Technical realization and advantages of the notification system
Find My Kids' choice of WhatsApp Green API as the notification service carrier has multiple technical advantages. The API is an enterprise-grade interface officially provided by WhatsApp Business, supporting up to 1,000 messages/second throughput and guaranteeing 99.9% service availability. Compared to traditional SMS notifications, it enables zero-cost instant messaging with excellent delivery rates worldwide.
In the system implementation, developers use environment variable configuration to manage API credentials (InstanceId and Token), which ensures security and facilitates deployment. When DeepFace recognizes a matching child's facial features, the system triggers an API call to send a structured notification with timestamps and confidence levels to a preset contact. The project documentation specifically emphasizes that there is no need to configure a webhook, a design that simplifies the deployment process and avoids the common problem of callback address validation.
Actual test data shows an average delay of only 2.3 seconds from the time the picture is uploaded to the time the parent receives the notification, and this real-time nature makes the system uniquely valuable in the area of child safety.
This answer comes from the articleFind My Kids: child safety monitoring tool through facial recognition and WhatsApp notificationsThe
