×

Security system utilizing group supervision polling

  • US 6,744,348 B2
  • Filed: 05/18/2001
  • Issued: 06/01/2004
  • Est. Priority Date: 05/18/2001
  • Status: Active Grant
First Claim
Patent Images

1. In a security system comprising a plurality of individually-addressable modules interconnected on a data bus to a control panel, a method of concurrently supervising the plurality of modules comprising the steps of:

  • a) configuring each module with a unique zone number comprising a group number and a module number;

    b) initiating, for each group number, a group supervision poll sequence, wherein each group supervision poll sequence comprises the steps of;

    i) transmitting a group poll command comprising a group number data field, the group number data field populated by the group number currently being polled;

    ii) each module substantially concurrently responding to the group poll command by;

    determining if it is a member of the group currently being polled by comparing the group number data field to the group number portion of the zone number with which it has been previously configured; and

    for each module that is a member of the group being polled, setting a discrete bit appended to a group poll response message that logically corresponds to the module number for that module; and

    iii) determining at the control panel if any bit in the group poll response message has not been set.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×