JP2023106507A - Power line communication system - Google Patents

Abstract

To reliably notify of details of an abnormal situation using a notification apparatus installed in a house or building.SOLUTION: Plural modems are installed in respective spaces and can communicate with one another over a power line laid out in the spaces. An emergency power supply that detects power outage and supplies electric power is connected to the power line. When an earthquake bulletin receiving unit of a predetermined modem receives an earthquake bulletin, a control signal transmission unit of the predetermined model transmits an off signal to plural predetermined electric appliances. Thereafter, when an emergency power source detection unit of the predetermined modem detects the fact that power outage has occurred and the emergency power supply is activated, the control signal transmission unit of the predetermined modem transmits the off signal to selected ones of the predetermined electric appliances.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power line communication device that is installed in residential houses, buildings, various facilities, etc., and uses power line communication to report the occurrence of an intrusion by a suspicious person, a disaster, or the like.

In conventional home security systems, when a suspicious person intrudes, a battery-powered sensor senses an abnormality and an alarm speaker built into the sensor sounds. In some cases, other devices such as a ringing device equipped with a speaker are notified and the ringing device rings. Therefore, for example, when a suspicious person intrudes, a conventional crime prevention sensor alternately sounds an alarm sound, a voice, or both only in the place where the sounding device is located. There was no choice but to stay in the place where the ringing device is or to make the ringing device sound loudly. Moreover, most of the intrusions by suspicious persons occur while the user is away. Security sensors can be installed in various places such as windows, doors, ceilings, walls, etc. However, conventional sensors and sounding devices are instantly destroyed by a suspicious person who has entered, and the alarm sound is immediately stopped. .

In addition, in a home security system having a door opening/closing sensor that is difficult for an intruder to see for an indoor door, the sensor is provided across the main door and the door frame of the indoor door, A door open/close sensor that senses and outputs the door open/close status, a transmission device for the output signal of the door open/close sensor, and an alarm signal that receives the output signal of the door open/close sensor and is transmitted to a predetermined telephone line. and a control unit for performing information processing including processing for performing the above-mentioned processing, the door opening/closing sensor being substantially invisible to an intruder standing facing the door, at least in the closed state of the door opening/closing sensor. A system has been proposed in which a main door-side member is embedded in the edge side of the main door (see Patent Document 2).

Furthermore, intruders are hesitant to enter due to the presence or absence of crime prevention sensors. The ringing time is short and unnoticeable. In order to prevent this, long-time ringing is required in the entire building. A safety network system is constructed by connecting safety PLCs and safety slaves via a safety network, and safety slaves acquire safety input information from a plurality of connected safety devices, 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 a plurality of safety input information and sends the obtained safety judgment result, and a detailed information mode that notifies a plurality of safety input information as a set of data as they are. A method has been proposed which has two notification modes and returns a safety response in one of the modes in accordance with 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 communication modems installed using PLC communication 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 carrying data signals over existing power lines in a house for communication. This communication method began to be commercialized in 2006 due to deregulation by the Ministry of Internal Affairs and Communications.

WO2003/001306 JP 2007-233654 A JP 2011-40047 A Japanese Patent Application Laid-Open No. 2011-60280 JP 2012-27881 A

As described above, with conventional sensors for home crime prevention, etc., when an abnormality occurs, a person seeking rescue can accurately communicate the abnormality to a rescuer or a rescuer, and the rescuer or rescuer can Not enough anomalies were reported so that they could be adequately addressed.

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

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, an earthquake early warning receiving unit for receiving an earthquake early warning from the outside, at least one of the plurality of modems having a control signal transmitting unit for controlling turning off of the electric appliance connected to the power line; Each modem includes a speaker unit that outputs voice, a power line transmission unit that transmits a power line signal via the power line, a power line reception unit that receives the power line signal via the power line, and a control unit that controls each unit. , wherein the power line is connected to an emergency power supply device that detects a power failure and supplies power, and has an emergency power supply startup detection unit that detects that the power supply device has started up. In the power line communication device, when the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an off signal to a plurality of predetermined electric appliances, and then the emergency power supply is turned off when a power failure occurs. When the emergency power detection unit detects that the device has started, the control signal transmission unit transmits an off signal to the electric appliance selected from the plurality of predetermined electric appliances.

According to claim 2 of the present invention, in the power line communication device according to claim 1, when the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit sends an off signal to a plurality of predetermined electric appliances. is transmitted, when the emergency power detection unit detects that a power failure has occurred and the emergency power supply has been activated, the speaker unit indicates that the minimum number of electric appliances among the electric appliances should be used. outputs the sound of

In claim 1 of the present invention, for example, when an earthquake early warning is received, electric appliances that may cause a fire if turned on are turned off. At the same time, an announcement is made to that effect, and an instruction is given not to return to the ON state. Next, among the plurality of electrical appliances in the off state, those electrical appliances that may cause a fire when the power is restored after the power failure are turned off. At the same time, this also reduces the power consumption of the emergency power supply.

Further, in claim 2 of the present invention, power is supplied only to the minimum necessary electrical appliances by turning off selected electrical appliances after activating the emergency power supply device, In order for the emergency power supply to use the necessary electrical appliances for as long as possible in this situation, by instructing the user to turn off other electrical appliances that are not currently required, Extends the operating time of the power supply.

1 is an installation diagram of a power line communication device according to Embodiment 1 of the present invention; FIG. 1 is a block configuration diagram of a power line communication device according to Embodiment 1 of the present invention; 1 is a block configuration diagram of a radio transmitter of a power line communication device according to Embodiment 1 of the present invention; FIG. Operation flowchart of the power line communication device according to Embodiment 1 of the present invention Operation flowchart of the power line communication device according to Embodiment 2 of the present invention Operation flowchart of the power line communication device according to Embodiment 3 of the present invention FIG. 4 is a diagram for explaining output information in a storage unit according to the power line communication device according to Embodiment 1 of the present invention; FIG. 4 is a diagram for explaining output information in a storage unit according to the power line communication device according to Embodiment 1 of the present invention;

A power line communication apparatus according to a first embodiment 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 in which a power line communication device according to this 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 child. A radio R is installed in the room, and a gas alarm (gas leak sensor) G is installed in the retirement room. A modem M of the power line communication device is connected to power line outlets (plugs) in the kitchen, living room, couple's room, and retirement room. In addition, the window W of the living room and the door D of the retirement room are designed to be locked, and when unlocked or opened, an unlock (open) sensor detects the unlock (open) state. E is installed. Furthermore, a radio transmitter K (30) is arranged in each house where the modem M is arranged. Here, the power line communication is a method of transmitting information by allowing high-frequency communication waves to pass through electric wires for transmitting electric power. The lighting L, gas circuit breaker G, television T and radio R are controlled by a power line communication device, the details of which will be described later.

The configuration of the power line communication device 10 according to the present embodiment will be described with reference to FIG. The power line communication device 10 of the present embodiment has a plurality of modems M, which are installed in the kitchen, the living room, the couple's room, and the retirement room, and are connected via the power line A, respectively, as described above. When an abnormality of each detection target 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 . Also, a call can be received from the radio transmitter 30, and a signal from the radio transmitter 30 is received as a call signal by operating an operation unit 39 (see FIG. 3) of the radio transmitter 30, for example, by pressing a button. It is wirelessly transmitted to the unit 12 . 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 receiver 14 receives control signals from other modems. The power line receiving unit 15 converts the high frequency of the power line communication from the outside into an electric signal for control within the apparatus. Also, the control signal transmission unit 22 transmits control signals from this modem to other modems. Mail transmission section 23 transmits a predetermined mail from this modem to other modems via power line transmission section 24 . The power line transmission unit 24 converts each signal into a high frequency signal, superimposes it on the power line, and transmits it to the outside.

The human sensor unit 16 is a sensor having a human sensing function using infrared rays. A signal indicating an abnormality from the human sensor unit 16 is transmitted to the human detection signal receiver unit 17 . The speaker unit 18 has an output function of outputting sound. The display unit 19 displays various information. A light emitting unit (light) 26 outputs light that lights up or blinks. The operation unit 20 operates the outputs of the speaker unit 18, the display unit 19, and the light emitting unit 26, and the like. The emergency power supply operation detection unit detects that an emergency power supply, which will be described later, has been operated due to a power failure or the like. The power recovery detection unit 25 detects that the once interrupted power supply is restored and the power supply is restarted. Further, referring to FIG. 7, the storage unit 21 stores output information and the like, and particularly stores a table in which addresses assigned to respective rooms and various sensors correspond to each other. The numbers in the table correspond to the voice output content, display content, and mail content to be sent shown in FIG.

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

Next, referring to FIG. 4, the operation of modem 10 will be described in detail. In step 1, the control unit 28 determines whether the earthquake early warning has been received by the earthquake early warning receiving unit 13 or the detection signal has been received by the radio signal receiving unit 11 . For example, when the window W of the living room is unlocked by a suspicious person, the unlock sensor 37 detects it and transmits a signal (detection signal) indicating that an abnormality has been detected to the unlock sensor 37 of the radio transmitter 30. Furthermore, the radio transmitter 30 notifies the radio 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 stores the detection signal from the "unlock sensor" in the storage unit 21 and corresponds to "address B" because it is the living room. Information is selected, the information is output from the speaker section 18 as a voice saying "The window in the living room has been opened", and the same message is displayed on the display section 19 (step 2). At the same time, the control section 28 instructs the output of the light emitting section 26 . Upon receiving the instruction signal, the light emitting unit 26 flashes strong light corresponding to a warning. It should be noted that the output from the speaker section of the modem 10 based on the detection of this unlock sensor can be stopped by resetting or canceling the operation section of any other modem 10 . Further, the output from the speaker unit of the modem 10 due to the detection of the fire sensor cannot be stopped unless the operation unit of the modem 10 receives the detection signal from the fire sensor that has detected the fire and resets or cancels the operation. This function is the same in other embodiments.

Furthermore, at the same time, the modem 10 installed in the living room transmits a signal indicating that it is the unlocking sensor described above and that it corresponds to the address B to the control signal receiving units 14 of all the other modems through the power line. 24. All the modems that have received this control signal output sound corresponding to the above signal from their loudspeakers. It should be noted that the operation unit 20 can be used to set which modem's speaker unit is to be used for output. For example, in the event of a fire, the above signal is transmitted only to the modem 10 installed in the couple's room. As a result, only the modem in the married couple's room performs each of the above outputs (step 2). Therefore, if it is detected by the unlocking (opening) sensor, it will be output from the speaker part of all modems, and the suspicious person will be removed from the criminal motivation and leave the outdoors. In order not to output from the speaker section of the modem in the room of the elderly or handicapped who cannot deal with it, it is possible to set the output from only the speaker section of a predetermined modem instead of all the modems. This function is the same in other embodiments. Also, the sound output from the speaker section can be differentiated according to the type of each sensor. For example, in the case of detection by the fire sensor, "Woo, woo, woo, there's a fire in the children's room." and, in the case of the above call, output "Ping-pong, ping-pong, come to the retirement room." Note that this distinguishing function functions in the same way in other embodiments, and the explanation thereof will be omitted.

Here, one radio transmitter 30 is normally installed in each modem room corresponding to one modem in each room. However, in addition, when the user travels with the radio transmitter 30 of the same type hanging from the neck, the radio signal of the radio transmitter is set to reach at least the nearest modem 10. there is Therefore, in the house, any modem can receive a call signal from a moving user.

As described above, the unlock sensor 37 transmits to the radio transmitter 30 that it has detected unlocking, and in step 3, any modem is activated within a predetermined time after the modem 10 receives the signal. When the radio signal receiving section 11 of 10 receives the call signal from the radio transmitter 30, a predetermined output is produced from the speaker section and the display section of the predetermined set modem. For example, when a user who has evacuated from an intrusion of a suspicious person moves to a retirement room and performs a call operation of the radio transmitter 30, the radio transmitter 30 transmits a call signal from the call signal transmission unit 35. do. Then, the call signal receiver 12 of the modem 10 installed in the retirement room receives the call signal (step 3).

Upon receipt of this call signal, the control unit 28 of the modem 10 installed in this retirement room writes in the table of the storage unit 21 that it is the "call signal" and the "address C" of the retirement room. A signal is transmitted from the control signal transmitting section 22 through the power line transmitting section 24 to a predetermined modem 10 other than the modem that outputs the signal from the speaker section. The control signal receiving section 14 of the other modem that has received this signal via the power line receiving section 15 stores information (6) which is a "calling signal" and corresponds to "address C" in the storage section 21. is output from the speaker section 18 as voice and from the display section 19 as display (step 4). In addition, when calling signals are transmitted from a plurality of radio transmitters 30 within a predetermined time after the output, each output from the speaker unit and the display unit of the predetermined modem has contents corresponding to the plurality of calls. are repeated in sequence.

In step 3, none of the modems 10 receive the call signal from the radio transmitter 30 within the predetermined time (step 5), and the door D of the retirement room is unlocked. If the lock sensor 37 does not detect (step 6), the modem 10 goes to standby. On the other hand, in step 3, none of the modems 10 receive the call signal from the radio transmitter 30 within the predetermined time, and in step 5, the door D of the retirement room is opened (unlocked). Lock) When the radio transmitter 30 receives the detection signal and the radio signal receiver 11 of the modem 10 receives the detection signal from the radio transmitter 30, the control unit 28 controls the speaker unit 18 and From the display unit 19, as described above, "Come to the retirement room!" is output by voice and display (step 7). At the same time, the control section 28 transmits a predetermined mail to a predetermined address from the mail transmission section 23 (step 8). The text of this mail 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 voice and display output information and the mail content stored in the storage unit 21 can be simply "door opened". From this, it can be determined that the person inside the building has evacuated.

On the other hand, when the earthquake early warning detection unit 13 of the modem 10 detects an earthquake early warning in step 1, the control unit 28 proceeds to step 9, and the speaker unit 18 outputs the information stored in the storage unit 21. The information "Earthquake. Be careful of furniture and falling objects." Furthermore, the light emitting unit 26 also outputs light corresponding to warning.

In the next step 10, the control unit 28 performs power-off control from the control signal transmission unit 22 through the power line transmission unit 24 so as to turn off the power of a predetermined electrical product, such as an electric heater, an electric stove, an iron, etc. Send a signal. In addition, a power adapter (not shown) that turns off the power when the control signal is received is attached between the electric appliance and the outlet. Upon receiving this power-off control signal, the electrical appliance is powered off. As a result, it is possible to prevent fires caused by electrical products when power is restored after a power outage.

Next, in step 11, a switch (not shown) of the wireless transmitter 30 is turned on by a user who is in the kitchen and carries the wireless transmitter within a predetermined time after receiving the earthquake early warning. If a call signal is sent by pressing the key, in step 16, when the call signal receiver 12 of the modem 10 set in the kitchen receives the call signal, the control signal transmitter 22 of the modem M It is a signal from the "transmitter" and transmits a signal to the effect that it was received in the "kitchen" to another predetermined modem 10 via the power line transmission unit. In this case, the modems 10 of the living room and the couple's room are set as other predetermined modems, and the calling signal receivers 12 of these modems receive the signals via the power line receivers 15, The corresponding information "Come to the kitchen!" Selection (setting) of the modem 10 to be output is performed by the operation unit 20 . This allows people indoors to quickly respond when the user is asking for help or assistance.

In addition, when the user carrying a radio transmitter and performing a call operation moves to another room after that, the call signal from the radio transmitter is not reset by the operation unit 20, Since the call signal continues to be transmitted, for example, when moving from the kitchen to the living room, similarly, "Come to the living room!" 20 respectively. As a result, even if the person who requested support or rescue moves once, the rescuer can immediately know the destination of the move by following the voice and display output.

Further, in step 11, if none of the modems 10 receives the call signal within the predetermined time, and in step 12, after the predetermined time elapses, the motion sensor of any modem 10 is activated. If the unit 16 also does not detect a person, the control unit 28 outputs an output requesting a call operation of the wireless transmitter 30 through the speaker unit and the display unit, for example, the information stored in the storage unit 21 "call button Please press!" is output (step 13). Further, in step 14, if the calling signal receiving unit 12 of any modem 10 does not receive the calling signal within a predetermined time after the output, the mail transmitting unit 23 transmits mail to a predetermined address ( step 15). In such a case, there is a high possibility that the person who was indoors has collapsed due to the earthquake and cannot be called by the radio transmitter. Therefore, it is judged by other people indoors that rescue is not possible, and it is possible to quickly request rescue from the outside by e-mail.

Also, in step 12, when the human sensor of the modem 10 detects a person in the married couple's room, the human detection signal receiving unit 17 of the modem 10 transmits the detection signal to the control unit 28, and the control unit 28 , which is the information stored in the storage unit 21, is output by voice and display from the speaker unit 18 and the display unit 20 (step 16). In addition, the modem 10 installed in the couple's room transmits a signal indicating that it is detected by the "human sensor" and that it is a "couple's room" to another predetermined modem, The same output is performed from the speaker section and the display section. Also, for example, when two people are in different indoor rooms, if one person is detected after the other person is detected, the output due to the detection of the other person is prioritized. . Moreover, as an output method, it is also possible to repeat the outputs of two people.

As described above, after transitioning from step 11 to step 12, in step 13, the safety of the resident can be confirmed by calling or requesting a call through the modem 10, and if the call is answered, i.e. If there is no calling operation by the radio transmitter, it is determined as an emergency, and a predetermined mail is sent to a predetermined address. As a result, for example, a rescuer (a person who helps) outside can respond.

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

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

Next, in step 24, after receiving the fire detection signal, the unlock detection signal from the opening (unlocking) sensor 37 of a specific door (for example, "emergency door") is unlocked within a predetermined time. When the (open) detection signal receiving unit 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 unit 28 of the modem stores it in the storage unit 21 . The information "The emergency door has opened!" is output from the speaker section and the display section (step 26). Furthermore, this control section 28 transmits a signal indicating that the opening of the emergency door has been detected to other predetermined modems 10 . Other predetermined modems that have received this signal similarly output "The emergency door has opened!" from the speaker section and the display section. As a result, people in the room can notice the escape from the emergency door and immediately escape from the emergency door.

On the other hand, in step 24, if the radio transmitter 30 does not receive the detection signal from the open sensor 37 within the predetermined time and the radio signal receiving section 11 of the modem 10 does not receive the signal, the modem 10 is controlled. 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 transmission unit 23 transmits the mail to the predetermined address via the power line transmission unit 24 (step 25). In this case, it is highly probable that there was no one in the room or that the person was lying down indoors, and the person who received the above-mentioned e-mail face outdoors can make a quick judgment about how to deal with it, and can take immediate action. .

(Embodiment 3) Next, Embodiment 3 of the power line communication apparatus of the present invention will be described in detail with reference to FIG. Since the configuration of the apparatus of this embodiment is the same as that of the first embodiment, the description thereof will be omitted. Since the operation of this apparatus differs depending on the software programs in the control unit and storage unit, the operation will be described below.

In step 30, when the earthquake early warning receiver 14 of the modem M (10) receives the earthquake early warning via the power line receiver 15, the controller 28 sends the control signal transmitter 22 of the modem through the power line transmitter 23, Send power-off signals to predetermined electrical appliances (first group) such as electric stoves, electric heaters, electric irons, etc. and power-on signals to predetermined lighting fixtures, televisions, radios, etc. (step 31). A power adapter (not shown) is attached between the above-mentioned predetermined electric product and an outlet, and the power adapter can control the power off and power on of each electric product by the control signal of the modem 10. It's like Next, predetermined information "Earthquake. Be careful of falling objects" is output from the speaker unit 18 and the display unit 19 of the modem 10 (step 32). Furthermore, at the same time, the light emitting unit 26 is made to flash strong light corresponding to warning. Each of these outputs is output from all modems.

After that, in step 33, the emergency power supply activation detection unit 24 detects whether or not the emergency power supply F (see FIG. 2) connected by the power line has started to operate due to the earthquake. When the operation is detected, the control unit 28 turns off the power from the control signal transmission unit 22 via the power line transmission unit 27 for a predetermined electric appliance (second group) among the electric appliances whose power is turned on. is transmitted (step 34). As described above, among the electrical appliances of the first group whose power is turned on, the electrical appliances belonging to the second group, except for the lighting fixture L, consume a large amount of power (air conditioners, microwave ovens, etc.). It is set in the unit 20, and the power consumption of the storage battery of the emergency power supply can be suppressed, and the operation of the emergency power supply can be prolonged. Further, in step 35, the control section 28 instructs the speaker section and the display section not to turn on the power of the electric appliance that has been turned off once, and to prevent turning on the power of other electric appliances. output the wording of That is, the speaker section and the display section output an instruction to the user to use the minimum number of electric appliances among the electric appliances.

Next, in step 36, when a predetermined period of time has passed since the power supply of the predetermined electric appliance (second group) was turned off in step 35, the operation of the speaker section 18, the display section 19 and the light emitting section 26 of the modem 10 is stopped. Further, in step 37, the control section 28 causes the mail transmission section 23 to send an e-mail to a predetermined address to the effect that the operation has stopped (step 37). As a result, the person who receives this e-mail can know the above-mentioned indoor conditions including the start of operation of the emergency power supply.

After that, when the power restoration detecting section 25 of the modem 10 detects restoration of the power (step 38), the speaker section and the display section of the modem 10 become operable (step 39). As a result, it becomes possible to notify (audio output, display output) of abnormality detection of each sensor.

In this embodiment, all the modems are provided with an earthquake early warning receiver, and even if the power supply to one modem is interrupted when the first earthquake occurs , etc.), and when a second earthquake occurs, another modem can handle the above. Further, if not all modems but a plurality of predetermined modems are provided with the earthquake early warning receiver, power to the modem having one earthquake early warning receiver is cut off after the first earthquake occurs. Even after that, another modem equipped with an earthquake early warning receiver can respond to the occurrence of the second earthquake thereafter.

INDUSTRIAL APPLICABILITY The power line communication device of the present invention is installed in general household houses, buildings, other facilities, etc., and has high industrial applicability because it can immediately notify indoors or outdoors of indoor abnormalities.

10 modem (power line communication device)
11 Radio signal receiving unit 12 Calling signal receiving unit 13 Earthquake early warning receiving unit 14 Control signal receiving unit 15 Power line receiving unit 16 Human sensor unit 17 Human detection signal receiving unit 18 Speaker unit 19 Display unit 20 Operation unit 21 Storage unit 22 Control signal Transmission unit 23 Mail transmission unit 24 Emergency power activation detection unit 25 Power restoration detection unit 26 Light emission unit 27 Power line transmission unit 28 Control unit

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, An earthquake early warning receiving unit for receiving earthquake early warnings from the outside, wherein at least one modem among the plurality of modems has a control signal transmitting unit for controlling on and off of the plurality of electric appliances connected to the power line. each modem includes a speaker section for outputting voice, a power line transmission section for transmitting a power line signal via the power line, a power line reception section for receiving the power line signal via the power line, and the above sections. and a control unit for controlling the power line communication device, wherein the power line is connected to an emergency power supply device that detects a power failure and supplies power, and the emergency power supply startup detects that the power supply device has started. 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 the power failure occurs. When the emergency power supply detection unit detects that the emergency power supply device has started due to the occurrence of the 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 a power line arranged across each space, and at least one modem among the plurality of modems, An earthquake early warning receiving unit for receiving earthquake early warnings from the outside, wherein at least one modem among the plurality of modems has a control signal transmitting unit for controlling on and off of the plurality of electric appliances connected to the power line. each modem includes a speaker section for outputting voice, a power line transmission section for transmitting a power line signal via the power line, a power line reception section for receiving the power line signal via the power line, and the above sections. and a control unit for controlling the power line communication device, wherein the power line is connected to an emergency power supply device that detects a power failure and supplies power, and the emergency power supply startup detects that the power supply device has started. 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 the power failure occurs. When the emergency power detection unit detects that the emergency power supply has been activated, the control signal transmission unit sends the control signal to the set electric appliance among the plurality of predetermined electric appliances to which the on-signal has been transmitted. Send an off signal.

In claim 1 of the present invention, first, upon receiving an earthquake early warning, for example, electric appliances that may cause a fire if turned on are turned off. Also, for example, electrical appliances necessary during or after an earthquake are turned on. Next, after the emergency power supply is activated, for example, among electrical appliances that are on, reduce the power consumption of the emergency power supply, or if it is on when the power is restored, it will cause a fire. Turn off electrical appliances that may cause

In claim 2 of the present invention, first, upon receiving an earthquake early warning, for example, necessary electric appliances are turned on during or after an earthquake. Next, after the emergency power supply operates, among the electric appliances in the on state, for example, reduce the power consumption of the emergency power supply, or if it is in the on state when the power failure is restored, a fire will occur. Turn off electrical appliances that may cause

Claims (2)

a plurality of modems installed in each space and capable of communicating with each other via power lines arranged over each space;
at least one modem among the plurality of modems has an earthquake early warning receiver for receiving an earthquake early warning from the outside;
at least one modem among the plurality of modems has a control signal transmission unit that controls turning off of the electrical appliance connected to the power line;
Each modem includes a speaker unit that outputs voice, a power line transmission unit that transmits a power line signal via the power line, a power line reception unit that receives the power line signal via the power line, and a control that controls each of the above units. and a power line communication device,
In the power line communication device having an emergency power supply startup detection unit that detects a power failure and supplies power to the power line, and detects that the power supply has started,
When the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an off signal to a plurality of predetermined electric appliances, and then the power failure occurs and the emergency power supply is activated. is detected by the emergency power detection unit, the control signal transmission unit transmits an off signal to the electrical appliance selected from the plurality of predetermined electrical appliances. 2. The power line communication device according to claim 1, wherein when the earthquake early warning receiving unit receives the earthquake early warning, the control signal transmitting unit transmits an off signal to a plurality of predetermined electric appliances, and then a power failure occurs. when the emergency power detection unit detects that the emergency power supply device has been activated by the power line communication equipment.

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