Thesis Title: Automatic Door Locking System through SMS with Unlocking System when Power Shuts Down
Description:
There will be a two (2) locks on the door: an automatic lock which uses SMS to lock and unlock itself and; a manual/ ordinary lock -which is normally a door knob- which uses a key.
This is how it MUST work: the door lock will locked or unlocked itself through SMS. So bale I'll have a GSM Module for the SMS..
The Problem:
1.) anu po b mgndang ikabit or gwin? I mean, kung ggwa ako ng sarili kong lock, anu mgndang gmitin? Servo Motor, Pneumatic, Magnet or anu kya mgndang gmitin bukod sa mga nbanggit ko?
2.) need kasi pag nagbrown-out dpat mag-unlock ung matic.. its ok lang but, the manual/door knob must be automatically locked,, so dapat ung door knob nkakabit din sa servo or whatever na pdeng mgamit.. pnu ko ikokonek ung matic dun sa manual? dpat xe once the power shuts down, the matic will unlocked itself then the manual will locked itself.
Eto po kasi mga naisip ko:
1.) una kong naisip i'll use magnet dun sa may hole, ung pasukan ng lock bar.. pag maglolock, the GSM Moudle will send a signal to a circuit which will give the magnet a current para mamagnetized ung lock bar.. Kaso prob dun pnu ung unlock? d maka2balik ung lock bar dun sa lock db?
2.) next ko naisip is kung ung magnet nasa lock mismo.. magmamagnetized ung magnet once it is unlock.. sa paglock, mdedemagnetized ung magnet then a spring will push the bar toward to the hole.. ang prob ko nmn dun is pnu ko ibblik sa pag-unlock? bka d kyang ibalik ng magnet kasi sa spring.. tska pag nagbrown-out, mdedemagnetized ung magnet xe wlangpower and therefore maglolock db...
3.) ung first 2 na naisip ko, pnu ko ikokonek un sa manual? haaay..
4.) sa Servo Motor, bka un na ung gwin kong lock mismo.. iikot lang nmn xa db so pde nyang mapush and pull un glock bar.. the question is, KAYA b ng servo mgpush and pull? bka xe db mejo matigas ung lock bar..
5.) pneumatic, dunno how it works but some says it's usually worked with a compressor... d kya mgastos un? dunno din pnu ko kakabit un sa matic and manual..
Ang gusto ko po kasi ung un nga ung maglolock and unlock ung matic by SMS.. pag nagkabrown-out, the matic will unlock itself then thedoor knob will locked itself... so kung maglolock ung manual, dpat my charge ung circuit na un para malock nya ung manual... and also, i don't know xe pnu ko din ikokonek ung matic dun sa manual..
Ok lng ung pagbalik ng power nkalock pa rin ung manual and/or d na bmalik sa lock ung matic..
Need po ng mga suggestions pnu ko po to papaganahin...
Ayan po.. need help po... Tnx po ng mdme...
-Terry Vasquez
BSECE 5th Yr. Student, Pamantasan ng Lungsod ng Maynila
