Rail transit safety monitoring device

Abstract

The invention relates to a closed circuit television system, namely a system in which television signals are not broadcast, in particular to a rail transit safety monitoring device. The rail transit safety monitoring device comprises an equipment fixing outsole used for being fixedly installed in the external environment, a supporting arm structure is installed on the equipment fixing outsole, the end, away from the equipment fixing outsole, of the supporting arm structure is connected with a monitoring shell, and the monitoring shell is of a hollow columnar structure; a plurality of cameras are installed on the side wall of the monitoring shell in the circumferential direction to serve as sampling ends to cover a monitoring area in the 360-degree direction of the periphery of the monitoring shell, a central processing device is installed in the monitoring shell, all the cameras are connected to the central processing device, and a signal transmitter is installed on the central processing device to be used for transmitting signals to a host. By means of the integrated design, real-time dynamic monitoring of a monitoring area can be achieved, various security and protection functions are compatible, and meanwhile the cost and difficulty of installation and maintenance are reduced.

Description

Technical Field

[0001] The invention relates to a closed-circuit television system, that is, a system in which television signals are not broadcast, and in particular to a rail transit safety monitoring device. Background Art

[0002] Rail transit system is an important part of modern urban transportation. It has the advantages of large capacity, high speed, punctuality, environmental protection and safety. It is of great significance to alleviate urban traffic congestion, improve urban environment and promote urban economic development. Rail safety is related to the safety of people's lives and property, and the monitoring system is one of the most widely used systems in security systems. The functions of the monitoring system include platform boundary warning, fire warning and warning of the ground protection area corresponding to the underground track.

[0003] In order to provide early warning for various possible situations, sufficient monitoring devices need to be deployed to ensure complete coverage of the monitoring site. The current monitoring equipment usually uses one or more unidirectional sampling terminals and periodic polling to achieve multi-angle monitoring without blind spots. If all monitoring ranges need to be covered in real time, multiple devices need to cooperate, which is relatively complicated. In addition, fire warnings often require manual identification or smoke alarm systems, resulting in many false alarms and difficult identification. Summary of the invention

[0004] The object of the present invention is to provide a rail transit safety monitoring device to solve the problem that the existing monitoring device cannot monitor the inspection area in real time and comprehensively and requires the cooperation of multiple sensors.

[0005] A rail transit safety monitoring device includes an equipment fixing base for fixed installation in an external environment, an arm structure is installed on the equipment fixing base, and a monitoring shell is connected to the end of the arm structure away from the equipment fixing base. The monitoring shell is a hollow cylindrical structure, and a plurality of cameras are installed circumferentially on the side wall of the monitoring shell as sampling ends to cover the monitoring area in a 360° direction around the monitoring shell. A central processing unit is installed in the monitoring shell, and each camera is connected to the central processing unit. A signal transmitter is installed on the central processing unit for transmitting signals to a host.

[0006] Furthermore, the camera is embedded in the monitoring housing.

[0007] Furthermore, the outer contour of the monitoring shell is a regular prism, and the cameras are distributed on various planes of the monitoring shell.

[0008] Furthermore, an inspection window is detachably connected to the monitoring housing.

[0009] Furthermore, there is a horizontally arranged bottom plate inside the monitoring shell, and the central processing unit is detachably installed on the bottom plate of the monitoring shell. Two "L"-shaped limit blocks are installed perpendicular to the bottom plate at the position where the central processing unit diagonally contacts the bottom plate to limit the position of the central processing unit.

[0010] Furthermore, one of the limit blocks is arranged close to the inspection window and adopts a split structure, which is divided into a limit bottom plate and a limit top plate. An embedded sliding tooth is installed between the limit bottom plate and the limit top plate, and an adjustment button corresponding to the embedded sliding tooth is provided on the limit bottom plate.

[0011] Furthermore, a rotating bottom column is installed at the upper end of the monitoring shell, the rotating bottom column is rotatably connected to a rotating shaft, the rotating shaft is rotatably connected to a rotating top column, and the rotating top column is fixedly connected to a support arm structure.

[0012] Furthermore, the support arm structure includes a fixed block for fixedly connecting to the monitoring shell, the end of the fixed block away from the monitoring shell is rotatably connected to a primary support arm, the end of the primary support arm away from the fixed block is rotatably connected to a secondary support arm, and the end of the secondary support arm away from the primary support arm is fixedly connected to a device fixing base.

[0013] Furthermore, the location where the device is fixedly connected to the external environment is a mounting substrate, so that the mounting method can be changed by replacing the mounting substrate.

[0014] Furthermore, the outer wall of the shell is provided with a nighttime fill light that cooperates with the corresponding camera.

[0015] Beneficial effects: The present invention is an improved invention. The rail transit safety monitoring device of the present invention includes a device fixing base for fixed installation in an external environment, an arm structure is installed on the device fixing base for connecting the monitoring structure, and the end of the arm structure away from the device fixing base is connected to a monitoring shell, and the monitoring shell is a hollow columnar structure, which can provide a higher monitoring viewing angle as a base of the sampling end, and multiple cameras are installed along the circumference of the side wall of the monitoring shell as sampling ends to cover the monitoring area in the 360° direction around the monitoring shell. Multiple sampling ends in different directions are installed on the same monitoring device to realize real-time dynamic monitoring of the monitoring area, which reduces the installation cost and difficulty, and facilitates subsequent maintenance. A central processing unit is installed in the monitoring shell, and each camera is connected to the central processing unit. A signal transmitter is installed on the central processing unit for transmitting signals to the host. Through computer vision recognition, the integration of multiple functions is realized, the cost of the security system is reduced, and the manpower demand is reduced. The integrated design can realize real-time dynamic monitoring of the monitoring area, and is compatible with multiple security functions, while reducing the cost and difficulty of installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the structure of an embodiment of a rail transit safety monitoring device of the present invention;

[0017] Figure 2 for Figure 1 A cross-sectional view of a monitoring housing in an embodiment;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the central processing unit in the embodiment;

[0019] Figure 4 for Figure 1 A schematic structural diagram of the support arm structure in the embodiment.

[0020] In the figure: 1. Monitoring shell; 2. Camera; 3. Inspection window; 4. Main power cord; 5. Rotating bottom column; 6. Rotating top column; 7. Support arm structure; 8. Central processing unit; 9. Night fill light; 10. Rotating axis; 11. Central processing unit shell; 12. Limit block; 13. Limit bottom plate; 14. Processor power cord; 15. Connection slot; 16. Processor upper end fixing cover; 17. Signal transmitter; 18. Limit top plate; 19. Embedded sliding gear; 20. Adjustment button; 21. Fixed block; 22. First-level support arm; 23. Fixed pin; 24. Articulated buckle; 25. Second-level support arm; 26. Equipment fixing bottom; 27. Installation base plate. DETAILED DESCRIPTION

[0021] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0022] The monitoring system is an important part of the rail security system, and the integration of the monitoring system is the only way for the development of monitoring. The idea of ​​the present invention is to set multiple sampling terminals in different directions on the same rail transit safety monitoring device to realize real-time dynamic monitoring of the monitoring range.

[0023] Based on the above ideas, Figure 1 , 2As shown, in a basic embodiment, the rail transit safety monitoring device of the present invention includes an equipment fixing base 26 for fixing and installing in an external environment, and an arm structure 7 is installed on the equipment fixing base 26 for connecting the monitoring structure. The end of the arm structure 7 away from the equipment fixing base 26 is connected to a monitoring shell 1, and the monitoring shell 1 is a hollow cylindrical structure. As a base of a sampling end, a plurality of cameras 2 are installed circumferentially on the side wall of the monitoring shell 1 as sampling ends to cover the monitoring area in a 360° direction around the monitoring shell 1. Multiple sampling ends in different directions are installed on the same monitoring device to realize the actual monitoring of the monitoring area. Real-time dynamic monitoring reduces the installation cost and difficulty, and is convenient for subsequent maintenance. A central processing device 8 is installed in the monitoring shell 1 to identify and warn of personnel intrusion, fire, and surrounding safety through visual information collected by the sampling end. Each camera is connected to the central processing device 8. A signal transmitter 17 is installed on the central processing device 8 to transmit signals to the host. Through computer vision recognition, the integration of multiple functions is realized, the cost of the security system is reduced, and the manpower demand is reduced. The integrated design can realize real-time dynamic monitoring of the monitoring area, and is compatible with multiple security functions, while reducing the cost and difficulty of installation and maintenance.

[0024] In a preferred embodiment, the camera 2 is embedded in the monitoring housing 1, which can save space and provide a certain degree of protection for the camera 2. At the same time, the structure of the housing or the embedded position of the camera 2 can be adjusted to adapt to different on-site conditions. In other embodiments, the camera 2 can be installed on the outside of the housing using an existing gun. Although the weight of the housing will increase and the corresponding support structure needs to be modified, it can still work normally. A wire outlet hole for the camera 2 is reserved on the housing, and the main power cord 4 passes through the wire outlet hole.

[0025] In a preferred embodiment, the outer contour of the monitoring housing 1 is a regular prism, the cameras are distributed on each plane of the monitoring housing, and the camera 2 is set at the center of each side to ensure that the cameras' fields of view cooperate with each other to achieve 360° monitoring. In other embodiments, the monitoring housing 1 is designed to be cylindrical, which is difficult to process and install, but can also work normally.

[0026] In a preferred embodiment, the monitoring housing 1 is detachably connected with an inspection window 3, and the difficulty of installation, maintenance and replacement can be reduced by using the inspection window 3. In other embodiments, the inspection window 3 may not be provided, although the rail transit safety monitoring device structure needs to be disassembled for maintenance and replacement, it can still work normally.

[0027] like Figure 3As shown, in a preferred embodiment, there is a horizontally arranged bottom plate inside the monitoring shell 1, and the central processing unit 8 is detachably mounted on the bottom plate. Two "L"-shaped limit blocks 12 are installed perpendicular to the bottom plate at the position where the central processing unit 8 contacts the bottom plate diagonally, so as to limit the position of the central processing unit 8. In other embodiments, a flange structure can be designed for fixing, and it can also work normally. A processor power line 14 is electrically connected to the surface of one side of the central processing unit shell 11, and the processor power line 14 is connected to an external power supply through a wire outlet hole reserved in the monitoring shell 1. A connecting groove 15 is opened on the outer surface of the other side of the central processing unit 8. A processor upper end fixing cover 16 is movably sleeved on the outer surface of the upper end of the central processing unit shell 11, and a signal transmitter 17 is movably sleeved on the inner wall of the connecting groove 15.

[0028] In a preferred embodiment, one of the limit blocks 12 is arranged near the inspection window 3 and adopts a split structure, which is divided into a limit bottom plate 13 and a limit top plate 18. An embedded sliding tooth 19 is installed between the limit bottom plate 13 and the limit top plate 18. The limit bottom plate 13 is provided with an adjustment button corresponding to the embedded sliding tooth 19. The embedded sliding tooth 19 structure can be quickly installed and disassembled to ensure the stable installation of the central processing unit 8. In other embodiments, it can also be used normally without a split setting. Although the installation and disassembly of the central processing unit 11 is more difficult, it can also work normally.

[0029] In a preferred embodiment, a rotating bottom column 5 is installed at the upper end of the monitoring housing 1, the rotating bottom column 5 is rotatably connected to a rotating shaft 10, the rotating shaft 10 is rotatably connected to a rotating top column 6, and the rotating top column 6 is fixedly connected to an arm structure 7. A rotating structure is designed on the top of the monitoring housing 1, and the direction of the sampling end can be adjusted according to needs to reduce the difficulty of installation. In other embodiments, although the rotating structure is not provided and some installations may affect the monitoring field of view and cause waste of resources, it can still work normally.

[0030] like Figure 4 As shown, in a preferred embodiment, the arm structure 7 includes a fixed block 21 for fixedly connecting the monitoring housing 1, the end of the fixed block 21 away from the monitoring housing 1 is rotatably connected to a primary arm, the end of the primary arm 22 away from the fixed block 21 is rotatably connected to a secondary arm 25 through a fixed latch 23, and the end of the secondary arm 25 away from the primary arm is fixedly connected to a device fixing base 26 through a hinge buckle 24. By rotating the arm, the difficulty of installation can be reduced, the efficiency of installation can be improved, and installation at different viewing angles can be achieved. In other embodiments, by setting a universal joint structure, although the optional angles are limited, it can still work normally.

[0031] In a preferred embodiment, the position where the device fixing base 26 is fixedly connected to the external environment is the mounting substrate 27, so that the mounting method can be changed by replacing the mounting substrate 27. Different mounting substrate 27 spare parts can be prepared according to different environments on site to achieve rapid installation for different environments, such as screw connection, external adhesive tape installation, etc. In other embodiments, the mounting substrate 27 can also be fixedly installed with the device fixing base 26. Although there are fewer installation methods, it can still work normally.

[0032] In a preferred embodiment, the outer wall of the housing is provided with a nighttime fill light 9 that cooperates with the corresponding camera 2, supporting the device to perform effective dynamic monitoring under poor lighting conditions at night. In other embodiments, a camera 2 with a night vision function can be used to achieve a similar effect.

[0033] When in use, the user installs the device at a suitable position through the device fixing base 26, and then adjusts the first-level support arm 22 and the second-level support arm 25 to a suitable angle so that the monitoring housing 1 can perform multi-angle monitoring shooting to avoid the occurrence of monitoring blind spots. Then, the camera 2 is used as a sampling port for the video stream, and the video stream is transmitted to the main central processor for calculation, so as to detect and analyze the target in a specific scene, and the detection result is output to the display terminal of the management center through the signal transmitter 17 to facilitate the administrator to monitor in real time and provide corresponding video evidence for subsequent post-analysis. The instructions are transmitted to the camera 2 through the processor power line 14 and the special scene is analyzed. Abnormal object monitoring in the scene will give a sound alarm. When the camera 2 captures an abnormal object entering the warning perimeter area or there is obvious smoke and flames, the information will be transmitted to the main central processor for screenshots and video storage, and then transmitted to the management center display terminal through the signal transmitter 17 for the convenience of observers' detection and later analysis. At night or in poor lighting conditions, the night fill light 9 is set to support the equipment to perform effective dynamic monitoring under poor lighting conditions at night, thereby improving the clarity of the equipment. At the same time, the rotating bottom column 5, rotating top column 6 and rotating shaft 10 can enable the monitoring shell 1 to rotate 360° to avoid the occurrence of blind spots in monitoring.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A rail transit safety monitoring device, comprising a device fixing base for fixing in an external environment, an arm structure is installed on the device fixing base, and a monitoring housing is connected to one end of the arm structure away from the device fixing base, characterized in that: The monitoring shell is a hollow cylindrical structure. A plurality of cameras are installed circumferentially on the side wall of the monitoring shell as sampling ends to cover the monitoring area in a 360° direction around the monitoring shell. A central processing unit is installed in the monitoring shell. Each camera is connected to the central processing unit. A signal transmitter is installed on the central processing unit for transmitting signals to the host.

2. The rail transit safety monitoring device according to claim 1, characterized in that: The camera is embedded in the monitoring housing.

3. The rail transit safety monitoring device according to claim 1 or 2, characterized in that: The outer contour of the monitoring shell is a regular prism, and the cameras are distributed on various planes of the monitoring shell.

4. The rail transit safety monitoring device according to claim 1 or 2, characterized in that: The monitoring housing is detachably connected with an inspection window.

5. The rail transit safety monitoring device according to claim 4, characterized in that: There is a horizontally arranged bottom plate inside the monitoring shell, and the central processing unit is detachably installed on the bottom plate of the monitoring shell. Two "L"-shaped limit blocks are installed perpendicular to the bottom plate at the position where the central processing unit diagonally contacts the bottom plate to limit the position of the central processing unit.

6. The rail transit safety monitoring device according to claim 5, characterized in that: One of the limit blocks is arranged close to the inspection window and adopts a split structure, which is divided into a limit bottom plate and a limit top plate. An embedded sliding tooth is installed between the limit bottom plate and the limit top plate, and an adjustment button corresponding to the embedded sliding tooth is provided on the limit bottom plate.

7. The rail transit safety monitoring device according to claim 1, 2 or 6, characterized in that: A rotating bottom column is installed at the upper end of the monitoring shell, the rotating bottom column is rotatably connected to a rotating shaft, the rotating shaft is rotatably connected to a rotating top column, and the rotating top column is fixedly connected to a support arm structure.

8. The rail transit safety monitoring device according to claim 1, 2 or 6, characterized in that: The support arm structure includes a fixed block for fixedly connecting to the monitoring shell, one end of the fixed block away from the monitoring shell is rotatably connected to a primary support arm, one end of the primary support arm away from the fixed block is rotatably connected to a secondary support arm, and one end of the secondary support arm away from the primary support arm is fixedly connected to a device fixing base.

9. The rail transit safety monitoring device according to claim 1, 2 or 6, characterized in that: The position where the device is fixedly connected to the external environment is a mounting substrate, so that the mounting method can be changed by replacing the mounting substrate.

10. The rail transit safety monitoring device according to claim 1, 2 or 6, characterized in that: The outer wall of the shell is provided with a nighttime fill light that cooperates with the corresponding camera.

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