Signage display device provided in interactive swimming pool

A signage display device provided in an interactive swimming pool, the device comprising:

• a display having a plurality of signage display modules;
• a plurality of sensors that sense a user located in a swimming pool area formed above the signage display modules;
• and
• a processor that receives signals acquired by the plurality of sensors to detect a user located in the swimming pool area,
• wherein each of the plurality of sensors is an RGB illuminance sensor,
• wherein signals acquired and received by the plurality of sensors include sunlight emitted from the sun and an RGB reflective light,
• wherein the processor receives the signals acquired by the plurality of sensors, removes a DC component associated with the sunlight to extract the RGB reflective light reflected on a swimmer body part and then received, and detects a user based on an intensity of the extracted RGB reflective light,
• wherein each of the plurality of sensors is disposed between pixels of the signage display module,
• wherein the processor extracts a RGB reflective light for each of a plurality of signals acquired by the plurality of sensors, and detects a user based on an intensity of the RGB reflective light extracted for each of the plurality of signals, and
• wherein the processor determines, when a sum of the intensities of the extracted RGB reflective lights is above a first threshold and below a second threshold, that a user is present in a swimming pool area formed above the signage display module, and generates screen information to be output to the signage display module based on a result of the determination.

A method of controlling a signage display device provided in an interactive swimming pool, the method comprising:

• sensing a user located in a swimming pool area formed above a signage display module by a plurality of sensors to acquire a signal;
• receiving the acquired signal to detect a user located in the swimming pool area;
• generating screen information associated with the detected user based on a result of the detection;
• and
• outputting the generated screen information to the signage display module,
• wherein the receiving of the acquired signal to detect a user located in the swimming pool area comprises:
• receiving first and second signals acquired by first and second sensors among the plurality of sensors;
• removing a DC component associated with sunlight from the received first and second signals to extract first and second RGB reflective lights reflected on a swimmer body part and then received;
• and
• detecting a user based on intensities of the extracted first and second RGB reflective lights, and
• wherein the detecting of a user based on intensities of the extracted first and second RGB reflective lights comprises:
• determining, when an intensity of at least one of the extracted first and second reflective lights is above a first threshold and below a second threshold, that the user is located in a sensing area of the first and second sensors, and comparing intensities of the extracted first and second reflective lights to determine a first swimming pool area where the user is located;
• and
• determining, when an intensity of at least one of the extracted first and second reflective lights is above the second threshold, that there are a plurality of users in the sensing area of the first and second sensors, and calculating a user density of a swimming pool area formed above a signage display module disposed between the first and second sensors.