JP2007104015A - Intercom system with crime prevention function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To monitor the periphery of a building, a parked vehicle, the inside of an elevator, or the like without any complicated wiring by utilizing a recording function of an intercom device effectively. <P>SOLUTION: In the intercom device 1, call can be made mutually between an intercom master 2 and an intercom slave 3, and the intercom master 2 has a recording function for recording an image photographed by a camera unit 4. The intercom device 1 is connected to a communication master 5 for receiving a radio signal sent from a communication slave 6 connected to a sensor 7, the camera unit 4 is operated by the abnormality detection signal of the sensor 7, and the image photographed by the camera unit 4 can be recorded by the intercom master 2. The sensor 7 is installed at a place to be monitored, such as the inside and outside of a house, and the inside of the parked vehicle, with the communication slave 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an intercom apparatus having a crime prevention function, and more particularly, to an interphone system with a crime prevention function that facilitates operations such as a security sensor to be assembled to an interphone apparatus, a transfer of a camera linked to the sensor, and the addition of the number of cameras.

Conventionally, there has been known a security system in which a surveillance camera is installed in a place requiring monitoring such as an outdoor parking lot, an indoor parking lot, an elevator, etc., and images taken by the surveillance camera are monitored in a management room or each room. Yes.
For example, as described in Patent Document 1, when a sensor detects an abnormality, an interphone device with a crime prevention function in which a camera automatically operates, or as disclosed in Patent Document 2, a sensor of a wireless transmitter detects an abnormality. There has been proposed a wireless intercom apparatus in which a predetermined notification means operates in a wireless receiver when detected.

The intercom apparatus with a crime prevention function described in Patent Document 1 is capable of monitoring and recording video captured by the camera by operating the camera of the front door unit with an abnormal signal of a sensor connected by a communication line.
The wireless intercom device described in Patent Document 2 receives signals transmitted from a plurality of wireless transmitters having different functions, and operates notification means corresponding to each function. As a sensor is included.

JP 2003-346259 A JP-A-11-161858

In the intercom device with a crime prevention function described in Patent Document 1, not only wiring for connecting the sensor with a communication line is necessary, but the monitoring area is limited to a range that can be photographed by the camera of the entrance unit. To monitor vehicles that are out of the field of view, such as those that are stopped in garages or parking lots, a separate security device must be installed.
Moreover, although the wireless intercom apparatus described in Patent Document 2 does not require wiring, it extends from a call button installed at the entrance to a call button installed on a bathroom or a dining table, or a sensor installed on a ceiling or wall. Until then, a dedicated transmitter is required for each of the distributedly arranged call buttons and sensors.

  The present invention is an intercom system with a crime prevention function that is effective for expanding a monitoring area including a vehicle, and has a configuration in which a communication slave unit to which an abnormality detection sensor is connected and a camera unit are connected, and the camera unit The communication slave unit communicates a detection signal for operating the camera unit at least when an abnormality is detected by the sensor between the communication master unit connected to the interphone device having a function capable of recording the video shot in It is possible to automatically transmit to the master unit by wireless means, and the communication master unit and the intercom apparatus each include at least an external output I / F and an external input I / F for transmitting and receiving a detection signal.

  The communication slave unit is connected to a plurality of sensors for one communication slave unit, the camera unit is incorporated in the interphone slave unit of the intercom device, or the notification means is connected to the communication slave unit. In addition, a signal for operating the notification means can be sent from the communication master unit to the communication slave unit, or a signal sent from the external output I / F provided in the communication master unit is provided in the interphone master unit of the interphone device. An external input I / F provided in the camera unit receives signals from the external input I / F and allows the camera unit to operate in the interphone master unit or a signal transmitted from the external output I / F provided in the communication master unit. And the camera unit can control the operation of the intercom device.

  Also, the communication slave unit is provided with a camera selection function for designating a camera unit to be operated corresponding to the connected sensor, or the communication master unit is operated corresponding to the sensor connected to the communication slave unit. A camera selection function for designating a camera unit can be provided.

  Furthermore, the communication master has a reception sensitivity detection unit in the first case, and the reception sensitivity received by the reception sensitivity detection unit is received as a second case or when the reception sensitivity is outside a predetermined threshold. A demodulator that demodulates the radio wave, and a signal discriminator that discriminates whether or not the signal demodulated by the demodulator is designated, and if the signal discriminated by the signal discriminator is not designated, the camera unit Can be made to work.

According to the first aspect of the present invention, the communication slave unit to which the sensor is connected can automatically transmit a detection signal for operating the camera unit to the communication master unit by wireless means. And an interphone device with a recording function provided with an external output I / F and an external input I / F for transmitting and receiving a detection signal, respectively, so that if the sensor detects an abnormality, the detection signal is transmitted by wireless means to the interphone device. The video taken by the camera unit based on the signal is recorded.
In addition, since wireless means are used, no wiring is required and there is no possibility of interference due to the disconnection of the transmission line.

According to the invention of claim 2, the communication slave unit collectively manages the detection signals of a plurality of sensors connected to the communication slave unit, and if one of the sensors detects an abnormality, the signal is automatically transmitted immediately. Therefore, the crime prevention area can be expanded by disperse and install a plurality of sensors connected to one communication cordless handset.
According to the third aspect of the present invention, since the camera incorporated in the intercom slave can be used for monitoring, a camera unit for the monitoring area at the entrance is not required, and a system can be constructed at low cost.
Furthermore, according to the invention of claim 4, by providing the communication slave unit with a notification means, when the suspicious person is confirmed simultaneously with the transmission of the detection signal or in the video, the signal is transmitted from the communication master unit and the notification means is provided. The suspicious person can be repelled by operating.

According to the fifth aspect of the invention, since the operation of the camera unit can be controlled by the interphone master unit that has received the detection signal, it becomes possible to grasp the detailed situation by zooming up or changing the angle. According to this, since the camera unit is installed at a position overlooking the sensor, the distance between the communication master unit connected to the camera unit and the communication slave unit connected to the sensor is reduced, and a good reception state is maintained. be able to.
According to the seventh aspect of the present invention, since the camera selection function is provided in the communication slave unit, the camera unit to be operated corresponding to each sensor is designated and the place where the sensor is installed can be reliably photographed. Even if a suspicious person moves, the operation of the camera unit can be switched following the new detection signal, and the video shot at the best position can be recorded.
Furthermore, according to the eighth aspect of the present invention, since the camera selection function is provided in the communication master unit, it is possible to efficiently use only one communication master unit without connecting a dedicated communication master unit for each camera unit. A plurality of camera units can be operated.

According to the invention of claim 9, if the communication base unit operates the camera unit when the reception sensitivity is outside the predetermined threshold, the radio interference is intentionally caused from the projected image to prevent crime. An abnormal situation that disables the function can be immediately confirmed, and an appropriate action can be promptly taken.
Further, in the invention of claim 10, as in the case of claim 9, it is possible to determine whether or not there is an abnormal situation, and if no abnormality is confirmed from the image, the cause of radio wave interference, battery exhaustion, etc. can be considered.

An intercom system with a crime prevention function according to the present invention will be described with reference to the drawings.
FIG. 1 shows the simplest embodiment, and 1 is an interphone device that enables dialogue between an interphone master unit 2 installed indoors and an interphone slave unit 3 installed at a front door or the like. Yes, a camera unit 4 for photographing an outdoor situation is connected to the intercom apparatus 1.
The intercom base unit 2 is equipped with a recording function for recording video taken by the camera unit 4.

7 is a sensor that is installed outdoors and detects an abnormality of intrusion of a suspicious person. The sensor 7 is connected to a communication slave 6 that transmits a detection signal of the sensor 7 by wireless means. A signal transmitted from the communication slave unit 6 is received by the communication master unit 5 installed indoors.
Further, the communication master unit 5 includes an external output I / F 5a, and the interphone master unit 2 includes an external input I / F 2a. For example, a relay make signal transmitted from the external output I / F 5a of the communication master unit 5 is provided. The external input I / F 2a of the intercom base unit 2 is used for reception.

  The interphone base unit 2 has a built-in program for sending a camera operation signal to the camera unit 4 and recording a video signal from the camera unit 4 for a certain time when a relay make signal or the like is received at the external input I / F 2a. It is.

  According to the intercom system configured as described above, if the camera unit is set facing the detection area of the sensor, the video of the suspicious person detected by the sensor is automatically recorded. It is a proof that it doesn't move, and it has a wide range of uses, such as monitoring visitor records and family behavior.

  In this embodiment, the combination of one sensor and one camera unit has been described. However, a plurality of sensors are arranged in the field of view of the camera unit, and the plurality of sensors are connected to one communication slave unit. Therefore, if any one sensor detects it, the camera can be operated, so it is possible to cover the entire wide detection area with only one communication cordless handset. If sensors of different detection targets such as temperature are connected, it can be applied not only to the intrusion of suspicious persons but also to theft of vehicles, discovery of suspicious fires, and the like.

Moreover, in the intercom apparatus in which the intercom slave unit includes a camera, the intercom slave unit camera may be used as a camera unit, and the communication slave unit is connected to a sensor that monitors the entrance. Just keep the front door in a monitoring position.
Furthermore, the communication slave unit can be provided with a notification means such as a buzzer, and when transmitting an abnormality detection signal of the sensor, if a suspicious person is repulsed by notifying an alarm sound or if the sensor detects an abnormality, Sending a detection signal to record the video by operating the camera unit, and if the video recording is not being done or if the video recording is not finished, it will leave by sending a signal from the communication master and operating the notification means Can be encouraged.

  In this embodiment, a signal transmitted from an external output I / F provided in a communication master is received by an external input I / F provided in an interphone master of the interphone device, and the operation of the camera unit is performed by the interphone master. Since it is designed to control, there is a merit that it is possible to grasp the outdoor situation while staying by changing the zoom-up or changing the angle. However, as shown in FIG. If the signal transmitted from the external output I / F 5a is received by the external input I / F 4a provided in the camera unit 4 and the operation of the intercom device is controlled by the camera unit 4, the communication connected to the camera unit is performed. The radio wave arrival distance from the master unit to the communication slave unit connected to the sensor is shortened, and communication failure is unlikely to occur.

Moreover, in a form in which a plurality of sensors and camera units are used, every time one of the sensors reacts, all the camera units operate at the same time, and it is confusing to take even unnecessary images. Therefore, it is desirable to designate a camera unit corresponding to each sensor for each sensor.
In that case, since it is possible to shoot the same place with a plurality of camera units from different angles, a monitor capable of multi-display and a function of simultaneously recording a plurality of images can be provided in the intercom master unit.
The camera selection function for selecting the camera unit to be specified can be provided in the communication slave unit or the communication master unit. If the camera selection function is provided in the communication slave unit, the distance from the sensor is close and there is a risk of communication failure. Therefore, even if a suspicious person moves, the camera unit's operation is switched according to the detection signal to capture the best position. If the camera selection function is provided in the intercom master unit, even when using multiple camera units, there is no need to connect a dedicated communication master unit for each camera unit. It can be covered by a single communication base unit.

  Further, the communication master unit is provided with a reception sensitivity detection unit as the first case, and when the reception sensitivity received by the reception sensitivity detection unit is outside a predetermined threshold, the camera unit is operated as the second case. A program for demodulating, a demodulator for demodulating the received radio wave, and a signal discriminator for discriminating whether or not the signal demodulated by the demodulator is specified, and the signal discriminated by the signal discriminator was not specified In this case, a program for operating the camera unit can be incorporated.

By incorporating such a program, it is possible to check the recorded video, and it is an abnormal situation where a suspicious person tried to interfere with a communication cordless handset or sensor, possibly due to a line abnormality such as radio wave interference or battery exhaustion. A clear judgment can be made.
The monitoring area is not limited to the outdoors, but includes indoor parking lots, stair landings, and elevators, and sensors and camera units are installed in these monitoring areas.

In the present invention, the minimum requirement is that communication between the communication slave unit and the communication master unit is possible at least from the communication slave unit side to the communication master unit side, and a notification means or the like is connected to the communication slave unit. In this example, transmission / reception can be performed between the communication master unit and the communication slave unit.
The signal sent from the external output I / F to the external input I / F is not limited to the relay make signal, and the external output I / F and the external input I / F are connected by serial communication such as USB. be able to.

It is explanatory drawing of the intercom system with a crime prevention function which concerns on this invention. It is explanatory drawing of the example of an intercom system change with a crime prevention function.

Explanation of symbols

  1. ・ Interphone device, 2. ・ Interphone master unit, 2a ・ ・ External input I / F, 3. ・ Interphone slave unit, 4. ・ Camera unit, 4a ・ ・ External input I / F, 5. ・ Communication master unit 5a..External output I / F, 6..Communication slave unit, 7..Sensor.

Claims (10)

Between the communication slave unit to which the sensor for abnormality detection is connected and the communication master unit to which the camera unit is connected and connected to the interphone device having a function capable of recording the video imaged by the camera unit,
The communication slave unit can automatically transmit a detection signal for operating the camera unit to the communication master unit by wireless means when at least the sensor detects an abnormality,
The intercom system with a crime prevention function, wherein the communication base unit and the interphone device each include at least an external output I / F and an external input I / F for transmitting and receiving the detection signal. The intercom system with a crime prevention function according to claim 1, wherein a plurality of sensors are connected to the communication slave unit with respect to one communication slave unit. The intercom system with a crime prevention function according to claim 1 or 2, wherein the camera unit is incorporated in an interphone slave unit of the interphone device. The intercom system with a crime prevention function according to any one of claims 1 to 3, wherein a notification unit is connected to the communication slave unit and a signal for operating the notification unit can be transmitted from the communication master unit to the communication slave unit. . The signal sent from the external output I / F provided in the communication base unit is received by the external input I / F provided in the interphone base unit of the interphone device, and the operation of the camera unit is controlled by the interphone base unit. The intercom system with a crime prevention function according to any one of claims 1 to 4. The signal transmitted from the external output I / F provided in the communication base unit is received by the external input I / F provided in the camera unit, and the operation of the intercom apparatus is controlled by the camera unit. Item 5. An interphone system with a crime prevention function according to any one of Items 4 to 5. The intercom system with a crime prevention function according to any one of claims 1 to 5, wherein the communication slave unit is provided with a camera selection function for designating a camera unit to be operated in accordance with a connected sensor. The intercom with a crime prevention function according to claim 6, wherein a camera selection function for designating a camera unit to be operated corresponding to a sensor connected to the communication slave unit is provided in the communication master unit. The communication master has a reception sensitivity detector,
The crime prevention function according to any one of claims 1 to 8, wherein the camera unit is operated when a reception sensitivity received by the reception sensitivity detection unit is outside a predetermined threshold value. Intercom system with. The communication base unit includes a demodulation unit that demodulates received radio waves, and a signal determination unit that determines whether or not a signal demodulated by the demodulation unit is designated,
The intercom system with a crime prevention function according to any one of claims 1 to 9, wherein the camera unit is operated when a signal determined by the signal determination unit is not specified.

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