JP2014120108A - Power monitoring device and power monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively estimate a power consumption for each type of electric power system in a facility.SOLUTION: A power monitoring system 10 is constituted by using a following power monitoring system 11. The consumption power of a PAC air conditioner 20 is estimated using a current value received by an air conditioning information reception part 71 from a communication adaptor 15 in an air-conditioning power estimation part 75. The consumption power for the number of lighted lamps is estimated using on/off information for each of lighting fixtures 42a to 42n received by a lighting information reception part 73 from a lighting control system 40 in an illumination power estimation part 76. A consent consumption power is estimated using on/off information of each of PCs 51a to 51n received by the PC information reception part 74 from a PC information acquisition system 50 in a consent power estimation part 78. A consumption power ratio of each electric power system is acquired from the whole estimation consumption power in an electric power ratio calculation part 79. A measured power consumption of the whole building (facility) of an electric meter 12 is prorated in accordance with a consumption power ratio so as to acquire the consumption power of each electric power system in a power conversion part 80.

Description

  The present invention relates to a power monitoring apparatus and a power monitoring system for estimating and displaying power consumption for each power system of various devices such as air conditioners, lighting devices, and OA (Office Automation) devices installed in buildings and factories. .

  In recent years, BEMS (Building and Energy Management System) has been introduced as one of the energy saving (hereinafter also abbreviated as energy saving) measures for electric power in facilities including buildings such as buildings and factories. BEMS installs a power meter for each power system such as an air conditioning system, lighting system, and outlet system in a building, measures the power consumption for each system, and reduces waste of power while checking the transition of each power consumption. In other words, it is a system for energy saving measures.

  As this type of system, for example, there is an energy management system described in Patent Document 1. In this system, PC (Personal computer) start / stop information and load factor information are acquired, and the power consumption of the PC is estimated. In addition, the estimation of the illuminance in the lighting device and the change in the amount of heat of the air conditioner are obtained, and the change in the efficiency of the air conditioner is calculated by comparing the actual measured value and the theoretical value of the obtained heat amount. Judgment is being made.

Japanese Patent Laid-Open No. 2004-280618

However, the system of Patent Document 1 does not estimate the power consumption of a PAC (packaged) air conditioner often introduced into buildings such as office buildings or the power consumption of lighting devices. For this reason, power consumption cannot be estimated for every various electric power systems, such as an air conditioning system in a building, an illumination system, and an outlet system. Therefore, there exists a problem that the energy-saving measure in a building cannot be performed appropriately.
In addition, in order to grasp the power consumption of various power systems, it is conceivable to introduce a watt meter for each power system, but since the power meter is expensive, it is very expensive to introduce many power meters. There is a problem of hanging.

  This invention is made | formed in view of such a situation, and it aims at providing the power monitoring apparatus and power monitoring system which can estimate power consumption cheaply for every various electric power grid | systems in a facility.

In order to solve the above-described problem, the power monitoring apparatus of the present invention includes an air conditioning power estimation unit that estimates power consumption of an air conditioner using information on an operating state of the air conditioner installed in a facility to be managed. Illuminating power estimation means for estimating the power consumption of the lighting fixtures using information on the operating status of each of the plurality of lighting fixtures installed in the facility, and the power consumption of at least the computer installed in the facility Outlet power estimation means for estimating the power consumption of the outlet, the estimated power consumption of the air conditioning equipment, the power consumption of the lighting fixture, and the total power consumption of the outlet power consumption, The power ratio calculating means for obtaining the power consumption ratio of each power system of the air conditioner, the lighting fixture and the outlet, and the power installed in the facility The power conversion means for obtaining the power consumption of each power system by proportionally allocating the power consumption of the entire facility measured in step 1 by the power consumption ratio of each power system determined by the power ratio calculation means. .
Further, the power monitoring system of the present invention obtains information on the operating state of the power monitoring apparatus, a wattmeter that measures power consumption of the electrical equipment of the entire facility, and an air conditioner of the entire facility, and performs the communication. Communication means for transmitting to the air conditioning power estimating means via a line, and lighting control for acquiring information on the operating state of each lighting fixture of the entire facility and transmitting to the lighting power estimating means via the communication line Means for acquiring information on the operating state of at least the computer of the entire facility and transmitting the information to the outlet power estimating means via the communication line. In the power monitoring apparatus, the air conditioning power estimation The means estimates the power consumption of the air conditioner using the information on the operating state of the air conditioner received from the communication means, and the illumination power estimation means receives the information from the illumination control means. The power consumption of the lighting fixture is estimated using the received information on the operating status of each lighting fixture, and the outlet power estimation means uses at least the information on the operating status of the computer received from the PC information acquisition means. The outlet power consumption is estimated using the power ratio calculating means, and the power ratio calculation means uses the estimated power consumption of the air conditioner, the power consumption of the lighting fixture, and the power consumption ratio of each power system using the outlet power consumption. The power conversion means receives the power consumption of the entire facility measured by the power meter via a communication line, and proportionally distributes the received power consumption by the power consumption ratio to each power system. The power consumption was calculated.

  ADVANTAGE OF THE INVENTION According to this invention, the power monitoring apparatus and power monitoring system which can estimate power consumption cheaply for every various electric power grid | systems in a facility can be provided.

It is a block diagram which shows the structure of the electric power monitoring system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the power monitoring apparatus in the power monitoring system which concerns on this embodiment. It is a figure which shows the correspondence of ID number in a database part of an electric power monitoring apparatus, registration ID number, seat coordinate information, illumination coordinate information, and illumination group information. It is a figure which shows the relationship between the daily power consumption estimated value calculated | required with a power monitoring apparatus, and power consumption actual value. It is a block diagram which shows the example of 1 structure of an electric power monitoring apparatus. It is a flowchart for demonstrating the operation | movement which calculates | requires and displays each power consumption of an air conditioning system, an illumination system, and an outlet system | strain by an electric power monitoring system. It is a flowchart for demonstrating the operation | movement which performs the 1st estimation of the illumination system power consumption by the illumination power estimation part of an electric power monitoring apparatus. It is a flowchart for demonstrating the operation | movement which performs the 2nd estimation of the illumination system power consumption by the illumination power estimation part of an electric power monitoring apparatus. It is a flowchart for demonstrating the operation | movement which performs the 1st estimation of outlet system power consumption by the outlet power estimation part of an electric power monitoring apparatus. It is a flowchart for demonstrating the operation | movement which performs the 2nd estimation of outlet system power consumption by the outlet power estimation part of an electric power monitoring apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
<Configuration of Embodiment>
FIG. 1 is a block diagram showing a configuration of a power monitoring system 10 according to an embodiment of the present invention.
The power monitoring system 10 estimates power consumption for each of various power systems such as an air conditioning system, a lighting system, and an outlet system in a building (for example, a building) that is a management target facility and displays the power so that it can be recognized by a person. . The power monitoring system 10 includes a power monitoring device 11 and a wattmeter 12 that measures the power consumption of the electrical equipment of the entire building. The power monitoring device 11 is connected to the power monitoring device 11 via a communication adapter 15 connected to a network line 14. A PAC air conditioner 20 is connected, and an entrance / exit management system 30, a lighting control system 40, a PC information acquisition system 50, and other systems 60 are further connected via a network line 14. However, the network line 14 is a wired LAN (Local Area Network) line, a wireless LAN line, or the like.

  The PAC air conditioner 20 includes an outdoor unit 21 and a plurality of indoor units 22a, 22b, ..., 22n connected to the outdoor unit 21. The PAC air conditioner 20 includes a refrigeration cycle for performing cooling and heating in both the outdoor unit 21 and the indoor units 22a to 22n, and includes a compressor, an evaporator, a condenser, a blower, and the like (not shown). The unit is built in timely.

  Further, the PAC air conditioner 20 includes a sensor (not shown) in the outdoor unit 21 and each of the indoor units 22a to 22n. The motor rotation speed and current value of the outdoor unit 21 detected by the sensor, and the suction of the indoor units 22a to 22n. Air conditioning information (operation status information) 23 related to the operation status of the PAC air conditioner 20 such as the temperature and blow-off temperature, as well as the set value of the air volume, is output to the communication adapter 15 via the network line 14. The communication adapter 15 outputs the air conditioning information 23 to the power monitoring apparatus 11 via the network line 14. Note that the sensor includes an ammeter for measuring (detecting) current.

  The entrance / exit management system 30 includes a card reader 31 connected to the network line 14 and provided at the entrance / exit of each room (not shown). When the person enters or exits the card reader 31, the card reader 31 is placed on the sensor. The entry / exit information 33 such as an ID (identification) number read in step S3 is output to the power monitoring apparatus 11 via the network line 14. However, the ID number included in the entry / exit information 33 is associated with entry information or exit information indicating whether the card reader 31 has read the entry or exit. The card reader 31 may be a biometric authentication device that authenticates individual-specific features such as fingerprints, veins, irises, and faces. In this case, when an individual feature is authenticated by the biometric authentication device, a unique ID number associated with the feature is output to the power monitoring device 11 as the entry / exit information 32.

  In the lighting control system 40, a plurality of lighting fixtures 42a, 42b,..., 42n are connected by a control signal line 41, and each lighting fixture 42a-42n is based on information such as a human sensor or a camera (not shown). On / off control is performed, and lighting information (operation status information) 43 such as lighting on / off information at the time of this control is output to the power monitoring apparatus 11 via the network line 14. However, the illumination information 43 includes on / off information for each of the lighting fixtures 42a to 42n.

  In the PC information acquisition system 50, a plurality of PCs 51a, 51b,..., 51n are connected via the network line 14, and PC information (operation status information) such as on / off information and operation rate information of each of the PCs 51a to 51n. ) 53 is acquired and output to the power monitoring apparatus 11 via the network line 14.

The other system 60 is a system that includes an elevator, an escalator, an automatic door, a disaster prevention device, a water heater, and other power devices and controls them.
FIG. 2 is a block diagram showing the configuration of the power monitoring apparatus 11. The power monitoring apparatus 11 is installed, for example, in a central monitoring room of a building, and includes an air conditioning information receiving unit 71, an entrance / exit information receiving unit 72, an illumination information receiving unit 73, a PC information receiving unit 74, an air conditioner. The power estimation unit 75, the illumination power estimation unit 76, the database unit 77, the outlet power estimation unit 78, the power ratio calculation unit 79, the power conversion unit 80, and the display unit 81 are configured.

The database unit 77 stores in advance a registration ID number 77a, seat coordinate information 77b, illumination coordinate information 77c, illumination group information 77d, illumination power consumption information 77e, and PC power consumption information 77f. Further, in the database unit 77, as shown in FIG. 3A, the registration ID number 77a is associated with the ID number of the entry / exit information 33, and as shown in FIG. As shown in (c), the seat coordinate information 77b indicating the position is replaced with the illumination coordinate information 77c indicating the position of the lighting fixture (for example, the lighting fixture 42a shown in FIG. 1). The illumination coordinate information 77c is associated with illumination groups (for example, illumination fixtures 42a to 42n) at positions indicated by the illumination coordinate information 77c and illumination group information 77d indicating the number of illumination fixtures of the group, and are tabulated.
For example, the air conditioning information receiving unit 71 receives the air conditioning information 23 from the communication adapter 15 (see FIG. 1) via the network line 14 at predetermined time intervals.

  The air conditioning power estimation unit 75 uses the air conditioning information 23 received by the air conditioning information receiving unit 71 to estimate the power consumption of the PAC air conditioner 20 (see FIG. 1). That is, in this example, the power consumption of the PAC air conditioner 20 (see FIG. 1) is estimated using at least the current value of the outdoor unit 21 (see FIG. 1) in the air conditioning information 23. This estimation is performed by calculating the product (i × v) of the received current value i and the rated voltage value v of the outdoor unit 21. However, the voltage value v is acquired in advance from a catalog or the like and stored in a storage unit (not shown) of the air conditioning power estimation unit 75. When the PAC air conditioner 20 is a three-phase power source, the power consumption is calculated by (√3) × i × v. In the case of alternating current, the power factor is also multiplied. In this way, the power consumption at regular time intervals is obtained for a predetermined period such as one week and stored in the storage means, and the process of estimating the power consumption for one day is also performed on weekdays and holidays. Further, the voltage of the PAC air conditioner 20 may be measured. Furthermore, the power consumption may be estimated from the motor rotation speed of the outdoor unit 21.

The power consumption estimated value obtained by this power consumption estimation is obtained as a power consumption estimated value for one day (24 hours) on weekdays as indicated by a solid line L1 in FIG. Since the estimated power consumption value L1 is estimated by calculation using the actual current value i and the rated voltage value v, it is substantially the same value as the actually measured power consumption value indicated by the broken line L2 in FIG.
The power consumption estimated by the air conditioning power estimation unit 75 shown in FIG. 2 as described above is called the air conditioning system estimated power consumption P1, and this is output to the power ratio calculation unit 79.

The entrance / exit information receiving unit 72 receives the entrance / exit information 33 from the entrance / exit management system 30 (see FIG. 1) via the network line 14 at regular time intervals.
The illumination information receiving unit 73 receives the illumination information 43 from the illumination control system 40 (see FIG. 1) via the network line 14 at regular time intervals, for example.

  The illumination power estimation unit 76 acquires a registration ID number 77a corresponding to the ID number of the entrance / exit information 33 received by the entrance / exit information receiving unit 72 from the database unit 77 as shown in FIG. The seat coordinate information 77b associated with 77a is acquired. Furthermore, the illumination coordinate information 77c associated with the acquired seat coordinate information 77b is acquired, and the illumination group information 77d at the position indicated by the illumination coordinate information 77c is acquired.

  Further, the illumination power estimation unit 76 determines that the lighting fixtures 42a to 42n of the group indicated by the illumination group information 77d are turned on when the ID number that is the basis from which the illumination group information 77d is acquired is the one at the time of entering the room. To do. However, when a person in the same group who is already determined to be lit enters the room, the group is overlapped, so the determination of lighting is not performed and no processing is performed. After this determination, the illumination power consumption information 77e indicating the power consumption p per unit of the lighting fixtures 42a to 42n is acquired from the database unit 77, and one unit power consumption p is assigned to the number n of the lighting fixtures 42a to 42n in the lit state. Multiply (n × p) to determine the power consumption of the lighting group. This power consumption is added to the estimated power consumption of the lighting system for the entire building previously obtained by the same method, and the addition result is estimated as the lighting system estimated power consumption P2 for the entire building. The power consumption per lighting fixture can be obtained from a catalog or the like. In this estimation process, it is possible to estimate the power consumption of the illumination system by detecting the entrance / exit of a person without detecting the on / off states of the actual lighting fixtures 42a to 42n. Accordingly, it is possible to eliminate the need for a wiring path such as detecting on / off of each illumination system by wiring connection.

  On the other hand, the lighting power estimation unit 76 determines that the lighting fixtures 42a to 42n of the group indicated by the lighting group information 77d are turned off when the ID number that is the basis for obtaining the lighting group information 77d is the one at the time of leaving the room. . However, when a plurality of ID numbers by a plurality of persons are recognized in the same group that is determined to be turned on, it is determined that the last remaining ID number is turned off when leaving the room. When making this determination, subtract the power consumption of the extinguished lighting group from the estimated lighting system power consumption of the entire building that was previously calculated, and estimate the subtraction result as the estimated lighting system power consumption of the entire building. Do.

Moreover, the illumination power estimation part 76 performs the estimation which calculates | requires the power consumption of the lighting fixtures 42a-42n using the information of the operation condition for every lighting apparatus of the illumination information 43 received by the illumination information receiving part 73. The information on the operation status of each illumination device in the illumination information 43 is at least on / off information for each illumination device in the illumination information 43 received by the illumination information receiving unit 73. From the information, the number n of lighting fixtures 42a to 42n is obtained, the lighting power consumption information 77e is obtained from the database unit 77, the lighting number n is multiplied by the lighting power consumption p (n × p), and the lighting is performed. Estimate the power consumption of the number n. In this estimation process, the power consumption of the illumination system is estimated using on / off information for each actual lighting device, so that the power consumption can be obtained more accurately.
Therefore, the illumination power estimation unit 76 is one of an estimation process for obtaining the power consumption of the lighting illumination group using the entrance / exit information 33 and an estimation process for obtaining the power consumption of the number of lighting fixtures n using the illumination information 43. Do one. Which estimation process is performed can be arbitrarily set. Note that both estimation processes may be performed and an average may be taken.

The power consumption estimated by the illumination power estimation unit 76 as described above is referred to as the illumination system estimated power consumption P2, and this is output to the power ratio calculation unit 79.
The PC information receiving unit 74 receives the PC information 53 from the PC information acquisition system 50 (see FIG. 1) via the network line 14 at regular time intervals, for example.

  The outlet power estimation unit 78 obtains the on-PC power consumption by using the operation status information of each of the PCs 51a to 51n in the PC information 53 received by the PC information receiving unit 74, and at least obtains the on-PC power consumption. Estimate outlet power consumption. The information on the operating status of each of the PCs 51a to 51n is at least on / off information of each of the PCs 51a to 51n in the PC information 53 received by the PC information receiving unit 74. From the on / off information, the PCs 51a to 51n When ON, PC power consumption information 77f indicating the power consumption pp per PC is acquired from the database unit 77, and the number of ON PCs m is multiplied by one unit power consumption pp (m × pp) to obtain each ON PC. The total power consumption is calculated and this is estimated as the outlet power consumption. The power consumption per PC is obtained from a catalog or the like.

  Further, the outlet power estimation unit 78 obtains the power consumption of one on-PC (for example, 51a), and multiplies the power consumption value by the load factor that is known from the load factor information of the PC 51a, thereby providing a more appropriate power consumption. Ask for. This process is performed for all the on-PCs, the total power consumption of all the on-PCs 51a to 51n is obtained, and this is estimated as the outlet power consumption.

Therefore, the outlet power estimation unit 78 uses the PC information 53 to estimate the outlet power consumption from the total power consumption of the on-state PCs 51a to 51n, and is more appropriate considering the operating rate for the on-state PCs 51a to 51n. One of the estimation processes for obtaining the outlet power consumption from the total power consumption is performed. Which is performed can be arbitrarily set. The outlet power estimation unit 78 receives on / off information of an OA (Office Automation) device such as a copying machine or a FAX (facsimile) device (not shown) via the network line 14 to estimate power consumption. May be included in the power consumption. At this time, the load information of the OA device may be taken into consideration.
The power consumption estimated by the outlet power estimation unit 78 as described above is called the outlet system estimated power consumption P3, and this is output to the power ratio calculation unit 79.

  The power ratio calculation unit 79 calculates a power consumption ratio that is a ratio of the estimated power consumption of each system to the total power consumption of the air conditioning system estimated power consumption P1, the illumination system estimated power consumption P2, and the outlet system estimated power consumption P3. This obtains the power consumption ratio for each predetermined time unit such as one hour unit or one day unit. The air conditioning system estimated power consumption P1, the illumination system estimated power consumption P2, and the outlet system estimated power consumption P3 are also simply abbreviated as P1, P2, and P3.

The power conversion unit 80 performs a calculation to proportionally distribute the power consumption of the entire building (facility) measured by the wattmeter 12 at the power consumption ratio for each power system obtained by the power ratio calculation unit 79, and for each power system. Find the power consumption.
The display unit 81 displays the power consumption for each power system determined by the power conversion unit 80 on a display (not shown) so that a person can recognize it. In the case of the present embodiment, the display is a central monitoring screen of the building.

  As shown in FIG. 5, the power monitoring apparatus 11 having such a configuration includes a CPU (Central Processing Unit) 101a, a ROM (Read Only Memory) 101b, a RAM (Random Access Memory) 101c, and a storage device in which a database unit 77 is constructed. (HDD: Hard Disk Drive or the like) 101 d, and these components 101 a to 101 d have a general configuration connected to the bus 102. In such a configuration, for example, the CPU 101a executes the program 101f written in the ROM 101b to realize each process control of the power monitoring apparatus 11 described above.

<Operation of Embodiment>
Next, the operation of obtaining and displaying the power consumption of the air conditioning system, the illumination system, and the outlet system by estimation using the power monitoring system 10 having the above configuration will be described with reference to the flowchart shown in FIG. However, the PAC air conditioner 20 shown in FIG. 1 is assumed to use a three-phase AC power source.

In step S <b> 1 shown in FIG. 6, the wattmeter 12 measures the actual power consumption of the electrical equipment in the entire building.
In step S2, the air conditioning information receiving unit 71 of the power monitoring apparatus 11 shown in FIG. 2 receives the air conditioning information 23 of the PAC air conditioner 20 acquired by the communication adapter 15 shown in FIG. The air conditioning information 23 includes information such as the current value i of the outdoor unit 21 in the PAC air conditioner 20, the suction temperature and the blowout temperature of the indoor units 22a to 22n, and the set value of the air volume.

Next, in step S3, the current value i included in the received air conditioning information 23 and the rated voltage value v of the outdoor unit 21 stored in advance in a storage means (not shown) by the air conditioning power estimation unit 75 are obtained. It is used, and the estimation of the power consumption of the PAC air conditioner 20 is performed by calculating (√3) × i × v × cos θ.
In step S4, the estimated power consumption is output to the power ratio calculation unit 79 as the air conditioning system estimated power consumption P1.

  Next, in step S5, the entrance / exit information receiving unit 72 receives the entrance / exit information 33 from the entrance / exit management system 30 shown in FIG. The entrance / exit information 33 includes the ID number “for example, 888” read when a person puts the card in the entrance / exit of the room at the entrance / exit of each room of the building and the ID number “ 888 "is associated with the room entry information or the room exit information.

  Furthermore, in step S6, the illumination information receiving unit 73 receives the illumination information 43 from the illumination control system 40 shown in FIG. The lighting information 43 includes on / off information for each lighting fixture when the lighting fixtures 42a to 42n are turned on / off.

Next, in step S <b> 7, the illumination power estimation unit 76 estimates the total power consumption of the lighting fixtures 42 a to 42 n that are turned on. This estimation is executed in the subroutine processing shown in FIG. However, which subroutine processing is performed by the illumination power estimation unit 76 is arbitrarily set by a person in the power monitoring apparatus 11 by setting means (not shown).
FIG. 7 is a flowchart for explaining the operation of performing the first estimation of the illumination system power consumption by the illumination power estimation unit 76.
In step S <b> 21 shown in FIG. 7, the registration ID number 77 a “888” corresponding to the ID number “888” of the entry / exit information 33 received in step S <b> 5 is acquired from the database unit 77 by the illumination power estimation unit 76. .

Next, in step S22, the illumination power estimation unit 76 acquires the seat coordinate information 77b indicating the seat position “x2y5” of the person associated with the acquisition registration ID number 77a “888” from the database unit 77, and the seat The position “x2y5” is recognized.
Furthermore, in step S23, the illumination coordinate information indicating the position “x2y5L” of the lighting fixture (for example, the lighting fixture 42a shown in FIG. 1) associated with the recognized seat position “x2y5” by the lighting power estimation unit 76. 77c is acquired from the database unit 77, and the illumination position “x2y5L” is recognized.

  Next, in step S24, the illumination power estimation unit 76 determines the illumination group (for example, the illumination fixtures 42a to 42n) “G1” of the recognized illumination position “x2y5L” and the number n of illumination fixtures of the illumination group “G1”. Illumination group information 77d shown is acquired. Thereby, the lighting group “G1” and the number of lighting fixtures n thereof are recognized.

  Next, in step S <b> 25, the illumination power estimation unit 76 determines whether the acquired illumination fixtures 42 a to 42 n of the illumination group “G1” are turned on or off. This determination is determined to be on if the ID number “888” that is the basis for acquiring the lighting group “G1” is when entering the room, and off if it is when leaving the room.

  When it is determined that the lighting is on, in step S26, the lighting power estimation unit 76 acquires lighting power consumption information 77e indicating the power consumption p per lighting fixture from the database unit 77, and the lighting of the lighting group “G1”. The number n of appliances is multiplied (n × p) by the power consumption p. Thereby, the power consumption of the lighting illumination group “G1” is obtained.

Next, in step S27, the lighting power estimation unit 76 adds the power consumption of the lighting lighting group “G1” to the lighting system estimated power consumption of the entire building that has been obtained before, and this addition result is the building power. It is estimated that the power consumption of the entire lighting system.
On the other hand, when it is determined that the light is turned off in step S25, in step S28, the power consumption of the turned-off lighting group “G1” is obtained in the same manner as in step S26. Subtracted from power consumption. This subtraction result is estimated as the power consumption of the lighting system of the entire building.

Next, the second estimation of the illumination system power consumption by the illumination power estimation unit 76 is performed as in the subroutine processing of FIG.
In other words, in step S31 shown in FIG. 8, the lighting power estimation unit 76 uses the lighting information 42 received by the lighting information receiving unit 73 to turn on / off information for each lighting device from the lighting information 43 for each lighting device 42a to 42n. It is determined whether or not there is. As a result, when it is determined that there is no (No), this subroutine processing is terminated. On the other hand, if it is determined that there is (Yes), the number n of lighting fixtures 42a to 42n is obtained by the illumination power estimation unit 76 in step S32.

Thereafter, in step S33, the illumination power estimation unit 76 obtains the illumination power consumption information 77e from the database unit 77, multiplies the number of lighting n by the power consumption p of one lighting (n × p), and the number of lighting n Power consumption is required. This is an estimated value of the total power consumption of the lighting fixtures 42a to 42n in the lit state.
The power consumption of the illumination system estimated by the processing shown in FIG. 7 or FIG. 8 is output to the power ratio calculation unit 79 as the illumination system estimated power consumption P2 in step S8 shown in FIG.

  Next, in step S <b> 9, the PC information receiving unit 74 receives the PC information 53 from the PC information acquisition system 50 (see FIG. 1) via the network line 14. The PC information 53 includes ON / OFF information and operation rate information of each of the PCs 51a to 51n.

  After receiving the PC information 53, the outlet power estimation unit 78 estimates the total power consumption of the outlet system using the PC information 53 in step S10. This estimation is executed in the subroutine processing shown in FIG. 9 or FIG. However, the power monitoring device 11 arbitrarily sets which subroutine processing is to be performed by the outlet power estimation unit 78. FIG. 9 is a flowchart for explaining the operation of performing the first estimation of the outlet system power consumption by the outlet power estimating unit 78.

  In step S <b> 41 shown in FIG. 9, the outlet power estimation unit 78 determines from the PC on / off information of each of the PCs 51 a to 51 n in the PC information 53 whether there is an on-state PC (on-PC). As a result, when it is determined that there is no (No), this subroutine processing is terminated. On the other hand, if it is determined that there is (Yes), in step S42, the outlet power estimation unit 78 determines the number m of PCs in the on state.

Next, in step S43, the outlet power estimation unit 78 acquires the PC power consumption information 77f indicating the power consumption pp per PC from the database unit 77. Thereby, the power consumption pp per PC is recognized.
Next, in step S44, the outlet power estimation unit 78 multiplies the number m of PCs in the on state by the power consumption pp of one PC (m × pp) to obtain the total power consumption of each on-PC, and this is the outlet consumption. An estimation of power is performed.

Next, the second estimation of the outlet system power consumption by the outlet power estimation unit 78 is performed as in the subroutine processing of FIG.
That is, in step S51 shown in FIG. 10, the outlet power estimation unit 78 determines whether there is an on-state PC from the PC on / off information in the PC information 53. As a result, when it is determined that there is no (No), this subroutine processing is terminated. On the other hand, if it is determined that there is (Yes), the number m of PCs in the on state is obtained in step S52.

  Next, in step S53, the outlet power estimation unit 78 acquires the PC power consumption information 77f from the database unit 77, thereby recognizing the power consumption pp per PC.

  Next, in step S54, the outlet power estimation unit 78 calculates the operating rate (for example, from the operating rate information of the corresponding PC included in the PC information 53 to the power consumption of each on-state PC (for example, 51a to 51n). 70%), and more appropriate power consumption (appropriate power consumption) is obtained. Further, in step S55, more appropriate power consumption of all the on-PCs 51a to 51n is added, and total power consumption of all the on-PCs 51a to 51n is obtained, and estimation that this is the outlet power consumption is performed.

Thus, in step S10 of FIG. 6, the power consumption of the outlet system is estimated as in the process shown in FIG. 9 or FIG. 10, and in step S11 shown in FIG. 6, the power ratio calculation unit 79 is used as the outlet system estimated power consumption P3. Is output.
Moreover, after the process of step S10, in step S12, it is judged by the judgment means by CPU101a of the power monitoring apparatus 11 whether it became the next measurement time. As a result, when the next measurement time is reached (Yes), the process returns to step S1 and the processes of steps S1 to S12 are repeated.

  On the other hand, after the air conditioning system estimated power consumption P1, the illumination system estimated power consumption P2, and the outlet system estimated power consumption P3 are output in steps S4, S8, and S11, in step S13, the power ratio calculation unit 79 performs P1. , P2 and P3 are required. Further, the power ratio calculation unit 79 calculates the power consumption ratios of various power systems of the air conditioning system, the illumination system, and the outlet system with respect to the total power consumption. For example, the power consumption ratio is calculated such that the ratio of P1 is 50%, the ratio of P2 is 30%, and the ratio of P3 is 20% with respect to the total power consumption of P1, P2, and P3. This ratio is output to the power conversion unit 80.

Next, in step S <b> 14, the power conversion unit 80 acquires the power consumption of the entire building measured by the wattmeter 12. Further, the acquired power consumption of the entire building is proportionally distributed at the power consumption ratios 50%, 30%, and 20% of each power system obtained in step S12, and the power consumption of each power system is obtained. For example, when the power consumption of the entire building is 1000 kW, the air-conditioning system power consumption is 1000 kW × 50% = 500 kW, the lighting system power consumption is 1000 kW × 30% = 300 kW, and the outlet system power consumption is 1000 kW × 20% = 200 kW. .
In step S15, the obtained power consumption of each power system is displayed on the central monitoring screen (not shown) of the building by the display unit 81 so that a person can recognize it.

<Effect of embodiment>
As described above, the power monitoring apparatus 11 according to the present embodiment uses the information on the operating status of the PAC air conditioner 20 as the air conditioner installed in the facility to be managed to reduce the power consumption of the PAC air conditioner 20. Air-conditioning power estimation means to estimate, illumination power estimation means to estimate the power consumption of the lighting fixtures 42a to 42n using information on the operating status of each of the plurality of lighting fixtures 42a to 42n installed in the facility, The power consumption of the PCs 51a to 51n is obtained from the PCs 51a to 51n, which are computers installed in the facility, using the information on the operating status of the PCs 51a to 51n, and the outlet power consumption including at least the power consumption of the PCs 51a to 51n is estimated. Outlet power estimation means.

  However, the database unit 77, the air conditioning information reception unit 71, and the air conditioning power estimation unit 75 constitute an air conditioning power estimation unit, and the database unit 77, the illumination information reception unit 73, and the illumination power estimation unit 76 constitute an illumination power estimation unit, The database unit 77, the PC information receiving unit 74, and the outlet power estimation unit 78 constitute outlet power estimation means.

  Further, the power monitoring device 11 obtains the total power consumption by summing all of the estimated power consumption of the PAC air conditioner 20, the power consumption of the lighting fixtures 42a to 42n, and the outlet power consumption. A power ratio calculation unit 79 as a power ratio calculation means for calculating the power consumption ratio of each power system of the air conditioning equipment including the PAC air conditioner 20 for the power, the lighting fixtures 42a to 42n, and the outlet, and the wattmeter 12 installed in the facility Power conversion as a power conversion means for obtaining the power consumption of each power system by proportionally allocating the power consumption of the entire power consumption measurement object measured in step 1 by the power consumption ratio of each power system obtained by the power ratio calculation unit 79 The unit 80 is provided. However, power consumption measurement targets are general electrical equipment in buildings and other structures.

According to this configuration, even without installing a wattmeter for each power system such as an air conditioning system, an illumination system, and an outlet system, the operation and setting information of various electrical devices are received for each power system, The power consumption can be estimated for each power system. For this reason, since it is not necessary to install an expensive wattmeter for every various electric power system, the power consumption for every various electric power system can be estimated cheaply. Therefore, in the entire power consumption measurement target, the power consumption of various power systems can be grasped by the inexpensive power monitoring device 11, so that managers and the like can save energy saving measures such as stopping unnecessary electrical equipment at low cost. Can be done appropriately.
In addition, the power monitoring apparatus 11 is configured to further include a display unit 81 that displays the power consumption of various power systems obtained by the power conversion unit 80. According to this configuration, since the power consumption estimated for each power system can be displayed, a person can easily recognize the power consumption for each power system.

  In addition, the power monitoring system 10 of the present embodiment includes the power monitoring device 11 described above, a wattmeter 12 that measures the power consumption of the electrical equipment of the entire facility such as a building or a factory, and the air conditioning equipment of the entire facility during operation. A communication adapter (communication means) 15 that acquires a current value from a sensor that measures a current value and transmits the current value to the air conditioning power estimation means via the network line 14, and on / off for each of the lighting fixtures 42a to 42n in the entire facility The lighting control system 40 that acquires information and transmits it to the lighting power estimation means via the network line 14 and the on / off information of each PC in the entire facility are acquired and transmitted to the outlet power estimation means via the network line 14 And a PC information acquisition system 50.

  Further, in the power monitoring system 10, in the power monitoring apparatus 11, the air conditioning power estimation means estimates the power consumption of the PAC air conditioner 20 using the current value received from the communication adapter 15, and the illumination power estimation means The on / off information for each of the lighting fixtures 42a to 42n received from the control system 40 is used to estimate the power consumption for the number of lighting fixtures 42a to 42n, and the outlet power estimation means is at least a PC information acquisition system 50. The outlet power consumption is estimated using the on / off information of the PCs 51a to 51n received from the PC. Furthermore, the power ratio calculation unit 79 obtains the power consumption ratio of each power system using the estimated power consumption of the air conditioning equipment, the power consumption of the lighting fixtures 42a to 42n and the power consumption of the outlets, and converts the power The unit 80 receives the power consumption of the electrical equipment measured by the wattmeter 12 via the network line 14, and obtains the power consumption of each power system by proportionally distributing the received power consumption by the power consumption ratio. did.

  According to this configuration, the electric power monitoring device 11 can be used to install various electric devices for each electric power system without installing a wattmeter for each electric power system such as an air conditioning system, an illumination system, and an outlet system in the electrical equipment of the facility. The power consumption can be estimated for each of various power systems by receiving operation, setting information, and the like. For this reason, there is no need to install expensive wattmeters for each power system, so managers etc. can take energy-saving measures such as stopping unnecessary electrical equipment while estimating power consumption for each power system at a low cost. Can be done appropriately. For example, the operating state can be compared with the current climate based on the power consumption of the air conditioning system, and energy saving can be achieved by stopping the unnecessary air conditioning system such as the PAC air conditioner 20 when operating more than necessary.

The network line 14 as a communication line is a wireless LAN line.
According to this configuration, the power monitoring device 11 is wirelessly connected to the equipment including communication functions such as the communication adapter 15, the lighting control system 40, and the PC information acquisition system 50 related to various power systems of the facility. Compared to, the equipment cost can be reduced.

  Also, it has a card reader 31 that is installed at the entrance of each room provided in the facility and reads the ID number from a card that stores the ID number as unique information, and to each room read by the card reader 31 It further includes an entrance / exit management system (entrance / exit management means) 30 for transmitting an ID number with information on entering / exiting a person to the illumination power estimation means via the network line 14. Then, the illumination power estimating means recognizes the seat position corresponding to the ID number received from the entrance / exit management system 30, and the predetermined number of lighting fixtures 42a to 42n previously associated with the seat position includes the ID number. When the room entry information is attached to the lighting fixtures 42a to 42n, the lighting power is calculated by multiplying the number of lightings by the power consumption per lighting fixture 42a to 42n. It adds to the power consumption of the lighting fixtures 42a-42n of the whole facility calculated | required before this, and estimates this addition result as the power consumption of the lighting fixtures 42a-42n, and uses this estimation and said on / off information. It was set as the structure which performs any estimation process with the estimation of the power consumption of the lighting fixtures 42a-42n which were. In the case of this configuration, the illumination power estimating means is further provided with an entrance / exit information receiving unit 72.

  According to this configuration, the illumination power estimation means estimates the power consumption of the lighting fixtures 42a to 42n based on the ID number to which the person enters or exits each room read by the card reader 31 in the facility. can do.

  Further, the lighting power estimation means determines that the ID number has exit information attached, and determines that the lighting is turned off, and multiplies the number of lights turned off by the power consumption per lighting fixture 42a to 42n. The power consumption is obtained, and this power consumption is subtracted from the power consumption of the lighting fixtures 42a to 42n of the entire facility previously obtained, and the subtraction result is estimated as the power consumption of the lighting fixtures 42a to 42n. And an estimation process of estimating the power consumption of the lighting fixtures 42a to 42n using the on / off information.

  According to this configuration, the illumination power estimation unit can estimate more appropriate power consumption by subtracting the extinguished power consumption from the overall illumination system power consumption even when the lighting fixtures 42a to 42n are extinguished. .

Further, the PC information acquisition system 50 acquires the operation rate information of each of the PCs 51a to 51n in addition to the on / off information of each of the PCs 51a to 51n, associates both, and outputs them to the outlet power estimation unit. The outlet power estimation means obtains the number of on-boards of the PCs 51a to 51n from the on / off information of each of the PCs 51a to 51n received from the PC information acquisition system 50, and calculates the power consumption and the operating rate per PC to the on-number. The power consumption is estimated by multiplying.
According to this configuration, since the power consumption of each of the PCs 51a to 51n is estimated in consideration of the operation rate of each of the PCs 51a to 51n, the power consumption can be estimated more accurately.

<Modification 1 of Embodiment>
The total power consumption of the air conditioning system estimated power consumption P1, the illumination system estimated power consumption P2, and the outlet system estimated power consumption P3 estimated as described above is measured by the power meter 12 in the power ratio calculation unit 79 shown in FIG. The power consumption obtained by this subtraction is estimated as the power consumption of the other system 60 (referred to as P4). Thereafter, the power ratio calculation unit 79 obtains the ratio of each power consumption P1, P2, P3 and P4 to the power consumption of the entire building. For example, the ratio of P1 is 40%, the ratio of P2 is 30%, the ratio of P3 is 10%, and the ratio of P4 is 20%.

  Next, the electric power conversion part 80 carries out proportional distribution of the electric power consumption of the whole building measured with the wattmeter 12 in the ratio of said P1-P4, and calculates | requires the electric power consumption of each electric power grid | system. For example, when the power consumption of the entire building is 1000 kW, the air conditioning system power consumption is 1000 kW × 40% = 400 kW, the lighting system power consumption is 1000 kW × 30% = 300 kW, the outlet system power consumption is 1000 kW × 10% = 100 kW, and other systems The system power consumption is calculated as 1000 kW × 20% = 200 kW.

The obtained power consumption of each power system is displayed on the central monitoring screen (not shown) of the building by the display unit 81 so that a person can recognize it.
In this way, if the power consumption of the other system 60 is also estimated, the power consumption of the entire building can be classified and displayed more accurately in various power systems.

<Modification 2 of Embodiment>
A power meter may be provided for each floor of the building, and the power monitoring system 10 shown in FIG. 1 may be constructed for each floor.
In this case, a power meter 12, a communication adapter 15, an entrance / exit management system 30, a lighting control system 40, and a PC for measuring the power consumption of the electrical equipment for each floor in a multi-storey building or the like. And an information acquisition system 50.

  In the power monitoring apparatus 11, the air conditioning power estimation unit estimates the power consumption of the PAC air conditioner 20 for each floor using the current value received from the communication adapter 15 for each floor. The lighting power estimation means estimates the power consumption for the number of lighting fixtures 42a to 42n for each floor using the on / off information for each lighting fixture received from the lighting control system 40 for each floor. The outlet power estimation means estimates the outlet power consumption for each floor using the on / off information of the PCs 51a to 51n received from the PC information acquisition system 50 for each floor.

  Furthermore, the power ratio calculation unit 79 uses each of the power consumption of the PAC air conditioner 20 estimated for each floor, the power consumption for the number of lighting fixtures 42a to 42n, and the power consumption for each outlet for each floor. Obtain the power consumption ratio of the grid. Furthermore, the power conversion unit 80 receives the power consumption of the electrical equipment for each floor measured by the wattmeter 12 for each floor via the network line 14, and uses the received power consumption for each floor for each floor. The power consumption of each power system is obtained for each floor by proportionally allocating with the power ratio. And it is comprised so that the display part 81 may display the power consumption of various electric power systems for every floor.

  According to this structure, it becomes possible to see the power consumption of various electric power systems for every floor with a central monitoring board. Therefore, the operation stop setting of various electric facilities can be performed in more detail, and more effective energy saving can be achieved.

<Modification 3 of embodiment>
A power meter may be provided for each tenant of the building, and the power monitoring system 10 may be constructed for each tenant. In this case, it becomes possible to see the power consumption of various power systems for each tenant on the central monitoring panel. Therefore, it is possible to set the operation stop of various electric facilities for each tenant to achieve more effective energy saving.

  In addition, this invention is not limited to above-described embodiment, Various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Further, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function is stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, an SD (Secure Digital memory) card, a DVD ( Digital Versatile Disc) can be placed on a recording medium.
Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 10 Power monitoring system 11 Power monitoring apparatus 12 Wattmeter 14 Network line (communication line)
15 Communication adapter (communication means)
20 PAC air conditioner 21 outdoor unit 22a-22n indoor unit 23 air conditioning information 30 entrance / exit management system (entrance / exit management means)
31 Card reader 33 Entrance / exit information 40 Lighting control system (lighting control means)
42a-42n Lighting fixture 43 Lighting information 50 PC information acquisition system (PC information acquisition means)
51a-51n PC
53 PC information 60 Other system 71 Air conditioning information receiving unit (air conditioning power estimation means)
72 Entrance / exit information receiver (lighting power estimation means)
73 Illumination information receiver (illumination power estimation means)
74 PC information receiver (outlet power estimation means)
75 Air conditioning power estimation unit (air conditioning power estimation means)
76 Illumination power estimation unit (illumination power estimation means)
77 Database section (air conditioning power estimation means) (lighting power estimation means) (outlet power estimation means)
78 Outlet power estimation unit (outlet power estimation means)
79 Power ratio calculation unit (power ratio calculation means)
80 Electric power conversion part (electric power conversion means)
81 Display section (display means)
77a Registration ID number 77b Seat coordinate information 77c Lighting coordinate information 77d Lighting group information 77e Lighting power consumption information 77f PC power consumption information

Claims (8)

Air-conditioning power estimation means for estimating the power consumption of the air-conditioning equipment using information on the operating status of the air-conditioning equipment installed in the facility to be managed;
Illumination power estimation means for estimating the power consumption of the luminaire using information on the operating status of each of the plurality of luminaires installed in the facility,
Outlet power estimation means for estimating outlet power consumption, including at least the power consumption of a computer installed in the facility;
The estimated power consumption of the air conditioner, the power consumption of the lighting fixture, and the power consumption of the outlet are calculated to obtain the total power consumption, and the power systems of the air conditioning appliance, the lighting fixture, and the outlet for the total power consumption. A power ratio calculation means for obtaining a power consumption ratio of
The power consumption of each power system is obtained by proportionally distributing the power consumption of the entire facility measured by the power meter installed in the facility by the power consumption ratio of each power system obtained by the power ratio calculation means. And a power conversion means. The power monitoring device according to claim 1,
A power monitoring apparatus further comprising display means for displaying power consumption of each power system determined by the power conversion means. The power monitoring device according to claim 1 or 2,
A wattmeter that measures the power consumption of the electrical equipment of the entire facility;
Communication means for acquiring information on the operating state of the air conditioning equipment of the entire facility and transmitting the information to the air conditioning power estimation means via the communication line;
Lighting control means for acquiring information on the operating state of each lighting fixture of the entire facility and transmitting the information to the lighting power estimation means via the communication line;
PC information acquisition means for acquiring at least computer operating state information of the entire facility and transmitting the information to the outlet power estimation means via the communication line,
In the power monitoring device,
The air conditioning power estimation means estimates the power consumption of the air conditioning equipment using information on the operating state of the air conditioning equipment received from the communication means,
The lighting power estimation means estimates the power consumption of the lighting equipment using information on the operating state of each lighting equipment received from the lighting control means,
The outlet power estimation means estimates the outlet power consumption using at least information on the operating state of the computer received from the PC information acquisition means,
The power ratio calculation means obtains a power consumption ratio of each power system using the estimated power consumption of the air conditioning equipment, power consumption of the lighting fixture, and power consumption of the outlet,
The power conversion means receives the power consumption of the entire facility measured by the power meter via a communication line, and proportionally distributes the received power consumption by the power consumption ratio to calculate the power consumption of each power system. A power monitoring system characterized by demanding. The power monitoring system according to claim 3,
If the facility is multi-storey, for each floor on each floor,
A wattmeter that measures the power consumption of the electrical equipment on the floor,
Communication means for acquiring information on the operating state of the air conditioning equipment on the floor and transmitting the information to the air conditioning power estimation means via the communication line;
Lighting control means for acquiring information on the operating state of each lighting fixture on the floor and transmitting the information to the lighting power estimation means via the communication line;
PC information acquisition means for acquiring information on the operating state of at least the computer on the floor and transmitting the information to the outlet power estimation means via the communication line,
In the power monitoring device,
The air conditioning power estimation means estimates the power consumption of the air conditioning equipment for each floor using information on the operating state of the air conditioning equipment received from the communication means for each floor,
The lighting power estimation means estimates the power consumption of the lighting equipment for each floor using information on the operating state of each lighting equipment received from the lighting control means for each floor,
The outlet power estimation means estimates the outlet power consumption for each floor using at least information on the operating state of the computer received from the PC information acquisition means for each floor,
The power ratio calculation means calculates the total power consumption of the air conditioner estimated for each floor, the power consumption of the lighting fixture, and the power consumption of the outlet for each floor, and for each floor, Find the power consumption ratio
The power conversion means receives the power consumption of the electrical equipment for each floor measured by the power meter for each floor via a communication line, and the received power consumption for each floor is the power consumption ratio for each floor. The power monitoring system is characterized in that the power consumption of each power system is obtained for each floor by proportionally distributing the power. In the power monitoring system according to claim 3 or 4,
The power monitoring system, wherein the communication line is a wireless LAN line. In the power monitoring system according to claim 3 or 4,
It has a card reader that is installed at the entrance of each room provided in the facility and reads the unique information from a card that stores the unique information, and information on the person entering or leaving the room read by the card reader An entrance / exit management means for transmitting the attached unique information to the illumination power estimation means via the communication line,
The illumination power estimation means recognizes a seat position corresponding to the unique information received from the entrance / exit management means, and a predetermined number of lighting fixtures previously associated with the seat position includes the entry information in the unique information. If it is attached, it is judged to be lit, and the number of lights lit is multiplied by the power consumption per lighting fixture to determine the power consumption of the lighting fixture. Is added to the power consumption of the lighting fixture, and the addition result is estimated as the power consumption of the lighting fixture, and either of this estimation and the estimation processing of the power consumption of the lighting fixture using the on / off information is performed. A power monitoring system characterized by performing. The power monitoring system according to claim 6,
The lighting power estimation means determines that the lighting is turned off when leaving information is attached to the specific information, and multiplies the number of lights turned off by the power consumption per lighting fixture to determine the power consumption of the lighting fixtures turned off. This power consumption is subtracted from the power consumption of the lighting fixtures for the entire facility that has been obtained before, and this subtraction result is estimated as the power consumption of the lighting fixtures, and this estimation and the on / off information are used. A power monitoring system that performs any estimation process of estimating the power consumption of a lighting fixture. In the power monitoring system according to claim 3 or 4,
The PC information acquisition means acquires on / off information and load factor information of the computer as information on the operating state of the computer, and outputs the acquisition information to the outlet power estimation means.
The outlet power estimation means obtains the number of PCs turned on from the computer on / off information received by the PC information acquisition means, and multiplies the number of ons by the power consumption per PC and the load factor. A power monitoring system characterized in that the power consumption of the outlet is estimated including a result of the multiplication.

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