JPH11143744A - Data transmission system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data transmission system having a mechanism for maintaining compatibility between the data of a central computer and the data of a local computer even when the local computer temporarily transmits information to the central computer, and then updates the transmitted information. SOLUTION: This system is composed of a central computer 2, a central storage device 6, a local computer 3, and a local storage device 5. Data 7 stored in the local storage device 5 are provided with an event flag for each record, and the data of the record are weighted according to the kind of the event flag. The local computer 3 sums up the weighted data 7 at a certain interval, and transmits it to the central computer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

This invention relates to a central computer,
A central storage device controlled by the central computer; a local computer; and a local storage device controlled by the local computer. Data transmission required to maintain data consistency between the storage devices. About the system.

[0002]

2. Description of the Related Art Conventionally, in many systems including a local computer and a central computer, data inputted to the local computer is processed by the local computer and the result is transmitted to the central computer.

For example, in the case of a production management system for a house exterior wall panel, as shown in FIG. 8, from an input terminal a installed at a production site, production information f such as an operation result f1 of the exterior wall panel and a production result f2 is obtained. Is entered. The input data of the operation results f1 and the production results f2 is sent to the local computer b of the factory. Local computer b
Collects the data of the operation results f1 and the production results f2 collected from the site in this way, and transmits the total result f3 to the central computer c. The central computer c performs management based on the total result f3.

[0004]

However, in the above-mentioned embodiment, in order to maintain consistency between the data of the local computer and the data of the central computer, the contents once transmitted are interlocked so as not to be changed. Often have. Therefore, in order to change, a complicated operation such as releasing the interlock is required.
Therefore, the local computer must take care when sending data to the central computer so that no changes occur. On the other hand, when the interlock is not applied, a problem occurs that the contents changed on the local computer do not match the contents on the central computer.

By the way, in the case of the above-mentioned production system for a house outer wall panel, among the outer wall panels to be produced, a good product g1 that can be shipped as it is and a work-in-progress g2 that needs to be reworked are generated. The work-in-progress product g2 can be shipped as a non-defective product g1 after being subjected to an appropriate retouching process such as filling with putty.

Therefore, when a work-in-progress g2 requiring a reworking process occurs, the local computer b stores the work-in-progress g2 in the production information f until the work-in-process g2 is reworked.
A method is adopted in which the value of is not calculated. Or
Until the rework is completed, the production information f
In many cases, the data is transmitted to the central computer c, and when the rework is completed, the production information f is updated and recorded as a good product g1 and transmitted to the central computer c.

However, the method in which the numerical value of the work-in-progress g2 is not recorded has a problem in that rework management and accounting management of the work-in-progress g2 become complicated. In the method of temporarily recording the production information f as a reserved product g3 until the rework is completed, the production information f of the central computer c is updated in order to maintain data consistency between the central computer c and the local computer b. Requires a complicated operation.

According to the present invention, data having a mechanism for maintaining consistency between data of the central computer and data of the local computer even if the local computer updates the information after the local computer once transmits the information to the central computer. It is an object to provide a transmission system.

[0009]

A data transmission system according to the present invention, which solves the above-mentioned conventional problems, comprises a central computer, a central storage device controlled by the central computer, a local computer, and a local computer. In a system configured with a local storage device, an event flag is provided for each record in the data stored in the local storage device, and the data of the record is weighted according to the type of the event flag. The local computer aggregates the weighted data at regular intervals and transmits the data to the central computer.

The event flag is defined as "addition" for a newly input data record, and "deletion" for a data record to be deleted in response to a new input among existing data records. The value of the attached data record may be weighted with the sign of “+”, and the value of the data record with the event flag of “deletion” may be weighted with the sign of “−”.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a system configuration diagram of an external wall panel production management system to which a data transmission system of the present invention is applied.

The exterior wall panel production management system 1 can be roughly divided into a central computer 2 for centralized management work,
A plurality of local computers 3 arranged at each factory for performing data collection work, a result input terminal 4 installed at each production site, a local storage device 5 for storing information in the local computer 3, and a central computer 2 And a central storage device 6 for accumulating the information in. Production information 7 is transmitted and received between these computers,
It is managed by each of the computers 2 and 3 respectively.

The production information 7 includes an operation result 71, a production result 72, a production result work 73, a tally result 74, production management data 75, and the like, and is information necessary for production management from the production site to central management. .

The flow of the production information 7 between the central computer 2, the local computer 3, and the performance input terminal 4 is as follows.

That is, when the outer wall panels are produced in each factory, first, the operation results 71 and the production results 72 (see FIG. 2)
The data is input from the performance input terminal 4 at the production site for each production unit called a lot 91, and the input data is immediately transmitted to the local computer 3. The local computer 3 tabulates the operation record 71 and the production record 72 of each site transmitted from the record input terminal 4, and transmits a tally result 74 (see FIG. 5) to the central computer 2 on a daily basis. The central computer 2 generates the production management data 75 (see FIG. 6) based on the tallying result 74 transmitted from the local computer 3 of each factory, stores it in the central storage device 6, and uses it for the production management operation. That is.

By the way, non-defective products that can be transported to the next process as they are, and reserved products that need to be partially reworked are generated during production. At the production site, the number 93 of non-defective products and the number 94 of reserved products are input as the production results 72 (see FIG. 2) for each lot 91 and transmitted to the local computer 3. However, since the pending product becomes a non-defective product after the rework is completed, the number of non-defective products 93 and the number of pending products 94 in the production record 72 must be changed. Therefore, a data transmission method in the case where the number of non-defective products 93 and the number of reserved products 94 are changed will be described below with reference to an example of a procedure for totalizing the production results 72. In the following description, the lot 91, the product number 92, the production date and time 95, and the event date and time 97 shown in FIGS. The specific symbol entered in the box shall be used.

First, the production results 72 from the result input terminal 4 to the local computer 3 (see FIG. 2A).
The aggregation procedure will be described. Hereinafter, the description will be given along the counting flowchart shown in FIG.

First, input the newly produced contents,
The procedure changes depending on the content that was previously produced and transmitted. First, a procedure when newly produced contents are input will be described (step S101).

The operator confirms the quantity of non-defective products and reserved products produced for each production site for each lot 91 which is a fixed unit of work, and inputs it to the performance input terminal 4.

As shown in FIG. 2 (A), the operator selects the lot 91 in the item 72A, the product number 92 in the item 72B, the number 93 of non-defective items in the item 72C, and the number 94 of reserved items in the item 72D.
Is input to the item 72E with the production date 95. At this point, since the number of exterior wall panels newly produced at the production site has been input, the transmission flag 96 of the item 72F is set to "add" (step S102).

The production record 72 input from the record input terminal 4 is transmitted to the local computer 3 (step S103).

The local computer 3 stores the transmitted production results 72 in a production result work 73 (see FIG. 4A) in the order in which they were transmitted. The production result work 73 has a lot 91 in an item 73A and an item 73B in an item 73B.
Item number 92, item 73C the number of conforming items 93, item 73D
, The production date and time 95 is stored in the item 73E, the event date and time 97 is stored in the item 73F, and the event type 98 is stored in the item 73G (step S104).

The event date and time 97 is the time when the record of the production record 72 is stored in the production record work 73.
The event type 98 includes the transmission flag 96 of the lot 91 when the production result 72 is received. For example,
At the time of FIG. 2A, the transmission flag 96 of the lot “A1” transmitted from the result input terminal 4 is “addition”, so that the event type 98 is “addition”.

The local computer 3 calculates the number of non-defective products for each product number 92 from the production result work 73 at regular intervals.
3 and the number of reserved items 94 are totaled, and the totaling result 74 shown in FIG. 5A is transmitted to the central computer 2 (step S10).
5). The local computer 3 stores the transmission time 10 at which the data was transmitted to the central computer 2 in the local storage device 5.

The tabulation result 74 indicates that the item number 92 is included in the item 74A,
The item 74B stores a total of non-defective items 99 in which the number of non-defective items 93 for each of the product numbers 92 is totalized, and the item 74C stores a total of non-defective products 910 in which the number of non-defective products 94 for each of the product numbers 92 is totaled. For example, the value of the number 93 of non-defective products whose product number is “B1” in the record (1) of the production result work 73 in FIG. 4A is “9”. Record (2) also has the same product number "B1", and the number of non-defective products is 93
Is “4”. Therefore, the total of non-defective products of the product number “B1” is “13” (= 9 + 4). The same operation is performed for the number of reserved items 94. Therefore, when the production result work 73 in FIG. 4A is totaled, the totaling result 74 in FIG.
Becomes The details of the counting procedure will be described later.

The central computer 2 having received the tallying result 74 generates the production management data 75 from the received tallying result 74.
(See FIG. 6) and store it in the central storage device 6 (step S106). For example, assuming that the central computer 2 has not received anything first and has received the tallying result 74 of FIG. , The non-defective product total 99 and the pending product total 910 of the total result 74 received respectively.
Will be entered. That is, the state shown in FIG.

Next, a description will be given of a processing procedure when the content of the lot 91 once transmitted to the local computer 3 is changed (step S101) and the changed content is input.

Here, the rework of the reserved product is completed, and FIG.
An example will be described in which the value “1” of the number of reserved items 94 in the record with the lot “A1” in (A) is changed to “0”.

The operator changes the contents of the record (1) in which the lot in the production record 72 is “A1”.
As shown in (B), the transmission flag 96 of the record (1) of the production record 72 previously transmitted is changed from "add" to "delete" (step S112).

The result input terminal 4 is used for the changed production result 7
2 (FIG. 2B) is transmitted to the local computer 3 (step S113).

The operator renews the contents of the lot “A1” from the production result terminal 4 and
2 (step S114). In this case, FIG.
As shown in (C), the lot of production record 72 is “A1”.
, The value “1” of the number 94 of reserved items becomes “0”, and the value “9” of the number 93 of non-defective products becomes “10”. Since this is an updated new content, the transmission flag 96 is “added”.
become.

The production record terminal 4 transmits the updated production record 72 to the local computer 3 (step S115).

The local computer 3 saves the production results 72 in the production result work 73 in the order of reception in the same manner as described in the new procedure (step S10).
4). However, irrespective of the “add” or “delete” of the transmission flag 96 of the production record 72, the contents of the record stored before the production record work 73 are not changed at all, and the record Save the contents of. That is, the record (1) of the transmission result 72 at the stage of FIG. 2B is stored in the record (4) of the production result work 73, and the transmission flag 96 is “delete”, so the event type 97 is “delete”. Becomes Then, the transmission result 7 containing the update content of the stage of FIG.
In the record (1) of No. 2, the updated contents are stored in the record (5) next to the record (4) in the production result work 73 which contains the contents of the previous deletion. Since the transmission flag is “added”, the event type 97 is “added”.

As described above, when the transmitted content is changed, two records of the old content before the change and the new content after the change are stored in the production result work 73. .

Next, the production result work 73 stored in the local computer 3 is totaled for each product number 92.
The details of the procedure for transmitting the aggregation result 74 to the central computer 2 will be described with reference to the flowchart shown in FIG.

The local computer 3 stores the transmission time 10 at which the total result 74 was transmitted to the central computer 2 in the local storage device 5 as described above (step S105). Therefore, as a totaling procedure, first, the local computer 3 compares the event date and time 97 of the production result work 73 with the previous transmission time 10 and extracts the record whose time is later than the transmission time 10 by the event date and time 97 ( Step S201). Here, the case where the production result work 73 is in the state of FIG. 4C and the transmission time 10 is a time after the event date and time “F3” is taken as an example. In this case, only the record (4) and the record (5) are extracted.

Next, the local computer 3 assigns the number of conforming items 93 and the number of reserved items 94 of the record extracted in the previous step (step S201) from the production result work 73 according to the event type 98 as follows. That is, “+” is added to a record whose event type 98 is “added”.
Is added to the number of non-defective products 93 and the number of reserved products 94, respectively, for records of which the event type 98 is “deleted” (step S202). However, if the number is “0”, no sign is added. In the case of the previous example, in the extracted record (4) of the production result work 73 in FIG. 4C, since the event type 98 is “deleted”, the value “9” of the number 93 of conforming products is “−9”. , The value “1” of the number of reserved items 94 is “−1”.
Since the event type 98 of the record (5) is “addition”, the value “10” of the number of good products 93 is “+10” and the number of pending products is 9
The value "0" of 4 remains unchanged.

Next, the local computer 3 tabulates the number 93 of non-defective products and the number 94 of reserved products for each product number 92 to obtain a total of non-defective products 99 and a total of reserved products 910 (step S203). In the case of the above example, the extracted record (4) and record (5) of the production result work 73 in FIG. 4C each have the product number “B1”. This is the sum of the signed numbers of the records. That is, the non-defective product total 99 is “1” (= −9 + 10). The pending product total 910 becomes “−1” (= −1 + 0). As shown in FIG. 5B, the item 74 of the tally result 74
A is the product number 92, and item 74B is the value "1" of the total non-defective product 99.
However, the value “−1” of the total reserved items 910 is stored in the item 74C.

Next, the local computer 3 calculates the totaling result 7
4 is transmitted to the central computer 2, and the transmission time 10 is stored in the local storage device 5 (step S204). In the case of the above example, the data of the transmission result 74 in FIG. 5B is transmitted to the central computer 2.

The central computer 2 receives the totaled result 7
4 is added to the production management data 75 (step S
205). In the case of the above example, FIG. 6A shows the production management data 75 totaled up to the previous reception. This time, Figure 5
Since the totaling result 74 of (B) is received, an operation occurs for the product number “B1” of the production management data 75 record (1). In other words, the value “13” of the total non-defective products 911 is
"14" which newly added the value "1" of the non-defective product 99 of (B)
(= 13 + 1) becomes the value of the new non-defective product total 911.
Similarly, “1” (= 2 +) is obtained by adding the value “−1” of the total number of reserved items 910 in FIG.
(-1)) becomes a value of the total new reserved product 912. That is, it is updated to the production management data 75 of FIG.

As described above, when data is input at the record input terminal 4, the transmission flag 96 is provided for each record,
By clarifying the type of the input record,
Subsequent processing in the local computer 3 and the central computer 2 does not cause confusion. In addition, the local computer 3 is provided with a production result work 73 that stocks all the received production results 72 in the order in which they are received, and manages the receiving order by the event date and time 97, thereby making it possible to clarify the new and old data. . The local computer 3 stores the transmission time 10 at which the tally result 74 was transmitted to the central computer 2 so that the event date and time 97
By comparing the data with the transmission time 10, it is possible to prevent the data from being tampered with or omitted.

Based on the “addition” and “deletion” of the transmission flag 96, the values of the number of non-defective products 93 and the number of reserved products 94 are coded and processed, so that the data once transmitted is Also, data can be changed by simple processing of "deletion" and "addition" while maintaining consistency between the central computer 2 and the local computer 3.

It should be noted that the data transmission system is not limited to the outer wall panel production management, but may be used for production management of other things or data management.

[0045]

By using the data transmission system of the present invention, even if the operator changes the data of one computer among a plurality of computers, the data consistency between the other computer is always maintained. Can be. In addition, when data is changed, by changing the value of each data with a sign, a change operation can be performed by a simple two-stage process of “deletion” and “addition”. Therefore, data can be easily changed, so that data management can always be performed with accurate data in real time.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an outer wall panel production management system to which a data transmission system of the present invention is applied.

FIG. 2 is a structural diagram of a production result file.

FIG. 3 is a flowchart illustrating a procedure for totalizing production performance data.

FIG. 4 is a structural diagram of a production result work file.

FIG. 5 is a structural diagram of a tally result file.

FIG. 6 is a structural diagram of a production management data file.

FIG. 7 is a flowchart illustrating details of a procedure for creating a tally result.

FIG. 8 is a system configuration diagram of a conventional exterior wall panel production system.

[Explanation of symbols]

Reference Signs List 1 outer wall panel production management system (data transmission system) 2 central computer 3 local computer 4 result input terminal (local computer) 5 local storage device 6 central storage device 7 production information (data) 71 operation result 72 production result 73 production result work 74 Tabulation result 75 Production management data 9 Data record 91 Lot (Record data) 92 Product number (Record data) 93 Number of conforming products (Record data) 94 Number of reserved products (Record data) 95 Production date and time (Record data) 96 Transmission flag (Event flag) 97 Event date and time (Record data) 98 Event type (Event flag) 99 Non-defective items (Record data) 910 Non-defective items (Record data) 911 Non-defective items (Record data) 912 Total non-defective items Total (record data)

Claims (2)

[Claims] 1. A system comprising a central computer, a central storage device controlled by the central computer, a local computer, and a local storage device controlled by the local computer. The event data is provided with an event flag for each record, and the data of the record is weighted according to the type of the event flag, and the local computer counts the weighted data at regular intervals, and sends the weighted data to the central computer. A data transmission system characterized by transmitting. 2. The event flag according to claim 1, wherein the newly entered data record is "added", and among the existing data records, the data record to be deleted corresponding to the newly entered data is "deleted". 2. The value of a data record marked with "+" is weighted, and the value of a data record marked with an event flag of "deletion" is weighted with a sign "-". Data transmission system.