JPH08293949A - G3 protocol measuring instrument - Google Patents

Abstract

PURPOSE: To accurately analyze a communication protocol in a short time even by a person, who has no techniqual knowledge, by comparing measured communication protocol data with a previously stored specified value and displaying the analyzed result. CONSTITUTION: An operation processing part 14 for monitoring in a control part 1 compares the transmitted communication protocol data with the previously stored specified value, analyzes whether the measured communication protocol is adequate or not for each item and displays the analyzed result. Besides, an operation processing part 15 for simulation in the control part 1 converts the measured communication protocol data to simulation data, sends the data to a communication control part 5 for simulator or a recording medium and enables the reproduction of the measured communication protocol. Then, the communication control part 5 for simulator reproduces the conditions of communication trouble by executing the communication protocol equal with facsimile equipment 8 under communicating corresponding to the simulation data from the operation processing part 15 for simulation, so that the cause of communication trouble can be cleared.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a G3 protocol measuring device for measuring a communication protocol of a G3 facsimile machine to judge whether it is appropriate or not. It is about the facilitation of.

[0002]

2. Description of the Related Art ITU Recommendation T. A G3 protocol measuring device is used to determine the suitability of a communication protocol of a facsimile device conforming to No. 30 or a facsimile device conforming to FTZ18TR53 or a communication protocol independently performed by the manufacturer of the facsimile device. ing. The conventional G3 protocol measuring device has a monitor function capable of measuring the communication protocol of the facsimile device, detects the communication protocol during transmission / reception by the facsimile device, and displays the result on a screen or recording paper. An analyst analyzes the result of this monitoring to determine the suitability of the communication protocol.

[0003]

However, the monitored communication protocol data is ITU Recommendation T.264. No. 30 standard value, FTZ18TR53 standard value, ITU Recommendation T. 30 and FTZ18TR5
It is not easy to analyze whether or not it conforms to the standard value defined for each manufacturer of each facsimile machine in accordance with No. 3, and requires specialized knowledge and a considerably long time for analysis. And Further, since the analysis of the communication protocol is not easy, the analysis result may cause variation or omission of analysis for each analyst, which may be one of the causes of communication failure.

Further, since it is not possible to easily reconfirm the analyzed result and reproduce the monitored result in order to take measures against the cause of the communication failure, it is necessary to investigate the cause when the communication failure occurs. It was difficult to take quick measures.

Further, a communication recorded on an external recording device such as a micro disk (MD) or a digital audio / video pre-coder (DAT) and modulated by a device other than the modem built in the G3 protocol measuring device. The suitability of the communication protocol could not be determined using the data.

The present invention has been made in order to improve such disadvantages, and it automatically analyzes the measured communication protocol to obtain the ITU recommendation T.264. 30 and FTZ18TR53 standard values and manufacturers of each facsimile machine.
An error is displayed for each item that differs from the standard value specified for each item to clarify the suitability of the communication protocol, and the measurement results and communication data modulated by other than the built-in modem can be easily reproduced. Then, it is an object of the present invention to obtain a G3 protocol measuring device capable of clarifying its suitability.

[0007]

A G3 protocol measuring apparatus according to the present invention comprises a monitor communication control section, a control section, a simulator communication control section, and a recording apparatus connecting section, and a monitor communication control section. ITU Recommendation T.M. A communication protocol of a facsimile device compliant with 30 is detected, and the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device reading processing unit, and the monitor arithmetic processing unit is for monitoring. The communication protocol data detected by the communication control unit and the ITU Recommendation T. The standard value defined in No. 30 is compared, an error message is output when the comparison result is different, and the simulation arithmetic processing section detects the communication protocol of the facsimile machine detected by the monitor communication control section. The data is converted into simulation data and sent to the simulator communication control unit, and the recording device read processing unit simulates the communication protocol data recorded in the recording device connected to the recording device connection unit. -When a command to execute a simulation is issued, a specified signal is read from the recording device and sent to the communication control section for simulator, and the communication control section for simulator is simulated from the arithmetic processing section for simulation. When the data is sent, the
The communication protocol data stored in the recording device is simulated by executing the communication protocol equivalent to that of the facsimile device which has been communicating by establishing a line with the communication data.
When the command execution is instructed, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connecting section manages the connection with the external recording device.

A G3 protocol measuring device according to a second aspect of the present invention comprises a monitor communication control unit, a control unit, a simulator communication control unit and a recording device connection unit, and the monitor communication control unit is ITU Recommendation T. ． In conformity with No. 30, the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device reading processing unit by detecting the communication protocol which the manufacturer of each facsimile machine independently performs. However, the monitor arithmetic processing unit compares the communication protocol data detected by the monitor communication control unit with the standard value stored in advance for each facsimile machine maker, and the result of comparison is compared. An error message is output at a different time, and the simulation arithmetic processing unit converts the communication protocol data of the facsimile machine detected by the monitor communication control unit into simulation data, and then uses it for the simulator. It is sent to the communication control unit, and the recording device read processing unit is instructed to execute the simulation of the communication protocol data recorded in the recording device connected to the recording device connection unit. , The specified signal is read from the recording device and sent to the simulator communication control unit, and the simulator communication control unit sends the simulation data from the simulation arithmetic processing unit, The sent simulation data was used to establish a line, execute a communication protocol equivalent to that of the facsimile machine that was performing communication, and instructed the simulation execution of the communication protocol data recorded in the recording device. At this time, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connection unit manages the connection with an external recording device.

A G3 protocol measuring device according to a third aspect of the present invention includes a monitor communication control unit, a control unit, a simulator communication control unit and a recording device connection unit, and the monitor communication control unit conforms to FTZ18TR53. The communication protocol of the facsimile device being operated, the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device reading processing unit, and the monitor arithmetic processing unit is a monitor communication control unit. The communication protocol data detected in step 3 is compared with the standard value stored in advance in the FTZ18TR53, and when the comparison results are different, an error message is output and the simulation processing unit monitors. The communication protocol data of the facsimile machine detected by the communication control section is converted into simulation data and sent to the simulator communication control section. The recording device read processing unit reads out a specified signal from the recording device when the simulation execution of the communication protocol data recorded in the recording device connected to the recording device connection unit is instructed. -Simulation data sent to the communication control unit for simulator, and the communication control unit for simulator sends the simulation data sent when the simulation data is sent from the arithmetic processing unit for simulation.
The communication is sent when the communication protocol equivalent to that of the facsimile machine that was performing communication is executed by the computer and the simulation execution of the communication protocol data stored in the recording device is instructed. It is characterized in that the protocol data is sequentially sent to the line, and the recording device connection unit manages the connection with an external recording device.

A G3 protocol measuring device according to a fourth aspect of the present invention has a monitor communication control unit, a control unit, a simulator communication control unit and a recording device connection unit, and the monitor communication control unit conforms to FTZ18TR53. Then, the communication protocol which the manufacturer of each facsimile machine independently carries out is detected, and the control section has a monitor arithmetic processing section, a simulation arithmetic processing section and a recording apparatus reading processing section. The arithmetic processing unit compares the communication protocol data detected by the monitor communication control unit with the standard value stored in advance for each facsimile machine manufacturer, and when the comparison results are different, An error message is output, and the simulation arithmetic processing unit uses the simulation protocol data detected by the monitor communication control unit as the communication protocol data of the facsimile machine. Converted to simulator - sends to the communication control unit for data recording device read processing unit communication protocol de recorded in connected to the recording apparatus connecting part recording storage device -
When the simulation execution of the computer is instructed, the designated signal is read from the recording device and sent to the simulator communication control section, and the simulator communication control section
When the simulation data is sent from the calculation processing unit for application, the line is closed by the sent simulation data, and the communication protocol equivalent to that of the facsimile machine that was performing communication is executed, and the recording device. When the simulation execution of the communication protocol data recorded in the command is instructed, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connection unit manages the connection with the external recording device. It is characterized by doing.

[0011]

In the present invention, according to ITU Recommendation T. 30 and F
A communication protocol of a facsimile machine compliant with TZ18TR53 and ITU Recommendation T.264. 30 and FTZ18TR5
In conformity with No. 3, the communication protocol which the manufacturer of each facsimile machine independently performs is received by the monitor communication control unit, detected, and sent to the control unit. The monitor arithmetic processing unit of the control unit compares the transmitted communication protocol data with the standard value stored in advance, analyzes the propriety of the measured communication protocol for each item, and displays the analyzed result.

Further, the simulation arithmetic processing unit of the control unit converts the measured communication protocol data into simulation data and sends the simulation data to the simulation communication control unit or a recording medium for measurement. Enables protocol reproduction.

The simulator communication control unit is equivalent to a facsimile machine that communicates with the sent simulation data when the simulation data is sent from the simulation arithmetic processing unit. Execute the communication protocol to reproduce the situation of communication failure and clarify the cause of the communication failure.

Further, the storage device read processing unit of the control unit is
Micro disk (MD) and digital audio / video
When determining the suitability of the communication data recorded in an external recording device such as a precoder (DAT) and modulated by a device other than the modem of the monitor communication control unit, a specified signal is read from the external recording device. It is sent to the simulator communication control section. The simulator communication control unit sequentially sends the transmitted communication protocol data to the line to execute the simulation, and reproduces the communication protocol stored in the DAT or the like.

[0015]

1 is a block diagram showing a G3 protocol measuring device according to an embodiment of the present invention. As shown in the figure, the G3 protocol measuring device includes a control unit 1, a data storage memory 2 such as a floppy disk, a display unit 3, a monitor communication control unit (monitor CCU) 4, and a simulator communication control unit ( Simulator CCU) 5 and recorder connection 6
Have.

The control unit 1 is a CPU 11 that manages the entire apparatus.
And ROM 12, RAM 13, monitor arithmetic processing unit 1
4, simulation operation processing unit 15, functional information table
It has a cable storage unit 16, a protocol sequence table storage unit 17, a modem control table storage unit 18, and a recording device read processing unit 19. The function information table storage unit 16 stores ITU recommendation T.264. 30. Various functional information of communication protocol based on T.30 and ITU Recommendation T.30. In accordance with standard 30, various functional information of different non-standard procedure communication protocols set for each manufacturer of each facsimile machine is stored in advance, and IT is stored in the protocol sequence table storage unit 17.
U. Recommendation T. 30-compliant communication protocol sequence or non-standard procedure communication protocol sequence set for each manufacturer
The cans are stored. The modem control table storage unit 18 stores the function information of the digital handshaking command of the sending side (sending side or receiving side) that executes the simulation. The recording device read processing unit 19 drives and controls the recording device connection unit 6, and the
D) and digital audio / video pre-coder (DAT)
The communication data recorded in the external recording device 7 is controlled to be read.

The monitor communication control unit 4 has a network control unit 41, a modem 42, a digital handshaking command flag monitoring unit 43, and a total signal detection unit 44, and receives the communication protocol of the facsimile apparatus 8. To detect. The communication controller 5 for the simulator also includes a network controller 51, a modem 52,
Digital handshaking command flag monitor 5
3. It has a tonal signal detector 54, and executes a simulation by connecting a line with the exchange 9. The recording device connection unit 6 is a control interface unit (hereinafter referred to as a control I / F unit) 61 that manages the external recording device 7 such as DAT, and a communication interface that manages the connection with the external recording device 7. And a communication unit (hereinafter referred to as communication I / F unit) 62.

The operation of measuring the communication protocol of the facsimile apparatus by the G3 protocol measuring apparatus configured as described above will be described with reference to the flowchart of FIG.

First, the CPU 11 of the control unit 1 causes the communication control unit 4 for monitoring to exchange communication protocol data including image information data.
When the digital handshaking command NSF is received, it is confirmed by the low speed modem (300 bps) of the modem 3 (step S1). When the NSF is detected, the NSF facsimile information field (F
The maker code is detected by bits 17 to 28 of (IF) and set in the RAM 13 (step S2). And N
When the digital handshaking command NSS, which is a response signal to the SF, is detected (step S3), the facsimile information field of the NSS specified by the maker is set based on the set maker code. (F
The function information of (IF) is extracted from the function information table storage unit 16 (step S4). Thereafter, based on the extracted function information of each manufacturer, the unique communication protocol sequence defined by the manufacturer is extracted from the protocol sequence table storage unit 17 and the modem mode is controlled. Then, the communication protocol data is measured and stored in the RAM 13 (step S5).

In the communication protocol data being measured, next to the NSS, the digital handshaking command D
If there is no CS, the communication protocol data measurement is repeated again (steps S7 and S11). If DCS is next to NSS in the measured communication protocol data (step S7), the data set in RAM 13 is reset (steps S8 and S9), and ITU
Recommendation T. The function information table defined in 30 is extracted from the function information table storage unit 14 (step S
9). Based on the extracted function information table, the mode of the modem 42 of the monitor communication control unit 4 is switched,
The communication protocol data is measured and stored in the RAM 13 (step S11). Also, DIS is detected from the received communication protocol data without detecting NSF (step S
6) If DCS is subsequently detected (step S
7), ITU Recommendation T. The function information table defined by 30 is extracted, and the communication protocol data is extracted in the same manner as above.
Is measured (steps S8 to S11). The CPU 11 repeats the above processing, and when the measurement of the communication protocol data is completed (step S12), the measurement data stored in the RAM 13 is stored in the data storage memory 2 such as a floppy disk (step S13).

Next, the processing for determining the suitability of the communication protocol data measured as described above will be described with reference to the flowchart of FIG.

When the decision as to whether the communication protocol data is proper is made (step S21) and the facsimile machine to be determined is designated, the CPU 11 of the control unit 1 designates the designated data stored in the data storage memory 2. The communication protocol measurement data is extracted and stored in the RAM 13 (step S2).
2). When the monitor arithmetic processing unit 14 confirms the NSF from the communication protocol measurement data stored in the RAM 13 (step S22), the NSF facsimile information file is received.
17-28 bits of the field (FIF) to make a marker
Mode is detected and set (step S24). And NS
When NSS, which is a response signal to F, is detected (step S25), based on the detected maker code, that marker is detected.
Non-standard procedure communication defined by the car (unique communication)
The protocol sequence is extracted from the protocol sequence table storage unit 17 (step S26). The extracted non-standard procedure communication protocol sequence and the communication protocol measurement data are sequentially compared for each item (step S32). As a result of this comparison, if the measurement data of the communication protocol differs from the non-standard procedure communication protocol sequence defined by the manufacturer, an error message is generated and displayed in a different part. It is displayed on the section 3 (steps S33 and S34). As a result of comparison, if the measurement data of the communication protocol is the same as the non-standard procedure communication protocol sequence defined by the manufacturer, a normal message is generated and displayed on the display unit 3. (Steps S33, S35).

Further, the monitor arithmetic processing unit 14 is the RAM 1
When DCS is detected next to NSS from the communication protocol measurement data stored in step 3 (step S28), the set manufacturer code is reset and the ITU Recommendation T.264. 30
The protocol sequence defined by the control unit 1
From the protocol sequence table storage unit 17 (steps S29, S30, S31). This extracted ITU recommendation T.264. 30 is sequentially compared with the measurement data of the communication protocol for each item, and the measurement data of the communication protocol is determined by ITU Recommendation T.30. If it is different from the protocol sequence defined by 30, an error message is generated and displayed on the display unit 3 (steps S32, S33, S34). Also,
As a result of the comparison, the measurement data of the communication protocol is T. When it is the same as the protocol sequence defined by 30, a normal message is generated and displayed on the display unit 3 (steps S32, S33, S35).

If NSF is not detected from the communication protocol measurement data, DIS is detected (step S26), and then DCS is detected (step S28), the communication protocol measurement data and the ITU recommendation are issued in the same manner as above. T. The protocol sequences defined by 30 are compared to determine the suitability of the measured communication protocol data (steps S29 to S35).

Since the propriety of the communication protocol data thus measured is automatically judged and the presence or absence of an abnormality is displayed according to the protocol sequence, the propriety of the communication protocol can be confirmed easily and accurately. be able to.

Next, as a result of judging the suitability of the communication protocol data measured as described above, the situation of the communication failure is reproduced and confirmed, or the reason of the communication failure is confirmed and the countermeasure is taken. Facsimile device 6 that was communicating
The operation of the simulation processing when executing the communication program data equivalent to the above will be described with reference to the flowchart of FIG.

When the simulation process is started (step S41), the CPU 11 of the control unit 1 causes the data storage memory 2 to operate.
Extract the communication protocol measurement data stored in
It is stored in the AM 13 (step S42). When the simulation arithmetic processing unit 15 confirms the NSF from the communication protocol measurement data stored in the RAM 13 (step S43), the NSF facsimile information field (F
The maker code is detected by bits 17 to 28 of (IF) and set in the RAM 13 (step S44). When the NSS which is the response signal to the NSF is detected (step S45), the non-standard procedure communication (unique communication) protocol sequence defined by the manufacturer is determined based on the detected manufacturer code. Protocol sequence
It is extracted from the bull storage unit 17 (step S46). Next, based on the non-standard procedure communication protocol sequence defined by the manufacturer that extracted the digital handshaking command in the measurement data of the communication protocol, the command and the receiver of the sender are sequentially received. The command is separated (step S52). Then, the function information of the digital handshaking command of the sending side (sending side or receiving side) that executes the simulation is extracted, and the modem 52 of the communication control section 5 for the simulator is controlled from this function information. The modem control information for transmitting or receiving the high speed data is extracted and set in the modem control table storage unit 16 as simulation data (step S53). After separation of all digital handshaking commands of the measurement data of the communication protocol and extraction of the modem control information, the simulation is completed.
When the simulation data save is designated, the data communication control unit 5 stores the simulation data set in the modem control table storage unit 16.
The data is recorded in the data storage memory 2, and the data is transferred to the simulator communication control unit 5 (step S54,
S55). The communication control section 5 for the simulator executes the simulation by connecting the line based on the sequence of the sending side (sending side or receiving side) which executes the sent simulation (steps S56 and S57). . Then, the result of the executed simulation is measured by the monitor communication control unit 4, the monitor arithmetic processing unit 14 determines whether the communication protocol is appropriate, and the result is displayed on the display unit 3 according to the sequence.

Further, the arithmetic processing unit 15 for simulation.
Detects DCS next to NSS from the communication protocol measurement data stored in RAM 13 (step S4).
8), the setup data is reset and ITU Recommendation T. The protocol sequence defined by 30 is extracted from the protocol sequence table storage unit 17 (steps S49, S50). Next, the ITU Recommendation T.3 which extracts the digital handshaking command of the measurement data of the communication protocol. A command on the transmitting side and a command on the receiving side are sequentially separated based on the protocol sequence defined by 30 (step S52).
Then, the function information of the digital handshaking command of the sending side (sending side or receiving side) that executes the simulation is extracted, and the modem 52 of the communication control section 5 for the simulator is controlled from this function information. The modem control information for transmitting or receiving the high speed data is extracted and set in the modem control table storage section 18 as simulation data (step S53). After the separation of all digital handshaking commands of the communication protocol measurement data and the extraction of the modem control information are completed, the simulation arithmetic processing unit 15 operates in the same manner as described above. The simulation data set in the storage section 18 is recorded in the data storage memory 2 and is transferred to the simulator communication control section 5 to execute the simulation (step S54).
~ S57). Also, from the communication protocol measurement data, N
If DIS is detected without detecting SF (step S47), and then DCS is detected (step S48), ITU Recommendation T. The simulation data is extracted based on the protocol sequence defined by 30 to execute the simulation (step S49).
~ S57).

Since the communication program data measured in this way executes the communication protocol equivalent to that of each facsimile machine, the situation of the communication failure can be reproduced and confirmed, and the reason for the communication failure can be clarified. Measures can be taken reliably.

In the above-mentioned simulation processing, the case where the suitability of the measured communication protocol data is judged and the judgment result is immediately reproduced and confirmed is explained, but the communication protocol of a plurality of facsimile machines is measured. After determining its suitability, the simulation data that has been subjected to the simulation processing is stored in the data storage memory 2 such as a floppy disk, and a plurality of communication protocol data are collectively and continuously reproduced. However, it is also possible to execute the communication program data equivalent to that of each facsimile apparatus, confirm the reason for the communication failure, and take the countermeasure. The operation in this case will be described with reference to the flowchart of FIG.

When the continuous execution process of the simulation is instructed (step S61), the CPU 11 of the control unit 1 causes the simulation data for one communication from the data storage memory 2 in which the simulation data is recorded. -Extract data and R
It is stored in the AM 13 (step S62). When the simulation data for one communication is stored in the RAM 13, the CPU 11 transfers the simulation data to the communication control unit 5 for the simulator. The communication control unit 5 for simulator executes a simulation by concluding a line based on the transmitted communication simulation data (step S).
63, S64). The result of the executed simulation is measured by the monitor communication control unit 4, and the monitor arithmetic processing unit 14 determines the suitability of the communication protocol. The measurement result is recorded in the data storage memory 2 with the same name as the data name of the executed communication simulation data and the judgment result of the communication protocol (step S).
65). When the simulation for one communication is executed and the measurement result is recorded in the data storage memory 2 (step S66), the CPU 11 reads from the data storage memory 2 in which the simulation data is recorded. The simulation data for the next communication is extracted and stored in the RAM 13 (step S67), and the extracted communication simulation data is extracted.
Based on the data, the simulation is executed in the same manner as above (steps S68, S63 to S66). This process is
Automatically repeat for all the communication simulation data recorded in the data storage memory 2 to obtain the simulation result by all the communication simulation data.
When the data is recorded in the data storage memory 2, the process ends (step S68).

As described above, since all the simulation simulation data recorded in the data storage memory 2 is automatically executed and the result is recorded in the data storage memory 2, it is necessary to manually perform the simulation. The communication test can be carried out without requiring the communication, and the communication test can be carried out at midnight when there is no problem in normal communication. Further, since the communication simulation data recorded in the data storage memory 2 and the execution result of the simulation can be quickly confirmed, the time required for the analysis work can be greatly shortened and the communication failure can be prevented. The cause can be confirmed accurately, and the countermeasure can be promptly taken.

In the above-mentioned simulation processing, the case has been described in which the communication protocol data modulated by the modem 42 of the monitor communication control unit 4 is reproduced and its suitability is confirmed. De-
The simulation can also be performed using a computer. For example, micro disk (MD) and digital audio
A recording device such as a video tape recorder (DAT) can also record an image signal and the like. On the other hand, the communication data sent to the line when transmitting / receiving a facsimile is 300-340.
It is included in the audio band of 0 Hz. Therefore, by dealing with the method of recording the voice of the telephone, the communication data of the facsimile transmission / reception can be recorded in the MD or DAT. The communication data recorded on the recording device such as MD or DAT.
The operation of simulating the communication data and executing the communication protocol data equivalent to that of the facsimile machine which has been communicating will be described with reference to the flowchart of FIG.

Communication data recorded in MD, DAT, etc.
In the data, as shown in FIG. 7, an identifier ID or a program number is automatically recorded for each recorded signal. By designating this ID or program number, only the desired signal can be read and reproduced.

When a simulation execution of communication data recorded in, for example, the DAT 7 attached to the recording device connecting portion 6 is instructed, the CPU 11 of the control portion 11 first communicates with the control I / F portion 61. Drive the I / F unit 62, and
The AT 7 is connected to the control unit 1, the monitor communication control unit 4 and the simulator communication control unit 5 by low impedance via the communication I / F unit 62 (step S71). In this state, a signal sent from the operation unit of the G3 protocol measuring device itself or a system controller such as a personal computer is an ID or a program number such as ID = 1 and ID = 3 in FIG. When set (step S72), the CPU 11 operates the network control unit 51 of the simulator communication control unit 5 to access the exchange 9,
When the line is connected and the reception protocol data of the facsimile device 8 is received (steps S73, S74), the recording device read processing unit 19 is instructed to read the communication data recorded in the DAT 7, and at the same time. The monitor communication control section 4 is operated to measure communication simulation data. The recording device read processing unit 19 extracts the data of the signal to be transmitted according to the ID or program number set by the system controller or the like from the communication data recorded in the DAT 7 and stores it in the RAM 13 ( Step S75). When all the data corresponding to the set ID or program number is extracted and stored in the RAM 13 (step S76), the recording device reading processing unit 19 causes the RAM 13 to operate.
The data stored in (1) is sent to the network control unit 51 via the communication I / F unit 62 and sent to the transmission line (step S77). The result of the executed simulation is measured by the monitor communication control unit 4, the monitor arithmetic processing unit 14 determines whether the communication protocol is appropriate, and the result is displayed on the display unit 3. After sending all the set data (step S78),
When the line release command signal DCN is detected, the line is released and the simulation process ends (steps S86 and S8).
7).

When data of the received signal is transmitted to the line from the communication data recorded in DAT 7 (step S79), the signal to be transmitted is, for example, I in FIG.
If D = 0, ID = 2 and ID = 4 are set, the CPU 11
Operates the network control unit 51 of the simulator communication control unit 5, and when the linking signal is detected, the line is closed (steps S80 and S81). And the recording device reading processing unit 1
9 is instructed to read the communication data recorded in DAT 7, and the monitor communication control section 4 is operated to measure the communication simulation data. The recording device read processing unit 19 extracts the data of the signal to be transmitted according to the ID or the program number set by the system controller or the like from the communication data recorded in the DAT 7 and stores it in the RAM 13 ( Step S82). When all the data corresponding to the set ID or program number is extracted and stored in the RAM 13 (step S83), the recording device read processing unit 19 transfers the data stored in the RAM 13 to the communication I / F unit 62. The network control unit 51 is caused to send out to the sending line via (step S84). The result of the executed simulation is measured by the monitor communication control unit 4, the monitor arithmetic processing unit 14 determines whether the communication protocol is appropriate, and the result is displayed on the display unit 3. After transmitting all the set data (step S85), the line release command signal DC
When N is detected, the line is released and the simulation process ends (steps S86 and S87).

The above embodiment is based on the ITU Recommendation T. The reproduction process for determining the suitability of the communication protocol of the facsimile device conforming to No. 30 and clarifying the reason for the communication failure and taking the countermeasure against it has been explained.
The determination and reproduction of the suitability of the communication protocol of the facsimile apparatus conforming to 18TR53 can be performed in the same manner.

[0038]

As described above, the present invention provides the ITU.
Recommendation T. 30 and FTZ18TR53 compliant facsimile device communication protocol and ITU Recommendation T.30. In accordance with H.30 and FTZ18TR53, the communication protocol performed by the manufacturer of each facsimile machine is measured,
Since the measured communication protocol data is compared with the standard value stored in advance, the suitability of the measured communication protocol is analyzed for each item, and the analysis result is displayed.
The suitability of the communication protocol can be easily and accurately confirmed, and the analysis of the communication protocol can be accurately performed in a short time even by a person without specialized knowledge. Therefore, it is possible to prevent variations in analysis accuracy among analysts and occurrence of analysis omission, and stable analysis can be performed.

Further, by converting the measured communication protocol data into the communication simulation data and executing the measured communication protocol, it is possible to accurately reproduce the cause of the communication failure, and the communication failure occurs. It is possible to surely take countermeasures related to the factors and easily confirm the results of the countermeasures.

Further, communication data recorded on an external recording device such as a micro disk (MD) or a digital audio / video pre-coder (DAT) and modulated by a device other than the modem of the monitor communication control unit. When determining the suitability of the data, the data of the designated signal is read from the external recording device, sequentially transmitted from the communication control unit for the simulator to the line, and the simulation is executed to record the data on the DAT or the like. The communication protocol can be reproduced, and the communication data recorded in DAT or the like can be debugged and analyzed easily in a short time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing a communication protocol measurement process of the above embodiment.

FIG. 3 is a flowchart showing an automatic determination process of the communication protocol of the above embodiment.

FIG. 4 is a flowchart showing a simulation process of the above embodiment.

FIG. 5 is a flowchart showing a simulation continuous execution process of the above embodiment.

FIG. 6 is a flowchart showing a simulation process of communication data recorded in DAT.

FIG. 7 is an explanatory diagram showing communication data recorded in DAT.

[Explanation of symbols]

 1 Control Unit 2 Data Storage Memory 3 Display Unit 4 Monitor Communication Control Unit (Monitor CCU) 5 Simulator Communication Control Unit 6 Recording Device Connection Unit 8 Facsimile Device 11 CPU 13 RAM 14 Monitor Arithmetic Processing Unit 15 Simulation calculation processing unit 16 Function information table storage unit 17 Protocol sequence table storage unit 18 Modem control table storage unit 19 Recording device read processing unit

Claims (4)

[Claims] 1. A monitor communication control section, a control section, a simulator communication control section, and a recording device connection section, wherein the monitor communication control section is ITU Recommendation T.264. A communication protocol of a facsimile device compliant with 30 is detected, and the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device reading processing unit, and the monitoring arithmetic processing unit is for monitoring. The communication protocol data detected by the communication control unit and the ITU Recommendation T. The standard value defined in No. 30 is compared, an error message is output when the comparison result is different, and the simulation arithmetic processing section detects the communication protocol of the facsimile machine detected by the monitor communication control section. The data is converted into simulation data and sent to the simulator communication control unit, and the recording device read processing unit simulates the communication protocol data recorded in the recording device connected to the recording device connection unit. -When a command to execute a simulation is issued, a specified signal is read from the recording device and sent to the communication control section for simulator, and the communication control section for simulator is simulated by the arithmetic processing section for simulation. When the data is sent, the line is closed by the sent simulation data, and the communication protocol equivalent to that of the facsimile machine which has been communicating is executed. When the simulation execution of the communication protocol data stored in the recording device is instructed, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connecting section is connected to the external recording device. G3 protocol measuring device characterized by managing the G3 protocol. 2. A monitor communication control unit, a control unit, a simulator communication control unit, and a recording device connection unit, wherein the monitor communication control unit is ITU Recommendation T.264. In conformity with No. 30, the communication protocol which the manufacturer of each facsimile machine independently performs is detected, and the control section has a monitor arithmetic processing section, a simulation arithmetic processing section, and a recording device reading processing section. However, the monitor arithmetic processing unit and the communication protocol data detected by the monitor communication control unit and the pre-stored message of each facsimile machine are stored.
The standard value specified for each car is compared, and when the comparison result is different, an error message is output, and the simulation arithmetic processing unit detects the facsimile device detected by the monitor communication control unit. Simulate communication protocol data
Converted to communication data and sent to the simulator communication control unit, and the recording device read processing unit issues a command to execute the simulation of the communication protocol data recorded in the recording device connected to the recording device connection unit. At this time, the designated signal is read from the recording device and sent to the simulator communication control unit, and the simulator communication control unit receives the simulation data from the simulation arithmetic processing unit. At the same time, the line is connected by the sent simulation data, the communication protocol equivalent to that of the facsimile machine which is communicating is executed, and the simulation of the communication protocol data recorded in the recording device is executed. When instructed, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connecting section manages the connection with the external recording device. 3 protocol analyzer. 3. A monitor communication control unit, a control unit, a simulator communication control unit, and a recording device connection unit, wherein the monitor communication control unit detects a communication protocol of a facsimile device conforming to FTZ18TR53. However, the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device reading processing unit.The monitoring arithmetic processing unit and the communication protocol data detected by the monitor communication control unit are stored in advance. The stored standard value defined in FTZ18TR53 is compared, and when the comparison result is different, an error message is output, and the simulation arithmetic processing unit detects the facsimile machine detected by the monitor communication control unit. The communication protocol data is converted into simulation data and sent to the simulation communication control unit, and the recording device read processing unit is connected to the recording device connection unit. When the simulation execution of the communication protocol data recorded in the succeeding recording device is instructed, the specified signal is read from the recording device and sent to the simulator communication control unit, and the simulator is connected. When the simulation arithmetic processing unit sends the simulation data, the communication control unit establishes a line by the sent simulation data, and performs communication equivalent to that of the facsimile machine which is performing communication. When the protocol is executed and the simulation execution of the communication protocol data stored in the recording device is instructed, the transmitted communication protocol data is sequentially transmitted to the line, and the recording device connecting section is connected to the outside. A G3 protocol measuring device characterized by managing a connection with a recording device. 4. A monitor communication control unit, a control unit, a simulator communication control unit and a recording device connection unit, wherein the monitor communication control unit conforms to FTZ18TR53 and is a manufacturer of each facsimile machine. Detects the communication protocol that is independently performed by the control unit, and the control unit has a monitor arithmetic processing unit, a simulation arithmetic processing unit, and a recording device read processing unit, and the monitor arithmetic processing unit is a monitor communication control unit. The communication protocol data detected in step 1
The standard value defined for each car is compared, an error message is output when the comparison result is different, and the simulation arithmetic processing unit detects the facsimile machine detected by the monitor communication control unit. Simulate communication protocol data
The data is converted into communication data and sent to the simulator communication control unit, and the recording device read processing unit executes the simulation of the communication protocol data recorded in the recording storage device connected to the recording device connection unit. When instructed, the specified signal is read from the recording device and sent to the simulator communication control unit, and the simulator communication control unit receives simulation data from the simulation arithmetic processing unit. When the communication data is sent, the line is closed by the sent simulation data, the communication protocol equivalent to that of the facsimile device that was communicating is executed, and the simulation of the communication protocol data recorded in the recording device is executed. Is sent, the communication protocol data sent is sequentially transmitted to the line, and the recording device connection unit manages the connection with an external recording device. That G3 protocol measurement device.