Sensor Detection System for Monitoring Atmospheric Particle Concentration

Abstract

The present invention discloses a sensor detection system for monitoring the concentration of atmospheric particulate matter, including a laser emission unit. The laser emission unit includes a laser source and an adjustment and support device for carrying the laser source. The adjustment and support device includes a carrier plate. A flat plate is rotatably connected to the carrier plate. A vertical plate is arranged on the upper surface of the flat plate. The lower part of the vertical plate is rotatably connected to the vertical part of an L-shaped plate. The horizontal part of the L-shaped plate extends outward along the upper surface of the carrier plate. The first screw rod connected to the upper part of the L-shaped plate horizontally passes through the first arc-shaped guiding hole on the vertical plate and is connected to a first nut. A second arc-shaped guiding hole is formed on the flat plate. A second screw rod vertically arranged on the carrier plate passes through the second arc-shaped guiding hole and is connected to a second nut. An L-shaped micro-moving plate for carrying the laser light source is arranged on one side of the L-shaped plate. The L-shaped micro-moving plate is correspondingly arranged with the L-shaped plate and is connected at the corner through steel balls and is tightened by a spring. The laser emission unit of the present invention can achieve position adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of atmospheric monitoring equipment, and particularly to a sensor detection system for monitoring the concentration of atmospheric particulate matter. Background Art

[0002] Mie scattering believes that particles are not only obstacles in the propagation of laser but also have absorption, partial transmission, and radiation effects on the laser. When a laser beam passes through a transparent or semi-transparent medium with inhomogeneities (such as particulate aerosol), the light will disperse in all directions. When the particle radius is large, the light incident on the particle converges within a very small angle in front of the particle, with a small deviation angle of the light and small scattering. When the particle radius is small, the diffraction effect of the particle on the light is obvious. Therefore, when the light passes through the particle, part of the light will diffract from the edge of the particle to the surrounding, with a large deviation angle of the light and large scattering. The strength of the diffraction effect is related to the incident wavelength.

[0003] When the particle passes through the light-sensitive area formed by the focused laser, the light scattered by the particle is collected by the micro-optical detection array on the imaging window. The micro-optical detection array converts the received light intensity signal into an equivalent voltage signal. The density and position of the signal are filtered to extract the unit concentration value and position corresponding to the particle for inversion. The preprocessed data interface outputs to the platform in real time. At the same time, the monitoring device interacts with and controls the server platform software to complete the calculation of the particulate matter concentration.

[0004] Based on the above technology, a sensor detection system for monitoring the concentration of atmospheric particulate matter has been developed, including a laser light source, a detector based on a micro-optical detection array, and a processor or processing platform. The received light intensity signal is processed by the micro-optical detection array to obtain the calculation of the particulate matter concentration.

[0005] However, in the prior art, the setting of the laser light source needs to be adjusted, and the currently used adjustment device is not convenient to use. Summary of the Invention

[0006] The purpose of the present invention is to provide a sensor detection system for monitoring the concentration of atmospheric particulate matter in view of the technical defects existing in the prior art.

[0007] The technical solution adopted to achieve the purpose of the present invention is as follows:

[0008] A sensor detection system for monitoring the concentration of atmospheric particulate matter, including a laser emission unit. The laser emission unit includes a laser source and an adjustment and support device for carrying the laser source. The adjustment and support device includes a carrier plate, on which a horizontally arranged and horizontally rotatable flat plate is rotatably connected. On the upper surface of the flat plate, a vertical plate is arranged. The lower part of the vertical plate is rotatably connected to the vertical part of an L-shaped plate. The horizontal part of the L-shaped plate extends outward along the upper surface of the carrier plate. The first screw rod connected to the upper part of the L-shaped plate horizontally passes through the first arc-shaped guide hole on the vertical plate and is connected to a first nut. A second arc-shaped guide hole is formed on the flat plate. A second screw rod vertically arranged on the carrier plate passes through the second arc-shaped guide hole and is connected to a second nut;

[0009] An L-shaped micro-moving plate is arranged on one side of the L-shaped plate. A laser source is installed at the upper end of the horizontal part of the L-shaped micro-moving plate. The horizontal part and the vertical part of the L-shaped micro-moving plate are correspondingly arranged with the horizontal part and the vertical part of the L-shaped plate, and are connected by steel balls at the corner. The horizontal part of the L-shaped micro-moving plate and the horizontal part of the L-shaped plate are tightened by a first spring, and the vertical part of the L-shaped micro-moving plate and the vertical part of the L-shaped plate are tightened by a second spring.

[0010] Preferably, a first hole is formed at the connecting corner of the horizontal part and the vertical part of the L-shaped micro-moving plate, and a corresponding second hole is formed at the connecting corner of the horizontal part and the vertical part of the L-shaped plate. The steel ball is arranged between the first hole and the second hole and is partially embedded in the first hole and the second hole.

[0011] Preferably, the first spring and the second spring are each two and are arranged at intervals.

[0012] Preferably, the flat plate and the carrier plate are rotatably connected by a first rotating shaft, and the lower part of the vertical plate is rotatably connected to the vertical part of the L-shaped plate by a second rotating shaft.

[0013] Preferably, there is a power supply on one side of the upper end of the carrier plate.

[0014] Preferably, there is a laser source control module on one side of the upper end of the carrier plate.

[0015] For the sensor detection system for monitoring the concentration of atmospheric particulate matter of the present invention, after the laser emission unit is installed by the above technology, the position can be adjusted to cooperate with a high-performance camera with a long focal length to realize the all-round detection of the environmental particulate matter concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric schematic diagram of the laser emission unit of the sensor detection system for monitoring the concentration of atmospheric particulate matter of the present invention.

[0017] Figure 2 Another axonometric view of the laser emission unit of the sensor detection system for monitoring atmospheric particulate matter concentration according to the present invention.

[0018] Figure 3 Top view of the laser emission unit of the sensor detection system for monitoring atmospheric particulate matter concentration according to the present invention.

[0019] Figure 4 Another axonometric view (excluding the laser source) of the laser emission unit of the sensor detection system for monitoring atmospheric particulate matter concentration according to the present invention.

[0020] Figure 5 Partial structure diagram of the laser emission unit of the sensor detection system for monitoring atmospheric particulate matter concentration according to the present invention.

[0021] Figure 6 Schematic diagram of the principle of the sensor detection system for monitoring atmospheric particulate matter concentration according to the present invention. Specific embodiments

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] As Figures 1-5 shown, a sensor detection system for monitoring atmospheric particulate matter concentration according to an embodiment of the present invention includes a laser emission unit. The laser emission unit includes a laser source 100 and an adjustment support device for carrying the laser source. The adjustment support device includes a carrier plate 1. A flat plate that is horizontally arranged and can rotate horizontally is rotatably connected to the carrier plate. A vertical plate 2 is arranged on the upper surface of the flat plate. The lower part of the vertical plate is rotatably connected to the vertical part of an L-shaped plate 3. The horizontal part of the L-shaped plate extends outward along the upper surface of the carrier plate. The first screw rod connected to the upper part of the L-shaped plate horizontally passes through the first arc-shaped guide hole on the vertical plate and is connected to a first nut 11. A second arc-shaped guide hole is formed on the flat plate. A second screw rod vertically arranged on the carrier plate 1 passes through the second arc-shaped guide hole and is connected to a second nut 10;

[0024] An L-shaped micro-moving plate 14 is arranged on one side of the L-shaped plate. A laser source 100 is installed at the upper end of the horizontal part of the L-shaped micro-moving plate. The horizontal part and the vertical part of the L-shaped micro-moving plate are correspondingly arranged with the horizontal part and the vertical part of the L-shaped plate, and are connected by steel balls 18 at the corner. The horizontal part of the L-shaped micro-moving plate and the horizontal part of the L-shaped plate are tightened by a first spring 17. The vertical part of the L-shaped micro-moving plate and the vertical part of the L-shaped plate are tightened by a second spring 16.

[0025] Among them, there is a micrometer at positions near both ends of the L-shaped microplate, including a first micrometer 5 and a second micrometer 4. The adjusting heads of the two micrometers are in contact with the corresponding surfaces of the L-shaped plate, that is, in contact with the first contact point 12 of the L-shaped plate and the second contact point correspondingly.

[0026] As an optional embodiment, the flat plate is rotatably connected to the carrier plate through a first rotating shaft 6, and the lower part of the vertical plate is rotatably connected to the vertical part of the L-shaped plate through a second rotating shaft 9.

[0027] The flat plate is connected to the carrier plate through the first rotating shaft and is in contact and cooperation with the second nut 10 for hand-tightening operation. When making a rough left-right adjustment, after loosening the second nut 10 for hand-tightening operation, rotate the flat plate to move the laser source left and right, and lock the second nut for hand-tightening operation after adjusting to the approximate range. The vertical plate and the L-shaped plate are connected by the second rotating shaft 9. When making a rough up-down adjustment, after loosening the first nut 11 for hand-tightening operation in the shape of a butterfly, move the vertical plate back and forth to adjust the laser source up and down, and lock the first nut 11 for hand-tightening operation within the approximate range.

[0028] The L-shaped microplate is supported by steel balls between the L-shaped plate, and further supported by the first micrometer 5 and the second micrometer 4, the first micrometer 5. The two are pulled by four spring hooks. When making a fine adjustment, rotate the second micrometer 4 and the first micrometer 5 to make an up-down adjustment and adjust the attitude of the laser source left and right.

[0029] Among them, a laser source fixing seat 15 is arranged on the L-shaped microplate to install the laser source 100.

[0030] Specifically, spring connectors 19 are arranged on the outer sides of the L-shaped microplate and the L-shaped plate. After the two ends of the first spring 17 and the second spring 16 pass through the spring holes of the L-shaped microplate and the L-shaped plate, they are connected to the spring connectors.

[0031] As an optional embodiment, a first hole is formed at the corner where the horizontal part and the vertical part of the L-shaped microplate are connected, and a corresponding second hole is formed at the corner where the horizontal part and the vertical part of the L-shaped plate are connected. The diameters of the first hole and the second hole are smaller than the diameter of the steel ball, and the steel ball 18 is arranged between the first hole and the second hole and partially embedded in the first hole and the second hole.

[0032] As an optional embodiment, there are two first springs and two second springs respectively, and they are arranged at intervals.

[0033] As an alternative embodiment, there is a power source 8 on one side of the upper end of the carrier plate 1 for supplying power to the laser source, and a laser source control module 7 on one side of the upper end of the carrier plate 1 for controlling the laser source to emit laser light.

[0034] The sensor detection system for monitoring the concentration of atmospheric particulate matter of the present invention may further include a camera 200 or a detector based on a micro-optoelectronic detection array, and a processor 300 or a processing platform cooperating with the camera 200 or the detector based on the micro-optoelectronic detection array. After receiving the light intensity signal through the camera 200 or the detector based on the micro-optoelectronic detection array, the processor processes it to obtain the calculation of the particulate matter concentration (this is prior art and will not be elaborated further).

[0035] After the laser emission unit of the sensor detection system for monitoring the concentration of atmospheric particulate matter of the present invention is installed by the above technology, its position can be adjusted, so that it can effectively cooperate with a high-performance camera with a long focal length to achieve all-round detection of the environmental particulate matter concentration.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A sensor detection system for monitoring the concentration of atmospheric particulate matter, including a laser emission unit, the laser emission unit includes a laser source and an adjustment and support device for carrying the laser source, the adjustment and support device includes a carrier plate, characterized in that, A flat plate which is horizontally arranged and can rotate horizontally is rotatably connected to the bearing plate. A vertical plate is arranged on the upper surface of the flat plate. The lower part of the vertical plate is rotatably connected to the vertical part of an L-shaped plate. The horizontal part of the L-shaped plate extends outward along the upper surface of the bearing plate. The first screw rod connected to the upper part of the L-shaped plate horizontally passes through the first arc-shaped guiding hole on the vertical plate and is connected to a first nut. A second arc-shaped guiding hole is formed on the flat plate. The second screw rod vertically arranged on the bearing plate passes through the second arc-shaped guiding hole and is connected to a second nut; An L-shaped micro-moving plate is arranged on one side of the L-shaped plate. A laser source is installed at the upper end of the horizontal part of the L-shaped micro-moving plate. The horizontal part and the vertical part of the L-shaped micro-moving plate are correspondingly arranged with the horizontal part and the vertical part of the L-shaped plate, and are connected by steel balls at the corner part. The horizontal part of the L-shaped micro-moving plate and the horizontal part of the L-shaped plate are tightened by a first spring, and the vertical part of the L-shaped micro-moving plate and the vertical part of the L-shaped plate are tightened by a second spring; A first micrometer gauge and a second micrometer gauge are respectively arranged at positions near both ends of the L-shaped micro-moving plate. The adjusting heads of the two micrometer gauges are in contact with the corresponding surfaces of the L-shaped plate.

2. The sensor detection system for monitoring the concentration of atmospheric particulate matter according to claim 1, wherein A first hole is formed at the corner part where the horizontal part and the vertical part of the L-shaped micro-moving plate are connected. A corresponding second hole is formed at the corner part where the horizontal part and the vertical part of the L-shaped plate are connected. The steel ball is arranged between the first hole and the second hole and partially embedded into the first hole and the second hole.

3. The sensor detection system for monitoring atmospheric particulate matter concentration according to claim 1, characterized in that, The first spring and the second spring are respectively two and are arranged at intervals.

4. The sensor detection system for monitoring the concentration of atmospheric particulate matter according to claim 1, wherein The flat plate and the bearing plate are rotatably connected through a first rotating shaft. The lower part of the vertical plate is rotatably connected to the vertical part of the L-shaped plate through a second rotating shaft.

5. The sensor detection system for monitoring the concentration of atmospheric particulate matter according to claim 1, characterized in that, There is a power supply on one side of the upper end of the bearing plate.

6. The sensor detection system for monitoring the concentration of atmospheric particulate matter according to claim 1, characterized in that, There is a laser source control module on one side of the upper end of the bearing plate.

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