CN209961749U - Indoor harmful gas monitoring system based on ZigBee - Google Patents
Indoor harmful gas monitoring system based on ZigBee Download PDFInfo
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- CN209961749U CN209961749U CN201920405661.0U CN201920405661U CN209961749U CN 209961749 U CN209961749 U CN 209961749U CN 201920405661 U CN201920405661 U CN 201920405661U CN 209961749 U CN209961749 U CN 209961749U
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Abstract
The utility model relates to an indoor harmful gas monitoring system based on zigBee, include: the system comprises a plurality of terminal nodes, a coordinator, a communication module and a user intelligent terminal; the terminal node collects harmful gas concentration information at the position through a harmful gas sensor and transmits the information to the coordinator; and the coordinator judges the grade of the harmful gas according to the concentration value of the harmful gas and determines the source place of the harmful gas. According to the system, harmful gas collection is carried out through a plurality of terminal nodes built by the ZigBee wireless sensor network, so that the concentration of indoor harmful gas can be more accurately obtained; the system can also judge the specific source position of the harmful gas, and is beneficial to more accurately treating the harmful gas by a user; when harmful gas leaks indoors, the system can send detailed information of the indoor harmful gas to the mobile phone of the user, so that remote monitoring and alarming of the indoor harmful gas are realized, and the life and property safety of the user is protected.
Description
Technical Field
The utility model relates to a harmful gas monitoring technology field, concretely relates to indoor harmful gas monitoring system based on zigBee.
Background
With the rapid development of economy and science, the requirements of people on the comfort level and the health level of the living environment are higher and higher, but various environmental problems exist in real life: various impurities, haze and harmful gases diffuse in outdoor air, toxic and harmful gases such as formaldehyde generated by indoor house decoration and polluted gases generated in factories cannot corrode the health of people anytime and anywhere. The household environment and the workplace which are safe and comfortable all the time exist, and the condition that the monitoring instrument and the manpower supervision are simple is far from enough. At present, how to accurately sense the concentration of harmful gas in the surrounding environment under the conditions of low cost and simple structure, and quickly and accurately positioning a gas leakage source is a difficult problem to overcome.
At present, in the industry and enterprises related to harmful gas detection at home and abroad, the research on the harmful gas detection is still in the primary stage, and most of detection equipment can only realize the functions of gas concentration detection and overrun alarm. Harmful gas detectors can be generally classified into portable detectors and stationary detectors. The portable detector is mainly used for single sample detection and environment emergency detection, and the fixed detector is mainly used in industrial places which are easy to generate harmful gas, and is used for monitoring production places in real time. The existing indoor gas detection system has many defects: for example, a fixed detector is too dependent on communication facilities based on wires and cables, and has large volume, high cost and no remote monitoring; the portable detector can only be carried by a tester to enter a test point for testing, and firstly, the tester is possibly in danger and has life danger; secondly, the portable detector is not suitable for indoor large-area test detection and cannot be used for remote real-time monitoring. Moreover, when the existing detection equipment detects that the environment harmful gas exceeds the standard, the leakage source of the harmful gas cannot be accurately positioned, and the rapid and efficient treatment of the harmful gas is facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the not enough of prior art, provide an indoor harmful gas monitoring system based on zigBee.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an indoor harmful gas monitoring system based on ZigBee comprises:
the system comprises a plurality of terminal nodes, a coordinator, a communication module and a user intelligent terminal;
wherein, a plurality of terminal nodes are dispersedly arranged at different indoor positions, and each terminal node comprises: the system comprises a harmful gas sensor, a controller, an A/D conversion module and a first ZigBee module;
the harmful gas sensor is used for collecting harmful gas concentration information at the position, processing the information through the A/D conversion module and transmitting the information to the controller, and the controller transmits the gas concentration information to the coordinator through the first ZigBee module;
the coordinator includes: the main controller and the second ZigBee module;
the main controller receives harmful gas concentration information transmitted by the terminal node through the second ZigBee module, wherein the harmful gas concentration information comprises: the type and corresponding concentration value of the harmful gas; and the main controller judges the grade of the harmful gas according to the concentration value of the harmful gas and judges the source place of the harmful gas according to the concentration value of the harmful gas and the address of the terminal node.
Optionally, the coordinator is connected with the communication module through a serial port, and the coordinator can send the concentration information of the harmful gas and the source of the harmful gas to the communication module through the serial port, and then the communication module wirelessly transmits the concentration information of the harmful gas to the user intelligent terminal.
Optionally, the type of the harmful gas sensor is MQ-2 harmful gas sensor, and the harmful gas sensor is used for detecting concentration values of liquefied gas, carbon monoxide, methane and phenolic gases in an indoor environment.
Optionally, the coordinator further includes:
an alarm module;
the alarm module is electrically connected with the main controller and used for sending out an alarm signal under the control of the main controller when the indoor harmful gas level exceeds the standard.
Optionally, the alarm module includes:
the alarm system comprises a buzzer for sending alarm information in a sound mode and/or an LED indicator lamp for sending the alarm information in a light flashing mode.
Optionally, the coordinator further includes:
a display module;
the display module is electrically connected with the main controller and used for displaying the concentration value, the grade and the source place of the harmful gas exceeding the standard in real time when the grade of the harmful gas in the room exceeds the standard.
Optionally, each terminal node is further provided with a power module for supplying power to the harmful gas sensor, the controller, the a/D conversion module, and the first ZigBee module.
Optionally, the controller and the main controller are both 8051 single-chip microcomputers.
Optionally, the communication module is: a GSM module;
and the GSM module sends the data of the coordinator to the user intelligent terminal in a short message transparent transmission mode.
Optionally, the user intelligent terminal includes: smart phones and smart tablet computers.
The utility model adopts the above technical scheme, indoor harmful gas monitoring system based on zigBee, include: the system comprises a plurality of terminal nodes, a coordinator, a communication module and a user intelligent terminal; wherein, a plurality of terminal nodes are dispersedly arranged at different indoor positions, and each terminal node comprises: the system comprises a harmful gas sensor, a controller, an A/D conversion module and a first ZigBee module; the harmful gas sensor is used for collecting harmful gas concentration information at the position, processing the information through the A/D conversion module and transmitting the information to the controller, and the controller transmits the gas concentration information to the coordinator through the first ZigBee module; the coordinator includes: the main controller and the second ZigBee module; the main controller receives harmful gas concentration information transmitted by the terminal node through the second ZigBee module, wherein the harmful gas concentration information comprises: the type and corresponding concentration value of the harmful gas; and the main controller judges the grade of the harmful gas according to the concentration value of the harmful gas and judges the source place of the harmful gas according to the concentration value of the harmful gas and the address of the terminal node. According to the system, harmful gas collection is carried out through a plurality of terminal nodes built by the ZigBee wireless sensor network, so that the concentration of indoor harmful gas can be more accurately obtained; the system can also judge the specific source position of the harmful gas, and is beneficial to more accurately treating the harmful gas by a user; when harmful gas leaks indoors, the system can send detailed information of the indoor harmful gas to the mobile phone of the user, so that remote monitoring and alarming of the indoor harmful gas are realized, and the life and property safety of the user is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure provided by the indoor harmful gas monitoring system based on ZigBee;
FIG. 2 is a schematic structural diagram of a terminal node of the indoor harmful gas monitoring system based on ZigBee;
FIG. 3 is a schematic structural diagram of the coordinator of the indoor harmful gas monitoring system based on ZigBee;
fig. 4 is a schematic diagram of a data acquisition process of a terminal node based on ZigBee communication in the prior art.
In the figure: 1. a terminal node; 2. a coordinator; 3. a GSM module; 4. a user intelligent terminal; 5. a harmful gas sensor; 6. a controller; 7. an A/D conversion module; 8. a first ZigBee module; 9. a main controller; 10. a second ZigBee module; 11. an alarm module; 12. a display module; 13. a power supply module; 14. and (6) serial port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the utility model provides an indoor harmful gas monitoring system based on zigBee, include:
the system comprises a plurality of terminal nodes 1, a coordinator 2, a communication module and a user intelligent terminal 4;
wherein, a plurality of terminal nodes 1 are dispersedly arranged at different indoor positions, and each terminal node 1 includes: the system comprises a harmful gas sensor 5, a controller 6, an A/D conversion module 7 and a first ZigBee module 8;
the harmful gas sensor 5 is used for collecting harmful gas concentration information at the position, processing the information through the A/D conversion module 7 and transmitting the information to the controller 6, and the controller 6 transmits the gas concentration information to the coordinator 2 through the first ZigBee module 8;
the coordinator 2 includes: a main controller 9 and a second ZigBee module 10;
the main controller 9 receives harmful gas concentration information transmitted by the terminal node 1 through the second ZigBee module 10, wherein the harmful gas concentration information includes: the type and corresponding concentration value of the harmful gas; the main controller 9 judges the grade of the harmful gas according to the concentration value of the harmful gas, and judges the source place of the harmful gas according to the concentration value of the harmful gas and the address of the terminal node 1.
Further, the coordinator 2 is connected with the communication module through a serial port 14, and the coordinator 2 can send the concentration information of the harmful gas and the source of the harmful gas to the communication module through the serial port 14, and then the communication module wirelessly transmits the concentration information of the harmful gas to the intelligent user terminal 4.
Specifically, the type of the harmful gas sensor 5 is MQ-2 harmful gas sensor, and the harmful gas sensor is used for detecting concentration values of liquefied gas, carbon monoxide, methane and phenolic gases in an indoor environment.
It should be noted that the coordinator 2 further includes:
an alarm module 11;
the alarm module 11 is electrically connected with the main controller 9 and is used for sending out an alarm signal under the control of the main controller 9 when the indoor harmful gas level exceeds the standard.
Specifically, the alarm module 11 includes:
the alarm system comprises a buzzer for sending alarm information in a sound mode and/or an LED indicator lamp for sending the alarm information in a light flashing mode.
Further, the coordinator 2 further includes:
a display module 12;
the display module 12 is electrically connected with the main controller 9 and is used for displaying the concentration value, the grade and the source location of the harmful gas exceeding the standard in real time when the grade of the harmful gas in the room exceeds the standard. The display module 12 is an LCD display module 12.
It should be added that each terminal node 1 is further provided with a power module 13 for supplying power to the harmful gas sensor 5, the controller 6, the a/D conversion module 7, and the first ZigBee module 8. Each terminal node 1 supplies power through the independent power module 13, which is beneficial to ensuring that each terminal node 1 can be flexibly arranged at any indoor position according to actual requirements.
Specifically, the controller 6 and the main controller 9 are both 8051 single-chip microcomputers.
It should be further explained that the communication module is: a GSM module 3;
and the GSM module 3 sends the data of the coordinator to the user intelligent terminal 4 in a short message transparent transmission mode.
It is understood that the user intelligent terminal 4 includes: smart phones and smart tablet computers.
In practical use, the utility model provides a terminal node 1 that disperses in indoor different positions department utilizes MQ-2 harmful gas sensor 5 to gather the harmful gas information in the environment, and with this information pass through after the AD conversion module 7 is handled, send to controller 6, controller 6 again through the arborescent zigBee wireless sensor network of building with this gas concentration information transmission to coordinator 2; each piece of information received by the coordinator 2 includes: identity information of the coordinator 2 and harmful gas information (including harmful gas types and corresponding concentration values) uploaded by the coordinator 2; the main controller 9 on the coordinator 2 judges the level of the harmful gas according to the concentration value of the harmful gas, when the indoor level of the harmful gas exceeds the standard, the main controller 9 can obtain the position where the terminal node 1 is placed (which position where the terminal node 1 with each number is placed indoors is preset) by obtaining the identity information of the terminal node 1 reporting the exceeding gas, so that the source and the place of the harmful gas are judged, and the harmful gas is rapidly treated. And when the indoor harmful gas level exceeds the standard, the main controller 9 can also control the alarm module 11 to send out an alarm signal, so that a user can know and take treatment measures in time.
In order to improve the monitoring of the indoor harmful gas by the user, the coordinator 2 sends detailed information (including harmful gas types and corresponding concentration values) of the indoor harmful gas to the user intelligent terminal 4 through the GSM module 3, and sends alarm information to the user intelligent terminal 4 when a certain harmful gas exceeds the standard, so that the user can remotely receive the alarm information and take protective measures.
In the system, the terminal node 1 and the coordinator 2 both adopt a CC2530 development board to complete function development. Although the terminal node 1 does not need to store the collected harmful gas concentration information, a Z-Stack protocol Stack needs to be run on the terminal node 1, and therefore, the terminal node 1 may further include a 256KB flash memory. In the system, the concentration detection of liquefied gas, carbon monoxide, methane, phenols and other combustible gases in the indoor environment is completed by the MQ-2 harmful gas sensor 5.
In this embodiment, the terminal node 1 mainly completes the collection and transmission of harmful gas concentration information in the environment. The software design comprises a serial port 14 communication module and a radio frequency communication module (initialization of a Z-Stack protocol Stack, radio frequency transmission and reception). The software flow chart is shown in fig. 4. The software flow adopts the existing Zigbee protocol, and belongs to the prior art.
The indoor harmful gas monitoring system has the advantages of low power consumption, small time delay, small volume, portability, low cost and the like by utilizing the ZigBee wireless transmission technology, and can acquire indoor harmful gas more accurately by using a plurality of terminal nodes 1 built by the ZigBee wireless sensor network, so that the concentration of the indoor harmful gas (whether in a large-area room or a small-area room) can be acquired more accurately; the system can also judge the specific source position of the harmful gas, and is beneficial to more accurately treating the harmful gas by a user; the system is a set of low-power-consumption system, adopts battery power supply and wireless transmission, reduces the complexity of wiring, and reduces the use cost and the complexity of installation; in addition, this system passes through coordinator 2 and GSM module 3 communication, when taking place harmful gas in the room and leaking, can send the cell-phone of user to through the form of SMS with the detailed information of indoor harmful gas, lets the user know the specific situation in family very first time, has realized remote monitoring and warning to indoor harmful gas, is favorable to protecting user's life and property safety.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. An indoor harmful gas monitoring system based on ZigBee, comprising:
the system comprises a plurality of terminal nodes, a coordinator, a communication module and a user intelligent terminal;
wherein, a plurality of terminal nodes are dispersedly arranged at different indoor positions, and each terminal node comprises: the system comprises a harmful gas sensor, a controller, an A/D conversion module and a first ZigBee module;
the harmful gas sensor is used for collecting harmful gas concentration information at the position, processing the information through the A/D conversion module and transmitting the information to the controller, and the controller transmits the gas concentration information to the coordinator through the first ZigBee module;
the coordinator includes: the main controller and the second ZigBee module;
the main controller receives harmful gas concentration information transmitted by the terminal node through the second ZigBee module, wherein the harmful gas concentration information comprises: the type and corresponding concentration value of the harmful gas; and the main controller judges the grade of the harmful gas according to the concentration value of the harmful gas and judges the source place of the harmful gas according to the concentration value of the harmful gas and the address of the terminal node.
2. The indoor harmful gas monitoring system according to claim 1, wherein the coordinator is connected with the communication module through a serial port, and the coordinator can send harmful gas concentration information and a source of harmful gas to the communication module through the serial port and then wirelessly transmit the information to the user intelligent terminal through the communication module.
3. The indoor harmful gas monitoring system of claim 1, wherein the harmful gas sensor is a model MQ-2 harmful gas sensor for detecting concentration values of liquefied gas, carbon monoxide, methane and phenolic gases in an indoor environment.
4. The indoor harmful gas monitoring system according to claim 1, wherein the coordinator further includes:
an alarm module;
the alarm module is electrically connected with the main controller and used for sending out an alarm signal under the control of the main controller when the indoor harmful gas level exceeds the standard.
5. The indoor harmful gas monitoring system according to claim 4, wherein the alarm module includes:
the alarm system comprises a buzzer for sending alarm information in a sound mode and/or an LED indicator lamp for sending the alarm information in a light flashing mode.
6. The indoor harmful gas monitoring system according to claim 4, wherein the coordinator further includes:
a display module;
the display module is electrically connected with the main controller and used for displaying the concentration value, the grade and the source place of the harmful gas exceeding the standard in real time when the grade of the harmful gas in the room exceeds the standard.
7. An indoor harmful gas monitoring system according to claim 1, wherein each terminal node is further provided with a power supply module for supplying power to the harmful gas sensor, the controller, the A/D conversion module and the first ZigBee module.
8. The indoor harmful gas monitoring system according to any one of claims 1 to 7, wherein the controller and the main controller are both 8051 single-chip microcomputers.
9. The indoor harmful gas monitoring system according to any one of claims 1 to 7, wherein the communication module is: a GSM module;
and the GSM module sends the data of the coordinator to the user intelligent terminal in a short message transparent transmission mode.
10. The indoor harmful gas monitoring system according to any one of claims 1 to 7, wherein the user intelligent terminal includes: smart phones and smart tablet computers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920405661.0U CN209961749U (en) | 2019-03-27 | 2019-03-27 | Indoor harmful gas monitoring system based on ZigBee |
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| CN201920405661.0U CN209961749U (en) | 2019-03-27 | 2019-03-27 | Indoor harmful gas monitoring system based on ZigBee |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983557A (en) * | 2020-07-16 | 2020-11-24 | 宁波方太厨具有限公司 | Peculiar smell source detecting system and kitchen peculiar smell source detecting and discharging system |
| CN113203772A (en) * | 2021-03-18 | 2021-08-03 | 中国外运股份有限公司 | Industrial intelligent composite gas detector and detection method |
-
2019
- 2019-03-27 CN CN201920405661.0U patent/CN209961749U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983557A (en) * | 2020-07-16 | 2020-11-24 | 宁波方太厨具有限公司 | Peculiar smell source detecting system and kitchen peculiar smell source detecting and discharging system |
| CN113203772A (en) * | 2021-03-18 | 2021-08-03 | 中国外运股份有限公司 | Industrial intelligent composite gas detector and detection method |
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Granted publication date: 20200117 Termination date: 20210327 |