JP5904000B2 - Equipment control equipment related to the production of goods - Google Patents

Description

  The present invention relates to a control device for equipment related to production of goods, and more particularly to a control device for controlling power consumption of the equipment.

  For example, Japanese Patent Application Laid-Open No. 2004-151830 (Patent Document 1) describes a control device (system) capable of optimizing the amount of energy demand for production facilities and non-production facilities necessary for product production. Yes. This system creates time-series data in which demand energy amounts are arranged, and corrects the product production plan so that peaks appearing in the time-series data are suppressed in consideration of constraint information including the upper limit value of the demand energy amount. . Then, a correlation is created between the weather information and the amount of energy consumption required for the operation of the thermal environment generation device of the non-production facility, and the production plan of the product is corrected based on the correlation. Thereby, the amount of demand energy of equipment can be optimized.

JP 2004-151830 A

  In the control device described in Patent Document 1, a correlation with weather information is created for non-production equipment, but a correlation with weather information is not created for production equipment. May be insufficient. In addition, in equipment, there is an apparatus that always requires constant power during operation. Since such electric power cannot be reduced unless the equipment itself is changed, it is very difficult for the control device described in Patent Document 1 to control the adjustment of the power consumption excluding the power consumption in the existing equipment. is there.

  The present invention has been made in view of such circumstances, and the peak power value of the power consumption does not exceed the target power value in consideration of weather change information with respect to the power consumption adjustable in the entire equipment. An object of the present invention is to provide a control device for equipment related to production of a product that can be easily controlled.

  (Claim 1) A control device for equipment related to production of an object according to the present invention corresponds to a meteorological information acquisition unit for acquiring information on meteorological change, and acquisition of the information on the meteorological change in the meteorological information acquisition unit. A power acquisition unit that acquires a pattern of power consumption that changes with time in equipment involved in the production of the product, information on the weather change acquired by the weather information acquisition unit, and a pattern of the power consumption acquired by the power acquisition unit An association data creation unit that creates association data by associating, a weather forecast input unit that inputs forecast information of the weather change, an association data created by the association data creation unit, and the weather that is input by the weather forecast input unit Based on the change prediction information, a planned power consumption creation unit that creates a planned power consumption pattern, and the planned power consumption parameter created by the planned power consumption creation unit. Are grouped into a pattern of steady power as power consumption in the operation ready state of the equipment and a pattern of dynamic power as power consumption obtained by subtracting the steady power from power consumption during operation of the equipment. A grouping processing unit, and a rearrangement processing unit that rearranges at least the dynamic power patterns grouped by the grouping processing unit.

  (Claim 2) The weather forecast input unit inputs forecast information of the weather change of the day, and the reassignment processing unit is based on the forecast information of the weather change of the day input by the weather forecast input unit. The rearranged dynamic power pattern may be rearranged again.

  (Claim 3) The grouping processing unit divides the steady power pattern into a standby power pattern and a pattern other than the standby power pattern as power consumption when the equipment is powered on. You may make it do.

  (Claim 4) The control device includes an equipment extraction unit that extracts equipment that is not affected by the weather change among the equipment, and the reassignment processing unit extracts the atmosphere of the equipment extracted by the equipment extraction unit. The pattern of the dynamic power of the equipment may be rearranged by adjusting the air conditioning.

  (Claim 5) The rearrangement processing unit may rearrange the dynamic power pattern by increasing time in the dynamic power pattern.

  (Claim 6) The rearrangement processing unit may rearrange the dynamic power pattern by increasing power consumption in the dynamic power pattern.

  (Claim 7) Further, the facility includes a power storage device capable of storing electricity, and the control device does not exceed the target power value when the rearranged dynamic power pattern exceeds the target power value. You may make it provide the electrical storage control part using the electric power stored in the said electrical storage apparatus.

  (Claim 1) Thereby, dynamic power can be selected as adjustable power consumption among the planned power consumption of the entire equipment associated with the forecast information of the weather change. Then, by adjusting the dynamic power, it is possible to easily control the peak power value of the planned power consumption so as not to exceed the target power value.

  (Claim 2) As a result, the probability of weather change increases, so that the accuracy of the leveling process of the pattern of the dynamic power can be improved.

  (Claim 3) Thereby, for example, by making the facility capable of energy saving of stationary power excluding standby power, the peak power value of power consumption can be controlled more easily so as not to exceed the target power value. .

  (Claim 4) As a result, equipment affected by weather changes can be operated in a normal state. For example, when the product is a workpiece, the dimensions of the workpiece can be maintained with high accuracy. it can.

  (Claim 5) Thereby, the peak power value of the planned power consumption exceeding the target power value can be adjusted to the target power value or less. At this time, the power consumption is adjusted so as not to exceed the cycle time of the equipment due to the increase in time.

  (Claim 6) Thereby, the peak power value of the planned power consumption exceeding the target power value can be adjusted to the target power value or less without increasing the time. In this case, since the power increase is accompanied, the power consumption of only the bottleneck process is adjusted.

  (Claim 7) As a result, the facility can be operated in a normal state, so that the power cost can be reduced without reducing the productivity.

It is a block diagram which shows a manufacturing line. Embodiment: It is a functional block diagram of a power consumption control apparatus. Embodiment: Flow chart of a power control program. It is a figure which shows the time-dependent change of the power consumption of the machine tool and workpiece conveyance robot which comprise a manufacturing line. It is a figure which shows the time-dependent change of the power consumption of the air conditioner which comprises a manufacturing line. It is a figure which shows the state which made the power consumption of FIG. 4A block. It is a figure which shows the state which made the power consumption of FIG. 4B block. It is a figure which shows the state which reblocked the power consumption of FIG. 5A. It is a figure which shows the state which reblocked the power consumption of FIG. 5B. It is a figure which shows the state which united the power consumption of FIG. 6A, and the power consumption of FIG. 6B. It is a figure which shows the state which rearranged the power consumption of FIG. It is a figure which shows the state which rearranged the power consumption of FIG. 7 with another method. It is a figure which shows the state which rearranged the power consumption of FIG. 7 by another method.

(1. Overview of equipment control equipment related to product production)
This control device is a device that can control the power consumption of equipment related to the production of goods, that is, equipment related to processes such as processing, transport, assembly, and inspection, and in particular, equipment that is affected by weather changes. In such a case, it is an apparatus that allows an operator to grasp the trend of power consumption of the facility and take measures. That is, the control device associates the accumulated weather change information with the power consumption pattern, and plans the power consumption pattern based on the association data and the forecast information of the weather change at the time of production. A planned power consumption pattern in which the peak power value of the power consumption does not exceed the target power value in the planned power consumption pattern is created and stored in advance, and work is performed by controlling the equipment according to the planned power consumption pattern. It is a device that can control power consumption intended by a person.

  Equipment related to the production of objects that can be controlled by the control device includes a plurality of manufacturing lines in one manufacturing factory including an air conditioner, a plurality of manufacturing devices in one manufacturing line including an air conditioner, and a manufacturing device including an air conditioner. And a plurality of constituent devices. Further, since it may not be possible to control the peak power value of the power consumption so as not to exceed the target power value depending on weather changes, the facility may include a power storage device.

(2. Structure of equipment related to product production)
As an example of equipment related to the production of goods, a manufacturing line composed of a plurality of manufacturing apparatuses and air conditioners will be described as an example, and will be described with reference to FIG. The production line 1 includes two machine tools 11 and 12 having the same configuration, two workpiece transfer robots 13 and 14 having the same configuration, two air conditioners 51 and 52, a power storage device 53, and a machine tool. 11, 12, work transfer robots 13 and 14, air conditioners 51 and 52, and control device 15 that controls the operation of power storage device 53. Here, the machine tool 11 and the workpiece transfer robot 13 are facilities that are affected by changes in the outside air temperature, that is, facilities that require high-precision processing and the like. Equipment to receive.

  In the production line 1, the first machine tool 11 performs the first machining of the workpiece in the temperature-controlled room 54 maintained at a constant temperature by the air conditioner 51, that is, a temperature at which high-precision machining is maintained. The workpiece for which the first machining has been completed by the transfer robot 13 is transferred from the first machine tool 11 to the second machine tool 12. Then, in the building maintained at a predetermined temperature by the air conditioner 52, that is, a temperature that does not hinder the work of the worker, the second machine tool 12 performs the second machining of the workpiece, and the second workpiece transfer robot 14 Then, a step of conveying the workpiece, which has been subjected to the second machining, from the second machine tool 11 to the outside of the line is performed. Moreover, although mentioned later for details, electric power is supplied from the electrical storage apparatus 53 to the machine tools 11 and 12 etc. as needed.

  The first and second machine tools 11 and 12 are, for example, general horizontal machining centers, and detailed description thereof is omitted. However, a bed 21, a column 22, a saddle 23, a rotary spindle 24, and a table 25 are omitted. And the turntable 26 and the like. The first and second machine tools 11 and 12 serve as drive shafts, three rectilinear axes (X, Y, Z axes) orthogonal to each other for moving the column 22, the saddle 23, and the table 25 with respect to the bed 21, and a turntable. This is a machine tool having a vertical rotation axis (B-axis) for rotating 26.

  The first and second workpiece transfer robots 13 and 14 are, for example, general arm type robots, and detailed description thereof is omitted, but the base 31, the swivel base 32, the first swivel arm 33, It comprises a two-turn arm 34, a hand 35 and the like. The first and second workpiece transfer robots 13 and 14 rotate the swivel base 32 around the vertical axis V with respect to the base 31, and rotate one end of the first swivel arm 33 around the first horizontal axis H1 with respect to the swivel base 32. One end of the second turning arm 34 is rotated about the second horizontal axis H2 with respect to the other end of the first turning arm 33, and the hand 35 is rotated about the arm axis K with respect to the other end of the second turning arm 34. It is a robot. The hand 35 includes a pair of claws 36 that open and close to hold and release the workpiece.

  The air conditioners 51 and 52 are, for example, general air conditioners. The power storage device 53 includes, for example, a solar battery, a wind power generator, a geothermal power generator, and the like, and a storage battery that stores electric power generated by them.

  The control device 15 controls a motor (not shown) attached to the rotary spindle 24 to rotate the tool, and controls each motor (not shown) attached to the column 22, the saddle 23, the table 25, and the turntable 26. The workpiece is processed by moving the workpiece and the tool relative to each other about the X-axis direction, the Z-axis direction, the Y-axis direction, and the B-axis. In addition, the unillustrated motor or the like attached to the swivel base 32, the first swivel arm 33, the second swivel arm 34, the hand 35, and the claw 36 is controlled to grip and transport the workpiece. Moreover, the compressor etc. which are not shown in figure of the air conditioners 51 and 52 are controlled, and the temperature of the atmosphere in the temperature-controlled room 54 or a building is controlled. In addition, the control device 15 includes a power consumption control device 16 that controls power consumption in the production line 1 and a display device 17 made of liquid crystal that can display a power consumption pattern that changes with time. However, the power consumption control device 16 is not limited to the one provided inside the control device 15 and can also be applied as an external device.

(3. Explanation of power consumption in the production line)
Next, power consumption in the first machine tool 11, the first work transfer robot 13, the second machine tool 12, the second work transfer robot 14, and the air conditioners 51 and 52 configuring the production line 1 will be described. Here, in general, the power consumption is the steady power as the power consumption when the equipment is ready for operation, that is, the state in which the operation can be started, and the power obtained by subtracting the steady power from the power consumption during the operation of the equipment. The power can be grouped into dynamic power. Further, the steady power is the standby power as the power consumption in the state where the power of the facility is on, that is, in the state where nothing is processed when the power is turned on, and the power consumption other than the standby power (hereinafter referred to as the steady power). Can be grouped into

  The steady power in the first and second machine tools 11 and 12 includes, for example, power when a coolant pump that supplies coolant liquid for cooling a tool or the like is turned on, and warm-up for maintaining the accuracy of the rotating spindle 24. For example, the electric power of the spindle motor during operation can be mentioned. Examples of the dynamic electric power in the first and second machine tools 11 and 12 include electric power of the motors of the column 22, the saddle 23, the rotary spindle 24, the table 25, and the turntable 26 during processing. The steady power in the first and second workpiece transfer robots 13 and 14 is, for example, turning necessary for maintaining the posture when the workpiece is kept waiting at the carry-in entrance of the first and second machine tools 11 and 12. For example, the power of the motor of the base 32, the first turning arm 33, the second turning arm 34, the hand 35, and the claw 36 can be used. Examples of the dynamic electric power in the first and second workpiece transfer robots 13 and 14 include electric power increased due to an increase in weight of the workpiece and an increase in inertia during the transfer of the workpiece.

  Examples of the steady power in the air conditioners 51 and 52 include power that operates when the temperature in the temperature-controlled room 54 or the building reaches a set temperature. Examples of the dynamic power in the air conditioners 51 and 52 include power that operates when there is a difference between the set temperature and the temperature of the atmosphere in the temperature-controlled room or the building.

(4. Configuration of power consumption control device)
Next, the power consumption control device 16 will be described with reference to the functional block diagram of FIG. The power consumption control device 16 includes a weather information acquisition unit 61, a power acquisition unit 41, an association data creation unit 62, a weather forecast input unit 63, a planned power consumption creation unit 64, a facility extraction unit 65, and a storage unit. 42, a grouping processing unit 43, a blocking processing unit 44, a display control unit 45, a reassignment processing unit 46, and a power storage control unit 66.

  The weather information acquisition unit 61 acquires weather information that changes over time. For example, the meteorological information acquisition unit 61 acquires a daily change in the outside air temperature for each type of workpiece in advance every day or every predetermined period and stores it in the storage unit 42. The weather information acquisition unit 61 can acquire weather information such as humidity and atmospheric pressure in addition to the outside temperature with various sensors. The weather information may be manually input to the weather information acquisition unit 61 by the operator. The power acquisition unit 41 corresponds to the acquisition of the weather change information in the weather information acquisition unit 61, and the first machine tool 11, the first workpiece transfer robot 13, the second machine tool 12, and the second machine tool constituting the production line 1. The power consumption pattern that changes with time in the two-work transfer robot 14 and the air conditioners 51 and 52 is acquired. For example, the power acquisition unit 41 preliminarily calculates the time-dependent change of the daily power consumption for each type of workpiece in correspondence with the time-dependent change of the daily outside temperature for each type of workpiece acquired by the weather information acquisition unit 61. Obtained and stored in the storage unit 42.

  The association data creation unit 62 creates association data by associating the weather change information acquired by the weather information acquisition unit 61 with the power consumption pattern acquired by the power acquisition unit 41. The association data creation unit 62 stores the created association data in the storage unit 42. The weather forecast input unit 63 inputs forecast information of the weather change before or on the current day. For example, the weather forecast input unit 63 acquires the forecast information of the outside air temperature change via the Internet or the like on the day of operation of the production line 1 and stores it in the storage unit 42. In addition, you may make it manually input the forecast information of a weather change into the weather forecast input part 63 by an operator.

  The planned power consumption creation unit 64 creates a pattern of planned power consumption based on the association data created by the association data creation unit 62 and the weather change forecast information inputted by the weather forecast input unit 63. The planned power consumption creation unit 64 stores the created planned power consumption pattern in the storage unit 42. The equipment extraction unit 65 extracts equipment that is not affected by weather changes from the first machine tool 11, the first work transfer robot 13, the second machine tool 12, and the second work transfer robot 14 that constitute the production line 1. To do. For example, since the first machine tool 11 and the first workpiece transfer robot 13 are facilities that require high-precision machining or the like, the facility extraction unit 65 includes the first machine tool 11 and the first workpiece transfer robot 13 other than the first machine tool 11 and the first workpiece transfer robot 13. (2) The machine tool 12 and the second workpiece transfer robot 14 are extracted as equipment that is not affected by changes in the outside air temperature, and identification information and the like of each equipment is stored in the storage unit 42.

  The grouping processing unit 43 reads the power consumption pattern and the grouped power value stored in the storage unit 42, and groups the power consumption pattern into the above-described steady power, dynamic power, and standby power. The blocking processing unit 44 reads the grouped power consumption patterns and the level-divided power values stored in the storage unit 42, classifies the grouped power consumption patterns by the level-divided power values, and blocks them. Details of blocking will be described later. The display control unit 45 displays the blocked power consumption pattern on the display device 17. The rearrangement processing unit 46 rearranges and leveles the blocks of the power consumption pattern of the group to which the block designated by the worker belongs among the blocked power consumption patterns displayed on the display device 17.

  In the storage unit 42, weather change information acquired by the weather information acquisition unit 61, power consumption patterns acquired by the power acquisition unit 41, association data created by the association data creation unit 62, weather input by the weather forecast input unit 63 Change prediction information, planned power consumption pattern created by the planned power consumption creation unit 64, equipment identification information not affected by weather changes extracted by the equipment extraction unit 65, and groups used when grouping power consumption patterns The divided power value, the level-divided power value used when the power consumption pattern is divided for blocking, and the target power value that is the upper limit contracted with the power company, for example, are stored in advance. When the peak power value of the power consumption cannot be controlled so as not to exceed the target power value, the power storage control unit 66 supplies power from the power storage device 53, and the peak power value of the power consumption becomes the target power value. On the other hand, power is stored in the power storage device 53 in a time zone where there is a margin, for example, a time zone within an operation time such as a lunch break in a factory.

(5. Processing by power consumption control device)
Next, execution of the power control program by the power consumption control device 16 will be described with reference to FIG. Here, the power control program is based on the association data between the information on the outside air temperature change and the power consumption pattern that changes with time corresponding to the outside air temperature change information and the prediction information on the outside air temperature change. Create planned power consumption patterns for the machine tools 11, 12, the first and second workpiece transfer robots 13, 14, and the air conditioners 51, 52, and finally rearrange the planned power consumption patterns for the entire production line 1 for leveling. To do.

  As shown in FIG. 3, first and second machine tools 11 and 12, first and second workpiece transfer robots 13 and 14, and an air conditioner that read information on daily outside temperature changes and correspond to the outside temperature change information. The power consumption patterns of the devices 51 and 52 are read and stored (steps S1 and S2). Then, association data is created by associating the accumulated information on the outside air temperature change with each power consumption pattern (step S3). Information on changes in the outside air temperature and each power consumption pattern are read and accumulated as needed, and the association data is updated as needed.

  Specifically, the weather information acquisition unit 61 in FIG. 2 reads information on daily outside temperature changes from a thermometer (not shown) installed outside the building, and the power acquisition unit 41 in FIG. 2 acquires weather information. Each power consumption is read from the first and second machine tools 11 and 12, the first and second work transfer robots 13 and 14, and the air conditioners 51 and 52 in accordance with the acquisition of the information of the outside air temperature change in the unit 61. Then, the association data creation unit 62 in FIG. 2 associates how the power consumption changes due to a change in the outside air temperature.

  Next, it is determined whether or not a planned power consumption pattern is to be created (step S4). If no planned power consumption pattern is to be created, the process returns to step S1 and the above-described processing is repeated. On the other hand, when creating a planned power consumption pattern in step S4, forecast information of outside air temperature change is input (step S5). And each power consumption pattern of the 1st, 2nd machine tools 11 and 12, the 1st and 2nd work conveyance robots 13 and 14 and the air conditioners 51 and 52 is created based on the association data and the forecast information of the outside air temperature change. (Step S6).

  Specifically, the weather forecast input unit 63 in FIG. 2 inputs forecast information of tomorrow's outside temperature change as of today, for example, when a planned power consumption pattern for tomorrow is to be created. Then, the planned power generation unit 64 shown in FIG. 2 performs the first and second machine tools 11 and 12, the first and second workpiece transfer robots 13 and 14 based on the association data and the forecast information of tomorrow's outside air temperature change. And each power consumption pattern of air conditioners 51 and 52 is created.

  Then, each power consumption pattern is grouped (step S7). Specifically, the grouping processing unit 43 in FIG. 2 includes the power consumption pattern P1 and the first machine tool that combine the first machine tool 11 and the first work transfer robot 13 illustrated in FIG. The grouped power values W1 and W2 of the machine 11 and the first workpiece transfer robot 13 are read. In addition, although the power consumption pattern P1 which combined the 1st machine tool 11 and the 1st workpiece conveyance robot 13 is shown, you may make it read and process separately. The same applies to the second machine tool 12 and the first workpiece transfer robot 14. However, for the convenience of explanation, the second machine tool 12 and the first workpiece transfer robot 13 are not shown because they are the same as the first machine tool 11 and the first workpiece transfer robot 13.

  The grouped power values W1 and W2 are, for example, power values for determining standby power when the power consumption is less than W1, and are determined as steady power when the power consumption is greater than or equal to W1 and less than W2. This is a power value for determining dynamic power including steady power when the power consumption becomes W2 or more. The grouping processing unit 43 groups the power consumption patterns from the time point 0 to the time point t1 when the power consumption is equal to or higher than W1 and lower than W2 in the power consumption pattern P1 into patterns of steady power. Further, the power consumption patterns in the time period from the time point t1 to the time point t4 when the power consumption becomes W2 or more in the power consumption pattern P1 are grouped into dynamic power patterns including steady power. Then, the power consumption patterns in the time period from the time point t5 to the time point t6 when the power consumption is less than W1 in the power consumption pattern P1 are grouped into standby power patterns.

  Similarly, the grouping processing unit 43 reads the power consumption pattern P2 of the air conditioner 51 and the grouping power values W6 and W7 of the air conditioner 51 shown in FIG. 4B stored in the storage unit 42. The same applies to the air conditioner 52. However, for convenience of explanation, the air conditioner 52 is the same as the air conditioner 51 and is not shown. The grouped power values W6 and W7 are, for example, power values for determining standby power when the power consumption is less than W6, and are determined as steady power when the power consumption is greater than or equal to W6 and less than W7. The power value for determining the dynamic power including the steady power when the power consumption becomes W7 or more.

  The grouping processing unit 43 groups the power consumption patterns in the time period from time point 0 to time point t1 and from time point t4 to time point t5 in which the power consumption is W6 or more and less than W7 in the power consumption pattern P2 into regular power patterns. Further, the power consumption patterns in the time period from time t1 to time t4 when the power consumption becomes W7 or more in the power consumption pattern P2 are grouped into dynamic power patterns including steady power. Then, the power consumption patterns in the time period from time t5 to time t6 when the power consumption is less than W6 in the power consumption pattern P2 are grouped into standby power patterns. In this example, for convenience of explanation, the time zone when the power consumption patterns P1 of the first and second machine tools 11 and 12 and the first and second workpiece transfer robots 13 and 14 are grouped and the air conditioner 51 are used. , 52 are set to the same time zone when the power consumption patterns P2 are grouped.

  Next, grouping of the power consumption patterns of the first machine tool 11 and the first workpiece transfer robot 13, grouping of the power consumption patterns of the second machine tool 12 and the second workpiece transfer robot 14, and air conditioners 51 and 52 When the grouping of each power consumption pattern is completed, each dynamic power pattern of the first machine tool 11 and the first work transfer robot 13, the second machine tool 12 and the second work transfer robot 14, and the air conditioners 51 and 52 is obtained. Then, the level of power consumption is divided in each steady power pattern and each standby power pattern (step S8). The level-divided first machine tool 11 and first work transfer robot 13, second machine tool 12 and second work transfer robot 14, dynamic power patterns of the air conditioners 51 and 52, steady power patterns and Each standby power pattern is blocked in order to simplify (step S9).

  Specifically, the block processing unit 44 in FIG. 2 reads the level-divided power values W3 and W4 of the first machine tool 11 and the first work transfer robot 13 stored in the storage unit 42. Then, in the dynamic power pattern of the first machine tool 11 and the first workpiece transfer robot 13 grouped by the grouping processing unit 43, the consumption during the time period from the time point t1 to the time point t2 when the power consumption becomes W2 or more and less than W3. Power pattern, power consumption pattern from time t2 to time t3 when power consumption is W3 or more and less than W4, time zone from time t3 to time t4 when power consumption is W4 or more (the peak power value at this time is W5) Levels are divided into different power consumption patterns.

  Then, as shown in FIG. 5A, in order to simplify the level-divided dynamic power pattern, steady power pattern, and standby power pattern, the blocks are rectangularly formed. That is, the pattern of the dynamic power in the time zone from the time point t1 to the time point t2 when the power consumption is equal to or greater than W2 and less than W3 is blocked into a rectangular block B1 having a height of W3-W2 and a width of t2-t1. The dynamic power pattern in the time period from time t2 to time t3 when the power consumption is greater than or equal to W3 and less than W4 is divided into rectangular blocks B2 having a height of W4-W2 and a width of t3-t2. The dynamic power pattern from the time point t3 to the time point t4 when the power consumption is equal to or greater than W4 is divided into rectangular blocks B3 having a height of W5-W2 and a width of t4-t3. Further, the steady power pattern from time 0 to time t5 when the power consumption is equal to or greater than W1 and less than W2 is divided into rectangular blocks B4 having a height W2 and a width t5. The standby power pattern from the time point t5 to the time point t6 when the power consumption is less than W1 is divided into rectangular blocks B5 having a height W1 and a width t6 to t5.

  Further, as shown in FIG. 6A, in order to further simplify the pattern of the blocked dynamic power, the above-described block height portions of the blocks having the near block height and the blocks having the peak power value are combined. Reblock into a rectangle. Specifically, the blocks B1 and B2 having a close block height and the block B3 having the peak power value W5 are selected, and the rectangular block B11 having the height W4-W2 and the width t4-t1 and the height W5 are selected. -W4, re-block into rectangular block B12 with width t4-t3. The same applies to the second machine tool 12 and the first workpiece transfer robot 14.

  Similarly, the blocking processing unit 44 reads the level-divided power value W8 of the air conditioner 51 stored in the storage unit 42. Then, in the dynamic power pattern of the air conditioners 51 grouped by the grouping processing unit 43, the power consumption during the time period from the time point t1 to the time point t2 when the power consumption is W8 or higher (the peak power value at this time is W9). The pattern and power consumption are divided into levels of power consumption patterns in the time zone from time t2 to time t4 when W7 or more and less than W8.

  Then, as shown in FIG. 5B, in order to simplify the level-divided dynamic power pattern, steady power pattern, and standby power pattern, the blocks are rectangularly formed. That is, the dynamic power pattern in the time period from the time point t1 to the time point t2 when the power consumption becomes W8 or more is blocked into a rectangular block B6 having a height of W9-W7 and a width of t2-t1. The dynamic power pattern in the time period from time t2 to time t4 when the power consumption is greater than or equal to W7 and less than W8 is divided into rectangular blocks B7 having a height of W8-W7 and a width of t4-t2. Further, the steady power pattern from time 0 to time t5 when the power consumption is equal to or greater than W6 and less than W7 is divided into rectangular blocks B8 having a height W7 and a width t5. The standby power pattern from the time point t5 to the time point t6 when the power consumption is less than W6 is divided into rectangular blocks B9 having a height of W6 and a width of t6 to t5.

  Then, as shown in FIG. 6B, in order to further simplify the pattern of the dynamic power that has been blocked, the above-described block height portions of the blocks having a close block height and a peak power value are combined. Reblock into a rectangle. Specifically, the blocks B6 and B7 whose block heights are close are selected and re-blocked into a rectangular block B13 having a height of W9-W7 and a width of t4-t1. As for re-blocking, the blocks may be combined only by specific processing or by electric power used for many processing.

  Next, the blocked power consumption patterns of the first machine tool 11 and the first work transfer robot 13, the second machine tool 12 and the second work transfer robot 14, the air conditioner 51, and the air conditioner 52 are combined (step S10). . Specifically, as shown in FIG. 7, the block processing unit 44 is configured to block B11, B12, B4, B5, the second machine tool 12 and the second workpiece of the first machine tool 11 and the first workpiece transfer robot 13. The blocks B11, B12, B4, and B5 of the transfer robot 14, the blocks B13, B8, and B9 of the air conditioner 51 and the blocks B13, B8, and B9 of the air conditioner 52 are stacked on one coordinate.

  Then, the stacked blocks are rearranged (step S11). Specifically, the equipment extraction unit 65 in FIG. 2 is the outside air temperature among the first machine tool 11, the first work transfer robot 13, the second machine tool 12, and the second work transfer robot 14 constituting the production line 1. Equipment that is not affected by the change, that is, the second machine tool 12 and the second work transport robot 14 other than the first machine tool 11 and the first work transport robot 13 are extracted as equipment that is not affected by the change in the outside air temperature. Then, the reassignment processing unit 47 in FIG. 2 increases the set temperature of the air conditioner 52 in the atmosphere of the second machine tool 12 and the second work transfer robot 14 from 1 to 2 in the summer, and 1 in the winter. The power consumption pattern block is rearranged and leveled by being lowered twice. That is, as shown in FIG. 8, leveling is performed by using a block B16 in which the power consumption of the block B13 of the air conditioner 52 is reduced. Even in the case of equipment that is affected by changes in the outside air temperature, that is, the first machine tool 11, when the machining accuracy exceeds the reference accuracy, the first machine tool 11 is maintained on the condition that the machining accuracy is maintained within the reference accuracy. The set temperature of the air conditioner 51 in the atmosphere of the machine tool 11 may be changed to rearrange and level the blocks of the power consumption pattern.

  As another reassignment processing method, the reassignment processing unit 47, when the operator designates the block B12 stacked in two stages, as shown in FIG. 9, the block B11 stacked in two stages. , B13 is leveled by recombination by setting the block B14 to be increased from t4 to t41 within a range not exceeding the machining cycle time (time point t6). As this replacement method, for example, in the first and second machine tools 11 and 12, the time is increased by changing the machining order, and the second machine tool is used when machining the power of the first machine tool 11 is large. 12 is processed so that the electric power is small, and the state (processing) where the electric power is large does not overlap and is leveled. In the first and second workpiece transfer robots 13 and 14, the time is increased by changing the position when holding and waiting for the workpiece, and the first and second machine tools 11 and 12 are being processed. When the electric power is large, the first and second workpiece transfer robots 13 and 14 are put on standby, and are rearranged and leveled so as to shift the time of the peak electric power value. Further, when there is a margin with respect to the target power value wp, the time is reduced by changing the processing order, the power use efficiency is increased, and the productivity is improved.

  Furthermore, as yet another rearrangement processing method, the rearrangement processing unit 47, as shown in FIG. 10, is a two-step process that becomes a bottleneck when an operator designates a block B12 stacked in two stages. The power consumption of the blocks B11 and B13 stacked in the block is changed to a block B15 that is increased from 2 (w4 + w9) to 2 (wa + wb) within a range not exceeding the target power value wp. For example, the first and second workpiece transfer robots 13 and 14 increase the power consumption by increasing the rotational speed of the first and second turning arms 33 and 34, and the first and second work transfer robots 13 and 14 increase the power consumption. The power consumption is increased by increasing the processing speed in the second machine tools 11 and 12 (increase), and the level is reduced by recombination so as to decrease the peak power value. The first and second machine tools 11 and 12 and the first and second workpiece transfer robots 13 and 14 are rearranged and leveled so that the states (machining) of large electric power do not overlap. Further, even when the target power value wp is exceeded, the power consumption is reduced by reducing the machining speed and the like, and the first and second machine tools 11 and 12 and the first and second workpiece transfer robots 13 and 13 The level of the peak power value is shifted and leveled by changing the power of 14.

  Next, the rearranged power consumption pattern block is displayed on the display device 17 (step S12). At this time, the power consumption pattern before the rearrangement and the line (broken line shown in FIGS. 8 to 10) representing the target power value wp of the power consumption are also displayed on the display device 17 so that the quality of the power consumption pattern can be accurately visually confirmed. be able to. Then, it is confirmed whether or not the reclassification is performed again (step S13). When the reclassification is performed again, the process returns to step S11 and the above-described processing is repeated. Here, when the forecast information of the outside temperature change on the day is input, the block of the power consumption pattern rearranged and leveled yesterday is reclassified and leveled again based on the forecast information of the outside temperature change on the day. Can be adjusted. Thereby, since the probability of the change of outside air temperature increases, the precision of the dynamic power pattern rearrangement process can be improved. In addition, according to other weather information such as humidity, atmospheric pressure, etc., rearrangement processing of the power patterns of the first and second machine tools 11, 12, the first and second workpiece transfer robots 13, 14, the air conditioners 51, 52, etc. May be performed.

  On the other hand, if the reclassification is not performed in step S13, it is determined whether or not the reclassification process cannot be performed so that the power consumption pattern does not exceed the target power value even if the reclassification process is repeated (step S14). ). If the reconfiguration processing cannot be performed so that the power consumption pattern does not exceed the target power value, the power consumption pattern is corrected to use the power stored in the power storage device 53 so as not to exceed the target power value. (Step S15), all the processes are terminated. Specifically, the reassignment processing unit 46 instructs the power storage control unit 66 to control the power storage device 53 based on the corrected power consumption pattern. On the other hand, in step 14, when the leveling process can be performed by rearranging so that the power consumption pattern does not exceed the target power value, all the processes are ended.

(6. Modifications)
In the above-described embodiment, the configuration is such that the information on the outside air temperature change is acquired to associate the power consumption, but the configuration may be such that the information such as humidity is further acquired to associate the power consumption. Further, although the power consumption and the target power value that change with time are displayed, the motor current and the rated current that change with time may be displayed. Moreover, although it was set as the structure which rearranges a dynamic electric power pattern, it is good also as a structure which is rearranged by introducing an energy saving apparatus or distributing a part of stationary electric power to standby electric power, even if it is a stationary electric power pattern. And it is good also as a structure which designates the button displayed on the display apparatus 17 with a touch pen etc. as a selection means of the rearrangement processing methods, such as a change of a process order and a process speed.

(7. Effect of power consumption control process)
The dynamic power can be selected as the adjustable power consumption among the planned power consumption of the entire equipment associated with the weather change prediction information. Then, by adjusting the dynamic power, it is possible to easily control the peak power value of the planned power consumption so as not to exceed the target power value.

1: production line 11, 12: machine tool, 13, 14: work transfer robot, 15: control device 16: power consumption control device, 17: display device 41: power acquisition unit, 42: storage unit, 43: grouping process Unit 44: block processing unit 45: display control unit 46: reassignment processing unit 51, 52: air conditioner 53: power storage device 54: temperature-controlled room 61: meteorological information acquisition unit 62: association data creation unit 63: Weather forecast input unit 64: Planned power consumption creation unit, 65: Facility extraction unit, 66: Power storage control unit

Claims (7)

A weather information acquisition unit for acquiring information on weather changes;
In correspondence with the acquisition of the weather change information in the weather information acquisition unit, a power acquisition unit that acquires a pattern of power consumption that changes with time in equipment related to the production of goods,
An association data creation unit that creates association data by associating the weather change information acquired by the weather information acquisition unit with the power consumption pattern acquired by the power acquisition unit;
A weather forecast input unit for inputting forecast information of the weather change;
A planned power consumption creation unit that creates a pattern of planned power consumption based on the association data created by the association data creation unit and the forecast information of the weather change input by the weather forecast input unit;
The pattern of the planned power consumption created by the planned power consumption creation unit is the steady power pattern as the power consumption in the operation ready state of the equipment, and the consumption obtained by removing the steady power from the power consumption during the operation of the equipment A dynamic power pattern as power, a grouping processing unit for grouping,
A rearrangement processing unit for rearranging at least the dynamic power pattern grouped by the grouping processing unit;
Equipment control equipment related to the production of goods. The weather forecast input unit inputs forecast information of the weather change of the day,
The reclassification processing unit reclassifies the rearranged dynamic power pattern again based on the forecast information of the weather change of the day input by the weather forecast input unit. Control device.   The grouping processing unit groups the steady power pattern into a standby power pattern and a pattern other than the standby power pattern as power consumption in a state where the equipment is powered on. Equipment control equipment related to the production of 2 items. The control device includes a facility extraction unit that extracts a facility that is not affected by the weather change among the facilities,
The said rearrangement process part adjusts the air conditioning of the atmosphere of the said installation extracted in the said equipment extraction part, and rearranges the pattern of the said dynamic power of this installation, The production of the thing of any one of Claims 1-3 Equipment control equipment.   The said rearrangement process part is a control apparatus of the equipment in connection with the production of the thing of any one of Claims 1-3 which rearranges the pattern of this dynamic power by increasing the time in the pattern of the said dynamic power.   The said rearrangement process part rearranges this dynamic power pattern by increasing the power consumption in the said dynamic power pattern, The control apparatus of the facility in connection with the production of the thing of any one of Claims 1-3 . The facility includes a power storage device capable of storing power,
The said control apparatus is provided with the electrical storage control part which uses the electric power accumulate | stored in the said electrical storage apparatus so that it may not exceed this target electric power value when the pattern of the said rearranged dynamic electric power exceeds a target electric power value. Equipment control equipment related to the production of any one of the items.

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