CN213458384U - Household gas collection terminal based on NBIoT communication - Google Patents
Household gas collection terminal based on NBIoT communication Download PDFInfo
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- CN213458384U CN213458384U CN202022742452.0U CN202022742452U CN213458384U CN 213458384 U CN213458384 U CN 213458384U CN 202022742452 U CN202022742452 U CN 202022742452U CN 213458384 U CN213458384 U CN 213458384U
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Abstract
The utility model discloses a domestic gas acquisition terminal based on NBIoT communication belongs to the gas monitoring field, and it has power input end and PWM signal input end, still includes DC-DC voltage reduction module, NB module, signal conversion module, MCU module, level conversion module and status indicator; the DC-DC voltage reduction module is connected with a power supply input end and supplies power to the MCU module and the NB module respectively after voltage reduction, one end of the signal conversion module is connected with the PWM signal input end, and the other end of the signal conversion module is connected with the MCU module; one end of the level conversion module is connected with the MCU module, the other end of the level conversion module is connected with the NB module, the level conversion module is used for matching the level of an interface between the MCU module and the NB module, and the state indicator is connected with the MCU module. The utility model discloses a core control ware MCU and carry out the remote data transmission communication through NB module and server high in the clouds, guaranteed data transmission's reliability.
Description
Technical Field
The utility model belongs to the technical field of the gas monitoring, particularly, relate to a domestic gas acquisition terminal based on NBIoT communication.
Background
The gas alarm is used for detecting leaked gas, a core component of the gas alarm is a gas sensor, and when the gas alarm detects that the gas concentration reaches a critical point set by an explosion or poison alarm, the gas alarm can send out an alarm signal.
In the family environment, it will be very dangerous thing to appear that the gas is revealed, and therefore the real-time supervision of gas alarm is especially important, but if nobody or only have the old man's the condition at home under, the alarm at home does not play effectual notice effect, in case the accident takes place, will cause the loss of life and property. Therefore, it is necessary to design a corresponding household gas collecting terminal by using a corresponding household gas alarm.
Disclosure of Invention
The utility model aims at providing a domestic gas acquisition terminal based on NBIoT communication to effectively guarantee the gas safety problem in the family environment.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
a household gas collecting terminal based on NBIoT communication comprises a power supply input end, a PWM signal input end, a DC-DC voltage reduction module, an NB module, a signal conversion module, an MCU module, a level conversion module and a state indicator;
the DC-DC voltage reduction module is connected with a power supply input end and supplies power to the MCU module and the NB module respectively after voltage reduction, one end of the signal conversion module is connected with the PWM signal input end, and the other end of the signal conversion module is connected with the MCU module; one end of the level conversion module is connected with the MCU module, the other end of the level conversion module is connected with the NB module, the level conversion module is used for matching the level of an interface between the MCU module and the NB module, and the state indicator is connected with the MCU module.
The household gas collecting terminal adopting the technical scheme is provided with a power supply input end and a PWM (pulse width modulation) signal input end, the MCU module is used as a core controller, when the household alarm detects that the gas concentration exceeds the standard, an alarm signal is output to the PWM signal input end, the signal is converted and output to the MCU module through the signal conversion module, the signal output by the MCU module is converted through the level conversion module and then is uploaded to the cloud end of the server through the NB module until a confirmation signal of the cloud end of the server is received; one end of the DC-DC voltage reduction module is connected with a power supply input end and is used for converting input voltage into power supply voltage suitable for the MCU module and the NB module; the MCU module controls the state indicator to work according to the communication condition and the network condition.
Further limiting, the DC-DC voltage reduction module, the NB module, the signal conversion module, the MCU module, the level conversion module and the status indicator are integrated together to form the NBIoT communication-based household gas collection terminal. The integration of the acquisition terminal can be improved by the limitation.
Further, the status indicator is an LED light set.
The utility model discloses a NB module utilizes NB network and server high in the clouds to be connected the communication to upload data collection, realize remote alarm, the NB module adopts the MQTT agreement, has both utilized the lightweight of agreement, has guaranteed data transmission's reliability again.
Drawings
Fig. 1 is a schematic block structure diagram of a household gas collection terminal based on NBIoT communication according to the present invention.
The notation in the figure is: the intelligent alarm comprises a household alarm 1, a signal conversion module 2, a 3-DC-DC voltage reduction module, a 4-NB module, a 5-MCU module, a 6-level conversion module and a 7-state indicator.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, a household gas collecting terminal based on NBIoT communication includes a power input terminal, a PWM signal input terminal, a DC-DC voltage reduction module 3, an NB module 4, a signal conversion module 2, an MCU module 5, a level conversion module 6, and a status indicator 7.
In this embodiment, domestic gas acquisition terminal has 7V power input and PWM signal input, and DC-DC voltage reduction module 3 connects power input, gives MCU module 5 and NB module 4 power supply respectively after pressing 7V into 3.3V.
The signal output part of the household alarm 1 only outputs low level and high resistance state for the output mode of leakage, and the signal line is required to be pulled up to 3.3V, and the low level can be lifted to 3.3V by the signal conversion module 2 with the triode, and then the signal output part is output to the MCU module 5.
MCU module 5's output signal level is 3.3V, and NB module 4's interface level is 1.8V, consequently need a level conversion module 6 to connect MCU module 5 and NB module 4 for the level of the interface between matching MCU module 5 and the NB module 4, MCU module 5's level can send the signal to the server high in the clouds through NB module 4 after the conversion like this, realize data upload, until returning a confirmation signal.
The MCU module 5 is also connected with a status indicator 7, so that the working condition of the whole terminal can be observed conveniently, the status indicator 7 specifically adopts an LED indicating lamp group, the MCU module 5 is responsible for controlling the LED indicating lamps to carry out status feedback, and the flickering of the LED indicating lamps with different frequencies is controlled according to the communication condition and the network condition.
The utility model discloses a core controller MCU module 5 and carry out the remote data transmission communication through NB module 4 and server high in the clouds, guaranteed data transmission's reliability.
The NBIoT communication-based household gas collection terminal provided by the present application is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the methods of the present application and their core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (3)
1. A household gas collecting terminal based on NBIoT communication is characterized by comprising a power supply input end, a PWM signal input end, a DC-DC voltage reduction module, an NB module, a signal conversion module, an MCU module, a level conversion module and a state indicator;
the DC-DC voltage reduction module is connected with a power supply input end and supplies power to the MCU module and the NB module respectively after voltage reduction, one end of the signal conversion module is connected with the PWM signal input end, and the other end of the signal conversion module is connected with the MCU module; one end of the level conversion module is connected with the MCU module, the other end of the level conversion module is connected with the NB module, the level conversion module is used for matching the level of an interface between the MCU module and the NB module, and the state indicator is connected with the MCU module.
2. The NBIoT communication-based household gas collection terminal as in claim 1, wherein the DC-DC voltage reduction module, the NB module, the signal conversion module, the MCU module, the level conversion module and the status indicator are integrated together to form the NBIoT communication-based household gas collection terminal.
3. The NBIoT communication-based home gas collection terminal in accordance with claim 1, wherein the status indicator is implemented as a LED light set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742452.0U CN213458384U (en) | 2020-11-24 | 2020-11-24 | Household gas collection terminal based on NBIoT communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022742452.0U CN213458384U (en) | 2020-11-24 | 2020-11-24 | Household gas collection terminal based on NBIoT communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213458384U true CN213458384U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022742452.0U Active CN213458384U (en) | 2020-11-24 | 2020-11-24 | Household gas collection terminal based on NBIoT communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213458384U (en) |
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2020
- 2020-11-24 CN CN202022742452.0U patent/CN213458384U/en active Active
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