CN116006240A - Automatic air door control method and system based on dual-type infrared sensor - Google Patents
Automatic air door control method and system based on dual-type infrared sensor Download PDFInfo
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- CN116006240A CN116006240A CN202310076259.3A CN202310076259A CN116006240A CN 116006240 A CN116006240 A CN 116006240A CN 202310076259 A CN202310076259 A CN 202310076259A CN 116006240 A CN116006240 A CN 116006240A
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Abstract
The invention relates to an automatic air door control method and system based on a dual-type infrared sensor, and belongs to the technical field of underground air door intelligent control. The control system comprises a signal detection module, a linkage control module, a signal output module and a signal processor, wherein the linkage control module is respectively connected with the signal processing module and the signal output module, and the signal detection module is connected with the signal processing module. The control system judges whether personnel or vehicles pass through the air door through the infrared correlation sensor, senses the temperature change near the air door through the infrared temperature sensor, and combines the sensor detection signal to control the opening and closing of the air door. The invention can avoid the accidents of clamping people and vehicles, and improves the safety and reliability of the operation of the automatic air door.
Description
Technical Field
The invention belongs to the technical field of underground air door intelligent control, and relates to an automatic air door control method and system based on a dual-type infrared sensor.
Background
Mine ventilation is an important link of coal mine production and is closely related to mine safety, and is mainly characterized in that enough fresh air is sent underground, meanwhile, the air after the harmful gas and the dust are diluted is discharged out of the ground, the quality of underground air is guaranteed, oxygen required by underground workers for breathing is supplied, the concentration of the dust is limited within a safe range, and the underground humidity, temperature and wind speed meet the requirements. The mine ventilation facilities are mainly used for controlling the underground wind flow, so that the wind flow can flow directionally and quantitatively according to a planned line, and the mine ventilation facilities can be divided into facilities for guiding the wind flow, facilities for blocking the wind flow, facilities for adjusting the wind flow and the like according to purposes.
Dampers are common wind flow blocking devices in mine ventilation systems and are typically placed in roadways that block the flow of wind and allow vehicles and personnel to pass through. The traditional automatic air door has the problems of low automation degree, short service life, incapability of monitoring, potential safety hazard and the like by utilizing the functions of realizing automatic closing by using the counterweight or installing the inclination angle in a self-matching manner. The automatic air door technology developed at present mainly uses a PLC or a microcontroller as a control core, uses electric, hydraulic or pneumatic power as power for opening and closing the air door, uses a photosensitive sensor, an infrared correlation sensor and the like as detection devices for detecting personnel or vehicles, and realizes the automatic control of the air door through the combination of the components. In the mode of detecting personnel or vehicle actions, the condition that false triggering is easy to occur is detected based on a single photosensitive sensor or an infrared correlation sensor, for example, when water drops in a coal mine roadway pass through light rays or infrared beams, the sensor is easy to send false signals, and therefore when no personnel or vehicle needs to pass through, the air door is opened in an error mode, and wind current disorder possibly occurs, and accidents occur.
Disclosure of Invention
Therefore, the invention aims to provide an automatic air door control method and system based on a dual-type infrared sensor, which can avoid the false opening of an air door, avoid the occurrence of accidents of clamping people and vehicles and improve the safety and reliability of the operation of the automatic air door by combining an infrared correlation sensor with an infrared temperature sensor to sense the information near the air door.
In order to achieve the above purpose, the present invention provides the following technical solutions:
according to the scheme I, an automatic air door control method based on an infrared dual-type sensor is characterized in that whether a person or a vehicle passes through an air door or not is detected through an infrared correlation sensor and an infrared temperature sensor, and temperature change near the air door is detected; when the infrared correlation sensor detects that a person or a vehicle passes through the air door, the air door is opened, otherwise, the air door is closed; when the temperature detected by the infrared temperature measuring sensor is higher than a set critical value, the air door is closed in a delayed mode, and safe passing of personnel or vehicles is guaranteed.
Further, the opening and closing rules of the automatic air door are specifically as follows:
1) The infrared correlation sensor is triggered, the infrared temperature sensor does not alarm, and the air door is closed;
2) The infrared correlation sensor is triggered, the infrared temperature sensor alarms, and the air door is opened;
3) And the infrared temperature sensor alarms, the infrared correlation sensor is not triggered, and the air door delay closing program is started until the alarm signal of the infrared temperature sensor is released, and the air door is closed.
Further, the damper is provided with two paths, wherein when one of the dampers is opened, the other damper must be in a closed state.
Scheme two, an automatic air door control system based on dual type infrared sensor, this control system includes signal detection module, coordinated control module, signal output module and signal processor. The linkage control module is respectively connected with the signal output module and the signal processor; the signal detection module is connected with the signal processor.
The signal detection module comprises an infrared correlation sensor and an infrared temperature measurement sensor. The infrared correlation sensor and the infrared temperature sensor are respectively connected with the signal processor.
The signal output module comprises a loudspeaker and a signal lamp, and the loudspeaker and the signal lamp are connected with the linkage control module.
Optionally, the infrared correlation sensor is installed on the wall body of air door both sides in opposite directions, and infrared light source transmitting end and infrared light source receiving end's axis coincidence.
Optionally, the horizontal distance between the mounting position of the infrared correlation sensor and the damper is greater than the maximum turning radius of the damper, while the vertical mounting height of the infrared correlation sensor is in the range of 1 to 1.5m.
Optionally, an infrared temperature sensor is mounted directly above the damper.
The invention has the beneficial effects that: according to the invention, the infrared sensor is adopted to sense the infrared light source and the infrared temperature near the air door, false triggering caused by a single detection mode is avoided, the space sensing capability of the automatic air door is improved, meanwhile, the opening and closing rules of the air door are set by combining the detection information of the infrared correlation sensor and the infrared temperature sensor, the automatic control of the air door is realized, the occurrence of accidents of clamping people and vehicles is avoided, and the safety and reliability of the operation of the automatic air door are improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic block diagram of an automatic damper control system;
FIG. 2 is a schematic diagram of an automatic damper configuration.
Reference numerals: 1-an infrared light source emitting end; 2-an infrared light source receiving end; 3-infrared temperature sensor.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
As shown in fig. 1, the control system of the automatic air door based on the dual-type infrared sensor comprises a signal detection module, a linkage control module, a signal output module and a signal processor.
The signal detection module comprises an infrared correlation sensor and an infrared temperature measurement sensor. The infrared correlation sensor is used for detecting the change of the near infrared light source attached to the air door, the infrared temperature sensor is used for detecting the change of the near infrared temperature attached to the air door, and the detection signal is transmitted to the signal processing device.
The signal processor is used for classifying, storing and preprocessing sensor signals, wherein the signal preprocessing comprises signal noise filtering, signal calibration, temperature compensation and the like, and the processed detection signals are directly transmitted to the linkage control module.
The linkage control module mainly analyzes and judges the logic association of the data of the infrared correlation sensor and the infrared temperature sensor, and sends a control instruction to the automatic air door, and the air door control rule comprises air door opening, air door closing and air door delay closing.
The signal output module comprises a loudspeaker and a signal lamp, and both are connected with the linkage control module. The signal lamp and the loudspeaker are used cooperatively, when the linkage control module judges that a person or a vehicle passes through the air door, the loudspeaker and the signal lamp are started, the person or the vehicle is reminded to pass through by voice, safety is noted, and meanwhile, the signal lamp displays green; when no person or vehicle passes through the air door, the voice does not alarm, and the signal lamp displays red.
The installation positions of the infrared correlation sensor and the infrared temperature measurement sensor are shown in fig. 2. The infrared correlation sensor consists of an infrared light source transmitting end and an infrared light source receiving end, wherein the transmitting end and the receiving end are oppositely arranged on the wall bodies on two sides of the air door, and the axis of the transmitting end and the axis of the receiving end are coincident. In addition, considering the passing safety of personnel or vehicles, the horizontal distance between the installation position of the infrared correlation sensor and the air door is larger than the maximum turning radius of the air door at one side, and the vertical installation height of the infrared correlation sensor is 1-1.5 m. The infrared temperature sensor is arranged right above each door.
The linkage control module automatically controls the air door through a set logic rule, wherein the air door control rule comprises air door opening, air door closing and air door delay closing.
The signal output module comprises a loudspeaker and a signal lamp, and both are connected with the linkage control module. The signal lamp and the loudspeaker are used cooperatively, when the linkage control module judges that a person or a vehicle passes through the air door, the loudspeaker and the signal lamp are started, the person or the vehicle is reminded to pass through by voice, safety is noted, and meanwhile, the signal lamp displays green; when no person or vehicle passes through the damper, the speaker is deactivated and the signal light displays a red color.
Based on the control system, the control method of the automatic air door comprises the following steps: information near the damper is sensed through the double-type infrared sensor, and the double-type infrared sensor comprises an infrared correlation sensor and an infrared temperature sensor: judging whether a person or a vehicle passes through the air door or not through the infrared beam of the infrared correlation sensor, and opening the air door when the infrared beam is shielded and the infrared correlation sensor is triggered; otherwise, the air door is closed; the infrared temperature sensor senses the temperature change near the air door, and when the temperature detected by the infrared temperature sensor is higher than a set critical value, the infrared temperature sensor alarms, the air door is closed in a delayed manner, and the safe passing of personnel or vehicles is ensured.
The automatic opening and closing rule of the air door is specifically as follows:
when the infrared light source transmitting end 1 is shielded, the infrared light source receiving end 2 is triggered to alarm, and if the infrared temperature measuring sensor 3 does not alarm, the air door is closed;
when the infrared light source transmitting end 1 is shielded, the infrared light source receiving end 2 is triggered to alarm, and if the infrared temperature sensor 3 also gives an alarm, the air door is opened;
when the infrared temperature sensor 3 alarms and the infrared correlation sensor is not triggered, the air door delay closing program is started until the alarm signal of the infrared temperature sensor 3 is released, and the air door is closed.
In order to prevent wind flow short circuit caused by opening of the air doors when people and vehicles pass, two automatic air doors are arranged, when one air door is opened, the other air door is in a closed state, specifically, the time of the two air doors sending out a door opening program is taken as a criterion, one air door is preferentially opened until the alarm signal of an infrared temperature sensor of the air door disappears, and the other air door restarts the door opening program.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. An automatic air door control method based on infrared dual-type sensor is characterized in that: detecting whether a person or a vehicle passes through the air door or not through an infrared correlation sensor and an infrared temperature measurement sensor respectively, and detecting temperature change near the air door; when the infrared correlation sensor detects that a person or a vehicle passes through the air door, the air door is opened, otherwise, the air door is closed; when the temperature detected by the infrared temperature measuring sensor is higher than a set critical value, the air door is closed in a delayed mode, and safe passing of personnel or vehicles is guaranteed.
2. The automatic damper control method of claim 1, wherein: the automatic throttle opening and closing rules are specifically as follows:
1) The infrared correlation sensor is triggered, the infrared temperature sensor does not alarm, and the air door is closed;
2) The infrared correlation sensor is triggered, the infrared temperature sensor alarms, and the air door is opened;
3) And the infrared temperature sensor alarms, the infrared correlation sensor is not triggered, and the air door delay closing program is started until the alarm signal of the infrared temperature sensor is released, and the air door is closed.
3. The automatic damper control system of claim 2, wherein: the damper is provided with two paths, wherein when one damper is opened, the other damper is in a closed state.
4. An automatic damper control system based on dual-type infrared sensors for implementing the automatic damper control method according to any one of claims 1 to 3, characterized in that: the control system comprises a signal detection module, a linkage control module, a signal output module and a signal processor; the linkage control module is respectively connected with the signal output module and the signal processor; the signal detection module is connected with the signal processor;
the signal detection module comprises an infrared correlation sensor and an infrared temperature measurement sensor; the infrared correlation sensor and the infrared temperature measurement sensor are respectively connected with the signal processor; the signal output module comprises a loudspeaker and a signal lamp, and the loudspeaker and the signal lamp are connected with the linkage control module.
5. The automatic damper control system of claim 4, wherein: the infrared correlation sensors are installed on the wall bodies on two sides of the air door in opposite directions, and the axes of the infrared light source transmitting end and the infrared light source receiving end coincide.
6. The automatic damper control system of claim 5, wherein: the horizontal distance between the installation position of the infrared correlation sensor and the air door is larger than the maximum turning radius of the air door, and the vertical installation height range of the infrared correlation sensor is 1-1.5 m.
7. The automatic damper control system of claim 4, wherein: the infrared temperature sensor is arranged right above the air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310076259.3A CN116006240A (en) | 2023-01-18 | 2023-01-18 | Automatic air door control method and system based on dual-type infrared sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310076259.3A CN116006240A (en) | 2023-01-18 | 2023-01-18 | Automatic air door control method and system based on dual-type infrared sensor |
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| Publication Number | Publication Date |
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| CN116006240A true CN116006240A (en) | 2023-04-25 |
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|---|---|---|---|
| CN202310076259.3A Pending CN116006240A (en) | 2023-01-18 | 2023-01-18 | Automatic air door control method and system based on dual-type infrared sensor |
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| CN (1) | CN116006240A (en) |
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2023
- 2023-01-18 CN CN202310076259.3A patent/CN116006240A/en active Pending
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