CN106646678B - Equipment capable of diagnosing visibility sensor fault and detection method - Google Patents
Equipment capable of diagnosing visibility sensor fault and detection method Download PDFInfo
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- CN106646678B CN106646678B CN201611245269.1A CN201611245269A CN106646678B CN 106646678 B CN106646678 B CN 106646678B CN 201611245269 A CN201611245269 A CN 201611245269A CN 106646678 B CN106646678 B CN 106646678B
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- visibility sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/18—Testing or calibrating meteorological apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
Abstract
The invention relates to a meteorological measuring instrument, in particular to equipment and a detection method capable of diagnosing visibility sensor faults. The equipment mainly aims at diagnosing a visibility sensor and comprises a limit switch, a stepping motor, a chassis, a support column, an upright post, a cross arm, a fixing plate, a control box, a detection device, a motor bracket and a fixing foot. The detection device is driven to rotate by the stepping motor, so that the detection device sequentially covers a laser detection area of the detected visibility sensor, and the detected visibility sensor uploads the captured meteorological visibility state data to the upper computer software. The visibility difference values of different detection devices are compared with the standard difference value by upper computer software, and whether the detected visibility sensor is in fault or not is diagnosed by judging the detected data and the difference value. The equipment has the advantages of high automation degree, convenience in use and maintenance and the like.
Description
Technical Field
The invention relates to a meteorological measuring instrument, in particular to equipment and a detection method capable of diagnosing visibility sensor faults.
Background
Visibility sensors are highly sensitive and critical meteorological instruments that typically operate for a period of time before they detect their accuracy. The conventional method is to send the visibility sensor to a national or first-class-provincial metering unit, and to use the visibility simulation test, which wastes time, manpower and financial resources. Generally, the visibility sensor is detected by manually comparing a receiving lens of the visibility sensor with a standard visibility sensor to check the performance of the visibility sensor. Therefore, the conventional method does not consume much time and labor.
Disclosure of Invention
The invention aims to provide equipment and a detection method capable of diagnosing visibility sensor faults. And comparing the different visibility difference values with the standard difference values by the upper computer software, and diagnosing whether the detected visibility sensor has faults or not by judging the detected data and the difference values.
The technical scheme adopted by the invention is as follows: the utility model provides an equipment that can diagnose visibility sensor trouble, includes limit switch, step motor, its characterized in that: the device also comprises a chassis, support columns, upright columns, cross arms, knurled screws, a fixing plate, a control box, a detection device, a motor bracket and fixing legs;
the detection device comprises a turntable, a spectacle frame transverse arm, a circular detection lens A, a circular detection lens B, a lens fixing seat A, a lens fixing seat B and a limiting transverse arm;
the horizontal arm of the spectacle frame is fixed in a strip-shaped groove on one surface of the rotary table, the limiting horizontal arm is fixed on the rotary table, the lens fixing seat A is fixed on one side surface of the horizontal arm of the spectacle frame, the lens fixing seat B is fixed on the other side surface of the horizontal arm of the spectacle frame, the circular detection lens A is embedded in an arc-shaped groove A of the lens fixing seat A, and the circular detection lens B is embedded in an arc-shaped groove B of the lens fixing seat B;
the chassis is provided with a limiting groove, a control box and four support columns are respectively fixed below the chassis, two fixing feet and an upright post are respectively fixed on the chassis, a cross arm is fixed on the upright post, a fixing plate is fixed on the cross arm, and two knurled screws are respectively arranged in two strip holes on the fixing plate;
the bottom of motor support is fixed on two fixed feet, and step motor and limit switch are fixed respectively to the upper end of motor support, detection device sets up and is connected with step motor in the upper end of motor support, step motor is connected with the control box.
An apparatus detection method capable of diagnosing a visibility sensor failure, characterized in that: the steps are as follows,
the steps for diagnosing the faults of the visibility sensor with the square control box at the bottom are as follows:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device to rotate by a stepping motor, triggering a limit switch when a limit cross arm rotates to an induction zone of the limit switch, stopping the rotation of the stepping motor, and defaulting the position at the moment to the initial position of the detection device;
then, a visibility sensor with a square control box at the bottom is placed in a limiting groove of a chassis, the control box controls a stepping motor to drive a detection device to rotate clockwise by 90 degrees, so that a cross arm of a frame is positioned at a horizontal position, a circular detection lens A is positioned in a detection area of the visibility sensor with the square control box, a measured value X is captured by an upper computer through the sensor at the moment, the stepping motor drives the detection device to rotate clockwise by 180 degrees, the cross arm of the frame is positioned at the horizontal position again, a circular detection lens B is positioned in the detection area of the visibility sensor with the square control box, a measured value Y is captured by the upper computer through the visibility sensor with the square control box at the moment, the difference between the X value and the Y value is calculated by the upper computer, the obtained value is compared with a standard difference value, and whether the visibility sensor with the square control box at the bottom has a fault is diagnosed through the judgment of the measured data and the difference value, finally, the stepping motor drives the detection device to rotate by 90 degrees clockwise, the limit cross arm enters the induction area of the limit switch again, and then the detection device stops working and returns to the initial position;
the steps for diagnosing the fault of the visibility sensor with the hoop at the bottom are as follows:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device to rotate by a stepping motor, triggering a limit switch when a limit cross arm rotates to an induction zone of the limit switch, stopping the rotation of the stepping motor, and defaulting the position at the moment to the initial position of the detection device;
then, the visibility sensor with the hoop is placed on the horizontal arm and is fixed by 2 knurled screws, the control box controls the stepping motor to drive the detection device to rotate 90 degrees clockwise, so that the horizontal arm of the spectacle frame is in a horizontal position, the circular detection lens A is positioned in a detection area of the visibility sensor with the hoop, at the moment, the upper computer captures a measured value D through the sensor, the stepping motor drives the detection device to rotate 180 degrees clockwise, the horizontal arm of the spectacle frame is in a horizontal position again, the circular detection lens B is positioned in a detection area of the visibility sensor with the hoop, at the moment, the upper computer captures a measured value E through the sensor, the upper computer carries out difference calculation on the D value and the E value, the obtained value is compared with a standard difference value, and whether the visibility sensor with the hoop is in fault or not is diagnosed through the judgment of the measured data and the difference value,
and finally, the stepping motor drives the detection device to rotate by 90 degrees clockwise, the limiting cross arm enters an induction area of the limiting switch again, and the detection device stops working and returns to the initial position.
The beneficial effects produced by the invention are as follows: by using the detection device, effective diagnosis of the visibility sensor faults is realized, the detection lens A and the detection lens B are enabled to cover the laser detection area of the detected visibility sensor in sequence by controlling the stepping motor, the detected visibility sensor uploads the captured meteorological visibility state data to the upper computer software, the visibility difference values of different optical lens assemblies are compared with the standard difference values by the upper computer software, and the detected visibility sensor is diagnosed to be in fault or not by judging the detected data and the difference values. The device has the characteristics of simple structure, small volume, high measurement precision, good field use effect, low measurement cost and the like.
The equipment also has the advantages of high automation degree, convenient use and maintenance and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the motor bracket of the present invention;
FIG. 3 is an exploded view of the detecting device of the present invention;
FIG. 4 is an exploded view of the cross arm, retaining plate, knurled screw of the present invention;
FIG. 5 is a schematic structural diagram of a visibility sensor with a hoop for diagnosis according to the present invention;
FIG. 6 is a schematic diagram of a visibility sensor with a square control box for diagnostics in accordance with the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 4, the device capable of diagnosing a visibility sensor fault includes a limit switch 10, a stepping motor 9, a chassis 1, a support column 2, a column 3, a cross arm 4, a knurled screw 5, a holding plate 6, a control box 7, a detection device 8, a motor support 11, and a fixing foot 12.
The motor support 11 is sickle-shaped and made of metal materials, and a motor hole 11-1 and a limit switch hole 11-2 are respectively arranged on the motor support 11.
The detection device 8 comprises a rotary table 8-1, a horizontal arm 8-2 of the spectacle frame, a circular detection lens A8-3, a circular detection lens B8-4, a lens fixing seat A8-5, a lens fixing seat B8-6 and a limiting horizontal arm 8-7.
The horizontal arm 8-2 of the spectacle frame is screwed in the strip-shaped groove 8-1-1 on one side of the rotary table 8-1, the limiting horizontal arm 8-7 is screwed on the rotary table 8-1, the lens fixing seat A8-5 is screwed on one side of the horizontal arm 8-2 of the spectacle frame, the lens fixing seat B8-6 is screwed on the other side of the horizontal arm 8-2 of the spectacle frame, the circular detection lens A8-3 is embedded in the arc-shaped groove A8-5-1 of the lens fixing seat A8-5, and the circular detection lens B8-4 is embedded in the arc-shaped groove B8-6-1 of the lens fixing seat B8-6.
The base plate 1 is provided with a limiting groove 1-1, a fixed control box 7 and four supporting columns 2 are respectively screwed below the base plate 1, two fixed legs 12 and an upright post 3 are respectively fixed on the base plate 1 through bolts, a cross arm 4 is screwed on the upright post 3, a holding plate 6 is screwed on the cross arm 4, and two knurled screws 5 are respectively arranged in two strip holes 6-1 on the holding plate 6.
The bottom end of a motor support 11 is fixed between two fixing feet 12 through bolts, a stepping motor 9 and a limit switch 10 are respectively fixed corresponding to a motor hole 11-1 and a limit switch hole 11-2 on one surface of the upper end of the motor support 11, a shaft of the stepping motor 9 penetrates through the motor hole 11-1, a detection device 8 is arranged on the other surface of the upper end of the motor support 11, a rotary disc 8-1 is connected with the shaft of the stepping motor 9, and the stepping motor 9 is connected with a control box 7 through a lead.
The circle centers of the circular detection lens A8-3 and the circular detection lens B8-4 on the detection device 8 are on the same straight line.
The circular detection lens A8-3 is a 220grit optical lens, and the circular detection lens B8-4 is a combined lens of the 220grit optical lens and a 50% extinction lens.
Referring to fig. 5, a method of device detection capable of diagnosing visibility sensor failures,
the steps for diagnosing the fault of the visibility sensor 13 with the square control box at the bottom are as follows:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device 8 to rotate by a stepping motor 9, triggering the limit switch 10 when a limit cross arm 8-7 rotates to an induction zone of the limit switch 10, and stopping the rotation of the stepping motor 9, wherein the position at the moment is defaulted as the initial position of the detection device;
then, a visibility sensor 13 with a square control box at the bottom is placed in a limiting groove 1-1 of a chassis 1, a control box 7 controls a stepping motor 9 to drive a detection device 8 to rotate 90 degrees clockwise, so that a cross arm 8-2 of a frame is positioned at a horizontal position, a circular detection lens A8-3 is positioned in a detection area of the visibility sensor 13 with the square control box, at the moment, an upper computer captures a measurement value through the sensor, the detection device 8 is assumed to be an X value, the stepping motor 9 drives the detection device 8 to rotate 180 degrees clockwise, the cross arm 8-2 is positioned at the horizontal position again, a circular detection lens B8-4 is positioned in the detection area of the visibility sensor 13 with the square control box, at the moment, the upper computer captures a measurement value through the visibility sensor 13 with the square control box, the upper computer calculates the difference between the X value and the Y value on the assumption that the Y value is the visibility sensor 13 with the square control box, and comparing the obtained value with a standard difference value, diagnosing whether a visibility sensor (13) with a square control box at the bottom has a fault or not through the judgment of the measured data and the difference value, and finally, driving the detection device 8 to rotate 90 degrees clockwise by the stepping motor 9, enabling the limiting cross arm 8-7 to enter an induction area of the limiting switch 10 again, and further stopping the work of the detection device 8 and returning to the initial position.
The steps for diagnosing the visibility sensor 14 with the hoop in case of failure are as follows:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device 8 to rotate by a stepping motor 9, triggering the limit switch 10 when a limit cross arm 8-7 rotates to an induction zone of the limit switch 10, stopping the rotation of the stepping motor, and defaulting the position at the moment to the initial position of the detection device;
then, the visibility sensor 14 with the hoop is placed on the cross arm 4 and is fixed by 2 knurled screws 5, the control box 7 controls the stepping motor 9 to drive the detection device 8 to rotate clockwise by 90 degrees, so that the cross arm 8-2 of the frame is in the horizontal position, the circular detection lens A8-3 is in the detection area of the visibility sensor 14 with the hoop, at the moment, the upper computer captures a measurement value by the sensor, the measurement value is assumed to be a D value, the stepping motor 9 drives the detection device 8 to rotate clockwise by 180 degrees, the cross arm 8-2 is in the horizontal position again, the circular detection lens B8-4 is in the detection area of the visibility sensor 14 with the hoop, at the moment, the upper computer captures a measurement value by the sensor, the E value is assumed, the difference between the D value and the E value is calculated by the upper computer, and the obtained value is compared with a standard difference, and finally, the stepping motor 9 drives the detection device 8 to rotate 90 degrees clockwise, the limiting cross arm 8-7 enters the induction area of the limiting switch 10 again, and the detection device stops working and returns to the initial position.
Claims (5)
1. An apparatus capable of diagnosing a visibility sensor fault, comprising a limit switch (10), a stepping motor (9), characterized in that: the device also comprises a chassis (1), a support column (2), an upright column (3), a cross arm (4), knurled screws (5), a fixing plate (6), a control box (7), a detection device (8), a motor bracket (11) and fixing feet (12);
the detection device (8) comprises a turntable (8-1), a horizontal arm (8-2) of the spectacle frame, a circular detection lens A (8-3), a circular detection lens B (8-4), a lens fixing seat A (8-5), a lens fixing seat B (8-6) and a limiting horizontal arm (8-7);
the horizontal arm (8-2) of the spectacle frame is fixed in a strip-shaped groove (8-1-1) on one surface of a rotary table (8-1), the limiting horizontal arm (8-7) is fixed on the rotary table (8-1), the lens fixing seat A (8-5) is fixed on one side surface of the horizontal arm (8-2) of the spectacle frame, the lens fixing seat B (8-6) is fixed on the other side surface of the horizontal arm (8-2) of the spectacle frame, the circular detection lens A (8-3) is embedded in an arc-shaped groove A (8-5-1) of the lens fixing seat A (8-5), and the circular detection lens B (8-4) is embedded in an arc-shaped groove B (8-6-1) of the lens fixing seat B (8-6);
a limiting groove (1-1) is formed in the chassis (1), a control box (7) and four supporting columns (2) are fixed to the lower surface of the chassis (1) respectively, two fixing feet (12) and an upright post (3) are fixed to the upper surface of the chassis (1) respectively, a cross arm (4) is fixed to the upright post (3), a fixing plate (6) is fixed to the cross arm (4), and knurled screws (5) are arranged in two strip holes (6-1) in the fixing plate (6) respectively;
the bottom mounting of motor support (11) is on two fixed feet (12), and step motor (9) and limit switch (10) are fixed respectively to the upper end of motor support (11), detection device (8) set up and are connected with step motor (9) in the upper end of motor support (11), step motor (9) are connected with control box (7).
2. The device capable of diagnosing visibility sensor faults as claimed in claim 1, wherein: the motor support (11) is sickle-shaped and made of metal materials, and a motor hole (11-1) and a limit switch hole (11-2) are respectively formed in the motor support (11).
3. The device capable of diagnosing visibility sensor faults as claimed in claim 1, wherein: the circle centers of the circular detection lens A (8-3) and the circular detection lens B (8-4) on the detection device (8) are on the same straight line.
4. The device capable of diagnosing visibility sensor faults as claimed in claim 1, wherein: the circular detection lens A (8-3) is a 220grit optical lens, and the circular detection lens B (8-4) is a combined lens of a 220grit optical lens and a 50% extinction lens.
5. A method of detecting equipment capable of diagnosing a visibility sensor malfunction using the device of claim 1, characterized by: the steps are as follows,
the steps for diagnosing the fault of the visibility sensor (13) with the square control box at the bottom are as follows:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device (8) to rotate by a stepping motor (9), triggering a limit switch (10) when a limit cross arm (8-7) rotates to an induction zone of the limit switch (10), stopping the stepping motor (9) from rotating, and defaulting the position at the moment to be the initial position of the detection device (8);
then, a visibility sensor (13) with a square control box at the bottom is placed in a limiting groove (1-1) of a chassis (1), a control box (7) controls a stepping motor (9) to drive a detection device (8) to rotate 90 degrees clockwise, so that a cross arm (8-2) of a frame is in a horizontal position, a circular detection lens A (8-3) is in a detection area of the visibility sensor (13) with the square control box, a measured value X is captured by an upper computer at the moment, the stepping motor (9) drives the detection device (8) to rotate 180 degrees clockwise, the cross arm (8-2) of the frame is in the horizontal position again, a circular detection lens B (8-4) is in the detection area of the visibility sensor (13) with the square control box, and the upper computer captures a measured value Y by the visibility sensor (13) with the square control box at the moment, the upper computer carries out difference value calculation on the X value and the Y value, the obtained value is compared with a standard difference value, whether a visibility sensor (13) with a square control box at the bottom is in fault is diagnosed through the judgment of the measured data and the difference value, finally, the stepping motor (9) drives the detection device (8) to rotate 90 degrees clockwise, the limiting cross arm (8-7) enters an induction area of the limiting switch (10) again, and the detection device (8) stops working and returns to the initial position;
the method for diagnosing the fault of the visibility sensor (14) with the hoop at the bottom comprises the following steps:
firstly, calibrating an initial position of equipment, electrifying the equipment, driving a detection device (8) to rotate by a stepping motor (9), triggering a limit switch (10) when a limit cross arm (8-7) rotates to an induction zone of the limit switch (10), stopping the rotation of the stepping motor, and defaulting the position at the moment to the initial position of the detection device;
then, a visibility sensor (14) with a hoop is placed on a transverse arm (4) and is fixed by 2 knurled screws (5), a control box (7) controls a stepping motor (9) to drive a detection device (8) to rotate 90 degrees clockwise, so that the transverse arm (8-2) of the spectacle frame is in a horizontal position, a circular detection lens A (8-3) is in a detection area of the visibility sensor (14) with the hoop, a measured value D is captured by an upper computer through the sensor at the moment, the detection device (8) is driven by the stepping motor (9) to rotate 180 degrees clockwise, the transverse arm (8-2) of the spectacle frame is in a horizontal position again, a circular detection lens B (8-4) is in a detection area of the visibility sensor (14) with the hoop, a measured value E is captured by the upper computer at the moment, the D value and the E value are subjected to difference calculation by the upper computer, comparing the obtained value with the standard difference value, diagnosing whether the visibility sensor (14) with the hoop has faults or not through the judgment of the measured data and the difference value,
and finally, the stepping motor (9) drives the detection device (8) to rotate 90 degrees clockwise, the limiting cross arm (8-7) enters the induction area of the limiting switch (10) again, and the detection device stops working and returns to the initial position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611245269.1A CN106646678B (en) | 2016-12-29 | 2016-12-29 | Equipment capable of diagnosing visibility sensor fault and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611245269.1A CN106646678B (en) | 2016-12-29 | 2016-12-29 | Equipment capable of diagnosing visibility sensor fault and detection method |
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| CN106646678A CN106646678A (en) | 2017-05-10 |
| CN106646678B true CN106646678B (en) | 2022-06-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373367A (en) * | 1992-10-21 | 1994-12-13 | Qualimetrics, Inc. | Multiple angle and redundant visibility sensor |
| CN103267873B (en) * | 2013-05-31 | 2015-03-25 | 山东省科学院海洋仪器仪表研究所 | Fault detecting system and method for propeller type anemometry sensor |
| CN104237977B (en) * | 2014-08-18 | 2016-09-14 | 中国气象局气象探测中心 | A kind of automatic weather station fault processing system |
| CN105005102A (en) * | 2015-08-03 | 2015-10-28 | 中环天仪（天津）气象仪器有限公司 | Maintenance platform for testing and diagnosis meteorological observation equipment and method thereof |
| CN106154356A (en) * | 2016-08-11 | 2016-11-23 | 范雯杰 | The online fault detection system of automatic weather station and detection method |
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