Two-eye co-photograph intercom explosion-proof safety monitoring instrument

Abstract

This invention relates to the field of video surveillance technology in industrial environments, specifically to a binocular co-camera intercom explosion-proof safety monitoring device. It includes a transparent component, a top cover fixedly mounted below the transparent component, an upper housing fixedly mounted below the top cover, a main board fixedly mounted inside the upper housing, explosion-proof glass fixedly mounted below the upper housing, a small screen cover fixedly mounted on the outer side of the explosion-proof glass, the small screen cover cooperating with the explosion-proof glass and embedded in the side of the housing, and a lower housing fixedly mounted at the bottom of the upper housing. The binocular co-camera vision system of this invention mainly includes a pan-tilt camera, a fixed camera, and a pan-tilt unit and bracket. The pan-tilt unit and bracket are fixedly installed in the main cavity. The pan-tilt camera is mounted on the pan-tilt unit, located below the transparent component. The pan-tilt unit can be controlled to rotate horizontally and vertically, thereby achieving wide-range, blind-spot-free active scanning and specific target tracking and shooting.

Description

Technical Field

[0001] This invention relates to the field of video surveillance technology in industrial environments, and in particular to a binocular dual-lens intercom explosion-proof safety monitoring device. Background Technology

[0002] Currently, in flammable and explosive hazardous environments such as petroleum, chemical, mining, and energy storage and transportation, safety monitoring equipment plays a crucial role in real-time perception of on-site conditions, risk warning, and emergency command. At present, most explosion-proof monitoring equipment on the market is based on fixed monocular cameras or controllable pan-tilt cameras, which still have some limitations in functional design and practical application.

[0003] In terms of field of view coverage and target tracking, traditional monocular monitoring equipment struggles to balance panoramic observation with local detail capture. Fixed cameras have limited field of view and cannot flexibly track moving targets. While cameras with pan-tilt units can rotate, they can only be aimed in one direction at a time, easily missing anomalies in blind spots. Furthermore, there is a time delay when switching perspectives, making it impossible to provide real-time synchronized images of the global scene and specific targets simultaneously. In addition, to achieve comprehensive monitoring, multiple devices are often required, increasing system complexity and cost. Traditional explosion-proof monitoring equipment is usually fixed or bulky and heavy, making it difficult to carry. When temporary deployment, mobile inspection, or rapid deployment in emergency situations are required, existing equipment is often difficult to transport and time-consuming to install, making it difficult to meet the needs of flexible and mobile monitoring.

[0004] Most existing explosion-proof monitoring devices focus on video acquisition, with relatively weak audio capabilities. Although some devices have basic sound pickup capabilities, their speaker power is low and the pickup distance is short, resulting in insufficient voice clarity in noisy industrial environments. This makes it difficult to achieve remote shouting, two-way real-time intercom, and on-site command and coordination, limiting their application value in emergency communication and personnel dispatch. In addition, hazardous operation scenarios are often accompanied by poor lighting conditions or the need for nighttime operations. However, the night vision function of existing devices mostly relies on conventional infrared supplementary lighting, which has problems such as short illumination distance, high image noise, and low detail recognition. The imaging effect in completely dark environments or environments with smoke and dust interference still needs to be improved.

[0005] Therefore, we propose a binocular dual-camera intercom explosion-proof safety monitoring device. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a binocular dual-lens intercom explosion-proof safety monitoring device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A binocular dual-camera intercom explosion-proof safety monitoring device includes a transparent component, a top cover fixedly mounted below the transparent component, an upper housing fixedly mounted below the top cover, a main board fixedly mounted inside the upper housing, an explosion-proof glass fixedly mounted below the upper housing, a small screen cover fixedly mounted on the outer side of the explosion-proof glass, the small screen cover cooperating with the explosion-proof glass and embedded in the side of the housing, a lower housing fixedly mounted at the bottom of the upper housing, the lower housing being made of aluminum-magnesium alloy, a pan-tilt camera mounted inside the transparent component, and a transparent component clamping ring provided at the connection between the transparent component and the upper housing.

[0008] As a further embodiment of the present invention: the transparent component is installed on the upper shell, the interior is coated with epoxy resin and the adhesive bonding surface is ≥10mm, and a rubber sealing ring is installed inside. The components are pressed together by a threaded connection through the transparent component clamping ring. After assembly by adhesive thread connection, the upper shell, transparent component, transparent component clamping ring and top cover form a new integrated top cover.

[0009] As a further embodiment of the present invention: the integrated top cover has a protrusion inside, and hanging rings are installed on both sides by screws. The integrated top cover has a groove on the outside. A gimbal bracket is provided inside the upper housing. A display module is provided inside the upper housing.

[0010] As a further embodiment of the present invention: an explosion-proof button assembly is installed on the side of the lower housing, a spring is provided on the side of the lower housing, a button is provided on one side of the spring, a button shaft is provided on the other side of the spring, an open retaining ring is provided on one side of the button shaft, a bushing is provided on the outer side of the button shaft, the bushing and the button shaft form a cylindrical explosion-proof mating surface, the mating surface length is ≥12.5mm, the machining gap is ≤0.15mm, the bushing 135 and the lower housing 7 are connected by threads, the thread length is ≥8mm and the number of engagement threads is greater than the number of threads.

[0011] As a further embodiment of the present invention: a self-locking switch is provided on one side of the lower housing, a support frame is provided below the display module, a connector is provided at the bottom of the lower housing, and a speaker cover is provided inside the lower housing.

[0012] As a further embodiment of the present invention: an explosion-proof noise-reducing microphone assembly is provided on the inner side of the lower housing; a first control circuit is provided inside the lower housing; an internal microphone is installed on the first control circuit; a second control circuit is provided below the first control circuit; a near-field microphone is installed on the second control circuit board; a sound-transmitting hole one is opened at the front of the near-field microphone; a far-field microphone is installed on the second control circuit board; a sound-transmitting hole two is opened at the front of the far-field microphone; sound-absorbing cotton is provided below the second control circuit board; an eTPFE water-proof and breathable membrane is provided below the sound-absorbing cotton; an explosion-proof shell is provided on the outer side of the eTPFE water-proof and breathable membrane; a sound-collecting port is opened at the front of the first sound-collecting hole; a sound-collecting horn is opened at the front of the second sound-collecting hole; and an explosion-proof stainless steel mesh is provided on the outer side of the explosion-proof shell.

[0013] As a further embodiment of the present invention: a fixed camera is provided inside the lower housing, a magnet is fixedly provided at the bottom of the lower housing, a battery is fixedly provided at the bottom of the lower housing, and the magnet is fixed to the bottom of the device by screws.

[0014] As a further embodiment of the present invention: the explosion-proof charging port assembly comprises an adapter, a charging interface, an explosion-proof plug, and an O-ring. The adapter has an internal charging interface sealed with epoxy resin, with a sealing length ≥20mm. The adapter is threaded to the lower housing, with a thread length ≥8mm and more than 5 engagement threads.

[0015] Compared with the prior art, the present invention provides a binocular dual-lens intercom explosion-proof safety monitoring device, which has the following beneficial effects: This invention discloses a binocular co-vision system, primarily comprising a pan-tilt camera, a fixed camera, and a pan-tilt unit and bracket. The pan-tilt unit and bracket are fixedly installed within the main cavity. The pan-tilt camera is mounted on the pan-tilt unit, located below a transparent component. This pan-tilt unit can be controlled to rotate horizontally and vertically, thereby achieving wide-range, blind-spot-free active scanning and specific target tracking and imaging. The fixed camera, secured to the device via a bracket structure, provides uninterrupted, fixed-view monitoring footage, particularly suitable for covering the area in front of the operator or critical fixed areas. The video signals from both cameras are processed via the mainboard, allowing the user to simultaneously acquire the controllable, directional view from the pan-tilt camera and the constant view from the fixed camera, achieving... The device combines global overview with close-up shots, and features simultaneous recording from a "second perspective," solving the problems of limited field of view and blind spots inherent in monocular devices. To achieve clear remote voice communication, the device integrates high-quality pickup and playback units, including an explosion-proof noise-reducing microphone assembly installed inside the housing, corresponding to the pickup holes on the housing for high-sensitivity acquisition of ambient sound. A speaker cover overlays the speaker inside the housing, corresponding to the sound outlet on the housing. Its steel mesh structure ensures sound transmission while meeting explosion-proof requirements. The speaker boasts high power and volume, ensuring clear and audible communication even in noisy environments. The integrated top cover has a groove on the outside for easy attachment of product information labels.

[0016] In this invention, a far-field microphone and a near-field microphone are mounted on a second control circuit board. The far-field microphone has a 1.4mm sound hole at the front and a 120-degree horn opening at the front. The near-field microphone has a 1.0mm sound hole at the front and a 90-degree horn opening at the front. The different sizes of the holes and horn openings create a difference in sound acquisition distance. This difference is determined by the operational amplifier on the second control circuit board. When external personnel are conversing, both microphones can receive sound. By analyzing the time difference and signal strength of the sound feedback signal, it can be determined whether the conversation is from a distant or near location. The internal amplifier then activates different gain settings for the far-field microphone. The dialogue activates the far-field acquisition microphone, while the near-field dialogue activates the near-field acquisition microphone. Another microphone serves as noise compensation, thus achieving clear acquisition at both near and far distances. Simultaneously, an internal acquisition microphone is installed inside the main unit to collect noise from inside the integrated top cover, generating noise cancellation. After differential integration of the signal through the first control circuit, it is sent to the MCU for processing, effectively preventing internal speaker and motor noise from entering the external pickup microphone, achieving clear acquisition. The battery is located at the bottom of the device and is secured by padding, ensuring reliable connection and easy replacement. The battery power display module is visible through a small window in the casing, displaying the remaining battery power in real time. Magnets are fixed to the bottom of the device with screws, allowing the device to adhere to iron surfaces, greatly enhancing the convenience of temporary deployment.

[0017] This invention achieves explosion-proof certification levels Ex db IIC T6 Gb, dust explosion-proof certification Ex tb IIIC T80℃Db, and protection level IP66. It features a simple, lightweight structure, ease of production and processing, explosion-proof deployment in the field, a large monitoring range, flexible and comprehensive viewing angles, strong interactivity, intuitive command and communication, and supports 4G / 5G networks. It is suitable for widespread use in scenarios such as temporary industrial site monitoring, mobile inspections, and temporary deployment.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a binocular dual-camera intercom explosion-proof safety monitoring device proposed in this invention; Figure 2 This is a cross-sectional structural diagram of a binocular co-camera intercom explosion-proof safety monitoring device proposed in this invention; Figure 3 This is a partial cross-sectional structural diagram of a binocular co-photograph intercom explosion-proof safety monitoring device proposed in this invention; Figure 4 This is a partial cross-sectional structural diagram of a binocular co-photograph intercom explosion-proof safety monitoring device proposed in this invention; Figure 5 This is a partial cross-sectional structural diagram of a binocular co-photograph intercom explosion-proof safety monitoring device proposed in this invention; Figure 6 This is a schematic diagram of the explosion-proof charging port assembly of a binocular dual-lens intercom explosion-proof safety monitoring device proposed in this invention.

[0020] In the diagram: 1. Transparent component; 2. Top cover; 3. Upper housing; 4. Mainboard; 401. Integrated top cover; 5. Explosion-proof screen glass; 501. Internal microphone; 502. Near-field microphone; 503. Far-field microphone; 504. Sound hole one; 6. Small screen cover; 7. Lower housing; 8. Gimbal camera; 9. Transparent component clamping ring; 10. Hanging ring; 11. Gimbal bracket; 12. Display module; 13. Explosion-proof button assembly; 131. Spring; 132. Button; 133. Button shaft; 134. Opening retaining ring; 135. Bushing; 14. Self-locking switch; 15. Support frame; 16. Connection Components; 17. Speaker muffler; 18. Explosion-proof noise reduction pickup assembly; 181. First control circuit; 182. Second control circuit; 183. Sound-absorbing cotton; 184. eTPFE water-proof and breathable membrane; 185. Explosion-proof shell; 186. Second sound-permeable hole; 187. 120-degree sound-collecting horn; 188. Explosion-proof stainless steel mesh; 189. 90-degree sound-collecting port; 20. Fixed camera; 21. Magnet; 22. Battery; 23. Screw one; 24. Screw two; 25. Explosion-proof charging port assembly; 251. Adapter; 252. Charging interface; 253. Explosion-proof plug; 254. O-ring rubber seal. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Example: A binocular dual-camera intercom explosion-proof safety monitoring device includes a transparent component 1, a top cover 2 fixedly installed below the transparent component 1, an upper housing 3 fixedly installed below the top cover 2, a main board 4 fixedly installed inside the upper housing 3, an explosion-proof glass 5 fixedly installed below the upper housing 3, a small screen cover 6 fixedly installed on the outside of the explosion-proof screen glass 5, the small screen cover 6 cooperates with the explosion-proof screen glass 5 and is embedded in the side of the housing, a lower housing 7 fixedly installed at the bottom of the upper housing 3, the outer shell of the lower housing 7 is made of aluminum-magnesium alloy, a pan-tilt camera 8 is installed inside the transparent component 1, and a transparent component clamping ring 9 is provided at the connection between the transparent component 1 and the upper housing 3.

[0024] like Figures 1-6As shown, the transparent component 1 is installed on the upper housing 3, with epoxy resin coated inside and an adhesive bonding surface ≥10mm. A rubber sealing ring is also installed inside. The components are pressed together by a threaded connection via a transparent component clamping ring 9. The assembled upper housing 3, transparent component 1, transparent component clamping ring 9, and top cover 2 are connected by adhesive threads to form a new integrated top cover 401. The integrated top cover 401 has protrusions inside, and hanging rings 10 are installed on both sides by screws 24. The integrated top cover 401 has grooves on the outside, and the upper housing 3 has internal features... The gimbal bracket 11 has a display module 12 inside the upper housing 3. An explosion-proof button assembly 13 is installed on the side of the lower housing 7. A spring 131 is installed on the side of the lower housing 7. A button 132 is installed on one side of the spring 131, and a button shaft 133 is installed on the other side of the spring 131. An open retaining ring 134 is installed on one side of the button shaft 133. A bushing 135 is installed on the outer side of the button shaft 133. The bushing 135 and the button shaft 133 form a cylindrical explosion-proof mating surface with a mating surface length ≥12.5mm and a machining gap ≤0.A 15mm bushing 135 is threaded to the lower housing 7, with a thread length ≥8mm and more than 5 engagement threads. A self-locking switch 14 is provided on one side of the lower housing 7. A support frame 15 is provided below the display module 12. A connector 16 is provided at the bottom of the lower housing 7. A speaker muffler 17 is provided inside the lower housing 7. An explosion-proof noise-reducing microphone assembly 18 is provided inside the lower housing 7. A first control circuit 181 is provided inside the lower housing 7. An internal acquisition microphone 501 is installed on the first control circuit 181. A second control circuit 182 is provided below the first control circuit 181. The second control circuit board 182 A near-field acquisition microphone 502 is installed on the upper part of the control circuit board 182. The near-field acquisition microphone 502 has a sound-transmitting hole 504 at its front. A far-field acquisition microphone 503 is installed on the second control circuit board 182. The far-field acquisition microphone 503 has a sound-transmitting hole 186 at its front. A sound-absorbing cotton 183 is installed below the second control circuit board 182. An eTPFE waterproof and breathable membrane 184 is installed below the sound-absorbing cotton 183. An explosion-proof shell 185 is installed on the outside of the eTPFE waterproof and breathable membrane 184. A 90-degree sound-collecting port 189 is opened at the front of the sound-transmitting hole 504. A 120-degree sound-collecting horn port 187 is opened at the front of the sound-transmitting hole 186. The explosion-proof shell 185 is located on the outside of... An explosion-proof stainless steel mesh 188 is provided. A fixed camera 20 is installed inside the lower housing 7. A magnet 21 and a battery 22 are fixedly installed at the bottom of the lower housing 7. The magnet 21 is fixed to the bottom of the device by screws 23. The explosion-proof charging port assembly 25 consists of an adapter 251, a charging interface 252, an explosion-proof plug 253, and an O-ring rubber seal 254. The charging interface 252 is installed inside the adapter 251 and sealed with epoxy resin with a sealing length ≥20mm. The adapter 251 is threaded to the lower housing 1 with a thread length ≥8mm and more than 5 engagement threads. When using a binocular camera... When discussing the explosion-proof safety monitoring device, users can activate the device via the self-locking switch 14, select the monitoring mode via the explosion-proof button assembly 13 or the remote client, and the fixed camera 20 continuously provides a basic viewing angle. The pan-tilt camera 8 can rotate under command to scan the area of ​​interest. Monitoring video and audio data are processed by the motherboard 4 and transmitted to the back-end monitoring center. Back-end personnel can directly communicate with the site via the audio system. Magnet 21 allows the device to quickly attach to a suitable position. Strong night vision is ensured by the camera's F1.0 aperture and 30m strong fill light, automatically switching to night vision mode even in dim environments while still obtaining clear images.

[0025] Working principle: When using the dual-lens explosion-proof safety monitoring device, the user can start the device through the self-locking switch 14, select the monitoring mode through the explosion-proof button component 13 or the remote client, the fixed camera 20 continuously provides the basic viewing angle, the pan-tilt camera 8 can rotate under command to scan the area of ​​interest, the monitoring video and audio data are processed by the motherboard 4 and transmitted to the background monitoring center, the background personnel can communicate directly with the site through the audio system, the magnet 21 enables the device to be quickly attached to a suitable position, the strong night vision function is ensured by the camera's own F1.0 large aperture and 30m strong supplementary light, automatically switch to night vision mode in dim environment, and still obtain clear images.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A two-eye co-captured talkback explosion-proof safety monitoring instrument comprising a transparent piece (1), characterized in that A top cover (2) is fixedly installed below the transparent component (1), an upper housing (3) is fixedly installed below the top cover (2), a main board (4) is fixedly installed inside the upper housing (3), an explosion-proof glass (5) is fixedly installed below the upper housing (3), a small screen cover (6) is fixedly installed on the outside of the explosion-proof screen glass (5), the small screen cover (6) cooperates with the explosion-proof screen glass (5) and is embedded in the side of the housing, a lower housing (7) is fixedly installed at the bottom of the upper housing (3), the outer shell of the lower housing (7) is made of aluminum-magnesium alloy, a gimbal camera (8) is installed inside the transparent component (1), and a transparent component clamping ring (9) is installed at the connection between the transparent component (1) and the upper housing (3).

2. The two-eye co-captured talkback explosion-proof safety monitor according to claim 1, characterized in that The transparent part (1) is installed on the upper shell (3), the inside is coated with epoxy resin and the adhesive bonding surface is ≥10mm, and a rubber sealing ring is installed inside. The components are pressed by the transparent part clamping ring (9) with a threaded connection. After the upper shell (3), transparent part (1), transparent part clamping ring (9), and top cover (2) are assembled by adhesive thread connection, a new integrated top cover (401) is formed.

3. The two-eye co-captured talkback explosion-proof safety monitor according to claim 1, characterized in that The integrated top cover (401) has a protrusion inside, and hanging rings (10) are installed on both sides by screws (24). The integrated top cover (401) has a groove on the outside. The upper shell (3) has a gimbal bracket (11) inside and a display module (12) inside.

4. The two-eye co-captured talkback explosion-proof safety monitor according to claim 3, characterized in that An explosion-proof button assembly (13) is installed on the side of the lower housing (7). A spring (131) is provided on the side of the lower housing (7). A button (132) is provided on one side of the spring (131). A button shaft (133) is provided on the other side of the spring (131). An open retaining ring (134) is provided on one side of the button shaft (133). A bushing (135) is provided on the outer side of the button shaft (133). The bushing (135) and the button shaft (133) form a cylindrical explosion-proof mating surface with a mating surface length ≥ 12.5 mm and a machining gap ≤ 0.15 mm. The bushing (135) and the lower housing (7) are connected by threads with a thread length ≥ 8 mm and a number of engagement threads greater than 5.

5. The two-eye co-captured talkback explosion-proof safety monitor according to claim 4, characterized in that A self-locking switch (14) is provided on one side of the lower housing (7), a support frame (15) is provided below the display module (12), a connector (16) is provided at the bottom of the lower housing (7), and a speaker cover (17) is provided inside the lower housing (7).

6. The two-eye co-captured talkback explosion-proof safety monitor according to claim 5, characterized in that An explosion-proof noise-reducing microphone assembly (18) is provided on the inner side of the lower housing (7). A first control circuit (181) is provided inside the lower housing (7). An internal acquisition microphone (501) is installed on the first control circuit (181). A second control circuit (182) is provided below the first control circuit (181). A near-field acquisition microphone (502) is installed on the second control circuit board (182). A sound-transmitting hole (504) is opened at the front of the near-field acquisition microphone (502). A far-field acquisition microphone (503) is installed on the second control circuit board (182). The far-field acquisition microphone (503) has a second sound-transmitting hole (186) at the front. The second control circuit board (182) is provided with sound-absorbing cotton (183) below it. An eTPFE waterproof and breathable membrane (184) is provided below the sound-absorbing cotton (183). An explosion-proof shell (185) is provided on the outside of the eTPFE waterproof and breathable membrane (184). The first sound-transmitting hole (504) has a 90-degree sound-collecting port (189) at the front. The second sound-transmitting hole (186) has a 120-degree sound-collecting horn (187) at the front. An explosion-proof stainless steel mesh (188) is provided on the outside of the explosion-proof shell (185).

7. A binocular dual-lens intercom explosion-proof safety monitoring device according to claim 6, characterized in that... The lower housing (7) is equipped with a fixed camera (20), a magnet (21) is fixedly installed at the bottom of the lower housing (7), a battery (22) is fixedly installed at the bottom of the lower housing (7), and the magnet (21) is fixed to the bottom of the device by a screw (23).

8. The two-eye co-captured talkback explosion-proof safety monitor according to claim 7, characterized in that The explosion-proof charging port assembly (25) comprises an adapter (251), a charging interface (252), an explosion-proof plug (253), and an O-ring rubber seal (254). The adapter (251) is internally installed with the charging interface (252) sealed with epoxy resin, and the sealing length is ≥20mm. The adapter (251) is threaded to the lower housing (1), and the thread length is ≥8mm with more than 5 engagement threads.

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