CN113805491A

CN113805491A - Laboratory safety intelligent system

Info

Publication number: CN113805491A
Application number: CN202111076453.9A
Authority: CN
Inventors: 黄运米; 赵吕凝; 程钰渲; 汪子涵; 涂洪智; 陈诺
Original assignee: Wenzhou University
Current assignee: Wenzhou University
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2021-12-17
Anticipated expiration: 2041-09-14
Also published as: CN113805491B

Abstract

The invention discloses a laboratory safety intelligent system, which comprises: controller as control center: the automatic door closing module is connected with the controller and can control the door to be closed when detecting that no one exists in the laboratory; the automatic window closing module is connected with the controller and can control the window to be closed after rainwater is detected; the remote light-turning-off module is in communication connection with the controller and can turn off the light remotely when detecting that no person exists in the laboratory; and the flame alarm module is connected with the controller and gives an alarm after detecting flame. The invention has the following advantages and effects: the functions of unmanned automatic door closing, door and window closing detection, remote door closing control, rainwater detection, automatic window closing, remote lamp closing and flame alarm can be realized; through with each function automation to can realize remote control, combine door and window lamp's self-closing ingenious.

Description

Laboratory safety intelligent system

Technical Field

The invention relates to the technical field of laboratory safety, in particular to a laboratory safety intelligent system.

Background

Students in school teaching are the main subjects of education, and are the most important manual skills in laboratories. The physics is a discipline with particularly strong practicality, and the colleges and universities in China are almost equipped with physical laboratories, aiming at enabling students to better understand corresponding knowledge of the physics through practice and providing a platform for scientific research work of teachers and students in the schools.

The college laboratory is an important place of main position and scientific research work of college experimental teaching, and has the characteristics of multiple types of instruments, equipment and materials, large quantity of participating experimenters, heavy experimental teaching task, complex potential safety hazard and risk and the like, but the safety monitoring problem is not sufficiently emphasized in many colleges, many colleges pay more attention to scientific research and teaching work of the colleges, and safety management work of the laboratory is neglected, so that the laboratory becomes a place with frequent safety accidents.

In the practical use process of a laboratory, the following hidden dangers exist: rainwater enters a laboratory due to untimely window closing, so that a laboratory instrument is wetted, and even the instrument is damaged; the unclosed door causes the loss of experimental instruments or other financial affairs, and the irrelevant personnel enter the laboratory to cause accidental damage; not turning off the lamp for a long time is also an unnecessary loss for the laboratory; accidents such as fire are even more possible disasters that have to be prevented. If the daily patrol and the inspection of the door and window lamps are carried out manually, a large amount of time and energy are consumed for a huge laboratory building and a large number of laboratories, and a large number of windows inevitably become the possibility of omission. And because the working time of the researchers belonging to different laboratories is different, the off-duty time is difficult to synchronize and cannot be compulsorily regulated, and if a specially-assigned person carries out patrol, the problems that all laboratories cannot be checked, the off-duty time of an administrator is late and unfixed, repeated check is needed and the like exist.

Disclosure of Invention

The invention aims to provide a laboratory safety intelligent system to solve the problems in the background technology.

The technical purpose of the invention is realized by the following technical scheme: an intelligent laboratory safety system, comprising:

controller as control center:

the automatic door closing module is connected with the controller and can control the door to be closed when detecting that no one exists in the laboratory;

the automatic window closing module is connected with the controller and can control the window to be closed after rain water is detected;

the remote light-turning-off module is in communication connection with the controller and can turn off the light remotely when detecting that no person exists in the laboratory;

the flame alarm module is connected with the controller and gives an alarm after detecting flame;

the automatic door closing module comprises a steering engine, the steering engine is fixedly arranged in a laboratory behind a door, a transverse push rod is fixedly arranged on an output shaft of the steering engine, and the push rod can be driven by the steering engine to rotate so as to achieve the purpose of pushing the door to close; the door is fixedly provided with a first magnet, a first Hall sensor is fixedly arranged near the door, and when the door is closed, the first magnet on the door is close to the first Hall sensor, so that the closing condition of the door is detected by the first Hall sensor; a human body infrared sensor is fixedly arranged near the door, faces the laboratory, and achieves the purpose of unmanned detection in the laboratory through the human body infrared sensor;

the steering engine, the first Hall sensor and the human body infrared sensor are respectively connected with the controller;

the device also comprises a temperature sensor, a humidity sensor and a smoke sensor which are arranged in the laboratory and are respectively connected with the controller.

The further setting is that: the automatic window closing module comprises a screw rod arranged above a window, the screw rod is limited in a bearing seat fixed on a wall and is connected with a stepping motor fixed on the wall through a connecting piece, and the stepping motor drives the screw rod to rotate; the nut is arranged on the screw rod, and the lower end of the nut is provided with a limiting rod to remove the self-rotation of the nut and enable the nut to be used as a push block to move along the screw rod; a fixed block is fixedly arranged at the edge of the upper end of the window, and the nut can prop against the fixed block under the transmission of the screw rod so as to push the window to be closed;

a second magnet is fixedly arranged at the side edge of the window, a second Hall sensor is fixedly arranged on a wall at the side of the window, and when the window is closed, the second magnet on the window is close to the second Hall sensor, so that the closing condition of the window is detected through the second Hall sensor;

a waterproof plate provided with a raindrop sensor is fixedly arranged outside the wall, and raindrop detection is realized through the waterproof plate;

the stepping motor, the second Hall sensor and the raindrop sensor are respectively connected with the controller.

The further setting is that: the nut is provided with a third magnet, a third Hall sensor is fixedly arranged on a wall beside the window, the third Hall sensor and the second Hall sensor are respectively positioned on the walls at two sides of the window, and the return detection of the nut is realized through the third Hall sensor;

and the third Hall sensor is connected with the controller.

The further setting is that: the remote light-turning-off module comprises a Bluetooth module, the controller is connected with the Bluetooth module and realizes communication with the mobile terminal through the Bluetooth module, and the controller is connected with the lamp in the laboratory to realize remote light-turning-off.

The further setting is that: the flame alarm module comprises a flame sensor and a buzzer which are respectively connected with the controller.

The invention has the beneficial effects that:

the automatic door closing system has the advantages that the functions of unmanned automatic door closing, door and window closing detection, remote door closing control, rainwater detection, automatic window closing, remote lamp closing and flame alarm are realized by arranging the controller, the automatic door closing module, the automatic window closing module, the remote lamp closing module and the flame alarm module; through with each function automation to can realize remote control, combine door and window lamp's self-closing ingenious. The invention has the advantages of simple operation, high automation degree, stable system operation and wide device application range. Through tests, the invention can be better adapted to the environment in various laboratories and has higher universality.

Drawings

FIG. 1 is a first schematic structural diagram of an embodiment;

FIG. 2 is a second schematic structural diagram of the embodiment;

FIG. 3 is a third schematic structural view of the embodiment;

fig. 4 is a functional block diagram of an embodiment.

In the figure: 991. a controller; 992. an automatic door closing module; 993. an automatic window closing module; 994. a remote light-off module; 995. a flame alarm module; 15. a steering engine; 13. a push rod; 91. a first magnet; 81. a first Hall sensor; 12. a human body infrared sensor; 4. a screw rod; 1. a bearing seat; 5. a connecting member; 6. a stepping motor; 2. a nut; 10. a fixed block; 92. a second magnet; 82. a second Hall sensor; 7. a waterproof sheet; 83. a third Hall sensor; 9931. a raindrop sensor; 9941. a Bluetooth module; 18. a flame sensor; 9951. a buzzer; 3. a lamp; 17. a floor; 11. a door; 14. a hinge; 996. a temperature sensor; 997. a humidity sensor; 998. a smoke sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, an intelligent laboratory safety system includes:

controller 991 as a control center:

an automatic door closing module 992 connected to the controller 991 and controlling the door 11 to close when no person is detected in the laboratory;

an automatic window closing module 993 connected to the controller 991 and controlling the window to be closed when rain water is detected;

a remote light-off module 994 which is in communication connection with the controller 991 and can remotely turn off the light 3 when detecting that no person is in the laboratory;

and a flame alarm module 995 connected to the controller 991 and alarming upon detection of a flame.

For ease of viewing the figures, the door 11, the light 3 and the floor 17 are marked in figures 1 and 2, and the door 11 is pivotally mounted to the wall by means of hinges 14.

The automatic door closing module 992 comprises a steering engine 15, the steering engine 15 is fixedly arranged in a laboratory behind the door 11, a transverse push rod 13 is fixedly arranged on an output shaft of the steering engine 15, and the push rod 13 can be driven by the steering engine 15 to rotate so as to achieve the purpose of pushing the door 11 to close; a first magnet 91 is fixedly arranged on the door 11, a first Hall sensor 81 is fixedly arranged near the door 11, and when the door 11 is closed, the first magnet 91 on the door 11 is close to the first Hall sensor 81, so that the closing condition of the door 11 is detected by the first Hall sensor 81; a human body infrared sensor 12 is fixedly arranged near the door 11, the human body infrared sensor 12 faces the laboratory, and the purpose of unmanned detection in the laboratory is achieved through the human body infrared sensor 12; the human body infrared sensor 12 may be placed on the floor 17.

The steering engine 15, the first Hall sensor 81 and the human body infrared sensor 12 are respectively connected with the controller 991;

the device also comprises a temperature sensor 996, a humidity sensor 997 and a smoke sensor 998 which are arranged in the laboratory and are respectively connected with the controller 991.

Specifically, when the door 11 is closed, the first magnet 91 on the door 11 is close to the first hall sensor 81, and a magnetic field exists, and a high-level signal is reported; if the door 11 is not fully closed, the opposite is true; whether the gate 11 is closed is determined by detecting the high or low of the output level signal.

The automatic window closing module 993 comprises a screw rod 4 arranged above a window, the screw rod 4 is limited in a bearing seat 1 fixed on a wall and is connected with a stepping motor 6 fixed on the wall through a connecting piece 5, and the stepping motor 6 drives the screw rod 4 to rotate; the screw rod 4 is provided with a nut 2, and the lower end of the nut 2 is provided with a limiting rod to remove the self rotation of the nut 2 and enable the nut 2 to be used as a push block to move along the screw rod 4; a fixed block 10 is fixedly arranged at the upper end edge of the window, and the nut 2 can prop against the fixed block 10 under the transmission of the screw rod 4 so as to push the window to close;

a second magnet 92 is fixedly arranged at the lateral edge of the window, a second hall sensor 82 is fixedly arranged on the wall at the lateral side of the window, and when the window is closed, the second magnet 92 on the window is close to the second hall sensor 82, so that the closing condition of the window is detected through the second hall sensor 82;

a waterproof plate 7 provided with a raindrop sensor 9931 is fixedly arranged outside the wall, and raindrop detection is realized through the waterproof plate 7;

the stepping motor 6, the second hall sensor 82, and the raindrop sensor 9931 are connected to the controller 991, respectively.

Specifically, the controller 991 determines whether the window is closed by detecting the high or low of the output level signal. The window is gradually closed, and when the second hall sensor 82 just senses that a signal is within a set value range at the moment when the window is completely closed, the stepping motor 6 starts to rotate reversely, and drives the nut 2 to move back.

The nut 2 is provided with a third magnet, a third Hall sensor 83 is fixedly arranged on a wall on the side of the window, the third Hall sensor 83 and the second Hall sensor 82 are respectively positioned on the walls on the two sides of the window, and the return detection of the nut 2 is realized through the third Hall sensor 83;

the third hall sensor 83 is connected to the controller 991.

Specifically, when the nut 2 returns to the home position, the third hall sensor 83 in the home position receives the voltage signal, and the stepping motor 6 stops rotating.

The remote light-off module 994 comprises a Bluetooth module 9941, the controller 991 is connected with the Bluetooth module 9941 and communicates with the mobile terminal through the Bluetooth module 9941, and the controller 991 is connected with the lamp 3 in the laboratory to realize remote light-off 3; the controller 991 may also effect turning off the lamp 3 by cutting off the power supply line for the lamp 3.

The flame alarm module 995 includes, among other things, a flame sensor 18 and a buzzer 9951 that are connected to the controller 991, respectively.

Specifically, when a flame is ignited in a laboratory setting, the flame sensor 18 senses infrared light and converts it into a current signal, which is further compared with a value set in advance in a digital quantity. The flame sensor 18 reports a flame and triggers the buzzer 9951 to sound an alarm.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A laboratory safety intelligent system is characterized by comprising:

controller (991) as a control center:

an automatic door closing module (992) which is connected with the controller (991) and can control the door to be closed when detecting that no one is in the laboratory;

an automatic window closing module (993) which is connected with the controller (991) and can control the window to be closed after rain water is detected;

the remote light-off module (994) is in communication connection with the controller (991) and can remotely turn off the light when detecting that no person exists in the laboratory;

and a flame alarm module (995) connected to the controller (991) and alarming upon detection of a flame;

the automatic door closing module (992) comprises a steering engine (15), the steering engine (15) is fixedly arranged in a laboratory behind a door, a transverse push rod (13) is fixedly arranged on an output shaft of the steering engine (15), and the push rod (13) can be driven by the steering engine (15) to rotate so as to achieve the purpose of pushing the door to close; a first magnet (91) is fixedly arranged on the door, a first Hall sensor (81) is fixedly arranged near the door, when the door is closed, the first magnet (91) on the door is close to the first Hall sensor (81), and therefore the closing condition of the door is detected through the first Hall sensor (81); a human body infrared sensor (12) is fixedly arranged near the door, the human body infrared sensor (12) faces the laboratory, and the purpose of unmanned detection in the laboratory is achieved through the human body infrared sensor (12);

the steering engine (15), the first Hall sensor (81) and the human body infrared sensor (12) are respectively connected with the controller (991);

the device also comprises a temperature sensor (996), a humidity sensor (997) and a smoke sensor (998) which are arranged in the laboratory and are respectively connected with the controller (991).

2. The intelligent laboratory safety system of claim 1, wherein: the automatic window closing module (993) comprises a screw rod (4) arranged above a window, the screw rod (4) is limited in a bearing seat (1) fixed on a wall and is connected with a stepping motor (6) fixed on the wall through a connecting piece (5), and the stepping motor (6) drives the screw rod (4) to rotate; the screw rod (4) is provided with a nut (2), and the lower end of the nut (2) is provided with a limiting rod to remove the rotation of the nut (2) and enable the nut (2) to be used as a push block to move along the screw rod (4); a fixed block (10) is fixedly arranged at the upper end edge of the window, and the nut (2) can prop against the fixed block (10) under the transmission of the screw rod (4) so as to push the window to be closed;

a second magnet (92) is fixedly arranged at the side edge of the window, a second Hall sensor (82) is fixedly arranged on a wall at the side of the window, when the window is closed, the second magnet (92) on the window is close to the second Hall sensor (82), so that the closing condition of the window is detected through the second Hall sensor (82);

a waterproof plate (7) provided with a raindrop sensor (9931) is fixedly arranged outside the wall, and raindrop detection is realized through the waterproof plate (7);

the stepping motor (6), the second Hall sensor (82) and the raindrop sensor (9931) are respectively connected with the controller (991).

3. The intelligent laboratory safety system of claim 2, wherein: a third magnet is arranged on the nut (2), a third Hall sensor (83) is fixedly arranged on a wall on the side of the window, the third Hall sensor (83) and the second Hall sensor (82) are respectively positioned on the walls on the two sides of the window, and the return detection of the nut (2) is realized through the third Hall sensor (83);

and the third Hall sensor (83) is connected with the controller (991).

4. The intelligent laboratory safety system of claim 1, wherein: remote lamp module (994) including bluetooth module (9941), controller (991) link to each other and realize with mobile terminal's communication through this bluetooth module (9941) with bluetooth module (9941), just controller (991) link to each other with the lamp in the laboratory to realize remote lamp of turning off.

5. The intelligent laboratory safety system of claim 1, wherein: the flame alarm module (995) comprises a flame sensor (18) and a buzzer (9951) which are respectively connected with the controller (991).