JP2007174147A - Video intercom system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video intercom system which is capable of assuring a power supply for its operation in a power failure and saving an electric power by restraining a useless consumption of electric power. <P>SOLUTION: When a power failure is detected by the power failure detection circuit 209 of a master unit 2 in a living room, an emergency illuminating light 204 configured in one piece with a battery 204a is turned ON by a DC power supplied from the battery 204. and the DC power supply serves as an operating power supply for the living room host unit 2 and a door slave unit 1. The emergency illuminating light 204 can be mounted in a detachable manner on the master unit 2 in the living room. Or, the emergency illuminating light 204 is turned only when a human body is sensed by a human being sensor 203. The residual DC power of the battery 204a which is previously charged is displayed on residual power displays 205 and 206. While a commercial power is supplied, only when the brightness of the dwelling rooms detected by an illuminance sensor 207 is below certain illuminance, the emergency illuminating light is turned ON as a nocturnal illuminating light. Furthermore, the back light 205b of a monitor 205 is turned ON only when the brightness of the dwelling rooms detected by the illuminance sensor 207 is above a certain illuminance while a call is being made on the door slave unit 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a television door phone device installed in a detached house, and more particularly to a television door phone device that secures an operating power supply during a power outage and saves power by suppressing wasteful power consumption.

  Conventionally, an alarm monitoring panel for an apartment house that can be operated even in the event of a power failure, an apartment house monitoring call system (see, for example, Patent Document 1) constructed using the same, and an elevator in a car at the time of a power failure When the power supply is turned off, the lights are turned off (inconspicuous), and the passenger is trapped in the car, a blackout device that lights an external notification button light such as an emergency intercom (see, for example, Patent Document 2). And are each disclosed.

  According to the alarm monitoring panel for collective housing of Patent Document 1, since it has a backup power supply that supplies power in the event of a power failure, not only can operation be maintained during a power failure, but if an abnormal signal is received, the unit number where the abnormality occurred Is displayed on the display unit and an abnormality alarm is output, so that the manager can easily confirm where and what abnormality has occurred even during a power failure. In addition, the alarm monitoring panel for apartments is equipped with a dwelling unit call button and an intercom automatic call connection means, and if an administrator receives an abnormality alarm and operates the dwelling unit call button, the dwelling unit where the abnormality has occurred is automatically selected. Since it can be called, the trouble of confirming the dwelling unit number displayed on the display unit and entering the dwelling unit number in the operation unit and calling it is saved, and mistakes are reduced. Also, in the event of a power failure, the housing information panel receives power from the emergency power supply, and the collective housing alarm monitoring panel receives power from the built-in backup power source. Can be maintained. Furthermore, the alarm monitoring panel for apartment houses displays the unit number where the abnormality occurred on the display unit and at the same time outputs an abnormality alarm, so the manager receives this and where and what kind of abnormality occurred. Easy to confirm.

  Further, according to the blackout device of Patent Document 2, when a power failure occurs, the emergency notification power supply device turns on the external notification button light for a certain period of time. The notification button light can be turned on.

JP-A-11-161883 (paragraph numbers “0010” to “0018”, FIGS. 1 and 2) Japanese Patent Laid-Open No. 6-92567 (paragraph numbers “0010” to “0019”, FIGS. 1 and 2)

  According to Patent Document 1 and Patent Document 2 described in the background art, it is possible to secure an operating power supply during a power failure and drive the display unit, or to turn on the external notification button lamp for a certain period of time. However, since there is no effective lighting function for moving people such as residents at the time of power outage at night, not only is safety lowered, but it can be carried by people to eliminate this Emergency lighting etc. had to be prepared separately.

  The present invention was made in order to eliminate this difficulty, and in order to ensure safety, a DC power source charged in a power storage unit configured integrally with an illuminating lamp that performs an emergency display as necessary is provided. This power supply is secured as an operating power supply in the event of a power failure in the living room master unit and the entrance slave unit to which the illumination lamp is detachably attached, and power consumption is reduced by suppressing the power consumption required for the display operation performed in the living room master unit. An object of the present invention is to provide a TV door phone device that can perform the above-described operation.

  In order to achieve the above-described object, a television door phone device according to a first aspect of the present invention includes an entrance cordless handset having a camera installed at a front door, and an image captured by the camera of the front door cording device installed in a dwelling unit. And a living room base unit having a monitor for displaying the. The room master unit has a power storage unit that is charged with DC power by supplying power from a commercial power supply, a power failure detection circuit that monitors the presence or absence of power supply from the commercial power supply, It has an emergency lighting lamp that is turned on by supplying DC power from the power storage unit when a power failure is detected by the detection circuit.

  Further, in the television door phone device according to the second aspect of the present invention, in the first aspect of the present invention, the emergency illumination lamp is configured integrally with the power storage unit, and is detachably attached to the parent room. is there.

  In addition, in the television door phone device according to the third aspect of the present invention, in the first aspect or the second aspect of the present invention, the entrance cordless handset and the room base phone are configured to supply DC power from the power storage unit during a power failure. It works by.

  Moreover, the television door phone apparatus which is the 4th aspect of this invention WHEREIN: The 1st aspect thru | or 3rd aspect of this invention WHEREIN: A living room main | base station is a human sensor for detecting the presence or absence of a human body, It is equipped with a control circuit for turning on the emergency indicator lamp when the power failure is detected by the power failure detection circuit and the human sensor detects the presence of the human body, and turning off when the human body is not detected. It is a thing.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the living room master unit is configured to display a remaining power for displaying the remaining amount of DC power in the power storage unit. A quantity display unit is provided.

  Moreover, the television door phone apparatus which is the 6th aspect of this invention is a illuminance sensor for detecting the brightness in a dwelling unit in the 1st aspect thru | or 5th aspect of this invention. And a control circuit for controlling lighting of the emergency illumination lamp as a night illumination lamp when it is determined that the illumination intensity sensor is less than a certain illuminance.

  Moreover, the television door phone apparatus which is the 7th aspect of this invention is a 6th aspect of this invention. WHEREIN: A living room main | base station is equipped with a backlight in a monitor, there is a call from an entrance cordless handset, and it is constant by an illumination sensor. The backlight is turned on when it is detected that the brightness is above the specified level, and the backlight is turned off when the illuminance sensor detects that the brightness is below a certain level due to a call from the entrance unit. And a control unit for manually turning on the backlight regardless of whether the illuminance sensor is detected.

  Moreover, the television door phone apparatus which is the 8th aspect of this invention is a 6th aspect of this invention. WHEREIN: A living room main | base station is equipped with a backlight in a monitor, there is a call from an entrance cordless handset, and it is constant by an illumination intensity sensor. When it is detected that the illuminance is higher than the illuminance, the backlight is turned on, and the backlight is turned off when the illuminance sensor detects that the illuminance sensor is below a certain illuminance. The human sensor has a control circuit for controlling lighting when the presence of a human body is sensed.

  According to the television door phone device according to the first aspect of the present invention, when a power failure is detected by the power failure detection circuit of the living room master unit, the emergency illumination lamp can be turned on by supplying DC power from the power storage unit. Can be secured during a power outage.

  Moreover, according to the TV door phone apparatus which is the 2nd aspect of this invention, since the emergency lighting and the electrical storage part which can be attached or detached freely to a living room main | base station are comprised integrally, not only at the time of a power failure but energization The emergency lighting can be removed from the parent machine at times.

  In addition, according to the television door phone device according to the third aspect of the present invention, the DC power source charged in advance in the power storage unit configured integrally with the emergency lighting lamp can It becomes an operating power source for the entrance unit, and in particular, an operating power source during a power failure can be easily secured.

  Further, according to the television door phone device of the fourth aspect of the present invention, the emergency illumination lamp can be turned on only when the presence of the human body is detected by the human sensor during energization. Wasteful power consumption due to power supply is suppressed, and power saving is achieved.

  Moreover, according to the television door phone apparatus which is the 5th aspect of this invention, the residual amount of the DC power supply previously charged by the electrical storage part comprised integrally with the emergency illumination lamp can be confirmed easily.

  Moreover, according to the television door phone device of the sixth aspect of the present invention, the emergency lighting is turned on at night only when the brightness in the dwelling unit detected by the illuminance sensor during energization is less than a certain illuminance. Because it can be turned on as an illumination light, the emergency illumination light remains off when the interior is bright and the brightness of the interior is above a certain level of illuminance, even during daytime, even during energization It is possible to hold the power, and wasteful power consumption due to power supply from the power supply circuit is suppressed, thereby saving power.

  In addition, according to the television door phone device of each of the seventh and eighth aspects of the present invention, the brightness in the dwelling unit detected by the illuminance sensor when a call is made from the entrance unit is equal to or greater than a certain illuminance. The backlight of the monitor can be turned on only in the case of, for example, the display of feeling uncomfortable for a sleeping resident who suddenly displays the visitor's face in a dark dwelling unit. Can be identified. The backlight can be turned on manually or when the presence of a human body is detected by a human sensor.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments to which a television door phone device of the invention is applied will be described with reference to the drawings.

  FIG. 1 is a system explanatory diagram showing the overall configuration of a television door phone device according to an embodiment of the present invention.

  The TV door phone apparatus shown in FIG. 1 includes an entrance cordless handset 1 installed at the entrance, a room master set 2 installed in the dwelling unit, and at least one security for detecting a security abnormality such as a fire or gas leak. The sensor, here, is composed of one security sensor 3 and a commercial power supply (AC 100 V) 4. The living room master unit 2 is connected to the entrance slave unit 1 via the slave unit line L1, the security sensor 3 via the sensor line L2, and the commercial power source 4 via the power line L3. Yes.

  The entrance handset 1 includes a call button 100, a camera 101, a microphone (hereinafter referred to as a handset microphone) 102, and a speaker (hereinafter referred to as a handset speaker) 103.

  In the entrance cordless handset 1, a call button 100 is used for an operation for a person at the entrance, for example, a visitor, to call a resident in a room in a dwelling unit.

  The camera 101 is for capturing an image of a visitor and an image near the entrance. As this camera 101, for example, various image sensors such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) are suitable.

  The handset microphone 102 and handset speaker 103 are for inputting / outputting voice (transmitted voice, received voice) when a visitor establishes a call with a resident.

  In the entrance handset 1, the installation positions of the call button 100, the camera 101, the handset microphone 102, and the handset speaker 103 are not limited to the mode shown in FIG. Can be provided in position.

  The living room master unit 2 includes a speaker (hereinafter referred to as a master unit speaker) 200, a microphone (hereinafter referred to as a master unit microphone) 201, an operation unit 202, a human sensor 203, an emergency light 204, a monitor 205, An LED (Light Emitting Diode) 206 and an illuminance sensor 207 are provided.

  In this room master unit 2, the base unit speaker 200 emits a ringing tone or voice message indicating that there is a call from a visitor, an alarm sound or voice message indicating the content of the security abnormality detected by the security sensor 3, or the like. In addition to sound / ringing, the resident outputs a voice (received voice) when establishing a call with a visitor.

  The base unit microphone 201 is used for inputting voice (transmitted voice) when a resident establishes a call with a visitor.

  The operation unit 202 allows a resident who has confirmed that there is a call from a visitor to perform a response operation for establishing a call using the parent device speaker 200 and the parent device microphone 201, and a backlight 205b described later of the monitor 205. An operation for manually lighting is performed. As the operation unit 202, for example, various operation buttons such as a call button and a light lighting button, and a touch panel are preferable.

  The human sensor 203 is for detecting the presence or absence of a human body such as a resident in the vicinity of the living room base unit 2.

  The emergency lighting 204 is turned on at the time of a power failure in which the power supply to the room base unit 2 by the commercial power supply 4 is stopped. The emergency illumination lamp 204 is configured integrally with the power storage unit 204a and is detachably attached to the living room base unit 2. As the power storage unit 204a, for example, not only a part having a power storage function such as a storage battery, a super capacitor, and a battery but also a part having a charge power storage function such as a dry battery as a primary battery is preferable.

  The monitor 205 is an image captured by the camera 101 of the front door 1, a text message or picture data indicating that there is a call from a visitor, a text message indicating the content of the security abnormality detected by the security sensor 3, While displaying picture data etc., the remaining amount of electric power (DC power supply) precharged in the power storage unit 204a configured integrally with the emergency lighting lamp 204 is displayed, for example, a remaining power display unit for displaying an indicator Constitute. As the monitor 205, for example, an LCD (Liquid Crystal Display) is suitable.

  The LED 206 displays the remaining amount of power (DC power supply) charged in advance in the power storage unit 204a configured integrally with the emergency lighting lamp 204, for example, a remaining power display unit that blinks / lights in a predetermined emission color Configure.

  The illuminance sensor 207 is for detecting the brightness in the dwelling unit.

  In the living room master unit 2, the installation positions of the master unit speaker 200, the master unit microphone 201, the operation unit 202, the human sensor 203, the emergency light 204, the monitor 205, the LED 206, and the illuminance sensor are limited to the modes shown in FIG. It can be provided at a predetermined position according to the nature of the part.

  FIG. 2 is a block diagram showing a specific configuration of the living room master unit 2 in the television door phone apparatus according to the embodiment of the present invention.

  2 includes a master speaker 200, a master microphone 201, an operation unit 202, a human sensor 203, an emergency light 204, a monitor 205, an LED 206, an illuminance sensor 207, and a call circuit 208. A power failure detection circuit 209, a power supply circuit 210, a control circuit 211, and first to third interfaces (hereinafter referred to as a slave unit I / F, a sensor side I / F, and a power supply side I / F, respectively). ) 212, 213, and 214, and first to third line connection terminals (hereinafter referred to as slave unit connection terminals, sensor connection terminals, and power supply connection terminals) 215, 216, and 217, respectively.

  In this living room main unit 2, the monitor 205 includes a display surface 205a on which the above-described various displays are performed, and a backlight 205b that is provided below the display surface 205a and irradiates the display surface from the back side. It has been.

  The call circuit 208 is a 4-line / 2-line conversion for a voice signal that is input / output by the master microphone 201 and the master speaker 200 (transmitted voice, received voice) and processed into an electrical signal. This is for performing line / 4-line conversion, amplification, and the like.

  The power failure detection circuit 209 monitors the presence or absence of power supply from the commercial power source 4 applied to the power connection terminal 217, and detects the time of energization or power failure based on the voltage level of the applied voltage. .

  When the power supply circuit 210 is energized to be detected by the power failure detection circuit 209, the DC power source that rectifies / smooths the power supply from the commercial power source 4 and the constituent parts of the room master unit and the constituent parts of the entrance cordless handset 1 In the case of a power failure, the power supply unit 204a configured integrally with the emergency lighting lamp 204 is pre-charged with respect to the DC power source. It is for supplying to each part / circuit.

  The control circuit 211 is for controlling each component / circuit of the room master unit.

  The handset side I / F 212 is for forming a signal / data transmission path and a power supply path between the control circuit 211 and the handset connection terminal 215, respectively. The handset connection terminal 215 has a handset line L1. Is connected.

  The sensor side I / F 213 is for forming a signal / data transmission path between the control circuit 211 and the sensor connection terminal 216, and a sensor line L 2 is connected to the sensor connection terminal 216.

  The power supply side I / F 214 is for forming a power supply path between the power supply connection terminal 217 and the power failure detection circuit 209 and a power supply path between the power supply connection terminal 217 and the power supply circuit 210, respectively. A power line L3 is connected to 217.

  In the TV door phone apparatus according to the embodiment of the present invention configured as described above, a specific operation will be described below.

  In the TV door phone apparatus shown in FIGS. 1 and 2, a visitor at the entrance operates the call button 100 of the entrance handset 1 and controls the control circuit 211 of the room base station 2 that detects this call operation. An operation for emitting a ringing tone or a voice message from the machine speaker 200 and an operation for displaying a character message or picture data indicating that there is a call on the monitor 205 (display surface 205a thereof), that is, a call notification operation, an entrance The resident who confirmed the operation of displaying the image captured by the camera 101 of the slave unit 1 on the monitor 205 (display surface 205a) of the master unit 2 and the call from the visitor uses the operation unit 202. A response operation is performed, and the slave unit microphone 102, the slave unit speaker 103, the master unit speaker 200, and the master unit microphone 2 are controlled by the control circuit 211 that detects the response operation. The operation to establish a call by transmitting and receiving audio signals to and from the 1, since it is known technology in various intercom device installed in single-family houses, these operations description will be omitted.

  In FIG. 2, the power failure detection circuit 209 of the living room master unit 2 monitors the presence or absence of power supply from the commercial power source 4 applied to the power connection terminal 217, and the detected applied voltage level is equal to or higher than the threshold level. If it is, it is determined that it is energized and an energization signal is sent to the control circuit 211. On the other hand, if the detected voltage level of the applied voltage is less than the threshold level, it is determined that a power failure has occurred, and a power failure signal is sent to the control circuit 211.

  Here, the control circuit 211 that has detected the energization signal from the power failure detection circuit 209 of the living room master unit 2 controls the power supply circuit 210 to convert the DC power supply rectified / smoothed with respect to the power supply from the commercial power supply 4. It is possible to charge the power storage unit 204a integrally formed with the emergency illumination lamp 204 that is detachably attached to the living room master unit. In addition, the DC power rectified / smoothed by the power supply circuit 210 is not only supplied to each component / circuit of the living room master unit and becomes an operation power source, but also the control circuit 211, the slave unit side I / F 212, the slave unit Via the machine connection terminal 215 and the handset line L1, the components / circuits of the entrance handset 1 are supplied to be an operation power source. The power storage unit 204a is fully charged when energized.

  On the other hand, the control circuit 211 that detects the power failure signal from the power failure detection circuit 209 of the living room master unit 2 uses the DC power source pre-charged in the power storage unit 204a formed integrally with the emergency lighting lamp 204 as the operation power source. Emergency lighting can be turned on. In addition, the DC power previously charged in the power storage unit 204a is not only supplied to the constituent units / circuits of the room master unit and becomes an operation power source, but also includes a control circuit 211, a slave unit side I / F 212, a slave unit. The power is supplied to the constituent parts / circuits of the entrance slave unit 1 via the connection terminal 215 and the slave unit line L1 to be an operation power source.

  In addition, the control circuit 211 of the living room master unit 2 monitors the remaining amount of the DC power source charged in advance in the power storage unit 204a configured integrally with the emergency lighting lamp 204. An indication can be made using the LED 206. For example, when the monitor 205 is used, the remaining amount of DC power is displayed on the display surface 205a as an indicator. On the other hand, when the LED 206 is used, the LED 206 can be blinked / lighted with a luminescent color corresponding to the remaining amount of the DC power supply.

  Further, when the emergency lighting lamp 204 is removed from the living room master unit 2 at the time of the energization or power failure described above, the DC power source charged in advance in the power storage unit 204a becomes the operating power source, and the emergency lighting lamp can be turned on. . According to this aspect, the emergency lighting lamp 204 can be used as a flashlight.

  Further, the control circuit 211 of the room master unit 2 that detects a call from the entrance slave unit 1 (not described in detail) at the time of energization or power failure as described above is detachably attached to the room master unit. It is also possible to make a call notification by turning on the emergency lamp 204. Note that the resident can use the operation unit 202 to set whether or not to turn on the emergency lamp 204 as a call notification as necessary.

  According to the operations described above, regardless of whether or not a resident is present in the dwelling unit, the operation power sources of the front cordless handset 1 and the room base unit 2 at the time of a power failure are the emergency lighting lamps 204. For example, when the resident is absent, the operation of turning on the emergency indicator lamp 204 may result in wasteful power consumption. It was. In order to eliminate this, the power failure detection circuit 209 determines that it is energized, and only when the presence sensor 203 senses the presence of a resident in the vicinity of the living room base unit 2, the power failure detection circuit 209 The emergency indicator lamp 204 is turned on under the control of the control circuit 211 that detects the energization signal and the sense signal from the human sensor 203, while the power failure detection circuit 209 determines that the energization is in progress and the energization signal is detected. Even in this case, if the sense signal from the human sensor 203 cannot be detected, the emergency indicator lamp 204 can be controlled to be turned off. By this control, wasteful power consumption due to power supply from the power supply circuit 210 is suppressed, and power saving is achieved. Note that the resident can use the operation unit 202 to set whether or not to turn on the emergency illumination lamp 204 based on whether or not the human sensor 203 senses a human body.

  Next, when a security abnormality such as gas leakage or fire is detected by the security sensor 3 at the time of energization or power failure, the security abnormality signal generated by the security sensor 3 is sent to the sensor line L3, the room. The data is transmitted to the control circuit 211 via the sensor connection terminal 216 and the sensor side I / F 213 of the base unit 2.

  When the control circuit 211 of the base unit 2 detects the security abnormality signal from the security sensor 3, the control unit 211 causes the main unit speaker 200 to sound an alarm sound or a voice message indicating the content of the security abnormality as an emergency report / display. A text message or picture data indicating the contents of the security abnormality is displayed on the monitor 205 (display surface 205a), and the emergency light 204 is blinked / lighted at a predetermined light emission interval indicating the contents of the security abnormality. Can do. Note that the control circuit 211 can also sound an alarm sound or a voice message indicating the contents of the security abnormality from the handset speaker 103 of the entrance handset 1.

  According to the operations described above, the control circuit 211 of the parent room 2 that has detected the security abnormality signal from the security sensor 3 regardless of whether the power is on or at the time of power failure, The lamp 204 and the monitor 205 are used to perform a predetermined emergency alert / display. However, in the event of a power failure, the power storage unit 204a that is configured to be constant in the emergency lighting lamp 204 requires a DC power source that is pre-charged. In addition, the power consumption is greater than that during energization, and the power storage unit 204a is loaded. Therefore, if the remaining amount of the DC power supply is small, there is a possibility that the predetermined alarm generation / display cannot be performed. In order to solve this problem, the resident checks the monitor 205 (display surface 205a) and / or the LED 206 on which the remaining amount is displayed under the control of the control circuit 211, and, for example, a sufficient DC power supply when energized. It is desirable to charge the power storage unit 204a in advance.

  Next, the illuminance sensor 207 of the living room master unit 2 monitors the brightness in the dwelling unit, and sends an illuminance signal having a voltage level corresponding to the detected brightness to the control circuit 211.

  Here, at the time of the energization described above, the control circuit 211 that detects that the interior of the dwelling unit is dark like the nighttime and the voltage level of the illuminance signal from the illuminance sensor 207 of the living room master unit 2 is less than the threshold level is the power supply circuit 210. The DC power source rectified / smoothed with respect to the power supply from the commercial power source 4 can be supplied to the emergency lighting lamp 204 to light the emergency lighting lamp. According to this aspect, the emergency illumination lamp 204 can be used as a night illumination lamp, and safety in the nighttime zone is ensured.

  In addition, when the emergency lighting lamp 204 is used as a night lighting lamp, when the emergency lighting lamp 204 is removed from the living room master unit 2, the operation power supply for turning on the emergency lighting lamp 204 is supplied from the power supply circuit 210. It is cut off and switched to power supply from the power storage unit 204a.

  In addition, even during the energization described above, when the voltage level of the illuminance signal from the illuminance sensor 207 of the living room base unit 2 is equal to or higher than the threshold level as in the daytime, the control that detects this is performed. Since the circuit 211 holds the emergency illumination lamp 204 in a non-lighted state, wasteful power consumption due to power supply from the power supply circuit 210 is suppressed, thereby saving power.

  On the other hand, at the time of the power outage described above, the interior of the dwelling unit is dark like the nighttime zone, and the voltage level of the illuminance signal from the illuminance sensor 207 of the living room base unit 2 is less than the threshold level, and the dwelling unit is bright like the daytime zone. Regardless of the mode in which the voltage level of the illuminance signal from the illuminance sensor 207 of the living room master unit 2 is equal to or higher than the threshold level, the control circuit 211 that detects this maintains the emergency lamp 204 unlit. Therefore, useless power consumption due to power supply from the power storage unit 204a is suppressed, and power saving is achieved.

  Next, at the time of the energization or power failure described above, the interior of the dwelling is bright as in the daytime period, and the voltage level of the illuminance signal from the illuminance sensor 207 of the living room base unit 2 is greater than or equal to the threshold level. The control circuit 211 that detects a call from (not described in detail) emits a ringing tone, a voice message, and the like from the main unit speaker 200, and also turns on the backlight 205b of the monitor 205 to turn on the visitor. A character message indicating that there is a call from the user, picture data, and the like and an image captured by the camera 101 can be displayed on the display surface 205a.

  On the other hand, at the time of the energization or power failure described above, the interior of the dwelling unit is dark like the nighttime, and the voltage level of the illuminance signal from the illuminance sensor 207 of the living room master unit 2 is less than the threshold level. The control circuit 211 detects the call (not detailed). The control circuit 211 emits a ring tone, a voice message, and the like from the parent speaker 200, and also turns off the backlight 205b of the monitor 205 from the visitor. Can be displayed on the display surface 205a. By this control, for example, it is possible to prevent an uncomfortable display for a sleeping resident such that a visitor's face is suddenly displayed in a dark dwelling unit, and the resident can identify the visitor.

  In order to turn on the backlight 205b of the monitor 205 that is turned off under the control of the control circuit 211 of the living room base unit 2, whether or not the illuminance level detected by the illuminance sensor 207 is less than the threshold level is determined. Regardless, the backlight 205b can be turned on (manually) by the control of the control circuit 211 that detects the operation of the operation unit 205 by the resident. Similarly, the backlight 205b can be turned on (automatically) under the control of the control circuit 211 that detects the sensing signal from the human sensor 203.

  In the television door phone apparatus of the present invention, the entrance cordless handset installed at the entrance is described as one entrance cordless handset 1 and the room base phone installed in the dwelling unit is described as one room base phone 2. It is not limited to. For example, the same effect can be obtained even in the case where a plurality of entrance slave units and a plurality of living room master units are provided. Also, the security sensor 3 is not limited to one, and a plurality of security sensors can be provided.

  Further, in the TV door phone device of the present invention, the power supply source for supplying power to the constituent parts / circuits of the living room master unit 2 and the constituent parts / circuits of the entrance cordless handset 1 when energized is the commercial power source 4, and The power supply source that supplies power to each component / circuit of the machine 2 and each component / circuit of the entrance cordless handset 1 is applied to two different power supply sources, such as the power storage unit 204a configured integrally with the emergency lighting lamp 204. However, the present invention is not limited to this. For example, by providing an auxiliary power source such as a solar cell that generates and charges electric power according to sunlight irradiated on the roof of the dwelling unit in the dwelling unit and / or the living room base unit 2, as compared with the above-described embodiment. The life of power supply can be extended.

  The television doorphone device of the present invention has been described with a specific embodiment. However, the present invention is not limited to this embodiment, and as long as the effects of the present invention are obtained, the television doorphone device of any configuration known so far can be used. It goes without saying that even if there is, it can be adopted.

BRIEF DESCRIPTION OF THE DRAWINGS The system explanatory drawing which shows the whole structure of the television door phone apparatus by the Example of this invention. The block diagram which shows the concrete structure of a living room main | base station in the television door phone apparatus by the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Entrance cordless handset 101 ... Camera 2 ... Living room master 202 ... Operation part 203 ... Human sensor 204 ... Emergency light 204a ... Power storage part 205 ... Monitor (remaining electric power display part)
205b …… Backlight 206 …… LED (Remaining power display)
207 …… Illuminance sensor 209 …… Power failure detection circuit 211 …… Control circuit 4 …… Commercial power supply (AC100V)

Claims (8)

A main unit (1) having a camera (101) installed at the entrance and a monitor (205) for displaying an image captured by the camera of the entrance unit installed in a dwelling unit ( 2)
The living room base unit monitors the power storage unit (204a) charged with a DC power source by the power supply from the commercial power source (4) and the presence / absence of power supply from the commercial power source, and detects the time of energization or power failure. A power failure detection circuit (209), and an emergency illumination lamp (204) that is lit by supply of DC power from the power storage unit when the power failure detection circuit detects the time of the power failure. TV door phone device.   The television door phone device according to claim 1, wherein the emergency illumination lamp is configured integrally with the power storage unit and is detachably attached to the living room base unit.   The television door phone apparatus according to claim 1 or 2, wherein the entrance slave unit and the living room master unit are operated by supplying DC power from the power storage unit during the power failure.   When the energization is detected by the presence sensor (203) for detecting the presence or absence of a human body and the power failure detection circuit, the presence sensor detects the presence of the human body. 4. The control circuit according to claim 1, further comprising: a control circuit configured to turn on the emergency indicator lamp and control to turn off when the presence of the human body is not detected. 5. The TV door phone device according to 1.   The said living room main | base station is provided with the electric power residual amount display part (205,206) for displaying the residual amount of DC power supply in the said electrical storage part, The any one of Claims 1 thru | or 4 characterized by the above-mentioned. The described television door phone device.   The living room master unit includes an illuminance sensor (207) for detecting the brightness in the dwelling unit, and the emergency illumination lamp at night when the illuminance sensor determines that the illuminance sensor is less than a certain illuminance during energization. The television door phone device according to any one of claims 1 to 5, further comprising a control circuit (211) for controlling lighting as an illumination lamp.   The living room master unit includes a backlight (205b) on the monitor, and controls the lighting of the backlight when a call is made from the entrance slave unit and the illuminance sensor detects that the illuminance is equal to or higher than a certain level. And a control circuit (211) for controlling the backlight to be turned off when there is a call from the entrance cordless handset and the illuminance sensor detects that the illuminance is less than a certain illuminance, and detection of the illuminance sensor The television door phone device according to claim 6, further comprising an operation unit (202) for manually turning on the backlight regardless of presence or absence. The living room master unit includes a backlight (205b) on the monitor, and controls the lighting of the backlight when a call is made from the entrance slave unit and the illuminance sensor detects that the illuminance is equal to or higher than a certain level. In addition, when there is a call from the entrance cordless handset and the illuminance sensor detects that the illuminance is less than a certain illuminance, the backlight is turned off and the human sensor detects the presence of the human body. The television door phone device according to claim 6, further comprising a control circuit (211) for controlling lighting.

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