JP2015002577A - Power management device and power management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform appropriate warning or automatic control of appropriate load equipment when power consumption exceeds a threshold value.SOLUTION: A power management device 14 is configured to perform power management in the case where a plurality of persons in charge performs a plurality of jobs while exchanging. The power management device 14 comprises: an acquisition part 16 for acquiring information about the person in charge for each time frame of each job; a storage part 19 for storing a power saving level for each person in charge; a monitor part 18 for monitoring power consumption in each job; and a control part 17 in which, when power consumption in any one of the plurality of jobs exceeds a threshold value, warning of different contents is raised in accordance with the power saving level for the person in charge at a present time point of the job, or load equipment being used for the job is automatically controlled with different contents.

Description

  The present invention relates to a power management apparatus and a power management method for performing power management when a plurality of persons in charge perform a plurality of work while changing.

  In recent years, EMS (Energy Management System) has been attracting attention due to the growing awareness of power and energy conservation, and has been used in various fields. For example, HEMS (Home EMS) for homes, SEMS (Store EMS) for commercial facilities, FEMS (Factory EMS) for factories, BEMS (Building EMS) for building management, and various EMS There are CEMS (Community EMS) to manage.

  The EMS manages the amount of power to be used by acquiring power consumption data in the area to be managed and controlling the load device based on the acquired data. For example, an invention is known in which an integrated power amount is calculated from acquired power consumption data and a load device or the like is controlled so that the integrated power amount falls within a target value (see Patent Document 1).

JP 2010-237119 A

  In order to keep the power consumption within the target value, monitor the power consumption of the load device in the management area, and if the power consumption exceeds the threshold, alert the person in charge to save power or load device There is a method of automatically controlling the power consumption to reduce power consumption.

  However, if a uniform warning is given regardless of who is in charge of the load device or if a uniform automatic control is performed on the load device, the efficiency may be reduced.

  Accordingly, an object of the present invention made in view of such points is a power management apparatus and a power management method capable of performing an appropriate warning or an appropriate automatic control of a load device when the power consumption exceeds a threshold value. Is to provide.

  In order to solve the above-described problem, a power management apparatus according to the present invention is a power management apparatus that performs power management when a plurality of persons in charge perform a plurality of works, and each time frame of each work An acquisition unit that acquires information on a person in charge, a storage unit that stores a power saving level of each person in charge, a monitoring unit that monitors power consumption in each operation, and a power consumption threshold value in any of the plurality of operations A control unit that issues a warning with different contents or automatically controls a load device used for the work with different contents depending on the power saving level of the person in charge at the current time of the work. Prepare.

  In the power management apparatus according to the present invention, the storage unit stores the power saving level of each person in charge for each operation, and the control unit consumes power in any of the plurality of operations. When the threshold value is exceeded and warning or automatic control is performed, it is preferable to perform warning or automatic control corresponding to the power saving level for the current work of the person in charge.

  Also, in the power management apparatus according to the present invention, the control unit issues a warning instructing a specific action when the power saving level of the person in charge is low compared to when the power saving level is high, or It is preferable to perform more detailed automatic control of the load equipment used for the work.

  In the power management apparatus according to the present invention, it is preferable that the acquisition unit acquires information on a person in charge at a predetermined time of each operation based on a process table input in advance.

  In the power management apparatus according to the present invention, it is preferable that the control unit updates power saving level data in the storage unit in accordance with work results of each person in charge.

  Further, in the power management apparatus according to the present invention, the control unit may set the magnitude of the threshold value to a different magnitude in each work according to the power saving level of a person in charge of the work. preferable.

  In the power management apparatus according to the present invention, it is preferable that the control unit sets the threshold value higher when the power saving level is higher than when the power saving level is low.

  In order to solve the above problems, a power management method according to the present invention is a power management method in a case where a plurality of persons in charge perform a plurality of work, and the person in charge for each time frame of each work The step of acquiring the information, the step of storing the power saving level of each person in charge, the step of monitoring the power consumption in each operation, and the case where the power consumption exceeds a threshold in any of the plurality of operations And a step of giving a warning with different contents according to the power-saving level of the person in charge at the present time of the work or automatically controlling a load device used for the work with a different content.

  ADVANTAGE OF THE INVENTION According to this invention, when power consumption exceeds a threshold value, an appropriate warning or the automatic control of an appropriate load apparatus can be performed.

It is a figure which shows schematic structure of the power management system containing the power management apparatus which concerns on one Embodiment of this invention. It is a functional block diagram of the apparatus which exists in LAN in FIG. It is an example of the process chart which concerns on one Embodiment of this invention. It is an example of the power-saving level table | surface which concerns on one Embodiment of this invention. In the process chart of FIG. 3, it is the figure which showed the time slot | zone when the usage-amount of electric power is tight. It is a flowchart which shows operation | movement of the power management apparatus which concerns on one Embodiment of this invention.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the present embodiment, an example will be described in which a plurality of operations are performed by a plurality of persons in charge at a factory.

  First, a power management system having a power management apparatus according to an embodiment of the present invention will be described. FIG. 1 is a diagram showing a schematic configuration of a power management system including a power management apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the power management system 10 includes the Internet 11, a plurality of power control devices 12, a plurality of terminals 13, and a power management device 14.

  The Internet 11 connects a plurality of power control devices 12, a plurality of terminals 13, and a power management device 14, and communicates data and signals such as control instructions. Note that a LAN (Local Area Network) 15 is constructed for each of a plurality of factories, for example, and each LAN 15 has at least one power control device 12 and a plurality of terminals 13. Note that the power control device 12 and the terminal 13 existing in the same LAN 15 can directly communicate with each other.

  The power control device 12 is, for example, an EMS gateway. The power control device 12 periodically transmits a measurement value such as power consumption of each load device detected by a sensor described later to the power management device 14. In addition, the power control device 12 acquires a control instruction for a load device existing in the same LAN 15 from the power management device 14 by polling. The power control device 12 controls load devices existing in the same LAN 15 based on the control instruction acquired from the power management device 14.

  At least one terminal 13 is installed for each unit to be monitored for power consumption, such as for each work area. For example, when the power consumption exceeds a threshold value in the work area in which the terminal 13 is installed, the terminal 13 receives an instruction from the power management device 14 and warns a person in charge in the work area.

  The terminal 13 has a display and can display a message received from the power management apparatus 14 to warn a person in charge in the work area. Further, the terminal 13 has a speaker, and can give a voice warning by playing a message received from the power management apparatus 14 or sounding a warning sound.

  The terminal 13 can display a process chart to be described later. By checking the process chart displayed on the terminal 13, the person in charge can grasp who is in charge for each time frame of each work. Moreover, the terminal 13 has an input part, and can receive the input of a process table beforehand from a person in charge or a manager. The terminal 13 transmits the accepted process chart to the power management apparatus 14, and the power management apparatus 14 stores the process chart in the storage unit 19.

  FIG. 3 shows an example of a process chart according to an embodiment of the present invention. In the example of the process chart shown in FIG. 3, there are six work types, “preparation”, “start-up”, “firing”, “polishing”, “assembly”, and “inspection”. The person in charge, A, B and C, is assigned.

  The process chart is a table showing a person in charge in a certain time frame of a certain work. In the example shown in FIG. 3, for example, the person in charge at 7 to 8 o'clock in the “preparation” operation is A, and the person in charge at 8 to 14 o'clock in firing is B. Here, for example, the time frame of “7 o'clock” in FIG. 3 indicates 7 to 8 o'clock. The same applies to other time frames.

  Returning to the description of FIG.

  The power management apparatus 14 is, for example, an EMS server. The power management apparatus 14 includes an acquisition unit 16, a control unit 17, a monitoring unit 18, and a storage unit 19.

  The acquisition unit 16 acquires information about who is in charge of each work time frame from the process chart. The acquisition unit 16 acquires a power saving level for each work type of each person in charge from a power saving level table described later.

  FIG. 4 shows an example of a power saving level table according to an embodiment of the present invention. In the example shown in FIG. 4, a small number indicates that the power saving level is high, and a large number indicates that the power saving level is low. When the power saving level is “1”, the power saving level is high. When the power saving level is “2”, the power saving level is medium. When the power saving level is “3”, the power saving level is low.

  For work with a high power saving level, the person in charge is familiar with the work, and understands what operation leads to power saving and the energy consumption characteristics of the load equipment used for the work. In addition, for a work with a low power saving level, the person in charge is unfamiliar with the work and does not understand much what action should be taken for power saving.

  For example, the person in charge A has a high power saving level for “polishing” but a low power saving level for “inspection”. The person in charge B has a high power saving level for “baking” but a low power saving level for “start-up” and “inspection”. The person in charge C has a high power saving level for “preparation” and “inspection” but a low power saving level for “assembly”.

  Returning to the description of FIG.

  When the control unit 17 determines that the power consumption exceeds a predetermined threshold in any of the plurality of tasks, the control unit 17 saves power of the person in charge at the current time of the task for the terminal 13 installed in the task area. Instruct to perform different warnings depending on the level. Alternatively, the control unit 17 automatically controls the load device 25 used in the work area with different contents according to the power saving level of the person in charge at the current time of the work.

  The control unit 17 can grasp who is in charge of a certain time frame of a certain work by referring to the process table, and can also determine the person in charge of the work by referring to the power saving level table. The power saving level can be grasped.

  When instructing to give a warning, the control unit 17 causes the terminal 13 to issue a warning instructing a specific action when the power saving level of the person in charge is low compared to when the power saving level of the person in charge is high. To instruct. In addition, when the load device 25 is automatically controlled, the control unit 17 performs more detailed automatic control when the power saving level of the person in charge is low than when the power saving level of the person in charge is high.

  The control unit 17 can set a threshold value of power consumption used as a determination criterion to be different depending on the person in charge when performing warning or automatic control. For example, the controller 17 sets the threshold value to a larger value for a person in charge with a high power saving level than for a person in charge with a low power saving level. Thereby, the person in charge with a high power-saving level can take power-saving action at his / her discretion based on the power-saving knowledge he / she is familiar with.

  The control unit 17 may assess the power saving level in each work of the person in charge according to the work result of the person in charge, and may update the power saving level data of the person in charge stored in the power saving level table. Further, the power saving level data may be updated by an administrator or the like assessing the power saving level and inputting it to the terminal 13.

  The monitoring unit 18 receives power consumption data for each work from the power control device 12 and monitors the power consumption for each work.

  The storage unit 19 stores power consumption data for each work received by the monitoring unit 18. The storage unit 19 stores a process chart and a power saving level chart.

  Next, the operation of the power control device 12 will be described. FIG. 2 is a functional block diagram of a device existing in an arbitrary LAN 15.

  Within an arbitrary LAN 15, there are a first sensor 21, a sensor management unit 22, a second sensor 23, a third sensor 24, a plurality of load devices 25, a power control device 12, and a plurality of terminals 13.

  The first sensor 21 is an arbitrary sensor such as a current sensor, a power sensor, a temperature sensor, a humidity sensor, or an illuminance sensor, and detects a measurement value related to the driving state of the load device 25 existing in the LAN 15.

  The sensor management unit 22 detects a measurement value from the first sensor 21. The sensor management unit 22 communicates with the power control device 12 by a standard protocol such as Sig2.0 (Smart Energy Profile 2.0) of ZigBee (registered trademark) and Echonet (registered trademark) or ECHONET Lite (registered trademark).

  The second sensor 23 is an arbitrary sensor such as a current sensor, a power sensor, a temperature sensor, a humidity sensor, or an illuminance sensor, and detects a measurement value related to the driving state of the load device 25 existing in the LAN 15. Further, unlike the first sensor 21, the second sensor 23 communicates with the power control apparatus 12 using a unique protocol.

  The third sensor 24 is an arbitrary sensor such as a current sensor, a power sensor, a temperature sensor, a humidity sensor, or an illuminance sensor, and detects a measurement value related to the driving state of the load device 25 existing in the LAN 15. Further, unlike the first sensor 21 and the second sensor 23, the third sensor 24 communicates directly with the power control apparatus 12 by a standard protocol such as SEP2.0 and Echonet (registered trademark) or ECHONET Lite. Do.

  The load device 25 is a device driven by electric power, such as an air conditioner, a lighting device, and a work device. The load device 25 communicates with the power control apparatus 12 by a standard protocol such as SEP2.0 and Echonet (registered trademark) or ECHONET Lite.

  As described above, the power control device 12 can communicate with the sensor management unit 22, the second sensor 23, and the third sensor 24, and the first sensor 21, the second sensor 23, and the third sensor 24 can communicate with each other. The measured value is periodically transmitted to the power management apparatus 14 via the Internet 11. Further, as described above, the power control device 12 acquires a control instruction for the load device 25 existing in the same LAN 15 from the power management device 14 by polling, and controls the operation state of the load device 25 based on the control instruction. .

  FIG. 5 is a diagram showing a case where power is tight in the time frame 51 (10:00 to 11:00) and the time frame 52 (13:00 to 14:00) in the process chart shown in FIG. Hereinafter, a specific example of the operation of the power management apparatus 14 according to the embodiment of the present invention in the case of the example illustrated in FIG. 5 will be described.

  In the example shown in FIG. 5, in the time frame 51 (10 o'clock to 11 o'clock), the power consumption exceeds the threshold and the power is tight. The acquisition unit 16 acquires from the process chart that the person in charge A is performing “polishing” work in this time frame 51. Further, the acquisition unit 16 acquires from the power saving level table that the power saving level for the “polishing” work of the person in charge A is “1”. Since the power saving level for the “polishing” work of the person in charge A is high, the control unit 17 gives a rough warning to the terminal 13 such as “Please take energy saving action because power is tight”. Instruct and leave specific actions to the discretion of the person in charge A.

  Further, the acquisition unit 16 acquires from the process chart that the person in charge C is performing the “assembly” operation in the time frame 51. Further, the acquisition unit 16 acquires from the power saving level table that the power saving level for the “assembly” work of the person in charge C is “3”. Since the power saving level for the “assembly” operation of the person in charge C is low, the control unit 17 confirms that the assembly device X is not left attached to the terminal 13, and “ Instruct the person in charge C to perform a specific power saving action by instructing a warning with a more detailed message such as “Please check if the door remains open”.

  In the example shown in FIG. 5, even in the time frame 52 (13:00 to 14:00), the power consumption exceeds the threshold and the power is tight. The acquisition unit 16 acquires from the process chart that the person in charge A is performing the “inspection” work in this time frame 52. Further, the acquisition unit 16 acquires from the power saving level table that the power saving level for the “inspection” work of the person in charge A is “3”. Since the power saving level for the “inspection” work of the person in charge A is low, the control unit 17 confirms whether or not the inspection device Y is left on the terminal 13, and “ Instruct them to give a warning that they can drop into a specific action like “Please check if the door is left open”. In this way, even the same person in charge A receives a warning with a rough instruction for work with a high power saving level, and receives a warning with detailed instructions for work with a low power saving level.

  The operation of the power management apparatus according to the embodiment of the present invention will be described with reference to the flowchart shown in FIG.

  The acquisition unit 16 acquires information about who is in charge of each work time frame from the process chart (step S101).

  The acquisition unit 16 acquires a power saving level for each work type of each person in charge from the power saving level table (step S102).

  The control unit 17 sets a power consumption threshold value used as a determination criterion when performing warning or automatic control according to the power saving level of the person in charge (step S103).

  The monitoring unit 18 monitors power consumption (step S104).

  The control unit 17 determines whether or not the power consumption exceeds the threshold set in step S103 (step S105). The control part 17 complete | finishes operation | movement, when it determines with No in step S105.

  When it determines with Yes in step S105, the control part 17 instruct | indicates to perform the warning according to the power-saving level of a person in charge with respect to the terminal 13 installed in the said work area. Or the control part 17 performs the automatic control according to the power-saving level of a person in charge with respect to the load apparatus 25 currently used in the said work area (step S106).

  As described above, according to the present embodiment, the power management device 14 stores the power saving level of each person in charge, and when the power consumption exceeds a threshold value in any work, Depending on the power saving level, a warning with a different content is performed, or a load device used for the work is automatically controlled with a different content, so that an appropriate warning according to the power saving level of the person in charge, or Appropriate load equipment can be automatically controlled. As a result, power saving can be realized without giving stress to the person in charge.

  In addition, since the power management apparatus 14 stores the power saving level of each person in charge for each work, more appropriate warning or automatic control can be performed.

  In addition, when the power management device 14 has a low power saving level, the power management device 14 gives a warning instructing a specific action or more detailed information about the load device used in the work than when the power saving level is high. By performing automatic control, a person in charge with a low power saving level can perform a specific power saving action based on a detailed instruction.

  Moreover, the power management apparatus 14 acquires information on a person in charge at a predetermined time of each work based on the process table input in advance, so that the power management apparatus 14 can efficiently perform the predetermined process of each work. The person in charge in time can be grasped.

  In addition, the power management device 14 updates the power saving level data according to the work performance of each person in charge, thereby raising the person's awareness about power saving, and combining with the qualification system etc. Can be improved.

  In addition, the power management device 14 sets the threshold value for performing warning or automatic control to a different level according to the power saving level of the person in charge, so that the person in charge with a high power saving level can be based on the knowledge of power saving that is familiar. Can take power-saving action at their own discretion.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention.

  In the above-described embodiment, the case where a plurality of persons in charge are performed in a factory while performing a plurality of operations has been described as an example. However, this is only an example. For example, in a commercial facility, a plurality of areas The present application can be applied to a situation in which work can be managed in the process chart, such as when a plurality of persons in charge are in charge.

DESCRIPTION OF SYMBOLS 10 Power management system 11 Internet 12 Power control apparatus 13 Terminal 14 Power management apparatus 15 LAN
DESCRIPTION OF SYMBOLS 16 Acquisition part 17 Control part 18 Monitoring part 19 Memory | storage part 21 1st sensor 22 Sensor management part 23 2nd sensor 24 3rd sensor 25 Load apparatus

Claims (8)

A power management device that performs power management when a plurality of persons in charge perform a plurality of tasks,
An acquisition unit that acquires information of a person in charge for each time frame of each operation;
A storage unit for storing a power saving level of each person in charge;
A monitoring unit for monitoring power consumption in each of the operations;
When power consumption exceeds a threshold value in any of the plurality of tasks, a warning is given depending on the power-saving level of the person in charge at the current time of the task or the load used for the task A power management apparatus comprising a control unit that automatically controls devices with different contents. The power management apparatus according to claim 1,
The storage unit stores the power saving level of each person in charge for each work,
The control unit performs warning or automatic control according to the power saving level of the person in charge at the current time when the power consumption exceeds a threshold value in any of the plurality of tasks and warning or automatic control is performed. A power management apparatus characterized by that. The power management apparatus according to claim 1 or 2,
When the power saving level of the person in charge is low, the control unit issues a warning instructing a specific action as compared with the case where the power saving level is high, or the load device used for the work is more A power management apparatus that performs detailed automatic control. In the power management device according to any one of claims 1 to 3,
The power acquisition apparatus according to claim 1, wherein the acquisition unit acquires information on a person in charge at a predetermined time of each work based on a process table input in advance. In the power management device according to any one of claims 1 to 4,
The said control part updates the data of the power saving level in the said memory | storage part according to the work performance of each said person in charge, The power management apparatus characterized by the above-mentioned. In the power management device according to any one of claims 1 to 5,
The said control part sets the magnitude | size of the said threshold value in each said operation | work to a different magnitude | size according to the said power-saving level of the person in charge in charge of the said operation | work. The power management apparatus according to claim 6,
The control unit sets the threshold value higher when the power saving level is higher than when the power saving level is low. A power management method in the case where a plurality of persons in charge perform a plurality of work,
Obtaining information of a person in charge for each work time frame;
Storing the power saving level of each person in charge;
Monitoring power consumption in each of the operations;
When power consumption exceeds a threshold value in any of the plurality of tasks, a warning is given depending on the power-saving level of the person in charge at the current time of the task or the load used for the task And a method of automatically controlling devices with different contents.

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