Intelligent door and window anti-theft alarm device based on Internet of Things
The IoT-based smart door and window anti-theft alarm device, which uses a combination of reed switches and magnetic plates, can monitor and warn of abnormal opening of doors and windows in real time. This solves the problem that traditional door and window anti-theft methods cannot provide timely notifications and achieves efficient remote monitoring and warning functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XINDA INTELLIGENT INTERNET OF THINGS TECH SERVICE CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional door and window security methods cannot monitor and notify users in real time, leading to property loss.
The device employs an IoT-based smart door and window burglar alarm system. It utilizes a combination of reed switches and magnetic plates to monitor the status of doors and windows in real time. The system notifies users of any abnormal openings via a control module and a wireless communication module, and provides warnings through sound, light, and surveillance cameras.
It enables timely alerts and remote monitoring when doors and windows are opened abnormally, improving home security and the level of intelligent anti-theft measures.
Smart Images

Figure CN224248171U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent alarm equipment technology, specifically relating to an intelligent door and window anti-theft alarm device based on the Internet of Things. Background Technology
[0002] As people's living standards improve, they are paying increasing attention to home security. Traditional door and window security mainly relies on mechanical locks, which has certain limitations. It cannot monitor the status of doors and windows in real time, and cannot promptly notify users when doors and windows are illegally opened, leading to property loss. With the rapid development of Internet of Things (IoT) technology, its application to door and window security alarm systems can achieve remote monitoring and real-time alarms, improving the intelligence level of door and window security. In view of this, this solution was developed. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide an intelligent door and window anti-theft alarm device based on the Internet of Things, which can provide timely warnings when doors and windows are abnormally opened.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an intelligent door and window anti-theft alarm device based on the Internet of Things, including a reed switch, a magnetic plate, a control module, a wireless communication module and an alarm module. The reed switch is embedded in the door frame body or the window frame body. The magnetic plate is installed on the door body or the window body. When the door body and the door frame body are closed or the window body and the window frame body are closed, the magnetic plate approaches the reed switch and the reed switch contacts are closed.
[0005] The control module is electrically connected to the reed switch and is also communicatively connected to the wireless communication module. The alarm module issues a warning upon receiving a notification of abnormal opening of the reed switch via the control module.
[0006] Furthermore, the control module includes a control chip, which has a sensor interface for connecting to a reed switch.
[0007] Furthermore, the alarm module includes an audio source alarm, a light source alarm, and a monitoring camera, which are installed on the outside of the door body.
[0008] Furthermore, the reed switch includes a first housing and a magnetic sensor. The first housing has a mounting cavity with one side extending through the surface of the first housing. Two spaced-apart brackets are provided inside the mounting cavity, and the magnetic sensor is mounted between the two brackets. A wire hole is provided inside the mounting cavity.
[0009] Furthermore, the card holder includes two vertical plates, which are spaced apart. An arc-shaped groove is formed in the middle of the side of the two vertical plates facing each other, and the magnetic sensor is positioned between its two ends and the arc-shaped grooves on the two card holders respectively.
[0010] Furthermore, the magnetic sensor is a reed switch.
[0011] Furthermore, a shock-absorbing pad is provided at the bottom of the mounting cavity, and the shock-absorbing pad is in contact with the surface of the magnetic sensor.
[0012] Furthermore, the magnetic plate includes a base and a magnet. A limiting mounting groove is formed on the base. The magnet is detachably connected to the limiting mounting groove. When the door body and the door frame body are closed, or when the window body and the window frame body are closed, the magnet extends into the mounting cavity.
[0013] Furthermore, the magnet is a magnet.
[0014] Furthermore, the vertical projection of the mounting groove covers the vertical projection of the base.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This utility model provides an intelligent door and window anti-theft alarm device based on the Internet of Things. When the door or window body is opened abnormally, the magnetic plate moves away from the reed switch located in the door or window frame as the door or window body opens, causing the contact in the reed switch to disconnect. After the control module detects the disconnection of the contact, it sends a signal to the wireless communication module and the alarm module. The wireless communication module is used to indicate that someone has broken in, and the alarm module is used to warn the intruder. Attached Figure Description
[0017] Figure 1 This is a flowchart illustrating the signal transmission between the components of this utility model.
[0018] Figure 2 This is a schematic diagram of the separate structure of the reed switch and the magnetic plate in this utility model;
[0019] Figure 3 This is a schematic diagram of the split structure of the reed switch and magnetic plate in another direction in this utility model;
[0020] Figure 4 This is a cross-sectional view of the reed switch and magnetic plate of this utility model installed on windows and doors.
[0021] The markings in the diagram are: 1. Reed switch; 11. First housing; 111. Mounting cavity; 112. Vertical plate; 113. Arc-shaped groove; 12. Magnetic sensor; 2. Magnetic plate; 21. Base; 22. Magnet. Detailed Implementation
[0022] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0023] like Figures 1-4 As shown, this embodiment provides an IoT-based smart door and window burglar alarm device, including a reed switch 1, a magnetic plate 2, a control module, a wireless communication module, and an alarm module.
[0024] A reed switch 1 is embedded in the main body of a door frame or window frame. A groove is made in the main body of the door frame or window frame. If the wall thickness of the main body of the door frame or window frame is relatively thin, the groove is made into the wall. The reed switch 1 includes a first housing 11 and a magnetic sensor 12. The magnetic sensor 12 is a reed switch. The first housing 11 is installed in the groove. The first housing 11 has a mounting cavity 111. One side of the mounting cavity 111 extends through the surface of the first housing 11. Two spaced-apart brackets are provided in the mounting cavity 111. The magnetic sensor 12 is mounted between the two brackets. Specifically, the brackets include two vertical plates 112, which are spaced apart. An arc-shaped groove 113 is formed in the middle of the facing side of the two vertical plates 112. The two ends of the magnetic sensor 12 are between the arc-shaped grooves 113 on which the two brackets are respectively mounted. A wire hole is provided in the mounting cavity 111.
[0025] Preferably, a shock-absorbing pad (not shown in the figure) is provided at the bottom of the mounting cavity 111. The shock-absorbing pad is in contact with the surface of the magnetic sensor 12. The shock-absorbing pad can be made of cotton or silicone to prevent the magnetic sensor 12 from being damaged during the opening and closing of the door and window body.
[0026] The door body and window body are provided with receiving grooves. The magnetic plate 2 includes a base 21 and a magnet 22. The magnet 22 is a magnet. The base 21 is installed in the receiving groove. A limiting installation groove is formed on the base 21. The magnet 22 can be detachably connected in the limiting installation groove. When the door body and the door frame body are closed or the window body and the window frame body are closed, the magnet 22 extends into the installation cavity 111. When the door body and the door frame body are closed or the window body and the window frame body are closed, the magnetic plate 2 is close to the reed switch 1 and the reed switch 1 is energized and closed.
[0027] Preferably, the vertical projection of the mounting groove covers the vertical projection of the base 21, ensuring that the base 21 and the magnet 22 can be smoothly inserted into the mounting cavity 111.
[0028] The control module is used for electrical connection with the reed switch 1. Specifically, the control module includes a control chip, which is a Micro-Control-Unit (MCU) chip. The control chip has a sensor interface, which is connected to the reed switch 1 via a cable. The control chip integrates a remote signal transmission module, which communicates with a wireless communication module. The terminals of the wireless communication module are user mobile phones and property management terminal equipment.
[0029] The alarm module receives a warning from the control module when the reed switch 1 is abnormally opened. Specifically, the alarm module includes an audio source alarm, a light source alarm, and a monitoring camera. The audio source alarm, light source alarm, and monitoring camera are installed on the outside of the door body. The audio source alarm and light source alarm warn intruders, and the monitoring camera is used to take pictures of intruders.
[0030] Working principle: In this solution, corresponding sensors are installed in the opening areas of both the door and window to detect whether the door is being opened by a person and to send signals to the control chip in real time. When the door or window is opened normally, the contacts of the reed switch 1 are open, and the control chip will not send signals to the alarm module and the wireless communication module. Only when the door or window is opened abnormally will the control chip send signals to the alarm module and the wireless communication module.
[0031] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. An intelligent door and window burglar alarm device based on the Internet of Things, characterized in that: It includes a reed switch, a magnetic plate, a control module, a wireless communication module, and an alarm module. The reed switch is embedded in the door frame or window frame. The magnetic plate is installed on the door or window frame. When the door and door frame are closed or the window and window frame are closed, the magnetic plate approaches the reed switch and the reed switch is energized and closed. The control module is electrically connected to the reed switch, the control module is communicatively connected to the wireless communication module, and the alarm module issues a warning upon receiving a notification of abnormal opening of the reed switch via the control module. The reed switch includes a first housing and a magnetic sensor. The first housing has a mounting cavity with one side extending through the surface of the first housing. Two spaced-apart slots are provided inside the mounting cavity, and the magnetic sensor is secured between the two slots. A wire hole is provided inside the mounting cavity. The card holder includes two vertical plates, which are spaced apart. An arc-shaped groove is formed in the middle of the side of the two vertical plates facing each other. The magnetic sensor is located between its two ends and the arc-shaped grooves on the two card holders respectively. A shock-absorbing pad is provided at the bottom of the mounting cavity, and the shock-absorbing pad is in contact with the surface of the magnetic sensor; The magnetic plate includes a base and a magnet. A limiting installation groove is formed on the base. The magnet can be detachably connected to the limiting installation groove. When the door body and the door frame body are closed, or when the window body and the window frame body are closed, the magnet extends into the installation cavity.
2. The IoT-based intelligent door and window burglar alarm device according to claim 1, characterized in that: The control module includes a control chip, which has a sensor interface for connecting to a reed switch.
3. The IoT-based intelligent door and window burglar alarm device according to claim 2, characterized in that: The alarm module includes an audio source alarm, a light source alarm, and a monitoring camera, which are installed on the outside of the door body.
4. The IoT-based intelligent door and window burglar alarm device according to claim 1, characterized in that: The magnetic sensor is a reed switch.
5. The IoT-based intelligent door and window burglar alarm device according to claim 1, characterized in that: The magnet is a magnet.
6. The IoT-based intelligent door and window burglar alarm device according to claim 1, characterized in that: The vertical projection of the mounting groove covers the vertical projection of the base.