초록 ▼

An event monitoring system for payphones is described. Particularly, an arrangement for monitoring events such as the removal of the front cover, vault door and coin box is described. Sensors attached to brackets generate signals indicative of front cover, vault door and coin box removal are sensed

An event monitoring system for payphones is described. Particularly, an arrangement for monitoring events such as the removal of the front cover, vault door and coin box is described. Sensors attached to brackets generate signals indicative of front cover, vault door and coin box removal are sensed by a monitoring circuit and sent to a central telephone office as appropriate. The brackets allow easy mounting of the sensors using existing payphone housing hardware, surfaces and cutouts. Consequently, this mounting arrangement may be used to retrofit standard payphones using only pre-existing mounting locations and holes to include event monitoring capability. The sensors and monitor circuit operate on low power and may be designed to operate in the absence of payphone power.

대표청구항 ▼

A payphone event monitoring system which may be readily installed in a standard payphone housing using preexisting payphone cutouts and which generates signals indicative of the removal of a coin box, a vault door or a front cover, comprising: (a) a first sensor bracket assembly to which is attached

A payphone event monitoring system which may be readily installed in a standard payphone housing using preexisting payphone cutouts and which generates signals indicative of the removal of a coin box, a vault door or a front cover, comprising: (a) a first sensor bracket assembly to which is attached a front cover sensor and a vault door sensor; (b) a second sensor bracket assembly, containing a coin box sensor; and (c) a means for monitoring the sensors and sending a signal indicative of removal of the coin box, vault door or front cover.