TWI616581B - Electronic lock with hand shaking function - Google Patents

Abstract

A method for preventing a forced opening of an electronic lock by electrically connecting a switching signal input interface and a motor, the motor comprising a motor body and a motor controller, wherein when the switching signal input interface receives a switching signal, the controller is directed to the motor After the controller outputs the switch command, the motor controller outputs a handshake confirmation request to the controller, and after obtaining the controller confirmation signal, the motor controller controls the motor body to drive the latch structure to change the state of the switch. The invention can confirm whether the switch command is issued by the controller by the handshake confirmation request, and can prevent the motor from being improperly driven by the external force to unlock, thereby preventing the electronic lock from being forcibly opened.

Description

Prevent forced opening of electronic locks

The present invention relates to an electronic lock device, and more particularly to a method for preventing forced opening of an electronic lock that prevents the motor from being driven by an external force without being unlocked.

In addition to the locks that are generally opened by a key, there is also an electronic lock that opens or closes the door by receiving a wireless signal of the access card or by fingerprint recognition. The advantage of the electronic lock is that the size of the access card is small. It is easy to store and carry, and even when the lock is unlocked, the access card is not required. As long as the finger is extended to recognize the electronic lock, it is a device that can facilitate the user to open and close the door.

Although the existing electronic lock has the advantages of the above use, since the electronic lock opens or closes the door in the manner of the motor-driven latch structure, when the outer casing of the electronic lock is damaged, the gangster who knows the electronic lock structure can be driven by the external force. The method forces the motor of the electronic lock to open the latch structure, causing the electronic lock to fail and allowing the gangster to enter the house for theft.

Since the existing electronic lock is damaged, the motor can be forcibly driven by an external force, causing the electronic lock to fail and allowing the gangster to enter the house for theft. Therefore, the present invention solves the problem that the electronic lock is forcibly opened by means of confirming the source of the signal between the motor and the controller.

In order to achieve the above object, the present invention provides a method for preventing forced opening of an electronic lock, comprising: a controller; a switching signal input interface is electrically connected to the controller and receives a switching signal from the outside to output the switching signal to the controller; a motor includes a motor body and a motor control integrated in the motor body The motor controller is electrically connected to the controller and preloads a handshake confirmation signal. When the controller receives the switch signal, it outputs a switch command to the motor controller, and the motor controller receives the switch command. And outputting a handshake confirmation request to the controller, the motor controller controls the operation of the motor body after receiving the response from the controller and confirming that it is the same as the handshake confirmation signal; and a latch structure having an opening The closed state is driven by the motor body to change the state of the latch configuration when the motor body is in operation.

Further, the switch input interface of the present invention is a keyboard input module, a fingerprint identification module, an iris recognition module, a Bluetooth communication module, an infrared communication module, a near field communication module, a wifi communication module, or a zigbee Communication module.

When the present invention is installed on a door, the motor will confirm to the controller whether the signal of the switch command is sent by the controller before the motor is driven by the switch command to drive the latch structure, and the controller replies with the same handshake signal as the handshake confirmation signal. After the signal is confirmed that the aforementioned switch command is issued by the controller, the motor controller can further control the motor body to drive the latch structure to change state, and achieve the effect of opening or closing the door.

Because the general motor is driven by high potential or low potential, when the gangster destroys the outer casing of the electronic lock, it can try to drive the motor by the external input high and low potential. If the motor needs to be confirmed before the action, the preload is in the motor. The handshake confirmation signal for comparison confirmation in the controller may be a signal mixed with a specific frequency of 100 kHz, 50 kHz, or a series of encrypted input passwords.

According to the present invention, the design of the signal source is confirmed before the door opening operation is performed by the motor, so that after the gangster destroys the casing of the present invention, the power supply cannot be correctly returned due to the failure to correctly respond to the handshake confirmation request output by the motor controller. After that, the external power transmission method drives the motor to move. In this way, the electronic lock can be prevented from failing when the damage is received, and the problem that the electronic lock is forcibly opened by the external force is prevented.

10‧‧‧ Controller

20‧‧‧Switch signal input interface

30‧‧‧Motor

31‧‧‧Motor body

32‧‧‧Motor controller

40‧‧‧Latch construction

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the construction of a preferred embodiment of the present invention.

2 is a flow chart showing an implementation of a preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, it can be implemented in accordance with the contents of the specification, and further described in detail with reference to the preferred embodiments shown in the drawings.

As shown in FIG. 1 and FIG. 2, the present invention is a method for preventing forced opening of an electronic lock, comprising a controller 10, a switching signal input interface 20 electrically connected to the controller 10, and a motor 30, and a motor. 30-drive latch structure 40, wherein: the controller 10 is a microcontroller, which integrates a central processing unit, a random access memory, a read-only memory, an input/output, a digital/analog conversion function, and the like. Processing, memory storage, input/output, and control.

The switch signal input interface 20 is a keyboard input module, a fingerprint identification module, an iris recognition module, a Bluetooth communication module, an infrared communication module, a near field communication module, a wifi communication module, or a zigbee (Zigbee) The communication module can receive a switching signal from the external button input, biometric feature or wireless communication, and output the switching signal to the controller 10.

The motor 30 includes a motor body 31 and a motor controller 32 integrated in the motor body 31. The motor controller 32 is electrically connected to the motor body 31 and the controller 10, respectively. The motor controller 32 is preloaded. A handshake confirmation signal, the handshake confirmation signal may be a specific frequency mixing a signal of 100 KHz, 50 KHz, or a series of encrypted input passwords, and the controller 10 can output the same signal as the handshake confirmation signal in response to the handshake confirmation request of the motor controller 32, when the controller 10 receives the signal After the switch signal is output, a switch command is output to the motor controller 32. After receiving the switch command, the motor controller 32 outputs a handshake confirmation request to the controller 10, and the controller 10 is replied to the handshake confirmation. The request and confirmation that the reply signal is the same as the handshake confirmation signal. After the switch command is actually issued by the controller 10, the motor controller 32 controls the operation of the motor body 31.

The latch structure 40 has an open or closed state and is driven by the motor body 31 of the motor 30. When the motor body 31 is in operation, the state of the latch structure 40 is changed, for example, from an open state to a closed state, or by The closed state changes to the open state.

When the invention is used, it is installed at the gate. When the door is opened or closed, the implementation flow as shown in FIG. 2 is executed, as follows: Start: Start the invention.

The switch signal input interface receives the switch signal output to the controller: the switch signal input interface 20 receives a switch signal, and outputs the switch signal to the controller 10.

The controller outputs a switch command to the motor controller: after receiving the switch signal, the controller 10 outputs a switch command to the motor controller 32.

The motor controller outputs a handshake confirmation request: after receiving the switch command, the motor controller 32 outputs a handshake confirmation request to the controller 10.

The controller replies to the handshake confirmation request: after receiving the handshake confirmation request output by the motor controller 32, the controller 10 replies to the motor controller 32 with the handshake confirmation request, and the signal replied by the controller 10 The handshake confirms the signal alignment such that the motor controller 32 confirms that the switch command was indeed issued by the controller 10.

The motor controller drives the motor body: when the motor controller 32 confirms that the switch command is actually issued by the controller 10, the motor body 31 is controlled to operate.

The latch configuration switch action: the motor body 31 drives the latch structure 40, changes the state of the latch structure 40 from closed to open, or changes the state of the latch configuration 40 from open to closed.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention, and other equivalent changes or modifications which are not departing from the spirit of the present invention should be included in the present invention. Within the scope of the patent application.

Claims (2)

A method for preventing forced opening of an electronic lock comprises: a controller; a switching signal input interface electrically connected to the controller, and receiving a switching signal from the outside to output the switching signal to the controller; a motor comprising one a motor body and a motor controller integrated in the motor body, the motor controller is electrically connected to the controller and preloaded with a handshake confirmation signal, and when the controller receives the switch signal, outputs the switch signal to the motor controller After a switch command, the motor controller outputs a handshake confirmation request to the controller after receiving the switch command, and the motor controller is only after the controller replies and confirms that it is the same as the handshake confirmation signal. Controlling the operation of the motor body; and a latch structure having an open or closed state and being driven by the motor body to change the state of the latch structure when the motor body is in operation. For example, in claim 1, the switch input interface is a keyboard input module, a fingerprint identification module, an iris recognition module, a Bluetooth communication module, an infrared communication module, and a near field communication module. , wifi communication module, or zigbee communication module.