Design and Development of an IOT based wearable device for the Safety and SecurityDivya Jain1, Kharanshu Bhavsar [email protected] [email protected] by Dr. Swarnalatha P.3M. Tech computer science student at Vellore Institute of Technology, Vellore, Tamil Nadu, India [1, 2]Associate Prof. at Vellore Institute Technology, Vellore VIT University, Vellore, Tamil Nadu, India—————————————————–***———————————————————-ABSTRACT There is numerous wearable in the market which helps track the day by day action of youngsters and furthermore help discover the child utilizing Wi-Fi and Bluetooth administrations present on the gadget. In any case, Wi-Fi and Bluetooth give off an impression of being a problematic mechanism of correspondence between the parent and youngster’s. Hence, the focal point of this paper is to have an SMS content empowered correspondence medium between the youngster’s wearable and the parent as nature for GSM versatile correspondence is practically present all over the place. The parent can send content with explicit catchphrases, for example, “Area” “TEMPERATURE” “UV” “SOS” “BUZZ”, “address the child”. Furthermore, we give a predefined nourishment sustenance outline to help infant remain healthy. Infants or a little child needs guardians’ consideration 24 hours per day and 7 days, which is basically unimaginable because of different needs like household exercises, official works, and individual works. INTRODUCTIONThe Internet of Things System (loT) refers to the set of devices and systems that stay interconnected with real-world sensors and actuators to the Internet. loT includes many different systems like smart cars, wearable devices and even human implanted devices, home automation systems and lighting controls; smartphones which are increasingly being used to measure the world around them. Similarly, wireless sensor networks that measure weather, flood defenses, tides and more. There are two key aspects to the loT: the devices themselves and the server-side architecture that supports them. The motivation for this wearable comes from the increasing need for safety for little children in current times as there could be scenarios of the child getting lost in the major crowded areas . Parents in the present world are busy in their professional life, so they do not get sufficient time to take care of their babies . Babies need 24×7 observation of their parents, which is very difficult for working parents. This prototype model solves the problem of time and energy usage of such parents. The room appliances are working with coordination of sensors and Arduino. Parents can set the electronic devices work according to the conditions they have given and they can operate these devices by their mobile phones even when they are away from the baby room . Most of the wearable available today are focused on providing the location, activity, etc. of the child to the parents via Wi-Fi and Bluetooth. But Wi- Fi and Bluetooth seem a very unreliable source to transfer information. Therefore it is intended to use SMS as the mode of communication between the parent and child’s wearable device, as this has fewer chances of failing compared to Wi-Fi and Bluetooth. The platform on which this project will be running on is the Arduino Uno microcontroller board based on the ATmega328P, and the functions of sending and receiving SMS, calls and connecting to the internet which is provided by the Arduino GSM shield using the GSM network. Also, additional modules employed which will provide the current location of the child to the parents via SMS. The second measure added is SOS Light indicator that will be programmed with Arduino UNO board to display the SOS signal using Morse code. In the scenario, a lost child can be located by the parent could send an SMS to the wearable device which would activate the SOS light feature on the wearable. Therefore alerting the people around the child that the child is in some distress and needs assistance as the SOS signal is universally known as the signal for help needed. Additionally, the wearable comes equipped with a distress alarm buzzer which sets to active by sending the SMS keyword “BUZZ” to the wearable. Hence the buzzer is loud and can be heard by the parent from very considerable distance. Also the parents via SMS can receive accurate coordinates of the child, which can help them locate the child with pinpoint accuracy . ALGORITHMFigure SEQ Figure * ARABIC 1 (Flow Chart)SYSTEM DESIGN AND ARCHITECTUREThis section discusses the architecture and the design methodologies chosen for the development of the Safety wearable device. A. System OverviewAn ATmega328p microcontroller controls the system architecture of the wearable device with an Arduino Uno boot-loader.Figure SEQ Figure * ARABIC 2 (System overview of the wearable device)The Fig. 2 illustrates the architecture of the safety wearable device, which depicts the various technologies and technological standards that are used. The Arduino Uno collects the data from the different modules interfaced to it, such as the GPS module upon being triggered by the Arduino Uno by receiving SMS from GSM module. The GSM module is used as an interface to send the data received by the Arduino Uno via SMS to a mobile. The GSM module functions as a trigger for the Arduino Uno to request data from its various modules connected to it. If an SMS text with specified keyword is sent to request the current location or GPS coordinates is sent to the GSM module via the user’s phone, then the GSM module triggers the Arduino Uno to request the current GPS coordinates .Figure SEQ Figure * ARABIC 3 (Arduino Uno)B. Wearable DeviceThe wearable device, for now, is not built on a system on chip model, rather has been proposed using larger components and can later build on the SOC platform once put into manufacture.Figure SEQ Figure * ARABIC 4 (Wearable device)The wearable device tasked with acquiring various data from the all the different modules connected to it. It comprises of Arduino Uno based on the ATmega328P microcontroller. The arduino uno receives data from different modules and analysis the data and customizes the data in a user understandable format. For the moment the design is not made compact, since the main focus now has been to show that this concept of smart wearable would be highly impactful for the safety. The wearable system runs on a battery or any external source. In order to minimize power consumption, the wearable device has been programmed to provide GPS and other information only upon request by SMS text via GSM.C. Gps location sensorFigure SEQ Figure * ARABIC 5 (GPS Sensor)For determining the real time location of the device NEO6MV2 GPS module has been used which communicates with the Arduino Uno through a 9600 bps software serial interface. The connections between the Arduino Uno and the GPS module established like the connections with GSM module. It has a low power consumption and small size, which is very compact. The GPS module output comprises of standard string information which is governed by the National Marine Electronics Association (NMEA) protocol. Once the SMS trigger text “LOCATION” is sent from the cell phone of the user, this text is received by the GSM which in turn triggers the Arduino Uno to execute the GPS code to fetch the current, accurate location of the GPS module. The location output received from the GPS module is in the following format:Figure SEQ Figure * ARABIC 6 (Output received GPS location sensor)The latitude and longitude coordinates received are stored in variables called “latitude” and “longitude,” which are then called upon when the SMS text received on the GSM module matches with the keyword “LOCATION”. Once the SMS trigger text “LOCATION” is sent from the smartphone of the user, this text is received by the Arduino GSM Shield which in turn triggers the Arduino Uno to execute the GPS code to fetch the current, accurate location of the GPS module.D. SOS lightAnother theory that this paper focuses on is that bystanders are the first mode of help for a missing person. The purpose of the SOS light is to be able to alert the people nearby that the person might be in distress since the light will be flashing the universal SOS light symbol which may people nowadays know for to be a sign for help. This can be activated by the parent itself by sending an SMS text with the keyword “SOS” to the wearable which will activate the SOS light flashing. The SOS light works on the principal of Morse code in which “S” stands for three short dots and the “O” stands for three long dashes. Since a very long time the SOS signal has been universally known for being the sign of distress and help. The SOS signal is referred to by all security personals, who if find the person to be missing can act and help locate the parents with surplus resources present at their disposal. The SOS light is connected to the pin of the Arduino.E. AlarmIn the scenario, if a child is separated from his/her parents. The parent can locate the child by sound in a very loud alarm on the Wearable. To achieve this, a piezoelectric buzzer is used, which is responsible for emitting a strong tone upon the output being set to HIGH. The buzzer module is activated upon sending an SMS text with the keyword “BUZZ” from a cell phone. Also, this buzzer works similar to the SOS led by alerting the people nearby with the distressed tone that the child might be lost and is in need of assistance. The buzzer is the child might be lost and is in need of assistance. The buzzer is connected to the digital pin of the Arduino.F. TEMPERATURE SENSORThe Arduino LM35 Linear Temperature Sensor module which depends on the semiconductor LM35 temperature sensor. The LM35 Linear Temperature Sensor module can be utilized to recognize encompassing air temperature. This sensor is produced by National Semiconductor Corporation and offers a functional range between – 40 degree Celsius to 150 degree Celsius. Sensitivity is 10mV per degree Celsius. The output voltage is directly proportional to the temperature. It is usually utilized as temperature estimation. It incorporates thermocouples, platinum protection, warm protection and temperature semiconductor chips, which regularly utilized as a part of high temperature estimation thermocouples. The LM35 linear temperature sensor and sensor-specific expansion of Arduino board, in combination, can be very easy to achieve. The LM35 temperature sensor is used to detect precise centigrade temperature. The yield of this sensor changes depicts the linearity. The output voltage of this IC sensor is straightly similar to the Celsius temperature. The operating voltage range of this LM35 ranges from-55˚ to +150˚C and it has low self-heating. This is operated under 4 to 30 Volts. Coverage Range is 0’c to 100’c.Figure SEQ Figure * ARABIC 8 (LM35)G. GLOBAL SYSTEM FOR MOBILERS232 interface @ RMC Connector for direct communication with PC or MCU kit Configurable baud rate SMA connector with GSM Antenna. SIM Card container. Built in Network Status LED Inbuilt Powerful TCP/IP protocol stack for internet data transmit over GPRS. Audio interface Connector Normal operation temperature: -20 °C to +55 °C. Input Voltage: 4.5V-12V DC .Figure SEQ Figure * ARABIC 9 (GSM Shield)4. Smart Baby room prototype modelNowadays, people are very busy in their daily routine. So, they don’t have much time to take care of their babies for 24 hours. Parents hire babysitters for taking care of their kids. Today, everything is technology based so the baby care should also be automatic by using technology. IOT is a good platform to make an automatic baby care room. First we have to notice all the activities of babies and then embed the sensors according to the activities. There are many sensors which can sense many basic things, such as temperature sensor to sense the heat, movement sensor to sense any motion, pressure sensors for pressure, voice sensors to detect voices etc. In the future, a smart nursery room will be necessity for all the parents.Figure SEQ Figure * ARABIC 10 (Baby Room Scenario)A nursery room should have a temperature sensor which can measure the temperature of the room and can adjust the temperature as required. Temperature sensor can also sense the body temperature of baby if it is not normal then it can also inform the parents via any communication media. A light sensor is also necessary for kid’s room it will sense if it is dark in the room it will turn on the LED. Parents can also have the control of light source from a remote place on their phones or other related devices. Voice sensor can sense the voice or noises. If parents record the voice of baby when he is crying then it will sense and inform the parents whether baby is crying. Movement sensor can be used with various sensors. Like if baby woke up and he will start moving his legs or arms then it will sense the movement and trigger the light so that baby will not be afraid of dark.CONCLUSIONThe implementation of Design and Development of an IOT based wearable device for the Safety and Security the children and it can also be effectively used for women, elderly people to protect them and safeguard in the fastest way which is possible automatically. This system mainly focuses on a wireless method which will alert and communicates with secure medium and can perform the real time monitoring of particular zone and detect the safety with safety accuracy. This idea can be implemented in different areas of security around he school zones, institutions, shopping zones, where facing perilous situations happens because of attacks. 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