JP6349266B2 - Intercom extension chime - Google Patents

Description

  The present invention relates to an interphone, and more particularly, to an interphone extension chime that is installed in a place where it is difficult to hear a ringing tone that is ringed by a parent unit in response to a call operation of a slave unit, and that a ringing tone is separately generated to notify a call from the slave unit.

  Conventionally, interphone master unit has been provided with an extension speaker terminal (or extension chime terminal) for connecting extension devices such as extension speakers and extension chimes. A chime was installed to make it easier to recognize calls from the slave units (see, for example, Patent Document 1).

JP-A-11-275241

The conventional additional speakers include a continuous ring type and an auto stop type. The continuous ring type continues to ring while the input signal continues. For example, in the case of setting to sound “ping-pong” once every 10 seconds, if the signal output continues for 60 seconds, “ping-pong” sounded 6 times.
On the other hand, the auto-stop type stopped the chime ringing for a certain time even if the input signal continued for a long time. However, when the input signal is interrupted and a new input signal is generated, the chime rings, which may be bothersome as in the continuous ring type.
In addition, when the extension chime is wireless and battery-driven, there is a problem that the battery life is shortened if the chime rings frequently.

  Therefore, in view of such a problem, the present invention does not perform a new call operation if there is a re-output within a certain time even if the call signal output from the additional speaker terminal of the interphone device is interrupted, The purpose is to provide an intercom extension chime that reduces the number of rings.

In order to solve the above-described problems, the invention of claim 1 is directed to an interphone slave unit for a visitor to call and talk, and an interphone master unit for reporting and answering a call from the interphone slave unit. An interphone expansion chime that is used by connecting to an additional speaker terminal provided in the interphone master unit of the interphone device comprising: a call control unit that sounds a ringing tone upon receipt of a call signal, and a ringing sound The longest call time or maximum number of calls for one call signal is set , and the call control unit sets the duration of the input call signal until the longest call time or maximum number of calls is reached. When the ringing of the ringing tone continues and the ringing signal is interrupted and the next ringing signal is input within a specific time, it is determined that the ringing is continuing. The paging control is continuously performed, and a new ringing tone is not generated.
According to this configuration, even if the call signal is interrupted, if the call signal is input again within a predetermined time, it is determined that the call signal continues, so the call is reset and a new call is started. There is nothing. Therefore, it is possible to prevent a state in which a ringing tone frequently sounds.

In addition, even if the duration of the call signal input to the extension chime is long, the ringing operation ends at a certain time or a certain number of times, so that even if the call signal is received for a long time, the ringing tone does not continue to ring. Power consumption can be reduced.

According to a second aspect of the present invention, in the configuration of the first aspect , the transmitter includes a transmitter connected to the interphone master unit, and a receiver that rings in response to a signal transmitted wirelessly from the transmitter. The unit is arranged in the transmitter.
According to this configuration, since the ringing of the extension chime is wirelessly controlled, the installation position can be easily changed and the convenience is improved, and power can be supplied from the intercom master unit to the call control unit. Even if a battery is used as the power source, power consumption can be suppressed.

  According to the present invention, even if the ringing signal is interrupted, if the ringing signal is input again within a predetermined time, it is determined that the ringing signal continues, so that the ringing is reset and a new ringing is started. It is possible to prevent a ringing sound from being frequently generated.

It is the block diagram which connected the intercom expansion chime which concerns on this invention to the intercom apparatus. It is a connection diagram of an intercom master and an extension chime. It is a time chart of a signal which shows operation of an extension chime. It is the connection diagram of a radio | wireless expansion chime and an intercom main | base station which shows the other form of an expansion chime.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram in which an interphone extension chime according to the present invention is connected to an interphone device. 1 is an interphone handset that is installed outside a house such as a front door so that visitors can call residents, and 2 is installed in the house. The interphone master unit 3 for responding to a call from the interphone slave unit 1 is an extension chime that rings in conjunction with the ringing operation of the interphone master unit 2. The extension chime 3 includes an extension speaker for reporting a ringing tone.

  The intercom slave unit 1 and the interphone master unit 2 are connected via a transmission line L1, and the interphone master unit 2 and the additional chime 3 are connected via a transmission line L2.

  The intercom handset 1 includes a call button 11, a microphone 12 and a speaker 13 for making a call, and a camera 14 for imaging a visitor. On the other hand, the intercom base unit 2 includes a call button 21 for responding to a call, a microphone 22 and a speaker 23 for making a call, a monitor 24 for displaying captured images of the camera 14, and an operation unit 25 for performing various operations. Have a connection terminal (not shown) for connecting the extension chime 3 to the main body.

  FIG. 2 shows a connection form between the interphone base unit 2 and the extension chime 3, and as shown in FIG. 2, the extension chime 3 rings an extension chime CPU 31 as a call control unit for controlling generation of a ringing tone. A speaker 32 as a sound report unit is provided inside, and a speaker input terminal 33 and a transfer input terminal 34 are provided.

  Further, as shown in FIG. 2, a speaker output terminal 27 as an additional speaker terminal provided in the interphone master unit 2 and a speaker input terminal 33 of the additional chime 3 are connected by a transmission line L2 composed of two lines. Note that the ringing of the extension chime 3 can also be achieved by connecting the message input terminal 34 of the extension chime 3 to the representative message output terminal 28 that outputs a call signal in a signal form different from that of the speaker output terminal 27 of the interphone master unit 2. Control is possible.

The operation of the additional chime 3 connected in this way will be described below. When the interphone handset 1 is called, a call signal is transmitted to the interphone base unit 2 and a ringing tone is generated by the interphone base unit 2. The calling mode at this time is set by the intercom base unit 2, and responds with a predetermined number of times (for example, two ping-pong sounds after a certain period of time) or a case where the ringing tone is sounded for a predetermined time. There is an infinite call that continues the call for a long time.
On the other hand, the extension chime 3 is set so that, for example, the call operation is performed a predetermined number of times (for example, three times in 60 seconds), but the call operation is not continued even if the call signal is continuously input. In other words, the call operation is set to end in a certain time even if the call signal output from the intercom base unit 2 continues for a long period of time. With this setting, the calling operation is not performed continuously for a certain period of time.

  FIG. 3 is a timing chart specifically showing the relationship between the calling signal input from the intercom base unit 2 to the extension chime 3 and the operation of the extension chime 3, and will be described with reference to FIG. In FIG. 3, (a) is a single call signal input, (b) is a call signal input with a short interval, (c) is a call signal input with a relatively long interval. The operation when it is done is shown.

  When the extension chime CPU 31 receives a call operation of the interphone slave unit 1 and receives a call signal from the interphone master unit 2, the extension chime CPU 31 first rings for the T1 time (for example, a ping-pong sound for 5 seconds) at that time. And the monitoring of the ringing tone input is started. If the call signal is continuously input even after 30 seconds, the second ringing sound is sounded. If the call signal continues after 60 seconds, the third ringing sound is sounded (not shown). Even if the call signal is continuously input in these three times, the call operation of the extension chime 3 is completed.

  In addition, after the ringing signal is input and the first ringing tone is sounded, even if the ringing signal input is stopped, monitoring is performed until a predetermined time T3 (for example, 5 seconds), as shown in FIG. If the call signal is re-input during Y seconds which is less than T3 time, it is determined that the call signal is continued. Therefore, even if the second call signal is input during the monitoring period, it is not determined as a new call, and it is determined that one call is continuing, and 30 seconds have passed since the first ringing sound. Otherwise, the second ring is not performed.

  On the other hand, as shown in X seconds of FIG. 3 (c), when a call signal is input after the monitoring period T3 has elapsed, the additional chime CPU 31 determines that the call is a new call and performs a call operation. Even if the elapsed time T2 from the time is less than 30 seconds, the ringing is reset and the ringing of the first ringing tone is started. Thereafter, the same operation as described above is performed.

In this way, even if the call signal is interrupted, if the call signal is input again within the predetermined time T3, it is determined that the call signal continues, so that the call is reset and a new call is started. In this case, it is possible to prevent a ringing sound from being frequently generated.
Even if the duration of the call signal input to the extension chime 3 is long, the ringing operation is completed at a fixed number of times (or a fixed time), so that the ringing tone continues to ring even if the call signal is received for a long time. Therefore, it is possible to prevent a situation in which the ringing tone becomes a noise regardless of the form of the input signal, and the power consumption can be suppressed.

FIG. 4 shows a case where the additional chime 3 is composed of a transmitter 3a and a receiver 3b. The transmitter 3 a has a transmitter 35 in addition to the additional chime CPU 31, and the receiver 3 b has a receiver 36 in addition to the speaker 32. The transmitter 3a is wired or directly connected to the intercom base unit 2, and wireless communication is performed between the transmitter 3a and the receiver 3b.
The call signal output from the intercom base unit 2 is input to the transmitter 3a, the call signal generated by the control of the additional chime CPU 31 is wirelessly transmitted to the receiver 3b, and a ring tone is generated in the receiver 3b. Note that the ringing tone generation control of the additional chime CPU 31 is the same as that in the above embodiment, and the description thereof is omitted.

  Thus, even if the ringing of the extension chime 3 is wirelessly controlled, power can be supplied from the intercom base unit 2 to the extension chime CPU 31. Therefore, even if the power source of the receiver 3b is a battery, it can be driven with low power consumption. In addition, since the ringing of the extension chime 3 is wireless, the installation position can be easily changed, which is convenient.

  In the above embodiment, the number of calls at the time of continuous call is limited to 3 times (the total call time is 60 seconds), but is not limited thereto, and may be 2 times, 4 times, and 5 times.

  1. ・ Interphone cordless handset, 2. ・ Interphone master phone, 3. ・ Extension chime, 3a ・ ・ Transmitter. 3b ··· Receiver, 27 ··· Speaker output terminal (extended speaker terminal), 31 ··· Additional chime CPU (calling control unit), 32 · · Speaker (report sound unit), 35 ·· Transmitter, 36 ··· Receive Department.

Claims (2)

Extension provided in the interphone master unit of an interphone device comprising an interphone slave unit for a visitor to call and make a call and an interphone master unit for reporting and responding to a call from the interphone slave unit An intercom extension chime that is used by connecting to a speaker terminal,
A call control unit for receiving a call signal and ringing a ringing tone; and a sounding unit for ringing;
The call control unit has a maximum call time or maximum number of calls for one call signal, and is linked to the duration of the input call signal until the maximum call time or the maximum number of calls is reached. And keep ringing
If the next call signal is input within a specific time even if the call signal input is interrupted, it is determined that the call is still ongoing and the call control is continued, and no new ringing sound is generated. An intercom extension chime characterized by A transmitter connected to the intercom master unit and a receiver that rings upon receiving a signal transmitted by radio from the transmitter, and the call control unit is arranged in the transmitter. The intercom extension chime according to claim 1 .

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