Smart home security system based on NB-IOT and GSM

Abstract

The utility model discloses a smart home security system based on NB-IOT (Narrow Band Internet of Things) and GSM (Global System for Mobile Communications), which comprises a sensing module, an evaluation module, user equipment and an alarm device, the sensing module is used for collecting field real-time data and transmitting the real-time data to the evaluation module; the evaluation module is used for setting a threshold value for the real-time data, and when the real-time data exceed the set threshold value, early warning information is formed and transmitted to the user equipment and the alarm device; wherein the sensing module comprises a temperature sensor, a smoke sensor and a water pressure sensor; a user can take measures for avoiding patients in time, and remote control can be carried out on the cloud server, so that the home security system is more intelligent.

Description

Technical Field

[0001] The utility model relates to the field of security alarm systems, in particular to an intelligent home security system based on NB-IOT and GSM. Background Art

[0002] At present, home security products on the market are generally single-function products, such as human body sensing burglar alarms, smoke alarms, gas leak alarms, etc. These products have shortcomings such as single function, inability to expand, need for wired connection, and low intelligence. High-end smart home systems are generally imported products, mostly wired connections, complex construction, often integrated with building decoration, expensive, and the core hardware of the design is relatively simple, and its status cannot be well monitored in real time. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a technical solution for a smart home security system based on NB-IOT and GSM that can solve the above-mentioned problems.

[0004] As a further solution of the utility model: a smart home security system based on NB-IOT and GSM, the system comprises: a perception module, an evaluation module, a user device and an alarm device, the perception module is communicatively connected to the evaluation module, the evaluation module is communicatively connected to the user device and the alarm device, wherein;

[0005] The perception module is used to collect real-time data on site and transmit the real-time data to the evaluation module;

[0006] The evaluation module is used to set a threshold for real-time data. When the real-time data exceeds the set threshold, a warning message is generated and transmitted to the user equipment and the alarm device;

[0007] Among them, the sensing module includes a temperature sensor, a smoke sensor and a water pressure sensor.

[0008] Preferably, the sensing modules collect real-time data of temperature, smoke and water pressure through A / D conversion and mutual data communication.

[0009] Preferably, the evaluation module comprises an STM32 single chip microcomputer, and the STM32 single chip microcomputer is used to set thresholds for real-time data of temperature, smoke and water pressure, and to perform real-time monitoring and processing.

[0010] Preferably, the smart home security system based on NB-IOT and GSM includes a GSM module, and the STM32 microcontroller is used to transmit the warning information to the user equipment through the GSM module.

[0011] Preferably, the smart home security system based on NB-IOT and GSM includes a NB-IOT module, a cloud server and an execution device. The evaluation module transmits real-time data to the cloud server through the NB-IOT module. The cloud server is used to analyze the real-time data. If the data is abnormal, instructions are transmitted to the execution device via the Internet.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By setting up the perception module to obtain real-time data on site, the real-time data can be monitored in real time. The monitoring data can be transmitted to the user's device through the GSM module, and the user can take timely avoidance measures. At the same time, the monitoring data is also transmitted to the cloud server through the NB-IOT module. The user can remotely control it on the cloud server, making the home security system more intelligent.

[0014] 2. Based on NB-IoT technology, each module can communicate independently without wired connection, with low power consumption and low cost, and can realize real-time monitoring of environmental information, cloud storage, timely warning and remote control.

[0015] 3. Using the STM32 microcontroller as the core controller of the system, and utilizing its efficient processing capabilities and rich interface resources, the smoke data, temperature data and water pressure data can be monitored and processed in real time, the smoke concentration and temperature thresholds can be set, and it can be determined whether they exceed the safety range and trigger the corresponding alarm mechanism. It can expand multiple data monitoring and provide more comprehensive protection in the field of home security.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is an overall connection schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 3 It is a flow chart of system design of the utility model.

[0021] In the figure: 1. Perception module, 2. Evaluation module, 3. User equipment, 4. Alarm device. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 In an embodiment of the utility model, a smart home security system based on NB-IOT and GSM includes: a perception module 1, an evaluation module 2, a user device 3 and an alarm device 4, wherein the perception module 1 is communicatively connected to the evaluation module 2, and the evaluation module 2 is communicatively connected to the user device 3 and the alarm device 4, wherein the line communication connection mode between each module includes but is not limited to mobile communication (4G, 5G), wireless local area network (WiFi) and other wireless communications, etc.;

[0024] The perception module 1 is used to collect real-time data on site and transmit the real-time data to the evaluation module 2, wherein the perception module 1 can transmit the real-time data to the evaluation module 2 via wireless Bluetooth or Internet transmission;

[0025] The evaluation module 2 is used to set a threshold value for the real-time data. When the real-time data exceeds the set threshold value, a warning message is generated and transmitted to the user device 3 and the alarm device 4, wherein the user device 3 includes but is not limited to a mobile terminal, a personal computer PC, and an Internet phone, and the alarm device 4 includes but is not limited to an audible alarm, a light alarm, or a vibration alarm;

[0026] Among them, the sensing module 1 includes a temperature sensor, a smoke sensor and a water pressure sensor; the sensing module 1 collects real-time data of temperature, smoke and water pressure through A / D conversion and mutual data communication.

[0027] Further Figures 1-2 As shown, the evaluation module 2 includes an STM32 single-chip microcomputer, which is used to set thresholds for real-time data of temperature, smoke and water pressure, and to perform real-time monitoring and processing; in combination with functional requirements and costs, the STM32 single-chip microcomputer is used as the core controller of the system, and its rich interface resources with efficient processing capabilities are used to perform real-time monitoring and processing of smoke data and temperature data, set smoke concentration, temperature and water pressure thresholds, determine whether they exceed the safety range, and trigger the corresponding alarm device 4;

[0028] In one embodiment of the utility model, the temperature sensor can adopt DS18B20 digital temperature sensor, which is a single bus interface, economical, strong anti-interference ability, easy to use, and suitable for on-site temperature measurement in harsh environments. It also has a wide temperature measurement range, an accuracy of up to ±0.5°C, supports multi-point networking function, flexible power supply mode, and power-off protection function; the temperature sensor collects on-site environmental temperature data, and uses the STM32 single-chip microcomputer as the core controller of the system to set a suitable temperature threshold to determine whether it exceeds the safety range, and as a condition for triggering the alarm device 4;

[0029] In one embodiment of the utility model, the smoke sensor can adopt the MQ-2 type smoke sensor, which uses tin dioxide gas-sensitive material, has a long life, low cost, fast response, and a simple driving circuit. When there is combustible gas or smoke in the environment, the conductivity of the smoke sensor increases with the increase of the concentration of the combustible gas. The STM32 single-chip microcomputer is used as the core controller of the system to set a suitable smoke concentration threshold to determine whether it exceeds the safety range, and as a condition for triggering the alarm device 4;

[0030] In one embodiment of the utility model, the water pressure sensor is used to collect the water pressure of the on-site fire hydrant, thereby judging whether the fire-fighting facilities are working normally. Too low water pressure of the fire hydrant will affect the water supply for fire rescue, and too high water pressure will affect the service life of the fire hydrant. The PCM300 pressure transmitter can be used, and the built-in processing circuit converts the sensor millivolt signal into a standard voltage and current signal. It has a wide range, stable performance, and extremely high seismic resistance and impact resistance.

[0031] Further Figures 1-2 As shown, the smart home security system based on NB-IOT and GSM includes a GSM module, and the STM32 microcontroller is used to transmit the warning information to the user device 3 through the GSM module; the GSM module adopts the ATK-SIM800C module, which is a quad-band high-performance GSM / GPRS module with an operating frequency band of 850, 900, 1800, and 1900 MHz, supports two short message modes, text and PDU, supports LVTTL serial port (compatible with 3.5V and 5.0V control systems), supports RS232 communication, and is convenient for communication and debugging with a computer. In this system, the SIM800C module communicates with the main controller STM32 through the serial port.

[0032] Further Figures 1-2As shown, the smart home security system based on NB-IOT and GSM includes an NB-IOT module, a cloud server and an execution device. The evaluation module 2 transmits real-time data to the cloud server through the NB-IOT module. The cloud server is used to analyze the real-time data. If the data is abnormal, the instruction is transmitted to the execution device through the Internet; the user can view the signal data collected by each sensor in real time through the cloud server. When the data is abnormal, the execution device can be controlled through the instruction issued by the cloud server. The execution device includes but is not limited to a water sprinkler fire extinguishing device, a water spray fire extinguishing device, a gas fire extinguishing device, a dry powder fire extinguishing device and a foam fire extinguishing device.

[0033] The working principle of the utility model is: the user starts the temperature, smoke, water pressure and other sensors, and collects real-time data such as temperature, smoke and water pressure through A / D conversion and mutual data communication. The evaluation module 2 determines whether the on-site information collected by the temperature, smoke, water pressure and other sensors exceeds the threshold. If the threshold is exceeded, the alarm is activated, and a text message is sent to the user's mobile phone via GSM. At the same time, the collected real-time data is uploaded to the cloud server. The user can view the signal data collected by each sensor in real time through the cloud server. When the data is found to be abnormal, the execution device can be controlled through the instructions issued by the cloud server.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A smart home security system based on NB-IOT and GSM, characterized in that: The system comprises: a perception module, an evaluation module, a user device and an alarm device, wherein the perception module is communicatively connected to the evaluation module, and the evaluation module is communicatively connected to the user device and the alarm device, wherein; The perception module is used to collect real-time data on site and transmit the real-time data to the evaluation module; The evaluation module is used to set a threshold value for real-time data, and when the real-time data exceeds the set threshold value, a warning message is generated and transmitted to the user equipment and the alarm device; the evaluation module includes an STM32 single-chip microcomputer, and the STM32 single-chip microcomputer is used to set a threshold value for the real-time data of temperature, smoke and water pressure, and perform real-time monitoring and processing; Wherein, the sensing module includes a temperature sensor, a smoke sensor, and a water pressure sensor; The system also includes an NB-IOT module, a cloud server and an execution device. The evaluation module transmits real-time data to the cloud server through the NB-IOT module. The cloud server is used to analyze the real-time data. If the real-time data is abnormal, instructions are transmitted to the execution device via the Internet.

2. The smart home security system based on NB-IOT and GSM according to claim 1, characterized in that: The sensing modules collect real-time data of temperature, smoke and water pressure through A / D conversion and mutual data communication.

3. The smart home security system based on NB-IOT and GSM according to claim 1, characterized in that: The system includes a GSM module, and the STM32 single-chip microcomputer is used to transmit the warning information to the user equipment through the GSM module.

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