From the implementation of the treadmill, we may do some improvement compared to the traditional treadmill such as user interface and the play of the audio sound and the connection to the internet. It’s the advantage of using embedded system as the electric control system, but there are still some functions that haven’t implement yet. Such as saving the files of some parameters in the memory, and the interface of Emergency Stop; in the traditional treadmill, the interface of Emergency Stop is done by hardware. But in our treadmill, we implement it by the software emulation. It’s not a safety way by doing so. And the measurement of the Heart Rate is another function that we should implement.
In the other aspect, the use of the embedded OS, WinCE.NET has some topics for discussion: The embedded system is used for the specified purpose, and the hardware is differ from each other according to the manufacturer, so the driver for the hardware may not open to the public, and it may increases the cost.
Building the WinCE.NET OS needs the driver. We should take this into consideration.
In the aspect of playing music, the format we use now is the PCM data, and it is uncompressed format. It takes much memory space, and it is improper to the embedded system; it can be improved by using the compressed format. In the aspect of drawing the playground and incline graphic, we use the basic geometric graph to form the drawing; it’s better than the traditional LED display but still can be improving.
Reference
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Communications using HttpWebRequest and Custom ASP.NET Providers”, MSDN library, 2003.
[15] Seth Demsey, ” Recording and Playing Sound with the Waveform Audio Interface”, MSDN library, 2004.
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List of Figures
Figure 2.1 PCM-9575
Figure 2.2 The equivalent circuit of single phase induction motor
r
R
Figure 2.3 Mechanism of the treadmill
Figure 3.1 Direct Connection
Figure 3.2 Connect type
Figure 3.3 Picture of ActiveSync
PC (Develop AP)A i S PCM 9575 U
EI 8001
T h
Server (IIS)
Motor
Speaker
Figure 4.1 The whole architecture of the treadmill
Main
Basic Mode Training Mode
SET
Set Time Set Distance Set Calories COURSE
Walking Course Running Course Interval Course PROGRAM
CARDIO INTERVAL FAT BURN ENDURANCE RACE
Music Mode Data Setting
Figure 4.2 The program flow of the treadmill
Figure 4.3 Main (function)
Figure 4.4 DataSetting (function)
Figure 4.5 Music Mode (function)
Figure 4.6 Basic Mode (function)
Figure 4.7 Set Time (function)
Figure 4.8 Walking Course (function)
Figure 4.9 Cardio (function)
Figure 4.10 Race (function)
PCM Data
Fig 4.11 The wave file format
Lit of Tables
Table 2.1 The comparison of development board
CPU Embedded VIA low power Eden processor, On-die 128 KB L1 cache memory, Eden-667 2ndCache
Memory
64 KB on the Eden processor System
Chipset
VT8606, VT82C686B, 133 MHz FSB BIOS AWARD 256 kbit Flash BIOS System
Memory
SDRAM 168-pin DIMM x 1, Max: 512 MB PC133 DIMM for all models,
SSD CompactFlash card Type I/II and DiskOnChip Expansion
Interface
PC/104-Plus
Chipset VIA Twister chip with Integrated S3 Savage4 2D/3D/Video Accelerator
Memory Size 8/16/32 MB frame buffer using system memory
Resolution 1024 x 768
LCD Interface 4x AGP VGA/LCD interface
Table 2.2 The specification of PCM-9575
Development Tool Platform API
Embedded Visual C++
Table 3.1 Comparison of the development tool
logical address Function
FA00h Communication cmd. valid
FA01h Frequency cmd.
FE01h Drive status
0002h Output current
0003h Rotation frequency
0006h Acceleration time
0007h Deceleration time
0008h Lower limit frequency
0009h Upper limit frequency
0025h Control mode
0028h Base frequency
Table 4.1 The important register addresses of Inverter EI-8001
Bit Function 0 1
15 FA00 valid invalid valid
14 FA01 valid invalid valid
13 Reset trip OFF reset
12 Emergency stop OFF Fast stop
11 Free run command OFF Free run
10 Run/Stop Stop Run
9 Forward/Reverse Forward Reverse
8 Jog operation Off Jog
7 DC braking Off DC braking
Table 4.2 The line command register of FA00
Level 1 2 3 4 5 6 7 8 9 10
Time (min) 1 1 1 1 1 1 1 1 1 1
Incline(%) Easy 0 2 6 1 4 8 3 0 5 9
Incline(%) Normal 0 4 10 1 10 4 8 0 3 10
Incline(%) Pro. 3 10 4 0 8 15 7 0 5 12
Table 4.3 Walking course
Section 1 2 3 4 5 6 7 8 9 10
Section WARM
Section WARM UP
1 2 3 4 5 6 7 8 9 10 11 COOL
DOWN Speed
(km/hr)
WARM UP
3.5 4.2 5.0 4.2 6.0 5.0 6.0 4.2 5.0 4.2 3.5 COOL DOWN
Time (min) 3 3 2 3 2 3 4 3 2 3 2 3 2
Easy Incline (%)
0 4 2 6 2 9 2 9 2 6 2 4 0 Normal
Incline(%)
0 5 3 10 3 11 3 11 3 10 3 5 0
Pro.
Incline (%)
0 7 4 10 4 12 4 12 4 10 4 7 0
Table 4.9 Endurance 35 min