CN212514312U

CN212514312U - Monitoring equipment with self-checking function

Info

Publication number: CN212514312U
Application number: CN202021070510.3U
Authority: CN
Inventors: 沈凤祥; 苏灿灿; 唐钰婷; 刘英奇
Original assignee: Suzhou Optfull Environmental Science And Technology Co ltd
Current assignee: Suzhou Optfull Environmental Science And Technology Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-09
Anticipated expiration: 2030-06-11

Abstract

The utility model relates to an environmental monitoring technical field, concretely relates to monitoring facilities with self-checking function, including shell, first detector and light source, the shell has first window and second window, and transparent first lens is installed to first window, and transparent second lens is installed to the second window. The first lens and the second lens are opposite and form an included angle. The first detector is located in the interior cavity of the housing. The light source is located in the inner cavity, and the light source and the first detector are located on the inner sides of the second lens and the first lens respectively. The light of the light source passes through the second lens and the first lens in sequence and then is received by the first detector. The first detector compares the real-time received light data with the standard data, so as to judge whether the first lens and the second lens are polluted or not. The utility model discloses a monitoring facilities with self-checking function can improve the degree of accuracy of judging first lens and second lens pollution condition.

Description

Monitoring equipment with self-checking function

Technical Field

The utility model relates to an environmental monitoring technical field, concretely relates to monitoring facilities with self-checking function.

Background

In the field of environmental monitoring technology, the environment is generally monitored by on-line monitoring equipment. The on-line monitoring device generally comprises a shell and a monitor arranged in an inner cavity of the shell, wherein the shell is provided with a monitoring window, and the monitoring window is provided with a lens. Pollutants such as dust and the like are easy to fall on the lens, namely, the lens is easy to be polluted by the external environment. After the lens is contaminated, the accuracy of the monitor data is reduced.

Currently, generally, a professional repeatedly judges whether a lens of an online monitoring device is polluted or not. There are problems in that: the judgment is complicated and the judgment accuracy is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a monitoring facilities with self-checking function, it can improve the degree of accuracy of judging the lens pollution condition.

To achieve the purpose, the utility model adopts the following technical proposal:

a monitoring device with self-test functionality, comprising:

the lens holder comprises a shell, a first lens and a second lens, wherein the shell is provided with a first window and a second window, the first window is provided with a transparent first lens, and the second window is provided with a transparent second lens; the first lens and the second lens are opposite and arranged in an included angle;

a first probe located in the interior cavity of the housing;

a light source located in the lumen, the light source and the first detector being located inside the second lens and the first lens, respectively; and the light of the light source sequentially passes through the second lens and the first lens and is received by the first detector.

Preferably, in the monitoring device with self-checking function, the light source and the first detector are distributed on the same horizontal line.

Preferably, in the monitoring device with a self-test function described above, the first window and the second window form a V-shaped structure.

Preferably, in the monitoring device with self-checking function described above, the monitoring device with self-checking function further includes a second detector located in the inner cavity, and a part of the light source is received by the second detector after being reflected by the second lens.

Preferably, in the monitoring device with self-test function described above, the second detector and the light source are symmetrical with respect to a perpendicular bisector of the second lens.

Preferably, in the monitoring device with self-checking function described above, the monitoring device with self-checking function further includes a third probe and a slide mounted in the inner cavity; the light source is arranged on the slideway in a sliding manner; the light of the light source is emitted to the external environmental pollutants through the second lens, and the diffused light of the external environmental pollutants is received by the third detector through the first lens.

Preferably, in the monitoring device with a self-checking function described above, the monitoring device with a self-checking function further includes a first limiting body and a second limiting body, the first limiting body is configured to limit the light source at a first position located on the same horizontal line as the first detector, and the second limiting body is configured to limit the light source at a second position located on the perpendicular bisector of the second lens.

Preferably, in the monitoring device with a self-checking function described above, the monitoring device with a self-checking function further includes an aperture, and the aperture is disposed between the third detector and the first lens to narrow a light collecting range of the third detector.

Preferably, in the monitoring device with self-test function described above, the light source and the second detector located in the first position are symmetrical with respect to a perpendicular bisector of the second lens.

Preferably, in the monitoring device with self-test function, the light source is a laser light source, and the wavelength of the light source is 635nm to 660 nm.

The utility model discloses a monitoring facilities with self-checking function's beneficial effect lies in: the light source and the first detector are respectively positioned at the inner sides of the second lens and the first lens; the light of light source is received by first detector after second lens and first lens in proper order, and first detector compares light data received in real time with standard data to judge whether first lens and second lens are contaminated. The utility model discloses a monitoring facilities with self-checking function can improve the degree of accuracy of judging first lens and second lens pollution condition.

Drawings

Fig. 1 is a schematic structural diagram of a monitoring device with a self-checking function according to an embodiment of the present invention;

fig. 2 is a state diagram of the monitoring device with self-test function according to the embodiment of the present invention during self-test;

fig. 3 is a state diagram of the monitoring device with self-checking function when monitoring the external environment.

The component names and designations in the drawings are as follows: the monitoring device comprises a shell 10, a first window 11, a second window 12, a first lens 13, a second lens 14, an inner cavity 15, a first detector 20, a light source 30, a second detector 40, a slide way 50, a third detector 60, a diaphragm 70, a first limiting body 81, a second limiting body 82 and a monitoring device 100 with a self-checking function.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Fig. 1 is a schematic structural diagram of a monitoring device 100 with a self-checking function according to an embodiment of the present invention. Fig. 2 is a state diagram of the monitoring device 100 with self-checking function in self-checking according to the embodiment of the present invention.

As shown in fig. 1 to 2, the present embodiment discloses a monitoring apparatus 100 with a self-test function, and the monitoring apparatus 100 with a self-test function includes a housing 10, a first detector 20, and a light source 30. The housing 10 has a first window 11 and a second window 12, the first window 11 being fitted with a transparent first lens 13 and the second window 12 being fitted with a transparent second lens 14. The first lens 13 and the second lens 14 are disposed opposite to each other and form an included angle. A first probe 20 is located in the interior cavity 15 of the housing 10. The light source 30 is located in the inner cavity 15, and the light source 30 and the first detector 20 are located inside the second lens 14 and the first lens 13, respectively. The inner sides of the second lens 14 and the first lens 13 both refer to the sides facing the inner cavity 15, respectively. The light from the light source 30 passes through the second lens 14 and the first lens 13 in sequence, and then is received by the first detector 20.

The monitoring device 100 with the self-checking function of the embodiment has the beneficial effects that: the light source 30 and the first detector 20 are located inside the second lens 14 and the first lens 13, respectively. After passing through the second lens 14 and the first lens 13 in sequence, the light of the light source 30 is received by the first detector 20, and the first detector 20 compares the real-time received light data with the standard data, so as to determine whether the first lens 13 and the second lens 14 are contaminated. The utility model discloses a monitoring facilities with self-checking function 100 can improve the degree of accuracy of judging first lens 13 and the 14 pollution conditions of second lens. The standard data may be values obtained by combining data collected by the first detector 20 when the second lens 14 and the first lens 13 are free of contaminants with light attenuation data of the light source 30.

Preferably, the light source 30 and the first detector 20 are distributed on the same horizontal line, and at this time, the light of the light source 30 can be received by the first detector 20 more, which is favorable for further improving the accuracy of determining the contamination condition of the first lens 13 and the second lens 14.

Preferably, the first window 11 and the second window 12 form a V-shaped structure, so that after the first lens 13 is mounted to the first window 11 and the second lens 14 is mounted to the second window 12, the first lens 13 and the second lens 14 can be arranged oppositely and at an included angle.

After a period of use, the light source 30 may be weakened, which may affect the accuracy of determining the contamination of the first lens 13 and the second lens 14. In order to ensure the accuracy of determining the contamination of the first lens 13 and the second lens 14, the present embodiment adopts the following measures: as shown in fig. 2, the monitoring device 100 with self-test function further includes a second detector 40 located in the inner cavity 15, and a portion of the light from the light source 30 is reflected by the second lens 14 and then received by the second detector 40. The second detector 40 compares the real-time received light data with the standard light data to obtain the light attenuation data of the light source 30, and eliminates the influence of the light attenuation of the light source 30 on the judgment of the pollution condition of the first lens 13 and the second lens 14 through a formula. The standard light data may be a value when the light of the light source 30 is not attenuated.

Preferably, the second detector 40 is symmetrical to the light source 30 about the perpendicular bisector of the second lens 14, which is beneficial for the second detector 40 to receive more light from the light source 30, so as to improve the accuracy of the measurement of the light attenuation of the light source 30.

The monitoring apparatus 100 having the self-test function of the present embodiment includes a function of monitoring an external environment in addition to the above self-test function. Fig. 3 is a state diagram of the monitoring device 100 with self-checking function when monitoring the external environment. As shown in figure 3 of the drawings,

the monitoring device with self-test function 100 further comprises a third probe 60 and a slide way 50 mounted to the inner cavity 15. The light source 30 is slidably disposed on the slide way 50. The light from the light source 30 is transmitted to the external environmental pollutants through the second lens 14, and the scattered light of the external environmental pollutants is received by the third detector 60 through the first lens 13. The third detector 60 is used to monitor the external environment. Preferably, the slide 50 extends along a circular arc line, and the center of the circular arc line is the center point of the second lens 14. The advantage of providing the slide 50 is that: the position of the light source 30 may be changed after the self-test, so that the light of the light source 30 can be emitted to the external environment more and is easily received by the third detector 60, thereby improving the monitoring accuracy of the external environment.

Preferably, as shown in fig. 1, the monitoring device 100 with self-checking function further includes a first position-limiting body 81 and a second position-limiting body 82, wherein the first position-limiting body 81 is used for limiting the light source 30 at a first position, such as a position 30' shown in fig. 1, which is located at the same horizontal line with the first detector 20. The second stop 82 is adapted to stop the light source 30 at a second position on a perpendicular bisector of the second lens 14, such as the position shown at 30 ". The first limiting body 81 or the second limiting body 82 limits the light source 30, so that the light source 30 can be located at the first position or the second position quickly and accurately.

As shown in fig. 3, the monitoring device 100 with self-test function preferably further includes an aperture 70, where the aperture 70 is disposed between the third detector 60 and the first lens 13 to narrow the light collecting range of the third detector 60, which is beneficial to reduce interference of other optical factors of the external environment on the third detector 60.

Preferably, the light source 30 and the second detector 40 in the first position are symmetrical about a perpendicular bisector of the second lens 14, that is, when the light source 30 is in the first position (the position shown as 30' in fig. 1), the self-test function is performed, which includes detecting whether the first lens 13 and the second lens 14 are contaminated and detecting whether the light of the light source 30 is attenuated, wherein the detecting whether the light of the light source 30 is attenuated is to further improve the accuracy of the detection whether the first lens 13 and the second lens 14 are contaminated.

Preferably, the light source 30 of the present embodiment is a laser light source, and the wavelength range of the light source 30 is 635nm to 660nm, and in this wavelength range, the self-test and the monitoring accuracy of the monitoring device 100 with the self-test function of the present embodiment on the external environment are both relatively high.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A monitoring device with self-checking function, comprising:

a housing (10), the housing (10) having a first window (11) and a second window (12), the first window (11) having a transparent first lens (13) mounted thereon, the second window (12) having a transparent second lens (14) mounted thereon; the first lens (13) and the second lens (14) are opposite and arranged in an included angle;

a first probe (20), the first probe (20) being located in an inner cavity (15) of the housing (10);

a light source (30), the light source (30) being located in the inner cavity (15), and the light source (30) and the first detector (20) being located inside the second lens (14) and the first lens (13), respectively; the light of the light source (30) passes through the second lens (14) and the first lens (13) in sequence and then is received by the first detector (20).

2. Monitoring device with self-test function according to claim 1, characterized in that the light source (30) and the first detector (20) are distributed on the same horizontal line.

3. Monitoring device with self-test function according to claim 1, characterized in that the first window (11) and the second window (12) form a V-shaped structure.

4. The monitoring device with self-test function according to claim 1, wherein the monitoring device with self-test function (100) further comprises a second detector (40) located in the inner cavity (15), and part of the light source (30) is received by the second detector (40) after being reflected by the second lens (14).

5. Monitoring device with self-test function according to claim 4, characterized in that the second detector (40) is symmetrical to the light source (30) with respect to a perpendicular bisector of the second lens (14).

6. The monitoring device with self-test function according to claim 4, characterized in that the monitoring device with self-test function (100) further comprises a third probe (60) and a slide (50) mounted to the inner cavity (15); the light source (30) is arranged on the slideway (50) in a sliding manner; the light of the light source (30) is emitted to the external environmental pollutants through the second lens (14), and the diffused light of the external environmental pollutants is received by the third detector (60) through the first lens (13).

7. The monitoring device with self-test function according to claim 6, wherein the monitoring device with self-test function (100) further comprises a first limiting body (81) and a second limiting body (82), the first limiting body (81) is used for limiting the light source (30) to a first position which is located at the same horizontal line with the first detector (20), and the second limiting body (82) is used for limiting the light source (30) to a second position which is located at the vertical bisector of the second lens (14).

8. The monitoring device with self-test function according to claim 6, characterized in that the monitoring device with self-test function (100) further comprises an optical diaphragm (70), wherein the optical diaphragm (70) is arranged between the third detector (60) and the first lens (13) to narrow the light collection range of the third detector (60).

9. Monitoring device with self-test function according to claim 7, characterized in that the light source (30) in the first position is symmetrical to the second detector (40) with respect to a perpendicular bisector of the second lens (14).

10. Monitoring device with self-test function according to claim 1, characterized in that the light source (30) is a laser light source, the wavelength range of the light source (30) being 635-660 nm.