초록 ▼

A vehicle alarm system includes a receiver transmitter subsystem, a G.P.S. subsystem for locating a position and a control CPU. The CPU performs a log and locate function in which it logs a first position of the vehicle once during an armed state of an alarm system and then, in response to the passa

A vehicle alarm system includes a receiver transmitter subsystem, a G.P.S. subsystem for locating a position and a control CPU. The CPU performs a log and locate function in which it logs a first position of the vehicle once during an armed state of an alarm system and then, in response to the passage of a certain time interval, locates the position again. If the position of the vehicle has changed during the alarm of the alarm system, the vehicle's position is transmitted via the receiver/transmitter subsystem to a security response center that can then receive tracking information and locate the vehicle.

대표청구항 ▼

[ What is claimed is:] [1.] A security system for a vehicle, comprising:a vehicle subsystem including an on-board receiver/transmitter capable of receiving data encoding messages and control commands via a two-way paging system;a CPU including means for implementing control functions according to sa

[ What is claimed is:] [1.] A security system for a vehicle, comprising:a vehicle subsystem including an on-board receiver/transmitter capable of receiving data encoding messages and control commands via a two-way paging system;a CPU including means for implementing control functions according to said control commands or alternatively outputting messages;said CPU including a status register;a G.P.S, subsystem for indicating a position of said vehicle when said security system is armed prior to sensing alarm situation;a non-volatile memory containing a program executable by said CPU for logging said position as determined by said G.P.S. subsystem and comparing said logged location of said vehicle with a current location of said vehicle as determined by said G.P.S subsystem at predetermined time intervals; andsaid CPU having means for updating said status register to indicate said alarm situation based on said comparing; andsaid G.P.S. subsystem transmitting said current position of said vehicle only in response to one of said alarm situation and a user command to indicate said position, whereby an onboard power source powering said security system is conserved.