Securant Inc SNSIV10 ユーザーズマニュアル

 

 

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Figure 2:  Securant System Illustration 
 

 

 
The SecurNozzle accelerometer is a two-axis +/- 2g/6g linear accelerometer directly interfaced to 
the SecurNozzle main controller.  The SecurNozzle accelerometer  is a motion sensor used to 
activate the system from its power-saving sleep mode.   

 
The SecurNozzle RF-ID reader is a standard 125kHz reader with generic 100kHz to 150kHz 
range and communication range of 10cm which uses “Half duplex – full hand shake” transaction 
protocol.  When activated, the RF-ID reader searches for a Transponder (RF-ID passive tag). 
 

 
The SecurNozzle wireless communication ZigBee module is based on the Ember EM250 
chipset, a true single-chip 2.4 GHz IEEE 802.15.4 compliant RF transceiver with MAC support. 
The Zigbee module complies with worldwide regulations covered by EN 300 440 (Europe), 
CFR47 Part 15 (US) and ARIB STD-T-66 (Japan) and is designed for low-power, low-voltage 
wireless applications. 
 
The ZigBee module was developed for use in fuel station wireless network communication and 
data transfer. 
 

 
The FuelSafe system authorizes fueling transactions after reading a vehicle’s ID, transmitting the 
ID data to the pump, communicating through a SecurPC to Securant’s system and receiving 
authorization for the initiation of a fueling transaction.   
 
More specifically, the system operates as follows:   
 
A client vehicle arrives at a fuel station.