CN103433264B - A kind of ventilated chamber and interference detection control device - Google Patents
A kind of ventilated chamber and interference detection control device Download PDFInfo
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- CN103433264B CN103433264B CN201310393342.XA CN201310393342A CN103433264B CN 103433264 B CN103433264 B CN 103433264B CN 201310393342 A CN201310393342 A CN 201310393342A CN 103433264 B CN103433264 B CN 103433264B
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- ventilated chamber
- infrared detector
- controller
- pedestrian
- motor
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Abstract
The invention discloses a kind of ventilated chamber interference detection and control device, including: infrared detector (1), controller (2) and motor (3), wherein infrared detector (1) is arranged on whether the top panel of ventilated chamber exists pedestrian's interference before detecting ventilated chamber, controller (2) is connected with infrared detector (1) and motor (3), when infrared detector (1) detect exist controller when pedestrian disturbs (2) improve motor (3) rotating speed.Ventilated chamber arranging, whether infrared detector exists pedestrian's interference before detecting ventilated chamber, when there is pedestrian and disturbing, controller improves the rotating speed of motor, to promote the face wind speed of ventilated chamber, the face wind speed making ventilated chamber is constant in setting value, eliminate pedestrian's interference to ventilated chamber face wind speed, it is achieved that the accurate using effect of ventilated chamber.
Description
Technical field
The present invention relates to ventilated chamber technical field, particularly relate to a kind of ventilated chamber interference detection and control device, with
And apply this interference detection to control the ventilated chamber of device.
Background technology
Along with ventilated chamber technology and the continuous rising of requirement, it is desirable to ventilated chamber can constant wind speed.Prior art
In, when having pedestrian to pass through in face of ventilated chamber, the face fluctuations in wind speed of ventilated chamber can be caused, and tradition ventilation cabinet
Pedestrian can not disturb wind conditions make control reaction, thus can not realize the constant of ventilated chamber face wind speed,
Affect the accurate using effect of ventilated chamber.
Summary of the invention
The problem existed for prior art, the invention reside in and propose a kind of ventilated chamber and interference detection control
Device, eliminates pedestrian's interference to ventilated chamber face wind speed, it is achieved that ventilated chamber face wind speed constant, it is ensured that
The accurate using effect of ventilated chamber.
For reaching this purpose, the present invention by the following technical solutions:
A kind of ventilated chamber interference detection controls device, including: infrared detector, controller and motor, its
Middle infrared (Mid-IR) detector is arranged on whether the top panel of ventilated chamber exists pedestrian's interference before detecting ventilated chamber,
Controller is connected with infrared detector and motor, there is pedestrian disturb time control when infrared detector detects
Device processed improves the rotating speed of motor.
Preferably, infrared detector diagonally downward and and horizontal plane between in 30 °～60 ° of angles.
Preferably, infrared detector is normally-open normally-close type.
Preferably, controller is PLC.
A kind of ventilated chamber, applies above-mentioned interference detection to control device, and wherein infrared detector is arranged on ventilation
The top panel of cabinet.
Disclosure based on above technical scheme, the present invention possesses following beneficial effect:
In the present invention, ventilated chamber is arranged whether infrared detector exists pedestrian before detecting ventilated chamber
Interference, when there is pedestrian and disturbing, controller improves the rotating speed of motor, to promote the face wind speed of ventilated chamber, makes
The face wind speed obtaining ventilated chamber is constant in setting value, eliminates pedestrian's interference to ventilated chamber face wind speed, it is achieved that
The accurate using effect of ventilated chamber.
Accompanying drawing explanation
Fig. 1 is the annexation figure that a kind of ventilated chamber interference detection that the present invention proposes controls device.
Fig. 2 is the mounting structure schematic diagram of Fig. 1 middle infrared (Mid-IR) detector.
Detailed description of the invention
It is the annexation figure that a kind of ventilated chamber interference detection that the present invention proposes controls device with reference to Fig. 1, Fig. 1,
Fig. 2 is the mounting structure schematic diagram of Fig. 1 middle infrared (Mid-IR) detector.
As it is shown in figure 1, a kind of ventilated chamber interference detection that the embodiment of the present invention proposes controls device, including red
Outer line detector 1, controller 2 and motor 3, wherein:
As in figure 2 it is shown, infrared detector 1 is arranged on the top panel W of ventilated chamber, specifically, at ventilated chamber
The top panel of W is provided with installing mechanism T, and infrared detector 1 is arranged on the upper of ventilated chamber by installing mechanism T
Panel W, infrared detector 1 diagonally downward and and horizontal plane between in 30 °～60 ° of angles, be preferably
45 ° of angles, its Effect on Detecting is more preferably.Infrared detector 1 is human motion before movable detection ventilated chamber
Infrared ray changes, and whether there is pedestrian's interference before judging ventilated chamber, infrared detector 1 can be selected for normally opened
Closed type；
Controller 2 is connected with infrared detector 1 and motor 3, and preferably controller is PLC, visits at infrared ray
Survey and whether there is pedestrian before device 1 detects ventilated chamber when disturbing, to controller 2 output current signal, control
Device 2 through PID accurately calculate output control signal with improve motor 3 rotating speed, by increase air quantity thus
Promote the face wind speed of ventilated chamber so that the face wind speed of ventilated chamber is constant in setting value.
When specific design, infrared detector 1 can be selected for the SN-818-6 infra-red detection of normally-open normally-close type
Device, tertiary vein punching counting scalable, facilitate different environment to install, dynamic thresholding regulation technology, effectively
Preventing interference, NC/NO is optional in output of reporting to the police, and is suitable for different alarm host machine.
In above-described embodiment, ventilated chamber is arranged whether infrared detector exists before detecting ventilated chamber
Pedestrian disturbs, and when there is pedestrian and disturbing, controller improves the rotating speed of motor, to promote the face wind speed of ventilated chamber,
The face wind speed making ventilated chamber is constant in setting value, eliminates pedestrian's interference to ventilated chamber face wind speed, it is achieved
The accurate using effect of ventilated chamber.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (3)
1. a ventilated chamber interference detection controls device, it is characterised in that including: infrared detector (1),
Controller (2) and motor (3), wherein to be arranged on the top panel of ventilated chamber logical for detecting for infrared detector (1)
Whether there is pedestrian's interference before wind cabinet, controller (2) is connected with infrared detector (1) and motor (3), hot
Outer line detector (1) detects the rotating speed that there is controller when pedestrian disturbs (2) raising motor (3)；
Infrared detector (1) diagonally downward and and horizontal plane between in 30 °～60 ° of angles；
Controller (2) is PLC, there is pedestrian when disturbing before infrared detector (1) detects ventilated chamber,
To controller (2) output current signal, controller (2) through PID accurately calculate output control signal with
Improve the rotating speed of motor (3), promote the face wind speed of ventilated chamber by increasing air quantity so that ventilated chamber
Face wind speed is constant in setting value.
Ventilated chamber interference detection the most according to claim 1 controls device, it is characterised in that infrared ray
Detector (1) is normally-open normally-close type.
3. a ventilated chamber, it is characterised in that application ventilated chamber interference described in any one of claim 1-2
Detecting and controlling unit, wherein infrared detector is arranged on the top panel of ventilated chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393342.XA CN103433264B (en) | 2013-09-02 | 2013-09-02 | A kind of ventilated chamber and interference detection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393342.XA CN103433264B (en) | 2013-09-02 | 2013-09-02 | A kind of ventilated chamber and interference detection control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103433264A CN103433264A (en) | 2013-12-11 |
| CN103433264B true CN103433264B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393342.XA Active CN103433264B (en) | 2013-09-02 | 2013-09-02 | A kind of ventilated chamber and interference detection control device |
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| Country | Link |
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| CN (1) | CN103433264B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314822A (en) * | 2017-07-19 | 2017-11-03 | 江苏永钢集团有限公司 | A kind of hot metal detector support for hot-rolled steel production line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859174B1 (en) * | 2008-01-08 | 2008-09-19 | 삼인싸이언스(주) | Variable air ventilation control system and methode using constant face-velocity control |
| CN101298078A (en) * | 2008-06-10 | 2008-11-05 | 广州雷蒙特科学实验室设备有限公司 | Intelligent toxin-expelling cabinet |
| CN101537376A (en) * | 2009-03-12 | 2009-09-23 | 李保标 | Laboratory ventilated cabinet |
| JP4961366B2 (en) * | 2008-02-04 | 2012-06-27 | 株式会社日立産機システム | Safety cabinet |
| CN202539164U (en) * | 2012-03-07 | 2012-11-21 | 宜兴市中美实验设备有限公司 | Intelligent fume cupboard |
| CN203541051U (en) * | 2013-09-02 | 2014-04-16 | 安徽华盛科技控股股份有限公司 | Ventilation cabinet and interference detection control device |
-
2013
- 2013-09-02 CN CN201310393342.XA patent/CN103433264B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859174B1 (en) * | 2008-01-08 | 2008-09-19 | 삼인싸이언스(주) | Variable air ventilation control system and methode using constant face-velocity control |
| JP4961366B2 (en) * | 2008-02-04 | 2012-06-27 | 株式会社日立産機システム | Safety cabinet |
| CN101298078A (en) * | 2008-06-10 | 2008-11-05 | 广州雷蒙特科学实验室设备有限公司 | Intelligent toxin-expelling cabinet |
| CN101537376A (en) * | 2009-03-12 | 2009-09-23 | 李保标 | Laboratory ventilated cabinet |
| CN202539164U (en) * | 2012-03-07 | 2012-11-21 | 宜兴市中美实验设备有限公司 | Intelligent fume cupboard |
| CN203541051U (en) * | 2013-09-02 | 2014-04-16 | 安徽华盛科技控股股份有限公司 | Ventilation cabinet and interference detection control device |
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| Publication number | Publication date |
|---|---|
| CN103433264A (en) | 2013-12-11 |
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