Dust monitoring ventilation system and monitoring equipment

Abstract

The invention provides a dust monitoring ventilation system and monitoring equipment, the dust monitoring ventilation system comprises a dust monitoring module, an alarm module, a debugging module and a data recording module, after the monitoring module collects dust concentration data in a measurement working area in real time, a preset safety threshold value is compared according to the data, and when the dust concentration data exceeds the preset safety threshold value, the dust monitoring ventilation system is started. When the dust content exceeds the standard, the alarm signal can be triggered, the control unit can adjust the air volume generated in the ventilation system, namely, when the dust content exceeds the standard, the dust concentration in the air can be effectively reduced in time, and compared with manual intervention, the device is quicker and more accurate, and the response speed is high; the working environment can be quickly recovered to the safety level, air containing high-concentration dust can be quickly discharged out of a working area by increasing the ventilation quantity, fresh air is introduced, and harm of the dust to health of workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of dust monitoring of ventilation systems, and in particular to a dust monitoring ventilation system and monitoring equipment. Background Art

[0002] The dust monitoring ventilation system is a comprehensive air treatment and monitoring system designed to ensure the safety and health of the air quality in the working area. The system integrates multiple components such as dust monitoring modules, ventilation equipment and intelligent control units to achieve real-time monitoring, alarm and ventilation adjustment of dust concentration in the working area. The dust monitoring ventilation system and monitoring equipment play an important role in ensuring the air quality in the working area, preventing dust pollution and protecting the health of personnel.

[0003] In existing dust monitoring ventilation systems and monitoring equipment, the monitoring equipment will first collect and measure the dust concentration in the working area. The staff will compare the monitored dust concentration value with the preset value. When the preset value is exceeded, the operation needs to be stopped manually. This process has a high time delay problem, especially in emergency situations. It may lead to insufficient response speed and inability to control dust pollution in time, increasing health and safety risks.

[0004] Therefore, it is necessary to provide a new dust monitoring ventilation system and monitoring equipment to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a dust monitoring ventilation system and monitoring equipment.

[0006] The dust monitoring ventilation system and monitoring equipment provided by the present invention include:

[0007] Dust monitoring module: collects and measures the dust concentration in the working area in real time, senses the number and size of suspended particles in the air, and converts them into digital signals;

[0008] Alarm module: Receives the digital signal of dust concentration detected by the dust monitoring module, and triggers an alarm signal when it exceeds the preset safety threshold;

[0009] Debugging module: including a control unit, which receives a digital signal of dust concentration detected by the dust monitoring module. When the dust concentration exceeds a preset safety threshold, the control unit adjusts the air volume generated in the ventilation system, wherein the control unit adjusts the speed of the fan by changing the input voltage or current of the fan, thereby changing the air volume of the ventilation system;

[0010] Data recording module: records the historical data of the digital signal of dust concentration detected by the dust monitoring module to facilitate subsequent long-term evaluation.

[0011] Furthermore, the acquisition module uses a high-precision dust sensor to sense the number and size of suspended particles in the ventilation system and converts them into digital signals.

[0012] Furthermore, the specific steps of the debugging module are as follows:

[0013] S1: The control unit receives the digital signal of dust concentration detected by the dust monitoring module;

[0014] S2: The control unit compares the received dust concentration data with the preset safety threshold;

[0015] S3: When the dust concentration exceeds the set safety threshold, the control unit issues a control command to adjust the ventilation system.

[0016] Furthermore, the specific steps of the dust concentration test are as follows:

[0017] S01: The high-precision dust sensor emits light into the air, and the light is scattered when it encounters suspended particles;

[0018] S02: The photodetector collects the scattered light signal and converts it into an electrical signal;

[0019] S03: amplifying and filtering the electrical signal;

[0020] S04: converting the amplified and filtered electrical signal into a digital signal through an analog-to-digital converter, and finally obtaining a digital signal value of dust concentration;

[0021] The filtering process of the electric signal in step S03 is performed by using a high-pass filter.

[0022] Furthermore, the data recording module receives the digital signal output by the dust monitoring module in real time, and stores the received digital signal in an internal memory or an external database.

[0023] Furthermore, the data recording module also includes data query and data export functions, so that staff can view and analyze historical data at any time.

[0024] A dust monitoring device is applied to the above-mentioned dust monitoring ventilation system, characterized in that it includes a monitoring body and a detection port arranged on the monitoring body, and the monitoring body is also provided with a connecting port.

[0025] Furthermore, a heat dissipation body is provided on one side of the monitoring body.

[0026] Compared with the related art, the dust monitoring ventilation system and monitoring equipment provided by the present invention have the following advantages:

[0027] Beneficial effects:

[0028] 1. After the monitoring module collects and measures the dust concentration data in the working area in real time, the data is compared with the preset safety threshold. When the preset safety threshold is exceeded, not only an alarm signal will be triggered, but also the control unit will be triggered. The control unit can adjust the air volume generated in the ventilation system. That is, when the dust content exceeds the standard, the dust concentration in the air can be reduced immediately and effectively. It is faster and more accurate than manual intervention, and the response speed is fast, so that the working environment can be quickly restored to a safe level. By increasing the ventilation volume, the air containing high-concentration dust can be quickly discharged from the working area, and fresh air can be introduced to reduce the harm of dust to the health of workers.

[0029] 2. Through the synchronization of timely alarm module and debugging module, the safe environment of the working area can be quickly restored, reducing downtime and business losses caused by excessive dust, which is more important in the working environment of production lines that need to run continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall structure of the dust monitoring ventilation system and monitoring equipment provided by the present invention;

[0031] Figure 2 A schematic diagram of a dust monitoring ventilation system and a monitoring device provided by the present invention from another perspective;

[0032] Figure 3 A system block diagram of the dust monitoring ventilation system provided by the present invention;

[0033] Figure 4 A specific operation flow chart of the debugging module provided by the present invention;

[0034] Figure 5 A specific operation flow chart of the dust concentration test provided by the present invention.

[0035] Numbers in the figure: 1. Monitoring body; 2. Heat dissipation body; 3. Connection port; 4. Detection port. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0037] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic diagram of the overall structure of the dust monitoring ventilation system and monitoring equipment provided by the present invention; Figure 2A schematic diagram of a dust monitoring ventilation system and a monitoring device provided by the present invention from another perspective; Figure 3 A system block diagram of the dust monitoring ventilation system provided by the present invention; Figure 4 A specific operation flow chart of the debugging module provided by the present invention; Figure 5 A specific operation flow chart of the dust concentration test provided by the present invention.

[0038] In the specific implementation process, Figure 1-Figure 5 As shown, a dust monitoring ventilation system comprises:

[0039] Dust monitoring module: collects and measures the dust concentration in the working area in real time, senses the number and size of suspended particles in the air, and converts them into digital signals;

[0040] Alarm module: Receives the digital signal of dust concentration detected by the dust monitoring module, and triggers an alarm signal when it exceeds the preset safety threshold;

[0041] Debugging module: including a control unit, which receives a digital signal of dust concentration detected by the dust monitoring module. When the dust concentration exceeds a preset safety threshold, the control unit adjusts the air volume generated in the ventilation system, wherein the control unit adjusts the speed of the fan by changing the input voltage or current of the fan, thereby changing the air volume of the ventilation system;

[0042] Specifically, the initial state: the initial speed of the fan is 1500rpm, corresponding to an air volume of 5000m 3 / h;

[0043] When the dust monitoring module detects that the dust concentration exceeds 100 mg / m 3 When the control unit issues a command, the control unit increases the input voltage of the fan from 220V to 240V through the inverter, and the fan speed is increased to 1800rpm. As the fan speed increases, the air volume of the ventilation system also increases to 6000m 3 / h, thus enhancing the dust removal capacity in the working area;

[0044] Data recording module: records the historical data of the digital signal of dust concentration detected by the dust monitoring module to facilitate subsequent long-term evaluation.

[0045] The collection module uses a high-precision dust sensor to sense the number and size of suspended particles in the ventilation system and converts them into digital signals;

[0046] Specifically, after the dust concentration data in the working area is collected and measured in real time by the monitoring module, the data is compared with the preset safety threshold. When the preset safety threshold is exceeded, not only an alarm signal is triggered, but also the control unit is triggered. The control unit can adjust the air volume generated in the ventilation system. That is, when the dust content exceeds the standard, the dust concentration in the air can be reduced immediately and effectively, which is faster and more accurate than manual intervention, so that the working environment can be quickly restored to a safe level. By increasing the ventilation volume, the air containing high-concentration dust can be quickly discharged from the working area, and fresh air can be introduced to reduce the harm of dust to the health of workers;

[0047] Through the synchronization of timely alarm module and debugging module, the safety environment of the working area can be quickly restored, reducing downtime and business losses caused by excessive dust, which is more important in the working environment of production lines that need to run continuously;

[0048] The specific steps for debugging the module are as follows:

[0049] S1: The control unit receives the digital signal of dust concentration detected by the dust monitoring module;

[0050] S2: The control unit compares the received dust concentration data with the preset safety threshold;

[0051] S3: When the dust concentration exceeds the set safety threshold, the control unit issues a control command to adjust the ventilation system;

[0052] Among them, in specific use, Sharp GP2Y1010AU0F dust sensor is used to sense the number and size of suspended particles in the air, and ADC0832 analog-to-digital converter is used to convert the analog electrical signal output by the dust sensor into an 8-bit digital signal. The range of the converted digital signal is usually between 0 and 255, wherein the digital signal of the dust concentration received and converted is 150, wherein the safety threshold set by the user is 100, and when the dust concentration exceeds the set safety threshold, the control unit will issue a command to control the alarm signal, and the alarm signal usually includes a buzzer and an LED light. At the same time, the control unit will control the relay of the ventilation system to adjust the air volume of the ventilation system to a higher gear to increase the ventilation volume and reduce the dust concentration in the environment. The ventilation system originally runs at air volume gear 2. When the dust concentration exceeds the standard, the single-chip microcomputer controls the relay to adjust the air volume to gear 4.

[0053] Specifically, by real-time monitoring of dust concentration and comparing it with the preset safety threshold, potential dust exceeding the standard risk can be discovered in a timely manner. When the dust concentration exceeds the safety standard, the ventilation system is automatically triggered to adjust, effectively reducing dust accumulation, reducing health risks caused by dust explosions and workers inhaling harmful dust, thereby significantly improving the safety of the working environment;

[0054] The specific steps of dust concentration test are as follows:

[0055] S01: The high-precision dust sensor emits light into the air, and the light is scattered when it encounters suspended particles;

[0056] Specifically, the Sharp GP2Y1010AU0F dust sensor first activates its built-in light source, usually a laser diode or LED light source, which emits light of a specific wavelength. When suspended particles in the air meet these lights, the light is scattered on the surface of the particles.

[0057] S02: The photodetector collects the scattered light signal and converts it into an electrical signal;

[0058] S03: amplifying and filtering the electrical signal, wherein the electrical signal to be filtered is input to the input end of the filter, and the filter filters the signal according to the set parameters to attenuate or suppress unnecessary frequency components, wherein a high-pass filter is used here to filter the amplified electrical signal, and the high-pass filter can attenuate or suppress signal components below the set cutoff frequency, and only allows signals above the frequency to pass, thereby removing low-frequency noise and interference in the signal and improving the signal-to-noise ratio of the signal;

[0059] S04: The amplified and filtered electrical signal is converted into a digital signal through an analog-to-digital converter, and finally a digital signal value of the dust concentration is obtained.

[0060] The data recording module receives the digital signal output by the dust monitoring module in real time, and stores the received digital signal in the internal memory or external database. The data recording module also includes data query and data export functions, so that the staff can view and analyze historical data at any time;

[0061] Dust concentration data can be recorded and stored, providing a basis for subsequent data analysis. By analyzing historical data, we can understand the changing trend of dust concentration, identify potential risk points, and formulate more reasonable dust control measures;

[0062] A dust monitoring device is applied to the above-mentioned dust monitoring ventilation system, comprising a monitoring body 1 and a detection port 4 arranged on the monitoring body 1. The monitoring body 1 is also provided with a connection port 3. A heat dissipation body 2 is arranged on one side of the monitoring body 1.

[0063] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0064] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

[0065] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dust monitoring ventilation system, characterized in that: include: Dust monitoring module: collects and measures the dust concentration in the working area in real time, senses the number and size of suspended particles in the air, and converts them into digital signals; Alarm module: Receives the digital signal of dust concentration detected by the dust monitoring module, and triggers an alarm signal when it exceeds the preset safety threshold; Debugging module: including a control unit, which receives a digital signal of dust concentration detected by the dust monitoring module. When the dust concentration exceeds a preset safety threshold, the control unit adjusts the air volume generated in the ventilation system, wherein the control unit adjusts the speed of the fan by changing the input voltage or current of the fan, thereby changing the air volume of the ventilation system; Data recording module: records the historical data of the digital signal of dust concentration detected by the dust monitoring module, which is convenient for subsequent long-term evaluation; The specific steps of the debugging module are as follows: S1: The control unit receives the digital signal of dust concentration detected by the dust monitoring module; S2: The control unit compares the received dust concentration data with the preset safety threshold; S3: When the dust concentration exceeds the set safety threshold, the control unit issues a control command to adjust the ventilation system.

2. The dust monitoring ventilation system according to claim 1, characterized in that: The acquisition module uses a high-precision dust sensor to sense the number and size of suspended particles in the ventilation system and converts them into digital signals.

3. The dust monitoring ventilation system according to claim 2, characterized in that: The specific steps of dust concentration test are as follows: S01: The high-precision dust sensor emits light into the air, and the light is scattered when it encounters suspended particles; S02: The photodetector collects the scattered light signal and converts it into an electrical signal; S03: amplifying and filtering the electrical signal; S04: The amplified and filtered electrical signal is converted into a digital signal through an analog-to-digital converter, and finally a digital signal value of the dust concentration is obtained.

4. The dust monitoring ventilation system according to claim 3, characterized in that: The filtering process of the electric signal in step S03 is performed by using a high-pass filter.

5. The dust monitoring ventilation system according to claim 4, characterized in that: The data recording module receives the digital signal output by the dust monitoring module in real time, and stores the received digital signal in an internal memory or an external database.

6. The dust monitoring ventilation system according to claim 5, characterized in that: The data recording module also includes data query and data export functions, so that staff can view and analyze historical data at any time.

7. A dust monitoring device, applied to the dust monitoring ventilation system of any one of claims 1 to 6, characterized in that: It comprises a monitoring body (1) and a detection port (4) arranged on the monitoring body (1); the monitoring body (1) is also provided with a connection port (3).

8. The dust monitoring device according to claim 7, characterized in that: A heat dissipation body (2) is provided on one side of the monitoring body (1).

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