CN111743691A - Implementation method of ultrasonic VR welding mask - Google Patents
Implementation method of ultrasonic VR welding mask Download PDFInfo
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- CN111743691A CN111743691A CN202010720262.0A CN202010720262A CN111743691A CN 111743691 A CN111743691 A CN 111743691A CN 202010720262 A CN202010720262 A CN 202010720262A CN 111743691 A CN111743691 A CN 111743691A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
- A61F9/06—Masks, shields or hoods for welders
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Abstract
An implementation method of an ultrasonic VR welding mask provides a welding mask design method integrating an ultrasonic imaging technology, a VR display technology and a mobile communication technology. The ultrasonic probe emits ultrasonic beams, the ultrasonic beams are reflected after reaching the surface of the weldment, the time difference of the reflection of different surfaces received by the probe is different, and a 3D image of the surface of the weldment is generated through calculation and composition calculation of the processor; the vertical depth or the horizontal distance from the defect to the incident point of the probe can be calculated according to the sound velocity of the welding material, the depth distribution of the defect in the welding seam is obtained, and then a processor is used for image reconstruction, so that a 3D image of the defect in the welding seam can be obtained; the processor superimposes the 3D image of the internal defect of the welding seam reconstructed by the image on the 3D image of the surface of the weldment and transmits the image to VR glasses; the images of the welding process are transmitted to the server through the 5G communication module from time to time, and monitoring of the welding process, remote guidance or remote training are facilitated.
Description
Technical Field
The invention relates to a welding mask, in particular to a novel implementation method of a welding mask combining an ultrasonic imaging technology and a VR virtual display technology.
Background
Existing welding masks are basically comprised of two parts, a mask part and a shutter lens part.
The effect of face guard is to shelter from face and neck, prevents the scorching hot injury that splash particulate matter injury and infrared ray brought during the welding.
The function of the shading lens is to filter out part of strong visible light generated during welding and block part of infrared and ultraviolet rays to avoid burning eyes.
The existing welding face covers are divided into two types, which belong to a basic version and an upgraded version designed under the same principle.
Existing welding masks differ from the base and upgraded versions by the masking lens.
The shading lens of basic version welding face guard is monochromatic glass, and the colour is very dark, can filter the most strong visible light that produces during the welding, but does not see weldment and the welding seam outside the face guard clearly before the beginning of the arc of welding operation, so the welded in-process will constantly open the face guard and see the welding seam clearly, closes the face guard welding fast again, repeats such flow action.
The upgraded welding mask aims to solve the problem of welding caused by the complex action of repeatedly opening the upper mask in the welding process, and the single-color glass is replaced by the color-changeable glass or the transmission type liquid crystal screen. Under natural light, the color of the color-changeable glass or the transmission type liquid crystal screen is light, when strong visible light is generated by welding, the electronic photosensitive device on the mask senses the strong visible light, and the color of the color-changeable glass or the transmission type liquid crystal screen is changed from light to dark within 0.1s, so that the function of protecting eyes is achieved.
It can be seen that, in any version, the low transmittance of the light-shielding lens of the existing welding mask in the working state shows a visual state of bright center and dark periphery, the welding state of the welding seam in the center is not clear, and the welder depends on experience and hand feeling to complete the work in an incompletely visible environment, so that it is not easy to cultivate an excellent welder.
The upgraded welding mask can have additional trouble at the job site, and if a plurality of welders weld simultaneously on the site, the photosensitive element can be affected by other light sources, so that the color depth of the variable glass or the transmission type liquid crystal screen is not required at that time.
It can be seen that, in any version, the existing welding mask can only partially filter and block the strong visible light, infrared ray and ultraviolet ray generated during welding by virtue of the color depth change of the shading lens, and can inevitably cause irreversible damage to eyes.
Disclosure of Invention
In order to solve the problems, the invention provides a method for realizing a welding mask, which is completely different from the design principle of the existing welding mask and aims to fundamentally solve the defects of the existing welding mask and the injury to eyes.
In order to achieve the above object, the present invention provides the following technical solutions.
The invention can effectively overcome the defects of the existing welding mask, has the advantages of clear watching of the welding line during welding, real-time control of the welding line quality, remote monitoring, remote guidance and remote watching training, and can effectively protect eyes from being damaged most importantly.
The invention provides a welding mask design method integrating an ultrasonic imaging technology, a VR display technology and a mobile communication technology.
It is known that the eye can see an object because the visible light reflected by the object is imaged on the fundus.
It is also known that ultrasound waves are "imaged" by reflection off of the surface of an object, such as a bat's perception of the size, shape and orientation of an object by ultrasound waves; still like the ultrasonic wave fingerprint lock under the screen of iPhone (fig. 1), ultrasonic sensor places in the cell-phone screen as a fingerprint identification subassembly and is used for detecting fingerprint information, and the ridge and the valley of fingerprint can reflect ultrasonic signal (fig. 2), and the ultrasonic signal who reflects back converts the signal of telecommunication into the signal of telecommunication output, and the signal of telecommunication can form the fingerprint image after being analyzed by the algorithm. These two examples demonstrate the basic principles and processes of ultrasound imaging.
The invention utilizes ultrasonic imaging, then the image is rendered and transmitted to VR glasses according to the proportion of 1:1, and the real-time state of weldments, welding seams and welding seams can be seen clearly on the screen of the VR glasses when the VR glasses are worn, and the damage of strong light, infrared rays and ultraviolet rays to eyes is avoided.
Furthermore, the penetration capability of ultrasonic waves is utilized, flaw detection can be carried out on the welding line, and the internal quality of the welding line is observed in VR glasses at any time.
Furthermore, the 4G or 5G communication module is embedded, so that the images of the welding process can be transmitted to the server from time to time, and the monitoring of the welding process at the background is facilitated, and the quality control, the remote technical guidance and the remote observation and training are realized.
The ultrasonic VR welding mask consists of a helmet, a protective mask, an ultrasonic probe, a processor module and VR glasses; the processor module consists of a microcontroller, a memory chip, a mobile communication module and a battery.
Optionally, the helmet is worn on the head and has an adjusting function and a fixing function. The adjusting function is to adjust the size of the head circumference, and the fixing function is to fix the protective cover and other components.
Optionally, the face shield and the neck can be effectively shielded by the face shield, and the face shield has the functions of heat insulation, flame retardance, drop resistance and impact resistance. Preferably, the material of the protective mask is high-quality PC material polycarbonate, and the outer surface of the protective mask is coated with a composite coating which reflects infrared rays and ultraviolet rays.
Optionally, the core of the ultrasonic probe is a wafer made of a ceramic material with a piezoelectric effect, a voltage short pulse is applied to two poles of the piezoelectric wafer, the wafer is elastically deformed to generate elastic oscillation due to the piezoelectric effect, and the thickness of the wafer is appropriately selected to obtain an elastic wave, i.e., an ultrasonic wave, in a required ultrasonic frequency range.
The ultrasonic probe emits ultrasonic beams, the ultrasonic beams are reflected after reaching the surface of the object, the time difference of the reflection of different surfaces received by the probe is different, and a 3D image of the surface of the object is formed through calculation and composition calculation of the processor.
When flaw detection of the weld joint is carried out, the corresponding time of a flaw reflection echo is measured, the vertical depth or the horizontal distance from the flaw to the incident point of the probe can be calculated according to the sound velocity of a welding material, the depth distribution of the flaw in the weld joint is obtained, and then the processor is used for carrying out image reconstruction, so that a 3D image of the flaw in the weld joint can be obtained.
Optionally, the processor module is a PCB circuit board with a Type-C interface, and the PCB circuit board is composed of a power supply, a microcontroller, and a memory chip.
Optionally, the mobile communication module is an independent PCB circuit board composed of a 4G or 5G communication integrated circuit, a peripheral circuit and an antenna, and may also be integrated on the processor module.
Optionally, the battery is a rechargeable lithium polymer lithium ion battery with a capacity of 3000mAh-5000 mAh.
Optionally, the VR glasses are a display device for ultrasonic imaging, and the reason why the VR glasses are selected as the display device is as follows.
The invention adopts ultrasonic to sense the object to image, but not the light reflected on the eyeground to image, the VR glasses can just simulate the three-dimensional space of the visual angle of human eyes, and the object seen in the VR glasses has the same size and space position as the real object.
VR glasses have fine immersion nature and closure, the injury of highlight, infrared ray and splash when effectively avoiding the welding.
Compared with the VR glasses in the real sense, the VR glasses in the invention have simpler functions, have low requirements on the resolution and color saturation of a screen, do not need a battery, and do not need entertainment options such as gravity induction, a gyroscope, sound effect and the like.
Optionally, the configuration is simplified, the glasses are thinner in thickness and smaller in size, a short-focus optical system is adopted, special adjustment is performed on myopia groups, 600-degree diopter adjustment is supported, left and right eyes can be independently modified, an independent LCD display screen is adopted, and 1920 × 1080 resolution is achieved.
The invention discloses a method for realizing an ultrasonic VR welding mask, which comprises the following steps: the ultrasonic probe emits ultrasonic beams, the ultrasonic beams are reflected after reaching the surface of the weldment, the time difference of the reflection of different surfaces received by the probe is different, and a 3D image of the surface of the weldment is generated through calculation and composition calculation of the processor; the vertical depth or the horizontal distance from the defect to the incident point of the probe can be calculated according to the sound velocity of the welding material, the depth distribution of the defect in the welding seam is obtained, and then a processor is used for image reconstruction, so that a 3D image of the defect in the welding seam can be obtained; the processor superimposes the 3D image of the internal defect of the welding seam reconstructed by the image on the 3D image of the surface of the weldment and transmits the image to VR glasses; the image of the welding process can be transmitted to the server through the 5G communication module at any time, so that the control quality, the remote technical guidance and the remote observation and training in the background monitoring of the welding process are facilitated.
The technical scheme provided by the invention can have the following beneficial effects: the invention depends on the ultrasonic imaging technology, radically gets rid of the direct vision of the luminous point by human eyes, and radically avoids the damage of the eyes by strong visible light, ultraviolet rays and infrared rays; the ultrasonic waves form images on the surface of an object, the influence of high-brightness visible light at the center of a welding spot is effectively avoided, the images are very clear, and the welding is easy as caulking; the ultrasonic wave has the penetrating ability, and the welding part can be subjected to real-time flaw detection operation by utilizing the penetrating ability; by embedding a 4G or 5G communication module, the image of the welding process can be transmitted to a server from time to time for use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention by way of illustration.
FIG. 1 illustrates a principle diagram of ultrasonic fingerprint under a screen.
Fig. 2 is a fingerprint ultrasonic sensing diagram.
Fig. 3 is a schematic view of a helmet visor.
Fig. 4 a schematic view of an outer side of VR glasses.
Fig. 5 VR glasses inside view.
Figure 6 is a simplified processor architecture.
FIG. 7 ultrasonic VR welding mask schematic
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.
The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Alternatively, fig. 3 is a schematic diagram illustrating a helmet, face shield and ultrasound probe combination according to an exemplary embodiment. As shown, this part is composed of a helmet 1, a face shield 2, a helmet fastener 3, and an ultrasonic probe 4.
Optionally, the helmet 1 is made of ABS (acrylonitrile butadiene styrene), and has the characteristics of impact resistance and corrosion resistance; the helmet is provided with a head band with an adjustable fastener on the inner side, is comfortable to wear and is suitable for various head circumferences.
Optionally, a sliding clamping groove is designed at the front part of the helmet and used for accommodating the ultrasonic probe 4; the helmet is designed with a swivel fastener on both sides for mounting and adjusting the visor 2.
Optionally, the mask material is polycarbonate, and the mask material is high-temperature resistant and impact resistant; the mask is coated with infrared-reflecting and ultraviolet-reflecting coating materials for blocking infrared and ultraviolet radiation.
Optionally, the ultrasonic probe 4 is designed as a separate component and is disposed on a sliding slot in the front of the helmet.
Fig. 4 is a schematic diagram of VR glasses shown in accordance with an example embodiment.
Optionally, the 5 materials of frame of VR glasses select high-quality PC material, the eye-shade part selects skin-friendly protein leather material, Type-C interface 6 designs on one side VR glasses leg.
Optionally, the short-focal-length optical lens module 7 in fig. 5 is designed to be double-lens, and for convenient use, the diopter of the single eye independent myopia can be adjusted by 600 degrees, and the pupil distance can be adjusted in a self-adaptive manner.
Optionally, the display portion of the VR glasses uses a separate LCD screen, 1920 × 1080 resolution.
It is known that the VR glasses body part only includes the glasses frame, the short focus optical lens group, the LCD display screen, so the thickness of the VR glasses body part is not more than 35mm, and the weight is not more than 150 g.
FIG. 6 is a schematic diagram illustrating a processor unit in accordance with an example embodiment.
As shown in fig. 6, the processor unit is designed to be composed of a processor 8, a microcontroller 9, a memory 10, a 5G communication module 11, a battery 12, and a Type-C interface 13.
The processor 8 is designed for this embodiment to have a separate housing, and optionally, the processor may be designed integrally with the helmet.
The battery 12 supplies power to the ultrasonic probe 4 and VR glasses of the present embodiment in addition to the main body processor.
The Type-C interface 13 is not only a data input/output interface, but also an input/output interface of a power supply.
In this embodiment, after the battery 12 is powered, the two poles of the piezoelectric wafer made of the core ceramic material of the ultrasonic probe 4 are applied with short pulses of voltage, and due to the piezoelectric effect, the wafer is elastically deformed to generate elastic ultrasonic waves.
The ultrasonic wave is an ultrasonic beam, the ultrasonic beam is reflected after reaching the surface of the weldment, the time difference of the reflection of different surfaces received by the probe is different, and a 3D image of the surface of the weldment is formed through calculation and composition calculation of the processor 8.
The processor 8 transmits the 3D image of the object surface formed by calculation and composition calculation to VR glasses, and the 3D image of the object surface can be seen by wearing the VR glasses.
The VR glasses are display equipment for ultrasonic imaging, the VR glasses can well simulate the three-dimensional space of the visual angle of human eyes, and objects seen in the VR glasses have the same size and spatial position as real objects.
Furthermore, the ultrasonic wave has the penetrating capacity, can synchronously carry out defect detection on the welding seam during welding, and ensures the welding precision and efficiency.
The principle of flaw detection of the weld joint flaw is to measure the time corresponding to the reflected echo of the flaw, calculate the vertical depth or horizontal distance from the flaw to the incident point of the probe according to the sound velocity of the welded material, obtain the depth distribution of the flaw from the inside of the weld joint, and then use the processor to reconstruct the image, so as to obtain the 3D image of the inside flaw of the weld joint.
And the processor 8 overlays the 3D image of the internal defect of the welding seam reconstructed by the image on the 3D image of the surface of the weldment and synchronously observes the quality of the welding seam.
Furthermore, the whole welding process can be transmitted to VR glasses, images of the welding process can be transmitted to a server through a 5G communication module, and monitoring of the welding process at the background is facilitated, so that quality control, remote technical guidance and remote observation and training are achieved.
The foregoing embodiments are for convenience of illustration of the technical concept, the ultrasonic VR welding mask in the present invention is divided into five parts, namely, a helmet, a face shield, an ultrasonic probe, VR glasses and a processor.
Preferably, the ultrasonic VR welding helmet is designed in an integrated mode, namely the ultrasonic probe is integrated at the front part of the helmet, the processor is integrated at the middle and rear part of the helmet, and VR glasses are integrated at a proper position of the helmet.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An implementation method of an ultrasonic VR welding mask provides a welding mask design method integrating an ultrasonic imaging technology, a VR display technology and a mobile communication technology.
2. The ultrasonic VR welding helmet of claim 1, consisting of a helmet, a protective mask, an ultrasonic probe, a processor module, and VR glasses; the processor module consists of a microcontroller, a memory chip, a mobile communication module and a battery.
3. The ultrasonic imaging technique of claim 1, in the present invention comprises weldment surface imaging and weld seam internal flaw detection imaging.
4. A weld surface imaging according to claim 3 wherein the ultrasonic probe emits ultrasonic beams which are reflected after reaching the weld surface, the difference in the time between the different surface reflections received by the probe being different, and the calculations and patterning carried out by the processor produce a 3D image of the weld surface.
5. The weld seam internal flaw detection imaging method according to claim 3, wherein the vertical depth or the horizontal distance from the flaw to the probe incidence point can be calculated according to the sound velocity of the welding material, so that the depth distribution of the flaw from the inside of the weld seam is obtained, and then the 3D image of the flaw in the weld seam can be obtained by utilizing the processor to perform image reconstruction.
6. The VR display technology of claim 1, wherein the VR glasses are ultrasonic imaging display devices and the processor transmits the 3D image of the image reconstructed weld internal defect superimposed on the 3D image of the weldment surface to the VR glasses.
7. The mobile communication technology of claim 1, wherein the images of the welding process are transmitted to the server from time to time through the 4G or 5G communication module, thereby facilitating monitoring of the welding process in the background for quality control, remote technical guidance and remote viewing training.
8. The helmet according to claim 2, characterized in that the helmet material is selected from ABS or other materials that meet the requirements, and is impact-resistant and corrosion-resistant; the inner side of the helmet is provided with a head band with an adjustable fastener, so that the helmet is comfortable to wear and suitable for various head circumferences; a sliding clamping groove is arranged at the front part of the helmet and used for arranging the ultrasonic probe; the two sides of the helmet are provided with rotary fasteners for arranging and adjusting the protective mask.
9. A protective mask according to claim 2, wherein the mask material is selected from polycarbonate or other materials that meet the requirements for high temperature resistance and impact resistance; the mask is covered with an infrared-reflective and ultraviolet-reflective coating material for blocking infrared and ultraviolet radiation.
10. The VR glasses of claim 2, wherein the frame of the VR glasses is made of PC material, and the eyeshade is made of skin-friendly protein leather; the VR glasses adopt a short-focal-length optical lens module as a biplate design, so that the VR glasses are convenient to use, and can be independently adjusted by 600-degree diopters for single eye myopia, and the interpupillary distance can be adaptively adjusted; the display part of the VR glasses adopts a separate LCD display screen with 1920 × 1080 resolution.
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| CN202010720262.0A CN111743691A (en) | 2020-07-24 | 2020-07-24 | Implementation method of ultrasonic VR welding mask |
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| CN202010720262.0A CN111743691A (en) | 2020-07-24 | 2020-07-24 | Implementation method of ultrasonic VR welding mask |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101277A (en) * | 2007-08-10 | 2008-01-09 | 华南理工大学 | High-resolution welding seam supersonic image-forming damage-free detection method and detection system |
| US20140165730A1 (en) * | 2011-05-10 | 2014-06-19 | Edison Welding Institute | Portable matrix phased array spot weld inspection system |
| CN107912061A (en) * | 2015-03-06 | 2018-04-13 | 伊利诺斯工具制品有限公司 | Sensor for welding aids in head-mounted display |
| CN107980153A (en) * | 2015-03-09 | 2018-05-01 | 伊利诺斯工具制品有限公司 | The method and apparatus of the visual information associated with welding operation is provided |
| CN209154199U (en) * | 2017-11-23 | 2019-07-26 | 华中科技大学 | Infrared detection auxiliary welding intelligent helmet based on AR |
| US10701270B1 (en) * | 2014-05-15 | 2020-06-30 | Thomas J. LaFlech | Camera display welder's helmet |
-
2020
- 2020-07-24 CN CN202010720262.0A patent/CN111743691A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101277A (en) * | 2007-08-10 | 2008-01-09 | 华南理工大学 | High-resolution welding seam supersonic image-forming damage-free detection method and detection system |
| US20140165730A1 (en) * | 2011-05-10 | 2014-06-19 | Edison Welding Institute | Portable matrix phased array spot weld inspection system |
| US10701270B1 (en) * | 2014-05-15 | 2020-06-30 | Thomas J. LaFlech | Camera display welder's helmet |
| CN107912061A (en) * | 2015-03-06 | 2018-04-13 | 伊利诺斯工具制品有限公司 | Sensor for welding aids in head-mounted display |
| CN107980153A (en) * | 2015-03-09 | 2018-05-01 | 伊利诺斯工具制品有限公司 | The method and apparatus of the visual information associated with welding operation is provided |
| CN209154199U (en) * | 2017-11-23 | 2019-07-26 | 华中科技大学 | Infrared detection auxiliary welding intelligent helmet based on AR |
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Application publication date: 20201009 |