An Android Wear OS Framework forSensor Data and Network Interfaces

An Android Wear OS Framework forSensor Data and Network Interfaces


Wearable devices like smartwatches conquer themarket and simplify our everyday life. Mostly, these devices areconnected to our mobile phones, helping us to make communica-tion easier and faster. However, wearable devices feature plentyof sensors and network interfaces that are mostly unused. Thus,the question arises on how to use this potential to improve thefunctionality and user experience of handset applications.This paper presents a framework for the Android operat-ing system which enables us to retrieve information from thewearable device and store and use it on the handheld device.The primary focus lies on sensor and network interfaces, andas a result, this information can be considered for furthercomputations. We offer the framework as an Android librarywhich can be included in all Android projects.We evaluate the framework by conducting network perfor-mance tests as well as tests regarding CPU, memory and batteryusage, and achieve promising results. Concluding, we can saythat the wearable technology offers lots of opportunities forpresent and future Android projects. Due to the different typesof framework services, we achieve the goal of providing a broadbase of information that can be utilized by all developers.

Today, there are many wearable devices on the market whichsimplify our everyday life. This technology includes deviceslike activity trackers, smart glasses, and smartwatches. Mostly,these devices are connected to our smartphone, helping us tomake communication in our public life easier and faster.Wearable devices feature an abundance of sensors andnetwork interfaces that mostly remain unchallenged. Thisis due to the habits of an average user which are mainlycharacterized by getting notifications of incoming messagesor receiving weather news. Thus, the question arises how touse a wearable device’s hidden potential, mainly to improvethe functionality and user experience of handset applications.Furthermore, this research will try to explore the possibilitiesand limits current wearable devices bring to be able to assesstheir capabilities.To this end, the idea came up to design a solution that makesit possible to use corresponding wearable functions efficiently.The design should enable developers and users to accesswearable interfaces and sensors remotely via mobile phone.The so far unchallenged wearable should thus become a newsource of information from which we can obtain additionaldata. Using this additional data raises the possibility to developnew functions and improve existing ones on the mobile phone.We motivate the realization of this idea by the challenges inour network applicationopptain[4].opptainis an applicationfor Android that uses Opportunistic Networking [7] for localdata exchange.opptainmanages its data exchange betweenclients via Wi-Fi. If a network node is a hotspot in thenetwork, it can only accept incoming requests but not scanfor available participants at the same time; and if two hotspotsmeet, they will not see each other. A problem is the Wi-Fichip on Android devices, which can only either be hotspotor client at the same time. With the help of a second Wi-Fimodule, the one in the wearable device, we can solve thisproblem. In general, the framework creates a solid base ofinformation generated by our wearable. We can use thisinformation for similar problems without being limited toWi-Fi or specific topics like Opportunistic Networking. Acommon field of research is the use of the wearables’ bodysensors [2]. These can be used to monitor vital signs ofpatients and automatically call for help in emergencies.Code Shoppy
The contribution of this work is a library that can beintegrated into present and future Android projects. Theintuitive usage of this framework allows future developersto focus on realizing their idea rather than dealing withimplementation difficulties to gain desired data. Theimplementation allows the user to access network interfacesand sensor and control element functions of the wearableand to transfer corresponding data to the mobile application.Through the various services that can be accessed, we createa broad information base on the side of the mobile phonewhich can be involved in future computation. This additionalknowledge enables the user to make better decisions thatfinally improve the usability and functionality of the mobileapplication itself. Considering that most customer complainsaddress functionality problems or functionality request [6],the need for our framework is emphasized.https://codeshoppy.com/android-app-ideas-for-students-college-project.html

 Wallet App Credibility Analysis Based on App Content and User

Usage of online banking and mobile banking has already facilitated and added a dramatic change in customer’s life and now mobile wallets have made it easier by holding money digitally. According to reports, market leader PayTM in this space is downloaded by 40% of smart phone users in India and it has grown from 150-180 million-user base in two months [1]. According to Reserve Bank of India (RBI), a massive growth lies in the digital wallet adoption and usage as prime mode of payment [2]. RBI stated following points related to mobile wallet. In year 2015-2016, mobile wallet transactions were more than 490 billion, which was approximately five times more than the year 2014-15. A year-wise wallet app growth chart published by Reserve bank of India is shown in Figure 1 (a). Transactions through mobile wallets have grown 500% in between year 2014-16 (see Figure 1(b)). Digital wallet facilitates customers to digitally pay for a myriad of services but substantial utilization depends on reliability and acceptance of wallet app by its users. Most important factors to validate and analyze reliability and market acceptance of a wallet app are reviews and ratings as user-generated content. Surely, more reviews and ratings on an app give better probability to be explored and discovered to get knowledge out of it.

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Digital Ordering System on Android

Digital Ordering System on Android

Abstract— Technology has entered almost every field in our life, but still its effect is not yet that evident in the food industry, especially the food serving outlets including restaurants, hotels. Even today, most of the restaurants in India follow the traditional pen and paper method to take orders from customers, which wastes a lot of time of both, the customer and the restaurant. This work aims to substitute the traditional pen and paper method by automating the food-ordering process in restaurant and thus improving the dining experience of the customer.

https://codeshoppy.com/latest-mca-project-topics-2018.html

This paper proposes an automated system that uses wireless communication, a centralized database, and an android application to place the order without even waiting for a waiter. 
The android application installed in the touch screen device, fitted at the table, contains all the menu details with pictures of each item. The ordered details are wirelessly sent to the chef and the cashier. The manager has his own android application that is used to update the menu that updates the central database, view and manage table wise customers’ orders, and receive feedbacks from the customer. This system improves efficiency and accuracy for restaurants by saving time, eliminating human errors, getting customers feedback. 
As the system is automated, it becomes economical even from restaurants point of view, as it reduces manpower and it just requires one time investment in installing the devices at tables. Keywords— Digital food-ordering system, Wireless food-ordering system, Android application, Touch based food-ordering system, On site Automated food-ordering system.  

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A.Pen and paper based traditional system 
This is the simplest and the most widely used system even today. In this system, every time a customer enters the restaurant and occupies his table, a waiter comes at his table and presents him a menu card, with the record of food-items. Waiter then waits with a notepad and a pen to take down the customer’s order. The waiter then notes down the order of the customer in his notepad and the record is stored in the paper.

Finally, the record is given to the chef in the kitchen. Although the food ordering process in this system is very easy, there are many drawbacks in this system. This system requires storage of lots of paper which does paper wastage. Since, this is a complete manual process, there is a high chance of human errors due to many reasons such as while taking the orders the waiter may miss some items to add, the other human error is that the paper could get lost or could get damaged by fire, or by water due to mishandling. The menu cards containing the list of items are also in a hard paper. So, if the manager wants to update the menu lists or the price of items, then it would require him to change the menu details in each and every menu cards present in the restaurant. 
It is quite evidently cumbersome task to change details in every card. So, eventually it leads to replacement of all the menu cards with the new one, which would lead to a great wastage of papers. Many times menu cards might require very minute changes for which it is not at all convenient to replace all the menu cards with the new ones. In simple words, these paper based menu cards lacks dynamicity. It even becomes a very difficult task for a restaurant manager to analyze the order lists of customers to determine the best-selling food items and the peak hour of restaurants to increase its market. There is also no proper tracking system in this pen and paper based ordering process. Waiter has to constantly check with the chefs to determine which orders are ready. They also need to check frequently which tables are empty, which are reserved and which tables need clearance. All these things require a large manpower that is costly even from restaurants point of view. It comes up with wastage of time, money and paper. So, there is a need among restaurants to change this system in order to stand out in this competitive food industry. 

B. Personal Digital Assistant (PDAs) 
There were many improvements done in the food-ordering process, one among them was PDA based system. PDAs are small handheld devices that make them easy to handle and portable. PDA based system is a wireless system. Some examples of PDA based system are WOS, I-Menu, and FIWOS. These wireless food-ordering systems enable customers or waiters to key in order using mobile devices, called, Personal Digital Assistant. When a customer or waiter completes the ordering process, the order details are sent to the server from the PDA. The waiters collect the PDAs used by a customer so that other customers can use it.These PDA based system may be a better approach towards automated food-ordering system over traditional pen and paper based system but it has many limitations too. PDA based system may increase the restaurant expenditures during the peak hours, as during peak hours the restaurant require large numbers of PDAs to serve every customer. There is not any way to get a real time feedback from the customers, in PDA based system. Technical details are required for the restaurant manager to update or modify the menu list. The User Interface of the PDA based system is not so attractive. It consists of only textual information. There are no images of the food items. So, it contains unattractive and uninformative details about the menu list. 

C.KIOSK based system 
KIOSK is a screen that contains the complete menu list. It is more advanced than previous two systems. It not only contains the textual information about the menu items but also contains images of every food-item along with their prices. KIOSK screen in installed at the restaurants mostly near cash counter. Whenever, a customer visits a restaurant he has to check the menu list at the KIOSK screen. He browses through the list and selects his items and completes the order. Payment is also done through the KIOSK screen by a suitable payment option. He then receives his order number. His ordered list along with the order number is sent to the chef in kitchen. After the order is ready the order number is announced or displayed on the screen at the cash counter. The customer has to come and receive his order. This system, although, is more advanced than the previous two systems has limitations too. If the restaurant is in its peak hours and is crowded with many customers then this system ends up in forming a big queue for the KIOSK. It leads to frustrations and inconvenience among the customers. Eventually, it becomes even a worse option than other two systems in that case. This is the greatest disadvantage of this system. However, this system proves to be good with restaurants having moderate number customers or the restaurants that do quick orders such as, fast food. 

D.Computer based food ordering 
This system is similar to KIOSK technology system. In this system, when customer enters the restaurant, he has to orally tell the orders to the cashier and make the payment. The cashier makes a bill in his name with order number written in the bill. After placing the order the customer has to wait in his table. The cashier sends the order to the chef in the kitchen. When the order is completed, the waiter comes and serves the order to the customer at his table. This system being almost similar to the KIOSK based system has same limitations as that. If a large number of customers come in the restaurant then it would become difficult for the cashier to take the orders from each customer and send to the kitchen.