A tower type optical FOD detector temperature control device

Abstract

The invention discloses a tower-type optical FOD detector temperature control device, comprising a box body, wherein a front hanger is arranged in the box body, the front hanger divides the inner cavity of the box body into a front cavity and a rear cavity, the front cavity and the rear cavity are communicated with each other, a camera and a lens are both installed on the front hanger, a temperature probe, a first temperature control board, a rear first fan, a first front heating resistor and a first rear heating resistor are installed in the box body, the temperature probe can detect the temperature information in the box body and send the information to the first temperature control board, the first temperature control board can control the opening or closing of the rear first fan, the first front heating resistor and the first rear heating resistor, the first front heating resistor is arranged in the front cavity, and the first rear heating resistor is arranged in the rear cavity; the device can automatically adjust the temperature of the inner cavity of the box body without manual intervention, so that the imaging device works within its optimal temperature range.

Description

Technical Field

[0001] The invention relates to the technical field of optical FOD detectors, and in particular to a tower-type optical FOD detector temperature control device. Background Art

[0002] In the application of tower-mounted optical FOD detectors, it is necessary to use imaging devices such as telephoto lenses and high-definition cameras in an outdoor long-term automated state. These imaging devices need to be installed in a sealed cavity to achieve waterproof and dustproof. However, high-performance imaging devices such as telephoto lenses and high-definition cameras are sensitive to ambient temperature. Too high or too low temperature may cause the image clarity to decrease or even the device to stop working. The best working temperature is between 0 degrees and 50 degrees.

[0003] However, the outdoor ambient temperature may cause the temperature inside the cavity to exceed this range, so a temperature control device is needed to control the temperature inside the cavity so that the imaging device operates within its optimal temperature range. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a tower-type optical FOD detector temperature control device, which can automatically adjust the temperature of the inner cavity of the box without human intervention, so that the imaging equipment works within its optimal temperature range.

[0005] A tower-type optical FOD detector temperature control device comprises a box body, a front hanger is arranged in the box body, the front hanger divides the inner cavity of the box body into a front cavity and a rear cavity, the front cavity and the rear cavity are connected to each other, a camera and a lens are mounted on the front hanger, a temperature probe, a first temperature control board, a rear first fan, a first front heating resistor and a first rear heating resistor are installed in the box body, the temperature probe can detect the temperature information in the box body and send the information to the first temperature control board, the first temperature control board can control the opening or closing of the rear first fan, the first front heating resistor and the first rear heating resistor, the first front heating resistor is arranged in the front cavity, and the first rear heating resistor is arranged in the rear cavity.

[0006] Preferably, it also includes a second temperature control board, a second front heating resistor and a second rear heating resistor, the second front heating resistor is arranged in the front cavity, the second rear heating resistor is arranged in the rear cavity, the temperature probe can detect the temperature information in the box and send the information to the second temperature control board, and the second temperature control board can control the opening and closing of the second front heating resistor and the second rear heating resistor.

[0007] Preferably, it also includes a second rear fan and two front fans, the rotation speeds of the second rear fan and the two front fans are higher than the rotation speed of the first rear fan, the first rear fan and the second rear fan are arranged in the rear cavity, the two front fans are installed on the front hanger, the wind directions of the two front fans are opposite, and the wind direction of one of the front fans is from the rear cavity to the front cavity.

[0008] Preferably, a front heating resistor mounting plate is installed in the front cavity, and the first front heating resistor and the second front heating resistor are both installed on the front heating resistor mounting plate.

[0009] Preferably, a rear hanger is installed in the rear cavity, and the first temperature control panel and the second temperature control panel are both installed on the rear hanger.

[0010] Preferably, the rear hanger is connected to a rear cover plate, and the rear first fan, the rear second fan, the first rear heating resistor and the second rear heating resistor are all installed on the rear cover plate.

[0011] Preferably, the two front fans are both installed on the top of the front hanger, and the two front fans are distributed in the left and right directions.

[0012] Preferably, the camera is located in the rear cavity, and the temperature probe is arranged in the rear cavity.

[0013] The beneficial effects of the present invention are as follows: in the present technical solution, a temperature probe, a first temperature control board, a first fan, a first front heating resistor and a first rear heating resistor are arranged to form a primary temperature control device, which can adjust the temperature inside the box so that the imaging device works within its optimal temperature range; a second temperature control board, a second front heating resistor, a second rear heating resistor, a second rear fan and a front fan are arranged to form a secondary temperature control device, and the secondary temperature control device has a stronger heat dissipation and heating capacity inside the box, so that the device can adapt to a more severe environment. At the same time, the two-stage temperature control is equivalent to a dual redundant backup. When a temperature control device of one stage is damaged and fails, the other stage can also work normally according to its own logic, thereby increasing the fault tolerance rate when the local temperature control device of the product is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0015] Figure 1 It is a left-side cross-sectional view of an imaging device installed in a box in the prior art;

[0016] Figure 2 It is a left side cross-sectional view of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the rear cover plate and the components installed on the rear cover plate in the present invention;

[0018] Figure 4 It is a schematic diagram of the installation position of the front hanger and the front fan in the present invention;

[0019] Figure 5 It is a principle block diagram of the system control in the present invention.

[0020] In the accompanying drawings, 1-box, 2-front hanger, 3-camera, 4-lens, 5-front cavity, 6-rear cavity, 7-first temperature control board, 8-rear first fan, 9-first front heating resistor, 10-first rear heating resistor, 11-second temperature control board, 12-second front heating resistor, 13-second rear heating resistor, 14-rear second fan, 15-front fan, 16-front heating resistor mounting plate, 17-rear hanger, 18-rear cover. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0022] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0023] Example 1

[0024] like Figure 1-Figure 5 As shown, in this embodiment, a tower-type optical FOD detector temperature control device is provided, including a box body 1, a front hanger 2 is arranged in the box body 1, the front hanger 2 divides the inner cavity of the box body 1 into a front cavity 5 and a rear cavity 6, the front cavity 5 and the rear cavity 6 are interconnected, the camera 3 and the lens 4 are both installed on the front hanger 2, and a temperature probe, a first temperature control board 7, a rear first fan 8, a first front heating resistor 9 and a first rear heating resistor 10 are installed in the box body 1, the temperature probe can detect the temperature information in the box body 1 and send the information to the first temperature control board 7, the first temperature control board 7 can control the opening or closing of the rear first fan 8, the first front heating resistor 9 and the first rear heating resistor 10, the first front heating resistor 9 is arranged in the front cavity 5, and the first rear heating resistor 10 is arranged in the rear cavity 6.

[0025] Considering waterproof and dustproof, the imaging device is installed in a sealed box 1, so a fan cannot be installed on the box 1 for forced ventilation with the outside. The heat source in the box 1 is mainly the camera 3, so the temperature around the camera 3 is higher than the temperature of other positions in the inner cavity of the box 1. In this embodiment, the camera 3 is located in the rear cavity 6, and the temperature probe is arranged in the rear cavity 6. The temperature probe detects the temperature near the camera 3.

[0026] When the temperature probe detects that the temperature is too high, the first fan 8 is turned on according to the control strategy to enhance the air circulation in the box 1, accelerate the heat exchange in the box 1, conduct the heat generated by the camera to other areas of the box 1, and then dissipate the heat to the outside through the box 1.

[0027] When the temperature probe detects that the temperature is too low, the first front heating resistor 9 and the first rear heating resistor 10 are turned on according to the control strategy to heat the inside of the box 1, and the rear first fan 8 is turned on at the same time to make hot air flow in the box 1 to achieve temperature increase.

[0028] The temperature inside the housing 1 is adjusted in this way so that the imaging device operates within its optimal temperature range.

[0029] The specific regulation is as follows: when the temperature probe detects that the temperature is higher than 40 degrees, the first temperature control plate 7 turns on the first fan 8 to enhance the air circulation in the cavity; when the temperature drops to 25 degrees, the first fan 8 is turned off, forming the first level of high temperature control.

[0030] When the temperature probe detects that the temperature drops to 10 degrees, the first temperature control board 7 turns on the first front heating resistor 9 and the first rear heating resistor 10 to generate heat to heat the inner cavity of the box 1, and at the same time turns on the rear first fan 8 to enhance the air circulation in the inner cavity of the box 1 so that hot air flows in the inner cavity of the box 1. When the temperature rises to 15 degrees, the first temperature control board 7 controls the first front heating resistor 9, the first rear heating resistor 10 and the rear first fan 8, thereby forming the first level of low temperature temperature control.

[0031] In this embodiment, the first front heating resistor 9 is arranged in the front cavity 5, and the first rear heating resistor 10 is arranged in the rear cavity 6, so as to heat the inner cavity of the box body 1 evenly and achieve a better overall heating effect of the inner cavity of the box body 1.

[0032] Example 2

[0033] This embodiment is further limited on the basis of Embodiment 1, and also includes a second temperature control board 11, a second front heating resistor 12 and a second rear heating resistor 13. The second front heating resistor 12 is arranged in the front cavity 5, and the second rear heating resistor 13 is arranged in the rear cavity 6. The temperature probe can detect the temperature information in the box body 1 and send the information to the second temperature control board 11. The second temperature control board 11 can control the opening and closing of the second front heating resistor 12 and the second rear heating resistor 13.

[0034] The present embodiment also includes a second rear fan 14 and two front fans 15, the rotation speeds of the second rear fan 14 and the two front fans 15 are higher than the rotation speed of the first rear fan 8, the first rear fan 8 and the second rear fan 14 are arranged in the rear cavity 6, the two front fans 15 are installed on the front hanger 2, the wind directions of the two front fans 15 are opposite, and the wind direction of one of the front fans 15 is from the rear cavity 6 to the front cavity 5.

[0035] In this embodiment, a second temperature control board 11, a second front heating resistor 12 and a second rear heating resistor 13 are provided to form a second-level low-temperature control. When the ambient temperature near the equipment is too low, resulting in a poor first-level low-temperature heating effect, for example, when the temperature in the inner cavity of the box 1 drops to 0 degrees, the second temperature control board 11 controls the second front heating resistor 12 and the second rear heating resistor 13 to work. At this time, the four heating resistors heat the inside of the box at the same time to increase the temperature. When the temperature rises to 12 degrees, they are turned off. The second front heating resistor 12 and the second rear heating resistor 13 are used, and only the first front heating resistor 9 and the first rear heating resistor 10 are used for heating and increasing the temperature. When the temperature rises to 15 degrees, the first front heating resistor 9 and the first rear heating resistor 10 are turned off.

[0036] In this embodiment, the rear second fan 14 and the two front fans 15 cooperate with the second temperature control board 11 to form a second level of high temperature control. When the ambient temperature near the equipment is too high, resulting in poor effect of the first level of high temperature control, for example, when the temperature in the inner cavity of the box body 1 rises to 50 degrees, the front fan 15 and the rear second fan 14 are turned on. The front fan 15 and the rear second fan 14 rotate very fast, further enhancing the circulation of air in the inner cavity of the box body 1. At this time, all four fans are in the on state. When the temperature drops to 35 degrees, the front fan 15 and the rear second fan 14 are turned off, and only the rear first fan 8 is used. When the temperature drops to 25 degrees, the rear first fan 8 is turned off.

[0037] In this way, by setting two-stage low temperature control and two-stage high temperature control, the temperature in the housing 1 can be adjusted within the range of -20 degrees to 50 degrees of the ambient temperature, so that the imaging device works within its optimal temperature range.

[0038] At the same time, since the rotation speed of the front fan 15 and the second rear fan 14 is higher than that of the first rear fan 8, their service life is shorter than that of the first rear fan 8. When the temperature is below 40 degrees, only the first rear fan 8 is used. When the temperature rises to 50 degrees, the front fan 15 and the second rear fan 14 are turned on. In this way, the working time of the front fan 15 and the second rear fan 14 can be reduced while achieving temperature control in the box body 1, thereby extending the service life of the entire device.

[0039] At the same time, during the second level high temperature control, since the wind directions of the two front fans 15 are opposite, air convection is achieved. Combined with the high-speed rotation of the front fan 15 and the second rear fan 14, the air in the inner cavity of the box body 1 flows quickly, thereby achieving a better heat dissipation effect.

[0040] In the present technical solution, since the two-stage temperature control is controlled by the first temperature control board 7 and the second temperature control board 11 respectively, the two-stage temperature control is equivalent to a dual-redundancy backup. When a temperature control device at one stage is damaged or fails, the other stage can also work normally according to its own logic, thereby increasing the fault tolerance rate when the local temperature control device of the product is damaged.

[0041] In this embodiment, a front heating resistor mounting plate 16 is installed in the front cavity 5 , and the first front heating resistor 9 and the second front heating resistor 12 are both installed on the front heating resistor mounting plate 16 .

[0042] In this embodiment, a rear hanger 17 is installed in the rear cavity 6 , and the first temperature control panel 7 and the second temperature control panel 11 are both installed on the rear hanger 17 .

[0043] In this embodiment, the rear hanger 17 is connected to a rear cover plate 18 , and the first rear fan 8 , the second rear fan 14 , the first rear heating resistor 10 and the second rear heating resistor 13 are all mounted on the rear cover plate 18 .

[0044] In this embodiment, the two front fans 15 are both installed on the top of the front hanger 2, and the two front fans 15 are distributed along the left-right direction.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A tower-type optical FOD detector temperature control device, comprising a box (1), wherein a front hanger (2) is arranged in the box (1), the front hanger (2) divides the inner cavity of the box (1) into a front cavity (5) and a rear cavity (6), the front cavity (5) and the rear cavity (6) are connected to each other, a camera (3) and a lens (4) are both installed on the front hanger (2), characterized in that: A temperature probe, a first temperature control board (7), a first rear fan (8), a first front heating resistor (9) and a first rear heating resistor (10) are installed in the box (1); the temperature probe can detect temperature information in the box (1) and send the information to the first temperature control board (7); the first temperature control board (7) can control the opening or closing of the first rear fan (8), the first front heating resistor (9) and the first rear heating resistor (10); the first front heating resistor (9) is arranged in the front cavity (5), and the first rear heating resistor (10) is arranged in the rear cavity (6); When the temperature probe detects that the temperature is higher than 40 degrees, the first temperature control board (7) turns on the first fan (8) to enhance the air circulation in the cavity. When the temperature drops to 25 degrees, the first fan (8) is turned off to form the first level of high temperature control. When the temperature rises to 15 degrees, the first temperature control board (7) controls the first front heating resistor (9), the first rear heating resistor (100) and the first rear fan (8) to form a first-level low-temperature temperature control; The cabinet further comprises a second temperature control board (11), a second front heating resistor (12) and a second rear heating resistor (13); the second front heating resistor (12) is arranged in the front cavity (5), the second rear heating resistor (13) is arranged in the rear cavity (6); the temperature probe is capable of detecting temperature information in the cabinet (1) and sending the information to the second temperature control board (11); the second temperature control board (11) is capable of controlling the opening and closing of the second front heating resistor (12) and the second rear heating resistor (13); the second temperature control board (11), the second front heating resistor (12) and the second rear heating resistor (13) form a second-level low-temperature control; The invention also comprises a second rear fan (14) and two front fans (15), wherein the rotation speeds of the second rear fan (14) and the two front fans (15) are higher than the rotation speed of the first rear fan (8), the first rear fan (8) and the second rear fan (14) are arranged in the rear cavity (6), the two front fans (15) are installed on the front hanger (2), the wind directions of the two front fans (15) are opposite, the wind direction of one of the front fans (15) is from the rear cavity (6) to the front cavity (5), and the second fan (14) and the two front fans (15) cooperate with the second temperature control plate (11) to form a second level of high temperature control.

2. A tower-type optical FOD detector temperature control device according to claim 1, characterized in that: A front heating resistor mounting plate (16) is installed in the front cavity (5), and the first front heating resistor (9) and the second front heating resistor (12) are both installed on the front heating resistor mounting plate (16).

3. The tower-type optical FOD detector temperature control device according to claim 1, characterized in that: A rear hanger (17) is installed in the rear cavity (6), and the first temperature control panel (7) and the second temperature control panel (11) are both installed on the rear hanger (17).

4. A tower-type optical FOD detector temperature control device according to claim 3, characterized in that: The rear hanger (17) is connected to a rear cover plate (18), and the rear first fan (8), the rear second fan (14), the first rear heating resistor (10) and the second rear heating resistor (13) are all mounted on the rear cover plate (18).

5. The tower-type optical FOD detector temperature control device according to claim 1, characterized in that: The two front fans (15) are both installed on the top of the front hanger (2), and the two front fans (15) are distributed along the left and right directions.

6. The tower-type optical FOD detector temperature control device according to claim 1, characterized in that: The camera (3) is located in the rear cavity (6), and the temperature probe is arranged in the rear cavity (6).

Images