JP2007142831A - System and device for detecting fault, manager deice, and center device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To correctly and rapidly specify a suspected part with a fault by detecting a defect which is experienced by a user. <P>SOLUTION: A fault detecting system for detecting the fault of a communication system having a hierarchical structure comprises fault detecting devices D-1 to D-9 which are respectively arranged in response to a plurality of lowest-order devices d-1 to d-9 composing the communication system, perform transmission to the corresponding lowest-order devices from a test terminal for transmission so as to exchange a test signal, perform reception by a test terminal for reception from the corresponding lowest-order devices so as to exchange the test signal and to perform a connection test; manager devices M-1 to M-3, U-1 for receiving a test result from the fault detecting devices, and analyzing the suspected part with the fault; and a center device S-1 for receiving an analysis result from the manager devices, and displaying the analysis result. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a failure detection system, a failure detection device, a manager device, and a center device, and more particularly to a failure detection system that performs failure detection of a communication system having a hierarchical structure, a failure detection device, a manager device, and a center device.

  In recent years, as services provided by communication systems have become complicated, a mechanism capable of enhancing field abnormality detection capability, speeding up suspicious device isolation, and saving labor is desired. In addition, in order to improve customer satisfaction of services, a mechanism for detecting defects actually experienced by the user is desired.

  Fault detection in communication systems such as conventional telephones has a monitoring function built into the communication system, and the type and location of the fault is specified by an alarm issued from the monitoring function, and is detected by the monitoring function built into the communication system. For a failure that cannot be performed, a person estimates the type of failure or the suspected device by means of a complaint that a user brings to the call center of the communication system. In addition, the voice continuity test of the telephone is performed by manually confirming voice listening using a telephone.

  Various methods have been devised for automatic test methods relating to speech, but a device that is installed in a communication system is used (see Patent Document 1).

  In Patent Document 2, the test apparatus transmits an audio test signal to a mobile terminal via a communication network, a mobile communication switch, and a radio base station, and the audio test signal sent back by the mobile terminal and the transmitted audio test. It is described that a normal / abnormal communication path is determined by comparing with a signal.

  In Patent Document 3, an automatic incoming call is received in response to a transmission signal from a network, a subscriber number and a voice signal from a line are stored, a line is disconnected, and then automatically transmitted with reference to the stored subscriber number for reproduction sound A call test device for sending a mental number is described.

In Patent Document 4, a test signal that has a spectrum similar to human speech and is understandable and does not correspond to a single speaker is generated, and the test signal that is distorted by the device under test is analyzed and perceived. It is described that an evaluation is performed.
Japanese Patent Laid-Open No. 2002-77070 JP-A-11-225121 JP 08-335905 A JP-T-08-501910

  In the monitoring function incorporated in the communication system, there is a problem that it cannot be detected, such as a voice conversation or silence. In addition, an alarm issued from the monitoring function incorporated in the communication system indicates a failure of each device constituting the communication system, and may not match the actual problem encountered by the user. There is a problem that it cannot be said that it is a detection of a defect experienced by.

  In particular, in a service realized by cooperation of a plurality of devices, it may be difficult to specify the influence of the device failure on the service. When a user notices a problem, the complaint sent to the call center, etc. is ambiguous in information such as the occurrence location, occurrence time, occurrence phenomenon, etc., so it is difficult to identify the suspicious location from these complaints. However, there was a problem that it took time and manpower.

  Moreover, even if the user notices a problem, it is not always a claim, and therefore it may not even be recognized that a problem has occurred. In general, it is said that "if there is one claim, there are 24 other customers who have problems."

  Confirmation of human voice listening requires repeated tests for a long time, which is a physical and mental burden on the operator. Furthermore, when performing a test over a wide range, there is a problem that the cost such as labor cost becomes enormous.

  The present invention has been made in view of the above points, and is capable of detecting a failure experienced by a user and accurately and quickly identifying a suspected portion of the failure, and the failure detection device and manager device thereof. And it aims at providing a center apparatus.

The present invention is a failure detection system for detecting a failure of a communication system having a hierarchical structure,
It is installed corresponding to each of a plurality of lowest level devices constituting the communication system, and transmits and receives a test signal by transmitting from the outgoing test terminal to the lowest level device, and from the corresponding lowest level device, the wearing test terminal A failure detection device that receives and receives a test signal and performs a connection test;
A manager device that analyzes a suspected location where a failure has occurred by receiving a test result from the failure detection device,
By having the center device that is notified of the analysis result from the manager device and displays the analysis result, a defect experienced by the user can be detected, and the suspected part of the failure can be identified accurately and quickly.

Further, the present invention is a failure detection apparatus for a failure detection system for detecting a failure of a communication system having a hierarchical structure,
A test terminal for calling to the lowest device of the communication system;
A wearing test terminal that receives an incoming call from the lowest device of the communication system;
A test signal generating means for generating a test signal and supplying the test signal to one of the test terminal for wearing and the wearing test terminal for transmission;
A determination means for determining a test signal received from the other terminal among the test terminal for wearing and the wearing test terminal;
Having an inter-device communication terminal for communicating with the manager device of the failure detection system;
The failure detection system can be realized by notifying the manager device of the determination result at the inter-device communication terminal.

Further, the present invention is a failure detection system manager device for detecting a failure of a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with a failure detection device of the failure detection system or another manager device or a center device;
Analyzing means for analyzing a suspected location where a failure has occurred from the determination result received from the failure detection device at the inter-device communication terminal,
The failure detection system can be realized by notifying the other manager device or the center device of the analysis result at the inter-device communication terminal.

Further, the present invention is a center device of a failure detection system that performs failure detection of a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with the manager device of the failure detection system;
A failure detection system can be realized by having display means for displaying the analysis result received from the manager device at the inter-device communication terminal.

In the failure detection system,
The test signal may be an audio signal.

  ADVANTAGE OF THE INVENTION According to this invention, the malfunction which a user experiences can be detected, and the suspicious location of a failure can be specified correctly and rapidly.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Configuration of communication system>
FIG. 1 shows a configuration diagram of an embodiment of a communication system having a hierarchical structure to which the present invention is applied. In the figure, the lowest-order devices d-1 to d-9 are MSs (wireless base stations) in the PDC system and IMT-2000, and the user terminal 10 is wirelessly connected. The intermediate devices m-1 to m-3 are V-MSCs in the PDC system and MSCs in the IMT-2000, and are connected to the lowest device d-1 to d-9 and the highest device u-1. The highest-level device u-1 is a G-MSC in the PDC system and a GMSC in IMT-2000.

<Configuration of communication system>
FIG. 2 shows a block diagram of one embodiment of a failure detection system. In the figure, failure detection devices D-1 to D-9 are installed corresponding to the lowest devices d-1 to d-9 of the hierarchical communication system, and all failure detection devices D-1 to D-9 are installed. Synchronized with -9, for example, a voice call origination / reception test and a voice continuity test are performed. The failure detection devices D-1 to D-9 that have detected the failure notify the upper manager devices M-1 to M-3 of the type and occurrence time of the failure.

  The manager devices M-1 to M-3, U-1 are installed corresponding to the intermediate devices m-1 to m-3 and the uppermost device u-1 of the communication system, and the failure detection devices D-1 to D- 9 receives a failure occurrence notification from 9, analyzes the suspected location, and notifies the center device S-1 of the analysis result.

  The center device S-1 is installed corresponding to the uppermost device u-1 of the communication system, receives the analysis result of the suspected place from the manager devices M-1 to M-3, U-1, and gives the system administrator indicate.

  The failure detection devices D-1 to D-9 are installed in the wireless areas of the lowest devices d-1 to d-9 of the communication system in FIG. The manager devices M-1 to M-3 are installed corresponding to the intermediate devices m-1 to m-3 of the communication system in FIG. 1, respectively, but do not necessarily correspond to the intermediate devices m-1 to m-3. There is also a mounting form in which the manager devices M1 to M-3 are co-located with any of the failure detection devices D-1 to D-9. Moreover, although the manager apparatus U-1 is installed corresponding to the highest-order apparatus u-1, it does not necessarily need to be installed corresponding to the highest-order apparatus u-1, and the manager apparatus U-1 is the manager apparatus. There is also a mounting form in which any one of M1 to M-3 or the failure detection devices D-1 to D-9 coexists.

<Configuration of failure detection device>
FIG. 3 shows a block diagram of an embodiment of the failure detection device, and FIG. 4 shows an external perspective view of the embodiment of the failure detection device.

  The failure detection device is provided outside the device 31, the device configuration storage unit 32, the scenario storage unit 33, the scenario control unit 34, the test control unit 35, the transmission control unit 36, and the case 31. The test terminals 37 and 38 for use and wear and the terminal 39 for inter-device communication are included.

  The device configuration storage unit 32 stores device configuration information of the failure detection system, that is, information such as telephone numbers of D-1 to D-9, M-1 to M-3, and U-1. The scenario storage unit 33 stores information necessary for the failure detection apparatus to perform the test, such as the test start time, the information on the mobile device used, the telephone number, and the operation sequence for failure detection.

  The scenario control unit 34 instructs the test control unit 35 to perform a voice test according to the contents of the scenario, and analyzes the test result returned from the test control unit 35 to verify the presence or absence of a defect. If there is a problem, the contents are compiled into an “unconfirmed suspicion report” and the transmission control unit 36 is instructed to transmit to the upper manager device.

  Upon receiving an instruction from the scenario control unit 34, the test control unit 35 performs, for example, voice incoming / outgoing calls and voice communication using the test terminals 37 and 38 connected to the failure detection apparatus, and the result is sent to the scenario control unit 34. Return to.

  The transmission control unit 36 transmits an “unconfirmed suspicion report” to the upper manager device using the inter-device communication terminal 39. The test terminal 37 is a mobile phone used on the voice test transmission side. The test terminal 38 is a mobile phone used on the receiving side of the voice test. The inter-device communication terminal 39 is a mobile phone used for communication between the failure detection device and the manager device.

  FIG. 5 shows a block diagram of an embodiment of the test control unit 35 of the failure detection apparatus. In the figure, a transmission test control unit 41 controls the entire voice transmission test. The incoming test control unit 42 controls the entire voice incoming test. The transmission terminal control unit 43 controls the test terminal 37. The incoming terminal control unit 44 controls the test terminal 38.

  The voice generation unit 45 generates a voice signal under the control of the incoming call test control unit 42 or the transmission terminal control unit 43 and sends it to the earphone microphone terminals 37 a and 38 a of the test terminals 37 and 38 through the voice switch 46. The voice determination unit 47 uses a voice signal condition previously input from the transmission test control unit 41 or the incoming test control unit 42, and receives a voice signal received from the earphone microphone terminals 37a and 38a of the test terminals 37 and 38 through the voice switch 46. And the determination result is notified to the incoming call test control unit 42 or the transmission terminal control unit 43.

  The switch control unit 48 controls switching of the voice switch 46 under the control of the incoming call test control unit 42 or the transmission terminal control unit 43. The voice switch 46 is connected to the earphone microphone terminal of the test terminals 37 and 38, and switches between line input and line output.

  The test control unit 35 here is a function for detecting a problem of voice communication of a voice call. However, by replacing the test control unit 35 with one corresponding to another call type or service, packet communication data, mail, It is possible to detect various call types such as data communication and service failures.

<Operation of failure detection device>
(1) The scenario control unit 34 transmits “test start” to the test control unit 35 according to the scenario.

  (2) The test control unit 35 performs a voice test using the test terminal 37 and the test terminal 38 in accordance with “start test”, and returns a “test result” to the scenario control unit 34.

  (3) The scenario control unit 34 scrutinizes the content of the “test result” and, if a defect is detected, creates an “unconfirmed suspicion report” and instructs the transmission control unit 36 to transmit it.

  (4) The transmission control unit 36 controls communication between devices according to the device configuration stored in the device configuration storage unit 32 with respect to the manager devices M-1 to M-3 positioned above the own failure detection device. The terminal 39 is used to transmit “unconfirmed suspicion report”.

<Configuration of manager device>
FIG. 6 shows a block diagram of an embodiment of a manager device. In the figure, the manager device includes a device configuration storage unit 51, a reception control unit 52, a suspected place analysis unit 53, a transmission control unit 54, and an inter-device communication provided outside the housing. The terminal 55 is configured.

  The device configuration storage unit 51 stores device configuration information of the failure detection system, that is, information such as telephone numbers of D-1 to D-9, M-1 to M-3, and U-1. The reception control unit 52 receives the “unconfirmed suspicion report” received by the inter-device communication terminal 55 and supplies it to the suspicious part analysis unit 53.

  The suspicious part analysis unit 53 analyzes the “unconfirmed suspicion report” supplied from the reception control unit 52 and narrows down the suspected devices. As a result of narrowing down, if the suspected part can be identified, the transmission control unit 54 is instructed to transmit the “definite suspected report” to the center device S-1, and if the suspected part cannot be identified, the higher-level manager device The transmission control 54 is instructed to transmit the “unconfirmed suspicion report” to U-1.

  Using the inter-device communication terminal 55, the transmission control unit 54 transmits “unconfirmed suspicion report” to the upper manager apparatus U-1 and “confirmed suspicion report” to the center apparatus. The inter-device communication terminal 55 is a mobile phone used for communication between the manager device and the manager device or between the manager device and the center device.

<Operation of manager device>
(1) The reception control unit 52 receives the “unconfirmed suspicion report” from the inter-device communication terminal 55 and notifies the suspicious point analysis unit 53 of the “unconfirmed suspicion report”.

  (2) The suspicious part analysis unit 53 analyzes the “unconfirmed suspicion report” received from the lower level failure detection device or the lower level manager device. If the suspicious part cannot be specified for transmission to S-1, a transmission request is sent to the transmission control unit 54 in order to transmit "unconfirmed suspicion report" to the upper manager apparatus U-1.

  (3) The transmission control unit 54 performs inter-device communication with respect to the manager device U-1 or the center device S-1 positioned above the own manager device in accordance with the device configuration stored in the device configuration storage unit 51. An “indeterminate / confirmed suspicion report” is transmitted using the control terminal 55.

<Configuration of center device>
FIG. 7 shows a block diagram of an embodiment of the center device. In the figure, the center device includes a reception control unit 61 provided in the housing, a screen display unit 62, and an inter-device communication terminal 63 provided outside the housing. The reception control unit 61 receives the “definite suspect report” from the inter-device communication terminal 63 and supplies it to the screen display unit 62. The screen display unit 62 displays the content of the received “final suspicion report” on the screen. The inter-device communication terminal 63 is a mobile phone used for communication between the manager device and the center device.

<Operation of center device>
(1) The reception control unit receives “definite suspect report” from the inter-device communication terminal 63 and notifies the screen display unit 62 of it.

  (2) The screen display unit 62 displays the received “definite suspicion report” on the screen.

<Sound test sequence>
FIG. 8 shows a voice test sequence performed by the failure detection apparatus. FIG. 9 shows a sequence when detecting an uplink voice communication abnormality, and FIG. 10 shows a sequence when detecting a downlink voice communication abnormality. In the figure, the numbers in parentheses correspond to the numbers of sentences.

  (1) The scenario control unit 34 transmits “test start” to the outgoing test control unit 41 and the incoming test control unit 42 of the test control unit 35 according to the scenario stored in the scenario storage unit 33. “Test start” is assigned with the test terminal to be used, the other party's telephone number, voice generation / determination timing and time, and disconnection timing. The timing and time of voice generation / determination are necessary so that uplink voice communication and downlink voice communication are performed in synchronization between the two test terminals 37 and 38.

  (2) The transmission test control unit 41 transmits a “transmission instruction” to the transmission terminal control unit 43 in accordance with the “test instruction”. The “calling instruction” is given the telephone number of the calling party.

  (3) The incoming test control unit 42 transmits an “incoming standby instruction” to the incoming terminal control unit 44 in accordance with the “test instruction”. The other party's telephone number is assigned to the “incoming call waiting instruction”.

  (4) In accordance with the “calling instruction”, the calling terminal control unit 43 goes off hook to the test terminal 37 and dials the other party's telephone number. When the transmission is completed, “connection complete” is returned to the transmission test control unit 41.

  (5) When receiving the “incoming standby instruction”, the incoming terminal control unit 44 waits for an incoming call from the test terminal 38. If there is an incoming call from the other party indicated by the other party telephone number, the test terminal 38 is off-hooked and “incoming notification” is returned to the incoming test control unit 42.

  (6) The transmission test control unit 41 instructs the voice generation unit 45 to “start generation” at the timing specified as the voice generation timing. “Generation start” is given time for generating sound.

  (7) The incoming call test control unit 44 instructs the voice determination unit 47 to start “determination” at the timing specified as the voice determination timing. The “determination start” is given a time for determining the voice.

  (8) Upon receiving “generation start”, the voice generation unit 45 generates and transmits a voice signal. The sound generation is continuously performed for the time specified by the sound generation time.

  (9) When receiving the “determination start”, the voice determination unit 47 waits for voice input. When valid voice input is detected within the voice judgment time, it is judged that the uplink voice communication is OK. If no valid voice input is detected within the voice judgment time, it is judged that the voice communication is NG.

  Here, when the test terminal 37 of the failure detection device D-1 transmits to the test terminal 38 of the failure detection device D-1, the sound transmitted from the test terminal 37 is arranged by the failure detection device D-1. Is received by the lowest-order device d-1 in the wireless area and transmitted to the lowest-order device d-1 via the higher-order intermediate device m-1, and the failure detection device D- Is received by one test terminal 38.

  Further, when the test terminal 37 of the failure detection device D-1 transmits to the test terminal 38 of the failure detection device D-5, the failure detection device D-1 is arranged in the sound transmitted from the test terminal 37. Received by the lowest device d-1 in the wireless area and transmitted to the lowest device d-5 via the upper intermediate device m-1, the highest device u-1, and the intermediate device m-2. Received from the lowest level device d-5 by the test terminal 38 of the failure detection device D-1.

  (10) The switch control unit 48 switches the voice switch 46.

  (11) The incoming call test control unit 42 instructs the voice generation unit 45 to “start generation” at the timing specified as the voice generation timing. “Generation start” is given time for generating sound.

  (12) The transmission test control unit 41 instructs the voice determination unit 47 to start “determination” at the timing specified as the voice determination timing. The “determination start” is given a time for determining the voice.

  (13) When receiving the “generation start”, the sound generation unit 45 generates and transmits a sound signal. The sound generation is continuously performed for the time specified by the sound generation time.

  (14) Upon receiving “determination start”, the voice determination unit 47 waits for input of voice. When valid voice input is detected within the voice judgment time, it is judged that the downlink voice communication is OK. If a valid voice input cannot be detected within the voice judgment time, it is judged as downlink voice communication NG.

  (15) The transmission test control unit 41 transmits a “disconnection instruction” to the transmission terminal control unit 43 at the timing specified as the disconnection timing.

  (16) The transmission terminal control unit 43 on-hooks the test terminal 37 in accordance with the “disconnection instruction”, disconnects the call, and returns a “disconnection notification” to the transmission test control unit 41.

  (17) The receiving terminal control unit 44 waits for disconnection from the test terminal (wearing). If there is a disconnection, a “disconnection notification” is returned to the incoming call test control unit 42.

  (18) Upon receiving “disconnection notification”, the transmission test control unit 42 transmits “test result” to which the content of the result is added to the scenario control unit 34.

  (19) When receiving the “disconnection notification”, the incoming test control unit 42 transmits the “test result” to which the content of the result is added to the scenario control unit 34.

<Operation of the entire failure detection system when the lowest device is suspected>
FIG. 11 is an operation explanatory diagram of the entire failure detection system when the lowest device of the communication system is determined to be suspect. In the figure, the numbers in parentheses correspond to the numbers of the sentences, the dashed arrows indicate unconfirmed suspicions, and the solid arrows indicate final suspicions.

  (1) Each failure detection device D-1 to D-9 starts a voice test at the test start time defined in the scenario.

  (2) When an uplink voice communication abnormality (or a downlink voice communication abnormality) is detected from the test result of only the failure detection device D-5, the failure detection device D-5 “not yet” “Confirmed suspicion report” is created and transmitted to the manager apparatus M-2. The other failure detection devices do nothing because no abnormality is detected.

  (3) The manager device M-2 receives the “unconfirmed suspicion” only from the failure detection devices D-4 to D-6, and the other failure detection devices. Since nothing is received, it is determined that the suspected place is the lowest-order device d-5 corresponding to the failure detection device D-5, a “definite suspect report” regarding the lowest-order device d-5 is created, and the center device S -1.

  (4) The center device S-1 displays the suspicion of the lowest device d-5.

<Operation of the entire failure detection system when the intermediate device is suspected>
FIG. 12 is an operation explanatory diagram of the entire failure detection system when it is determined that the intermediate device of the communication system is suspected. In the figure, the numbers in parentheses correspond to the numbers of the sentences, the dashed arrows indicate unconfirmed suspicions, and the solid arrows indicate final suspicions.

  (1) Each failure detection device D-1 to D-9 starts a voice test when the test start time defined in the scenario is reached.

  (2) When an uplink voice communication abnormality (or a downlink voice communication abnormality) is detected from the test results of the failure detection devices D-4 to D-6, the failure detection devices D-4 to D-6 respectively correspond to the lowest An “unconfirmed suspicion report” relating to the devices d-4 to d-6 is created and transmitted to the manager device M-2.

  (3) Since the manager device M-2 has received “unconfirmed suspicion” from all of the subordinate failure detection devices D-4 to D-6, the suspected location is assigned to the failure detection devices D-3 to D-5. It is rare that a failure occurs at the corresponding lowest level device d-4 to d-6 at the same time, and it is determined that the suspected place is the intermediate device m-2 that bundles them together. "Suspicious report" is created and transmitted to the upper manager apparatus U-1.

  (4) The manager device U-1 receives “unconfirmed suspicion” only from the manager device M-2 among the subordinate manager devices M-1 to M-3, and receives nothing from the other manager devices. Therefore, it is determined that the suspected place is the intermediate device m-2 corresponding to the manager device M-2, and a “definite suspect report” regarding the intermediate device m-2 is created and transmitted to the center device S-1.

  (5) The center device S-1 displays the suspicion of the intermediate device m-2.

<Operation of the entire failure detection system when the top-level device is suspected>
FIG. 13 is a diagram illustrating the operation of the entire failure detection system when the highest-level device of the communication system is determined to be suspect. In the figure, the numbers in parentheses correspond to the numbers of the sentences, the dashed arrows indicate unconfirmed suspicions, and the solid arrows indicate final suspicions.

  (1) Each failure detection device D-1 to D-9 starts a voice test when the test start time defined in the scenario is reached.

  (2) When an uplink speech communication abnormality (or downlink speech communication abnormality) is detected from the test results of the failure detection devices D-1 to D-9, the failure detection devices D-1 to D-9 respectively “Unconfirmed suspicion declarations” relating to the lower devices d-1 to d-9 are created and transmitted to the respective upper manager devices M-1 to M-3.

  (3) Since the manager devices M-1 to M-3 have received “unconfirmed suspicions” from all of their subordinate failure detection devices, the suspected locations are intermediate devices m-1 to m-3 that bundle them together. It is determined that there is an “unconfirmed suspicion report” for each of the intermediate devices m-1 to m-3, and is transmitted to the upper manager device U-1.

  (4) Since the manager device U-1 has received “unconfirmed suspects” from all of the subordinate manager devices M-1 to M-3, the suspected place is the highest-level device u corresponding to the manager device U-1. -1 is determined, a “definite suspicion report” regarding the highest-level device u-1 is created and transmitted to the center device S-1.

  (5) The center device S-1 displays the suspicion of the highest-level device u-1.

  As described above, in the present embodiment, by performing a test using the terminals 37 and 38 actually used by the user, it is possible to detect a one-way speech and silent failure that could not be detected in the past. Since it is possible to detect a problem actually experienced by the user, it is possible to detect a problem of a service realized by the cooperation of a plurality of devices from the viewpoint of a phenomenon.

  In addition, since it is possible to reliably collect defects that have conventionally relied on uncertain claims from users, it is possible to more reliably and accurately grasp the occurrence phenomenon, the occurrence time, and the occurrence location of defects. Further, the manager device analyzes the failure status detected by the failure detection device, so that it is possible to identify the suspected location of the failure accurately and quickly, and to grasp the range in which the service cannot be provided in real time. It is possible to speed up fault isolation and save labor.

The voice generation unit 45 corresponds to the test signal generation unit described in the claims, the voice determination unit 47 corresponds to the determination unit, the suspected place analysis unit 53 corresponds to the analysis unit, and the screen display unit 62 serves as the display unit. The voice switch 46 corresponds to the switch means.
(Appendix 1)
A fault detection system for detecting faults in a communication system having a hierarchical structure,
It is installed corresponding to each of a plurality of lowest level devices constituting the communication system, and transmits and receives a test signal by transmitting from the outgoing test terminal to the lowest level device, and from the corresponding lowest level device, the wearing test terminal A failure detection device that receives and receives a test signal and performs a connection test;
A manager device that analyzes a suspected location where a failure has occurred by receiving a test result from the failure detection device,
A failure detection system comprising: a center device that receives an analysis result from the manager device and displays the analysis result.
(Appendix 2)
A failure detection device for a failure detection system for detecting a failure in a communication system having a hierarchical structure,
A test terminal for calling to the lowest device of the communication system;
A wearing test terminal that receives an incoming call from the lowest device of the communication system;
A test signal generating means for generating a test signal and supplying the test signal to one of the test terminal for wearing and the wearing test terminal for transmission;
A determination means for determining a test signal received from the other terminal among the test terminal for wearing and the wearing test terminal;
Having an inter-device communication terminal for communicating with the manager device of the failure detection system;
A failure detection apparatus that notifies the manager apparatus of a determination result at the inter-apparatus communication terminal.
(Appendix 3)
A fault detection system manager device for detecting faults in a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with a failure detection device of the failure detection system or another manager device or a center device;
Analyzing means for analyzing a suspected location where a failure has occurred from the determination result received from the failure detection device at the inter-device communication terminal,
The manager device, wherein the inter-device communication terminal notifies an analysis result to the other manager device or the center device.
(Appendix 4)
A failure detection system center device for detecting a failure in a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with the manager device of the failure detection system;
A manager device comprising display means for displaying an analysis result received from the manager device at the inter-device communication terminal.
(Appendix 5)
In the failure detection system according to appendix 1,
The failure detection system, wherein the test signal is an audio signal.
(Appendix 6)
In the failure detection apparatus according to appendix 2,
The failure detection apparatus, wherein the test signal generation means generates an audio signal as a test signal.
(Appendix 7)
In the failure detection apparatus according to appendix 2 or 6,
Switch means for switching between the test terminal for wearing and the wearing test terminal, supplying the test signal generated by the test signal generating means to one of the terminals, and supplying the test signal received by the other terminal to the determining means A failure detection apparatus comprising:

1 is a configuration diagram of an embodiment of a communication system having a hierarchical structure to which the present invention is applied. It is a block diagram of one Embodiment of a failure detection system. It is a block diagram of one embodiment of a failure detection device. It is an external appearance perspective view of one Embodiment of a failure detection apparatus. It is a block diagram of one Embodiment of the test control part of a failure detection apparatus. It is a block diagram of one Embodiment of a manager apparatus. It is a block diagram of one embodiment of a center device. It is the sequence of the audio | voice test which a failure detection apparatus implements. It is a sequence when detecting an uplink voice communication abnormality. It is a sequence when detecting a downlink voice communication abnormality. It is operation | movement explanatory drawing of the whole failure detection system in case the lowest-order apparatus of a communication system is determined to be suspicious. It is operation | movement explanatory drawing of the whole failure detection system when it determines with the intermediate | middle apparatus of a communication system being suspicious. It is operation | movement explanatory drawing of the whole failure detection system in case the uppermost apparatus of a communication system is determined to be suspicious.

Explanation of symbols

d-1 to d-9 Lowest device m-1 to m-3 Intermediate device u-1 Top device D-1 to D-9 Failure detection device M-1 to M-3, U-1 Manager device S- DESCRIPTION OF SYMBOLS 1 Center apparatus 31 Case 32 Apparatus structure storage part 33 Scenario storage part 34 Scenario control part 35 Test control part 36 Transmission control part 37,38 Test terminal 39,55,63 Inter-apparatus communication terminal 41 Transmission test control part 42 Incoming test Control unit 43 Originating terminal control unit 44 Incoming terminal control unit 45 Voice generation unit 46 Voice switch 47 Voice determination unit 48 Switch control unit 51 Device configuration storage unit 52 Reception control unit 53 Suspicious part analysis unit 54 Transmission control unit 61 Reception control unit 62 Screen display

Claims (5)

A fault detection system for detecting faults in a communication system having a hierarchical structure,
It is installed corresponding to each of a plurality of lowest level devices constituting the communication system, and transmits and receives a test signal from a calling test terminal to a corresponding lowest level device, and the corresponding lowest level device wears a test terminal. A failure detection device that receives and receives a test signal and performs a connection test;
A manager device that analyzes a suspected location where a failure has occurred by receiving a test result from the failure detection device,
A failure detection system comprising: a center device that receives an analysis result from the manager device and displays the analysis result. A failure detection device for a failure detection system for detecting a failure in a communication system having a hierarchical structure,
A test terminal for calling to the lowest device of the communication system;
A wearing test terminal that receives an incoming call from the lowest device of the communication system;
A test signal generating means for generating a test signal and supplying the test signal to one of the test terminal for wearing and the wearing test terminal for transmission;
A determination means for determining a test signal received from the other terminal among the test terminal for wearing and the wearing test terminal;
Having an inter-device communication terminal for communicating with the manager device of the failure detection system;
A failure detection apparatus that notifies the manager apparatus of a determination result at the inter-apparatus communication terminal. A fault detection system manager device for detecting faults in a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with a failure detection device of the failure detection system or another manager device or a center device;
Analyzing means for analyzing a suspected location where a failure has occurred from the determination result received from the failure detection device at the inter-device communication terminal,
The manager device, wherein the inter-device communication terminal notifies an analysis result to the other manager device or the center device. A failure detection system center device for detecting a failure in a communication system having a hierarchical structure,
An inter-device communication terminal that communicates with the manager device of the failure detection system;
A center device comprising display means for displaying an analysis result received from the manager device at the inter-device communication terminal. The failure detection system according to claim 1,
The failure detection system, wherein the test signal is an audio signal.

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