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LoRa-based sewer biogas real-time detection and purification embedded IoT device

A real-time detection and embedded technology, applied in chemical instruments and methods, dispersed particle filtration, program control, etc., can solve the problems of large methane, no way to detect and monitor the concentration of methane in sewers, explosions, etc., to reduce the hidden dangers of methane explosions and facilitate Modification and application, cheap effect

Inactive Publication Date: 2019-11-12
KUNMING UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the present invention provides an embedded IoT device for real-time detection and purification of sewer biogas based on LoRa, mainly to solve the problem of biogas generation in relatively closed environments such as urban sewers without detection and monitoring, resulting in sewer biogas concentration The problem that it is too large to bury the hidden danger of biogas explosion

Method used

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  • LoRa-based sewer biogas real-time detection and purification embedded IoT device
  • LoRa-based sewer biogas real-time detection and purification embedded IoT device
  • LoRa-based sewer biogas real-time detection and purification embedded IoT device

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Embodiment 1

[0027] Embodiment 1: as Figure 1-2 As shown, the LoRa-based sewer biogas real-time detection and purification embedded IoT device includes a purification box 1 at the top and a control box 2 at the bottom. The purification box 1 is provided with an exhaust fan 4, a filter The network 5 and the biogas absorption device 6 are three parts, wherein the exhaust fan 4 is embedded in one side of the purification box 1 and connected to a 12V battery 10 for power supply, and the other side of the purification box 1 is provided with a biogas absorption device 6, and the biogas absorption device 6 and Filter screens 5 are provided on opposite sides of the exhaust fan 4 for the entry and output of biogas;

[0028] The control box 2 is provided with an integrated control circuit board 9 and a 12V battery 10, and a methane gas sensor 7 and a hydrogen sulfide gas sensor 8 are embedded in one side of the control box 2, wherein the integrated control circuit board 9 is integrated with an STM8...

Embodiment 2

[0031] Embodiment 2: In this embodiment, the circuit structure of each module is described in detail.

[0032] like image 3 As shown, the STM8 single-chip microcomputer module 11 includes a STM8S003F3 single-chip microcomputer U1, a jumper terminal J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a resistor R1, a resistor R2, a crystal oscillator Y1 and a switch S1; wherein, the resistor R1 One end of the resistor R1 is connected to the positive pole of the 3.3V power supply, the other end of the resistor R1 is simultaneously connected to the No. 4 pin of the STM8S003F3 microcontroller U1 and the No. 2 port of the jumper terminal J1, one end of the switch S1 and one end of the capacitor C1 are grounded, and the other end of the switch S1 and the other end of capacitor C1 are simultaneously connected to pin 4 of STM8S003F3 microcontroller U1 and port 2 of jumper terminal J1; one end of capacitor C2 and one end of capacitor C3 are respectively...

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Abstract

The invention relates to a LoRa-based sewer biogas real-time detection and purification embedded IoT device, and belongs to the field of smart cities. The device provided by the invention comprises amethane gas sensor, a hydrogen sulfide sensor, an integrated control circuit board, a 12V battery, an exhaust fan, a filter screen and a biogas absorption device, wherein the biogas detection and purification device is divided into two parts of a purification tank and a control tank from top to bottom; the purification tank is provided with the exhaust fan, the filter screen and the biogas absorption device; the methane gas sensor and the hydrogen sulfide sensor are embedded on one side of the control tank; the integrated control circuit board is internally arranged and the 12V battery is placed in the control tank. The device provided by the invention can be fixed on the sewer wall, can be used for detecting the automatic absorption and purification of biogas when the concentration of thebiogas exceeds the standard, can upload the biogas data collected by the gas sensor to the LoRa base station by the LoRa communication module, and can upload the information to the cloud server through the GPRS communication method by the LoRa base station for further transmission of the information to the relevant department to realize alarm prompt.

Description

technical field [0001] The invention relates to a LoRa-based sewer biogas real-time detection and purification embedded Internet of Things device, which belongs to the field of smart cities. Background technique [0002] In cities, relatively closed spaces like sewers often produce a lot of methane due to the anaerobic environment. Among the components of biogas, 50%-80% are extremely flammable methane, hydrogen sulfide and other components. When the air contains about 8%-20% biogas, an explosive gas mixture will be formed. However, due to unmanned inspection and supervision of the sewer, it often causes the accumulation of methane and buryes the hidden danger of explosion. Especially in festivals such as the Spring Festival, when people set off fireworks and firecrackers and accidentally fall into the sewer where the concentration of methane is too high, it may cause an explosion and threaten people's personal safety. Then, how to effectively reduce the biogas concentrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042B01D46/10B01D53/14
CPCG05B19/0423B01D46/10B01D53/14G05B2219/25257
Inventor 张晶魏淼郑焕科王健敏
Owner KUNMING UNIV OF SCI & TECH