CN220913660U - Visual device for liquid crystal and character wheel double dial plate comparison reading - Google Patents
Visual device for liquid crystal and character wheel double dial plate comparison reading Download PDFInfo
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- CN220913660U CN220913660U CN202322896114.6U CN202322896114U CN220913660U CN 220913660 U CN220913660 U CN 220913660U CN 202322896114 U CN202322896114 U CN 202322896114U CN 220913660 U CN220913660 U CN 220913660U
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- 230000000007 visual effect Effects 0.000 title claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims 2
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- 238000013461 design Methods 0.000 abstract description 3
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- 238000012795 verification Methods 0.000 description 5
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- 238000004458 analytical method Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a visual device for comparing readings of a liquid crystal and a character wheel double dial in the technical field of machine visual equipment, which comprises a visual end industrial personal computer, a management end industrial personal computer, an industrial camera and a camera bracket; the visual industrial personal computer and the management end industrial personal computer transmit and receive data through serial communication; the tablet personal computer is used for remotely monitoring the desktop of the industrial personal computer; the industrial camera is used for collecting images aiming at the dial plate and transmitting the images to the upper computer software of the visual industrial personal computer for accurate reading identification; the camera support is used for installing an industrial camera and realizing free movement of the spatial position of the industrial camera; the communication connection is electrically connected, the utility model combines mechanical design with precise vision technology, establishes a complete machine vision signal acquisition system and completes automatic real-time acquisition of double dial readings of liquid crystal and character wheels.
Description
Technical Field
The utility model relates to the technical field of machine vision equipment, in particular to a machine vision device.
Background
The metering institute performs verification and calibration of the gas flow meter and the gas flow pump to confirm whether the gas flow meter and the gas flow pump are qualified. This work is intended to compare the error between the meter's dial reading and its pulse or memory reading. And detecting whether the error between the dial reading and the pulse or the memory reading of the flowmeter is within a specified range [1]. For the digital display direct-reading flowmeter, in the metering and calibrating process, the instantaneous flow or the accumulated flow of the instrument can be collected only through the vision of a detector, and the work such as recording and error analysis is complicated in the whole process, the efficiency is low, and the collection of the instrument indication value in the detecting process is completely dependent on the vision of the detector, so that the accuracy of the direct-reading instrument calibrating result is greatly influenced by human factors, and the uncertainty brought by the accuracy is an uncontrollable variable. It is clear that this manual detection means has not been able to meet the current metering and production requirements [2]. Most of the existing verification methods adopt manual methods to read dial readings, and the degree of automation is low. The gas flow dial verification mechanism based on machine vision is designed, the error of the flow meter representation value is verified according to the verification rule requirement, the verification efficiency is improved, the labor intensity of operators is reduced, and a manager can conveniently conduct statistics and analysis of data in the background.
[1] Zhang Jian, zhao Yuming, chen Dequan. Automatic identification system for digital readings of the dial of a time-sharing ammeter [ J ]. Computer engineering, 2005 (05): 178-180.
[2] Lin Huanhuan, liu Yizai, hu Houlin, et al digital direct-reading flowmeter detection methods based on image vision techniques research [ J ]. Instrument standardization and metering, 2022 (02): 18-21.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model provides a visual device for comparing readings of a liquid crystal and a character wheel double dial, combines mechanical design with precise visual technology, establishes a complete machine visual signal acquisition system and completes automatic real-time acquisition of the readings of the liquid crystal and the character wheel double dial.
The purpose of the utility model is realized in the following way: the utility model provides a vision device of two dial plates contrast readings of liquid crystal and character wheel, includes a vision end industrial computer, a management end industrial computer, two industry cameras, a camera support and a panel computer;
the visual industrial personal computer and the management end industrial personal computer transmit and receive data through serial communication;
the tablet personal computer is used for remotely monitoring the desktop of the industrial personal computer;
The two industrial cameras are used for collecting images aiming at the dial plate and transmitting the images to upper computer software of the visual industrial personal computer for accurate reading identification;
The camera support is used for installing an industrial camera and realizing free movement of the spatial position of the industrial camera;
the communication connections are all electrically connected.
As the preferable technical scheme of the vision device for comparing the readings of the liquid crystal and the double dial plates of the character wheels, the camera support comprises a movable base, a supporting upright post is arranged on the base, a joint support is arranged on the supporting upright post, and the industrial camera is arranged on the joint support.
As the preferable technical scheme of the vision device for comparing the readings of the double dial plates of the liquid crystal and the character wheel, the joint support comprises a first connecting rod and a second connecting rod, wherein one end of the first connecting rod is hinged on a supporting upright post, the other end of the first connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the third connecting rod, and the industrial camera is arranged at the other end of the third connecting rod.
As the preferable technical scheme of the vision device for comparing the readings of the liquid crystal and the double dial plates of the character wheel, the vision device further comprises annular light sources, wherein the two annular light sources are also arranged at the other end of the third connecting rod and are positioned at the front end of the industrial camera.
As the preferable technical scheme of the vision device for comparing the readings of the liquid crystal and the double dial plates of the character wheels, two joint brackets are arranged, and two corresponding industrial cameras and two corresponding annular light sources are also arranged.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, mechanical design and precise visual technology are combined, remote precise and stable acquisition of signals of the flow checking device is realized, two industrial cameras arranged on a movable and adjustable camera support are utilized to acquire device dial reading images in real time, and finally identification data are stored and transmitted to a remote management center through serial port communication, so that management staff can count and analyze the data in the background, the working efficiency is improved, and the identification rate is difficult to guarantee.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the connection of the present utility model.
Fig. 2 is a schematic view of a camera stand in embodiment 1.
Fig. 3 is a schematic view of a camera stand in embodiment 2.
The device comprises a 100 industrial camera, a 200 camera support, a 201 base, a 202 support upright post, a 203 joint support, a 2031 first connecting rod, a 2032 second connecting rod, a 2033 third connecting rod, a 2034 connecting piece and a 300 annular light source.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
1-2, A vision device for comparing readings of a liquid crystal and a character wheel double dial comprises a vision end industrial personal computer, a management end industrial personal computer, an industrial camera 100 and a camera bracket 200;
the visual industrial personal computer and the management end industrial personal computer transmit and receive data through serial communication;
the tablet personal computer is used for remotely monitoring the desktop of the industrial personal computer;
the industrial camera 100 is used for collecting images aiming at the dial plate and transmitting the images to the upper computer software of the visual industrial personal computer for accurate reading identification;
The camera support 200 is used for installing the industrial camera 100 and realizing free movement of the spatial position of the industrial camera 100;
the communication connections are all electrically connected.
The electric connection can be in a wire connection mode or a wireless communication connection mode, which belongs to the conventional communication connection mode and is not creative, so that the visual industrial personal computer and the management end industrial personal computer are not repeated, and are also conventional industrial personal computers capable of being purchased directly, wherein the tablet personal computer and the industrial camera 100 are in communication connection with the visual industrial personal computer, and the visual industrial personal computer is in communication connection with the management end industrial personal computer.
Further, the camera stand 200 includes a movable base 201, a support column 202 is mounted on the base 201, an articulation stand 203 is mounted on the support column 202, and the industrial camera 100 is mounted on the articulation stand 203.
Specifically, the base 201 is a conventional plate, and the knuckle mount 203 is used to realize movement of the industrial camera 100 in XYZ directions.
Further, the joint bracket 203 includes a first link 2031, a second link 2032, and a third link 2033, wherein one end of the first link 2031 is hinged on the support column 202, the other end of the first link 2031 is hinged with one end of the second link 2032, the other end of the second link 2032 is hinged with one end of the third link 2033, the industrial camera 100 is mounted at the other end of the third link 2033, the joint bracket further includes an annular light source 300, and the two annular light sources 300 are also mounted at the other end of the third link 2033 and are located at the front end of the industrial camera 100.
Specifically, the first link 2031 and the second link 2032 are all in a circular tube structure, the mutual hinging manner is realized through a connecting piece 2034, two circular holes with vertical phases are formed in the connecting piece 2034, the circular holes are sleeved on the first link 2031, the second link, the third link 2033 and the support upright 202, and locking pieces are matched to lock after angle adjustment (not shown in the figure, the locking manner is conventional technology).
Example 2
This embodiment differs from embodiment 1 in that, as shown in fig. 3, two joint holders 203 are provided, and two corresponding industrial cameras 100 and ring-shaped light sources 300 are also provided.
The working principle of the utility model is as follows.
S1) installing and adjusting a camera bracket 200 to enable two industrial cameras 100 to be respectively aligned with a dial of a character wheel meter and a dial of a liquid crystal meter on a gas flow checking device, adjusting the focal length and exposure of the cameras, and ensuring that the dial is imaged clearly; the base 201 of the camera support 200 can be moved to any position on the ground with the radius of 10m around the industrial personal computer, and the supporting upright post 202 is fixedly arranged on the base 201 and is about 1.5m high; the top of the support column 202 can be optionally provided with a tablet personal computer for remote monitoring of an industrial personal computer interface.
S2) selecting a model on the upper computer, opening the serial port communication connection management end, and waiting for the management end to issue a start signal.
S3) opening an air valve of the gas flow checking device, enabling quantitative gas to pass through the two meters simultaneously, sending a starting signal by the management end, and measuring dial readings in real time through the two industrial control cameras.
S4) the management end sends an end signal, and errors of the liquid crystal table and the character wheel table are measured and compared.
The above description of the embodiments is only for aiding in the understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (5)
1. The visual device for the liquid crystal and character wheel double dial contrast reading is characterized by comprising a visual end industrial personal computer, a management end industrial personal computer, a tablet personal computer, an industrial camera and a camera bracket;
the visual end industrial personal computer and the management end industrial personal computer transmit and receive data through serial communication;
the tablet personal computer is used for remotely monitoring the desktop of the industrial personal computer;
The industrial camera is used for collecting images aiming at the dial plate and transmitting the images to upper computer software of the visual end industrial personal computer for accurate reading identification;
The camera support is used for installing an industrial camera and realizing free movement of the spatial position of the industrial camera;
the communication connections are all electrically connected.
2. The vision apparatus for comparing readings from a liquid crystal display with a print wheel dual dial as set forth in claim 1, wherein said camera mount comprises a movable base having a support post mounted thereon, said support post having an articulating bracket mounted thereon, said industrial camera being mounted on said articulating bracket.
3. The vision device for comparing readings of a liquid crystal display with a double dial plate of a character wheel according to claim 2, wherein the joint support comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged on the supporting upright, the other end of the first connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the third connecting rod, and the industrial camera is arranged at the other end of the third connecting rod.
4. A visual device for comparing readings from a liquid crystal and a character wheel dual dial as set forth in claim 3, further comprising an annular light source, both annular light sources also mounted on the other end of the third link and located at the front end of the industrial camera.
5. The visual device for comparing readings of a liquid crystal and a character wheel double dial plate according to claim 4, wherein two joint brackets are provided, and two corresponding industrial cameras and annular light sources are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322896114.6U CN220913660U (en) | 2023-10-27 | 2023-10-27 | Visual device for liquid crystal and character wheel double dial plate comparison reading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322896114.6U CN220913660U (en) | 2023-10-27 | 2023-10-27 | Visual device for liquid crystal and character wheel double dial plate comparison reading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220913660U true CN220913660U (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322896114.6U Active CN220913660U (en) | 2023-10-27 | 2023-10-27 | Visual device for liquid crystal and character wheel double dial plate comparison reading |
Country Status (1)
| Country | Link |
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| CN (1) | CN220913660U (en) |
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- 2023-10-27 CN CN202322896114.6U patent/CN220913660U/en active Active
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