Wireless broadcasting system and wireless broadcasting method

Abstract

To provide a wireless broadcasting system and a wireless broadcasting method for appropriately reporting details on emergency broadcasts.SOLUTION: A wireless broadcasting system 1 includes: a living room master unit 40 that is arranged at a target location; a wireless signal receiving device 10 for generating a sound signal included in a received wireless signal when a wireless signal including a specific wireless signal identifying an emergency broadcast is received; and a control device 20 capable of making an audio broadcast simultaneously to the plurality of living room master units 40. The control device 20 transmits the sound signal generated by the wireless signal receiving device 10 to the living room master unit 40 to cause the living room master unit 40 to output the audio broadcast on the basis of the sound signal.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a wireless broadcasting system and a wireless broadcasting method. [Background technology]

[0002] In response to emergencies, local governments and other organizations have been broadcasting emergency broadcasts based on disaster prevention radio, but emergency broadcasts from speakers installed in various locations can sometimes be difficult to hear. As a countermeasure, in recent years, technology has become known that outputs emergency broadcasts using individual receivers that receive disaster prevention radio signals, or disaster prevention radios that receive radio signals from community FM stations instead of radio (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5154504 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional technology requires the installation of dedicated receiving devices such as individual receivers or disaster prevention radios in each residence, making it difficult to apply. Therefore, with the conventional technology, it was sometimes difficult to properly notify the contents of emergency broadcasts.

[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a radio broadcasting system and a radio broadcasting method that can properly notify the contents of an emergency broadcast. [Means for solving the problem]

[0006] In order to solve the above problems, one aspect of the present invention is a wireless broadcasting system comprising an intercom device placed at a target location, a wireless signal receiving device that, when receiving a wireless signal including a specific radio signal indicating an emergency broadcast, generates a sound signal contained in the received wireless signal, and a control device capable of simultaneously broadcasting audio to multiple intercom devices, which transmits the sound signal generated by the wireless signal receiving device to the intercom device and causes the intercom device to output an audio broadcast based on the sound signal.

[0007] Furthermore, one aspect of the present invention is characterized in that, in the above-mentioned wireless broadcasting system, an entrance / exit terminal device is placed at an entrance / exit of an apartment building and is capable of communicating with the intercom device, the target location is an apartment in the apartment building, and the control device transmits the sound signal generated by the wireless signal receiving device to the entrance / exit terminal device, and causes the entrance / exit terminal device to output the audio broadcast based on the sound signal.

[0008] Furthermore, one aspect of the present invention is characterized in that, in the above-mentioned wireless broadcasting system, when the wireless signal receiving device receives the specific wireless signal during a call between the intercom device and the entrance / exit terminal device, the control device switches from the call between the intercom device and the entrance / exit terminal device to the audio broadcast, and outputs the audio broadcast to the intercom device and the entrance / exit terminal device.

[0009] Another aspect of the present invention is characterized in that, in the above-mentioned wireless broadcasting system, the control device does not cause the entrance / exit terminal device to output the audio broadcast when a call is not in progress between the intercom device and the entrance / exit terminal device.

[0010] Furthermore, one aspect of the present invention is characterized in that, in the above-mentioned wireless broadcasting system, the entrance / exit terminal device is equipped with a human presence sensor that detects the presence of a person in the vicinity, and the control device causes the entrance / exit terminal device to output the audio broadcast when the human presence sensor detects the presence of a person around the entrance / exit terminal device.

[0011] In addition, one aspect of the present invention is characterized in that, in the above-mentioned wireless broadcasting system, the wireless signal is a disaster prevention administrative wireless signal transmitted from a local government or a disaster prevention related radio wireless signal transmitted from a community FM radio station.

[0012] In addition, one aspect of the present invention is characterized in that, in the wireless broadcasting system, the specific wireless signal is an emergency start-up signal that automatically starts up the wireless signal receiving device.

[0013] Moreover, one aspect of the present invention is a wireless broadcasting method for the wireless broadcasting system, which includes an intercom device to be placed at a target location, a wireless signal receiving device, and a control device capable of simultaneously broadcasting audio to multiple intercom devices, and which is characterized in that it includes a first step of generating a sound signal contained in the received wireless signal when the wireless signal receiving device receives a wireless signal including a specific wireless signal indicating an emergency broadcast, and a second step of the control device transmitting the sound signal generated by the wireless signal receiving device to the intercom device, causing the intercom device to output an audio broadcast based on the sound signal. Effect of the Invention

[0014] According to the present invention, the contents of an emergency broadcast can be appropriately notified. [Brief description of the drawings]

[0015] [Figure 1] 1 is a block diagram showing an example of a wireless broadcasting system according to a first embodiment. [Diagram 2] 5 is a flowchart showing an example of an operation of the control device in the first embodiment. [Diagram 3] FIG. 4 is a diagram showing an example of audio output processing for an emergency broadcast by the wireless broadcasting system according to the first embodiment. [Figure 4] FIG. 11 is a diagram showing another example of the audio output process of an emergency broadcast by the wireless broadcasting system according to the first embodiment. [Diagram 5] 6 is a flowchart showing a modified example of the operation of the control device in the first embodiment. [Figure 6] FIG. 11 is a block diagram showing an example of a wireless broadcasting system according to a second embodiment. [Figure 7] FIG. 11 is a block diagram showing an example of a wireless broadcasting system according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wireless broadcasting system and a wireless broadcasting method according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0017] [First embodiment] FIG. 1 is a block diagram showing an example of a wireless broadcasting system 1 according to the first embodiment. 1, the wireless broadcasting system 1 includes a wireless signal receiving device 10, a control device 20, a management room master unit 30, a plurality of room master units 40 (40-1, 40-2, ...), and a collective entrance unit 50. In this embodiment, the wireless broadcasting system 1 will be described as an example of a system that outputs emergency broadcasts to each dwelling unit in a collective housing unit such as an apartment building.

[0018] The wireless signal receiving device 10 is, for example, a receiving device that receives emergency broadcasts, and is arranged in a management room MR of a collective housing unit such as an apartment building. When the wireless signal receiving device 10 receives a wireless signal including a specific wireless signal, it generates a sound signal included in the received wireless signal. Here, the specific wireless signal is, for example, an emergency startup signal that automatically starts the wireless signal receiving device 10, and the wireless signal is a disaster prevention administrative wireless signal transmitted from a local government or a radio wireless signal related to disaster prevention transmitted from a community FM radio station.

[0019] For example, when the wireless signal receiving device 10 receives an emergency start-up signal, the wireless signal receiving device 10 starts up its own device (wireless signal receiving device 10) and generates a sound signal included in the received wireless signal. The wireless signal receiving device 10 transmits the generated sound signal to the control device 20.

[0020] The control device 20 is disposed in the management room MR, similar to the wireless signal receiving device 10, and controls the entire wireless broadcasting system 1. The control device 20 is a device capable of simultaneously broadcasting audio to multiple room master units 40, and transmits sound signals generated by the wireless signal receiving device 10 to all of the room master units 40 described later, causing the room master units 40 to output audio broadcasts based on the sound signals. The control device 20 also relays sound signals between the room master units 40 and the collective entrance unit 50 described later, allowing calls to be made between the room master units 40 and the collective entrance unit 50. The control device 20 also causes the sound signals output by the management room master unit 30 described later to be output to multiple room master units 40 simultaneously, causing audio broadcasts based on the sound signals. The control device 20 also includes a control unit 21. The control unit 21 is, for example, a processor including a CPU (Central Processing Unit), and performs overall control of the control device 20. The control device 20 includes a call processing unit 211 and a broadcast processing unit 212.

[0021] The call processing unit 211 executes processing for calls between the room master unit 40 and the collective entrance unit 50. For example, when a guest or visitor comes to the collective entrance hall EH and operates the collective entrance unit 50 to call a resident of the dwelling unit HM, the call processing unit 211 executes processing for making a call between the room master unit 40 of the dwelling unit HM and the collective entrance unit 50.

[0022] Specifically, the call processing unit 211 transfers the sound signal of the visitor's voice received from the collective entrance unit 50 to the room master unit 40, and causes the room master unit 40 to output a sound based on the sound signal of the visitor's voice. The call processing unit 211 also transfers the sound signal of the resident's voice received from the room master unit 40 to the collective entrance unit 50, and causes the collective entrance unit 50 to output a sound based on the sound signal of the resident's voice. The call processing unit 211 also processes calls between the management room master unit 30 and the room master unit 40 in the same manner as the call processing between the room master unit 40 and the collective entrance unit 50.

[0023] The broadcast processing unit 212 executes broadcast processing to simultaneously output an audio broadcast to multiple room master units 40. The broadcast processing unit 212, for example, transmits an audio signal generated by the wireless signal receiving device 10 to the room master unit 40, and causes the room master unit 40 to output an audio broadcast based on the audio signal.

[0024] Furthermore, the broadcast processing unit 212 transmits the sound signal generated by the wireless signal receiving device 10 to the collective entrance unit 50, and causes the collective entrance unit 50 to output an audio broadcast based on the sound signal. For example, when the wireless signal receiving device 10 receives a specific wireless signal (such as an emergency start signal) during a call between the room master unit 40 and the collective entrance unit 50, the broadcast processing unit 212 switches the call between the room master unit 40 and the collective entrance unit 50 to an audio broadcast, and causes the audio broadcast to be output to the room master unit 40 and the collective entrance unit 50. Furthermore, for example, when a call is not being held between the room master unit 40 and the collective entrance unit 50, the control device 20 does not cause the collective entrance unit 50 to output an audio broadcast. Moreover, the broadcast processing unit 212 transmits the sound signal received from the management room master unit 30 to each room master unit 40, causing the room master unit 40 to output an audio broadcast based on the sound signal.

[0025] The management room master unit 30 is an intercom device located in the management room MR, and is used for communication between the manager of the apartment complex and the residents of each dwelling unit HM, and for simultaneous broadcasting to the residents of each dwelling unit HM. The management room master unit 30 includes an input unit 31, a display unit 32, a microphone 33, a speaker 34, and a management master unit control unit 35.

[0026] The input unit 31 is, for example, an input device such as a touch panel, a key switch of a telephone, or a control button, and receives operations from an administrator who is a user, and supplies the input information to the management parent device control unit 35. The display unit 32 is, for example, a display device such as a liquid crystal display, and displays various information supplied from the management master control unit 35.

[0027] The microphone 33 picks up, for example, the user's voice and supplies the picked-up sound signal to the management master unit control section 35 . The speaker 34 outputs (emits) sounds (such as voice) based on various sound signals supplied from the management master device control unit 35 to the outside. The microphone 33 and the speaker 34 may be configured like a telephone receiver.

[0028] The management master unit control unit 35 is, for example, a processor including a CPU, and performs overall control of the management room master unit 30. The management master unit control unit 35 executes various processes based on input information received by the input unit 31, and causes the display unit 32 to display display information according to various situations. The management master unit control unit 35 also transmits sound signals picked up by the microphone 33 to the control device 20, and causes the speaker 34 to output sound (e.g., telephone call voice, etc.) based on sound signals received from the control device 20. The management master unit control unit 35 performs control such as processing calls between the room master unit 40 and the management room master unit 30 and processing simultaneous broadcasts to the room master unit 40.

[0029] The room master unit 40 (an example of an intercom device) is a device that is placed in each dwelling unit HM of an apartment building and used as an intercom. In this embodiment, the room master units 40-1, 40-2, ... each have the same configuration, and will be described as the room master unit 40 when referring to any room master unit in the wireless broadcasting system 1 or when no particular distinction is made. The room master unit 40 includes an input unit 41, a display unit 42, a microphone 43, a speaker 44, and a room master unit control unit 45.

[0030] The input unit 41 is an input device such as a touch panel, a telephone key switch, or a control button, and receives operations from a resident of the dwelling unit HM who is the user, and supplies the input information to the room master unit control unit 45. The display unit 42 is, for example, a display device such as a liquid crystal display, and displays various information supplied from the room master unit control unit 45. The display unit 42 displays, for example, an image of a guest or visitor transmitted from the collective entrance unit 50 when the room master unit 40 communicates with the collective entrance unit 50.

[0031] The microphone 43, for example, picks up the voice of the user and supplies the picked-up sound signal to the room master unit control unit 45. For example, when the room master unit 40 communicates with the collective entrance unit 50, the microphone 43 picks up the voice of the resident of the dwelling unit HM and supplies the voice to the room master unit control unit 45.

[0032] The speaker 44 outputs (emits) to the outside sounds (e.g., voices, etc.) based on various sound signals supplied from the room master unit control unit 45. For example, when the room master unit 40 communicates with the collective entrance unit 50, the speaker 44 outputs the voice of a guest or visitor transmitted from the collective entrance unit 50. Also, for example, when the wireless broadcasting system 1 outputs an emergency broadcast, the speaker 44 outputs an audio broadcast based on a sound signal generated from a wireless signal by the wireless signal receiving device 10.

[0033] The room master unit control unit 45 is, for example, a processor including a CPU, and performs overall control of the room master unit 40. The room master unit control unit 45 executes various processes based on input information received by the input unit 41, and causes the display unit 42 to display information according to various situations. The room master unit control unit 45 also transmits sound signals picked up by the microphone 43 to the control device 20, and causes the speaker 44 to output sound (e.g., telephone call voice) based on the sound signals received from the control device 20.

[0034] The room parent unit control unit 45 controls, for example, the processing of calls between the room parent unit 40 and the collective entrance unit 50, the processing of simultaneous broadcasting of emergency broadcasts, etc. When processing calls between the room parent unit 40 and the collective entrance unit 50, for example, the room parent unit control unit 45 transmits a sound signal picked up by the microphone 43 to the control device 20, causes the collective entrance unit 50 to output a call voice based on the sound signal, and causes the speaker 44 to output a call voice based on a sound signal received from the collective entrance unit 50 via the control device 20. The room parent unit control unit 45 also causes the display unit 42 to display image data of guests, visitors, etc. received from the collective entrance unit 50 via the control device 20.

[0035] Furthermore, when the room parent unit control unit 45 receives an emergency broadcast sound signal from the control device 20, it causes the speaker 44 to output an audio broadcast based on the emergency broadcast sound signal. When the room parent unit control unit 45 receives an emergency broadcast sound signal during a call with the collective entrance unit 50, it switches to the call from the collective entrance unit 50 and causes the speaker 44 to output an audio broadcast based on the emergency broadcast sound signal.

[0036] The collective entrance device 50 (an example of an entrance terminal device) is placed in the collective entrance hall EH, which is the entrance to the apartment building, and is a terminal device capable of communicating with the room master devices 40. The collective entrance device 50 includes an input unit 51, a display unit 52, a microphone 53, a speaker 54, an imaging unit 55, a human sensor 56, and a entrance device control unit 57.

[0037] The input unit 51 is, for example, an input device such as a touch panel, key switch, or control button, and receives operations from users such as guests or visitors, and supplies the input information to the entrance device control unit 57. Display unit 52 is, for example, a display device such as a liquid crystal display, and displays various information supplied from entrance unit control unit 57. Display unit 52 displays, for example, a guidance screen, a room number input screen, and the like, when collective entrance unit 50 makes a call with room master unit 40.

[0038] The microphone 53, for example, picks up the voice of the user and supplies the picked-up sound signal to the entrance machine control unit 57. For example, when the collective entrance machine 50 communicates with the room master machine 40, the microphone 53 picks up the voice of a guest or visitor and supplies the voice to the entrance machine control unit 57.

[0039] The speaker 54 outputs (emits) to the outside sounds (e.g., voices, etc.) based on various sound signals supplied from the entrance unit control unit 57. For example, when the collective entrance unit 50 is talking to the room master unit 40, the speaker 54 outputs the voice of the resident of the dwelling unit HM transmitted from the room master unit 40. In addition, for example, when the wireless signal receiving device 10 receives an emergency broadcast while the collective entrance unit 50 is talking to the room master unit 40, the speaker 54 outputs an audio broadcast based on a sound signal generated by the wireless signal receiving device 10 from a wireless signal.

[0040] The imaging unit 55 is, for example, a camera including an imaging element such as a CCD (Charge Coupled Device), and captures facial images of users who are guests or visitors using the collective entrance machine 50. The imaging unit 55 supplies the captured image data to the entrance machine control unit 57.

[0041] The human presence sensor 56 is a sensor that detects the presence of a person around (in the vicinity of) the collective entrance machine 50. When the human presence sensor 56 detects the presence of a person around the collective entrance machine 50, it supplies the entrance machine control unit 57 with information indicating the presence of a person around the collective entrance machine 50.

[0042] The entrance machine control unit 57 is, for example, a processor including a CPU, and performs overall control of the collective entrance machine 50. The entrance machine control unit 57 executes various processes based on input information received by the input unit 51, and causes the display unit 52 to display display information according to various situations. The entrance machine control unit 57 also transmits sound signals picked up by the microphone 53 to the control device 20, and causes the speaker 54 to output sounds (e.g., telephone calls) based on sound signals received from the control device 20.

[0043] The entrance machine control unit 57 controls, for example, the processing of calls between the room master unit 40 and the collective entrance machine 50, the processing of simultaneous broadcasting of emergency broadcasts, etc. When processing calls between the room master unit 40 and the collective entrance machine 50, for example, the entrance machine control unit 57 transmits the sound signal picked up by the microphone 53 and the image data captured by the imaging unit 55 to the control device 20, and causes the room master unit 40 to output the call voice based on the sound signal, and causes the speaker 54 to output the voice based on the sound signal received from the room master unit 40 via the control device 20. The entrance machine control unit 57 also causes the speaker 54 to output the call voice based on the sound signal received from the collective entrance machine 50 via the control device 20.

[0044] Furthermore, when the front door machine control unit 57 receives an emergency broadcast sound signal from the control device 20, it causes the speaker 54 to output an audio broadcast based on the emergency broadcast sound signal. When the front door machine control unit 57 receives an emergency broadcast sound signal during a call with the collective front door machine 50, it switches to the call from the collective front door machine 50 and causes the speaker 44 to output an audio broadcast based on the emergency broadcast sound signal. When the front door machine control unit 57 receives an emergency broadcast sound signal while not in a call with the collective front door machine 50, it does not cause the speaker 44 to output an audio broadcast based on the emergency broadcast sound signal.

[0045] Next, the operation of the wireless broadcasting system 1 according to the present embodiment will be described with reference to the drawings. 2 is a flowchart showing an example of the operation of the control device 20 in this embodiment. Here, an example of an emergency broadcast output process performed by the control device 20 will be described.

[0046] 2, the control unit 21 of the control device 20 first determines whether the wireless signal receiving device 10 has received an emergency activation signal (step S101). The broadcast processing unit 212 of the control unit 21 determines whether the wireless signal receiving device 10 has received an emergency activation signal, for example, based on whether a sound signal is supplied from the wireless signal receiving device 10. If the wireless signal receiving device 10 has received the emergency activation signal (step S101: YES), the broadcast processing unit 212 advances the process to step S102. If the wireless signal receiving device 10 has not received the emergency activation signal (step S101: NO), the broadcast processing unit 212 returns the process to step S101.

[0047] In step S102, the broadcast processing unit 212 determines whether or not the collective entrance unit 50 is busy. If the collective entrance unit 50 is busy (step S102: YES), the broadcast processing unit 212 proceeds to step S104. If the collective entrance unit 50 is not busy (step S102: NO), the broadcast processing unit 212 proceeds to step S103.

[0048] In step S103, the broadcast processing unit 212 transmits an audio signal to all room master units 40 to output an audio broadcast. The broadcast processing unit 212 transmits the audio signal of the emergency broadcast received from the wireless signal receiving device 10 to all room master units 40 to output the audio broadcast of the emergency broadcast from the speaker 44 of each room master unit 40. As a result, each room master unit 40 outputs the audio broadcast of the emergency broadcast from the speaker 44. Note that in this case, the collective entrance unit 50 does not output the audio broadcast of the emergency broadcast from the speaker 54. After processing in step S103, the broadcast processing unit 212 ends the output processing of the emergency broadcast.

[0049] Furthermore, in step S104, the broadcast processing unit 212 transmits an audio signal to all of the room master units 40 and the collective entrance unit 50 to output an audio broadcast. The broadcast processing unit 212 transmits the audio signal of the emergency broadcast received from the wireless signal receiving device 10 to all of the room master units 40 and the collective entrance unit 50 to output the audio broadcast of the emergency broadcast from the speaker 44 of each room master unit 40 and output the audio broadcast of the emergency broadcast from the speaker 54 of the collective entrance unit 50. As a result, each room master unit 40 outputs the audio broadcast of the emergency broadcast from the speaker 44, and the collective entrance unit 50 outputs the audio broadcast of the emergency broadcast from the speaker 54. After the processing of step S104, the broadcast processing unit 212 ends the output processing of the emergency broadcast.

[0050] Next, a specific example of audio output processing for an emergency broadcast by the wireless broadcasting system 1 will be described with reference to FIGS. 3 is a diagram showing an example of the audio output process of an emergency broadcast by the wireless broadcasting system 1 according to this embodiment. Here, the process will be described in the case where the collective entrance unit 50 and the room master unit 40 are not in a call. For convenience of explanation, the description will be given assuming that there are two room master units 40, room master unit 40-1 and room master unit 40-2.

[0051] As shown in Fig. 3, first, the wireless signal receiving device 10 determines whether or not an emergency activation signal has been received (step S201). The wireless signal receiving unit 11 of the wireless signal receiving device 10 determines whether or not an emergency activation signal has been received, for example, contained in a disaster prevention administrative wireless signal transmitted from a local government or a radio wireless signal related to disaster prevention transmitted from a community FM radio station. If the wireless signal receiving unit 11 receives an emergency activation signal (step S201: YES), the wireless signal receiving unit 11 advances the process to step S202. If the wireless signal receiving unit 11 does not receive an emergency activation signal (step S201: NO), the wireless signal receiving unit 11 returns the process to step S201.

[0052] In step S202, the wireless signal receiving device 10 starts up its own device (wireless signal receiving device 10) and generates a sound signal from the wireless signal. That is, the wireless signal receiving unit 11 starts up its own device (wireless signal receiving device 10), and the sound signal generating unit 12 generates a sound signal from the wireless signal received by the wireless signal receiving unit 11.

[0053] Next, the wireless signal receiving device 10 transmits the sound signal to the control device 20 (step S203). The sound signal generating unit 12 transmits to the control device 20 a sound signal (sound signal of an emergency broadcast) based on the generated wireless signal.

[0054] Next, in response to receiving the sound signal, the control device 20 transmits the sound signal to the room master unit 40-1 (step S204) and transmits the sound signal to the room master unit 40-2 (step S205). The broadcast processing unit 212 of the control device 20 executes the process shown in FIG. 2 and transmits the sound signal (sound signal of the emergency broadcast) to all the room master units 40.

[0055] In step S206, the room master unit 40-1 starts outputting an audio broadcast based on the sound signal. The room master unit control unit 45 of the room master unit 40-1 causes the speaker 44 to output an audio broadcast (sound signal of the emergency broadcast) based on the received sound signal (sound signal of the emergency broadcast) in response to the sound signal (sound signal of the emergency broadcast) from the control device 20.

[0056] In step S207, the room master unit 40-2 starts outputting an audio broadcast based on the sound signal. The room master unit control unit 45 of the room master unit 40-2 causes the speaker 44 to output an audio broadcast (an emergency broadcast sound signal) based on the received sound signal (an emergency broadcast sound signal) in response to the sound signal (an emergency broadcast sound signal) from the control device 20.

[0057] 4 is a diagram showing another example of the audio output process of an emergency broadcast by the wireless broadcasting system 1 according to this embodiment. Here, the process will be described when a call is in progress between the collective entrance unit 50 and the room master unit 40. For convenience of explanation, the room master unit 40 will be described as one room master unit 40-1.

[0058] 4, the collective entrance unit 50 and the room master unit 40 are in a call via the control device 20 (step S301). That is, a voice call is performed between the collective entrance unit 50 and the room master unit 40. For example, the collective entrance unit 50 transmits a sound signal picked up by the microphone 53 to the room master unit 40-1 via the control device 20, and the room master unit 40-1 outputs a call voice based on the sound signal to the speaker 44. In addition, the room master unit 40-1 transmits a sound signal picked up by the microphone 43 to the collective entrance unit 50 via the control device 20, and the collective entrance unit 50 outputs a call voice based on the sound signal to the speaker 54.

[0059] Next, the wireless signal receiving device 10 determines whether or not an emergency activation signal has been received (step S302). If the wireless signal receiving unit 11 of the wireless signal receiving device 10 has received the emergency activation signal (step S302: YES), the process proceeds to step S303. If the wireless signal receiving unit 11 has not received the emergency activation signal (step S302: NO), the process returns to step S302.

[0060] In step S303, the wireless signal receiving device 10 starts up its own device (wireless signal receiving device 10) and generates a sound signal from the wireless signal. That is, the wireless signal receiving unit 11 starts up its own device (wireless signal receiving device 10), and the sound signal generating unit 12 generates a sound signal from the wireless signal received by the wireless signal receiving unit 11.

[0061] Next, the wireless signal receiving device 10 transmits the sound signal to the control device 20 (step S304). The sound signal generating unit 12 transmits to the control device 20 a sound signal (sound signal of an emergency broadcast) based on the generated wireless signal.

[0062] Next, in response to receiving the sound signal, the control device 20 transmits the sound signal to the collective entrance unit 50 (step S305) and also transmits the sound signal to the room master unit 40-1 (step S306). The broadcast processing unit 212 of the control device 20 executes the process shown in FIG. 2 and transmits the sound signal (sound signal of the emergency broadcast) to all the room master units 40 and the collective entrance unit 50.

[0063] In step S307, the collective entrance unit 50 starts outputting an audio broadcast based on the sound signal. The entrance unit control unit 57 of the collective entrance unit 50 switches to an audio call with the room master unit 40-1, and in response to the sound signal (sound signal of the emergency broadcast) from the control device 20, outputs an audio broadcast (sound signal of the emergency broadcast) based on the received sound signal (sound signal of the emergency broadcast) from the speaker 54.

[0064] In step S308, the room master unit 40-1 starts outputting an audio broadcast based on the sound signal. The room master unit control unit 45 of the room master unit 40-1 causes the speaker 44 to output an audio broadcast (an emergency broadcast sound signal) based on the received sound signal (an emergency broadcast sound signal) in response to the sound signal (an emergency broadcast sound signal) from the control device 20.

[0065] Next, a modified example of the operation of the control device 20 in this embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing a modified example of the operation of the control device 20 in this embodiment.

[0066] 5, the control unit 21 of the control device 20 first determines whether the wireless signal receiving device 10 has received an emergency activation signal (step S401). If the wireless signal receiving device 10 has received an emergency activation signal (step S401: YES), the broadcast processing unit 212 of the control unit 21 advances the process to step S402. If the wireless signal receiving device 10 has not received an emergency activation signal (step S401: NO), the broadcast processing unit 212 returns the process to step S401.

[0067] In step S402, the broadcast processing unit 212 determines whether or not the collective entrance unit 50 is busy. If the collective entrance unit 50 is busy (step S402: YES), the broadcast processing unit 212 proceeds to step S405. If the collective entrance unit 50 is not busy (step S402: NO), the broadcast processing unit 212 proceeds to step S403.

[0068] In step S403, the broadcast processing unit 212 determines whether or not there is a person around the collective entrance unit 50. For example, the broadcast processing unit 212 acquires the detection result of the human presence sensor 56 of the collective entrance unit 50, and determines whether or not there is a person around the collective entrance unit 50 based on the detection result of the human presence sensor 56. If there is a person around the collective entrance unit 50 (step S403: YES), the broadcast processing unit 212 advances the process to step S405. If there is no person around the collective entrance unit 50 (step S403: NO), the broadcast processing unit 212 advances the process to step S404.

[0069] In step S404, the broadcast processing unit 212 transmits an audio signal to all of the room master units 40 to output an audio broadcast. The broadcast processing unit 212 transmits the audio signal of the emergency broadcast received from the wireless signal receiving device 10 to all of the room master units 40 to output the audio broadcast of the emergency broadcast from the speaker 44 of each room master unit 40. As a result, each room master unit 40 outputs the audio broadcast of the emergency broadcast from the speaker 44. Note that in this case, the collective entrance unit 50 does not output the audio broadcast of the emergency broadcast from the speaker 54. After processing in step S404, the broadcast processing unit 212 ends the output processing of the emergency broadcast.

[0070] Also, in step S405, the broadcast processing unit 212 transmits an audio signal to all of the room master units 40 and the collective entrance unit 50 to output an audio broadcast. The broadcast processing unit 212 transmits the audio signal of the emergency broadcast received from the wireless signal receiving device 10 to all of the room master units 40 and the collective entrance unit 50 to output the audio broadcast of the emergency broadcast from the speaker 44 of each room master unit 40 and output the audio broadcast of the emergency broadcast from the speaker 54 of the collective entrance unit 50. As a result, each room master unit 40 outputs the audio broadcast of the emergency broadcast from the speaker 44, and the collective entrance unit 50 outputs the audio broadcast of the emergency broadcast from the speaker 54. After the processing of step S405, the broadcast processing unit 212 ends the output processing of the emergency broadcast.

[0071] As described above, the wireless broadcasting system 1 according to this embodiment includes a room master unit 40 (intercom device), a wireless signal receiving device 10, and a control device 20. The room master unit 40 is placed in a target location (e.g., a dwelling unit HM). When the wireless signal receiving device 10 receives a wireless signal including a specific wireless signal indicating an emergency broadcast, it generates a sound signal included in the received wireless signal. The control device 20 is capable of simultaneously broadcasting audio to multiple room master units 40, and transmits the sound signal generated by the wireless signal receiving device 10 to the room master unit 40, causing the room master unit 40 to output an audio broadcast based on the sound signal.

[0072] As a result, the wireless broadcasting system 1 according to this embodiment can output an audio broadcast based on a wireless signal received by the wireless signal receiving device 10 to all of the room master units 40 via the control device 20. Therefore, the wireless broadcasting system 1 according to this embodiment can appropriately notify the contents of the emergency broadcast at each target location, such as each dwelling unit HM, without the need to install an individual wireless signal receiving device 10 at each target location.

[0073] Furthermore, since the wireless broadcasting system 1 according to this embodiment broadcasts audio based on the wireless signal received by the wireless signal receiving device 10, it is possible to obtain appropriate information specific to the actual location (e.g., the area where the resident lives) compared to information obtained via the Internet, for example.

[0074] Moreover, the wireless broadcasting system 1 according to this embodiment can be realized, for example, by adding a wireless signal receiving device 10 to an existing intercom system in an apartment building or the like, so that emergency broadcasts can be output from multiple room master units 40. That is, the wireless broadcasting system 1 according to this embodiment can appropriately notify the contents of emergency broadcasts in a target location using a simple method that utilizes an existing system, and at low cost.

[0075] Moreover, the wireless broadcasting system 1 according to this embodiment includes a collective entrance unit 50 (entrance terminal device) that is placed at the entrance of the apartment building and is capable of communicating with the room master unit 40. The target location is a dwelling unit HM of the apartment building. The control device 20 transmits a sound signal generated by the wireless signal receiving device 10 to the collective entrance unit 50, and causes the collective entrance unit 50 to output an audio broadcast based on the sound signal.

[0076] As a result, the wireless broadcasting system 1 according to this embodiment allows each dwelling unit HM in the apartment building to properly hear the emergency broadcast. In addition, the wireless broadcasting system 1 according to this embodiment outputs the emergency broadcast to people at the collective entrance device 50 (entrance terminal device), so that the contents of the emergency broadcast can be properly notified to them.

[0077] In addition, in this embodiment, when the wireless signal receiving device 10 receives a specific wireless signal during a call between the room master unit 40 and the collective entrance unit 50, the control device 20 switches from the call between the room master unit 40 and the collective entrance unit 50 to an audio broadcast, and outputs the audio broadcast to the room master unit 40 and the collective entrance unit 50. As a result, the wireless broadcasting system 1 according to this embodiment can properly inform people at the collective entrance device 50 (entrance terminal device) of the contents of the emergency broadcast.

[0078] In addition, in this embodiment, when a call is not in progress between the room master unit 40 and the collective entrance unit 50, the control device 20 does not cause the collective entrance unit 50 to output an audio broadcast. As a result, the wireless broadcasting system 1 according to this embodiment can prevent unnecessary broadcasts from being output, by appropriately informing people of the contents of the emergency broadcast only when there is someone at the collective entrance unit 50 (entrance / exit terminal device).

[0079] In the present embodiment, the wireless signal is a disaster prevention administrative wireless signal transmitted from a local government or a radio wireless signal related to disaster prevention transmitted from a community FM radio station. As a result, the wireless broadcasting system 1 according to this embodiment can properly inform users of the contents of emergency broadcasts specific to the area, for example, sent by local governments or community FM radio stations.

[0080] In this embodiment, the specific wireless signal is an emergency startup signal that automatically starts up the wireless signal receiving device 10. As a result, in the wireless broadcasting system 1 according to the present embodiment, the wireless signal receiving device 10 is automatically started up by an emergency broadcast, so that the wireless broadcasting system 1 can automatically output an emergency broadcast in the event of an emergency while reducing power consumption during normal times.

[0081] In this embodiment, the collective entrance machine 50 includes a human presence sensor 56 that detects the presence of a person around the collective entrance machine 50. When the human presence sensor 56 detects the presence of a person around the collective entrance machine 50, the control device 20 may cause the collective entrance machine 50 to output an audio broadcast. As a result, the wireless broadcasting system 1 according to this embodiment can cause the collective entrance unit 50 to appropriately output an emergency broadcast when there are people around the collective entrance unit 50.

[0082] Moreover, the wireless broadcasting method according to the present embodiment is a wireless broadcasting method for a wireless broadcasting system 1 including a room master unit 40 arranged at a target location, a wireless signal receiving device 10, and a control device 20 capable of simultaneously broadcasting audio to multiple room master units 40, and includes a first step and a second step. In the first step, when the wireless signal receiving device 10 receives a wireless signal including a specific wireless signal indicating an emergency broadcast, it generates a sound signal included in the received wireless signal. In the second step, the control device 20 transmits the sound signal generated by the wireless signal receiving device 10 to the room master unit 40, causing the room master unit 40 to output an audio broadcast based on the sound signal. As a result, the wireless broadcasting method according to the present embodiment has the same effects as the wireless broadcasting system 1 described above, and can properly notify the contents of the emergency broadcast in a target location.

[0083] [Second embodiment] Next, a wireless broadcasting system 1a according to a second embodiment will be described with reference to FIG. In this embodiment, a modified example that enables emergency broadcasts to be recorded and played back will be described.

[0084] FIG. 6 is a block diagram showing an example of a wireless broadcasting system 1a according to this embodiment. 6, the wireless broadcasting system 1a includes a wireless signal receiving device 10, a control device 20, a management room master unit 30, a plurality of room master units 40a (40a-1, 40a-2, ...), and a collective entrance unit 50. In this embodiment, the wireless broadcasting system 1a will be described as an example of a system that outputs an emergency broadcast to each dwelling unit in a collective housing such as an apartment building.

[0085] 6, the same components as those shown in FIG. 1 are given the same reference numerals and the description thereof will be omitted. A wireless broadcasting system 1a according to this embodiment is similar to that of the first embodiment, except that the configuration of the room master unit 40a is different.

[0086] The room master unit 40a (an example of an intercom device) is a device that is arranged in each dwelling unit HM of an apartment building and used as an intercom. In this embodiment, the room master units 40a-1, 40a-2, ... each have the same configuration, and will be described as the room master unit 40a when referring to any room master unit in the wireless broadcasting system 1a or when no particular distinction is made. The room master unit 40a includes an input unit 41, a display unit 42, a microphone 43, a speaker 44, a room master unit control unit 45a, and a voice storage unit 46.

[0087] The audio storage unit 46 stores the audio signal of the emergency broadcast received from the control device 20. The room parent unit control unit 45a is, for example, a processor including a CPU, and controls the room parent unit 40a in an integrated manner. The basic functions of the room parent unit control unit 45a are similar to those of the room parent unit control unit 45 of the first embodiment described above. The room parent unit control unit 45a stores the emergency broadcast sound signal received from the control device 20 in the audio storage unit 46. For example, in response to an operation of the input unit 41, the room parent unit control unit 45a reads out the emergency broadcast sound signal stored in the audio storage unit 46, and outputs the emergency broadcast sound based on the sound signal to the speaker 44. The room parent unit control unit 45a may be configured to repeatedly play back the emergency broadcast sound at a predetermined time interval.

[0088] As described above, in the wireless broadcasting system 1a according to this embodiment, the room master unit 40a includes an audio storage unit 46, and the room master unit control unit 45a stores the sound signal of the emergency broadcast received from the control device 20 in the audio storage unit 46. The room master unit control unit 45a causes the speaker 44 to output an audio broadcast based on the audio signal stored in the audio storage unit 46.

[0089] As a result, the wireless broadcasting system 1a according to this embodiment is capable of repeatedly playing back emergency broadcasts as needed, and even if a user misses or cannot hear the contents of an emergency broadcast properly, the emergency broadcast can be played back to properly and reliably notify the user of the contents of the emergency broadcast.

[0090] [Third embodiment] Next, a wireless broadcasting system 1b according to a third embodiment will be described with reference to FIG. In this embodiment, a modified example in which an emergency broadcast is output using the control room master unit 30a will be described.

[0091] FIG. 7 is a block diagram showing an example of a wireless broadcasting system 1b according to this embodiment. 7, the wireless broadcasting system 1b includes a wireless signal receiving device 10, a control device 20, a management room master unit 30a, a plurality of room master units 40 (40-1, 40-2, ...), and a collective entrance unit 50. In this embodiment, the wireless broadcasting system 1b will be described as an example of a system that outputs an emergency broadcast to each dwelling unit in a collective housing such as an apartment building.

[0092] 7, the same components as those shown in FIG. 1 are given the same reference numerals and the description thereof will be omitted. The wireless broadcasting system 1b of this embodiment is similar to the first embodiment except that the configuration of the management room master unit 30a is different and the sound signal generated by the wireless signal receiving device 10 is transmitted to the control device 20 via the management room master unit 30a.

[0093] When the management room master unit 30a receives an emergency broadcast sound signal generated by the wireless signal receiving device 10, it uses the function of the management room master unit 30a to simultaneously broadcast to the residents of each dwelling unit HM, and outputs the emergency broadcast to the room master units 40 of each dwelling unit HM via the control device 20. The management room master unit 30a includes an input unit 31, a display unit 32, a microphone 33, a speaker 34, and a management master unit control unit 35a.

[0094] The management master unit control unit 35a is, for example, a processor including a CPU, and controls the management room master unit 30a in an integrated manner. The basic functions of the management master unit control unit 35a are the same as those of the management master unit control unit 35 of the first embodiment described above. Furthermore, when the management master unit control unit 35a receives an emergency broadcast sound signal generated by the wireless signal receiving device 10, it uses the function of simultaneous broadcasting to the room master units 40 to transmit the sound signal to the control device 20, causing the multiple room master units 40 and the collective entrance unit 50 to output an audio broadcast.

[0095] As described above, the wireless broadcasting system 1b of this embodiment utilizes the simultaneous broadcasting function of the management parent unit control unit 35a to the room parent units 40 to output audio broadcasts to multiple room parent units 40 and the collective entrance unit 50.

[0096] As a result, the wireless broadcasting system 1b according to this embodiment can appropriately notify the contents of an emergency broadcast in a target location using a simpler method that utilizes an existing system, and at low cost.

[0097] The present invention is not limited to the above-described embodiments, and can be modified without departing from the spirit of the present invention. For example, in each of the above embodiments, an example has been described in which the wireless broadcasting system 1 (1a, 1b) is an intercom system for an apartment building and the target location is a dwelling unit HM, but the present invention is not limited to this and may be applied to, for example, a nurse call system in a hospital or an internal telephone system in a company.

[0098] In addition, in each of the above embodiments, the wireless broadcasting system 1 (1a, 1b) is described as being equipped with a collective entrance unit 50, but this is not limited thereto, and the wireless broadcasting system 1 (1a, 1b) may be in a form that does not include a collective entrance unit 50.

[0099] In addition, in each of the above embodiments, an example has been described in which the wireless broadcasting system 1 (1a, 1b) outputs an emergency broadcast to all of the room master units 40 in each dwelling unit HM, but the emergency broadcast may also be output to some of the multiple room master units 40 by setting each room master unit 40.

[0100] In addition, in each of the above embodiments, an example has been described in which the control device 20 does not transmit an audio signal to the collective entrance device 50 when the collective entrance device 50 is not to output an audio broadcast, but the present invention is not limited to this, and the collective entrance device 50 may not output an audio broadcast based on an audio signal received from the control device 20. In other words, the collective entrance device 50 may determine whether or not to output an audio broadcast such as an emergency broadcast.

[0101] In addition, in each of the above embodiments, an example has been described in which the wireless signal receiving device 10, the control device 20, and the control room master unit 30 are arranged in the management room MR, but some of these may be arranged outside the management room MR. In addition, two or three of the wireless signal receiving device 10, the control device 20, and the management room master unit 30 may be integrated into one device in the management room MR. For example, the control device 20 may include the function of the wireless signal receiving device 10, and the management room master unit 30 may include the function of the wireless signal receiving device 10.

[0102] In addition, in each of the above embodiments, an example has been described in which the wireless broadcasting system 1 (1a, 1b) outputs an audio broadcast of an emergency broadcast to the collective entrance unit 50 during a call with the room master unit 40 or when a person is detected in the vicinity, but the audio broadcast of an emergency broadcast may be output at all times, or may be output depending on other conditions.

[0103] In addition, in each of the above embodiments, an example has been described in which the collective entrance machine 50 detects the presence of people in the vicinity using the human presence sensor 56, but this is not limited to this, and for example, the presence of people in the vicinity may be detected by images captured by the imaging unit 55 or surrounding sounds captured by the microphone 53.

[0104] Each of the components of the wireless broadcasting system 1 (1a, 1b) described above has a computer system therein. A program for implementing the functions of each of the components of the wireless broadcasting system 1 (1a, 1b) described above may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to perform processing in each of the components of the wireless broadcasting system 1 (1a, 1b) described above. Here, "reading a program recorded on a recording medium into a computer system and executing it" includes installing the program into a computer system. The "computer system" referred to here includes hardware such as an OS and peripheral devices.

[0105] Furthermore, a "computer system" may include multiple computer devices connected via a network including the Internet, WAN, LAN, dedicated lines, and other communication lines. Furthermore, a "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into a computer system. In this way, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM.

[0106] The recording medium also includes a recording medium installed inside or outside and accessible from a distribution server to distribute the program. The program may be divided into a plurality of parts, downloaded at different times, and then combined by each component of the wireless broadcasting system 1 (1a, 1b), or each divided program may be distributed by a different distribution server. Furthermore, the "computer-readable recording medium" includes a recording medium that holds a program for a certain period of time, such as a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network. The program may be a recording medium for implementing part of the above-mentioned functions. Furthermore, the program may be a so-called difference file (difference program) that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0107] In addition, some or all of the above-mentioned functions may be realized as an integrated circuit such as LSI (Large Scale Integration). Each of the above-mentioned functions may be individually processed, or some or all of the functions may be integrated into a processor. The integrated circuit method is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, if an integrated circuit technology that can replace LSI appears due to advances in semiconductor technology, an integrated circuit based on that technology may be used. [Explanation of symbols]

[0108] 1, 1a, 1b Radio Broadcasting System 10. Radio signal receiving device 11 Wireless signal receiver 12 Sound signal generator 20 Control device 21 Control section 30, 30a Management room main unit 31, 41, 51 Input section 32 42 52 Display section 33, 43, 53 Mike 34, 44, 54 speakers 35, 35a Management parent unit control section 40, 40-1, 40-2, 40a, 40a―1, 40a-2 Room master unit 45, 45a Room master unit control unit 50 Collective entrance machine 55 Imaging unit 56 Human Sensor 57 Entrance machine control unit 211 Call Processing Unit 212 Broadcast Processing Section EH Public Entrance Hall HM Residence MR management room

Claims

1. An intercom device disposed at a target location; An entrance terminal device that is arranged at an entrance of the apartment building and is capable of communicating with the intercom device; a wireless signal receiving device capable of receiving a wireless signal indicating emergency information; Equipped with When the wireless signal receiving device receives a wireless signal indicating emergency information, When the intercom device and the entrance / exit terminal device are in a call, the entrance / exit terminal device issues a notification based on the emergency information, When the intercom device and the entrance / exit terminal device are not in communication, the entrance / exit terminal device does not issue a notification based on the emergency information.

1. A radio broadcasting system comprising:

2. An intercom device to be placed at a target location; An entrance terminal device that is arranged at an entrance of the apartment building and is capable of communicating with the intercom device; A human presence sensor that detects the presence of a person around the entrance / exit terminal device; a wireless signal receiving device capable of receiving a wireless signal indicating emergency information; Equipped with When the wireless signal receiving device receives a wireless signal indicating emergency information and the human presence sensor detects the presence of a person around the entrance / exit terminal device, the entrance / exit terminal device issues a notification based on the emergency information.

1. A radio broadcasting system comprising:

3. The radio signal is a disaster prevention administrative radio signal transmitted from a local government or a disaster prevention related radio signal transmitted from a community FM radio station.

3. The radio broadcasting system according to claim 1 or 2.

4. The wireless signal is an emergency start-up signal that automatically starts up the wireless signal receiving device.

4. The wireless broadcasting system according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

5. A wireless broadcasting method for a wireless broadcasting system including an intercom device disposed at a target location, an entrance / exit terminal device disposed at an entrance / exit of an apartment building and capable of communicating with the intercom device, and a wireless signal receiving device capable of receiving a wireless signal indicating emergency information, comprising: When the wireless signal receiving device receives a wireless signal indicating emergency information, When the intercom device and the entrance / exit terminal device are in a call, the entrance / exit terminal device issues a notification based on the emergency information, When the intercom device and the entrance / exit terminal device are not in communication, the entrance / exit terminal device does not issue a notification based on the emergency information.

13. A radio broadcasting method comprising:

6. A wireless broadcasting method for a wireless broadcasting system including an intercom device disposed at a target location, an entrance / exit terminal device disposed at an entrance / exit of an apartment building and capable of communicating with the intercom device, a human presence sensor that detects the presence of a person around the entrance / exit terminal device, and a wireless signal receiving device capable of receiving a wireless signal indicating emergency information, comprising: When the wireless signal receiving device receives a wireless signal indicating emergency information and the human presence sensor detects the presence of a person around the entrance / exit terminal device, the entrance / exit terminal device issues a notification based on the emergency information.

13. A radio broadcasting method comprising:

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