Padlock for securing and monitoring a switch

Abstract

A padlock for securing and monitoring a switch of an industrial plant has a lock housing of plastic, furthermore a hoop which is displaceably held at the lock housing and a lock cylinder which is arranged in the lock housing and can selectively be brought from an open position into a locked position to lock the hoop to the lock housing. An RFID transponder is arranged in the lock housing. A securing and monitoring system for a switch of an industrial plant includes at least one such padlock and a mobile RFID reading device or an RFID reading device permanently attached in the environment of the switch, said RFID reading device being configured to read out the RFID transponder of the padlock.

1 . A padlock for securing and monitoring a switch of an industrial plant, having a lock housing of plastic, furthermore having a hoop which is displaceably held at the lock housing, and having a lock cylinder which is arranged in the lock housing and can selectively be brought from an open position into a locked position to lock he hoop to the lock housing, wherein an RFID transponder is arranged in the lock housing. 
     
     
         2 . A padlock in accordance with  claim 1 , wherein the RFID transponder is surrounded at all sides in the lock housing. 
     
     
         3 . A padlock in accordance with  claim 1 , wherein the lock cylinder has a longitudinal shape having a longitudinal axis, wherein the RFID transponder is arched with respect to the longitudinal axis of the lock cylinder. 
     
     
         4 . A padlock in accordance with  claim 3 , wherein the RED transponder extends at least along a part of the length of the lock cylinder and at least along a part of the periphery of the lock cylinder. 
     
     
         5 . A padlock in accordance with  claim 1 , wherein the RFID transponder is arranged spaced apart from the lock cylinder. 
     
     
         6 . A padlock in accordance with  claim 1 , wherein the padlock has a housing part which is secured in or at the lock housing, wherein the RFID transponder is arranged in an intermediate space between the lock housing and the housing part. 
     
     
         7 . A padlock in accordance with  claim 6 , wherein the RFID transponder is received in a recess of the lock housing or of the housing part in form-fitted manner. 
     
     
         8 . A padlock in accordance with  claim 6 , wherein the housing part also comprises plastic. 
     
     
         9 . A padlock in accordance with  claim 6 , wherein the lock housing and the housing part are secured to one another by mean of a releasable securing device, wherein the RFID transponder is captured between the lock housing and the housing part as long as the lock housing and the housing part are secured to one another. 
     
     
         10 . A padlock in accordance with  claim 9 , wherein the securing device is only accessible and releasable when the lock cylinder is brought into the open position by means of an associated key. 
     
     
         11 . A padlock in accordance with  claim 10 , wherein a limb of the hoop projects into a hoop receiving passage of the lock housing or of the housing part when the hoop i lock to the lock housing, wherein the limb of the hoop can be removed from the hoop receiving passage when the lock cylinder is brought into the open position, and wherein the releasable securing device which secures the lock housing and the housing part to one another is arranged at the end of the hoop receiving passage. 
     
     
         12 . A securing and monitoring system for a switch of an industrial plant, having at least one padlock which has a lock housing of plastic and has an RFID transponder in the lock housing, wherein the padlock is fastened to the switch, furthermore having a reference RFID transponder which is permanently fastened in the environment of the switch, and having a mobile RFID reading device which is configured to read out the RFID transponder of the padlock and the reference RFID transponder. 
     
     
         13 . A securing and monitoring system in accordance with  claim 12 , wherein the RFID reading device is configured to store a piece of identification information read out of the RFID transponder of the padlock and a piece of identification information read out of the reference RFID transponder together with a piece of time information. 
     
     
         14 . A securing and monitoring system for a switch of an industrial plant, having at least one padlock which has a lock housing of plastic and has an RFID transponder in the lock housing, wherein the padlock is fastened to the switch, and having a reference RFID transponder which is permanently fastened in the environment of the switch and which is configured to read out the RFID transponder of the padlock at predetermined times. 
     
     
         15 . A securing and monitoring system in accordance with  claim 14 , wherein the RFID reading device is configured to store a piece of identification information read out of the RFID transponder of the padlock together with a piece of time information. 
     
     
         16 . A padlock in accordance with  claim 1 , wherein the RFID transponder is a passive component without integrated energy supply and is operationally independent from both the lock cylinder and the hoop.