Warm air blower improved equipment based on Internet of Things

Abstract

The utility model discloses an improved warm air blower device based on the Internet of Things, which comprises a main control module which is respectively in communication connection with an interaction platform, a touch control unit, an MOS (Metal Oxide Semiconductor) tube combination control output circuit and an environment sensing unit; the interaction platform is used for sending a control instruction to the main control module; the touch control unit is used for switching the working mode of the fan heater according to the times of touching the small touch panel detected by the main control module; the MOS tube combination control output circuit is used for switching the working state of the fan heater according to the instruction sent by the main control module; and the environment sensing unit is used for acquiring environment temperature data and transmitting the environment temperature data to the main control module. According to the utility model, the device can interact with other intelligent devices, the intelligent experience of the intelligent home is increased, the device can be monitored and controlled in real time through the mobile phone, the use convenience and flexibility are improved, and the phenomena of energy waste and potential safety hazards caused by forgetting to turn off the warm air blower when a user leaves home are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of intelligent home control, and in particular relates to improved equipment for a heater based on the Internet of Things. Background Art

[0002] In the cold winter, the fan heater is like an indispensable friend in people's lives, giving warmth and comfort appropriately. It has various forms, either traditional button type or fashionable touch type, among which the touch type is the most common.

[0003] However, in the prior art, most common fan heaters can only be manually turned on and off and set to a fixed temperature, and their functionality is relatively simple. These problems are magnified in highly integrated smart home systems. Since common fan heaters on the market lack networking functions, they cannot be integrated into smart home systems and cannot interact with other smart devices, reducing the intelligent experience of smart homes.

[0004] Furthermore, when users use this type of heater, since the heater cannot be adjusted intelligently, it may overheat or overcool at certain times, affecting comfort. In addition, when users forget to turn off the heater when they leave, it will cause energy waste and safety hazards. The existence of these problems urgently requires a solution to improve the intelligence level of the heater and improve the user experience. Utility Model Content

[0005] The purpose of the utility model is to provide an improved device for a heater based on the Internet of Things to solve the problems existing in the above-mentioned prior art. To achieve the above-mentioned purpose, the utility model provides the following solutions:

[0006] The utility model provides a heater improvement device based on the Internet of Things, comprising:

[0007] The main control module includes a main control chip, which is respectively connected to the interactive platform, the touch control unit, the MOS tube combination control output circuit, and the environment sensing unit;

[0008] An interactive platform, the interactive platform is connected to the main control module through a communication module and is used to send control instructions to the main control module;

[0009] A touch control unit, including a touch panel, for switching the heater operation mode according to the number of times the touch panel is touched detected by the main control module;

[0010] The MOS tube combination control output circuit is used to switch the working state of the heater according to the instruction issued by the main control module;

[0011] The environment sensing unit is used to obtain the environment temperature data and transmit it to the main control module.

[0012] Optionally, the main control module is an ESP8266-ESP12F single-chip microcomputer, and the temperature is regulated by the GPIO port logic level.

[0013] Optionally, the interactive platform is a mobile phone control terminal.

[0014] Optionally, the touch control unit includes a touch panel, adopts a four-wire system with two power supplies and two outputs, wherein the two output lines are connected to the main control module.

[0015] Optionally, the MOS tube combination control output circuit is a PMOS tube and NMOS tube combination control output circuit.

[0016] Optionally, the environment sensing unit is constructed based on a DS18B20 temperature sensor, and a signal output port AIN of the DS18B20 temperature sensor is connected to a GPIO port of the main control chip to monitor the internal temperature of the heater in real time.

[0017] Furthermore, the main control module controls the on / off of the PMOS tube and the NMOS tube in the MOS tube combination control output circuit according to the temperature threshold set by the user, and performs temperature adjustment when the temperature sensor data exceeds the set threshold.

[0018] Optionally, the communication module is constructed based on a WiFi communication protocol.

[0019] Furthermore, it also includes a power supply module, which includes a low voltage difference linear regulator AMS1117, which is used to convert 5V voltage into 3.3V to power the main control chip.

[0020] The technical effects of the utility model are:

[0021] The device of the utility model has the functions of connecting to the network, temperature detection, and stability intelligent control. The user can connect the device to the smart home terminal to enable the device to interact with other smart devices, thereby increasing the intelligent experience of the smart home. The user can also monitor and control the device in real time through a mobile phone, thereby improving the convenience and flexibility of use, and also avoiding the phenomenon of energy waste and safety hazards caused by forgetting to turn off the heater when leaving home. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is a control flow chart of the original heater device in the embodiment of the present utility model;

[0024] Figure 2 This is a structural diagram of an improved device for a heater based on the Internet of Things in an embodiment of the utility model;

[0025] Figure 3 This is a circuit diagram of a heater improvement device based on the Internet of Things in an embodiment of the utility model;

[0026] Figure 4 This is a PMOS tube NMOS tube combination control output circuit diagram in an embodiment of the utility model. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Embodiment 1

[0029] like Figure 1-4 As shown, in this embodiment, a heater improvement device based on the Internet of Things is provided, including:

[0030] A main control module, which is respectively connected to the interactive platform, the touch control unit, the MOS tube combination control output circuit, and the environment sensing unit for communication;

[0031] An interactive platform, the interactive platform is connected to the main control module through a communication module and is used to send control instructions to the main control module;

[0032] A touch control unit, including a touch panel, for switching the heater operation mode according to the number of times the touch panel is touched detected by the main control module;

[0033] The MOS tube combination control output circuit is used to switch the working state of the heater according to the instruction issued by the main control module;

[0034] The environment sensing unit is used to obtain the environment temperature data and transmit it to the main control module.

[0035] The main control is controlled by ESP8266 chip, with onboard temperature detection, and the temperature is controlled by GPIO port logic level. The circuit board has DS18B20 for temperature detection, AMS1117 chip for power management, SI2305 and SI2302MOS for logic level control.

[0036] The original heater device consists of a 12V fan, a 220V PTC (Positive Temperature Coefficient) thermistor heating, a power control integrated board, and a 5V touch panel. After measurement, the control logic of the original heater is mainly controlled by the 5V touch panel. The touch panel adopts a four-wire system, two power supplies, and two outputs, one of which controls the fan and the other controls the heating. When the switch is touched for the first time, the heater starts the heating mode. When the touch switch is pressed, the PTC heating is turned off and cold air is blown. The output control logic of the touch panel is shown in Table 1; the control process is as follows Figure 1 shown.

[0037] Table 1 Touch panel status logic table

[0038]

[0039]

[0040] The control board of the improved heater based on the Internet of Things is composed of ESP-12S module, AMS1117-3.3V step-down module, MOS tube drive circuit and input and output terminals. After testing, the touch panel can work normally under the 3.3V power supply state, so 3.3V power supply is adopted, and the output part adopts NMOS and PMOS upper and lower combination to isolate and output 5V high-level signals. The output control logic is shown in Table 1; the structure of the control board of the improved heater based on the Internet of Things is shown in Table 1. Figure 2 As shown; the circuit schematic diagram is as follows Figure 3 shown.

[0041] like Figure 3 As shown in the figure, the newly added circuit parts after improvement mainly include voltage stabilization circuit, main control module circuit, touch unit circuit, DS18B20 temperature detection module circuit and PMOS tube NMOS tube combination control output circuit. The control logic of the original heater is mainly controlled by a 5V touch panel. The touch panel adopts a four-wire system, two power supplies, and two outputs. One of them controls the fan and the other controls heating. The output control logic is shown in Table 1. After the circuit improvement, the high and low level changes of the touch panel are read through the GPIO4 and GPIO5 (corresponding port names A0 and A1) of the main control module (high level is 1, low level is 0) and then through logical judgment (output control logic is shown in Table 1), the output is output through the two output ports Oo0 and Oo1. The output effect is consistent with the original. When the switch is touched for the first time, the heater enables the heating mode. When the touch switch is pressed here, the PTC heating is turned off to blow cold air; as shown in Table 1 Figure 4As shown, the GPIO12 and GPIO13 (corresponding port names are O0 and O1) of the main control module output high and low levels to change the conduction state of NMOS and PMOS to change the output state of the two output ports Oo0 and Oo1. The specific implementation process is that when O0 outputs a high level, NMOS is turned on, and then PMOS is also turned on, and Oo0 outputs 5V; when O0 outputs a low level, both NMOS and PMOS are not turned on, and the output is pulled to a low level by a 1k resistor. The output part of O1 is consistent with O0. When Oo0 outputs 5V and Oo1 outputs 5V, the thermistor heats up and the fan is turned on. At this time, it is the heating mode of the heater; when Oo0 outputs 0V and Oo1 outputs 5V, the thermistor does not work, and the fan is turned on. At this time, the heater only blows cold air. At that time, since this main control module (ESP-12S module) has a networking function, the user can log in to the Home The Assistant platform controls the level changes of ports O0 and O1 in the same local area network to change the working state of the heater and make it intelligent. Because of the improved solution of the present application, the improved heater based on the Internet of Things can be connected to the smart home system and interconnected with other devices while retaining the original touch control, which greatly changes the original single control method of the heater and makes it more convenient and intelligent for users to use.

[0042] In addition, another new function of the present application is the ability to intelligently adjust the temperature. The heater before the improvement can only output a fixed temperature. After the improvement, the newly added DS18B20 temperature detection module signal output port (AIN) is connected to the main control GPIO14 to send data. The DS18B20 temperature detection module returns a 16-bit binary temperature value to the main control. After reading, the main control determines whether the current temperature exceeds or is lower than the upper and lower thresholds set by the user. Since the MOS tube is used to control the heating of the thermistor, if the current temperature exceeds the upper threshold, O0 outputs a low level, and NMOS and PMOS are not turned on. At this time, the thermistor being heated is turned off until it is detected that the current temperature is lower than the lower threshold, then O0 outputs a high level, and NMOS and PMOS are turned on again to energize the thermistor and heat it to the upper temperature threshold. This is repeated to achieve intelligent temperature regulation.

[0043] The heater improvement device of the embodiment of the utility model includes a network control chip ESP8266, a low voltage difference linear regulator AMS1117, a temperature sensor DS18B20, MOS tubes SI2305 and SI2302, an input port A0, an input port A1, an output port O0, an output port O1, an output port Oo0, and an output port Oo1.

[0044] ESP8266 is used to connect to the network and monitor and control the GPIO port level;

[0045] AMS1117 low-dropout linear regulator, used to convert 5V voltage into 3.3V to power the chip;

[0046] Temperature sensor DS18B20, used to detect the temperature inside the heater;

[0047] Input port A0 and input port A1 read the level change of the touch panel;

[0048] The PMOS tube SI2305 and the NMOS tube SI2302 are controlled by the two output ports O0 and O1 of ESP8266, so that the output ports Oo0 and Oo1 generate high and low levels;

[0049] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A heater improvement device based on the Internet of Things, characterized in that: include: The main control module includes a main control chip, which is respectively connected to the interactive platform, the touch control unit, the MOS tube combination control output circuit, and the environment sensing unit; An interactive platform, the interactive platform is connected to the main control module through a communication module and is used to send control instructions to the main control module; A touch control unit, including a touch panel, for switching the heater operation mode according to the number of times the touch panel is touched detected by the main control module; The MOS tube combination control output circuit is used to switch the working state of the heater according to the instruction issued by the main control module; The environment sensing unit is used to obtain the environment temperature data and transmit it to the main control module.

2. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The main control module is an ESP8266-ESP12F single-chip microcomputer, which regulates the temperature through the GPIO port logic level.

3. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The interactive platform is a mobile phone control terminal.

4. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The touch control unit includes a touch panel, and adopts a four-wire system with two power supplies and two outputs, wherein the two output lines are connected to the main control module.

5. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The MOS tube combination control output circuit is a PMOS tube and NMOS tube combination control output circuit.

6. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The environment sensing unit is constructed based on a DS18B20 temperature sensor, and the signal output port AIN of the DS18B20 temperature sensor is connected to the GPIO port of the main control chip to monitor the internal temperature of the heater in real time.

7. The heater improvement device based on the Internet of Things according to claim 6 is characterized in that: The main control module controls the on and off of the PMOS tube and the NMOS tube in the MOS tube combination control output circuit according to the temperature threshold set by the user, and performs temperature adjustment when the temperature sensor data exceeds the set threshold.

8. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: The communication module is constructed based on the WiFi communication protocol.

9. The heater improvement device based on the Internet of Things according to claim 1 is characterized in that: It also includes a power supply module, which includes a low voltage drop linear regulator AMS1117, which is used to convert 5V voltage into 3.3V to power the main control chip.

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