JP6191974B2 - Energy management system - Google Patents

Description

  The present invention relates to an energy management system that manages energy (electric energy) generated and consumed in a house.

  In recent years, with the deterioration of power supply due to the shutdown of nuclear power plants, power saving has been demanded not only in industry but also in general households. And the energy management system as described in patent document 1 is considered effective as one means of promoting the power saving (energy saving) in a house. The conventional example described in Patent Document 1 measures power consumption for each of a plurality of branch circuits in a distribution board for branching and wiring AC power supplied from a commercial power system. Each power consumption is displayed on a monitor device installed in the living room of the house. In other words, it can be expected that the resident of the house is encouraged to take an energy-saving action such as turning off unnecessary lights by “visualizing” the usage status of electric power (electric energy) in the house. Furthermore, in the conventional example described in Patent Document 1, if the power is excessively used, an electric device (load device) having a large amount of power consumption such as an air conditioner may be remotely controlled to be stopped.

  There is also a security intercom system that displays the amount of power measured by the power measuring device on the display of the intercom device (see, for example, Patent Document 2). The security intercom system is an intercom device installed in the home (interphone master unit) with an electric lock or security / disaster prevention sensor wired or wirelessly connected, and an alarm is detected by the intercom device when an abnormality is detected by the security / disaster prevention sensor. Or unlocking and unlocking an electric lock from an intercom device.

JP 2009-130983 A JP 2010-288227 A

  By the way, the energy management system described in Patent Document 1 and the security intercom system described in Patent Document 2 did not operate in cooperation with each other even though they have a common function of visualizing power consumption. . In particular, anomaly detection by the crime prevention / disaster prevention sensor and the lock / unlock state of the electric lock were not linked with the control of the load device.

  The present invention has been made in view of the above-described problems, and an object thereof is to improve usability by expanding the cooperation range to the security field.

The energy management system of the present invention receives a power measurement value measured by a measurement device that measures power supplied from a power system or a distributed power source to a load device, and the load device is received according to the received power measurement value. A control device for controlling, and one or more security sensors for detecting an abnormality relating to crime prevention and disaster prevention, and a monitoring device for notifying abnormality detection information when any of the security sensors detects an abnormality, The monitoring device can be selectively switched between a warning mode when the resident is absent and a non-warning mode when the resident is at home, and the control device is set to the non-warning mode. a case in which, and, when the load device in response to the power measurement value is determined to be operating, the monitoring device accepted took the abnormality from Controlling said load device in accordance with the exit information and the power measurement value, wherein the monitoring device is a case has been set to alert mode, and the load device in response to the power measurement value is operating If it is determined, the load device is controlled according to the measured power value .

  The energy management system of the present invention has an effect that the usability can be improved by extending the cooperation range to the security field.

It is a system configuration figure showing an embodiment of an energy management system concerning the present invention. It is a block diagram of the measurement apparatus same as the above. It is a block diagram of the control apparatus same as the above. It is a block diagram of the monitoring apparatus same as the above.

  Hereinafter, embodiments of an energy management system according to the present invention will be described in detail with reference to the drawings.

  The present embodiment has a system configuration as shown in FIG. The solar cell 5, the power conditioner (hereinafter abbreviated as “power conditioner”) 6, and the power storage device 7 constitute a distributed power source including a grid-connected solar power generation system. Since the grid-connected photovoltaic power generation system and the power conditioner 6 are well known in the art, a detailed description of the configuration and operation is omitted.

AC power supplied from the power conditioner 6 and AC power supplied from a power system (not shown) are distributed to a load device in the house by a residential distribution board (hereinafter abbreviated as “house board”) 8. This housing board 8 is well known in the art, and a main switch (main trunk breaker) and a plurality of branch switches (branch breakers) are housed in a cabinet mounted on a wall, and the branch circuit is branched by the branch switch. The load equipment is connected directly or through an outlet. The load device includes, for example, an electromagnetic cooker, a lighting fixture, and the like in addition to an air conditioner (hereinafter, abbreviated as an air conditioner) 9 that serves as both a cooling device and a heating device. However, the housing panel 8 in this embodiment is provided with a current sensor for each branch switch (branch circuit) as in the conventional example described in Patent Document 1, and the current for each branch circuit (consumption consumed by the load device). Current) can be measured .
The measuring device 1 acquires current measurement values from a plurality of current sensors provided on the housing board 8 and calculates power consumption (instantaneous power) and power consumption (integrated power amount) for each branch circuit. As shown in FIG. 2, the measuring device 1 includes a calculation unit 10, a current sensor connection unit 11, a wireless communication unit 12, a memory 13, a meter interface (I / F) unit 14, a power control communication unit 15, and the like.

  A plurality of current sensors of the housing panel 8 are connected to the current sensor connection unit 11, and current measurement values measured by the respective current sensors are taken into the calculation unit 10 via the current sensor connection unit 11. The calculation unit 10 is composed of a microcomputer, calculates power consumption and power consumption for each branch circuit based on the current measurement value taken in via the current sensor connection unit 11, and stores the calculation result in the memory 13. The memory 13 is composed of a nonvolatile semiconductor memory such as a flash memory or an EEPROM, and stores power consumption and power consumption (hereinafter referred to as a power measurement value) calculated by the calculation unit 10.

  Further, the power-con communication unit 15 realizes data communication between the arithmetic unit 10 and the power-con 6 and performs, for example, serial communication conforming to a general-purpose serial communication protocol such as RS-232C or RS-485. Do. For example, the wireless communication unit 12 conforms to “specific low power wireless station” or “weak wireless station” defined in Article 6 of the Radio Law Enforcement Regulations, and performs wireless communication between the arithmetic unit 10 and the control device 2. It is realized. The meter I / F unit 14 acquires the gas usage measured by the gas meter M1 in the house and the measured values of the water usage measured by the water meter M2, and passes them to the calculation unit 10. The calculation unit 10 stores the measured values of the gas usage and the water usage acquired through the meter I / F unit 14 in the memory 13.

  The control device 2 receives a power measurement value measured by the measurement device 1 and controls a load device (such as an air conditioner 9) according to the received power measurement value. As shown in FIG. 3, the control device 2 includes a control unit 20, a memory 21, a wireless communication unit 22, a network communication unit 23, a load device communication unit 24, and the like.

  The wireless communication unit 22 performs wireless communication in the same manner as the wireless communication unit 12 of the measurement device 1, receives a wireless signal transmitted from the wireless communication unit 12 of the measurement device 1, and transmits the wireless signal to the wireless signal. Various data included (power measurement values, power generation amount of the solar battery 5, etc.) are passed to the control unit 20. The control unit 20 includes a microcomputer, and stores various data received from the wireless communication unit 22 in a memory 21 including a nonvolatile semiconductor memory such as a flash memory or an EEPROM.

  The network communication unit 23 performs network communication conforming to a LAN standard using a twisted pair cable such as 100BASE-TX, and is connected to a LAN port (not shown) of the router 110 via the twisted pair cable. The router 110 has a plurality of LAN ports, and the monitoring device 3 and the display device 4 are connected to the other LAN ports via a twisted pair cable. The display device 4 is, for example, a television receiver equipped with a network communication function. The load device communication unit 24 performs wireless communication with the load device using a wireless medium such as radio waves and infrared rays. However, since the network communication unit 23 and the load device communication unit 24 can be realized by a conventionally known technique, detailed description thereof is omitted.

  The monitoring device 3 has a function equivalent to that of the security intercom device described in Patent Document 2, and includes a call function with the door phone slave unit 310 installed at the outside entrance of the house, and an electric lock 320 installed at the entrance door. Locking / unlocking function, security / disaster prevention sensor (hereinafter referred to as security sensor) monitoring / notification function, and the like. In addition, the door phone slave unit 310 is equipped with a television camera, and the monitoring device 3 can make a call while displaying a video (moving image of a visitor) captured by the television camera on a display device (liquid crystal display). It is like that.

  As shown in FIG. 4, the monitoring device 3 includes a control unit 30, a voice input / output unit 31, a call processing unit 32, a network communication unit 33, a sensor communication unit 34, a display unit 35, an electric lock management unit 36, and the like. The audio input / output unit 31 includes a microphone and a speaker, an A / D converter that A / D converts an audio signal collected by the microphone, and a D / D that converts a digital audio signal into an analog audio signal and outputs the analog audio signal to the speaker. A converter is included. The call processing unit 32 processes a voice signal (speech signal) input from the voice input / output unit 31 and a voice signal (received signal) input from the door phone slave unit 310 to thereby process a voice switch, an echo canceller, and the like. Realize functions related to the telephone call.

  The display unit 35 includes a display device such as a liquid crystal display, a drive circuit that drives the display device to display an image, and the like. Although not shown in the figure, input devices such as a touch panel and a push button switch that are integrated with the display device of the display unit 35 are provided, and various operation inputs input by these input devices are controlled. Passed to section 30.

  The network communication unit 33 performs network communication conforming to a LAN standard using a twisted pair cable such as 100BASE-TX, and is connected to a LAN port (not shown) of the router 110 via the twisted pair cable. However, the network communication unit 33 may perform wireless communication complying with the wireless LAN standard together with the network communication unit 23 of the measuring device 2.

  The sensor communication unit 34 performs wireless communication with a plurality of security sensors using a wireless medium such as radio waves and infrared rays, receives abnormality detection information from each security sensor, and passes it to the control unit 30. The security sensors include, for example, a window opening / closing sensor 330 that detects opening / closing of a window, a window glass breaking detection sensor 331 that detects breaking of a window glass, a door opening / closing sensor 332 that detects opening / closing of a door (entrance door), and a fire. Fire alarm 333 that sounds an alarm sound.

  The electric lock management unit 36 performs wireless communication with the electric lock 320 using a wireless medium such as radio waves and infrared rays, and locks and unlocks the electric lock 320 and confirms the state (locked or unlocked) of the electric lock 320. Is. That is, since the electric lock 320 can be locked and unlocked even by using an operation device (not shown) installed at the outside entrance, it is necessary to confirm the state of the electric lock 320 by the electric lock management unit 36.

  The control unit 30 includes a microcomputer, and realizes a call function with the door phone slave unit 310, a lock / unlock function of the electric lock 320, a security sensor monitoring / notification function, and the like by controlling the units 31 to 36. The control unit 30 also has a warning mode for notifying abnormality detection information from the speaker or the display unit 35 when the security sensor detects an abnormality, and a non-warning that does not notify abnormality detection information even if the security sensor detects an abnormality. It can be switched alternatively to the mode. That is, when the resident is at home, the mode is switched to the non-warning mode, and when the resident is absent (absence), the mode is switched to the warning mode. However, the details of the call function, the locking / unlocking function, and the monitoring / notification function realized by the control unit 30 are well known in the art as disclosed in Patent Document 2, and thus the description thereof is omitted.

  Next, the cooperative operation with the security sensor which is the gist of the present invention will be described. For example, when the resident activates the air conditioner 9, the current in the branch circuit to which the air conditioner 9 is connected increases significantly. Therefore, the control unit 20 of the control device 2 can determine that the operation of the air conditioner 9 has been started based on the power measurement value received from the measurement device 1. When determining that the operation of the air conditioner 9 is started, the control unit 20 causes the network communication unit 23 to transmit a packet including a command for inquiring the detection status of the window opening / closing sensor 330 and the door opening / closing sensor 332 to the monitoring device 3.

  In the monitoring device 3, the command included in the packet received by the network communication unit 33 is passed to the control unit 30. When receiving the command, the control unit 30 causes the sensor communication unit 34 to transmit a signal for inquiring the detection status to the window opening / closing sensor 330 and the door opening / closing sensor 332. When receiving the inquiry signal, the window opening / closing sensor 330 and the door opening / closing sensor 332 return a response signal including the detection status (window opening or window closing, door opening or door closing) at that time to the monitoring device 3.

  The control unit 30 of the monitoring device 3 causes the network communication unit 33 to transmit a packet including the detection status included in the response signals returned from the window opening / closing sensor 330 and the door opening / closing sensor 332 to the control device 2.

  In the control device 2, the detection status included in the packet received by the network communication unit 23 is passed to the control unit 20. The control unit 20 does nothing if the received detection status is window closed and door closed, and generates a control command that instructs the air conditioner 9 to stop if the received detection status is window open or door open. The wireless signal including the control command is transmitted from the load device communication unit 24 to the air conditioner 9. Furthermore, the control unit 20 generates a notification command for notifying that the air conditioner 9 has been forcibly stopped because the window or door is open, and transmits a packet including the notification command from the network communication unit 23 to the display device 4. Let

  The air conditioner 9 stops when it receives a radio signal and receives the control command. Further, when the display device 4 receives the packet and receives the notification command, the display device 4 displays a message on the screen that the air conditioner has been forcibly stopped because the window or door is open.

  That is, if the air conditioner 9 is operated in a state where the doors and windows are open, the cooling or heating efficiency is reduced and the power consumption of the air conditioner 9 is increased. It is possible to save energy by forcibly stopping. In addition, since the resident is notified that the air conditioner 9 has been forcibly stopped and displayed on the display device 4, the resident can be prompted to take action to close the window or door.

  Further, the control unit 30 of the monitoring device 3 generates a notification command for notifying that the non-warning mode and the warning mode are switched to each other and that the electric lock 320 is locked or unlocked, and The included packet is transmitted from the network communication unit 33 to the control device 2.

  In the control device 2, the control unit 20 that has received the notification command determines the state (operation or stop) of a predetermined load device, for example, the air conditioner 9, based on the power measurement value received from the measurement device 1. When the monitoring device 3 is switched to the warning mode or when the electric lock 320 is locked, the control unit 20 controls the control command from the load device communication unit 24 as described above if the air conditioner 9 is in operation. (Packet) is transmitted to stop the air conditioner 9. In other words, if the monitoring device 3 is switched to the warning mode or the electric lock 320 is locked, it is determined that there is a high possibility that the resident is absent, and the control unit 20 forcibly stops the air conditioner 9 to stop the air conditioner 9. Unnecessary power consumption due to forgetting to cut off can be suppressed. However, the load device to be forcibly stopped is not limited to the air conditioner 9 and may be, for example, a lighting fixture.

  Here, the control unit 20 of the control device 2 can acquire the measured values of the gas usage amount of the gas meter M1 and the water usage amount of the water meter M2 from the measuring device 1. Therefore, in each control operation described above, the control unit 20 may control the load device based on the measured values of the gas usage amount and the water usage amount instead of the power measurement value. In addition, when the control unit 20 determines that there is a high possibility that the resident is absent as described above, the control unit 20 transmits a control command to the power conditioner 6 via the measurement device 1 and sets a preset operation mode (for example, a power storage mode). The operation mode may be switched to give priority to power storage or power sale to the device 7.

  By the way, the security sensor and the electric lock 320 are simultaneously supplied with power in a predetermined distribution from both the power system and the distributed power source, or alternatively supplied with power from either the power system or the distributed power source. It is preferred that Note that, when the power system fails, the control unit 20 may forcibly stop a load device with a low importance, for example, the air conditioner 9.

  On the other hand, the fire alarm 333 is a so-called interlocked house fire alarm in which all the fire alarms 333 are interlocked to notify a fire alarm when any of the fire alarms 333 detects a fire. Is desirable. However, it is only necessary that at least one of the plurality of fire alarms 333 can wirelessly communicate with the monitoring device 3. The fire alarm device 333 capable of wireless communication with the monitoring device 3 is configured so that, when the own device or other fire alarm device 333 detects a fire, the power supplied to the electric lock 320 is fully supplied instead of the energy saving mode. 3 is wirelessly requested, and the monitoring device 3 is wirelessly requested so that the window sensors 330 and 331 are disabled and the window sensors 330 and 331 are disabled and the window sensors 330 and 331 are disabled. In this way, when any fire alarm 333 detects a fire, it is in a position to reliably open the electric lock 320, and it is not judged abnormal even if a window is opened to allow smoke to escape outdoors. As described above, the monitoring device 3 performs determination processing so that the detection function of the window sensors 330 and 331 is stopped or the wireless notification from the window sensors 330 and 331 is not accepted.

  As described above, in the present embodiment, the control device 2 receives the abnormality detection information from the monitoring device 3 and controls the load device according to the received abnormality detection information and the power measurement value. It is possible to improve usability by enlarging.

DESCRIPTION OF SYMBOLS 1 Measuring apparatus 2 Control apparatus 3 Monitoring apparatus 5 Solar cell (distributed power supply)
6 Power conditioner (distributed power supply)
7 Power storage device (distributed power supply)
9 Air conditioner (loading equipment)
330 Window Open / Close Sensor (Security Sensor)
331 Window glass breakage detection sensor (security sensor)
332 Door open / close sensor (security sensor)
333 Fire alarm (security sensor)

Claims (6)

A control device that receives a power measurement value measured by a measurement device that measures power supplied to a load device from a power system or a distributed power source, and controls the load device according to the received power measurement value;
A monitoring device that monitors one or more security sensors that detect anomalies related to crime prevention and disaster prevention, and that reports abnormality detection information when any of the security sensors detects an abnormality,
The monitoring device is alternatively switchable between a warning mode when the resident is absent and a non-warning mode when the resident is at home,
The controller is
Wherein a case the monitoring device is set to a non-alert mode, and, when the load device in response to the power measurement value is determined to be operating, the monitoring device accepted took the abnormality from Control the load device according to the detection information and the power measurement value ,
When the monitoring device is set to a warning mode and when it is determined that the load device is operating according to the power measurement value, the load device is set according to the power measurement value. An energy management system characterized by control .   The security sensor is simultaneously supplied with power from both the power system and the distributed power source in a predetermined distribution, or alternatively supplied with power from either the power system or the distributed power source. The energy management system according to claim 1.   An electric lock that is locked and unlocked by the monitoring device, and the electric lock is simultaneously supplied with power from a predetermined distribution from both the power system and the distributed power source, or the power system and the distributed 3. The energy management system according to claim 1, wherein power is selectively supplied from any one of the power sources.   The electric lock which is unlocked and unlocked by the monitoring device is provided, and the control device controls the load device according to the state of the electric lock. Energy management system. If the previous SL monitoring device is switched from the non-alert mode to the warning mode, the control device, to any one of claims 1 to 4, characterized in that stopping the load device to a predetermined The energy management system described.   At least one of a window opening / closing sensor for detecting opening / closing of a window or a door opening / closing sensor for detecting opening / closing of a door is provided as the security sensor, and a cooling device or a heating device is provided as the load device. When it is determined from the measured value that the operation of the cooling device or the heating device is started, the open state of the window is detected by the window open / close sensor, or the open state of the door is detected by the door open / close sensor. If it is, the operation | movement of the said cooling apparatus or the said heating apparatus will be stopped, The energy management system in any one of Claims 1-5 characterized by the above-mentioned.

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