Thermal imaging imaging apparatus and imaging system

Abstract

The utility model provides a thermal imaging image pickup apparatus and an image pickup system. The thermal imaging camera equipment comprises a main controller and a thermal imaging device; the thermal imaging device comprises a thermal imaging lens, a shading plate corresponding to the thermal imaging lens and a light sensor; the sensing field of view of the light sensor comprises a first field of view and a second field of view surrounding the first field of view; the first visual field covers an imaging visual field of the thermal imaging lens; the light sensor is connected with the main controller, and the main controller is connected with the shading plate; and the main controller is used for controlling the shading plate to be closed when the light intensity sensed by the second visual field of the light sensor meets a preset condition. According to the technical scheme, the sensor in the thermal imaging camera equipment is prevented from being directly irradiated by strong light, and the technical effect of reducing the loss of the thermal infrared camera equipment is achieved.

Description

Technical Field

[0001] The present application relates to the field of thermal imaging technology, and in particular to a thermal imaging camera device and a camera system. Background Art

[0002] Infrared imaging cameras detect infrared energy in a non-contact manner and convert it into electrical signals through sensors to obtain image pictures and temperature information.

[0003] The sun or other objects whose temperature is much higher than the temperature measurement range of infrared thermal imaging will cause the material properties of the thermal imaging lens in the camera equipment to change, resulting in burns to the thermal imaging lens due to direct strong light, thus affecting the service life of the thermal infrared camera equipment.

[0004] Therefore, how to protect the sensor in the thermal imaging camera equipment from being directly exposed to strong light, thereby extending the service life of the thermal infrared camera equipment is a technical problem that urgently needs to be solved. Utility Model Content

[0005] The present application provides a thermal imaging camera device and a camera system, which are used to prevent the sensor in the thermal imaging camera device from being directly exposed to strong light, thereby achieving the technical effect of reducing the loss of the thermal infrared camera device.

[0006] In a first aspect, the present application provides a thermal imaging camera device, the device comprising: a main controller and a thermal imaging device; the thermal imaging device comprising a thermal imaging lens, a light shielding plate corresponding to the thermal imaging lens, and a light sensor; the sensing field of view of the light sensor comprises a first field of view and a second field of view surrounding the first field of view; the first field of view covers the imaging field of view of the thermal imaging lens;

[0007] The light sensor is connected to the main controller, and the main controller is connected to the shading plate; the main controller is used to control the shading plate to close when the light intensity sensed by the second field of view of the light sensor meets a preset condition.

[0008] In an optional embodiment, the thermal imaging device is provided with a protective cover;

[0009] The protective cover is fixed above the thermal imaging lens, the optical sensor is arranged in the protective cover, and the opening of the protective cover limits the sensing field of view of the optical sensor.

[0010] In an optional embodiment, the protective cover includes a cylindrical first cover body and a trumpet-shaped second cover body;

[0011] The optical sensor is placed in the first cover; the first side of the first cover is closed, and the second side of the first cover is open;

[0012] The second side of the first cover body is connected to the first side of the second cover body; and the opening area of ​​the first side of the second cover body is smaller than the opening area of ​​the second side of the second cover body.

[0013] In an optional implementation, the shape of the opening of the second side of the second cover body is the same as the shape of the field of view of the imaging field of view.

[0014] In an optional implementation, the thermal imaging device further comprises a thermal imaging housing; the thermal imaging lens, the shading plate and the optical sensor are arranged inside a shell of the thermal imaging housing;

[0015] The thermal imaging housing is connected to the main controller via a vertical rotation axis.

[0016] In an optional implementation, the device further includes a pan / tilt base;

[0017] The pan / tilt base and the main controller are connected via a horizontal rotation axis;

[0018] The main controller is further configured to control the horizontal rotation axis and / or the vertical rotation axis to rotate when the light intensity sensed by the second field of view of the light sensor exceeds a preset threshold.

[0019] In an optional implementation, the pan / tilt base is provided with a microcontroller;

[0020] The light sensor is connected to the microcontroller, and the microcontroller is connected to the main controller.

[0021] In an optional embodiment, the thermal imaging housing further includes a light-transmitting cover and a wiper;

[0022] The light-transmitting cover is arranged on the light-collecting side of the thermal imaging lens and is flexibly installed inside the housing;

[0023] The wiper is arranged outside the light-transmitting cover and is relatively fixed to the housing.

[0024] In an optional implementation, the thermal imaging device further includes a thermal imaging power supply;

[0025] The thermal imaging power supply is connected to the main controller and the thermal imaging lens respectively;

[0026] The main controller is also used to control whether the thermal imaging power supply supplies power to the lens.

[0027] In a second aspect, the present application provides a camera system, comprising the thermal imaging camera device described in any one of the first aspects.

[0028] The thermal imaging camera equipment provided by the present application includes a main controller and a thermal imaging device; the thermal imaging device includes a thermal imaging lens, a shading plate corresponding to the thermal imaging lens, and a light sensor; the light sensor is connected to the main controller, and the main controller is connected to the shading plate; the sensing field of the light sensor includes a first field of view and a second field of view surrounding the first field of view; the first field of view covers the imaging field of the thermal imaging lens; in the above scheme, by controlling the sensing field of the light sensor to cover and be larger than the imaging field of the thermal imaging lens in the thermal imaging camera equipment, the light sensor can sense the direct light intensity before the lens; the main controller is used to control the shading plate to close when the light intensity sensed by the second field of view of the light sensor meets the preset conditions, thereby preventing the lens from being directly exposed to strong light and achieving the technical effect of reducing equipment loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic diagram of the structure of a thermal imaging camera device provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of a field of view shape of a light sensor sensing field of view provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of a light sensing working curve of a light sensor provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application;

[0034] Figure 5 A schematic diagram of another shape of the field of view of the optical sensor sensing field of view provided in an embodiment of the present application;

[0035] Figure 6 This is a schematic diagram of the structure of another thermal imaging camera device in an embodiment of the present application;

[0036] Figure 7 A schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application;

[0037] Figure 8 A schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application;

[0038] Fig. 9 A schematic diagram of the structure of a camera system provided in an embodiment of the present application.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0042] In actual applications, the sun or other objects with temperatures far higher than the infrared thermal imaging temperature measurement range will cause the material properties of the thermal imaging lens in the camera to change, causing the thermal imaging lens to be burned due to direct strong light, thus affecting the service life of the thermal infrared camera. Therefore, how to protect the sensor in the thermal imaging camera from direct strong light, thereby extending the service life of the thermal infrared camera, is a technical problem that needs to be solved urgently.

[0043] In response to the above-mentioned technical problems, the thermal imaging camera device provided by the present application controls the sensing field of view of the light sensor to cover a larger area than the imaging field of view of the thermal imaging lens in the thermal imaging camera device, so that the light sensor can sense the direct light intensity before the lens, and then use the processor to determine whether the direct light intensity exceeds the standard. If it exceeds the standard, the sunshade switch in the thermal imaging camera device is controlled to be closed, thereby preventing the lens from being directly exposed to strong light, thereby achieving the technical effect of reducing equipment loss.

[0044] Figure 1 This is a schematic diagram of the structure of a thermal imaging camera device provided in an embodiment of the present application. Figure 1 As shown, the device 100 includes a main controller 10 and a thermal imaging device 20; the thermal imaging device 20 includes a thermal imaging lens 21, a shading plate 22 corresponding to the thermal imaging lens 21, and a light sensor 23; the light sensor 23 is connected to the main controller 10, and the main controller 10 is connected to the shading plate 22.

[0045] Specifically, the main controller 10 is used to control the shading plate 22 to close when the light intensity sensed by the second field of view of the light sensor 23 meets a preset condition.

[0046] In actual applications, the main controller 10 controls the lens to power on and the shutter to open in response to the received shooting command to shoot the target object. During the shooting process of the thermal imaging camera equipment, when the sun or other objects with a temperature much higher than the infrared thermal imaging temperature measurement range directly shines on the thermal imaging lens 21, it will cause the material properties of the lens to change, causing the thermal imaging lens 21 to be burned due to direct strong light. In order to reduce the damage to the lens caused by direct strong light, the technical solution provided in this application adds a light sensor 23 to the thermal imaging device 20 of the existing shooting device, and controls the sensing field of view of the light sensor 23 to cover and be larger than the sensor of the thermal imaging lens 21 in the thermal imaging device 20, so that the light sensor 23 can sense the direct light intensity before the lens, thereby realizing that the thermal imaging lens 21 can avoid direct strong light.

[0047] Figure 2 FIG. 2 is a schematic diagram of a field of view shape of the optical sensor 23 provided in the embodiment of the present application. Figure 2 , the sensing field of view of the optical sensor 23 is a circular field of view, specifically including a first field of view and a second field of view surrounding the first field of view, and the first field of view covers the imaging field of view of the thermal imaging lens 21. In other embodiments, the field of view shapes of the sensing field of view and the imaging field of view may also be rectangular or other shapes, and the field of view shape is not specifically limited in the embodiments of the present application.

[0048] It should also be noted that the first field of view in the embodiment of the present application covers the imaging field of view, which can be understood as the first field of view being larger than the imaging field of view; it can also be understood as the field of view size of the first field of view and the imaging field of view being completely consistent ( Figure 2 The reason is that only when the first field of view is greater than or equal to the imaging field of view, when strong light such as sunlight or other high-temperature light sources directly hits the second field of view and is sensed by the light sensor 23, the strong light will not directly hit the thermal imaging lens 21. If the strong light meets the preset conditions at this time, the shading plate 22 can be directly controlled to close, thereby reducing lens damage.

[0049] Specifically, when strong light is directly incident on the second field of view, the light sensor 23 generates a corresponding light intensity signal in response to the strong light sensed, and transmits the light intensity signal to the main controller 10. A comparator is pre-set in the main controller 10. When the light intensity signal is received, the comparator is used to compare the light intensity signal with the preset conditions pre-stored in the main controller 10. When it is determined that the light intensity signal meets the preset conditions, a closing instruction corresponding to the sunshade 22 is generated and transmitted to the sunshade 22. The sunshade 22 controls the sunshade 22 to close in response to the received closing instruction to prevent the strong light from directly incident on the thermal imaging lens 21.

[0050] It should be noted that the preset condition may be a preset light intensity threshold. Figure 3 A schematic diagram of a light sensing working curve of a light sensor provided in an embodiment of the present application. Figure 3 When the light sensor 23 does not sense strong light, the signal transmitted to the main controller 10 is a voltage signal with a value of VL. When the light sensor 23 senses strong direct light in the second field of view, a voltage mutation signal is generated. After the mutation, the signal transmitted to the main controller 10 is a voltage signal with a value of VH. Based on the above principle, any value between VL and VH can be set as the light intensity threshold. If the light intensity signal is greater than the light intensity threshold, it means that the light intensity meets the preset conditions. In this way, when the light sensor 23 senses strong direct light, the light intensity signal transmitted to the main controller 10 will meet the preset conditions set above, that is, the sunshade 22 can be controlled to close to prevent strong light from directly hitting the thermal imaging lens 21.

[0051] Optionally, the light intensity threshold may be a preset fixed value, or in some other embodiments, may be a light intensity threshold read from a data table storing a plurality of light intensity thresholds.

[0052] Exemplarily, since the position of the sunlight source changes with time, the direct angle of sunlight to the thermal imaging camera device is different at different times, that is, different light intensity thresholds corresponding to different times can be pre-set, and each time and the corresponding light intensity threshold are stored in a data table; when the main controller 10 responds to the light intensity signal transmitted by the light sensor 23, it reads the corresponding light intensity threshold from the data table according to the current time, and compares the light intensity values ​​to determine whether the preset conditions are met.

[0053] The thermal imaging camera equipment provided by the present application includes a main controller 10 and a thermal imaging device 20; the thermal imaging device 20 includes a thermal imaging lens 21, a shading plate 22 corresponding to the thermal imaging lens 21, and a light sensor 23; the light sensor 23 is connected to the main controller 10, and the main controller 10 is connected to the shading plate 22; the sensing field of view of the light sensor 23 includes a first field of view and a second field of view surrounding the first field of view; the first field of view covers the imaging field of view of the thermal imaging lens 21; in the above scheme, by controlling the sensing field of view of the light sensor 23 to cover and be larger than the imaging field of view of the thermal imaging lens 21 in the thermal imaging camera equipment, the light sensor 23 can sense the direct light intensity before the lens; the main controller 10 is used to control the shading plate 22 to close when the light intensity sensed by the second field of view of the light sensor 23 meets the preset conditions, thereby preventing the lens from being directly exposed to strong light and achieving the technical effect of reducing equipment loss.

[0054] Continue to see Figure 1 On the basis of the above embodiments, the thermal imaging device 20 is provided with a protective cover 24 ; the protective cover 24 is fixed above the thermal imaging lens 21 , and the optical sensor 23 is arranged in the protective cover 24 .

[0055] Specifically, the opening of the protective cover 24 limits the sensing field of the light sensor 23 .

[0056] In practical applications, since the optical sensor 23 is simple in structure and small in area, the optical sensor 23 can be placed very close to the thermal imaging camera in the thermal imaging device 20, and the optical axis of the optical sensor 23 and the thermal imaging lens 21 are ensured to be parallel during the placement process, so that the viewing angles of the two components can almost completely overlap, and then the shape design of the protective cover 24 can make the sensing field of view larger than the imaging field of view, thereby achieving the sensing field of view coverage and larger than the imaging field of view, so that the optical sensor 23 can sense the direct strong light before the thermal imaging lens 21. Furthermore, in order to achieve that the optical sensor 23 can sense the light intensity on the same side as the thermal imaging lens 21, when the protective cover 24 is placed, the opening side of the protective cover 24 can be set to be consistent with the lighting side of the thermal imaging lens 21.

[0057] On the basis of the above-mentioned implementation mode, in order to improve the accuracy of the optical sensor 23 sensing strong light before the thermal imaging lens 21, the protective cover 24 can be pre-set to be closed on three sides with only one side open, so as to limit the sensing field of view of the optical sensor 23 through the opening of the protective cover 24; in other words, the optical sensor 23 can only sense the strong light directly entering the sensing field of view through the opening of the protective cover 24.

[0058] Figure 4 This is a schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application. Figure 4As shown, on the basis of the above embodiments, the protective cover 24 includes a cylindrical first cover body 241 and a trumpet-shaped second cover body 242; the optical sensor 23 is placed in the first cover body 241; the first side of the first cover body 241 is closed, and the second side of the first cover body 241 is open; the second side of the first cover body 241 is connected to the first side of the second cover body 242; the opening area of ​​the first side of the second cover body 242 is smaller than the opening area of ​​the second side of the second cover body 242.

[0059] In actual application, the first cover body 241 is closed except for one side connected to the second cover body 242, and the other side is closed; and the connection between the open side of the first cover body 241 and the first side of the second cover body 242 is a closed connection, which can prevent strong light from directly hitting the light sensor 23 from the connection, thereby causing misjudgment and generating an erroneous instruction to control the closing of the light shielding plate 22. On this basis, the second cover body 242 can be understood as a trumpet-shaped structure with openings on both sides of the top and bottom, which can enable strong light to enter the first cover body 241 from the second side of the second cover body 242, and then be sensed by the light sensor 23 in the first cover body 241.

[0060] In the actual sensing process, since the opening area of ​​the first side of the second cover body 242 is smaller than the opening area of ​​the second side of the second cover body 242, the sensing field of the optical sensor 23 can be expanded, and the sensing field of the optical sensor 23 can cover the imaging field of view.

[0061] It should also be noted that, based on the above embodiment, the shape of the opening of the second side of the second cover body 242 is the same as the shape of the field of view of the imaging field of view.

[0062] In this embodiment, if the field of view shape of the imaging field of view is circular, the second cover body 242 can be pre-set as a trumpet-shaped cylindrical structure, that is, the opening shape of the second side of the second cover body 242 of the protective cover 24 is circular; in some embodiments, the field of view shape of the imaging field of view can also be rectangular; based on this, the second cover body 242 is pre-set as a trumpet-shaped cubic structure, that is, the opening shape of the second side of the second cover body 242 of the protective cover 24 is rectangular; the setting method of the opening shape of the second side of the second cover body 242 is consistent with the shape of the imaging field of view of the thermal imaging lens 21. The first field of view in the sensing field of view can be completely surrounded by the second field of view on the basis of covering the imaging field of view, so as to avoid the strong light directly shining into the second field of view and directly shining into the imaging field of view, and then directly shining into the thermal imaging lens 21, causing equipment loss.

[0063] Figure 5 FIG. 2 is a schematic diagram of another shape of the field of view of the optical sensor 23 provided in the embodiment of the present application. Figure 5The sensing field of view of the optical sensor 23 is rectangular, specifically including a first field of view and a second field of view surrounding the first field of view, and the first field of view covers the imaging field of view of the thermal imaging lens 21.

[0064] Exemplarily, the structure of the protective cover 24 is further described in the embodiment of the present application by taking this structure as an example, so as to realize that the sensing field of view after reaching the limit of the protective cover 24 can cover and be larger than the imaging field of view. Specifically, on the basis that the sensing field of view of the above-mentioned light sensor 23 is rectangular, a light sensor 23 with a rectangular photosensitive surface is adopted, that is, a preset proportional relationship between the photosensitive surface size of the light sensor 23 and the lens sensor size of the thermal imaging lens 21 can be preset, and the opening angle of the horn mouth of the second cover body 242 is set to a preset angle, and the vertical and horizontal viewing angles of the sensing field of view are completely equal to the vertical and horizontal viewing angles of the thermal imaging lens 21 through the preset angle and the preset proportional relationship; the reason for adopting the above-mentioned angle setting method is that: because it is difficult for two lenses of different models to have the same viewing angle, the opening of the protective cover 24 can be limited by limiting the opening angle, etc., so as to realize the limitation of the sensing field of view, and finally realize that the sensing field of view can cover and be larger than the imaging field of view.

[0065] Figure 6 FIG. 1 is a schematic diagram of the structure of another thermal imaging camera device in an embodiment of the present application. Figure 6 On the basis of the above embodiments, the thermal imaging device 20 also includes a thermal imaging housing 25; the thermal imaging lens 21, the shading plate 22 and the light sensor 23 are arranged inside the shell of the thermal imaging housing 25; the thermal imaging housing 25 is connected to the main controller 10 through a vertical rotation axis 30.

[0066] In practical applications, since thermal imaging camera equipment may be used for outdoor shooting, in order to reduce equipment loss caused by natural weather such as rain and sun, based on the above-mentioned implementation, the thermal imaging device 20 provided by the technical solution of the present application is further provided with a thermal imaging housing 25, and the thermal imaging lens 21, the shading plate 22, the optical sensor 23 and other components not mentioned in the embodiment of the present application in the above-mentioned thermal imaging device 20 are all arranged inside the shell of the thermal imaging housing 25. Optionally, the thermal imaging housing 25 may be made of plastic or metal, and the embodiment of the present application does not specifically limit the material of the thermal imaging housing 25.

[0067] In some optional embodiments, if the main controller 10 is connected to the components in the thermal imaging device 20 by electrical connection, the connection can be achieved by passing the connecting wire through the vertical rotating shaft 30, or the electrical connection can be directly made from the outside of the vertical rotating shaft 30; optionally, the main controller 10 and the components in the thermal imaging can also be connected wirelessly; for example, a WIFI module or a Bluetooth module is set in the thermal imaging device 20 or the main controller 10 to achieve wireless transmission of signals.

[0068] In practical applications, a vertical drive motor may be provided between the main controller 10 and the vertical rotation axis 30. Specifically, the main controller 10 may drive the vertical rotation axis 30 through the vertical drive motor, thereby driving the thermal imaging device 20 to rotate in the vertical direction, thereby expanding the shooting range.

[0069] Continue to see Figure 6 On the basis of the above embodiments, the thermal imaging housing 25 further includes a light-transmitting cover 251 and a wiper 252; the light-transmitting cover 251 is arranged on the lighting side of the thermal imaging lens 21 and is flexibly installed inside the housing; the wiper 252 is arranged on the outside of the light-transmitting cover 251 and is relatively fixed to the housing.

[0070] In practical applications, in order to achieve multi-directional protection of the components in the thermal imaging device 20 and reduce the loss caused by sun exposure, rain, etc., on the basis of the above-mentioned implementation, the thermal imaging device 20 provided in the embodiment of the present application is further provided with a light-transmitting cover 251. Specifically, the light-transmitting cover 251 can be provided on the lighting side of the housing, that is, the light-transmitting cover 251 is used to enclose the thermal imaging lens 21, the optical sensor 23 and other components inside the thermal imaging housing 25.

[0071] Optionally, the size of the light-transmitting cover 251 can be adapted to the size of the thermal imaging housing 25, so that it can be flexibly installed inside the housing and each component can be enclosed inside the housing. Optionally, the material of the light-transmitting cover 251 can be plastic, resin, or glass. The present application embodiment does not specifically limit the material of the light-transmitting cover 251, as long as it can achieve a light-transmitting effect.

[0072] Since the natural environment may also encounter dust, snow and other weather, which may cause dust, snow and other substances to exist on the surface of the light-transmitting cover 251, in order to ensure that the thermal imaging camera device can capture high-quality clear images, on the basis of the above-mentioned implementation, the thermal imaging device 20 provided in the embodiment of the present application is further provided with a wiper 252; wherein the wiper 252 can be provided on the thermal imaging housing 25 and on the outside of the light-transmitting cover 251. Specifically, when the main controller 10 detects through the thermal imaging lens 21 that the surface cleanliness of the light-transmitting cover 251 is lower than the preset condition, the wiper 252 is controlled to clean the light-transmitting cover 251 to obtain a clean light-transmitting cover 251, so as to achieve the effect of capturing high-quality clear images.

[0073] Figure 7 This is a schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application. Figure 7 On the basis of the above embodiments, the device further includes a pan-tilt base 40 ; the pan-tilt base 40 and the main controller 10 are connected via a horizontal rotation axis 50 .

[0074] Specifically, the main controller 10 is further configured to control the horizontal rotation axis 50 and / or the vertical rotation axis 30 to rotate when the light intensity sensed by the second field of view of the light sensor 23 exceeds a preset threshold.

[0075] In practical applications, a horizontal drive motor may also be provided between the main controller 10 and the horizontal rotation axis 50. Specifically, the main controller 10 may drive the horizontal rotation axis 50 through the horizontal drive motor, thereby driving the main controller 10 and the thermal imaging device 20 to rotate in the horizontal direction, thereby expanding the shooting range.

[0076] In actual applications, the main controller 10 can respond to the received shooting instructions and call up multiple preset positions that need to be shot from a preset data table; for any preset position that needs to be shot, the horizontal rotation axis 50 and / or the vertical rotation axis 30 are controlled to rotate to the preset position, and when the shooting time of the preset position is reached, if the thermal imaging lens is not directly exposed to strong light, the thermal imaging lens is controlled to start shooting.

[0077] Specifically, during the shooting process of each preset position, first go to the first preset position, and then determine whether the light intensity sensed by the preset position has an excessive light intensity problem (the light intensity signal exceeds the preset light intensity threshold of the preset position); if there is no excessive light intensity problem, open the visor corresponding to the thermal imaging lens to take pictures, and then go to the next preset position to shoot; if there is an excessive light intensity problem, control the visor to close, and directly go to the next preset position to shoot. Optionally, after the last preset position is shot, you can return to the previously skipped threshold position and re-determine whether the light intensity exceeds the standard, until all preset positions are shot, disconnect the camera power supply, and end the shooting work.

[0078] In practical applications, when the main controller 10 determines through the comparator that the light intensity signal meets the preset condition, it can also generate a device rotation instruction and transmit the device rotation instruction to the horizontal rotation axis 50 and / or the vertical rotation axis 30. The horizontal rotation axis 50 and / or the vertical rotation axis 30 controls the horizontal rotation axis 50 and / or the vertical rotation axis 30 to rotate in response to the received rotation instruction to prevent strong light from directly hitting the thermal imaging lens 21.

[0079] Exemplarily, in the process of generating the rotation instruction, a specific rotation instruction can be generated according to the position of the sensed strong light in the second field of view; for example, if the sensed strong light is in the first area in the second field of view, a vertical rotation instruction is generated; if the sensed strong light is in the second area in the second field of view, a horizontal rotation instruction is generated; if the sensed strong light is in the third area in the second field of view, a vertical rotation instruction and a horizontal rotation instruction are generated at the same time. In addition, the strong light sensing and the device rotation are continuously performed during the rotation process until the light sensor 23 senses no direct strong light in the second field of view.

[0080] Continue to see Figure 7 The pan / tilt base 40 is provided with a microcontroller 41; the light sensor 23 is connected to the microcontroller, and the microcontroller 41 is connected to the main controller 10 ( Figure 7 not shown).

[0081] In actual applications, when the light sensor 23 senses strong light directly shining on the second field of view, a voltage mutation will occur, and the generated mutation signal will be fed back to the microcontroller 41; the microcontroller 41 parses the received mutation signal to generate a light intensity signal, and sends the light intensity signal to the main controller through the serial port; the main controller 10 receives the light intensity signal, and compares it with the preset conditions, and when it is determined that the light intensity signal meets the preset conditions, controls the sunshade 22 to close, and / or controls the horizontal rotation axis 50 and / or the vertical rotation axis 30 to rotate.

[0082] Figure 8 FIG. 1 is a schematic diagram of the structure of another thermal imaging camera device provided in an embodiment of the present application. Figure 8 On the basis of the above embodiments, the thermal imaging device 20 further includes a thermal imaging power supply 26; the thermal imaging power supply 26 is connected to the main controller 10 and the thermal imaging lens 21 respectively ( Figure 8 The connection relationship in the figure is not fully shown).

[0083] Specifically, the main controller 10 is also used to control whether the thermal imaging power supply 26 supplies power to the lens.

[0084] In actual application, the main controller 10 responds to the received shooting instruction, generates a power-on instruction according to the shooting instruction, and sends the power-on instruction to the thermal imaging power supply 26; the thermal imaging power supply 26 responds to the received power-on instruction to provide power to the thermal imaging lens 21 to achieve shooting of the target object.

[0085] Fig. 9 This is a schematic diagram of the structure of a camera system provided in an embodiment of the present application. Fig. 9 As shown, the camera system 80 includes the thermal imaging camera device 100 described in any of the above embodiments. On this basis, the camera system may also include a bus 200 and a display device 300.

[0086] In actual applications, when viewing the video / image captured by the thermal imaging camera device 100 in real time on the display device 300, the thermal imaging lens in the thermal imaging camera device 100 can be powered on first, and the main controller can be used to determine in real time whether the light intensity sensed by the light sensor meets the preset conditions; if so, the sunshade is controlled to close until the lighting conditions return to normal.

[0087] Specifically, during the display of the video / image, the video data captured by the thermal imaging camera device 100 can be transmitted to the display device 300 for display via the bus 200. Since the thermal imaging camera device 100 avoids direct exposure to strong light during the shooting process, the image / video captured in this case is not overexposed, thereby improving the shooting quality of the shooting system.

[0088] Those skilled in the art will readily come up with other embodiments of the present application after considering the specification and practicing the technical solutions disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0089] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A thermal imaging camera device, characterized in that: The device comprises: a main controller and a thermal imaging device; the thermal imaging device comprises a thermal imaging lens, a shading plate corresponding to the thermal imaging lens, and a light sensor; the light sensor is connected to the main controller, and the main controller is connected to the shading plate; the sensing field of the light sensor comprises a first field of view and a second field of view surrounding the first field of view; the first field of view overlaps the imaging field of the thermal imaging lens; The main controller is used to control the shading plate to close when the light intensity sensed by the second field of view of the light sensor meets a preset condition.

2. The device according to claim 1, characterized in that The thermal imaging device is provided with a protective cover; The protective cover is fixed above the thermal imaging lens, the optical sensor is arranged in the protective cover, and the opening of the protective cover limits the sensing field of view of the optical sensor.

3. The device according to claim 2, characterized in that The protective cover comprises a cylindrical first cover body and a trumpet-shaped second cover body; The optical sensor is placed in the first cover; the first side of the first cover is closed, and the second side of the first cover is open; The second side of the first cover body is connected to the first side of the second cover body; and the opening area of ​​the first side of the second cover body is smaller than the opening area of ​​the second side of the second cover body.

4. The device according to claim 3, characterized in that The opening shape of the second side of the second cover body is the same as the field of view shape of the imaging field of view.

5. The device according to claim 1, characterized in that The thermal imaging device further comprises a thermal imaging housing; the thermal imaging lens, the light shielding plate and the light sensor are arranged inside the shell of the thermal imaging housing; The thermal imaging housing is connected to the main controller via a vertical rotation axis.

6. The device according to claim 5, characterized in that The device also includes a pan / tilt base; The pan / tilt base and the main controller are connected via a horizontal rotation axis; The main controller is further configured to control the horizontal rotation axis and / or the vertical rotation axis to rotate when the light intensity sensed by the second field of view of the light sensor exceeds a preset threshold.

7. The device according to claim 6, characterized in that The pan / tilt base is provided with a microcontroller; The light sensor is connected to the microcontroller, and the microcontroller is connected to the main controller.

8. The device according to claim 5, characterized in that The thermal imaging housing also includes a light-transmitting cover and a wiper; The light-transmitting cover is arranged on the light-collecting side of the thermal imaging lens and is flexibly installed inside the housing; The wiper is arranged outside the light-transmitting cover and is relatively fixed to the housing.

9. The device according to any one of claims 1 to 7, characterized in that: The thermal imaging device also includes a thermal imaging power supply; The thermal imaging power supply is connected to the main controller and the thermal imaging lens respectively; The main controller is also used to control whether the thermal imaging power supply supplies power to the lens.

10. A camera system, characterized in that: The system comprises the thermal imaging camera device according to any one of claims 1-9.

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