CN211014852U - AR fire control goggles - Google Patents
AR fire control goggles Download PDFInfo
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- CN211014852U CN211014852U CN201921939575.4U CN201921939575U CN211014852U CN 211014852 U CN211014852 U CN 211014852U CN 201921939575 U CN201921939575 U CN 201921939575U CN 211014852 U CN211014852 U CN 211014852U
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- display unit
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- goggles
- infrared camera
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- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The AR fire protection goggles comprise a goggle outer frame, wherein a transparent eyeshade is arranged on the goggle outer frame, an AR display unit, an infrared camera and a visible light camera are arranged on one side of the transparent eyeshade, a window of the AR display unit is positioned right in front of one eye, the infrared camera and the visible light camera are wrapped in a shell, an image processing unit is further integrated in the shell, and the image processing unit analyzes and interacts images shot by the infrared camera and the visible light camera and signals given by external equipment and displays information and images in the AR display unit; the optical waveguide type AR display is adopted, so that the unit volume is small and the weight is light; the window of the AR display unit is positioned right in front of the eyes, and the sight line does not need to be transferred when information is read; the utility model discloses improve fire fighter's rescue efficiency and life safety by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of the fire rescue, in particular to AR fire control goggles.
Background
The existing AR fire protection goggles contain a single transparent cover, are used for protecting firemen's glasses from being injured by the outside and have no other display equipment. The existing products need to be additionally equipped with other devices if the functions of AR display need to be realized.
The enhanced display module described in patent No. 201910341666.6 is an O L ED screen + free-form surface lens, and is mounted on a helmet, and the enhanced display module needs to keep a fixed distance and angle from the pupil to work normally, otherwise it will cause a defocus or image distortion.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide AR fire protection goggles which adopt optical waveguide type AR display, and have small unit volume and light weight; the window of the AR display unit is positioned right in front of the eyes, and the sight line does not need to be transferred when information is read; the AR display device is connected with other external devices, displays the position outline of the rescued person, the position information of the firefighter, the vital signs of the firefighter, the state information of the fire fighting device and the like for the firefighter, and provides functions such as on-site pictures for a command center, so that the rescue efficiency and the life safety of the firefighter are greatly improved.
In order to realize the purpose, the technical scheme of the utility model is that:
AR fire control goggles, including goggles frame 2, install transparent eye-shade 1 on goggles frame 2, transparent eye-shade 2 one side is provided with AR display element 3, infrared camera 4 and white light camera 5, and AR display element 3's window is located the dead ahead of an eye, and infrared camera 4 and white light camera 5 main part parcel are in the casing, and the casing is still integrated to have the image processing unit in, the image processing unit carry out passback backend server with the image that white light camera was shot, carry out analysis mutual back with the signal that infrared camera 4 and external equipment given, show information and image in AR display element 3.
The AR display unit 3 is an optical waveguide type AR display unit.
The fixed distance between the AR display unit 3 and the eyes is 20 +/-4 mm.
The utility model has the advantages that:
1. small volume and light weight. Conventional AR display units mostly use reflective free-form surfaces or prismatic optical schemes. The former is formed by multiunit optical mechanism, and the unit occupies bulky, and the latter weight is heavy, is unfavorable for with fire rescue equipment integration. The utility model discloses an optical waveguide formula AR display element, two kinds of volumes are littleer than the aforesaid, and weight is lighter.
2. The window is positioned right in front of the eyes, so that the information can be read in real time. The optical waveguide type AR display unit is placed right in front of the eye and is fixed at a distance of about 20mm from the eye. Reading information does not require shifting the line of sight. In the prior art, the reflective free-form surface or prism type AR display unit is placed in front of or below eyes, so that the sight line needs to be shifted when information is read, and the rescue and escape efficiency is influenced.
3. The AR display unit needs to keep a fixed visual distance and a fixed visual angle with eyes in actual use, otherwise, a window seen by the eyes can have the problems of defocusing, distortion, loss and the like, so that the AR display unit cannot be used normally and stably. The utility model discloses be fixed in the fire control face guard with AR display element 3, utilize its characteristics of stably laminating people's face, ingenious fixed bolster as AR display element with it. Thereby ensuring that the AR display unit 3 reaches a stable use state in the rescue activities with large actions.
4. And contour extraction information is provided to help the firefighter to quickly find the person to be rescued. The utility model discloses with infrared camera, white light camera, image processing board, AR display element in the whole integrated and other casing of fire control face guard, but single product cooperation external power supply direct work treats rescuer's position profile information through AR display element direct display.
5. Shooting a field video, and transmitting the field video to a command center through an external image transmission device to help the command center make a quick decision.
6. The system provides position information, maps and fire scene architectural drawings of the firefighters, and helps the firefighters to quickly find the way and escape. The utility model discloses a connection corresponds external treatment facility or command center, shows information such as positional information, map, scene of a fire architectural drawing in AR display element.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
FIG. 3 is a schematic diagram of signal interaction of the image processing unit.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Refer to fig. 1, fig. 2, AR fire control goggles, including goggles frame 2, install transparent eye-shade 1 on goggles frame 2, still be provided with bandage 6 on goggles frame 2, transparent eye-shade 2 one side is provided with AR display element 3, infrared camera 4 and white light camera 5, AR display element 3's window is located the dead ahead of an eye, infrared camera 4 and white light camera 5 main part parcel are in the casing, still integrated image processing unit in the casing, be equipped with infrared camera switch 7 in the middle of the casing side, casing side below is equipped with external interface of camera 8, image processing unit carry out passback backend server with the image that white light camera shot, carry out the analysis interaction back with the signal that infrared camera 4 and external equipment given, information and the image that show in AR display element 3. The signal given by the external equipment comes from the signals included in the existing fire fighting large system: the system comprises an indoor positioning system, a vital sign acquisition system, a fire fighting equipment state acquisition system, an image transmission system, a data transmission system and a background server. The AR display unit 3 is powered by a power supply.
The AR display unit 3 is an optical waveguide type AR display unit.
The fixed distance between the AR display unit 3 and the eyes is 20 +/-4 mm.
Referring to fig. 3, the image processing unit specifically includes: the image processing unit carries out improved gray level normalization processing on the video stream acquired by the infrared camera 4 to obtain a gray level video stream; the gray level video stream without noise points is obtained through improved homomorphic filtering processing, and more video contour details are obtained through homomorphic filtering transfer functions.
D (a, b), K (a, b) are videos before and after normalization respectively, and m0,n0Respectively after normalizationThe mean value and the variance, wherein m and n are the mean value and the variance before the two images are normalized;
processing the normalized grayscale video D (a, b) by using an improved homomorphic filter function K (x, y), and finally obtaining a grayscale video stream without noise points;
K'(x,y)＝exp(Z(x,y)+D(a,b))；
(2) then, second-order difference processing is carried out on the gray matrix of the image according to columns, and finally, points with absolute values larger than a set threshold value are extracted from the gray matrix after second-order difference, and then the contour video stream can be extracted;
the method comprises the steps that an infrared video stream is used as a reference standard, the infrared video stream and a profile video stream are associated in the same coordinate system through a matching algorithm to be used for determining the position of a user in a physical environment, the profile video stream is subjected to an efficient proportional correction algorithm with parameters calibrated in advance to obtain an ultralow-delay stable non-offset profile video, and then the ultralow-delay stable non-offset profile video is transmitted through an HDMI (high-definition multimedia interface) digital video interface protocol;
constructing a calibration model by the above formula, c in the above formulax、cyIs the optical center coordinate, f, of the infrared camera 4xAnd fyIs the focal length, x, of the infrared camera 4c、ycAnd zcIs the coordinates of the camera in a virtual plane coordinate system. u. ofv3And vv3The parameters to be calibrated are set, the number of calibration points is set to be m, calibration reference point information is obtained through solving in a nonlinear regression mode, and finally, the images of the contour video stream are subjected to proportion matching, and the contour video is displayed on the AR display unit 3.
The AR display unit 3 develops images of the received profile video through the miniature high-density diode panel, the waveguide couples the developed light into the high-refractive-index glass substrate, the developed light is expanded into a two-dimensional matrix under the effect of the emergent grating, human eyes can obtain a high-definition real-time profile image with a transparent background through the glass substrate, and a fireman finally sees through the grating that all object images in the actual environment have clear and identifiable profiles.
The utility model discloses a theory of operation does:
the goggles is worn the back and is laminated with the firefighter face, and the goggles passes through bandage 6 and head is fixed, and AR display element 3 keeps fixed distance and angle with eyes, and the image that white light camera 5 was shot is passed back to the backstage, and infrared camera switch 7 opens the back, and infrared camera 4 begins work, after image processing unit analysis, provides information and the image that shows to AR display element 3. The 3AR display unit is connected with external equipment through an 8-camera external interface, and interaction of information and images is achieved.
The utility model discloses be applied to the fire rescue field, combine infrared image acquisition, analysis, indoor outer positioning analysis, multisensor data acquisition, analysis, image transmission to multiple technological means such as command center, through AR display element, can accurately show the analysis result in the very first time in the front of the fireman's eyes fast. Therefore, the fire fighter can make a quick judgment at the first time, the position of the rescued person can be accurately found, and a reasonable rescue and escape scheme can be worked out. Meanwhile, the monitoring and displaying of various equipment state information and vital sign information of the firefighter can greatly improve the life safety of the firefighter in a fire scene.
Claims (3)
- AR fire control goggles, including goggles frame (2), install transparent eye-shade (1) on goggles frame (2), its characterized in that, goggles frame (2) one side is provided with AR display element (3), infrared camera (4) and white light camera (5), and the window of AR display element (3) is located the dead ahead of an eye, and infrared camera (4) and white light camera (5) main part parcel are in the casing, and the casing still integrated image processing unit has, image processing unit carry out passback backend server with the image that white light camera was shot, carry out analysis interaction back with the signal that infrared camera (4) and external equipment given, show information and image in AR display element (3).
- 2. AR fire safety goggles as claimed in claim 1, characterised in that the AR display unit (3) is an optical waveguide type AR display unit.
- 3. AR fire safety goggles as claimed in claim 1, characterised in that said AR display unit (3) is fixed at a distance of 20 ± 4mm from the eyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939575.4U CN211014852U (en) | 2019-11-12 | 2019-11-12 | AR fire control goggles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939575.4U CN211014852U (en) | 2019-11-12 | 2019-11-12 | AR fire control goggles |
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| Publication Number | Publication Date |
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| CN211014852U true CN211014852U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921939575.4U Expired - Fee Related CN211014852U (en) | 2019-11-12 | 2019-11-12 | AR fire control goggles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989168A (en) * | 2019-11-12 | 2020-04-10 | 陕西禾宁电子科技有限公司 | AR fire control goggles |
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2019
- 2019-11-12 CN CN201921939575.4U patent/CN211014852U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989168A (en) * | 2019-11-12 | 2020-04-10 | 陕西禾宁电子科技有限公司 | AR fire control goggles |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201209 Address after: Room 01, 16 / F, building B, Wangdu, northeast corner of Zhangba street, Jinye road and zhangbayi Road, high tech Zone, Xi'an City, Shaanxi Province Patentee after: Shaanxi bensu Biotechnology Co.,Ltd. Address before: Room 02, 16 / F, building B, Wangdu, northeast corner of Zhangba street, Jinye road and zhangbayi Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: Shaanxi Henning Electronic Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |