CN204003557U - Laboratory Furniture blower fan control system with voice broadcast - Google Patents
Laboratory Furniture blower fan control system with voice broadcast Download PDFInfo
- Publication number
- CN204003557U CN204003557U CN201420477209.2U CN201420477209U CN204003557U CN 204003557 U CN204003557 U CN 204003557U CN 201420477209 U CN201420477209 U CN 201420477209U CN 204003557 U CN204003557 U CN 204003557U
- Authority
- CN
- China
- Prior art keywords
- blower fan
- voice broadcast
- control system
- laboratory furniture
- fan control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Positive-Displacement Air Blowers (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of Laboratory Furniture blower fan control system with voice broadcast.It has connected MQ-2 gas transducer, blower fan, display screen and loudspeaker.Setting by user in the UI interface that button and display screen provide, provides the voice message of corresponding experiment, and controls rotation speed of fan, and corresponding air quantity is provided.System connects MQ-2 gas transducer, automatically controls blower fan full speed running when there is sensitive gas or smog, has reached effect energy-conservation and increase Security.
Description
Technical field
The utility model relates to a kind of auxiliary device of controlling Laboratory Furniture blower fan, especially can be applicable to laboratory teaching system.
Background technique
The ventilation system in laboratory is more and more important in laboratory is used, particularly in some chemical experiments, electronic welding experiment.Usually need to be in experiment specific time period good ventilated environment is provided, to occurring that mistake gives prompting operation.
The step that Laboratory Furniture blower fan control system with voice broadcast of the present utility model can carry out according to experiment is different, and rotation speed of fan is pointed out and controlled to automatically opening voice.The saving of the energy of both having realized is like this also for operator provides experimental situation easily.
This model utility designed a kind of cheap, can control according to experiment demand the intelligent blower control system of fan delivery size.Can be applied to Ge great colleges and universities, research institute, and enterprises and institutions.
Summary of the invention
In order to overcome existing laboratory ventilation system, can not automatically adjust rotation speed of fan according to experiment content, the drawback of corresponding ventilation requirement is provided, the utility model adopts STM32f103 singlechip chip to control blower fan system, additional MQ-2 gas transducer and loudspeaker, according to actual conditions, regulate air quantity, and voice broadcast function is provided.
The utility model solves the technological scheme that its technical problem adopts: user is by selecting being stored in the experiment parameter of single-chip microcomputer inside, current experiment content is set, system is used STM32f103 single-chip microcomputer to obtain sensor information, to obtain current Laboratory Furniture service condition, control system is controlled blower fan air output with pwm signal, is achieved the intelligent control of total air output.Special gas sensor is set on Laboratory Furniture blower fan, when occurring that experiment accident or other cause inflammable gas to overflow, automatically adds Wind Volume, and point out user.
By button and the display screen of control system, user can realize the setting of blower fan termination function, and voice message content that can be different according to actual experiment content choice facilitates guiding experiment operation.A plurality of experiment prediction schemes, by being stored in the storage inside of STM32f103 single-chip microcomputer, are not lost after power down.
Main control chip is arranged on every MQ-2 gas transducer on Laboratory Furniture blower fan by monitoring, can be in the situation that there is inflammable gas or smog enforced opening maximum quantity of wind start audible and visible alarm.
The beneficial effects of the utility model are by reducing energy waste, conveniently test and carry out to the intelligent control of blower fan with to people's in good time prompting, meanwhile, automatically to process default urgency, raising experiment safety.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is control principle drawing of the present utility model.
The 1. Laboratory Furniture blower fan control systems with voice broadcast in figure, 2. display screen, 3. button, 4. loudspeaker, 5. sensor signal, 6.PWM signal, 7. Laboratory Furniture, 8 Laboratory Furniture blower fans.
Embodiment
When each unlatching Laboratory Furniture blower fan system, Laboratory Furniture blower fan control system (1) with voice broadcast starts thereupon, button (3) and display screen (2) by system panel are selected current experiment content, after determining, system is according to default air quantity, simultaneously the automatic information broadcast experiment instruction of automatically regulating.After user completes corresponding experimental procedure, button continues operation, and system is reported the voice message of next step step automatically, and controls by pwm signal (6) speed that rotation speed of fan needs to corresponding experiment link.When sensor signal in experimentation (5) has monitored inflammable gas or smog, system monitors inflammable gas by loudspeaker (4) prompting, and controls Laboratory Furniture blower fan (8) full speed running, and inflammable gas is discharged in time, and Accident prevention occurs.
In Fig. 1, what control rotation speed of fan is the PWM(pulsewidth modulation from STM32f103 single-chip microcomputer) signal (6), a MQ-2 gas transducer is installed, for detection of inflammable gas in each blower fan of Laboratory Furniture (7).Sensor signal (5) in Laboratory Furniture (7), Laboratory Furniture blower fan (8) control signal are connected with native system by signaling line respectively, once inflammable gas be detected, system will sound the alarm by loudspeaker (4), total fan delivery will be adjusted into simultaneously maximum and display reminding content on display screen (2).
Under normal operation, control system, by predefined experiment content, is normally reported experimental procedure and adjusts exhaust air rate.
Claims (3)
1. the Laboratory Furniture blower fan control system with voice broadcast, system has connected MQ-2 gas transducer, blower fan, display screen and loudspeaker, it is characterized in that: the experiment voice broadcast experimental procedure that can select according to user, when there is combustible gas leakage or smog, can make prompting and process.
2. the Laboratory Furniture blower fan control system with voice broadcast according to claim 1, it is characterized in that: use STM32f103 single-chip microcomputer as controller, under the button that user provides at it and the interactive interface of display screen, select the experiment that will do, system provides the voice message of corresponding experimental procedure, and controls the speed that rotation speed of fan needs to this experimental procedure.
3. the Laboratory Furniture blower fan control system with voice broadcast according to claim 1, it is characterized in that having connected MQ-2 gas transducer, to the inflammable gas of this gas transducer sensitivity and smog, can detect, once detect, system will be by the loudspeaker alarm of sounding, and controls blower fan full speed running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477209.2U CN204003557U (en) | 2014-08-23 | 2014-08-23 | Laboratory Furniture blower fan control system with voice broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477209.2U CN204003557U (en) | 2014-08-23 | 2014-08-23 | Laboratory Furniture blower fan control system with voice broadcast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003557U true CN204003557U (en) | 2014-12-10 |
Family
ID=52043564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420477209.2U Expired - Fee Related CN204003557U (en) | 2014-08-23 | 2014-08-23 | Laboratory Furniture blower fan control system with voice broadcast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863135A (en) * | 2020-12-30 | 2021-05-28 | 无锡市疾病预防控制中心 | Experimental process prompting and early warning system of experimental assistant robot |
-
2014
- 2014-08-23 CN CN201420477209.2U patent/CN204003557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863135A (en) * | 2020-12-30 | 2021-05-28 | 无锡市疾病预防控制中心 | Experimental process prompting and early warning system of experimental assistant robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150823 |
|
| EXPY | Termination of patent right or utility model |