CN-116075776-B - Device and method for observing structure

CN116075776BCN 116075776 BCN116075776 BCN 116075776BCN-116075776-B

Abstract

The subject of the invention is to use the image of the high performance video camera to heat or cool the structure body to the temperature outside the limit of the use temperature of the high performance video camera, and observe the change of the structure body caused by the restoration to normal temperature in detail. The structure observation device is characterized by comprising a camera housing having a rectangular three-dimensional shape and a glass window having heat-resistant and/or cold-resistant glass on at least 1 side of the three-dimensional shape, a heat-insulating wall covering the camera housing except the glass window, a fluid supply port and a fluid discharge port for circulating cooling or heating fluid in at least the camera housing among the camera housing and the inside of the wall, and a camera arranged in the camera housing, wherein the camera captures the structure outside the camera housing as a still image or a moving image from the glass window, and externally outputs or internally stores captured image data.

Inventors

Grand history between rock
SATO KENTARO
TOI SHINJI
Shi Zhijia generation
Sasagome Shohei
Akiyama yuhei
TANIGUCHI TAKASHI

Assignees

杰富意钢铁株式会社

Dates

Publication Date: 20260508
Application Date: 20210719
Priority Date: 20200908

Claims (7)

1. An observation device for a structure is characterized by comprising: a camera housing having a rectangular three-dimensional shape, and a glass window having heat-resistant and/or cold-resistant glass on at least 1 surface of the three-dimensional shape; the wall of the heat-insulating property, the heat insulating wall covers the camera housing except the glass window; A fluid supply port and a fluid discharge port that circulate a cooling or heating fluid within at least the camera housing, among the camera housing and the interior of the wall; A camera disposed in the camera housing, for capturing a still image or a moving image from the glass window, and for externally outputting or internally storing data of the captured image; A lighting fixture disposed around a lens of the camera in the camera housing, and A tubular antireflection material disposed between the lens and the lighting fixture in a direction perpendicular to an optical axis of the lens, at least inside the glass window, The glass window has a double-layer structure consisting of an inner window and an outer window, The anti-reflection material arranged on the inner side of the inner window is a material with constant thickness along the length direction, The antireflection material disposed between the outer window and the inner window is a tapered material having a thickness that increases toward the outer window.
2. The observation device for a structure according to claim 1, wherein, The camera housing has a double-layer structure composed of an inner case and an outer case, The inner and outer cases have walls of the heat insulating property, respectively.
3. The observation device for a structure according to claim 1 or 2, comprising a support frame that supports the camera housing so that an orientation can be changed and a support height can be changed.
4. A viewing device for a structure according to claim 3, wherein the support frame supports the structure so as to be able to be photographed by the camera.
5. The observation device for a structure according to claim 3 or 4, wherein the support frame has an engaging portion that can engage with the carrier.
6. The viewing device of a structure of any one of claims 1 to 5, wherein the structure is an exterior panel member of an automotive body.
7. A method for observing a structure, characterized in that the structure observation device according to any one of claims 1 to 6 is used to take an image of the structure before and after heating or cooling and during heating or cooling by a camera, and changes in the structure before and after heating or cooling and during heating or cooling are observed from the taken image.

Description

Device and method for observing structure Technical Field The present invention relates to an observation apparatus and an observation method for observing changes in a structural body such as a body member of an automobile at high and low temperatures. Background As a part of environmental measures, weight reduction of a vehicle body is being advanced for the purpose of improving fuel efficiency of an automobile (reducing CO 2 emissions). Body parts called outer panel parts are arranged on the outside of automobiles, including doors, roofs, hoods (Bonnet), fenders (fender), and tailgates (tailgates). The weight reduction (panel) of these outer panel members has also been studied, and the effect of the weight reduction of the plate material is remarkable because the outer panel member is a member having a larger projected area than other vehicle body members in particular. However, the outer panel member tends to be reduced in rigidity due to the reduction in thickness of the plate material, and recently, deformation of the outer panel constituting the outer panel member occurs due to heat at the time of paint sintering. Wherein the temperature applied to the outer panel member during sintering is about 200 ℃. In general, in the coating and sintering process, the vehicle body during production passes through a high-temperature furnace at about 200 ℃, and the heat resistance of the imaging device and the measuring equipment cannot be ensured, so that the cause of the occurrence of thermal deformation of the outer panel thereof is unknown. As shown in fig. 5, the outer panel member is generally formed by joining peripheral portions of the outer panel OP and the inner panel IP to each other by welding or the like, and a reinforcing member RP is disposed between the rear surface of the outer panel OP and the inner panel IP in order to secure rigidity of the outer panel OP, the inner panel IP and the reinforcing member RP are joined by welding or the like, and the outer panel OP and the reinforcing member RP are bonded by a mastic (MASTIC AGENT) M. The paste agent M has a property of being foamed and expanded to solidify into a rubber-like shape by heat at the time of baking of the coating while adapting to the shape of the member in a semisolid (toothpaste-like softness) state before the coating, and is capable of suppressing vibration of the outer panel OP by maintaining the property close to the viscoelasticity of rubber at ordinary temperature after cooling, and supporting the outer panel OP by bonding with the reinforcing member RP and the outer panel OP, thereby improving the rigidity of the outer panel OP. The cement agent M is thought to be rubbery by solidification from semi-solid during the sintering process and to undergo expansion and shrinkage to contribute to thermal deformation of the outer panel member, particularly the outer panel OP, but the details are not known since the situation at the time of heating cannot be observed. However, as conventional findings that deformation due to heating of an outer panel member can be observed, for example, techniques described in patent documents 1 to 3 below are known. Patent document 1 discloses a method for observing thermal deformation of a high-temperature roller on a chassis dynamometer (chassis dynamometer) that allows an automobile to run on the roller in a simulated manner. In this method, a plurality of radiation thermometers are used, the thermal deformation degree of the roller is calculated from the measured values, and by feeding back it to the test conditions, the measurement error due to thermal deformation is reduced, making it possible to measure with high accuracy. Patent document 2 discloses a system for managing quality of a coated surface of an automobile. In this system, defects on the coated surface are recorded as images by a camera on the vehicle body after the coating is completed, and the images are accumulated as a database, so that it is possible to compare the difference between the current coated surface and the coated surface having degraded quality due to defects or the like generated in the past. Patent document 3 relates to a device for detecting an obstacle in front of a vehicle, which uses a millimeter wave radar in combination with an infrared camera. Thermal detection in the device is necessary for determining whether an obstacle is a living being. Prior art literature Patent literature Patent document 1 Japanese patent No. 5358331 Patent document 2 Japanese patent application laid-open No. 2009-066514 Patent document 3 Japanese patent No. 4427771 Disclosure of Invention Problems to be solved by the invention However, since all of the devices and imaging apparatuses used for measurement in these techniques are used in an environment of "normal temperature", the observation device can be operated easily even if the measurement object is at a high temperature. In contrast, in the coating and sintering process of automob