JP2006279789A - Apartment building interphone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect a signal level of an image signal, etc. outside of a sitting room. <P>SOLUTION: An apartment building interphone system comprises a plurality of sitting room masters 2, 2,... which are installed in the sitting room, and in which a resident takes an image of an image signal of a visitor in response to a call from a meeting porch apparatus for confirmation, to make a telephone call; and a controller 4 for controlling the meeting porch apparatus and the plurality of sitting room masters when a date signal, a telephone call signal and/or the image signal of the call and telephone call are modulated for transmission. The sitting room master comprises a level detection circuit 25 for detecting an image signal level, and a CPU 24 for transmitting the detected image signal level to a transmission path along with a sitting room number ID. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apartment house intercom system, and more particularly to an apartment house intercom system capable of detecting a signal level such as a video signal outside a living room.

  Conventionally, as this type of multi-family intercom system, a multi-entry unit installed at the entrance of a multi-family house, a visitor calling a resident, imaging the visitor and outputting a video signal, and a resident installed in a living room Consisting of a plurality of living room base units that make a call by confirming a video signal of a visitor in response to a call from the central entrance unit, and a control device that controls the collective entrance unit and the plurality of room base units Is known (see, for example, Patent Document 1).

  By the way, in the apartment house intercom system having such a configuration, since the arrival level of the video signal at the base unit is defined, it is necessary to adjust the level of the video signal at the time of construction or after construction.

  Conventionally, as such a video signal level adjustment, (a) a method in which a video signal level is measured in a room master set installed in each room and the video signal level is changed by the room master set (for example, Patent Document 2). (B) A method is known in which the data signal level of the transmission line connected to the living room master unit is detected, the detected data signal level is displayed on the management room master unit, and the transmission data level is automatically adjusted. (For example, refer to Patent Document 1).

JP-A-8-205135 (paragraph numbers “0011” to “0014”, FIG. 1) JP 2000-286984 A (paragraph numbers “0027” to “0032”, FIG. 1)

  However, in an apartment intercom system like (a), the video signal level is too low because the video signal level is amplified or attenuated by the variable gain adjuster installed in each monitor TV unit in each room. In some cases, even if the video signal level is amplified, the image quality becomes rough, and if the video signal level of the main line is too high, the waveform may be distorted. In the housing complex intercom system as shown in (b), since the signal level to be transmitted is estimated from the received data signal level, the transmission frequency band of the received data and the transmitted video signal is determined. If they are different, the attenuation level of the received data and the transmitted video signal will be different due to the frequency characteristics of the transmission line, the influence of the route such as the branching unit, the distributing unit, etc. There was a problem that it was not possible to grasp accurately. Further, even when the transmission frequency band of the received data and the transmitted video signal is the same, the direction of the signal is reversed, and thus there is a difficulty in that the attenuation amount cannot be specified accurately.

  The present invention has been made in order to solve such a problem, and a living room base unit is provided with a level detection circuit for detecting a signal level and a room number ID for the detected video signal level for the transmission path. In addition, the control device and level totalization device can centrally grasp the exact signal level at the base unit of the living room, and the validity of the wiring and the amplification level during and after construction. It aims at providing the collective housing intercom system which can confirm the nature easily.

  The present invention has been made to solve the above-mentioned problems, and the collective housing intercom system according to the first aspect of the present invention is installed at the entrance of a collective housing and a visitor calls a resident to image the visitor. And the entrance hall that outputs video signals, and is installed in the living room, connected to the entrance hall via a transmission line, and the resident displays the video signals of visitors in response to calls from the entrance hall A plurality of room base units that confirm and make a call, and a control device that controls the collective entrance unit and the plurality of room base units when modulating and transmitting a call, a call data signal, a call signal and / or a video signal The room master unit includes a level detection circuit that detects the video signal level and a CPU that transmits the detected video signal level to the control device with a room number ID assigned to the transmission path.

  According to a second aspect of the present invention, the collective housing intercom system according to the first aspect includes a level counting device that counts video signal levels transmitted from each room and received by the control device.

  According to a third aspect of the present invention, in the collective housing intercom system according to the second aspect, the level counting device includes a level display unit for collectively displaying video signal levels in a plurality of parent units. is there.

  According to a fourth aspect of the present invention, in the collective housing intercom system according to the second aspect or the third aspect, the control device is based on the video signal levels in the plurality of parent units that are totaled by the level totaling device. All living room master units are equipped with a modulation amplification circuit that performs level adjustment to give a level at which a video signal can be output.

  According to a fifth aspect of the present invention, in the collective housing intercom system according to any one of the second to fourth aspects, the control device transmits a test video signal requesting a video signal level to the room master unit. The room master unit detects the test video signal level of the test video signal with the level detection circuit, and the CPU attaches the room number ID to the transmission path to the detected test video signal level. The level totaling device receives the video signal level transmitted from each room master.

  According to a sixth aspect of the present invention, in the apartment house intercom system according to any one of the second aspect to the fifth aspect, the living room base unit detects the call signal level with a level detection circuit, and the CPU detects it. The call signal level is transmitted with a room number ID attached to the transmission line, and the level totaling apparatus receives the call signal level transmitted from each room master.

  According to a seventh aspect of the present invention, in the apartment house intercom system according to any one of the second to sixth aspects, the living room master detects the data signal level with a level detection circuit, and the CPU detects The data signal level is transmitted with a room number ID attached to the transmission line, and the level counting device receives the data signal level transmitted from each room master unit.

  As is apparent from the above description, the collective housing intercom system according to the first to seventh aspects of the present invention has the following effects.

  First, a common unit is provided by mounting a level detection circuit that detects a video signal level and a CPU that transmits the detected video signal level with a room number ID to the transmission path in the living room master unit. Therefore, it is possible to check the exact signal level at the base unit in the room, and also to check the validity of the wiring and the amplification level easily at the time of construction and after construction. Can adjust the signal level quickly.

  Secondly, by connecting a level counting device to the control device, it is possible to total the video signal levels in all living room master units.

  Thirdly, by installing the level display unit in the level counting device, it is possible to check the exact signal level of all the parent units at once, and check for wiring defects and insufficient output of the intermediate amplifier. be able to.

  Fourth, by mounting a modulation amplification circuit in the control device, level adjustment can be performed for each room, and an appropriate level can be output for each room.

  Fifth, by installing a test signal transmission circuit in the control device, it is possible to receive the video signal level at each parent device at a time, and as a result, an appropriate video signal level can be set regardless of time and climate. Obtainable.

Hereinafter, a preferred embodiment to which an apartment intercom system of the present invention is applied will be described in detail with reference to the drawings.
[Example 1]
FIG. 1 is a system configuration diagram of a collective housing intercom system according to a first embodiment of the present invention, FIG. 2 is a block diagram of a master unit in the same embodiment, and FIG. The block diagram of a machine and a level totalization device is shown.

  Referring to FIG. 1, a collective housing intercom system of the present invention is installed at a front door of a collective housing, a visitor calls a resident, images a visitor and outputs a video signal, and is installed in a living room. , And a plurality of room base units 2, 2,... That perform a call by confirming a video signal of a visitor in response to a call from the central entrance, a call, a data signal of a call, a call signal, and / or Alternatively, when the video signal is modulated and transmitted, the control device 4 that controls the collective entrance machine and the plurality of room base units, and the video signal level that is installed in the vicinity of the control device 4 and transmitted from each room and received by the control device Level totaling device 5 for summing up, management room base unit 6 installed in a management room, etc., and branch / distributor installed in the vicinity of each room (hereinafter referred to as “room side branch / distributor”) 7. And along the transmission path described later. Branch-distributor installed at intervals (hereinafter referred to as "transmission-line side branch-distributor".) And a 8 and a transmission signal amplifier 9. Here, the control device 4 passes through the first transmission path L1 to the collective entrance 1 and the second transmission path L2 to the plurality of transmission path side branch / distributors 8 via the third transmission path L3. The level totalization device 5 is connected to the management room master unit 6 via the fourth transmission line L4, and each transmission path side branch / distributor 8 is connected to the living room side branch / distributor 7 via the room side branch / distributor 7, respectively. 2 or other branch / distributor (not shown) is connected. A transmission signal amplifier 9 is connected between adjacent transmission path side branching / distributors 8.

  The plurality of living room master units 2, 2,... Have the same configuration, and as shown in FIG. 2, a master unit interface (hereinafter referred to as "I / F") 21, a master unit signal, respectively. A processing circuit 22, a monitor 23, a CPU (hereinafter referred to as “master CPU”) 24, a level detection circuit 25, a call circuit 26, a handset 27 and an ID setting circuit 28 are provided. Here, the base unit I / F 21 is connected to the base unit signal processing circuit 22, the base unit CPU 24, the level detection circuit 25, and the call circuit 26. The base unit CPU 24 includes the base unit signal processing circuit 22, the monitor 23, and the level detection. A circuit 25, a call circuit 26 and an ID setting circuit 28 are connected, and a handset 27 is connected to the call circuit 26.

  As shown in FIG. 3, the collective entrance machine 1 includes a camera 11 for imaging a visitor, a call operation unit 12 including a touch panel and a numeric keypad, a call button 13, a microphone 14, and a speaker 15.

  As shown in FIG. 3, the control device 4 includes first to fourth control devices I / Fs 41 a to 41 d, a CPU (hereinafter referred to as “control device CPU”) 42, a control device signal processing circuit 43, and a test signal transmission circuit. 44. Here, the control device CPU 42 is connected to the first to fourth control devices I / F 41a to 41d, the control device signal processing circuit 43, and the test signal transmission circuit 44, and the first control device I / F 41a has a second connection. Transmission line L2, second control device I / F 41b and test signal transmission circuit 44, second control device I / F 41b has third transmission line L3, and third control device I / F 41c has third transmission line L3. The four transmission lines L4 are connected to the control device signal processing circuit 43 and the first transmission line L1, respectively, to the fourth control device I / F 41d.

  As shown in FIG. 3, the level counting device 5 includes a counting device I / F 51, a CPU (hereinafter referred to as “counting device CPU”) 52, and a counting device display unit 53. Here, the aggregation device CPU 52 is connected to the aggregation device I / F 51 and the aggregation device display unit 53, and the third transmission path L3 is connected to the aggregation device I / F 51.

  Next, the operation of the thus constructed multi-dwelling house intercom system of the present invention will be described. In addition, (1) In order for a visitor to call a resident (hereinafter referred to as a “first resident”) in a room (hereinafter referred to as a “first resident room”) having a building A, for example, the collective entrance 1 The room number (hereinafter referred to as “first room number”) assigned in advance to the room base unit (hereinafter referred to as “first room base unit”) 2 installed in the first room by the call operation unit 12 When the call button 13 is pressed, a call signal containing the first room number is sent to the first transmission path L1, the control device 4, the second transmission path L2, and the first room base unit 2. Corresponding transmission line side branch / branch (hereinafter referred to as “first transmission line side branch / branch”) 8 and room side branch / branch (hereinafter referred to as “first room side branch / branch”) 7. Is transmitted to the first living room base unit 2 through this, so that a ringing tone is emitted from a speaker (not shown) of the first living room base unit 2. (2) When the first resident confirming the call from the visitor picks up the handset 27 and performs a response operation, the first resident is notified of the call from the visitor. Call of the first room base unit 2 through the first transmission line L1, the control device 4, the second transmission line L2, the first transmission line side branch / branch unit 8, and the first room side branch / branch unit 7 A call line is formed between the function and the call function of the collective entrance 1 and voice signals can be transmitted and received through the call line. (3) The visitor image captured by the camera 11 is The first transmission line L1, the fourth control device I / F 41d, the control device signal processing circuit 43, the control device CPU 42, the first control device I / F 41a, the second transmission line L2, and the first transmission are processed. Via roadside branch / branch 8 and first room-side branch / branch 7 Then, a monitor (hereinafter referred to as “first monitor”) is provided via the master unit I / F (hereinafter referred to as “first master unit I / F”) 21 of the first living room master unit 2 and the master unit video signal processing circuit 22. )), And the point that the video of the visitor is displayed on the first monitor 23 is the same as that of the conventional apartment house intercom system. Here, the description will focus on the operation of confirming the signal level of the video signal received by the first living room master unit 2 using the control device 4 or the level totaling device 5.

  First, a visitor image captured by the camera 11 is transmitted to the first master unit I / F 21 via the same route as the above-described video signal, and is transmitted via the first master unit I / F 21. The signal is transmitted to the level detection circuit (hereinafter referred to as “first level detection circuit”) 25 of the first master unit, and the first level detection circuit 25 detects the level of the video signal.

  The level of the detected video signal is assigned with the room number ID of the first room number (hereinafter referred to as “first room number ID”) in the ID setting circuit 28 under the control of the base unit CPU 24, and the first room. The video signal level to which the number ID is assigned is the first master unit I / F 21, the first room side branch / branch unit 7, the first transmission path side branch / branch unit 8, the second transmission path L 2, and the second transmission line L 2. 1 to the control device CPU 42 via the control device I / F 41a, and from the control device CPU 42 to the management room base unit 6 via the third control device I / F 41c and the fourth transmission path L4, or the fourth It is transmitted to the collective entrance machine 1 via the control device I / F 41d and the first transmission line L1.

  As described above, in this embodiment, it is possible to confirm the accurate signal level in the living room base unit on the display unit of the management room base unit 6 or the collective entrance.

  Next, an additional function of the apartment house intercom system of the present invention will be described.

  First, when the level totalization device 5 is connected to the control device 4, the received video signal level can be totalized by the level totalization device 5 as follows.

  That is, the video signal level related to the first room master unit 2 received by the control device 4 is controlled by the control device CPU 42, the second control device I / F 41 b, the third transmission path L 3, and the counting device I. / F51 and the totaling device CPU 52 to transmit to the totaling device display unit 53.

  Similarly, the video signal level detected by the level detection circuit 25 of the other room master unit 2 is also the room number of the other room base unit in the same manner as the video signal level related to the first room base unit 2 described above. The ID is attached and transmitted to the counting device display unit 53.

  As described above, in this embodiment, it is possible to cause the level counting device 5 to totalize the video signal levels in all the living room master units.

  Secondly, when the totaling device display unit 53 is installed in the level totaling device 5, the totaling device display unit 53 displays a list of the video signal levels in all the living room base units 2, so that the wiring failure or intermediate It is possible to confirm the output shortage of the amplifier. In other words, by displaying a list of video signal levels in all living room master units at the time of construction or after construction, if the video signal level in multiple living room master units is low, transmission path construction errors and intermediate amplifiers In addition, if the video signal level of a specific room master unit is low, it is possible to check for room wiring errors in the room base unit or product defects in the room base unit. it can.

  Thirdly, when the test signal transmission circuit 44 for transmitting the test video signal to each room master unit 2 is installed in the control device 5, the level totaling device 5 performs the following operation from each room base unit 2. The transmitted video signal level can be received. That is, under the control of the control device CPU 42, a test video signal requesting a video signal level is output from the test signal transmission circuit 44, and the test video signal is transmitted to the second transmission line L2, the transmission line side branch / distributor 8 and the room side. It is transmitted to each living room base unit 2 via the branch / distributor 7. The test video signal transmitted to each room master 2 is detected by the level detection circuit 25 of each room master 2 in the same manner as the video signal described above, and the test video signal level of each test video signal is detected. Under the control of the master CPU 24, each room number ID is added to the detected test video signal level and transmitted to the level counting device 5 via the same route as the video signal level described above.

In this embodiment, the video signal level at each parent device can be received at a time, so that an appropriate video signal level can be obtained without considering variations due to time and climate.
[Example 2]
FIG. 4 shows a block diagram of a control device, a collective entrance machine, and a level counting device of a collective housing intercom system in the second embodiment of the present invention. In the figure, parts common to those in FIG.

  In this embodiment, a modulation amplifier circuit 45 is mounted on the first control device I / F 41a shown in FIG.

  In this embodiment, the video signal level of the image taken by the camera 11 of the collective entrance 1 is detected by the level detection circuit 25, and the detected video signal level is controlled by the master CPU 24, as in the previous embodiment. Is attached to the room number ID and transmitted to the level counting device 5.

  The received video signal level is compared with the video signal level normally required in the level totaling device 5. If the received video signal level is smaller than the normally required video signal level, the level is summed up from the totaling device CPU52. An instruction signal is output, and this amplification instruction signal is transmitted to the modulation amplifier circuit 45 via the counting device I / F 51, the third transmission line L3, and the second control device I / F 41b. Thereby, the modulation amplification circuit 45 sets the amplification degree of the video signal for each room base unit 2 to be large.

  On the other hand, when the received video signal level is higher than the normally required video signal level, an attenuation instruction signal is output from the aggregation device CPU 52, and this attenuation instruction signal follows the same path as the amplification instruction signal described above. Then, the signal is transmitted to the modulation amplifier circuit 45. Thereby, the modulation amplification circuit 45 sets the degree of amplification of the video signal for each room master 2 small.

  In this embodiment, in the modulation amplification circuit 45, based on the video signal levels in a plurality of room base units counted by the level totalization device, level adjustment that gives a level at which video signals can be output in all the room base units Therefore, the level can be adjusted for each room, and an appropriate level video signal can be output for each room.

  Also in the second embodiment, similarly to the first embodiment, when the level totalization device 5 is connected to the control device 4, the received video signal level can be totalized by the level totalization device 5. In addition, when the totaling device display unit 53 is mounted on the level totaling device 5, the totaling device display unit 53 displays a list of the video signal levels in all the living room base units 2, so that wiring defects and intermediate Insufficient output of the amplifier can be confirmed, and when the test signal transmission circuit 44 for transmitting the test video signal to each room base unit 2 is installed in the control device 5, the video signal in each room base unit The level can be received at one time, and thus an appropriate video signal level can be obtained without considering variations due to time and climate.

  The present invention can be changed and modified as follows within the scope of the claims.

  1stly, in the above-mentioned Example, although the case where a control apparatus and a level totaling apparatus were comprised separately was described, you may comprise both apparatuses integrally.

  Secondly, in the above-described embodiment, the case where the level totaling device is connected to the control device is described. However, the level totaling device is connected to the management room base unit 6 or is integrated with the management room base unit. May be.

  Third, in the above-described embodiment, the case where the video signal level is detected is described. However, the call signal level and the data signal level are detected by the level detection circuit, and the detected call signal is detected in the same manner as the video signal level. The room number ID may be attached to the level or the data signal level and transmitted to the level counting device.

The system block diagram of the apartment house intercom system in 1st Example of this invention. 1 is a block diagram of a living room master in a first embodiment of the present invention. The block diagram of the control apparatus in the 1st Example of this invention, a collective entrance machine, and a level totalization apparatus. The block diagram of the control apparatus in the 2nd Example of this invention, a collective entrance machine, and a level totalization apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Collective entrance machine 2 ... Living room main machine 25 ... Level detection circuit 24 ... CPU (parent machine CPU)
DESCRIPTION OF SYMBOLS 4 ... Control apparatus 45 ... Modulation amplifier circuit 48 ... Test signal sending circuit 5 ... Level totaling apparatus 53 ... Level display part L1, L2 ... Transmission path

Claims (7)

A collective entrance machine (1) installed at the entrance of an apartment house, where a visitor calls a resident, images the visitor and outputs a video signal, and a transmission path (L1, L2) installed in the living room. ), And a plurality of living room base units (2, 2,...) In which the resident confirms the video signal of the visitor and makes a call in response to a call from the collective entrance machine. A control device (4) for controlling the collective entrance unit and the plurality of room base units in modulating and transmitting a data signal, a call signal and / or a video signal for a call and a call,
The living room master includes a level detection circuit (25) for detecting a video signal level, and a CPU (24) for transmitting the detected video signal level to the control apparatus with a room number ID assigned to the transmission path. An apartment intercom system characterized by comprising   The collective housing intercom system according to claim 1, further comprising a level totaling device (5) for totaling video signal levels transmitted from each room and received by the control device.   3. The collective housing intercom system according to claim 2, wherein the level totaling device includes a level display unit (53) for collectively displaying video signal levels in a plurality of living room master units.   The control device is a modulation amplification circuit that performs level adjustment to give a level at which the video signal can be output in all the living room parent devices, based on the video signal levels in the plurality of living room parent devices counted by the level counting device. 4. The collective housing intercom system according to claim 2, further comprising (45). The control device includes a test signal transmission circuit (44) for transmitting a test video signal requesting the video signal level to the living room master unit,
The living room base unit detects the test video signal level of the test video signal by the level detection circuit, and the CPU transmits the detected test video signal level with a room number ID to the transmission path, The collective housing intercom system according to any one of claims 2 to 4, wherein the level counting device receives a video signal level transmitted from each room master.   The room master unit detects a call signal level by the level detection circuit, the CPU transmits the detected call signal level with a room number ID to the transmission path, The collective housing intercom system according to any one of claims 2 to 5, wherein a call signal level transmitted from a living room master is received. The room master unit detects a data signal level by the level detection circuit, the CPU transmits the detected data signal level with a room number ID to the transmission line, and the level totalizing device The collective housing intercom system according to any one of claims 2 to 6, wherein a data signal level transmitted from a living room master is received.

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