JPH06232983A - Interphone - Google Patents

Abstract

PURPOSE:To unlock an electric lock without operating a master unit while speech with a visitor with hands-free is held and only by holding up a hand over an infrared remote controller. CONSTITUTION:When a person staying at home holds up the hand over the infrared remote controller 6 provided on a wall nearby, etc., while the speech with the visitor with hands-free is held at a place separated from the master unit 1, a human body sensor 61 for unlock senses such action, and infrared rays 7 are sent out from the infrared remote controller 6, and they are received by the infrared receiving part 18 of the master unit 1. A CPU 11 recognizes the reception of the infrared rays by the infrared receiving part 18. and outputs an unlock instruction to the electric lock 4 via a signal line 5. Thereby, the unlock operation of the electric lock 4 can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom which enables hands-free communication.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a structure of a conventional intercom that enables hands-free communication. Figure 2
In FIG. 1, 1 is a master unit, 2 is a slave unit, and the master unit 1 and the slave unit 2 are connected to each other via a line 3.

The base unit 1 is connected to a line 3 and enables a line interface 1 for inputting / outputting voice signals and data.
2. Microphone 1 for inputting audio signals from base unit 1 to handset 2
7. The amplifier 15 for amplifying the audio signal from the handset 2 and the speaker 16, the amplifier 15 and the microphone 17 connected to the amplifier 15 are controlled, and the hands-free control unit 13 and the amplifier 15 connected to the line interface 12 are provided. Ring tone output circuit 1 which is connected and outputs a ring tone from the handset 2.
4, a line interface 12, a hands-free control section 13, a CPU 11 for controlling the entire system such as a ringing tone output circuit 14, and an unlock button 18 is connected to the CPU 11, and an electric lock 5 is provided via a signal line 5.
Are connected.

The cordless handset 2 has a call button 21, which is pressed by a visitor.
A microphone 24 connected to the line 3 for inputting an audio signal from the handset 2 to the base unit 1, an amplifier 22 for amplifying the audio signal from the base unit 1, and a speaker 23 connected to the amplifier 22.

In the conventional intercom configured as described above, when a visitor presses the call button 21 provided on the handset 2, the call signal is sent to the line interface 12 of the base unit 1 via the line 3. To be done. Along with this CP
U11 recognizes that the call button 21 is pressed, and C
The ringing tone output circuit 14 is driven by a command from the PU 11, and the ringing tone amplified by the amplifier 15 is output from the speaker 16 to inform the home-resident that the visitor has arrived. At the same time, the CPU 11 drives the hands-free control unit 13 to realize a hands-free function in which a person at home can respond to a visitor at a place distant from the base unit 1.

When the person at home pushes the unlock button 18 of the base unit 1, the CPU 11 recognizes that the unlock button 18 is pushed,
An unlock command is output to the electric lock 4 via the signal line 5. The electric lock 4 performs the unlocking operation by receiving the unlocking command.

[0007]

However, in the conventional intercom as described above, the electric lock 4 is unlocked even though the user is hands-free and responds to the visitor at a place distant from the base unit. In that case, there was a problem that the electric lock 4 had to be unlocked by going to the base unit 1 and pressing the unlock button 18 provided on the base unit 1.

The present invention solves such a conventional problem, and provides an intercom which can easily unlock an electric lock without having to go to the base unit and holding a hand over the infrared remote controller. The purpose is to

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention is connected to a parent machine installed in a home and capable of responding to a visitor in a hands-free manner, and a line to the parent machine, A handset for a visitor to notify a home visitor by a call button, an infrared remote controller having a human body detection sensor for unlocking installed in the house, and a hand for the human body detection sensor for unlocking provided on the master unit. The infrared light receiving part that senses this when it is held up and receives the infrared light sent from the infrared remote control, and the infrared light receiving part recognizes that the infrared light has been received, and unlocks the electric lock connected to the parent device. And a control means for sending a lock command.

[0010]

With the above configuration, when the person at home makes a hands-free call with a visitor at a place distant from the base unit, when the person at home puts his / her hand on the infrared remote controller, the human body detection sensor for unlocking is activated. The infrared remote controller sends out infrared rays to the infrared receiver. Then, when the control means recognizes that the infrared light receiving portion has received infrared rays from the infrared remote controller, the control means sends an unlock command to the electric lock to unlock the electric lock. Therefore, the electric lock can be unlocked without bothering to go to the base unit and manually operating the infrared remote controller.

[0011]

FIG. 1 is a block diagram showing an embodiment of an intercom of the present invention. In FIG. 1, the same parts as those in FIG. 2 are denoted by the same reference numerals, and the description will be made. The parent device 1 and the child device 2 are connected by a line 3.

The cordless handset 2 has a calling button 21 which is pressed when a visitor comes to call a home person, a microphone 24 which is connected to the line 3 and inputs a voice signal from the cordless handset 2 to the handset 1, and the handset 1 The amplifier 22 that amplifies and outputs the audio signal of, and the speaker 23 connected to the amplifier 22.

The base unit 1 is connected to the line 3 to enable input and output of voice signals and data signals, a microphone 17 for inputting a voice signal from the base unit 1 to the handset 2, and a handset 2 The amplifier 15 that amplifies and outputs the audio signal of, and the speaker 16, the amplifier 15 and the microphone 17 connected to the amplifier 15 are controlled, and the line interface 1
2, a hands-free control unit 13 that enables a hands-free call, a ringing tone output circuit 14 that is connected to an amplifier 15 and outputs a ringing tone when the calling button 21 of the handset 2 is pressed, In addition to a CPU (corresponding to a control unit) 11 that controls all of them, an infrared ray receiving unit 19 connected to the CPU 11 is newly provided.

Further, an infrared remote controller 6 newly attached to a wall in the house is provided.
Is equipped with an unlocking human body detection sensor 61 for detecting when a person at home holds his / her hand over the infrared remote controller 6 and sending out infrared rays 7 from the infrared remote controller 6.

The electric lock 4 is connected to the CPU 11 via a signal line 5. Next, the operation of the present invention will be described.

When a visitor presses the call button 21 provided on the handset 2, the call signal is sent from the handset 2 to the line interface 12 of the base unit 1 via the line 3. Along with this, the CPU 11 recognizes that the call button 21 has been pressed. Then, the ringing tone output circuit 14 is driven by an instruction from the CPU 11, and the ringing tone amplified by the amplifier 15 is output from the speaker 16, thereby informing the home person that the visitor has arrived. At the same time, the CPU 11 drives the hands-free control unit 13 to realize a hands-free function in which a person at home can respond to a visitor at a place distant from the base unit 1.

On the other hand, when a person at home puts his / her hand on the infrared remote controller 6 hung on a wall nearby, the unlocking human body detection sensor 61 is activated, and the infrared remote controller 6 emits infrared rays 7. When the infrared light receiving unit 19 of the parent device 1 receives the infrared light 7, the CPU 11 recognizes that the infrared light receiving unit 19 has received the infrared light, and outputs an unlock command to the electric lock 4 via the signal line 5. The electric lock 4 performs the unlocking operation by receiving the unlocking command.

As described above, according to the above-described embodiment, when the person at home is making a hands-free call with the visitor through the base unit 1 and the handset 2, the person at home simply puts his hand over the infrared remote control 6 to turn on the electricity. An unlock command can be output to the lock 4. As a result, it is not necessary to go to the base unit 1, and the unlocking operation becomes simple.

[0019]

As is apparent from the above-described embodiment, the present invention provides an infrared remote controller having an unlocking human body detection sensor on a wall or the like, and when a home-based person is hands-free and responds to a visitor. The infrared remote control sends an infrared light for unlocking to the infrared light receiving part of the base unit by simply holding your hand over the infrared remote control, and the control means recognizes that the infrared light receiving part has received the infrared light, and it becomes an electric lock. Since the unlocking command is given and the unlocking operation is performed, there is an effect that the electric lock can be easily unlocked without bothering to go to the master unit and searching for the infrared remote controller.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an intercom of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional intercom.

[Explanation of symbols]

 1 Master unit 2 Slave unit 3 Line 4 Electric lock 5 Signal line 6 Infrared remote control 7 Infrared 11 CPU 12 Line interface 13 Hands-free control unit 14 Ring tone output circuit 15 Amplifier 16 Speaker 17 Microphone 19 Infrared receiver 21 Call button 22 Amplifier 23 Speaker 24 Microphone 61 Human body detection center for unlocking

Claims (1)

[Claims] 1. A master unit installed in a home and capable of responding to a visitor in a hands-free manner, and a child connected by a line to the master unit and used by a visitor to inform a home-resident of the visit. Machine, an infrared remote controller having a human body detection sensor for unlocking installed in the house, and the human body detection sensor for unlocking provided on the parent machine, which detects when the hand is held over and is sent from the infrared remote controller An infrared ray receiving section for receiving infrared rays, and a control means for recognizing that the infrared ray receiving section has received infrared rays and sending an unlock command to an electric lock connected to the master unit. Intercom.