System and method for monitoring people and/or vehicles in urban environments
First Claim
1. A system for monitoring people and/or vehicles by using existing personal portable communication devices, the system comprising a central management computer;
- a plurality of acquiring devices for acquiring identifiers of transmitter devices by radio frequency in the 2.4 GHz band, which transmitter devices are the existing personal portable communication devices carried by people and/or vehicles primarily for use independent of the system, the acquiring devices being connected to the central management computer for sending the acquired identifiers of the transmitter devices in the form of tags for incorporation in a database; and
wherein each acquiring device comprises a short-range multi-format transducer in the 2.4 GHz band, at least one transmission and reception antenna, a processor for operation and encryption, configured for the extraction and encryption of the exclusive public part of the Medium Access Control (MAC) address of the transmitter devices as the identifier of the transmitter devices in an encrypted, unique tag, a long-range telecommunications device and an electrical power source; and
wherein the central management computer comprises the database of the encrypted, unique tags with acquisition times and geographical positions of the corresponding acquiring devices.
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Accused Products
Abstract
System which comprises a plurality of devices for acquiring (1) identifiers of transmitter devices (2) by means of radio frequency in the 2.4 GHz band, these acquisition devices (1) being connected to a central management computer (3) for sending the captured identifiers of the transmitter devices (2) in form of tags (32) in order to include the latter in a database (31). The method comprises the stages of: —acquiring the identifier of the transmitter devices (2) at particular points; —extracting the exclusive part; —encrypting said exclusive part in a tag (32); —sending the tag (32), acquisition point and time (33) to a database (31) of a central computer (3); —comparing the tag (32) and time (33) with the previously stored data in the database (31).
37 Citations
11 Claims
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1. A system for monitoring people and/or vehicles by using existing personal portable communication devices, the system comprising a central management computer;
- a plurality of acquiring devices for acquiring identifiers of transmitter devices by radio frequency in the 2.4 GHz band, which transmitter devices are the existing personal portable communication devices carried by people and/or vehicles primarily for use independent of the system, the acquiring devices being connected to the central management computer for sending the acquired identifiers of the transmitter devices in the form of tags for incorporation in a database; and
wherein each acquiring device comprises a short-range multi-format transducer in the 2.4 GHz band, at least one transmission and reception antenna, a processor for operation and encryption, configured for the extraction and encryption of the exclusive public part of the Medium Access Control (MAC) address of the transmitter devices as the identifier of the transmitter devices in an encrypted, unique tag, a long-range telecommunications device and an electrical power source; and
wherein the central management computer comprises the database of the encrypted, unique tags with acquisition times and geographical positions of the corresponding acquiring devices. - View Dependent Claims (2, 3, 4, 5, 6, 11)
- a plurality of acquiring devices for acquiring identifiers of transmitter devices by radio frequency in the 2.4 GHz band, which transmitter devices are the existing personal portable communication devices carried by people and/or vehicles primarily for use independent of the system, the acquiring devices being connected to the central management computer for sending the acquired identifiers of the transmitter devices in the form of tags for incorporation in a database; and
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7. A method for monitoring transmitter devices of people and/or vehicles by using existing personal portable communication devices, the method comprising the steps of using acquiring devices to acquire at certain acquisition points identifiers of the transmitter devices in the 2.4 GHz band that enter an operational range of the acquiring devices, wherein the transmitter devices are the existing personal portable communication devices carried by people and/or vehicles primarily for use independent of the method;
- extracting and encrypting the exclusive public part of the Medium Access Control (MAC) address of the transmitter devices as the identifier of the transmitter devices in an encrypted, unique tag;
sending the encrypted, unique tag, acquisition point identifier and acquisition time from the acquiring device to a central computer for inclusion and processing in a database;
comparing in the database the encrypted, unique tag and the acquisition time corresponding with previously stored data in order to determine whether the transmitter device has previously been in another acquisition point, thereby calculating conditions of the transmitter device'"'"'s motion and traffic based on time difference and distance between the two acquisition points. - View Dependent Claims (8, 9, 10)
- extracting and encrypting the exclusive public part of the Medium Access Control (MAC) address of the transmitter devices as the identifier of the transmitter devices in an encrypted, unique tag;
Specification