What is the reason why the passenger control system does not plug in the card to get electricity?

There may be something wrong with the sensor. Please ask an electrician to replace the sensor switch.

When inserting the card, press the microswitch to make the 555 integrated block work, control the thyristor to turn on the relay, and make the phase line conduct through the contact of the relay to supply power to the room.

When the card is taken out, the 555 integrated circuit continues to control the circuit. After a certain delay, the 555 integrated circuit does not output voltage, turning off the thyristor, making the relay lose power, thus disconnecting the power supply of the room.

Precautions for room card:

Before handing over the room key to the guest, the reception desk must confirm the identity of the guest; In principle, single rooms are only equipped with one room key, and double rooms can be equipped with two keys according to guests' requirements. When the guest checks out.

The cashier at the front desk should remind the guest to return the room key; Do not open the guest room or give the key to any visitor without the permission of the registered guest; The door key left in the guest room should be taken back by the room attendant and sent back to the reception desk for processing.

The function of uninterrupted power supply can improve the guest's stay experience and save more power resources for the hotel. At present, there are few merchants in the market who can get electricity without a card, and even fewer can actually implement the actual project. As a manufacturer of hotel room control system, Pujie Technology has been applied in two or three hotels after repeated testing and verification.