2015年11月29日星期日

forecast & imagine: Low-grade tabletpc in future

All of low-grade tablet pc, all of low-grade ARM or MIPS computer (ARM or MIPS all in one PC), most of the Set-Top Box (player), all of anyother low-grade embedded devices, will use public version of the PCB board designing scheme. And the shell use public mold scheme. So can greatly reduce the cost.

About the main chip of low-grade tabletpc, low-grade ARM or MIPS computer etc., please visit:
http://jmskl.blogspot.com/2013/12/chipset-for-low-grade-tabletpcset-top.html

All have these features:
1 The CPU some of will be Single core, some of will be Dual core, some of will be more higher performance CPU. The instruction set of the CPU, some of will be ARM, some of will be MIPS.
2 For Single core CPU edition have 768MB RAM, Dual core CPU edition have 1GB RAM. More higher performance configuration tabletpc, have 1.5GB or 2GB RAM. All will be DDR3 RAM.
3 Have 4GB eMMC at least.
4 About the LCD screen:
Some of use 7" or 8" widescreen, the resolution will be 800*480, some of the resolution will be 1024*600.
Some of use 7" or 8" 4:3 screen, the resolution will be 800*600, some of the resolution will be 1024*768.
Some of (Not too many) will use IPS LCD screen.
Nearly all of the LCD screen will use LVDS interface.
5 Capacitive touch screen. Support multi-touch.
6 WIFI function, all support IEEE802.11b/g/n (at least support 150Mbps max)
7 All have gravity sensor.
8 All of low-grade tabletpc will not have bluetooth function.
9 For Single core CPU tabletpc, most of will not have camera. For Dual core CPU tabletpc, some of have a camera, some of not have. More higher performance configuration tabletpc, both have a back camera and a front camera.
10 For more higher performance configuration tabletpc, most of will integrate GPS. But for Single core and Dual core edition, nearly no tabletpc will integrate GPS.

All of the low-grade tabletpc, on the main PCB board have these pins for some functions, as: Power button,
Reset button, Vol- button, VOL+ button, Back button, Home button, Menu button, Camera, Loudspeaker, MIC, LVDS or TTL pins for LCD Screen, for capacitive touch screen pins, for Lithium ion Battery pins
Some of the PCB board, the buttons have been welded on the PCB board.

Always the Lithium ion Battery has been welded by wire into the mainboard. Some of the have a battery compartment in the back shell of the talbetpc, support BL5C or other kinds of universal Lithium ion Battery. All of Lithium ion Battery's capacity will be greater than or equal to 3500mAh.

Ports on low-grade tabletpc:
1 All have a standard 30pin docking station (port expansion)(Can expand two USB2.0 port, a VGA port, a mini Displayport).
2 All have a micro USB port, for charge, and for data transmission to PC (can be used for: brush fireware, USB debug mode on Android, USB disk mode, etc.). The micro USB port also can be used for USB host mode, when use it as USB host mode ,it can provide DC+5V electric power for USB device.
3 All have a 3.5mm audio port ,for 2 channel audio output (for earphone or other speaker) and microphone (CTIA standard)
4 All have a micro microphone
5 All have a TF card slot.
6 Some of low-grade tabletpc have a very litte loudspeaker (one channel only), some of not have.

Buttons:
All of the tabletpc,have a "power" button, a "reset" button (pinhole button), a "back" button, a "menu" button, a pair "vol+" and "vol-" button
All of the "reset" button will be a pinhole button.
Some of tabletpc, in the front shell, the "back" button, "home" button, and "menu" button are all touch button, and when press any touch button, indicator lamps in the touch button will be lighted

Operating system:
In future, all of low-grade tabletpc and set-top-box, will be pre-installed Android (Android 4.4.4 or newer version) and a Linux release edition (such as: Ubuntu etc.) on the eMMC of the equipment.
The pre-installed Android and the Linux release edition will be coexisted on the eMMC of the equipment.
When user turn on the equipment, can choose which Android or the Linux release edition (or anyother operating system, if has been installed) want to be entered.
All of low-grade tabletpc and set-top-box, the pre-installed Android operating system on the equipment, will have been got "root".
Most of will be pre-installed "Recovery" system on the eMMC.

About the drivers of capacitive touch screen and LCD screen:
All of the low-grade tabletpc's manufacturer, will provide the capacitive touch screen's driver, and the LCD screen's driver (LCD screen config file). When user want to install anyother Linux operating system to the tabletpc, user can integrate or install the drivers to the operating system.

The low-grade tabletpc will not have any other accessories, such as: USB cable, USB charger, earphone, packing box, instructions etc. So can reduce the cost.

Many manufacturers will sell the components of a low-grade tabletpc, these components include: LCD screen, capacitive touch screen, cables for LCD screen and capacitive touch screen, motherboard, the back shell, the frame shell, a Lithium ion battery. So user can assemble a low-grade tabletpc easy by theirself. And manufacturers can save assembly costs.

In the near future, the cost of the low-grade tabletpc, at least will be nearly about US$27. Although the cost will be very low, but the quality of the product will be very good.
When user will use the tabletpc, it will run very fluent and fast.
The sales volume of the low-grade tabletpc, will be very high in many developed countries.
In all of large cities and many middle cities of developed countries, will prohibit to sell the low-grade tabletpc.
In United Kingdom, Germany, Singapore etc., will prohibit to sell the low-grade tabletpc.
In USA, Australia, New Zealand, the low-grade tabletpc will be hard to buy.
In all of less developed countries, the low-grade tabletpc will not have sell.

If the tabletpc cost less than about US$140,usually not have warranty.
But the quality of the product will be still very good.

schematic diagram:
the public mold scheme of low-grade tabletpc


Schematic diagram: the right side of the tabletpc's shell


* But some of the reset button in the right side of the shell

A low-grade tabletpc running Ubuntu or other Linux release edition
A low-grade tabletpc connect a universal docking station to expand 2* USB2.0 port , a VGA port, and a mini Displayport
About the universal docking station, please visit: http://jmskl.blogspot.com/2013/12/i-invent-30pin-docking-station-for-any.html


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