JP7351072B2 - power line communication equipment - Google Patents

Description

The present invention relates to a power line communication device that is installed in residences, buildings, various facilities, etc., and uses power line communication to notify the occurrence of an intrusion by a suspicious person or a disaster.

Conventional residential security systems use a battery-powered sensor that detects an abnormality when a suspicious person intrudes and sounds an alarm speaker built into the sensor, and also uses wireless communication to detect an alarm at a location far away from the sensor. In some cases, a notification is sent to another device, such as a sounding device equipped with a speaker, in which the sounding device sounds. Therefore, for example, when a suspicious person intrudes, conventional crime prevention sensors sound an alarm sound, a sound, or both alternately only at the location where the sound device is located, but in order to hear the sound, The only option was to be in the area where the ringing device was located or to use the ringing device to make the alarm sound loud. In addition, most intrusions by suspicious persons occur while you are away. Security sensors can be installed in various locations such as windows, doors, ceilings, walls, etc., but conventional sensors and alarm devices can be instantly destroyed by a suspicious person who has broken into the building, stopping the alarm alarm from ringing immediately. .

In addition, in a home security system that has a door opening/closing sensor for an indoor door that is difficult for an intruder to see, it is installed across the main door and door frame of the indoor door, and is connected to the main door side member and the door frame side member. A door open/close sensor that detects and outputs the door open/close status, a transmission device for the output signal of the door open/close sensor, and an alarm signal sent to a pre-specified telephone line upon receiving the output signal of the door open/close sensor. and a control unit that performs information processing including processing to control the door opening/closing sensor, so that the door opening/closing sensor is substantially invisible to an intruder standing facing the door, at least when the door is closed. A system has been proposed in which a main door side member is buried on the edge side of the main door (see Patent Document 2).

Furthermore, intruders are hesitant to break in due to the presence or absence of security sensors, but with general security sensors (windows, doors, ceilings, walls, etc.), if you are not home, you can destroy the device in a short time. The ringing time is so short that it goes unnoticed. To prevent this, it is necessary to have the alarms ring for a long time throughout the building. A safety PLC and a safety slave are connected via a safety network to construct a safety network system, and the safety slave acquires safety input information from multiple connected safety devices and responds to requests from the safety PLC. Send information based on multiple safety inputs. At this time, there are two modes: a result notification mode that determines whether safety conditions are satisfied based on multiple safety input information and sends the obtained safety judgment result, and a detailed information mode that notifies multiple safety input information as is as a data set. A method has been proposed that has two notification modes and returns a safety response in one of the modes according to a command from a safety PLC (see Patent Document 1).

Therefore, the present inventor developed a new technology and proposed a system in which the speakers of all installed communication modems make use of PLC communication to sound almost simultaneously in the event of an abnormality (see Patent Documents 3, 4, and 5). Here, PLC is called Power Line Communication, and is a method of communication by carrying data signals on a power line in an existing house. This communication method began to be commercialized in 2006 due to deregulation by the Ministry of Internal Affairs and Communications.

WO2003/001306 publication Japanese Patent Application Publication No. 2007-233654 Japanese Patent Application Publication No. 2011-40047 Japanese Patent Application Publication No. 2011-60280 JP2012-27881A

As mentioned above, with conventional home crime prevention sensors, etc., when an abnormality occurs, a person seeking rescue or help can accurately communicate the abnormality to a rescuer or rescuer, and the rescuer or rescuer can There was insufficient notification to adequately respond to abnormalities.

In order to solve the problems in the invention or product technology as described above, we have created the following new means.

In claim 1 of the present invention, a plurality of modems installed in each space and capable of communicating with each other via a power line arranged across each space, and at least one modem among the plurality of modems, It has an earthquake early warning receiving section that receives an earthquake early warning from the outside, and at least one modem among the plurality of modems has a control signal transmitting section that controls turning on and off of the plurality of electric appliances connected to the power line. Each of the modems includes a speaker section that outputs audio, a power line transmitter section that transmits a power line signal via the power line, a power line receiver section that receives the power line signal via the power line, and each of the sections. A power line communication device having a control unit for controlling the power line, wherein an emergency power supply device that detects a power outage and supplies power is connected to the power line, and an emergency power supply start-up that detects that the power supply device has started up. In the power line communication device having a detection unit, when the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an on signal and an off signal to a plurality of predetermined electric appliances, and then detects a power outage. When the emergency power supply detection section detects that the emergency power supply device has been activated due to an occurrence of an emergency power supply, the control signal transmission section causes the set electrical appliances to turn off among the electrical appliances to which the on-signal has been transmitted. Send a signal.

In claim 2 of the present invention, a plurality of modems installed in each space and capable of communicating with each other via power lines arranged across each space, and at least one modem among the plurality of modems, It has an earthquake early warning receiving section that receives an earthquake early warning from the outside, and at least one modem among the plurality of modems has a control signal transmitting section that controls turning on and off of the plurality of electric appliances connected to the power line. Each of the modems includes a speaker section that outputs audio, a power line transmitter section that transmits a power line signal via the power line, a power line receiver section that receives the power line signal via the power line, and each of the sections. A power line communication device having a control unit for controlling the power line, wherein an emergency power supply device that detects a power outage and supplies power is connected to the power line, and an emergency power supply start-up that detects that the power supply device has started up. In the power line communication device having a detection unit, when the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an ON signal to a plurality of predetermined electric appliances, and then detects that a power outage has occurred. When the emergency power supply detection section detects that the emergency power supply device has started, the control signal transmission section transmits the power to the set electrical appliance among the plurality of predetermined electrical appliances to which the on signal has been transmitted. Send off signal.

In claim 1 of the present invention, upon reception of an earthquake early warning, for example, electrical appliances that may cause a fire if turned on are turned off. Also, for example, necessary electrical appliances are turned on during or after an earthquake. Next, after the emergency power supply is activated, for example, among electrical appliances that are turned on, the power consumption of the emergency power supply can be reduced, or if the power is restored and the power is turned on, there may be a fire hazard. Turn off electrical appliances that may cause

In claim 2 of the present invention, first, upon reception of an earthquake early warning, for example, necessary electrical appliances are turned on during or after an earthquake. Next, after the emergency power supply is activated, among the electrical appliances that are on, for example, reduce the power consumption of the emergency power supply, or if the power is restored and the power is on, it may cause a fire. Turn off electrical appliances that may cause

Installation diagram of power line communication device in Embodiment 1 of the present invention Block configuration diagram of a power line communication device in Embodiment 1 of the present invention Block configuration diagram of a wireless transmitter of a power line communication device in Embodiment 1 of the present invention Operation flowchart of the power line communication device according to the first embodiment of the present invention Operation flowchart of the power line communication device according to the second embodiment of the present invention Operation flowchart of power line communication device according to Embodiment 3 of the present invention A diagram illustrating output information in the storage unit according to the power line communication device according to Embodiment 1 of the present invention. A diagram illustrating output information in the storage unit according to the power line communication device according to Embodiment 1 of the present invention.

Embodiment 1 of the power line communication device of the present invention will be described in detail below with reference to the drawings.

(Embodiment 1) FIG. 1 is a diagram showing a situation where a power line communication device according to the present embodiment is installed in a house H of a general household. There is a window W in the living room, a door D in the retirement room, a light L on the ceiling of each indoor room, a fire alarm (fire sensor) F in the kitchen, a TV T in the couple's room, and a children's room. There is a radio R in the room, and a gas alarm (gas leak sensor) G in the retirement room. Furthermore, the modem M of this power line communication device is connected to the power line outlets (plugs) in the kitchen, living room, couple's room, and retirement room. In addition, the window W in the living room and the door D in the retirement room can be locked, and if they are unlocked or opened, there is an unlock (open) sensor that detects the unlock (open) state. E is attached. Furthermore, a wireless transmitter K (30) is installed in each room where the modem M is installed. Here, power line communication is a method of transmitting information by passing high-frequency communication waves through electric wires that transmit electric power. Further, the above-mentioned lighting L, gas circuit breaker G, television T, and radio R are controlled by a power line communication device, which will be described in detail later.

The configuration of the power line communication device 10 of this embodiment will be described with reference to FIG. 2. The power line communication device 10 of this embodiment has a plurality of modems M, which are installed in the kitchen, living room, couple's room, and retirement room, and are connected to each other via the power line A, as described above. When an abnormality of each detection target, which will be described later, is detected, the information is transmitted to the wireless transmitter 30, and the wireless transmitter 30 transmits the information to the wireless signal receiving section 11. Further, a call can be received from the radio transmitter 30, and a signal from the radio transmitter 30 can be received by operating the operation unit 39 (see FIG. 3) of the radio transmitter 30, for example, by pressing a button. 12 by radio. The earthquake early warning receiving unit 13 receives a specific earthquake early warning that has arrived from the outside via the power line A and the power line receiving unit 15.

The control signal receiving section 14 receives control signals from other modems. Note that the power line receiving section 15 converts the high frequency of power line communication from the outside into an electric signal for controlling the inside of the apparatus. Further, the control signal transmitter 22 transmits a control signal from this modem to other modems. The mail transmitter 23 transmits a predetermined mail from this modem to another modem via the power line transmitter 24. Note that the power line transmitter 24 converts each signal into a high frequency signal, superimposes it on the power line, and transmits it to the outside.

The human sensor section 16 is a sensor that has a human sensing function using infrared rays. A signal indicating an abnormality from the human sensor section 16 is transmitted to the human detection signal receiving section 17. The speaker unit 18 has an output function to output audio. The display section 19 displays various information. The light emitting unit (light) 26 outputs lighting or blinking light. The operation section 20 operates the output of the speaker section 18, the display section 19, the light emitting section 26, and the like. The emergency power supply operation detection unit detects that an emergency power supply device, which will be described later, has been activated due to a power outage or the like. The power recovery detection unit 25 detects that the power supply that was once cut off is restored and the power supply is restarted. Further, with reference to FIG. 7, the storage unit 21 stores output information, etc., and in particular, stores a table in which addresses assigned to each room and various sensors correspond to each other. The numbers in the table correspond to the audio output content, display content, and email content shown in FIG. 8.

The wireless transmitter 30 will be described in detail with reference to FIG. 3. The fire detection signal receiving section 31 receives a signal from the fire sensor 36 indicating the occurrence of a fire. The unlocking (opening) detection signal receiving section 32 receives a signal indicating unlocking or opening from the unlocking (opening) sensor 37. The gas leak detection signal receiving unit 33 receives a signal from the gas leak sensor 38 indicating that there is a gas leak. The fire detection signal receiving section 31, the unlocking (opening) detection signal receiving section 32, and the gas leak detection signal receiving section 33 are collectively referred to as a "detection signal receiving section." The signal received by the detection signal receiving section is transmitted from the wireless signal transmitting section 34 to the wireless signal receiving section 11 of the modem 10 via the control section 40. Further, the paging signal transmitting section 35 transmits a paging signal to the paging signal receiving section 12 of the modem 10 by operating the operating section 39 .

Next, the operation of modem 10 will be described in detail with reference to FIG. In step 1, the control unit 28 determines whether the earthquake early warning receiving unit 13 has received the earthquake early warning or the wireless signal receiving unit 11 has received the detection signal. For example, when a window W in the living room is unlocked by a suspicious person, the unlock sensor 37 detects this and sends a signal (detection signal) indicating that an abnormality has been detected to the unlock sensor 37 of the wireless transmitter 30. Furthermore, the wireless transmitter 30 notifies the wireless signal receiving section 11 of the modem 10 installed in the living room that an abnormality has occurred in the locking of the window W in the living room. The control unit 28 of the modem 10 installed in the living room receives the detection signal from the "unlock sensor" in the storage unit 21, and since it is in the living room, the control unit 28 of the modem 10 (2) corresponding to the "address B" The information is selected, and the speaker unit 18 outputs the information as a voice saying "The living room window has been opened." The same message is also displayed on the display unit 19 (step 2). At the same time, the control section 28 instructs the light emitting section 26 to output. The light emitting unit 26 that receives the instruction signal flashes a strong light corresponding to a warning. Note that the output from the speaker section of the modem 10 due to detection by the unlock sensor can also be stopped by a reset or release operation on any other operation section of the modem 10. Furthermore, the output from the speaker section of the modem 10 due to the detection of the fire cannot be stopped unless a reset or release operation is performed on the operation section of the modem 10 that receives the detection signal from the fire sensor that detected the fire. This function is similar in other embodiments.

Furthermore, at the same time, the present modem 10 installed in the living room transmits a signal indicating that it is the above-mentioned unlock sensor and corresponds to address B to the control signal receiving section 14 of all other modems through the power line. 24. All modems that have received this control signal output audio corresponding to the signal from their speaker sections. Note that it is possible to set from the operating unit 20 which modem's speaker unit outputs the signal. For example, in the event of a fire, the signal is transmitted only to the modem 10 installed in the couple's room. As a result, only the modem in the couple's room performs each of the above outputs (step 2). Therefore, if it is detected by an unlock (opening) sensor, it will be output from the speaker section of all modems to eliminate the suspicious person's desire to commit a crime and force him or her to leave outside.Also, if a fire sensor or gas leak sensor detects it, In order to prevent the output from the speaker section of the modem in the room of an elderly person or a disabled person who cannot cope with the situation, it is possible to set the output only from the speaker section of a predetermined modem instead of all modems. This function is similar in other embodiments. Furthermore, the output sound from the speaker section can be differentiated depending on the type of each sensor. For example, in the case of a fire sensor detection, "Woo, woo, woo, a fire has broken out in the child's room", or in the case of an unlock sensor detection, "Peep, peep, the window on the second floor has been opened." Furthermore, in the case of the above call, it outputs, ``Ping pong, ping pong, come to the retirement room.'' It should be noted that this ringing function functions similarly in other embodiments, and its explanation will be omitted.

Here, one radio transmitter 30 is usually installed in the room corresponding to one modem in each room. However, when the user moves with the same type of wireless transmitter 30 hanging around his neck, the wireless signal of the wireless transmitter is set to reach at least the nearest modem 10. There is. Therefore, within the house, any modem can receive a call signal from a moving user.

As described above, the unlock sensor 37 transmits the detection of unlocking to the wireless transmitter 30, and in step 3, the modem 10 transmits the signal within a predetermined period of time after receiving the signal. When the radio signal receiving section 11 of 10 receives the calling signal from the radio transmitter 30, a predetermined output is made from the speaker section and display section of the predetermined modem. For example, when a user who has evacuated from a suspicious person's intrusion moves to a retirement room and performs a calling operation on the wireless transmitter 30, the wireless transmitter 30 transmits a calling signal from the calling signal transmitter 35. do. Then, the calling signal receiving section 12 of the modem 10 installed in the retirement room receives the calling signal (step 3).

Upon reception of this calling signal, the control unit 28 of the modem 10 installed in this retirement room registers in the table of the storage unit 21 that it is a "calling signal" and that it is the "address C" of the retirement room. The signal is transmitted from the control signal transmitter 22 to a predetermined modem 10 other than the modem output from the speaker section via the power line transmitter 24. The control signal receiving section 14 of the other modem that received this signal via the power line receiving section 15 stores information (6) in the storage section 21 as a "calling signal" and corresponding to "address C". is output as audio from the speaker unit 18 and as a display from the display unit 19 (step 4). In addition, if calling signals are transmitted from a plurality of wireless transmitters 30 within a predetermined time after the output, each output from the speaker section and display section of a predetermined modem will have contents corresponding to the plurality of calls. are repeated in sequence.

In step 3, none of the modems 10 receives the calling signal from the radio transmitter 30 within the predetermined time (step 5), and the opening (unlocking) detection signal of the door D of the retirement room is released. If the lock sensor 37 does not detect it (step 6), the modem 10 shifts to a standby state. On the other hand, in step 3, none of the modems 10 receives the calling signal from the wireless transmitter 30 within the predetermined time, and in step 5, the door D of the retirement room is opened (unlocked). When the wireless transmitter 30 receives the detection signal and the wireless signal receiving section 11 of the modem 10 receives the detection signal from the wireless transmitter 30, the control section 28 controls the speaker section 18 and the modem 10 in the retirement room. As described above, the display section 19 outputs the message "Come to the retirement room!" by voice and display (step 7). At the same time, the control section 28 transmits a predetermined mail from the mail transmitting section 23 to a predetermined address (step 8). The text of this email may be the above-mentioned "Come to the retirement room!" or another text stored in the storage unit 21. For example, assuming that the door in the retirement room is the emergency exit door of the building, the audio and display output information and the email content stored in the storage unit 21 may simply read "The door has opened." From this, it can be determined that the people inside the building have evacuated.

On the other hand, if the earthquake early warning detection section 13 of the modem 10 detects an earthquake early warning in step 1, the control section 28 moves to step 9, and the speaker section 18 outputs the information stored in the storage section 21. The received information "There is an earthquake. Please be careful of furniture and falling objects." is output audibly, and at the same time, the display unit 19 displays the same message. Further, the light emitting section 26 also outputs light corresponding to a warning.

In the next step 10, the control unit 28 performs a power-off control from the control signal transmission unit 22 via the power line transmission unit 24 so as to turn off the power of a predetermined electrical appliance, such as an electric heater, an electric stove, or an iron. Send a signal. It should be noted that a power adapter (not shown) is attached between the electric appliance and the outlet, which turns off the power when the electric appliance receives the control signal. In response to this power-off control signal, the electrical product is powered off. This can prevent fires caused by electrical appliances when the power is restored after a power outage.

Next, the process moves to step 11, in which a switch (not shown) of the wireless transmitter 30 is activated by a user who is in the kitchen and is carrying a wireless transmitter within a predetermined time after receiving the earthquake early warning. When a calling signal is transmitted by pressing the button, in step 16, when the calling signal receiving section 12 of the modem 10 set in the kitchen receives the calling signal, the control signal transmitting section 22 of the modem M transmits the "wireless" signal. A signal indicating that the signal is from the "transmitter" and was received in the "kitchen" is transmitted to another predetermined modem 10 via the power line transmitter. In this case, modems 10 for the living room and the couple's room are set as other predetermined modems, and the calling signal receiving sections 12 of these modems receive the signals via the power line receiving section 15, and the memory section The corresponding information "Come to the kitchen!" is selected from the table No. 21 and outputted as audio from the speaker section 18 and as a display from the display section 19. Note that the above-mentioned selection (setting) of the modem 10 to be output is performed using the operation unit 20. As a result, if the user requires assistance or relief, the person inside the room can respond quickly.

Furthermore, if a user who carries a wireless transmitter and performs a calling operation subsequently moves to another room, the calling signal from the wireless transmitter will be reset if not reset by the operation unit 20. Since the calling signal continues to be transmitted, for example, when moving from the kitchen to the living room, the speaker section 18 and the display section similarly send out a message "Come to the living room!" as the voice and display of the modem 10 installed in the living room. 20, respectively. As a result, even if the person requesting assistance or relief moves, the rescuer can immediately know where the person has moved since the audio and display output follow.

Further, in step 11, if none of the modems 10 receives the calling signal within the predetermined time, and in step 12, after the predetermined time has elapsed, the human sensor of any modem 10 When the unit 16 also does not detect a person, the control unit 28 causes the speaker unit and the display unit to output a request for a calling operation of the wireless transmitter 30, for example, a “call button” which is information stored in the storage unit 21. Please press!'' (step 13). Furthermore, in step 14, if the calling signal receiving section 12 of any modem 10 does not receive the calling signal within a predetermined time after the output, the mail transmitting section 23 sends an e-mail to a predetermined address ( Step 15). In such a case, there is a high possibility that the person who was inside the house has collapsed due to the earthquake and cannot be called using the radio transmitter. Therefore, it is determined that other people indoors are unable to provide relief, and it is possible to immediately request help from outside via email.

Further, in step 12, when the human sensor of the modem 10 detects a person in the couple's room, the human detection signal receiving section 17 of the modem 10 transmits the detection signal to the control section 28, and the control section 28 , the information stored in the storage unit 21, ``There is someone in the couple's room!'', is outputted by the speaker unit 18 and the display unit 20 in voice and display, respectively (step 16). In addition, the modem 10 installed in the couple's room sends a signal to other predetermined modems indicating that the detection is by a "human sensor" and that it is a "couple's room", and as described above, The same output is performed from the speaker section and the display section. Also, for example, if two people are in different rooms indoors and the other person is detected after one person is detected, priority will be given to the output due to the detection of the other person. . Furthermore, as an output method, it is also possible to repeat the outputs of two people.

As described above, after the transition from step 11 to step 12, the safety of the resident can be confirmed by making a call or requesting a call using the modem 10 in step 13, and if there is a response to the call, that is, If there is no call operation from the wireless transmitter, it is determined that there is an emergency situation, and a predetermined email is sent to a predetermined address. This allows, for example, a rescuer (person who helps) outside to respond.

(Embodiment 2) Next, Embodiment 2 of the power line communication device of the present invention will be described in detail with reference to FIG. Note that the configuration of the apparatus of this embodiment is the same as that of Embodiment 1, so the description thereof will be omitted. Note that the operation of this device differs depending on the software programs in the control section and storage section, so the operation will be explained below.

Modem M (10) detects reception of an earthquake early warning in step 20. When the earthquake early warning receiving section 13 receives an earthquake early warning from the outside via the power line receiving section, the control section 28 transmits the information stored in the storage section 21 "It's an earthquake. Be careful of falling objects!" to the speaker section. 18 and the display unit 20 (step 21). At the same time, the control unit 28 causes the light emitting unit 26 to flash a light corresponding to a warning. Each of these outputs is output from all modems. In step 22, if the fire detection signal unit 31 of the modem 10 installed in the kitchen receives a detection signal from the fire sensor 36 within a predetermined time after receiving the earthquake early warning, the control unit 28 The information "Fire broke out in the kitchen!" stored in 21 is output on the speaker section and display section (step 23). Further, the control unit 28 transmits a signal indicating that the detection signal is from the "fire sensor" and that the location is in the "kitchen" to another predetermined modem 10. The control signal receiving unit 14 of another predetermined modem 10 that has received the signal notifies the control unit 28 and refers to the table stored in the storage unit 21 to output the output information “Fire broke out in the kitchen!” Output from the speaker section and display section.

Next, in step 24, after receiving the fire detection signal, an unlock detection signal from the open (unlock) sensor 37 of a specific door (for example, an "emergency door") is released within a predetermined time. (Open) When the detection signal reception section 32 receives the detection signal, the wireless transmitter 30 transmits a signal indicating that the detection signal has been received to the nearby modem 10, and the control section 28 of the modem stores the signal in the storage section 21. The information "The emergency door has opened!" is output from the speaker section and the display section (step 26). Furthermore, this control unit 28 transmits a signal to other predetermined modems 10 to the effect that the opening of the emergency door has been detected. Other predetermined modems that have received this signal similarly output "The emergency door has opened!" from the speaker section and display section. As a result, people who were indoors can notice the escape through the emergency door and immediately escape through the emergency door.

On the other hand, in step 24, if the wireless transmitter 30 does not receive the detection signal from the open sensor 37 within the predetermined time and the wireless signal receiving section 11 of the modem 10 does not receive the signal, the control of the modem 10 The unit 28 instructs the mail transmitting unit 23 to transmit a predetermined mail “The emergency door has not been opened yet.” to a predetermined address. Therefore, the mail transmitter 23 transmits the mail to the predetermined address via the power line transmitter 24 (step 25). In this case, there is a high possibility that there is no one indoors, or that someone has collapsed indoors, and the person who received the above email face while outdoors can immediately decide what to do and take immediate action. .

(Third Embodiment) Next, a third embodiment of the power line communication device of the present invention will be described in detail with reference to FIG. Note that the configuration of the apparatus of this embodiment is the same as that of Embodiment 1, so the description thereof will be omitted. Note that the operation of this device differs depending on the software programs in the control section and storage section, so the operation will be explained below.

In step 30, when the earthquake early warning receiving unit 14 of the modem M (10) receives the earthquake early warning via the power line receiving unit 15, the control unit 28 transmits the earthquake early warning from the control signal transmitting unit 22 of the modem to the power line transmitting unit 23. Transmitting a power-off signal to a predetermined electrical appliance (first group), for example, an electric stove, an electric heater, an electric iron, etc., and a power-on signal to a predetermined lighting device, television, radio, etc. (step 31). Incidentally, a power adapter (not shown) is attached between the above-mentioned predetermined electrical products and an outlet, and the power adapter can control the power-off and power-on of each electrical product using control signals from the modem 10. It looks like this. Next, the speaker section 18 and display section 19 of the modem 10 output predetermined information "There is an earthquake. Please be careful of falling objects." (Step 32). Furthermore, at the same time, the light emitting unit 26 is caused to flash a strong light corresponding to a warning. Each of these outputs is output from all modems.

Thereafter, in step 33, the emergency power supply operation detection unit 24 detects whether or not the emergency power supply F (see FIG. 2) connected by the power line has started operating due to the earthquake. When the operation is detected, the control unit 28 turns off the power of a predetermined electric appliance (second group) among the electric appliances that have been turned on, via the power line transmission unit 27 from the control signal transmission unit 22. control signal is transmitted (step 34). As mentioned above, among the electrical appliances in the first group that are powered on, the electrical appliances in the second group that consume significant power (air conditioners, microwave ovens, etc.), with the exception of lighting fixture L, cannot be operated. 20, the power consumption of the storage battery of the emergency power supply device can be suppressed, and the operation of the emergency power supply device can be prolonged. In addition, in step 35, the control unit 28 sends a message from the speaker unit and on the display unit so that the electric appliance that has been powered off once will not be powered on, and that other electric appliances will not be powered on either. output the text. That is, the speaker unit and the display unit output an instruction to the user to use the minimum number of electric appliances among the above electric appliances.

Next, in step 36, when a predetermined period of time has elapsed since the power of the predetermined electric appliance (second group) was turned off in step 35, the operation of the speaker section 18, display section 19, and light emitting section 26 of the modem 10 is stopped. Further, in step 37, the control unit 28 causes the mail transmitting unit 23 to send an email to a predetermined address to inform that the process has been stopped (step 37). As a result, the person receiving this email can know the above-mentioned indoor conditions, including the fact that the emergency power supply has started operating.

Thereafter, when the power restoration detection section 25 of the modem 10 detects the restoration of the power supply (step 38), the speaker section and display section of the modem 10 become operable (step 39). This makes it possible to notify (audio output, display output) that an abnormality has been detected by each sensor.

In this embodiment, all modems are equipped with an earthquake early warning receiving section, so even if the power supply to one modem is cut off when the first earthquake occurs (for example, if the power supply to one modem is interrupted due to an earthquake, If a second earthquake occurs, other modems can respond as described above. In addition, if the earthquake early warning receiver is installed in a plurality of predetermined modems rather than all modems, the power to the modem equipped with one earthquake early warning receiver will be cut off after the first earthquake occurs. Even after a second earthquake occurs, another modem equipped with an earthquake early warning receiver can be used to respond to a second earthquake.

The power line communication device of the present invention has high industrial applicability because it can be placed in a general household house, building, other facility, etc., and can immediately notify indoors or outdoors of an indoor abnormality.

10 Modem (power line communication device)
11 Radio signal receiving section 12 Calling signal receiving section 13 Earthquake early warning receiving section 14 Control signal receiving section 15 Power line receiving section 16 Human sensor section 17 Human detection signal receiving section 18 Speaker section 19 Display section 20 Operating section 21 Storage section 22 Control signal Transmission section 23 Mail transmission section 24 Emergency power supply operation detection section 25 Power recovery detection section 26 Light emitting section 27 Power line transmission section 28 Control section

Claims (2)

A plurality of modems installed in each space and capable of communicating with each other via power lines arranged across each space;
At least one modem among the plurality of modems has an earthquake early warning receiving section that receives an earthquake early warning from the outside,
At least one modem among the plurality of modems has a control signal transmitter that controls turning on and off of a plurality of electrical appliances connected to the power line,
Each of the modems includes a speaker unit that outputs audio, a power line transmitter unit that transmits a power line signal via the power line, a power line receiver unit that receives the power line signal via the power line, and a control unit that controls each unit. A power line communication device comprising:
An emergency power supply device that detects a power outage and supplies power is connected to the power line, and the power line communication device has an emergency power supply startup detection section that detects that the power supply device has started up.
When the earthquake early warning receiving section receives the earthquake early warning, the control signal transmitting section transmits an on signal and an off signal to a plurality of predetermined electrical appliances, and then when a power outage occurs and the emergency power supply device is turned off. When the emergency power supply detecting unit detects that the emergency power source has been activated, the control signal transmitting unit transmits an off signal to the set electric appliance among the electric appliances to which the on signal has been transmitted. Power line communication equipment. A plurality of modems installed in each space and capable of communicating with each other via power lines arranged across each space;
At least one modem among the plurality of modems has an earthquake early warning receiving section that receives an earthquake early warning from the outside,
At least one modem among the plurality of modems has a control signal transmitter that controls turning on and off of a plurality of electrical appliances connected to the power line,
Each of the modems includes a speaker unit that outputs audio, a power line transmitter unit that transmits a power line signal via the power line, a power line receiver unit that receives the power line signal via the power line, and a control unit that controls each unit. A power line communication device comprising:
An emergency power supply device that detects a power outage and supplies power is connected to the power line, and the power line communication device has an emergency power supply startup detection section that detects that the power supply device has started up.
When the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an on signal to a plurality of predetermined electrical appliances, and then a power outage occurs and the emergency power supply device is activated. If the emergency power supply detecting unit detects, the control signal transmitting unit transmits an off signal to the set electric appliance among the plurality of predetermined electric appliances to which the on signal has been transmitted. power line communication equipment .

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