JP7285476B2 - Information terminal, intercom entrance handset and intercom system - Google Patents

Description

The present invention relates to an information terminal, an intercom entrance slave unit connected to the information terminal, and an intercom system.

2. Description of the Related Art Conventionally, an information terminal such as an intercom main unit provided as a terminal for a dwelling unit of a facility is known. As an example of this information terminal, Patent Literature 1 discloses an information terminal having both a disaster prevention function and a call function. In this information terminal, a dwelling unit terminal control unit provided in the information terminal controls a disaster prevention function and a call function.

JP-A-2002-123876

However, in the information terminal described in Patent Literature 1, for example, if there is a problem with the call function, the disaster prevention function may malfunction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an information terminal or the like that suppresses malfunctions in disaster prevention-related functions.

An information terminal according to an aspect of the present invention is an information terminal provided in a facility, comprising: a first function unit including a first control circuit that controls a disaster prevention-related function related to disaster prevention of the facility; and a second function unit having a second control circuit for controlling a function, and when an abnormality occurs in the second function unit, the disaster prevention related function of the first function unit can be operated, The first function unit has a sound output unit that outputs a first sound based on the operation of the first function unit and a second sound based on the operation of the second function unit.

An intercom entrance slave unit according to one aspect of the present invention is an intercom entrance slave unit connected to the information terminal, comprising a first communication unit connected to the first function unit, wherein the first communication unit , at least sound information is obtained from the first function unit or from the second function unit via the first function unit.

An intercom system according to an aspect of the present invention includes the information terminal described above and an intercom slave unit that communicates with the information terminal.

According to the information terminal, the intercom entrance slave unit, and the intercom system of the present invention, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

1 is a diagram showing an example in which an intercom system according to Embodiment 1 is provided in a collective facility; FIG. 1 is a schematic diagram showing an interphone system according to Embodiment 1; FIG. FIG. 2 is a configuration diagram showing an information terminal and an intercom cordless handset included in the intercom system according to Embodiment 1; 1 is a front view of an information terminal according to Embodiment 1; FIG. FIG. 4 is a configuration diagram showing another example of an information terminal and an intercom cordless handset included in the intercom system according to Embodiment 1; 4 is a diagram showing an example of the operation of the information terminal according to Embodiment 1; FIG. FIG. 4 is a configuration diagram showing an information terminal and an intercom slave unit according to Modification 1 of Embodiment 1; FIG. 10 is a configuration diagram showing an information terminal and an intercom handset included in the intercom system according to Embodiment 2; FIG. 11 is a front view of an intercom entrance slave unit according to Embodiment 2;

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept will be described as arbitrary constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|omitted or simplified.

(Embodiment 1)
An intercom system and the like provided with the information terminal 1a according to the first embodiment will be described below with reference to FIGS. 1 to 7. FIG.

[1-1. Overall configuration of intercom system]
First, the overall configuration of an interphone system according to this embodiment will be described with reference to FIGS. 1 and 2. FIG.

FIG. 1 is a schematic diagram showing an intercom system 80 according to this embodiment. FIG. 2 is a schematic diagram showing an intercom system 80. As shown in FIG.

As shown in FIG. 1, the intercom system 80 includes a plurality of information terminals 1a to 1c and a plurality of intercom entrance slave units 70a to 70c. The intercom system 80 is provided, for example, in the collective facility H1. The collective facility H1 is composed of a plurality of facilities H101, H201, H301 such as residences or offices, and shared spaces such as entrances. Note that FIG. 1 also shows a shared entrance handset 60 installed at the entrance of the collective facility H1 and a control device 50 installed within the collective facility H1. The intercom entrance slave units 70a to 70c and the common entrance slave unit 60 have common functions. Hereinafter, when at least one of the intercom entrance slave units 70a to 70c and the common entrance slave unit 60 is referred to by focusing on this common function, it may be referred to as an "intercom slave unit".

Each of the information terminals 1a to 1c is an intercom main unit installed in the living room of each facility H101 to H301. The information terminals 1a to 1c are connected to the corresponding intercom entrance slave units 70a to 70c, respectively, and are also connected to the common entrance slave unit 60 via the control device 50. FIG. As shown in FIG. 2, for example, the information terminal 1a is connected to an external network via a router 85 or the like. A sensor 90 such as a fire sensor 94 or a gas sensor 95 is connected to the information terminal 1a. The information terminal 1a has disaster prevention-related functions related to disaster prevention. Specifically, the information terminal 1a has a function of receiving a disaster prevention signal output from the sensor 90 and a function of notifying abnormality information based on the disaster prevention signal. Each of the information terminals 1a to 1c is, for example, an intercom main unit fixed to the wall of a living room or the like, but may be other equipment.

As shown in FIG. 1, each of the intercom entrance slave units 70a-70c is installed at the entrance/exit of each facility H101-H301. For example, the intercom entrance cordless handset 70a is directly connected to the information terminal 1a and can communicate with the information terminal 1a.

Although only three sets of information terminals 1a to 1c and intercom entrance slave units 70a to 70c are shown in FIG. Equipped with a terminal and an intercom entrance handset. In the following, the information terminal 1a among the plurality of information terminals 1a to 1c will be described as a representative example. Also, the intercom entrance slave unit 70a among the plurality of intercom entrance slave units 70a to 70c will be described as a representative example.

[1-2. Information terminal configuration]
Next, the information terminal 1a included in the intercom system 80 will be described.

FIG. 3 is a configuration diagram showing an information terminal 1a and an interphone handset. FIG. 4 is a front view of the information terminal 1a. FIG. 5 is a configuration diagram showing another example of the information terminal 1a and intercom handset. FIG. 6 is a diagram showing an example of the operation of the information terminal 1a.

As shown in FIGS. 3 and 4, the information terminal 1a includes a first function unit 10 having disaster prevention-related functions related to disaster prevention of the facility H101, and a second function unit 20 having functions different from the disaster prevention-related functions. Further, the information terminal 1a is provided on a power supply circuit 30 that supplies power to each of the first function unit 10 and the second function unit 20, and a power supply line 32 that connects the power supply circuit 30 and the second function unit 20. and a power cutoff unit 35 .

First, the second functional unit 20 will be described. The second function unit 20 includes a second control circuit 21 , an input circuit 22 , a display circuit 23 , a network communication circuit 24 , an intercom communication circuit 25 and a sound input section 26 . Input circuit 22 , display circuit 23 , network communication circuit 24 , intercom communication circuit 25 and sound input section 26 are each connected to second control circuit 21 . The second function unit 20 is not provided with the abnormality display circuit 13, the fire detection circuit 14, the gas detection circuit 15, and the sound output unit 17, which are circuits related to disaster prevention.

The network communication circuit 24 is a circuit that transmits and receives various data via an external network. Network communication circuit 24 is connected to server 89 via router 85 and an external network. Data received by the network communication circuit 24 is output to the second control circuit 21 . In the information terminal 1a, for example, the update program for the second function unit 20 is downloaded using the network communication circuit 24, and the control program for the second function unit 20 is updated.

The intercom communication circuit 25 is a circuit for communicating with the intercom entrance slave unit 70 a or the common entrance slave unit 60 . The interphone communication circuit 25 has a trunk communication circuit 25a connected to the shared entrance slave unit 60 via the control device 50, and a slave unit communication circuit 25b connected to the intercom entrance slave unit 70a. The intercom communication circuit 25 receives a signal output from the intercom entrance slave unit 70a, such as a signal indicating that a visitor has arrived, a signal relating to the visitor's voice and image, and outputs the received signal to the second control circuit 21. do.

5, intercom communication circuit 25 may be connected to server 89 via control device 50, gateway 86 and an external network. In this case, in the information terminal 1a, the update program for the second function unit 20 is downloaded using the intercom communication circuit 25, and the control program for the second function unit 20 is updated. In this case, the information terminal 1a does not have to include the network communication circuit 24. FIG.

The sound input unit 26 is a circuit to which the user's voice or the like using the information terminal 1a is input. The sound input unit 26 is, for example, a microphone. A signal related to sound input by the sound input unit 26 is output to the second control circuit 21 .

The input circuit 22 is a switch circuit that receives a user's operation input and outputs the received signal to the second control circuit 21 . For example, the second control circuit 21 accepts an operation input of the input circuit 22, and thereby controls that a signal related to sound input by the sound input unit 26 is output to the intercom entrance slave unit 70a via the intercom communication circuit 25. To give permission. The input circuit 22 may be a security switch provided on a door or the like.

The display circuit 23 is a device that displays the data and signals received by the second control circuit 21 as an image. The display circuit 23 is configured by, for example, a liquid crystal panel. The display circuit 23 may display information on disaster prevention transmitted from the first functional unit 10 to the second control circuit 21 .

The second control circuit 21 is a circuit that controls functions different from disaster prevention-related functions. The function different from the disaster prevention-related function is, for example, the function of communicating with the outside via a network, or the function of communicating with the intercom entrance slave unit 70 a or the common entrance slave unit 60 . The second control circuit 21 processes and stores data received by the network communication circuit 24 or the intercom communication circuit 25, or causes the display circuit 23 to display the received data. The second control circuit 21 also outputs a signal related to sound output from the intercom communication circuit 25 to the switching circuit 16 of the first function unit 10, which will be described later.

The second control circuit 21 is configured by, for example, a microcomputer. The second control circuit 21 also includes a memory 21a.

The memory 21a stores data relating to the notification sound. The notification sound is, for example, a chime for notifying that a visitor has arrived. The second control circuit 21 outputs a notification sound to the switching circuit 16 when receiving a signal indicating that a visitor has arrived from the intercom communication circuit 25 .

A control program for operating the second function unit 20 is stored in the memory 21a. The control program stored in the memory 21a can be updated based on an update program provided from the outside of the information terminal 1a. The update program may be provided via a network or via a recording medium such as a memory card.

A temperature sensor 28 that detects the temperature of the second functional section 20 is provided in the second functional section 20 . The temperature sensor 28 is, for example, a thermistor, and is arranged near the second control circuit 21, for example. A signal detected by the temperature sensor 28 is output to the first control circuit 11 of the first functional unit 10 .

Next, the first functional unit 10 will be described. The first function section 10 includes a first control circuit 11 , an input circuit 12 , an abnormality display circuit 13 , a fire detection circuit 14 , a gas detection circuit 15 , a switching circuit 16 and a sound output section 17 . Input circuit 12 , abnormality display circuit 13 , fire detection circuit 14 , gas detection circuit 15 and switching circuit 16 are each connected to first control circuit 11 . Also, the sound output unit 17 is connected to each of the first control circuit 11 and the second control circuit 21 via the switching circuit 16 .

Fire detection circuit 14 is a circuit that is connected to fire sensor 94 (see FIG. 2). The fire detection circuit 14 receives a signal relating to the occurrence of fire output from the fire sensor 94 and outputs this signal to the first control circuit 11 .

The gas detection circuit 15 is a circuit connected to the gas sensor 95 (see FIG. 2). The gas detection circuit 15 receives a signal relating to gas leakage output from the gas sensor 95 and outputs this signal to the first control circuit 11 .

The input circuit 12 is a circuit that receives a user's operation input. The input circuit 12 is, for example, an alarm sound stop button switch for stopping the ringing of the alarm sound. The input circuit 12 outputs to the first control circuit 11 a signal received by a user's operation input.

The abnormality display circuit 13 is a circuit for notifying abnormality information regarding fire and gas leakage with light. FIG. 4 shows, as an example of the abnormality display circuit 13, a fire indicator lamp for reporting fire and a gas leakage indicator lamp for reporting gas leakage. By turning on the abnormality display circuit 13, the user can know that a fire or gas leak has occurred in the facility H101.

The sound output section 17 is a circuit that outputs a first sound based on the operation of the first functional section 10 and a second sound based on the operation of the second functional section 20 . The sound output unit 17 is, for example, a speaker. The first sound is a sound generated based on at least one of the signals received by the fire detection circuit 14 and the gas detection circuit 15, and is, for example, an alarm sound for notifying the user of abnormal information. The second sound is a sound generated based on a signal received by the intercom communication circuit 25 of the second function unit 20, and is, for example, a notification sound for notifying that a visitor has arrived and It is a call sound emitted from. The sound output unit 17 outputs the first sound or the second sound so that the time for outputting the first sound and the time for outputting the second sound do not overlap.

The switching circuit 16 is a circuit that selectively switches between the signal s1 output from the first control circuit 11 and the signal s2 output from the second control circuit 21 and outputs the signal to the sound output unit 17 . Note that the signal s1 is an acoustic signal that is the source of the first sound, and the signal s2 is the acoustic signal that is the source of the second sound. The input side of the switching circuit 16 is connected to each of the first control circuit 11 and the second control circuit 21 , and the output side of the switching circuit 16 is connected to the sound output section 17 . The switching circuit 16 is configured by, for example, a relay circuit.

The switching circuit 16 causes the sound output unit 17 to output the first sound or the second sound so that the time for outputting the first sound and the time for outputting the second sound do not overlap. More specifically, when receiving both the signal s1 and the signal s2, the switching circuit 16 preferentially outputs the signal s1 over the signal s2 to the sound output unit 17 . For example, as shown in FIG. 6, when the switching circuit 16 receives the signal s1 while the second sound is being output from the sound output unit 17 (see (a) in FIG. 6), the sound output unit 17 outputs The sound to be played is switched from the second sound to the first sound (see FIG. 6(b)). Conversely, when the signal s1 is no longer input, the switching circuit 16 switches the sound output from the sound output section 17 from the first sound to the second sound. In this manner, the switching circuit 16 causes the sound output unit 17 to output the first sound related to disaster prevention with priority over the second sound, which is the notification sound and the call sound.

The first control circuit 11 is a circuit that controls the functions related to disaster prevention that the first function unit 10 has. The disaster-prevention-related function is a function of detecting and reporting abnormalities such as fires and gas leaks. Specifically, the first control circuit 11 outputs a signal s1 to the switching circuit 16 based on each signal output from the fire detection circuit 14 or the gas detection circuit 15, and outputs the first sound from the sound output unit 17. output. Further, the first control circuit 11 causes the abnormality display circuit 13 to display abnormality information based on each signal output from the fire detection circuit 14 or the gas detection circuit 15 .

Also, the first control circuit 11 is communicably connected to the second control circuit 21 . For example, the first control circuit 11 transmits a signal regarding the occurrence of fire or gas leakage to the second control circuit 21, and the second control circuit 21 transmits an ACK (ACKnowledgement) signal indicating that the signal has been received. Send to circuit 11 . In this information terminal 1a, the communication from the second control circuit 21 to the first control circuit 11 is compared with the communication from the first control circuit 11 to the second control circuit 21 so as not to cause malfunctions in disaster prevention related functions. are limited. Communication restrictions between the first function unit 10 and the second function unit 20 will be described later.

Also, the first control circuit 11 is configured by, for example, a microcomputer. The first control circuit 11 includes a memory 11a and an abnormality determination section 11b.

A control program for operating the first function unit 10 is stored in the memory 11a. Since the control program stored in the memory 11a is set to be non-updatable, even if the control program in the memory 21a is updated, it will not be affected. The memory 11a also stores an alarm sound for announcing abnormal information. The first control circuit 11 outputs a signal for sounding an alarm to the switching circuit 16 when receiving a signal related to the occurrence of fire or gas leakage.

The abnormality determination unit 11b is a circuit that determines whether the second function unit 20 and the power supply line 32 are abnormal. Based on the signal output to the first function unit 10, the abnormality determination unit 11b determines whether or not there is an abnormality. A plurality of examples of determination by the abnormality determination unit 11b will be described below.

For example, the abnormality determination unit 11b determines whether there is an abnormality in the second function unit 20 or the power supply line 32 based on a signal output from a current detection circuit (for example, a resistor) 36 provided on the power supply line 32. do. Specifically, the abnormality determination unit 11b determines that the second function unit 20 or the power supply line 32 is abnormal when the current flowing through the power supply line 32 exceeds a specified current value. The prescribed current value is an allowable current value determined according to the specifications of the second functional unit 20 .

For example, the abnormality determination unit 11 b determines whether or not the second function unit 20 is abnormal based on the signal transmitted from the second function unit 20 to the first function unit 10 . Specifically, the abnormality determination unit 11b determines that the second function unit 20 is abnormal when the voltage supplied to the second function unit 20 is less than the specified voltage value. The voltage supplied to the second function unit 20 is detected by, for example, connecting the power supply line 32 to the voltage value detection port of the second control circuit 21 .

For example, the abnormality determination unit 11 b determines whether the second function unit 20 is abnormal based on a signal output from the temperature sensor 28 provided in the second function unit 20 . Specifically, when the temperature detected by the temperature sensor 28 exceeds a specified temperature, the abnormality determination unit 11b determines that the second function unit 20 is abnormal. The specified temperature is an allowable temperature determined according to the specifications of the second control circuit 21, and is appropriately selected from the range of 70° C. or higher and 90° C. or lower, for example.

For example, the abnormality determination unit 11b determines whether the second function unit 20 is abnormal based on the presence or absence of a signal returned from the second control circuit 21. FIG. Specifically, when an ACK (ACKnowledgement) signal is not returned from the second control circuit 21 within a certain period of time after the first control circuit 11 transmits a signal to the second control circuit 21, the abnormality determination unit 11b When communication between the first function unit 10 and the second function unit 20 is disabled, the second function unit 20 is determined to be abnormal. In this manner, the abnormality determination unit 11b may determine that the second function unit 20 is abnormal when the first function unit 10 and the second function unit 20 cannot communicate with each other.

The first control circuit 11 stops power supply to the second functional unit 20 using the power cutoff unit 35 when the abnormality determination unit 11b determines that the second functional unit 20 or the power supply line 32 is abnormal. Cut off.

Next, the power supply circuit 30 and power cutoff unit 35 that supply power to the first function unit 10 and the second function unit 20 will be described.

As shown in FIG. 3 , the power supply circuit 30 supplies power to the first functional section 10 via a power supply line 31 that connects the power supply circuit 30 and the first functional section 10 . Also, the power supply circuit 30 supplies power to the second functional section 20 via the power supply line 32 and the power cutoff section 35 .

The power cutoff unit 35 is provided on the power supply line 32 that connects the power supply circuit 30 and the second function unit 20 on the second function unit 20 side of the power supply circuit 30 . The power cutoff unit 35 is, for example, a surface-mounted fuse or a surface-mounted relay (for example, contactless relay).

If the power cutoff portion 35 is a fuse, the fuse wire will cut off and the power supply will be cut off when an overcurrent flows through the power supply line 32 . That is, the power cutoff unit 35 is configured to cut off without being controlled by the first control circuit 11 . With this configuration, the first functional unit 10 can operate the disaster prevention-related function without being affected by the second functional unit 20 even when an overcurrent flows through the second functional unit 20 .

When the power cutoff unit 35 is a relay, the power cutoff unit 35 cuts off the power supply to the second function unit 20 based on the cutoff instruction signal transmitted from the first function unit 10 . Specifically, when the abnormality determination unit 11b determines that there is an abnormality in the second function unit 20 or the power supply line 32, it outputs a cutoff instruction signal to the power cutoff unit 35 to cut off the power supply. With this configuration, the first function unit 10 can operate the disaster prevention-related functions without being affected by the second function unit 20 even when an abnormality occurs in the second function unit 20 .

Next, communication restrictions between the first function unit 10 and the second function unit 20 will be described.

In this information terminal 1a, a first functional unit 10 and a second functional unit 20 are connected so as to be able to communicate with each other. to the second functional unit 20 are limited.

For example, the amount of information in the signal transmitted from the second control circuit 21 to the first control circuit 11 is set to be smaller than the amount of information in the signal transmitted from the first functional unit 10 to the second functional unit 20. It is Specifically, as described above, the first control circuit 11 transmits a signal regarding fire or gas leakage to the second control circuit 21, and the second control circuit 21 transmits only an ACK signal to the first control circuit 11. configured to reply.

Further, in the information terminal 1a, communication from the second function unit 20 to the first function unit 10 is cut off when the first control circuit 11 receives abnormality information regarding fire and gas leakage. For example, when the first control circuit 11 receives the abnormality information, the first function unit 10 prohibits the second function unit 20 from transmitting a signal to the first function unit 10. Issue an order to 21. Alternatively, when the first control circuit 11 receives the abnormality information, the first function unit 10 ignores the signal transmitted from the second function unit 20 without receiving it, or the signal transmitted from the second function unit 20 is ignored. block the signal. As a result, communication from the second function unit 20 to the first function unit 10 is cut off.

As described above, in the information terminal 1a, the communication from the second function unit 20 to the first function unit 10 is restricted compared to the communication from the first function unit 10 to the second function unit 20, so that the second function Regardless of whether the unit 20 is normal or abnormal, the disaster prevention-related functions of the first functional unit 10 are configured to work.

[1-3. effects, etc.]
As described above, the information terminal 1a according to the present embodiment is an information terminal provided in the facility H101, and is different from the first function unit 10 having the disaster prevention-related functions related to disaster prevention of the facility H101. and a second functional unit 20 having a function. The first functional section 10 has a sound output section 17 that outputs a first sound based on the operation of the first functional section 10 and a second sound based on the operation of the second functional section 20 .

According to this, for example, even if the second functional unit 20 has a problem, the first sound related to disaster prevention can be output from the sound output unit 17 of the first functional unit 10 . As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

Further, the sound output unit 17 may output the first sound or the second sound so that the times when the first sound and the second sound are output do not overlap.

According to this, it is possible to suppress difficulty in hearing the first sound related to disaster prevention. As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

Further, the first function unit 10 may switch the sound output from the sound output unit 17 from the second sound to the first sound, or may switch from the first sound to the second sound. .

According to this, it is possible to output the first sound or the second sound by switching. For example, the first function unit 10 switches the sound output from the sound output unit 17 from the second sound to the first sound, thereby suppressing difficulty in hearing the first sound related to disaster prevention. . As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

Also, the first function unit 10 may cause the sound output unit 17 to output the first sound with priority over the second sound.

In this way, by outputting the first sound with priority over the second sound, it is possible to suppress difficulty in hearing the first sound related to disaster prevention.

Further, the first functional unit 10 has at least one of the fire detection circuit 14 connected to the fire sensor 94 and the gas detection circuit 15 connected to the gas sensor 95, and the second functional unit 20 has , an intercom communication circuit 25 that communicates with the intercom cordless handset.

As a result, for example, even if a problem occurs in the second function unit 20 connected to the intercom handset, the first sound related to disaster prevention can be output from the first function unit 10 . As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

In addition, the first function unit 10 generates a first sound based on at least one of the signals received by the fire detection circuit 14 and the gas detection circuit 15, and the second function unit 20 generates the intercom communication circuit 25. A second sound may be generated based on the received signal.

As a result, it is possible to prevent the first sound related to disaster prevention such as fire outbreak or gas leak from becoming inaudible due to the second sound based on the signal received by the intercom communication circuit 25 . As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

Moreover, the second function unit 20 may have a control program for operating a function different from the disaster prevention-related function, and may update the control program based on an update program provided from the outside of the information terminal 1a.

For example, in a conventional information terminal, control programs are updated via a network in order to ensure the security of the information terminal. However, if there is a bug in the update program for updating the control program, the information terminal may malfunction. In that case, the disaster prevention function of the information terminal does not work normally, and there arises a problem that the abnormality information sensed by the sensor cannot be notified. On the other hand, in the information terminal 1a of the present embodiment, for example, even if a problem occurs in the second function unit 20 while the control program is being updated in the second function unit 20, the disaster prevention-related It is possible to suppress the occurrence of malfunctions in the first functional unit 10 having the function.

The interphone system 80 according to the present embodiment includes the information terminal 1a and an intercom slave unit (at least one of the intercom entrance slave units 70a to 70c and the common entrance slave unit 60) that communicates with the information terminal 1a.

In this intercom system 80, since the first sound based on the operation of the first function unit 10 and the second sound based on the operation of the second function unit 20 are output in the information terminal 1a so as not to overlap, the first sound related to disaster prevention is output. It is possible to prevent the sound of 1 from becoming difficult to hear. As a result, it is possible to suppress the occurrence of malfunctions in disaster prevention-related functions.

[1-4. Modification 1 of Embodiment 1]
Next, information terminal 1aA according to Modification 1 of Embodiment 1 will be described.

FIG. 7 is a configuration diagram showing an information terminal 1aA and an intercom entrance slave unit 70a according to Modification 1. As shown in FIG. As shown in FIG. 7, communication between the first control circuit 11 and the second control circuit 21 in the information terminal 1aA is not bidirectional communication, but unidirectional communication from the first control circuit 11 to the second control circuit 21. It has become. Specifically, the transmission of signals from the first control circuit 11 to the second control circuit 21 is enabled, but the transmission of signals from the second control circuit 21 to the first control circuit 11 is disabled. is set to This setting is determined, for example, by a control program stored in the memory 11a.

That is, in the information terminal 1aA of Modified Example 1, the first function unit 10 has a first control circuit 11 that controls the functions related to disaster prevention, and the second function unit 20 functions differently from the functions related to disaster prevention. It has a second control circuit 21 for controlling. Although the first control circuit 11 and the second control circuit 21 are connected to each other, the communication between the first control circuit 11 and the second control circuit 21 is a simple communication from the first control circuit 11 to the second control circuit 21. Directional communication.

In this way, by restricting the communication from the second functional unit 20 to the first functional unit 10 compared to the communication from the first functional unit 10 to the second functional unit 20, the information terminal 1aA can perform the second Even if the functional unit 20 malfunctions, it is possible to prevent the disaster prevention-related functions of the first functional unit 10 from malfunctioning.

(Embodiment 2)
Next, intercom system 80A according to Embodiment 2 will be described. In the second embodiment, an embodiment will be described in which an intercom entrance slave unit 70a is used to test whether or not the disaster prevention-related functions of the intercom system 80A work normally.

FIG. 8 is a configuration diagram showing an information terminal 1a and an intercom handset provided in an intercom system 80A according to Embodiment 2. As shown in FIG. FIG. 9 is a front view of the intercom entrance slave unit 70a.

An intercom system 80A of Embodiment 2 includes an information terminal 1a and an intercom entrance handset 70a communicating with the information terminal 1a. The information terminal 1a of the second embodiment has the same configuration as the information terminal 1a of the first embodiment. Here, the description of the information terminal 1a is omitted, and the intercom entrance cordless handset 70a is described.

As shown in FIGS. 8 and 9, the intercom entrance slave unit 70a includes a first communication section 71a, a second communication section 71b, a call button 72, a microphone 76, a speaker 77, a camera 78, and a test input reception section 79. FIG. In addition, the intercom entrance cordless handset 70a includes a control circuit (not shown) for controlling the operations of the call button 72, the microphone 76, the speaker 77 and the camera 78. FIG.

Each of call button 72, microphone 76, speaker 77 and camera 78 is a device for communicating between the user and the visitor. Signals received by call button 72, microphone 76, and camera 78 are output to information terminal 1a via first communication unit 71a, and sent to second control circuit 21 via intercom communication circuit 25 of information terminal 1a. output. On the other hand, the signal received by the sound input unit 26 of the information terminal 1a is output from the second control circuit 21 through the switching circuit 16 to the intercom entrance slave unit 70a, and is output to the first communication unit 71a of the intercom entrance slave unit 70a. is output to the speaker 77 via the .

Each of the first communication unit 71a and the second communication unit 71b is a communication circuit used for testing the disaster prevention-related function of the information terminal 1a.

The first communication section 71 a is connected to the switching circuit 16 of the first functional section 10 . The first communication unit 71 a acquires from the switching circuit 16 the signal s1 related to the first sound (alarm sound) output from the first control circuit 11 . Alternatively, the first communication unit 71 a acquires from the switching circuit 16 the signal s2 related to the second sound (notification sound or the like) output from the second control circuit 21 .

The second communication section 71b is connected to the first control circuit 11 of the first functional section 10 . When the test input reception unit 79 receives the test start signal, the second communication unit 71 b transmits a test signal for testing the disaster prevention-related function of the first function unit 10 to the first control circuit 11 . The test signal is a signal for notifying the first control circuit 11 that the test is in progress.

In this intercom system 80A, first, the intercom entrance slave unit 70a outputs a test signal to the first control circuit 11 via the second communication section 71b. The first control circuit 11 that has received the test signal outputs a signal s1 related to the first sound to the switching circuit 16 . Here, the tester determines whether or not the disaster prevention-related functions of the first functional unit 10 are functioning normally based on whether or not the first sound is generated from the intercom entrance slave unit 70a. For example, the intercom entrance slave unit 70a determines that there is no abnormality in the disaster prevention-related function when the signal s1 related to the first sound is acquired, and determines that there is an abnormality in the disaster prevention-related function when the signal s1 is not acquired. I judge.

In the above intercom system 80A, an example in which the information terminal 1a is tested using the intercom entrance slave unit 70a as a tester is shown, but the present invention is not limited to this. The above test may be performed by controlling the interphone entrance slave unit 70a using this dedicated tester.

The intercom entrance slave unit 70a of the second embodiment is the intercom entrance slave unit 70a connected to the information terminal 1a of the first embodiment, and includes a first communication unit 71a that communicates with the first function unit 10. FIG. The first communication unit 71 a acquires at least a signal related to sound from the first function unit 10 or from the second function unit 20 via the first function unit 10 .

In this manner, the first communication unit 71a acquires the signal related to the sound of the first function unit 10 or the second function unit 20, so that even when the second function unit 20 has an abnormality, the first function unit It is possible to test whether or not the 10 disaster prevention related functions are malfunctioning.

In addition, the intercom entrance cordless handset 70a further includes a second communication section 71b that communicates with the first function section 10 . The second communication unit 71b transmits a test signal for testing the disaster prevention-related function to the first function unit 10. FIG.

In this manner, the second communication unit 71b transmits the test signal to the first function unit 10, so that even when there is an abnormality in the second function unit 20, the signal related to the sound of the first function unit 10 can be obtained. can do. Thereby, it is possible to test whether or not the disaster prevention-related function of the first function unit 10 is malfunctioning.

(Other embodiments)
Although the embodiments have been described above, the present invention is not limited to the above embodiments.

For example, the first function unit 10 and the second function unit 20 may be provided in one housing included in the information terminal 1a. Note that each of the sound input unit 26 and the sound output unit 17 is not limited to being provided inside the housing, and may be provided outside the housing.

For example, the switching process of the sound output to the sound output unit 17 may be executed by the control program of the first control circuit 11 instead of the switching circuit 16 . In that case, the signal s2 related to the second sound output from the second control circuit 21 is output to the first control circuit 11, and the signal related to the first sound and the second sound output from the first control circuit 11 is directly output to the sound output unit 17 .

For example, if a fire or gas leak occurs while the control program is being updated in the second function unit 20, the first function unit 10 stops the update of the control program in the second function unit 20. may At that time, the first function unit 10 stops the image display during the program update displayed on the display circuit 23 and instructs the second function unit 20 to display the information about the fire or gas leak. good.

For example, if a fire or gas leak occurs while the control program is being updated in the second function unit 20, the first function unit 10 notifies abnormal information about the fire or gas leak. , the update of the control program of the second function unit 20 may be continued.

For example, in the above embodiment, the intercom system is a system for the collective facility H1, but it may be a system for a detached house.

Also, the communication method between devices in the above embodiment is not particularly limited. Wireless communication may be performed between the devices, or wired communication may be performed. Also, wireless and wired communications may be combined between devices.

The order of processing described in the above embodiment is an example. The order of multiple processes may be changed, and multiple processes may be executed in parallel.

In addition, forms obtained by applying various modifications to each embodiment that a person skilled in the art can think of, or realized by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. Also included in the present invention.

1a, 1b, 1c, 1aA information terminal 10 first function unit 11 first control circuit 11b abnormality determination unit 14 fire detection circuit 15 gas detection circuit 17 sound output unit 20 second function unit 21 second control circuit 24 network communication circuit 25 Interphone communication circuit 26 Sound input unit 28 Temperature sensor 30 Power supply circuit 31, 32 Power supply line 35 Power cutoff unit 70a, 70b, 70c Intercom entrance slave unit 71a First communication unit 71b Second communication unit 80, 80A Intercom system 94 Fire detection Instrument 95 Gas detector H101, H201, H301 Facility

Claims (10)

An information terminal provided in a facility,
a first functional unit having a first control circuit for controlling disaster prevention-related functions related to disaster prevention of the facility;
A second function unit having a second control circuit that controls a function different from the disaster prevention related function,
When an abnormality occurs in the second function unit, the disaster prevention-related function of the first function unit can be operated,
The information terminal, wherein the first function unit has a sound output unit that outputs a first sound based on the operation of the first function unit and a second sound based on the operation of the second function unit. 2. The first sound or the second sound according to claim 1, wherein the sound output unit outputs the first sound or the second sound so that the output times of the first sound and the second sound do not overlap. Information terminal. The first function unit switches the sound output from the sound output unit from the second sound to the first sound, or switches from the first sound to the second sound. 2. The information terminal described in 2 above. 4. The information terminal according to any one of claims 1 to 3, wherein the first function unit causes the sound output unit to output the first sound with priority over the second sound. The first functional unit has at least one of a fire detection circuit connected to a fire sensor and a gas detection circuit connected to a gas sensor,
The information terminal according to any one of claims 1 to 4, wherein the second functional unit has an interphone communication circuit that communicates with an interphone handset. The first function unit generates the first sound based on at least one of signals received by the fire detection circuit and the gas detection circuit,
The information terminal according to Claim 5, wherein the second function unit generates the second sound based on a signal received by the intercom communication circuit. 7. The second function unit has a program for operating a function different from the disaster prevention-related function, and updates the program based on an update program provided from the outside of the information terminal. 1. Information terminal according to item 1. An intercom entrance slave unit connected to the information terminal according to any one of claims 1 to 7,
A first communication unit connected to the first function unit,
The first communication unit acquires at least information about sound from the first function unit or acquires from the second function unit via the first function unit. Further comprising a second communication unit connected to the first function unit,
The intercom entrance slave unit according to claim 8, wherein the second communication unit transmits a test signal for testing the disaster prevention-related function to the first function unit. An interphone system comprising: the information terminal according to any one of claims 1 to 7; and an interphone handset communicating with the information terminal.

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