1. Faculty of technical education, King Mongut’s Institute of Technology North Bangkok 1518, Pibulsongkram Road, Bangsue, Bangkok 10800, Thailand Mr.Phadungsak Wongkaewkhio Security Guard Time Recorder by Radio Wave Code

2. Related Theory Design and Method - Design of Hardware - Design of Hardware - Design of Software - Design of SoftwareTesting - Recording Data Test - Recording Data Test - Reading Data Test - Reading Data Test - Timing’s Data Base Corrective - Timing’s Data Base CorrectiveSummary Headlines of Descriptions

3. 1. Introduction

4. Old. Security Guard Time Recorder by Mechanic key. Disadvantage - Heavy weight - Big size - Limited keys - Print on paper

5. 2. Theory The related theories are “Radio Frequency Identification” and “Microcontroller, MCS-51”. 2.1 Radio Frequency Identification 2.1.1. Electronics tag or transponder 2.1.2. Reader Electronics tag or transponderReader

6. 2. Theory Electronics tag or transponder Reader RFID/Proximit y Reader RFID/Proxi mity Card

7. 2. Theory 2.2 Microcontroller MCS-51

8. 2. Theory EEPROM

9. 2. Theory Real Time Clock

10. Block diagram of security guard time recorder by radio wave AT89C4051 EEPR OM Real Time Clock GP - 8 LC D RS- 232 Battery Charger Unit I2CI2C I2CI2C TTL Electronics tagReader 3. Principle of design

11. Figure 5 Circuit of security guard time recorder by radio wave code 3. Principle of design

12. Figure 6 Circuit board of security guard time recorder by radio wave code 3. Principle of design

13. Data display and setup date and time program. 3. Principle of design

14. 3.4 The quality of the security guard time recorder by radio wave code. Using the ware code without electrical contact. Collect over 5,000 data. Easy displayed on computer. Easy correct date time and delete data of the guard

15. New Security Guard Time Recorder by RFID Relate - weight - No keys limit - record to chip - sent data to computer disadvantage - Use Battery

16. 4. Result of study Positi on Time reader from clock Positio n 1 11:00 20/12/2006 Positio n 2 11:05 20/12/2006 Positio n 3 11:08 20/12/2006 Positio n 4 11:10 20/12/2006 Positio n 5 11:12 20/12/2006 Table1 shows the test result of security guard time Time reader from the device 11:00 20/12/2006 11:05 20/12/2006 11:08 20/12/2006 11:10 20/12/2006 11:12 20/12/2006

17. 5. Conclusion The security guard time recorder by radio wave code presented in this article is a device that can keep record of security guard start-working hours. It is easy to use without setting or changing anything. The recorded data can be transferred and keep in computer which can be viewed and checked later.

18. The end Question. Thank you