Parking garage security system

A security system comprising:

• a plurality of sensors;
• and
• a base station that is configured to monitor the plurality of sensors, and to perform a method to monitor a plurality of vehicle security systems, the method comprising:
• receiving an identification of a vehicle security system;
• adding the vehicle security system to a list of vehicle security systems to be monitored by the base station;
• configuring, by the base station, the vehicle security system in protect-mode, wherein the portable security system sounds an alarm in response to a sensor from the vehicle security system indicating a security-breach;
• and
• in response to the alarm from the vehicle security system, generating, by the base station, an alarm event of the security system.

A portable security system comprising:

• a sensor;
• and
• a processor configured to perform a method to secure a vehicle by causing a central security system to monitor the vehicle, the method comprising:
• providing an identification to be used by a base station of the central security system to add the portable security system as a sensor of the central security system, the identification identifies the portable security system;
• receiving, in response, from the base station, a confirmation indicating that the portable security system has been added to a list of sensors of the central security system;
• generating an alarm in response to the sensor indicating a security-breach;
• and
• in response to the security-breach, sending, by the portable security system, a notification to the base station to generate an alarm event of the central security system.