Automobile security system
First Claim
1. A remotely controllable vehicle security system comprising:
- a control unit installed in a vehicle for controlling operation of said security system;
a transmitting unit for remotely controlling said control unit;
a shock sensor connected to said control unit to provide an input into said control unit, said input conveying a magnitude of a shock detected by said shock sensor;
means in said control unit for automatically setting a shock level at a predetermined level, wherein when a shock is detected by said shock sensor which extends said predetermined shock level an alarm is activated by said control unit;
means for an operator to reset, via the transmitting unit, the shock level setting;
first means in said control unit for sensing an unauthorized entry into said vehicle comprising;
first means for sensing if a shock from said shock sensor exceeds a first predetermined threshold and issuing an alarm in response thereto;
second means for sensing if a shock from said shock sensor exceeds a second predetermined threshold, a level of said second predetermined threshold being less than a level of said first predetermined threshold;
second means in said control unit for sensing an unauthorized entry into said vehicle comprising;
first means for sensing a current which exceeds a first predetermined current threshold and issuing an alarm in response thereto;
second means for sensing a current which exceeds a second predetermined current threshold, said second predetermined current threshold being less than said first predetermined current threshold; and
means for issuing an alarm when both a current exceeding said second predetermined current threshold and a shock exceeding said second predetermined shock threshold are sensed.
0 Assignments
0 Petitions
Accused Products
Abstract
A microprocessor controlled automobile security system provides several features for enhanced operability. The system allows a receiving unit to learn a plurality of operating codes from a plurality of uniquely coded transmitters with which it can operate, thereby allowing each transmitting unit to be sold separately from each receiving unit. The system also allows for an operator to personally set the threshold at which a signal detected by a shock detector will result in an alarm being triggered. The system is further selectively operable in either a manual arming mode or a passive arming mode. The system also allows selective operation in either a full current sensing mode in which either a detected shock above an absolute threshold or a Δ threshold, or current flow above a predetermined level, will trigger an alarm system or operation in a shock and current integration mode in which if a detected current exceeding a predetermined threshold and a shock above an absolute or Δ threshold is required to trigger the alarm or a much greater current flow is required to trigger the alarm system.
-
Citations
10 Claims
-
1. A remotely controllable vehicle security system comprising:
-
a control unit installed in a vehicle for controlling operation of said security system; a transmitting unit for remotely controlling said control unit; a shock sensor connected to said control unit to provide an input into said control unit, said input conveying a magnitude of a shock detected by said shock sensor; means in said control unit for automatically setting a shock level at a predetermined level, wherein when a shock is detected by said shock sensor which extends said predetermined shock level an alarm is activated by said control unit; means for an operator to reset, via the transmitting unit, the shock level setting; first means in said control unit for sensing an unauthorized entry into said vehicle comprising; first means for sensing if a shock from said shock sensor exceeds a first predetermined threshold and issuing an alarm in response thereto; second means for sensing if a shock from said shock sensor exceeds a second predetermined threshold, a level of said second predetermined threshold being less than a level of said first predetermined threshold; second means in said control unit for sensing an unauthorized entry into said vehicle comprising; first means for sensing a current which exceeds a first predetermined current threshold and issuing an alarm in response thereto; second means for sensing a current which exceeds a second predetermined current threshold, said second predetermined current threshold being less than said first predetermined current threshold; and means for issuing an alarm when both a current exceeding said second predetermined current threshold and a shock exceeding said second predetermined shock threshold are sensed. - View Dependent Claims (2, 3)
-
-
4. A remotely controllable vehicle security system comprising:
-
a control unit installed in a vehicle for controlling operation of said security system; a shock sensor providing an input to said control unit; a transmitting unit for remotely controlling said control unit; means in said control unit for sensing an unauthorized entry into said vehicle comprising; first means for sensing if a shock from said shock sensor exceeds a first predetermined threshold and issuing an alarm in response thereto; second means for sensing if a shock from said shock sensor exceeds a second predetermined threshold, a level of said second predetermined threshold being less than a level of said first predetermined threshold; means for decreasing a sensitivity of said shock sensor when a shock exceeding said second predetermined threshold is detected, and wherein said alarm is also issued if a shock which exceeds said decreased shock sensitivity level is detected within a predetermined time after decreasing the sensitivity of said second sensing means. - View Dependent Claims (5, 6)
-
-
7. A remotely controllable vehicle security system comprising:
-
a control unit installed in a vehicle for controlling operation of said security system; a transmitting unit for remotely controlling said control unit; means in said control unit for sensing an unauthorized entry into said vehicle comprising; first means for sensing a current which exceeds a first predetermined current threshold and issuing an alarm in response thereto; second means for sensing a current which exceeds a second predetermined current threshold, said second predetermined current threshold being less than said first predetermined current threshold; means for sensing a shock which exceeds a predetermined shock threshold; and means for issuing an alarm when both a current exceeding said second predetermined current threshold and a shock exceeding said predetermined shock threshold are sensed. - View Dependent Claims (8, 9, 10)
-
Specification