JP7291365B2 - Information system - Google Patents

Description

The present invention relates to an information system comprising a server and terminal devices for remotely monitoring data in an external device.

Conventionally, in a communication method in which message push distribution is performed using a web socket protocol between a server device and a communication terminal device, the work involved in developing a push communication system that provides immediate services is reduced. There is a communication method (see Patent Document 1, for example).

In this communication, a signal for maintaining WebSocket connection is periodically transmitted from the communication terminal device to the server device. The communication terminal device identifies the connection maintenance interval of the mobile phone communication carrier currently used by the user and the connection maintenance interval of the cloud platform based on the usage network configuration information, and establishes connection with at least the identified mobile phone communication carrier. The communication connection with the server device is established using the maintenance interval and the connection maintenance interval of the cloud base as fixed information that does not need to be rewritten. However, in the above-described conventional communication method, there is a problem that the processing is complicated in both the server device and the terminal device, and the processing load increases.

JP 2014-053732 A

SUMMARY OF THE INVENTION It is an object of the present invention to provide an information system that is simpler and has less processing load than conventional communication methods.

The present invention has been made to solve at least part of the above problems, and can be implemented as the following application examples. In addition, the reference numerals in parentheses and supplementary explanations in this column indicate the correspondence with the embodiments described later in order to help the understanding of the present invention, and do not limit the present invention in any way. .

[Application example 1]
An information system (1) according to the present invention includes:
A server (10) that inputs and outputs to an external device (3) and transmits and receives signals and data via a communication line (5);
a terminal device (20) that transmits and receives data to and from the server (10) via the communication line (5);
with
The server (10)
a first input unit (12) for inputting signals and text data from the external device (3);
The content of the signal input by the first input unit (12) is converted into a data format processable by the terminal device (20) and push-transmitted to the terminal device (20) via the communication line, or , a first output unit (14) for push-transmitting the changed text data to the terminal device (20) via the communication line (5);
with
The terminal device (20)
a second input unit (22) for push-receiving the text data and the signal converted into a data format processable by the terminal device (20) from the server (10) via the communication line (5); ,
When at least one of the text data input by the second input unit (22) and the signal converted into a data format processable by the terminal device is changed, the changed text data and the signal a display unit (26) that displays at least one of the
The gist is that it has

In such an information system (1), at least one of a signal and text data is input from an external device (3) to the server (10) by the first input unit (12), and the input signal or When the text data is changed, the content of the changed signal is converted by the first output unit (14) into a data format that can be processed by the terminal device (20) and sent to the terminal device (20) via the communication line (20). Alternatively, the text data is output to the terminal device (20) through the communication line (5) by push communication. In addition, in the terminal device (20), at least one of a signal and text data converted into a data format processable by the terminal device (20), which is input from the communication line (5) by the second input unit (22) If one of them changes, at least one of the changed text data and the signal is displayed in tabular form by the display unit (26).

In other words, the data input from the external device (3) to the server (10) is at least one of signal and text data, and the server (10) receives the input and can be processed by the terminal device (20). Only when at least one of the signal or text data converted into a data format that has been changed is changed, at least one of the changed signal or text data that has been converted into a data format that can be processed by the terminal device (20) , and output via the communication line (5), it can be realized with a very simple configuration and low-load processing.

Therefore, the server (10) can be miniaturized and can be housed in the external device (3). Furthermore, the terminal device (20) inputs at least one of the signal and the text data, and displays the changed text data in a tabular format on the display device only when one of them changes. The device (20) can be realized with a simple configuration and low load processing.

In addition, since the terminal device (20) needs to perform push reception only when the server (10) transmits at least one of a signal and text data by push communication, the server (10) and the terminal device (20) It is possible to reduce the processing load on the server and enable quick communication.

1 is a block diagram showing a schematic configuration of an information system; FIG. 4 is a flow chart showing the flow of processing executed by a server; 6 is a flowchart showing the flow of push reception processing executed by the terminal device; 6 is a flowchart showing the flow of push transmission processing executed by the terminal device;

The "embodiment of the invention" described below indicates an example of the embodiment. In other words, the matters specifying the invention described in the claims are not limited to the specific means, structures, etc. shown in the following embodiments.

Moreover, at least one of the members or portions described with reference numerals is provided, unless otherwise specified as "plurality" or "two or more". Embodiments of the present invention will be described below with reference to the drawings.

(Information system configuration)
The configuration of the information system 1 will be described based on FIG. FIG. 1 is a block diagram showing a schematic configuration of an information system 1. As shown in FIG.

As shown in FIG. 1, the information system 1 includes a server 10 and terminal devices 20 .
The server 10 is a device that performs input/output with respect to the external device 3 and also transmits and receives data via the communication line 5 .

Since an Internet line is used as the communication line 5 in this embodiment, the communication line 5 is also referred to as the Internet 5 hereinafter. The external devices 3 include machine tools such as machining centers, presses, 3D printers, etc. used mainly in factories and laboratories, and office equipment such as printers used mainly in offices.

The server 10 includes a CPU, a ROM, a RAM, an external mechanical device, a first input section 12 and a first output section 14 (not shown).
The first input unit 12 is a part for inputting text data from the external device 3, and the first output unit 14 outputs the text data input by the first input unit 12 to the terminal device 20 via the Internet 5. This is the part to do.

Also, the first output unit 14 pushes the text data to the terminal device 20 via the Internet 5 . In this embodiment, push transmissions are performed by the WebSocket protocol.

The terminal device 20 is a device that transmits and receives data to and from the server 10 via the Internet 5, and includes a CPU, a ROM, a RAM, an external mechanism device, a second input section 22, a second output section 24, and a display section 26 (not shown). It has

The second input section 22 is a section for receiving and inputting text data transmitted from the server 10 via the Internet 5 by push. In this embodiment, push reception is performed by the WebSocket protocol.

The second output unit 24 pushes data from the terminal device 20 (data for various settings of the server 10 and various commands to the external device 3 ) to the server 10 .

The display unit 26 is a part that displays the text data input by the second input unit 22 in tabular format, and includes a display and a processing device for display processing. In this embodiment, the CSV format or MICROSOFT EXCEL (registered trademark) data format is used as the format of the text data displayed on the display unit 26 .

(Processing in server)
Processing executed by the server 10 will be described with reference to FIG. FIG. 2 is a flow chart showing the flow of processing executed by the server 10. As shown in FIG.

The CPU of the server 10 starts the processing shown in FIG. 2 when the power of the server 10 is turned on. As shown in FIG. It is determined whether or not the acquired signal has changed.

When it is determined that the signal has changed (S105: Yes), the process proceeds to S110, and when it is determined that the signal has not changed (S105: No), the process proceeds to S115.

In S<b>110 , the content of the signal acquired in S<b>100 is converted into a data format that can be processed by the terminal device 20 and push-transmitted to the terminal device 20 .
In S115, text data is acquired from the external device 3, and in subsequent S120, it is determined whether or not the text data acquired in S115 has changed.

When it is determined that the text data has changed (S120: Yes), the process proceeds to S125, and when it is determined that the text data has not changed (S120: No), the process proceeds to S130.

At S<b>125 , the text data acquired at S<b>115 is push-transmitted to the terminal device 20 .

At S130, the text data transmitted from the terminal device 20 is acquired by push reception, and at S135, after outputting the text data acquired at S130 to the external device 3, the process returns to S100, and the process at the server 10 is resumed. continue.
It should be noted that the processing in the server 10 ends when the server 10 is powered off.

(Push reception processing on the terminal device)
Next, based on FIG. 3, the push reception process executed by the terminal device 20 will be described. FIG. 3 is a flowchart showing the flow of push reception processing executed by the terminal device 20. As shown in FIG.

The CPU of the terminal device 20 starts the push reception processing shown in FIG. 3 by interrupt processing of the terminal device 20. As shown in FIG. do.

In subsequent S205, push reception is performed to acquire the signal and text data from the server 10. In subsequent S210, it is determined whether or not the signal and text data acquired in S205 have changed.

If it is determined that the data has changed (S210: Yes), the process proceeds to S215, and if it is determined that the data has not changed (S215: No), the process ends.
At S215, the data is changed and displayed in tabular form, and then the process ends.

(Push transmission processing on the terminal device)
Next, based on FIG. 4, the push transmission process executed by the terminal device 20 will be described. FIG. 4 is a flowchart showing the flow of push transmission processing executed by the terminal device 20. As shown in FIG.

The CPU of the terminal device 20 starts push transmission processing shown in FIG. 4 by interrupt processing of the terminal device 20. As shown in FIG. Gets the details of the operation performed by

In subsequent S305, it is determined whether or not there was an operation in S300, in other words, whether or not there was a change in the content acquired in S300. If it is determined that there has been an operation (S305: Yes), the process proceeds to S310, and if it is determined that there has been no operation (S305: No), the process ends.

In S310, after outputting the operation content obtained in S300 to the server 10 by push transmission, the process ends.

(Characteristics of information systems)
In the information system 1 described above, text data is input from the external device 3 to the server 10 , and the input text data is sent to the terminal device 20 via the Internet 5 . Also, in the terminal device 20, the text data input from the Internet 5 is displayed on the display unit 26 in tabular form.

In other words, the data input from the external device 3 to the server 10 is text data, and the server 10 only needs to output the input text data via the Internet 5, so the configuration is very simple. It can be realized by processing. Therefore, the server 10 can be miniaturized and can be housed in the external device 3 .

Furthermore, the terminal device 20 can be realized with a simple configuration and processing because text data can be input and displayed on the display device in a tabular format.
In addition, since it is sufficient for the terminal device 20 to perform push reception only when the server 10 transmits text data by push communication, the processing load on the server 10 and the terminal device 20 can be reduced, and rapid communication becomes possible. .

[Other embodiments]
(1) In the above embodiment, the processing in the server 10 was performed by polling, but it may be performed by interrupt processing.

(2) In the above embodiment, the processing in the terminal device 20 was performed by interrupt processing, but it may be performed by polling.

(3) In the above embodiment, push transmission and push reception in the server 10 and the terminal device 20 are performed by the web socket protocol, but they may be performed by long polling.

(4) In the above embodiment, the Internet is used as the communication line 5, but other communication lines such as an in-house LAN may be used.
Moreover, the present invention is not limited to the above-described embodiments as long as it conforms to the gist of the invention described in the claims.

1... Information system 3... External device 5... Internet (communication line) 10... Server 12... First input unit 14... First output unit 20... Terminal device 22... Second input unit 24... Second output unit 26... Display Department.

Claims (1)

A server that inputs and outputs to an external device and transmits and receives signals and data via a communication line;
a terminal device that transmits and receives data to and from the server via the communication line;
with
The server is
a first input unit for inputting a signal and text data from the external device;
When at least one of the signal and the text data input by the first input unit changes, the content of the changed signal is converted into a data format that can be processed by the terminal device and transmitted through the communication line. a first output unit that push-transmits to the terminal device or push-transmits the changed text data to the terminal device via the communication line;
with
The terminal device
a second input unit that pushes and receives the text data and the signal converted into a data format processable by the terminal device from the server via the communication line;
When at least one of the text data input by the second input unit and the signal converted into a data format processable by the terminal device has changed, at least one of the changed text data and the signal a display unit that displays one of them in a tabular format;
An information system characterized by comprising:

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