JPH06261408A - Monitor - Google Patents

Abstract

PURPOSE:To provide a monitor in which extensionality and convenience are enhanced by making modifiable the trigger conditions for recording and the information for designating the content to be recorded. CONSTITUTION:In the monitor for collecting the operational through a transmission line 4 and recording relevant information in a recording memory 18 of a central unit 1 depending on the trigger conditions such as occurrence of failure, a table of information for designating the trigger conditions of record and the content of record data is set in a RAM 19 of the central unit 1 and the content is updated by means of a display 2 and an operating unit 3. This constitution allows modification of the recording conditions or the content of record easily as required even after instailation or operation of the machines.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a monitor for monitoring the operating states of various devices, recording relevant information when a failure or abnormality is detected, and providing data necessary for investigating the cause of the failure or abnormality. Regarding the device.

[0002]

2. Description of the Related Art As a conventional monitor device, for example, a train monitor device mounted on a railroad train to monitor devices is described in Japanese Patent Laid-Open No. 54-138208. In this monitor device, the signal input from the monitored device, the trigger condition for instructing the data recording, and the data content to be recorded are fixed, and there is a problem that the monitoring function does not reach for events other than those assumed in advance. there were.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a monitor device in which a user can freely change the function setting according to the occurrence state of an abnormal event and the expansion of the system. It is in.

[0004]

In order to achieve the above-mentioned object, the trigger condition inside the monitor device and the information designating the recorded contents can be changed by an external operation.

[0005]

Since the monitor device performs the monitoring operation according to the above-mentioned trigger condition and the information designating the recorded contents, the function can be easily changed by changing this information.

[0006]

EXAMPLE An example of the present invention will be described below. Here, a train monitor device will be described as an example of application. First, the overall configuration of a general monitor device will be described with reference to FIG. The central unit 1 is generally installed in the leading car of the formation and is connected through a transmission line 4 to a plurality of terminals 5 installed in each car by data transmission. Terminal 5
Captures status signals from a plurality of monitored devices 6, converts the status signals into transmission data, and transmits the transmission data to the central device 1. The central unit 1 judges the contents of the received data while temporarily storing the received data, and when it detects a signal judged to be a failure or an abnormality, it stores the temporary recording data before and after it in the long-term recording memory. , The details of the detected failure are displayed on the display device 2 to notify the crew. The operation device 3 is an input device provided to instruct the central device 1 to display contents on the display device 2, and a keyboard switch or the like is generally used.

Next, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 shows the internal configuration of the central device 1. The inside of the central unit 1 is C for performing calculation and judgment processing.
PU (central processing unit) 11, ROM (read-only memory) 12 storing a processing program of CPU 11, display circuit 13 for generating a display signal on display 2, input buffer 14 for inputting an operation signal from operation device 3, A transmission circuit 15 for communicating with the terminal device 5 via the transmission path 4, a device power supply 1
It is composed of 6 and the like. The ROM can only read the contents written in advance, whereas the RAM (rewritable memory) is a memory capable of reading and writing data. The RAM (1) 17 is used as a working memory required for execution of processing by the CPU 11 and a temporary storage memory for device operation state signals received from the terminal device 5 at any time. RAM
(2) 18 is a memory for storing necessary data as long-term recording when the recording trigger condition is satisfied, and is backed up by the battery 20 so that the data will not be lost even when the device power supply 16 is cut off. The data recorded in the RAM (2) 18 is output from the output circuit 21 by connecting the reading device 7 at a vehicle depot, for example, and is used for analysis of the cause of failure. Although the above operation is the same as that of the conventional monitor device, the feature of the present invention is that the RAM is used as the memory for storing the information for designating the recording trigger condition and the recording data content.
(3) 19 is provided. Conventionally, the information designating the recording trigger condition and the recording contents is incorporated in the program and stored in the ROM 12, and the change after the monitor device is operated is performed by changing the program and replacing the ROM 12. Was there. In the present invention, these pieces of information are independently stored in the RAM (3) 19 to enable arbitrary updating. In order to prevent the information setting contents from being lost due to the disconnection of the device power supply 16,
(3) 19 is also backed up by the battery 20.

FIG. 3 shows the procedure for updating the above information by the CPU.
11 is shown as a processing flowchart. When the power is turned on,
First, it is confirmed whether or not information has been set.
If it is not set, the initial setting value stored in the ROM 12 is copied to the RAM (3) 19. After that, the device operation state signal is fetched at a predetermined cycle, and the RAM (3)
According to the information specified in 19, determine the trigger condition,
Perform data recording. If already set, the information previously set in the RAM (3) 19 is used as it is. When the information update request is received by the input from the operation unit 3, the current setting contents are displayed on the display unit 2,
Change information is input from the operation device 3. When the input is complete,
The change information is stored in the RAM (3) 19 and the flag data indicating the execution of the change is set. After that, the updated trigger condition and the designation information of the recorded content are valid.

FIG. 4 shows an example of how to use the information for designating the recording trigger condition and the recording content. Input data representing the operation state signal of each device is collected at a constant cycle and is temporarily recorded in the buffer memory 30 in the RAM (1) 17. This data is also cumulatively recorded in the temporary recording memory 31 in the RAM (1) 17 for a fixed time at all times. on the other hand,
The input data is determined by the trigger condition specification table 32 in the RAM (3) 19, and when the trigger condition is satisfied, the trigger condition satisfaction information is set. Even after the setting of the trigger condition satisfaction information, the data before and after the trigger is generated is generally recorded by continuing the data accumulation in the temporary recording memory 31 for a predetermined time. After the storage of the predetermined primary recording data is completed, only the specified data is selected from the temporary recording memory 31 according to the specification of the recording content specification table 33 and transferred to the long-term recording memory 34 in the RAM (2) 18.

As shown in FIG. 5, the trigger condition specification table 32 includes an AND condition for each input data for which the satisfaction of the trigger condition should be judged, and a record content No. indicating the data content to be recorded when the condition is satisfied. Is a table that specifies. Figure 5
In the table of No., ~ represents "input data", × represents "no designation of trigger condition", and the trigger condition NO. 1
As the AND condition, the input data is specified in the element 1, the input data is specified in the element 2, the element 3 is designated by x, and the element 4 is not designated by x. The record designation contents of the data of No. 1 are recorded contents NO. An example is shown as 1. Other conditions NO.
Is also the same. The CPU 11 uses this table 3
2 is checked for all trigger conditions, and it is determined whether or not the trigger conditions are satisfied. As a method of designating the input data as an element of the AND condition, for example, the address of the data in the input buffer memory stored according to the array of the received data from the transmission system is used. Here, FIG. 6 shows a specific example of the trigger condition designation table 32 and an example of changing the table. Note that the contents in parentheses in the table represent the specified contents after the trigger condition is changed. In FIG. 6, the condition No. before changing the designation of the trigger condition. 1 is element 1: "powering", element 2: "overcurrent", element 3: "x", element 4: "x", recorded content N
O. This is the designated content of 1. Other conditions NO. Is as shown in the figure. By the way, A, B, and C in () in the table are designated contents after the trigger condition is changed, and A
Adds the "section name" to the element 3 as the section designation data in the trigger condition in order to pursue the occurrence of overcurrent during power running in a specific section, and B knows the information inside the device at the time of failure in detail. Therefore, the record designation content is set to the record content NO. 2 is changed to C, and the change content in which the trigger condition "during regeneration" is deleted is shown in order to check the situation in which overvoltage occurs even though regeneration is not being performed.

The recording content designation table 33 is shown in FIG.
As shown in FIG. 5, the table specifies the combination of input data to be left in the long-term recording memory 34. In the table of FIG. 7, ~ represents "input data", × represents "no designation of recording content", and the recording content number 1 as data 1
The input data, the input data in data 2, the input data in data 3, the input data in data 4, and the input data in data 5 are designated. Other recorded contents No.
Is also the same. Here, FIG. 8 shows a specific example of the recording content designation table 33 and an example of changing the table. In addition,
The contents in parentheses in the table represent the specified contents after changing the recorded contents. In FIG. 8, the condition No. before changing the designation of the recorded contents.
1 is data 1: "motor current", data 2: "overhead voltage", data 3: "power running command", data 4: "brake command", data 5: "power running command", data 6: "x". It is the specified content. Other recorded contents No. Is as shown in the figure. By the way, D in () in the table is
This is the designated content after the change of the recorded content, and represents the modified content in which the record designation data is added to the data 6 by "km" in order to enhance the recorded content. In the embodiment described above, the condition for recording by the monitor device and the content of the data to be recorded are defined by the information table provided in the RAM,
Since it has a procedure for changing the setting of the table contents, it is possible to easily change the function after installation. Further, since the recording content specification table 33 has a structure having a plurality of recording patterns so that the recording content according to the trigger condition can be specified, unnecessary data recording is not performed, the capacity of the long-term recording memory is reduced, and the recorded data is analyzed. The convenience can be improved.

FIG. 9 is a block diagram for explaining the second embodiment of the present invention. The internal configuration of the central unit 1 is similar to that of the first embodiment, but a communication circuit 22 is provided so that the personal computer 8 can be connected to the outside. The information specifying the trigger condition and the recorded content is updated by using the personal computer 8 instead of the display device 2 and the operation device 3, but the procedure is essentially the same as in FIG. In this embodiment, the daily display and operation of the monitor device and the operation when changing the function can be made independent, and erroneous settings during normal use can be prevented. Further, the man-machine program for updating the information may be held in the personal computer 8, which has the effect of not increasing the program of the central unit 1.

FIG. 10 is a block diagram for explaining the third embodiment of the present invention. In this embodiment, the memory for storing the trigger condition and the information designating the recording contents is replaced with an IC card. RAM (3) in the first embodiment
An IC card reader 23 is provided instead of 19, and the trigger conditions and the recorded contents are stored in the IC card 24. IC
The contents of the card 24 are stored in the central device in the first embodiment.
However, if a card whose contents are updated by another device is prepared in advance, the change can be made only by replacing the IC card 24, and the change work time can be shortened.

FIG. 11 is a block diagram for explaining the fourth embodiment of the present invention. A MODEM (modulation / demodulation device) 25 is provided in the central device 1 and is connected to the external communication device 9 so that the external device can remotely update the information specifying the trigger condition and the recorded content. Here, the external communication device 9 is, for example, a wireless device, and it becomes possible to update the information of the monitor device of the designated train from the base station on the ground, and the specific condition is recorded for the occurrence of a failure during operation. It is possible to improve the responsiveness of information collection according to the situation such as setting. In addition, the efficiency of change work can be improved by updating the information for multiple trains at the same time. The counterpart of the ground facility may have a function corresponding to, for example, the personal computer 8 described in the second embodiment. Further, the external communication device 9 may be any device as long as it provides a communication path for data transmission, and its medium or system does not matter. In each of the above-described embodiments, the RAM has been described as an independent structure depending on the application, but these may be integrated into one memory, and the inside thereof may be divided and used. Further, as the recording memory, in addition to the battery backup type RAM described in the embodiment, the EEPR is used.
OM or flash memory may be used as long as it is a rewritable nonvolatile memory.

[0015]

According to the present invention, since the trigger condition for recording and the setting of the data content to be recorded can be easily changed, it is possible to trace a fault with low reproducibility and change the fault determination condition due to a device change. It is possible to deal with conditions that were not expected at the beginning of installation, and it is possible to realize a monitor device with excellent expandability and convenience. Further, generally, when the standardization of each terminal device 5 is attempted, a difference occurs in the signal input points due to the difference in the installed vehicle and the monitored device 6, and in many cases there is a surplus in the input points. In order to use such a preliminary input, it is necessary to change the program of the CPU 11 as well. In the present invention, if these preliminary inputs are also designated as input data, no change is required even when they are additionally used as recording trigger conditions or recording contents at a later date.

[Brief description of drawings]

FIG. 1 is a configuration diagram illustrating a first embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating an overall configuration of a monitor device.

FIG. 3 is a flowchart illustrating a procedure for updating information.

FIG. 4 is an explanatory diagram illustrating an information updating method.

FIG. 5 is a block diagram of a trigger condition specification table

FIG. 6 is a specific example of a trigger condition specification table and an example of changing the table.

FIG. 7 is a configuration diagram of a recording content designation table

FIG. 8 is a specific example of a recording content designation table and an example of changing the table.

FIG. 9 is a configuration diagram illustrating a second embodiment of the present invention.

FIG. 10 is a configuration diagram illustrating a third embodiment of the present invention.

FIG. 11 is a configuration diagram illustrating a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Central Device 2 Display Device 3 Operating Device 4 Transmission Line 5 Terminal Device 6 Monitored Device 7 Reading Device 8 Personal Computer 9 Communication Device 11 CPU 12 ROM 13 Display Circuit 14 Input Buffer 15 Transmission Circuit 16 Power Supply 17 RAM (1) 18 RAM (2) 19 RAM (3) 20 Battery 21 Output circuit 22 Communication circuit 23 IC card reader 24 IC card 25 MODEM 30 Buffer memory 31 Temporary recording memo 32 Trigger condition designation table 33 Record content designation table 34 Long-term recording memory

Claims (6)

[Claims] 1. A recording device comprising: a unit for inputting a plurality of signals representing the state of a device; and a unit for recording these signals, wherein a part or all of the input signal is recorded as a condition of a specific signal as a trigger condition. In the monitor device for recording in the means,
A monitor device comprising means for changing the information that defines the trigger condition or the content of an input signal to be recorded, and storage means for storing the information. 2. The storage unit for storing the information defining the trigger condition or the content of the input signal to be recorded according to claim 1, has a trigger condition designation table and a recording content designation table, and uses the input signal as the trigger condition. A monitor device, characterized in that judgment is made by a designated table, and when the trigger condition is met, trigger condition fulfillment information is set, and long-term recording is performed according to the designation of the recording content designation table. 3. The device according to claim 1 or 2, wherein the means for changing the information defining the trigger condition or the content of the input signal to be recorded is a display device and an operation input device belonging to the monitor device. Monitor device. 4. The apparatus according to claim 1 or 2, wherein the means for changing the information defining the trigger condition or the content of the input signal to be recorded is an external terminal device such as a personal computer connected to the monitor device. Characteristic monitor device. 5. The IC card reader according to claim 1 or 2, wherein an IC card reader is provided as a means for changing the information that defines the trigger condition or the content of the input signal to be recorded, and the storage means for storing the information is an IC card. A monitor device, wherein the information is input from an IC card. 6. The information changing means according to claim 1 or 2, wherein another information changing means installed in a place different from the monitor device is provided as means for changing the information defining the trigger condition or the content of the input signal to be recorded. A monitor device characterized in that the information is transmitted from the other information changing means to the monitor device through an external communication device.