I didn't want to post this to the wireless/everything else forum for the reason that will soon be apparent so bear with me.
We have an early model toll transponder that takes batteries rather then the current crop of passive RFID units. This one will beep and the led will show positive confirmation of interrogation when passing a toll point. It will also signal for low batteries. This made before the now common adhesive type that prevents you from moving it from vehicle to vehicle and uses suction cups.
Over the years we've had it, it's remained silent except for two toll roads we seldom use. Now every so often we get a green light and beep driving around. Checking the website account, there is no valid entry for a toll deduction from the balance that day. Only when we use the two expressways.
So the question I'm asking is are they starting to use these devices as trackers or use them to determine traffic pattern statistics? This would be an important issue as most all the ones on the road are totally passive and you have no idea if they've been interrogated or not. Only the few very early adopters purchased the active units, so most people would have no knowledge of being interrogated.
The unique id is specific now to the VIN/License Plate/Owner/and make of vehicle. The reasoning is if you have an account on file and the transponder doesn't work, the photo can be matched up to a valid account and normal deduction occur rather then paying a mail fee.
The other possiblility is that they are using these beyond the scope of their intended use to gather user habits and create databases of users travels or some other reason.
It's only happened a few times, so I doubt it's falsing after all these years or any major data collection is going on....yet.
Since most all of these devices in use today are the newer passive ones, it might be assumed that few older ones are around and this can be a new means of tracking vehicles. Especially now that the new ones are designed with a permanant adhesive for use in only one vehicle and will be destroyed if you try to remove one.
I've never heard of any discussion about this and it definitely would be related to direction finding and vehicle location.
We have an early model toll transponder that takes batteries rather then the current crop of passive RFID units. This one will beep and the led will show positive confirmation of interrogation when passing a toll point. It will also signal for low batteries. This made before the now common adhesive type that prevents you from moving it from vehicle to vehicle and uses suction cups.
Over the years we've had it, it's remained silent except for two toll roads we seldom use. Now every so often we get a green light and beep driving around. Checking the website account, there is no valid entry for a toll deduction from the balance that day. Only when we use the two expressways.
So the question I'm asking is are they starting to use these devices as trackers or use them to determine traffic pattern statistics? This would be an important issue as most all the ones on the road are totally passive and you have no idea if they've been interrogated or not. Only the few very early adopters purchased the active units, so most people would have no knowledge of being interrogated.
The unique id is specific now to the VIN/License Plate/Owner/and make of vehicle. The reasoning is if you have an account on file and the transponder doesn't work, the photo can be matched up to a valid account and normal deduction occur rather then paying a mail fee.
The other possiblility is that they are using these beyond the scope of their intended use to gather user habits and create databases of users travels or some other reason.
It's only happened a few times, so I doubt it's falsing after all these years or any major data collection is going on....yet.
Since most all of these devices in use today are the newer passive ones, it might be assumed that few older ones are around and this can be a new means of tracking vehicles. Especially now that the new ones are designed with a permanant adhesive for use in only one vehicle and will be destroyed if you try to remove one.
I've never heard of any discussion about this and it definitely would be related to direction finding and vehicle location.
Mobile Toll Transponders
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