CN217210961U - Inspection well information detection equipment - Google Patents
Inspection well information detection equipment Download PDFInfo
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- CN217210961U CN217210961U CN202220311525.7U CN202220311525U CN217210961U CN 217210961 U CN217210961 U CN 217210961U CN 202220311525 U CN202220311525 U CN 202220311525U CN 217210961 U CN217210961 U CN 217210961U
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Abstract
The utility model relates to a radar field, in particular to inspection shaft information detection equipment. The inspection well information detection equipment adopts a sealed shell, and comprises an upper cover and a base, wherein the joint of the upper cover and the base is provided with a waterproof strip, so that the requirement on the sealing property inside the inspection well information detection equipment can be met; the utility model discloses an inspection shaft information detection equipment has still adopted the millimeter wave radar, is fixed in the inspection shaft through the setting and covers to towards the millimeter wave radar of the liquid level that detects, can realize detecting out the speed that detects out the liquid that detects, direction of motion, liquid level distance, angle information etc..
Description
Technical Field
The application relates to the field of radars, in particular to inspection well information detection equipment.
Background
The inspection well water level detection is an important content of urban drainage construction engineering, and relevant management departments need to master the operation condition of a drainage pipe network globally through an inspection well water level detection system, effectively identify silted pipe sections and find the abnormity of the drainage system in time so as to quickly make flood prevention response and ensure the traveling safety of residents.
The inspection well cover terminal detection equipment has the advantages of severe service environment, high waterproof and dustproof grade requirement, difficult realization of the design of an external scheme waterproof scheme and high cost. The existing technical scheme applied to the inspection well cover internal liquid level ranging is that inspection well cover terminal detection equipment is externally connected with various inspection well liquid level detection equipment, and ultrasonic liquid level detection and infrared/laser TOF liquid level detection are partially integrated.
The two prior arts have the disadvantages that the ultrasonic inspection well liquid level detection device is exposed in the inspection well environment, the detection result is easily influenced by the environment, for example, smoke, pressure or high temperature can influence the accuracy of the detection result, the detection result can be influenced if the detected object is a soft object, and in addition, the ultrasonic inspection well liquid level detection device can only detect distance information; the detection result of infrared/laser TOF liquid level detection is easily affected by environmental factors such as smoke, gas and strong light, and the measurement accuracy is also affected by the characteristics of the target to be measured, for example, distance information of dark/dark objects, transparent surfaces and liquid cannot be accurately measured, and in addition, the infrared/laser TOF can only measure the distance information.
Therefore, an inspection well information detection device which is not affected by environment, has high reliability and can measure a large amount of information is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the inspection well information detection equipment which uses the millimeter wave radar, is not influenced by the environment and the characteristics of the object to be detected, has high reliability and can measure more information,
in order to achieve the above object, the present invention has the following configurations:
an inspection well information detection device comprises a shell, a sealed cavity inside the shell and a radar device arranged in the sealed cavity;
the detection equipment is fixed on the surface of the inspection well cover facing the detected liquid level.
In this inspection shaft information detection equipment, the radar device include radar sensor and radar antenna, radar antenna install in on the radar sensor.
In this inspection shaft information detection equipment, radar antenna include radar antenna loudspeaker to and be connected with this radar antenna loudspeaker and its inside radar antenna pedestal that is provided with radar sensor.
In the inspection well information detection equipment, the radar antenna horn is arranged above the radar sensor; the horn mouth of the radar antenna horn faces the direction of the detected liquid level and is attached to the inner side of the upper surface of the shell.
In this inspection shaft information detection equipment, the attached casing thickness of horn mouth no longer than 2 mm.
In the inspection well information detection equipment, the radar sensor is a 60GHz radar sensor.
In this inspection shaft information detection equipment, check out test set still include printed circuit board, radar sensor weld on this printed circuit board, radar antenna be fixed in on the printed circuit board.
In this inspection shaft information detection equipment, the casing include upper cover and base, the junction of upper cover and base be provided with waterproof strip in order to form the inside sealed chamber of casing.
In the inspection well information detection device, the detection device is arranged at the center of the inspection well cover facing the detected liquid level surface.
Preferably, the utility model discloses an inspection shaft information detection equipment has adopted sealed casing, including upper cover and base, the junction of this upper cover and base is provided with waterproof strip, can satisfy the inside leakproofness requirement of inspection shaft information detection equipment, and inspection shaft lid terminal check out test set service environment is abominable, and waterproof dustproof grade requires highly, and the technical scheme of this application can realize waterproof dustproof, low in production cost to the advantage that service life is long.
Preferably, the utility model discloses an inspection shaft information detection equipment has adopted the millimeter wave radar, is fixed in the inspection shaft through the setting and covers to towards the millimeter wave radar of the liquid level that detects, can realize detecting out the speed that detects out the liquid that detects, direction of motion, liquid level distance, angle information etc. and the millimeter wave radar can pierce through plastics, provides the feasibility of setting up this millimeter wave radar in the seal shell.
Drawings
Fig. 1 is a schematic structural diagram of a preferred inspection well information detection device of the present application;
FIG. 2 is a schematic diagram of a preferred radar antenna of the present application;
description of the symbols: a radar sensor 1; a radar antenna 2; a radar antenna horn 201; a radar antenna mount 202; an upper cover 301; a base 302; a planar depression 303; a waterproof strip 4; a printed circuit board 5.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without any creative effort also belong to the protection scope of the present invention.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. The terms "first" and "second" are not limiting words, and are used for explanation only and understanding of the technical solution of the present invention.
The components, relative arrangements, functions, and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Also, it is apparent that the dimensions of the various parts shown in the drawings are not drawn to scale in practice for ease of description. Techniques, methods and apparatus that are known to those of ordinary skill in the relevant art have not been described in detail for the time being, but are intended to be part of the specification as appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as a limitation.
As shown in figure 1, the inspection well information detection equipment comprises a shell, a sealing cavity inside the shell and a radar device arranged in the sealing cavity.
Specifically, the present application uses the millimeter wave radar sensor 1, and the millimeter wave radar sensor 1 is disposed in a sealed plastic case. The millimeter wave radar has the characteristic of being capable of penetrating plastics, and is arranged in the sealed plastic shell, so that the radar is guaranteed not to be influenced by the environment in the inspection well when being capable of penetrating plastics to perform accurate measurement.
In the prior art, all technical schemes for measuring the distance of the liquid level inside the inspection well cover are that inspection well cover terminal detection equipment is externally connected with various inspection well liquid level detection equipment, and ultrasonic liquid level detection and infrared/laser TOF liquid level detection are partially integrated.
The two prior arts have the disadvantages that the ultrasonic inspection well liquid level detection device is exposed in the inspection well environment, the detection result is easily affected by the environment, for example, smoke, pressure or high temperature can affect the accuracy of the detection result, the detection result can be affected if the detected object is a soft object, and in addition, the ultrasonic inspection well liquid level detection device can only detect distance information; the detection result of the infrared/laser TOF liquid level detection is easily influenced by environmental factors such as smoke, gas, strong light and the like, and the measurement accuracy is also influenced by the characteristics of the target to be measured, such as the inability to accurately measure the distance information of dark/dark objects, transparent surfaces and liquid, and in addition, the infrared/laser TOF can only measure the distance information.
The millimeter wave radar has the advantage of high reliability, and the millimeter wave radar can not be influenced by external factors such as smoke, gas, pressure, high temperature and strong light to influence the measurement accuracy. The measurement accuracy of the millimeter wave radar is not influenced by the characteristics of the measured target, and the measured target can still be accurately measured due to the fact that the measured target is a dark/dark object, transparent glass, liquid and the like. In addition, the millimeter wave radar can measure speed, movement direction and angle information besides distance information.
In a preferred embodiment, the radar device comprises a radar sensor 1 and a radar antenna 2, wherein the radar antenna 2 is arranged on the radar sensor 1; the radar antenna 2 comprises a radar antenna horn 201 and a radar antenna pedestal 202 which is connected with the radar antenna horn 201 and is internally provided with the radar sensor 1; the radar antenna horn 201 is arranged above the radar sensor 1, and the horn mouth of the radar antenna horn 201 faces the detection direction of the radar sensor 1,
specifically, the inspection well information detection device of the preferred embodiment includes a radar sensor 1 and a radar antenna 2 which are arranged inside a housing. The radar sensor 1 is used for radiating and receiving electromagnetic waves and determining the detection direction of the electromagnetic waves; the main purpose of the radar antenna 2 is to better receive and transmit millimetre electromagnetic waves. In other preferred implementations, a pulse radar is further provided for sending out a pulse signal, and the radar sensor 1 is used for receiving the rebounded pulse signal; other preferred embodiments are also provided with a filter for filtering the bounced pulse signal before it is received by the radar sensor 1.
The radar antenna 2 comprises a radar antenna horn 201 and a radar antenna extension circular waveguide, and the radar sensor 1 is installed in the extension circular waveguide, so the extension circular waveguide is also called as a radar antenna pedestal 202. The radar antenna horn 201 is conical, the rear end of the radar antenna horn 201 is connected with the radar antenna pedestal 202, the opening of the radar antenna horn 201 is gradually enlarged from the connecting end of the radar antenna pedestal 202, and the radar antenna pedestal 202 is hollow and cylindrical. The radar antenna 2 of the technical scheme is of a structure symmetrical according to the central axis, and the phase center is stable.
The radar sensor 1 is installed in the radar antenna pedestal 202, and the conical radar antenna horn 201 receives electromagnetic waves, guides the electromagnetic waves to be directionally transmitted through the extending circular waveguide (the radar antenna pedestal 202), and is received by the radar sensor 1. When electromagnetic wave takes place, the electromagnetic wave that the check out test set of this application sent out transmits front end radar antenna loudspeaker 201 and then radiates away through the extension circular waveguide of rear end. The liquid level distance is actually measured by measuring the time difference between the transmitted pulse (electromagnetic wave) and the echo pulse, and the electromagnetic wave propagates at the speed of light, so that the distance can be converted into the accurate distance of the target.
In a preferred embodiment, the horn mouth of the radar antenna horn 201 is attached to the inner side of the upper surface of the shell, and the thickness of the shell attached to the horn mouth is not more than 2 mm. As shown in fig. 1, the inner side of the top of the shell attached to the bell mouth is in a step shape, the step shape forms a plane recess 303 whose top can be inner, the shell thickness of the plane recess 303 is smaller than the thickness of other positions of the top shell, preferably, the shell thickness of the plane recess 303 is smaller than 2 mm. The millimeter wave radar sensor 1 applied in the present application has the characteristic of being capable of penetrating through plastics, but the accuracy of measurement can be affected by excessively thick plastics. Based on the radar sensor 1 that the operating frequency that this application chose for use is 60GHz, the thickness of the casing of the attached department of this radar antenna 2 is less than 2mm to realize penetrating through the plastics watchcase completely, accomplish accurate measurement. Through only setting up the less casing of thickness in radar antenna 2's horn mouth department, other partial casings still keep thicker thickness, can be that the check out test set of this application has longer life under the adverse circumstances of inspection shaft.
In other preferred embodiments, the housing upper surface is not provided with the flat depressions 303, and the housing upper surface is made of plastic with a thickness of less than 2 mm.
In a preferred embodiment, as shown in fig. 1 and 2, the detection apparatus further includes a printed circuit board 5, the radar sensor 1 is soldered on the printed circuit board 5, and the radar antenna 2 is locked and fixed on the printed circuit board 5. The printed circuit board 5 is disposed inside the sealed housing.
In a preferred embodiment, the housing comprises an upper cover 301 and a base 302, and a waterproof strip 4 is arranged at the joint of the upper cover 301 and the base 302. As shown in fig. 1, the waterproof strip 4 is disposed in a groove at a connection position of the upper cover 301 and the base 302, and a protrusion structure is disposed at a corresponding position of the base 302, and the protrusion structure can extrude the waterproof strip 4 and insert into the groove to achieve sealing. Preferably, the upper cover 301 and the base 302 are fixedly connected by bolts.
The radar sensor and the radar antenna are completely designed inside the structure, external connection does not exist, and the waterproof and dustproof grade design of IP68 can be achieved.
Preferably, the radar sensor of the present application is a 60GHz low-power and high-precision radar sensor, and has the advantage of low power consumption.
In the detection equipment's of this application specific application example, radar antenna installs in inspection shaft lid check out test set's centre, and its bellmouth is vertical below in order to detect the liquid level down, and the check out test set design installs in the centre of well lid to confirm the biggest detection visual angle, and it is convenient to use this application technical scheme's check out test set installation.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although a number of exemplary embodiments of the present invention have been described, those skilled in the art will readily appreciate that many modifications may be made to the exemplary embodiments without departing from the technical features of the present invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. It is to be understood that the foregoing is illustrative of the present invention and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed embodiments, as well as other embodiments, are intended to be included within the scope of the appended claims. The invention is defined by the claims and their equivalents.
Claims (8)
1. The inspection well information detection equipment is characterized by comprising a shell, a sealing cavity inside the shell and a radar device arranged in the sealing cavity;
the detection equipment is fixed on the surface of the inspection well cover facing the detected liquid level;
the radar device comprises a radar sensor and a radar antenna, wherein the radar antenna is arranged on the radar sensor.
2. The inspection well information detection device according to claim 1, wherein the radar antenna comprises a radar antenna horn and a radar antenna mount connected to the radar antenna horn and having the radar sensor disposed therein.
3. The inspection well information detection device according to claim 2, wherein the radar antenna horn is arranged above the radar sensor; the horn mouth of the radar antenna horn faces the direction of the detected liquid level and is attached to the inner side of the upper surface of the shell.
4. The inspection well information detection device according to claim 3, wherein the thickness of the shell attached to the bell mouth is not more than 2 mm.
5. The inspection well information detection device according to claim 1, wherein the radar sensor is a 60GHz radar sensor.
6. The inspection well information detection device according to claim 1, wherein the detection device further comprises a printed circuit board, the radar sensor is soldered to the printed circuit board, and the radar antenna is fixed to the printed circuit board.
7. The inspection well information detection device according to claim 1, wherein the housing comprises an upper cover and a base, and a waterproof strip is arranged at the joint of the upper cover and the base to form a sealed cavity inside the housing.
8. The inspection well information detection device according to claim 1, wherein the detection device is arranged at the center of the inspection well cover facing the detected liquid level surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311525.7U CN217210961U (en) | 2022-02-16 | 2022-02-16 | Inspection well information detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311525.7U CN217210961U (en) | 2022-02-16 | 2022-02-16 | Inspection well information detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217210961U true CN217210961U (en) | 2022-08-16 |
Family
ID=82796015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220311525.7U Active CN217210961U (en) | 2022-02-16 | 2022-02-16 | Inspection well information detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217210961U (en) |
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2022
- 2022-02-16 CN CN202220311525.7U patent/CN217210961U/en active Active
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