JPS61139142A - Data gathering system - Google Patents

Abstract

PURPOSE:To shorten the data transmission time between each terminal machine and file control parts, and to improve the data processing efficiency by connecting individual file control parts with private lines and providing a change over switch circuit which switches and connects lines when abnormality occurs. CONSTITUTION:If the abnormal state occurs in the first file control part 1 by some factor to make the information transmission/reception between the first file control part 1 and each terminal machine 4 impossible, an indicator lamp or the like indicating the occurrence of the abnormal state is lit on each terminal machine 4 or the first file control part 1, and the operator who operates this system makes an external switch. When the external switch is made, respective common terminals C of switching contacts 16-21 of a changeover switch circuit 3 are switched and connected to normally open terminals (b). As the result, a main circuit 2 connected to each terminal machine 4 is switched from a main circuit 2a of the first file control part 1 and is connected to a main circuit 2b of the second file control part 7.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides data that is aggregated and registered in a data file provided in a storage unit of a file control unit connected via a data line. The present invention relates to a data collection system, and particularly relates to a data collection system including a second file control unit that protects data sent from each terminal when an abnormality occurs in the file control unit.

[Prior Art] For example, in department stores and large-scale supermarkets, electronic cash registers serving as multiple terminals installed at each sales floor are connected to a file control unit via a data line, and sales products generated at each sales floor are processed. Product information such as unit price per item name is sent to the file control section, and sales data such as product code, sales amount, number of sales items, etc. of the sold products are aggregated in the data file provided in the storage section of the file control section. A registered POS (point of sale) system has been adopted.

In such a data collection system, if any abnormality occurs in the file control unit, it becomes impossible to send the delivery and sales data from each terminal, causing a serious hindrance to business operations. Therefore, in general, in such a data collection system, in addition to the main file control unit that exchanges data with each terminal, an auxiliary file control unit with the same function is connected to the data line. . Then, the normal auxiliary file control section sends a transmission request signal for the storage contents of the data file of the main file control section to the main file III 111 part at regular intervals via this data line, and Copies the stored contents of a data file to its own data file. If any abnormality occurs in the main file control section, the power to the main file control section and the auxiliary file control section is temporarily cut off, and the operation changeover switch between the main file control section and the auxiliary file control section is switched to the auxiliary file control section. Switch the file control so that it becomes the main file control section. After that, l of the auxiliary file system H part! When you input the source, this auxiliary file II
The III@ section operates as the main file control section.

Therefore, data from each terminal is aggregated and registered in the data file of the new main file control section.

[Problems to be Solved by the Invention] However, even in the data collection system configured as described above, the following problems still need to be solved. That is, since the auxiliary file control unit is connected to the data line that connects the main file control unit and each terminal, the auxiliary file control unit 111 sends a request signal to the main file control unit to send the stored contents of the data file. During transmission, and while the main file control unit is transmitting the stored contents of the data file, data may be sent from each terminal to the main file control unit, or data may be sent from the main file control unit to each terminal. Unable to send response signal. Therefore, there is a problem in that the time required for data transmission between each terminal and the main file control section increases, resulting in a decrease in data processing efficiency in each terminal.

In addition, since the data file of the auxiliary file control section is rewritten with the contents of the data file of the main file control section at regular intervals as described above, the auxiliary file 1IJI11
The contents of the data file of the main file control section are always delayed by a fixed period compared to the contents of the data file of the main file control section. Therefore, when an abnormal situation occurs in the main file control section and the auxiliary file control section switches to the main file control section, there is a problem in that an error occurs in the stored contents of the data file.

The present invention was made based on the above circumstances, and its purpose is to connect each file control unit with a dedicated line and to provide a changeover switch circuit that switches and connects the line when an abnormality occurs. By doing so, it is possible to shorten the data transmission time between each terminal and the file control unit, improve the data processing efficiency of each terminal, and even if an error occurs, the data from each terminal can be accurately converted to a data file. The objective is to provide a data collection system that can be aggregated and registered.

[Means for Solving the Problems] The data collection system of the present invention is connected via a main line to a plurality of terminals into which data is input, receives data transmitted from each terminal, and stores the data in a storage unit. A second file controller having a second data file is transmitted via an auxiliary line to a first file control unit which is aggregated and registered in a first data file provided in a first file controller.
The File III leg of the Wi2 is connected, and the file control unit of this Wi2 receives data from each terminal input to the first file control unit, and aggregates and registers it in the second data file. between the machine and the first and second file control units, when an abnormality occurs in the first file control unit, the main line is connected to the first 7? A changeover switch circuit is inserted to connect the file III control section to the second file control section.

In another invention, the plurality of terminals are divided into a first terminal group and a second terminal group, and the first and second terminal groups are connected to the first main line and the second terminal group, respectively. connecting first and second file control units having a first data file and a second data file via a main line;
Data sent from the first and second terminal groups are stored in the first and second file systems, respectively! The first section aggregates the data into the first and second data files, and the data from the first terminal group input to the first file control section is sent to the second file control section via the auxiliary line. Second
The data from the second terminal group input into the second file ill 111 is aggregated and registered in the data file of the second file ill.
Register the total to the data file. Then, when an abnormality occurs in either one of the first and second file control units, a file that has occurred in an abnormality is stored between the first and second terminal groups and the first and second file control units. A changeover switch circuit is inserted to switch and connect the main line of the terminal group of the control section to the other file control section.

[Function] With the data collection system configured as described above, during normal operation, data sent from each terminal is sent to the first file controller via the main line every time the data is sent. At the same time, the data are registered in aggregation in one data file, and are also aggregated and registered in a second data file of a second file control section from the first file control section via an auxiliary line. Then, when an abnormality occurs in the first file control section, the main line connected to each terminal can be switched and connected from the first file control section to the second file control section using the changeover switch circuit.

In another invention, the first and second
Data transmitted from each terminal in the terminal group is aggregated and registered in each data file of the first and second file control units via each main line each time data is transmitted, and is also transmitted via an auxiliary line. The data are aggregated and registered in each data file of the second and first file control units. And the first
When an abnormality occurs in one of the second file control sections, the changeover switch circuit can switch and connect the main line of the terminal group of the file control section in which the abnormality has occurred to the other file tillll1.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a data collection system according to an embodiment, and numeral 1 in the figure is a first file control unit that processes data transmitted from each terminal during normal operation. This first file control unit 1 includes a main line 2a, a changeover switch circuit 3.
A plurality of terminals 4 are connected in a closed loop via the main line 2. In addition, the first file control unit 1 includes each terminal 4.
A first data file 5 composed of, for example, a magnetic disk recording device for aggregating and registering data sent from
is provided.

Further, a second file control section 7 having the same functions as the first file control section 1 is connected to the first file control section 1 via an auxiliary line 6.

This second file control section 7 is provided with a second data aisle 8 having the same configuration as the first data file 5 of the first file control section 1. Furthermore, the second file control section 7 is connected to the changeover switch via the main circuit 1!2b in order to receive data transmitted from each terminal 4 when an abnormality 1B occurs in the first file control section]. Circuit 3 is connected.

Each of the terminals va4 is composed of, for example, an electronic cash register placed in each sales floor, and stores the product code of the sold product. 2 to the first file control unit 1 as a set-up data, and also to aggregate and register sales data such as the number of sold products and the sales amount in the first data file 5. Send to file control unit 1.

The first file till 8 part 1 is configured as shown in FIG. 2, for example. That is, 9 in the figure is a CPU (central processing unit) that executes various information processing,
This CPIJ9 has a ROM 11 that stores fixed data such as various control programs, and a RAM that temporarily stores various variable data such as data transmitted from each terminal N4 via a path line 10 consisting of a data bus and an address bus.
I 2. m&! The first device consists of a magnetic disk recording device.
A disk control circuit 13. controls the data file 5 of the disk.
iiJ Main line control circuit 14 connected to the main line 2a.
and auxiliary line charge company circuit 1 connected to auxiliary line 6
Control the 5th grade.

Stored in the first data file 5 are product information such as unit price and product name for each product code of each product sold at each terminal R4, and sales data such as the number of sales items and sales amount.

Note that the second file control section 7 has almost the same configuration as the first file control section.

The changeover switch circuit 3 is composed of a relay having six changeover contacts 16, 17, 18, 19, 20°21 as shown in FIG. Each common terminal C of contacts 16 to 21 is switched and connected from normally closed terminal a to normally closed terminal S. The two main lines 2a from the first file tiIIwJ part 1 are connected to the respective common terminals C of the switching contacts 16 and 19, respectively, and the second
The two main lines 2b from the file control section are connected to respective common terminals C of switching contacts 20 and 21, respectively.

Further, the main line 2 connected to each terminal 4 is connected to each common terminal C of the switching contacts 17 and 18, respectively.

The normally open terminals of switching contacts 17 and 20 and switching terminals 18 and 21 are connected together.

The normally closed terminals a of switching contacts 16 and 17 and switching contacts 19 and 18 are connected to each other.
The normally open terminals A and 19 and the normally closed terminals a of the switching contacts 20 and 21 are short-circuited.

Therefore, under normal conditions when the external switch is not turned on, the main line 2 to which each terminal 4 is connected is connected to the first file control section 1 via the changeover switch circuit 3, and when the external switch is turned on, , the main line 2 is connected to a second file control section 7 via a changeover switch circuit 3.

Thus, under normal conditions, the CPU 9 of the first file control section 1 is configured to execute data processing according to the flowchart shown in FIG.

That is, when the power is turned on, a polling signal is sent to each terminal 4 via the main lines 2a, 2 at regular intervals to instruct the terminal 4 to start transmitting data. When a data signal is input from the corresponding terminal 4 to the main line control circuit 14, the type of the input data is checked. Then, if the data is make-up data for product information of a sales product, the first data file 5 is searched using the product code included in this make-up data, and product information such as the unit price and product name of the corresponding product code is obtained. Read out main line 2a, changeover switch circuit 3. A reply is sent to the corresponding terminal 4 via the main line 2.

If the data input to the main line control circuit 14 is data such as sales data that requires updating the registered contents of the first data file 5, the number of sales items and sales amount of the corresponding product in the first data file 5 is updated. Update.

When the update processing for the first data file 5 is completed, the input sales data is transmitted to the second file control section 7 via the auxiliary line 6, and the data processing for the input data is completed.

Further, when the second file control section 7 receives the aforementioned sales data from the first file tomorrow section 1 via the auxiliary line 6, the second file control section 7 uses this sales data to create a second data file 8.
Update the number of sales and sales amount for the corresponding product. As a result, the storage contents of the second data file 8 are always equal to the storage contents of the first data file 5.

In such a state, an abnormal situation occurs in the first file control unit 1 due to some factor, and the first file control unit 1 and each terminal 41! When it becomes impossible to send and receive information on I, each terminal! ! 14 or the first file control unit 1, for example, a display lamp or the like is lit to indicate the occurrence of an abnormal situation, and the operator operating this system turns on the external switch described above. When the external switch is turned on, the common terminals C of the switching contacts 16 to 21 of the changeover switch circuit 3 shown in FIG. 3 are connected to the normally open terminals. As a result, each terminal l
114 is connected to the main line 2a of the first file control unit 1 to the main line 2 of the second file control unit 7.
b.

Since the second file control unit 7 has the same function as the first file control unit 1, each data generated in each terminal 4 is transmitted to the second file 1blt11 unit 7, and this The data processing shown in FIG. 4 is executed by the file control unit 7 of No. 2. As a result, each piece of sales data is aggregated and registered in the second data file 8. In this second data file 8, the sales data from each terminal 4 until an abnormality occurs in the first file control unit 1 is registered, so the correct data continues even after the abnormality 18 occurs. The data will be counted and registered.

Note that when the first file control section 1 is in an abnormal state, the second file control section 1
Sales data is never transferred from the file control section 7 of the first file control section 7 to the first file control section 1 via the auxiliary port 1i16.

With the data collection system configured in this way, during normal times, the Hanutai data is transmitted from the first file control unit 1 to the second file control unit 7 via the auxiliary line 6, so that the sales Once by sending data 1i2.
2a and 2b are not particularly exclusive. therefore,
The time required for data transmission between each terminal 114 and the first file control unit 1 can be reduced, and as a result, each terminal! l! 4
Data processing efficiency can be improved.

Furthermore, since the second data file 8 is updated to have the same content as the first data file every time the content of the first data file 5 is updated, the first file control unit 1
Even if an abnormal situation occurs and the second file control unit 7 directly receives data from each terminal 1114 and starts updating the second data file 8, an error will occur in the stored contents of the second data file. Never.

FIG. 6 is a block diagram showing a data collection system according to another embodiment of the present invention, in which the same parts as those in FIG.

In the system of this embodiment, a plurality of terminals 4 are divided into two terminal groups, a first terminal group 31 and a second terminal group 32, and each terminal group 31, 32 is First and second main lines 33a, 33b.

The changeover switch circuit 34 is connected to the first and second file control units 1.7, respectively, via the changeover switch circuits 112a and 2b.

As shown in FIG. 7, the changeover switch circuit 34 of this embodiment has six changeover contacts 35 each having four terminals: a common terminal C, a normally open terminal a, and two normally open terminals d and e. .3
It consists of 6.37.38.39.40. Each of the switching contacts 35 to 40 is incorporated into one relay, and by operating an external switch (not shown) in the same way as in FIG. It is selectively connected to terminal d or e.

Each main line 2a from the first file control unit 1 is connected to the normally closed terminal aF3 of the switching contact 35 and the common terminal C of the switching contact 39, and each main line 2b from the second file control unit 7 is connected to the normally closed terminal aF3 of the switching contact 35 and the common terminal C of the switching contact 39, respectively. It is connected to the common terminal C of the switching contact 40 and the normally closed terminal a of the switching contact 38. Further, the first main line 33a of the first terminal group 31 is connected to the switching contact 35.
．． 36 common terminals C, and the second terminal group 32
The second main line 33b is connected to each common terminal C of the switching contacts 37, 38.

Further, the normally open terminals e of the switching contacts 35, 40 are connected together, and the normally open terminals d of the switching contacts 38, 39 are connected together. Roughly speaking, the four normally open terminals e and d of the switching contacts 36 and 37 are short-circuited to each other, and the normally closed terminals a and normally open terminals d of the switching contacts 35 and the normally closed terminals a and normally open terminals of the switching contacts 38 are short-circuited. It is short-circuited with terminal d. In addition, the switching contact 39.
Each of the 40 normally open terminals d is open.

When the aforementioned external switch is not operated in the changeover switch circuit 34 configured as described above, the first main line 33a of the first terminal group 31 is connected to the changeover switch circuit 34. The second main circuit 33b of the second terminal group 32 is connected to the first file control unit 1 via the main circuit 2a, and the changeover switch circuit 34. It is connected to the second file control section 7 via the main circuit 2b. Then, when the external switch is turned on to the normally open terminal d side, each main line 2b of the second file control section 7 is opened, and the first file control section 1
Each terminal v/A4'tfi of the first terminal group 31 and the second terminal group 32 is connected to the first and second main lines 33a, 3.
3b, connected to the leap loop via the main line 2a. On the other hand, when the external switch is turned on to the normally open terminal e side, each main line 2a of the first file control unit 1 is opened, and each terminal 4 of the first and second terminal groups 31 and 32 is opened. is the first
It is also connected to the second file control section 7 via second main lines 33a, 33b and main line 2b.

However, under normal conditions, the external switch is not turned on to either side, so the first terminal group 31
The data transmitted from each terminal 114 of the second terminal group 32 is input to the first file control unit 1, and
The data sent from 4 is stored in the second file ill tl
The information is input to part 1 7. Then, the first file control unit 1
The input data is processed in this first file control unit 1, and the necessary data is stored in the first data file 5.
At the same time, the data are aggregated and registered in the auxiliary line 6 and transmitted to the second file control unit 7 . The second file control unit 7 aggregates and registers the received data from the first terminal group 31 in a second data file. On the other hand, the data transmitted from each terminal 4 of the second terminal group 32 is first processed by the second file control unit 7, aggregated and registered in the second data file 8, and then transferred to the auxiliary line 6. is sent to the first file control unit 1 via the first data file 5.
Aggregation is registered to . In this way, under normal conditions, the data transmitted from each terminal 4 is registered equally in the first and second data files 5 and 8.

Therefore, the stored contents of the first data file 5.degree. 3 and the second data file 5.8 are always the same.

If an abnormal situation occurs in the first file control section 1 in such a state, the operator turns on the above-mentioned external switch to the normally open terminal e side. Then, each terminal 4 of the first and second terminal groups 31 and 32 is connected to the second file control section 7 via the changeover switch circuit 34. Therefore, all data transmitted from each terminal 4 from now on is input to the second file control section 7, and after being data processed by this second file control section 7, it is transferred to the second data file 8. The total is registered. Therefore, correct data will continue to be aggregated and registered in the second data aisle 8.

Furthermore, when an abnormal situation occurs in the second file control unit 7, when the external switch is turned to the normally open terminal d side, correct data will continue to be aggregated and registered in the data file 5 of the first file control unit 1. .

In this way, even if an abnormal situation occurs in either the first or second file control unit 1.7, correct data will be aggregated and registered in the data file of the other file control unit. , it is possible to obtain the same effects as the above-mentioned embodiments.

Roughly speaking, in this example, the first r! 3 and the second file control unit 1.7 via the first and second main lines 33a and 33b, respectively.
1.32 is connected, each file control section 1.7 can be used efficiently during normal operation. As a result, the data processing efficiency of each terminal 4 can be greatly improved.

[Effects of the Invention] As described above, according to the present invention, a changeover switch circuit is provided that connects each file control unit with a dedicated auxiliary line and switches and connects the line when an abnormality occurs. Therefore, data transmission time between each terminal and the file control unit can be shortened, data processing efficiency at each terminal can be improved, and even if an error occurs, data from each terminal can be accurately aggregated into a data file. You can register,
The reliability of the entire system can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a data collection system according to an embodiment of the present invention, FIG. 2 is a block diagram showing a first file control section of the embodiment, and FIG. 3 is a changeover switch circuit of the embodiment. FIG. 4 and FIG. 5 are flowcharts showing the operation of the same embodiment, FIG. 6 is a block diagram showing a data collection system according to another embodiment of the present invention, and FIG. 7 is a flowchart showing the operation of the same embodiment. FIG. 3 is a circuit diagram showing a changeover switch circuit. 1... first file control unit, 2.2a, 2b...
Main line, 3, 34... Changeover switch circuit, 4... Terminal, 5... First data file, 6... Auxiliary line, 7... Second file control unit, 8... ... second data file, 9... CPLI, 31... first terminal group, 32... second terminal group, 33a... first
33b...Second main line, a...Normally closed terminal, b, cl, e...Normally open terminal, C...Common terminal. Applicant's agent Patent attorney Takehiko Suzue Figure 1! Figure 2 Figure 3 Figure 4 Figure 5

Claims (2)

[Claims] (1) A plurality of terminals into which data is input, and first data connected to each of these terminals via a main line and stored in a storage unit by receiving data transmitted from each of the terminals. a first file control unit that performs aggregation registration in a file; and a first file control unit connected to the first file control unit via an auxiliary line;
a second file control unit that receives data from each of the terminals inputted to the first file control unit and aggregates and registers the data in a second data file provided in a storage unit; The main line is inserted between the first and second file control units, and switches the main line from the first file control unit to the second file control unit when an abnormality occurs in the first file control unit. A data collection system characterized by comprising a changeover switch circuit for connection. (2) a plurality of terminals consisting of a first and second terminal group into which data is input; and a first terminal connected to the first terminal group via a first main line; a first file control unit that receives data transmitted from each terminal in the group and totalizes and registers the data in a first data file provided in a storage unit; and a second main line for the second terminal group; a second file control unit connected via the second terminal group to receive data transmitted from each terminal of the second terminal group and aggregate and register the data in a second data file provided in the storage unit; an auxiliary line connecting the first and second file control units; and data from the first terminal group input to the first file control unit are transmitted to the second file control unit via the auxiliary line. The second data inputted into the second file control section while being aggregated and registered in the second data file of the section.
means for aggregating and registering data from a group of terminals in the first data file of the first file control unit via the auxiliary line; A second file control unit is inserted between the second file control units, and when an abnormality occurs in one of the first and second file control units, the main line of the terminal group of the file control unit in which the abnormality has occurred is connected to the other. A data collection system comprising: a changeover switch circuit for switching connection to a file control unit of the data collection system.