JPH0983615A - Alarm collection device, system therefor and bus connection type processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of the workability of maintenance, to remove erroneous information outputted from a monitor means, which is accom panied by on-off of power supply, while the collection of information outputted from the other monitor means during an operation is continued and to always collect an alarm definitely. SOLUTION: A voltage monitor circuit 26 monitors whether power voltage for operating the plural monitor circuits 12, namely, the output voltage of a power source circuit 13 is less than a prescribed level or not. When the output voltage of the power source circuit 13 is less than the prescribed level, alarm information outputted from the monitor circuit 12 operating by power supply from the power source circuit 13 is interrupted in an AND circuit 25, and the collection of alarm information in a monitor control circuit 21 is inhibited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in, for example, an optical terminal device, and collects alarm information obtained by monitoring a plurality of monitoring targets such as a main signal processing unit by a plurality of monitoring means. Alarm collection device.

Further, the present invention is used in, for example, an optical terminal device and the like, and an alarm collecting device collects alarm information generated in each of a plurality of monitored objects such as a package through a single transmission path. Regarding the system.

Further, the present invention is used, for example, in an optical terminal device or the like, and for example, a slave provided in the package via a bus provided in a package mounting body such as a backboard on which a plurality of packages can be mounted. CPU
For example, the present invention relates to a bus connection type processing system in which predetermined processing is performed under the control of the control means while the predetermined processing means exchanges predetermined data with a control means such as a master CPU.

[0004]

[Prior art]

(First Prior Art) An optical terminal device or the like has a large number of main signal processing units that perform various kinds of signal processing, and the operating state of each main signal processing unit is monitored.

FIG. 12 is a diagram showing a schematic configuration of a system for performing such monitoring. As shown in this figure, a plurality of main signal processing units 1 (1-1 to 1-m in this case) are provided with a monitoring circuit 12 that monitors the operating state of the main signal processing circuit 11. Further, the supervisory control circuit 21 of the supervisory control unit 20 collects the alarm information S1 (S1-1 to S1-m) output by each supervisory circuit 12 when an abnormality is detected, and performs centralized surveillance.

The main signal processing section 1 is provided with a power supply circuit 13 and a power supply switch 14, respectively, so that the operation can be individually stopped. Then, at the time of maintenance or the like, it is possible to maintain a specific main signal processing section 1 while keeping the other main signal processing section 1 operating.

However, when the power switch 14 is turned off or on, the operation of the monitoring circuit 12 may become unstable, and the monitoring circuit 12 may output a false alarm as shown in FIG. When such an erroneous alarm is output, erroneous display or erroneous switching occurs in the monitor control unit 20.

To prevent this, as shown in FIG.
The maintenance control unit 20 is provided with a maintenance switch 24, and when any one of the main signal processing units 1 is maintained, this maintenance switch 24 is used.
It is conceivable that the operation of the supervisory control circuit 21 is stopped by turning OFF.

However, with such a construction, the maintenance switch 24 needs to be operated, which complicates the maintenance work, and also causes an operation when any one of the main signal processing units 1 is maintained. There is a problem that the other main signal processing units 1 cannot be monitored.

(Second Prior Art) In an optical terminal device, etc.,
A part of the circuit is packaged in order to facilitate the expansion and contraction of the device scale or to improve maintainability. Then, in the same manner as described above, when monitoring the operating states of the various processing units, the alarm information generated in each package is collected by the alarm collection unit.

FIG. 15 is a diagram showing a schematic configuration of such a system. Multiple packages 3 as shown in this figure
0 (here, 30-1 to 30-m) are multiplexed output units 3 respectively.
2 is provided, where each information included in the alarm information S5 (parallel data consisting of information of n alarm items) generated in each package 30 is multiplexed to generate one alarm information S6 for transmission. Is generated. The multiplex output section 32 outputs an alarm via a signal line common to each package 30 only when the output permission signal S7 (S7-1 to S7-m) corresponding to itself is given from the alarm collection section 40. An alarm signal S6 is sent to the collecting unit 40.
Is output.

The alarm collector 40 periodically outputs an output permission signal.
S7-1 to S7-m are sequentially output, and the alarm signal S6 output from each multiplex output section 32 is received in response to this. That is, the alarm collector 40 collects the alarm signal S6 in a time division manner.

However, with the above-mentioned configuration, the alarm information about a certain package 30 can be collected only periodically. Therefore, when an alarm that occurs / recovers is generated within a period shorter than the collection period. However, there is a possibility that the alarm information regarding this alarm may not be collected by the alarm collection unit 40.

(Third Prior Art) When a part of a circuit is packaged by an optical terminal device or the like, and each package has a processor such as a CPU, a specific processor is used as a master. It is widely practiced that each processor performs processing while other data is used as a slave and necessary data (for example, a command) is exchanged between the master processor and the slave processor.

FIG. 16 is a diagram showing a schematic configuration of such a system. As shown in this figure, the master CPU 601 provided in the package 600 includes a package connector 602 provided in the package 600 and a backboard 8.
00 is coupled to the backboard connector 801 provided on the bus interface unit (bus IF).
Part) 62, the package connector 602, and the backboard connector 801 to be connected to the bus 81 provided on the backboard 800, and each package 700 (700-1 to 700-n) is provided via this bus. It is connected to the slave CPU 701. The slave CPU 701 provided in each of the packages 700 is coupled with the package connector 702 and the backboard connectors 802 (802-1 to 802-n) provided in the backboard 800, and thereby the bus interface unit (bus IF
Section 72, the package connector 702, and the backboard connector 802, and is connected to the bus 81.

By the way, if the package 700 is inserted or removed while either the master CPU 601 or the slave CPU 701 is sending a command, the bus 81
The commands transmitted over may be erroneous.

Therefore, conventionally, the master CPU 601 and each slave CPU 701 exchange commands by the procedure shown in FIG. 17, for example. That is, the master CPU 601 and each slave CPU 70
1 is command error addition detection means 601a and 7 respectively.
01a, and the transmission side adds error detection information to the command. On the receiving side, the presence or absence of an error is determined based on the error detection information added to the command. If there is no error, a response process for the command is performed, and if there is an error, the command is discarded. On the sending side,
If no response comes after waiting a predetermined time after transmitting the command, the command is retransmitted.

However, as described above, if the command error is relieved by the communication procedure, the processing of the master CPU 601 and each slave CPU 701 becomes complicated. Moreover, since the end of insertion / removal cannot be detected,
Even if the data is retransmitted, an error may occur again, resulting in an increase in communication traffic. If you take a long interval to retransmit to prevent this, sending and receiving of commands will be significantly delayed,
Processing delay will occur. Furthermore, it is difficult to correctly detect all the errors, and there is a risk of erroneous commands being recognized as correct commands and causing malfunctions.
If error detection information is complicated and error detection is performed by advanced processing, command errors can be detected with a high probability, but traffic increases due to an increase in the amount of information, and hardware for error detection processing is increased. There is a problem that the scale of ware and software increases.

[0019]

As described above, the conventional alarm collecting device for collecting the monitoring results by the plurality of monitoring means is as follows.
Since the alarm information output from the monitoring means cannot be recognized as erroneous information when the power switch is turned on / off on the monitoring means side, an erroneous monitoring operation is performed based on this erroneous information. there were. Also,
If a measure is taken to prevent the reception of erroneous information by stopping the operation when turning on / off the power of any of the monitoring means, the workability of maintenance may be deteriorated or other operation may be performed. There was a problem that the information output from the monitoring means could not be collected.

As described above, in the alarm collecting system in which the alarm collecting device collects the alarm information obtained by the plurality of monitoring means in a time division manner through the signal line common to the plurality of monitoring means, There is a problem in that alarm information regarding an alarm that occurs / recovers within a period shorter than the cycle may not be received, resulting in inaccurate alarm monitoring.

As described above, when data errors occurring on the bus at the time of inserting / removing the package are relieved by the communication procedure, the processing of each processing means becomes complicated, the communication traffic increases, the data transfer delays, There have been various problems such as occurrence of malfunction due to omission of detection of data error, or complication of configuration for error detection.

The present invention has been made in consideration of such circumstances, and its purpose is, firstly, to prevent deterioration of workability of maintenance and to output from other monitoring means during operation. Power ON / O while continuing to collect the information
It is an object of the present invention to provide an alarm collecting device that can always collect alarms accurately by eliminating erroneous information output from the monitoring means in association with the FF.

Secondly, it is an object of the present invention to provide an alarm collection system capable of correctly collecting even alarms which are generated and returned instantaneously, and by which alarms can always be monitored accurately. .

Thirdly, it is possible to relieve a data error that occurs on the bus at the time of inserting / removing the package without depending on the communication procedure, and thus it is possible to easily cope with the occurrence of the data error accompanying the insertion / removal of the package. Another object of the present invention is to provide a bus connection type processing system that can be quickly and accurately performed.

[0025]

In order to achieve the above-mentioned first object, a first invention is that a power supply voltage for operating each of a plurality of monitoring means such as a monitoring circuit is below a predetermined level. It is provided with a voltage monitoring means such as a voltage monitoring circuit for monitoring whether or not there is an alarm and a warning collection prohibiting means such as an AND circuit. When the alarm collection prohibiting means causes the power supply voltage to fall below the predetermined level. The collection of alarm information output from the monitoring means, which is judged by the voltage monitoring means, is prohibited.

In order to achieve the second object, the second
The invention of claim 1 is provided corresponding to each of a plurality of monitoring targets such as packages, and the alarm information generated in each corresponding monitoring target is fetched in a predetermined cycle shorter than the shortest time for the alarm to be generated and restored. , A plurality of alarm holding units such as an alarm loading unit that holds until the next capturing, and alarm information held by the corresponding alarm holding units, which is provided corresponding to each of the plurality of alarm holding units. For example, a plurality of alarm information transmitting means such as a multiplex output portion for transmitting to an alarm information transmission transmission path in response to an output instruction from an alarm collecting device such as an alarm collecting portion, and each of the plurality of alarm holding means. Is provided corresponding to
When the alarm information held by the corresponding alarm holding means changes, a plurality of alarm change notifying means such as a state change detecting section for notifying the alarm collecting device of the change, and the plurality of alarm holding means, respectively. In response to a change in the alarm information held by the corresponding alarm holding means, the alarm collecting device is instructed to release the alarm information in a predetermined manner in response to a change in the alarm information. A plurality of state prohibition means such as a state change detection unit, and the alarm collection device shares the alarm change notification means in response to the notification by the alarm change notification means. To the alarm information transmitting means corresponding to the alarm holding means, when the output instruction is not given to the other alarm information transmitting means, for example, output permission is given. An output instruction means such as a processing means, and a sender of the alarm information when the alarm information sent by the alarm information sending means in response to the output instruction given by the output instruction means is correctly received. The alarm information sending means and the release holding means for giving the release instruction to the capture prohibiting means corresponding to the alarm holding means in common, for example, output permission processing means.

In order to achieve the second object, the third object
In the invention, the alarm holding means, the alarm change notifying means and the import prohibition means in the second invention are incorporated and held for each information of each alarm item when the alarm information includes information of a plurality of alarm items. The processing for monitoring whether there is any change in the status and prohibiting the import are performed.

Further, in order to achieve the third object, the fourth object
The invention of, for example, while providing a signal line such as a control signal line to the package mounting body such as a backboard,
For each of the plurality of packages, when a corresponding package is inserted into or removed from the package mounted body, a predetermined insertion / removal notification signal is output to the signal line, for example, an insertion / removal notification means such as an insertion / removal monitoring circuit, and a corresponding package. Is removed from the package mounted body, the coupling between the processing means and the bus is disconnected earlier than the coupling between the insertion / removal notification means and the signal line, and the corresponding package is attached to the package mounted body. When the device is mounted, it is provided with connector means, for example, a package connector and a backboard connector, which achieves the coupling of the processing means and the bus later than the coupling of the insertion / removal notification means and the signal line, and Each of the control means and the processing means is provided with a data transfer stop means, and by the data transfer stop means, When the insertion in notification signal to the serial signal line is outputted is so as to stop the transfer of the data.

By taking such measures, the first
According to the invention, the power supply voltage being supplied is below a predetermined level, and collection of alarm information output from the monitoring means that may be unstable in operation is prohibited,
No false alarm information is captured.

According to the second and third aspects of the present invention, the alarm information generated in the monitored object is fetched and held by the alarm holding means at a predetermined cycle shorter than the shortest time for the alarm to be generated and restored. It Then, when the state of the alarm information taken in by the alarm holding means changes, the fact is notified to the alarm collecting device by the alarm change notifying means, and the new taking of the alarm information by the alarm holding means is prohibited. Prohibited by means. In this state, when the alarm collecting device gives an output instruction to the alarm information transmitting means by the output instructing means in response to receiving the notification, the alarm information transmitting means holds the alarm in the alarm holding means. The existing alarm information is sent to the transmission line for transmitting the alarm information. When the alarm collecting device correctly receives the alarm information sent to the transmission line for transmitting the alarm information, the cancellation instruction means gives the cancellation instruction to the acquisition prohibition means, and the new acquisition prohibition status of the alarm information is prohibited. Is released.

According to the fourth aspect of the invention, when the package is inserted into or removed from the package mounted body, the package mounted body is provided with the insertion / removal notification means provided in the package. A predetermined insertion / removal notification signal is output to the signal line. The connector means disconnects the processing means and the bus from each other earlier than the connection between the insertion / removal notification means and the signal line when the corresponding package is removed from the package mounted body, and the corresponding package is When mounted on the package mounting body, since the coupling between the processing means and the bus is achieved slower than the coupling between the insertion / detachment notification means and the signal line, disconnection of the processing means from the bus and When the processing means and the bus are coupled, the insertion / removal notification signal is output to the signal line. Then, in the control means and the processing means, when the insertion / removal notification signal is output to the signal line, data exchange is stopped,
Data is not exchanged during the period when data transmitted through the bus may be erroneous.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of an alarm collection system configured using the alarm collection device according to the present embodiment. The same parts as those in FIG. 12 are designated by the same reference numerals.

In the figure, reference numeral 2 is a monitoring control unit to which the alarm collecting apparatus according to the present embodiment is applied, and m (m is a predetermined integer) main signal processing unit 1 (1-1 ~ 1-m) to collect and monitor alarms. The monitoring control unit 2 includes a monitoring control circuit 21, a power supply circuit 22, a power supply switch 23, and m AND circuits 25 (25-1 to 25-m).
And m voltage monitoring circuits 26 (26-1 to 26-m). The main signal processing unit 1 also has a main signal processing circuit 11, a monitoring circuit 12, a power supply circuit 13, and a power supply switch 14.

First, the main signal processing section 1 includes a main signal processing circuit 1
1 performs predetermined signal processing (for example, signal demultiplexing processing in an optical terminal device). The monitoring circuit 12 monitors the operating state of the main signal processing circuit 11, and the monitoring circuit 12 outputs alarm information S1 (S1-1 to S1-m) when an abnormality is detected. Each unit of the main signal processing unit 1 operates by receiving power supply from the power supply circuit 13. When performing maintenance of the main signal processing unit 1, etc., the power switch 13 is turned on by the power switch 14.
The operation can be stopped for each main signal processing unit 1 by stopping the operation.

The monitoring control circuit 21 outputs the alarm information S1 output from the monitoring circuit 12 of each main signal processing unit 1 to the alarm information S1.
The data is collected via the ND circuit 25 and the operating state of each main signal processing unit 1 is monitored.

The operation of the power supply circuit 22 is turned ON / OFF by the power supply switch 23, and supplies power to each unit in the monitor control unit 2 in the ON state.

The AND circuits 25 correspond to the main signal processing units 1, respectively, and the alarm information S1 output from the corresponding monitoring circuit 12 of the main signal processing unit 1 is given to one input terminal thereof. The AND circuit 25 and the voltage monitoring circuit 26 are paired one by one, and the other input terminal of the AND circuit 25 has an output signal S2 (S2
-1 to S2-m) has been entered. And AND circuit 25
Indicates that the output signal S2 of the paired voltage monitoring circuit 26 is "H".
Only when it is at the level, the monitoring control circuit 21 outputs the alarm information S1 output from the corresponding monitoring circuit 12 of the main signal processing unit 1.
Give to

The voltage monitoring circuits 26 correspond to the same main signal processing units 1 as the corresponding AND circuits 25, respectively, and the output voltage S3 of the power supply circuit 13 of the main signal processing unit 1 corresponds to each of them. (S3-1 ~ S3-m) has been received.

FIG. 2 is a diagram showing an example of a specific configuration of the voltage monitoring circuit 26. The voltage monitoring circuit 26 shown in this figure
Is composed of a voltage comparison circuit 25a and a reference voltage source 25b.

[0040] The voltage comparator circuit 25a becomes an operational amplifier, the output voltage S3 to be monitored to the non-inverting input terminal, and a reference voltage of a predetermined level of reference voltage source 25b is generated at the inverting input terminal V ^- is input respectively Output voltage S
3 the reference voltage V ^- only the "H" level output signal S2 when it is higher. The reference voltage V ⁻ is set to be smaller than the level V of the voltage output by the power supply circuit 13 when the power switch 14 is ON and larger than the minimum level at which the monitoring circuit 12 can operate stably.

Next, the operation of the alarm collection system configured as above will be described. Now, when the power switch 14 is turned on in the main signal processing section 1-1 and the power circuit 13 is supplying power to each section in the main signal processing section 1-1, the output voltage of the power circuit 13 Is above the reference voltage V ⁻ as shown in FIG. Therefore, the output signal S2-1 of the voltage monitoring circuit 26-1 is at "H" level, and the monitoring circuit 12 of the main signal processing section 1-1 detects an abnormality and outputs the alarm information S1.
If -1 is output, this alarm information S1-1 is AND circuit 25-1.
And is given to the monitor control circuit 21 as it is and collected by the monitor control circuit 21.

From this state, when the power switch 14 of the main signal processing unit 1-1 is turned off to perform maintenance of the main signal processing unit 1-1 (at time T1 in FIG. 3), the power supply circuit 13 is accompanied by this. The level of the output voltage is gradually decreased as shown in FIG. The level of the output voltage of the power supply circuit 13 is a reference voltage V ^- when the below, the voltage monitoring circuit 26-1 output signals S2-1
Is set to "L" level (time T2 in FIG. 3).

In this way, the output signal S2 of the voltage monitoring circuit 26-1
When -1 is at "L" level, the AND circuit 25-1 is closed, and even if the alarm information S1-1 is output from the monitoring circuit 12, this alarm information S1-1 is output by the AND circuit 25-1. It is blocked and is not given to the monitor control circuit 21. Therefore,
Even if the operation of the monitoring circuit 12 becomes unstable due to the influence of the decrease in the output voltage of the power supply circuit 13 and the alarm information is output as shown in FIG. 3, this is blocked by the AND circuit 25-1 and the monitoring control circuit. Not collected at 21.

Although the operations of the AND circuit 25 and the voltage monitoring circuit 26 for the main signal processing section 1-1 have been described above, the AND circuit 25 and the voltage corresponding to the other main signal processing section 1 are also described. The monitoring circuit 26 operates in the same manner as described above.

As described above, according to the present embodiment, the supervisory control unit 2 includes the respective power supply circuits 13 of the main signal processing unit 1.
Of the output voltage is monitored, and the alarm information S1 output from the monitoring circuit 12 of the main signal processing unit 1 whose level is lower than the reference level V ⁻ is not collected.

Therefore, even if the monitoring circuit 12 erroneously outputs the alarm information S1 when the power switch 14 is turned off due to the decrease in the supplied power, the erroneous operation corresponding to the erroneous alarm information S1 is monitored and controlled. It is possible to prevent the circuit 21 from performing, and it is possible to reliably collect and monitor alarms.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a diagram showing a schematic configuration of the alarm collection system according to the present embodiment. The same parts as those in FIG. 15 are denoted by the same reference numerals.

The alarm collecting system has m packages 3 (3-1 to 3-m) (m is a predetermined integer) and an alarm collecting unit 4. The package 3 further includes an alarm capturing unit 31, a multiplexing output unit 32, and a state change detecting unit 33.

The alarm capturing unit 31 captures the alarm information S5 generated by each unit in the package to which the alarm capturing unit 31 belongs in a certain fixed period and holds it until the next capturing timing. Then, the alarm capturing unit 31 multiplexes the retained alarm information S5 ′ with the multiplexed output unit 32 and the state change detection unit 33.
Respectively.

The alarm capturing section 31 is provided with an alarm capturing timing signal S8 having a predetermined cycle, and the alarm capturing section 31 captures the alarm information S5 in synchronization with the alarm capturing timing signal S8. .
The cycle of the alarm import timing signal S8, that is, the cycle of importing the alarm information S5 in the alarm import unit 31 is set to be shorter than the shortest time at which various alarms are issued / recovered. Further, the alarm capturing unit 31 is provided with the alarm capturing prohibition signal S9 output from the state change detecting unit 33. When the alarm capturing prohibition signal S9 is supplied, the alarm information is not captured, Continue to hold the alarm information that is already held.

The multiplexed output unit 32 is the alarm capturing unit 31.
Since the alarm information S5 given by the above includes alarm information for n items (n is a predetermined integer), these are multiplexed into one alarm information S6 for transmission. Then, the multiplexed output unit 32 outputs the output permission signal S7 (S7-1 to S7) corresponding to itself.
Only when -m) is given from the alarm collecting unit 4, the alarm information S6 is output to the alarm collecting unit 40 via the signal line common to each package.

The state change detecting section 33 includes an alarm capturing section 3
It is monitored whether or not the state of the alarm information S5 given from 1 has changed from the state at the time of the previous state change. Then, the state change detection unit 33 notifies the alarm information S
When it is detected that the state 5 has changed, the state change signal S10 (S10-1 to S10-m) for notifying the change
And the alarm capture prohibition signal S9 is output. In addition, the state change detection unit 33 determines that the collection completion signal S11 corresponding to itself.
In response to (S11-1 to S11-m) being given from the alarm collection unit 4, the output of the alarm capture prohibition signal S9 is stopped.

The alarm collector 4 collects and monitors alarm information from each package 3. The alarm collection unit 4 has an output permission processing means 4a. The output permission processing unit 4a outputs only the output permission signal S7 corresponding to the package 3 in which the state change has occurred, based on the state change signal S10 output from the state change detection unit 33 of each package 3. Is to do.

Next, the operation of the alarm collection system configured as above will be described. First, in the package 3-1, the alarm capturing unit 31 periodically captures the alarm information S5 at the timing synchronized with the alarm capturing timing signal S8. In addition, the acquisition cycle of the alarm information S5 is
Since various alarms are set to be shorter than the shortest time for alarms to be generated and restored, even alarms that occur momentarily are always taken in.

On the other hand, the state change detecting section 33 monitors whether or not the state of the alarm information S5 'held and output by the alarm capturing section 31 has changed from the state at the time of the previous state change. ing. When the state change detection unit 33 detects a state change, the state change detection unit 33 outputs the alarm take-in prohibition signal S9 to the alarm take-in unit 31 to prohibit new taking-in of the alarm information S5 and changes the alarm state. Status change signal S10-
1 is output to the alarm collection unit 4.

When the alarm collection unit 4 receives the state change signal S10-1, the output permission signal for permitting the output of the alarm state of the package 3 corresponding to the state change signal S10-1, that is, the package 3-1. Output S7-1 to package 3-1.

In the package 3-1, this output permission signal S7
-1 is received by the multiplexing output unit 32. Then, in response to this, the multiplexing output unit 32 multiplexes the alarm information S5 ′ held and output by the alarm capturing unit 31 to generate alarm information S6 for transmission, and then transmits this to the alarm collecting unit 4. Output.

The alarm collection unit 4 receives the alarm information S6 output from the multiplex output unit 32 of the package 3-1. When the reception of the alarm information S6 is completed, the collection completion signal S11-1 for notifying that is output to the state change detection unit 33 of the package 3-1.

Upon receiving this signal, the state change detection section 33 receives the state change signal S7-1 and the alarm capture prohibition signal S9.
Both are released, the normal alarm capturing operation is restarted, and the above processing is repeated thereafter. The same operation is performed for the other packages 3.

As described above, according to the present embodiment, since the alarm information S5 is fetched in various alarms in a cycle shorter than the shortest time for the alarm to be generated and restored, the alarm fetching unit 31 can reliably handle any alarm. Can be taken into. Further, when a change occurs in the alarm state, new acquisition of alarm information is prohibited, so that an alarm due to an abnormality that occurs / recovers instantaneously can be surely retained.

The alarm information that is surely fetched and held in this way is output to the alarm collecting unit 4 only when the alarm state changes. Therefore, when the alarm state does not change, the package 3 does not output the alarm information S6 to the alarm collection unit 4, so that the traffic of the transmission path for the alarm information S6 becomes very low. In particular, in the case of the present embodiment, the number of times alarm information is fetched is increased in comparison with the conventional method because various alarms are fetched in a cycle shorter than the shortest time for the alarm to be generated and restored. The alarm information can be efficiently transmitted without increasing the transmission amount.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a diagram showing a schematic configuration of a package in the alarm collection system according to this embodiment. The same parts as those in FIG. 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

The alarm collecting system according to the present embodiment has a similar structure to the alarm collecting system according to the second embodiment, except that a package 5 having the structure shown in FIG. There is.

As shown in FIG. 5, the package 5 includes a multiplexed output unit 31 and n alarm capturing units 51 (51-1 to 51-).
n), and n state change detection units 52 (52-1 to 52-n) and a state change signal output unit 53.

The alarm capturing unit 51 is provided with n alarm items (n items) included in the alarm information S5, and information of each alarm item is input. Further, the alarm capturing timing signal S8 is input to each alarm capturing unit 51, and each alarm capturing unit 51 captures and retains the information of the corresponding alarm item at the timing synchronized with the alarm capturing timing signal S8.

The state change detecting section 52 includes the alarm capturing section 5
N pieces of information are provided corresponding to each of 1, and the information held and output by the corresponding alarm capturing unit 51 is input. The state change detection unit 52 monitors whether or not the state of the information given from the alarm acquisition unit 51 has changed from the time when the state change occurred last time. When the state change detection unit 52 detects that the state of the information has changed, the state change detection unit 52 outputs a change detection signal S12 (S12-1 to S12-n) for notifying the change to the state change signal output unit 53. Also, the alarm capture prohibition signal S9 (S9-1 ~
S9-n) is output to the corresponding alarm capturing unit 51. Further, the state change detection unit 52 uses the collection completion signal S11.
In response to the input from the alarm collection unit 4, the output of the alarm capture prohibition signal S9 is stopped.

The state change signal output section 53 is composed of, for example, an OR circuit, and if any of the change detection signals S12 output by each state change detection section 52 is at "H" level, the state change signal S10 becomes "H". Level.

FIG. 6 is a diagram showing an example of a specific configuration of one alarm capturing section 51 and a state change detecting section 52 corresponding to the alarm capturing section 51. As shown in this figure, the alarm capturing unit 51 includes a selector 51a and a flip-flop 51b.

In the selector 51a, the data input terminal A receives information about an alarm item in the alarm information S5, the data input terminal B receives the output of the flip-flop 51b, and the select signal input terminal S receives information from the state change detector 52. The alarm capture prohibition signal S9 to be output is input.
Then, the selector 51a selects the data input terminal A when the alarm capture inhibition signal S9 is at the "L" level, and selects the data input terminal B when the alarm capture inhibition signal S9 is at the "H" level, and the selection terminal thereof. To the flip-flop 51b.

In the flip-flop 51b, the data input terminal D receives the output of the selector 51a, and the clock input terminal C receives the alarm fetch timing signal S8. The flip-flop 51b fetches and holds the output of the selector 51a in synchronization with the alarm fetch timing signal S8.

On the other hand, the state change detecting section 52 comprises a flip-flop 52a and an XOR circuit 52b. In the flip-flop 52a, the output of the flip-flop 51b of the alarm capturing unit 51 is input to the data input terminal D, and the collection completion signal S11 is input to the clock input terminal C. Then, the flip-flop 52a fetches and holds the output of the flip-flop 51b in synchronization with the collection completion signal S11.

In the XOR circuit 52b, the output of the flip-flop 51b of the alarm capturing section 51 is input to one input end, and the output of the flip-flop 52a is input to the other input end. Then, the XOR circuit 52b takes the exclusive OR of the output of the flip-flop 51b and the output of the flip-flop 52a, and outputs the result as the alarm capture inhibition signal S9 and the change detection signal S12.

Next, the operation of the alarm collection system configured as above will be described. Since various signals are exchanged between the alarm collection unit 4 and the package 5, the various signals are exchanged between the alarm collection unit 4 and the package 3 in the second embodiment. Now, the operations of the alarm capturing unit 51 and the state change detecting unit 52 in the package 5 will be described.

In the package 5, first, each alarm fetching section 51 periodically fetches the information of each alarm item of the alarm information S5 at the timing synchronized with the alarm fetch timing signal S8. The information acquisition cycle is set to be shorter than the shortest time required for various alarms to be issued and restored, so that even alarms that occur momentarily are always acquired.

On the other hand, in each state change detecting section 52, it is monitored whether or not the information held and output by the corresponding alarm capturing section 51 has changed from the state at the time when the previous state change occurred. . When the state change detecting unit 52 detects the state change, the state change detection signal S
9 is output to the corresponding alarm capturing unit 51. As a result, in each state change detection unit 52, the acquisition of new information is prohibited only for the alarm item whose status has changed, and the acquisition of information for other alarm items is continued.

When the state change detector 52 detects a state change, it sets the change detection signal S12 to "H" level indicating that the alarm state has changed. In response to this, the state change signal output unit 53 outputs the state change signal S10 to the alarm collection unit 4.

Next, the operation of the alarm capturing unit 51 and the state change detecting unit 52 will be described in more detail by taking as an example the case where an alarm which is instantly generated and restored occurs with respect to an alarm item to be captured by the alarm capturing unit 51-1. Explained.

In the initial state, no alarm is generated for the alarm item to be captured by the alarm capturing unit 51-1 and the input of the alarm capturing unit 51-1 is "L", and the change detection signal S12-1 is also output. Not set and set to "L".

From this state, when an alarm is generated for the alarm item to be captured by the alarm capturing unit 51-1 and the input of the alarm capturing unit 51-1 changes from "L" to "H", the select signal input of the selector 51a is input. Since the initial state of the input of the terminal S is "L", the output of the selector 51a changes from "L" to "H" (at T11 in FIG. 7). The flip-flop 51b holds this change at the rise of the alarm capture timing signal S8, so that it is synchronized with the first rise of the alarm capture timing signal S8 after the time T11 when the output of the selector 51a changes from "L" to "H". Then, the output of the flip-flop 51b changes from "L" to "H" (at time T12 in FIG. 7). Thereby, the XOR circuit 52b
Output becomes "H", and the change detection signal S12-1 and the alarm capture prohibition signal S9-1 both become "H".

When the alarm capture prohibition signal S9-1 becomes "H", the input of the select signal input terminal S of the selector 51a becomes "H", so that the output of the flip-flop 51b becomes the output of the selector 51a, and the flip-flop 51b becomes the output. 51b
It is prohibited to import new information into.

When the alarm collection unit 4 completes the collection of the alarm information S6 and changes the collection completion signal S11 from "L" to "H", the output of the flip-flop 52a becomes "H",
The output of the XOR circuit 52b becomes "L". As a result, both the change detection signal S12-1 and the alarm capture prohibition signal S9-1 become "L" (time T13 in FIG. 7).

When the alarm capture prohibition signal S9-1 becomes "L", the input of the select signal input terminal S of the selector 51a becomes "L", so that the output of the selector 51a becomes the latest alarm information and the flip-flop 51b. At, alarm capture is resumed. At this time, the alarm is already recovered and the input of the selector 51a, that is, the flip-flop 51b.
Of the flip-flop 51b at the next rising edge of the alarm fetch timing signal S8.
Output becomes "L". As a result, the XOR circuit 52b
Output becomes "H", the change detection signal S12-1 and the alarm capture prohibition signal S9-1 both become "H", and the alarm capture is prohibited (at T14 in FIG. 7).

When the alarm collection unit 4 completes the collection of the alarm information S6 and changes the collection completion signal S11 from "L" to "H",
The output of the flip-flop 52a becomes "L" and XOR
The output of the circuit 52b becomes "L". As a result, both the change detection signal S12-1 and the alarm capture prohibition signal S9-1 become "L", and the alarm capture is started again (time T15 in FIG. 7).

While the alarm capturing unit 51-1 and the state change detecting unit 52-1 are performing the above-described operations, the other alarm capturing unit 51 and the state change detecting unit 52 are also included in the alarm capturing unit 51-1. And the same operation as that of the state change detection unit 52-1 is performed. At this time, even if the alarm import prohibition signal S9-1 given to the alarm import part 51-1 is set to "H" and the alarm import is prohibited in the alarm import part 51-1, another alarm import part 51-1 is prohibited. Then, unless the corresponding alarm capture prohibition signal S9 is "H", the alarm capture is continued.

As described above, according to the present embodiment, as in the case of the second embodiment, the alarm information S5 is fetched in a cycle shorter than the shortest time for which various alarms are generated and restored. The alarm capturing unit 51 can reliably capture any alarm. Further, when a change occurs in the alarm state, new acquisition of alarm information is prohibited, so that an alarm due to an abnormality that occurs / recovers instantaneously can be surely retained.

The alarm information which is surely fetched and held in this way is output to the alarm collecting unit 4 only when the alarm state changes. Therefore, when the alarm state does not change, the package 3 does not output the alarm information S6 to the alarm collection unit 4, so that the traffic of the transmission path for the alarm information S6 becomes very low. In particular, in the case of the present embodiment, the number of times alarm information is fetched is increased in comparison with the conventional method because various alarms are fetched in a cycle shorter than the shortest time for the alarm to be generated and restored. The alarm information can be efficiently transmitted without increasing the transmission amount.

Further, according to the present embodiment, the processing of fetching the alarm information, monitoring the state change, and prohibiting the fetch in one package 5 are individually performed for each alarm item. Even if the alarm state changes with respect to other alarm items until the alarm collecting unit 4 completes the collection of the alarm information S6 with the change of the alarm state, the alarm information after the change is displayed. It can be captured by the alarm capture unit 51,
It is possible to properly monitor the alarm as described above.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a diagram showing a schematic configuration of the bus connection type processing system according to the present embodiment. The same parts as those in FIG. 16 are designated by the same reference numerals.

In this system, while the master CPU 61 and the slave CPU 71 exchange data such as commands via the bus 81, the slave CPU 71 operates as the master CPU 6
Predetermined processing is performed under the control of 1.

The master CPU 61 includes a bus interface section (bus IF section) 62, a control signal line interface section (control signal line IF section) 63, and a package connector 6.
4 together with the package 6.

The slave CPU 71 is provided in the package 7 together with the bus interface section (bus IF section) 72, the insertion / extraction monitoring circuit 73, the control signal line interface section (control signal line IF section) 74 and the package connector 75.

The bus 81 includes a control signal line 82, a pull-up resistor 83, backboard connectors 84 and 85 (85-1 to 85-85).
-n) is provided on the backboard 8.

The package 6 is formed by connecting the package connector 64 and the backboard connector 84, and the package 7 (7-1 to 7-n) is formed by connecting the package connector 75 and the backboard connector 85. Are mounted on the backboard 8.

In the package 6, the bus IF unit 6
2 is connected to the master CPU 61. Bus IF
The portion 62 is connected to the bus 81 via the package connector 64 and the backboard connector 84 when the package connector 64 and the backboard connector 84 are coupled. The bus IF section 62 serves as an interface between the master CPU 61 and the bus 81.

The control signal line IF section 63 is the master CPU 61.
It is connected to the. The control signal line IF section 63 is connected to the control signal line 82 via the package connector 64 and the backboard connector 84 when the package connector 64 and the backboard connector 84 are coupled. The control signal line IF unit 63 is connected to the master C
An interface is established between the PU 61 and the control signal line 82.

The master CPU 61 is a slave CPU 71.
In addition to the processing means for transmitting and receiving data to and from the slave CPU 71 and controlling the slave CPU 71, when the control signal line 82 is in the insertion / extraction state described later, the slave CPU 71
It has a data transfer stop means 61a for performing processing for stopping the transfer of data to and from.

On the other hand, in the package 7, the bus IF unit 7
2 is connected to the slave CPU 71. Also bus I
The F portion 72 is connected to the bus 81 via the package connector 75 and the backboard connector 85 when the package connector 75 and the backboard connector 85 are coupled. The bus IF unit 72 serves as an interface between the slave CPU 71 and the bus 81.

The insertion / extraction monitoring circuit 73 sets the control signal line 82 to the insertion / extraction state (inactive state), which will be described later, when the package 7 in which it is provided is inserted into or removed from the backboard.

The control signal line IF section 74 is the slave CPU 7
1 connected. In addition, the control signal line IF section 74 controls the control signal line 82 via the package connector 75 and the backboard connector 85 when the package connector 75 and the backboard connector 85 are coupled.
Connected to. The control signal line IF section 74 serves as an interface between the slave CPU 71 and the control signal line 82.

The slave CPU 71 is the master CPU 61.
In addition to processing means for performing a predetermined process while exchanging data with the master CPU, a process for stopping the exchanging of data with the master CPU 61 when the control signal line 82 is in an inactive state described later. It has a data exchange stopping means 71a for carrying out.

FIG. 9 is a diagram showing a specific configuration of the insertion / extraction monitoring circuit 73, the package connector 75, and the backboard connector 85. As shown in this figure, the insertion / extraction monitoring circuit 7
3 includes a separation detecting mechanism 73a and a switch 73b. The separation detection mechanism 73a monitors whether or not the package 7 and the backboard 8 have a predetermined positional relationship in the mounted state, and controls the switching of the switch 73b when the package 7 is separated from the backboard 8. is there. The switch 73b has a fixed contact connected to the electrode 75a of the package connector 75. Normally, the electrode 75a is brought into an open state, and the electrode 75a is grounded only when switched by the separation detecting mechanism 73a.

The package connector 75 includes five electrodes 7
It has 5a, 75b, 75c, 75d, and 75e.
As described above, the fixed electrode of the switch 73b is provided on the electrode 75a, the control signal line IF section 74 is provided on the electrode 75b, and the negative side of the power supply circuit 76 (not shown in FIG. 8) is provided on the electrode 75c. The positive electrode side of the power supply circuit 76 is connected to the electrode 75d, and the bus IF section 72 is connected to the electrode 75e. On the other hand, the backboard connector 85 includes electrodes 85a and 85 corresponding to the electrodes 75a to 75e, respectively.
It has b, 85c, 85d, and 85e.

Now, the respective electrodes 75a to 75e, 85a to 85
e is the electrodes 85a to 85 when the package 7 is inserted and removed.
The amount of protrusion of the electrodes 75a to 75e in the direction along the moving direction (vertical direction in the drawing) with respect to e is equal to that of the electrodes 85a to 85e.
Are almost equal to each other. On the other hand, the electrode 75
The amount of protrusion of a to 75e is such that the electrodes 75a, 75b and 75c are long and the electrode 75e is short, and the electrode 75d is intermediate between the electrodes 75a, 75b and 75c and the electrode 75e. The amount of protrusion of the electrode 75e is such that the electrode 75e and the electrode 85e are in contact with each other when the package connector 75 and the backboard connector 85 are completely coupled.

Next, the operation of the bus connection type processing system configured as described above will be described. First, when the package 7 is mounted on the backboard 8, the switch 73b is open in the insertion / removal monitoring circuit 73 of each package 7, so that the control signal line 82 has the pull-up resistor 83.
Is pulled up to a predetermined potential via (active state).

Master CPU 61 and slave CPU 7
1 monitors the state of the control signal line 82 via the control signal line IF section 74, and if the potential of the control signal line 82 is in the active state as described above, the data transmission / reception is performed by a known procedure. 81, the master CPU 61 controls the slave CPU 71, and the slave CPU 71 performs predetermined processing under the control of the master CPU 61.

When any one of the packages 7 starts to be pulled out from the above state and the package connector 75 and the backboard connector 85 are slightly separated as shown in FIG. 10A, and the separation detection mechanism 73a detects this. , The separation detection mechanism 73a switches the switch 73b, and the electrode 75
Ground a. Here, the separation detection mechanism 73a is connected to the electrode 75.
The switch 73b is switched by detecting the separation between the package connector 75 and the backboard connector 85 earlier than the a to 75e separating from the electrodes 85a to 85e. Therefore, by switching the switch 73b and grounding the electrode 75a, the control signal line 82 is grounded and the control signal line 82 becomes inactive.

Now, the master CPU 61 and the slave CP
When the control signal line 82 is in the inactive state, the U71 functions as the data transfer stopping means 61a, 71a, and does not send data to the bus 81 or take in data that has arrived via the bus 81.

When the package 7 is further pulled out, after a delay time D1 shown in FIG. 11, the electrodes 75e and 85e are first separated from each other as shown in FIG. 10 (b). As a result, the bus IF section 72 is separated from the bus 81. At this time, even if the state of the bus 81 becomes unstable,
Since the master CPU 61 and the slave CPU 71 have already stopped exchanging data, erroneous data will not be taken in.

Thereafter, as shown in FIG. 11, the electrode 75d and the electrode 85d are separated from each other after a delay time D2 caused by the difference in length between the electrode 75e and the electrode 75d, and the positive side of the power supply circuit 76 is separated from the backboard 8 side. Be done. Then Figure 1
As shown in FIG. 1, the electrode 75d and the electrodes 75a, 75b, 75
After a delay time D3 caused by the difference in length from c,
As shown in FIG. 10A, the electrode 75a and the electrode 85a are separated from each other, the electrode 75b and the electrode 85b are separated from each other, and the electrode 75c and the electrode 85c are separated from each other, and the insertion / extraction monitoring circuit 73 and the control signal line IF unit 74 control signals. The negative side of the power supply circuit 76 and the negative side of the power supply circuit 76 are separated from the backboard 8 side, respectively, and the package 7 is completely removed from the backboard 8.

Thus, the package 7 is the backboard 8
When completely removed from the control signal line 82, the grounding of the control signal line 82 is released, so that the control signal line 82 returns to the active state. Then, the master CPU 61 and the slave CPU
71 restarts the transfer of data via the bus 81.

On the contrary, the package 7 is replaced by the backboard 8
In the case of inserting the control signal line 82, the control signal line 82 is grounded by first contacting the electrode 75a and the electrode 85a from the state shown in FIG. 10C as shown in FIG. 10B.
As a result, the control signal line 82 is inactivated, and the master CPU 61 and the slave CPU 71 stop transmitting and receiving data.

After this, contrary to the above-described extraction, the negative side of the power supply circuit 76 is connected to the backboard 8 side after a delay time D3, and then the bus IF section 72 is connected to the bus 81 after a further delay time D2. Connected. Then, after the bus IF section 72 is connected to the bus 81, when the package connector 75 is completely coupled to the backboard connector 85, the separation detecting mechanism 73a switches the switch 73b to the open side and returns the control signal line 82 to the active state.

As described above, according to this embodiment, when the package 7 is inserted and removed, the bus IF for the bus 81 is
The control signal line 82 is set to the inactive state before the part 72 is disconnected and connected. The master CPU 61 and the slave CPU 71 stop data exchange when the control signal line 82 is inactive. Therefore, even if the state becomes unstable when the bus IF unit 72 is disconnected from the bus 81, the master CPU
The erroneous data will not be exchanged between the 61 and the slave CPU 71. As a result, there is no need to monitor a data error or resend data when an error occurs, and the scale of hardware and software can be reduced and the traffic of the bus 81 can be reduced.

When the insertion / removal of the package 7 is completed,
Immediately, the control signal line 82 is returned to the active state, and the transfer of data by the master CPU 61 and the slave CPU 71 is restarted. Therefore, the suspension period of the data transfer by the master CPU 61 and the slave CPU 71 can be minimized, and the system can be operated efficiently.

The present invention is not limited to the above embodiments. For example, in the first embodiment, the monitoring target is the main signal processing circuit 11, but the monitoring target may be any as long as it is necessary to monitor the operating state.

In the second embodiment, the alarm information S5 includes information on a plurality of alarm items, but the present invention is also applicable to the case where only one item of alarm information is handled for one monitoring target. Can be applied. In this case, of course, it is not necessary to perform multiplexing when sending the alarm information to the transmission line.

In the fourth embodiment, the control signal line 82 whose pull-up state is the active state is grounded, so that the control signal line 82 is in the inactive state and the insertion / removal notification signal is sent. Although it is in the output state, a signal having a specific level or pattern may be sent from the package side to the control signal line 82.

Besides, various modifications can be made without departing from the scope of the present invention.

[0119]

According to the first aspect of the present invention, for example, a voltage monitor such as a voltage monitor circuit for monitoring whether or not a power supply voltage for operating each of a plurality of monitoring means such as a monitor circuit is below a predetermined level. Means and an alarm collection prohibition means such as an AND circuit, and the alarm collection prohibition means outputs from the monitoring means that the power supply voltage is determined to be below the predetermined level by the voltage monitoring means. Since it is prohibited to collect alarm information that is generated, maintenance workability is prevented from deteriorating, and while collecting the information output from other operating monitoring means,
The alarm collecting apparatus can eliminate the erroneous information output from the monitoring means when the power is turned ON / OFF and can always collect the alarm accurately.

The second invention is provided corresponding to each of a plurality of monitoring targets such as packages, and alarm information generated in each corresponding monitoring target is set to a predetermined time shorter than the shortest time for the alarm to be generated and recovered. A plurality of alarm holding means, such as an alarm take-in unit, which holds the data until the next taking-in, and the plurality of alarm holding means are provided corresponding to the respective alarm holding means. A plurality of alarm information transmitting means such as a multiplex output unit for transmitting the alarm information being transmitted to a transmission line for transmitting alarm information according to an output instruction from an alarm collecting device such as an alarm collecting unit; A plurality of alarm holding means provided to correspond to each of the alarm holding means, and when the alarm information held by the corresponding alarm holding means changes, a plurality of notifications are sent to the alarm collecting device. For example, an alarm change notification unit such as a state change detection unit is provided corresponding to each of the plurality of alarm holding units, and responds in response to a change in the alarm information held by the corresponding alarm holding unit. The alarm collecting unit is provided with a plurality of, for example, a state change detecting unit or the like capturing prohibiting unit that prohibits capturing of the alarm information by the alarm holding unit until a predetermined cancellation designation is made from the alarm collecting unit, and the alarm collecting unit is provided with the alarm. In response to the notification by the change notification means, the alarm information transmission means corresponding to the alarm holding means common to the alarm change notification means does not give an output instruction to the other alarm information transmission means. When the output instruction is given by the output instruction means, for example, output instruction means such as output permission processing means for giving the output instruction When the alarm information sent by the output means is correctly received, the cancel instruction is given to the capture prohibiting means corresponding to the alarm holding means common to the alarm information sending means from which the alarm information is sent. For example, a release instruction means such as an output permission processing means is provided.

The third aspect of the present invention includes the alarm holding means, the alarm change notification means, and the capture prohibition means in the second aspect of the invention, when the alarm information includes information of a plurality of alarm items. For each information, the processing of capturing / holding, monitoring the presence / absence of state change, and prohibiting the capturing is performed.

According to the second or third aspect of the present invention, it is possible to correctly collect even alarms that occur and recover momentarily, and as a result, it is possible to always properly and accurately monitor alarms. Become a system.

According to the fourth aspect of the invention, a package mounted body such as a backboard is provided with a signal line such as a control signal line, and a corresponding package is provided in each of the plurality of packages. An insertion / extraction notification means, such as an insertion / extraction monitoring circuit, which outputs a predetermined insertion / extraction notification signal to the signal line when being inserted / extracted from
When the corresponding package is removed from the package mounted body, the coupling between the processing means and the bus is disconnected earlier than the coupling between the insertion / removal notification means and the signal line, and the corresponding package is removed from the package covered body. When it is mounted on the mounting body, the connection means for connecting the processing means and the bus is achieved later than the connection between the insertion / removal notification means and the signal line, for example, connector means including a package connector and a backboard connector. Further, each of the control means and the processing means is provided with a data transfer stop means, and the data transfer stop means stops the transfer of the data when the insertion / removal notification signal is output to the signal line. Therefore, it is possible to relieve the data error that occurs on the bus when inserting or removing the package, regardless of the communication procedure. It can be, thereby easily coping with respect to the occurrence of data errors due to insertion and removal of the package, quickly, and a bus connection type processing system capable of performing the accurately.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of an alarm collection system configured using an alarm collection device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of a specific configuration of a voltage monitoring circuit 26 in FIG.

FIG. 3 is a diagram showing an example of operation timing of the alarm collection system shown in FIG.

FIG. 4 is a diagram showing a schematic configuration of an alarm collection system according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a schematic configuration of a package in an alarm collection system according to a third embodiment of the present invention.

6 is a diagram showing an example of a specific configuration of one alarm capturing unit 51 in FIG. 5 and a state change detecting unit 52 corresponding to the alarm capturing unit 51. FIG.

7 is a diagram showing an example of the operation timing of each part in the alarm capturing part 51 and the state change detecting part 52 in FIG.

FIG. 8 is a diagram showing a schematic configuration of a bus connection type processing system according to a fourth embodiment of the present invention.

9 is a diagram showing a specific configuration of an insertion / extraction monitoring circuit 73, a package connector 75, and a backboard connector 85 in FIG.

FIG. 10 is a diagram showing transitions of states of a package connector 75 and a backboard connector 85 when the package 7 is inserted / removed.

FIG. 11 is a view showing the timing of disconnecting and connecting each part when the package 7 is inserted and removed.

FIG. 12 is a diagram showing a conventional configuration example of a system that monitors the operating states of a large number of main signal processing units.

FIG. 13 is a diagram for explaining the occurrence status of false alarms in the system shown in FIG.

FIG. 14 is a diagram showing a modified configuration example of the monitoring control unit 20 shown in FIG. 1.

FIG. 15 is a diagram showing a conventional configuration example of a system in which an alarm collection unit collects alarm information generated in each of a plurality of packages.

FIG. 16 is a diagram showing a conventional configuration example of a system in which each processor performs processing while exchanging necessary data between a master processor and a slave processor.

FIG. 17 is a master CPU 601 and a slave C in FIG.
The figure which shows an example of the procedure of data transmission / reception with PU701.

[Explanation of symbols]

1 (1-1 to 1-m) ... Main signal processing unit 11 ... Main signal processing circuit 12 ... Monitoring circuit 13 ... Power supply circuit 14 ... Power switch 2 ... Monitoring control unit 21 ... Monitoring control circuit 22 ... Power supply circuit 23 ... Power supply Switch 25 (25-1 to 25-m) ... AND circuit 26 (26-1 to 26-m) ... Voltage monitoring circuit 3 (3-1 to 3-m) ... Package 31 ... Alarm capture unit 32 ... Multiplexed output Part 33 ... State change detecting part 4 ... Alarm collecting part 4a ... Output permission processing means 5 ... Package 31 ... Multiplexing output part 51 (51-1 to 51-n) ... Alarm capturing part 52 (52-1 to 52-n) ) ... State change detection section 53 ... State change signal output section 6 ... Package 61 ... Master CPU 62 ... Bus interface section (bus IF section) 63 ... Control signal line interface section (control signal line IF)
64) Package connector 7 ... Package 71 ... Slave CPU 72 ... Bus interface section (bus IF section) 73 ... Insertion / extraction monitoring circuit 74 ... Control signal line interface section (control signal line IF)
75) Package connector 8 ... Backboard 81 ... Bus 82 ... Control signal line 83 ... Pull-up resistors 84, 85 (85-1 to 85-n) ... Backboard connector

Claims (4)

[Claims] 1. An alarm collection device for collecting alarm information obtained by monitoring a plurality of monitoring targets by a plurality of monitoring means, wherein a power supply voltage for operating each of the plurality of monitoring means is predetermined. Voltage monitoring means for monitoring whether or not the voltage is below the level, and prohibiting collection of alarm information output from the monitoring means, which is determined by the voltage monitoring means that the power supply voltage is below the predetermined level An alarm collection device, comprising: 2. An alarm collection system in which an alarm collection device collects alarm information generated in each of a plurality of monitoring targets through a single transmission path, and is provided corresponding to each of the plurality of monitoring targets. The alarm information generated by the corresponding monitoring target is captured in a predetermined cycle shorter than the shortest time for alarm generation / recovery, and a plurality of alarm holding means for holding until the next acquisition, and a plurality of alarm holdings A plurality of alarm information sending means provided corresponding to each of the means and sending the alarm information held by the corresponding alarm holding means to the transmission path according to an output instruction from the alarm collecting device; A plurality of alarm holding means provided corresponding to each of the plurality of alarm holding means and notifying the alarm collecting device to that effect when the alarm information held by the corresponding alarm holding means changes. Alarm change notification means and alarm information in the corresponding alarm holding means provided in correspondence with each of the plurality of alarm holding means and corresponding to the change in the alarm information held by the corresponding alarm holding means And a plurality of capture prohibiting means for prohibiting the capture of the alarm until a predetermined cancellation designation is made from the alarm collecting device, and the alarm collecting device, in response to receiving the notification by the alarm change notifying means,
Output instructing means for giving the output instruction to the alarm information transmitting means corresponding to the alarm holding means common to the alarm change notifying means when the output instruction is not given to the other alarm information transmitting means, In response to the output instruction given by the output instruction means, the alarm information sent out by the alarm information sending means can be correctly received, and in common with the alarm information sending means of the sender of the alarm information. An alarm collection system, comprising: release instruction means for giving the release instruction to the capture prohibiting means corresponding to the alarm holding means. 3. The alarm holding means, the alarm change notifying means, and the import prohibition means, when the alarm information includes information of a plurality of alarm items, capture / hold and change of the status for each information of each alarm item. The alarm collection system according to claim 2, wherein each processing of monitoring presence / absence and prohibiting capturing is performed. 4. A processing means provided in the package via a bus provided in a package mounting body capable of mounting a plurality of packages, while exchanging predetermined data with a predetermined control means. In a bus connection type processing system that performs a predetermined process under the control of a control means, the package mounted body is provided with a signal line, and a corresponding package is inserted into and removed from the package mounted body in each of the plurality of packages. And a signal line during insertion / removal notification means for outputting a predetermined insertion / removal notification signal to the signal line when the package is removed from the package mounted body. The connection between the processing means and the bus is released earlier than before, and when the corresponding package is mounted on the package mounting body, Than binding of the insertion in the notifying means and the signal line and a connector means to achieve slow binding to said bus and said processing means, further wherein each of said control means and said processing means,
A bus connection type processing system comprising a data transfer stop means for stopping the transfer of the data when the insertion / removal notification signal is output to the signal line.