Intelligent sound box with temperature and humidity display function

Abstract

The utility model relates to the technical field of intelligent sound boxes, in particular to an intelligent sound box with a temperature and humidity display function, which comprises a sound box outer shell and a display screen assembly used for displaying temperature and humidity, and a main control circuit board and a temperature and humidity detection module board used for acquiring original temperature and humidity data are arranged in the sound box outer shell. The design of the intelligent sound box integrating a temperature and humidity display function is adopted. The intelligent sound box not only has a conventional audio playing function, but also has an environment monitoring characteristic, real-time data acquisition is carried out through the built-in temperature and humidity detection module board, the data are processed by the main control circuit board, and then the data are visually displayed to a user through the display screen assembly. The I2C interface is used for low-speed data transmission between the temperature and humidity detection module board and the main control circuit board, and the MIPI interface supports high-speed and efficient data communication between the display screen assembly and the main control board. The device is simple in structure, high in practicability and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of smart speakers, and particularly relates to a smart speaker with a temperature and humidity display function. Background Art

[0002] Traditional smart speakers are equipped with WiFi. When users query the temperature and humidity, the smart speaker obtains the temperature and humidity from the Internet and feeds them back to the users through voice or display. This method can only obtain the temperature and humidity of the local area and cannot obtain the accurate temperature and humidity indoors. Moreover, when the network is poor, the obtained temperature and humidity are inaccurate. There are also a small number of smart speakers with built-in temperature and humidity sensors. However, when playing music, the temperature inside the speaker rises, resulting in the inability to normally feedback the temperature and humidity or the inaccurate feedback of the temperature and humidity. Content of the Utility Model

[0003] In order to solve the defects and deficiencies of the prior art, the utility model provides a smart speaker with a temperature and humidity display function, which has a simple structure and can normally feedback the temperature and humidity.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is a smart speaker with a temperature and humidity display function, which includes a speaker housing and a display screen assembly for displaying temperature and humidity. A main control circuit board and a temperature and humidity detection module board for obtaining original temperature and humidity data are installed inside the speaker housing. The temperature and humidity detection module board is clamped on the inner side wall of the speaker housing. The temperature and humidity detection module board is communicatively connected to the main control circuit board through I2C. The display screen assembly is installed on the speaker housing and is communicatively connected to the main control circuit board through an MIPI interface.

[0005] Further, a control circuit is provided on the main control circuit board. The control circuit includes a main control chip, a first resistor, a second resistor, a first capacitor, a second capacitor and a third capacitor. One end of the first resistor is grounded, and the other end is connected to the sixteenth F pin of the main control chip. One end of the second resistor is grounded, and the other end is connected to the sixteenth E pin of the main control chip. One end of the first capacitor is connected to the second resistor, and the other end is connected to the sixteenth K pin of the main control chip. The sixteenth K pin of the main control chip is connected to a 1.8V power supply. The fourth E pin of the main control chip is connected to a 3V3 power supply. One end of the second capacitor is grounded, and the other end is connected to the fourth E pin of the main control chip. The fourteenth B pin of the main control chip is connected to a 3V3 power supply. The eighteenth C pin and the eighteenth F pin of the main control chip are connected to each other, and the common end of the eighteenth C pin and the eighteenth F pin of the main control chip is grounded. One end of the third capacitor is grounded, and the other end is connected to the common end of the eighteenth C pin and the eighteenth F pin of the main control chip.

[0006] Furthermore, the temperature and humidity detection module board includes a temperature and humidity sensor, a first pull-up resistor, a second pull-up resistor, and a first filter capacitor. The first pin of the sensor is connected to the 18th A pin of the main control chip, and the second pin of the sensor is connected to the 18th B pin of the main control chip. One end of the first pull-up resistor is connected to the 3V3 power supply, and the other end is electrically connected to the first pin of the temperature and humidity sensor. One end of the second pull-up resistor is connected to the first resistor, and the other end is electrically connected to the second pin of the temperature and humidity sensor. The third pin of the temperature and humidity sensor is connected to the 3V3 power supply, the fourth pin of the temperature and humidity sensor is grounded, one end of the first filter capacitor is electrically connected to the fourth pin of the temperature and humidity sensor, and the other end is electrically connected to the third pin of the temperature and humidity sensor.

[0007] Furthermore, the display screen assembly includes an LCD screen and a connector interface. The first pin and the second pin of the connector interface are respectively connected to the positive pole and the negative pole of the LCD screen. The connector interface is communicatively connected to the main control chip through the MIPI interface.

[0008] Furthermore, the minimum system of the main control chip is a quad-core ARM Cortex-A53 CPU + 512MB DDR3 + 512MB FLASH.

[0009] Furthermore, a USB interface, a WiFi&BT communication interface, a ZIGBEE communication interface, and a PDM protocol interface electrically connected to the main control chip are further provided on the speaker housing.

[0010] Furthermore, a light sensor, a touch screen, and an LED light ring electrically connected to the main control chip are further provided on the speaker housing. The light sensor is used to obtain ambient light data.

[0011] Furthermore, the intelligent speaker with temperature and humidity display function further includes a speaker and a microphone. The speaker is electrically connected to the main control chip through the IIS protocol audio output interface. The microphone is electrically connected to the main control chip through the PDM protocol interface.

[0012] Advantages of the utility model:

[0013] The present utility model provides an intelligent speaker with temperature and humidity display functions through the design of an intelligent speaker integrated with temperature and humidity display functions. This intelligent speaker not only has the conventional audio playback function, but also adds environmental monitoring features. It collects temperature and humidity data in real time through a built-in temperature and humidity detection module board, processes these data using the main control circuit board, and then intuitively displays them to the user via the display screen assembly. The I2C interface is used for low-speed data transmission between the temperature and humidity detection module board and the main control circuit board, while the MIPI interface supports high-speed and efficient data communication between the display screen assembly and the main control board. This application not only has a simple structure, strong practicability, but also low cost. Description of the Drawings

[0014] Figure 1 It is a module diagram of an intelligent speaker with temperature and humidity display functions according to the present utility model;

[0015] Figure 2 It is a circuit schematic diagram of the control circuit in an intelligent speaker with temperature and humidity display functions according to the present utility model;

[0016] Figure 3 It is a circuit schematic diagram of the display screen assembly in an intelligent speaker with temperature and humidity display functions according to the present utility model;

[0017] Figure 4 It is a circuit schematic diagram of the temperature and humidity sensor in an intelligent speaker with temperature and humidity display functions according to the present utility model; Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indicators will also change accordingly.

[0020] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0021] The present utility model provides an intelligent speaker with temperature and humidity display functions.

[0022] In an embodiment of the present utility model, as Figures 1-4 shown, the intelligent speaker with temperature and humidity display functions includes a speaker housing and a display screen assembly for displaying temperature and humidity. A main control circuit board and a temperature and humidity detection module board for obtaining original temperature and humidity data are installed in the speaker housing. The temperature and humidity detection module board is snap-connected to the inner side wall of the speaker housing. The temperature and humidity detection module board is communicatively connected to the main control circuit board via I2C. The display screen assembly is installed on the speaker housing and is communicatively connected to the main control circuit board via an MIPI interface.

[0023] In this embodiment, a control circuit is provided on the main control circuit board. The control circuit includes a main control chip, a first resistor, a second resistor, a first capacitor, a second capacitor, and a third capacitor. One end of the first resistor is grounded, and the other end is connected to the sixteenth F pin of the main control chip. One end of the second resistor is grounded, and the other end is connected to the sixteenth E pin of the main control chip. One end of the first capacitor is connected to the second resistor, and the other end is connected to the sixteenth K pin of the main control chip. The sixteenth K pin of the main control chip is connected to a 1.8V power supply. The fourth E pin of the main control chip is connected to a 3V3 power supply. One end of the second capacitor is grounded, and the other end is connected to the fourth E pin of the main control chip. The fourteenth B pin of the main control chip is connected to a 3V3 power supply. The eighteenth C pin and the eighteenth F pin of the main control chip are connected to each other, and the common end of the eighteenth C pin and the eighteenth F pin of the main control chip is grounded. One end of the third capacitor is grounded, and the other end is connected to the common end of the eighteenth C pin and the eighteenth F pin of the main control chip.

[0024] In this embodiment, the temperature and humidity detection module board includes a temperature and humidity sensor, a first pull-up resistor, a second pull-up resistor, and a first filter capacitor; the first pin of the sensor is connected to the 18th A pin of the main control chip, the second pin of the sensor is connected to the 18th B pin of the main control chip, one end of the first pull-up resistor is connected to the 3V3 power supply, and the other end is electrically connected to the first pin of the temperature and humidity sensor. One end of the second pull-up resistor is connected to the first resistor, and the other end is electrically connected to the second pin of the temperature and humidity sensor. The third pin of the temperature and humidity sensor is connected to the 3V3 power supply, the fourth pin of the temperature and humidity sensor is grounded, one end of the first filter capacitor is electrically connected to the fourth pin of the temperature and humidity sensor, and the other end is electrically connected to the third pin of the temperature and humidity sensor.

[0025] In this embodiment, the display screen assembly includes an LCD screen and a connector interface; the first pin and the second pin of the connector interface are respectively connected to the positive electrode and the negative electrode of the LCD screen; the connector interface is communicatively connected to the main control chip through the MIPI interface.

[0026] In this embodiment, the minimum system of the main control chip is a quad-core ARM Cortex-A53 CPU + 512MB DDR3 + 512MB FLASH.

[0027] In this embodiment, a USB interface, a WiFi&BT communication interface, a ZIGBEE communication interface, and a PDM protocol interface electrically connected to the main control chip are further provided on the speaker housing.

[0028] In this embodiment, a light sensor, a touch screen, and an LED light ring electrically connected to the main control chip are further provided on the speaker housing, and the light sensor is used to obtain ambient light data.

[0029] In this embodiment, the intelligent speaker with temperature and humidity display function further includes a speaker and a microphone. The speaker is electrically connected to the main control chip through the IIS protocol audio output interface; the microphone is electrically connected to the main control chip through the PDM protocol interface.

[0030] Specifically, the minimum system of the main control chip DD1H uses a quad-core ARM Cortex-A53 CPU + 512MB DDR3 + 512MB FLASH. The main control chip DD1H controls the LCD screen for display through the MIPI protocol, communicates through the IIC protocol to judge touch actions on the touch screen for interaction, controls the LED driver chip through the IIC protocol, and then controls the display of the LED light ring. The main control chip DD1H conducts data interaction with external USB devices through the USB interface. The main control chip DD1H communicates with the WiFi&BT communication interface through the SDIO 3.0 protocol to achieve the networking function. The main control chip DD1H communicates with the BT communication interface through the UART protocol to achieve Bluetooth connection and data transmission. The main control chip DD1H communicates with the ZIGBEE communication interface through the UART protocol to control external ZIGBEE devices. The main control chip DD1H obtains the recording signal of the microphone through the PDM protocol interface. The main control chip DD1H outputs the audio signal to the power amplifier through the IIS protocol, and the audio signal drives the speaker to emit sound after amplification. The main control chip DD1H communicates with the optical sensor through the IIC protocol to obtain ambient light data.

[0031] The main control chip DD1H communicates with the temperature and humidity sensor U1 through the IIC protocol. Among them, the temperature and humidity sensor U1 is used to obtain the original temperature and humidity information. After calculation and compensation, accurate temperature and humidity data are obtained and transmitted to the LCD screen through the MIPI interface, and the LCD screen displays the temperature and humidity values.

[0032] The K16, E4, and B14 pins of the main control chip DD1H are the power supply pins of the MIPI unit, GPIO unit, and I2C unit respectively. The 1.8V power supply flows into the K16 pin (AVDD18_MIPI) after being filtered by the capacitor C2, the 3.3V power supply flows into the E4 pin (VDDIO_Z) after being filtered by the capacitor C3, and the 3.3V power supply flows into the B14 pin (VDDIO_AO) after being filtered by the capacitor C4. The C18 pin and F18 pin of the main control chip DD1H are both DVSS pins, connected to GND, providing a reference level for the main control chip DD1H.

[0033] The D18, D19, E19, and E20 pins of the main control chip DD1H are MIPI_D0P, MIPI_D0N, MIPI_D1P, and MIPI_D1N respectively, and are used to output the data of the original temperature and humidity information obtained by the display to the LCD screen. The C19 pin and C20 pin of the main control chip DD1H are MIPI_CLKP and MIPI_CLKN respectively, providing a clock signal for transmitting display data between the main control chip DD1H and the LCD screen.

[0034] The F16 pin of the main control chip DD1H is PCIE_MIPI_REXT, which is connected to the resistor R15 to GND. The E16 pin of the main control chip DD1H is MIPI_REXT1, which is connected to the resistor R16 to GND. The D1 pin of the main control chip DD1H is GPIOZ_5, which is configured as LCD_TE to provide a data synchronization signal for the main control chip DD1H and the LCD screen. The D2 pin of the main control chip DD1H is GPIOZ_6, which is configured as LCD_RESET. The main control chip DD1H can provide a reset signal for the LCD screen through LCD_RESET.

[0035] The A18 pin and B18 pin of the main control chip DD1H are I2C_SDA_AO and I2C_SCL_AO respectively, which are connected to the SDA pin and SCL pin of the temperature and humidity sensor U1 through I2C_SCL and I2C_SDA for I2C communication. The 3V3 power supply is filtered by the first filter capacitor C1 to provide a power input for the temperature and humidity sensor U1. GND is the reference level of the circuit. I2C_SCL and I2C_SDA are the clock and data signals of the IIC interface used for communication between the temperature and humidity sensor U1 and the main control chip DD1H respectively. The power supply voltage is pulled up to 3V3 through the first pull-up resistor R1 and the second pull-up resistor R2 respectively, playing a role in stabilizing communication.

[0036] The connector interface J1 is used to connect the LCD screen. Among them, the resistors R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 play a role in protection and signal matching. Among them, LCD_LEDA and LCD_LEDK are connected to the positive and negative poles of the LCD screen respectively to supply power for the LCD screen backlight. The 3V3 power supply supplies power for the LCD screen. GND is the reference level of the circuit. LCD_RESET is the reset signal for the LCD screen. LCD_TE provides a data synchronization signal for the main control chip DD1H and the LCD screen. MIPI_D0P and MIPI_D0N, MIPI_D1P and MIPI_D1N, MIPI_CLKP and MIPI_CLKN are differential signals. Among them, MIPI_CLKP and MIPI_CLKN provide a clock signal for transmitting display data between the main control chip DD1H and the LCD screen. MIPI_D0P and MIPI_D0N, MIPI_D1P and MIPI_D1N are the data for transmitting display content between the main control chip DD1H and the LCD screen.

[0037] First, the main control chip DD1H communicates with the temperature and humidity sensor U1 through the IIC protocol to obtain the register value of the temperature and humidity sensor U1, and converts it into temperature data T0 and humidity data H0. The main control chip DD1H reads the volume ratio coefficient x of the power amplifier, the brightness ratio coefficient y of the light ring, and the brightness ratio coefficient z of the LCD, which are the main heat sources of the machine at this time. The temperature offset caused by the full load of the power amplifier is A, the temperature offset caused by the maximum brightness of the light ring is B, the temperature offset caused by the maximum brightness of the LCD is C, and the temperature offset of the machine base is D. Calculate the temperature compensation value △T1 = x * A + y * B + z * C + D; then calculate the temperature compensation value for the hysteresis change of the speaker compared to the external environment temperature: the temperature difference between the sensor at the current moment and n minutes ago is T0 - Tn, the smoothed temperature difference is AVG(T0 - Tn), and the temperature change rate is AVG(T0 - Tn)'. If AVG(T0 - Tn) * AVG(T0 - Tn)' < 0 and |AVG(T0 - Tn)| > E, then the hysteresis compensation factor F = 1, otherwise F = -1, and the hysteresis temperature compensation value △T2 = k1 * AVG(T0 - Tn) + k2 * (F + 1); calculate the temperature value T = T0 - △T1 + △T2 after heat generation temperature compensation and hysteresis temperature compensation. Then calculate the humidity deviation △H1 = j1 * (T - T0) + j2 caused by the difference between the compensated temperature value T and the original temperature data T0. Then calculate the humidity compensation value △H2 = j3 * AVG(T0 - Tn) * AVG(T0 - Tn) + [j4 * AVG(T0 - Tn) + j5] * (F + 1) for the hysteresis change of the speaker compared to the external environment humidity. Finally, calculate the humidity value H = H0 + △H1 - △H2 after temperature error compensation and hysteresis humidity compensation.

[0038] The smart speaker in this application is equipped with a temperature and humidity sensor that can work continuously, enabling real-time detection of the temperature and humidity of the current environment, and overcoming the temperature deviation and humidity deviation caused by the increase in the internal temperature of the smart speaker due to music playback, allowing users to easily obtain accurate indoor temperature and humidity.

[0039] Compared with the general smart speakers in the market, the smart speaker in this application can accurately and real-time feedback the indoor temperature and humidity, and is not affected by the increase in the internal temperature of the machine.

[0040] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An intelligent speaker with temperature and humidity display functions, characterized in that, It includes a speaker housing and a display screen assembly for displaying temperature and humidity. A main control circuit board and a temperature and humidity detection module board for obtaining original temperature and humidity data are installed in the speaker housing. The temperature and humidity detection module board is snap-connected to the inner side wall of the speaker housing. The temperature and humidity detection module board is communicatively connected to the main control circuit board via I2C. The display screen assembly is installed on the speaker housing and is communicatively connected to the main control circuit board via an MIPI interface. A control circuit is provided on the main control circuit board. The control circuit includes a main control chip, a first resistor, a second resistor, a first capacitor, a second capacitor, and a third capacitor. One end of the first resistor is grounded and the other end is connected to the sixteenth F pin of the main control chip. One end of the second resistor is grounded and the other end is connected to the sixteenth E pin of the main control chip. One end of the first capacitor is connected to the second resistor and the other end is connected to the sixteenth K pin of the main control chip. The sixteenth K pin of the main control chip is connected to a 1.8V power supply. The fourth E pin of the main control chip is connected to a 3V3 power supply. One end of the second capacitor is grounded and the other end is connected to the fourth E pin of the main control chip. The fourteenth B pin of the main control chip is connected to a 3V3 power supply. The eighteenth C pin and the eighteenth F pin of the main control chip are connected to each other, and the common end of the eighteenth C pin and the eighteenth F pin of the main control chip is grounded. One end of the third capacitor is grounded and the other end is connected to the common end of the eighteenth C pin and the eighteenth F pin of the main control chip.

2. The intelligent speaker with temperature and humidity display function according to claim 1, characterized in that, The temperature and humidity detection module board includes a temperature and humidity sensor, a first pull-up resistor, a second pull-up resistor, and a first filter capacitor. The first pin of the sensor is connected to the eighteenth A pin of the main control chip. The second pin of the sensor is connected to the eighteenth B pin of the main control chip. One end of the first pull-up resistor is connected to a 3V3 power supply and the other end is electrically connected to the first pin of the temperature and humidity sensor. One end of the second pull-up resistor is connected to the first resistor and the other end is electrically connected to the second pin of the temperature and humidity sensor. The third pin of the temperature and humidity sensor is connected to a 3V3 power supply. The fourth pin of the temperature and humidity sensor is grounded. One end of the first filter capacitor is electrically connected to the fourth pin of the temperature and humidity sensor and the other end is electrically connected to the third pin of the temperature and humidity sensor.

3. The smart speaker with temperature and humidity display function according to claim 2, characterized in that, The display screen assembly includes an LCD screen and a connector interface. The first pin and the second pin of the connector interface are respectively connected to the positive and negative poles of the LCD screen. The connector interface is communicatively connected to the main control chip via an MIPI interface.

4. The smart speaker with temperature and humidity display function according to claim 1, characterized in that The minimum system of the main control chip is a quad-core ARM Cortex-A53 CPU + 512MB DDR3 + 512MB FLASH.

5. The intelligent speaker with temperature and humidity display function according to claim 4, characterized in that A USB interface, a WiFi&BT communication interface, a ZIGBEE communication interface, and a PDM protocol interface electrically connected to the main control chip are also provided on the speaker housing.

6. The intelligent speaker with temperature and humidity display function according to claim 5, characterized in that, The speaker housing is also provided with a light sensor, a touch screen and an LED light ring that are electrically connected to the main control chip, and the light sensor is used to obtain ambient light data.

7. The intelligent speaker with temperature and humidity display function according to claim 6, characterized in that, The intelligent speaker with temperature and humidity display functions further includes a speaker and a microphone. The speaker is electrically connected to the main control chip through an IIS protocol audio output interface; the microphone is electrically connected to the main control chip through a PDM protocol interface.

Images