The present invention discloses an intelligent diaper monitoring device comprising a housing equipped with an attachment mechanism for detachable securing to a diaper. The housing includes a power source, a sensor array, a wireless communication module, and a controller. The sensor array features a wetness detection circuit, a humidity sensor, an ionic composition sensor, and one or more physiological sensors for monitoring at least one of heart rate, oxygen saturation, and temperature. The controller processes signals from the sensor array and communicates them to an external device via the wireless communication module. Additionally, the system includes a Wi-Fi connected hub or relay in communication with the wireless communication module, comprising an advanced wireless communication module, an LED, and a speaker to provide visual and auditory alarms, and to facilitate robust data transmission to external devices. This device provides comprehensive monitoring and real-time data transmission to ensure effective diaper management and wearer health monitoring.

A monitoring structure without chip including at least one first monitoring component. The at least one first monitoring component includes a first substrate and a first signal sensing portion. The first signal sensing portion includes a first signal sensing section, a second signal sensing section, a third signal sensing section and a fourth signal sensing section. The first signal sensing section, the second signal sensing section, the third signal sensing section and the fourth signal sensing section are disposed along a periphery of the substrate. The first signal sensing section and the third signal sensing section are connected to two opposite ends of the second signal sensing section, respectively. The fourth signal sensing section is connected to the third signal sensing section, and is spaced apart from the first signal sensing section via a notch.