Cableway vehicle system

By adopting the design of two cable cars moving simultaneously in the cableway shooting system and combining with the intelligent control system, the stability and stability of the camera equipment in the cableway shooting system is solved, and the effect of efficient loading and safe movement is achieved.

CN223257901UActive Publication Date: 2025-08-22广西城市职业大学
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Patent Information

Application Number
CN202423105225.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-08-22
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

When the span of the existing cable cargo shooting system is large, the stability of the camera equipment is disturbed, and it is impossible to carry too many or too heavy camera equipment smoothly, and oscillation occurs when moving and affecting the shooting effect.

Method used

Two cable cars are respectively arranged on the cable car, connected by connecting rods, and the cable car is controlled to move simultaneously with remote control equipment, and the gimbal plate is installed to carry camera equipment, and the driving device and driven wheel device are used to ensure smooth movement, combining the intelligent control system to achieve synchronous and stable movement of the cable car.

Benefits of technology

It realizes the synchronous and stable movement of the cable car, and can be equipped with camera equipment of any weight to the greatest extent, ensuring camera stability and operational safety, while improving maintenance efficiency and intelligent control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cableway vehicle system which comprises a first cableway assembly, a second cableway assembly, a first cableway vehicle, a second cableway vehicle, a remote control device and a holder plate, the first cableway assembly and the second cableway assembly are arranged in parallel, and the first cableway vehicle and the second cableway vehicle are installed on the first cableway assembly and the second cableway assembly respectively in a sliding mode. The bottom end of the first cableway vehicle is connected with the bottom end of the second cableway vehicle through a cradle head plate, the first cableway vehicle and the second cableway vehicle are electrically connected with remote control equipment, the first cableway vehicle and the second cableway vehicle are fixedly connected through a connecting rod, a cradle head mounting hole is formed in the middle of the cradle head plate, and a camera cradle head is mounted on the cradle head mounting hole. And camera shooting equipment is mounted on the camera shooting holder. According to the utility model, the camera equipment is carried through the holder plate, and the two cableway vehicles synchronously and stably move, so that the camera equipment with any weight can be carried to the maximum extent, the weight of the equipment which can be carried by the cableway vehicles is improved, and the stable operation of the cableway vehicles is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of special shooting in the film and television industry, in particular to a cable car system. Background Art

[0002] The movement of a camera's position and the adjustment of its shooting angle are crucial for capturing motion pictures. Current methods for capturing motion include camera jibs, rail cars, cable cars, and aerial photography from aircraft. Existing cable car systems simply rely on conventional transport cableway technology. This can lead to interference and translational oscillation, particularly over large spans. These factors can disrupt the smoothness of the camera and significantly affect the quality of the shot.

[0003] Chinese patent CN201310188719.8 discloses a T-type two-dimensional cableway camera system, including a cableway system and a camera unit. The cableway system includes a main cableway, a load-bearing pulley, a circulating traction rope, a lifting traction rope and a movable pulley, and a circulating drive box that controls the horizontal and vertical movements of the camera unit respectively. The characteristics are: the circulating drive box that controls the vertical movement of the camera unit is equipped with a counterweight mechanism, the counterweight of the counterweight mechanism is approximately equal to the counterweight of the camera unit, so that the system is in a balanced state when it is lifted; the circulating traction rope includes a tensioning mechanism, the tensioning mechanism includes two fixed pulleys, a movable pulley and a spring, the circulating traction rope passes through the fixed pulley-movable pulley-fixed pulley in sequence, and the movable pulley is fixed to the ground through the spring. This invention patent uses the precise speed of the servo system, especially the control of acceleration, to achieve oscillation-free translation of the suspension system under conditions of large swing lengths, and provides a simplified and flexible manual method for controlling the lifting of the camera. However, this utility model requires the use of a circulating traction rope and a lifting traction rope to move and control the camera unit, and only one tensioning mechanism is used. It is impossible to stably carry the camera equipment, and it is impossible to carry too much or too heavy camera equipment. Utility Model Content

[0004] The main purpose of the present invention is to overcome the defects of the above-mentioned background technology and provide a cable car system. The present invention respectively arranges two cable car on the first cable car assembly and the second cable car assembly, and fixes the two cable car together through a connecting rod, and uses a remote control device to control the movement of the cable car on the cable car to achieve synchronous and smooth movement between the cable car, and a pan-tilt plate is installed between the first cable car and the second cable car, which can carry camera equipment between the two cable car. By synchronously and smoothly moving the two cable car, camera equipment of any weight can be carried to the maximum extent, thereby increasing the weight of equipment that the cable car can carry while ensuring the smooth operation of the cable car.

[0005] To achieve the above-mentioned objectives, the utility model proposes a cable car system, comprising a first cableway assembly, a second cableway assembly, a first cable car, a second cable car, a remote control device and a pan-tilt plate. The first cableway assembly and the second cableway assembly are arranged in parallel, the first cable car and the second cable car are slidably installed on the first cableway assembly and the second cableway assembly respectively, the bottom end of the first cable car is connected to the bottom end of the second cable car through the pan-tilt plate, the first cable car and the second cable car are both electrically connected to the remote control device, the first cable car and the second cable car are fixedly connected by a connecting rod, a pan-tilt mounting hole is provided in the middle of the pan-tilt plate, a camera pan-tilt is installed on the pan-tilt mounting hole, and a camera device is installed on the camera pan-tilt. The first cable car and the second cable car are respectively arranged on the first cable car assembly and the second cable car assembly, the first cable car and the second cable car are connected together by a pan-tilt plate, the first cable car and the second cable car are fixed together by a connecting rod, and the first cable car and the second cable car are controlled to move synchronously by a remote control device, and the camera pan-tilt is installed through the pan-tilt mounting hole on the pan-tilt plate, so that the first cable car and the second cable car can be equipped with camera equipment. By synchronously and smoothly moving the two cable cars, camera equipment of any weight can be carried to the maximum extent, thereby increasing the weight of equipment that the cable car can carry while ensuring the smooth operation of the cable car.

[0006] Furthermore, the first cable car and the second cable car have the same structure. Both the first cable car and the second cable car include a cable car frame, a connecting seat, a battery panel, a drive device and a driven wheel device. The battery panel is installed at the left and right ends of the cable car frame, the connecting seat is fixed to the bottom end of the cable car frame, the drive device is installed on the cable car frame, and manual quick-release rods are provided at both ends of the cable car frame. The driven wheel device is rotatably installed on the manual quick-release rods. By assembling the cable car frame, the connecting seat, the battery panel, the drive device and the driven wheel device into a cable car, and by the driving wheel mounting device and the driven wheel device cooperating with each other, the cable car can move smoothly on the cableway based on the drive device. By using the manual quick-release rods provided at both ends of the cable car frame, the driven wheel device can be quickly replaced, thereby improving maintenance efficiency.

[0007] Furthermore, the driven wheel device includes a driven wheel and a connecting tube, wherein the driven wheel is fixed around the outer surface of the connecting tube, and the connecting tube is rotatably mounted on the manual quick release lever. The driven wheel is fixed around the connecting tube, providing installation conditions for the driven wheel to rotate on the manual quick release lever.

[0008] Furthermore, the manual quick-release lever includes a quick-release fixing rod and a quick-release head, wherein the quick-release head is fixed to one end of the quick-release fixing rod, and a fixing piece is provided at the other end of the quick-release fixing rod. The quick-release fixing rod is fixed to the cable car frame by extending one end of the quick-release fixing piece with the fixing piece into the cable car frame, twisting the quick-release fixing rod with the quick-release head, and rotating the fixing piece.

[0009] Furthermore, the connector is provided with a control circuit board, which is equipped with an electric tilt module, a first processor, an analog-to-digital conversion module, and a first signal transmission module. The analog-to-digital conversion module is electrically connected to the sensor and positioner, the first processor is electrically connected to the drive device via the electric tilt module, and the first processor is electrically connected to the first signal transmission module. The analog-to-digital conversion module converts data from the sensor and positioner into digital information. The first processor processes the converted data and transmits it to the remote control device via the first signal transmission module. The first processor then processes control information transmitted back by the remote control device and controls the electric tilt module based on the control information.

[0010] Furthermore, the first and second cableway assemblies have the same structure, each comprising a load-bearing cable and a support assembly. The support assembly is vertically fixed, and both ends of the load-bearing cable are mounted on the support assembly. The load-bearing cable and the support assembly cooperate with each other to provide a mobile equipment foundation for the cableway vehicle.

[0011] Furthermore, the support assembly includes a load-bearing pulley block, a load-bearing bracket, and a load-bearing cable winch. The load-bearing pulley block is disposed at the top of the load-bearing bracket, and the load-bearing cable is slidably mounted on the load-bearing pulley block and fixedly connected to the load-bearing cable winch. By securing the load-bearing pulley block to the top of the load-bearing bracket, while simultaneously mounting the load-bearing cable on the load-bearing pulley block, and tightening and securing the load-bearing cable via the load-bearing cable winch, the load-bearing cable is prevented from falling due to the load-bearing cable failing to tighten when the cableway vehicle moves on the load-bearing cable, thereby ensuring the safety of the cableway vehicle's movement on the load-bearing cable.

[0012] Furthermore, the remote control device includes a liquid crystal display module, a key module, a second signal transmission module, and a second processor, wherein the second processor is electrically connected to the liquid crystal display module, the key module, and the second signal transmission module, respectively. The second processor receives data information transmitted from the control circuit board via the second signal transmission module, processes the data information, and displays it via the liquid crystal display module. Furthermore, the second processor can process control information from the key module and transmit it to the control circuit board via the second signal transmission module, thereby achieving intelligent control.

[0013] The beneficial effects of the present invention include: two cable car vehicles are respectively arranged on the first cable car assembly and the second cable car assembly, the two cable car vehicles are fixedly connected together by a connecting rod, and a remote control device is used to control the cable car vehicles to move on the cable car, so as to achieve synchronous and smooth movement between the cable car vehicles, and a pan-tilt plate is installed between the first cable car and the second cable car, so that camera equipment can be carried between the two cable car vehicles. By synchronously and smoothly moving the two cable car vehicles, camera equipment of any weight can be carried to the maximum extent, thereby increasing the weight of equipment that the cable car can carry while ensuring the smooth operation of the cable car. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a cable car system in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic structural diagram of a cable car in an embodiment of the present utility model;

[0016] Figure 3 This is a module block diagram of the control circuit board in the embodiment of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of a manual quick-release lever in an embodiment of the present utility model;

[0018] Figure 5 This is a module block diagram of a remote control device in an embodiment of the present utility model;

[0019] Reference numerals: 1 first cableway assembly; 2 second cableway assembly; 3 first cableway car; 4 second cableway car; 5 remote control device; 6 pan / tilt plate; 7 connecting rod; 11 load-bearing cable; 12 support assembly; 13 load-bearing pulley block; 14 load-bearing bracket; 15 load-bearing cable winch; 31 cableway car frame; 32 connecting seat; 33 battery panel; 34 driving device; 35 driven wheel device; 36 manual quick release lever; 37 control circuit board; 351 driven wheel; 352 connecting tube; 361 quick release fixing rod; 362 quick release head; 363 fixing member; 371 electric adjustment module; 372 first processor; 373 sensor; 374 analog-to-digital conversion module; 375 positioner; 376 first signal transmission module; 52 liquid crystal display module; 53 button module; 54 second signal transmission module; 55 second processor; 61 pan / tilt mounting hole; 101 camera pan / tilt; 102 camera device; DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for both fixing and circuit connection.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0024] See also Figure 1 In the embodiment, the invention discloses a first cableway assembly 1, a second cableway assembly 2, a first cableway car 3, a second cableway car 4, a remote control device 5 and a pan-tilt plate 6. The first cableway assembly 1 and the second cableway assembly 2 are arranged in parallel. The first cableway car 3 and the second cableway car 4 are respectively slidably mounted on the first cableway assembly 1 and the second cableway assembly 2. The bottom end of the first car 3 is connected to the bottom end of the second cableway car through the pan-tilt plate 6. The first cableway car 3 and the second cableway car 4 are both electrically connected to the remote control device 5. The first cableway car 3 and the second cableway car 4 are fixedly connected by a connecting rod 7. A pan-tilt mounting hole 6 is provided in the middle of the pan-tilt plate 6. 1, a camera pan / tilt head 101 is mounted on the pan / tilt head mounting hole, and a camera device 102 is mounted on the camera pan / tilt head; the first cableway assembly 1 and the second cableway assembly 2 have the same structure, and both the first cableway assembly 1 and the second cableway assembly 2 include a load-bearing cable 11 and a support assembly 12, the support assembly 12 is vertically fixed, and both ends of the load-bearing cable 11 are respectively mounted on the support assembly 12; the support assembly 12 includes a load-bearing pulley block 13, a load-bearing bracket 14, and a load-bearing cable winch 15, the load-bearing pulley block 13 is provided at the top of the load-bearing bracket 14, and the load-bearing cable 11 is slidably mounted on the load-bearing pulley block 14 and fixedly connected to the load-bearing cable winch 15;

[0025] By sliding the first cable car 3 and the second cable car 4 on the first cableway assembly 1 and the second cableway assembly 2 respectively, the bottom ends of the first cableway car 3 and the second cableway car 4 are connected by the pan-tilt plate 6 and the middle parts are fixedly connected by the connecting rod 7, the first cableway car 3 and the second cableway car 4 can be moved synchronously, and the camera pan-tilt plate 101 is installed through the pan-tilt mounting hole 61 on the pan-tilt plate 6. The camera device 102 can be carried on the bottom surface of the pan-tilt plate 6 through the camera pan-tilt plate 101. By moving the first cableway car 3 and the second cableway car 4 on the first cableway assembly 1 and the second cableway assembly 2, the camera device 102 can be driven to perform mobile shooting, which can avoid the shaking of the camera lens caused by the movement of the cableway cars and ensure the stability of the shooting. At the same time, by synchronously and smoothly moving the first cableway car 3 and the second cableway car 4, the camera device 102 of any weight can be carried to the maximum extent, thereby increasing the weight of the equipment that the cableway car can carry while ensuring the smooth operation of the cableway car.

[0026] By rolling the carrying rope 11 on the carrying pulley block 13, and fixing the carrying pulley block 13 on the top of the carrying bracket 14, the carrying rope 11 and the carrying bracket 14 cooperate with each other to provide a moving channel for the cable car. At the same time, the carrying rope 11 is fixedly connected to the carrying rope winch 15, and the carrying rope can be tightened and fixed by the carrying rope winch to prevent the cable car from falling due to the failure of tightening the carrying rope when the cable car moves on the carrying rope, thereby ensuring the movement safety of the cable car on the carrying rope.

[0027] See also Figure 2 and Figure 4 In the specific example, the first cable car 3 and the second cable car 4 have the same structure. The first cable car 3 and the second cable car 4 both include a cable car frame 31, a connecting seat 32, a battery panel 33, a driving device 34 and a driven wheel device 35. The battery panel 33 is installed at the left and right ends of the cable car frame 31, the connecting seat 32 is fixed to the bottom end of the cable car frame 31, the driving device 34 is installed on the cable car frame 31, and a manual fast stop is provided at both ends of the cable car frame 31. The manual quick-release lever 36 has a driven wheel assembly 35 rotatably mounted on it. The driven wheel assembly 35 includes a driven wheel 351 and a connecting tube 352. The driven wheel 351 is fixed around the outer surface of the connecting tube 352, and the connecting tube 352 is rotatably mounted on the manual quick-release lever 36. The manual quick-release lever 36 includes a quick-release fixing rod 361 and a quick-release head 362. The quick-release head 362 is fixed to one end of the quick-release fixing rod 361. The other end of the quick-release fixing rod 361 is provided with a fixing member 363.

[0028] The driving device 34 and the driven wheel device 35 cooperate with each other, so that the cable car can move smoothly on the cableway based on the driving device, ensuring the movement stability of the cable car. By arranging the connecting seat 32 and the battery plate 33 on the cable car frame 31, the cable car can be equipped with a pan-tilt plate through the connecting seat 32, providing installation conditions for the cable car to carry camera equipment. At the same time, the battery plate 33 can be used to directly carry batteries on the cable car, so that the cable car can achieve self-sufficient power supply, improving the cable car In order to improve portability, the quick-release fixing rod 361 is fixed at both ends of the cable car frame 31, and the fixing piece 363 at one end of the quick-release fixing rod 361 is fixedly connected to the cable car frame 31 by twisting the quick-release head 362 at one end of the quick-release fixing rod. At the same time, the driven wheel 351 is rotatably mounted on the quick-release fixing rod 361 through the connecting tube 352. When the driven wheel 351 is damaged, the quick-release fixing rod 361 can be directly pulled out to replace the driven wheel 351 and the connecting tube 352, thereby improving maintenance efficiency.

[0029] See also Figure 3 In the specific example disclosed, a control circuit board 37 is disposed in the connection base 32. An electrical adjustment module 371, a first processor 372, an analog-to-digital conversion module 374, and a first signal transmission module 376 are mounted on the control circuit board 37. The analog-to-digital conversion module 374 is electrically connected to the sensor 373 and the positioner 375. The first processor 372 is electrically connected to the drive device 34 via the electrical adjustment module 371. The first processor 372 is electrically connected to the first signal transmission module 376.

[0030] The acceleration, real-time speed, and position data of the cable car are detected and collected by the sensor 373 and the locator 375. The data is converted by the analog-to-digital conversion module and then transmitted to the first processor 372 for processing. The first processor 372 transmits the processed data to the remote control device 5 via the first signal transmission module 376, thereby remotely monitoring various data of the cable car and strengthening the control of the cable car. The analog-to-digital conversion module 374 is electrically connected to the first processor 372, enabling the first processor 372 to obtain information from the sensor 373 and the locator 375, thereby strengthening the control of the onboard camera equipment. The electric adjustment module 371 is electrically connected to the first sensor 372 and can receive and transmit control information to the first processor 372 via the first signal transmission module 376. The first controller 372 cooperates with the electric adjustment module 371 to control and change the output power of the drive device 34, thereby adjusting the moving speed of the cable car on the support cable 11, realizing remote speed control of the cable car and enhancing the intelligence of the cable car.

[0031] See also Figure 5In the specific example disclosed, the remote control device 5 includes a liquid crystal display module 52, a key module 53, a second signal transmission module 54, and a second processor 55. The second processor 55 is electrically connected to the liquid crystal display module 52, the key module 53, and the second signal transmission module 54 respectively. The second signal transmission module 54 receives various cable car data from the first signal transmission module 376, and after being processed by the second processor 55, the data is transmitted to the liquid crystal display module 52 for display, so that various cable car data can be intuitively understood and the control of the cable car is strengthened. The key module 53 outputs control instructions to the second processor 55. After the second processor 55 processes the control instructions, the control instructions are transmitted to the control circuit board 37 through the second signal transmission module 54, thereby realizing remote control of the cable car and enhancing the intelligence of the cable car.

[0032] The above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be considered to belong to the scope of protection of the present invention. In the description of this specification, the reference terms "one embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples" or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the scope of protection of the patent application.

Claims

1. A cable car system, characterized in that: The invention comprises a first cableway assembly, a second cableway assembly, a first cableway car, a second cableway car, a remote control device and a pan-tilt plate. The first cableway assembly and the second cableway assembly are arranged in parallel. The first cableway car and the second cableway car are slidingly installed on the first cableway assembly and the second cableway assembly respectively. The bottom end of the first cableway car is connected to the bottom end of the second cableway car through the pan-tilt plate. The first cableway car and the second cableway car are both electrically connected to the remote control device. The first cableway car and the second cableway car are fixedly connected by a connecting rod. A pan-tilt mounting hole is provided in the middle of the pan-tilt plate. A camera pan-tilt is installed on the pan-tilt mounting hole. A camera device is installed on the camera pan-tilt.

2. The cable car system according to claim 1, wherein: The first cable car and the second cable car have the same structure. They both include a cable car frame, a connecting seat, a battery panel, a driving device and a driven wheel device. The battery panel is installed at the left and right ends of the cable car frame, the connecting seat is fixed to the bottom end of the cable car frame, the driving device is installed on the cable car frame, and manual quick-release rods are provided at both ends of the cable car frame. The driven wheel device is rotatably installed on the manual quick-release rods.

3. The cable car system according to claim 2, wherein: The driven wheel device includes a driven wheel and a connecting cylinder. The driven wheel is fixed around the outer surface of the connecting cylinder, and the connecting cylinder is rotatably mounted on the manual quick-release rod.

4. The cable car system according to claim 3, wherein: The manual quick-release rod comprises a quick-release fixing rod and a quick-release head. The quick-release head is fixed to one end of the quick-release fixing rod, and a fixing piece is provided at the other end of the quick-release fixing rod.

5. The cable car system according to claim 4, wherein: A control circuit board is provided in the connecting socket, and an electric adjustment module, a first processor, an analog-to-digital conversion module and a first signal transmission module are provided on the control circuit board. The analog-to-digital conversion module is electrically connected to the sensor and the locator, the first processor is electrically connected to the driving device through the electric adjustment module, and the first processor is electrically connected to the first signal transmission module.

6. The cable car system according to claim 1, wherein: The first cableway assembly and the second cableway assembly have the same structure. Both the first cableway assembly and the second cableway assembly include a load-bearing cable and a support assembly. The support assembly is vertically fixed, and both ends of the load-bearing cable are respectively installed on the support assembly.

7. The cable car system according to claim 6, wherein: The support assembly includes a load-bearing pulley block, a load-bearing bracket and a load-bearing cable winch. The load-bearing pulley block is arranged on the top of the load-bearing bracket. The load-bearing cable is slidably mounted on the load-bearing pulley block and fixedly connected to the load-bearing cable winch.

8. The cable car system according to claim 1, wherein: The remote control device includes a liquid crystal display module, a key module, a second signal transmission module and a second processor, wherein the second processor is electrically connected to the liquid crystal display module, the key module and the second signal transmission module respectively.

Citation Information

Patent Citations

  • T-shaped two-dimensional cableway camera system

    CN103248826B