home alarm

[homeauto]

hello, this is my first post here. i am a student and new to labview. last few days i went through lots of basic tutorial. my plane is to make a full home automation system (not for my college project) with heating control and lights and buglar alarm. but i will start with alarm first. i break down alarm part in 2 part(hardware and software). i have few question about them for you guys who know this staff very well. i am using labview 2010.

hardware:

1. i am planning to use a DAQ system with digital i/o board preffer one with usb. which one will be better option?

2. normally close pir sensor and door contract. how to sense the pir(1/0 logic)?

3. user interface like pda/embedded cpu with touch screen? which one would be best and cheapest option?

software:

1. what is the best practice to scan an i/o port(for pir and door contact)?

2. what would be the best way to use a passward to disalarm and alarm and edit the system like zone set to watch?

here is my front panel........ and thanks in advance, i will come back with more question.

[ajmartin]

Hi,

 I would start with the basics first. Try to do the most simple things. It looks like you are on a tight budget, and considering your timing requirements are very simple, I think the USB-6008 would work well. Forget about the advanced User Interface like the touch screen you mentioned, for now.

Good for you for taking several tutorials! There are many FREE on the NI site. Look at the tutorials for simulating a DAQ device (6008 or other), if you want to proceed before purchasing one. And just start very simple,  make a VI that would look for a DI/O signal to go high or low on the DAQ and respond by turning on an LED on the front Panel.

Can you attach  the VI of the front panel and block diagram of the image you atached?

Alan

[homeauto]

where can i find simulating a DAQ device 6008? can you give me a link? i would like to use this simulation vi to use with my block till i buy the hardware.

here is the vi, dont mind the block part.

[homeauto]

cant find the usb 6008 or 6009 in device and interface section for simulation, which one will be the nearest of them?

[ajmartin]

Sorry, I thought it was one of the simulated USB devices. For an affordable DAQ especially for students and people experimenting with low speed signals  the 6008 is the least expensive DAQ in the NI line. Look at the specs and make sure the limitations won't hold you back, the biggest draw backs are the 150Hz limit on the Analog out and the lack of hardware timing. NI ships every thing FedEx 2 day, so you could have the device in hand by Wednesday if you order soon!

Alan