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KR-102963028-B1 - Bathroom Environment Control Device and Method

KR102963028B1KR 102963028 B1KR102963028 B1KR 102963028B1KR-102963028-B1

Abstract

A bathroom environment control device according to the present embodiment includes a housing, a sensor unit disposed within the housing for detecting environmental data of the bathroom, a fan module disposed within the housing for blowing air, and a control unit electrically connected to the sensor unit and the fan module for controlling the operation of the fan module based on data from the sensor unit.

Inventors

  • 박민규

Assignees

  • 주식회사 큐앤에이랩스

Dates

Publication Date
20260512
Application Date
20251020

Claims (15)

  1. Housing; A sensor unit disposed within the above housing to detect environmental data of the bathroom, comprising an ammonia gas sensor; A fan module disposed within the above housing to blow air; A UV-C light disposed within the above housing and emitting ultraviolet rays in the 222nm band; and A control unit electrically connected to the sensor unit, the fan module, and the UV-C light to control the operation of the fan module and the UV-C light based on data from the sensor unit, comprising an AI module that analyzes the environmental data collected from the sensor unit, wherein the AI module comprises a hybrid model combining a convolutional neural network (CNN) and a decision tree. The control unit schedules the warm air or blower control to take precedence over the ultraviolet irradiation when the warm air or blower control command for the fan module and the ultraviolet irradiation command for the UV-C light conflict with each other. A bathroom environment control device comprising: a control unit that stores sensor data and driving results in a log, collects user feedback to update a prediction model, and distributes the updated model wirelessly to personalize control.
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  5. In paragraph 1, The above sensor unit is a bathroom environment control device comprising a humidity sensor and a human body detection sensor.
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  7. In paragraph 1, The above sensor unit is a bathroom environment control device comprising an illuminance sensor and a temperature sensor.
  8. In paragraph 1, The above housing is a bathroom environment control device that further includes a waterproof or dustproof structure.
  9. (a) A step of collecting at least one sensor data among humidity, temperature, odor-related gas, illuminance, and human body detection from a bathroom space; (b) A step of performing a prediction step to classify the bathroom condition using the sensor data above as input; (c) A step of calculating at least one driving command among blowing air, warm air, ultraviolet irradiation, and fragrance spraying based on the above prediction results, wherein, by referring to a state-behavior matching rule, a command including simultaneous driving of blowing air and warm air in a high humidity state is calculated, and if there are conflicting commands, the hot air and blowing air control is scheduled to take priority over ultraviolet irradiation, and if classified as an odor state, a driving command is calculated to control ultraviolet irradiation and fragrance spraying in parallel; (d) a step of driving an actuator corresponding to the above driving command, comprising applying safety logic to block UV irradiation when a human body detection signal is true when performing UV irradiation, limiting the UV irradiation wavelength to the 222 nm band, and including a safety stop procedure to immediately stop all actuator driving and cut off power when an impact detection signal occurs; and (e) storing sensor data from step (a) and driving results from step (d) as logs, collecting user feedback to update the prediction model of step (b), and distributing the updated model wirelessly to personalize control; comprising a bathroom environment control method.
  10. In Paragraph 9, A bathroom environment control method in which the sensor data collected in step (a) includes both humidity data and ammonia gas concentration data, and in step (b), the combination of the two data is used as a major feature for state classification.
  11. In Paragraph 9, A bathroom environment control method in which the prediction of step (b) above is performed in a hybrid manner combining a neural network-based model and a decision tree-based model.
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Description

Bathroom Environment Control Device and Method The invention according to the present embodiment relates to a bathroom environment control device and method for automatically detecting and controlling the environment of a bathroom space. Bathroom spaces can provide an environment where bacteria and mold thrive due to high humidity and temperature fluctuations. Particularly in the dry bathroom culture of North America, studies have found that an average of over 15.8 million CFU of microorganisms inhabit shower curtains and bathroom floors, and it appears that 42% of North American adults clean their bathrooms less than once a month. In environments with humidity exceeding 70%, bacterial growth rates more than double, which can cause infectious diseases such as pneumonia, sepsis, and meningitis, especially in newborns and infants. Furthermore, hypochlorous acid generated from cleaning agents used in bathrooms can have harmful effects on the respiratory system, eyes, and skin. Conventional ventilation fans alone take more than eight hours to dry a bathroom, during which time bacterial levels can reach a dangerous level of over 600. FIG. 1 may be a perspective view showing the overall configuration of a bathroom environment control device according to the present embodiment. FIG. 2 is a block diagram showing the system architecture of a bathroom environment control device according to the present embodiment. FIG. 3 is a diagram showing an AI control flowchart according to the present embodiment. FIG. 4 is a side cross-sectional view of a bathroom environment control device according to the present embodiment. Figure 5 is a diagram showing the structure of an AI learning dataset according to the present embodiment. FIG. 6 is a diagram showing the configuration of a remote control and a smartphone connection according to the present embodiment. In this specification, an orthogonal coordinate system may be used to describe the configuration and arrangement of the bathroom environment control device. The X-axis may represent the width direction of the device, the Y-axis the height direction of the device, and the Z-axis the depth direction of the device. When the device is installed on a wall, the plane parallel to the wall may be used as the reference plane, and the top may be defined as the positive Y-axis direction, the bottom as the negative Y-axis direction, the front as the positive Z-axis direction, and the rear as the negative Z-axis direction. The left may be defined as the negative X-axis direction, and the right as the positive X-axis direction. These coordinate system and direction definitions are intended to aid in understanding the invention and do not limit the scope of the rights. Dimensional measurements are based on the maximum outline of each component, and tolerances may vary within the range of manufacturing allowable error. In the present specification, the actuator is a component that performs physical operation according to a driving command of a control unit (140), and may include a fan module (130), a UV-C light (150), a diffuser (160), a speaker (170), and a display as shown in FIG. 2. Referring to FIG. 1, the bathroom environment control device (100) according to the present embodiment may be an integrated system that detects and automatically controls the environment of a bathroom space in real time. The housing (110) may have a size of 400mm x 180mm x 150mm and may be designed as a wall-mounted structure or a shower partition-mounted structure. Furthermore, the outer surface of the housing (110) may adopt a biophilic design with a pebble texture to harmonize with the bathroom interior. The housing (110) may include a waterproof structure that satisfies a waterproof rating of IPX4 or higher, and may have a built-in safety device that automatically cuts off the power upon detection of an impact. Referring to FIG. 2, the sensor unit (120) according to the present embodiment is positioned at the front of the housing (110) to collect environmental data of the bathroom in real time. The sensor unit (120) may include a humidity sensor (121), a temperature sensor (122), an ammonia gas sensor (123), an illuminance sensor (124), and a human body detection sensor (125). Specifically, the humidity sensor (121) can measure relative humidity from 0% to 100%, and the measurement accuracy may be ±2% RH. Additionally, the temperature sensor (122) can measure a temperature range from -20°C to 80°C, and the measurement accuracy may be ±0.5°C. Furthermore, the ammonia gas sensor (123) can detect ammonia concentration from 0 ppm to 100 ppm and can monitor the main odor-causing substances in the bathroom. The illuminance sensor (124) can determine the lighting conditions of the bathroom by measuring illuminance from 0 lux to 10,000 lux. Furthermore, the human body detection sensor (125) can detect human movement within a range of 3 m to 5 m using a PIR sensor or a microwave sensor. The fan module (130) acco