Multispectral explosion-proof pan-tilt camera

Abstract

The utility model relates to a multispectral explosion-proof pan-tilt camera, which comprises a T-shaped mounting shell, a rectangular mounting shell, a driving mechanism, a visible light spectrum camera, a thermal imaging camera and a laser methane spectrum camera, the driving mechanism is mounted in the T-shaped mounting shell and the rectangular mounting shell, a plurality of driving shafts are arranged in the T-shaped mounting shell, and the driving shafts are connected with the thermal imaging camera and the laser methane spectrum camera. The driving shafts and the driving mechanism are arranged in a matched mode, the ends of the multiple driving shafts are fixed to the visible light spectrum camera, the thermal imaging camera and the laser methane spectrum camera respectively, and the driving mechanism comprises a first servo motor, a first harmonic speed reducer, a first belt, a first belt pulley, a second servo motor, a second harmonic speed reducer and a horizontal steering shaft. The multispectral explosion-proof pan-tilt camera is designed, the explosion-proof effect of the multispectral explosion-proof pan-tilt camera is guaranteed, meanwhile, the abnormity of a factory area is monitored at the same time through multiple spectrums, the high dynamic characteristic is obtained, the transmission mechanical gap is greatly reduced, and the explosion-proof pan-tilt camera can find abnormal events more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, and more particularly to a multi-spectral explosion-proof pan-tilt camera. Background Art

[0002] With the development and progress of society, industry and heavy industry are developing rapidly. Some industrial enterprises and factories are often accompanied by various flammable and explosive gases and liquids. This places higher demands on the monitoring equipment within the factory. On the one hand, it must be able to ensure that when the equipment itself has an abnormality, it will not cause combustion or sparks to overflow, which will cause the flammable gas and chemical raw materials in the factory to explode. On the other hand, it must be able to detect some abnormalities in the factory in advance and issue early warnings. However, traditional explosion-proof pan-tilt cameras mainly ensure that they will not have abnormalities themselves, and often ignore early warnings of some abnormalities that occur in the factory. Existing explosion-proof pan-tilt cameras have the following main shortcomings:

[0003] 1. Abnormal monitoring of the factory mainly relies on visible light, which makes it difficult to detect abnormalities such as flammable gas leaks and high temperatures;

[0004] 2. Traditional explosion-proof PTZ has slow operation speed, long inspection cycle and low efficiency in detecting abnormalities;

[0005] 3. The transmission mainly adopts worm gear, which is a direct engagement of mechanical teeth. After long-term operation, it will wear out and lose powder. On the one hand, it will further increase the mechanical clearance. On the other hand, the fallen metal powder may enter the camera lens or fall on the circuit board, causing damage to the electronic circuit board or components. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-spectral explosion-proof pan-tilt camera to solve the technical problems mentioned in the background technology.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A multi-spectral explosion-proof pan-tilt camera, comprising a T-shaped mounting shell, a rectangular mounting shell, and a drive mechanism, wherein the drive mechanism is mounted in the T-shaped mounting shell and the rectangular mounting shell, and further comprising a visible light spectrum camera, a thermal imaging camera, and a laser methane spectrum camera. The T-shaped mounting shell is provided with a plurality of drive shafts, which are arranged in cooperation with the drive mechanism, and the ends of the plurality of drive shafts are respectively fixed to the visible light spectrum camera, the thermal imaging camera, and the laser methane spectrum camera, wherein

[0009] The driving mechanism includes a first servo motor, a first harmonic reducer, a first belt, a first pulley, a second servo motor, a second harmonic reducer, and a horizontal steering shaft. The first servo motor is installed in a T-shaped mounting shell, and the output end of the first servo motor is connected to the first pulley through the first harmonic reducer and the first belt, and the first pulley is axially fixed on the drive shaft. The T-shaped mounting shell is rotatably connected to the upper end surface of the rectangular mounting shell, and the horizontal steering shaft passes through the rectangular mounting shell and is axially fixed to the lower end surface of the T-shaped mounting shell. The second servo motor is installed in the rectangular mounting shell, and the second servo motor is connected to the horizontal steering shaft through the second harmonic reducer. The first harmonic reducer and the second harmonic reducer both adopt harmonic reducers with 50 times deceleration.

[0010] Preferably, a base is fixed to the lower end surface of the rectangular mounting shell, and a bolt connection hole is provided on the base.

[0011] In any of the above schemes, it is preferred that a rotating assembly is provided in the rectangular mounting shell, and the rotating assembly includes a bearing, a cylindrical mounting frame, and a mounting column. The bearing is fixed in the rectangular mounting shell, the outer side of the cylindrical mounting frame is fixed to the inner ring of the bearing, and the top of the cylindrical mounting frame passes through the rectangular mounting shell and is fixed to the T-shaped mounting shell through the mounting column.

[0012] In any of the above solutions, preferably, a wire threading tube is provided on the side wall of the rectangular mounting shell, and one end of the wire threading tube is communicated with the interior of the rectangular mounting shell.

[0013] In any of the above solutions, preferably, a rain cover is provided on the top of each of the visible light spectrum camera, the thermal imaging camera, and the laser methane spectrum camera.

[0014] In any of the above solutions, preferably, an inspection port is provided at the bottom of the rectangular mounting shell, and an inspection cover is bolted to the inspection port.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. Three types of spectral cameras have been added, including visible light spectrum camera, thermal imaging camera, and laser methane spectrum camera, which monitor plant anomalies in three dimensions: visible light vision, temperature spectrum, and flammable gas spectrum;

[0017] 2. The drive shaft is driven by the first harmonic reducer and the second harmonic reducer. The three cameras operate independently. When each spectral camera detects an anomaly, it can be aimed at the location of the anomaly and make judgments under multiple spectra.

[0018] 3. Both the first harmonic reducer and the second harmonic reducer use a 50-fold reduction harmonic reducer to directly drive the transmission shaft. The mechanical clearance on the servo motor side is reduced by the harmonic reducer according to the reduction ratio, and the clearance at the transmission shaft is only 1%. The actual positioning accuracy can reach 0.001°. At the same time, the harmonic directly drives the transmission shaft, avoiding intermediate links and reducing the number of mechanical parts that are worn.

[0019] 4. The horizontal transmission mechanism and the vertical transmission mechanism are designed in two shells respectively, which reduces the load required for horizontal rotation and greatly increases the dynamic characteristics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a multi-spectral explosion-proof pan-tilt camera of the present invention;

[0021] Figure 2 for Figure 1 sectional view.

[0022] Description of the numbers in the figure:

[0023] 1. T-shaped mounting shell; 2. Rectangular mounting shell; 3. Driving mechanism; 4. Visible light spectrum camera; 5. Thermal imaging camera; 6. Laser methane spectrum camera; 7. Driving shaft; 301. First servo motor; 302. First harmonic reducer; 303. First belt; 304. First pulley; 305. Second servo motor; 306. Second harmonic reducer; 307. Horizontal steering shaft; 8. Base; 9. Bolt connection hole; 10. Rotating assembly; 1001. Bearing; 1002. Cylindrical mounting bracket; 1003. Mounting column; 11. Threading tube; 12. Rain cover; 13. Inspection port; 14. Inspection cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] See also Figures 1 to 2A multi-spectral explosion-proof pan-tilt camera includes a T-shaped mounting shell 1, a rectangular mounting shell 2 and a driving mechanism 3. The driving mechanism 3 is installed in the T-shaped mounting shell 1 and the rectangular mounting shell 2. It also includes a visible light spectrum camera 4, a thermal imaging camera 5, and a laser methane spectrum camera 6. A plurality of driving shafts 7 are provided in the T-shaped mounting shell 1. The driving shafts 7 are arranged in conjunction with the driving mechanism 3. The ends of the plurality of driving shafts 7 are respectively fixed to the visible light spectrum camera 4, the thermal imaging camera 5, and the laser methane spectrum camera 6.

[0027] The driving mechanism 3 includes a first servo motor 301, a first harmonic reducer 302, a first belt 303, a first pulley 304, a second servo motor 305, a second harmonic reducer 306, and a horizontal steering shaft 307. The first servo motor 301 is installed in the T-shaped mounting shell 1. The output end of the first servo motor 301 is connected to the first pulley 304 through the first harmonic reducer 302 and the first belt 303, and the first pulley 304 is axially fixed on the drive shaft 7. The T-shaped mounting shell 1 is rotatably connected to the upper end surface of the rectangular mounting shell 2, and the horizontal steering shaft 307 passes through the rectangular mounting shell 2 and is axially fixed to the lower end surface of the T-shaped mounting shell 1. The second servo motor 305 is installed in the rectangular mounting shell 2, and the second servo motor 305 is connected to the horizontal steering shaft 307 through the second harmonic reducer 306. The first harmonic reducer 302 and the second harmonic reducer 306 both adopt harmonic reducers with 50 times deceleration.

[0028] The drive shaft is driven by the first harmonic reducer 302 and the second harmonic reducer 306. The three cameras operate independently, monitoring plant abnormalities in three dimensions: visible light vision, temperature spectrum, and flammable gas spectrum. The plant abnormalities are monitored simultaneously in multiple spectra, obtaining high dynamic characteristics and greatly reducing the transmission mechanical gap, making the explosion-proof pan-tilt camera more efficient in detecting abnormal events.

[0029] In this embodiment, a base 8 is fixed to the lower end surface of the rectangular mounting shell 1 , and bolt connection holes 9 are provided on the base 8 . The above design facilitates the installation of the device.

[0030] In this embodiment, a rotating assembly 10 is provided in the rectangular mounting shell 2. The rotating assembly 10 includes a bearing 1001, a cylindrical mounting frame 1002, and a mounting column 1003. The bearing 1001 is fixed in the rectangular mounting shell 2, the outer side of the cylindrical mounting frame 1002 is fixed to the inner ring of the bearing 1001, and the top of the cylindrical mounting frame 1002 passes through the rectangular mounting shell 2 and is fixed to the T-shaped mounting shell 1 through the mounting column 1003; using the above design, a rotating connection between the rectangular mounting shell 2 and the T-shaped mounting shell 1 is achieved.

[0031] In this embodiment, a wire threading tube 11 is provided on the side wall of the rectangular mounting shell 2 , and one end of the wire threading tube 11 is communicated with the interior of the rectangular mounting shell 2 . Through the above design, an installation position can be provided for the cables.

[0032] In this embodiment, rain covers 12 are respectively provided on the top of the visible light spectrum camera 4, the thermal imaging camera 5, and the laser methane spectrum camera 6; the rain covers 12 reduce damage to the visible light spectrum camera 4, the thermal imaging camera 5, and the laser methane spectrum camera 6 caused by rain and the like.

[0033] In this embodiment, an inspection port 13 is provided at the bottom of the rectangular mounting shell 2 , and an inspection cover 14 is bolted to the inspection port 13 . The above design facilitates the inspection of various components within the rectangular mounting shell 2 .

[0034] The working process of this utility model is as follows:

[0035] Install the device at a suitable location in the factory and then connect to the device via cables;

[0036] 1. Three spectral cameras have been added, namely visible light spectrum camera 4, thermal imaging camera 5, and laser methane spectrum camera 6, which monitor plant anomalies in three dimensions: visible light vision, temperature spectrum, and flammable gas spectrum;

[0037] 2. The drive shaft is driven by the first harmonic reducer 302 and the second harmonic reducer 306. The three cameras operate independently, so that when each spectral camera detects an anomaly, it can be aimed at the location of the anomaly and make judgments under multiple spectra;

[0038] 3. Both the first harmonic reducer 302 and the second harmonic reducer 306 use a 50-fold reduction harmonic reducer to directly drive the transmission shaft. The mechanical clearance on the servo motor side is reduced by the harmonic reducer according to the reduction ratio, and the clearance at the transmission shaft is only 1%. The actual positioning accuracy can reach 0.001°. At the same time, the harmonic directly drives the transmission shaft, avoiding intermediate links and reducing the number of mechanical parts that wear out.

[0039] 4. The horizontal transmission mechanism and the vertical transmission mechanism are designed in two shells respectively, which reduces the load required for horizontal rotation and greatly increases the dynamic characteristics of the product;

[0040] 5. Use high torque servo motor to drive the first harmonic reducer 302 and the second harmonic reducer 306 to obtain high dynamic characteristics. The maximum positioning speed can reach .

[0041] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A multi-spectral explosion-proof pan-tilt camera, comprising a T-shaped mounting shell (1), a rectangular mounting shell (2) and a driving mechanism (3), wherein the driving mechanism (3) is mounted in the T-shaped mounting shell (1) and the rectangular mounting shell (2), and is characterized in that: It also includes a visible light spectrum camera (4), a thermal imaging camera (5), and a laser methane spectrum camera (6). A plurality of drive shafts (7) are provided in the T-shaped mounting shell (1). The drive shafts (7) are arranged in cooperation with the drive mechanism (3). The ends of the plurality of drive shafts (7) are respectively fixed to the visible light spectrum camera (4), the thermal imaging camera (5), and the laser methane spectrum camera (6). The driving mechanism (3) comprises a first servo motor (301), a first harmonic reducer (302), a first belt (303), a first pulley (304), a second servo motor (305), a second harmonic reducer (306), and a horizontal steering shaft (307). The first servo motor (301) is installed in a T-shaped mounting shell (1). The output end of the first servo motor (301) is connected to the first pulley (307) through the first harmonic reducer (302), the first belt (303), and the first pulley (307). 4) transmission connection, and the first pulley (304) is axially fixed on the driving shaft (7), the T-shaped mounting shell (1) is rotationally connected to the upper end surface of the rectangular mounting shell (2), and the horizontal steering shaft (307) passes through the rectangular mounting shell (2) and is axially fixed to the lower end surface of the T-shaped mounting shell (1), the second servo motor (305) is installed in the rectangular mounting shell (2), and the second servo motor (305) is transmission-connected to the horizontal steering shaft (307) through the second harmonic reducer (306).

2. The multi-spectral explosion-proof PTZ camera according to claim 1, characterized in that: A base (8) is fixed to the lower end surface of the rectangular mounting shell (1), and a bolt connection hole (9) is provided on the base (8).

3. The multi-spectral explosion-proof PTZ camera according to claim 2, characterized in that: A rotating assembly (10) is provided in the rectangular mounting shell (2), and the rotating assembly (10) comprises a bearing (1001), a cylindrical mounting frame (1002), and a mounting column (1003). The bearing (1001) is fixed in the rectangular mounting shell (2), the outer side of the cylindrical mounting frame (1002) is fixed to the inner ring of the bearing (1001), and the top of the cylindrical mounting frame (1002) passes through the rectangular mounting shell (2) and is fixed to the T-shaped mounting shell (1) via the mounting column (1003).

4. The multi-spectral explosion-proof PTZ camera according to claim 1, characterized in that: A wire threading tube (11) is provided on the side wall of the rectangular mounting shell (2), and one end of the wire threading tube (11) is communicated with the interior of the rectangular mounting shell (2).

5. The multi-spectral explosion-proof PTZ camera according to claim 1, characterized in that: A rain shield (12) is provided on the top of each of the visible light spectrum camera (4), the thermal imaging camera (5), and the laser methane spectrum camera (6).

6. The multi-spectral explosion-proof PTZ camera according to claim 1, characterized in that: An inspection opening (13) is provided at the bottom of the rectangular mounting shell (2), and an inspection cover (14) is bolted to the inspection opening (13).

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