Plug and socket device

1. A plug and socket device, comprising:

a socket;

a plug that is insertable into the socket, wherein

the plug or the socket has a detection unit that is designed to detect correct positioning of the plug in the socket,

the detection unit comprises a switching element that is designed to be mechanically activated in an event of correct positioning,

the detection unit further comprises an electrical circuit,

the switching element is a crimping contact,

the switching element is configured so as to close the electrical circuit when activated,

the switching element is configured to be closed by mechanical pressure which acts on the switching element as a result of a plug connection between the plug and the socket, and

the detection unit is configured to detect whether the plug is inserted completely into the socket.

2. The plug and socket device according to claim 1 , wherein

the switching element is designed to connect two lines of the electrical circuit.

3. The plug and socket device according to claim 1 , wherein

the circuit is designed as a film.

4. The plug for insertion into the socket in the plug and socket device according to claim 1 .

5. The socket for receiving the plug in the plug and socket device according to claim 1 .

6. The plug and socket device according to claim 1 , wherein

the electrical circuit is an RFID transponder.

7. The plug and socket device according to claim 6 , wherein

the RFID transponder has an antenna, and

the switching element is designed to supply the antenna with power in an activated state.

8. The plug and socket device according to claim 7 , wherein

the RFID transponder is designed to transmit a signal to a reader via the antenna in an electrically closed state.

9. The plug and socket device according to claim 8 , wherein

the signal contains information about a positioning of the plug in the socket and/or further information about the plug and/or the socket.