JP2644204B2 - Signal link test execution judgment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal link test execution judging method and, more particularly, to a signal link for confirming the normal operation of level 3 between its own station and an adjacent station directly connected by the signal link. N to determine whether to perform the test
o. The present invention relates to a signal link test execution determination method in a seven-signal system.

[0002]

2. Description of the Related Art FIG. FIG. 10 is a system block diagram showing an example of a signal link test execution determination method in the seven-signal system. FIG. 10 is a flowchart showing a signal link start-up procedure up to the execution of the signal link test in FIG.

[0003] Referring to FIG. 9, this prior art system has its own level 3 directly connected by a signal link 7.
Processing processor (L3 processing processor) 10 and adjacent station 6
The L3 processor 10 comprises a level 2 processor (L2 processor) 11, a signal link control unit 12 for controlling activation / deactivation of a signal link, and a signal link test unit 1 for generating and transmitting a signal link test signal.
5 is provided.

Next, the signal link start-up operation of this conventional example will be described with reference to FIG.

First, the signal link control unit 12 requests the L2 processor 11 to start a signal link, and the L2 processor 11 notifies the L2 processor 11 that the signal link 7 has been established between the adjacent station 6 and the level 2 by a start OK notification. Notify the signal link control unit 12.

The signal link control unit 12 confirming that the level 2 has been established issues a signal link test execution request to the signal link test unit 15 to confirm the establishment between the adjacent station 6 and the level 3 by the link test request. .

The signal link test unit 15 sends a signal link test signal to perform a signal link test. When the adjacent station 6 does not have the signal link test function, the adjacent station 6
NG report of the signal link test result due to a response time-out
Send to

[0008] The signal link control unit 12 receiving the NG report of the test result issues a restart request to the L2 processor 11.

[0009]

However, the conventional No. 1 is a conventional type. In the signal link test execution determination method in the seven signal system, when the adjacent station does not have a signal link test function and does not return a response to the signal link test signal, the signal link between the own station and the adjacent station between level 3 Is determined not to be established, there is a problem that an adjacent station having no signal link test function cannot be incorporated into its own signal network.

The present invention has been made in view of the fact that it is necessary to take timing to wait for a response from an adjacent station in order to perform a signal link test, and the adjacent station has a signal link test function. No. irrespective of whether or not it is possible to incorporate it into its own signal network. An object of the present invention is to provide a signal link test execution determination method in a seven-signal system.

[0011]

According to the present invention, No. 3 for confirming the normality of the operation of level 3 between its own station and an adjacent station directly connected by a signal link. 7 is a signal link test execution determination method in the seven signal system, wherein a timeout value of the signal link test can be set to station data for each signal link set to the adjacent station, and the station data is read out during the signal link test. A signal link test execution determination method comprising selecting means for selecting the signal link test execution if the timeout value is set and selecting the signal link test non-execution if the time-out value is not set. can get.

Further, the own station has a level 2 processor,
The signal link control section controls the start / stop of the signal link, a signal link test section that generates and sends a signal link test signal, and a station data management section that manages the timeout value of the signal link test response. A signal link test execution determination method is provided, wherein the signal link test section is directly connected to each of the adjacent stations by each of the signal links.

Further, the signal link control unit issues a signal link activation request to the level 2 processor to activate the signal link, and if the activation result is OK, the signal link test unit sends a signal link test to the signal link test unit. Makes a request, the signal link test unit inquires of the station data management unit whether the activated signal link has a timeout value for a signal link test, and the station data management unit transmits the activated signal. The signaling link set to which the signaling link belongs is obtained from the link number, and the timeout value is passed to the signaling link test unit. The signaling link test unit that has obtained the timeout value sets the timeout value to a logical value “1”. A signal link test signal is generated and transmitted to the adjacent station, and read when a signal link test is performed. The timeout value is set as a timer and waits for a response from the adjacent station until a timeout occurs. When there is no response from the adjacent station and the timeout occurs, the signaling link test unit reports a test result NG to the signaling link control unit. If there is a response from the adjacent station before the timeout, a test result OK is reported, and the signal link control unit confirms that the signal link has been established if the test result of the signal link is OK. A signal link test execution determination method characterized by incorporating an adjacent station into the signal network of the own station is obtained.

Further, when the adjacent station having no signal link test function comes to have the signal link test function, the station data management section receives a signal to change the station data and receives a signal for connecting to the adjacent station. The logical value “1” is set by rewriting the timeout value of the link set, and the signal link test unit acquires the timeout value set by the station data management unit when the signal link test execution cycle for the adjacent station comes. To perform a signal link test,
The signaling link test unit generates and sends a signaling link test signal, sets the timeout value as a timer, waits for a response from the adjacent station until the timeout, and when no signaling is received from the neighboring station, the signaling link test is performed. The test unit reports a test result NG to the signal link control unit. At this time, the signal link control unit issues a request to stop the signal link to the level 2 processor, and disconnects the adjacent station from the signal network of the own station. Thus, a disconnection of the signaling link is confirmed to obtain a signaling link test execution determination method.

[0015]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a system block diagram showing an embodiment of a signal link test execution judging method according to the present invention, wherein a local station has an adjacent station A having a signal link test function and an adjacent station B having no signal link test function. And the system connected to.

The system of this embodiment comprises an L3 processor 1 of the own station, and adjacent stations A2 and B3 which are directly connected to the L3 processor 1 by signal links 4 and 5, respectively.

The L3 processor 1 includes an L2 processor 11, a signal link control unit 12 for controlling activation / deactivation of a signal link, a signal link test unit 13 for generating and transmitting a signal link test signal, and a signal link test. The signal link test unit 13 is directly connected to the adjacent stations A2 and B3 by the signal links 4 and 5, respectively.

Next, the operation of the present embodiment when adjacent stations having the signal link test function and adjacent stations not having the signal link test function coexist will be described with reference to FIGS. 6 will be described together.

FIGS. 2 and 3 are flow charts for explaining the operation of the signal link control unit and the signal link test unit when the signal link is activated in FIG. 1, respectively. FIG. 6 is a flowchart for explaining the operation of the management unit. FIG. 6 is a diagram showing an example of setting a timeout value for each signal link set in FIG.

The signal link control unit 12 issues a signal link activation request to the L2 processor 11 to start up the signal link when the system is restarted, when the signal link fails, or at the request of a maintenance person (step S21). .

Next, the signal link control unit 12 checks whether or not the signal link activation result is OK (S22).
If it is (Y in S22), a signal link test request is made to the signal link test unit 13 (S23).

When the activation is NG (N in S22), the process returns to S21, and the signal link activation request to the L2 processor 11 is made again.

The signal link test unit 13 inquires of the station data management unit 14 whether the activated signal link 4 has a timeout value for the signal link test (S31).

The station data management unit 14 obtains a signal link set to which the signal link belongs from the activated signal link number from FIG. 6 (S41), obtains a time-out value thereof (S42), and outputs the time-out value (S42). (S4
3).

As shown in FIG. 6, if the signal link set is for the adjacent station A2 and the signal link set number is "1", the time-out value "1" is transmitted to the station data management unit 14 by the signal link set. It will be passed to the test unit 13.

The signal link test unit 13 that has obtained the timeout value checks whether or not the signal link test response waiting timeout value is set (S32). Here, since the timeout value "1" is set for the adjacent station A2, the signal link test unit 13 generates and sends out a signal link test signal to execute a signal link test (S33).

Then, the signal link test unit 13 that has performed the signal link test sets the read-out timeout value as a timer (S34), and waits for a response from the adjacent station A2 until the timeout. That is, if N is determined in S36, the process returns to S35.

If there is no response from the adjacent station A2 (N in S35) and a timeout occurs (Y in S36), the signal link test unit 13 reports a test result NG to the signal link control unit 12, while the adjacent station A2 (S35)
Y) Report the test result OK (S37).

The signal link control unit 12 checks whether the test result of the signal link is OK or NG (S24), and if it is Y in S24, confirms that the signal link 4 has been established (S24).
25), incorporate the adjacent station A2 into its own signal network.

When the signal link control unit 12 is notified of the test result NG of the signal link (S37), the result is N in S24, and the process returns to S21 to make a signal link activation request to the L2 processor 11 again.

Next, assuming that the signaling link set is directed to the adjacent station B3 and the signaling link set number is "2" as shown in FIG. 6, a timeout passed from the station data management unit 14 to the signaling link test unit 13 is assumed. Since the value is “FF”, the signal link test unit 13 determines that “timeout value is not set” (N in S32), and executes the signal link test result OK without performing the signal link test.
Return to

The signal link controller 12 determines that the test result is OK.
Is received, it becomes Y in S24, it is confirmed that the signal link has been established, and the adjacent station B3 can be incorporated into its own signal network without performing the signal link test.

Next, the operation when the adjacent station B has the signal link test function will be described with reference to FIGS. 1, 5, 6, 7 and 8.

FIG. 5 is a flowchart for explaining the operation of the station data management unit when the station data is changed in FIG. 1, and FIG. 7 is a flowchart for explaining the operation of the signal link test unit during signal link establishment in FIG. FIG. 8 is a flowchart for explaining the operation of the signaling link control unit when the signaling link test result NG report during the signaling link establishment in FIG. 1 is received.

When the office data management unit 14 receives the office data change notification (S51), it rewrites and corrects the timeout value of the signal link set connected to the adjacent office (S5).
2).

Now, it is assumed that the timeout value for the adjacent station B3 has been corrected and changed from "FF" to "1" as shown in FIG.

The signal link test section 13 determines whether the signal link test execution cycle for the adjacent station B3 has come (S
61), when a signal link test execution cycle comes (Y in S61), the station data management unit 14 is inquired of a timeout value (S62).

Here, since the signal link test response waiting timeout value is set (Y in S63), the signal link test is performed (S64).

The signal link test section 13 generates and sends a signal link test signal, sets a timeout value as a timer (S65), and waits for a response from the adjacent station B3. That is,
In S66, it is checked whether or not there is a response, and in S67, it is checked whether or not a timeout has occurred. If there is no response (N in S66) and a timeout occurs (Y in S67), the signal link test unit 13 reports a test result NG to the signal link control unit 12 (S68).

As described above, when the signal link control unit 12 receives the NG report of the signal link test from the signal link test unit 13 despite the fact that the adjacent station B3 has the signal link test function, The link control unit 12 is L
2 requests the processor 11 to stop the signal link 5 (S
72), the adjacent station B3 is disconnected from its own signal network, and the disconnection of the signal link 5 is confirmed (S73).

If Y in S66, that is, if there is a response,
Thereafter, the flow returns to S61 to periodically execute the signal link test.

[0043]

As described above, according to the present invention, the level 3 communication between the own station and the adjacent station directly connected by the signal link is performed.
No. for confirming the normality of the operation between each other. A signal link test execution determination method in the seven-signal system, wherein a time-out value of the signal link test can be set in the station data for each signal link set to an adjacent station, and the station data is read out during the signal link test to set the time-out value. If there is, a selection means for selecting the execution of the signal link test and selecting the non-execution of the signal link test if the timeout value is not set, that is, as an embodiment, the own station is provided with the level 2 processor and the activation of the signal link A level 3 processing processor comprising a signal link control section for controlling / stopping, a signal link test section for generating and transmitting a signal link test signal, and a station data management section for managing a timeout value of a signal link test response. The signal link test section is configured to be directly connected to each adjacent station by each signal link. This has the effect that all adjacent stations can be incorporated into their own signal network and connected, even if some of them have a signal link test function and some do not. .

Also, when an adjacent station that does not have the signal link test function comes to have this function,
There is an effect that it is possible to cope only by changing the station data.

[Brief description of the drawings]

FIG. 1 is a system block diagram showing an embodiment of a signal link test execution determination method according to the present invention.

FIG. 2 is a flowchart illustrating an operation of a signaling link control unit when the signaling link in FIG. 1 is activated.

FIG. 3 is a flowchart for explaining the operation of a signaling link test unit when the signaling link in FIG. 1 is activated.

FIG. 4 is a flowchart for explaining an operation of a station data management unit at the time of performing a signal link test in FIG. 1;

FIG. 5 is a flowchart for explaining the operation of the station data management unit when changing station data in FIG. 1;

FIG. 6 is a diagram illustrating a setting example of a timeout value for each signal link set in FIG. 4;

FIG. 7 is a flowchart for explaining the operation of the signal link test unit during signal link establishment in FIG. 1;

FIG. 8 is a flowchart illustrating an operation of a signaling link control unit when a signaling link test result NG report during the signaling link establishment in FIG. 1 is received.

FIG. It is a system block diagram which shows an example of the signal link test execution determination method in a 7 signal system.

FIG. 10 is a flowchart showing a signal link start-up procedure up to execution of a signal link test in FIG.

[Explanation of symbols]

 Reference Signs List 1 L3 processor 2 Adjacent station A 3 Adjacent station B 4,5,7 Signal link 6 Adjacent station 11 L2 processor 12 Signal link control unit 13,15 Signal link test unit 14 Station data management unit

Claims (4)

(57) [Claims] 1. No. 1 for confirming the normality of the operation of level 3 between its own station and an adjacent station directly connected by a signal link. 7 is a signal link test execution determination method in the seven signal system, wherein a timeout value of the signal link test can be set to station data for each signal link set to the adjacent station, and the station data is read out during the signal link test. A signal link test execution judging method comprising: selecting means for selecting the signal link test execution when the timeout value is set, and selecting the signal link test non-execution when the timeout value is not set. 2. The self-station comprises a level 2 processor, a signal link control unit for starting / stopping the signal link, a signal link test unit for generating and transmitting a signal link test signal, and a signal link test response. Level 3 comprising a station data management unit for managing the timeout value
The method according to claim 1, further comprising a processing processor, wherein the signal link test unit is directly connected to each of the adjacent stations by each of the signal links. 3. The signal link control unit issues a signal link activation request to the level 2 processor to activate the signal link. If the activation result is OK, the signal link test unit transmits a signal link test to the signal link test unit. Makes a request, the signal link test unit inquires of the station data management unit whether the activated signal link has a timeout value for a signal link test, and the station data management unit transmits the activated signal. The signaling link set to which the signaling link belongs is obtained from the link number, and the timeout value is passed to the signaling link test unit. The signaling link test unit that has obtained the timeout value sets the timeout value to a logical value “1”. Before generating and sending a signal link test signal to said adjacent station and reading it out when performing a signal link test. Set the timeout value as a timer and wait for a response from the adjacent station until timeout,
When there is no response from the adjacent station and time-out occurs, the signal link test unit sends a test result N to the signal link control unit.
G, and if there is a response from the adjacent station before the timeout, a test result OK is reported. If the signal link test result is OK, the signaling link control unit confirms that the signaling link has been established. 3. The signal link test execution determination method according to claim 2, wherein said adjacent station is incorporated into the signal network of said own station upon confirmation. 4. When the adjacent station having no signal link test function comes to have the signal link test function, the station data management section receives a station data change notification and connects to the adjacent station. The signal link test unit rewrites the timeout value of the set to set the logical value to “1”, and the signal link test unit acquires the timeout value set by the station data management unit when the signal link test execution cycle for the adjacent station comes. A signaling link test is performed, the signaling link test unit generates and sends a signaling link test signal, sets the timeout value as a timer, waits for a response from the neighboring station until the timeout, and receives a response from the neighboring station. When the time-out occurs, the signaling link test unit reports a test result NG to the signaling link control unit. 3. The signaling link according to claim 2, wherein the control unit issues a request to stop the signaling link to the level 2 processor, and disconnects the adjacent station from the signaling network of the own station to confirm the disconnection of the signaling link. Test execution determination method.