- Fri Apr 08, 2005 7:02 am
#4078
I'm a freshmen college student and currently working at a mom & pop grocery store. We are a smaller store, but get a good amount of buisness. However we don't always have an employee at our cash register. We are often in the back and sometimes don't even know someone is up front. My boss hates it when the customer has to wait, so I thought up this idea.
Basically I would have an IR beam up front by the register that when broken would flip a relay. That relay would send out a signal on the "Simple-RF Link" transmitter from spark fun. All of the employess in the store will have a little pager clipped to their belts that will vibrate when the transmitter is transmitting. Once an employee is behind the cash register, they will trip another IR beam that will flip a relay and turn the transmitter back off.
That is the basic idea. It still needs some work though. For instance, if the employee moves around up front, or goes for a price check, etc. the IR beam will be in contact again and everyone's pagers will vibrate. Annoying.
I am currently only familiar with Logic gates, counters, and flip flops. I've been thinking of different ways to get rid of that problem.
Anyway, if anyone has some suggestions on the problem, or perhaps a better way to do the entire thing, let me know.
Thanks
Basically I would have an IR beam up front by the register that when broken would flip a relay. That relay would send out a signal on the "Simple-RF Link" transmitter from spark fun. All of the employess in the store will have a little pager clipped to their belts that will vibrate when the transmitter is transmitting. Once an employee is behind the cash register, they will trip another IR beam that will flip a relay and turn the transmitter back off.
That is the basic idea. It still needs some work though. For instance, if the employee moves around up front, or goes for a price check, etc. the IR beam will be in contact again and everyone's pagers will vibrate. Annoying.
I am currently only familiar with Logic gates, counters, and flip flops. I've been thinking of different ways to get rid of that problem.
Anyway, if anyone has some suggestions on the problem, or perhaps a better way to do the entire thing, let me know.
Thanks