Door intercom system with pre-wake-up control mechanism

Abstract

This invention discloses a door intercom system with a pre-wake-up control mechanism. The system includes a door intercom, an electronic lock, and an indoor unit. During operation, pressing the call unit of the door intercom causes the control unit to simultaneously generate a call signal and a wake-up signal, which are sent to the indoor unit and the electronic lock respectively. The state switching unit in the electronic lock responds to the wake-up signal and controls the electronic lock to switch from a sleep mode to a wake-up mode to enter the wake-up state in advance. Thus, when an unlock command is issued through the indoor unit, the electronic lock is already in a ready state to receive and respond to the command immediately, without waiting for periodic listening intervals. This effectively shortens the response delay time from the issuance of the unlock command to the action of the lock, thereby improving the ease of operation of the access control system.

Claims

1. A door intercom system with a pre-wake-up control mechanism, comprising: a door intercom having a call unit, a control unit, and a communication unit coupled to each other, the call unit generating an operation signal, the control unit receiving the operation signal and simultaneously generating a call signal and a wake-up signal; an electronic lock communicatively connected to the door intercom, the electronic lock having a state switching unit and a lock body drive unit coupled to each other, the electronic lock receiving the wake-up signal in a sleep mode and transmitting the wake-up signal to the state switching unit to execute a state switching procedure to switch the electronic lock from the sleep mode to a wake-up mode; An indoor unit is communicatively connected to the door intercom and the electronic lock. The indoor unit has an operating interface and an unlocking control unit coupled to each other. The operating interface can input an unlocking operation to generate an unlocking signal. The unlocking signal is transmitted to the electronic lock through the communication unit of the door intercom. When the electronic lock receives the unlocking signal, the state switching unit controls the lock body drive unit to drive a lock body of the electronic lock to perform an unlocking action according to the unlocking signal.

2. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, The control unit can send the wake-up signal to the electronic lock in the form of a broadcast packet or a connection-directed packet through a wireless communication protocol built into the communication unit. The wireless communication protocol can be any one of BLE module, Zigbee, Z-Wave, Wi-Fi, 433MHz radio frequency, LoRa or Thread.

3. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, This wake-up mode allows the electronic lock to continuously activate a radio frequency receiving function and be in a continuous listening state, so as to receive any external commands sent from the indoor unit at any time.

4. A door intercom system with a pre-wake-up control mechanism as described in claim 3, wherein, In this wake-up mode, the electronic lock's response delay to the incoming command is less than 50 milliseconds.

5. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, The state switching unit can activate a wake-up timer function to start counting a preset wake-up duration. The preset wake-up duration can be a preset fixed value and can be set through the operation interface of the indoor unit.

6. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, When the electronic lock is in the wake-up mode, the state switching unit continuously monitors whether at least one response condition is met. The response condition can be set by the state switching unit to check whether a wake-up timer function inside has reached a preset wake-up duration. The state switching unit can determine whether the time has expired by checking an internal timer status flag or a count value.

7. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, The state switching unit outputs a control signal to the electronic lock, causing the electronic lock to switch its internal radio frequency transceiver circuit from a periodic intermittent working mode to a continuous working mode in response to the control signal.

8. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, The state switching unit can adjust one of the monitoring parameters of the electronic lock or interrupt the sleep timer of one of the electronic locks, so that the electronic lock will no longer enter the sleep state.

9. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, The state switching unit can be a circuit module integrated into the main control chip of the electronic lock. It implements a state switching logic by executing an embedded firmware program to control the electronic lock to switch between a sleep monitoring mode and a wake-up monitoring mode.

10. A door intercom system with a pre-wake-up control mechanism as described in claim 1, wherein, After receiving the wake-up signal, the electronic lock's state switching unit controls the electronic lock to switch modes in advance, thus pre-wakes up the electronic lock.

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