TWI858759B - Panoramic surveillance device and surveillance system - Google Patents

Abstract

A panoramic surveillance device includes an outer casing, at least two photographing lens devices and a processor, and the at least four photographing lens devices and the processor are received in the outer casing. Each photographing lens device faces a fixed capturing direction to capture a regional image corresponding to the capturing direction. The capturing directions of the photographing lens devices are different. The processor is electrically connected to the photographing lens devices to receive the regional images of the photographing lens devices and stitch them to generate a panoramic image for surveillance. Therefore, it is possible to achieve panoramic surveillance without changing the capturing angles of the photographing lens devices.

Description

Panoramic surveillance equipment and monitoring system

The present invention relates to a monitor, in particular to a panoramic monitoring device and a monitoring system.

If existing security cameras want to achieve 360-degree panoramic monitoring, they mostly use a fisheye lens with a lens swing mechanism. However, the installation of a lens swing mechanism not only increases the manufacturing cost, but the lens swing mechanism is also prone to failure after long-term operation, resulting in blind spots in monitoring and increased maintenance costs.

Furthermore, to use the shooting results of fisheye lenses for security monitoring, it is necessary to use fisheye lenses to shoot regional images of different scenes in a space, then calibrate or expand each regional image, and finally combine all the calibrated or expanded regional images into a panoramic image. However, in the process of calibrating and combining regional images, some image information or resolution may be sacrificed, resulting in partial blurring of the panoramic image, which in turn causes the loss of monitoring information.

Therefore, one of the objects of the present invention is to provide a panoramic monitoring device and a monitoring system, thereby overcoming the problems of the prior art that a lens swing mechanism is required and image correction and joining are required.

According to an embodiment of the present invention, a panoramic monitoring device is provided, which is suitable for being connected to a monitoring server and comprises: an outer cover, comprising a light-transmitting portion and a main body, wherein the light-transmitting portion and the main body together form a containing space; at least two cameras, which are arranged in the containing space and can be viewed through the light-transmitting portion, and each of the cameras faces a fixed photographing direction for photographing A regional image corresponding to the photographing orientation, the photographing orientations of the at least two cameras are different; and a processor, which is arranged in the accommodating space and electrically connected to the at least two cameras, and is used to receive the regional images of each of the cameras and stitch the received regional images into a panoramic image, and then transmit the panoramic image to the monitoring server for an event analysis.

Optionally, the panoramic monitoring device further includes a fixing base, which is disposed in the accommodating space, and the at least two cameras are fixed on the fixing base.

Optionally, the number of the camera lenses is at least four, including a first main lens, a second main lens and at least two auxiliary lenses, the camera orientation of the first main lens is opposite to the camera orientation of the second main lens, and the camera orientations of the at least two auxiliary lenses are different from each other and different from the camera orientation of the first main lens and the camera orientation of the second main lens.

Optionally, the field of view of the first main lens is the same as the field of view of the second main lens, and the field of view of each auxiliary lens is smaller than the field of view of the first main lens and the field of view of the second main lens.

Optionally, the field of view of the first main lens is different from the field of view of the second main lens, and the field of view of each auxiliary lens is smaller than the field of view of the first main lens and the field of view of the second main lens.

Optionally, the field of view of each auxiliary lens overlaps the field of view of the first main lens or the field of view of the second main lens.

Optionally, the field of view angle of the first main lens and the field of view angle of the second main lens are in the range of 100 degrees to 150 degrees.

Optionally, the field of view of each auxiliary lens is in the range of 90 degrees to 130 degrees.

Optionally, the at least two auxiliary lenses include a first auxiliary lens, a second auxiliary lens, a third auxiliary lens and a fourth auxiliary lens, the photographic orientation of the first auxiliary lens is opposite to the photographic orientation of the second auxiliary lens, and the photographic orientation of the third auxiliary lens is opposite to the photographic orientation of the fourth auxiliary lens.

Optionally, the photographic positions of the at least two auxiliary lenses are at the same horizontal height.

The panoramic monitoring device provided by the present invention can achieve the effect of panoramic monitoring without adjusting the shooting angle of the camera lens during operation, and can even achieve the effect of monitoring without blind spots. In addition, since no additional mechanism for changing the shooting angle of the camera lens is required, it can not only avoid the occurrence of shooting angle adjustment errors, simplify the complexity of the panoramic monitoring device, but also reduce the manufacturing and maintenance costs.

In addition, the present invention provides a monitoring system according to an embodiment, comprising: the above-mentioned panoramic monitoring device, used to provide the panoramic image; and a monitoring server, which is communicatively connected to the panoramic monitoring device, used to receive the panoramic image, and utilizes an image analysis technology to perform an event analysis on the received panoramic image.

The monitoring system provided by the present invention utilizes image analysis technology to identify objects appearing in the panoramic image provided by the panoramic monitoring device and analyze the behavior of the objects, thereby achieving the purpose of event analysis, that is, judging or even finding violations, accidents or abnormal events, so as to facilitate the recording and warning of violations, accidents or abnormal events.

1 to 5 , a panoramic surveillance device 1 provided by the present invention according to one embodiment can be installed on a support 2 (such as but not limited to a wall, a ceiling or a bracket as shown in FIG. 4 ), and for example but not limited to includes a plurality of cameras 10, a fixing base 20, a housing 30, a processor 40 and an outer cover 50.

Each camera lens 10 includes an optical lens module composed of one or more lenses and an image sensor located on the imaging surface of the optical lens module. Each camera lens 10 is fixed on a fixing base 20 and is fixedly and individually oriented toward a photographing orientation to capture an image of a region corresponding to the photographing orientation. The photographing orientations of all the cameras 10 are different from each other.

The camera lenses 10 include, for example but not limited to, a first main lens 10A, a second main lens 10B, a first auxiliary lens 10C, a second auxiliary lens 10D, a third auxiliary lens 10E and a fourth auxiliary lens 10F.

The photographic orientation D1 of the first main lens 10A is opposite to the photographic orientation D2 of the second main lens 10B. The photographic orientations of all auxiliary lenses are different from each other and also different from the photographic orientation D1 of the first main lens 10A and the photographic orientation D2 of the second main lens 10B. Specifically, the photographic orientation D3 of the first auxiliary lens 10C is opposite to the photographic orientation D4 of the second auxiliary lens 10D, and the photographic orientation D5 of the third auxiliary lens 10E is opposite to the photographic orientation D6 of the fourth auxiliary lens 10F. The photographing positions D4 to D6 of the first auxiliary lens 10C to the fourth auxiliary lens 10F are, for example but not limited to, distributed at the same horizontal height, that is, on the same plane.

The field of view of each auxiliary lens partially overlaps with the field of view of the first main lens 10A or the field of view of the second main lens 10B. The fields of view of two auxiliary lenses whose shooting directions are not opposite partially overlap.

In this embodiment, the field of view of the first main lens 10A is the same as the field of view of the second main lens 10B. However, the present invention is not limited to this embodiment. In other embodiments, the field of view of the first main lens 10A can also be changed to be different from the field of view of the second main lens 10B.

In this embodiment, the field of view of each auxiliary lens is smaller than the field of view of the first main lens 10A and the field of view of the second main lens 10B. However, the present invention is not limited to this embodiment. In other embodiments, the field of view of one or more auxiliary lenses can also be changed to be the same as or larger than the field of view of the first main lens 10A or the field of view of the second main lens 10B.

In this embodiment, the field of view angle of the first main lens 10A and the field of view angle of the second main lens 10B are in the range of 100 degrees to 150 degrees. However, the present invention is not limited to this embodiment.

In this embodiment, the field of view of each auxiliary lens is in the range of 90 degrees to 130 degrees. However, the present invention is not limited to this embodiment.

The camera lens 10 and the fixing base 20 may be disposed in a housing 30 , and the housing 30 may expose each camera lens 10 .

The processor 40 is electrically connected to each camera lens 10 to receive the regional images captured by each camera lens 10 and stitch all the regional images received at the same time point into a panoramic image.

The outer cover 50 includes a light-permeable portion 51 and a main body 52. The light-permeable portion 51 and the main body 52 can together form a housing 53 to accommodate the housing 30, the processor 40, and the camera lens 10 and the fixing seat 20 in the housing 30. The light-permeable portion 51 is a transparent or light-permeable protective cover, so each camera lens 10 can be seen through the light-permeable portion 51. The main body 52 can be connected or mounted on the support 2, so the panoramic monitoring device 1 can be set anywhere for security monitoring.

The panoramic monitoring device 1 provided by the present invention can achieve the effect of panoramic monitoring without adjusting the shooting angle of the camera lens 10 during operation, and can even achieve the effect of monitoring without blind spots. In addition, since no additional mechanism for changing the shooting angle of the camera lens 10 is required, it can not only avoid the occurrence of shooting angle adjustment errors, simplify the complexity of the mechanism of the panoramic monitoring device 1, but also reduce the manufacturing and maintenance costs.

Please refer to FIG6 , a monitoring system provided by the present invention according to an embodiment includes the panoramic monitoring device 1 and a monitoring server 3. The monitoring server 3 can be connected to the panoramic monitoring device 1 in communication to receive the panoramic image provided by the panoramic monitoring device 1, and then use an image analysis technology to identify the objects appearing in the panoramic image and analyze the behavior of the objects, so as to achieve the purpose of event analysis, that is, to judge or even find out the violation, accident or abnormal event, so as to record and warn the violation, accident or abnormal event. The specific method of event analysis can refer to any feasible method or currently known method, which will not be repeated here.

Although the panoramic monitoring device 1 of the present invention is described by taking six cameras 10 as an example, the number of cameras 10 can actually be changed to more than three or more than four.

Although the panoramic monitoring device 1 of the present invention is described by taking two main lenses and four auxiliary lenses as an example, the number of main lenses and the number of auxiliary lenses can actually be adjusted according to needs. For example, one main lens is matched with two or three auxiliary lenses. Or, two main lenses are matched with one or two auxiliary lenses.

In addition, the camera lens 10 of the panoramic monitoring device 1 of the present invention is not a fisheye lens.

Referring to FIG. 7 , there is shown a schematic diagram of a panoramic monitoring device of another embodiment of the present invention installed on a bracket, illustrating a state where there are two cameras 10. When there are two cameras 10, the two cameras 10 are arranged in correspondence with each other, and each camera 10 is a fisheye lens with a viewing angle of at least 180 degrees, thereby constituting another implementation state.

Although the present invention is disclosed as above with the aforementioned embodiments, these embodiments are not intended to limit the present invention. Within the spirit and scope of the present invention, the changes, modifications and combinations of various embodiments are all within the scope of patent protection of the present invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

1: Panoramic surveillance device

2: Support

3: Monitoring Server

10: Camera lens

10A: First main lens

10B: Second main lens

10C: First auxiliary lens

10D: Second auxiliary lens

10E: Third Auxiliary Lens

10F: Fourth auxiliary lens

20: Fixed seat

30: Shell

40:Processor

50: Outer cover

51: light-transmitting part

52: Main body

53: Storage space

D1,D2,D3,D4,D5,D6: Photography direction

After studying the detailed description in conjunction with the following figures, other aspects of the present invention and its advantages will be discovered: Figure 1 is a schematic diagram of a camera lens and a fixing seat of a panoramic monitoring device according to an embodiment of the present invention; Figure 2 is a schematic diagram of the positions of four cameras of a panoramic monitoring device according to an embodiment of the present invention; Figure 3 is a schematic diagram of a portion of a panoramic monitoring device according to an embodiment of the present invention; Figure 4 is a schematic diagram of a panoramic monitoring device according to an embodiment of the present invention installed on a bracket; Figure 5 is a functional block diagram of a panoramic monitoring device according to an embodiment of the present invention; Figure 6 is a functional block diagram of a monitoring system according to an embodiment of the present invention; and Figure 7 is a schematic diagram of a panoramic monitoring device according to another embodiment of the present invention installed on a bracket, showing the state of having two camera lenses.

10: Camera lens

40: Processor

Claims (9)

A panoramic monitoring device is suitable for connecting to a monitoring server and comprises: an outer cover, comprising a light-transmitting portion and a main body, wherein the light-transmitting portion and the main body together form a containing space; a housing, arranged in the containing space; a fixing seat, arranged in the housing; at least two cameras, fixed to the fixing seat and visible from the light-transmitting portion, the housing reveals each camera, each camera facing the fixed seat; A certain shooting direction is used to shoot a regional image corresponding to the shooting direction, and the shooting directions of the at least two cameras are different; and a processor is arranged in the accommodation space and electrically connected to the at least two cameras, and is used to receive the regional images of each camera and stitch the received regional images into a panoramic image, and then transmit the panoramic image to the monitoring server for an event analysis. According to the panoramic surveillance device described in claim 1, the number of the camera lenses is at least four, and includes a first main lens, a second main lens and at least two auxiliary lenses, the camera orientation of the first main lens is opposite to the camera orientation of the second main lens, and the camera orientations of the at least two auxiliary lenses are different from each other and different from the camera orientation of the first main lens and the camera orientation of the second main lens. According to the panoramic monitoring device described in claim 2, the field of view of the first main lens is the same as the field of view of the second main lens, and the field of view of each auxiliary lens is smaller than the field of view of the first main lens and the field of view of the second main lens. According to the panoramic monitoring device described in claim 2, the field of view of the first main lens is different from the field of view of the second main lens, and the field of view of each auxiliary lens is smaller than the field of view of the first main lens and the field of view of the second main lens. According to the panoramic monitoring device described in claim 2, the field of view of each auxiliary lens overlaps the field of view of the first main lens or the field of view of the second main lens. According to the panoramic monitoring device described in claim 2, the field of view angle of the first main lens and the field of view angle of the second main lens are in the range of 100 degrees to 150 degrees. According to the panoramic monitoring device described in claim 2, the field of view of each auxiliary lens is in the range of 90 degrees to 130 degrees. According to the panoramic surveillance device described in claim 2, the camera positions of the at least two auxiliary lenses are at the same horizontal height. A monitoring system comprises: a panoramic monitoring device as described in any one of claim items 1 to 8, for providing the panoramic image; and a monitoring server, communicatively connected to the panoramic monitoring device, for receiving the panoramic image, and performing an event analysis on the received panoramic image using an image analysis technology.

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