JP5811742B2 - communication device - Google Patents

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JP5811742B2
JP5811742B2 JP2011214018A JP2011214018A JP5811742B2 JP 5811742 B2 JP5811742 B2 JP 5811742B2 JP 2011214018 A JP2011214018 A JP 2011214018A JP 2011214018 A JP2011214018 A JP 2011214018A JP 5811742 B2 JP5811742 B2 JP 5811742B2
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confirmation
communication
communication device
wireless communication
results
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JP2013074578A (en
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児島 敦司
敦司 児島
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ブラザー工業株式会社
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Description

  The present specification discloses a first communication device for executing wireless communication via an access point with a second communication device.

  For example, Patent Document 1 discloses a terminal device that performs wireless communication with a server device via an access point. The terminal device performs a failure investigation on the communication path between the terminal device and the server device. The terminal device first checks whether communication with the access point can be established. The terminal device records an access point error when communication with the access point cannot be established. When the communication with the access point can be established, the terminal device investigates whether the communication with the server device can be established through the access point. The terminal device records a communication setting error or a LAN route error when communication with the server device cannot be established.

JP 2005-197883 A

  The present specification provides a technique capable of providing a user with appropriate analysis result information regarding a wireless communication state between a first communication device and a second communication device.

  The present specification discloses a first communication device for executing wireless communication via an access point with a second communication device. The first communication device includes a confirmation unit, an analysis unit, and an output unit. The confirmation unit transmits the first packet in which the specific communication identification information that is one of the communication identification information of the second communication device and the communication identification information of the access point is designated as the transmission destination, The first confirmation process for confirming whether or not a response packet to the packet is received is executed. The analysis unit wirelessly communicates between the first communication device and the second communication device using the M first confirmation results acquired by the first confirmation processing M times (M ≧ 2). Analyze the state and generate analysis result information. When the wireless communication state is a communication disabled state, the analysis result information includes at least one of a cause of the communication disabled state and a countermeasure for eliminating the communication disabled state. The output unit outputs the analysis result information to the outside.

  According to said structure, a 1st communication apparatus transmits a 1st packet by making one of a 2nd communication apparatus and an access point into a transmission destination, and performs a 1st confirmation process. Then, the first communication device uses the plurality of (that is, M) first confirmation results acquired by the plurality of (that is, M) first confirmation processes executed in the past to In order to analyze the wireless communication state between the communication device and the second communication device, the wireless communication state can be analyzed with high accuracy. Accordingly, the first communication device can provide appropriate analysis result information to the user in order to generate appropriate analysis result information and output it to the outside. For this reason, the user can appropriately perform the work for eliminating the communication impossible state based on the analysis result information.

  The specific communication identification information may be communication identification information of the second communication device. The confirmation unit further transmits a second packet in which the communication identification information of the access point is designated as a transmission destination, and confirms whether or not a response packet to the second packet is received. May be executed. The analysis unit analyzes the wireless communication state by using the M first confirmation results and the N second confirmation results acquired by N (N ≧ 2) second confirmation processes. May be. According to this configuration, the first communication device transmits the first packet with the second communication device as the transmission destination, executes the first confirmation processing, and also uses the access point as the transmission destination with the second packet. Is transmitted to execute the second confirmation process. The first communication device is executed in the past with a plurality of (that is, M) first confirmation results acquired by a plurality of (that is, M) first confirmation processes executed in the past. In order to analyze the wireless communication state using a plurality of (that is, N) second confirmation results obtained by the plurality of (that is, N times) second confirmation processes, the wireless communication state is It can be analyzed with high accuracy. Therefore, the first communication device can provide appropriate analysis result information to the user.

  The confirmation unit may execute one first confirmation process and one second confirmation process almost simultaneously. The analysis unit obtains the first and second confirmations obtained by the first and second confirmation processes executed substantially simultaneously between the M first confirmation results and the N second confirmation results. If the coincidence rate, which is the probability that the results match, is higher than a specific value, generate analysis result information related to the unstable radio wave condition between the first communication device and the access point Also good. According to this configuration, the first communication device can provide the user with analysis result information related to the unstable radio wave condition between the first communication device and the access point. For this reason, the user can appropriately perform an operation for stabilizing the radio wave state between the first communication device and the access point.

  The analysis unit has a match rate lower than the specific value, and N second confirmation results indicate N1 (N1 ≦ N) or more second values indicating that wireless communication can be performed. When the confirmation result is included, analysis result information related to an unstable radio wave state between the second communication device and the access point may be generated. According to this configuration, the first communication device can provide the user with analysis result information related to the unstable radio wave condition between the second communication device and the access point. For this reason, the user can appropriately perform an operation for stabilizing the radio wave state between the second communication device and the access point.

  The analysis unit indicates that all of the M first confirmation results indicate that wireless communication cannot be performed, and that the N second confirmation results indicate that wireless communication can be performed. When N2 (N2 ≦ N) or more second confirmation results are included, the second communication device is turned off and the access point setting causes the wireless communication relay function to stop. It is also possible to generate at least one related analysis result information that the setting is 1. According to this configuration, the first communication device has at least one related analysis result information that the power of the second communication device is turned off and that the access point setting is the first setting. Can be provided to the user. For this reason, the user appropriately performs at least one of the work for turning on the power of the second communication device and the work for changing the setting of the access point from the first setting to another setting. Can run into.

  The analysis unit indicates that all of the M first confirmation results cannot execute the wireless communication, and all of the N second confirmation results cannot execute the wireless communication. Analysis result information related to at least one of the fact that the power of the access point is turned off and the wireless settings do not match between the first communication device and the access point. It may be generated. According to this configuration, the first communication device can provide the user with analysis result information related to at least one of the fact that the power of the access point is turned off and the wireless settings do not match. . For this reason, the user can appropriately perform at least one of the work for turning on the power of the access point and the work for matching the wireless settings.

  The confirmation unit performs M1 (M1 ≧ 2) first confirmation processes during the first day, acquires M1 first confirmation results, and is different from the first day. M2 times (M2 ≧ 2) of the first confirmation process may be executed to obtain M2 first confirmation results. The analysis unit may analyze the wireless communication state using M first confirmation results including M1 first confirmation results and M2 first confirmation results. The analysis unit has the same time period in which the first confirmation result indicating that wireless communication cannot be performed is obtained between the M1 first confirmation results and the M2 first confirmation results. In some cases, analysis result information relating to the fact that the setting of the access point is a second setting for stopping the relay function of wireless communication in a predetermined time zone during one day may be generated. According to this configuration, the first communication device can provide the user with analysis result information related to the setting of the access point being the second setting. For this reason, the user can appropriately perform an operation for changing the setting of the access point from the second setting to another setting.

  The specific communication identification information may be communication identification information of the access point. According to this configuration, the first communication device can execute the first confirmation process by transmitting the first packet with the access point as the transmission destination.

  One of the first communication device and the second communication device receives the FAX data from the outside, and the other of the first communication device and the second communication device via the access point. An apparatus for transmitting FAX data to the apparatus may be used. The other apparatus may be an apparatus for receiving FAX data from the one apparatus described above via an access point and executing printing according to the FAX data. As described above, in order for the first communication device to provide appropriate analysis result information to the user, the wireless communication state between the first communication device and the second communication device is disabled. Can be suppressed. Therefore, since the FAX data is appropriately transmitted from the one apparatus to the other apparatus, the other apparatus can appropriately execute printing according to the FAX data.

  Note that a control method, a computer program, and a computer-readable storage medium for storing the computer program for realizing the first communication apparatus are also novel and useful. A wireless communication system including the first communication device and the second communication device is also new and useful.

1 shows a configuration of a wireless communication system. 3 shows a flowchart of main processing executed by the multi-function device. The flowchart of the analysis display process which a multi-function device performs is shown. Various cases where wireless communication states between the multi-function device and the calling device are different are shown. An example of the confirmation result of each case is shown. The explanatory view in which the contents of the 2nd example were described is shown. The explanatory view in which the contents of the 3rd example were described is shown.

(First embodiment)
(System configuration)
As shown in FIG. 1, the wireless communication system 2 includes a PC 4, an access point (hereinafter referred to as “AP”) 6, a multi-function device 10, and a call device 70. The multi-function device 10 and the call device 70 can wirelessly communicate with each other via the AP 6. That is, the multi-function device 10 and the telephone device 70 can execute infrastructure wireless communication.

(Configuration of multi-function device 10)
The multi-function device 10 can execute multi-functions such as a print function, a scan function, and a copy function. The multi-function device 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, a wireless interface 20, a wired interface 22, and a control unit 30. The operation unit 12 includes a plurality of keys. The user can input various instructions to the multi-function device 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS. The wireless interface 20 is an interface for executing wireless communication. The wired interface 22 is an interface for executing wired communication.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 executes various processes according to the program stored in the memory 34. When the CPU 32 executes the process according to the above program, the functions of the confirmation unit 40, the analysis unit 42, and the output unit 44 are realized.

  The memory 34 includes a ROM, a RAM, and the like, and stores wireless setting information, the IP address of the AP 6, the IP address of the calling device 70, confirmation result information, and the like in addition to the above programs. The wireless setting information is information set (input) to the multi-function device 10 by the user. The wireless setting information is information for executing wireless communication of FAX data via the AP 6 between the multi-function device 10 and the calling device 70. The wireless setting information includes, for example, an SSID (Service Ser Identifier), an authentication method, an encryption method, a password, and the like. The IP address of the AP 6 and the IP address of the call device 70 are information set (input) to the multi-function device 10 by the user. The confirmation result information will be described later (see FIG. 5).

(Configuration of calling device 70)
The call device 70 is an accessory of the multi-function device 10. That is, the call device 70 is not shipped alone but shipped with the multi-function device 10. The call device 70 includes a microphone 72, a speaker 74, a PSTN interface 76, a wireless interface 78, and a control unit 80. The PSTN interface 76 is connected to a PSTN (Public Switched Telephone Network) 8 which is a general public line network. The wireless interface 78 is an interface for executing wireless communication.

  The control unit 80 includes a CPU 82 and a memory 84. The CPU 82 executes various processes in accordance with programs stored in the memory 84. The memory 84 is configured by a ROM, a RAM, and the like, and stores the wireless setting information and the like in addition to the program. For example, the calling device 70 receives the wireless setting information from the multi-function device 10 and stores the wireless setting information in the memory 84.

  For example, the user can use the calling device 70 to place a call to another telephone connected to the PSTN 8. In this case, the calling device 70 transmits voice data corresponding to the voice input to the microphone 72 to the other telephone set via the PSTN interface 76. Further, when the voice data transmitted from the other telephone is received by the PSTN interface 76, the calling device 70 causes the speaker 74 to output a voice corresponding to the voice data. Thereby, a telephone function is realized.

  In addition, the multi-function device 10 and the telephone device 70 cooperate to execute the processing, thereby realizing the FAX function. For example, when FAX data is received by the PSTN interface 76, the calling device 70 transmits the FAX data to the multi-function device 10 via the AP 6. When the FAX data is received by the wireless interface 20, the multi-function device 10 causes the print execution unit 16 to execute printing according to the FAX data. Thereby, a FAX reception function is realized. In addition, the multi-function device 10 transmits FAX data generated by the scan execution unit 18 executing the scan to the call device 70 via the AP 6. When the fax data is received by the wireless interface 78, the calling device 70 transmits the fax data to a destination in the PSTN 8 designated in advance by the user. Thereby, the FAX transmission function is executed.

(Configuration of PC4)
The PC 4 can execute wireless communication via the AP 6. For example, the PC 4 transmits print data to the multi-function device 10 via the AP 6. When the print data is received by the wireless interface 20, the multi-function device 10 causes the print execution unit 16 to execute printing according to the print data. Thereby, the printing function is executed.

(Configuration of AP6)
In the AP 6, the above wireless setting information is set in advance by the user. The AP 6 can execute the following various functions. The AP 6 can execute a relay function for receiving data from a first device (for example, the multi-function device 10) existing in the LAN and transferring the data to a second device (for example, the call device 70) in the LAN. It is. The AP 6 can execute a router function that receives data from a device existing in the LAN and transmits the data to the outside of the LAN (that is, the Internet). In addition, when receiving a PING packet in which the IP address of the AP 6 is designated as a transmission destination from a device existing in the LAN, the AP 6 can execute a reply function that returns a response packet.

  In addition, the AP 6 can operate according to any one of a normal mode, an eco mode, and a separate mode. The normal mode is a mode for always executing all the above functions (relay function, router function, reply function). The eco mode is a mode for stopping all the functions in a predetermined time zone designated by the user and executing all the functions in a time zone other than the predetermined time zone. Since all the above functions are stopped during the predetermined time period, the power consumption of the AP 6 can be reduced. The separate mode is a mode for always executing the router function and the reply function, but always stopping the relay function.

(Main processing executed by the multi-function device 10; FIG. 2)
The main processing of FIG. 2 is that wireless setting information (ie, infrastructure wireless setting information) for executing wireless communication via the AP 6 between the multi-function device 10 and the call device 70 is stored in the multi-function device 10. Always executed when stored.

  In S10, the confirmation unit 40 (see FIG. 1) of the multi-function device 10 monitors whether the timer value reaches a predetermined value (2 hours in this embodiment). When the timer value reaches the predetermined value (YES in S10), the process proceeds to S12.

  In S 12, the confirmation unit 40 acquires the IP address of AP 6 stored in the memory 34. Next, the confirmation unit 40 writes the IP address of the AP 6 in the part where the transmission destination address is described in the header of the PING packet. As a result, a PING packet in which the IP address of AP6 is designated as the destination address is generated. Next, the confirmation unit 40 transmits the PING packet (that is, the PING packet to the AP 6). And the confirmation part 40 confirms whether the response packet with respect to the PING packet to AP6 is received.

  In S <b> 14, the confirmation unit 40 acquires the IP address of the call device 70 stored in the memory 34. Next, the confirmation unit 40 writes the IP address of the call device 70 in a part where the transmission destination address is described in the header of the PING packet. As a result, a PING packet in which the IP address of the call device 70 is designated as the transmission destination address is generated. Next, the confirmation unit 40 transmits the PING packet (that is, the PING packet to the call device 70). Then, the confirmation unit 40 confirms whether or not a response packet to the PING packet to the call device 70 is received. Thus, in the present embodiment, the confirmation unit 40 executes the confirmation process of S12 and the confirmation process of S14 almost simultaneously.

  In S16, the confirmation unit 40 updates the confirmation result information in the memory 34 based on the confirmation processing results in S12 and S14. In the present embodiment, the confirmation unit 40 performs the confirmation process of S12 and S14 every two hours. Further, the memory 34 can store confirmation result information indicating the result of confirmation processing for the last two days. Therefore, the confirmation result information includes 24 pieces of information (48 hours / 2 hours) as a result of the confirmation process in S12 and 24 pieces of information as a result of the confirmation process in S14.

  FIG. 5 shows an example of confirmation result information for two days stored in various cases described later. In the figure, the “AP” column indicates the result of the confirmation process of S12 (ie, transmission of a PING packet to AP6), and the “CD” column indicates the confirmation process of S14 (ie, call device). The result of transmission of a PING packet to 70) is shown. “OK” indicates that a response packet to the PING packet has been received. “NG” indicates that a response packet to the PING packet was not received. In the following, the confirmation process in S12 is referred to as “AP confirmation process”, and the confirmation process in S14 is referred to as “CD confirmation process”.

  The confirmation result information is associated with time information (for example, 0 (h)) indicating how many hours ago the result of the 24 AP confirmation processes and the result of the 24 CD confirmation processes are confirmation processes. Information. In S16 of FIG. 2, the confirmation unit 40 firstly, the result of the oldest AP confirmation process included in the confirmation result information and the result of the CD confirmation process (that is, the result of the AP confirmation process associated with 46 (h)). And the result of the CD confirmation process). Then, the confirmation unit 40 adds 2 hours to each of the remaining 23 pieces of time information (0 (h) to 44 (h)) included in the confirmation result information. Next, the confirmation unit 40 causes the memory 34 to store the results of the AP confirmation process and the CD confirmation process executed immediately before the process of S16 in association with 0 (h). Thereby, the update of the confirmation result information is completed.

  When the process of S16 in FIG. 2 is finished, in S18, the analysis unit 42 and the output unit 44 (see FIG. 1) execute an analysis display process. The contents of the analysis display process will be described later. Next, in S20, the confirmation unit 40 resets the timer value and returns to S10. Thereby, the confirmation unit 40 executes the AP confirmation process (S12) and the CD confirmation process (S14) every two hours (periodically).

(Various cases; Fig. 4)
Before describing the contents of the analysis display process in S18 of FIG. 2, various cases relating to the wireless communication state between the multi-function device 10 and the calling device 70 will be described with reference to FIG. In each case of FIG. 4, the arrows arranged above “multi-function device”, “AP”, and “calling device” indicate the PING packet and the response packet for AP confirmation processing, and are arranged below. The arrows shown indicate the PING packet and the response packet for the CD confirmation process.

(Case A)
In case A of FIG. 4, AP6 is set to the normal mode. In addition, the wireless communication state between the multi-function device 10 and the AP 6 is normal, and the wireless communication state between the calling device 70 and the AP 6 is normal. Accordingly, when the multi-function device 10 executes the AP confirmation process, the multi-function device 10 can receive a response packet from the AP 6. Further, when the multi-function device 10 executes the CD confirmation process, the multi-function device 10 can receive a response packet from the call device 70 via the AP 6. Therefore, as shown in case A of FIG. 5, the result of the AP confirmation process is normally always “OK”, and the result of the CD confirmation process is usually always “OK”.

(Case B)
In Case B of FIG. 4, AP6 is set to the normal mode. Further, the power of the calling device 70 is turned off. In this case, when the multi-function device 10 executes the AP confirmation process, the multi-function device 10 can receive a response packet from the AP 6. However, even if the multi-function device 10 executes the CD confirmation process, the multi-function device 10 cannot receive the response packet because the calling device 70 does not receive the PING packet. Therefore, as shown in Case B of FIG. 5, the result of the AP confirmation process is normally always “OK”, but the result of the CD confirmation process is usually always “NG”.

(Case C)
In case C of FIG. 4, AP6 is set to the eco mode. In this case, when the multi-function device 10 executes the AP confirmation process in a predetermined time zone (for example, night time) designated by the user, the AP 6 does not execute the reply function. Cannot receive. In addition, when the multi-function device 10 executes the CD confirmation process during the predetermined time period, as a result of the AP 6 not performing the relay function, the call device 70 does not receive the PING packet. The response packet cannot be received. However, the multi-function device 10 can receive the response packet regardless of whether the multi-function device 10 executes the AP confirmation processing or the CD confirmation processing in a time zone other than the predetermined time zone. Therefore, as shown in case C of FIG. 5, the result of the AP confirmation process and the CD confirmation process is normally always “NG” in the predetermined time period, and is a time other than the predetermined time period. Normally, the band is always “OK”.

(Case D)
In case D of FIG. 4, AP6 is set to the normal mode. Further, the wireless communication state between the multi-function device 10 and the AP 6 is normal, but the radio wave state between the calling device 70 and the AP 6 is unstable. Such a situation can occur, for example, when the distance between the calling device 70 and the AP 6 is large. In this case, when the multi-function device 10 executes the AP confirmation process, the multi-function device 10 can receive the response packet. However, if the multi-function device 10 executes the CD confirmation process while the radio wave condition between the call device 70 and the AP 6 is poor, the call device 70 does not receive the PING packet, so that the multi-function device 10 Can not receive. However, if the multi-function device 10 executes the CD confirmation process while the radio wave condition between the calling device 70 and the AP 6 is good, the multi-function device 10 can receive the response packet. Therefore, as shown in case D of FIG. 5, the result of the AP confirmation process is normally always “OK”, but the result of the CD confirmation process is irregularly “OK” or “NG”.

(Case E)
In case E of FIG. 4, AP6 is set to the normal mode. Further, although the wireless communication state between the calling device 70 and the AP 6 is normal, the radio wave state between the multi-function device 10 and the AP 6 is unstable. Such a situation can occur, for example, when the distance between the multi-function device 10 and the AP 6 is large. In this case, because the multi-function device 10 does not receive the PING packet regardless of whether the multi-function device 10 executes the AP confirmation process or the CD confirmation process while the radio wave condition between the multi-function device 10 and the AP 6 is poor. The multi-function device 10 cannot receive a response packet. However, regardless of whether the multi-function device 10 executes the AP confirmation process or the CD confirmation process while the radio wave condition between the multi-function device 10 and the AP 6 is good, the multi-function device 10 does not send a response packet. Can be received. Therefore, as shown in case E of FIG. 5, the results of the AP confirmation process and the CD confirmation process are irregularly “OK” or “NG”. In addition, the same result is obtained in one AP confirmation process and one CD confirmation process executed at substantially the same timing.

(Case F)
In case F of FIG. 4, the AP 6 is powered off. In this case, regardless of whether the multi-function device 10 executes the AP confirmation process or the CD confirmation process, the multi-function device 10 cannot receive the response packet because the AP 6 does not receive the PING packet. Therefore, as shown in Case F of FIG. 5, the result of the AP confirmation process is normally always “NG”, and the result of the CD confirmation process is usually always “NG”. Even when the power of the AP 6 is turned on, if the wireless setting information set in the multi-function device 10 and the wireless setting information set in the AP 6 do not match, The AP 6 cannot receive the PING packet from the multi-function device 10. In this case, the same result as in Case F is obtained.

(Case G)
In case G of FIG. 4, AP6 is set to the separate mode. As described above, in the separate mode, the AP 6 always executes the router function and the reply function, but always stops the relay function. Therefore, when the multi-function device 10 executes the AP confirmation process, the multi-function device 10 can receive the response packet. However, when the multi-function device 10 executes the CD confirmation process, the multi-function device 10 cannot receive the response packet because the AP 6 does not execute the relay function. Therefore, as shown in case G of FIG. 5, the result of the AP confirmation process is normally always “OK”, and the result of the CD confirmation process is usually always “NG”. Note that the result of case G is the same as the result of case B.

(Analysis display processing; Fig. 3)
Next, the contents of the analysis display process executed in S18 of FIG. 2 will be described. As shown in FIG. 3, in S <b> 30, the analysis unit 42 determines whether or not the latest CD confirmation processing result included in the confirmation result information in the memory 34 is “OK”. For example, in case A of FIG. 5, the latest CD confirmation processing result (that is, the CD confirmation processing result corresponding to “0 (h)”) is “OK”. Therefore, in case A, the analysis unit 42 determines YES in S30 and ends the analysis display process. On the other hand, for example, in the cases B to G in FIG. 5, the latest result of the CD confirmation process is “NG”. Therefore, in cases B to G, the analysis unit 42 determines NO in S30 and proceeds to S32.

  In S32, the analysis unit 42 determines whether or not all the results of the 24 CD confirmation processes included in the confirmation result information in the memory 34 are “NG”. For example, in cases B, F, and G of FIG. 5, all the results of the 24 CD confirmation processes are “NG”. Therefore, in cases B, F, and G, the analysis unit 42 determines YES in S32 and proceeds to S34. On the other hand, for example, in cases C, D, and E of FIG. 5, all the results of the 24 CD confirmation processes are not “NG”. Therefore, in cases C, D, and E, the analysis unit 42 determines NO in S32 and proceeds to S36.

  In S34, the analysis unit 42 determines whether or not all the results of the 24 AP confirmation processes included in the confirmation result information in the memory 34 are “NG”. For example, in case F of FIG. 5, all results of the 24 AP confirmation processes are “NG”. Therefore, in case F, the analysis unit 42 determines YES in S34 and proceeds to S50. On the other hand, in cases B and G in FIG. 5, all the results of the 24 AP confirmation processes are not “NG”. Therefore, in cases B and G, the analysis unit 42 determines NO in S34 and proceeds to S52.

  As described above, when the power of the AP 6 is turned off, or when the wireless setting information does not match between the multi-function device 10 and the AP 6, the confirmation result as in the case F of FIG. can get. Accordingly, in S50, the analysis unit 42 prompts the first character string that prompts the AP 6 to turn on and the second character string that prompts the wireless setting information between the multi-function device 10 and the AP 6 to match. And generating analysis result information. Then, the output unit 44 causes the display unit 14 to display analysis result information. As a result, the user can execute a work for turning on the power of the AP 6 and / or a work for matching the wireless setting information between the multi-function device 10 and the AP 6.

  In the modification, in S50, the analysis unit 42 may generate analysis result information including only the first character string, or generate analysis result information including only the second character string. May be. That is, the analysis unit 42 generates analysis result information related to at least one of the fact that the power of the AP 6 is turned off and the wireless setting information does not match between the multi-function device 10 and the AP 6. do it.

  As described above, when the power of the calling device 70 is turned off (case B), or when the AP 6 is operating in the separate mode (case G), as shown in cases B and G of FIG. A confirmation result is obtained. Accordingly, in S52, the analysis unit 42 includes analysis result information including the third character string that prompts the power to the telephone device 70 to be turned on and the fourth character string that prompts the AP6 to release the separate mode. Is generated. Then, the output unit 44 causes the display unit 14 to display analysis result information. As a result, the user can execute a task for turning on the power of the telephone device 70 and / or a task for canceling the separation mode of the AP 6.

  In the modification, in S52, the analysis unit 42 may generate the analysis result information including only the third character string or the analysis result information including only the fourth character string. May be. In other words, the analysis unit 42 may generate analysis result information related to at least one of the fact that the power of the call device 70 is turned off and the setting of the AP 6 is a separate mode setting.

  Hereinafter, one AP confirmation process and one CD confirmation process executed at substantially the same timing are referred to as “one set confirmation process”. In S <b> 36, the analysis unit 42 sets “NG” between the result of the 12 sets of confirmation processes on the first day and the result of the 12 sets of confirmation processes on the second day included in the confirmation result information in the memory 34. It is determined whether or not the obtained time zones are equivalent. For example, in the case C of FIG. 5, the result of the three sets of confirmation processing corresponding to 0 (h) to 4 (h) on the first day is “NG”, and 0 (h) to 4 ( The result of the three sets of confirmation processing corresponding to 24 (h) to 28 (h) on the second day, which is the same time zone as h), is “NG”. Therefore, in case C, the analysis unit 42 determines YES in S36 and proceeds to S54. On the other hand, in the cases D and E of FIG. 5, the time zone in which “NG” is obtained is not equivalent. Therefore, in cases D and E, the analysis unit 42 determines NO in S36 and proceeds to S38. More specifically, in S36, the analysis unit 42 performs the following analysis.

  That is, the analysis unit 42 first identifies a time zone in which the results of both the AP confirmation process and the CD confirmation process are “NG” from the results of the 12 sets of confirmation processes on the first day. In case C of FIG. 5, the analysis unit 42 specifies 0 (h) to 4 (h). Next, the analysis unit 42 adds 24 (h) to the specified time zone (0 (h) to 4 (h)), and the time zone (24 (24 (h)) corresponding to the specified time zone. h) to 28 (h)) are calculated. Next, the analysis unit 42 determines that all the results of the confirmation processing of each set corresponding to the calculated time zone (24 (h) to 28 (h)) are “ NG "or not. The analysis unit 42 determines YES in S36 when all the results of the confirmation processing for each set are “NG”, and if all the results of the confirmation processing for each set are not “NG”. Therefore, NO is determined in S36.

  Note that, as described above, in S36, the analysis unit 42 may determine whether or not the time periods in which “NG” is obtained completely match, but in the modification, the analysis unit 42 performs the second day. Among the results of the 12 sets of confirmation processing, among the results of the confirmation processing of each set corresponding to the calculated time zone (24 (h) to 28 (h)), a result of a predetermined ratio (for example, 90%) or more It may be determined whether or not is “NG”. Even in this case, the analysis unit 42 can appropriately determine whether or not the time periods in which “NG” is obtained are equivalent. In the modification, in S36, the analysis unit 42 does not use both the result of the AP confirmation process and the result of the CD confirmation process, and one of the result of the AP confirmation process and the result of the CD confirmation process. Whether the time period in which “NG” is obtained is equivalent between the result of the 12 confirmation processes on the first day and the result of the 12 confirmation processes on the second day It may be judged.

  As described above, when the AP 6 is operating in the eco mode, a confirmation result such as case C in FIG. 5 is obtained. Accordingly, in S54, the analysis unit 42 generates analysis result information including the fifth character string that prompts the user to cancel the eco mode of AP6. Then, the output unit 44 causes the display unit 14 to display analysis result information. As a result, the user can execute an operation for canceling the eco mode of AP6.

  In S38, the analysis unit 42 determines whether or not the result of the 24 CD confirmation processes included in the confirmation result information in the memory 34 indicates a relatively high success rate. Specifically, the analysis unit 42 first specifies the number of “OK” from the results of the 24 CD confirmation processes. Next, the analysis unit 42 determines whether or not the number of identified “OK” is equal to or greater than a first predetermined value (for example, 20), and the number of identified “OK” is equal to or greater than a first predetermined value. If YES, it is determined YES in S38, the analysis display process is terminated, and if the number of identified “OK” is less than the first predetermined value, it is determined NO in S38, Proceed to S40. For example, in cases D and E of FIG. 5, the number of “OK” in the results of the 24 CD confirmation processes is less than 20, so the analysis unit 42 determines NO in S38.

  In S40, the analysis unit 42 sets the result of the AP confirmation process and the result of the CD confirmation process in the result of the 24 sets of confirmation processes included in the confirmation result information in the memory 34 (hereinafter referred to as “matching set”). It is determined whether or not the ratio is relatively high. Specifically, the analysis unit 42 first identifies the number of matching sets from the results of the 24 sets of confirmation processing. Next, the analysis unit 42 determines whether or not the number of identified matching sets is equal to or greater than a second predetermined value (for example, 20), and the number of identified matching sets is equal to or greater than a second predetermined value. In this case, YES is determined in S40, and the process proceeds to S56. If the number of identified matching sets is less than the second predetermined value, NO is determined in S40 and the process proceeds to S42. For example, in case E of FIG. 5, since the number of matching sets is 20 or more, the analysis unit 42 determines YES in S40. Further, for example, in case D of FIG. 5, since the number of matching sets is less than 20, the analysis unit 42 determines NO in S40.

  As described above, when the radio wave state between the multi-function device 10 and the AP 6 is unstable, a confirmation result as in case E of FIG. 5 is obtained. Accordingly, in S56, the analysis unit 42 generates analysis result information including a sixth character string that prompts the distance between the multi-function device 10 and the AP 6 to be reduced. Then, the output unit 44 causes the display unit 14 to display analysis result information. As a result, the user can execute an operation for reducing the distance between the multi-function device 10 and the AP 6.

  In S42, the analysis unit 42 determines whether or not the result of the 24 AP confirmation processes included in the confirmation result information in the memory 34 indicates a relatively high success rate. Specifically, the analysis unit 42 first specifies the number of “OK” from the results of the 24 AP confirmation processes. Next, the analysis unit 42 determines whether or not the number of identified “OK” is equal to or greater than a third predetermined value (for example, 20), and the number of identified “OK” is equal to or greater than a third predetermined value. If YES, it is determined YES in S42, and the process proceeds to S58. If the number of identified “OK” is less than the third predetermined value, NO is determined in S42, and the process proceeds to S56. . For example, in case D of FIG. 5, the number of “OK” in the results of the 24 AP confirmation processes is 20 or more, so the analysis unit 42 determines YES in S42.

  As described above, when the radio wave state between the calling device 70 and the AP 6 is unstable, a confirmation result as in case D of FIG. 5 is obtained. Therefore, in S58, the analysis unit 42 generates analysis result information including the seventh character string that prompts the distance between the call device 70 and the AP 6 to be reduced. Then, the output unit 44 causes the display unit 14 to display analysis result information. As a result, the user can execute an operation for reducing the distance between the calling device 70 and the AP 6.

(Effect of this embodiment)
According to the present embodiment, the multi-function device 10 transmits a PING packet with the AP 6 as a transmission destination, executes AP confirmation processing (S12 in FIG. 2), and transmits the PING packet with the telephone device 70 as the transmission destination. Then, the CD confirmation process (S14 in FIG. 2) is executed. The multi-function device 10 then obtains a plurality of (ie, 24) confirmation results acquired by a plurality of (ie, 24) AP confirmation processes executed in the past and a plurality of (ie, 24) confirmation results executed in the past. Wireless communication state in order to analyze the wireless communication state between the multi-function device 10 and the call device 70 using a plurality of (ie, 24) confirmation results obtained by the CD confirmation processing Can be analyzed with high accuracy. Therefore, the multi-function device 10 can provide an appropriate analysis result to the user (S50 to S58 in FIG. 3). As a result, the user can appropriately perform the operation for normalizing the wireless communication state between the multi-function device 10 and the calling device 70. For this reason, the calling device 70 can appropriately transmit FAX data received from the outside to the multi-function device 10 via the AP 6, and the multi-function device 10 can appropriately perform printing according to the FAX data. Can be executed.

(Correspondence)
The multi-function device 10 is an example of “first communication device” and “other device”, and the call device 70 is an example of “second communication device” and “one device”. Twenty-four CD confirmation processes and twenty-four AP confirmation processes are examples of “M first confirmation processes” and “N second confirmation processes”, respectively. Further, 12 CD confirmation processes on day 1 and 12 CD confirmation processes on day 2 are examples of “M1 first confirmation process” and “M2 first confirmation process”, respectively. It is. The PING packet transmitted in the CD confirmation process and the PING packet transmitted in the AP confirmation process are examples of “first packet” and “second packet”, respectively. The IP address of the call device 70 is an example of “specific communication identification information”.

  Further, the second predetermined value (for example, 20) used as a reference in the determination of S40 in FIG. 3 is an example of “specific value”. In S42 of FIG. 3, it is determined that the number of “OK” results of the AP confirmation processing is equal to or greater than a third predetermined value (for example, 20). Is included as an example of “when N1 or more second confirmation results indicating that it can be executed” are included ”. Further, in S34 of FIG. 3, it is determined that all the results of the AP confirmation processing are not “NG”, “N2 pieces of N confirmation results indicating that wireless communication can be performed. This is an example of the case where the second confirmation result is included.

(Second embodiment)
As shown in FIG. 6, in the present embodiment, the confirmation unit 40 performs only the CD confirmation process of S14 without performing the AP confirmation process of S12. Therefore, the confirmation result information in FIG. 5 includes only the result of 24 CD confirmation processes.

  In the present embodiment, in the analysis display process of S18 in FIG. 2, the analysis unit 42 executes the following processes. That is, the analysis unit 42 first executes a determination process similar to S38 in FIG. 3, and determines whether or not the result of 24 CD confirmation processes shows a relatively high success rate. When the analysis unit 42 determines that the result of the 24 CD confirmation processes indicates a relatively high success rate (that is, case A in FIG. 5), the analysis unit 42 is connected between the multi-function device 10 and the call device 70. It is determined that the wireless communication state is normal, and the analysis display process is terminated.

  When the analysis unit 42 determines that the result of the 24 CD confirmation processes does not indicate a relatively high success rate (that is, cases B to G in FIG. 5), the determination process similar to S32 in FIG. To determine whether or not all results of the 24 CD confirmation processes are “NG”. When the analysis unit 42 determines that all the results of the 24 CD confirmation processes are “NG” (that is, cases B, F, and G in FIG. 5), the analysis unit 42 is shown in S50 and S52 in FIG. Analysis result information combining the two display examples is generated.

  When the analysis unit 42 determines that all the results of the 24 CD confirmation processes are not “NG” (that is, cases C, D, and E in FIG. 5), the analysis process similar to S36 in FIG. 3 is performed. And whether or not the time period for obtaining “NG” is equivalent between the result of the 12 CD confirmation processes on the first day and the result of the 12 CD confirmation processes on the second day to decide. If the analysis unit 42 determines that the time periods in which “NG” is obtained are equivalent (that is, case C in FIG. 5), the analysis unit 42 generates analysis result information representing the display example shown in S54 in FIG. . On the other hand, when the analysis unit 42 determines that the time periods in which “NG” is obtained are not equivalent (that is, cases D and E in FIG. 5), the two display examples shown in S56 and S58 in FIG. Generate analysis result information combining

  The output unit 44 causes the display unit 14 to display the analysis result information generated as described above. Therefore, the user can appropriately perform the operation for normalizing the wireless communication state between the multi-function device 10 and the call device 70 by looking at the analysis result information. In the present embodiment, the IP address of the call device 70 is an example of “specific communication identification information”.

(Third embodiment)
As shown in FIG. 7, in the present embodiment, the confirmation unit 40 executes only the AP confirmation process of S12 without performing the CD confirmation process of S14. Therefore, the confirmation result information in FIG. 5 includes only the result of 24 AP confirmation processes.

  In the present embodiment, in the analysis display process of S18 in FIG. 2, the analysis unit 42 executes the following processes. That is, the analysis unit 42 first executes a determination process similar to S42 in FIG. 3, and determines whether or not the result of the 24 AP confirmation processes indicates a relatively high success rate. When the analysis unit 42 determines that the result of the 24 AP confirmation processes indicates a relatively high success rate (that is, cases A, B, D, and G in FIG. 5), the analysis unit 42 makes a call with the multi-function device 10. It is determined that the wireless communication state with the device 70 is normal, and the analysis display process is terminated. In this case, there is a possibility of cases B, D, and G, but since further detailed analysis is impossible, the analysis unit 42 determines that the wireless communication state is normal.

  When the analysis unit 42 determines that the result of the 24 AP confirmation processes does not show a relatively high success rate (that is, cases C, E, and F in FIG. 5), it is the same as S34 in FIG. A determination process is executed to determine whether or not all the results of the 24 AP confirmation processes are “NG”. When the analysis unit 42 determines that all the results of the 24 AP confirmation processes are “NG” (that is, case F in FIG. 5), the analysis result representing the display example shown in S50 of FIG. Generate information.

  When the analysis unit 42 determines that all the results of the 24 AP confirmation processes are not “NG” (that is, cases C and E in FIG. 5), the analysis unit 42 is the same as S36 in FIG. 3. Is the time zone in which “NG” is obtained equivalent between the result of the 12 AP confirmation processes on the first day and the result of the 12 AP confirmation processes on the second day after executing the determination process? Judge whether or not. If the analysis unit 42 determines that the time periods in which “NG” is obtained are equivalent (that is, case C in FIG. 5), the analysis unit 42 generates analysis result information representing the display example shown in S54 in FIG. . On the other hand, when the analysis unit 42 determines that the time periods in which “NG” is obtained are not equivalent (that is, case E in FIG. 5), analysis result information representing the display example shown in S <b> 56 in FIG. 3 is displayed. Generate.

  The output unit 44 causes the display unit 14 to display the analysis result information generated as described above. Therefore, the user can appropriately perform the operation for normalizing the wireless communication state between the multi-function device 10 and the call device 70 by looking at the analysis result information. In the present embodiment, the IP address of the AP 6 is an example of “specific communication identification information”, and the 24 AP confirmation processing is an example of “M first confirmation processing”.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. For example, the following modifications are included.

(1) In each of the above embodiments, the multi-function device 10 includes the units 40 to 44. Instead, the telephone device 70 may be configured to include the units 40 to 44. In this case, the call device 70 and the multi-function device 10 are examples of “first communication device” and “second communication device”, respectively. The “first and second communication devices” are not limited to the multi-function device 10 and the call device 70, but other types of communication devices (for example, PCs, servers, PDAs, portable terminals, printers, scanners, telephones, A FAX machine, a copier, etc.).

(2) In each of the embodiments described above, the PING packet is an example of “first and second packets”. Alternatively, the “first and second packets” may be other types of survival confirmation packets (for example, Keep Alive packets).

(3) The confirmation unit 40 may execute the CD confirmation process and / or the AP confirmation process with a cycle shorter than 2 hours or a cycle longer than 2 hours. In other words, the analysis unit 42 may perform the analysis using the result of the CD confirmation process and / or the AP confirmation process less than or more than 24 times. Further, the confirmation unit 40 may execute the CD confirmation process and / or the AP confirmation process irregularly without executing it at a cycle of 2 hours. For example, the confirmation unit 40 matches the time period for executing the first day CD confirmation process and / or the AP confirmation process with the time period for executing the second day CD confirmation process and / or the AP confirmation process. As described above, the CD confirmation process and / or the AP confirmation process may be executed irregularly.

(4) In each of the above-described embodiments, in S50 to S58 of FIG. 3, the analysis unit 42 is a first character string that prompts to turn on the power of the AP (for example, the AP is turned on). (S50)) including the analysis result information is generated. Instead of this, the analysis unit 42 may generate analysis result information including the cause of the communication disabled state (for example, a character string indicating that the AP power is turned off). Analysis result information including both countermeasures may be generated. Generally speaking, the analysis unit 42 may generate analysis result information including at least one of the cause of the incommunicable state and the countermeasure for eliminating the incommunicable state.

(5) In each of the above embodiments, the analysis unit 42 executes each determination process in the order of S30 to S42 in FIG. Instead, the analysis unit 42 may execute each determination process in any order as long as the cases A to G can be distinguished, and other determinations for distinguishing the cases A to G. Processing may be executed.

(6) The first predetermined value used in S38 of FIG. 3, the second predetermined value used in S40 (that is, an example of “specific value”), and the third predetermined value used in S42 of FIG. The value (ie, an example of “N1”) may be a value greater or less than 20. For example, the first predetermined value and the third predetermined value (that is, an example of “N1”) may be values (for example, 12) indicating that the success rate is relatively high (for example, 50% or more). For example, the second predetermined value (that is, an example of “specific value”) may be a value (for example, 12) indicating that the matching rate is relatively high (for example, 50% or more).

(7) In each of the above-described embodiments, the functions of the units 40 to 44 are realized by the CPU 32 of the multi-function device 10 executing processes according to software. Instead, at least a part of the functions of the units 40 to 44 may be realized by hardware such as a logic circuit.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

  2: wireless communication system, 10: multi-function device, 40: confirmation unit, 42: analysis unit, 44: output unit, 70: call device

Claims (10)

  1. A first communication device for executing wireless communication via an access point with a second communication device,
    Transmitting a first packet in which specific communication identification information that is one of communication identification information of the second communication device and communication identification information of the access point is designated as a transmission destination; A confirmation unit for executing a first confirmation process for confirming whether or not a response packet to the packet is received;
    A wireless communication state between the first communication device and the second communication device using M first confirmation results acquired by the first confirmation processing M times (M ≧ 2) The analysis unit generates the analysis result information, and when the wireless communication state is a communication disabled state, the analysis result information includes the cause of the communication disabled state and the communication The analysis unit including at least one of measures for eliminating the impossible state;
    An output unit for outputting the analysis result information to the outside;
    Equipped with a,
    The confirmation unit
    During the first day, execute the first confirmation process M1 times (M1 ≧ 2) to obtain M1 first confirmation results,
    Performing the first confirmation process M2 times (M2 ≧ 2) during a second day different from the first day to obtain M2 first confirmation results;
    The analysis unit analyzes the wireless communication state using the M first confirmation results including the M1 first confirmation results and the M2 first confirmation results,
    The analysis unit obtains a first confirmation result indicating that wireless communication cannot be performed between the M1 first confirmation results and the M2 first confirmation results. The analysis result information relating to the setting of the access point being set to stop the relay function of wireless communication in a predetermined time zone during one day , Communication device.
  2. The specific communication identification information is communication identification information of the second communication device,
    The confirmation unit further transmits a second packet in which communication identification information of the access point is designated as a transmission destination, and confirms whether or not a response packet to the second packet is received. Execute the confirmation process
    The analysis unit uses the M first confirmation results and the N second confirmation results acquired by N times (N ≧ 2) of the second confirmation processing, to perform the wireless communication. The first communication device according to claim 1 which analyzes a communication state.
  3. The confirmation unit executes one time of the first confirmation process and one time of the second confirmation process almost simultaneously,
    The analysis unit is configured to acquire the first and second confirmation processes executed substantially simultaneously between the M first confirmation results and the N second confirmation results. When the matching rate, which is the probability that the second confirmation result matches, is higher than a specific value, the radio wave condition between the first communication device and the access point is unstable. The first communication device according to claim 2, wherein the analysis result information is generated.
  4. The analysis unit has the match rate lower than the specific value, and the N second confirmation results indicate that N1 (N1 ≦ N) or more indicating that wireless communication can be performed. 4. The analysis result information according to claim 3, wherein when the second confirmation result is included, the analysis result information related to an unstable radio wave condition between the second communication device and the access point is generated . 1. Communication device.
  5. The analysis unit indicates that all of the M first confirmation results indicate that wireless communication cannot be performed, and that the N second confirmation results can perform wireless communication. N2 (N2 ≦ N) or more of the second confirmation results indicating that the second communication device is turned off and the access point is set to be wireless communication that set Jode stop a relay function, the generating the analysis result information at least one related, first communication device according to any one of claims 2 to 4.
  6. The analysis unit indicates that all of the M first confirmation results are incapable of performing wireless communication, and all of the N second confirmation results are incapable of performing wireless communication. When indicating that it is possible, at least one of the fact that the power of the access point is turned off and the wireless settings do not match between the first communication device and the access point The first communication device according to claim 2, wherein the related analysis result information is generated.
  7. The first communication device according to claim 1, wherein the specific communication identification information is communication identification information of the access point.
  8. One of the first communication device and the second communication device receives FAX data from the outside, and passes through the access point, the first communication device and the second communication device. A device for transmitting the FAX data to the other device.
    Said other device, from the one apparatus through the access point receives the FAX data, according to the FAX data is an apparatus for performing the printing, any of claims 1 to 7 The 1st communication apparatus of a statement.
  9.   9. The first communication device according to claim 1, wherein the confirmation unit executes the first confirmation process every predetermined time.
  10. A computer program for a first communication device for performing wireless communication via an access point with a second communication device,
    In the computer mounted on the first communication device, the following processes, that is,
    Transmitting a first packet in which specific communication identification information that is one of communication identification information of the second communication device and communication identification information of the access point is designated as a transmission destination; A first confirmation process for confirming whether or not a response packet to the packet is received;
    A wireless communication state between the first communication device and the second communication device using M first confirmation results acquired by the first confirmation processing M times (M ≧ 2) Analysis result information is generated, and when the wireless communication state is a communication impossible state, the analysis result information includes the cause of the communication disabled state and the communication The analysis process including at least one of measures for eliminating the impossible state;
    An output process for outputting the analysis result information to the outside;
    Was executed,
    In the confirmation process,
    During the first day, execute the first confirmation process M1 times (M1 ≧ 2) to obtain M1 first confirmation results,
    Performing the first confirmation process M2 times (M2 ≧ 2) during a second day different from the first day to obtain M2 first confirmation results;
    In the analysis process, the wireless communication state is analyzed using the M first confirmation results including the M1 first confirmation results and the M2 first confirmation results,
    In the analysis process, a time period in which a first confirmation result indicating that wireless communication cannot be performed is obtained between the M1 first confirmation results and the M2 first confirmation results. The analysis result information relating to the setting of the access point being set to stop the relay function of wireless communication in a predetermined time zone during one day,
    Computer program.
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