Indoor air-quality real-time on-line monitoring circuit based on bluetooth

A technology for indoor air quality and monitoring circuits, applied in instruments, alarms, etc., can solve the problems of low sensitivity, large volume, high power consumption, etc., and achieve the effects of high sensitivity, reduced pollution indicators, and low power consumption

Inactive Publication Date: 2017-03-22
DATCENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, real-time online monitoring circuits for indoor air quality generally have large volumes, high power consumption, and low sensitivity, and there are few real-time online monitoring circuits for indoor air quality based on Bluetooth

Method used

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  • Indoor air-quality real-time on-line monitoring circuit based on bluetooth
  • Indoor air-quality real-time on-line monitoring circuit based on bluetooth
  • Indoor air-quality real-time on-line monitoring circuit based on bluetooth

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Embodiment 1

[0021] This embodiment is a real-time online monitoring circuit of indoor air quality based on bluetooth, the circuit is as follows Figure 1-6 As shown, it includes an MCU chip with Bluetooth function, an indoor gas detection sensor module and a memory chip; the MCU chip with Bluetooth function in this embodiment is a CC254X chip; the indoor gas detection sensor module is an IAQC module; and the memory chip is an FM26CX chip. After the power supply VCC passes through the inductor L3, it is filtered by the parallel capacitance of the capacitor C11 and the capacitor C16, and then connected to the 31st pin of the MCU chip. 27, 28 and 29 three pins, the power supply of the 27th pin of the MCU chip is connected to the 24th pin of the MCU chip after being filtered by the capacitor C9, the power supply of the 24th pin of the MCU chip is connected to the 21st pin of the MCU chip after passing through the capacitor C8, and the 21st pin of the MCU chip The power supply of pin 10 is con...

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Abstract

An indoor air-quality real-time on-line monitoring circuit based on Bluetooth comprises a MCU chip possessing a bluetooth function, an indoor gas detection sensing module and a storage chip. A second pin of the MCU chip is a SCL signal of an IIC communication bus, is connected to a SCL port of the indoor gas detection sensing module S1 and a SCL port of the storage chip U2 and is pulled up to a power supply VCC through a resistor R4. A third pin of the MCU chip is a SDA signal of the IIC communication bus, is connected to a SDA port of the indoor gas detection sensing module S1 and a SDA port of the storage chip U2 and is pulled up to the power supply VCC through a resistor R3. An air detection circuit in the invention possesses characteristics that the size is small, power dissipation is low and sensitivity is high. A bluetooth circuit uses a mature bluetooth module to communicate with the CPU so that communication with bluetooth equipment can be performed according to a client demand. Once concentration of a harmful gas is detected to be too high, a user can be timely notified so that correlation processing can be performed.

Description

technical field [0001] The invention relates to a real-time air quality monitoring technology, in particular to a bluetooth-based real-time online monitoring circuit for indoor air quality. Background technique [0002] Bluetooth (Bluetooth®) is a wireless technology standard that enables short-distance data exchange between fixed equipment, mobile equipment, and building personal area networks (using UHF radio waves in the ISM band of 2.4-2.485GHz). Bluetooth technology was originally created by telecom giant Ericsson in 1994 as an alternative to RS232 data lines. Bluetooth can connect multiple devices and overcome the problem of data synchronization. [0003] Today Bluetooth is managed by the Bluetooth Special Interest Group (SIG). The Bluetooth SIG has more than 25,000 member companies in the world, and they are distributed in multiple fields such as telecommunications, computers, networks, and consumer electronics. The IEEE lists Bluetooth technology as IEEE 802.15.1, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/12G08B21/14G08B25/10
CPCG08B21/12G08B21/14G08B25/10
Inventor 王进蒋树春仲进平
Owner DATCENT TECH
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