We are Team V from the joint institute in Shanghai Jiao Tong.University, Vg100 course. The Joint Institute is an institute founded by Shanghai Jiao Tong University and University of Michigan. The Um-SJTU Joint Institute is located in Ming Hang campus of Shanghai Jiao Tong University, Shanghai,China.
The Vg100 course is a course that offers 6 out of 19 freshman groups a chance to do his or her own project, and we are honored to have that chance.
In modern times, many parents with new-born-babies still have to work long hours. Sometimes parents leave their babies alone in the house and know nothing about the babies’ health status. Or sometimes they are just too busy to stay with the babies to look after them all the time.
So we designed a smart baby system. A smart baby system consists of three parts, a wearable ankle band, a translator, and an android App.
The ankle band measures the baby's body temperature and its heart beat and then send these data to the translator via bluetooth, and the translator, together with the data from the humidity sensor, send the data to a cloud sever via wi-fi network. The app can get all the data anywhere any time as long as there is internet connection.
Step 1: Budgets
Arduino Yun 480RMB
Arduino Nano 30RMB
Grove Base shield 49RMB
HC-05 Bluetooth*2 80RMB
Heartbeat sensor 105RMB
DHT11 sensor 39RMB
CR2032 battery*2 2.4RMB
Step 2: Step by Step 1 the Construction of the Band
For the band part, we need to solder the wires according to the circuit diagram using the Arduino Nano board. All the soldings must be coated with hot glue in order to avoid the possible short circuit.
As the circuit part is well soldered, we then seal all the electric parts inside a wrister and sew the wrister to make the whole system wearable for the baby.
Step 3: Step by Step2 the Construction of the Translator
The translator is based on an Arduino Yun board, which is a board that can connect to the internet with the Wi-Fi chip inside it. We added a grove base shield to it to make it easier to add sensors to it. Also, we connected the blue tooth receiver to the board to receive the signals from the band wirelessly. The whole system was wrapped up in a paper shell to make it safe for the babies.
Step 4: Step by Step3 Programming of the Band and the Translator
The Arduino Yun is a dual chip board which means that we can run the shell command through arduino commands. So we set up a Wi-Fi client and then send the datas to a cloud server called machtalk. The data are gathered at the translator via blue tooth net work and then they are send to the cloud via Wi-Fi network.
Step 5: Step by Step 4 Cloud Sever Setup
In this project, we used an open source cloud sever called the machtalk.net. all we need is to post the data every 5 second and the server will automatically store the data. Then we can get the data back in the App through the commands in the App. Also, the server can automatically send an E-mail to the app if the data is not within a certain range.
Step 6: Step by Step5 Android App Design
Install Java Develop Kit first, and then install SDK from the official website of Android. Then you can start to use Eclipse to deal with your personal Android App. The basic knowledge of JAVA may be helpful to programming. Since Android App is open-source for everyone, there are lots of example codes to learn.