JP2001282344A - Method and system for making production plan of tact production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique related with a method and system for making the production plan of tact production capable of using an almost real lead time without changing any process in a production line by adding the specification elements of individual order reception by production line units in tact production corresponding to the individual order reception. SOLUTION: This production plan making system of tact production related with a configuration 1 is provided with a computer 500 having a storage device (storage means) 510, a data processor (data processing means) 520, and an input displaying device (input displaying means) 530 and a production plan making support processing function (production plan making supporting means) 300 being a program registered in the storage device 510 to be executed by the data processor 520.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production planning system, and more particularly to a production planning method for tact production corresponding to an individual order and a technique relating to the production planning system.

[0002]

2. Description of the Related Art Conventionally, in making a production plan for an ordered project and executing the production plan, process management is performed at a production site based on an instructed production plan, and the contents of the production plan are changed in accordance with the sales situation of products. If there was, they responded by changing the process in the production line.

[0003]

However, the prior art has the following problems. The first problem is
Since the number of physical processes at the production site is different from the number of instructed processes, only a specific dedicated person can grasp the production plan and its execution. The reason is that the change of the production process changes not the line but the number of processes in the line.

[0004] The second problem is that the production lead time is calculated based on a common standard lead time, so that there is a difference between the production plan and the actual production lead time. The reason is that the logic for calculating the actual lead time could not be set.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a tact production corresponding to an individual order, by taking into account the specification elements of the individual order on a production line basis. It is an object of the present invention to provide a tact production production planning method capable of utilizing an actual lead time close to reality without changing a process in a line, and a technique relating to the production planning system.

[0006]

The gist of the present invention according to claim 1 is a production planning method of tact production for an individual order, comprising: a line standard table having a standard daily number of units via an input device; , A line development pattern table having a standard lead time, and a standard tact table having a tact time start time, an end time, and a start order are registered in a storage means as master information as a production database, A first step of registering in the storage means a daily line quantity table for each production line having transaction data as transaction information based on a production plan, and reading the order information table of the transaction information having the serial number and order specification of the individual order, Based on the standard daily number, the standard lead time, and the actual daily number, actual lead tie for each production line A second step of calculating the start order and the actual lead time of the tact time in the line development pattern table by production number of the transaction information, and registered by the actual lead time and the daily number of vehicles per line. A third step of generating a production plan initial value based on the start time and end time of the tact time and a start order, and registering the production plan initial value in the storage means as a line-by-line production plan table of the transaction information. And the production plan initial values registered in the storage means are displayed on the input display means, and when the operator determines that the start order of the input line is not correctly assigned, the The table is corrected, the lines are developed, the production plan initial values are generated again, and displayed again on the input display means, and the input line A fourth step of, when the operator determines that the order is correctly assigned, registering the generated production plan initial value as a production plan drafting value in the line-by-line production plan table; The step of calculating includes calculating a coefficient using the standard daily number as a numerator and the actual daily number as a denominator, and multiplying the standard lead time by the calculated coefficient to calculate the actual lead time. The invention resides in a production planning method for tact production characterized by the following. The gist of the present invention according to claim 2 is that, in the third step, the start order and the actual lead time of the line numbering pattern table for each production number, the start time of the tact time for each line per day, and Based on the end time, obtain the takt time having the information of the start time and the end time for each line per day per unit, and assign the takt time of each input line in ascending order of the serial number of the order information table. Then, in order to determine the allocation of the tact time of the succeeding line, the start time of the takt time for each subsequent line per day and the actual lead time are added to the start time of the construction date of the input line. The tact time initial value having the start time and the end time of the succeeding line is calculated by comparing the tact time initial value with the actual lead time. It consists in production planning method tact production according to claim 1, characterized in that it comprises the step of generating the production plan initial value and a construction order. The gist of the present invention according to claim 3 is that, in the second step, the actual lead time registered in the line number pattern table for each production number is displayed on the input display means, and the actual lead time is displayed based on the specification of an individual order. Lead time,
The method according to claim 1 or 2, further comprising a step of correcting the data via the input display means. The gist of the present invention according to claim 4 is that, in the fourth step, a sequence code for specifying a sequence having one or a plurality of lines registered in the line standard table and the line development pattern table and a subsequent code Based on the sequence code to be performed, the tact initial value is calculated for each production line for each sequence, and if the subsequent sequence has a line that follows in common with the parallel sequence, the line of the parallel sequence In, calculates the start date and start time of the input tact of the subsequent series, respectively, and adopts the later date and time of the start date and time of the start time and the start time of the calculated input tact, and adopts the later date and time. 4. The production plan drafting for tact production according to claim 1, wherein a tact initial value for each serial number is calculated, and a production plan draft value corresponding to a parallel series is generated. It resides in the law. The gist of the present invention described in claim 5 resides in a storage medium in which a program capable of executing the production planning method of tact production described in claims 1 to 4 is recorded. The gist of the present invention described in claim 6 is a production planning system for tact production for individual orders, which processes storage means and a program in which master information, which is a production database, is registered via an input display means. And a production plan planning support processing means, which is a program registered in the storage means and executed by the data processing means. A standard tact table having a start time and an end time of the tact time, a line development pattern table having a standard default, a custom default, and a standard lead time, and a line standard table having a standard daily allowance are registered. The master information, the daily number per production line table with the actual daily number for each production calendar, and the actual Production line table having production time, start time, end time, and actual lead time generated from the production line development pattern table. Transaction information in which an order specification and an order information table having a characteristic category for managing information such as a production month are stored, and the production plan drafting support means converts the standard daily amount into the actual daily amount. The actual lead time for each production line is calculated by multiplying the standard lead time by the coefficient calculated by dividing by the number, and registered in the line development pattern table for each production number. A production plan initial value is generated based on the start time, the end time, and the actual lead time of the separately registered tact time, and the input display means Display, and when it is determined by the operator that the start order of the input line is correctly assigned, the initial production plan value is registered in the line-by-line production plan table as a production plan drafting value. It exists in the production planning system for tact production. Claim 7
The gist of the present invention is that the production plan drafting support means comprises:
The actual lead time registered in the serial number-specific line development pattern table is displayed on the input display means, and the operator corrects the actual lead time via the input display means based on the specifications of the individual order. 7. A production planning system for tact production according to claim 6, wherein: The gist of the present invention according to claim 8 is that the production plan drafting support means is that the initial order of the production plan displayed on the input display means is not correctly assigned to the start order of the input line by the operator. If it is determined, the start order of the serial number line development pattern table is corrected via the input display means, the line is developed again, and a production plan initial value is generated again and the input display means is displayed. The production plan planning system for tact production according to claim 6 or 7, wherein the information is displayed. The gist of the present invention according to claim 9, is that the production planning support means specifies a sequence having one or a plurality of lines registered in the line standard table and the line development pattern table, respectively. Based on the following and the subsequent sequence code, the tact initial value for each production line is calculated for each sequence, and among the sequences following the parallel sequence, there is a common line following the parallel sequence. In the case of the lines of each series in parallel, the start date and start time of the input tact of the subsequent series are respectively calculated, and the late data of the start date and start time of the calculated input tact is calculated. 7. A production plan drafting value is generated by calculating a tact initial value for each serial number line after the subsequent series by adopting and adopting the series. Resides in the production planning system of tact production according to any one of the.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. (Embodiment 1) As shown in FIG. 1, a production planning system for tact production according to Embodiment 1 includes a storage device (storage means) 510, a data processing device (data processing means) 520, and an input display device. (Input display means) 530 and a production plan planning support processing function (production plan planning support processing means) 300 which is a program registered in the storage device 510 and executed by the data processing device 520. Is done.

[0008] The storage device 510 registers the production plan drafting support processing function 300, the master information 100, and the transaction information 200.

The production plan drafting support function 300 is roughly composed of a production number line development pattern generation function 310 and a production number line production planning function 320. Further, the line development pattern generation function 310 for each production number includes an initial development pattern development function 311 and an initial development pattern correction function 312.
It is roughly composed of The production schedule planning function 320 for each production line is a function 32 for developing a daily production plan for each production line.
1 and a production plan correction function 322 for each production line and a production plan recalculation function 323.

The master information 100 which is a tact production database is stored in a storage device 51 via an input display device 530.
0 is registered. The transaction information 200 based on the production plan is registered in the storage device 510 via the input display device 530 or after being processed by the data processing device 520.

The data processing device 520 includes a storage device 510
After reading the production plan drafting support processing function 300 from, the master information 100 and the transaction information 200 are read, and data processing of these information is performed.

An input display device 530 having a keyboard and a display displays the storage device 510 transaction information 200. The display result of the input display device 530 is corrected by the operator.

FIG. 2 is a diagram showing the configuration of the master information 100 and the transaction information 200 of FIG. The master information 100 is schematically composed of a standard tact table 110, a line development pattern table 120, a line standard table (line standard TBL) 130, and a calendar master table (production calendar) 140.

The standard tact table 110 is master data of the tact start time and the end time of each line per plant and per day per unit, and includes a factory code (factory CD), a per day number, a start order 113, and a start time of tact. 111 and end time 11
2

The line development pattern table 120 is the master data of the standard lead time of each factory and each line, and also manages the specification default of individual orders. Factory code (factory CD), development pattern code by line (expansion pattern code CD by line), tact time, standard default 1
22, a characteristic default 123 and a standard lead time (standard LT) 121.

The line standard table 130 is master data indicating a line order, and includes a factory code (factory CD),
It has a line code (line CD), a standard daily number 131 and the like.

[0017] Calendar master table (production calendar)
Reference numeral 140 denotes master data of factory operation days, which is used when registering the actual daily number per production calendar in the daily number per production line table 210 described later.

The transaction information 200 is roughly composed of a daily line number table 210 for each production line, a line development pattern table 220 for each production number, a production plan table 230 for each line, and an order information table 240.

The daily number per production line table (production planned daily number table) 210 is a transaction for registering the actual daily number per production calendar 140. It has a factory code (factory CD), a line code (line CD), and the actual daily number 211.

Line development pattern table 220 by production number
Is a transaction created by the initial development pattern development function 311 for correcting the production lead time of an individual order that cannot be handled by the standard pattern. The initial development pattern correction function 312 refers to this transaction and corrects the actual lead time calculated from the standard lead time. Spec No., line-by-line development pattern code (line-by-line development pattern CD) 221, actual lead time 222 calculated from standard lead time, and start order 22
3

The production planning table 230 for each line includes a factory code (factory CD), a specification number, a line code (line CD), an actual lead time (real LT) 231 generated from the actual lead time 222, and a start time 2 of the tact time.
32 and an end time 233.

The order information table 240 is a transaction of the individual order information, and manages the serial number, the specification of the individual order, the production month, and the like by using the transaction. It has a factory code (factory CD), serial number, and characteristic category (order characteristic flag) 241.

FIG. 3 is a processing flowchart showing the flow of the processing of FIG. The configuration of the production plan drafting support function 300 of FIG. 1 will be described with reference to FIG.

Line development pattern generation function 310 by production number
Before creating the line-based production plan table 230 which is a transaction having the production plan initial value 250 by the production line-by-separation line production planning function 320, the production line-by-separation line table 2 of the transaction information 200
Create 20.

Here, the initial line development pattern development function 311 performs a line-based development pattern code 221 based on the standard pattern in the line development pattern table 120.
And the actual lead time 22 calculated from the standard REIT time
No. 2 and line number pattern table 220 by production number
Create

The initial development pattern correction function 312 registers the calculated actual lead time 222 in the production-specific line development pattern table 220 created by the initial line development pattern development function 311. Further, the operator corrects the registered actual lead time 222 via the input display device 530 as necessary, taking into account information based on actual production results.

A production planning function 320 for each production line and each line
Creates a transaction of a production plan using the actual lead time 222 and the start order 223 of the line numbering pattern table 220 by production number. Specifically, the start date of the input line is determined, and then the start date and the start order of the subsequent line are calculated using the actual lead time 222 of the registered serial number development line table 220. Do.

Here, the production number development function 321 for production line, production line for each production line, specification and production month of the production order, individual production order, each table of the master information 100, and each production The start date and start order of the earliest input line are determined from the table and the line development pattern table 22 for each production number that has already been calculated.
Using the actual lead time 222 and the start order 223 of 0, the start date and start order of the subsequent line are calculated, and the production plan initial value 250 for each line is generated.

The production plan modification function 322 for each production line displays the production plan initial value 250 for each line generated by the daily production plan development function 321 for each production number and displays the screen of the input display unit 530. , The start order 223 of the production line number development line table 220 is corrected.

The production plan recalculation function 323 develops the preceding and following lines in accordance with the correction confirmation instruction of the line numbering pattern table 220 for each production number, and again generates the production plan initial value 250 for each line. The production plan initial value 250 of this processing result is displayed on the input display device 530. The operator judges the displayed production plan initial value 250 with respect to the order of the line and the like. The development pattern table 220 is corrected again, and the production plan initial value 250 for each line is generated again.

Next, a method using the production planning system for tact production will be described with reference to FIG.

First, the master information 100 is registered in the storage device 510 via the input device 530 (step A).
1).

Next, via the input display device 530, the daily number table per production line (production planned daily number table) 210 of the transaction information 200 is stored in the storage device 51.
0 (step A2).

After the registration of the master information 100 and the daily number per production line table 210 of the transaction information 200, the order information table 240 is read, and the daily number per production line table 210 of the master information 100 and the transaction information 200 is read. Based on this information, the production plan planning support processing function 300 generates a production plan initial value 250 (step A3, step A4).

The generated production plan initial value 250 is registered in the line-based production plan table 230 of the storage device 510 (step A5).

The production plan initial value 250 registered in the production plan table 230 for each line in the storage device 510 is displayed on the input display device 530 (step A6).

The operator refers to the production plan initial value 250 displayed on the input / display device 530 and compares the actual production order with the start order 223 of the production line-by-product line development pattern table 220 of the transaction information 200 by production number. In consideration of the information based on the results, a correction is made via the input display device 530 as necessary. (Step A7).

Finally, the production planning support function 300
The production plan recalculation function 323 generates the production plan initial value 250 again based on the corrected line number pattern table 220 for each production number, and calculates the target production plan drafting value 260. Next, the generated production plan drafting value 260 is registered again in the line-by-line production planning table 230 of the storage device 510 (step A8).

Next, the operation of the production plan planning support processing function 300 will be described in detail.

As shown in FIG. 3, all the master information 10
0 and the daily number per production line table 210 of the transaction information 200 are registered in the storage device 510, and the order information table 240 is registered in the storage device 510 (step A1, step A2).

The production plan drafting support processing function 300 calculates the production plan initial value 250 for each line as in steps A3 to A6. First, the initial development pattern development function 311 generates a production-specific line development pattern table 220 based on the order information table 240, the line development pattern table 120, the line standard table 130, and the daily production number per production line table 210.

Next, in order to determine the actual lead time for each production line registered in the production line development pattern table 220, the initial development pattern correction function 312 uses the standard lead time 12 of the line development pattern table 120.
The actual lead time 222 is calculated based on “1”. The actual lead time 222 is registered in the line number pattern table 220 for each production number.

The method of obtaining the production lead time for each production number and for each line is as follows.
31 is used as a numerator, and the actual daily number 211 of the daily line number per production line table 210 is used as a denominator to calculate a coefficient, and the standard lead time (standard L
T) 121 is multiplied by this coefficient to obtain the actual lead time 222
Is calculated as The actual lead time 222 is used as the actual lead time 231 of the production plan table 230 for each line registered for each production line.

Further, the registered line development pattern table 220 for each production number is displayed on the input display device 530, and the operator takes into consideration the information based on the actual production results with respect to the actual lead time 222, and takes necessary information. Input display device 53
Make corrections through 0.

At the time of selection from the line development pattern master, a default flag is determined from the order characteristic flag in the order information (table 240) and selection is made (step A).
3).

The equation for calculating the coefficient (a) and the equation for calculating the actual lead time (b) are as follows. Coefficient = standard daily number / actual daily number ... (a) Actual lead time = standard lead time * coefficient ... (b) Next, daily production plan by production line and by line The expansion function 321
Production line-specific line development pattern table 220, production line-specific daily number table 210, and standard tact table 110
Based on this, the start date and start time of the input line (the first line) are calculated.

In calculating the start date and the start time,
Based on the actual daily number 211 of the daily line number per production line table 210, which is a transaction for each production calendar, and the start time 111 and the end time 112 of the standard tact table 110, the start time and the end of each line per day Acquire tact time with information on time. After that, the tact time of each input line (first step) is allocated in ascending order of the serial number in the order information table 240 (in ascending order).

Further, in order to determine the tact time of the succeeding line, the start time of the tact time already obtained for the tact time for each line and the number of hits per day and the start time of the construction day of the input line + the actual lead time are calculated. Comparing the line-out time and calculating the takt time initial value having information on the start time and end time of the succeeding line (the line-out time of the input line is calculated from the start time of the takt time for each line per day that has already been acquired). (Assigned to the tact time of the date and time before) (step A4).

A production plan initial value 250 having a tact time initial value and an actual lead time 231 having information on the start time 232 and the end time 233 for each production line is generated, and the production plan table for each line in the storage device 510 is generated. 230
(Step A5).

The production plan initial value 250 for each production line registered in the storage device 510 is displayed on the input display device 530 (step A6).

In the production plan modification function 322 for each production line, the operator inputs the production plan initial value 250 for each production line.
Is displayed, and the start order 223 of the line numbering pattern table 220 for each production number is corrected from the screen of the input display device 530 as necessary in consideration of the start date and start time of the input line. Next, the production plan recalculation function 3
23 displays, on the input display device 530, the production plan initial value 250 that has been developed to the preceding and following lines based on the serial number-specific line development pattern table 220 corrected by the operator's correction confirmation instruction. The operator judges the displayed initial value 250 of the production plan, and when the correction result shows an inconvenience in the start date and the start time of the input line, the production is performed by the production line deployment function 321 according to the serial number according to the production number. Plan initial value 25
The process returns to step A4 to generate 0 again (step A7).

If no inconvenience occurs in step A7, the modified production plan initial value 250 is replaced with the production plan drafting value 26.
Line-wise production plan table 2 in storage device 510 as 0
30 (step A8).

By defining the succeeding line codes in the line standard table 130 of the master information 100, it is possible to perform the production planning process even if there is a common succeeding line among the parallel lines.

Since the production planning system for tact production according to the first embodiment is configured as described above, the following effects can be obtained.

The production lead time is changed not by changing the number of processes in the line but by changing the standard lead time based on the specification corresponding to the order information table 240, so that the planner can change the production process. It becomes easy to grasp the whole.

The specification difference in most individual orders can be automatically selected by the registered standard default 122, and the correction of the standard pattern is set before the production planning process. Can be changed.

That is, in tact production, which is one of the individual order production methods, it is possible to easily make a production plan in which the order specification element is added for each production line.

(Embodiment 2) A production plan planning system for tact production according to Embodiment 2 will be described in detail with reference to FIG.

FIG. 4 is a conceptual diagram showing a processing flow in the production plan planning system for tact production according to the second embodiment. α, β, and γ indicate each series. S,
K, T, G and E indicate each line. Each line has one or more steps.

The configuration of the computer 500 used in the tact production production planning system according to the second embodiment is as follows.
As in the first embodiment, the concept of a series including a line is taken in so that a parallel line, that is, a parallel series can be handled.

In the second embodiment, a series code specifying a series and an item of a subsequent series code are added to the line standard table 130 and the line development pattern table 120 of the master information 100 (not shown), and the production plan A function of calculating a tact initial value for each line per line is added to the planning support processing function 300.

First, each step in which the production plan drafting support processing function 300 operates is the same as the step A in the first embodiment.
The same processing as in step 1 to step A4 is performed.

Next, in addition to the process of calculating the initial takt time for each production line for each line as shown in FIG. 3 in the production plan planning support processing function 300, the initial takt time for each production line for each series is added. Calculate the value. At this time, if there is a common line in the subsequent series, the start time of the input tact of the subsequent series is calculated in each of the parallel series lines, and the date and time of the start date and start time of the calculated input tact are calculated. Among them, the late date and time are adopted, and the initial tact value for each production line for each subsequent series is generated.

Since the production plan planning system for tact production according to the second embodiment is configured as described above, the following effects can be obtained in addition to the effects of the first embodiment.

It is possible to make a production plan even when there is a line of a series that is in parallel and a line of a series that follows in common with these series.

In the present embodiment, the present invention is not limited to this, and can be applied to a technique relating to a tact production production planning method and a production planning system suitable for applying the present invention. .

Further, the number, position, shape, etc. of the above-mentioned constituent members are not limited to the above-mentioned embodiment, but can be set to a suitable number, position, shape, etc. for carrying out the present invention.

In each of the drawings, the same components are denoted by the same reference numerals.

[0069]

Since the present invention is configured as described above, the following effects can be obtained.

The first effect is that it is possible to automatically calculate the lead time for each production number and for each line which is close to the actual situation. The reason is that the coefficient is calculated using the standard daily number in the line standard table as the numerator and the actual daily number in the daily number table for each production line as the denominator. This is for calculating the time.

A second effect is that even if the number of steps in a line fluctuates, it can be operated without changing the program logic. The reason is that a line development pattern table is employed.

A third effect is that an optimal line development pattern can be automatically selected according to the serial number characteristics at the time of receiving an order. The reason is that the line development pattern table has a default flag for each characteristic corresponding to each order.

A fourth effect is that a tact time can be automatically set in response to a change in the actual number of vehicles. The reason is that the standard tact table is adopted.

The fifth effect can be applied to a plurality of parallel series lines. The reason is that the line standard table and the line development pattern table each have the item of the series code and the following series code, and have a function to calculate the initial tact value for each series and for each line for each series. is there.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a production plan drafting system for tact production according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of master information and transaction information of FIG.

FIG. 3 is a processing flowchart showing a flow of the processing in FIG. 1;

FIG. 4 is a conceptual diagram showing a processing flow in a tact production production planning system according to a second embodiment of the present invention.

[Explanation of symbols]

α, β, γ sequence S, K, T, G, E line 100 Master information 110 Standard tact table 111 Start time 112 End time 113 Start order 120 Line development pattern table 121 Standard lead time (standard LT) 122 Standard default 123 Characteristics Default 130 Line standard table (Line standard TBL) 131 Standard daily number 140 Calendar master table (Production calendar) 200 Transaction information 210 Daily number table by production line (Production planned daily number table) 211 Real daily number 220 Production number Separate line development pattern table 221 Line-specific development pattern code (line-specific development pattern CD) 222 Actual lead time 223 Start order 230 Production plan table 231 by line Actual lead time (actual LT) 232 At start 233 End time 240 Order information table 241 Characteristic classification (order characteristic flag) 250 Production plan initial value 260 Production plan draft value 300 Production plan drafting support processing function (Production planning drafting processing means) 310 Production line development pattern generation function 311 Initial development pattern development function 312 Initial development pattern correction function 320 Production line planning function for each production line 321 Daily production plan development function for each production line 322 Production plan modification function for each production line 323 Production plan recalculation function 500 Computer 510 Storage device (storage means) 520 Data processing device (data processing means) 530 Input display device (input display means)

Claims (9)

[Claims] 1. A production planning method for tact production for an individual order, comprising: a line standard table having a standard daily number, a line development pattern table having a standard lead time, and a tact time A standard tact table having a start time, an end time, and a start order is registered in a storage unit as master information which is a production database, and a daily line number table for each production line having a real day number is a transaction based on a production plan. A first step of registering the information as the information in the storage means, and reading an order information table of the transaction information having a serial number and an order specification of the individual order, the standard daily allowance, the standard lead time, and the actual daily allowance. Based on the number of units, the actual lead time for each production line is calculated, and the tact time and the actual And a start time, an end time, a start order, and a start time of the tact time registered by the actual lead time and the number of daily hits per line. A third step of generating a production plan initial value based on the above, and registering the production plan initial value in the storage unit as a line-by-line production plan table of the transaction information; and the production plan initial value registered in the storage unit. Is displayed on the input display means, and if the operator determines that the start order of the input line is not correctly allocated, the line development pattern table for each production number is corrected to develop the line, and the production plan is initialized. The value is generated again and displayed again on the input display means, and the operator determines that the start order of the input line is correctly assigned. A fourth step of registering the generated production plan initial value in the line-by-line production plan table as a production plan drafting value, wherein the second step is a step of: A step of calculating a coefficient having the actual daily number as a denominator and multiplying the standard lead time by the calculated coefficient to calculate the actual lead time. . 2. The third step is based on the start order and the actual lead time of the line development pattern table for each production number, and the start time and end time of the tact time for each line per day. Obtain the tact time having the information of the start time and the end time for each line per day per unit, assign the tact time of each input line in ascending order of the serial number of the order information table, and perform In order to determine the allocation of the tact time, the start time of the tact time for each subsequent line per day and the line out time calculated by adding the actual lead time to the start time of the construction day of the input line. To calculate a tact time initial value having a start time and an end time of a subsequent line, and have the tact time initial value, the actual lead time, and the start order. Production planning method tact production according to claim 1, characterized in that it comprises the step of generating the production plan initial value. 3. The second step displays the actual lead time registered in the line number pattern table for each production number on the input display means, and inputs the actual lead time based on the specification of an individual order. 3. The production planning method for tact production according to claim 1, further comprising a step of correcting the information via a display unit. 4. The fourth step is based on a sequence code specifying one or more lines registered in the line standard table and the line development pattern table and a subsequent sequence code. Calculate the tact initial value for each line of each serial number for each series, and if the subsequent series has a line that follows in common with the parallel series, the line of the parallel series The start date and start time of the input tact are respectively calculated, and the date and time of the start date and the start time of the calculated input tact are adopted, and the later date and time are employed, and the line for each production number in the subsequent series and thereafter is used. 4. The production planning method for tact production according to claim 1, wherein a tact initial value is calculated, and a production planning value corresponding to a series in parallel is generated. 5. A storage medium in which a program capable of executing the production planning method for tact production according to claim 1 is recorded. 6. A production planning system for tact production for individual orders, comprising: storage means for registering master information or the like as a production database via an input display means; and data processing means for processing a program. And a production planning support processing means, which is a program registered in the storage means and executed by the data processing means, wherein the storage means has a start time of a takt time for each plant, for each line and for each day. A master tact table in which a standard tact table having an end time, a line development pattern table having a standard default, a custom default, and a standard lead time, and a line standard table having a standard daily allowance are registered. Daily production volume table for each production line with actual daily production volume for each And a production plan table for each line having a start time, an end time, and an actual lead time generated from the production line development pattern table, and a production number and an order specification. An order information table having a characteristic category for managing information such as a production month; and transaction information in which the order information table is registered. The production plan drafting support means divides the standard daily number by the real day number. By multiplying the calculated coefficient by the standard lead time, the actual lead time for each production line is calculated and registered in the production line development pattern table, and registered for each line per day. A production plan initial value is generated based on the start time, the end time, and the actual lead time of the tact time, and is displayed on the input display means. When it is determined that the start order of the input line is correctly assigned by the above, the production plan initial value is registered in the line-by-line production plan table as a production plan draft value, Planning system. 7. The production plan drafting support means displays the actual lead time registered in the line number pattern table for each production number on the input display means, and the operator performs the production based on the specification of an individual order. 7. The production planning system for tact production according to claim 6, wherein the actual lead time is corrected via the input display means. 8. The production plan drafting support means, wherein the production plan initial value displayed on the input display means is:
If the operator determines that the start order of the input line has not been correctly assigned, the start order of the serial number-specific line development pattern table is corrected via the input display means, and the line development is performed again. 8. The production plan planning system for tact production according to claim 6, wherein the production plan initial value is generated again and displayed on the input display means. 9. The production planning assisting means includes: a sequence code specifying one or more lines each registered in the line standard table and the line development pattern table; and a subsequent sequence code. Based on, the calculation of the tact initial value for each production line for each series, and among the series following the parallel series, if there is a common line following the parallel series, each of the parallel In the series line, the start date and the start time of the input tact of the subsequent series are respectively calculated, and among the date and time of the start date and the start time of the calculated input tact,
7. A production plan drafting value corresponding to a parallel series by calculating a tact initial value for each serial number and a line subsequent to the subsequent series by adopting slow data. 8. A production planning system for tact production according to any one of 8.