Multi-sensor Baby Walker

Project Cycle: May.2015–Oct.2015

Table of Contents

1. Abstract

Based on the traditional walking machine, an intelligent walking machine is designed by using the Internet of things, sensors and other technologies to realize the temperature and humidity, infrared, dumping detection.

The system integrates MPU6050 angle detection, HC-SR501 human infrared sensor, HC-SR04 ultrasonic ranging module, DHT11 humidity sensor, DS18B20 temperature sensor and other sensors for intelligent detection, and uses TI’s MSP430 as the core controller to transmit the detected information to the smart terminal app through CC2564 Bluetooth module, so as to realize the real-time monitoring of the status of infant in the walker(as shown in the figure 1).

Multi-sensor baby walker
Multi-sensor baby walker

2. Hardware design

2.1. Angle detection module

The module is integrated with an attitude solver, combined with Kalman filter algorithm, which can accurately output the current state in the dynamic environment, and the attitude accuracy reaches 0.01 °

MPU6050
MPU6050

2.2. Humidity sensor

It can be packaged and placed under the cushion to monitor whether the baby urinates or not, and remind parents to change diapers at any time.

DHT11
DHT11

2.3. Temperature sensor

Monitor the current ambient temperature to determine whether it is conducive to outdoor activities.

DS18B20
DS18B20

2.4. Ultrasonic ranging module

Monitor whether there are obstacles in a certain range of walkers, and timely remind parents to take care of them to prevent them from touching dangerous goods.

HC-SR04
HC-SR04

2.5. Human infrared sensor module

Monitor if there are people beside the car to ensure safety.

HC-SR501
HC-SR501

2.6. Bluetooth module

Through the Bluetooth module, the collected data is transmitted to the mobile app.

HC05
HC05

3. Software design

An app is developed based on Android system by using java language, , which has the functions of data display, information alarm, command control and so on.

APP function
APP function

4. Achievements

National Third Prize of TI Cup IOT Design Competition
National Third Prize of TI Cup IOT Design Competition
Provincial Special Prize of TI Cup IOT Design Competition
Provincial Special Prize of TI Cup IOT Design Competition
Xu Wei
Xu Wei
Software Engineer

The charm of technology is the perfect combination of hardware and software.

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