invention discloses a cement pole with an inclination alarm function. Embodiment 1
[0020] As shown in the attached Figures 1-7 figure, it includes: A pole body 1; A support module 2, which is arranged on the pole body 1 and is used to support the pole body 1 to prevent the inclination angle from being too large; A straightening module 3, which is arranged on the pole body 1 and is used to tighten and straighten the pole body 1; An inclination monitoring module 4, which is arranged on the pole body 1 and is used to measure the inclination degree of the pole body 1; A pressure monitoring module 5, which is arranged at the bottom of the support module 2 and is used to measure the oblique pressure value generated by the inclination of the pole body 1; An alarm 6, which is installed on the pole body 1 and is used to give an alarm to warn people; A processor 7, which is connected to the support module 2, the straightening module 3, the inclination monitoring module 4, the pressure monitoring module 5, and the alarm 6. The processor 7 controls the operation of the support module 2, the straightening module 3, and the alarm 6 according to the inclination degree and the oblique pressure value.
[0021] Further, the support module 2 includes: Two slide rail seats 21, which are fixedly sleeved on the pole body 1, and a slide groove 211 is opened on the slide rail seat 21; A driving component 22, which is arranged on the slide rail seat 21; A support component 23, which is arranged on one side of the driving component 22; A counterweight 24, which is arranged on the other side of the driving component 22.
[0022] Further, the driving component 22 includes: A linear motor 221; A moving ring block 222, which is slidably connected in the slide groove 211; The connecting blocks 223 are provided in two numbers, and the two connecting blocks 223 are symmetrically arranged. The two connecting blocks 223 are respectively fixedly connected to both sides of the moving ring block 222, and the linear motor 221 is installed on one of the connecting blocks 223.
[0023] Furthermore, the supporting assembly 23 includes: A sleeve rod 231, the top of the sleeve rod 231 is fixedly connected with a first hinge seat 2311. The sleeve rod 231 and the other connecting block 223 are rotationally connected through the first hinge seat 2311, and a second hinge seat 2312 is fixedly connected to one side of the sleeve rod 231; A telescopic rod 232, the telescopic rod 232 is slidably connected inside the sleeve rod 231; A first hydraulic mechanism 233, the first hydraulic mechanism 233 is arranged on the sleeve rod 231, and the first hydraulic mechanism 233 is used to drive the telescopic rod 232 to expand and contract; A second hydraulic mechanism 234, the second hydraulic mechanism 234 is arranged on one side of the sleeve rod 231, and the second hydraulic mechanism 234 and the sleeve rod 231 are rotationally connected through the second hinge seat 2312. When the linear motor 221 in the driving assembly 22 is started, the moving ring block 222 is driven by the connecting block 223 to slide in the chute 211 of the slide rail base 21, thereby adjusting the position of the supporting assembly 23. At the same time, the second hydraulic mechanism 234 adjusts the angle between the sleeve rod 231 and the ground according to the inclination direction and angle. The first hydraulic mechanism 233 drives the telescopic rod 232 to expand and contract, so that the cushion block 51 is in close contact with the ground, providing a supporting force to prevent the pole body 1 from tilting further.
[0024] Furthermore, a counterweight block 24 is fixedly connected to one of the connecting blocks 223, and the counterweight block 24 is used for the balance of the pole body 1.
[0025] Furthermore, the straightening module 3 includes: A pull ring block 31, the pull ring block 31 is movably sleeved on the pole body 1, and after the pole body 1 has settled and stabilized, the pull ring block 31 can be removed from the pole body 1; A third hydraulic mechanism 32, the third hydraulic mechanism 32 is arranged on one side of the pull ring block 31, and the third hydraulic mechanism 32 is used to drive the pull ring block 31 to move; A fixed rod 33, the fixed rod 33 is arranged on one side of the third hydraulic mechanism 32, and the third hydraulic mechanism 32 is installed on the top of the fixed rod 33; An auxiliary pulley 34, the auxiliary pulley 34 is arranged on one side of the fixed rod 33; A slide plate 35, the slide plate 35 is fixedly connected to the bottom of the fixed rod 33, and a transmission assembly is arranged inside the slide plate 35; The driving motor 36 is installed on the sliding plate 35, and the output end of the driving motor 36 is connected to the transmission component; The roller 37 is connected to the transmission component; The circumferential guide rail 38 is installed on the ground and can be removed after the settlement of the pole body 1 is stable. The roller 37 is in rolling connection within the circumferential guide rail 38. The driving motor 36 can drive the transmission component to work, causing the roller 37 to roll within the circumferential guide rail 38, and then driving the fixed rod 33 to make a circular motion around the pole body 1 until it moves to the reverse position of the inclined direction of the pole body 1. At this time, the third hydraulic mechanism 32 is activated to drive the pull ring block 31 to move, and a pulling force is applied to the pole body 1 through the pull ring block 31, thereby realizing the straightening of the pole body 1. Embodiment 2
[0026] According to the attached Figures 1-7 shown, including: The pole body 1; The support module 2 is arranged on the pole body 1, and the support module 2 is used to support the pole body 1 to prevent the inclination angle from being too large; The straightening module 3 is arranged on the pole body 1, and the straightening module 3 is used to tighten the pole body 1 and straighten the pole body 1; The inclination angle monitoring module 4 is arranged on the pole body 1, and the inclination angle monitoring module 4 is used to measure the inclination degree of the pole body 1; The pressure monitoring module 5 is arranged at the bottom of the support module 2, and the pressure monitoring module 5 is used to measure the oblique pressure value generated by the inclination of the pole body 1; The alarm 6 is installed on the pole body 1, and the alarm 6 is used to give an alarm to warn personnel; The processor 7 is connected to the support module 2, the straightening module 3, the inclination angle monitoring module 4, the pressure monitoring module 5 and the alarm 6. The processor 7 controls the operation of the support module 2, the straightening module 3 and the alarm 6 according to the inclination degree and the oblique pressure value.
[0027] Furthermore, the inclination angle monitoring module 4 includes an inclination angle sensor. The inclination angle sensor is installed on the pole body 1 and is connected to the processor 8. When the pole body 1 is inclined under the action of an external force, the inclination angle sensor can capture minute angle changes, and the inclination angle sensor can monitor the inclination degree of the pole body 1 in real time and transmit the data to the processor 7. When the pole body 1 is inclined under the action of an external force, the inclination angle sensor can capture minute angle changes and convert these changes into electrical signals and transmit them to the processor 7.
[0028] Further, the pressure monitoring module 5 includes: A cushion block 51, which is rotatably connected to the bottom end of the telescopic rod 232 A pressure sensor 52, which is installed in the cushion block 51 and connected to the processor 8. When the cushion block 51 is subjected to pressure, the sensitive element inside the pressure sensor 52 will deform, and then an electrical signal will be output. When the pole body 1 tilts, an oblique pressure will be generated, the cushion block 51 will be subjected to pressure, the sensitive element inside the pressure sensor 52 will deform, and then an electrical signal will be output and the data will be transmitted to the processor 7.
[0029] Working principle: First, the inclination sensor in the inclination monitoring module 4 is installed on the pole body 1 to monitor the inclination degree of the pole body 1 in real time and transmit the data to the processor 7. When the pole body 1 tilts under the action of an external force, the inclination sensor can capture the tiny angle changes and convert these changes into electrical signals and transmit them to the processor 7.
[0030] Next, after receiving the oblique angle values transmitted by the inclination monitoring module 4, the processor 7 will process, analyze and judge these data. The processor 7 judges whether the detected inclination angle value exceeds the set value according to the detected inclination angle value. When the inclination degree of the cement pole body 1 exceeds the set value but has not reached the dangerous level, the processor 7 will control the operation of the support module 2, start the linear motor 221 in the driving component 22, drive the moving ring block 222 to slide in the chute 211 of the slide rail seat 21 through the connecting block 223, so as to adjust the position of the support component 23. At the same time, the second hydraulic mechanism 234 adjusts the angle between the sleeve rod 231 and the ground according to the inclination direction and angle, and the first hydraulic mechanism 233 drives the telescopic rod 232 to expand and contract, so that the cushion block 51 is in close contact with the ground, providing a supporting force to prevent the pole body 1 from tilting further.
[0031] Then, the pressure sensor 52 in the pressure monitoring module 5 is installed at the bottom of the support module 2, specifically inside the cushion block 51 at the bottom end of the telescopic rod 232. When the pole body 1 tilts, an oblique pressure will be generated, the cushion block 51 will be subjected to pressure, the sensitive element inside the pressure sensor 52 will deform, and then an electrical signal will be output and the data will be transmitted to the processor 7.
[0032] Finally, after receiving the diagonal pressure values transmitted by the pressure monitoring module 5, the processor 7 will process, analyze, and judge these data. The processor 7 will determine whether the detected diagonal pressure value exceeds the set value. When the diagonal pressure value exceeds the set value, the processor 7 will control the alarm 6 to operate, and the alarm 6 will emit an alarm signal to alert the surrounding personnel to take corresponding measures. At the same time, the processor 7 will control the straightening module 3 to operate, drive the driving motor 36 to drive the transmission assembly to work, so that the roller 37 rolls within the circumferential guide rail 38, driving the fixed rod 33 to make a circular motion around the pole body 1 until it moves to the reverse position of the inclination direction of the pole body 1. At this time, the third hydraulic mechanism 32 is activated to drive the pull-ring block 31 to move, and a pulling force is applied to the pole body 1 through the pull-ring block 31, thereby realizing the straightening of the pole body 1.
[0033] After the pole body 1 is installed, the system monitors the inclination of the pole body 1 and performs corresponding operations according to the above process to ensure timely monitoring of the inclination of the installed pole body 1 and prevent potential safety hazards caused by the pole body 1 tipping over. If the inclination angle of the pole body 1 does not change within the specified time, it can be known that the pole body 1 has settled stably by itself and the connection between the pole body 1 and the ground is more firm. At this time, the support module 2 starts to contract and the straightening module 3 can be removed.
[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A cement pole with an inclination alarm function, characterized in that, Including: The pole body (1); A support module (2), which is arranged on the pole body (1) and is used to support the pole body (1) to prevent the inclination angle from being too large; A straightening module (3), which is arranged on the pole body (1) and is used to tighten the pole body (1) and straighten the pole body (1); An inclination monitoring module (4), which is arranged on the pole body (1) and is used to measure the inclination degree of the pole body (1); A pressure monitoring module (5), which is arranged at the bottom of the support module (2) and is used to measure the oblique pressure value generated by the inclination of the pole body (1); An alarm (6), which is installed on the pole body (1) and is used to give an alarm to warn people; A processor (7), which is connected to the support module (2), the straightening module (3), the inclination monitoring module (4), the pressure monitoring module (5) and the alarm (6). The processor (7) controls the operation of the support module (2), the straightening module (3) and the alarm (6) according to the inclination degree and the oblique pressure value.
2. The cement pole with an inclination alarm function according to claim 1, characterized in that, The support module (2) includes: Sliding rail seats (21), two of the sliding rail seats (21) are provided, and the two sliding rail seats (21) are fixedly sleeved on the pole body (1), and a sliding groove (211) is formed on the sliding rail seat (21); A driving component (22), which is arranged on the sliding rail seat (21); A support component (23), which is arranged on one side of the driving component (22); A counterweight block (24), which is arranged on the other side of the driving component (22).
3. The cement pole with an inclination alarm function according to claim 2, characterized in that, The driving component (22) includes: A linear motor (221); A moving ring block (222), which is slidably connected in the sliding groove (211); Connecting blocks (223), two of the connecting blocks (223) are provided, the two connecting blocks (223) are symmetrically arranged, and the two connecting blocks (223) are respectively fixedly connected to both sides of the moving ring block (222), and the linear motor (221) is installed on one of the connecting blocks (223).
4. A cement pole with an inclined alarm function according to claim 2, characterized in that, The support component (23) includes: A sleeve rod (231), the top of the sleeve rod (231) is fixedly connected with a first hinge seat (2311), the sleeve rod (231) is rotatably connected to the other connecting block (223) through the first hinge seat (2311), and a second hinge seat (2312) is fixedly connected to one side of the sleeve rod (231); A telescopic rod (232), which is slidably connected in the sleeve rod (231); A first hydraulic mechanism (233), which is arranged on the sleeve rod (231) and is used to drive the telescopic rod (232) to expand and contract. The second hydraulic mechanism (234), the second hydraulic mechanism (234) is arranged on one side of the sleeve rod (231), and the second hydraulic mechanism (234) and the sleeve rod (231) are rotationally connected through the second hinge seat (2312).
5. A cement pole with an inclined alarm function according to claim 2, characterized in that, The counterweight block (24) is fixedly connected to one of the connecting blocks (223), and the counterweight block (24) is used for the balance of the telegraph pole body (1).
6. A cement pole with an inclination alarm function according to claim 1, characterized in that, The straightening module (3) includes: A pull ring block (31), the pull ring block (31) is movably sleeved on the telegraph pole body (1); A third hydraulic mechanism (32), the third hydraulic mechanism (32) is arranged on one side of the pull ring block (31), and the third hydraulic mechanism (32) is used to drive the pull ring block (31) to move; A fixed rod (33), the fixed rod (33) is arranged on one side of the third hydraulic mechanism (32), and the third hydraulic mechanism (32) is installed on the top of the fixed rod (33); An auxiliary pulley (34), the auxiliary pulley (34) is arranged on one side of the fixed rod (33); A sliding plate (35), the sliding plate (35) is fixedly connected to the bottom of the fixed rod (33), and a transmission component is arranged inside the sliding plate (35); A driving motor (36), the driving motor (36) is installed on the sliding plate (35), and the output end of the driving motor (36) is connected to the transmission component; A roller (37), the roller (37) is connected to the transmission component; A circumferential guide rail (38), the circumferential guide rail (38) is installed on the ground, and the roller (37) is in rolling connection inside the circumferential guide rail (38).
7. A cement pole with an inclination alarm function according to claim 1, characterized in that, The inclination angle monitoring module (4) includes an inclination angle sensor, the inclination angle sensor is installed on the telegraph pole body (1), and the inclination angle sensor is connected to the processor (8). When the telegraph pole body (1) is inclined under the action of an external force, the inclination angle sensor can capture minute angle changes.
8. A cement pole with an inclined alarm function according to claim 4, characterized in that, The pressure monitoring module (5) includes: A cushion block (51), the cushion block (51) is rotationally connected to the bottom end of the telescopic rod (232) A pressure sensor (52), the pressure sensor (52) is installed inside the cushion block (51), and the pressure sensor (52) is connected to the processor (8). When the cushion block (51) is subjected to a pressure action, the sensitive element inside the pressure sensor (52) will deform, and then an electrical signal is output.
Citation Information
Cited By
Overhead distribution line pole tilt fixing device using detachable and fixable pusher unit
KR102961228B1