A factory smoke automatic alarm system based on internet of things

Abstract

This utility model belongs to the field of fire alarm technology, specifically relating to an automatic smoke alarm system for factories based on the Internet of Things (IoT). By integrating multiple devices, encompassing smoke detection, open flame detection, temperature monitoring, and intelligent device linkage control, it improves equipment integration and intelligence, while reducing costs and maintenance difficulty. Simultaneously, wireless communication reduces wiring, improving installation efficiency and saving costs. The various devices in this utility model have clearly defined functions yet work collaboratively. The smoke detector accurately locates the smoke and promptly alerts the user; the open flame / temperature detector monitors open flames and temperature in real time, triggering audible and visual alarms when thresholds are exceeded; the intelligent device linkage controller cuts off power and activates the camera based on detected values, preventing safety issues and facilitating cause analysis; the smoke detection intelligent monitoring platform is feature-rich, achieving comprehensive monitoring; the overall system forms a highly efficient intelligent protection network, effectively safeguarding the safety of personnel and property in the factory.

Description

Technical Field

[0001] This utility model belongs to the field of fire alarm technology, specifically relating to an automatic smoke alarm system for factories based on the Internet of Things. Background Technology

[0002] Automatic smoke alarm devices, also known as fire smoke detectors, smoke sensors, or smoke sensors, play a crucial role in fire prevention as urbanization accelerates and building structures become increasingly complex, making fire prevention a key aspect of protecting life and property.

[0003] Currently, traditional smoke alarm devices are mainly divided into two categories: The first is the stand-alone smoke alarm, typically battery-powered, which emits an audible and visual alarm upon detecting smoke. This type is commonly found in small residences and shops due to its convenient installation and independent operation, providing basic fire early warning for individual spaces. While easy to install, this type has limited functionality, cannot achieve remote alarm or multi-device linkage, and its alarms are easily overlooked in noisy environments such as factories. The second type is the bus-based smoke alarm system, powered by a bus. Multiple such devices can be connected to a single bus, networking and communicating with the fire alarm controller to form a large and sophisticated alarm system. When an alarm occurs, the on-site detectors operate silently to avoid confusion, while the main unit provides audible and visual alerts for quick detection by monitoring personnel. This type is commonly used in large commercial buildings, office buildings, industrial plants, and other complex environments with large areas and multiple zones to ensure overall fire safety monitoring. While this type of device allows for centralized monitoring, it suffers from complex wiring, high construction costs, difficult maintenance, and poor functional expandability.

[0004] It is evident that traditional automatic smoke alarm devices also exhibit several shortcomings. Firstly, their functionality is relatively limited; most products only provide basic smoke detection and alarm functions, lacking the ability to integrate with other security and smart devices. Secondly, their sensitivity is limited, and they are prone to false alarms or missed alarms in complex factory environments, such as those caused by dust from machinery or electromagnetic radiation, failing to accurately and promptly capture smoke signals from actual fire hazards. More importantly, traditional devices lack video recording capabilities. Once an alarm occurs, it is difficult to reconstruct the actual situation at the scene afterward, hindering the analysis of the fire's cause and development, and causing significant inconvenience for fire rescue and accident investigation. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model proposes an automatic smoke alarm system for factories based on the Internet of Things. The purpose is to achieve intelligent integration of smoke detection, temperature / open flame monitoring, video surveillance and emergency response, thereby realizing multi-sensor fusion and intelligent linkage, and solving the problems of traditional alarm systems such as single function, easy false alarms and lack of traceability.

[0006] This utility model discloses a technical solution for an automatic smoke alarm system for factories based on the Internet of Things, including a smoke detection alarm device, a smoke detection intelligent monitoring platform, and a transmission network connecting the two.

[0007] The smoke detection alarm device includes a smoke detector alarm, an open flame / temperature detector wirelessly connected to the smoke detector alarm, and an intelligent device linkage controller wirelessly connected to the open flame / temperature detector;

[0008] The intelligent smoke detection monitoring platform includes a system server, a PC client, and a mobile application.

[0009] The transmission network includes wired networks and wireless networks.

[0010] Preferably, the smoke detector alarm includes a first device housing, a plug adapter, a first control panel, a buzzer, and a light alarm; the plug adapter is disposed on the first device housing and is spot-welded to the neutral and live wires of the first control panel via a power cord; the first control panel is fixed to the first device housing by bolts, and the first control panel is electrically connected to the buzzer and the light alarm.

[0011] Preferably, the main components of the first control panel include a built-in antenna, a storage circuit, a microcontroller, a positioning and orientation calculation circuit, a display driver circuit, and a power management circuit; its peripheral interfaces include a smoke sensor interface circuit, a buzzer driver circuit, and a light alarm circuit.

[0012] Preferably, the open flame / temperature detector includes a second device housing, a second control panel, an array infrared temperature measurement module, and an open flame detection sensor; the second control panel is disposed on the second device housing and is electrically connected to the array infrared temperature measurement module and the open flame detection sensor.

[0013] Preferably, the main components of the second control panel include a built-in antenna, a storage circuit, a microcontroller, a multi-function setting key, a temperature display driving circuit, a power management circuit, and an alarm circuit; its peripheral interfaces include an array infrared temperature measurement module socket and an open flame detection sensor interface circuit.

[0014] Preferably, the intelligent device linkage controller includes a third device housing, a camera module, a third control panel, and a first external antenna; the third control panel is disposed on the third device housing and is electrically connected to the camera module and the first external antenna.

[0015] Preferably, the third device housing is composed of a housing body and a second housing back plate; the housing body is provided with an exposed LED indicator hole and an external antenna interface hole; the lower edge of the housing body is also provided with an input / output line outlet; the inside of the housing body is connected to the control board by fixing bolts; the two sides of the housing body are connected to the second housing back plate by bolts; the second housing back plate is provided with wall-mounting mounting holes.

[0016] Preferably, the main components of the third control panel include a video storage and transmission circuit, a storage circuit, a microcontroller, a camera module interface circuit, and a power management circuit; its peripheral interfaces include an AC power supply interface, a switch signal acquisition port, a linkage control port, and an external antenna interface.

[0017] Preferably, the smoke detection intelligent monitoring platform further includes intelligent monitoring equipment, online video monitoring equipment, voice intercom equipment, comprehensive analysis and processing equipment, intelligent alarm control equipment, and network communication transmission equipment.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model not only collects smoke concentration data through smoke detectors and alarms, but also comprehensively monitors the fire risk of the factory through open flame / temperature detectors and intelligent device linkage controllers. It can clearly show the causal relationship, development pattern and emergency correlation between smoke generation, temperature rise and open flame formation. Managers can have a comprehensive understanding of the complex process of fire development from an overall perspective, avoid the limitations of single device monitoring, and improve the overall effect of fire early warning and response.

[0020] 2. The smoke detection intelligent monitoring platform of this utility model integrates data from front-end devices to provide comprehensive support for fire emergency decision-making, greatly reducing resource waste caused by false alarms; it saves on factory safety management costs, reduces the emergency burden on personnel, and optimizes the allocation of fire protection resources; at the same time, it reduces wiring by using wireless communication, improves installation efficiency and saves costs; through data integration and analysis of the platform, it also promotes information sharing and collaboration among various equipment modules, which helps to improve the overall fire prevention level.

[0021] 3. This utility model can promptly detect fire hazards in factory buildings, reducing the risk of fire spread and safety accidents. In addition, it can rationally allocate emergency resources according to the risk level. Low-risk situations can be handled through local alarms, while medium- and high-risk situations can trigger a remote monitoring platform for collaborative response. In case of emergency, it can automatically cut off the power and activate the camera, avoiding the waste and excessive concentration of fire-fighting resources and improving the efficiency of resource utilization.

[0022] 4. This utility model enables information sharing and collaborative cooperation among on-site equipment, management personnel, and emergency response teams through transmission networks and multi-terminal interaction. On-site personnel can receive timely alarm alerts and handling guidance; management personnel can improve decision-making efficiency with the help of the remote monitoring platform; and emergency response teams can also obtain real-time on-site data through the platform to achieve remote command. Attached Figure Description

[0023] Figure 1 This is a flowchart of an automatic smoke alarm system for a factory, according to any embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of a smoke detector alarm according to any embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of an open flame / temperature detector according to any embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of an intelligent device linkage controller according to any embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of a smoke detection intelligent monitoring platform according to any embodiment of the present utility model. Detailed Implementation

[0028] To better understand the content of this utility model, specific embodiments will be used to further illustrate it below. The following embodiments are based on the technology of this utility model and provide detailed implementation methods and operating steps. However, the scope of protection of this utility model is not limited to the following embodiments; that is, all other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Please see Figure 1 This utility model discloses an automatic smoke alarm system for factories based on the Internet of Things, including a smoke detection alarm device, a smoke detection intelligent monitoring platform, and a transmission network connecting the two.

[0030] The smoke detection alarm device is the front-end sensing and execution unit (i.e., the front-end device) of the system, consisting of three wirelessly cooperating sub-devices: a smoke detector alarm, an open flame / temperature detector, and an intelligent device linkage controller. These sub-devices interact with each other wirelessly and ultimately communicate with the smoke detection intelligent monitoring platform through a transmission network.

[0031] The intelligent smoke detection monitoring platform (i.e., the backend platform) includes a system server, a PC client, and a mobile application. The platform receives data from all front-end devices, stores, analyzes, and displays it, and triggers alarms and issues control commands based on preset logic. Users can view the factory status in real time, receive alarm information, play back recordings, and perform remote control via the PC client or mobile application (phone APP).

[0032] The transmission network includes wired and wireless networks, ensuring stable and reliable communication between front-end devices and back-end platforms.

[0033] Please see Figure 2 As one embodiment of this utility model, the smoke detector alarm specifically includes: a first device housing, a plug conversion device, a first control panel, a buzzer, and a light alarm; it is used to automatically detect and determine online whether smoke is generated and the location of the smoke. If smoke is generated, it will issue a smoke generation location reminder and sound and light prompts on the user's mobile terminal. If the user fails to handle the situation in time within a limited time, resulting in an open flame, it will automatically alarm according to the factory temperature at that time.

[0034] Furthermore, the housing of the first device can be made of aluminum alloy to ensure stable operation of the device in situations with high heat dissipation requirements, while also possessing high strength and light weight. Functionally, it has physical protection functions, preventing collisions, squeezing, dust, and moisture, and ensuring the normal operation of internal components; it has electrical isolation functions, providing insulation protection and preventing short circuits; it combines aesthetics and integration, blending into different environments and integrating components for easy installation and maintenance; it can also assist in the realization of functions, optimizing sound propagation and enhancing light scattering effects through specific design.

[0035] Furthermore, the plug adapter is disposed on the housing of the first device and is spot-welded to the neutral and live wires of the first control panel via a power cord. The first control panel is fixed to the housing of the first device by bolts.

[0036] Furthermore, the main components of the first control panel include a built-in antenna, a storage circuit, a microcontroller, a positioning and orientation calculation circuit, a display driver circuit, and a power management circuit; the peripheral interfaces of the first control panel include a smoke sensor interface circuit, a buzzer driver circuit, and a light alarm circuit.

[0037] In practical applications, the main devices and peripheral interfaces of the first control panel work closely together to realize the function of the smoke detector alarm. The built-in antenna connects to the wireless communication module to enable wireless signal transmission and reception with external devices, ensuring data transmission and command interaction. The storage circuit stores the data and programs required for operation, which the microcontroller can read and write during system initialization, operation, and querying. The microcontroller, as the core, receives and processes data from sensors and interface circuits, judges the smoke situation, controls the peripheral interfaces, and is also responsible for external communication. The positioning and orientation calculation circuit combines signals from multiple smoke sensors and uses algorithms to calculate the smoke location for the microcontroller's decision-making. The display driver circuit drives the display device based on the digital signals sent by the microcontroller, intuitively presenting relevant information. The power management circuit converts, regulates, and distributes the input power, providing power to various components and saving energy. In the peripheral interfaces, the smoke sensor interface circuit preprocesses the analog signals from the smoke sensors, converting them into digital signals for the microcontroller to process. The buzzer driver circuit provides appropriate drive to the buzzer when the microcontroller issues an alarm signal, controlling the sound mode. The light alarm circuit drives the light alarm device based on the microcontroller's control signals, conveying alarm information by changing the light's on / off and flashing frequency.

[0038] Please see Figure 3 As one embodiment of this utility model, the open flame / temperature detector is an open flame detection and temperature monitoring device of the IoT-based automatic smoke alarm system for factories, specifically including: a second equipment shell, an array infrared temperature measurement module, a second control panel, and an open flame detection sensor; it is used to automatically detect and determine whether an open flame is generated and the open flame status online, and to automatically measure and display the factory temperature after an open flame is generated online; when the factory temperature reaches the alarm threshold, it can automatically trigger an alarm.

[0039] Furthermore, the second device housing is made of polycarbonate (PC), which, with its excellent impact resistance, heat resistance, high transparency, and achievable flame retardant properties, is suitable for applications requiring protection of internal precision components, handling of high-temperature environments, and easy observation of internal conditions. It can be injection molded into an ergonomically designed transparent housing. An array infrared temperature sensor detection window and an open flame detection window can be located at the center of the upper part of the transparent housing. A digital display window is located in the middle of the transparent housing, an LED indicator window is located on one side of the upper part of the transparent housing, and an LED warning light window is located at the bottom of the transparent housing. The second control panel is fixed to the second device housing with bolts.

[0040] Furthermore, the main components of the second control panel include a built-in antenna, storage circuit, microcontroller, multi-function setting key, temperature display driver circuit, power management circuit, and alarm circuit. The peripheral interfaces of the second control panel include an array infrared temperature measurement module interface and an open flame detection sensor interface circuit.

[0041] In practical applications, the main devices and peripheral interfaces of the second control panel work together to realize the various functions of the open flame / temperature detector. An internal antenna connects to a wireless communication module to transmit and receive wireless signals, ensuring data interaction and remote control with other devices. A storage circuit stores operating parameters and historical data for the microcontroller to access during system startup, operation, and querying. The microcontroller, as the core, receives and processes multi-source signals, determines the open flame and temperature status, controls peripherals, and communicates with external systems. A multi-function setting key allows users to manually adjust device parameters, which are then processed by the microcontroller and saved to the storage circuit. A temperature display driver circuit converts the temperature data from the microcontroller into a visual display. A power management circuit processes the input power, providing stable power to all components and saving energy. An alarm circuit, triggered by the microcontroller, drives an audible and visual alarm. Among the peripheral interfaces, the array infrared temperature measurement module interface transmits temperature data signals, which are pre-processed and then analyzed by the microcontroller. The open flame detection sensor interface circuit pre-processes the open flame status signal, converts it into a digital signal, and transmits it to the microcontroller for judgment and processing.

[0042] Please see Figure 4 As one embodiment of this utility model, the intelligent device linkage controller includes: a third device housing, a camera module, a third control panel, and a first external antenna; it is used to automatically receive the values ​​returned by the open flame / temperature detector online. When the values ​​returned by the open flame / temperature detector reach the alarm threshold, it can automatically cut off the power supply of all equipment in the factory and turn on the camera function of the camera in the factory to capture the location of the open flame for easy analysis of the cause of the open flame.

[0043] Furthermore, the material of the third device's housing can be either powder-coated iron sheet or plastic shell, and it mainly consists of two parts: the outer casing and the second outer casing back panel. The outer casing has many design details. An exposed LED indicator hole is specifically provided at the top of the front, allowing the LED indicator to clearly display the device's operating status for easy user monitoring. An external antenna interface hole is located on one side of the upper edge, facilitating the connection of an external antenna and ensuring good wireless communication capabilities. Fixing bolt holes are distributed on both sides of the casing, used for a secure connection to the second outer casing back panel, ensuring the two components are tightly integrated into a single unit. Input / output line outlets are located at the lower edge, allowing various input / output lines to pass through in an orderly manner, ensuring neat wiring and facilitating device installation and maintenance. In addition, control board fixing bolt posts are provided inside the outer casing to secure the control board, ensuring its stability during device operation and preventing it from being affected by vibration or other factors. The second outer casing back panel also has an important design structure. It has wall-mounting mounting holes, which allows the equipment to be easily wall-mounted, saving space and facilitating layout. At the same time, the back panel of the second outer casing also has fixing bolt holes for connection with the outer casing, corresponding to the fixing bolt holes on both sides of the outer casing. Through bolt connection, the two are firmly spliced ​​together to form a complete third equipment casing.

[0044] Furthermore, the main components of the third control panel include a video storage and transmission circuit, a storage circuit, a microcontroller, a camera module interface circuit, and a power management circuit. The peripheral interfaces of the third control panel include an AC power supply interface, a switch signal acquisition port, a linkage control port, and an external antenna interface.

[0045] In practical applications, the main devices and peripheral interfaces of the third control panel work together to ensure the operation of the intelligent device linkage controller. The video storage and transmission circuit processes and manages video data from the camera module, storing it locally and transmitting it remotely as needed to aid in the analysis of open flame causes. The storage circuit saves system configuration and historical operating data for the microcontroller to access during startup, operation, and querying. The microcontroller, as the core, receives data from multiple sources, determines whether to execute linkage control, coordinates the work of various components, and communicates with external systems. The camera module interface circuit connects the camera module to the microcontroller, providing power to the camera module, configuring parameters, and preprocessing video signals. The power management circuit processes the power input from the AC power interface, providing stable power to various components and saving energy. The AC power interface connects to an external power source to power the control board and equipment; the switch signal acquisition port acquires signals from external devices to aid the microcontroller's decision-making; the linkage control port outputs signals to achieve linkage with external devices; and the external antenna interface connects to an external antenna to enhance wireless communication and enable data interaction with other devices.

[0046] Please see Figure 5 As one embodiment of this utility model, the smoke detection intelligent monitoring platform includes: intelligent monitoring equipment, online video monitoring equipment, voice intercom equipment, comprehensive analysis and processing equipment, intelligent alarm control equipment, and network communication transmission equipment; used for online automatic detection and rapid and accurate determination of the location of smoke generation and the status of open flame; used for automatically receiving monitoring data from the open flame / temperature detector via wireless communication; used for automatically issuing a voice and light pre-alarm when the temperature reaches the warning / alarm threshold; used for automatically sending an automatic cut-off control signal and activating the recording function to the intelligent device linkage controller via wireless communication when the alarm threshold is reached; used for analyzing the cause of open flame and reducing the risk of short circuits in electronic devices caused by open flames, thereby preventing safety issues.

[0047] Furthermore, the various devices in the smoke detection intelligent monitoring platform operate collaboratively to ensure the safety of the factory environment. Intelligent monitoring devices connect to various sensors to monitor smoke, temperature, and other information in real time, providing basic data for the system. Online video monitoring devices capture real-time factory footage via cameras, which is then encoded and transmitted for user viewing, helping to understand the on-site situation. Voice intercom devices, composed of microphones, speakers, and communication modules, enable remote two-way communication between users and on-site personnel, improving emergency response efficiency. Comprehensive analysis and processing devices receive multi-source data, analyze it using algorithmic models, and provide a basis for intelligent alarms and decision-making. Intelligent alarm control devices receive monitoring and analysis data according to preset rules and thresholds, triggering alarms and initiating corresponding measures. Network communication transmission devices connect to each device via wired or wireless means, responsible for data encapsulation, encoding, transmission, decoding, and parsing, ensuring data communication and collaborative operation within and outside the platform.

[0048] When an initial fire occurs somewhere in the factory and smoke is produced, the specific working process of this utility model is as follows:

[0049] Detection and location: The smoke detector alarm first detects abnormal smoke concentration, and its internal positioning and orientation calculation circuit estimates the approximate location of the smoke source based on the difference in signal strength.

[0050] Information reporting: The smoke detector alarm immediately sends a data packet containing "smoke alarm" and "location information" to the smoke detection intelligent monitoring platform via the transmission network.

[0051] Platform Response: Upon receiving an alarm message, the smoke detection intelligent monitoring platform immediately issues an alert to management personnel via sound, light, and pop-ups on both the PC client and mobile application, displaying the alarm location. Simultaneously, the platform automatically retrieves data from open flame / temperature detectors and camera footage near the alarm point.

[0052] Multidimensional confirmation: Managers can quickly confirm the authenticity of a fire by viewing real-time temperature data and video footage.

[0053] Intelligent linkage: The fog detection intelligent monitoring platform issues instructions to the intelligent device linkage controller according to the preset strategy (or through one-click confirmation by the management personnel).

[0054] On-site handling: Upon receiving the instruction, the intelligent device linkage controller immediately performs two actions:

[0055] (1) Disconnect the power supply to the designated equipment in the area through the linkage control port to prevent the fire from spreading due to electrical reasons;

[0056] (2) Start the camera module to record high-definition video and upload the video stream to the platform in real time to preserve evidence for subsequent handling and investigation.

[0057] The smoke detector alarm converts the collected fire analog signal into a corresponding electrical signal using a smoke sensor. The electrical signal is then transmitted to the receiving module of the host computer via a wireless communication module. The host computer then analyzes the specific location where the smoke is generated and sends a reminder to the user on the mobile device.

[0058] The open flame / temperature detector can be set and adjusted to set the detection mode, on-site alarm temperature threshold, and alarm volume; the smoke detection intelligent monitoring platform can be set to set the warning and alarm time, alarm temperature, and alarm volume via PC client and mobile application.

[0059] The intelligent device linkage controller receives the temperature monitored by the open flame / temperature detector and determines whether the temperature has reached the power-off threshold, thereby controlling whether all equipment in the factory is powered off. The recording function will transmit the recorded images to the PC client and mobile application in real time, enabling better analysis of the causes of open flames in the factory.

[0060] The intelligent smoke detection monitoring platform includes a PC client and a mobile application, supporting various digital and information-based management functions. It enables online monitoring of the operational status of networked factory smoke alarm systems, online video surveillance, remote voice intercom, data querying, and statistical analysis. It provides factory safety supervision units with an advanced online monitoring technology.

[0061] The system equipment composition, structural design and functional integration scheme provided by this utility model effectively overcomes and solves the problems and shortcomings of the existing technology, such as a large number of terminal devices, relatively simple functions of individual devices, low degree of equipment integration and relatively high equipment costs, and greatly improves the degree of equipment functional integration and can reduce equipment costs.

[0062] The wireless communication method between system devices provided by this utility model effectively overcomes and solves the problems and shortcomings of the prior art, such as troublesome installation and wiring, time-consuming and labor-intensive installation, and high construction costs. It greatly improves the installation and construction efficiency of system devices and can save installation and construction costs.

[0063] The pairing, networking, and parameter setting methods for system equipment provided by this utility model effectively overcome and solve the drawbacks of the inconvenience of debugging methods and the high degree of professionalism of debugging tools when using a laptop to connect to the alarm controller for debugging in the existing technology. This greatly improves the convenience and ease of operation of debugging the IoT-based automatic smoke alarm system for factories.

[0064] This utility model can have other embodiments based on the above methods, which will not be listed one by one. Therefore, any simple modifications, equivalent changes and alterations made by any person skilled in the art to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An automatic smoke alarm system for factories based on the Internet of Things, characterized in that, Includes: smoke Detection and alarm equipment, intelligent smoke detection monitoring platform, and the transmission network connecting the two; The smoke detection alarm device includes a smoke detector alarm, an open flame / temperature detector wirelessly connected to the smoke detector alarm, and an intelligent device linkage controller wirelessly connected to the open flame / temperature detector. The intelligent smoke detection monitoring platform includes a system server, a PC client, and a mobile application. The transmission network includes wired networks and wireless networks; The smoke detector alarm includes a first device housing, a plug adapter, a first control panel, a buzzer, and a light alarm; the plug adapter is disposed on the first device housing and is soldered to the neutral and live wires of the first control panel via a power cord; the first control panel is fixed to the first device housing by bolts and is electrically connected to the buzzer and the light alarm. The main components of the first control panel include a built-in antenna, a storage circuit, a microcontroller, a positioning and orientation calculation circuit, a display driver circuit, and a power management circuit. Its peripheral interfaces include a smoke sensor interface circuit, a buzzer driver circuit, and a light alarm circuit; The intelligent device linkage controller includes a third device housing, a camera module, a third control panel, and a first external antenna; the third control panel is disposed on the third device housing and is electrically connected to the camera module and the first external antenna.

2. The automatic smoke alarm system for factories based on the Internet of Things as described in claim 1, characterized in that, The open flame / temperature detector includes a second device housing, a second control panel, an array infrared temperature measurement module, and an open flame detection sensor; the second control panel is located on the second device housing and is electrically connected to the array infrared temperature measurement module and the open flame detection sensor.

3. The automatic smoke alarm system for factories based on the Internet of Things as described in claim 2, characterized in that, The main components of the second control panel include a built-in antenna, storage circuit, microcontroller, multi-function setting key, temperature display driver circuit, power management circuit, and alarm circuit. Its peripheral interfaces include an array infrared temperature measurement module socket and an open flame detection sensor interface circuit.

4. The factory smoke automatic alarm system based on Internet of Things according to claim 1, characterized in that, The third device housing consists of a housing body and a second housing back plate; the housing body is provided with an exposed LED indicator hole and an external antenna interface hole; the lower edge of the housing body is also provided with an input / output line outlet; the inside of the housing body is connected to the control board by fixing bolts; the two sides of the housing body are connected to the second housing back plate by bolts; the second housing back plate is provided with wall-mounting mounting holes.

5. The factory smoke automatic alarm system based on Internet of Things according to claim 4, characterized in that, The main components of the third control panel include a video storage and transmission circuit, a storage circuit, a microcontroller, a camera module interface circuit, and a power management circuit; its peripheral interfaces include an AC power supply interface, a switch signal acquisition port, a linkage control port, and an external antenna interface.

6. The IoT-based automatic smoke alarm system for a factory building according to claim 1, wherein The intelligent smoke detection monitoring platform also includes intelligent monitoring equipment, online video monitoring equipment, voice intercom equipment, comprehensive analysis and processing equipment, intelligent alarm control equipment, and network communication transmission equipment.

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