Smartphone-based Desktop Platform

Introduction

The primary functions of any graphical user interface are

selection, timed-execution, text-input and content description.

Content description using a GUI

is a good way to validate its efficiency.

We are plan to launch an app

for specifying the design of a bicycle-trailer

on a specific smartphone-based desktop platform.

The platform uses:

an iPhone 15 Pro or Samsung Galaxy S25

an HP E14 G4 FHD screen

an Apple keyboard with Numeric Keypad

a specially designed cradle.

This app will enable a designer

to precisely specify a bicycle trailer design

(including a specification of the parts in the design,

how they are connected

and a visualization of the complete design).

The primary function of this app

is a (visual) description of

3D objects

or processes relating to 3D objects.

Hence it's a good way to validate

the efficiency of a desktop UI.

The A17 Pro SOC (iPhone 15 Pro)

Apple's A17 pro SOC contains a 3.78 GHz ARM ISA based microprocessor, a 6-core graphics engine and a 6.4GHz DDR4 memory interface. It's a well designed low power SOC that can easily be used in a desktop design environment. It can drive a 4k screen at 30Hz and has enough processing power for graphics intensive applications that have high computational requirement.

The SnapDragon Elite 8 SOC (Galaxy S25)

Qualcomms's SnapDragon Elite * SOC

The HP E14 G4 screen

This is a 14" FHD portable screen.

It has a small built-in battery and a well designed hinge that folds open to a 78 deg screen-angle.

2 USB-C input ports for charging or display data.

We use a small Xiaomi 4900 mAh Powerbank to keep the screen charged and an AirPlay receiver dongle to connect to it wirelessly.

The Apple Magic Keyboard with Numeric Keypad

This is a lightweight, compact form-factor keyboard.

It connects wirelessly over Bluetooth.

USB-C charging port.

It is the same width as

: and half the height of :

the HP G14 E4 screen.

The numeric keypad adds full size arrow keys

which are used as part of InterUnit UI design conventions

Our Custom Smartphone Cradle

With over 10 years of experience in the design industry, our team has the expertise and knowledge to take on any design challenge. From fashion to technology, we have worked on a wide variety of projects and have developed a deep understanding of what it takes to create successful designs.

Appendix: Possible Bicycle-frame Modifications

Roadster bicycle with front carrier and seat with leafspring and coil-spring based suspension

We are prototyping the design of the trailer using a common roadster bicycle.

For a roadster bicycle, which has very generic and standardised design,

the handlebar, braking system and seat

can be redesigned to account for the additional load the bicycle will pull.

The frame of the bicycle is bolstered with 2 pairs of beams.

(Structural description goes here).

This strengthens the frame by increasing torsional rigidity

and also provides a mechanism to extend the trailer-frame forward.
The pulling beams are attached to the rear wheel spindle.

The steering beams are attached to the seat-post.

Note: The trailer itself can also be attached to

a specially designed pulling handle.

This is useful in a scenario where

a load is transported by road to a location

and then pulled off-road to its final location manually.

This makes the unloading process more efficient.

Appendix: Packaging and Transportation

Packaging

Package Dimensions

The package should fit in the trunk of a sub-compact car

Package Layout

Layout 1

{

2 16" wheels without ball-bearings

4 ball bearings + 4 ball-bearing sleeves

4 14" wheels without ball-bearings

6 ball bearings + 8 sleeves

2 outer sleeves for inter-wheelpair alignment

}

Layout 2

{

60 cm solid steel 16 mm diameter axle (0.8 kg)

100 cm hollow steel tube 20 mm diameter axle (1.0 kg)

2 long pulling beams ( 1.0 m, 0.7 kg each )

2 secondary axle steering beams ( 1.0 m, 0.7 kg each )

2 primary axle steering beams ( 1.4 m, 1 kg each )

}

Transportation

Shipping via courier

Package dimensions and weight should conform to courier guidelines

Carry-on luggage

Airline checked baggage rules

Car transportation

Package dimensions should fit in some reference sub-compact car.