JP2013196570A - Display device and emergency communication processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for performing information notification processing effectively available under a situation of extremely high emergency in a display device and a personal digital assistant capable of receiving an emergency broadcasting.SOLUTION: A liquid crystal television 10 comprises an emergency handling section 30, a setting control section 40, a power source management section 60, a communication section 70 and a power source section 80. In the case where an emergency broadcast is included in broadcast waves received by a tuner 21 and further in the case where it is detected that a connected state between an external power source section 82 and an AC power source is cut off, the emergency handling section 30 determines that inevitability of an emergency status is high, and performs emergency communication processing.

Description

  The present invention relates to a display device and an emergency communication processing method, and more particularly to a display device capable of acquiring emergency information and an emergency communication processing method when emergency information is acquired.

  In recent years, users' interest in disaster prevention has increased, and devices that are put on the market are also equipped with functions that are conscious of disaster prevention. For example, when an emergency broadcast such as an earthquake occurs is received, the liquid crystal display device is automatically turned on, or when the external power supply (AC power supply) is out of power, the liquid crystal display device automatically operates with an internal battery. Such a technique has been proposed. In addition, a technique for constructing an emergency information notification system using a liquid crystal display device and a portable information terminal has been proposed (see, for example, Patent Document 1).

JP 2009-130097 A

  By the way, the number of devices that can receive earthquake early warnings is increasing among mobile information terminals, but it is also true that there are terminals that do not have that function, and power outage information is not nationwide uniform information, Since it is local information, it is not notified in the same way as emergency information over a wide area such as earthquake early warning. Therefore, a portable information terminal having a function capable of receiving an earthquake early warning or the like has a problem that it is difficult to accurately determine the degree of urgency automatically by itself.

  The technique disclosed in Patent Document 1 has a problem that a user of a liquid crystal television or a portable information terminal cannot notify the portable information terminal that the user has fallen into a more urgent situation than a power outage. In other words, because the event of a power failure is very local information, it is not always notified in the same way as emergency information sent to a wide area from, for example, the Japan Meteorological Agency or broadcasting stations, as in the case of emergency earthquake warnings, so AC power A portable information terminal that is not connected to can not know that it has been in a power failure state by itself. In other words, in order to know that a power failure has occurred, the portable information terminal itself cannot do it, and it must rely on other devices.

  This invention is made | formed in view of the above situations, Comprising: It aims at providing the technique which solves the said subject.

The display device of the present invention includes an emergency information detection unit that detects that emergency information has been notified, a power management unit that detects that power supply from the outside has been cut off, the emergency information, and A communication unit that notifies an external device when the power supply is cut off.
Further, the communication unit may perform the notification to a portable information terminal that has been paired.
Further, an internal power supply may be provided, and the power management unit may switch the power source to the internal power supply when an external power supply is interrupted.
The emergency communication processing method of the present invention is an emergency information detection step for detecting that emergency information has been notified, a power management step for detecting that power supply from the outside is cut off, and the emergency information is notified. And when the said electric power supply is interrupted | blocked, the notification process of notifying that to an external apparatus is provided.
In the notification step, the notification may be performed to a portable information terminal that has been paired.
In the power management step, the power source may be switched to the internal power source when the external power supply is cut off.

  ADVANTAGE OF THE INVENTION According to this invention, the technique which performs the information notification process which can be used effectively in the situation where emergency is very high can be provided in the display apparatus and portable information terminal which can receive emergency broadcast.

It is a functional block diagram which shows schematic structure of the liquid crystal television based on Embodiment. It is a flowchart which shows the emergency communication process based on embodiment.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings. The outline of the present embodiment is as follows. In this embodiment, a mobile phone or a pairing device that receives emergency information such as an earthquake early warning and detects a case where a power failure occurs in a display device (liquid crystal television, DVD recorder, etc.) and has a built-in battery. Notify external devices (also referred to as portable information terminals) such as remote control devices that have been set (link settings) that they have fallen into an emergency situation, and further, necessary information within the limited remaining power of portable information terminals Notification is enabled, and a decrease in the remaining power of both the display device and the portable information terminal is suppressed. In addition, although the liquid crystal television which can receive a digital broadcast is illustrated as a display apparatus and a mobile phone (smartphone) is illustrated as a portable information terminal, it is not the meaning limited to this, It can receive an emergency broadcast as a main | base station, and can communicate with a subunit | mobile_unit It is only necessary to have a function, and it is only necessary to have a function capable of communicating with the parent device as a child device.

  FIG. 1 is a functional block diagram showing a schematic configuration of a liquid crystal television 10 according to the present embodiment. The liquid crystal television 10 is a main control that comprehensively controls each component of the liquid crystal television 10 as shown. A source unit 20 that includes a unit 15, a tuner 21, and an external input unit 22; a selector 25 that performs source selection of the source unit 20; a signal processing unit 35; and a display output unit 50.

  The tuner 21 is a tuner for digital terrestrial broadcasting, for example, and has a function capable of acquiring an emergency signal superimposed on a digital broadcast wave. The emergency signal is a signal including an emergency broadcast such as an earthquake early warning. The emergency earthquake bulletin is broadcast by a broadcaster when an earthquake occurs, thereby notifying an unspecified number of users of the occurrence of the earthquake. For example, this earthquake early warning shows the epicenter, the magnitude of the earthquake, the seismic intensity at each location, and the like. Usually, the broadcasting station side that has received information from the Japan Meteorological Agency transmits an emergency signal in a digital broadcast wave along a predetermined standard.

  The external input unit 22 is connected to an external device such as a BD recorder or the like based on the HDMI standard.

  The signal processing unit 35 converts the video signal and audio signal acquired from the source unit 20 via the selector 25 into a desired signal format. More specifically, the signal processing unit 35 is a video signal processing unit (not shown) that processes the video signal and outputs it to the display output unit 50, and an audio signal processing unit that processes the audio signal and outputs it to the speaker. (Not shown). The video signal processing means also has a function of acquiring data for OSD (On Screen Display) processing such as character information and menu display from the main control unit 15 and outputting the data to the display output unit 50.

  The display output unit 50 includes a display panel and an LCD controller as general liquid crystal display means.

  The liquid crystal television 10 further includes an emergency response unit 30, a setting control unit 40, a power management unit 60, a communication unit 70, and a power supply unit 80.

  The power supply unit 80 is connected to an external AC power supply, converts the acquired AC power into DC, and supplies it to each component of the liquid crystal television 10. The internal power supply unit 84 is a so-called storage battery, is charged with power supplied from the external power supply unit 82, and when the external power supply unit 82 is not connected to an AC power supply or according to a predetermined setting condition, Electric power is supplied to each component of the liquid crystal television 10.

  The power management unit 60 controls the operation of the power supply unit 80. That is, the power supply unit 80 controls the detection process of the connection state of the external power supply unit 82 with the AC power supply, the operation switching between the external power supply unit 82 and the internal power supply unit 84, the charging process of the internal power supply unit 84, and the like.

  The communication unit 70 performs communication by connecting to an external portable terminal 90 or a network 92 by wireless communication connection or wired communication connection. More specifically, the communication unit 70 has a wired or wireless LAN communication function, an infrared communication function, and a Bluetooth (registered trademark) communication function. Further, when the portable terminal 90 is a remote controller, it is configured to be able to communicate with each other by wireless communication or infrared communication.

  When the emergency response unit 30 detects that the broadcast wave received by the tuner 21 includes emergency information, and further detects that the connection state between the external power supply unit 82 and the AC power source is disconnected, the emergency response unit 30 enters an emergency state. It is determined that there is a high probability, and emergency communication processing described later is performed. The liquid crystal television 10 performs the same processing not only on broadcast signals from antennas such as digital terrestrial broadcasts and satellite broadcasts, but also on emergency signals (emergency broadcast flags) superimposed on IP broadcasts, CATV, the Internet, etc. Do.

  The setting control unit 40 controls various settings of the liquid crystal television 10. Specifically, when the user operates a remote controller or the like to display a predetermined menu screen and performs setting of brightness, hue, connection with an external device, etc., the setting control unit 40 controls display of the menu screen and setting. Acquire, store, and reflect items. As a characteristic setting process in this embodiment, a link setting process with the mobile terminal 90 with which the communication unit 70 communicates, a communication destination setting at the time of an emergency communication process, and the like are performed.

  The link setting process is a pairing process in the Bluetooth function. The setting of the communication destination is a mail address, an IP address, or the like. That is, not only the link processing setting to the portable information terminal (portable terminal 90) existing around the liquid crystal television 10 but also the mail communication setting to the external network as the setting processing for the communication unit 70 to communicate as the emergency communication processing. And automatic notification processing setting to a predetermined bulletin board. This process is performed in cooperation with the OSD processing function of the signal processing unit 35. The setting control unit 40 stores user settings as setting data in a predetermined storage area.

  Although communication devices such as access points in the home are likely to be turned off at the time of a power outage, the location where the LCD TV 10 is installed may be damaged, resulting in a local power outage or an earthquake. Therefore, it is assumed that only the outlet of the liquid crystal television 10 is disconnected. Therefore, such a case can be dealt with and is very effective.

  The emergency communication processing with the above configuration will be described with reference to the flowchart of FIG.

  In the state where the liquid crystal television 10 is on, the emergency broadcast reception process (S10) and the power failure detection process (S20) are performed in parallel.

  In the emergency broadcast reception process (S10), when the tuner 21 receives a digital broadcast wave (S12), the signal processing unit 35 performs a decoding process or the like, and the emergency response unit 30 includes the emergency broadcast information in the digital broadcast wave. It is determined whether or not it is (S14). If emergency broadcast information is not included (N in S14), a normal operation is performed (S16), and the process returns to S12 to continue receiving digital broadcast waves (S12).

  If emergency broadcast information is included (Y in S14), the emergency response unit 30 sets an emergency broadcast flag F1 indicating that (S18). The emergency broadcast flag F1 and the power failure flag F2, which will be described later, are cleared at a timing when a predetermined time has elapsed after setting, for example, after 10 minutes.

  In the power failure detection process (S20), the power management unit 60 detects the power state (S22). Specifically, the power management unit 60 monitors the connection state between the external AC power source and the external power source unit 82, and detects whether or not the power can be acquired from the external AC power source.

  The power management unit 60 determines whether or not a power failure has occurred based on the power state (S24). That is, when the power supply state to the external power supply unit 82 is switched from on to off (Y in S24), it is assumed that a power failure has occurred and notifies the emergency response unit 30 to that effect (S28). The emergency response unit 30 that has received the notification sets the power failure flag F2. If it is determined that no power failure has occurred (N in S24), normal operation is performed (S26), and the process returns to S22.

  When either the emergency broadcast flag F1 or the power failure flag F2 is set, the emergency response unit 30 performs an emergency response process (S30). Specifically, the emergency response unit 30 confirms the flag setting state (S32). When only the emergency broadcast flag F1 is set (A in S32), the emergency response unit 30 performs display output of the emergency broadcast that is normally performed to the display output unit 50 (S34). When only the power failure flag F2 is set (B in S32), the emergency response unit 30 performs processing normally performed and switches to the internal power supply unit 84 (S36).

  When both the emergency broadcast flag F1 and the power failure flag F2 are set (C in S32), the emergency communication process described above is performed together with the emergency broadcast display output and the switching process to the internal power supply unit 84 (S38).

  At this time, the emergency response unit 30 may check the power remaining capacity of the internal power supply unit 84 with the power management unit 60 and perform different processing depending on the result. For example, when the power remaining capacity of the internal power supply unit 84 is relatively large, a process of repeating the emergency communication process after a predetermined interval is performed. When the remaining capacity is small, processing that seems to be reliable is performed. The type of communication processing to be prioritized may be set by the setting control unit 40. Also, even when notified that the remaining power capacity is zero, it is generally set not to be used any more from the viewpoint of preventing battery damage, and in some cases, some capacity may actually remain. Therefore, even when the emergency response unit 30 is notified that the remaining power capacity is zero, the emergency response unit 30 may determine that the urgency is very high and perform an emergency communication process to the mobile terminal 90 or the like. In that case, power supply to the display output unit 50 or the like may be forcibly cut off, and only functions related to emergency communication processing may be turned on.

  As described above, according to the present embodiment, when the emergency broadcast is received by the liquid crystal television 10 and a power failure is detected, the remote control and the link paired with the liquid crystal television 10 indicate that the emergency situation has occurred. It can be automatically transmitted to a mobile information terminal (mobile terminal 90) such as a mobile phone having a function. As a result, by building a system that can promptly notify other people of safety information, etc., communication of critical situations to other parties, communication to quickly escape from critical situations, and earthquakes occurred. It is possible to provide a technology that enables the confirmation of the safety of people living in the area to family members and acquaintances living in other areas. In addition, the liquid crystal television 10 and the mobile terminal 90 are devices that are very close to the user, and among these devices, devices equipped with a mutual link function have become widespread. If a urgent situation can be notified by using the link function based on these, it is very beneficial for the user because the introduction cost is not required for other users.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to combinations of the respective components and the like, and such modifications are within the scope of the present invention.

  For example, when the mobile terminal 90 is a mobile phone, the mobile terminal 90 may notify the predetermined destination by e-mail or the like when receiving the notification by the emergency communication process. As a result, even when the liquid crystal television 10 cannot communicate with the external network 92, the notification can be reliably made via the portable terminal 90.

  Further, when the function of the communication unit 70 of the liquid crystal television 10 fails or the remaining capacity of the internal power supply unit 84 is small, emergency communication processing may be performed via an external device connected to the external input unit 22. . That is, when the external device connected to the external input unit 22 has the same function as the liquid crystal television 10, the emergency response unit 30 notifies the external device to perform emergency communication processing. Conversely, when the liquid crystal television 10 receives an emergency communication process request from an external device via the external input unit 22, the emergency communication process may be performed instead of the external device. Recently, there are cases where a plurality of devices in the home (such as a television, a PC, a recorder, etc.) have established a home network interconnection according to the DLNA standard. Therefore, the above notification is sent from the device other than the liquid crystal television 10 that has received the emergency broadcast and detected the power failure to the portable terminal 90 that has been linked with the device through the home network. Also good.

10 LCD TV 15 Main Control Unit 20 Source Unit 21 Tuner 22 External Input Unit 25 Selector 30 Emergency Response Unit (Emergency Information Detection Unit)
35 signal processing unit 40 setting control unit 50 display output unit 60 power supply management unit 70 communication unit 80 power supply unit 82 external power supply unit 84 internal power supply unit 90 portable terminal 92 external network

Claims (6)

An emergency information detection unit for detecting that emergency information has been notified;
A power management unit that detects that the external power supply has been cut off;
When the emergency information is notified and the power supply is cut off, a communication unit that notifies an external device to that effect,
A display device comprising:   The display device according to claim 1, wherein the communication unit performs the notification to a portable information terminal that has been paired. With internal power supply,
The display device according to claim 1, wherein the power management unit switches a power source to the internal power source when an external power supply is cut off. An emergency information detection process for detecting that emergency information has been notified;
A power management process for detecting that the external power supply is cut off;
When the emergency information is notified and the power supply is cut off, a notification step for notifying an external device to that effect;
An emergency communication processing method comprising:   The emergency communication processing method according to claim 4, wherein the notification step performs the notification to a portable information terminal that has been paired.   The emergency communication processing method according to claim 4 or 5, wherein the power management step switches a power source to an internal power source when an external power supply is cut off.

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