JPS6035901A - Information transmitter of vehicle - Google Patents

Abstract

PURPOSE:To enable to readily discover the cause and the position of a troubled part by providing a monitor memory for storing an information monitor for monitoring information to be inputted to a central station and predetermined period information and sequentially updating the information. CONSTITUTION:A control command of an instructing unit 6 is transmitted through an input interface 13, a transmission buffer memory 16, a transmission controller 20 and a transmission line 5a to a terminal station 4. The station 4 outputs a command corresponding to the transmitted control command to control units 7-9, and transmits the operating information of the units 7-9 to a central station 10. The memory 16 stores the inputted information for the prescribed period. When an information monitor 17 detects the malfunction of the content of the memory 16, it transfers the content of the memory 16 to a monitoring memory 18, and outputs through an output interface 15 to a display unit 11 and a monitor output unit 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This invention relates to an information transmission device for a vehicle that facilitates the recovery of malfunctioning on-vehicle equipment.

[Prior art]

FIG. 1 is a configuration diagram of a conventional vehicle information transmission device.

In the figure, +11 is a vehicle with a driver's cab, (2) is a vehicle connected to the vehicle (11) or connected to each other, and (3) is a central station mounted on the vehicle (11) that transmits information to the terminal station (4). The terminal station (4) is mounted on the vehicle (2) and receives information from the central station (3), and (5b) is a dual system between the central station (3) and the terminal station (4). Optical transmission line with connected optical fibers, (6) is a control command unit mounted on vehicle +11 and sends control commands to central station (3), (7) to (9) are central station (3) and terminal station, respectively. This is a control device operated by the command (4).

A conventional transmission device is configured as described above, and has a control command (
6) is transmitted from the central station (3) to the terminal station (4) via the transmission line (5a), and is returned to the central station (3) via the transmission line (5b). As a result, each station f
Control units a(7) to (9) connected to 3H41 operate in response to control commands.

However, the conventional system has a drawback that when any of the control devices (7) to (9) fails, it takes time and effort to find the location of the failure.

[Summary of the invention]

This invention was made with the aim of improving such drawbacks, and includes an information monitoring device that monitors information input to the central station and a monitor memory that stores information for a predetermined period and updates the information sequentially. To provide an information transmission device for a vehicle that, when an abnormality occurs, displays the occurrence of an abnormality on a display device installed in the driver's cab and outputs the information to a monitor device, thereby making it possible to easily discover the cause of the failure and the location of the failure. be.

[Embodiments of the invention]

FIG. 2 is a block diagram showing an embodiment of the present invention. +I+
+21141 to (9) are completely the same as the conventional ones.

(lO) is a central office that transmits input control commands to terminal JNJ (41) and operates control equipment (7) (8);
1) is a display device that performs a predetermined display according to the command from the central office (10), and (121 is a monitor output device that outputs information monitored by the central office (10). It is configured as shown in Figure 8.

(13) is an input interface that receives control commands, and a
t level adjustment and noise cut processing are performed. H is a control device [7] (an output interface that sends commands based on control commands to 81, an output ink face that exchanges information with a display device (121) and a monitor output device (121)
(11 is the transmission buffer memory, which is configured to store input information for a predetermined period of time. (Il is an information monitoring device, and the transmission buffer memory! (1 barrel is a monitor memory, and the information before and after the abnormality occurrence stored in the Panzer memory state is stored. (191 is a microcomputer pass, and the above (14) to 0 machines are stored. They are connected so that information can be exchanged between them. 4 is a transmission control device, and information is exchanged with the transmission pack memory (Il 19). The rule is an electro-optic converter, and the transmission control device is The 'electricity number' outputted by is converted into a number (yen) and output.

(To) is a photoelectric converter that converts the input optical signal into electrical signals and inputs them to the transmission control device (C).

In the vehicle information transmission device configured as described above, the control commands from the command unit (6) are input ink face haze, transmission buffer memo! It is converted into an optical signal by an electro-optical converter (Incorporated) via J (It9. Transmission control device), transmitted to the terminal station (4) via the transmission line (5a), and then transmitted from the terminal station 14) to the transmission line. (5b) returns the optical signal to the central office (lO). -10,000, the central station (10) has output interface 7 eighth (14
Control commands corresponding to control commands from #1 device +71 +
8), and the terminal station (4) outputs a command corresponding to the transmitted control command to the control devices (7) to (9). As a result, each control device (7) to (8) operates, and the operation information of each control device (7) to (9) is transmitted to the central office (lO).

In this way, when transmitting control commands and operating the control devices (7) to (9), the central station (1ω) monitors the contents of the transmission buffer memory H with the information transmission device and detects any abnormality in the contents. Then, the contents of the transmission buffer memory (lfl) are transferred to the monitor memory DIG. The fact that the abnormal contents have been transferred is displayed on the display device (11) through the output interface (151).

Such an abnormality in transmission information is detected by the monitor output device fEic.
By giving an output command, the information before and after the abnormality occurrence stored in the monitor memory is transferred to the monitor output device (
Output to the country. Therefore, by connecting an output device such as a printer as a monitor output device and outputting it, the cause and location of the abnormality can be quickly and accurately grasped.

Figure 4 tI'i is a configuration diagram of a terminal station according to another embodiment of the present invention. The terminal station (c) is configured to monitor information stored in the transmission buffer memory 0 through which information is exchanged with the transmission control device using an information monitoring device (Il).

The terminal station 1 having such a configuration transmits more detailed status information of the control devices 2 in addition to the status information of the control devices (7) to (9) operated based on the Mj information and control information based on the control command. (Rahua memory (II tic) can self-memorize, and this transmission buffer memory (11) is monitored by the information monitoring device 0η. Therefore, if the information being monitored becomes abnormal, the control equipment (7) to ( 9) Detailed information on the central station (1
0).

FIG. 5 is a block diagram of a terminal station according to yet another embodiment of the present invention. The terminal station (24) has a monitor memory (24) for temporarily storing information before and after the occurrence of an abnormality on the terminal station side.
By adding 18), the same effect as in the above embodiment is expected, and the storage capacity of the central office (IO) is reduced.

〔Effect of the invention〕

As described in (7) above, this invention includes an information monitoring device that monitors at least the information input to the central station, and a monitor memory that stores information within a predetermined period and sequentially updates the stored information, and detects abnormalities in the information. When an error occurs, information before and after the occurrence of the error is transmitted to the display device in the driver's cab, which has the effect of making it easier to take measures to determine the cause of the error and the location where the error occurs.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a conventional vehicle information transmission device, FIG. 18 is a configuration diagram of a vehicle information transmission device according to an embodiment of the present invention, FIGS. 1 and 8 are configuration diagrams of a central station, and FIGS. FIG. 5 is a block diagram of a terminal station showing other embodiments of the present invention. In the figure h, +l+ 121 is a vehicle, (4) is a terminal station,
(5a) (5'b) LD optical transmission line, (6) C control command unit, (7) ~+91 are control #sakura device% (10+ is central station, (II) is display device, θ″4 is Monitor output device % (16) is packa memory, 11η is information transmission device, a81t/'i monitor memory. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Masuo Oiwa Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] An optical transmission line connects a central station that transmits operation commands to the controlled equipment and a terminal station that receives the operation commands and transmits them to the controlled equipment, and transmits the operation commands and the operation status information of the controlled equipment. In the case of transmission through the above optical transmission line, there is an information monitoring device that monitors the information input to the central station, a pack memory that stores information within a predetermined period and updates the information sequentially, and an information monitor that monitors the information input to the central station, and A monitor memory is provided which stores the information before and after the time of occurrence of the abnormality stored in the buffer memory and outputs the stored information to a monitor output device connected to the central station when an abnormality occurs in the information stored in the central station. Vehicle information transmission device.