This preview shows page 159 - 162 out of 164 pages.
registration number, the vehicle class code and initiation code shall also be stored in the central database.3.2 Tag Initiation3.2.1Tag initiation will be a process carried out during tag commissioning or when the original owner suspects a cloning of the tag.
IRC:SP:73-2015 1523.2.2In the first case, the tag initiation software shall generate a random initiation code,write in the tag and store in the central database as mentioned in 4.1.2. Each time a tag is read by the transceiver for tag commissioning, a new initiation code will be generated, written on the Tag and stored in the central database along with other information.3.2.3In the second case, the tag initiation software shall generate a random initiation code and read tag ID, EPC code, vehicle registration number & vehicle class code from thetag mounted on the windshield. After due verification from the central database, the value ofinitiation code shall be updated on the tag as well as on the central database. Old initiation code and EPC code shall be marked for special handling for 'catching' the clone as and when the cloned tag comes into contact with transceivers at the toll gates.4Automatic Vehicle Identification at Toll Point4.1The communication sequence between the transceiver and tag shall conform to ISO1 8000-6C.4.2The transceiver shall retrieve the tag and EPC memory contents for those tags whose EPC code satisfies the mask stored in the transceiver for a matching entry. The EPCcode shall be used to index in to the data base from where the tag 10, vehicle registration number, the vehicle class code and the initiation code will be retrieved from the data base and verified against the corresponding values read from the tag.5 DATA FORMAT5.1 Schematic
IRC:SP:73-20151535.2Data downloaded from Central Database into Data Management System (TollPlaza Server) and each lane controller1)Tag ID (The Tag ID on the tagis only 8 bytes long but extra memory has been provided in the database)20 Bytes per vehicle5,000,000Written into the Database during tag commissioning2)EPC Code12 Bytes per vehicle5,000,000Written into the Database during tag commissioning3)Vehicle Registration number12 Bytes per vehicle5,000,000Written into the Database during tag commissioning4)Vehicle Class code2 Bytes per vehicle5,000,000Written into the Database during tag commissioning5)Initiation code4 Bytes per vehicle5,000,0003 bytes random No. & 1 Bytechecksum on Item Nos. 2 to 56)TagStatus(Valid,Exempt,Blacklisted)1 Byte per vehicle5,000,000-The above data is downloaded from the central Data base at User-set table time intervals varying between 15 min to 8 hours.5.3Toll Tariff tables down loaded from Central Data base in to Data Management System (Toll Plaza Server) and each lane controller5.3.1This table contains the approved toll tariff records for the toll plaza. The toll tariff can be based on vehicle class, lane type, time of day and shall be applicable from a given start date only. The table will contain all the toll tariff records- the old, current and future. Any discounting for local road users must be done by the clearing house. The table is likely to be