Indoor intelligent CO concentration detection and alarm processing system and method

Abstract

An indoor intelligent CO concentration detection and alarm processing system disclosed by the present invention comprises a detection module and an air exchange module which are installed indoors, the air exchange module is provided with an extraction opening and an air exchange opening, and the detection module internally comprises a battery, a display screen, a buzzer, a controller, a wireless module and an air detection unit. The battery supplies power to the display screen, the buzzer, the controller, the wireless module and the air detection unit, the air detection unit collects detection parameters and transmits the detection parameters to the controller, the signal output end of the controller is connected with the display screen and the buzzer, and the controller communicates with the communication module of the ventilation module through the wireless module. According to the system, when indoor air has risks, CO can be pumped out of the room, and external fresh air is fed in, so that the indoor CO concentration is reduced, and the safety standard is met.

Description

Technical Field

[0001] The invention relates to the technical field of safety alarms. Background Art

[0002] With the development and progress of society, various energy sources have been developed and used by people. However, while some energy sources bring convenience to life, they may also bring hidden dangers and disasters. At present, the use of combustible gas has involved all aspects of life, especially for rural areas. The use of new energy can reduce environmental pollution and bring great convenience to people's lives. However, in actual use, there may be great safety hazards in the process of using gas due to inadequate safety precautions.

[0003] There are many kinds of flammable gases, such as hydrogen, carbon monoxide, methane, etc. These gases may burn or even explode when encountering strong sparks or flames, generating huge noise and shock waves, endangering the safety of life and property. And when people are in a confined space with gas leakage for a long time, it will cause breathing difficulties, cardiac arrest, and even death. Therefore, monitoring the concentration of carbon monoxide is very important and essential.

[0004] For example, the public document with announcement number CN209280547U, publication date August 20, 2019, and patent name "An Indoor Formaldehyde Detection Device" discloses an indoor formaldehyde detection device, including a detection box, in which an analysis box is embedded; the analysis box includes a shell, a detection box and a temperature control box, the detection box is provided with a reagent detection chamber, the temperature control box is provided with a temperature control chamber, and the reagent detection chamber and the temperature control chamber are covered with a cover plate. Monitoring the CO concentration alone can only treat the symptoms but not the root cause. Without the treatment of indoor CO, it is crucial to extract the indoor CO concentration and replace it with fresh air. Summary of the invention

[0005] The technical problem to be solved by the present invention is to realize a system which can monitor the CO concentration and give an alarm, and can also extract the indoor CO gas and replace the indoor environmental gas with fresh air to ensure the personal safety of indoor residents.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an indoor intelligent CO concentration detection and alarm processing system, the system includes a detection module and a ventilation module installed indoors, the ventilation module is provided with an air suction port and a ventilation port, the air suction port and the ventilation port are respectively connected to the outdoors through pipes, the air suction port is provided with a fan for exhausting air outwards, the ventilation port is provided with a fan for exhausting air inwards, the fans are connected to the processor in the ventilation module control box, the control box is fixed on the wall, the surface of the control box is provided with a display screen and control buttons connected to the processor, the control box is provided with a communication module, the detection module internally includes a battery, a display screen, a buzzer, a controller, a wireless module and an air detection unit, the battery is used to power the display screen, the buzzer, the controller, the wireless module and the air detection unit, the air detection unit collects detection parameters and transmits them to the controller, the signal output end of the controller is connected to the display screen and the buzzer, and the controller communicates with the communication module of the ventilation module through the wireless module.

[0007] An alarm is arranged in the control box, and the alarm is connected to the processor.

[0008] Electric valves are arranged in the pipelines, and the processor is connected to and outputs driving signals to the electric valves.

[0009] The distance between the air extraction port and the ventilation port is greater than 5 meters. The air extraction port is installed above the room, and the ventilation port is installed below the room.

[0010] A key area is provided in the detection module, and the operation instructions of the key area are transmitted to the ventilation module through the wireless module.

[0011] The air detection unit adopts MQ-2 type smoke sensor, and the controller and processor adopt AT89C52 type single chip microcomputer.

[0012] The detection module is a rectangular parallelepiped shell, and the ventilation module is equipped with 1-4 detection modules. Each of the detection modules is provided with a charging port for connecting a battery and charging the battery.

[0013] A processing method based on the indoor intelligent CO concentration detection and alarm processing system: when the detection module is turned on, it interacts with the ventilation module, and an alarm is issued if the interaction fails;

[0014] If the interaction is successful, the information is exchanged regularly;

[0015] When the detection module finds that the CO concentration exceeds the standard, it sends an alarm signal to the ventilation module. The detection module and the ventilation module alarm at the same time, and the ventilation module starts the ventilation mode.

[0016] When the detection module fails or is powered on, the ventilation module alarms and needs to be manually canceled.

[0017] The ventilation module is provided with a search function button. When the search function is started, the ventilation module sends a search instruction to the detection module, and the buzzer of the detection module is started.

[0018] The system of the present invention can extract CO from the room when there is a risk in the indoor air, and send in fresh air from the outside, so as to reduce the indoor CO concentration and meet the safety standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents expressed in each figure in the specification of the present invention and the marks in the figure:

[0020] Figure 1 This is a structural diagram of the indoor intelligent CO concentration detection and alarm processing system;

[0021] The marks in the above figures are: 1. Air extraction port; 2. Ventilation port; 3. Display screen; 4. Control button; 5. Buzzer; 6. Detection module. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation methods of the present invention, such as the shape, structure, relative position and connection relationship between the various components involved, the function and working principle of each part, the manufacturing process and operation method, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0023] The indoor intelligent CO concentration detection and alarm processing system includes two parts, namely, a detection module 6 installed indoors and a ventilation module, wherein the overall structure of the ventilation module is similar to that of an existing indoor ventilation device, including an air extraction port 1 and an air exchange port 2, one for extracting air and the other for inhaling air, to ensure smooth indoor air supply. In order to avoid interference between the two air ports, the distance between the air extraction port 1 and the air exchange port 2 is greater than 5 meters. Preferably, the air extraction port 1 is installed above the room and the air exchange port 2 is installed below the room to ensure sufficient air flow indoors. The air extraction port 1 and the air exchange port 2 are connected to the outdoors through pipes respectively, and the external air ports also need to be set at different positions, that is, the external environment for exhaust and the external environment for ventilation are not in the same place to avoid the extracted CO gas being sucked into the room again.

[0024] The exhaust port 1 is provided with a fan for exhausting air outwards, and the ventilation port 2 is provided with a fan for extracting air inwards. Both fans are connected to the processor in the ventilation module control box. The control box is a control panel fixed to the indoor wall, similar to a switch panel, which is internally connected to the mains power and supplies power to the two fans. The surface of the control box is provided with a display screen 3 and control buttons 4 connected to the processor. The control buttons 4 include a power switch, a wind speed switch, a ventilation switch, an exhaust switch, an alarm switch, etc., which can be turned off and on at any time. The density of CO is smaller than that of air and it generally floats above the air. Therefore, the exhaust valve is placed on the top and the ventilation valve is placed on the bottom during design, so as to extract as little air as possible and as much CO as possible. It can be used for indoor ventilation, and it can also actively start ventilation and sound an alarm when the CO concentration is too high.

[0025] In addition, electric valves are installed in the pipelines. The processor is connected and outputs driving signals to the electric valves. The switch of the pipelines can be controlled through the control panel, and the channels can be selectively opened or closed to ensure the sealing of the room when necessary.

[0026] A communication module is provided in the control box, and the communication module is used for wireless communication with the detection module 6, so that the detection module 6 can be placed at a desired position to improve the sensitivity of detection. For example, when boiling tea around a stove indoors, the detection module 6 can be placed near the fire to improve the accuracy of detection of the entire device. The detection module 6 includes a battery, a display screen 3, a buzzer 5, a controller, a wireless module and an air detection unit. The battery supplies power to the display screen 3, the buzzer 5, the controller, the wireless module and the air detection unit. The air detection unit collects detection parameters and transmits them to the controller. The signal output end of the controller is connected to the display screen 3 and the buzzer 5. The controller communicates with the communication module of the ventilation module through the wireless module.

[0027] The air detection unit is used to detect indoor air. It uses an MQ-2 smoke sensor. The gas-sensitive element of the MQ-2 smoke sensor is made of tin dioxide. When carbon monoxide is detected, the conductivity will change, and the carbon monoxide concentration will be converted into a corresponding electrical signal through a conversion circuit. The controller selects the AT89C52 single-chip microcomputer, and the display screen 3 selects the LCD1602 liquid crystal display unit. The voltage signal detected by the sensor is converted to digital through ADC0832, and then the signal is analyzed, processed and converted, and the detected carbon monoxide concentration is displayed through the LCD1602 liquid crystal display unit. If the detected value is greater than the set upper limit of the sensor, the alarm will be triggered. The 16-pin LCD1602 liquid crystal display unit can display 3 lines of data. The first line displays the CO concentration value, the second line displays the wind speed intensity, and the third line displays the alarm and ventilation status.

[0028] The detection module 6 is a rectangular shell, which is similar in size to a remote control. It can be used for remote control of ventilation and can also be placed anywhere as a detection point. Therefore, the ventilation module is equipped with 1-4 detection modules 6, which can be placed in different positions as needed. Each detection module 6 is provided with a charging port for connecting a battery and charging the battery, so that it can be charged when there is no electricity.

[0029] This system can detect the carbon monoxide concentration in a closed environment and has a corresponding alarm processing function. If the CO concentration exceeds 50ppm, the alarm will sound for 5 minutes and start the exhaust switch. If the CO concentration reaches 80ppm, the alarm will continue to sound and the exhaust switch and ventilation switch will be turned on together.

[0030] During specific control, the detection module 6 needs to be manually turned on, and then the user can put it in any desired position. When the detection module 6 is turned on, it interacts with the ventilation module. This is a confirmation to ensure that the connection between the detection module 6 and the ventilation module is normal, and there needs to be a feedback prompt after the normal connection. If it is not mentioned, it means that the connection has failed and the user needs to perform maintenance. When the initial connection is normal, the detection module 6 and the ventilation module will exchange information once at a certain interval, such as once every 10 seconds. When the ventilation module is connected to one or more detection modules 6, if the interval exceeds 10 seconds and the signal of a detection module 6 is not received, an alarm will be issued to allow the user to check in time. Of course, if the detection module 6 is turned off, a closing command will also be sent to the ventilation module to avoid a false alarm due to failure to receive the signal of the detection module 6.

[0031] At the same time, the interactive information also includes the working status signal of the detection module, such as power supply, abnormality, failure, etc. If the ventilation module receives these signals, it will alarm and need to be manually canceled. The alarm can be made once at a certain interval to avoid long-term alarms disturbing people when no one is at home. Using the ventilation module alarm can also avoid the detection module 6 from being powered on due to the alarm.

[0032] When the detection module finds that the CO concentration exceeds the standard, it sends an alarm signal to the ventilation module. The detection module 6 and the ventilation module alarm at the same time, and the ventilation module starts the ventilation mode. The alarm of the detection module 6 can easily find the abnormal location point, especially when multiple detection modules 6 are monitoring at the same time, the alarm of the ventilation module can avoid the problem of inability to continuously alarm due to power supply of the detection module 6.

[0033] Because the detection module 6 is a small item, it may be difficult to find it when not in use. Therefore, a search function button is provided on the ventilation module. When the search function is activated, the ventilation module sends a search instruction to the detection module, and the buzzer of the detection module is activated. The user can find the detection module 6 by sound.

[0034] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An indoor intelligent CO concentration detection and alarm processing system, the system includes a detection module and a ventilation module installed indoors, the ventilation module is provided with an air suction port and a ventilation port, the air suction port and the ventilation port are respectively connected to the outdoors through pipelines, the air suction port is provided with a fan for exhausting air outwards, the ventilation port is provided with a fan for exhausting air inwards, the fans are connected to a processor in a ventilation module control box, the control box is fixed on a wall, the control box surface is provided with a display screen and control buttons connected to the processor, characterized in that: A communication module is provided in the control box, and the detection module includes a battery, a display screen, a buzzer, a controller, a wireless module and an air detection unit. The battery supplies power to the display screen, the buzzer, the controller, the wireless module and the air detection unit. The air detection unit collects detection parameters and transmits them to the controller. The signal output end of the controller is connected to the display screen and the buzzer. The controller communicates with the communication module of the ventilation module through the wireless module.

2. The indoor intelligent CO concentration detection and alarm processing system according to claim 1 is characterized in that: An alarm is arranged in the control box, and the alarm is connected to the processor.

3. The indoor intelligent CO concentration detection and alarm processing system according to claim 2 is characterized in that: Electric valves are arranged in the pipelines, and the processor is connected to and outputs driving signals to the electric valves.

4. The indoor intelligent CO concentration detection and alarm processing system according to claim 3 is characterized in that: The distance between the air extraction port and the ventilation port is greater than 5 meters. The air extraction port is installed above the room, and the ventilation port is installed below the room.

5. The indoor intelligent CO concentration detection and alarm processing system according to any one of claims 1 to 4, characterized in that: A key area is provided in the detection module, and the operation instructions of the key area are transmitted to the ventilation module through the wireless module.

6. The indoor intelligent CO concentration detection and alarm processing system according to claim 5 is characterized in that: The air detection unit adopts MQ-2 type smoke sensor, and the controller and processor adopt AT89C52 type single chip microcomputer.

7. The indoor intelligent CO concentration detection and alarm processing system according to claim 6 is characterized in that: The detection module is a rectangular parallelepiped shell, and the ventilation module is equipped with 1-4 detection modules. Each of the detection modules is provided with a charging port for connecting a battery and charging the battery.

8. The processing method of the indoor intelligent CO concentration detection and alarm processing system according to any one of claims 1 to 7, characterized in that: When the detection module is turned on, it interacts with the ventilation module. If the interaction fails, an alarm is issued; If the interaction is successful, the information is exchanged regularly; When the detection module finds that the CO concentration exceeds the standard, it sends an alarm signal to the ventilation module. The detection module and the ventilation module alarm at the same time, and the ventilation module starts the ventilation mode.

9. The processing method according to claim 8, characterized in that: When the detection module fails or is powered on, the ventilation module alarms and needs to be manually canceled.

10. The processing method according to claim 8, characterized in that: The ventilation module is provided with a search function button. When the search function is started, the ventilation module sends a search instruction to the detection module, and the buzzer of the detection module is started.

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