JP2011160048A - Intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom system including an additional master unit that locates and approaches the user, to allow the user to answer the bell anywhere without carrying the master unit. <P>SOLUTION: The intercom system comprises: an entrance slave unit to be used by a visitor to call and talk with a resident; and an intercom master unit for answering the call from the entrance slave unit to talk with the visitor. In the intercom system, the intercom master unit includes a CPU for driving a long-range human sensor and a short-range human sensor for detecting a resident when receiving a call signal from the entrance slave unit, driving a moving means for moving toward the resident when the long-range human sensor detects the resident, and stopping the moving means when the short-range human sensor detects the resident. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an intercom system, and more particularly to an intercom system that can respond regardless of the position of a resident.

  Conventionally, intercom systems that can respond to calls from visitors as interphone systems have a wireless portable base unit that can respond anywhere and can respond even in places where no additional interphone base unit is installed (For example, Patent Document 1).

JP 2000-224316 A

However, the conventional intercom system is inconvenient because the mobile phone has to be carried around all the time. Eventually, it is often left on the charging stand. I had to go to the charging stand.

  The present invention has been made to solve the above-mentioned problems, and the extension interphone master itself detects the whereabouts of the person and approaches it, so there is no need to carry the extension interphone master and can be called anywhere. The object is to provide an intercom system that can respond.

  In order to achieve the above-described object, an intercom system according to a first aspect of the present invention includes an entrance slave unit for a visitor to call a resident and make a call, and a visitor in response to a call from the entrance slave unit In the interphone system composed of the interphone master unit for calling with the interphone master unit, the interphone master unit includes a human sensor for a long distance and a human sensor for a short distance to detect a resident when a call signal is received from the front handset. Driving and driving the moving means for moving in the direction of the resident when the long-distance human sensor detects a resident, and stopping the moving means when the short-distance human sensor detects the resident It is characterized by having a CPU that performs the above.

The intercom system according to the second aspect of the present invention is the interphone system according to claim 1, wherein the entrance cordless handset has a camera that images a visitor, and the CPU detects a person when the human sensor for short distance detects a person. It is characterized by controlling the video transmitted from the entrance unit on the monitor.
An interphone system according to a third aspect of the present invention is the interphone system according to claim 1 or 2, wherein the CPU has a microphone and a telephone for communicating with the entrance cordless handset when the human sensor for short distance detects a person. It is characterized in that a speaker is driven to perform control for forming a speech path.

An interphone system according to a fourth aspect of the present invention is the interphone system according to any one of claims 1 to 3, wherein the interphone base unit has a base unit camera for imaging a resident. When the interphone master unit is connected and the CPU detects a call signal as an extension call from another interphone master unit, the CPU drives the base unit camera to transfer the captured video to the other interphone master unit. It is characterized by performing transmission control.

According to the interphone system of the first aspect, the interphone base unit itself detects the location of the person and approaches the interphone base unit, so that it is not necessary to carry the extension interphone base unit and can answer the call anywhere.
According to the intercom system of claim 2, it is possible to suppress the output time to the monitor, so that it is possible to eliminate the need for extra power. It is more effective.
According to the interphone system of claim 3, when the interphone master unit approaches the resident, it automatically shifts to the call mode, so no extra operation is required, and it is convenient for people who cannot move their hands, for example. is there.
According to the intercom system of the fourth aspect, in the case of an extension call, since the resident can be imaged, the situation can be conveyed to the other party by video.

It is a block diagram of the intercom system in this invention. It is a block diagram of the intercom system in the present invention.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which an intercom system of the invention is applied will be described with reference to the drawings.

FIG. 1 is a system configuration diagram showing an intercom system according to a first embodiment of the present invention. An entrance handset 100 operated by a visitor, an interphone base unit 200 connected to the entrance handset 100, and an interphone base unit 200. It is comprised from the expansion intercom main | base station 300 which communicates.
Instead of the interphone master device 200, only the extension interphone master device 300 may be used, and communication with the entrance slave device 100 may be performed wirelessly. Further, there may be a plurality of extension intercom base units 300.
The extension intercom base unit 300 includes a camera 1 for capturing the responding resident itself, a monitor 2 for displaying images captured by the camera of the entrance unit for capturing the visitor and the camera of the other base unit, A long-distance human sensor 3 for detecting a person in the distance, a short-distance human sensor 4 for detecting a person in a short distance, a touch sensor 5 for shifting to a call mode, and approaching a resident. Left and right wheels 6 and 7, an antenna 8 for communicating with the front door unit and other extension interphone master units, a microphone 9 for communicating with the front door unit and other extension interphone base units, and a speaker 10. ing.

FIG. 2 is an internal block diagram of the extension interphone master unit of the interphone system.
As a configuration other than FIG. 1, a wireless I / F 11 for enabling wireless communication, a video circuit 12 that receives an image captured by the front door slave device 100 via the interphone master device 200, and processes the video image, A touch sensor monitoring circuit 13 for monitoring the state of the touch sensor 5, a call control circuit 14 for making a call, a monitoring circuit 15 for a short distance sensor for monitoring the state of the human sensor 4 for a short distance sensor, and an extension interphone master unit CPU 16 for controlling each of the circuits, a long distance sensor monitoring circuit 17 for monitoring the state of the long distance human sensor 3, left and right wheel motors 18 and 20 for driving the left and right wheels 6, 7. The motor drive circuit 19 is configured to drive the wheel motor.

The operation of the intercom system configured as described above will be described below.

When there is a call from the front cordless handset 100, a call signal is transmitted to the extension intercom base unit 300 via the intercom base unit 200. The call signal is received by the antenna 8 and detected by the CPU 16 via the wireless I / F 11. Further, the extension intercom master 300 that detects this activates the long-distance human sensor 3 and the short-distance human sensor 4 and controls the motor drive circuit 19 to drive the left and right wheel motors 18 and 20. The left and right wheels 6 and 7 are operated. At this time, in order to detect a person, the left and right wheels 6 and 7 are rotated in reverse to rotate the extension intercom master unit 300 itself.
When the long-distance human sensor 3 detects a person in this way, the long-distance sensor monitoring circuit 17 transmits a person detection signal to notify the CPU 16 that the person has been detected. Receiving this, the CPU 16 controls the motor drive circuit 19 to stop the left and right wheels 6 and 7 that have been rotated in reverse, and drives the left and right wheel motors to change to forward rotation. . Thereby, the extension intercom base unit 300 can start moving in the direction detected by the long-distance human sensor 3.

In the meantime, in the extension intercom base unit 300, the short-distance human sensor 4 is active, and when the resident approaches a predetermined distance, the short-distance human sensor 4 detects this, and the short-distance sensor monitoring circuit 15 Notifies the CPU 16 that there is a resident nearby.
The CPU 16 that has detected this controls the motor drive circuit 19 to stop the rotation of the wheels 6 and 7 and controls the image taken by the front door 100 to be displayed on the monitor 2 via the video circuit 12. To do. Thereby, the resident can know that the visitor came without moving. As for the ringing tone for notifying the visitor, the interphone base unit 200 notifies the ringing tone when the call signal is detected as usual, but in the extension interphone base unit 300, the short distance human sensor 4 detects a person. Can be alerted from the speaker 10.
As a result, notification in a place where the ringing tone does not reach can be avoided, so that the call can be confirmed with certainty. Further, since the image output to the monitor 2 is also performed when the human sensor 4 for short distance detects a person like the ringing sound, power consumption can be suppressed.
The resident who confirmed this touches the touch sensor 5 to shift to the call mode. As a result, the touch sensor monitoring circuit 13 notifies the CPU 16, controls the call control circuit 14, and uses the microphone 9 and the speaker 10 to communicate with the entrance cordless handset 100 via the wireless I / F 11, the antenna 8, and the interphone master unit 200. You can make a call.

Next, a case where there is a call from the intercom base unit 200 or another extension intercom base unit 300 will be described.

When a call is made from the intercom base unit 200 by extension, the call signal is received by the antenna 8 and is detected by the CPU 16 in the same manner as when the call signal is received from the front door unit 100.
Then, similarly to the above-described operation, the mode is shifted to the call mode, and if the other party has a camera, the image is displayed on the monitor 2. Similarly to the above-described operation, when a person is detected by the long-distance human sensor 3, the person approaches the person and stops when the short-distance human sensor 4 detects the person. When the human sensor 4 for short distance detects a person, the camera 1 of the extension intercom base unit 300 is driven under the control of the CPU 16.
As a result, the video imaged by the camera 1 is appropriately processed by the video circuit 12 and transmitted to the interphone base unit 200 or other extension interphone base unit 300 via the wireless I / F 11 and the antenna 8 for two-way communication. It is possible. By controlling in this way, the camera can be driven only when a person is present, so that power consumption can be suppressed.

In the above-described embodiment, it is assumed that the short-distance human sensor 4 detects the timing of the image output and the timing of the ringing sound, but the present invention is not limited to this, and may be when the call signal is received.
Further, although the call is performed by operating the touch sensor 5, it is also possible to automatically enter the call mode when the human sensor 4 for short distance detects a person. Thereby, the resident does not need an extra operation, and for example, even a person who cannot move his / her hand can easily use it.
In order to return to the standby state, it is possible to operate the touch sensor 5 to end the call or to automatically end the call using a timer (not shown).

In the above embodiment, when both the long-distance human sensor 3 and the short-distance human sensor 4 do not detect a person for a certain period of time, the operation of the extension intercom base unit 300 is stopped and returned to the standby state. Control takes place.

DESCRIPTION OF SYMBOLS 100 ... Entrance cordless handset 200 ... Interphone main unit 300 ... Extension intercom main unit 1 ... Camera 2 ... Monitor 3 ... Human sensor for long distance 4 ... Human sensor for short distance 16 ... CPU

Claims (4)

In an intercom system composed of an entrance handset for a visitor to call a resident and make a call, and an interphone base unit for making a call with a visitor in response to a call from the entrance handset,
The intercom base unit drives a human sensor for long distance and a human sensor for short distance to detect a resident when receiving a call signal from the entrance terminal, and the human sensor for long distance detects a resident A moving unit for driving in the direction of the resident, and a CPU for controlling the moving unit to stop when the human sensor for short distance detects the resident. Intercom system to do. The entrance cordless handset has a camera that images a visitor,
The interphone system according to claim 1, wherein the CPU performs control to display an image transmitted from the entrance slave unit on a monitor when the human sensor for short distance detects a person. 2. The CPU performs control to form a communication path by driving a microphone and a speaker in order to make a call with the entrance cordless handset when the near-field human sensor detects a person. Or the intercom system of Claim 2. The intercom master unit has a master camera for capturing images of residents,
The intercom master unit is connected to the entrance slave unit,
When the CPU detects a call signal as an extension call from the other intercom master unit,
The interphone system according to any one of claims 1 to 3, wherein the CPU performs a control of driving the master camera and transmitting a captured image to the other interphone master.

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