JP3149815B2 - Failure rating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fault evaluation system for specifying a fault location, and for example, in a communication system, monitors the presence or absence of a fault in each package as a replaceable unit constituting the system. The present invention relates to a failure evaluation system for specifying which package has failed when one of the packages has failed.

[0002]

2. Description of the Related Art In a certain type of transmission apparatus, the concept of a package is introduced as a minimum replacement unit when a failure occurs, and the presence or absence of a failure is monitored for each package. In such an apparatus, when one of the packages fails, a failure lamp corresponding to the failed package is turned on to notify a maintenance person of a package that needs to be replaced.

FIG. 7 shows such a conventional failure evaluation system. This system includes a master package 11 having a failure evaluation unit, and a plurality of slave packages 13 ₁ , 13 ₂ ,..., 13 _N connected to the master package 11 via a transmission line 12. . Individual slave-side packages 13 ₁ , 13 ₂ ,
... _13N are provided with failure detection units 21 ₁ , 21 ₂ ,... 21 _N for detecting failures in the package, and failure information indicating the presence / absence of failures is provided by the failure detection units 21 ₁ , 21 ₂ ,. 2
Failure information transmitting units 22 ₁ , 22 ₂ ,... Connected to 1 _N.
22 _N from the master package 11 via the transmission line 12
Side. Each of the slave-side packages 13 ₁ , 13 ₂ ,..., 13 _N has a failure lamp 2 for notification when its own package has failed.
_{3 1, 23 2, ...... 23} N are arranged.

On the other hand, in the master side package 11, each slave side package 13 ₁ , 13
_2, ...... 13 _N and the alarm collection section 24 is provided to request the collection of the failure information to the failure assessment unit 25 slave-side package 13 ₁ based on collected information, 1
3 _2, failure in any one of ...... 13 _N to assess this when an error occurs. The evaluation result of the failure evaluation unit 25 is sent to the failure lamp control unit 26, and the failure lamp 23
The lighting control of the lamp is performed on _{one of the 1} , 23 ₂ ,..., 23 _N corresponding to the failed package.

[0005] A conventional failure evaluation system having such a configuration.
Then, each slave side package 13₁, 1
3_Two, ... 13_NFailure detection unit 21₁, 21_Two, ……
21_NDetected an abnormality in the main signal circuit (not shown),
The information is transmitted to its own failure information transmitting unit 22.₁, 22_Two,
... 22_NTo be passed to. These failure information
Transmission unit 22₁, 22_Two, ... 22_NIs the alarm collection unit 24
Is waiting for an alert notification request from
If there is, the master package 11 is notified of the failure information.
The alarm collection unit 24 includes all slave side packages 1
3₁, 13_Two, ... 13 _NMake an alarm notification request to
And collect the respective failure information and send it to the failure assessment unit.
25.

[0006] The failure evaluator 25 uses the failure information sent from all the slave-side packages 13 ₁ , 13 ₂ ,..., 13 _N to determine which package has a higher possibility of failure. Then, when the package corresponding to the failure is determined, the failure lamp control unit 26 is notified of this. The failure lamp control unit 26 performs control for turning on the failure lamp 23 of the package corresponding to the failure. In this way, the fault lamp 23 ₁ is turned on when, for example, a failure in the first slave-side package 13 ₁ is generated. The maintenance person has the trouble lamps 23 ₁ , 23 ₂ ,.
When any one of 3 _N is lit, the lit slave package (in this case, slave package 13 ₁ ) is replaced.

A technique for detecting a failure by transmitting and receiving data between the master side and the slave side via the bus as described above is disclosed in, for example, JP-A-3-97054.

[0008]

In such a conventional fault assessment system, the master package 11 issues an alarm notification request and issues a request to each of the slave packages 13 ₁ , 13 ₂ .
... Since failure information is collected from 13 _N , if a failure occurs in the master side package 11, the failure lamp 2
3 _1, 23 _2, the notification itself Breakdown by ...... 23 _N can no longer take place. That is, the master side package 11 is connected to each of the slave side packages 13 ₁ , 13 ₂ ,.
Since the failure of 13 _N is intensively managed, it is a major premise that the master side package 11 does not fail.

Further, such a conventional failure evaluation system
Now, the master side package 11 collects the failure information
In addition, the slave side package 13₁, 13_Two, ……
13 _NOf which is malfunctioning
Was. For this reason, the failure processed by the master side package 11
Large amount of information, etc., increases the processing load
There was also a problem.

Accordingly, an object of the present invention is to prevent the load from being concentrated on some packages such as the master side package, and to evaluate the failure without any trouble even if a failure occurs in such a package. An object of the present invention is to provide a failure evaluation system.

[0011]

According to the first aspect of the present invention, there are provided: (a) a transmission line for transmitting failure information as information relating to a failure; (b) failure detection means for detecting an internal failure; Fault information transmitting means for transmitting the internal fault information obtained by the detection of the fault detecting means to a transmission path with a transmission source address attached thereto, and fault information receiving for receiving fault information addressed to itself from the transmission path; Means, failure detection means for determining the presence or absence of an internal failure using the detection result of the failure detection means and the failure information received by the failure information receiving means, and an internal failure is determined by the failure determination means. And display means for displaying the information, and are provided for each function, for detecting a failure and transmitting failure information, respectively.
A failure evaluation system is provided with a plurality of function-specific packages that independently perform reception, failure determination, and display .

That is, according to the first aspect of the present invention, functional packages are respectively connected to a transmission path such as a common bus, and these detect faults independently for each package.
Then, the detection state is sent to the transmission line, so that all the function-specific packages connected to this transmission line can grasp the detection state of the failure state of the function- specific packages other than their own. The failure presence / absence determination means of each function-specific package combines the failure detection status of its own function-specific package with information obtained via a transmission path,
It is possible to determine whether or not its own function-specific package is out of order. If it is out of order, it can be displayed independently by the display means. Also, in the present invention, the packages for each function connected to the transmission path are independent of each other.
Since the failure evaluation is performed, a package for intensively performing the evaluation becomes unnecessary, and the problem when such a package breaks down is eliminated.

According to the second aspect of the present invention, (a) a transmission path for transmitting failure information as information relating to a failure;
(B) fault detecting means for detecting an internal fault, fault information transmitting means for transmitting internal fault information obtained by detection of the fault detecting means with a transmission source address attached to a transmission path, and transmission path Failure information receiving means for receiving the failure information addressed to the self from, failure existence determination means for determining the presence or absence of an internal failure using the detection result of the failure detection means and failure information received by the failure information receiving means Display means for displaying when an internal failure has been determined by the failure presence / absence determining means, and information for notifying a predetermined external device when the internal failure has been determined by the failure presence / absence determining means. It is prepared and a notification information sending means for sending to the road in functional unit includes respective inspection of each failure
Output, transmission / reception of failure information, judgment of failure existence and display
A plurality of function-specific packages to be performed independently ; (c) a receiving unit for receiving information transmitted from the notification information transmitting unit to the transmission line; and transmitting the information received by the receiving unit to a predetermined external device. And an external device transmission unit having a transmission unit.

That is, according to the second aspect of the present invention, a package for each function is connected to a transmission path such as a common bus, and the detection of each failure is independently performed for each package.
Then, the detection state is sent to the transmission line, so that all the function-specific packages connected to this transmission line can grasp the detection state of the failure state of the function- specific packages other than their own. The failure presence / absence determination means of each function-specific package combines the failure detection status of its own function-specific package with information obtained via a transmission path,
It is possible to determine whether or not the function-specific package has failed, and if it has failed, display it independently on the display means, and notify the external device transmission means of the failure and notify the external device of the failure. Can be notified of the situation.
Further, according to the present invention, since each function-specific package connected to the transmission path performs a fault evaluation independently , a package for performing this intensively becomes unnecessary, and the problem when such a package breaks down is eliminated. .

[0015] In the present invention of claim 3, wherein, regarding the failure (a)
A transmission path for transmitting failure information as information to be performed;
(B) Each package prepared for each function is
Fault detecting means for detecting an internal fault;
Sends internal failure information obtained by detecting the stage to the transmission line
A failure information transmitting means for sending out with the original address;
Failure information that receives failure information addressed to itself from the transmission line
Receiving means, detection result of the failure detecting means and failure information receiver
If there is an internal fault using the fault information received by the
Fault presence / absence determining means for determining absence,
Indicate when an internal failure has been determined by the step
Display means, and the failure information transmitting means has its own package.
Address all packages connected to the transmission path including
First, send out the failure information, and
The failure information receiving means transmits the same failure information from the transmission line.
When multiple non-reception states continue, the own package
Multiple function-specific packages that are
Is provided in the failure evaluation system. That is, Claim 3
In the above-mentioned invention, a package for each function
Are connected to each other, and these are the detection status of each fault.
Is sent to the transmission line,
All featured packages that are not
It is possible to grasp the detection status of the failure status of another package.
Wear. Means for determining whether or not each function has a failure
Is to check the failure detection status of the package for each function and the transmission path.
Together with the information obtained through
Can be determined whether or not the
If this is the case, this can be displayed on the display
You. In the present invention, each function-specific package connected to the transmission path is used.
Since each cage performs a failure rating,
Packages to perform are no longer needed,
Eliminates problems in the event of failure. Moreover, the function
If the package detects a fault, all
Sends failure information to the transmission path with the function-specific package as the destination
However, if the transmitted failure information is not detected multiple times,
If it continues, it is determined that the package for its function has failed.
Can be different.

According to the fourth aspect of the present invention, (a)
A transmission path for transmitting failure information as information to be performed;
(B) Each package prepared for each function is
Fault detecting means for detecting an internal fault;
Sends internal failure information obtained by detecting the stage to the transmission line
A failure information transmitting means for sending out with the original address;
Failure information that receives failure information addressed to itself from the transmission line
Receiving means, detection result of the failure detecting means and failure information receiver
If there is an internal fault using the fault information received by the
Fault presence / absence determining means for determining absence,
Indicate when an internal failure has been determined by the step
The internal failure is determined by the display means and the failure determination means.
Information to notify the specified external device when the
Notification information sending means for sending information to the transmission path as information.
For example, the failure information transmission means transmits the information including its own package.
Failure information to all packages connected to the road.
Information, and the failure information receiver in its own package.
The stage does not receive the same failure information from the transmission line
Is determined to be a failure in its own package when multiple
Multiple functional packages and (c) notification
Reception to receive information sent from the information sending means to the transmission path
Means and information received by the receiving means
External device transmitting means, comprising: transmitting means for transmitting to an external device
Are provided in the failure evaluation system. That is, claim 4
According to the described invention, a function-specific package
Connected to each other, and these
State is sent to the transmission line,
All of the functional packages that are continued
It is possible to grasp the detection status of the failure status of the Nobetsu package
it can. Determining whether or not each package has a failure
The stage shows the failure detection status of the package according to its function and the transmission path.
Together with the information obtained through
Can be determined whether or not the
If there is an obstacle, display it on the display and
Notify this to the external device transmission means and notify the external device of the failure.
Can be notified. Also, in the present invention, the transmission path
Each successive functional package performs a fault assessment
This eliminates the need for a package that does this intensively,
This eliminates the problem when the package breaks down.
Moreover, place the self-of function-specific package has made the detection of failure
In this case, all functional packages including
Sends fault information to the transmission line and detects the sent fault information
If the abnormalities that are not detected continue multiple times,
It can be determined that the package is out of order.

According to the fifth aspect of the present invention, (a)
A transmission path for transmitting failure information as information to be performed;
(B) Each package prepared for each function is
Fault detecting means for detecting an internal fault;
Sends internal failure information obtained by detecting the stage to the transmission line
A failure information transmitting means for sending out with the original address;
Failure information that receives failure information addressed to itself from the transmission line
Receiving means, detection result of the failure detecting means and failure information receiver
If there is an internal fault using the fault information received by the
Fault presence / absence determining means for determining absence,
Indicate when an internal failure has been determined by the step
Display means, and the failure determination means is provided with its own package.
Fault is detected by the fault detection means, and another fault is detected.
If the packages are not faulty
And the failure of its own package becomes a failure detection means.
Therefore, it is detected and another package is faulty.
Upstream package that transmits the main signal when the
When the failure is not detected by the
Fault is detected by the fault detecting means and the main signal
A failure is detected in the package on the downstream side that transmits
This may cause the package to fail.
Each time the package is faulty
Otherwise, the package itself is faulty.
Multiple function-specific packages that are determined to be
And a fault assessment system. Ie billing
According to the invention described in the item 5, in the transmission line such as the common bus, the package according to the function is provided.
Connect the cages individually and these will
Output state to the transmission line.
All functional packages connected to
Identify the detection status of package failure status by function.
Can be. Judgment of package failure for each function
The disconnection means is based on the failure detection status of
In addition to the information obtained via the transmission route,
Package to determine if it is faulty.
If it has failed, display it on the display.
Can be. Also, in the present invention, each device connected to the transmission path
Intensive because each Nobetsu package performs a failure assessment
This eliminates the need for packages that do this,
The problem in the event of a cage failure is eliminated. Via the transmission path
Resulting that the failure information and self Functional package detected inside Te
The specific contents combined with the fault information
Non-judgment means judges whether there is a failure in the package for each function.
I have decided to refuse. In this specification, the upstream side and
The term “downstream side” is used to refer to the flow of the main signal. You
That is, sending a signal to the package of interest
The package is called upstream, and from the package of interest
The package receiving the signal is called downstream. Ma
Also, the main signal is not directly related to the failure information.

According to the invention of claim 6, (a) the failure
A transmission path for transmitting failure information as information to be performed;
(B) Each package prepared for each function is
Fault detecting means for detecting an internal fault;
Sends internal failure information obtained by detecting the stage to the transmission line
A failure information transmitting means for sending out with the original address;
Failure information that receives failure information addressed to itself from the transmission line
Receiving means, detection result of the failure detecting means and failure information receiver
If there is an internal fault using the fault information received by the
Fault presence / absence determining means for determining absence,
Indicate when an internal failure has been determined by the step
The internal failure is determined by the display means and the failure determination means.
Information to notify the specified external device when the
Notification information sending means for sending information to the transmission path as information.
The failure determination means detects that the package has failed.
Fault detected by another fault detection
When these packages are determined to be not defective,
Failure of your package is detected by the failure detection means.
And other packages are considered to be faulty
Detects a failure in the upstream package that transmits the main signal
Is not being performed and the failure of its own package
Is detected by the fault detection means and transmits the main signal.
A failure is detected in the upstream package, and this is
When there is a possibility of causing a package failure
In each case, it is determined that its own package is broken,
Otherwise, your package is not broken
A plurality of functional packages that are determined to be
(C) The information sent from the notification information sending means to the transmission line
Receiving means for receiving and information received by the receiving means;
Transmission means for transmitting information to a predetermined external device.
The failure evaluation system is provided with the device transmission means. sand
In other words, in the invention according to claim 6, the transmission line such as a common bus is
Nobetsu packages are connected to each other,
Since the failure detection status was sent to the transmission line,
All functional packages connected to the transmission line of
Check the detection status of the failure status of the package for each function other than your own.
Can be grasped. Because of the package for each function
The failure presence / absence determination means detects the failure of the package according to its function.
Along with the situation and the information obtained via the transmission line,
To determine whether a functional package is faulty
If there is a fault, this is displayed on the display.
And notifies the external device transmitting means of the
Can be notified of the failure situation. In the present invention,
Is due to the package for each function connected to the transmission line.
Since fault assessment is performed, it is not possible
In short, the problem if such a package breaks down
Disappears. Failure information obtained through the transmission line and its own machine
Combined with failure information detected inside Nobetsu package
The specifics of the failure, the failure
The package is to be checked for failure.

According to the seventh aspect of the present invention, (a)
A transmission path for transmitting failure information as information to be performed;
(B) Failure detection means for detecting an internal failure, and the failure
The internal failure information obtained by the detection
Failure information transmission means for sending a message with the address of the transmission source attached to
And failure information is received from the transmission line
Fault information receiving means, detection result of fault detecting means and fault information
An internal fault is detected using the fault information received by the receiving means.
Failure determination means for determining the presence or absence of a failure, and the presence or absence of this failure
When an internal failure is judged by the judgment means, this is displayed.
Display means and a failure determination
When a failure is determined, it is notified to a specified external device.
Notification information transmitting means for transmitting to the transmission line as information for
Multiple function-specific packages provided for each function
Cage and (c) sent to the transmission path from the notification information sending means
Receiving means for receiving the received information, and using the receiving means
Information from one of multiple functional packages
When the information is transmitted to the package,
Convert to the signal format to be sent to a predetermined external device and
External device transmitting means comprising transmitting means for transmitting to the device;
Is provided in the failure evaluation system.

That is, in the invention according to claim 7 , the common bus
Function-specific packages to transmission paths such as
They send the fault detection status to the transmission line.
All the devices connected to this transmission line
Nobetsu package is a malfunction of other functional packages
The state of detection of the state can be grasped. Each function
The failure determination means of another package is
Cage failure detection status and information obtained via transmission line
In addition, check whether the package for each function has failed.
Can be identified and displayed if it is faulty
This is displayed on the external device transmitting means
To notify external devices of the failure status.
You. In the present invention, each function-specific package connected to the transmission path is used.
Since each cage performs a failure rating,
No need for packages to do,
Eliminates problems in the event of failure. Obtained through the transmission path
Fault information and faults detected inside the self-function package
The specific content combined with the information
The stage should determine whether its functional package has failed.
And

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

First Embodiment

FIG. 1 shows an outline of the configuration of a failure evaluation system according to a first embodiment of the present invention. The system includes, via an alarm notification bus 101, _first to N-th packages 102 ₁ to 101 which are dependent on a main signal.
02 _N are connected in common. First to first
Each of the Nth packages 102 _{1 to} 102 _N has the same configuration of the circuit portion related to the failure evaluation. A main signal 103 for performing alarm information communication is transmitted to the alarm notification bus 101.

FIG. 2 specifically shows a main part of the configuration of the first package shown in FIG. 2nd to Nth
The circuit portions related to the fault evaluation for the packages 102 _{2 to} 102 _N are basically the same as those of the first package 102 ₁ , and thus illustration of these packages is omitted.

The bus monitoring unit 111 ₁ of the first package 102 _1, the failure information transmitting unit 112 ₁ and the failure information receiving unit 113 ₁ is connected to the alarm notification bus 101 together. Of these, the bus monitoring unit 111 ₁ communicates with the failure information transmitting unit 112 ₁ in the _first package 102 ₁ to obtain the failure information in its own package, and uses this to obtain the failure evaluation unit 115 _1.
Supplies to supply the failure information transmitting unit 112 ₁ to obtain the results of the assessment of the failure evaluation unit 115 _1. Further, the bus monitoring unit 111 ₁ also monitors whether data is transmitted on the alarm notification bus 101.

[0027] The failure information transmitting unit 112 _1, a bus monitoring unit 1
11 performs transmission of failure information under the _first control, the failure information receiving unit 113 ₁ is adapted to perform reception of failure information addressed to itself on the alarm notification bus 101. Failure detection unit 114 ₁
It is connected to the failure information transmitting unit 112 ₁ is adapted to detect a failure of the first package 102 ₁ sends this to the failure information transmitting unit 112 _1. Fault detection of the failure detection unit 114 ₁ is performed by the path pattern monitoring and parity monitoring.

Failure information receiving section 113₁Is a self-addressed
When the failure information is received, the failure information is sent to the failure evaluation unit 115.₁Send to
It has become so. Failure information transmission unit 112₁Is a self-pack
Failure information in cage and failure evaluation unit 115₁The rating of
The result is sent to the alarm notification bus 101. Failure information transmitter
112₁Sends fault information to the alarm notification bus 101
As described later, the first to Nth packages 1
02₁~ 102_NSet everything to its destination
Then, the transmitted failure information is stored in the first package 102. ₁itself
Failure information transmitting unit 112₁Will also be received.

The failure evaluation section 115 ₁ determines the failure state of its own package and the received _second to Nth packages 102 ₂ to 102 1.
02 using the fault information sent from the _N, if only the own package is faulty, if the fault of the self package is affecting the other packages because,
Various types of failures are evaluated, for example, when a failure is detected in the own package due to another package. Then, when it is determined that a failure has occurred in the first package 102 ₁ as its own package, the failure lamp 116 ₁ in its own package is turned on to notify the maintenance person.

Next, focusing on the first package 102 ₁ , the operation of the fault evaluation system configured as described above will be described. Failure detection unit 114 ₁ of the first package 102 ₁ shown in FIG. 2, when detecting a failure in the own package and transmits the failure information to the failure information transmitting unit 112 _1. In the failure information transmitting unit 112 _1, assembling the failure information into frames of a predetermined format.

FIG. 3 shows a frame format of the failure information. The frame 200 of the failure information is
A frame synchronization unit 201, a transmission destination address 202, a transmission source address 203, a variable length data unit 204, and a data length unit 20 representing the data length of the data unit 204
5 and a CRC (Cyclic Redundancy Check) code 206 for detecting a bit error by a binary polynomial. Here, as the source address 203, the mounting position of the corresponding package or a package ID uniquely specified in the package is used. In addition, as the transmission destination address 202, in the case of this frame for transmitting the failure information, “F” indicating all of the _first to Nth packages 102 _{1 to} 102 _N as destinations
Fh ″ is written in the data section 204.
14 ₁ encodes the detected fault information in the information is stored.

A frame of the fault information having such a configuration is created.
When this is completed, the failure information transmitting unit 112 ₁Is the bus monitoring unit 11
1₁Notify that data to be notified has been created
And the bus monitoring unit 111₁This fault information until
Retain information. Bus monitoring unit 111₁Is the alarm notification bus 1
01 is monitored for data transmission. Soshi
And another package 102 on the alarm notification bus 101.
_Two~ 102_NIs sending data.
When the package 102₁Failure information transmitter 1
12₁Even if there is a transmission request from
Data transmission is not performed. This is the day
Of the package 102 in which the failure occurred by avoiding the collision of data
In order not to make it impossible. Bus monitoring unit 111₁Is
No data is transferred on the alarm notification bus 101
In this case, the failure information transmitting unit 112₁To notify the alarm
Data composed of failure information is transmitted onto the bus 101.

Because of the own package on the alarm notification bus 101
When failure information indicating a failure is transmitted, the bus monitoring unit 111
₁Receives the failure information frame
Part 113₁Received at (contents of data section 204)
And failure information transmitting unit 112₁Comparison with data that exists in
Do. As described above, the failure information frame
The destination addresses 202 are the first to N-th packets.
Page 102₁~ 102 _N"FF" indicating all of
h ”. Therefore, on the alarm notification bus 101
The transmitted data is the first to Nth packages 102₁~
102_NAre all information that can be referred to. That is,
Package 102 of 1₁If there is no failure,
Report receiver 113₁Data and failure information transmitting unit 1
12₁The data present in should match.

If the two data are different, the bus monitor 111 ₁ instructs the failure information transmitter 112 ₁ to retransmit. As a result, if, for example, the transmitted data is different from the failure information in the package even after the transmission operation is repeated three times, the bus monitoring unit 111 ₁ causes the first package 102 ₁ as its own package to have any failure. a notification to that effect to the fault evaluation unit 115 ₁ determines that there is.

As described above, the failure information receiving unit 113₁Is my package
Has been described for receiving fault information on
In some cases, the first package 102₁Failure information receiving unit 11
3₁Is another package 102_Two~ 102_NFailure information from
Information or other information, the destination address 202
First package 102₁Place to directly specify the address of
If it is “FFh” indicating all packages as destinations
If the data is transmitted together with the source address 203 of the frame,
Unit 204 will be stored. This stored information
For the failure information, the failure evaluation unit 115₁Sent to
Will be. As described above, the failure evaluation unit 115₁The first
1st to Nth packages 102₁~ 102 _NBecause of
Fault information will be supplied.

FIG. 4 shows a state where the failure evaluation unit performs the failure evaluation. The failure evaluation unit 115 ₁ shares a CPU (Central Processing Unit) (not shown) with other circuit parts of the first package 102 ₁ as necessary, and stores a ROM (Read Only Memory) or the like also not shown. By executing the control program stored in the medium,
Judgment control relating to failure evaluation is performed.

First, the CPU has the first package as its own package.
Package 102₁Whether itself is detecting a fault
Is checked (step S101). The first package
Page 102₁If the failure itself is detected (Y),
First package 102 ₁It is determined that the failure is itself.
You may not be able to refuse. Other package 10
2_Two~ 102_NOf the first package 102 due to the failure of
₁If the same detection is performed as if there is a fault
It is. Therefore, in this case, as an additional judgment,
Transmitted through the alarm notification bus 101 of the fault assessment system
Due to the dependency of the main signal, the package corresponding to the upstream
Check whether a failure has been detected (step
S102). And another package 102_Two~ 102
_NEven if a failure is detected in the upstream package,
If this is not detected (N), the step
Proceeding to step S103, the first package 102₁Failure and
to decide. In this case, the failure evaluation unit 115₁Is
Fault lamp 116 in cage₁Lights up to notify maintenance personnel.
The user will be notified (step S104).

[0038] If detecting a failure in the package that corresponds to the upstream side in step S102 (Y), does not determine the first package 102 ₁ fault (step S10
5). In this case, the failure lamp 116 ₁ is not turned on.

If it is determined in step S101 that the first package 102 ₁ itself does not detect the failure (N), the other package corresponding to the downstream side in relation to the main signal is not detected. A check is performed to determine whether a failure has been detected in the package and this has a possibility of being caused by a failure in the first package 102 ₁ (step S106). If such a possibility exists (Y), the process proceeds to step S103, where it is determined that the first package 102 ₁ has failed, and the failure lamp 116 _{1 is} detected.
Lights up. This is intended to be left to the final judgment of the maintenance person. Otherwise (N) in step S106, the process proceeds to step S105 and the first package 1
It is not determined that the failure is 02 ₁ .

As described above, in the failure evaluation system of the first embodiment, each of the packages 102 _{1 to} 102 _N recognizes the detection state of the alarm of the other package 102 before the failure evaluation, and each of the packages 102 _{1 to} 102 _N evaluates its own failure. The failure lamp 116
Is turned on. The information after the rating is notified to the alarm notification bus only when notifying the external device in the second embodiment described below.

As described above, in the failure evaluation system according to the first embodiment, each of the packages 102 _{1 to} 102 _N connected to the alarm notification bus 101 independently evaluates a failure, thereby intensively performing alarm processing. The existence of packages that do is eliminated. Therefore, each of the packages 102 _{1 to} 102 _N performs the specific operation of the failed package, so that the failure evaluation process can be performed at a higher speed and the reliability of the system can be improved.

Second Embodiment

FIG. 5 shows the configuration of a failure evaluation system according to the second embodiment of the present invention. This second
In the embodiment, the first to N-th packages 302 ₁ to 30 3 which are dependent on the main signal are provided on the alarm notification bus 301.
2 _N is connected, and one format conversion package 303 is connected. The first to N-th packages 302 _{1 to} 302 _N are the first to N-th packages 302 _{1 to} 302 _N shown in the first embodiment.
It has almost the same functional configuration as the Nth packages 102 _{1 to} 102 _N. Thus, for example, package 30
For 2 ₁ are denoted by the same reference numerals in FIG. 2 the same parts, a description thereof will be omitted. Also, for the second to Nth packages 302 _{2 to} 302 _N , the subscripts of the same parts will be changed appropriately, and the description thereof will also be appropriately omitted.

The failure evaluation system of the second embodiment is different from the first embodiment in that, in the second embodiment, the failure evaluation units 115 _{1 to} 115 _N each determine a failure of their own package. In addition, the information is directly transmitted to the corresponding failure information transmitting units 112 _{1 to} 112 _N.

The format conversion package 303 receives a failure information transmitted from the alarm notification bus 301 to the own package and receives the failure information. The format conversion package 303 receives the failure information and formats it according to an interface with an external device based on the received failure information. It is composed of an information assembling unit 312 that performs conversion, and an information transmitting unit 313 that transmits information converted by the information assembling unit 312 to an external device.

Next, focusing on the first package 302 _1, illustrating the operation of the above configuration of the failure evaluation systems. First fault detection unit 114 of the package 302 in _one
When detecting a failure in its own package, ₁ transmits the failure information to the failure information transmitting unit 112 ₁ . In the failure information transmitting unit 112 _1, assembling the failure information into frames of a predetermined format.

FIG. 3 shows a frame format of the failure information. The frame 200 of the failure information is
A frame synchronization unit 201, a transmission destination address 202, a transmission source address 203, a variable length data unit 204, and a data length unit 20 representing the data length of the data unit 204
5 and a CRC code 206 for detecting a bit error by a binary polynomial. Here, as the source address 203, the mounting position of the corresponding package or a package ID uniquely specified in the package is used. Also, the destination address 202
In this frame for transmitting the failure information, “FFh” indicating all of the _{first to} Nth packages 302 _{1 to} 302 _N as destinations is written. Data section 20
The 4 coded information failure information detected by the failure detection unit 114 ₁ is stored.

A frame of the fault information having such a structure is created.
When this is completed, the failure information transmitting unit 112 ₁Is the bus monitoring unit 11
1₁Notify that data to be notified has been created
And the bus monitoring unit 111₁This fault information until
Retain information. Bus monitoring unit 111₁Is the warning notification bus 3
01 is monitored for data transmission. Soshi
The other package 302 is placed on the alarm notification bus 301.
_Two~ 302_NIs sending data.
The package 302₁Failure information transmitter 1
12₁Even if there is a transmission request from
Data transmission is not performed. This is the day
Of the package 302 in which the failure occurred by avoiding the collision of data
In order not to make it impossible. Bus monitoring unit 111₁Is
No data is transferred on the alarm notification bus 301
In this case, the failure information transmitting unit 112₁To notify the alarm
The data including the failure information is transmitted to the bus 301.

The self-package is placed on the alarm notification bus 301.
When failure information indicating a failure is transmitted, the bus monitoring unit 111
₁Receives the failure information frame
Part 113₁Received at (contents of data section 204)
And failure information transmitting unit 112₁Comparison with data that exists in
Do. As described above, the failure information frame
The destination addresses 202 are the first to N-th packets.
Page 302₁~ 302 _N"FF" indicating all of
h ”is written on the alarm notification bus 301.
The transmitted data is the first to Nth packages 302₁~
302_NAre all information that can be referred to. That is,
1 package 302₁If there is no failure,
Report receiver 113₁Data and failure information transmitting unit 1
12₁The data present in should match.

If the two data are different, the bus monitor 111 ₁ instructs the failure information transmitter 112 ₁ to retransmit. As a result, for example, 3 times transmission when the operation has been or different and transmitted data and package internal fault information is repeated, the bus monitor 111 ₁ any failure in the first package 302 ₁ as the own package a notification to that effect to the fault evaluation unit 115 ₁ determines that there is.

As described above, the failure information receiving unit 113₁Is my package
Has been described for receiving fault information on
In some cases, the first package 302₁Failure information receiving unit 11
3₁Is another package 302_Two~ 302_NFailure information from
Information or other information, the destination address 202
First package 302₁Place to directly specify the address of
If it is “FFh” indicating all packages as destinations
If the data is transmitted together with the source address 203 of the frame,
Unit 204 will be stored. This stored information
For the failure information, the failure evaluation unit 115₁Sent to
Will be. As described above, the failure evaluation unit 115₁The first
1st to Nth packages 302₁~ 302 _NBecause of
Fault information will be supplied.

FIG. 6 shows a state where the failure evaluation unit performs the failure evaluation. Failure evaluation unit 115 ₁ performs a first package 302 _first and share a CPU (not shown) as necessary with other circuit parts, also a control program stored in a storage medium such as a ROM (not shown) As a result, judgment control relating to the failure rating is performed.

First, the CPU uses the first package as its own package.
Package 302₁Whether itself is detecting a fault
Is checked (step S201). The first package
Page 302₁If the failure itself is detected (Y),
First package 302 ₁It is determined that the failure is itself.
You may not be able to refuse. Other package 30
2_Two~ 302_NOf the first package 302 due to the failure of the first package 302
₁If the same detection is performed as if there is a fault
It is. Therefore, in this case, as an additional judgment,
Transmitted through the alarm notification bus 101 of the fault assessment system
Due to the dependency of the main signal, the package corresponding to the upstream
Check whether a failure has been detected (step
S202). And a failure is detected in the package on the upstream side
If not (N), step S203
Proceeds to the first package 302 ₁Judge as failure
(Step S203). In this case, the failure information transmission unit
112₁Is notified that the package is out of order
And the failure information transmitting unit 112₁Is the destination address 202
Alarm notification bus 30 as the ID of the frame conversion package
1 (step S204). In addition,
Fixed part 115₁Together with the defective lamp in its package
116₁Lights up to notify maintenance personnel.
Step S205).

[0054] If detecting a failure in the package that corresponds to the upstream side in step S202 (Y), does not determine the first package 302 ₁ fault (step S20
6). In this case, the failure lamp 116 ₁ is not turned on.

[0055] If in step S201 as the first package 302 ₁ itself as a self packages are not subjected to detection of the failure (N), other corresponding to the downstream side in relation to the main signal described above package has detected a failure in which whether the check is made has the potential to cause failure of the first package 302 ₁ (step S207). If such a possibility is present (Y), it determines that the first package 302 ₁ failure proceeds to step S203, turns on the failure LED 116 ₁ with causing the transmission of frame conversion package . This is intended to be left to the final judgment of the maintenance person. Otherwise (N) in step S207,
It would not determine that the first package 302 ₁ failure proceeds to step S206.

[0056] Now, the fault evaluation unit 115 ₁ is step S2
If the package is determined to be faulty as indicated by 03,
In the failure evaluation system according to the second embodiment, step S20
As shown in 4 because frame conversion package delivery is performed to the first package 302 ₁ format conversion package 303 from, which will be described. When the failure evaluation unit 115 ₁ determines that the package is out of order,
The information is notified to the fault information transmitting unit 112 _1. In the failure information transmitting unit 112 ₁ generates a frame 200 of failure information illustrated in FIG. 3 as described above on the basis of this. At this time, the destination address 202 is set as the ID of the frame conversion package. The created failure information frame 200 is sent out on the alarm notification bus 301.

The failure information receiving unit 311 of the format conversion package 303 constantly monitors the alarm notification bus 301. The failure information receiving unit 311 receives only the frame whose transmission destination address 202 matches the ID of the own package 303. When such a frame is received, the failure information receiving unit 311 extracts the destination address 202 and the failure information data stored in the data unit 204 from among them, and notifies them to the information assembling unit 312. Information assembling unit 312
Performs format conversion conforming to the interface with the external device to which the alarm is notified based on the failure information data. The failure information after format conversion is transmitted to the information transmitting unit 31.
Sent to 3. The information transmitting unit 313 transmits this to the external device to which the alarm is notified.

Thus, the failure lamps 116 ₁ to 116 ₁
16 _N in addition to notifying the failure of each individual package 302 ₁ to 302 _N is performed in, for the desired external device, any of the package 302 so that information about whether a failure is notified.

As described above, the failure evaluation of the second embodiment
In the configuration system, each of the
Package 302₁~ 302_NIndependently evaluates failures
This eliminates the package that performs alarm processing intensively.
Has been removed. Therefore, the specific action of the failed package
Each package 302₁~ 302_NIs to do
As a result, high-speed failure assessment processing is possible,
The reliability as a system can also be improved. Ma
Each package 302 on the alarm notification bus 301 ₁~ 3
02_NFormat conversion package for common alert notifications
303 is provided so that the
Prepare one format conversion package 303
The individual package 302₁~ 302_NBut like this
Even if you do not have a format conversion function
And the notification of the failure information can be performed. This
As a result, the reliability of the notification in the event of a failure is reduced by the first embodiment.
It will be even better than the fault rating system.

[0060]

As described above, claims 1 and 3
In the described invention, each function-specific package connected to the transmission path performs a fault evaluation, so that the fault evaluation process can be performed at a higher speed, and the reliability of the system can be improved.

Further, according to the second and fourth aspects of the present invention, since each function-specific package connected to the transmission path performs a fault evaluation, it is possible to perform a fault evaluation process at a high speed correspondingly. Not only can the reliability of the device be improved, but also information about the failure can be communicated to a predetermined external device, so that the notification of the failure can be made more reliably and promptly together with the display operation of the display means.

Further, in the failure evaluation system according to the seventh aspect, the external device transmitting means connected to the transmission line has a function of converting a signal format such as a format of information transmitted to the external device. In addition to reducing the signal processing load of the function-specific package, the failure information can be easily communicated to a new external device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a configuration of a failure evaluation system according to a first embodiment of the present invention.

FIG. 2 is a block diagram specifically illustrating a main part of a configuration of a first package according to the first embodiment.

FIG. 3 is a frame configuration diagram showing a frame format of failure information used for alarm information communication in the first embodiment.

FIG. 4 is a flowchart showing a failure evaluation judgment and subsequent processing in a failure evaluation unit of the first embodiment.

FIG. 5 is a block diagram illustrating a configuration of a failure evaluation system according to a second embodiment of the present invention.

FIG. 6 is a flowchart showing a failure evaluation judgment and subsequent processing in a failure evaluation unit of the second embodiment.

FIG. 7 is a block diagram illustrating an outline of a configuration of a conventionally proposed failure evaluation system.

[Explanation of symbols]

101, 301 Alarm notification bus (transmission path) 102 _{1 to} 102 _N 1st package to Nth package 111 Bus monitoring unit 112 Failure information transmission unit 113 Failure information reception unit 114 Failure detection unit 115 Failure evaluation unit 116 Failure lamp 200 Failure information frame 303 Format conversion package 311 Failure information receiving unit 312 Information assembling unit 313 Information transmitting unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 11/22-11/34 G06F 15/16-15/177

Claims (7)

(57) [Claims] A transmission path for transmitting failure information as information relating to a failure; failure detection means for detecting an internal failure; and transmitting the internal failure information obtained by detection of the failure detection means to the transmission path. Failure information transmitting means for sending a path with a transmission source address attached thereto, failure information receiving means for receiving failure information addressed to itself from the transmission path, detection results of the failure detection means, and failure information receiving means Failure determination means for determining the presence or absence of the internal failure using the failure information received by the apparatus, and display means for displaying when the failure is determined by the failure determination means. Are prepared in units of fault detection and fault information, respectively.
A failure evaluation system comprising: a plurality of function-specific packages that independently perform transmission / reception, determination of presence / absence of failure, and display . 2. A transmission line for transmitting failure information as information relating to a failure, failure detection means for detecting an internal failure, and transmitting the internal failure information obtained by detection of the failure detection means to the transmission path. Failure information transmitting means for sending a path with a transmission source address attached thereto, failure information receiving means for receiving failure information addressed to itself from the transmission path, detection results of the failure detection means, and failure information receiving means Failure presence / absence determination means for determining the presence / absence of the internal failure using the failure information received by the controller; display means for displaying the internal failure when the failure presence / absence determination means determines the failure; Notification information transmitting means for transmitting to the transmission line as information for notifying a predetermined external device when the internal failure is determined by the determining means, respectively. It is prepared by ability units, detection of each failure, transmission and reception of failure information
A plurality of function-specific packages for independently performing communication, determination of presence / absence of failure, and display, a receiving unit for receiving information transmitted from the notification information transmitting unit to the transmission line, and information received by the receiving unit. And a transmitting means for transmitting the data to the predetermined external device. 3. Transmission of failure information as information relating to the failure.
The transmission path to reach and each package prepared for each function are
Failure detection means for detecting a failure, and detection of the failure detection means.
The internal failure information obtained by the
Failure information transmitting means for transmitting with a source address attached;
Failure information is received from the transmission line
Fault information receiving means, and detection results and faults of the fault detecting means.
Using the failure information received by the information receiving means,
A failure determination means for determining the presence or absence of an internal failure;
The internal failure is determined by the failure presence / absence determining means.
Display means for displaying the failure information when the failure information is transmitted.
The communication means is connected to the transmission path including its own package.
Send out failure information to all packages
And the failure information receiving means in its own package
When the same failure information is not received from the transmission line,
When two or more are consecutive, it is determined that the package has failed.
And a plurality of functional packages as described above.
Characterized failure rating system. 4. Transmission of failure information as information relating to the failure.
The transmission path to reach and each package prepared for each function are
Failure detection means for detecting a failure, and detection of the failure detection means.
The internal failure information obtained by the
Failure information transmitting means for transmitting with a source address attached;
Failure information is received from the transmission line
Fault information receiving means, and detection results and faults of the fault detecting means.
Using the failure information received by the information receiving means,
A failure determination means for determining the presence or absence of an internal failure;
The internal failure is determined by the failure presence / absence determining means.
Display means for displaying the time, and the failure determination means
When the internal failure is determined by
Sent to the transmission path as information to notify external devices
Notification information transmitting means for transmitting the failure information.
Stage connected to the transmission line containing its own package
Sends failure information to all packages
The failure information receiving means in its own package
The same failure information as above is not received from the transmission line.
When several consecutive times, it is judged that the package has failed.
A plurality of function-specific packages, and information sent to the transmission path from the notification information sending means.
Receiving means for receiving the
Transmitting means for transmitting information to the predetermined external device.
A fault evaluation system , comprising: an external device transmitting means . 5. Transmission of failure information as information relating to a failure.
The transmission path to reach and each package prepared for each function are
Failure detection means for detecting a failure, and detection of the failure detection means.
The internal failure information obtained by the
Failure information transmitting means for transmitting with a source address attached;
Failure information is received from the transmission line
Fault information receiving means, and detection results and faults of the fault detecting means.
Using the failure information received by the information receiving means,
A failure determination means for determining the presence or absence of an internal failure;
The internal failure is determined by the failure presence / absence determining means.
Display means for displaying this when the malfunction is detected.
The disconnecting means is configured to determine whether the failure of the own package is the failure detecting means.
Detected by other packages and those packages in other packages.
When the cage is determined to have not failed,
Fault is detected by the fault detecting means, and
When the other package is determined to be faulty,
The upstream package that transmits the signal detects a fault.
If not, the failure of its own package
Downstream side detected by the output means and transmitting the main signal
The package has detected a failure, and this is
When there is a possibility of causing a cage failure
In this case, the package is determined to be faulty and
Otherwise, it is determined that the package has not failed.
And a plurality of function-specific packages.
A failure rating system. 6. Transmission of failure information as information relating to a failure.
The transmission path to reach and each package prepared for each function are
Failure detection means for detecting a failure, and detection of the failure detection means.
The internal failure information obtained by the
Failure information transmitting means for transmitting with a source address attached;
Failure information is received from the transmission line
Fault information receiving means, and detection results and faults of the fault detecting means.
Using the failure information received by the information receiving means,
A failure existence judging means for judging whether a fault of the internal, the
The internal failure is determined by the failure presence / absence determining means.
Display means for displaying the time, and the failure determination means
When the internal failure is determined by
Sent to the transmission path as information to notify external devices
Notification information sending means for determining whether or not there is a failure.
The stage indicates that the failure of its own package is detected by the failure detection means.
Is detected by another package, and those packages are
The package has not failed and the package
Is detected by the failure detection means, and
The main signal is issued when the package is determined to be defective.
Failure is detected in the upstream package to be transmitted.
When there is no failure, the failure of its own package
The downstream path detected by the stage and transmitting the main signal
The package has detected a failure, and this is its own package.
In each case where there is a possibility that the failure has occurred
It is determined that its own package has failed.
In this case, determine that the package is
A plurality of function-specific packages, and information transmitted to the transmission path from the notification information transmitting means.
Receiving means for receiving the
Transmitting means for transmitting information to the predetermined external device.
Failure characterized by having external device transmitting means
Rating system. 7. Transmission of failure information as information relating to a failure.
Transmission path to reach the failure, failure detection means for detecting an internal failure, and a failure detection means.
Transmitting the internal failure information obtained by detecting the stage
A failure information sender that sends a route with the source address
And receiving fault information addressed to itself from the transmission path.
Failure information receiving means, and a detection result of the failure detection means.
And the failure information received by the failure information receiving means.
Failure determining means for determining the presence or absence of the internal failure
The internal failure is determined by the failure determination means.
Display means for displaying when the power supply is cut off,
When the internal failure is determined by the determination means
Is transmitted as information for notifying a predetermined external device
Equipped with notification information sending means to send to the road
A plurality of functional packages prepared in units, and information transmitted to the transmission path from the notification information transmitting means.
Receiving means for receiving a plurality of
Information from one of the function-specific packages
Message is sent to the destination
Convert to the signal format to be sent to a predetermined external device and
External device transmitting means comprising transmitting means for transmitting to the device;
A fault rating system comprising: