JPS6150441A - Data communication processing system for ship - Google Patents

Abstract

PURPOSE:To improve remarkably substantial transmission efficiency and operating efficiency of a system by providing processing priority to a text to be transmitted based on the urgency on ship navigation and executing processing in order from a text having a higher priority. CONSTITUTION:The data to be transmitted by a text edition circuit 31 is collected into the test in the unit of packets and the urgency of processing is set in response to the content. After an edited text is written in a transmission data queue memory 32 corresponding to the set priority code, the text is led to a data highway 15 in the higher priority order by a transmission processing circuit 33 and transmitted to designated stations 11-14. A text edition circuit 31 of the reception station assembles and edits the return text in response to the analyzed content, the return text is stored in the transmission data queue memory 32 by the priority, the return text is extracted in the high priority order from the transmission processing circuit 33 and transmitted to the transmission station.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data communication processing system for a ship that comprehensively processes data communication within a ship.

[Prior art and problems to be solved by the invention] In conventional ships, for example, 1:1 one-sided data communication is performed between the engine and terminals such as bridges. Data communication between terminals and high-speed, large-capacity comprehensive data communication are not implemented. Therefore, from the perspective of ship operations, it has been strongly desired to improve transmission efficiency in order to optimize the capacity and scale of communication channels, and to be able to comprehensively control data communications within ships.

This invention was made in consideration of the above-mentioned circumstances, and provides a data communication processing method for ships that can improve the substantial transmission efficiency of a communication system and comprehensively improve data communication onboard a ship. The purpose is to provide.

[Means for Solving the Problems] That is, the marine data communication processing system according to the present invention transmits text with a priority set through a communication line wired between a plurality of stations, and transmits the text from the communication line to the Receive text and store it in a reception data queue memory according to the priority of the text, extract texts from the reception data queue memory in descending order of priority, analyze the contents of the text, and assemble and edit reply text. Then, the reply texts are stored in a transmission data queue memory according to priority, and the reply texts are extracted from the transmission data queue memory in descending order of priority and transmitted to the other station via the communication line. It is characterized by this.

[Operation] That is, according to the present invention, by assigning a processing priority to the text to be transmitted based on the degree of urgency in ship operation, and processing the text in order of priority,
Since non-urgent data can be processed using free time, the actual transmission efficiency and operation efficiency of the system can be greatly improved. Further, it becomes possible to optimize the scale of the ship's LAN (integrated data communication system), for example, communication control i □ or ia 9-71-21.4-□111+7).

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Figure 2 shows the configuration of a ship's data communication network to which the present invention is applied. 2) and the navigation room (slave station 3) 14, and the devices of each station are connected in a loop through a data highway (communication line) 15 such as an optical fiber. A transmission/reception packet 16 having the format shown in the figure is transmitted.

In other words, this sending/receiving packet (block of data)
A queue buffer for temporarily holding text (hereinafter referred to as text) and a queue buffer for control information to control the buffer (text 1: control information 1). Specifically, a predetermined space in RAM on the system is used as a medium. ) 16 is a data control label 17 managed with the same packet number and a text 1 for transmitting and receiving data.
It consists of 8. The data control label 11 includes a packet number and pointer number (indicating the next packet number and configuring a packet queue (queue) if necessary) 19, a priority code 20 for the packet, and a transmission Station code, receiving station code 21, packet status code (data control label 1)
Indicates at which stage in the communication procedure the packet indicated by packet number 19 of 7 is in the communication procedure; for example, a state in which data is sent and is waiting to receive a confirmation signal that it has been received from the partner station, etc.) 22, transmission/reception time 23, timeout counter (A counter for the time during which the packet is stopped in the middle of the communication procedure) 24, etc. Further, the text 18 is composed of a data code section 25 and a data section 26.

Here, the data code section 25 includes, as extracted and shown in FIG. 4, a text processing priority code 25a1, a transmitting/receiving station code 25b, a data type 25C1, a data code (a code indicating the content of the text) 25d1, a serial number 25e1.
Repeat number 25 [consists of]

The priority code 20 of the packet control label 11 and the priority code 25a of the text 18 are set to have the same content.

However, only the priority code 25a of the text 18 is transmitted to the partner station. That is, a priority code corresponding to each data code section 25 is selected and set for each text by text editing processing. Table 1 shows an example of the text processing priority code 25a. It is assumed that the code number with the smallest number has the highest priority.

Table 1 and FIG. 1 show the basic configuration of a communication device using the data communication processing system according to the present invention, which is installed in the main station 11 and each of the slave stations 12 to 14, as described above. That is, this communication device receives the packets via the data highway 15, and includes a reception processing circuit 27 that determines the priority of the texts, and a reception processing circuit 27 that stores each text in the order determined by the reception processing circuit 27. a data queue memory 28, a high priority queue Q1 of this queue memory 28;
A text analysis circuit 29 that extracts texts in the order of ~Qn and analyzes their contents; a data storage device 30 that temporarily stores the contents of the texts analyzed by this text analysis circuit 29 as needed; and a data storage device 30 that stores data from this data storage device 30. A text editing circuit 31 sets a data code (i.e., sets a text priority code according to Table 1) at the same time as extracting and editing the text; A transmission data queue memory 32 that stores texts in descending order of priority, and a transmission processing circuit 3 that retrieves texts from queues Q1 to Qn of high priority in the first column memory 32 and transmits the contents to the data highway 15.
It consists of 3.

Here, in the text analysis and editing circuit 29.31, content analysis means performing processing according to the type of data, and editing means reading data from the data storage device 30 according to a predetermined processing order and For example, if data is received, look at the address of the data, set (write) the contents of the data to the address of the corresponding data storage device 30, and request the data. If the request is received, processing such as retrieving data from the corresponding address of the data storage device 30 (reading) and assembling text is to be performed in response to the contents of the request. And this text editing circuit 31
stores a program that executes how to assemble data (text) according to all the situations that occur, that is, when to extract which data and arrange it in the same manner. and sets a priority code (also stored in the text analysis and editing circuit 29) for that process.

The text editing circuit 31 can also be activated from an application processing circuit (application processing circuit) 34 at an application level, such as man-machine conversation, feedback from a plant, cyclic processing, etc. In other words, this application processing circuit 34 performs control display by referring to data in the data storage device 130, and also transfers input information to the data storage device 3.
0 and activates the text editing circuit 31 as necessary.

In the above configuration, the operation thereof will be explained below.

First, the text editing circuit 31 compiles data (text) to be transmitted into text in units of packets, and sets the degree of urgency of processing according to the contents.

This is done by setting a priority code in the text according to the operational priority (as shown in Table 1) depending on the content. After this edited text is written to the transmission data queue memory 32 corresponding to the set priority code, it is led out to the data highway 15 by the transmission processing circuit 33 in order of priority, and is sent to the designated station 11. ~14.

At the designated station, the reception processing circuit 27 receives the text, determines its priority code, and writes it into the corresponding queue in the reception data queue memory 28.

The texts written in this queue memory 28 are read out in order of priority, and the text analysis circuit 29 analyzes the contents of the data. The analyzed data is supplied to the data storage device 30, and the data at the corresponding address is updated with the analyzed data. In other words, the application processing circuit 34 uses this updated data to control the plant or provide a display alarm.

At this receiving station, the text editing circuit 31 assembles a reply text according to the content further analyzed, and sends the reply text to the transmitter 1-9''f''''j with priority.
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The transmission processing circuit 33 extracts the T*2 files in descending order of priority and transmits them to the transmitting station. For this reason, on the transmitting station side, the text sent back is analyzed in order of priority as described above, and is stored in the data storage device 30, and the data is correctly transmitted by the application processing circuit 34. Make sure it is displayed.

Therefore, the marine data communication processing system configured as described above prioritizes the processing of text on the marine data highway based on the urgency of ship operation, thereby processing non-urgent data. Therefore, there is no need to increase the performance of communication control devices, interfaces, etc., and it becomes possible to construct a data communication system for ships with appropriate scale hardware. That is, by adopting this sequential processing method using priority codes, the actual transmission density of the system can be greatly improved.

[Effects of the Invention] As detailed above, according to the present invention, a text with a priority set is transmitted through a communication line wired between a plurality of stations, the text is received from the communication line, and the text is processed. The received data is stored in the received data queue memory according to the priority, the text is extracted from the received data queue memory in order of priority, the content of the text is analyzed, a reply text is assembled and edited, and this reply text is By storing the transmission data in a transmission data queue memory in accordance with priority, and extracting the reply text from the transmission data queue memory in order of priority and transmitting it to the other station through the communication line, the substance of the communication system can be improved. It is possible to provide a data communication processing method for a ship that can improve overall transmission efficiency and comprehensively control data communication within a ship.

[Brief explanation of the drawing]

1 to 4 each show an embodiment of a ship data communication processing system according to the present invention, FIG. 1 is a block circuit diagram showing its basic configuration, and FIG. A block configuration diagram showing a ship data communication network,
FIG. 3 and FIG. 4 are diagrams each showing the format of data used in the same embodiment. 11-14...station, 15...data highway, 1
6... Packet for sending and receiving, 17... Label for data control, 18... Text, 19... Packet number and pointer number, 20... Priority code, 2
1... Transmitting station and receiving station code, 22... Packet status code, 23... Transmission/reception time, 24...
Timeout counter, 25...Data code section, 2
5a... Priority code, 25b... Transmitting/receiving station code, 25c... Data type, 25d... Data hood, 25e... Serial number, 25 "... Repetition number, 26
...Data section, 21...Reception processing circuit, 28...
Reception data queue memory, 29... Text analysis circuit, 30 River data storage device, 31... Text editing circuit, 32... Transmission data queue memory, 33... Transmission processing circuit, 34... Application processing circuit. Applicant's sub-agent Patent attorney Takehiko Suzue Figures 2 and 11 Figure 3

Claims (1)

[Claims] Means for transmitting text by setting a priority in a communication line wired between a plurality of stations, and means for receiving the text from the communication line and storing it in a reception data queue memory according to the priority of the text. a means for extracting texts from the reception data queue memory in order of priority, analyzing the contents of the texts and assembling and editing reply texts; and storing the reply texts in the transmission data queue memory according to priority. and means for extracting the reply text from the transmission data queue memory in descending order of priority and transmitting it to another station via the communication line. .