CN112378518B - Multifunctional test instrument based on infrared thermal imaging - Google Patents
Multifunctional test instrument based on infrared thermal imaging Download PDFInfo
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- CN112378518B CN112378518B CN202011011180.5A CN202011011180A CN112378518B CN 112378518 B CN112378518 B CN 112378518B CN 202011011180 A CN202011011180 A CN 202011011180A CN 112378518 B CN112378518 B CN 112378518B
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- 238000012360 testing method Methods 0.000 title claims abstract description 15
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- 238000003384 imaging method Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 230000001174 ascending effect Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0205—Mechanical elements; Supports for optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/085—Optical arrangements having a through-hole enabling the optical elements to fulfil an additional optical function, e.g. mirrors or gratings having a through-hole for a light collecting or light injecting optical fiber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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Abstract
The invention discloses a multifunctional test instrument based on infrared thermal imaging, which comprises a shell, a rotary block, a semicircular shading cover and a positioning mechanism, wherein the rotary block is rotatably arranged at the front end of the shell in a circular shape, the semicircular shading cover is arranged at the lower part of the front end of the shell and positioned at the outer side of the rotary block, the positioning mechanism enables the rotary block to be elastically positioned in the circumferential direction, a high-definition camera and an infrared camera are arranged on the rotary block, when an imaging device is positioned in a high-definition camera mode by the positioning mechanism, the high-definition camera is positioned at the upper part of the rotary block, and the infrared camera at the lower part of the rotary block is shaded by the shading cover; when the positioning mechanism enables the imaging device to be positioned in the infrared camera shooting mode, the infrared camera is positioned at the upper part of the rotating block, and the shading cover shields the high-definition camera at the lower part of the rotating block. The invention can be conveniently switched between a daytime mode and a nighttime mode, thereby realizing all-weather shooting of devices such as high-voltage lines and the like needing to be overhauled, further facilitating the overhaul personnel to carry out scientific judgment through shot images and improving the overhaul efficiency.
Description
Technical Field
The invention relates to the technical field of detection of related detection through camera shooting, in particular to a multifunctional test instrument based on infrared thermal imaging.
Background
In the prior art, some detection needs to be evaluated and detected by observing an appearance image, for example, an outdoor high-voltage line and the like are high in position, so that maintenance personnel usually climb on the high-voltage line after ascending to perform visual inspection. The method is not only low in efficiency, but also poor in the safety of maintenance personnel. Along with the development of technique, people are applied to the maintenance of high-tension line with unmanned aerial vehicle technique of taking photo by plane, shoot the image of high-tension line through unmanned aerial vehicle promptly, then the maintainer judges through watching the image of shooing, can raise the efficiency on the one hand, and on the other hand can ensure maintainer's safety.
However, the method still has the following defects: firstly, the time is ordinary high definition digtal camera when loading on the unmanned aerial vehicle, its intelligence is worked under daytime light sufficient circumstances, in case meet evening dark light, even dark evening in the day, then can't shoot, though there is the infrared camera device who is applicable to take a photo night among the prior art, but, an unmanned aerial vehicle for taking a photo by plane is small usually, correspondingly, its payload is less, consequently, high definition digtal camera device and infrared camera device are installed simultaneously to the inappropriateness on unmanned aerial vehicle, or need change into bigger unmanned aerial vehicle, thereby can increase the maintenance cost. Particularly, once an operator does not switch between the two shooting modes in time, shooting failure is easily caused, and normal operation of maintenance is further influenced.
Disclosure of Invention
The invention aims to provide a multifunctional test instrument based on infrared thermal imaging, which can be conveniently switched between a daytime mode and a nighttime mode, so that all-weather shooting is realized on devices such as a high-voltage line to be overhauled, and furthermore, the overhaul personnel can conveniently judge scientifically through shot images, so that the overhaul efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a multi-functional test instrument based on infrared thermal imaging, includes the casing, is equipped with high definition digtal camera on the casing, still be equipped with infrared camera and mode switching mechanism on the casing, mode switching mechanism makes image device can switch between high definition mode of making a video recording and infrared mode of making a video recording.
Firstly, the invention arranges a high-definition camera, an infrared camera and a mode switching mechanism on a shell, and the mode switching mechanism enables the imaging device to be switched between a high-definition shooting mode and an infrared shooting mode. Therefore, when the light is bright in the daytime, the imaging device can work in a high-definition camera shooting mode through the mode switching mechanism, and the high-definition camera can work normally at the moment, so that images of devices such as a high-voltage line and the like can be shot; when the conditions of dark light such as night and the like are met, the imaging device can work in an infrared camera shooting mode through the mode switching mechanism, and the infrared camera at the moment can shoot infrared images of devices such as a high-voltage line and the like. The maintainer can judge the shot image so as to conveniently determine whether the devices such as a high-voltage line and the like need to be updated and maintained, and further improve the overhauling efficiency.
According to the invention, the high-definition camera and the infrared camera are arranged, and when the mode switching mechanism is adopted, the proper camera can be selected according to the brightness of ambient light, so that all-weather work is realized. Compared with the prior art in which two sets of camera systems are arranged, the unmanned aerial vehicle has the advantages that only one set of image processing module, display module, storage module and the like is needed to process image signals shot by the two cameras, so that the size can be reduced, the structure is simplified, the cost is reduced, and the unmanned aerial vehicle can be used on a small unmanned aerial vehicle in a period. Even made as a portable device for convenient hand-held operation.
Preferably, the mode switching mechanism comprises a circular rotating block rotatably arranged at the front end of the shell, a semicircular shading cover arranged at the lower part of the front end of the shell and positioned at the outer side of the rotating block, and a positioning mechanism for elastically positioning the rotating block in the circumferential direction, wherein the high-definition cameras and the infrared cameras are arranged on the rotating block, the high-definition cameras and the infrared cameras are symmetrically distributed on the rotating block in the vertical direction, when the imaging device is positioned in the high-definition camera mode by the positioning mechanism, the high-definition cameras are positioned at the upper part of the rotating block, and the infrared cameras at the lower part of the rotating block are shaded by the shading cover; when the positioning mechanism enables the imaging device to be positioned in the infrared camera shooting mode, the infrared camera is positioned at the upper part of the rotating block, and the shading cover shields the high-definition camera at the lower part of the rotating block.
In this scheme, we can make the high definition digtal camera and infrared camera's position exchange from top to bottom through manual control rotation turning block to conveniently make image device make a round trip to switch between high definition mode of making a video recording and infrared mode of making a video recording. That is, when the first camera is required to work, the second camera can be rotated to the lower part so as to be shielded by the shading cover and not to be functional, and at the moment, the invention only displays, records or stores the image shot by the first camera.
In particular, the positioning mechanism can accurately position the imaging device in an infrared shooting mode or a high-definition shooting mode.
Preferably, the positioning mechanism comprises arc-shaped positioning grooves symmetrically arranged on the left side and the right side of the front end of the shell, and arc-shaped positioning strips arranged on the edges of the left side and the right side of the rotating block extending out of the shell part and positioned in the corresponding positioning grooves.
When the high-definition shooting mode and the infrared shooting mode need to be switched, the edge of the half rotating block exposed above the shading cover can be held, then the rotating block is rotated towards one side, and when the rotating block is rotated in place, the positioning strips on the two sides of the rotating block are reliably positioned in the positioning groove of the shell. The arc-shaped positioning strip facilitates the rotation of the rotating block.
Preferably, the positioning strip is made of silicon rubber, two end faces of the positioning groove incline from inside to outside to the middle to form a main guide inclined plane, and two end faces of the positioning strip incline from inside to outside to the middle to form an auxiliary guide inclined plane.
The positioning strip made of silicon rubber has good compressibility and elasticity. When the rotating block rotates to one side, the main guide inclined surface at the end part of the positioning groove can extrude the auxiliary guide inclined surface at the end part of the positioning strip, so that the positioning strip is radially compressed, and the rotating block can rotate conveniently. When the turning block rotates to the right place, the positioning strip is elastically restored to enter the positioning groove, so that the positioning of the turning block is realized, and the switching between the high-definition camera shooting mode and the infrared camera shooting mode is further realized. It can be understood that the positioning strip made of silicon rubber has simple structure, low cost and convenient operation.
Preferably, the left side and the right side of the rotating block are provided with telescopic grooves, the positioning strips are arranged in the corresponding telescopic grooves in a radially movable manner, and the bottoms of the telescopic grooves are provided with elastic elements which are pressed against the bottom surfaces of the inner sides of the positioning strips.
When the rotating block needs to rotate, the positioning strips on the two sides can be retracted into the telescopic groove by overcoming the elasticity of the elastic element only by pressing the positioning strips with hands. When the rotating block rotates in place, the elastic force of the elastic element enables the positioning strip to pop out and be positioned in the positioning groove.
As preferred, be equipped with between turning block and casing and make the positive pivoted single direction drive structure of turning block, the left and right sides of turning block is equipped with flexible recess, on the direction of rotation of turning block, the rear end of location strip is rotated through the pivot and is connected in flexible recess, is equipped with the torsional spring in the pivot, torsional spring drive location strip rotates, makes the front end of location strip rotate out flexible recess and get into in the constant head tank.
In this scheme, the one end of location strip is rotated and is connected in flexible recess. Therefore, when the rotating block needs to rotate, the other end of the positioning strip can be pressed by a hand, so that the positioning strip overcomes the torsion of the torsion spring and retracts into the telescopic groove, and the rotating block can be conveniently rotated at the moment. When the rotating block rotates in place, the other end of the positioning strip rotates outwards under the action of the elastic force of the torsion spring and enters the positioning groove to be positioned, and the rotating block is prevented from continuously rotating forwards. Because the unidirectional transmission structure is arranged between the rotating block and the shell, the reverse rotation of the rotating block can be prevented, and the reliable positioning of the rotating block in the circumferential direction can be realized.
Preferably, the high-definition camera and the infrared camera are fixedly arranged at the front end of the shell, the high-definition camera and the infrared camera are symmetrically distributed at the front end of the shell from top to bottom, the mode switching mechanism comprises a shading cover which is rotatably arranged at the front end of the shell, the shading cover comprises a rotating sleeve which is sleeved on the shell, a light transmission hole is formed in the shading cover, the shading cover is provided with a first camera shooting position and a second camera shooting position, and when the shading cover is located at the first camera shooting position, the light transmission hole of the shading cover corresponds to the high-definition camera; when the shading cover rotates to the second camera shooting position, the light transmission hole of the shading cover corresponds to the infrared camera.
In this scheme, high definition digtal camera and infrared camera are fixed and set up the casing front end, and barrel-shaped shading lid then rotates to be connected on the casing. Like this, when we need make a round trip to switch between high definition mode of making a video recording and infrared mode of making a video recording, can directly rotate the shading lid, make the shading lid make a round trip to switch between first position of making a video recording and the second position of making a video recording, and then make the camera that needs work aim at the light trap of shading lid, and another camera then can effectively be sheltered from by the shading lid.
It can be understood that the entire light-shielding cover is completely exposed, thereby facilitating the rotating operation.
Preferably, the mode switching mechanism comprises an inner gear ring arranged on the inner side of a rotating sleeve of the shading cover, a driving gear arranged at the front end of the shell and meshed with the inner gear ring, a driving motor arranged in the shell and in transmission connection with the driving gear, and a controller arranged in the shell and used for controlling the driving motor, wherein a brightness sensor used for sensing ambient light is arranged on the shell, the brightness sensor is electrically connected with the controller, when the brightness sensor detects that the ambient light is higher than a set value, the controller enables the driving motor to rotate, and then the shading cover is driven to rotate to the first shooting position through the driving gear; when the brightness sensor detects that the brightness of the ambient light is lower than a set value, the driving motor enables the shading cover to rotate to the second shooting position.
The luminance sensor can sense the luminance of ambient light, and when meetting night or the luminance of other light is less than the condition of setting value, the controller can make driving motor work to make the shading lid rotate to the second position of making a video recording, and if the bright condition of light in daytime, the controller makes the shading lid rotate to first position of making a video recording through driving motor. Through the combination of the driving motor and the brightness sensor, the automatic control of the rotation of the shading cover can be conveniently realized.
Preferably, a locking head driven by a push-pull electromagnet is arranged at the front end of the shell, two conical positioning holes which are narrowed from inside to outside are arranged on the shading cover, the two positioning holes are uniformly distributed in the circumferential direction, and when the shading cover is rotated to the first or second shooting position by a driving motor, the push-pull electromagnet acts, so that the locking head is inserted into the corresponding positioning hole.
The push-pull electromagnet can ensure that the locking head is conveniently inserted into the positioning hole of the shading cover, thereby realizing the reliable positioning of the shading cover. And two positioning holes which are uniformly distributed in the circumferential direction are arranged, so that the accurate positioning of the shading cover at the first and second shooting positions can be conveniently realized by using one push-pull electromagnet.
Preferably, the shell comprises a handle, a threaded hole is formed in the lower end of the handle, a connecting column is connected to the threaded hole in an internal thread mode, two connecting holes penetrating through the connecting column are formed in the lower end face of the connecting column, two ends of a suspension rope penetrate through the corresponding connecting holes from outside to inside respectively, and a rope knot is arranged at the end portion, entering the threaded hole of the handle, of the suspension rope.
The housing of the present invention includes a handle to make a portable structure, and the hanging cord is convenient for hanging and storing after use. In particular, two ends of the suspension rope entering the threaded hole of the handle are provided with knots. Therefore, the two ends of the suspension rope can penetrate through the connecting holes of the connecting column firstly, and then the suspension rope is knotted to form a rope knot so as to prevent the suspension rope from falling out of the connecting holes, at the moment, the connecting rotary threads are connected into the threaded holes of the Barsa, and the suspension rope can be conveniently and reliably connected with the handle.
Therefore, the invention has the following beneficial effects: can conveniently switch between daytime mode and night mode to realize all-weather shooting to devices such as the high-tension line that need overhaul, and then make things convenient for the maintainer to carry out scientific judgement through the image of shooting, with the efficiency that improves the maintenance.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an arrangement structure of a high-definition camera and an infrared camera on a shell.
Fig. 3 is a schematic view of a connection structure of the lock bar and the lock groove.
Fig. 4 is a schematic view of a connection structure of the lock bar and the turning block.
FIG. 5 is a schematic view of another connection structure of the lock bar and the turning block.
Fig. 6 is a schematic view of another arrangement structure of the high-definition camera and the infrared camera on the shell.
Fig. 7 is a schematic view of a connection structure of the light shielding cover and the housing in fig. 6.
In the figure: 1. the high-definition camera 2, the infrared camera 3, the rotating block 31, the positioning strip 311, the auxiliary guide inclined plane 312, the rotating shaft 32, the telescopic groove 33, the elastic element 4, the shading cover 41, the rotating sleeve 42, the light-transmitting hole 43, the inner gear ring 5, the shell 51, the positioning groove 511, the main guide inclined plane 52, the handle 521, the control switch 53, the connecting column 54, the suspension rope 6, the driving gear 7 and the card inserting sleeve.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1 and 2, the multifunctional test instrument based on infrared thermal imaging comprises a housing 5, wherein a high-definition camera 1, an infrared camera 2 and a mode switching mechanism are arranged on the housing, and the mode switching mechanism can enable an imaging device to be switched between a high-definition camera shooting mode and an infrared camera shooting mode.
When the light is bright in the daytime, the imaging device can work in a high-definition camera shooting mode through the mode switching mechanism, and the high-definition camera can work normally at the moment, so that images of devices such as a high-voltage line and the like can be shot; when the conditions of dark light such as night and the like are met, the imaging device can work in an infrared camera shooting mode through the mode switching mechanism, and the infrared camera at the moment can shoot infrared images of devices such as a high-voltage line and the like. The maintainer can judge the shot image so as to conveniently determine whether the devices such as a high-voltage line and the like need to be updated and maintained, and further improve the overhauling efficiency.
It should be noted that the imaging device of the present invention may be installed on a small unmanned aerial vehicle, so as to take a picture of a device located in high altitude, such as a high voltage line. Of course, the imaging device of the present invention may also take images of devices that are close to the ground and have a low height.
In addition, as an imaging device, the present invention further needs to provide a set of image processing module, display module, storage module, memory card, etc. to process the image signals captured by the two cameras and store the signals. Since the above-described module belongs to the basic structure and the prior art of the image forming apparatus, it will not be described in detail herein.
As a preferable scheme, the mode switching mechanism comprises a rotary block 3 which is rotatably arranged at the front end of the shell in a circular shape, a semicircular shading cover 4 which is arranged at the lower part of the front end of the shell and is positioned at the outer side of the rotary block, and a positioning mechanism which elastically positions the rotary block in the circumferential direction, wherein the high-definition camera and the infrared camera are arranged on the rotary block, and the high-definition camera and the infrared camera are symmetrically distributed on the rotary block from top to bottom, namely, when the rotary block rotates 180 degrees, the positions of the high-definition camera and the infrared camera on the rotary block are interchanged from top to bottom.
Therefore, the rotating block can be rotated through manual control, when the imaging device is positioned in a high-definition shooting mode through the positioning mechanism, the high-definition camera is positioned at the upper part of the rotating block, and the infrared camera at the lower part of the rotating block is shielded by the shading cover at the moment; when the positioning mechanism enables the imaging device to be positioned in the infrared camera shooting mode, the infrared camera is positioned at the upper part of the rotating block, and the shading cover shields the high-definition camera at the lower part of the rotating block. Of course, in order to facilitate the rotation of the rotary block, the front end of the rotary block should protrude out of the housing.
Preferably, the positioning mechanism comprises arc-shaped positioning grooves 51 symmetrically arranged at the left and right sides of the front end of the shell, and arc-shaped positioning strips 31 arranged at the left and right side edges of the rotating block extending out of the front end of the shell part, and the positioning strips are positioned in the corresponding positioning grooves.
When the high-definition shooting mode and the infrared shooting mode need to be switched, the edge of the half rotating block exposed above the shading cover can be held, then the rotating block is rotated towards one side, and when the rotating block is rotated in place, the positioning strips on the two sides of the rotating block are reliably positioned in the positioning groove of the shell. The arc-shaped positioning strip facilitates the rotation of the rotating block.
Further, as shown in fig. 3, the positioning bar is made of elastic silicone rubber, the positioning groove is inclined from inside to outside towards the middle at the front and rear end surfaces in the circumferential direction to form a main guide inclined surface 511, and the two end surfaces of the positioning bar are inclined from inside to outside towards the middle to form an auxiliary guide inclined surface 311. When the rotating block rotates to one side, the main guide inclined surface at the end part of the positioning groove can extrude the auxiliary guide inclined surface at the end part of the positioning strip, so that the positioning strip is radially compressed, and the rotating block can rotate conveniently. When the turning block rotates to the right place, the positioning strip is elastically restored to enter the positioning groove, so that the positioning of the turning block is realized, and the switching between the high-definition camera shooting mode and the infrared camera shooting mode is further realized. It can be understood that the positioning strip made of silicon rubber has simple structure, low cost and convenient operation.
Of course, as shown in fig. 4, the left and right sides of the rotating block may also be provided with telescopic grooves 32, the positioning strips may be radially movably disposed in the corresponding telescopic grooves, and the bottom of the telescopic grooves is provided with elastic elements 33 abutting against the inner bottom surfaces of the positioning strips.
When the rotating block needs to rotate, the positioning strips on the two sides can be retracted into the telescopic groove by overcoming the elasticity of the elastic element only by pressing the positioning strips with hands. When the rotating block rotates in place, the elastic force of the elastic element enables the positioning strip to pop out and be positioned in the positioning groove. The elastic element may be a compression spring or an elastomer such as polyurethane.
In addition, as shown in fig. 5, a one-way transmission structure (not shown) capable of enabling the rotation block to rotate in the positive direction can be arranged between the rotation block and the shell, so that the rotation block can only rotate in one direction relative to the shell. Then set up flexible recess in the left and right sides of turning block, on the direction of rotation of turning block, the rear end of location strip rotates through pivot 312 and connects in flexible recess, is equipped with the torsional spring in the pivot, torsional spring drive location strip rotates, makes the front end of location strip rotate out flexible recess and get into in the constant head tank. That is, the outer side edge of the positioning strip gradually extends out of the telescopic groove from the rear end to the front end.
When the rotating block needs to rotate, the positioning strip can be pressed by hand to extend out of the front end of the telescopic groove, so that the positioning strip overcomes the torsion of the torsion spring and retracts into the telescopic groove, and the rotating block can be conveniently rotated. When the rotating block rotates in place, the other end of the positioning strip rotates outwards under the action of the elastic force of the torsion spring and enters the positioning groove to be positioned, the rotating block is prevented from continuously rotating forwards, and therefore the rotating block is reliably positioned in the circumferential direction.
It should be noted that the one-way transmission structure may adopt a ratchet-pawl mechanism, an overrunning clutch, etc.
As another preferred scheme, as shown in fig. 6 and 7, the high-definition camera and the infrared camera are fixedly disposed at the front end of the housing, and the high-definition camera and the infrared camera are symmetrically disposed at the front end of the housing in a vertical direction, the mode switching mechanism includes a barrel-shaped light shielding cover rotatably disposed at the front end of the housing, the light shielding cover includes a rotating sleeve 41 sleeved on the housing, a light transmitting hole 42 is disposed on the light shielding cover, and the light shielding cover has a first camera position and a second camera position. When the shading cover is positioned at the first camera shooting position, the light transmission hole of the shading cover corresponds to the high-definition camera; when the shading cover rotates to the second camera shooting position, the light transmission hole of the shading cover corresponds to the infrared camera.
When the high-definition camera shooting mode and the infrared camera shooting mode need to be switched back and forth, the shading cover can be directly rotated, so that the shading cover is switched back and forth between the first camera shooting position and the second camera shooting position, the camera needing to work is aligned to the light transmission hole of the shading cover, and the other camera can be effectively shielded by the shading cover.
Because the whole shading cover is completely exposed, the shading cover can be conveniently held by hands to rotate.
Further, the mode switching mechanism may further include an inner gear ring 43 disposed inside the rotating sleeve of the light-shielding cover, a driving gear 6 disposed at the front end of the housing and engaged with the inner gear ring, a driving motor (not shown) disposed in the housing and in transmission connection with the driving gear, and a controller disposed in the housing for controlling the driving motor, wherein a brightness sensor for sensing ambient light is disposed on the housing, and the brightness sensor is electrically connected to the controller.
When meeting night or when the luminance of other light is less than the condition of setting value, the controller can make driving motor work, and then drives the shading lid through the driving gear and rotate to the second position of making a video recording, and if the bright condition of light in daytime, the controller makes the shading lid rotate to first position of making a video recording through driving motor to realize shading lid pivoted automatic control.
Furthermore, a locking head driven by a push-pull type electromagnet can be arranged at the front end of the shell so as to enable the locking head to move back and forth, and correspondingly, two conical positioning holes which are narrowed from inside to outside are arranged on the shading cover and are uniformly distributed in the circumferential direction. When the driving motor rotates the shading cover to the first or second shooting position, the push-pull electromagnet is electrified to act, and the locking head extends upwards so as to be inserted into the corresponding positioning hole. When the shading cover needs to rotate, the push-pull type electromagnet is powered off and reset, and the locking head retracts to withdraw from the positioning hole.
Finally, the shell comprises a handle 52, so that a portable structure is manufactured, a control switch 521 is arranged on the upper portion of the handle, a threaded hole is formed in the lower end of the handle, a connecting column 53 is connected with the threaded hole in an inner thread mode, two connecting holes penetrating through the connecting column are formed in the lower end face of the connecting column, two ends of a suspension rope 54 penetrate through the corresponding connecting holes from outside to inside respectively, a rope knot is arranged at the end portion, entering the threaded hole of the handle, of the suspension rope, and the suspension rope is convenient for hanging and storing of the imaging device after use.
Certainly, the shell can be provided with a card insertion sleeve 7, and a storage card is arranged in the card insertion sleeve so as to store and output files such as shot images and the like, so that the device can continuously work for a long time.
Claims (9)
1. A multifunctional test instrument based on infrared thermal imaging comprises a shell, a high-definition camera is arranged on the shell, it is characterized in that the shell is also provided with an infrared camera and a mode switching mechanism, the mode switching mechanism enables the imaging device to be switched between a high-definition shooting mode and an infrared shooting mode, the mode switching mechanism comprises a rotary block which is rotatably arranged at the front end of the shell in a circular shape, a semicircular shading cover which is arranged at the lower part of the front end of the shell and is positioned at the outer side of the rotary block, and a positioning mechanism which enables the rotary block to be elastically positioned in the circumferential direction, the high-definition camera and the infrared camera are arranged on the rotating block and are vertically and symmetrically distributed on the rotating block, when the imaging device is positioned in a high-definition camera shooting mode by the positioning mechanism, the high-definition camera is positioned at the upper part of the rotating block, and the infrared camera at the lower part of the rotating block is shielded by the shading cover; when the positioning mechanism enables the imaging device to be positioned in the infrared camera shooting mode, the infrared camera is positioned at the upper part of the rotating block, and the shading cover shields the high-definition camera at the lower part of the rotating block.
2. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 1, wherein the positioning mechanism comprises arc-shaped positioning slots symmetrically arranged at the left and right sides of the front end of the housing, and arc-shaped positioning strips arranged at the left and right side edges of the rotating block extending out of the housing portion and positioned in the corresponding positioning slots.
3. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 2, wherein the positioning bar is made of silicon rubber, two end faces of the positioning groove are inclined from inside to outside towards the middle to form a main guide inclined plane, and two end faces of the positioning bar are inclined from inside to outside towards the middle to form a secondary guide inclined plane.
4. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 2, wherein the turning block is provided with telescopic grooves on left and right sides, the positioning strips are radially movably disposed in the corresponding telescopic grooves, and elastic elements are disposed at bottoms of the telescopic grooves and press against inner bottom surfaces of the positioning strips.
5. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 2, wherein a one-way transmission structure is provided between the rotation block and the housing for allowing the rotation block to rotate in a forward direction, the rotation block is provided with telescopic grooves on left and right sides thereof, in a rotation direction of the rotation block, the rear end of the positioning strip is rotatably connected in the telescopic grooves through a rotation shaft, the rotation shaft is provided with a torsion spring, and the torsion spring drives the positioning strip to rotate so that the front end of the positioning strip rotates out of the telescopic grooves and enters the positioning groove.
6. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 1, wherein the high definition camera and the infrared camera are fixedly arranged at the front end of the housing, the high definition camera and the infrared camera are symmetrically distributed at the front end of the housing, the mode switching mechanism comprises a light shielding cover rotatably arranged at the front end of the housing, the light shielding cover comprises a rotating sleeve sleeved on the housing, a light hole is formed in the light shielding cover, the light shielding cover has a first camera position and a second camera position, and when the light shielding cover is located at the first camera position, the light hole of the light shielding cover corresponds to the high definition camera; when the shading cover rotates to the second camera shooting position, the light transmission hole of the shading cover corresponds to the infrared camera.
7. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 6, wherein the mode switching mechanism comprises an inner gear ring disposed inside a rotating sleeve of the light shield, a driving gear disposed at a front end of the housing and engaged with the inner gear ring, a driving motor disposed in the housing and in transmission connection with the driving gear, and a controller disposed in the housing and controlling the driving motor, wherein the housing is provided with a brightness sensor for sensing ambient light, the brightness sensor is electrically connected to the controller, and when the brightness sensor detects that the ambient light is higher than a set value, the controller rotates the driving motor, thereby driving the light shield to rotate to the first photographing position through the driving gear; when the brightness sensor detects that the brightness of the ambient light is lower than a set value, the driving motor enables the shading cover to rotate to the second shooting position.
8. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 7, wherein the front end of the housing is provided with a locking head driven by a push-pull electromagnet, the light-shielding lid is provided with two conical positioning holes which are narrowed from inside to outside, the two positioning holes are uniformly distributed in the circumferential direction, and when the light-shielding lid is rotated to the first or second photographing position by the driving motor, the push-pull electromagnet is operated, so that the locking head is inserted into the corresponding positioning hole.
9. The multifunctional test instrument based on infrared thermal imaging as claimed in claim 1, wherein the housing comprises a handle, a threaded hole is formed at a lower end of the handle, a connection post is connected to the threaded hole in a threaded manner, two connection holes penetrating the connection post are formed in a lower end face of the connection post, two ends of a suspension rope respectively penetrate through the corresponding connection holes from outside to inside, and a rope knot is formed at an end portion of the suspension rope entering the threaded hole of the handle.
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