Secure communication device and system thereof
Through the horizontal and vertical steering mechanism driving the camera, combined with the instructions of the monitoring module and the control center, the problem that the patrol camera cannot follow suspicious people in real time is solved, real-time monitoring and secure communication are achieved.
Patent Information
- Application Number
- CN202510654331.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-08-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The inspection camera cannot follow suspicious characters in real time, and there are safety hazards when patrolling back and forth.
The horizontal steering mechanism and the vertical steering mechanism are adopted to drive the horizontal and vertical steering of the camera body through the driving mechanism, and combined with the command generation and execution of the monitoring module and the control center, real-time follow-up of the camera is achieved.
Real-time monitoring of suspicious characters by the camera is realized, avoiding surveillance loss and improving communication security.
Smart Images
Figure CN120402748A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of secure communication, and particularly to a secure communication device and its system. Background Art
[0002] A secure communication device is a device or system used to ensure the security, reliability, and non - theft or tampering of information during transmission. With the popularization of network cameras, in the field of video surveillance, in order to avoid data leakage, encryption technology is generally used to encrypt the data transmission between cameras and cloud platforms to ensure data security.
[0003] Existing video surveillance fields can monitor fixed areas, and patrolling cameras can monitor specific areas and patrol back and forth. When a suspicious person or other freely moving object is detected by video surveillance, the patrolling camera cannot follow the suspicious person in real time, and the suspicious person will be lost during the round - trip patrol, posing a security risk. For this reason, we propose a secure communication device and its system. Summary of the Invention
[0004] The purpose of the present invention is to provide a secure communication device and its system to solve the problem that the patrolling camera cannot follow the suspicious person in real time, and the suspicious person will be lost during the round - trip patrol, posing a security risk as mentioned in the above background art.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A secure communication device and its system, including a camera body, a support column is arranged below the camera body, the support column bears the camera body, the bottom of the support column is rotatably connected to a support platform, and one end of the support platform is fixed to the wall; A horizontal steering mechanism, which is located between the support column and the support platform, and the horizontal steering mechanism can drive the camera body to turn horizontally; A vertical steering mechanism, which is located between the support column and the camera body, and the vertical steering mechanism can drive the camera body to turn vertically; A driving mechanism, which is located inside the support column, and the driving mechanism can provide steering power for the horizontal steering mechanism and the vertical steering mechanism when the camera body monitors a suspicious person.
[0006] Among them, the driving mechanism includes a support frame fixedly connected to the bottom of the inner wall of the support column, a driving motor is fixedly connected to the upper end of the support frame, one end of the driving motor is provided with a motor output shaft, a plurality of first teeth are fixedly connected to the outer wall of the motor output shaft, each first tooth is arranged in a circular pattern, and a hydraulic component capable of driving the horizontal steering mechanism to rotate is provided between the motor output shaft and the horizontal steering mechanism.
[0007] Among them, the hydraulic component includes a hydraulic cylinder fixedly connected to the side surface of the inner wall of the support column. A hydraulic rod is slidably connected inside the hydraulic cylinder. A hydraulic column is fixedly connected to the end of the hydraulic rod. A first gear is rotatably connected to the periphery of the hydraulic column, and the first gear meshes with the first tooth.
[0008] Among them, the horizontal steering mechanism includes a rotating rod fixedly connected to the bottom of the inner wall of the support column. The rotating rod is located at the end of the output shaft of the motor away from the driving motor. A second gear is rotatably connected to the periphery of the rotating rod. A third gear is fixedly connected to one end of the second gear close to the first gear, and the third gear meshes with the first gear.
[0009] Among them, the size of the third gear is smaller than that of the first gear and the second gear.
[0010] Among them, a gear groove is opened at the bottom of the support column. A gear rod is fixedly connected to the inner wall of the gear groove. A fourth gear is rotatably connected to the periphery of the gear rod. The upper end of the fourth gear meshes with the second gear. The lower end of the fourth gear is located outside the support column. A plurality of second teeth are fixedly connected to the upper end of the support platform. Each second tooth is arranged in a ring shape, and the fourth gear meshes with the second teeth.
[0011] Among them, the vertical steering mechanism includes a support ring arranged inside the support column. Both ends of the support ring are fixedly connected to the inner wall of the support column. The support ring is located around the output shaft of the motor. A sliding groove is opened at one end of the support ring away from the driving motor. An electric telescopic rod is fixedly connected to the top of the inner wall of the sliding groove. A sliding block rod is fixedly connected to the end of the electric telescopic rod away from the inner wall of the sliding groove. The sliding block rod is located inside the sliding groove and is slidably connected to the sliding groove. One end of the sliding block rod is fixedly connected to a fixed rod, and the fixed rod is located outside the support ring.
[0012] Among them, a semi-gear is fixedly connected to the bottom of the camera body. A positioning rod is fixedly connected to the inner wall of the support column. A transmission gear is fixedly connected to the outer wall of the positioning rod. An inclined gear one is fixedly connected to one end of the transmission gear. The inclined gear one is located around the positioning rod and is rotatably connected to the positioning rod. A positioning plate is fixedly connected to the inner wall of the support column. A transmission rod is rotatably connected to the inside of the positioning plate. An inclined gear two is fixedly connected to one end of the transmission rod close to the inclined gear one, and the inclined gear two meshes with the inclined gear one.
[0013] Among them, a winch is rotatably connected to the periphery of the fixed rod. A limiting plate is fixedly connected to the end of the fixed rod away from the sliding block rod. A belt is sleeved on the periphery of the winch, and the other end of the belt is sleeved on the periphery of the transmission rod.
[0014] Among them, the monitoring module is used to monitor suspicious persons in the photographed image of the camera body, and send the movement trend of the suspicious persons in the photographed image to the control center through the signal sending unit; The control center is used to receive through the communication unit and analyze the movement trend of the suspicious persons in the photographed image monitored by the monitoring module, and generate an instruction through the instruction generation unit according to the movement direction of the suspicious persons; An execution module is used to receive instructions sent by the control center through the signal receiving unit, and send a steering instruction to the horizontal steering unit or the vertical steering unit according to the instruction; The horizontal steering unit is used to execute the horizontal steering command issued by the execution module. When the monitoring module detects that a suspicious person is moving toward the side of the camera main body photographic image, it drives the hydraulic unit to make the support column turn horizontally; The vertical steering unit is used to execute the vertical steering instruction issued by the execution module. When the monitoring module detects that a suspicious person moves toward the top or bottom of the camera main body photographic image, it drives the electric telescopic rod unit to make the camera main body vertically rotate.
[0015] The present invention has at least the following beneficial effects: When the present invention is in use, it can capture images through the camera body and provide steering power to the horizontal steering mechanism and the vertical steering mechanism through the driving mechanism according to the movement trend of the suspicious person in the image. When the horizontal steering mechanism and the vertical steering mechanism are turned, they can monitor the suspicious person in real time, avoid the loss of surveillance by the camera body, and better ensure the security of communication. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the camera of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the support column of the present invention; Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle; Figure 4 This is a schematic diagram of the overall structure of the hydraulic components of the present invention; Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle B area; Figure 6 This is a schematic diagram of the cross-sectional structure of the bottom of the support column of the present invention; Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle C area; Figure 8 This is a schematic diagram of the upward-looking structure of the camera of the present invention; Figure 9 for Figure 8 Schematic diagram of the enlarged structure of the middle D area; Figure 10 This is a schematic diagram of the overall structure of the support ring of the present invention; Figure 11 for Figure 10 Schematic diagram of the enlarged structure of the middle E area; Figure 12 This is a schematic diagram of a partial cross-sectional structure of a limiting plate of the present invention; Figure 13 for Figure 12Schematic diagram of the enlarged structure in Area F; Figure 14 Schematic diagram of the semi - gear structure of the present invention; Figure 15 is Figure 14 Schematic diagram of the enlarged structure in Area G; Figure 16 Schematic diagram of the secure communication system of the present invention.
[0017] In the figure: 1. Camera main body; 11. Support column; 12. Support platform; 13. Gear groove; 14. Gear rod; 15. Gear four; 16. Tooth two; 2. Horizontal steering mechanism; 21. Rotating rod; 22. Gear two; 23. Gear three; 3. Vertical steering mechanism; 31. Support ring; 32. Sliding groove; 33. Electric telescopic rod; 34. Sliding block; 35. Fixed rod; 36. Winch; 37. Limiting plate; 38. Belt; 4. Driving mechanism; 41. Support frame; 42. Driving motor; 43. Motor output shaft; 44. Tooth one; 5. Hydraulic component; 51. Hydraulic cylinder; 52. Hydraulic rod; 53. Hydraulic column; 54. Gear one; 6. Semi - gear; 61. Positioning rod; 62. Transmission gear; 63. Helical gear one; 64. Positioning plate; 65. Transmission rod; 66. Helical gear two. Detailed implementation manners
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without any creative work belong to the scope of protection of the present invention.
[0019] Embodiment 1 Please refer to Figure 1-15 , the present invention provides a technical solution: A secure communication device and its system, including a camera main body 1, a support column 11 is provided below the camera main body 1, the support column 11 bears the camera main body 1, the bottom of the support column 11 is rotatably connected to a support platform 12, and one end of the support platform 12 is fixed to the wall; A horizontal steering mechanism 2, the horizontal steering mechanism 2 is located between the support column 11 and the support platform 12, and the horizontal steering mechanism 2 can drive the camera main body 1 to turn horizontally; A vertical steering mechanism 3, the vertical steering mechanism 3 is located between the support column 11 and the camera main body 1, and the vertical steering mechanism 3 can drive the camera main body 1 to turn vertically; A driving mechanism 4, the driving mechanism 4 is located inside the support column 11, and the driving mechanism 4 can provide turning power for the horizontal steering mechanism 2 and the vertical steering mechanism 3 when the camera main body 1 monitors suspicious persons; When in use, the present invention can capture images through the camera body 1 and provide steering power to the horizontal steering mechanism 2 and the vertical steering mechanism 3 according to the movement trend of suspicious persons inside the images. When the horizontal steering mechanism 2 and the vertical steering mechanism 3 turn, they can monitor suspicious persons in real time, avoid the loss of monitoring by the camera body 1, and provide more guarantee for communication security.
[0020] The driving mechanism 4 includes a support frame 41 fixedly connected to the bottom of the inner wall of the support column 11. The upper end of the support frame 41 is fixedly connected with a driving motor 42. One end of the driving motor 42 is provided with a motor output shaft 43. A plurality of first teeth 44 are fixedly connected to the outer wall of the motor output shaft 43. Each first tooth 44 is arranged in a ring. When the camera body 1 monitors a suspicious person and the suspicious person moves towards the edge of the photographic image of the camera body 1, by transmitting the photographic image of the camera body 1, a start signal is provided for the driving motor 42. At this time, the driving motor 42 starts, the motor output shaft 43 at the end of the driving motor 42 rotates, and at the same time drives the first teeth 44 around the motor output shaft 43 to rotate. When the first teeth 44 rotate, they can drive the support column 11 to turn horizontally through the horizontal steering mechanism 2.
[0021] A hydraulic component 5 is provided between the motor output shaft 43 and the horizontal steering mechanism 2 to drive the horizontal steering mechanism 2 to rotate. The hydraulic component 5 includes a hydraulic cylinder 51 fixedly connected to the side of the inner wall of the support column 11. A hydraulic rod 52 is slidably connected inside the hydraulic cylinder 51. The end of the hydraulic rod 52 is fixedly connected with a hydraulic column 53. A first gear 54 is rotatably connected to the periphery of the hydraulic column 53. The first gear 54 meshes with the first teeth 44. When the motor output shaft 43 rotates and the suspicious person moves towards the side of the photographic image of the camera body 1, the hydraulic cylinder 51 starts to drive the hydraulic rod 52 to move. When the hydraulic rod 52 slides, it drives the first gear 54 to move, so that the first gear 54 meshes with the first teeth 44. At this time, the motor output shaft 43 drives the first gear 54 to rotate through the first teeth 44. The first gear 54 can drive the support column 11 to rotate horizontally through the horizontal steering mechanism 2, and can realize the support column 11 driving the camera body 1 to rotate horizontally to track suspicious persons, which is more convenient to use.
[0022] The horizontal steering mechanism 2 includes a rotating rod 21 fixedly connected to the bottom of the inner wall of the support column 11. The rotating rod 21 is located at the end of the output shaft 43 of the motor away from the driving motor 42. A second gear 22 is rotatably connected to the periphery of the rotating rod 21. A third gear 23 is fixedly connected to one end of the second gear 22 close to the first gear 54. The third gear 23 meshes with the first gear 54. The size of the third gear 23 is smaller than that of the first gear 54 and the second gear 22. A gear groove 13 is formed at the bottom of the support column 11. A gear rod 14 is fixedly connected to the inner wall of the gear groove 13. A fourth gear 15 is rotatably connected to the periphery of the gear rod 14. The upper end of the fourth gear 15 meshes with the second gear 22. The lower end of the fourth gear 15 is located outside the support column 11. A plurality of second teeth 16 are fixedly connected to the upper end of the support platform 12. Each second tooth 16 is arranged in a ring shape. The fourth gear 15 meshes with the second teeth 16; When the first gear 54 meshes with the first teeth 44, the first gear 54 meshes with the third gear 23. At this time, the first gear 54 can drive the third gear 23 to mesh. Since the second gear 22 is fixedly connected to the third gear 23, and the size of the third gear 23 is smaller than that of the first gear 54 and the second gear 22, when the first gear 54 rotates, it can drive the third gear 23 to rotate. At this time, the second gear 22 rotates following the third gear 23, and the rotation speed of the second gear 22 is relatively small. When the second gear 22 rotates, it can drive the fourth gear 15 to rotate. The fourth gear 15 meshes with the second teeth 16 and rotates above the second teeth 16. Since one end of the support platform 12 is fixed to the wall, when the fourth gear 15 rotates, it can drive the support column 11 to horizontally rotate above the support platform 12. Since the rotation speed of the second gear 22 is relatively small, at this time, the support column 11 drives the camera body 1 to slowly horizontally turn, which is convenient for the camera body 1 to monitor suspicious persons and the slowly turning camera body 1 is not easily detected by suspicious persons, ensuring the safety of the communication device and the communication apparatus.
[0023] The vertical steering mechanism 3 includes a support ring 31 arranged inside the support column 11. Both ends of the support ring 31 are fixedly connected to the inner wall of the support column 11. The support ring 31 is located around the output shaft 43 of the motor. A sliding groove 32 is formed at one end of the support ring 31 away from the driving motor 42. An electric telescopic rod 33 is fixedly connected to the top of the inner wall of the sliding groove 32. One end of the electric telescopic rod 33 away from the inner wall of the sliding groove 32 is fixedly connected to a sliding block 34. The sliding block 34 is located inside the sliding groove 32 and is slidably connected to the sliding groove 32. One end of the sliding block 34 is fixedly connected to a fixing rod 35. The fixing rod 35 is located outside the support ring 31; A winch 36 is rotatably connected to the periphery of the fixing rod 35. A limiting plate 37 is fixedly connected to one end of the fixing rod 35 away from the sliding block 34. A belt 38 is sleeved around the winch 36. The other end of the belt 38 is sleeved around the periphery of the transmission rod 65; When a suspicious person moves at the top and bottom of the captured image of the camera body 1, the electric telescopic rod 33 starts to drive the sliding block 34 to slide inside the sliding groove 32. At this time, the sliding block 34 drives the fixing rod 35 to move towards one end of the motor output shaft 43. When the winch 36 around the fixing rod 35 approaches the motor output shaft 43, the belt 38 around the winch 36 closely adheres to the motor output shaft 43. When the motor output shaft 43 rotates, it can drive the belt 38 to rotate. At this time, the belt 38 can drive the camera body 1 to vertically turn through the vertical steering mechanism 3, facilitating the camera body 1 to monitor the suspicious person.
[0024] A semi-gear 6 is fixedly connected to the bottom of the camera body 1. A positioning rod 61 is fixedly connected to the inner wall of the support column 11. A transmission gear 62 is fixedly connected to the outer wall of the positioning rod 61. One end of the transmission gear 62 is fixedly connected to a first helical gear 63. The first helical gear 63 is located around the positioning rod 61 and is rotatably connected to the positioning rod 61. A positioning plate 64 is fixedly connected to the inner wall of the support column 11. A transmission rod 65 is rotatably connected inside the positioning plate 64. A second helical gear 66 is fixedly connected to one end of the transmission rod 65 close to the first helical gear 63. The second helical gear 66 meshes with the first helical gear 63. When the belt 38 closely adheres to the motor output shaft 43, it can drive the winch 36 to rotate around the fixing rod 35. At the same time, the belt 38 drives the transmission rod 65 to rotate inside the positioning plate 64. When the transmission rod 65 rotates, it can drive the first helical gear 63 to rotate through the second helical gear 66. At the same time, the first helical gear 63 drives the transmission gear 62 to rotate around the positioning rod 61. The transmission gear 62 drives the semi-gear 6 at the bottom of the camera body 1 to rotate. Since the size of the semi-gear 6 is larger than that of the transmission gear 62, the camera body 1 can slowly vertically turn. Its working principle is the same as that of horizontal turning and will not be elaborated here. The camera body 1 can cooperate with the horizontal steering mechanism 2 and the vertical steering mechanism 3 to monitor the suspicious person in the captured image in real time, making it safer to use.
[0025] Embodiment 2 Please refer to Figure 16 , a monitoring module, which is used to monitor the suspicious person inside the captured image of the camera body 1, and send the movement trend of the suspicious person in the captured image to the control center through the signal sending unit; A control center, which is used to receive through the communication unit and analyze the movement trend of the suspicious person in the captured image monitored by the monitoring module, and generate an instruction through the instruction generation unit according to the movement direction of the suspicious person; When a suspicious person moves towards both sides of the captured image of the monitoring camera body 1, the captured image sends a signal to the communication unit through the movement trend of the suspicious person in the internal picture. After the control center receives and analyzes the signal, it sends a horizontal steering instruction to the horizontal steering unit, so that the monitoring camera body 1 horizontally turns through the horizontal steering mechanism 2, making the suspicious person always located in the center of the captured image; An execution module, configured to receive an instruction sent by a control center through a signal receiving unit, and send a steering instruction to a horizontal steering unit or a vertical steering unit according to the instruction; A horizontal steering unit, configured to execute the horizontal steering instruction issued by the execution module, and when the monitoring module monitors that a suspicious person moves towards the side of the photographic image of the camera body 1, drive a hydraulic unit to horizontally steer the support column 11; A vertical steering unit, configured to execute the vertical steering instruction issued by the execution module, and when the monitoring module monitors that a suspicious person moves towards the top or bottom of the photographic image of the camera body 1, drive an electric telescopic rod 33 unit to vertically steer the camera body 1; When a suspicious person moves towards the top or bottom of the photographic image of the monitoring camera body 1, the photographic image sends a signal to the communication unit through the moving trend of the suspicious person in the internal picture. After the control center receives and analyzes the signal, it sends a vertical steering instruction to the vertical steering unit, so that the monitoring camera body 1 vertically steers through the vertical steering mechanism 3, so as to ensure that the photographic image of the monitoring camera body 1 always shows the suspicious person.
[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A security communication device, comprising: A camera body (1), a support column (11) is arranged below the camera body (1), the support column (11) bears the camera body (1), the bottom of the support column (11) is rotatably connected to a support platform (12), and one end of the support platform (12) is fixed to a wall; Characterized in that: it further comprises: A horizontal steering mechanism (2), the horizontal steering mechanism (2) is located between the support column (11) and the support platform (12), and the horizontal steering mechanism (2) can drive the camera body (1) to horizontally turn; A vertical steering mechanism (3), the vertical steering mechanism (3) is located between the support column (11) and the camera body (1), and the vertical steering mechanism (3) can drive the camera body (1) to vertically turn; A driving mechanism (4), the driving mechanism (4) is located inside the support column (11), and the driving mechanism (4) can provide steering power for the horizontal steering mechanism (2) and the vertical steering mechanism (3) when the camera body (1) monitors suspicious persons.
2. The secure communication device according to claim 1, wherein: The driving mechanism (4) includes a support frame (41) fixedly connected to the bottom of the inner wall of the support column (11), a driving motor (42) is fixedly connected to the upper end of the support frame (41), one end of the driving motor (42) is provided with a motor output shaft (43), and a plurality of first teeth (44) are fixedly connected to the outer wall of the motor output shaft (43), each of the first teeth (44) is arranged in a ring, and a hydraulic component (5) capable of driving the horizontal steering mechanism (2) to rotate is provided between the motor output shaft (43) and the horizontal steering mechanism (2).
3. The secure communication device according to claim 2, characterized in that: The hydraulic component (5) includes a hydraulic cylinder (51) fixedly connected to the side of the inner wall of the support column (11), a hydraulic rod (52) is slidably connected inside the hydraulic cylinder (51), a hydraulic column (53) is fixedly connected to the end of the hydraulic rod (52), a first gear (54) is rotatably connected to the periphery of the hydraulic column (53), and the first gear (54) meshes with the first teeth (44).
4. The secure communication device according to claim 3, wherein: The horizontal steering mechanism (2) includes a rotating rod (21) fixedly connected to the bottom of the inner wall of the support column (11), the rotating rod (21) is located at the end of the motor output shaft (43) away from the driving motor (42), a second gear (22) is rotatably connected to the periphery of the rotating rod (21), a third gear (23) is fixedly connected to one end of the second gear (22) close to the first gear (54), and the third gear (23) meshes with the first gear (54).
5. The secure communication device according to claim 4, wherein: The size of the third gear (23) is smaller than that of the first gear (54) and the second gear (22).
6. The secure communication device according to claim 4, wherein: A gear groove (13) is opened at the bottom of the support column (11), a gear rod (14) is fixedly connected to the inner wall of the gear groove (13), a fourth gear (15) is rotatably connected to the periphery of the gear rod (14), the upper end of the fourth gear (15) meshes with the second gear (22), the lower end of the fourth gear (15) is located outside the support column (11), and a plurality of second teeth (16) are fixedly connected to the upper end of the support platform (12), each of the second teeth (16) is arranged in a ring, and the fourth gear (15) meshes with the second teeth (16).
7. The secure communication device according to claim 2, characterized in that: The vertical steering mechanism (3) includes a support ring (31) disposed inside a support column (11). Both ends of the support ring (31) are fixedly connected to the inner wall of the support column (11). The support ring (31) is located around the output shaft (43) of the motor. A sliding groove (32) is formed at one end of the support ring (31) away from the drive motor (42). A telescopic electric rod (33) is fixedly connected to the top of the inner wall of the sliding groove (32). One end of the telescopic electric rod (33) away from the inner wall of the sliding groove (32) is fixedly connected to a sliding block (34). The sliding block (34) is located inside the sliding groove (32) and is slidably connected to the sliding groove (32). One end of the sliding block (34) is fixedly connected to a fixed rod (35). The fixed rod (35) is located outside the support ring (31).
8. The secure communication device according to claim 1, wherein: A semi-gear (6) is fixedly connected to the bottom of the camera body (1). A positioning rod (61) is fixedly connected to the inner wall of the support column (11). A transmission gear (62) is fixedly connected to the outer wall of the positioning rod (61). One end of the transmission gear (62) is fixedly connected to a first helical gear (63). The first helical gear (63) is located around the positioning rod (61) and is rotatably connected to the positioning rod (61). A positioning plate (64) is fixedly connected to the inner wall of the support column (11). A transmission rod (65) is rotatably connected inside the positioning plate (64). A second helical gear (66) is fixedly connected to one end of the transmission rod (65) close to the first helical gear (63). The second helical gear (66) meshes with the first helical gear (63).
9. The secure communication device according to claim 7, characterized in that: A winch (36) is rotatably connected around the fixed rod (35). A limiting plate (37) is fixedly connected to one end of the fixed rod (35) away from the sliding block (34). A belt (38) is sleeved around the winch (36). The other end of the belt (38) is sleeved around the transmission rod (65).
10. A secure communication system, which is used in cooperation with a secure communication device according to any one of claims 1-9, characterized in that: A monitoring module, which is used to monitor suspicious persons in the photographed image of the camera body (1), and send the movement trend of the suspicious persons in the photographed image to the control center through a signal sending unit; A control center, which is used to receive through a communication unit and analyze the movement trend of the suspicious persons in the photographed image monitored by the monitoring module through a signal analysis unit, and generate an instruction through an instruction generation unit according to the movement direction of the suspicious persons; An execution module, which is used to receive the instruction sent by the control center through a signal receiving unit, and send a steering instruction to the horizontal steering unit or the vertical steering unit according to the instruction; A horizontal steering unit, which is used to execute the horizontal steering instruction issued by the execution module. When the monitoring module monitors that the suspicious person moves towards the side of the photographed image of the camera body (1), it drives a hydraulic unit to horizontally steer the support column (11); A vertical steering unit, which is used to execute the vertical steering instruction issued by the execution module. When the monitoring module monitors that the suspicious person moves towards the top or bottom of the photographed image of the camera body (1), it drives a telescopic electric rod (33) unit to vertically steer the camera body (1).