Detecting i. Phone and Android Smartphones by Wi. Fi and Bluetooth . Read more in the Smartphone detection chapter of the Meshlium Technical Guide. Meshlium Scanner allows to detect i. Phone and. Android devices and in general any device which works with. Wi. Fi or Bluetooth interfaces. These devices can be detected without the need of being connected to an.
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Access Point, enabling the detection of any smartphone. Meshlium. The idea is to be able to measure the amount of people and cars which are. Users have to do nothing to be detected as the Wi. Fi and Bluetooth radios integrated in their smartphones (mobile, hands- free and cell phones) periodically send a . Users not connected to an AP will be showed as . With this parameter we can differentiate among pedestrians and vehicles. The coverage areas may be modified by changing the power transmission of the radio interfaces allowing the creation of different scanning zones from a few meters (in order to study an specific point) to dozens of meters (to study the whole street or even the entire floor of a shopping mall).
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Example of information monitored by the Wi. Fi Scanner: DB IDTimestamp. MACAPRSSIVendor. 53. C4: 2. C: 0. 3: 9. E: 4. A6. 9Apple.
D8: 2. A: 7. E: 1. E: 6. 3libelium. Smooth vehicle flows reduce journey times. Similarly, the efficient flow of pedestrians. Monitoring traffic - whether road. Applications for Vehicle Traffic Detection: Monitor in real time the number of vehicles passing for a certain point in highways and roads. Detect average time of vehicle stance for traffic congestion prevention. Monitor average speed of vehicles in highways and roads.
Provide travel times on alternate routes when congestion is detected. The monitoring system can also be used to calculate the average speed of the vehicles which transit over a roadway by taking the time mark at two different points. Do the users need to have an specific app installed or interact somehow to be detected? No, the scan is performed silently, Meshlium just detects the . Users just need to have the Wi.
Fi radio ON or the Bluetooth radio ON with the visible option activated. How do we differentiate if the Bluetooth device detected is a car’s hands- free or an smartphone? In the scanning process each Bluetooth device gives its “Class of Device” (Co. D) attribute which allows to identify the type of service it gives.
We can differentiate easily the Co. D’s generated by the car’s handsfree from the people’s phone ones. How do I control the inquiry area? In the Bluetooth inquiry there are seven different power levels which go from - 2. Bm to 3d. Bm in order to set different coverage zones from 1.
In both Wi. Fi and Bluetooth radios these zones can also be increased or decreased by using a different antenna for the module as it counts with an standard N- Male connector. The default antenna which comes with the scanning modules is an omnidirectional antenna with a gain of 5 d. Bi. Ask our Sales Dep. RSSI values usually go from - 4. Bm (nearest nodes) to - 9. Bm (farthest ones).
In the tests performed devices at a distance of 1. Bm as average, while the ones situated at 5. Bm. Note: calculating the distance using RSSI depends on many factors such as the type of phone and how the user is taking the smartphone (in the pocket, in the hand, in a bagpack, etc). What about privacy? The anonymous nature of this technique is due to the use of MAC addresses as identifiers. MAC addresses are not associated with any specific user account or mobile phone number not even to any specific vehicle. Additionally, the “inquiry mode” (visibility) can be turned off so people have always chosen if their device will be detectable or not.
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