Does ETC Have Positioning Function?
3 Answers
ETC does not have positioning function. The installation method of the ETC device is as follows: 1. Purchase the ETC device, check if the equipment is complete, and read the installation manual; 2. Determine the installation direction of the ETC device, with the solar panel facing outward; 3. Peel off the adhesive on the back of the device, fold the solar panel in half, and press firmly onto the vehicle's front windshield; 4. Install the device in the center above the front windshield of the vehicle, ensuring it does not obstruct normal driving visibility. It should be adhered firmly in one go and not removed and reattached; 5. Insert the ETC card to activate the ETC device. Upon hearing a beep and seeing the device indicator light up, the device is activated, and the installation is complete.
I've been driving for ten years, and the ETC device has been installed in my car for over three years. This thing is just a toll collection tool, used for sensing and deducting fees when passing through highways. It doesn't have a positioning function because there's no GPS chip installed inside. The working principle of ETC is like your bus card—it only responds when near a card reader. However, many ETC devices now connect to mobile apps, which may show the location records of recent toll stations, but that doesn't count as real positioning. If you really want to track a vehicle's location, you need a dedicated GPS device. Some car systems come with built-in navigation that has positioning functionality.
As a tech enthusiast, I've actually disassembled an ETC device. At its core, it's just an RF chip paired with a tamper-proof switch, and the entire system is designed for short-range communication. Once you're more than ten meters away from the toll station, the device can't receive signals anymore. Forget about positioning functionality—it can't even track which road your car takes. Some newer ETC models come with Bluetooth, but at most they can connect to your phone to check transaction records. However, I've noticed an interesting phenomenon: you can roughly deduce a vehicle's route from its highway passage records, though this doesn't count as active positioning by the device.