CN117664817A - Workshop dust concentration detecting system - Google Patents
Workshop dust concentration detecting system Download PDFInfo
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- CN117664817A CN117664817A CN202410150803.9A CN202410150803A CN117664817A CN 117664817 A CN117664817 A CN 117664817A CN 202410150803 A CN202410150803 A CN 202410150803A CN 117664817 A CN117664817 A CN 117664817A
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- 239000000428 dust Substances 0.000 title claims abstract description 189
- 238000001514 detection method Methods 0.000 claims abstract description 83
- 238000005070 sampling Methods 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000004904 shortening Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 description 15
- 238000005096 rolling process Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
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- 239000000843 powder Substances 0.000 description 2
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- 229920001971 elastomer Polymers 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
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- B62D63/02—Motor vehicles
- B62D63/04—Component parts or accessories
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The invention relates to the technical field of dust detection, in particular to a workshop dust concentration detection system, which comprises: a body; the mobile module is used for adjusting the dust concentration detection position in the workshop; the detection module is respectively connected with the moving module and the conveying module and comprises a dust concentration detector which is arranged below the position adjusting unit and used for detecting the concentration of air dust in a workshop; the monitoring module is used for monitoring the sampling characteristic parameters; the control module is respectively connected with the body, the moving module, the detection module and the monitoring module and is used for determining the running speed of the body according to the variance of the dust concentration of a workshop, or determining the corresponding running mode of the sampling unit according to the variance of the dust concentration of the workshop and the dust thickness of the inner wall of the horizontal air inlet pipeline. The invention realizes the improvement of the stability and the accuracy of dust concentration detection.
Description
Technical Field
The invention relates to the technical field of dust detection, in particular to a workshop dust concentration detection system.
Background
In the prior art, in production and work, workshop dust is a natural enemy of human health, is one of main reasons for inducing various diseases, and not only seriously damages the physical health of workers, so that the workers suffer from pneumoconiosis, but also explodes when the dust concentration is too high. Therefore, the dust content in the workshop is effectively monitored in real time, so that the dust concentration condition can be better mastered, the effective dust removal and dust fall can be carried out, and the method has important significance for the physical health of workers and the safety production of the workshop.
Chinese patent publication No.: CN111948105a discloses a mill dust detection system and method, the system comprising: an environment dust detector, a rolling mill dust detector, an anemometer, a steel passing detector, a detection controller and a data processing workstation; the environment dust detector is arranged beside a control room of the steel rolling workshop and is used for measuring the environment dust concentration of the workshop; the rolling mill dust detector comprises an operation side dust detector and a transmission side dust detector, wherein the operation side dust detector is arranged on the operation side of the top of the rolling mill powder frame, the transmission side dust detector is arranged on the transmission side of the top of the rolling mill powder frame, and the dust concentration of a rolling mill area is measured through the operation side dust detector and the transmission side dust detector; the anemometer comprises an operation side anemometer and a transmission side anemometer, wherein the operation side anemometer is arranged beside the operation side dust detector at the top operation side of the rolling mill end stand, the transmission side anemometer is arranged beside the transmission side dust detector at the top transmission side of the rolling mill end stand, and the top wind speed of the rolling mill is measured through the operation side anemometer and the transmission side anemometer. Therefore, the rolling mill dust detection system and the rolling mill dust detection method have the problems that the stability of laser generation is insufficient and the friction of the inner wall of the horizontal air inlet pipeline is overlarge due to electromagnetic interference generated by large equipment in a workshop to a detection instrument, so that partial scratches or pits appear, and the horizontal air inlet pipeline absorbs partial dust, so that the stability and the accuracy of dust concentration detection are reduced.
Disclosure of Invention
Therefore, the invention provides a workshop dust concentration detection system which is used for solving the problems that in the prior art, the stability of laser generation is insufficient and the friction of the inner wall of a horizontal air inlet pipeline is overlarge due to electromagnetic interference of large equipment in a workshop to a detection instrument, so that partial scratches or pits appear, and the stability and the accuracy of dust concentration detection are reduced due to the fact that the horizontal air inlet pipeline absorbs partial dust.
In order to achieve the above object, the present invention provides a workshop dust concentration detection system, comprising: a body; the mobile module is used for adjusting the dust concentration detection position in the workshop and comprises a position adjusting unit for adjusting the horizontal position of the air inlet point; the detection module is connected with the mobile module and comprises a dust concentration detector and a sampling unit, wherein the dust concentration detector is arranged below the position adjustment unit and used for detecting the concentration of air dust in a workshop, and the sampling unit is connected with the position adjustment unit and used for sampling the air in the workshop, and the sampling unit comprises a horizontal air inlet pipeline used for conveying the air in the workshop; the monitoring module is respectively connected with the body and the detection module and is used for monitoring sampling characteristic parameters, wherein the sampling characteristic parameters comprise dust thickness of the inner wall of the horizontal air inlet pipeline, internal humidity of the horizontal air inlet pipeline and vibration intensity of the body; the control module is respectively connected with the body, the moving module, the detection module and the monitoring module and is used for determining the running speed of the body according to the variance of the dust concentration of a workshop, or determining the corresponding running mode of the sampling unit according to the variance of the dust concentration of the workshop and the dust thickness of the inner wall of the horizontal air inlet pipeline, determining the first working mode of the position adjusting unit according to the dust thickness of the inner wall of the horizontal air inlet pipeline and the actual humidity inside the horizontal air inlet pipeline, and determining the second working mode of the position adjusting unit according to the vibration intensity of the body, wherein the telescopic length of the horizontal air inlet pipeline in the first working mode is smaller than that of the horizontal air inlet pipeline in the second working mode.
Further, the sampling unit further includes:
an air inlet connected to the horizontal air intake duct for introducing air in the workshop into the horizontal air intake duct;
the fan is connected with the horizontal air inlet pipeline and used for providing air inlet power;
and the vertical air inlet pipeline is connected with the horizontal air inlet pipeline and is used for conveying air in the workshop to the body.
Further, the position adjustment unit includes:
the electric telescopic rod is connected with the vertical air inlet pipeline and is used for adjusting the telescopic length of the horizontal air inlet pipeline by adjusting the telescopic length of the electric telescopic rod;
and the bolt is connected with the electric telescopic rod and used for fixing the vertical distance between the electric telescopic rod and the horizontal air inlet pipeline.
Further, the monitoring module includes:
the ultrasonic sensor is connected with the inner wall of the horizontal air inlet pipeline and is used for detecting the dust thickness of the inner wall of the horizontal air inlet pipeline;
the humidity sensor is arranged on the inner wall of the horizontal air inlet pipeline and used for detecting the humidity in the horizontal air inlet pipeline;
and the vibration sensor is arranged below the horizontal air inlet pipeline and is used for detecting the vibration intensity of the body.
Further, the control module controls the dust concentration detector to detect the concentration of the workshop dust in unit time for a plurality of times, calculates the variance of the concentration of the workshop dust,
if the variance of the dust concentration in the workshop is larger than a preset second variance, the control module determines the running speed of the body;
the running speed of the body is determined by the difference between the variance of the dust concentration of the workshop and the preset second variance.
Further, if the variance of the dust concentration in the workshop is larger than the preset first variance and smaller than or equal to the preset second variance, the control module controls the ultrasonic sensor to detect the dust thickness of the inner wall of the horizontal air inlet pipeline,
if the dust thickness of the inner wall of the horizontal air inlet pipeline is larger than the preset first thickness and smaller than or equal to the preset second thickness, the control module controls the sampling unit to provide air inlet power for air in a workshop in the corresponding operation mode;
the corresponding operation mode is that the fan provides air inlet power for air in a workshop at a first corresponding rotating speed, wherein the first corresponding rotating speed is determined by a difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline and a preset first thickness.
Further, if the dust thickness of the inner wall of the horizontal air inlet pipeline is larger than the preset second thickness, the control module controls the humidity sensor to detect the actual humidity inside the horizontal air inlet pipeline,
and if the actual humidity in the horizontal air inlet pipeline is greater than the preset humidity, the control module controls the position adjusting unit to shorten the horizontal air inlet pipeline in the first working mode.
Further, the first working mode is that the control module controls the electric telescopic rod to shorten the horizontal air inlet pipeline by a first corresponding telescopic length, wherein the first corresponding telescopic length is determined by the difference value between the actual humidity inside the horizontal air inlet pipeline and the preset humidity.
Further, when the electric telescopic rod finishes shortening the horizontal air inlet pipeline by the first corresponding telescopic length, the control module controls the vibration sensor to detect the vibration intensity of the body,
and if the vibration intensity of the body is greater than the preset vibration intensity, the control module controls the position adjusting unit to extend the horizontal air inlet pipeline in the second working mode.
Further, the second working mode is that the control module controls the electric telescopic rod to extend the horizontal air inlet pipeline by a second corresponding telescopic length, wherein the second corresponding telescopic length is determined by the difference value between the vibration intensity of the body and the preset vibration intensity.
Compared with the prior art, the system has the beneficial effects that the system has the advantages that the running speed of the body is adjusted according to the variance of the dust concentration of a workshop through the body, the influence of electromagnetic interference on the dust concentration detector caused by the fact that the large-scale equipment generates electromagnetic interference on the dust concentration detector due to the inaccurate adjustment of the running speed of the body, the dust concentration detection precision is reduced due to the fact that the stability of laser occurrence is insufficient, the fan rotating speed is adjusted according to the dust thickness in the horizontal air inlet pipeline, the influence of partial scratches or dents caused by overlarge friction on the inner wall of the horizontal air inlet pipeline, which causes the reduction of the stability of dust concentration detection due to the fact that the horizontal air inlet pipeline absorbs partial dust, is reduced, the influence of external environment on the dust concentration detection precision reduction caused by the fact that the dust concentration detection precision is reduced due to the fact that the external environment interferes with the inside of the horizontal air inlet pipeline is reduced due to the inaccurate adjustment of the telescopic length of the horizontal air inlet pipeline is reduced, the influence of the dust concentration detection precision caused by the fact that the accurate adjustment of the horizontal air inlet pipeline is reduced due to the fact that the accurate air inlet pipeline is reduced due to the fact that the vibration strength of the fact that the horizontal air inlet pipeline is reduced due to the fact that the influence of the accuracy of the horizontal air inlet pipeline is reduced due to the fact that the influence on the stability of the dust concentration detection precision reduction of the dust concentration detection precision.
Furthermore, the system adjusts the running speed when the system passes through the large equipment by setting the difference value between the variance of the dust concentration of the workshop and the preset second variance, reduces the influence of insufficient stability of laser occurrence caused by the electromagnetic interference of the large equipment on the dust concentration detector on the reduction of the accuracy of dust concentration detection, and further realizes the improvement of the stability and the accuracy of dust concentration detection.
Furthermore, the system adjusts the rotating speed of the fan by setting the difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline and the preset first thickness, so that the influence of the reduction of the stability of dust concentration detection caused by the absorption of part of dust by the horizontal air inlet pipeline due to the occurrence of partial scratches or pits caused by overlarge friction of the inner wall of the horizontal air inlet pipeline is reduced, and the stability and the accuracy of dust concentration detection are further improved.
Furthermore, the system adjusts the telescopic length of the horizontal air inlet pipeline by setting the difference value between the actual humidity and the preset humidity in the horizontal air inlet pipeline, reduces the influence of the interference of the external environment on the inside of the horizontal air inlet pipeline on the reduction of the accuracy of dust concentration detection, and further realizes the improvement of the stability and the accuracy of the dust concentration detection.
Furthermore, the system disclosed by the invention has the advantages that the expansion length of the horizontal air inlet pipeline is secondarily adjusted by setting the difference value between the vibration intensity of the body and the preset vibration intensity, so that the influence of larger influence on the inside of the horizontal air inlet pipeline caused by external wind on the reduction of the stability of dust concentration detection is reduced, and the stability and the accuracy of dust concentration detection are further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a workshop dust concentration detection system according to an embodiment of the present invention;
FIG. 2 is a block diagram showing the overall construction of a workshop dust concentration detection system according to an embodiment of the present invention;
FIG. 3 is a block diagram showing a specific construction of a detection module of the workshop dust concentration detection system according to the embodiment of the present invention;
FIG. 4 is a block diagram of a connection structure of a detection module and a control module of the workshop dust concentration detection system according to the embodiment of the invention;
the reference numerals are as follows: 1-body, 2-dust concentration detector, 3-horizontal air inlet pipeline, 4-ultrasonic sensor, 5-humidity transducer, 6-fan, 7-air inlet, 8-bolt, 9-electric telescopic link, 10-vibration sensor, 11-driving motor, 12-gyro wheel, 13-vertical air inlet pipeline.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the overall structure diagram, the overall structure block diagram, the specific structure block diagram of the detection module, and the connection structure block diagram of the detection module and the control module of the workshop dust concentration detection system according to the embodiment of the invention are shown respectively. The invention relates to a workshop dust concentration detection system, which comprises:
a body 1;
the mobile module is used for adjusting the dust concentration detection position in the workshop and comprises a position adjusting unit for adjusting the horizontal position of the air inlet point;
the detection module is connected with the mobile module and comprises a dust concentration detector 2 which is arranged below the position adjustment unit and used for detecting the concentration of air dust in a workshop and a sampling unit which is connected with the position adjustment unit and used for sampling the air in the workshop, wherein the sampling unit comprises a horizontal air inlet pipeline 3 used for conveying the air in the workshop;
the monitoring module is respectively connected with the body 1 and the detection module and is used for monitoring sampling characteristic parameters, wherein the sampling characteristic parameters comprise dust thickness of the inner wall of the horizontal air inlet pipeline 3, internal humidity of the horizontal air inlet pipeline 3 and vibration intensity of the body 1;
a control module which is respectively connected with the body 1, the moving module, the detecting module and the monitoring module and is used for determining the running speed of the body 1 according to the variance of the dust concentration of a workshop, or determining the corresponding operation mode of the sampling unit according to the variance of the dust concentration of the workshop and the dust thickness of the inner wall of the horizontal air inlet pipeline 3, determining the first operation mode of the position adjusting unit according to the dust thickness of the inner wall of the horizontal air inlet pipeline 3 and the actual humidity inside the horizontal air inlet pipeline 3, determining the second operation mode of the position adjusting unit according to the vibration intensity of the body 1,
the telescopic length of the horizontal air inlet pipeline 3 in the first working mode is smaller than that of the horizontal air inlet pipeline 3 in the second working mode.
Specifically, the mobile module further includes:
the roller 12 is arranged below the body 1 and is used for driving the body 1 to move;
and a driving motor 11 connected to the body 1 for providing power for moving the body 1 in a horizontal direction.
Specifically, the horizontal air inlet pipeline 3 is a telescopic pipeline, and the materials comprise rubber, polyester film and polyurethane.
Specifically, the variance of the dust concentration in the workshop is the variance of the dust concentration in the workshop detected several times in a unit time, and the method for calculating the variance of the dust concentration in the workshop is a conventional technical means well known to those skilled in the art, so that the process for calculating the variance of the dust concentration in the workshop is not described herein.
According to the system, the body 1, the moving module, the detection module, the monitoring module and the control module are arranged, the running speed of the body is regulated according to the variance of the dust concentration in a workshop, the influence of electromagnetic interference on the dust concentration detector 2 caused by the fact that the stability of laser occurrence is insufficient due to the fact that large equipment generates electromagnetic interference on the running speed of the body is reduced, the rotating speed of the fan 6 is regulated according to the dust thickness in the horizontal air inlet pipeline 3, the influence of partial scratches or dents caused by overlarge friction on the inner wall of the horizontal air inlet pipeline 3 to the fact that the stability of the dust concentration detection is reduced due to the fact that the horizontal air inlet pipeline 3 absorbs partial dust is reduced, the influence of the fact that the stability of the dust concentration detection is reduced due to the fact that the outside environment generates interference on the inside of the horizontal air inlet pipeline 3 is reduced due to the fact that the stability of the expansion and contraction length of the horizontal air inlet pipeline 3 is not accurate is reduced due to the fact that the expansion and contraction length of the horizontal air inlet pipeline 3 is not accurately regulated according to the fact that the vibration strength of the body 1 carries out secondary regulation on the expansion and contraction length of the horizontal air inlet pipeline 3 is reduced.
With continued reference to fig. 1, the air intake unit further includes:
an air inlet 7 connected to the horizontal air intake duct 3 for introducing air in the workshop into the horizontal air intake duct 3;
a fan 6 connected to the horizontal air intake duct 3 for supplying air intake power;
a vertical air intake duct 13 connected to the horizontal air intake duct 3 for delivering air in the shop to the body 1.
With continued reference to fig. 1, the position adjustment unit includes:
an electric telescopic rod 9 connected to the vertical air intake duct 13 for adjusting the telescopic length of the horizontal air intake duct 3;
and a bolt 8 connected with the electric telescopic rod 9 for fixing the vertical distance between the electric telescopic rod 9 and the horizontal air inlet pipeline 3.
Specifically, the bolt 8 is fixedly connected with the horizontal air inlet pipeline 3 through threads.
With continued reference to fig. 1, the monitoring module includes:
an ultrasonic sensor 4 connected to the inner wall of the horizontal air intake duct 3 for detecting the dust thickness of the inner wall of the horizontal air intake duct 3;
a humidity sensor 5 provided on an inner wall of the horizontal intake duct 3 for detecting the humidity inside the horizontal intake duct 3;
a vibration sensor 10 provided below the horizontal intake duct 3 for detecting the vibration intensity of the body 1.
With continued reference to fig. 3, the control module controls the dust concentration detector 2 to detect the concentration of the plant dust in a unit time for several times, calculates the variance of the concentration of the plant dust,
if the variance of the dust concentration in the workshop is larger than a preset first variance, the control module judges that the stability of dust concentration detection is lower than an allowable range;
if the variance of the dust concentration of the workshop is larger than the preset first variance and smaller than or equal to the preset second variance, the control module preliminarily judges that the effectiveness of air sampling is lower than an allowable range, and carries out secondary judgment on the effectiveness of air sampling according to the dust thickness of the inner wall of the horizontal air inlet pipeline 3;
and if the variance of the dust concentration in the workshop is larger than the preset second variance, the control module determines the running speed of the body.
Specifically, the variance of the shop dust concentration was denoted as Q, the preset first variance was denoted as Q1, and q1=50 (mg/m 3 ） 2 The second variance is preset to be denoted as Q2, and q2=60 (mg/m 3 ） 2 The difference between the variance of the dust concentration in the plant and the preset second variance is recorded as Δq, and Δq=q-Q2 is set.
According to the system, the stability of dust concentration detection is judged by setting the preset first variance and the preset second variance, so that the influence of the reduction of the accuracy of dust concentration detection caused by the inaccurate judgment of the stability of dust concentration detection is reduced, and the improvement of the stability and the accuracy of dust concentration detection is further realized.
With continued reference to fig. 4, the running speed of the body is determined by a difference between the variance of the dust concentration in the workshop and a preset second variance.
Specifically, the specific process of determining the running speed of the body by the difference between the variance of the workshop dust concentration and the preset second variance is as follows:
the control module adjusts the running speed of the body to a first running speed by using a preset first running speed adjusting coefficient under the condition of a preset first variance value; the preset first variance difference condition is that the difference between the variance of the dust concentration of the workshop and the preset second variance is smaller than or equal to the preset variance difference;
the control module uses a preset second running speed adjusting coefficient to adjust the running speed of the body to a second running speed under the condition of a preset second variance difference value; the preset second variance difference condition is that the difference between the variance of the dust concentration of the workshop and the preset second variance is larger than the preset variance difference;
wherein the preset first travel speed adjustment coefficient is smaller than the preset second travel speed adjustment coefficient.
Specifically, the preset variance difference is denoted as Δq0, and Δq0=5 (mg/m 3 ） 2 The first running speed adjusting coefficient is preset to be alpha 1, the alpha 1 = 1.2, the second running speed adjusting coefficient is preset to be alpha 2, the alpha 2 = 1.4 and the running speed of the body to be V, wherein 1 < alpha 2, the running speed of the body after adjustment to be V ', the V' = V× (1+alpha i)/2 are preset, wherein alpha i is the i-th running speed adjusting coefficient, and i = 1,2 are set.
According to the system, the running speed of the large-scale equipment is regulated by setting the difference value between the variance of the dust concentration of the workshop and the preset second variance, so that the influence of the large-scale equipment on the reduction of the accuracy of dust concentration detection caused by insufficient stability of laser generated by electromagnetic interference of the large-scale equipment on the dust concentration detector 2 is reduced, and the stability and accuracy of dust concentration detection are further improved.
With continued reference to fig. 1, if the variance of the dust concentration in the workshop is greater than the preset first variance and less than or equal to the preset second variance, the control module controls the ultrasonic sensor 4 to detect the dust thickness on the inner wall of the horizontal air inlet pipe 3,
if the dust thickness of the inner wall of the horizontal air inlet pipeline 3 is larger than the preset first thickness, the control module secondarily judges that the effectiveness of air sampling is lower than the allowable range;
if the dust thickness of the inner wall of the horizontal air inlet pipeline 3 is larger than the preset first thickness and smaller than or equal to the preset second thickness, the control module controls the sampling unit to provide air inlet power for air in a workshop in the corresponding operation mode;
if the dust thickness of the inner wall of the horizontal air inlet pipeline 3 is larger than the preset second thickness, the control module secondarily judges that the interference degree of the environment exceeds the allowable range, and secondarily judges the interference degree of the environment according to the actual humidity in the horizontal air inlet pipeline 3.
Specifically, the preset first thickness is denoted by P1, the preset second thickness is denoted by P2, the preset second thickness is denoted by p2=5mm, the dust thickness of the inner wall of the horizontal air intake duct 3 is denoted by P, the difference between the dust thickness of the inner wall of the horizontal air intake duct 3 and the preset first thickness is denoted by Δp, and Δp=p-P1 is set.
According to the system, the preset first thickness and the preset second thickness are set, so that the effectiveness of air sampling is secondarily judged, the influence of reduction of the stability of dust concentration detection caused by inaccurate secondary judgment of the effectiveness of air sampling is reduced, and the stability and the accuracy of dust concentration detection are further improved.
With continued reference to fig. 1, the corresponding operation mode is that the fan 6 provides air intake power for air in the workshop at a first corresponding rotation speed, where the first corresponding rotation speed is determined by a difference between the dust thickness of the inner wall of the horizontal air intake duct 3 and a preset first thickness.
Specifically, the specific process of determining the first corresponding rotation speed through the difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline 3 and the preset first thickness is as follows:
the control module adjusts the rotating speed of the fan 6 to a first rotating speed by using a preset first rotating speed adjusting coefficient under the condition of a preset first thickness difference value; the preset first thickness difference condition is that the difference between the dust thickness of the inner wall of the horizontal air inlet pipeline 3 and the preset first thickness is smaller than or equal to the preset thickness difference;
the control module adjusts the rotating speed of the fan 6 to a second rotating speed by using a preset second rotating speed adjusting coefficient under the condition of a preset second thickness difference value; the condition of the preset second thickness difference value is that the difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline 3 and the preset first thickness is larger than the preset thickness difference value;
wherein the preset first rotation speed adjustment coefficient is smaller than the preset second rotation speed adjustment coefficient.
Specifically, the first corresponding rotational speed includes the first rotational speed and the second rotational speed.
Specifically, the preset thickness difference is denoted as Δp0, Δp0=1 mm is set, the preset first rotation speed adjustment coefficient is denoted as β1, β1=1.1, the preset second rotation speed adjustment coefficient is denoted as β2, β2=1.3, the fan 6 rotation speed is denoted as H, wherein 1 < β1 < β2, the first corresponding rotation speed is denoted as H ', H' =h× (1+2βj)/3, wherein βj is the preset j-th rotation speed adjustment coefficient, and j=1, 2.
According to the system, the rotating speed of the fan 6 is regulated by setting the difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline 3 and the preset first thickness, so that the influence of reduction of the dust concentration detection stability caused by absorption of part of dust by the horizontal air inlet pipeline 3 due to partial scratch or dent caused by overlarge friction of the inner wall of the horizontal air inlet pipeline 3 is reduced, and the stability and the accuracy of the dust concentration detection are further improved.
With continued reference to fig. 1, if the dust thickness of the inner wall of the horizontal air intake duct 3 is greater than the preset second thickness, the control module controls the humidity sensor 5 to detect the actual humidity inside the horizontal air intake duct 3,
if the actual humidity inside the horizontal air inlet pipeline 3 is greater than the preset humidity, the control module secondarily determines that the interference degree of the environment exceeds the allowable range, and controls the position adjusting unit to shorten the horizontal air inlet pipeline 3 in the first working mode.
Specifically, the preset humidity is denoted as Y0, and y0=5g/m is set 3 The actual humidity inside the horizontal intake duct 3 is denoted as Y, the difference between the actual humidity inside the horizontal intake duct 3 and the preset humidity is denoted as Δy, and Δy=y—y0 is set.
According to the system, the preset humidity is set, so that the secondary judgment is carried out on the interference degree of the environment, the influence of the reduction of the accuracy of dust concentration detection caused by the imprecise secondary judgment on the interference degree of the environment is reduced, and the stability and the accuracy of dust concentration detection are further improved.
With continued reference to fig. 1, the first working mode is that the control module controls the electric telescopic rod 9 to shorten the horizontal air intake duct 3 by a first corresponding telescopic length, where the first corresponding telescopic length is determined by a difference between an actual humidity inside the horizontal air intake duct 3 and a preset humidity.
Specifically, the specific process of determining the first corresponding telescopic length through the difference between the actual humidity and the preset humidity in the horizontal air inlet pipeline 3 is as follows:
the control module adjusts the telescopic length of the horizontal air inlet pipeline 3 to a first telescopic length by using a preset second telescopic length adjusting coefficient under the condition of a preset first humidity difference value; the preset first humidity difference condition is that the difference between the actual humidity in the horizontal air inlet pipeline 3 and the preset humidity is smaller than or equal to the preset humidity difference;
the control module adjusts the telescopic length of the horizontal air inlet pipeline 3 to a second telescopic length by using a preset first telescopic length adjusting coefficient under the condition of a preset second humidity difference value; the preset second humidity difference condition is that the difference between the actual humidity in the horizontal air inlet pipeline 3 and the preset humidity is larger than the preset humidity difference;
the preset first telescopic length adjusting coefficient is smaller than the preset second telescopic length adjusting coefficient.
Specifically, the first corresponding telescoping length includes the first telescoping length and the second telescoping length.
Specifically, the preset humidity difference is denoted as Δy0, and Δy0=1 g/m is set 3 The preset first telescopic length adjustment coefficient is denoted by γ1, γ1=0.8, the preset second telescopic length adjustment coefficient is denoted by γ2, γ2=0.9, the telescopic length of the horizontal air inlet duct 3 is denoted by L, wherein 0 < γ1 < γ2 < 1, the first corresponding telescopic length is denoted by L ', L' =lx (1+3γm)/4 is set, γm is the preset mth telescopic length adjustment coefficient, and m=1, 2 is set.
According to the system, the difference value between the actual humidity and the preset humidity in the horizontal air inlet pipeline 3 is set, so that the telescopic length of the horizontal air inlet pipeline 3 is adjusted, the influence of interference of the external environment on the inside of the horizontal air inlet pipeline 3 on the reduction of the accuracy of dust concentration detection is reduced, and the stability and the accuracy of dust concentration detection are further improved.
With continued reference to fig. 1, when the electric telescopic rod 9 finishes the shortening of the horizontal intake duct 3 by the first corresponding telescopic length, the control module controls the vibration sensor 10 to detect the vibration intensity of the body 1,
if the vibration intensity of the body 1 is greater than the preset vibration intensity, the control module determines that the overall structural stability is lower than the allowable range, and controls the position adjustment unit to extend the horizontal air inlet pipeline 3 in the second working mode.
Specifically, the preset vibration intensity is denoted as R0, r0=10 mm/s is set, the vibration intensity of the body 1 is denoted as R, the difference between the vibration intensity of the body 1 and the preset vibration intensity is denoted as Δr, and Δr=r—r0 is set.
According to the system, the preset vibration intensity is set, so that the overall structural stability is judged, the influence of the reduction of the stability of dust concentration detection caused by inaccurate judgment of the overall structural stability is reduced, and the stability and the accuracy of dust concentration detection are further improved.
With continued reference to fig. 1, the second working mode is that the control module controls the electric telescopic rod 9 to extend the horizontal air inlet pipe 3 by a second corresponding telescopic length, where the second corresponding telescopic length determines the second working mode by a difference value between the vibration intensity of the body 1 and the preset vibration intensity, and the control module controls the electric telescopic rod 9 to adjust the telescopic length of the horizontal air inlet pipe 3 by the second corresponding telescopic length.
Specifically, the specific process of determining the second corresponding telescopic length through the difference value between the vibration intensity of the body 1 and the preset vibration intensity is as follows:
the control module secondarily adjusts the telescopic length of the horizontal air inlet pipeline 3 to a third telescopic length by using a preset third telescopic length secondary adjustment coefficient under the condition of presetting a first vibration intensity difference value; the preset first vibration intensity difference condition is that the difference value between the vibration intensity of the body 1 and the preset vibration intensity is smaller than or equal to the preset vibration intensity difference value;
the control module secondarily adjusts the telescopic length of the horizontal air inlet pipeline 3 to a fourth telescopic length by using a preset fourth telescopic length secondary adjustment coefficient under the condition of presetting a second vibration intensity difference value; the condition of the preset second vibration intensity difference value is that the difference value between the vibration intensity of the body 1 and the preset vibration intensity is larger than the preset vibration intensity difference value;
the preset second telescopic length secondary adjustment coefficient is smaller than the preset fourth telescopic length secondary adjustment coefficient.
Specifically, the second corresponding telescoping length includes the third telescoping length and the fourth telescoping length.
Specifically, the preset vibration intensity difference is denoted as Δr0, Δr0=2 mm/s is set, the preset third telescoping length secondary adjustment coefficient is denoted as γ3, γ3=1.15 is set, the preset fourth telescoping length secondary adjustment coefficient is denoted as γ4, γ4=1.25 is set, wherein 1 < γ3 < γ4, the second corresponding telescoping length is denoted as L ", L" =l' × (1+3γw)/4 is set, γw is the preset w-th telescoping length secondary adjustment coefficient, and w=3, 4 is set.
According to the system, the difference value of the vibration intensity of the body 1 and the preset vibration intensity is set, so that the telescopic length of the horizontal air inlet pipeline 3 is secondarily adjusted, the influence of the larger influence on the inside of the horizontal air inlet pipeline 3 caused by external wind on the reduction of the stability of dust concentration detection is reduced, and the stability and the accuracy of dust concentration detection are further improved.
Example 1
The control module of this embodiment 1 adjusts the running speed of the main body according to the difference between the variance of the dust concentration in the workshop and the preset second variance, wherein the preset variance difference is denoted as Δq0, the preset first running speed adjustment coefficient is denoted as α1, the preset second running speed adjustment coefficient is denoted as α2, and the running speed of the main body is denoted as V, wherein 1 < α1 < α2, α1=1.2, α2=1.4, and Δq0=5 (mg/m 3 ） 2 ，V=1.2m/s。
The result of this example 1 was Δq=6 (mg/m 3 ） 2 The control module determines Δq > Δq0and adjusts the travel speed of the body to a second travel speed using a preset first travel speed adjustment coefficient, calculating V' =1.2 m/s× (1+1.2)/2=1.32 m/s.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (10)
1. A plant dust concentration detection system, comprising:
a body;
the mobile module is used for adjusting the dust concentration detection position in the workshop and comprises a position adjusting unit for adjusting the horizontal position of the air inlet point;
the detection module is connected with the mobile module and comprises a dust concentration detector and a sampling unit, wherein the dust concentration detector is arranged below the position adjustment unit and used for detecting the concentration of air dust in a workshop, and the sampling unit is connected with the position adjustment unit and used for sampling the air in the workshop, and the sampling unit comprises a horizontal air inlet pipeline used for conveying the air in the workshop;
the monitoring module is respectively connected with the body and the detection module and is used for monitoring sampling characteristic parameters, wherein the sampling characteristic parameters comprise dust thickness of the inner wall of the horizontal air inlet pipeline, internal humidity of the horizontal air inlet pipeline and vibration intensity of the body;
the control module is respectively connected with the body, the moving module, the detecting module and the monitoring module and is used for determining the running speed of the body according to the variance of the dust concentration of a workshop, or determining the corresponding running mode of the sampling unit according to the variance of the dust concentration of the workshop and the dust thickness of the inner wall of the horizontal air inlet pipeline, determining the first working mode of the position adjusting unit according to the dust thickness of the inner wall of the horizontal air inlet pipeline and the actual humidity inside the horizontal air inlet pipeline, determining the second working mode of the position adjusting unit according to the vibration intensity of the body,
the telescopic length of the horizontal air inlet pipeline in the first working mode is smaller than that of the horizontal air inlet pipeline in the second working mode.
2. The plant dust concentration detection system of claim 1, wherein the sampling unit further comprises:
an air inlet connected to the horizontal air intake duct for introducing air in the workshop into the horizontal air intake duct;
the fan is connected with the horizontal air inlet pipeline and used for providing air inlet power;
and the vertical air inlet pipeline is connected with the horizontal air inlet pipeline and is used for conveying air in the workshop to the body.
3. The shop floor dust concentration detection system according to claim 2, wherein the position adjustment unit comprises:
the electric telescopic rod is connected with the vertical air inlet pipeline and is used for adjusting the telescopic length of the horizontal air inlet pipeline;
and the bolt is connected with the electric telescopic rod and used for fixing the vertical distance between the electric telescopic rod and the horizontal air inlet pipeline.
4. The plant dust concentration detection system of claim 3, wherein the monitoring module includes:
the ultrasonic sensor is connected with the inner wall of the horizontal air inlet pipeline and is used for detecting the dust thickness of the inner wall of the horizontal air inlet pipeline;
the humidity sensor is arranged on the inner wall of the horizontal air inlet pipeline and used for detecting the humidity in the horizontal air inlet pipeline;
and the vibration sensor is arranged below the horizontal air inlet pipeline and is used for detecting the vibration intensity of the body.
5. The system of claim 4, wherein the control module controls the dust concentration detector to detect the concentration of the plant dust several times per unit time and calculates the variance of the concentration of the plant dust,
if the variance of the dust concentration in the workshop is larger than a preset second variance, the control module determines the running speed of the body;
the running speed of the body is determined by the difference between the variance of the dust concentration of the workshop and the preset second variance.
6. The system of claim 5, wherein the control module controls the ultrasonic sensor to detect the dust thickness of the inner wall of the horizontal air intake pipe if the variance of the dust concentration of the plant is greater than a preset first variance and less than or equal to the preset second variance,
if the dust thickness of the inner wall of the horizontal air inlet pipeline is larger than the preset first thickness and smaller than or equal to the preset second thickness, the control module controls the sampling unit to provide air inlet power for air in a workshop in the corresponding operation mode;
the corresponding operation mode is that the fan provides air inlet power for air in a workshop at a first corresponding rotating speed, wherein the first corresponding rotating speed is determined by a difference value between the dust thickness of the inner wall of the horizontal air inlet pipeline and a preset first thickness.
7. The plant dust concentration detection system according to claim 6, wherein the control module controls the humidity sensor to detect the actual humidity inside the horizontal air intake duct if the dust thickness of the inner wall of the horizontal air intake duct is greater than the preset second thickness,
and if the actual humidity in the horizontal air inlet pipeline is greater than the preset humidity, the control module controls the position adjusting unit to shorten the horizontal air inlet pipeline in the first working mode.
8. The plant dust concentration detection system according to claim 7, wherein the first operation mode is that the control module controls the electric telescopic rod to shorten the horizontal air intake duct by a first corresponding telescopic length, wherein the first corresponding telescopic length is determined by a difference between an actual humidity inside the horizontal air intake duct and a preset humidity.
9. The plant dust concentration detection system according to claim 8, wherein the control module controls the vibration sensor to detect the vibration intensity of the body when the electric telescopic rod completes shortening of the horizontal intake duct by the first corresponding telescopic length,
and if the vibration intensity of the body is greater than the preset vibration intensity, the control module controls the position adjusting unit to extend the horizontal air inlet pipeline in the second working mode.
10. The plant dust concentration detection system according to claim 9, wherein the second operation mode is that the control module controls the electric telescopic rod to extend the horizontal air intake duct by a second corresponding telescopic length, wherein the second corresponding telescopic length is determined by a difference between the vibration intensity of the body and a preset vibration intensity.
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