Cost

App USD10800 Server USD18000
App+Server USD28000

Preface

The customization of App and server is mainly to facilitate the management of watch data, not limited to Bluetooth watches or 4G
watches. At the same time, we also support creating a model you want. If you are interested, please bring the project background
and product function requirements to consult us.

App fee (non-fixed)

Including customizing App according to the buyer's needs, including uploading to Google Play and App Store.

Server fee (non-fixed)

Including the server that the buyer wants, such as: AWX, Alibaba Cloud, Tencent Cloud, Huawei Cloud, etc. We are mainly
responsible for building the server architecture, integrating the watch and App into the server, and ensuring the normal operation
of the server.

We will provide all source code and protocols

Platform Architecture

The server can use AWS (Alibaba Cloud, Huawei Cloud, Tencent Cloud), etc. The communication between the server and the watch uses
the netty framework. By setting the communication protocol between the server and the mobile phone, the java nio communication
method is used to maintain a long connection with the bracelet, saving the time spent on each socket connection. This method can
support tens of thousands of concurrent connections; The communication between the server and the APP uses
SpringMVC+Spring+SpringJDBCTemplate to receive, query, calculate, and store data. The server structure uses restful to provide
json data communication; Push uses Amazon

Store data

redis, mysql

Core technical points

a.Socket

Socket is also called "socket". Applications usually send requests to the network or respond to network requests through
"socket".

b.Netty

Netty is a Java open source framework provided by JBOSS. Netty provides an asynchronous, event-driven network application
framework and tools to quickly develop high-performance, high-reliability network servers and client programs, supporting tens of
thousands of concurrent requests per second.

c.Positioning

Use base station wifi to resolve longitude and latitude. d.Nginx: Nginx is an HTTP server invented by Russians. It is currently
the mainstream server. As a load balancing server, it has great performance and supports up to tens of thousands of concurrent
connections.

d.Nginx

Nginx is an HTTP server invented by Russians. It is currently the mainstream server. As a load balancing server, it has great
performance and supports up to tens of thousands of concurrent connections.

e.MySQL

MySQL is a relational database management system developed by MySQL AB of Sweden and is a product of Oracle. MySQL is one of the
most popular relational database management systems. In terms of WEB applications, MySQL is one of the best RDBMS (Relational
Database Management System) application software.

f.Redis

Redis is an open source (BSD licensed), in-memory data structure storage system that can be used as a database, cache, and message
middleware.

Software Architecture

The standard MVC design pattern on the server side divides the entire system into three layers: View layer, Controller layer, and
Service layer.

Server technology solution

Java language + Spring MVC + Spring + SpringJDBCTemplate framework is used, and the database is MySQL community version, which is
a new web system architecture solution with fast response time and high performance. The web container uses the standard
mainstream tomcat server, version 9.x.

Socket interface

The socket interface uses the netty framework, and uses asynchronous IO to provide socket services, increasing the concurrent
processing capacity of the server.

Technical Points

1. The overall data interaction communication mode uses the standard http+json+custom format protocol mode. 2. The overall
framework uses the standard MVC architecture style.
3. The interface uses a simpler and more hierarchical restful format.
4. The sockets are all processed by Nio in asynchronous non-blocking mode, using the netty framework to ensure high performance.
5. The location information uses Google's enterprise-oriented services, using three positioning methods based on GPS, base
stations, and WIFI, which is more accurate.(Or other positioning that customers want)