- #1
Neyolight
- 15
- 0
Hi all
Well I tried googling this but could not find a satisfactory answer , so here I am seeking help from all you experts![Big Grin :biggrin: :biggrin:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
So my question is regarding inductive loop sensors used on the road to give presence, vehicle classification etc information. These inductive loops are connected to a vehicle detector ( Relay - pulse or presence output). This relay ( all kind/ not specific to a brand) produce a digital output - it gives 1 when the vehicle is over the inductive loop and 0 for the rest of the time. This data is collected for let's say 30 sec and then transferred on to higher level to be used with SCATS or SCOOTS.
OK so what I've found is the digital output sometimes get stuck on/off ( regardless of vehicle going over loop or not), or the output is broken, also problems such as chattering and hanging on/off occurs. I can't seem to get to the core of these problems. Why do they occur? The inductive loop does its job by providing the magnetic profile of the vehicle as it goes over loop , then why is relay incapable of detecting it?
Any suggestions/ ideas are welcome :shy:
Thanks
Well I tried googling this but could not find a satisfactory answer , so here I am seeking help from all you experts
So my question is regarding inductive loop sensors used on the road to give presence, vehicle classification etc information. These inductive loops are connected to a vehicle detector ( Relay - pulse or presence output). This relay ( all kind/ not specific to a brand) produce a digital output - it gives 1 when the vehicle is over the inductive loop and 0 for the rest of the time. This data is collected for let's say 30 sec and then transferred on to higher level to be used with SCATS or SCOOTS.
OK so what I've found is the digital output sometimes get stuck on/off ( regardless of vehicle going over loop or not), or the output is broken, also problems such as chattering and hanging on/off occurs. I can't seem to get to the core of these problems. Why do they occur? The inductive loop does its job by providing the magnetic profile of the vehicle as it goes over loop , then why is relay incapable of detecting it?
Any suggestions/ ideas are welcome :shy:
Thanks