CN214428054U - Security alarm system based on NB-IoT - Google Patents
Security alarm system based on NB-IoT Download PDFInfo
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- CN214428054U CN214428054U CN202023052098.5U CN202023052098U CN214428054U CN 214428054 U CN214428054 U CN 214428054U CN 202023052098 U CN202023052098 U CN 202023052098U CN 214428054 U CN214428054 U CN 214428054U
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Abstract
The utility model discloses a security protection alarm system based on NB-IoT, including host system and camera, a serial communication port, security protection alarm system is still including the first sensor that is used for the indoor external environment of perception, the second sensor that is used for the fire prediction, the third sensor and NB-IoT communication module that prevent the invasion, NB-IoT communication module includes NB-IoT communication module and NB-IoT communication module, first sensor is connected with NB-IoT communication module with STM32 singlechip, the second sensor is connected with NB-IoT communication module, the third sensor is connected with the camera. The utility model discloses can realize three functions such as disaster prevention, intrusion prevention and environmental perception to through communication and data transmission to the high in the clouds realization and customer end.
Description
Technical Field
The utility model relates to a security alarm system especially relates to a security alarm system based on NB-IoT.
Background
The intelligent home security alarm system in China has been developed to the present, but the problems of incomplete monitoring and insufficient intelligentization for preventing illegal invasion exist, the early illegal invasion prevention means is manual watching or the equipment such as anti-theft doors and windows are adopted, the advanced electronic and communication industry technologies are combined in the development process, the intelligentization of illegal invasion monitoring is realized by adopting a sensor or a camera device, but the defects of unclear alarm information and the need of 24-hour real-time watching of an attendant exist.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a security protection alarm system of NB-IoT internet of things.
The technical scheme is as follows: a security protection alarm system based on NB-IoT, including host system and camera, security protection alarm system is still including the first sensor that is used for the indoor outer environment of perception, a second sensor for fire prediction, prevent third sensor and NB-IoT communication module of invasion, NB-IoT communication module includes BC35-G NB-IoT communication module and SIM7020C NB-IoT HAT communication module, first sensor is connected with STM32 singlechip and BC35-G NB-IoT communication module, the second sensor is connected with SIM7020C NB-IoT communication module, the third sensor is connected with the camera.
The first sensor comprises an indoor sensor and an outdoor sensor, the indoor sensor comprises a sensor for sensing carbon monoxide, temperature and humidity, a carbon dioxide sensor and a noise sensor, and the outdoor sensor comprises a sensor for sensing air quality, wind speed and wind direction, an illumination sensor, an air pressure sensor and a noise sensor; the second sensor for fire prediction comprises a smoke alarm and a combustible gas alarm; the second sensor, the camera, the NB-IoT communication module and the raspberry pi are connected.
The utility model discloses in, the information after the STM32 singlechip will be handled sends to One NET cloud platform through NB-IoT basic station, and One NET cloud platform stores received information.
Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: the three functions of disaster prevention, intrusion prevention, environment perception and the like can be realized, and communication and data transmission with the client side are realized by transmitting data to the cloud side.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a hardware schematic diagram of the STM32 single chip microcomputer of the present invention;
FIG. 3 is a schematic view of a raspberry group terminal of the present invention;
fig. 4 shows a data reporting and command issuing process according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to fig. 1-4.
The security alarm system based on NB-IoT comprises a main control module and a camera, and further comprises a first sensor for sensing indoor and outdoor environments, a second sensor for fire forecasting, a third sensor for preventing intrusion and an NB-IoT communication module, wherein the NB-IoT communication module comprises a BC35-G NB-IoT communication module and a SIM7020C NB-IoT communication module, the first sensor is connected with an STM32 single chip microcomputer and the BC35-G NB-IoT communication module, the second sensor is connected with the SIM 7020C-NB-IoT communication module, and the third sensor is connected with the camera and used for detecting whether intrusion occurs.
The first sensor comprises an indoor sensor and an outdoor sensor, the indoor sensor comprises a sensor for sensing carbon monoxide and temperature and humidity, a carbon dioxide sensor and a noise sensor, and the outdoor sensor comprises a sensor for sensing air quality, wind speed and wind direction, an illumination sensor, an air pressure sensor and a noise sensor.
The second sensors for fire prediction include smoke alarms and combustible gas alarms.
The second sensor, camera, SIM7020C NB-IoT HAT communication module is connected with raspberry pi 4B. The CSI interface of the raspberry pi 4B peripheral is in butt joint with the camera, the general GPIO interface is in butt joint with the SIM7020C NB-IoT HAT module, the smoke sensor and the combustible gas alarm, and the state of the high and low level read-in pin is output through the pin to perform data interaction.
The STM32 singlechip sends the processed information to an One NET cloud platform through an NB-IoT base station, and the One NET cloud platform stores the received information.
Two types of sensors are selected, one is a first sensor used for sensing indoor and outdoor environments, and the sensor has no threshold value and can detect environmental data in real time. The sensor is connected to an STM32 singlechip, except for reporting commands regularly, the sensor also needs to upload according to received issuing commands, equipment with a register is selected, a sensing element generates data and then sends the data to the register, a main control module receives the issuing commands and then sends instructions to the register, and the register packs the current data to the main control module to realize the uploading of the commands. According to the requirement of the system environment sensing function, the sensor is used for detecting values of PM2.5, PM10, carbon monoxide, carbon dioxide, temperature and humidity, wind speed, wind direction, pressure, illumination, noise and the like. The other is a second sensor for fire prediction, which is capable of detecting the concentration of smoke and combustible gas in a house in real time, and transmits alarm information to a user side when the concentration exceeds a threshold value. Working voltage, detection range and accuracy of the sensor. The camera used for detecting the intrusion target is a raspberry-type camera, the number of pixels is 500 thousands, a 15PIN FFC (fringe field switching) cable is connected with a raspberry-type CSI (channel State information) interface, three application programs of raspigill, raspivid and raspistilyuv are provided inside the camera, and the raspivid program is responsible for capturing videos.
The sensors and the STM32 single chip microcomputer adopt RS-485 communication, the NB-IoT communication module receives information sent by the single chip microcomputer through a serial port, the four sensors have the same working voltage and are powered by one power supply module, and the single chip microcomputer and the BC35-G module are powered by the other power supply module. The STM32 singlechip is the master control module of hardware node, and serial ports 1 links TO each other with NB35-G NB-IoT module, and serial ports 3 links TO each other with the sensor, and the singlechip all adopts RS485 mode communication with sensor equipment, so add UART _ TO _ RS485 converting circuit in serial ports 3 department. In order to facilitate the search of the fault of the terminal node, the LED lamp is connected to display the power state of each part.
The terminal node based on the STM32 single chip microcomputer is required to receive the issued command of the user besides reporting data, and the terminal node based on the raspberry pi 4B only reports data. The data reporting process comprises the following steps: the terminal nodes independently complete data acquisition, the main control module reads data acquired by the terminal nodes, after the data are successfully read, the data packed according to a fixed format are written into a buffer area, the NB-IoT communication module is started, the module sends the data to an One NET cloud platform, and after the cloud platform receives the data, the data are pushed to a client APP through an HTTPS protocol. The command issuing only relates to a terminal node based on an STM32 single chip microcomputer, a user issues an issuing command through a client, a client APP sends a data packet containing the issuing command to an One NET cloud platform by remotely calling an API (application programming interface) of the One NET cloud platform, the One NET cloud platform issues the command to an NB-IoT (network b-Internet of things) communication module after analyzing the command, a main control module reads the command and sends a command for reporting data to a sensor internal register, and the register reports the currently stored data and has the same reporting flow.
Claims (5)
1. The security alarm system based on the NB-IoT comprises a main control module and a camera and is characterized by further comprising a first sensor for sensing indoor and outdoor environments, a second sensor for fire forecasting, a third sensor for preventing intrusion and an NB-IoT communication module, wherein the NB-IoT communication module comprises a BC35-G NB-IoT communication module and a SIM7020C NB-IoT communication module, the first sensor is connected with an STM32 single chip microcomputer and the BC35-GNB-IoT communication module, the second sensor is connected with the SIM7020C NB-IoT communication module, and the third sensor is connected with the camera.
2. The NB-IoT based security alarm system of claim 1, wherein the first sensor comprises an indoor sensor and an outdoor sensor, the indoor sensor comprises a carbon monoxide and temperature and humidity sensor, a carbon dioxide sensor and a noise sensor, and the outdoor sensor comprises an air quality, wind speed and wind direction sensor, an illumination sensor, an air pressure sensor and a noise sensor.
3. The NB-IoT based security alarm system according to claim 1, wherein the second sensors for fire prediction comprise smoke alarms and combustible gas alarms.
4. The NB-IoT based security alarm system according to claim 1, wherein the second sensor, the camera, the NB-IoT communication module are connected with a raspberry pi.
5. The NB-IoT-based security alarm system as claimed in claim 1, wherein the STM32 single chip microcomputer sends the processed information to an One NET cloud platform through an NB-IoT base station, and the One NET cloud platform stores the received information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023052098.5U CN214428054U (en) | 2020-12-17 | 2020-12-17 | Security alarm system based on NB-IoT |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023052098.5U CN214428054U (en) | 2020-12-17 | 2020-12-17 | Security alarm system based on NB-IoT |
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| CN214428054U true CN214428054U (en) | 2021-10-19 |
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| CN202023052098.5U Active CN214428054U (en) | 2020-12-17 | 2020-12-17 | Security alarm system based on NB-IoT |
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Effective date of registration: 20220601 Address after: No. 8, Taishan Road, Jianye District, Nanjing, Jiangsu 210000 Patentee after: Nanjing Tongke Technology Development Co.,Ltd. Address before: 210044 No. 219 Ning six road, Jiangbei new district, Nanjing, Jiangsu Patentee before: NANJING University OF INFORMATION SCIENCE & TECHNOLOGY |
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