JP3480773B2 - G3 protocol measurement device - Google Patents

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 apparatus to determine suitability, and more particularly, to improve the accuracy of analysis of an abnormality cause of communication protocol data and to confirm the cause of abnormality. It is about facilitating countermeasures.

[0002]

2. Description of the Related Art ITU Recommendation T. A G3 protocol measuring device is used to judge the suitability of a communication protocol of a facsimile device conforming to standard No. 30 or a communication protocol independently performed by a facsimile device manufacturer. 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. 30 and ITU Recommendation T.30. It is not easy to analyze whether or not it conforms to the standard value defined for each maker of each facsimile machine in accordance with 30.
It required specialized knowledge and a considerable amount of time for analysis. 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.

The present invention has been made in order to improve such disadvantages, and it automatically analyzes the measured communication protocol to obtain ITU Recommendation T.264. G3 protocol measuring device capable of clarifying the suitability of the communication protocol by displaying an error for each item different from the standard value defined in No. 30 or the standard value defined for each manufacturer of each facsimile machine. The purpose is to obtain.

[0006]

A G3 protocol measuring apparatus according to the present invention has a monitor communication control section, a control section, and a simulator communication control section. A communication protocol of a facsimile device compliant with 30 is detected, the control unit has a monitor arithmetic processing unit and a simulation arithmetic processing unit, and the monitor arithmetic processing unit detects the communication detected by the monitor communication control unit. Protocol data and ITU Recommendation T.3 stored in advance. 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. Simulation data
The data is converted into data and sent to the simulator communication control unit. The simulator communication control unit sends the simulation data when the simulation data is sent from the simulation arithmetic processing unit. When executing a communication protocol equivalent to that of the facsimile machine that was performing communication by connecting the line with the computer and executing multiple simulations in succession.
In addition, the simulator communication control unit
In this case, the calling operation is repeated at a predetermined time interval.
Return and execute simulation, monitor processing unit
Determines the suitability of each communication protocol and
Communication simulation data for which the judgment result of
The same name as the data name of
And are characterized.

The G3 protocol measuring device according to the second invention has a monitor communication control unit, a control unit, and a simulator communication control unit.
In accordance with No. 30, the communication protocol independently performed by the maker of each facsimile machine is detected, and the control section has a monitor arithmetic processing section and a simulation arithmetic processing section. 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 if the comparison results are different, an error message is displayed. 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 sends the simulation data to the simulator communication control unit. -The communication control unit for data, when the simulation data is sent from the arithmetic processing unit for simulation, connects the line with the sent simulation data, Run the facsimile apparatus equivalent communication protocol which has been subjected to signal a plurality of Shumire -
Communication control for the simulator when executing
If the other machine is not responding, the control section will decide in advance.
Simulation is performed by repeating the calling operation at regular time intervals.
Execute and monitor processing unit is in compliance with each communication protocol.
The communication protocol that has been executed and the communication protocol judgment result
Enter the same name as the data name of the credit simulation data.
It is characterized by being attached and recorded in the storage means.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a G3 protocol measuring device has a control section, a monitor communication control section, and a simulator communication control section. And ITU recommendation. T
30 Facsimile equipment communication protocol and ITU recommendation. In accordance with T30, the communication protocol which the manufacturer of each facsimile machine independently carries out is received by the monitor communication control section and sent to the control section. 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.

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 communication control unit for simulation or a recording medium to measure the communication. 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. In addition, when the partner machine does not respond when executing multiple simulations continuously, the calling operation is automatically repeated multiple times, and when the line is connected, the simulation is executed and the communication protocol Judge suitability
And the result of this judgment is executed.
Enter the same name as the data name of the data in the storage means.
Recorded and exchanged simulation data and simulation.
To be able to quickly check the execution result of the application.

[0011]

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 ( It has a CCU 5 for simulator.

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, and a modem control table storage unit 18. The function information table storage unit 16 stores ITU recommendation T.264. Three
0-compliant communication protocol function information and ITU Recommendation T. 30. Various function information of different non-standard procedure communication protocols set for each maker of each facsimile machine in accordance with the ITU-T No. 30 is stored in advance, and the protocol sequence table storage unit 17 stores ITU Recommendation T. A communication protocol sequence compliant with 30 and a non-standard procedure communication protocol sequence set for each manufacturer are stored.
A simulation is stored in 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 application.

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 6. 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 detection unit 54 and executes a simulation by connecting a line with the exchange 7.

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 uses the monitor communication control unit 4 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 S12). 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 16 (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 facsimile device to be judged is designated, the CPU 11 of the control unit 1 is designated to be stored in the data storage memory 2 when the communication protocol data is judged to be appropriate (step S21). 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 S23), 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. Thirty
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 S27), 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, the digital handshaking commands in the measurement data of the communication protocol are sequentially sent and received by the sender based on the non-standard procedure communication protocol sequence defined by the extracted manufacturer. The command is separated into side commands (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 measurement data of the communication protocol and the extraction of the modem control information are completed, the communication control unit 5 for simulator is set to save the simulation data. When it is designated, the simulation data set in the modem control table storage section 18 is recorded in the data storage memory 2, and the data is stored in the communication control section 5 for the simulator. To (step S5
4, 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.

Also, 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 apparatus, the situation of the communication failure can be reproduced and confirmed, and the reason of the communication failure can be clarified. Measures can be taken reliably.

In the above-mentioned simulation processing, a case has been described in which the propriety of the measured communication protocol data is judged and the judgment result is immediately reproduced and confirmed. However, 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. When the simulator communication control unit 5 is instructed to perform continuous simulation execution processing and the communication simulation data is sent, the simulation is performed by establishing a line based on the sent simulation data.
(Steps S63 and S6)
4). Because of the continuous execution processing of this simulation, for example, when the line is connected and used with the facsimile device 6, the facsimile device 6 prints out the communication management report and is not ready for reception. When the line is not closed (step S64), the simulator communication control unit 5 repeats the calling operation at regular time intervals (step S65). If the line is not closed even after repeating this call a predetermined number of times (step S66,
S67), the continuous simulation execution process is temporarily terminated. Once the line is concluded, the simulator communication control unit 5
Sends the simulation data to the line based on the contents of the sent simulation data and executes the simulation (steps S68, S69). 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. This measurement result is given the same name as the data name of the executed communication simulation data, and the data storage memory 2 together with the judgment result of the communication protocol.
Is recorded (steps S70 and S71). When the simulation for one communication is executed and the measurement result is recorded in the data storage memory 2 (step S71), the CPU
Reference numeral 11 is the simulation data for the next communication from the data storage memory 2 in which the simulation data is recorded.
The data is extracted and stored in the RAM 13 (step S72), and the simulation is executed in the same manner as above based on the extracted communication simulation data (steps S73, S).
68-S71). This process is automatically repeated for all the communication simulation data recorded in the data storage memory 2, and the simulation results by all the communication simulation data are stored in the data storage memory. When recorded in 2, the process ends (step S73).

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 manually operated. 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.

[0029]

As described above, the present invention provides the ITF.
Recommendation T. Facsimile device communication protocol conforming to the standard No. 30 and ITF Recommendation T.30. In conformity with No. 30, the communication protocol which the manufacturer of each facsimile machine independently conducts is measured, and the measured communication protocol data is compared with the standard value stored in advance, and the suitability of the measured communication protocol is checked. By analyzing each item and displaying the analysis result, it is possible to easily and accurately confirm the suitability of the communication protocol, and even if you do not have specialized knowledge, you can accurately analyze the communication protocol in a short time. You can do it well. 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 thus the communication failure occurs. It is possible to surely take countermeasures related to the factors and easily confirm the results of the countermeasures.

Further, when the confirmation of a plurality of simulation data including the cause of the communication failure is continuously executed, the calling operation is automatically repeated to execute the simulation, so that it is unattended at midnight. Therefore, the communication test can be performed, and the time required for inspection and analysis of the communication protocol can be greatly reduced. In addition, multiple simulators
Judgment of each communication protocol when continuously executing
The result is the data of the executed communication simulation data.
Since the same name as the data name is recorded in the storage means,
Execution of credit simulation data and simulation
When the results can be confirmed quickly and analysis work is required
The time can be greatly shortened and the cause of communication failure can be identified accurately.
Can be confirmed and the measures can be taken promptly.
Wear.

[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.

[Explanation of symbols]

1 Control Unit 2 Data Storage Memory 3 Display Unit 4 Communication Control Unit for Monitor (CCU for Monitor) 5 Communication Control Unit for Simulator (C for Simulator)
CU) 6 Facsimile device 11 CPU 13 RAM 14 Calculation processing section for monitor 15 Calculation processing section for simulation 16 Function information table storage section 17 Protocol sequence table storage section 18 Modem control table storage section

Continuation of the front page (56) Reference JP 62-57359 (JP, A) JP 57-54466 (JP, A) JP 7-135543 (JP, A) JP 6-261169 (JP , A) JP-A-6-105112 (JP, A) JP-A-5-276270 (JP, A) JP-A-4-240957 (JP, A) JP-A-3-232347 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04N 1/00-1/00 108 H04N 1/32-1/36 101

Claims (2)

(57) [Claims] 1. A monitor communication control unit, a control unit, and a simulator communication control unit, wherein the monitor communication control unit is ITU Recommendation T.264. A communication protocol of a facsimile device compliant with 30 is detected, the control unit has a monitor arithmetic processing unit and a simulation arithmetic processing unit, and the monitor arithmetic processing unit detects the communication detected by the monitor communication control unit. Protocol data and ITU Recommendation T.3 stored in advance. 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 simulation communication control unit. When the simulation communication processing unit sends simulation data from the simulation arithmetic processing unit. , The line is connected by the sent simulation data, the communication protocol equivalent to that of the facsimile machine which is performing communication is executed, and the simulation is executed when a plurality of simulations are continuously executed.
The communication control unit for the monitor is
The calling operation is repeated at predetermined fixed time intervals
The simulation is executed and the monitor arithmetic processing unit
The suitability of the protocol is judged and the judgment result of each communication protocol is determined.
The data of the exchange simulation data that has been executed.
A G3 protocol measuring device characterized in that the same name as the name is recorded in the storage means . 2. A monitor communication control unit, a control unit, and a simulator communication control unit, wherein the monitor communication control unit is defined by ITU Recommendation T.264. In conformity with the standard 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 and a simulation arithmetic processing section. 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 is reported.
A message is output, 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 sends it to the simulator communication control unit. The facsimile communication device, when the simulation data is sent from the simulation arithmetic processing unit, establishes a line by the sent simulation data and performs communication. and perform the equivalent communication protocol, multiple Shumire - when the continuous execution of Deployment, stain
The communication control unit for the monitor is
The calling operation is repeated at predetermined fixed time intervals
The simulation is executed and the monitor arithmetic processing unit
The suitability of the protocol is judged and the judgment result of each communication protocol is determined.
The data of the exchange simulation data that has been executed.
A G3 protocol measuring device characterized in that the same name as the name is recorded in the storage means .