CN203706367U - Combustible gas detection system with remote alarm function - Google Patents

Combustible gas detection system with remote alarm function Download PDF

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Publication number
CN203706367U
CN203706367U CN201420100932.9U CN201420100932U CN203706367U CN 203706367 U CN203706367 U CN 203706367U CN 201420100932 U CN201420100932 U CN 201420100932U CN 203706367 U CN203706367 U CN 203706367U
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CN
China
Prior art keywords
unit
control terminal
wireless transmit
gas detection
main control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420100932.9U
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Chinese (zh)
Inventor
陈正涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Technology
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Shaanxi University of Technology
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Filing date
Publication date
Application filed by Shaanxi University of Technology filed Critical Shaanxi University of Technology
Priority to CN201420100932.9U priority Critical patent/CN203706367U/en
Application granted granted Critical
Publication of CN203706367U publication Critical patent/CN203706367U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a combustible gas detection system with a remote alarm function. The system comprises a master control terminal and a slave control terminal. The master control terminal comprises a master controller unit, a remote alarm unit, a display unit, a voice alarm unit and a wireless transmit-receive unit 1, wherein the master controller unit is respectively connected with the remote alarm unit, the display unit, the voice alarm unit and the wireless transmit-receive unit 1. The slave control terminal comprises a slave controller unit, a temperature compensation unit, a combustible gas detection unit and a wireless transmit-receive unit 2, wherein the slave controller unit is respectively connected with temperature compensation unit, the combustible gas detection unit and the wireless transmit-receive unit 2. The master control terminal and the slave control terminal are connected through a wireless transmission mode. The advantages are as follows: the design is novel, the use is convenient, data is transmitted by use of a wireless mode, the master control terminal and the slave control terminal can be moved at any time, the system expansibility is quite good, the working is stable and reliable, and the application occasions needing real-time monitoring and transmitting of the concentration of a combustible gas are satisfied.

Description

There is the inflammable gas detection system of remote alarming function
Technical field
The utility model relates to gas detection technology field, specifically a kind of inflammable gas detection system with remote alarming function.
Background technology
The flammable explosion hazard gasess such as methane, carbon monoxide, sulfuretted hydrogen are the potential causes that causes serious accident, if can not find early and controlling alarm, will cause gas concentration to increase, in the time arriving certain limit, will blast, fire, the serious consequence such as poisoning, bring the loss that cannot estimate to individual or collective.Therefore, to the detection of flammable explosion hazard gases be the important step of safety in production.Although comparative maturity of current gas detection technology, most products all exists the shortcomings such as larger, the expensive and sensitivity of function singleness, complicated operation, volume is lower.Along with the development of electronic technology, the more and more generalization of the function of gas detecting instrument, wireless communication technology is applied to field of gas detection, not only can solve the remote monitoring under the particular surroundingss such as high temperature, low temperature, toxic gas, and can effectively solve in gas monitor in cannot wiring situation and wire transmission and have problem difficult in maintenance, strengthen monitoring and the adaptive faculty of system.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of inflammable gas detection system with remote alarming function, adopts wireless way for transmitting data, at any time mobile main control terminal processed and from control terminal, system features in convenient, extendability is better.
The utility model solves the technical scheme that its technical matters adopts: a kind of inflammable gas detection system with remote alarming function, comprise main control terminal and from control terminal, main control terminal comprises Main Control Unit, remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1, and Main Control Unit is connected with remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1 respectively; Comprise from controller unit, temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 from control terminal, be connected with temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 respectively from controller unit; Main control terminal be connected by wireless transmission method from control terminal.
Described inflammable gas detecting unit comprises combustible gas sensor, signal conditioning circuit and analog to digital conversion circuit, and signal conditioning circuit is connected with combustible gas sensor and analog to digital conversion circuit respectively.
As preferably, combustible gas sensor adopts highly sensitive gas sensing resistance sensor.
As preferably, wireless transmit/receive units 1 and wireless transmit/receive units 2 all adopt the nRF24L01 module that is operated in 2.4G frequency range.
As preferably, remote alarms unit adopts gsm communication module SIM300.
The beneficial effects of the utility model are:
The utility model adopts the gas sensing resistance sensor of superior performance, is furnished with temperature compensation unit simultaneously, has effectively improved inflammable gas accuracy of detection; Adopt nRF24L01 module, improved level of integrated system, reduced system power dissipation, realized main control terminal and from short-range radio communication between control terminal; Adopt gsm communication module SIM300 can conveniently be linked into GSM network, for remote alarms provides Network Transmitting passage.
The utility model modern design, easy to use, adopt wireless way for transmitting data, mobile main control terminal processed and from control terminal at any time, system extension is better, and working stability is reliable, the application scenario of can satisfy the demand combustable gas concentration Real-Time Monitoring and transmission.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model structural framing schematic diagram.
Embodiment
As shown in Figure 1, a kind of inflammable gas detection system with remote alarming function, comprise main control terminal and from control terminal, main control terminal comprises Main Control Unit, remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1, and Main Control Unit is connected with remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1 respectively; Comprise from controller unit, temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 from control terminal, be connected with temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 respectively from controller unit; Main control terminal be connected by wireless transmission method from control terminal.
Inflammable gas detecting unit comprises combustible gas sensor, signal conditioning circuit and analog to digital conversion circuit, and signal conditioning circuit is connected with combustible gas sensor and analog to digital conversion circuit respectively.Inflammable gas detecting unit completes collection, amplification and the output of gas concentration.
As preferably, Main Control Unit and all adopt and select STC89S52 single-chip microcomputer from controller unit, display unit is selected LCD12864 liquid crystal display, and hummer is selected in audio alert unit, and temperature compensation unit is selected DS18B20 chip.
Described combustible gas sensor is selected gas sensing resistance sensor TGS831, and signal conditioning circuit is selected LM324 amplifier, and analog to digital conversion circuit is selected 12 bit serial analog to digital converter TLC2453.The conductivity of TGS831 sensor is subject to the impact of combustable gas concentration in air, and concentration is larger, and conductivity is higher.According to above-mentioned principle, the variation of conductivity is converted to the electric signal that can identify by external simple circuit, electric signal is the output signal corresponding with gas concentration.Signal conditioning circuit to this output signal amplify, filtering regulate after, export suitable voltage to analog to digital conversion circuit, the digital signal after analog to digital conversion circuit is directly exported to from controller unit.
Described wireless transmit/receive units 1 and wireless transmit/receive units 2 all adopt the nRF24L01 module that is operated in 2.4G frequency range.The integrated crystal oscillator of this inside modules, sending and receiving enhancement mode controller, modulator-demodular unit, power amplifier, be operated in 2.4GHz frequency range, has the features such as volume is little, low in energy consumption, distance, communication robust, strong anti-interference performance.Main Control Unit communicates by SPI interface and wireless transmit/receive units 1, communicates by SPI interface and wireless transmit/receive units 2 from controller unit.Described remote alarms unit adopts gsm communication module SIM300, and this module is mainly made up of parts such as CPU, radio-frequency module, baseband processing module, power management module, SIM card, universal external interfaces.Main Control Unit adopts serial communication interface and this module to communicate, and completes corresponding operation by AT instruction.
The utility model adopts master slave mode to realize the monitoring of inflammable gas.Main control terminal with complete short-range data transmission from control terminal by wireless mode.From combustable gas concentration signal, the temperature signal of collection being processed from controller unit of control terminal, realize temperature compensation by software, data after treatment send by wireless transmit/receive units 2; The main control unit of main control terminal receives data by wireless transmit/receive units 1, when gas concentration occurs when abnormal driving audio alert unit to send alerting signal, utilizes remote alarms unit that warning message is sent to user mobile phone.
Disclosed is above only the specific embodiment of this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, is not departing under the prerequisite of the utility model principle, and the distortion of making should be considered as belonging to the utility model protection domain.

Claims (5)

1. one kind has the inflammable gas detection system of remote alarming function, comprise main control terminal and from control terminal, it is characterized in that: described main control terminal comprises Main Control Unit, remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1, described Main Control Unit is connected with remote alarms unit, display unit, audio alert unit and wireless transmit/receive units 1 respectively; Describedly comprise from controller unit, temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 from control terminal, describedly divide separately and be connected with temperature compensation unit, inflammable gas detecting unit and wireless transmit/receive units 2 from controller unit; Described main control terminal be connected by wireless transmission method from control terminal.
2. the inflammable gas detection system with remote alarming function according to claim 1, it is characterized in that: described inflammable gas detecting unit comprises combustible gas sensor, signal conditioning circuit and analog to digital conversion circuit, signal conditioning circuit is connected with combustible gas sensor and analog to digital conversion circuit respectively.
3. the inflammable gas detection system with remote alarming function according to claim 2, is characterized in that: described combustible gas sensor adopts highly sensitive gas sensing resistance sensor.
4. the inflammable gas detection system with remote alarming function according to claim 1, is characterized in that: described wireless transmit/receive units 1 and wireless transmit/receive units 2 all adopt the nRF24L01 module that is operated in 2.4G frequency range.
5. the inflammable gas detection system with remote alarming function according to claim 1, is characterized in that: described remote alarms unit adopts gsm communication module SIM300.
CN201420100932.9U 2014-02-26 2014-02-26 Combustible gas detection system with remote alarm function Expired - Fee Related CN203706367U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420100932.9U CN203706367U (en) 2014-02-26 2014-02-26 Combustible gas detection system with remote alarm function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420100932.9U CN203706367U (en) 2014-02-26 2014-02-26 Combustible gas detection system with remote alarm function

Publications (1)

Publication Number Publication Date
CN203706367U true CN203706367U (en) 2014-07-09

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CN201420100932.9U Expired - Fee Related CN203706367U (en) 2014-02-26 2014-02-26 Combustible gas detection system with remote alarm function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104881966A (en) * 2015-05-15 2015-09-02 焦一平 Wireless remote monitoring system for gas leakage
CN106706034A (en) * 2016-11-28 2017-05-24 河北农业大学 Henhouse temperature and humidity mobile phone alarm device and alarm method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104881966A (en) * 2015-05-15 2015-09-02 焦一平 Wireless remote monitoring system for gas leakage
CN106706034A (en) * 2016-11-28 2017-05-24 河北农业大学 Henhouse temperature and humidity mobile phone alarm device and alarm method

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140709

Termination date: 20150226