Internet of things thermostat device
By introducing an IoT-based constant temperature device that incorporates temperature sensors, a main control unit, and multiple sensors, combined with PID control and multi-protocol communication, the energy waste and control lag issues of existing devices are resolved, achieving intelligent and energy-saving environmental temperature regulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIYANG KEYUN MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-03
AI Technical Summary
Existing IoT-based temperature control devices lack awareness of environmental usage status, cannot adjust on demand, resulting in energy waste, and cannot achieve intelligent remote control.
The intelligent temperature control system, composed of temperature sensors, main control unit, wireless communication module, light sensor, and human infrared sensor, combines PID control algorithm and multiple communication protocols to achieve dynamic adjustment and energy-saving control.
It enables intelligent and automated regulation of ambient temperature, reduces energy waste, improves response sensitivity and control accuracy, supports remote control and local interaction, and enhances the system's adaptability and security.
Smart Images

Figure CN224457273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of constant temperature technology, specifically an Internet of Things (IoT) constant temperature device. Background Technology
[0002] With the development of smart home and industrial automation technologies, IoT-based temperature control devices are widely used in various fields such as home environment regulation, greenhouse agriculture control, and laboratory temperature control. Existing IoT temperature control devices generally include temperature sensors, heating or cooling modules, control units, and communication modules. The sensors collect ambient temperature data in real time, and the control unit analyzes and processes the collected data to control the operation of the corresponding heating or cooling devices, thereby achieving intelligent temperature regulation. In addition, some devices support wireless communication methods such as Wi-Fi and Bluetooth for remote control and data monitoring. However, existing technologies still have shortcomings in practical applications. Traditional devices often rely on fixed logic to control the heating / cooling modules, lacking awareness of environmental usage status and failing to achieve on-demand adjustment, resulting in energy waste. For example, they may maintain constant power operation in unoccupied environments and fail to promptly enter low-power standby mode.
[0003] In view of the above, this application is hereby submitted. Utility Model Content
[0004] The purpose of this invention is to provide an Internet of Things (IoT) constant temperature device to solve the problems mentioned in the background art.
[0005] To address the aforementioned technical problems, this utility model provides an IoT constant temperature device comprising: a temperature sensor for real-time monitoring of ambient temperature; a heating / cooling module for adjusting ambient temperature; a main control unit electrically connected to the temperature sensor and the heating / cooling module for controlling the operating status of the heating / cooling module based on temperature feedback data; and a wireless communication module connected to the main control unit for data transmission with a cloud server or user terminal.
[0006] In one possible implementation, the main control unit has a built-in PID control algorithm to dynamically adjust the output power of the heating / cooling module based on the deviation between the ambient temperature and the preset target temperature.
[0007] In one possible implementation, the IoT constant temperature device further includes an energy-saving control module, which includes: a light sensor for detecting ambient light intensity; a human infrared sensor for detecting the presence of people; when the light intensity is below a threshold and no people are detected, the main control unit controls the heating / cooling module to enter a low-power standby mode.
[0008] In one possible implementation, the wireless communication module supports Wi-Fi, Bluetooth, Zigbee, or LoRa communication protocols to receive remote control commands from the user terminal and upload temperature data to the cloud.
[0009] In one possible implementation, the IoT-based temperature control device also includes a backup power module for automatically switching power supply when the main power supply fails, and for sending a power failure alarm signal to the user terminal via a wireless communication module.
[0010] In one possible implementation, the IoT thermostat also includes a local interaction module, including a touch screen and physical buttons, for manually adjusting the target temperature and viewing real-time temperature data.
[0011] In one possible implementation, the main control unit is connected to a voice recognition module to receive voice commands and adjust the temperature setting.
[0012] In one possible implementation, the heating / cooling module adopts a combination structure of PTC heating element and semiconductor cooling element, and the heating and cooling functions are independently controlled by the main control unit.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model monitors the ambient temperature in real time through a temperature sensor. The main control unit controls the operation of the heating / cooling module based on the temperature feedback data and interacts with the cloud server or user terminal through a wireless communication module. This solves the problem that traditional constant temperature devices cannot achieve intelligent remote control and energy-saving operation, and improves the intelligence and automation level of ambient temperature regulation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] In the diagram: 101, Temperature sensor; 102, Heating / cooling module; 103, Main control unit; 104, Wireless communication module; 105, Energy-saving control module; 1051, Light sensor; 1052, Human infrared sensor; 106, Backup power module; 107, Body interaction module; 1071, Touch screen; 1072, Physical buttons; 108, Voice recognition module. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1 The IoT-based temperature control device includes: a temperature sensor 101 for real-time monitoring of ambient temperature; a heating / cooling module 102 for regulating ambient temperature; a main control unit 103 electrically connected to the temperature sensor 101 and the heating / cooling module 102, used to control the operation of the heating / cooling module 102 based on temperature feedback data; and a wireless communication module 104 connected to the main control unit 103 for data transmission with a cloud server or user terminal. The temperature sensor 101 is positioned at key locations in the environment to continuously monitor air temperature and transmit real-time temperature data to the main control unit 103. The main control unit 103 compares the received temperature data with a set target temperature to analyze whether the current environment is within the required temperature range. When the ambient temperature is higher or lower than the set temperature threshold, the main control unit 103 issues a command to control the heating / cooling module 102 to start heating or cooling operations. The module adjusts its power output according to the command from the main control unit to achieve rapid heating or cooling. When the temperature returns to the target range, the main control unit controls the module to enter a heat preservation mode or shut down to save energy. Meanwhile, the wireless communication module 104 uploads the current ambient temperature, setpoint, and device operating status to the cloud server or sends them to the user terminal for remote viewing and control. This enables real-time and precise control of the ambient temperature, ensuring indoor comfort. Furthermore, the wireless communication module facilitates remote information transmission and control, enhancing user interaction and ease of operation. Its temperature control feedback mechanism ensures the device has automatic response capabilities, completing temperature adjustment without manual intervention. In addition, the system's modular structure and independent, complementary functions facilitate future maintenance and functional expansion.
[0019] As a preferred embodiment, the main control unit 103 incorporates a built-in PID control algorithm to dynamically adjust the output power of the heating / cooling module based on the deviation between the ambient temperature and the preset target temperature. The main control unit 103 integrates a proportional-integral-derivative (PID) control algorithm module to execute the temperature regulation strategy. When the current ambient temperature value collected by the temperature sensor 101 is uploaded to the main control unit 103, the PID algorithm calculates the error between the current temperature and the target temperature in real time and generates a control output value based on the combined action of the proportional (P), integral (I), and derivative (D) terms. This output value is used to adjust the voltage, current, or power level of the heating / cooling module 102, thereby achieving rapid response and stable control. Through the dynamic adjustment capability of this algorithm, the device can effectively reduce system overshoot and steady-state error, improving temperature control accuracy and regulation stability. By introducing the PID control algorithm, the response sensitivity and control accuracy of the temperature control system are significantly improved, solving the problems of large temperature fluctuations and lag in traditional constant temperature systems. This control strategy supports the prediction and adjustment of temperature change trends, making the system more intelligent and stable. Meanwhile, PID parameters can be optimized and configured according to different application scenarios, improving the system's adaptability and flexibility.
[0020] Specifically, the IoT constant temperature device also includes an energy-saving control module 105, which includes: a light sensor 1051 for detecting ambient light intensity; a human infrared sensor 1052 for detecting the presence of people; when the light intensity is below the threshold and no people are detected, the main control unit 103 controls the heating / cooling module 102 to enter a low-power standby mode.
[0021] A light sensor 1051 continuously monitors the ambient brightness level, while a human infrared sensor 1052 detects signs of human activity. When the system detects that the ambient light level is below a preset threshold and no human presence is detected for an extended period, the main control unit 103 determines that the current location is inactive based on these dual criteria. It then controls the heating / cooling module 102 to reduce its operating frequency or enter a low-power standby state to save energy. This energy-saving mechanism significantly reduces energy waste during periods of inactivity or non-working, improving overall energy efficiency. By comprehensively considering both light and human presence data, misjudgments are effectively avoided, enhancing the system's intelligence and reliability.
[0022] Specifically, the wireless communication module 104 supports Wi-Fi, Bluetooth, Zigbee, or LoRa communication protocols to receive remote control commands from user terminals and upload temperature data to the cloud. The main control unit 103 establishes a data link with external user terminals or cloud platforms through the wireless communication module 104. The communication module can select different protocols depending on the application environment: Wi-Fi is suitable for home network environments; Bluetooth is suitable for short-range local control; Zigbee is suitable for low-power distributed networks; and LoRa is suitable for long-range IoT data transmission. Bidirectional data transmission allows users to remotely set target temperatures, control device on / off states, and obtain real-time operating status and historical data. Multi-protocol communication capabilities enhance the device's adaptability and interoperability in various scenarios, and improve the system's scalability, configurability, and remote control convenience.
[0023] As a preferred example, the IoT-based temperature control device also includes a backup power module 106, which automatically switches power supply when the main power supply fails and sends a power outage alarm signal to the user terminal via the wireless communication module 104. The backup power module 106 is typically a lithium battery pack or supercapacitor system, equipped with a power management chip to detect the main power status. When a mains power failure is detected, the power management system immediately switches to the backup power supply, maintaining the operation of the main control unit 103 and the wireless communication module 104, and triggers a power outage signal. The communication module 104 then pushes alarm information to the user terminal, indicating that the device has lost power and is being maintained by the backup power supply. This ensures that the system retains basic communication capabilities during power outages, preventing information loss or monitoring interruptions, and improving system security and robustness.
[0024] Specifically, the IoT-based temperature control device also includes a local interaction module 107, comprising a touchscreen display 1071 and physical buttons 1072, for manually adjusting the target temperature and viewing real-time temperature data. The touchscreen display 1071 displays information such as the current temperature, device status, and historical data curves. Users can input target temperature settings or switch modes via touch operations. The physical buttons 1072 serve as a backup operation method, providing basic control functions in case of touchscreen malfunction or specific user preferences. The main control unit 103 collects interaction commands and provides feedback on the system status. The local interaction module enhances the device's user-friendliness and intuitive operation experience, making it particularly suitable for scenarios without network access or temporary control, while also catering to different user habits.
[0025] Specifically, the main control unit 103 is connected to the voice recognition module 108, which receives voice commands and adjusts the temperature setpoint. The voice recognition module 108 has a built-in microphone array and voice processing chip, which can recognize user commands, temperature adjustment commands, or start / stop control commands. After the voice data is parsed by the main control unit 103, it is converted into control commands to drive the heating / cooling module 102 to work as needed.
[0026] The voice interaction method, which eliminates the need for manual operation, enhances the system's intelligence and ease of use, making it especially suitable for the elderly, children, or users with mobility issues.
[0027] As a preferred example, the heating / cooling module 102 employs a combination of a PTC heating element and a semiconductor cooling element, with the heating and cooling functions independently controlled by the main control unit 103. The PTC heating element possesses self-limiting temperature characteristics, making it suitable for efficient heating control. The semiconductor cooling element operates using the Peltier effect, and the direction of current can control the direction of heat conduction. The main control unit 103 drives the heating and cooling modules separately through multi-channel outputs, independently or alternately activating the heating or cooling channels according to temperature requirements to achieve precise temperature control. The dual-mode structure allows the system to quickly respond to heating and cooling demands, improving the speed and range of temperature control. The separate control structure enhances system flexibility and safety.
[0028] Working Principle: This IoT-based temperature control device uses temperature sensing and intelligent regulation as its core, combining multi-sensor fusion, wireless communication, intelligent algorithms, and local / remote interaction technologies to achieve automatic monitoring and dynamic adjustment of ambient temperature. The system consists of multiple functional modules working together, and the workflow is as follows:
[0029] First, the temperature sensor collects ambient temperature data in real time and transmits it to the main control unit. The main control unit has a built-in PID control algorithm that analyzes the deviation between the current temperature and the user-set target temperature, dynamically calculates the corresponding control command, and sends the command to the heating / cooling module. The heating module uses a PTC heating element, and the cooling module uses a semiconductor cooling element. Both can be controlled independently to perform heating or cooling operations respectively, so as to quickly and accurately adjust the ambient temperature to the set target.
[0030] To improve system energy efficiency, the device also incorporates an energy-saving control module. By using a light sensor to detect ambient light intensity and a human infrared sensor to determine the presence of personnel, the main control unit controls the heating / cooling modules to enter a low-power standby state when no one is present and the lighting is low, thereby reducing energy consumption.
[0031] The wireless communication module supports multiple communication protocols (such as Wi-Fi, Bluetooth, Zigbee, and LoRa) to enable data interaction between the device and user terminals or cloud platforms. Users can set target temperatures, receive status feedback, or receive alarm notifications via remote terminals. When a main power failure is detected, the backup power module immediately switches power to ensure the main control and communication modules continue to operate, and simultaneously sends a power failure alarm signal to the user terminal.
[0032] The device also features a local interaction module, including a touchscreen display and physical buttons, allowing users to manually view the current temperature status or adjust settings. Additionally, a voice recognition module receives voice commands, providing a hands-free operation method and enhancing the user experience.
[0033] In terms of system integration, each module connects to the main control unit via bus or wireless means for unified scheduling and feedback, forming a stable, fast-responding, fault-tolerant, and scalable intelligent temperature control system. The overall architecture emphasizes hardware and software synergy to ensure the real-time performance and operational efficiency of the control logic, meeting the high-performance temperature control requirements of various application scenarios.
[0034] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.
Claims
1. An Internet of Things (IoT) constant temperature device, characterized in that, include: Temperature sensor (101) is used to monitor ambient temperature in real time; Heating / cooling module (102) is used to regulate ambient temperature; The main control unit (103) is electrically connected to the temperature sensor and the heating / cooling module, and is used to control the operating status of the heating / cooling module according to the temperature feedback data; The wireless communication module (104) is connected to the main control unit and is used to transmit data with the cloud server or user terminal.
2. The IoT constant temperature device according to claim 1, characterized in that: The main control unit (103) has a built-in PID control algorithm, which is used to dynamically adjust the output power of the heating / cooling module according to the deviation between the ambient temperature and the preset target temperature.
3. The IoT constant temperature device according to claim 1, characterized in that: It also includes an energy-saving control module (105), comprising: a light sensor (1051) for detecting ambient light intensity; and a human infrared sensor (1052) for detecting the presence of personnel. When the light intensity is below a threshold and no personnel are detected, the main control unit controls the heating / cooling module to enter a low-power standby mode.
4. The IoT constant temperature device according to claim 1, characterized in that: The wireless communication module (104) supports Wi-Fi, Bluetooth, Zigbee or LoRa communication protocols and is used to receive remote control commands from user terminals and upload temperature data to the cloud.
5. The IoT constant temperature device according to claim 1, characterized in that: It also includes a backup power module (106) for automatically switching power supply when the main power supply fails, and sending a power failure alarm signal to the user terminal via a wireless communication module.
6. The IoT constant temperature device according to claim 1, characterized in that: It also includes a local interaction module (107), including a touch display (1071) and physical buttons (1072) for manually adjusting the target temperature and viewing real-time temperature data.
7. The IoT constant temperature device according to claim 1, characterized in that: The main control unit (103) is connected to the voice recognition module (108) and is used to receive voice commands and adjust the temperature setting value.
8. The IoT constant temperature device according to claim 1, characterized in that: The heating / cooling module (102) adopts a combination structure of PTC heating element and semiconductor cooling element, and the heating and cooling functions are independently controlled by the main control unit (103).