CN219999437U - Wide-area intelligent monitoring system for training field - Google Patents

Abstract

The utility model discloses a training field wide area intelligent monitoring system, which comprises an optical assembly and an electronic assembly, wherein the optical assembly comprises a plurality of optical lens groups, each optical lens group comprises a plurality of optical lenses with the same focal length, the imaging view fields of the optical lenses in each optical lens group are spliced seamlessly to form a monitoring view field which is larger than the imaging view field of a single optical lens, and the focal lengths of the optical lenses in different optical lens groups are different; the electronic component comprises a sensor module and a video processing module, wherein the sensor module is arranged at the rear end of the optical lens and used for receiving optical signals of the optical lens and converting the optical signals into electric signals, and the video processing module is electrically connected with the sensor module and used for encoding and processing the electric signals of the sensor module into video signals. The utility model can realize single-point single-view and full-coverage observation in an open area.

Description

Wide-area intelligent monitoring system for training field

Technical Field

The utility model relates to a monitoring system, in particular to a wide-area intelligent monitoring system for a training field.

Background

In prior art video surveillance systems, each point employs a surveillance device in the general form of a bolt face and a ball face.

The gun camera adopts a single light path mode, the monitoring area is a sector area with a specific angle, and the effective observation distance is related to the focal length of the optical lens, the aperture and the resolution of the sensor. The partial focal length variable bolt face can adjust the size of the sector area within a certain range, but the distance is inversely proportional to the observation field angle. The ball machine is a gun machine with a cradle head, and the observable field range is enlarged by rotating the cradle head.

Limited by the limitations of the monitoring device itself: i.e. the inverse proportional relationship of focal length and field of view results in a contradiction between the viewing distance and the angle of view. The monitoring system constituted by the above-mentioned bolt face or ball mechanism has the following problems:

(1) The coverage range and the distance of single-point monitoring are limited, and even through multi-point deployment and cooperation, all areas are difficult to cover in a more complex environment; (2) In order to cover a larger area, a system formed by multiple points needs to be planned, the deployment of each single point is limited by environment and conditions, and the expected requirement can not be met, so that the system requirement can not be met; (3) The system communication and power supply network is complex, early planning and construction are needed, and the influence of on-site environmental factors is large; (4) The intelligent recognition and auxiliary functions are not provided, and the intelligent recognition and auxiliary functions cannot be adapted to more complex monitoring scenes.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a wide-area intelligent monitoring system for a training field, which aims to realize the observation requirement of a complex scene in a single-point mode.

The technical scheme of the utility model is as follows: the training field wide-area intelligent monitoring system comprises an optical assembly and an electronic assembly, wherein the optical assembly comprises a plurality of optical lens groups, each optical lens group comprises a plurality of optical lenses with the same focal length, imaging fields of the optical lenses in each optical lens group are seamlessly spliced to form a monitoring field which is larger than the imaging field of a single optical lens, and the focal lengths of the optical lenses in different optical lens groups are different; the electronic component comprises a sensor module and a video processing module, wherein the sensor module is arranged at the rear end of the optical lens and used for receiving optical signals of the optical lens and converting the optical signals into electric signals, and the video processing module is electrically connected with the sensor module and used for encoding and processing the electric signals of the sensor module into video stream signals.

Further, in order to conveniently arrange the optical lens groups and meet the requirement of the monitoring view field, the imaging view field of the optical lenses in each optical lens group is spliced seamlessly in the horizontal transverse direction.

Further, the different optical lens groups are arranged in parallel in the vertical direction.

Further, in order to be convenient for carry out the position arrangement of optical lens according to the scene needs, including being equipped with the frame of two-layer at least, be equipped with horizontal spout on every layer of frame, every optical lens group through with spout complex slide install in the frame, the slide is used for adjusting when sliding optical lens group's horizontal position.

Further, the sliding groove is an arc-shaped groove, and the sliding plate is used for adjusting the horizontal angle of the optical lens group when sliding. The sliding plate can be used for winding an image plane to carry out horizontal angle adjustment, and the horizontal emergent angle of the optical lens group can be adjusted to adapt to the angle change of the target area caused by different positions of the observation points.

Further, the electronic component comprises a video core module, the video core module is used for receiving the video stream signals sent by the video processing module and splicing, and the video core module is used for outputting the spliced video stream signals or independently outputting the video stream signals sent by the video processing module.

Further, the electronic component includes an internal exchange module, where the video processing modules and the sensor modules are in one-to-one correspondence with the optical lenses, and the internal exchange module is configured to receive video stream signals of each video processing module and forward the video stream signals to the video core module.

The technical scheme provided by the utility model has the advantages that:

the utility model realizes single-point single-view simultaneous full-coverage observation in an open area, only needs single-point power supply and network access, reduces the construction cost of system infrastructure and reduces the complexity of the system network; by matching the optical lenses with different focal lengths, the basically same observation quality is realized for different observation areas in an observation range, and the influence of the observation distance and the observation angle is avoided.

Drawings

FIG. 1 is a block diagram of a wide area intelligent monitoring system of an embodiment.

Fig. 2 is a schematic top view of an optical assembly.

Fig. 3 is a schematic front view of an optical assembly.

Fig. 4 is a schematic view of a fixation structure of an optical assembly.

Fig. 5 is a schematic front view of a fixation structure of an optical assembly.

Fig. 6 is a schematic diagram of the upper layer connection of the fixed structure.

Fig. 7 is a schematic diagram of a single optical path unit constituted by a single optical lens, a sensor module, and a video processing module.

Fig. 8 is a schematic view of optical path splicing of respective optical lenses.

Detailed Description

The present utility model is further described below with reference to examples, which are to be construed as merely illustrative of the present utility model and not limiting of its scope, and various modifications to the equivalent arrangements of the present utility model will become apparent to those skilled in the art upon reading the present description, which are within the scope of the utility model as defined in the appended claims.

In a scene similar to a training field, the field is a rectangular and square wider area, and a plurality of target monitoring areas at different positions in the area cannot be effectively covered by adopting the traditional single-point video monitoring. The training field wide-area intelligent monitoring system uses optical lenses with gradually progressive focal lengths to cover a near-end to far-end monitoring target area in sequence, the near-end adopts a short-focal-length wide-view-field lens, the far-end adopts a long-focal-length narrow-view-field lens, a view field angle coverage area is calculated, the number of lenses with the same specification is selected according to the requirement, and the view fields are physically spliced, so that the effect of covering the whole area is achieved.

Referring to fig. 1, the training field wide area intelligent monitoring system of the present embodiment includes an optical component 1 and an electronic component 2. The optical assembly 1 includes two optical lens groups, i.e., a first optical lens group 101 and a second optical lens group 102. Each optical lens group includes a plurality of optical lenses having the same focal length, and the focal lengths of the optical lenses in the first optical lens group 101 and the second optical lens group 102 are different for obtaining different fields of view. The aim of covering the whole area is achieved by seamlessly splicing the imaging fields of each optical lens to form a monitoring field of view which is larger than the imaging field of view of a single optical lens.

The electronic assembly 2 comprises a sensor module 201, a video processing module 202, an internal exchange module 203 and a video core module 204, wherein the sensor module 201 and the video processing module 202 are arranged in one-to-one correspondence with the optical lenses, i.e. each optical lens is provided with one sensor module 201 and one video processing module 202. Each optical lens firstly forms an image on the sensor module 201, optical signals of the optical lens are converted into electric signals, image data are collected, encoded and compressed by the video processing module 202 to form video stream signals, the compressed video stream is forwarded to the video core module 204 by the internal exchange module 203, overlapping areas of images of the multipath video stream signals are identified, spliced and cached by the video core module 204, and the original video stream and the spliced video are output through the Ethernet according to a request of a user.

The component modules of the embodiments are specifically described below.

As shown in fig. 2 to 8, the first optical lens group 101 is composed of two optical lenses 101a with a focal length of 8mm, the single lens angle of view is about 54 degrees, and the fields of view are spliced in the horizontal and lateral directions to form a 106-degree field of view range 101' covering a target area with a distance of about 20 meters. The second optical lens group 102 is composed of four optical lenses 102a with a focal length of 75mm, the horizontal field angle of a single lens is about 5.6 degrees, and the field stitching is performed in the horizontal and transverse directions to form a field range 102' of 19.8 degrees, so as to cover a target area with a distance of about 120 meters. The seamless splicing of the fields of view of the optical lenses in the first optical lens group 101 and the second optical lens group 102 is to align adjacent edges of fields of view of adjacent two optical lenses or to slightly overlap adjacent areas of fields of view.

The first optical lens group 101 and the second optical lens group 102 are both mounted on a fixed structure as shown in fig. 4. Referring to fig. 6 in conjunction with fig. 4, the fixing structure includes a two-layer frame 3, a first optical lens group 101 is mounted on an upper layer of the frame 3, and a second optical lens group 102 is mounted on a lower layer of the frame 3. Each layer of the frame 3 is provided with a horizontal chute 301, a sliding plate 302 matched with the chute 301 is arranged in the chute 301, a fixing long hole 302a is formed in the sliding plate 302, and the sliding plate 302 is fixed in the chute 301 by penetrating the long hole 302a through a bolt. The slide plate 302 is fixedly provided with lens clamps 303 for fixing optical lenses, each lens clamp 303 can fasten one optical lens, a plurality of fixing holes are preset on the slide plate 302, and the lens clamps 303 are installed by selecting different fixing holes for adjusting the angles of two adjacent lens clamps 303. The lens holder 303 is internally provided with a plurality of fastening grooves according to the size of the optical lens for clamping the optical lens, the tail part of the lens is provided with external threads, the optical connecting piece 304 is provided with internal threads, the optical connecting piece 304 is fastened through a screw structure, the optical connecting piece 304 is arranged on the sensor plate 305 through screw fastening, the sensor plate 305 is provided with the sensor module 201, and the processing plate 306 with the video processing module 202 and the sensor plate 305 are fixedly laminated through studs and are fixed to screw holes at the back of the lens holder 303 through the outermost studs. A single optical path unit constituted by the optical lens, the sensor module 201, and the video processing module 202 is shown in fig. 7. The horizontal angle adjustment can be performed on the imaging plane by adjusting the position of the sliding plate 302, and the horizontal exit angles of the first optical lens group 101 and the second optical lens group 102 can be adjusted to adapt to the angle change of the target area caused by the different positions of the observation points. The field of view of the spliced first optical lens group 101 and second optical lens group 102 is shown in fig. 8.

The Gao Qingchuan sensors of sensor module 201 all employ 1/1.8 inch, maximum resolution 3840 x 2160 (4K) starlight level image sensor IMX334, and the sensor board mounting sensor module 201 and the video processing board of video processing module 202 employ separate structures, both connected by flexible FPC cables, taking into account the internal complexity of the array imaging.

The video processing board adopts a NT9852x core SoC, the inside of the video processing board contains dual-core ARM A9, NEON acceleration and FPU processing units are integrated, the latest generation of ISP (Internet service provider) and H.265/H.264 video compression codecs, and the high-performance hardware DLA module, the graphic engine, the Ethernet PHY, the USB 2.0, the audio codec, the RTC and the SD/SDIO 3.0 have the characteristics of high image quality, low code rate and low power consumption. The sensor board and the video processing board have the same specification and size, 35mm is 1.6mm, and the sensor board and the video processing board are mutually and parallelly stacked so as to be convenient to install, and space is saved.

The internal exchange module 203 is a single board 8-port gigabit network exchange board, and is designed with 8 10/100/100M adaptive ports, each port supporting a line speed transfer method, MDI/MDIX automatic rollover and duplex/rate auto-negotiation. The switching board is designed to be 6-48V wide-voltage input, when the number of optical paths in the system is increased, more subunits can be connected in a cascade mode through the switching board, and according to hardware performance, the real-time processing of about 16 paths of video streams can be expected to be supported at most.

The video core module 204 is realized by adopting an SoC integrated platform ZU7 with an FPGA, the video core module 204 receives video stream signals output by each path of video processing module 202 forwarded by the internal switching module 203, and the video core module performs real-time splicing and buffering on a plurality of paths of overlapped images of each group of target areas. And uploading the processed data when the upper computer software system sends out a data request.

The software system matched with the training field wide area intelligent monitoring system adopts a BS architecture, provides a man-machine operation interface, video data storage and realizes a data transmission protocol with monitoring equipment.

Unlike conventional video monitoring, software systems can support two modes of monitoring screen display.

1) When a single display mode is adopted, the software system displays the high-definition spliced video uploaded by the equipment in real time in a resolution-reducing mode, so that a user side can observe the whole view of a target area, and when a point of interest is in a certain spliced channel of the whole area, the channel can be switched to and displayed in Gao Qingyuan resolution, and detail observation is facilitated.

2) When a multi-display array is adopted, the software system directly outputs the original resolution panoramic video.

The software system server can also be internally provided with an AI algorithm to realize specific target identification in a target area and realize training auxiliary functions such as identity authentication, quantity statistics, action identification and the like.

Claims (7)

1. The training field wide-area intelligent monitoring system is characterized by comprising an optical assembly and an electronic assembly, wherein the optical assembly comprises a plurality of optical lens groups, each optical lens group comprises a plurality of optical lenses with the same focal length, imaging fields of the optical lenses in each optical lens group are spliced seamlessly to form a monitoring field of view larger than the imaging field of view of a single optical lens, and focal lengths of the optical lenses in different optical lens groups are different; the electronic component comprises a sensor module and a video processing module, wherein the sensor module is arranged at the rear end of the optical lens and used for receiving optical signals of the optical lens and converting the optical signals into electric signals, and the video processing module is electrically connected with the sensor module and used for encoding and processing the electric signals of the sensor module into video signals.

2. The training field wide area intelligent monitoring system of claim 1, wherein the imaging fields of view of the optical lenses within each of the optical lens groups are seamlessly stitched in a horizontal lateral direction.

3. The training field wide area intelligent monitoring system of claim 1, wherein different optical lens groups are arranged in parallel in a vertical direction.

4. The training field wide area intelligent monitoring system according to claim 1, comprising a frame provided with at least two layers, wherein each layer of the frame is provided with a horizontal chute, each optical lens group is mounted on the frame through a slide plate matched with the chute, and the slide plate is used for adjusting the horizontal position of the optical lens group when sliding.

5. The wide-area intelligent monitoring system of the training field of claim 4, wherein the sliding chute is an arc-shaped chute, and the sliding plate is used for adjusting the horizontal angle of the optical lens group when sliding.

6. The training field wide area intelligent monitoring system of claim 1, wherein the electronic component comprises a video core module, the video core module is configured to receive the video stream signals sent by the video processing module and splice, and the video core module is configured to output the spliced video stream signals or separately output the video stream signals sent by the video processing module.

7. The training field wide area intelligent monitoring system according to claim 6, wherein the electronic component comprises an internal exchange module, the video processing modules and the sensor modules are in one-to-one correspondence with the optical lenses, and the internal exchange module is configured to receive video stream signals of each video processing module and forward the video stream signals to the video core module.