Novel air conditioner internet-of-things control terminal device

Abstract

The utility model discloses a novel air conditioner internet-of-things control terminal device which comprises a control unit, a temperature and humidity execution module, a display module, a touch control setting module and a temperature and humidity sensor, and the temperature and humidity execution module, the display module, the touch control setting module and the temperature and humidity sensor are respectively and electrically connected with the control unit. The novel air conditioner internet-of-things control terminal device further comprises a Wifi communication module electrically connected with the control unit. According to the utility model, a Wifi communication mode is adopted, compared with wireless LORA and Zigbee, the communication signal is more stable, the compatibility is better, the control unit independently drives the 8-shaped LED tube with the first two digits of humiture, and other display units with smaller specifications are driven by a driving chip, so that the brightness uniformity of all the display units can be ensured.

Description

Technical Field

[0001] The utility model relates to an air-conditioning control terminal. Background Art

[0002] Traditional indoor air conditioning fan coil control usually uses a non-networked thermostat to adjust the temperature. Such thermostats require customers to operate manually, which not only makes the indoor environment uncomfortable, but also causes energy waste.

[0003] In order to solve the above problems, people began to upgrade the room thermostats to the Internet, using wired 485, wireless LORA or Zigbee and other technologies for remote control. However, there are still some problems with the modified thermostats: on the one hand, the wired method has the problem of complex construction, and the above wireless communication method has the problem of unstable signals, which hinders the efficient centralized management of fan coil units and makes it difficult for the hotel to achieve the purpose of energy-saving regulation of fan coil units. On the other hand, the display screen of the thermostat needs to display information such as temperature and humidity (accurate to one decimal place), wind speed, air conditioning mode, etc. All LED tubes and LED lights are driven by a unified driver chip. However, the 8-digit LED tubes used for the first two digits of temperature and humidity are large specifications, and the specifications of other display units are small, so there is uneven brightness. Utility Model Content

[0004] The utility model proposes a novel air-conditioner IoT control terminal device, the purposes of which are: 1. solving the problem of unstable signals in the existing wireless communication mode; 2. solving the problem of different brightness of each display unit of the display screen.

[0005] The technical solution of this utility model is as follows:

[0006] A novel air-conditioning IoT control terminal device comprises a control unit and a temperature and humidity execution module, a display module, a touch setting module and a temperature and humidity sensor electrically connected to the control unit respectively, wherein the display module comprises a driving chip, a control circuit and a display screen, and the novel air-conditioning IoT control terminal device further comprises a Wifi communication module electrically connected to the control unit;

[0007] The display screen is provided with a first 8-shaped LED tube, a second 8-shaped LED tube, a decimal point LED light, a third 8-shaped LED tube, a wind force indication LED tube and a Wifi indication LED light;

[0008] The first 8-character LED tube and the second 8-character LED tube are used to display the tens and units of the temperature and humidity respectively, and the third 8-character LED tube is used to display the first digit after the decimal point of the temperature and humidity;

[0009] The display driving end of the control unit is connected to the control circuit, and the display control end of the control unit is connected to the control circuit through a driving chip; the first 8-shaped LED tube and the second 8-shaped LED tube are directly driven by the display driving end of the control unit, and the decimal point LED light, the third 8-shaped LED tube, the wind force indication LED tube and the Wifi indication LED light are driven by the driving chip.

[0010] As a further improvement of the new air-conditioning IoT control terminal device: the temperature and humidity execution module includes a water valve relay and a wind speed relay. The water valve relay is used to control the on and off of the water pipe connected to the fan coil of the air conditioner, and the wind speed relay is used to control the speed of the fan on the fan coil.

[0011] As a further improvement of the novel air-conditioning IoT control terminal device: the temperature and humidity sensor is electrically connected to the control unit via an IIC bus.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model adopts Wifi communication mode. Compared with wireless LORA and Zigbee, the communication signal is more stable and has better compatibility.

[0014] 2. The utility model uses a control unit to drive the 8-shaped LED tubes of the first two digits of the temperature and humidity separately, and other display units with smaller specifications are driven by a driver chip, thereby ensuring uniform brightness of all display units. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 is a schematic diagram of a control unit;

[0017] Figure 3 It is a schematic diagram of the Wifi communication module;

[0018] Figure 4 It is a structural schematic diagram of a display screen;

[0019] Figure 5 A schematic diagram of a driver chip for a display module;

[0020] Figure 6 is a schematic diagram of a control circuit of a display module;

[0021] Figure 7 A schematic diagram of the touch control setting module;

[0022] Figure 8 This is a schematic diagram of the temperature and humidity sensor interface. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0024] like Figure 1 A new type of air-conditioning Internet of Things control terminal device includes a control unit 1 and a Wifi communication module 2, a temperature and humidity execution module 3, a display module 4, a touch setting module 5 and a temperature and humidity sensor 6 electrically connected to the control unit 1 respectively.

[0025] like Figure 2 The control unit 1 is an MCU, model es32h0403, whose 47th and 48th pins are used to connect the power supply part, 42th, 43th and 45th pins are connected to the Wifi communication module 2, 15th to 20th IO pins are display driver ends, 32th and 33th pins are display control ends, 6th, 8th, 9th to 11th pins are used to connect the temperature and humidity execution module 3, 23th, 24th and 36th pins are used to connect the temperature and humidity sensor 6, and 25th to 28th and 31st pins are used to connect the touch setting module 5.

[0026] like Figure 3 The model of Wifi communication module 2 is WIFI_C3_Tuya, which receives and sends data through Wifi to realize interaction with users / platforms.

[0027] Furthermore, the display module 4 includes a driving chip, a control circuit and a display screen. Figure 4 The display screen is provided with a first 8-character LED tube 4-1, a second 8-character LED tube 4-2, a heating indicator LED light 4-3, a decimal point LED light 4-4, a third 8-character LED tube 4-5, a wind force indicator LED tube 4-6, and a Wifi indicator LED light 4-7. Among them, the first 8-character LED tube 4-1 and the second 8-character LED tube 4-2 are of the largest specifications, and are used to display the tens and units of the temperature and humidity respectively. The third 8-character LED tube 4-5 is used to display the first digit after the decimal point of the temperature and humidity. The others are function indicator units, and the wind force indicator LED tube 4-6 is composed of multiple display units and displayed in segments.

[0028] The display driving end of the control unit 1 is connected to the control circuit, and the first 8-shaped LED tube 4-1 and the second 8-shaped LED tube 4-2 are directly and separately driven by the display driving end of the control unit 1. The display control end of the control unit 1 is connected to the control circuit through a driving chip, and the decimal point LED light 4-4, the third 8-shaped LED tube 4-5, the wind force indication LED tube 4-6 and the Wifi indication LED light 4-7 are driven by the driving chip. By driving the large-scale and small-scale display units separately, the problem of uneven brightness that occurs when driving uniformly can be avoided.

[0029] Figure 5 Schematic diagram of the driver chip, the driver chip model is tm1640. sclk and din are used to connect to the display control terminal of the control unit 1, the control unit 1 determines the display content and the driver chip drives it, and SEG1-SEG8 of the driver chip are used to connect to the control circuit of the display module 4.

[0030] Figure 6 It is a schematic diagram of the control circuit of the display module 4, wherein SEG1_MCU-SEG7_MCU etc. are used to connect with the display driver end of the control unit 1, and SEG1-SEG8 are used to connect with the driver chip to receive the output signal of the driver chip.

[0031] like Figure 7 The chip model of the touch setting module 5 is ca51f551s3. Its 10-11 pins are touch input ports, and 1-5 pins are output ports.

[0032] like Figure 8 The temperature and humidity sensor 6 is of model SHT30 and is electrically connected to the control unit 1 via an IIC bus.

[0033] The temperature and humidity execution module 3 includes a water valve relay and a wind speed relay. The water valve relay is used to control the on-off of the water pipe connected to the fan coil of the air conditioner, and the wind speed relay is used to control the speed of the fan on the fan coil.

[0034] When working, the user sends the command to the control terminal device via Wifi, and the control unit 1 makes a judgment based on the command and the currently collected indoor temperature and humidity according to the internal logic program, and then outputs a control signal, and then the water valve relay and the wind speed relay respectively control the on and off of the water pipe and the start and stop / speed of the fan, thereby achieving the purpose of controlling the indoor temperature and humidity. The user or platform can also obtain the current temperature and humidity through Wifi and switch different control modes (logic).

[0035] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A novel air-conditioning IoT control terminal device, comprising a control unit (1) and a temperature and humidity execution module (3), a display module (4), a touch setting module (5) and a temperature and humidity sensor (6) electrically connected to the control unit (1), respectively, wherein the display module (4) comprises a driving chip, a control circuit and a display screen, and is characterized in that: The novel air-conditioning IoT control terminal device further comprises a Wifi communication module (2) electrically connected to the control unit (1); The display screen is provided with a first 8-shaped LED tube (4-1), a second 8-shaped LED tube (4-2), a decimal point LED light (4-4), a third 8-shaped LED tube (4-5), a wind force indication LED tube (4-6) and a Wifi indication LED light (4-7); The first 8-character LED tube (4-1) and the second 8-character LED tube (4-2) are used to display the tens digit and the ones digit of the temperature and humidity respectively, and the third 8-character LED tube (4-5) is used to display the first digit after the decimal point of the temperature and humidity; The display driving end of the control unit (1) is connected to the control circuit, and the display controlling end of the control unit (1) is connected to the control circuit via a driving chip; the first 8-shaped LED tube (4-1) and the second 8-shaped LED tube (4-2) are directly driven by the display driving end of the control unit (1), and the decimal point LED light (4-4), the third 8-shaped LED tube (4-5), the wind force indication LED tube (4-6) and the Wifi indication LED light (4-7) are driven by the driving chip.

2. The novel air-conditioning IoT control terminal device according to claim 1, characterized in that: The temperature and humidity execution module (3) comprises a water valve relay and a wind speed relay, wherein the water valve relay is used to control the on-off of a water pipe connected to a fan coil unit of the air conditioner, and the wind speed relay is used to control the rotation speed of a fan on the fan coil unit.

3. The novel air-conditioning IoT control terminal device according to claim 1 or 2, characterized in that: The temperature and humidity sensor (6) is electrically connected to the control unit (1) via an IIC bus.

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