JP2010026544A - Communication equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To predetect the occurrence of earthquake, to use a slave unit as a lighting fixture when power failure occurs due to earthquake, and to reduce power consumption. <P>SOLUTION: When receiving the detection notification of earthquake early warning from a master unit (S210 step), the salve unit of communication equipment performs the lighting or blink of a light emitting member, and interrupts power supply to a radio part for performing radio communication with the master unit (S230, S240 steps). Thus, it is possible to use the slave unit instead of a flashlight, and to reduce (or eliminate) power consumption at the tuner part of the slave unit when earthquake occurs. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication device connected to a telephone line provided by a communication company such as NTT, and more particularly to a communication device that can be used as a lighting fixture when an emergency earthquake warning distributed by the Japan Meteorological Agency is detected.

  In recent years, with the development of communication infrastructure, various additional services related to communication have become widespread. In particular, telephone devices that can receive various services by connecting to a wide-area communication network such as an IP telephone network or the Internet in addition to a general telephone line are widely used.

  As one of the functions of such a telephone device, there is a telephone device having a function of receiving an emergency earthquake bulletin distributed by the Japan Meteorological Agency when an earthquake occurs. Earthquake early warning is an information distribution service that will be implemented from October 1, 2007 AD. The user can use this service by purchasing a telephone device corresponding to the earthquake early warning and making a contract with a distribution service company for the earthquake early warning.

  By connecting the telephone device to a wide area communication network such as the Internet, the contract user can receive various types of information regarding the earthquake through the communication network when an earthquake occurs. The telephone device that received the earthquake occurrence notification uses the regional information recorded in advance in the telephone device, etc., and feels the strongest to the human body among the predicted seismic intensity and main motion (= earthquake motion) in the area where the telephone device is installed. The estimated time at which the portion (usually S wave) will reach is calculated. The calculation result is notified to the user, for example, by displaying an image on a liquid crystal panel or outputting sound through a speaker. As a result, the user can cope with an earthquake such as being hidden under the desk before the main motion arrives from the epicenter.

As a device capable of receiving the earthquake early warning as described above, the present applicant, when receiving the earthquake early warning, started to turn on the LED of the cordless phone cordless handset, enabling the cordless phone to be used as a flashlight Filed a communication device (Patent Document 1).
Japanese Patent Application No. 2007-251501

  However, since the communication device of Patent Document 1 is a cordless telephone device, it is necessary for the handset to constantly monitor the presence or absence of a radio signal from the base device. For this reason, when the cordless handset starts to light the LED (because power is consumed even in the tuner part), the battery level of the cordless handset decreases drastically, reducing the opportunity to use the cordless handset instead of a flashlight. Will be allowed to.

The communication device according to claim 1 includes an input unit, a light emitting unit that lights or blinks, a wireless communication unit that transmits and receives a radio signal, and a control unit, and the control unit is connected to the input unit. When it is determined that there is a predetermined operation, the light emitting unit is turned on or blinked, and power supply to the wireless communication unit is stopped.
The communication device according to claim 2 includes an input unit, a light emitting unit that lights or blinks, a wireless communication unit that transmits and receives a radio signal, and a control unit, wherein the control unit is connected to the input unit. When it is determined that there is a predetermined operation, the light emitting unit is turned on or blinked, and the wireless communication unit is controlled to stop the wireless signal detection operation.
The communication device according to claim 3 includes a light emitting unit that lights or blinks, a wireless communication unit that can receive information on a disaster, and a control unit, and the control unit includes the wireless communication unit related to a disaster. When the information is received, the light emitting unit is turned on or blinked, and power supply to the wireless communication unit is stopped.
The communication device according to claim 4 includes a light emitting unit that lights or blinks, a wireless communication unit that can receive information about a disaster, and a control unit, wherein the control unit is related to the disaster. When the information is received, the light emitting unit is turned on or blinked, and the wireless communication unit is controlled to stop the detection operation of the wireless signal.
The communication device according to claim 5 performs transmission / reception of a radio signal for performing a call between a light emitting unit that lights or blinks, a disaster information receiving unit that can receive information on a disaster, and another communication device. A wireless communication unit; and a control unit. The control unit turns on or blinks the light-emitting unit and stops power supply to the wireless communication unit when the disaster information receiving unit receives information about the disaster. It is characterized by doing.
The communication device according to claim 6 performs transmission / reception of a radio signal for performing a call between the light emitting unit that is turned on or blinking, the disaster information receiving unit that can receive information about the disaster, and another communication device. A wireless communication unit and a control unit, and the control unit turns on or blinks the light-emitting unit and stops the detection operation of the radio signal when the disaster information receiving unit receives information on the disaster. The wireless communication unit is controlled.

  According to the first aspect of the present invention, when a predetermined key operation is performed, the light emitting unit is turned on or blinked. Therefore, not only can the communication device be used as a flashlight in the event of an earthquake, but also wireless communication is performed simultaneously with the lighting or blinking of the light emitting unit. Since the power supply to the unit is stopped, the light emitting unit can be lit or blinked for as long as possible when the communication device is used instead of the flashlight.

  According to the second aspect of the present invention, since the light emitting unit is turned on or blinked when a predetermined key operation is performed, the communication device can be used in place of the flashlight in the event of an earthquake or the like, and wireless communication is performed simultaneously with the lighting or blinking of the light emitting unit. Since the unit stops the wireless signal detection operation, the light emitting unit can be turned on or blinked for as long as possible when the communication device is used instead of the flashlight.

  The invention of claim 3 turns on or flashes the light-emitting unit when receiving information about a disaster, so that the communication device can be used in place of a flashlight in the event of an earthquake, etc. In order to stop the power supply to the LED, it is possible to turn on or blink the light emitting unit for as long as possible when the communication device is used instead of the flashlight.

  The invention according to claim 4 illuminates or flashes the light-emitting unit when receiving information related to a disaster, so that not only can the communication device be used in place of a flashlight in the event of an earthquake, but also the wireless communication unit simultaneously with the lighting or flashing of the light-emitting unit However, when the communication device is used instead of the flashlight, the light emitting unit can be lit or blinked for as long as possible.

  The invention of claim 5 is to not only use the communication device instead of a flashlight in the event of an earthquake or the like, but also to make a call simultaneously with the lighting or blinking of the light emitting unit in order to turn on or blink the light emitting unit when receiving information on disaster. In order to operate the disaster information receiving unit that stops the power supply to the wireless communication unit used for communication and receives information about disasters, when the communication device is used instead of a flashlight, the light emitting unit is turned on or blinked for as long as possible Disaster information can be received reliably.

  The invention of claim 6 is to not only use the communication device in place of a flashlight in the event of an earthquake or the like, but also to make a call simultaneously with the lighting or blinking of the light emitting unit in order to turn on or blink the light emitting unit upon receiving information on disaster. In order to operate the disaster information receiving unit that stops the power supply to the wireless communication unit used for communication and receives information about disasters, when the communication device is used instead of a flashlight, the light emitting unit is turned on or blinked for as long as possible Disaster information can be received reliably.

Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.
<1. About the configuration of the telephone system>
FIG. 1 is a block diagram showing a configuration of a telephone system including a cordless telephone apparatus (= communication apparatus) of the present invention. This system includes at least a master unit 1 (= main communication device), a slave unit 2 (= sub communication device), a wired LAN 41, a wireless communication network 42, an IP telephone router 51, a broadband router 52, a gateway 53, an IP telephone network 61, An Internet 62, a PSTN network 63 (= Public Switched Telephone Network), and a subscriber telephone device 71 are configured.
The cordless telephone apparatus of the present invention is a cordless telephone apparatus that can be connected to an IP communication network, and corresponds to the parent device 1 and the plurality of child devices 2 (child devices A2a to C2c) in the figure. The base unit 1 is an IP telephone device capable of voice communication via a telephone network by being connected to the wired LAN 41. The base unit 1 has a relay function for relaying communication between the wired LAN 41 and the wireless communication network 42. Accordingly, the slave unit 2 described later can perform a call via the IP telephone network 61 or the PSTN network 63 by relaying the master unit 1. The base unit 1 also has a function of receiving an emergency self-breaking report distributed by the Japan Meteorological Agency via the Internet 62. The details of the internal structure of base unit 1 will be described later.

  The handset 2 is connected to a wireless communication network 42, which will be described later, and communicates with the base unit 1 so that the handset 2 can perform voice communication with other telephone devices via the IP telephone network 61 and the PSTN network 63. It is a communication device. The details of the internal configuration of the slave unit 2 will be described later.

  The wired LAN 41 is a local network in which the parent device 1, the IP telephone router 51, the broadband router 52, the gateway 53, and the like are connected by wire. Each of the above devices can communicate with each other by being connected to the wired LAN 41. Examples of physical means constituting the wired LAN 41 include 10BASE-T (standardized as IEEE802.3i) and 100BASE-TX (standardized as IEEE802.3u) using a twisted pair cable.

The wireless communication network 42 is a small-scale communication network in which the parent device 1 and the plurality of child devices 2 are wirelessly connected. Specifically, for example, communication is performed using a communication system based on FHSS-WDCT (Frequency Hopping Spread Spectrum-Worldwide Digital Cordless Telephone) using radio waves in a frequency band of 2.4 GHz (gigahertz).
The IP telephone router 51 and the broadband router 52 are network relay devices for interconnecting a plurality of IP networks. Specifically, the transfer is performed by analyzing a part of the protocol of the network layer (third layer) and the transport layer (fourth layer) in the OSI (Open Systems Interconnection) reference model. In the present embodiment, the IP telephone router 51 has a role of connecting two IP networks of the wired LAN 41 and the IP telephone network 61 to each other. The broadband router 52 has a role of connecting two IP networks of the wired LAN 41 and the Internet 62 to each other.
The gateway 53 is a protocol converter for interconnecting networks having different protocol systems. For example, the gateway 53 connects the wired LAN 41 and the PSTN network 63 and performs signal conversion using a signaling protocol such as SIP, thereby enabling communication between both networks.
The IP telephone network 61 is a communication network using VoIP (Voice over Internet Protocol) technology for part or all of the telephone network, and FTTH (Fiber To The Home) and ADSL (Asymmetric Digital Subscriber) are used as communication lines. A so-called broadband line is used. Note that VoIP is a technique in which voice is compressed by various encoding methods, converted into packets, and transmitted in real time over an IP network. As a result, the IP telephone network 61 can provide a videophone service for transmitting and receiving images in addition to a voice call service.

The Internet 62 is a wide area communication network constructed by interconnecting networks based on communication protocols. An international communication network is constructed by interconnecting large and small computer networks. As a communication protocol, TCP / IP is mainly adopted as a standard protocol.
The PSTN network 63 is a general subscriber telephone line network. It is used to make a voice call by connecting a telephone device to the end and connecting to a communication partner by a circuit switching method. The subscriber telephone device 71 is a telephone device that allows a telephone subscriber to make a voice call with another subscriber telephone device or an IP telephone device using the PSTN network 63.
<2. About the internal structure of the main unit>
FIG. 2 is a block diagram showing the inside of the base unit 1 according to the first embodiment of the present invention. The base unit 1 is configured to include at least a control unit 11, a memory 12, a display unit 13, an input unit 14, a communication control unit 15, an antenna device 16, an audio signal processing unit 17, a speaker 18, and a microphone 19. .

  The control unit 11 is a central processing unit for performing overall control of communication control processing (voice data transmission / reception, outgoing call execution, incoming call detection, etc.) by controlling each unit of the base unit 1. In addition, the control unit 11 includes a breaking news reception unit 11a and an earthquake detection transmission unit 11b as functional units realized by executing a program on the arithmetic processing device provided in the control unit 11.

  The breaking news receiving unit 11a determines that an earthquake has been detected by receiving an emergency earthquake breaking news from the Internet 62 using the communication control unit 15. When the occurrence of an earthquake is detected, an earthquake detection notification is given to the next earthquake detection transmitter 11b. Further, based on the data included in the earthquake early warning and the regional information recorded in the memory 12, the predicted seismic intensity and the predicted arrival time of the main motion in the region where the base unit 1 is installed are calculated.

  The earthquake detection transmission unit 11 b transmits the detection notification given from the breaking news reception unit 11 a to the child device 2 using the communication control unit 15. In addition, the earthquake detection transmission part 11b performs detection notification transmission to the subunit | mobile_unit 2 whenever a detection notification is given by the bulletin reception part 11a.

  The memory 12 is a medium for temporarily recording various data held by the parent device 1, and is configured by, for example, a writable RAM (Random Access Memory). The memory 12 serves as a buffer memory for temporarily recording processing data when various control processes are performed by the control unit 11, instruction commands received from the user, and the like. In addition, it has a role of recording regional information for calculating the predicted seismic intensity and the predicted arrival time of main motion for each region.

  The display unit 13 displays various information (for example, a caller telephone number at the time of incoming call) held by the parent device 1 to the user. The display unit 13 uses, for example, a small display device that consumes less power, such as a liquid crystal panel.

  The input unit 14 is for a user to perform various operations (for example, input of a telephone number of a partner with whom a call is made) for performing communication using the parent device 1. The input unit 14 is usually composed of a plurality of buttons such as numeric buttons and redial buttons.

  The communication control unit 15 is a communication interface for connecting the parent device 1 to the wired LAN 41. The communication control unit 15 can perform incoming call processing, outgoing call processing, and the like in the IP telephone system by communicating with a call control server (not shown) connected to the wired LAN 41. In addition, the communication control unit 15 controls wireless communication via the wireless communication network 42 by the antenna device 16.

  The antenna device 16 is a wireless communication device for transmitting and receiving wireless communication radio waves to and from the handset 2. The antenna device 16 performs wireless communication in accordance with a predetermined communication standard, for example, a communication system conforming to FHSS-WDCT (Frequency Hopping Spread Spectrum-Worldwide Digital Cordless Telephone). Thereby, voice communication, data communication, etc. can be performed with the subunit | mobile_unit 2. FIG.

The audio signal processing unit 17 performs a decoding process on the audio data input by the communication control unit 15 and provides the audio signal to the speaker 18. The audio signal processing unit 17 performs predetermined encoding processing on the audio signal input from the microphone 19 to generate audio data, and supplies the audio data to the communication control unit 15. As a result, the audio data is transmitted to another telephone device connected through the wired LAN 41, the wireless communication network 42, the IP telephone network 61, or the like.
<3. About the internal structure of the slave unit>
FIG. 3 is a block diagram showing the inside of the handset 2 according to the first embodiment of the present invention. The handset 2 includes at least a control unit 21, a memory 22, a display unit 23, an input unit 24, a communication control unit 25, an antenna device 26, an audio signal processing unit 27, a speaker 28, a microphone 29, a light emitting unit 30, a battery 31, and The illumination unit 80 is configured to be included.

  The control unit 21 is a central processing unit for performing overall control of communication control processing (voice data transmission / reception, outgoing call execution, incoming call detection, etc.) by controlling each unit of the slave unit 2. Moreover, the control part 21 is provided with the earthquake detection receiving part 21a and the light emission amount adjustment part 21b as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 21 is provided.

  The earthquake detection receiving unit 21a determines whether or not various types of information received from the base unit 1 includes an emergency earthquake warning detection notification. And when it determines with the detection notification being included, the message | telegram which shows an earthquake detection is given to the light emission amount adjustment part 21b.

  When the light emission amount adjusting unit 21b is given a telegram indicating earthquake detection from the earthquake detection receiving unit 21a, the light emitting unit 30 is provided with a part or all of the light emitting members (not shown) included in the light emitting unit 30. An instruction is given to light up at a predetermined light emission amount, for example, a maximum light emission amount. In addition, the lighting unit 80 is instructed to be turned on. As the light emitting member that instructs lighting, for example, button illumination (not shown) installed behind an operation button group provided in the input unit 24, a liquid crystal panel backlight (not shown) provided in the display unit 23, or the like is used.

  Further, the light emission amount adjusting unit 21b may be configured to prohibit all light emission control processing except the lighting processing for the light emitting unit 30 and the illumination unit 80 after being given a telegram indicating earthquake detection. For example, the incoming lamp is not blinked at the time of an incoming call, and the light emission amount adjustment processing of the liquid crystal panel backlight is not performed. Thereby, only the lighting process using a light emitting member can be implemented preferentially. The above state is released by, for example, removing the battery of the slave unit or inputting a predetermined command from the outside.

  The memory 22 is a medium for temporarily recording various data held by the child device 2, and is configured by, for example, a writable RAM (Random Access Memory). The memory 22 serves as a buffer memory for temporarily recording processing data when various control processes are performed by the control unit 21, instruction commands received from the user, and the like.

  The display unit 23 displays various kinds of information (for example, a caller telephone number at the time of incoming call) held by the handset 2 to the user. As the display unit 23, for example, a small and low power consumption display device such as a liquid crystal panel is used. A backlight is installed behind the LCD panel so that the display contents can be confirmed even in a dark place.

  The input unit 24 is for a user to perform various operations (for example, input of a telephone number of a partner with whom a call is made) for performing communication using the handset 2. The input unit 24 is usually composed of a plurality of buttons such as numeric buttons and redial buttons. A light emitting member such as an LED is provided behind each button, and each button can be illuminated from behind by control by a light emitting unit 30 described later.

  The communication control unit 25 controls wireless communication by the antenna device 26. Thereby, the subunit | mobile_unit 2 can communicate with the main | base station 1 connected to wireless LAN42. Further, by performing communication with a call control server (not shown) via the base unit 1, it is possible to perform incoming call processing, outgoing call processing, and the like in the IP telephone system.

  Since the antenna device 26 to the microphone 29 have the same configuration as the antenna device 16 to the microphone 19 of the parent device 1, description thereof is omitted here.

  The light emitting unit 30 is a lighting device including a light emitting member such as an LED. For example, the light emitting unit 30 performs light emission control of a light emitting member such as button illumination of an operation button included in the input unit 24, an incoming lamp that is turned on when an incoming call is received, or a backlight of a liquid crystal panel. In addition, the light emitting unit 30 turns on the light emitting member with a predetermined light emission amount according to an instruction from the light emission amount adjusting unit 21b.

  The battery 31 is supplied with electric power from an external power source (not shown) and temporarily stores the electric power. For example, a rechargeable alkaline battery or a lithium ion battery is used.

The illumination unit 80 is an illumination device installed at the upper end of the surface of the slave unit 2. The illumination unit 80 is not lit during normal operation. Alternatively, it may be used as an incoming call notification lamp or the like. The illuminating unit 80 is lit with a predetermined light emission amount according to an instruction from the light emission amount adjusting unit 21b when the earthquake detection receiving unit 21a receives the detection notification of the earthquake early warning. Details of the illumination unit 80 will be described later.
<3. External configuration of slave unit>
FIG. 6 is an external view showing the external appearance of the handset 2 according to the first embodiment of the present invention. 6A is an external view of the handset 2 viewed from the side, FIG. 6B is an external view of the handset 2 viewed from the front, and FIG. 6C is a view of the handset 2 viewed from the bottom. FIG.

  FIG. 6 is an external view showing the external structure of the handset 2 according to the first embodiment of the present invention. 6A is an external view of the handset 2 viewed from the side, FIG. 6B is an external view of the handset 2 viewed from the front, and FIG. 6C is a view of the handset 2 viewed from the bottom. FIG.

As shown in FIG. 6, the subunit | mobile_unit 2 is provided with the display part 23, the input part 24, the antenna device 26, the speaker 28, the microphone 29, and the illumination part 80 in the front. Moreover, the battery 31 which can be charged is provided in the bottom part. Behind the display unit 23 and the input unit 24, a light emitting member (not shown) provided in the light emitting unit 30 is provided and can be lit as necessary.
<5. About the configuration of the lighting unit>
FIG. 7 is a perspective view showing an example of the internal structure of the illumination unit 80. The illumination unit 80 is configured to include at least a high-intensity LED 81, a reflection member 82, and a transparent member 83. The high-intensity LED 81 is a light emitting member used for an LED light or the like. Although the detailed specification and emission color of the high-intensity LED 81 are not particularly limited, it is desirable to use a white light LED because it is for illumination.

  The reflecting member 82 is a member for reflecting light rays made of aluminum foil or glass. The reflecting member 82 is used to reflect, out of the light beams emitted from the high-intensity LED 81, the light beam emitted in the main body direction (downward in the example shown in FIG. 7) of the child device 2 to the outside of the child device 2. .

The transparent member 83 is a protective member that prevents the two members from being exposed to the outside of the slave unit 2 by covering the high-intensity LED 81 and the reflection member 82. The transparent member 83 is made of, for example, a material such as plastic having a certain level of strength. In addition, the raw material which forms the reflection member 82 and the transparent member 83 is not limited above, In the range which does not deviate from the range of this invention, it can change suitably.
(6. Earthquake response processing)
Here, regarding the earthquake response processing at the time of receiving the earthquake early warning of the master unit 1 and the slave unit 2 in the first embodiment of the present invention, the block diagrams of FIGS. 1 to 3 and the flowcharts of FIGS. And will be described.

  FIG. 4 is a processing flow of the base unit 1 in preparation for the occurrence of an earthquake. The processing flow shown in FIG. 4 can be started at an arbitrary timing in a state where the power source of the base unit 1 is activated and communication with the Internet 62 is possible. After the start of this process, in step S110, the breaking news detection unit 11a determines whether or not the communication control unit 15 has received the emergency earthquake breaking news via the Internet 62 and the wired LAN 41.

  When it is determined that the earthquake early warning is not received, the process proceeds to step S110 again, and the detection process is repeated until the emergency earthquake early warning is detected. When the reception of the emergency earthquake bulletin is detected, the bulletin detection unit 11a performs processing for analyzing a message included in the emergency earthquake bulletin in step S120. Thereby, the predicted seismic intensity, the predicted arrival time of the main motion, and the like are calculated from various parameters included in the message.

  Next, in step S130, the control unit 11 reads out evacuation instruction voice data and image data recorded in advance in the memory 12 or the like. Based on the read data, the display unit 13 and the speaker 18 are used to output sound and images for evacuation instructions. In addition, although the content of the audio | voice and image used for an evacuation instruction | indication is not specifically limited, For example, the audio | voice and image which show a predicted seismic intensity, the arrival prediction time of main motion, etc. are output.

  Next, in step S140, the earthquake detection transmission unit 11b transmits a detection notification indicating that an emergency earthquake warning has been detected to one or a plurality of slave units 2 using the communication control unit 15 and the antenna device 16.

  Next, the processing flow in the subunit | mobile_unit 2 is demonstrated, using the flowchart of FIG. The processing flow shown in FIG. 5 can be started at an arbitrary timing when the handset 2 is in a standby state and wireless communication with the base unit 1 is possible. After the start of this process, the earthquake detection reception unit 21a determines whether or not an emergency earthquake warning detection notification has been received from the base unit 1 by the antenna device 26 in step S210.

  If it is determined that the detection notification has not been received, the process proceeds to step S210 again, and monitoring is continued until the detection notification is received. When the detection notification is received, the earthquake detection reception unit 21a gives a message indicating that the detection notification has been received to the light emission amount adjustment unit 21b.

  Next, in step S220, the control unit 21 reads out evacuation instruction voice data and image data recorded in advance in the memory 22 or the like. Based on the read data, the display unit 23 and the speaker 28 are used to output an evacuation instruction sound and image.

Next, in step S230, the light emission amount adjusting unit 21b instructs the light emitting unit 30 to light (or blink) a part or all of the light emitting members included in the light emitting unit 30 with a predetermined light emission amount. Further, the lighting unit 80 is instructed to turn on (or blink) the high-intensity LED 81. In step S240, the light emission amount adjusting unit 21b instructs the light emitting unit 30 and the illuminating unit 80 to prohibit all the light emission control processes except the lighting (or blinking) process. Thereby, since both members perform only the lighting (or blinking) process, it is possible to prevent the members from being turned off due to an erroneous operation by the user. Further, the control unit 21 controls the communication control unit 25 so as to stop searching for radio waves from the base unit (detecting whether or not a radio signal is received from the base unit). For this reason, while the high-intensity LED 81 is turned on (or blinks), the wireless detection operation of the slave unit is stopped. Therefore, the power consumed by the communication control unit 25 can be reduced, and the power consumption of the battery 31 of the slave unit can be reduced.
[Other embodiments]
The present invention has been described above with reference to preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.
Therefore, the present invention can also be applied to the following embodiments.
(A) In this embodiment, when the slave unit receives the earthquake early warning, the communication control unit 25 does not transmit / receive radio waves. However, when the slave unit receives the earthquake early warning, the communication control unit 25 It is good also as a structure which interrupts | blocks electric power supply.
(B) Also, if there is a predetermined key operation on the master unit or slave unit side, the high brightness LED is turned on (or flashes) on the master unit or slave unit side, and the communication control unit detects the radio wave from the master unit. The power supply to the communication control unit may be cut off.
(C) Further, when receiving the earthquake early warning on the base unit side, the communication control unit of the base unit may not transmit / receive radio waves, or the power supply to the communication control unit of the base unit may be cut off. good. In this case, it is good to comprise so that LED may light up or blink on the main | base station side.

These are block diagrams which show the structure of the telephone system of this invention. These are block diagrams which show the structure of the main | base station of the communication apparatus of this invention. These are block diagrams which show the structure of the subunit | mobile_unit of the communication apparatus of this invention. These are the flowcharts which show the processing flow at the time of the earthquake early warning reception in the main | base station side of this invention. These are the flowcharts which show the processing flow at the time of the earthquake early warning reception in the subunit | mobile_unit side of this invention. These are external views which show the external appearance of the subunit | mobile_unit of this invention. These are perspective views which show the structure of the illumination part with which the subunit | mobile_unit of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main | base station 11a Bulletin receiving part 11b Earthquake detection transmission part 15 Communication control part 16 Antenna apparatus 2 cordless handset 21a Earthquake detection reception part 21b Light emission amount adjustment part 25 Communication control part 26 Antenna apparatus 30 Light emission part 80 Illumination part 81 High-intensity LED
82 Reflective member 83 Transparent member

Claims (6)

An input unit, a light emitting unit that lights or blinks, a wireless communication unit that transmits and receives wireless signals, and a control unit,
When the control unit determines that there is a predetermined operation from the input unit, the control unit turns on or blinks the light emitting unit and stops power supply to the wireless communication unit. An input unit, a light emitting unit that lights or blinks, a wireless communication unit that transmits and receives wireless signals, and a control unit,
When the control unit determines that there is a predetermined operation from the input unit, the control unit controls the radio communication unit to turn on or blink the light emitting unit and stop the detection operation of the radio signal. . A light emitting unit that lights or blinks, a wireless communication unit that can receive information on disasters, and a control unit,
When the wireless communication unit receives information on a disaster, the control unit turns on or blinks the light emitting unit and stops power supply to the wireless communication unit. A light emitting unit that lights or blinks, a wireless communication unit that can receive information on disasters, and a control unit,
The control unit controls the wireless communication unit to turn on or blink the light emitting unit and stop a wireless signal detection operation when the wireless communication unit receives information about a disaster. A light emitting unit that turns on or blinks, a disaster information receiving unit that can receive information on disasters, a wireless communication unit that transmits and receives radio signals for performing a call between other communication devices, a control unit, Have
The control unit turns on or blinks the light emitting unit and stops power supply to the wireless communication unit when the disaster information receiving unit receives information on a disaster. A light emitting unit that turns on or blinks, a disaster information receiving unit that can receive information on disasters, a wireless communication unit that transmits and receives radio signals for performing a call between other communication devices, a control unit, Have
The control unit controls the wireless communication unit to turn on or blink the light emitting unit and stop a wireless signal detection operation when the disaster information receiving unit receives information on a disaster. .

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