Water level detection module and intelligent water dispenser

Abstract

The utility model provides water level detection module and intelligent drinking fountain, it is used for drinking fountain to carry out water adding detection, it includes: infrared TOF sensor unit and ultrasonic TOF sensor unit, it is used for identifying whether the water cup appears in the water receiving area of drinking fountain, the position of water cup, the structural features of water cup and the water level information in water cup etc.; detection control unit is used for connecting and controlling infrared TOF sensor unit and ultrasonic TOF sensor unit work, receives and according to the first detection information and second detection information output water adding detection signal. The application can realize high accuracy, stable and reliable, fast and convenient water level detection, and is not influenced by the environment, and the application scene is more extensive.

Description

Technical Field

[0001] This application relates to the field of intelligent water dispenser technology, and in particular to water level detection modules and intelligent water dispensers. Background Technology

[0002] Existing water supply control technologies in drinking water equipment mainly include four approaches: manual visual control, quantitative water supply control, infrared TOF sensor control, and ultrasonic TOF sensor control. While each of these technologies has its own characteristics, they all suffer from limitations in practical applications, such as limited detection accuracy, poor environmental adaptability, and low ease of use, making it difficult to meet the ever-increasing demands for intelligence and automation in drinking water equipment. Specifically:

[0003] 1. Manual observation method: Users need to visually judge the water level and manually turn off the water supply when the water level is close to the rim of the cup. This is inconvenient and prone to causing overflow due to operational delays, especially when using containers with low transparency or in poor lighting conditions, where the accuracy of judgment is poor. At the same time, users need to stay in front of the device for a long time, increasing the operational burden and seriously affecting the user experience and efficiency.

[0004] 2. Pre-quantitative water dispensing method: Some devices use a preset quantitative water dispensing method to control water filling, allowing users to select fixed levels such as 250ml or 500ml. While this method reduces user intervention, it cannot perceive the actual volume of the cup or the current water level, making it prone to overflow or insufficient filling due to mismatched cup sizes or inconsistent initial water levels, resulting in poor adaptability.

[0005] 3. Infrared TOF (Time-of-Flight) Sensor Solution: Infrared TOF sensors calculate distance by measuring the time it takes for an infrared beam to travel from emission to return, used to determine the height of a cup and the water surface. These sensors offer advantages such as certain ranging accuracy and non-contact measurement. However, water surfaces have low reflectivity to infrared light, and the TOF signal can be interfered with, especially by steam or mist generated by hot water, leading to data anomalies or loss. Some solutions use two infrared TOF sensors installed in different directions or positions, working together to measure the height of the cup and the water surface for water level monitoring and water filling control. However, this solution is not accurate enough for environments with low water sensitivity, such as hot water mist or steam. Furthermore, when using dual infrared TOF sensors, the two sensors need to be time-division multiplexed, meaning they take measurements at different times. This increases the system's response time and reduces its efficiency.

[0006] 4. Ultrasonic Time-of-Flight (TOF) Sensor Solution: Ultrasonic TOF sensors measure distance by emitting ultrasonic pulses and receiving the echo time reflected from the water surface. Compared to infrared TOF technology, ultrasonic sensors are more stable in environments with interference such as hot water and steam, and have a certain degree of anti-interference capability. However, their measurement angle is relatively large, and the measurement data is the same whether the cup is placed directly under the water outlet or not, making it impossible to determine the exact position of the cup. This can lead to incorrect water filling when the cup is not placed directly under the outlet. In addition, ultrasonic sensors have a certain measurement blind zone at close range, making it impossible to determine the height of the cup and the water level when the cup is high. The sensor placement also needs to avoid obstruction, resulting in poor structural layout flexibility. Furthermore, the propagation speed of ultrasonic TOF sensors may be affected by environmental factors such as air temperature and humidity, leading to measurement instability, especially under different environmental conditions (such as cold or hot environments).

[0007] In summary, existing drinking water equipment still suffers from technical problems such as insufficient accuracy in water level detection and water supply control, poor environmental adaptability, inconvenience in use, and poor user experience. Utility Model Content

[0008] This invention aims to address at least the technical problems of insufficient accuracy, poor environmental adaptability, inconvenience in use, and poor user experience in existing technologies. To this end, this invention proposes a highly stable, flexible, adaptable, low false triggering rate, simple external control, and highly efficient and accurate water level detection module, as well as an intelligent water dispenser.

[0009] To achieve the above objectives, this utility model proposes a water level detection module for detecting water filling in a water dispenser. The module includes: an infrared TOF sensor unit, which emits light towards the water dispensing direction of the water dispenser and receives the reflected light, and identifies first detection information including whether a water cup is present in the water dispensing area of ​​the water dispenser, the position of the water cup, the structural features of the water cup, and the water level information in the water cup; an ultrasonic TOF sensor unit, which emits ultrasonic waves towards the water dispensing direction of the water dispenser and receives the reflected ultrasonic waves, and identifies second detection information including whether a water cup is present in the water dispensing area of ​​the water dispenser, the position of the water cup, the structural features of the water cup, and the water level information in the water cup; and a detection control unit, which connects to and controls the operation of the infrared TOF sensor unit and the ultrasonic TOF sensor unit, and receives and outputs a water filling detection signal based on the first and second detection information.

[0010] Preferably, the infrared TOF sensor unit and the ultrasonic TOF sensor unit are mounted on the same PCB board.

[0011] Preferably, the infrared TOF sensor unit comprises a 6×6 TOF dot matrix.

[0012] Preferably, the detection control unit includes a data communication port, a clock communication port, and a signal output port. The data communication port and the clock communication port are both connected to the infrared TOF sensor unit and the ultrasonic TOF sensor unit. The signal output port of the detection control unit outputs a water addition detection signal.

[0013] Preferably, the detection and control unit includes a control chip of model GD32F310K, the ultrasonic TOF sensor unit includes an ultrasonic TOF sensor chip of model CH101, the I2C_SDA port of the control chip is connected to the data communication port, the I2C_SCL port of the control chip is connected to the clock communication port, the SDA port of the ultrasonic TOF sensor chip is connected to the data communication port of the detection and control unit, and the SCL port of the ultrasonic TOF sensor chip is connected to the clock communication port of the detection and control unit.

[0014] Preferably, the ultrasonic TOF sensor unit further includes a level conversion chip of model TXS0104E. The B2 port of the level conversion chip is connected to the I2C_SCL port of the control chip, the B3 port of the level conversion chip is connected to the I2C_SDA port of the control chip, the A2 port of the level conversion chip is connected to the clock communication port of the detection and control unit, and the A3 port of the level conversion chip is connected to the data communication port of the detection and control unit.

[0015] Preferably, a resistor is connected between the I2C_SCL port of the control chip and the B2 port of the level conversion chip, and between the I2C_SDA port of the control chip and the B3 port of the level conversion chip.

[0016] Preferably, the infrared TOF sensor unit further includes an infrared sensing chip of model NDS01A, the SCL terminal of the infrared sensing chip is connected to the clock communication port of the detection and control unit, and the SDA terminal of the infrared sensing chip is connected to the data communication port of the detection and control unit.

[0017] To achieve the above objectives, in a second aspect, this invention also provides an intelligent water dispenser, comprising the aforementioned water level detection module, water dispensing module, and control module. The control module receives a water addition detection signal output by the water level detection module, outputs a water dispensing control signal based on the water addition detection signal, and the water dispensing module operates according to the water dispensing control signal.

[0018] Preferably, the water level detection module is located at the water outlet of the smart water dispenser.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood in conjunction with the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the water level detection module provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the water level detection module provided in this embodiment of the utility model;

[0023] Figure 3 This is a circuit diagram of the water level detection module provided in this embodiment of the utility model.

[0024] Reference numerals: Infrared TOF sensor unit 11, Ultrasonic TOF sensor unit 12, Detection and control unit 13, Infrared TOF sensor chip U1, Ultrasonic TOF sensor chip U2, Control chip U3, Level conversion chip U4. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the application or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] refer to Figures 1 to 3This utility model proposes a water level detection module for detecting water filling in a water dispenser. It includes: an infrared TOF sensor unit 11, which emits light towards the water dispensing direction and receives the reflected light, identifying first detection information such as whether a water cup is present in the water dispensing area, the cup's position, structural features, and water level information; and an ultrasonic TOF sensor unit 12, which emits ultrasonic waves towards the water dispensing direction and receives the reflected ultrasonic waves, identifying second detection information such as whether a water cup is present in the water dispensing area, the cup's position, structural features, and water level information. A detection control unit 13 connects to and controls the operation of the infrared TOF sensor unit 11 and the ultrasonic TOF sensor unit 12, receiving and outputting a water filling detection signal based on the first and second detection information.

[0029] This patent addresses the shortcomings of existing water dispenser filling devices, such as the lack of intelligent water level detection and the instability, false triggering, and susceptibility to hot water vapor issues associated with single infrared TOF sensors, or the blind spots in single ultrasonic TOF sensors. It proposes a new technical solution combining a single infrared TOF sensor with an ultrasonic TOF sensor. This solution offers high adaptability and stability, effectively adapting to water cups of different sizes and materials, and reliably detecting water levels, especially in hot water and steam environments.

[0030] Please see Figure 2 In this embodiment, the infrared TOF sensor unit 11 and the ultrasonic TOF sensor unit 12 are mounted on the same PCB board.

[0031] In this embodiment, the infrared TOF sensor unit 11 includes a 6×6 TOF dot matrix.

[0032] In this embodiment, an 850nm wavelength infrared TOF sensor is preferred due to its high ranging accuracy and moderate ranging range, which effectively improves the accuracy of cup rim detection. Furthermore, the more pixels the infrared TOF sensor unit 11 has, the higher its resolution, which helps to further improve the accuracy and stability of cup rim recognition, ensuring the system's reliability in various environments.

[0033] Furthermore, the infrared TOF sensor unit 11 uses the NDS01A infrared TOF sensor chip U1 manufactured by Guangwei Technology Co., Ltd. The infrared TOF sensor chip U1 has good ranging accuracy and directionality, with a field of view of 20°×16°, utilizing 6×6 pixels around its optical center. The infrared TOF sensor chip U1 is mainly used to detect the placement position of the water cup, the height of the cup rim, and water level information. Its small single-point viewing angle allows it to accurately identify the position and structural features of the water cup, and can simultaneously measure the rim and bottom of the cup, helping to determine whether the water cup is in place. In addition, in practical applications, this infrared TOF sensor chip U1 can also participate in water level measurement, co-processing data with the ultrasonic TOF sensor chip to improve the overall accuracy and stability of the system's water level identification.

[0034] In this embodiment, to reduce bypass reflection interference and improve the purity of the water surface echo signal, an ultrasonic TOF sensor with a small field of view should be preferred. The ultrasonic sensor can still operate stably in complex environments (such as hot water and steam).

[0035] Furthermore, the ultrasonic TOF sensor employs the TDK Electronics CH101 or ICU-10201 ultrasonic TOF sensor chip U2. This module can be used for real-time water surface detection and is effectively adaptable to complex environments such as hot water and steam. In this system, the ultrasonic TOF sensor chip U2 not only performs the task of water level detection but can also measure the rim height or internal features of the cup. When used in conjunction with an infrared TOF sensor, it can achieve redundancy complementarity and multi-dimensional data fusion, thereby enhancing the system's adaptability and measurement stability in different types of cups and environments.

[0036] In this embodiment, the water level detection module further includes a detection control unit 13. The detection control unit 13 includes a data communication port and a clock communication port, both of which are connected to the infrared TOF sensor unit 11 and the ultrasonic TOF sensor unit 12.

[0037] In this embodiment, the detection control unit 13 should possess efficient computing power, capable of rapidly processing data from the TOF sensor and ultrasonic sensor, and outputting control signals for adding or stopping water addition in real time based on the detected water level information. The detection control unit 13 should have strong computing power and real-time performance to ensure the system's timely and accurate response.

[0038] In this embodiment, the detection control unit 13 includes a control chip U3 of model GD32F310K, and the ultrasonic TOF sensor unit 12 includes an ultrasonic TOF sensor chip U2 of model CH101. The I2C_SDA port of the control chip U3 is connected to the data communication port, and the I2C_SCL port of the control chip U3 is connected to the clock communication port. The SDA port of the ultrasonic TOF sensor chip U2 is connected to the data communication port of the detection control unit 13, and the SCL port of the ultrasonic TOF sensor chip U2 is connected to the clock communication port of the detection control unit 13.

[0039] Furthermore, the ultrasonic TOF sensor unit 12 also includes a level conversion chip U4 of model TXS0104E and peripheral circuitry. The B2 port of the level conversion chip U4 is connected to the I2C_SCL port of the control chip, the B3 port of the level conversion chip U4 is connected to the I2C_SDA port of the control chip, the A2 port of the level conversion chip U4 is connected to the clock communication port of the detection control unit 13, and the A3 port of the level conversion chip U4 is connected to the data communication port of the detection control unit 13.

[0040] Resistors are connected between the I2C_SCL port of the control chip and the B2 port of the level conversion chip U4, and between the I2C_SDA port of the control chip and the B3 port of the level conversion chip U4.

[0041] The infrared TOF sensor unit 11 also includes an infrared sensing chip of model NDS01A and peripheral circuits. The SCL terminal of the infrared sensing chip is connected to the clock communication port of the detection control unit 13, and the SDA terminal of the infrared sensing chip is connected to the data communication port of the detection control unit 13.

[0042] The following is in conjunction with the appendix Figure 3 The circuit schematic of this application is described in detail.

[0043] The control chip U3 (model GD32F310K) communicates with the infrared TOF sensor chip U1 (model NDS01A) and the ultrasonic TOF sensor chip U2 (model CH101) via the I2C protocol. The PB7 pin of the control chip U3 serves as the data communication port, and the PB6 pin serves as the clock communication port. The SCL port of the infrared TOF sensor chip U1 is connected to the PB6 pin of the control chip U3, and the SDA port of the infrared TOF sensor chip U1 is connected to the PB7 pin of the control chip U3.

[0044] The PB7 terminal of control chip U3 is connected to resistor R17 to port B3 of level conversion chip U4. The PB6 terminal of control chip U3 is connected to resistor R16 to port B2 of level conversion chip U4. The A2 terminal of level conversion chip U4 outputs a clock communication signal, and the A3 terminal outputs a data communication signal. The A2 terminal of level conversion chip U4 is connected to the SCL port of ultrasonic TOF sensor chip U2, and the A3 terminal of level conversion chip U4 is connected to the SDA port of ultrasonic TOF sensor chip U2.

[0045] This application also proposes an intelligent water dispenser, which includes a water level detection module, a water dispensing module, and a control module as described above. The control module receives a water addition detection signal output by the water level detection module, outputs a water dispensing control signal based on the water addition detection signal, and the water dispensing module operates according to the water dispensing control signal.

[0046] In this embodiment, the water level detection module is located at the water outlet of the smart water dispenser.

[0047] The following is combined with Figures 1 to 3 The working principle of this application will be explained below.

[0048] 1. Cup testing stage

[0049] First, the infrared TOF sensor unit 11 and the ultrasonic TOF sensor unit 12 are activated to detect the cup rim height. Since the water level detection module is located at the water outlet of the smart water dispenser, the infrared TOF sensor unit 11 emits infrared light towards the outlet, and the ultrasonic TOF sensor unit 12 emits ultrasonic waves in the same direction. Because the infrared TOF sensor has excellent spatial resolution, it can identify the cup's position, thus confirming whether the cup is properly placed. Simultaneously, the ultrasonic TOF sensor can also assist in determining the presence of the cup, improving the reliability of cup placement recognition. If neither sensor detects a reasonable cup rim height, the system determines that there is no cup or the cup is not properly positioned, and remains in standby mode. If valid cup rim data is detected, the system considers the cup ready and proceeds to the next stage.

[0050] 2. Water level detection stage

[0051] The detection and control unit 13 synchronously acquires the ranging data of the infrared TOF sensor unit 11 and the ultrasonic TOF sensor unit 12, and performs fusion calculation on the distance to the water surface.

[0052] Ultrasonic TOF sensors have good resistance to steam interference and are suitable for detecting the water surface in hot water cups; infrared TOF sensors can be used to assist in water surface identification, improve measurement accuracy and resistance to false triggering.

[0053] The detection and control unit 13 calculates the current water level based on the height of the cup rim and the water level measured by the two sensors. This water level value is compared with the set target water level to determine whether it is necessary to enter the water filling control stage.

[0054] 3. Water addition control stage

[0055] When the current water level is detected to be lower than the set target value, the system outputs a water addition detection signal through the detection control unit 13 to notify the external water addition system to start water addition. Specifically, the control module outputs a water outlet control signal according to the water addition detection signal, and the water outlet module works according to the water outlet control signal.

[0056] During the water filling process, the detection and control unit 13 continuously collects and integrates data from the two sensors in real time, dynamically updating the current water level. When the water level reaches the target value, the detection and control unit 13 immediately outputs a signal to stop water filling, ensuring the accuracy and safety of water filling.

[0057] 4. Exception handling mechanism

[0058] The system has complete anomaly detection capabilities. If an anomaly is detected during the water filling process, such as the cup being removed, a sudden change in the height of the cup rim, or loss of sensor data, the detection control unit 13 will immediately issue a signal to stop water filling and output an alarm status. In addition, if an abnormal rise in water level is detected (e.g., a sudden change in a short period of time), the system will also interrupt the water filling operation to prevent overflow and waste of resources.

[0059] The beneficial effects of this application are: by working in conjunction with an infrared TOF sensor and an ultrasonic TOF sensor, accurate water level detection can be achieved. Compared with a single sensor solution, the deviation in water level detection is significantly reduced and the stability of the measurement is improved.

[0060] The innovation of this patent is mainly reflected in the following aspects:

[0061] 1. Improved Accuracy. By combining infrared TOF and ultrasonic TOF technologies, the limitations of a single sensor are overcome, ensuring high accuracy in water level detection. The infrared TOF sensor and the ultrasonic TOF sensor accurately measure the height of the cup's rim and the water level. This fused measurement result is particularly suitable for scenarios with varying water levels and surface fluctuations.

[0062] 2. Hot Water Adaptability. The ultrasonic TOF sensor's advantages in high-temperature and steam environments solve the problem of poor stability often found in traditional sensors in hot water environments. Infrared TOF sensors are usually affected by steam or water mist, while the ultrasonic TOF sensor can maintain stable operation in these high-temperature and water mist environments, ensuring the reliability of the system in high-temperature scenarios.

[0063] 3. Multi-layer sensor fusion. This patent employs data fusion from infrared TOF sensors and ultrasonic TOF sensors, which not only improves the stability of measurement results but also enables the system to adapt to more complex working environments. Through data fusion, the system can intelligently determine the current measurement environment and select the most suitable sensor data, thereby greatly improving the overall detection accuracy and reliability.

[0064] 4. Contactless Intelligent Control. This patent enables completely contactless operation of water level monitoring, avoiding the cumbersome process of manual intervention or adjustment required in traditional technologies. The system detects the water level in real time and automatically feeds it back to the water supply control system, intelligently adjusting the water supply volume to avoid overflow and waste, thereby improving ease of use and water-saving efficiency.

[0065] 5. System Compatibility and Scalability. The system design fully considers compatibility and scalability, adapting to water cups of various shapes and sizes, and seamlessly integrating with existing water filling systems. This flexible design gives the technology broader application prospects in the market and facilitates future technology upgrades and functional expansions.

[0066] 6. Application Prospects. This patent not only significantly improves the intelligence level of water dispenser systems, but can also be widely applied to other devices requiring precise water level control, such as coffee machines, automatic beverage machines, and home appliances. With its efficient and stable water level detection capabilities, it reduces manual intervention, optimizes the user experience, and effectively improves water-saving efficiency. With the increasing demand for smart homes and automation equipment, this system has significant commercial value, broad market application prospects, and enormous technological potential.

[0067] In summary, the water level detection system provided by this patent has strong technical advantages, can effectively solve the shortcomings of existing technologies, has broad market application potential, and is easy to integrate into existing equipment for promotion, thus possessing high commercialization and industrialization prospects.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water level detection module for detecting water filling in a water dispenser, characterized in that, It includes: An infrared TOF sensor unit is used to emit light in the direction of water dispensing from the water dispenser and receive the reflected light. It is used to identify first detection information, including whether a water cup appears in the water dispensing area of ​​the water dispenser, the position of the water cup, the structural features of the water cup, and the water level information in the water cup. An ultrasonic TOF sensor unit is used to generate ultrasonic waves in the direction of water dispensing from the water dispenser and receive the reflected ultrasonic waves. It is used to identify second detection information, including whether a water cup is present in the water dispensing area of ​​the water dispenser, the position of the water cup, the structural features of the water cup, and the water level information in the water cup. as well as The detection control unit connects to and controls the operation of the infrared TOF sensor unit and the ultrasonic TOF sensor unit, and receives and outputs a water addition detection signal based on the first detection information and the second detection information.

2. The water level detection module according to claim 1, wherein, The infrared TOF sensor unit and the ultrasonic TOF sensor unit are mounted on the same PCB board.

3. The water level detection module of claim 1, wherein, The infrared TOF sensor unit includes a 6×6 TOF dot matrix.

4. The water level detection module of claim 1, wherein, The detection and control unit includes a data communication port, a clock communication port, and a signal output port. The data communication port and the clock communication port are both connected to the infrared TOF sensor unit and the ultrasonic TOF sensor unit. The signal output port of the detection and control unit outputs a water addition detection signal.

5. The water level detection module according to claim 4, wherein, The detection and control unit includes a control chip of model GD32F310K, and the ultrasonic TOF sensor unit includes an ultrasonic TOF sensor chip of model CH101. The I2C_SDA port of the control chip is connected to the data communication port, the I2C_SCL port of the control chip is connected to the clock communication port, the SDA port of the ultrasonic TOF sensor chip is connected to the data communication port of the detection and control unit, and the SCL port of the ultrasonic TOF sensor chip is connected to the clock communication port of the detection and control unit.

6. The water level detection module according to claim 5, wherein, The ultrasonic TOF sensor unit also includes a level conversion chip of model TXS0104E. The B2 port of the level conversion chip is connected to the I2C_SCL port of the control chip, the B3 port of the level conversion chip is connected to the I2C_SDA port of the control chip, the A2 port of the level conversion chip is connected to the clock communication port of the detection and control unit, and the A3 port of the level conversion chip is connected to the data communication port of the detection and control unit.

7. The water level detection module of claim 6, wherein, A resistor is connected between the I2C_SCL port of the control chip and the B2 port of the level conversion chip, and between the I2C_SDA port of the control chip and the B3 port of the level conversion chip.

8. The water level detection module of claim 4, wherein, The infrared TOF sensor unit also includes an infrared sensing chip of model NDS01A. The SCL terminal of the infrared sensing chip is connected to the clock communication port of the detection and control unit, and the SDA terminal of the infrared sensing chip is connected to the data communication port of the detection and control unit.

9. An intelligent water dispenser, characterized in that, The water level detection module, the water outlet module and the control module are connected to each other.

10. The intelligent water dispenser according to claim 9, characterized in that, The water level detection module is arranged at the water outlet of the intelligent water dispenser.

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