JP6327004B2 - PROGRAM UPDATE SYSTEM, MANAGEMENT DEVICE, DEVICE, PROGRAM UPDATE METHOD, AND COMPUTER PROGRAM - Google Patents

Description

  The present invention relates to updating a program executed in a management apparatus.

  As a system in which a plurality of wireless LAN access point devices operate, a system for exchanging version information of a control program (firmware) between a plurality of wireless LAN access point devices has been proposed (see Patent Document 1 below). In the system described in Patent Literature 1, a wireless LAN access point device that has been identified as having the latest version of the control program installed on its own based on version information received from another wireless LAN access point device is another wireless LAN access point device. A control program is transmitted to the LAN access point device and a restart is instructed. As a result, all wireless LAN access points can operate with the same version of the control program.

  Unlike a system in which a plurality of wireless LAN access point devices communicate with each other to control the entire system as a system in which a plurality of wireless LAN access point devices operate, one management device has a plurality of wireless LAN access points. There has also been proposed a system that controls the entire system by communicating with each point device. For example, a system has been proposed in which a management device assigns a wireless channel to be used in each wireless LAN access point device and notifies each wireless LAN access point device.

JP 2012-98906 A

  In a system in which one management device controls the entire system by communicating with a plurality of wireless LAN access point devices, various types of devices can exist as wireless LAN access point devices. For this reason, when trying to update the radio channel assignment program executed in the management apparatus, it is not easy to select an optimal version program in the system from a plurality of versions of the program. In addition, for example, in a configuration in which the wireless LAN access point device also serves as a management device (that is, a configuration in which the wireless LAN access point device has a function as a management device), the management device does not have a display unit or an input interface. In this case, it is not easy for the user to update the program. As described above, conventionally, it has been desired that the management device easily updates the radio channel assignment program to an appropriate version of the program.

  Note that the above-described problem is not limited to a wireless channel assignment program, but is a common problem for updating arbitrary programs that are commonly executed for a plurality of wireless LAN access point apparatuses. Furthermore, not only for wireless LAN access point devices, but also for multiple managed devices that can be managed by management devices such as NAS (Network Attached Storage) devices, network devices such as layer 2 switches, and server devices. It was a common problem for program updates. In addition, conventional systems, management devices, and devices to be managed have been desired to be reduced in size, cost, resource saving, ease of manufacture, improved usability, and the like.

SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms.
According to an aspect of the present invention, there is provided a program update system that includes a management device and a plurality of management target devices, and updates an execution program that is commonly executed in the management device with respect to the plurality of management target devices. Provided. In this program update system, each of the plurality of devices to be managed is a candidate program that can be applied as the execution program, and stores candidate programs of the same or different versions from each other; A program acquisition unit that acquires the candidate program from each of the target devices; a program selection unit that selects the execution program from a plurality of acquired candidate programs according to a predetermined rule; and A plurality of managed devices including a plurality of wireless LAN access point devices; and the execution program determines a wireless channel to be used by each wireless LAN access point device. In the program to Ri; each wireless LAN access point device at any time the number of wireless LAN stations that are wirelessly connected to itself is equal to or less than a predetermined number, transmitting the candidate program itself is stored in the management device.

  (1) According to an aspect of the present invention, a program that includes a management device and a plurality of management target devices, and updates an execution program that is commonly executed in the management device with respect to the plurality of management target devices. An update system is provided. In this program update system, each of the plurality of management target devices is a candidate program that can be applied as the execution program, and stores candidate programs of the same or different versions, and the management device stores the plurality of management programs. A program acquisition unit that acquires the candidate program from each of the target devices; a program selection unit that selects the execution program from a plurality of acquired candidate programs according to a predetermined rule; and A program update unit for updating the execution program. According to the program update system of this aspect, since the candidate program stored in each management target device is acquired in the management device and the execution program is selected from the acquired candidate programs according to a predetermined rule, The program can be easily updated to an appropriate version of the program.

  (2) In the program update system of the above aspect, the predetermined rule may include a rule that the program is the latest version among the plurality of candidate programs. According to this form of the program update system, the execution program can be easily updated to the latest version of the program. For this reason, when a new function is to be added to the management apparatus, a program for realizing the function is stored in one of the management target apparatuses as a new version candidate program. Functions can be easily added.

  (3) In the program update system according to the above aspect, the predetermined rule may include a rule that the version of the candidate program is the version having the largest number of candidate programs among the plurality of candidate programs. . According to this form of the program update system, the execution program can be easily updated to a version program having the largest number of candidate programs of the same version. For this reason, the execution program can be selected in accordance with the type of management target apparatus having the highest number of apparatuses that store the same version candidate programs and are likely to be the same type.

  (4) In the program update system of the above aspect, the management device has a version information storage unit that stores version information specified by a user, and the predetermined rule is stored in the version information storage unit. A rule that the version is indicated by the version information may be included. According to this form of the program update system, the version of the program designated by the user can be selected as the execution program.

  (5) The program update system according to the above aspect further includes a communication device capable of communicating with the management device and storing the candidate program, wherein the program acquisition unit includes the management target device and the communication device. The program selection unit selects the execution program according to the predetermined rule from the plurality of candidate programs acquired from the management target device and the communication device. May be. According to the program update system of this aspect, since many candidate programs can be acquired in the management apparatus, a more appropriate version of the program can be selected as an execution program.

  (6) In the program update system according to the above aspect, the plurality of management target devices include a plurality of wireless LAN access point devices, and the execution program determines a wireless channel used by each wireless LAN access point device. It may be a program. According to the program update system of this aspect, the program for determining the wireless channel used by each wireless LAN access point can be easily updated to an appropriate version of the program.

  A plurality of constituent elements of each aspect of the present invention described above are not indispensable, and some or all of the effects described in the present specification are to be solved to solve part or all of the above-described problems. In order to achieve the above, it is possible to appropriately change, delete, replace with another new component, and partially delete the limited contents of some of the plurality of components. In order to solve part or all of the above-described problems or to achieve part or all of the effects described in this specification, technical features included in one embodiment of the present invention described above. A part or all of the technical features included in the other aspects of the present invention described above may be combined to form an independent form of the present invention.

  For example, one embodiment of the present invention can be realized as a system including a management device and a plurality of management target devices. The plurality of devices to be managed can be realized as, for example, a plurality of devices that are candidate programs that can be respectively applied as execution programs and store candidate programs of the same or different versions. The management device can be realized as, for example, a device having a program acquisition unit, a program selection unit, and a program update unit. For example, the program acquisition unit may be configured as a program acquisition unit that acquires candidate programs from a plurality of devices to be managed. For example, the program selection unit may be configured as a program selection unit that selects an execution program from a plurality of acquired candidate programs according to a predetermined rule. For example, the program update unit may be configured as a program update unit that updates the execution program with the selected candidate program. Such a system can be realized as a program update system, for example, but can be realized as a system other than the program update system.

  Further, for example, another embodiment of the present invention can be realized as an apparatus including a program acquisition unit, a program selection unit, and a program update unit. For example, the program acquisition unit may be configured as a program acquisition unit that acquires candidate programs from a plurality of devices to be managed. For example, the program selection unit may be configured as a program selection unit that selects an execution program from a plurality of acquired candidate programs according to a predetermined rule. For example, the program update unit may be configured as a program update unit that updates the execution program with the selected candidate program. An apparatus of this type can be realized as, for example, a management apparatus, but can be realized as an apparatus other than the management apparatus.

  Further, for example, another embodiment of the present invention can be realized as an apparatus including a program storage unit and a program transmission unit. The program storage unit may be configured, for example, as a program storage unit that stores candidate programs that can be applied as execution programs that are commonly executed for a plurality of devices in the management device. For example, the program transmission unit may be configured as a program transmission unit that transmits the candidate program to the management apparatus. An apparatus of this type can be realized, for example, as an apparatus managed by a management apparatus, but can also be realized as another apparatus.

  The present invention can be realized in various forms. For example, it can be realized in the form of a management device, a device managed by the management device, a program update method, a computer program for updating the program, a non-temporary recording medium on which the computer program is recorded, and the like. .

It is explanatory drawing which shows schematic structure of the script update system as one Embodiment of this invention. It is a block diagram which shows the structure of wireless LAN-AP104 shown in FIG. It is a block diagram which shows the structure of the controller apparatus 200 shown in FIG. It is a sequence diagram which shows the procedure of the script update process in 1st Embodiment. It is a sequence diagram which shows the procedure of the radio channel allocation process in 1st Embodiment. It is a sequence diagram which shows the procedure of the script update process in 2nd Embodiment. It is a block diagram which shows the structure of the controller apparatus 200a in 3rd Embodiment. It is a sequence diagram which shows the procedure of the script update process in 3rd Embodiment. It is explanatory drawing which shows schematic structure of the script update system of 4th Embodiment. FIG. 2 is a block diagram illustrating a configuration of a NAS device 604 illustrated in FIG. 1. It is a block diagram which shows the structure of the management apparatus 500 shown in FIG. It is a block diagram which shows the structure of the program update system in 5th Embodiment. It is a block diagram which shows the structure of the management apparatus in 6th Embodiment. It is a block diagram which shows the structure of the apparatus in 7th Embodiment.

A. First embodiment:
A1. System configuration:
FIG. 1 is an explanatory diagram showing a schematic configuration of a script update system as an embodiment of the present invention. The script update system 10 includes four wireless LAN (Local Area Network) access point devices 101, 102, 103, and 104, and a controller device 200. These four wireless LAN access point devices (hereinafter referred to as “wireless LAN-AP”) 101 to 104 and the controller device 200 can communicate with each other via the wired LAN 300.

  In the present embodiment, the four wireless LAN-APs 101 to 104 function as wireless LAN access points called “Thin AP” that do not have a function of determining at least a part of various information related to communication via the wireless LAN. To do. The above-mentioned “various information” means, for example, information such as a wireless channel, SSID (Service Set Identifier), user authentication method, and encryption method used for wireless communication with the wireless LAN station device. The controller device 200 functions as a so-called “wireless LAN controller” that executes the above-described various information settings in an integrated manner with respect to the four wireless LAN-APs 101 to 104. The script update system 10 can easily set various information for each of the wireless LAN-APs 101 to 104 by adopting such a configuration. The controller device 200 functions as a wireless LAN controller and also functions as a wireless LAN access point.

  Here, determination of a wireless channel used in each of the wireless LAN-APs 101 to 104 is realized by executing a predetermined script (hereinafter referred to as “channel determination script”) in the controller device 200. Specifically, information on which wireless communication standard (IEEE802.11ac, IEEE802.11n, etc.) each wireless LAN-AP 101-104 corresponds to, and each wireless LAN-AP 101-104 has a neighboring wireless LAN. Based on information such as which channel the AP is using, a channel determination script is executed in the controller device 200, whereby a wireless channel used in each of the wireless LAN-APs 101 to 104 is determined. As the channel determination script, for example, based on parameters such as the number of wireless LAN-APs using each channel (for example, 36 ch to 48 ch in the 5.2 GHz band (W52)) for each wireless communication standard, congestion of each channel A script that evaluates the degree and determines a channel with a lower degree of congestion is applicable. Here, the “script” is a kind of computer program, means a program that can be executed without depending on the architecture of the CPU, and means a program that can be executed without restarting the controller device 200. To do.

Each of the four wireless LAN-APs 101 to 104 stores a channel determination script in advance. Specifically, as shown in FIG. 1, a channel determination script sc1 is stored in the wireless LAN-AP 101. The wireless LAN-AP 102 stores a channel determination script sc2, the wireless LAN-AP 103 stores a channel determination script sc3, and the wireless LAN-AP 104 stores a channel determination script sc4. These four channel determination scripts sc1 to sc4 are all scripts that can be applied in the controller device 200. Further, as shown in FIG. 1, in the present embodiment, the versions of these four channel determination scripts sc1 to sc4 are different from each other. Specifically, the version of the channel determination script sc1 is 1 (Ver. 1), the version of the channel determination script sc2 is 2 (Ver. 2), and the version of the channel determination script sc3 is 3 (Ver. 3), and the version of the channel determination script sc4 is 4 (Ver. 4). Each channel determination script sc1 to sc4 describes version information. In this embodiment, the timing for storing the channel determination script in each of the wireless LAN-APs 101 to 104 is before the wireless LAN-APs 101 to 104 are shipped. The later the shipping date, the newer version of the channel determination script is stored. That is, among the four wireless LAN-APs 101, 102, 103, and 104, the shipping time of the wireless LAN-AP 101 is the earliest, and the shipping time gradually increases in the order of the wireless LAN-AP 102, the wireless LAN-AP 103, and the wireless LAN-AP 104. slow. The storage timing of the channel determination script is not limited to before shipment, and may be any timing after shipment. For example, the channel determination script may be stored together with the firmware update of the unrelated LAN-APs 101 to 104. Further, for example, the user may download and store from a server device on the Internet at an arbitrary timing.

  As shown in FIG. 1, the controller device 200 stores the same scripts (channel determination scripts sc1 to sc4) as the scripts stored in the wireless LAN-APs 101 to 104 described above. The storage of the four channel determination scripts sc1 to sc4 in the controller device 200 is realized by executing a script update process described later.

  In the script update system 10, the channel determination scripts (hereinafter also referred to as “candidate scripts”) sc1 to sc4 stored in advance in the four wireless LAN-APs 101 to 104 are assigned to the four wireless LAN-APs 101 to 104. A script (hereinafter also referred to as “execution script”) used in the controller device 200 to determine a wireless channel to be selected is selected.

  FIG. 2 is a block diagram showing a configuration of the wireless LAN-AP 104 shown in FIG. The wireless LAN-AP 104 forms a wireless LAN together with the wireless LAN station device 404 shown in FIGS. 1 and 2, and the data received from the wireless LAN station device 404 is transmitted to the other wireless LAN-APs 101 to 103 via the wired LAN 300. Relay to a router device (not shown). The wireless LAN-AP 104 relays data received from other wireless LAN-APs 101 to 103 and a router device (not shown) via the wired LAN 300 to the wireless LAN station device 404. In this embodiment, the wireless LAN station device 404 is a multi-function mobile phone (so-called smart phone). Instead of the multi-function mobile phone, a tablet personal computer or a wireless LAN client is connected to the Internet via a mobile communication network. Any device having a wireless LAN station function, such as a mobile router used for connection, may be used.

  The wireless LAN-AP 104 includes a flash ROM (Read Only Memory) 120, a CPU 110, a wired LAN communication control unit 130, a wireless LAN communication control unit 140, and a RAM (Random Access Memory) 150. Each of these components is connected to the internal bus 160.

  The flash ROM 120 includes a script storage unit 121. The script storage unit 121 stores the above-described channel determination script sc4.

  The CPU 110 functions as a script transmission unit 111, a wireless channel setting unit 112, and a data relay unit 113 by executing a control program stored in the flash ROM 120. The script transmission unit 111 transmits the channel determination script sc4 stored in the flash ROM 120 from the wired LAN communication control unit 130 to the controller device 200. The wireless channel setting unit 112 sets a wireless channel used in wireless LAN communication. The set radio channel is determined by the controller device 200 and notified from the controller device 200, as will be described later. The data relay unit 113 relays the data frame received from the wired LAN communication control unit 130 and the wireless LAN communication control unit 140 according to the destination address.

  The wired LAN communication control unit 130 has an interface for connecting to a wired LAN. As such an interface, for example, various interfaces standardized in IEEE (Institute of Electrical and Electronics Engineers) 802.3 can be adopted. The wireless LAN communication control unit 140 includes a modulator, an amplifier, and an antenna, and performs wireless communication with the wireless LAN station device 404 in accordance with an access control method compliant with, for example, IEEE 802.11a / b / g / n / ac. In such communication, the wireless LAN communication control unit 140 functions as a wireless LAN access point. In the present embodiment, unlike a general wireless LAN communication control unit, the wireless LAN communication control unit 140 is configured to be operable as a wireless LAN station, and other wireless LAN access points existing in the vicinity. Can perform passive scanning.

  In the present embodiment, since the other three wireless LAN-APs 101 to 103 other than the above-described wireless LAN-AP 104 have the same configuration as the above-described wireless LAN-AP 104, detailed description thereof will be omitted. Hereinafter, in the three wireless LAN-APs 101 to 103, the same components as those of the wireless LAN-AP 104 will be described with the same reference numerals as those of the wireless LAN-AP 104 shown in FIG. As shown in FIG. 1, in this embodiment, the wireless LAN-AP 101 forms a wireless LAN together with the wireless LAN station device 401. Similarly, the wireless LAN-AP 102 and the wireless LAN station device 402 form a wireless LAN together with the wireless LAN station device 402 and the wireless LAN station device 403, respectively.

  FIG. 3 is a block diagram showing the configuration of the controller device 200 shown in FIG. The controller device 200 includes a flash ROM 220, a CPU 210, a wired LAN communication control unit 230, a wireless LAN communication control unit 240, and a RAM 250. Each of these components is connected to the internal bus 260.

  The flash ROM 220 includes a script storage unit 221. The script storage unit 221 stores four channel determination scripts sc1 to sc4 by executing a script update process described later. FIG. 3 shows the state of the script storage unit 221 after the script update process is executed.

  The CPU 210 executes a control program stored in the flash ROM 220 to thereby execute a script acquisition unit 211, a script selection unit 212, an access point control unit 213, a channel notification unit 214, a wireless channel setting unit 215, and a data relay unit 216. Function as. The script acquisition unit 211 acquires channel determination scripts sc1 to sc4 transmitted from the wireless LAN-APs 101 to 104. The script selection unit 212 selects an execution script from the channel determination scripts sc1 to sc4 acquired from the wireless LAN-APs 101 to 104. The access point control unit 213 is a functional unit that functions as a wireless LAN controller, and comprehensively controls each of the wireless LAN-APs 101 to 104. Since the wireless channel setting unit 215 is a functional unit similar to the wireless channel setting unit 112 of the wireless LAN-AP 104 described above, detailed description thereof is omitted. Similarly, since the data relay unit 216 is a functional unit similar to the data relay unit 113 of the wireless LAN-AP 104 described above, detailed description thereof is omitted.

  Since the wired LAN communication control unit 230 has the same function as the wired LAN communication control unit 130 of the wireless LAN-AP 104 described above, detailed description thereof is omitted. Further, since the wireless LAN communication control unit 240 has the same function as the wireless LAN communication control unit 140 of the wireless LAN-AP 104 described above, detailed description thereof is omitted. As shown in FIG. 1, the controller device 200 (wireless LAN communication control unit 240) forms a wireless LAN together with the wireless LAN station device 400.

  In the script update system 10 having the above-described configuration, an execution script can be easily updated to an appropriate version script by executing a script update process described later.

  In the first embodiment, the script update system 10 described above corresponds to the program update system in the claims. Further, the controller device 200 is the management device in the claims, the four wireless LAN-APs 101 to 104 are the management target devices in the claims, the execution script is the execution program in the claims, the candidate script is the candidate program in the claims, The script acquisition unit 211 is the program acquisition unit in the claims, the script selection unit 212 is the program selection unit in the claims, the access point control unit 213 is the program update unit in the claims, and the script storage unit 121 is the program storage in the claims. The script transmission unit 111 corresponds to the program transmission unit in the claims.

A2. Script update process:
FIG. 4 is a sequence diagram illustrating a procedure of script update processing according to the first embodiment. In FIG. 4, the left side shows the procedure in each of the wireless LAN-APs 101 to 104, and the right side shows the procedure in the controller device 200. In the script update system 10, when the wireless LAN-APs 101 to 104 and the controller device 200 are activated, a script update process is started.

  In each of the wireless LAN-APs 101 to 104, the script transmission unit 111 waits until a predetermined time (step S105), and when the current time reaches the predetermined time, the candidate script (channel determination script sc1) stored in the script storage unit 121 is reached. -Sc4) is transmitted to the controller device 200 (step S110). In the present embodiment, 3 am is set as the predetermined time in step S105. This is because, in each of the wireless LAN-APs 101 to 104, step S110 is executed at a time when communication with the wireless LAN station devices 401 to 404 is unlikely to be performed. This is to prevent an increase in load and to prevent communication with the wireless LAN station devices 401 to 404 from being affected. In addition, not only 3:00 am but another arbitrary time is good also as predetermined time. The specification of the current time can be realized using, for example, an NTP (Network Time Protocol) server, a GPS (Global Positioning System), or a system clock of the CPU 110.

  In the controller device 200, the script acquisition unit 211 acquires the candidate scripts transmitted from each of the wireless LAN-APs 101 to 104 via the wired LAN communication control unit 230 and stores them in the script storage unit 221 (step S115). For example, if the channel determination script sc1 is transmitted from the wireless LAN-AP 101 at 3 am on the previous day, the channel determination script sc1 is already stored in the script storage unit 221 before step S115 is executed on this day. ing. In such a case, the candidate script (channel determination script sc1) received today is stored in the script storage unit 221 overwriting the existing channel determination script sc1.

  In the controller device 200, the script selection unit 212 selects the latest version of the candidate script received from each of the wireless LAN-APs 101 to 104 in step S115 as a new execution script (step S120). As described above, since the channel determination script sc4 is the latest version of the four channel determination scripts sc1 to sc4, the channel determination script sc4 is executed when the candidate script is acquired from each of the LAN-APs 101 to 104. Selected as a script.

  In the controller device 200, the access point control unit 213 applies (updates) the candidate program selected in step S120 as a new execution program (step S125). Specifically, the access point control unit 213 stores the identifier of the script selected in step S120 as the execution script identifier in the flash ROM 220. Examples of script identifiers include script version information and script file names.

  Here, a case where the other three wireless LAN-APs 101 to 103 other than the wireless LAN-AP 104 are already incorporated in the script update system 10 and the wireless LAN-AP 104 is newly incorporated in the script update system 10 will be considered. When the script update process described above is executed before the wireless LAN-AP 104 is incorporated, the controller device 200 acquires candidate programs from the three wireless LAN-APs 101 to 103, and among these candidate programs, the newest program is acquired. The version (version 3) channel determination script sc3 is selected as the execution script. Thereafter, when the wireless LAN-AP 104 is incorporated into the script update system 10 and the above-described script update process is executed, the channel determination script sc4 is selected as an execution script as described above. Therefore, the execution script of the controller device 200 is upgraded from version 3 to version 4 by incorporating the wireless LAN-AP 104 into the script update system 10. For example, if the three channel determination scripts sc1 to sc3 are not compatible with IEEE 802.11ac and the channel determination script sc4 is compatible with IEEE 802.11ac, each wireless LAN-AP 101 is upgraded by upgrading the execution script described above. When determining the wireless channel in ˜104, a channel having a frequency band of 80 MHz can be determined as a channel to be assigned to any one of the wireless LAN-APs 101-104.

A3. Channel assignment process:
FIG. 5 is a sequence diagram showing a procedure of radio channel assignment processing in the first embodiment. In FIG. 5, the left side shows the procedure in each of the wireless LAN-APs 101 to 104, and the right side shows the procedure in the controller device 200. In the script update system 10, when the wireless LAN-APs 101 to 104 and the controller device 200 are activated, channel assignment processing is started.

  In the controller device 200, the access point control unit 213 waits until a new execution script is applied by the script update process (step S305), and when a new execution script is applied, each access point to each of the wireless LAN-APs 101-104. On the other hand, access point information is requested (step S310). The access point information is a parameter necessary for executing the channel determination script, and means a parameter necessary for assigning channels that have less influence (interference) with each other. Specifically, for example, information indicating wireless communication standards that can be supported by each of the wireless LAN-APs 101 to 104, information indicating which channel is already used for each wireless communication standard, or connection is established. This corresponds to the number of wireless LAN station devices.

  In each of the wireless LAN-APs 101 to 104, when the access point information is requested from the controller device 200, the wireless channel setting unit 112 transmits the access point information to the controller device 200 (step S315). For information indicating which channel is already used for each wireless communication standard described above, for example, the wireless LAN communication control unit 140 operates as a wireless LAN station, and performs a passive scan for each channel. It can be acquired by detecting whether it is used by a nearby wireless LAN-AP. As described above, since the controller device 200 also functions as a wireless LAN access point, the access point information specifying process is also executed in the controller device 200 along with the execution of steps S310 and 315 described above.

  In the controller device 200, when receiving the access point information, the access point control unit 213 specifies the user setting information (step S320). The user setting information means parameters related to radio channel assignment set (designated) by the user, such as a policy for assigning radio channels and a range of assigned channels. For example, in the case where the wireless communication standard corresponds to the 5.2 GHz band (W52), information indicating which channel is to be used as a channel to be assigned from 36 ch to 48 ch is applicable. In addition, you may include the parameter regarding radio | wireless transmission output in user setting information. As such a parameter, for example, information indicating a policy for determining wireless output in each wireless LAN-AP corresponds. The above-mentioned “policy for determining wireless output” is, for example, “output that allows wireless signals to reach a wireless LAN station that is estimated to be the farthest among wireless LAN stations that can be connected with a predetermined strength or higher. Policy ”,“ policy output that is about the same as the average output of neighboring wireless LAN-AP ”, policy policy“ make output as high as possible ”, and the like. The above-described user setting information can be set in the controller device 200 by using, for example, a management terminal (such as a personal computer) (not shown) connected to the wired LAN 300 by the system administrator of the script update system 10. .

  In the controller device 200, the access point control unit 213 executes the execution script based on the access point information received from each of the wireless LAN-APs 101 to 104 and the user setting information specified in step S320, and each wireless LAN-AP 101 ˜104 are determined (step S325). In the controller device 200, the channel notification unit 214 notifies the wireless LAN-APs 101 to 104 of information indicating the wireless channel determined in step S325 (step S330). Note that the above-described determination of the wireless channel (step S325) and notification (step S330) are also executed for the controller device 200. That is, a wireless channel to be used when the controller device 200 operates as a wireless LAN access point is determined, and the channel information is notified to the access point control unit 213 itself.

  In each of the wireless LAN-APs 101 to 104, when receiving the wireless channel information from the controller device 200, the wireless channel setting unit 112 sets a wireless channel to be used in wireless LAN communication based on the wireless channel information (step S335).

  In the script update system 10 according to the first embodiment described above, the controller device 200 acquires candidate scripts for each of the wireless LAN-APs 101 to 104, and the latest version of the acquired candidate scripts is the execution script. Selected as applied. For this reason, since the execution script can be updated to the latest version of the script, it can be easily updated to an appropriate version of the script. For example, for a wireless LAN-AP corresponding to a new wireless communication standard, a script capable of determining a wireless channel according to the standard is stored in advance, so that the wireless LAN-AP is incorporated into the script update system 10. The execution script can be automatically updated to such a script. Therefore, when the system administrator of the script update system 10 newly installs a wireless LAN-AP in the script update system 10, the channel determination script version suitable for the wireless LAN-AP is selected or the version selected is selected. It is not necessary to perform work such as version upgrade. Further, since the channel determination program is configured by a script, the controller device 200 does not have to be restarted when the program is updated. For this reason, it is possible to suppress interruption of communication via the controller device 200 by the wireless LAN station device 400 when updating the script.

B. Second embodiment:
FIG. 6 is a sequence diagram illustrating a procedure of script update processing according to the second embodiment. In FIG. 6, the left side shows the procedure in each of the wireless LAN-APs 101 to 104, and the right side shows the procedure in the controller device 200. The system configuration of the script update system 10 according to the second embodiment is the same as the system configuration of the script update system 10 according to the first embodiment described above. Is omitted.

  The script update process of the second embodiment is different from the script update process of the first embodiment shown in FIG. 4 in that step S120a is executed instead of step S120, and other procedures are the same as the script update process of the first embodiment. Same as processing.

  In the controller device 200, after the completion of step S115, the script selection unit 212 selects a candidate script having the largest number of candidate scripts of the same version as a new execution script (step S120a). As shown in FIG. 1, when the versions of candidate scripts acquired from each wireless LAN-AP are different, the number of candidate scripts for each version is “1” (one). In this case, for example, the latest version of the script may be selected as a new execution script, as in the first embodiment. For example, when the candidate script stored in the wireless LAN-AP 104 is the channel determination script sc2 instead of the channel determination script sc4, the number of candidate scripts for version 2 is “2”, and the other version 1 , 3, more than the number of candidate scripts “1”. In this case, in step S120a, the channel determination script sc2 is determined as an execution script.

  In this way, by selecting the script having the largest number of candidate scripts of the same version as the execution script, the wireless channel assumed in the wireless communication standard corresponding to the version is prioritized and assigned to each wireless LAN-AP. Can be assigned. Specifically, for example, a case is considered where there is only one wireless LAN-AP that supports IEEE 802.11ac, and the other three wireless LAN-APs do not support IEEE 802.11ac. In this case, when a script corresponding to IEEE 802.11ac is selected as an execution script, an 80 MHz band channel is allocated to only one wireless LAN-AP corresponding to IEEE 802.11ac, and the other three wireless LAN- There is a possibility that the number of channels allocated to the AP may be greatly reduced. On the other hand, if three wireless LAN-AP candidate scripts that are not compatible with IEEE 802.11ac (that is, scripts that are not compatible with IEEE 802.11ac) are selected as execution scripts, 1 corresponding to IEEE 802.11ac is selected. Allocation of an 80 MHz band channel to one wireless LAN-AP can be suppressed. As a result, it is possible to suppress the occurrence of bias in the number of radio channels assigned to each wireless LAN-AP and the frequency width.

  The script update system 10 of the second embodiment described above has the same effect as the script update system 10 of the first embodiment. In addition, since the script having the largest number of candidate scripts of the same version is selected as the execution script, it is possible to suppress the occurrence of bias in the number of radio channels and the frequency width allocated to each of the wireless LAN-APs 101 to 104.

C. Third embodiment:
FIG. 7 is a block diagram illustrating a configuration of the controller device 200a according to the third embodiment. The controller device 200a of the third embodiment is different from that of the first embodiment shown in FIG. 3 in that the flash ROM 220 has a version information storage unit 222 and the CPU 210 functions as a user interface (UI) control unit 217. Different from the device 200. Since other configurations in the controller device 200a of the third embodiment are the same as those of the controller device 200 of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

  The user interface control unit 217 generates a menu screen for designating the version of the script selected as the execution script for the user, and outputs the menu screen to the display device. The aforementioned display device means, for example, a display connected to a management terminal (such as a personal computer) that can communicate with the controller device 200a. The controller device 200a may be configured to include a display unit, and the above-described menu screen may be output to the display unit. The version information storage unit 222 stores version information input from the menu screen output by the user interface control unit 217.

  FIG. 8 is a sequence diagram illustrating a procedure of script update processing according to the third embodiment. In FIG. 8, the left side shows the procedure in each of the wireless LAN-APs 101 to 104, and the right side shows the procedure in the controller device 200a. The script update process in the third embodiment is different from the script update process in the first embodiment shown in FIG. 4 in that step S120b is executed instead of step S120, and the other procedure is the script update process in the first embodiment. Same as processing.

  In the controller device 200a, the script selection unit 212, after completion of step S115, of the acquired candidate scripts, the version designated by the user (that is, the version indicated by the version information stored in the version information storage unit 222). Is selected as a new execution script (step S120b). If there is no candidate script of the version specified by the user among the acquired candidate scripts, for example, the latest version of the script is selected as a new execution script, as in the first embodiment. May be.

  Thus, by selecting the candidate script of the version specified by the user as the execution script, the radio channel can be determined using the version of the script specified by the user. In addition, do not specify such a version when it is not desirable to determine the radio channel using a specific version of the script, for example, when the latest version of the script is executed, there is a possibility that a malfunction may occur. Thus, it is possible to avoid such a version of the script being selected as the execution script.

D. Fourth embodiment:
FIG. 9 is an explanatory diagram illustrating a schematic configuration of the script update system according to the fourth embodiment. The script update system 10a of the fourth embodiment is different from the script update system 10 of the first embodiment in that the system configuration is different and the wireless channel assignment process is not executed.

  The script update system 10a includes four NAS (Network Attached Storage) devices 601, 602, 603, and 604, and a management device 500. These four NAS devices 601 to 604 and the management device 500 can communicate with each other via the wired LAN 300a.

  Each NAS device 601 to 604 accumulates data received via the wired LAN 300a, and outputs the accumulated data to the request source via the wired LAN 300a in response to a request. The management device 500 centrally manages the NAS devices 601 to 604. Specifically, the disk capacity (free capacity and used capacity) and access history in each NAS device 601 to 604 are managed in an integrated manner. Further, for example, user accounts for accessing the NAS apparatuses 601 to 604 are managed in an integrated manner.

  Here, the management of user accounts of the NAS apparatuses 601 to 604 is realized by executing a user management script in the management apparatus 500. Specifically, a user management script is executed to manage (add, change, delete, etc.) the attributes of each account (user name, contact information, authentication password, allocated disk capacity, etc.).

  Each of the four NAS devices 601 to 604 stores user management scripts in advance. Specifically, as shown in FIG. 9, the NAS device 601 stores a user management script sc11 whose version is 1.1. The NAS device 602 has a user management script sc12 whose version is 1.2, the NAS device 603 has a user management script sc13 whose version is 1.3, and the NAS device 604 has a version 1.4. Are stored respectively. The storage timing of the user management scripts sc11 to sc14 in the NAS devices 601 to 604 is before shipment of the NAS devices 601 to 604, as in the first embodiment. The storage timing is not limited to before shipment, and may be any timing after shipment. For example, a user management script may be stored together with the firmware update of the NAS devices 601 to 604. Further, for example, the user may download and store from a server device on the Internet at an arbitrary timing.

  As shown in FIG. 9, the management apparatus 500 stores the same scripts (user management scripts sc11 to sc14) as the scripts stored in the NAS apparatuses 601 to 604 described above. Storage of the user management scripts sc11 to sc14 in the management apparatus 500 is realized by executing the script update process described above.

  FIG. 10 is a block diagram showing the configuration of the NAS device 604 shown in FIG. The NAS device 604 includes a flash ROM 620, a CPU 610, a wired LAN communication control unit 630, a RAM 650, and a hard disk 660. Each of these components is connected to an internal bus 690.

  The flash ROM 620 includes a script storage unit 621, and the script storage unit 621 stores the above-described user management script sc14.

  The CPU 610 functions as a script transmission unit 611 and a disk management unit 612 by executing a control program stored in the flash ROM 620. The script transmission unit 611 is a functional unit similar to the script transmission unit 111 included in the wireless LAN-AP 104 of the first embodiment, and thus detailed description thereof is omitted. The disk management unit 612 controls writing and deletion of data on the hard disk 660.

  The wired LAN communication control unit 630 is a functional unit similar to the wired LAN communication control unit 130 of the first embodiment, and thus detailed description thereof is omitted. The hard disk 660 stores data transmitted from each user.

  In the present embodiment, the other three NAS devices 601 to 603 other than the NAS device 604 described above have the same configuration as the NAS device 604 described above, and thus detailed description thereof is omitted.

  FIG. 11 is a block diagram illustrating a configuration of the management apparatus 500 illustrated in FIG. The management device 500 is configured by a notebook personal computer (PC), and includes a hard disk 540, a CPU 510, a ROM 520, a RAM 530, a wired LAN communication control unit 550, a display unit 572, a keyboard 574, which are arranged in a housing 501. And an input / output interface unit 560. All of the other components except for the housing 501, the display unit 572, and the keyboard 574 described above are connected to the internal bus 590.

  The hard disk 540 includes a script storage unit 541. The script storage unit 541 stores four user management scripts sc11 to sc14 by executing the script update process described above. FIG. 11 shows the state of the script storage unit 541 after the script update process is executed. Instead of the hard disk 540, any recording medium capable of storing the four user management scripts sc11 to sc14 may be adopted.

  The CPU 510 functions as a script acquisition unit 511, a script selection unit 512, and a NAS control unit 513 by executing a control program stored in the ROM 520. The script acquisition unit 511 and the script selection unit 512 are functional units similar to the script acquisition unit 211 and the script selection unit 212 of the first embodiment, and thus detailed description thereof is omitted. The NAS control unit 513 centrally manages the disk capacity and access history in each of the NAS devices 601 to 604. Further, the CPU 510 functions as the account management unit 514 by executing the execution script. The account management unit 514 centrally manages user accounts for accessing the NAS apparatuses 601 to 604.

  The wired LAN communication control unit 550 is a functional unit similar to the wired LAN communication control unit 130 of the first embodiment, and thus detailed description thereof is omitted. The display unit 572 can be configured using, for example, a liquid crystal panel. The input / output interface unit 560 controls input / output of data between the display unit 572 or the keyboard 574 and the CPU 510, the RAM 530, and the like.

  In the script update system 10a of the fourth embodiment having the above-described configuration, the same process as the script update process in the first embodiment shown in FIG. 4 is executed. As a result, the latest version of the user management script among the scripts sc11 to sc14 of the NAS devices 601 to 604 is used as an execution script, that is, a user management script used for user account management in the management device 500. sc14 is selected.

  The script update system 10a of the fourth embodiment described above has the same effect as the script update system 10 of the first embodiment. In the fourth embodiment, the management device 500 corresponds to the management device in the claims. The four NAS devices 601 to 604 correspond to the management target devices in the claims.

  As can be understood from the first to fourth embodiments described above, a script that includes a management device and a plurality of management target devices, and updates an execution script that is commonly executed on the management target devices in the management device. An update system can be employed as the program update system of the present invention.

E. Fifth embodiment:
FIG. 12 is a block diagram illustrating a configuration of a program update system according to the fifth embodiment. A program update system 700 according to the fifth embodiment includes a management device 710 and a plurality of management target devices 720, and updates a program executed in common in the management device 710 with respect to the plurality of management target devices 720. It is.

  The plurality of management target devices 720 each store candidate programs that can be applied as execution programs, and have the same or different versions.

  The management device 710 includes a program acquisition unit 711 that acquires candidate programs from each of the plurality of management target devices 720, a program selection unit 712 that selects an execution program from a plurality of acquired candidate programs according to a predetermined rule, And a program updating unit 713 that updates the execution program with the selected candidate program.

  According to the program update system 700 having the above-described configuration, the management apparatus 710 acquires candidate programs stored in each management target apparatus 720, and selects an execution program from the acquired candidate programs according to a predetermined rule. Therefore, the execution program can be easily updated to an appropriate version of the program.

F. Sixth embodiment:
FIG. 13 is a block diagram illustrating a configuration of a management device according to the sixth embodiment. The management device 800 in the sixth embodiment is a device that manages a plurality of management target devices by executing an execution program that is executed in common with respect to the plurality of management target devices.

  The management device 800 is a candidate program that can be applied as an execution program from each of a plurality of management target devices, and a program acquisition unit 811 that acquires candidate programs of the same or different versions, and a plurality of candidate programs acquired Among them, a program selection unit 812 that selects an execution program according to a predetermined rule and a program update unit 813 that updates the execution program with the selected candidate program are provided. According to the management apparatus 800 having the above-described configuration, the management apparatus 800 acquires candidate programs stored in each management target apparatus, and selects an execution program from the acquired candidate programs according to a predetermined rule. The execution program can be easily updated to an appropriate version of the program.

G. Seventh embodiment:
FIG. 14 is a block diagram illustrating a configuration of the apparatus according to the seventh embodiment. An apparatus 900 according to the seventh embodiment is an apparatus managed by a management apparatus, and a program storage unit 901 that stores candidate programs that can be applied as execution programs that are commonly executed with respect to a plurality of apparatuses 900 in the management apparatus. And a program transmission unit 902 that transmits the candidate program to the management apparatus. According to the apparatus 900 having the above-described configuration, the candidate program can be transmitted to the management apparatus, so that the management apparatus 800 can select an execution program from the candidate programs received from each apparatus according to a predetermined rule. Therefore, the execution program can be easily updated to an appropriate version program in the management apparatus.

H. Modification H-1. Modification 1:
In each embodiment, the program to be updated is a script, but is not limited to a script, and may be an arbitrary program (computer program). For example, a program obtained by converting a source code into a machine language code by a compiler or the like and combining it with a necessary library may be used as an update target program.

  In each embodiment, the script to be updated is a radio channel determination script or a user account management script, but the present invention is not limited thereto. For example, a script for management communication executed between the controller device 200 and each of the wireless LAN-APs 101 to 104 may be used. In this example, for example, management communication is conventionally only compatible with IPv4 (Internet Protocol ver. 4), but the script is updated to be compatible with IPv6 (Internet Protocol ver. 6). Can be realized easily. Therefore, the newly shipped wireless LAN-AP is compatible with IPv6, and in an example in which a script compatible with IPv6 is stored as a script for management communication, such wireless LAN-AP is stored. Is incorporated into the script update system 10, the controller device 200 can be adapted to IPv6.

  Further, for example, in the first to third embodiments, a script for determining an SSID for a disaster may be an update target script. An example of this configuration will be described below. In the script update system 10 according to the first embodiment shown in FIG. 1, data is relayed only for the four wireless LAN station devices 401 to 404 in which a predetermined SSID is set in advance in each of the wireless LAN-APs 101 to 104. It has been broken. Here, in the event of a disaster, when communication via the mobile communication network cannot be performed due to a failure of the base station, etc., the existing wireless LAN-APs 101 to 104 are used and the wireless LAN station devices 401 to 404 are limited. There is a need to be able to transmit and receive data by any wireless LAN station device (smartphone or the like). Therefore, in the configuration of the modified example, when a disaster occurs, the SSID set in each of the wireless LAN-APs 101 to 104 is changed and assigned to a predetermined SSID (SSID for disaster), and the SSID is assigned. Is configured so that wireless communication is possible with any wireless LAN station device for which is set. Here, each of the wireless LAN-APs 101 to 104 can be assigned a different SSID depending on the type of mobile communication carrier. Further, for example, the number of wireless LAN-APs to which the same disaster SSID is assigned differs depending on the scale (number of subscribers) of the mobile communication carrier. Therefore, the controller device 200 stores a script for determining a disaster SSID to be assigned to each of the wireless LAN-APs 101 to 104. Even in such a configuration, by executing the script update process described above, the script for determining the disaster SSID can be easily updated to the latest version of the script. In the configuration of the above modification, a test for confirming whether or not communication is possible via each of the wireless LAN-APs 101 to 104 before executing the script (for example, a communication confirmation test with an arbitrary device on the Internet). It is preferable to determine the disaster SSID only for the wireless LAN-AP that is determined to be communicable as a result of the test. If the script for determining the disaster SSID is created on the assumption that each of the wireless LAN-APs 101 to 104 can set a plurality of SSIDs, before executing the script, each wireless LAN It is preferable to obtain the number of SSIDs that can be set from the APs 101 to 104.

  In the script update system 10 of the first embodiment described above, the following application examples are also assumed. Although the hardware for communication using the 60 GHz band is prepared for the three wireless LAN-APs 101 to 103, a script based on the communication using the 60 GHz band is not stored as a candidate script. Thereby, since a communication channel using the 60 GHz band is not set, communication in such a frequency band can be prohibited. Thereafter, when communication using the 60 GHz band is enabled, a product (for example, wireless LAN-AP 104) storing a new script premised on such communication is shipped, and the product is incorporated into the script update system 10. As a result, communication using the 60 GHz band can be realized in each of the wireless LAN-APs 101 to 104.

H-2. Modification 2:
In the first to third embodiments, the controller device 200 acquires candidate scripts from the four wireless LAN-APs 101 to 104 that are devices to be managed. In the fourth embodiment, the management apparatus 500 acquires candidate scripts from the four NAS apparatuses 601 to 604 that are management target apparatuses. Thus, in each embodiment, although the candidate script was acquired from the management object apparatus, this invention is not limited to this. For example, in the script update system 10 of the first embodiment, candidate scripts are stored in advance in the wireless LAN station device 400, and the controller device 200 adds the wireless LAN station devices 400 in addition to the four wireless LAN-APs 101 to 104. Candidate scripts may be obtained from In this configuration, the wireless LAN station device 400 may acquire and store candidate scripts from a server device on the Internet via a mobile communication network (not shown), for example. Further, for example, the controller device 200 may acquire a channel determination script from a server device on the Internet in addition to the four wireless LAN-APs 101 to 104. With these configurations, a newer version of the channel determination script can be applied to the controller device 200. Further, for example, the controller device 200 may acquire a candidate script from a network device (for example, a layer 2 switch or a router) configuring the wired LAN 300 in addition to the four wireless LAN-APs 101 to 104. In this configuration, for example, in the case where the same vendor manufactures a wireless LAN-AP and a network device, the controller device 200 stores the latest version candidate script for each type of device that is newly shipped. , The possibility of applying a newer version of the channel determination script can be increased. According to the configuration enumerated above, the controller devices 200 and 200a can acquire more candidate scripts than the configuration in which candidate scripts are acquired only from the management target device. Can be selected. The wireless LAN station device 400, the server device, and the network device in the above-described example correspond to the communication device in the claims.

H-3. Modification 3:
In each embodiment, the timing at which each of the wireless LAN-APs 101 to 104 transmits the candidate script to the controller device 200 and the timing at which each of the NAS devices 601 to 604 transmits the candidate script to the management device 500 are both predetermined times. However, the present invention is not limited to this. For example, it may be a relative time (after a predetermined time has elapsed from a certain event) based on a certain event, such as 30 minutes after the activation of each of the wireless LAN-APs 101 to 104. Further, for example, in the first to third embodiments, it may be a timing at which each of the wireless LAN-APs 101 to 104 is activated and communication with the controller device 200 is enabled. Further, for example, the controller device 200 manages a predetermined time. When the predetermined time is reached, the controller device 200 requests the wireless LAN-APs 101 to 104 to transmit “candidate scripts”, and each wireless LAN- The APs 101 to 104 may be configured to transmit a candidate script as a response to the above request. In addition, for example, in a configuration in which the controller device 200 requests candidate scripts from all wireless LAN-APs that can periodically communicate, the timing at which such a request is received may be used. Further, for example, in each of the wireless LAN-APs 101 to 104, any timing at which the number of wireless LAN stations connected wirelessly becomes a predetermined number or less may be used. With such a configuration, as in the first embodiment, an increase in the load on the CPU 110 associated with the transmission of the candidate script can be prevented, and the influence on the wireless communication with the wireless LAN station can be suppressed.

H-4. Modification 4:
In each embodiment, the policy for selecting an execution script from candidate scripts is “the latest version” (first and fourth embodiments), “the candidate script having the largest number of candidate scripts of the same version” (first 2 embodiment), “version specified by user” (third embodiment), but the present invention is not limited to these. For example, these may be combined. For example, on the premise that a policy such as “the latest version of candidate scripts with the largest number of candidate scripts of the same version” or a user designation of multiple versions is possible, “of the versions specified by the user, A policy such that “the candidate script has the largest number of candidate scripts of the same version” may be adopted. Further, the policy is not limited to the combination of policies described above, and for example, a policy of “the oldest version of candidate scripts” may be adopted. By adopting such a policy, a script that can be handled by all wireless LAN-APs can be selected as an execution script. Specifically, when the wireless communication standards supported by the wireless LAN-AP are IEEE802.11a, IEEE802.11n, and IEEE802.11ac, any wireless LAN-AP can be used in the 20 MHz band. The 80, 160 MHz band cannot be used with some wireless LAN-APs. For this reason, instead of the latest script corresponding to the 40, 80, 160 MHz band, the oldest version of the script corresponding only to the 20 MHz band is selected, and the channel is assigned to each wireless LAN-AP under the same conditions. Good.

H-5. Modification 5:
In the first to third embodiments, the device functioning as the wireless LAN controller is the controller device 200. However, instead of the controller device 200, any one of the four wireless LAN-APs 101 to 104 is connected to the wireless LAN controller. It may function as a controller. Each of the controller device 200 and the four wireless LAN-APs 101 to 104 has a function as a wireless LAN controller, and is determined as one wireless LAN-AP (hereinafter referred to as “master AP”) determined according to a predetermined rule. ) May operate as a wireless LAN controller. As a predetermined rule for determining the master AP, for example, a rule “It is a wireless LAN-AP activated at the earliest timing” or “a wireless LAN-having the smallest number of connected wireless LAN stations”. Arbitrary rules, such as a rule of “AP”, may be adopted.

H-6. Modification 6:
In the third embodiment, the user specifies the version of the script to be applied as the execution script. However, instead of such specification, the user may specify the version that should be prohibited from being applied as the execution script. . Even in this case, it is equivalent to designating another version other than this version, and a script having a version according to the user's wish can be selected as an execution script. In addition, for example, a condition obtained by performing a logical operation on a plurality of conditions such as a version to be prohibited and the (AND) latest version, a version to be applied, or an (OR) oldest version may be specified.

H-7. Modification 7:
In the first to third embodiments, the start timing of the channel assignment processing is the timing at which the wireless LAN-APs 101 to 104 and the controller device 200 are activated. However, the timing is not limited to this timing and may be any timing. For example, an arbitrary time designated by the user, a timing at which the wireless LAN station device is not connected to each of the wireless LAN-APs 101 to 104, or a timing at which a channel assignment change is required may be used.

H-8. Modification 8:
The configuration of the script update systems 10 and 10a in each embodiment is merely an example, and various modifications can be made. For example, the number of wireless LAN-APs in the script update system 10 and the number of NAS devices in the script update system 10a are four, but the number is not limited to four and may be any number. In the first to third embodiments, the controller device 200 may be a dedicated machine that does not have a wireless LAN access point function but has only a wireless LAN controller function. Further, a wireless LAN may be used instead of the wired LANs 300 and 300a. In the first to third embodiments, the four wireless LAN-APs 101 to 104 have the same configuration, but are common in that at least the script transmission unit 111 and the script storage unit 121 are provided instead. Other configurations may be different from each other. Further, in the controller device 200, a channel determination script may be stored in advance as in the case of the four wireless LAN-APs 101 to 104. In this configuration, it is preferable that a script of a version corresponding to the wireless communication standard supported by the controller device 200 is stored in advance. In the fourth embodiment, the management apparatus 500 is configured by a notebook PC, but instead of the notebook PC, a tablet PC, a desktop PC, an appliance (dedicated function type) server apparatus, Alternatively, a server device or the like existing on the cloud may be used.

  Moreover, in each embodiment, although the management object apparatus was the same kind of apparatus, it may be a mutually different apparatus. For example, the wireless LAN-APs 101 to 104 in the first to third embodiments and the NAS devices 601 to 604 in the fourth embodiment may be mixed. In such a system, for example, the management apparatus 500 according to the fourth embodiment may manage the wireless LAN-APs 101 to 104 in addition to the NAS apparatuses 601 to 604. In such a configuration, the script for management communication described in the first modification is assumed as the script to be updated. In addition, any device that can be managed by a management device is not limited to a wireless LAN-AP or NAS device, and can be a management target device.

H-9. Modification 9:
In each embodiment and modification, a part of the configuration realized by hardware may be replaced with software, and conversely, a part of the configuration realized by software may be replaced with hardware. Also good. In addition, when part or all of the functions of the present invention are realized by software, the software (computer program) can be provided in a form stored in a computer-readable recording medium. In the present invention, the “computer-readable recording medium” is not limited to a portable recording medium such as a flexible disk or a CD-ROM, but an internal storage device in a computer such as various RAMs and ROMs, a hard disk, etc. It also includes an external storage device fixed to the computer. That is, the “computer-readable recording medium” has a broad meaning including an arbitrary recording medium in which data can be fixed instead of temporarily.

  The present invention is not limited to the above-described embodiments and modifications, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments and the modifications corresponding to the technical features in each embodiment described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 10 ... Script update system 10a ... Script update system 101,102,103,104 ... Wireless LAN-AP (wireless LAN access point apparatus)
110 ... CPU
111: Script transmission unit 112 ... Wireless channel setting unit 113 ... Data relay unit 120 ... Flash ROM
121 ... Script storage unit 130 ... Wired LAN communication control unit 140 ... Wireless LAN communication control unit 150 ... RAM
160 ... Internal bus 200 ... Controller device 200a ... Controller device 210 ... CPU
211 ... Script acquisition unit 212 ... Script selection unit 213 ... Access point control unit 214 ... Channel notification unit 215 ... Wireless channel setting unit 216 ... Data relay unit 217 ... User interface control unit 220 ... Flash ROM
221: Script storage unit 222 ... Version information storage unit 230 ... Wired LAN communication control unit 240 ... Wireless LAN communication control unit 250 ... RAM
260 ... Internal bus 300 ... Wired LAN
300a ... Wired LAN
400, 401, 402, 403, 404 ... wireless LAN station device 500 ... management device 501 ... casing 510 ... CPU
511 ... Script acquisition unit 512 ... Script selection unit 513 ... NAS control unit 514 ... Account management unit 520 ... ROM
530 ... RAM
540 ... Hard disk 541 ... Script storage unit 550 ... Wired LAN communication control unit 560 ... Input / output interface unit 572 ... Display unit 574 ... Keyboard 590 ... Internal bus 601 602 603 604 NAS device 610 CPU
611: Script transmission unit 612: Disk management unit 620: Flash ROM
621 ... Script storage unit 630 ... Wired LAN communication control unit 650 ... RAM
660 ... Hard disk 690 ... Internal bus 700 ... Program update system 710 ... Management device 711 ... Program acquisition unit 712 ... Program selection unit 713 ... Program update unit 720 ... Managed device 800 ... Management device 811 ... Program acquisition unit 812 ... Program selection unit 813 ... Program update unit 900 ... Device 901 ... Program storage unit 902 ... Program transmission unit sc1, sc2, sc3, sc4 ... Channel determination script (candidate script)
sc11, sc12, sc13, sc14... User management script (candidate script)

Claims (8)

A program update system comprising: a management device; and a plurality of management target devices, wherein an execution program that is commonly executed in the management device with respect to the plurality of management target devices is updated.
The plurality of management target devices are candidate programs that can be applied as the execution programs, respectively, and store candidate programs of the same or different versions.
The management device
A program acquisition unit that acquires the candidate program from each of the plurality of management target devices;
A program selection unit that selects the execution program from a plurality of the acquired candidate programs according to a predetermined rule;
A program update unit for updating the execution program with the selected candidate program;
I have a,
The plurality of managed devices include a plurality of wireless LAN access point devices,
The execution program is a program for determining a wireless channel used by each wireless LAN access point device,
Each wireless LAN access point device transmits the candidate program stored by itself to the management device at an arbitrary timing when the number of wireless LAN stations wirelessly connected to the wireless LAN access point device is a predetermined number or less. . The program update system according to claim 1,
The program update system, wherein the predetermined rule includes a rule that the program is the latest version among the plurality of candidate programs. In the program update system according to claim 1 or 2,
The program update system, wherein the predetermined rule includes a rule that the version of the candidate program has the largest number of the candidate programs of the same version among the plurality of candidate programs. In the program update system according to any one of claims 1 to 3,
The management device has a version information storage unit that stores version information specified by a user,
The program update system includes a rule that the predetermined rule is a version indicated by version information stored in the version information storage unit. In the program update system according to any one of claims 1 to 4,
further,
A communication device capable of communicating with the management device and storing the candidate program;
The program acquisition unit acquires the candidate programs from the management target device and the communication device,
The program selection system, wherein the program selection unit selects the execution program according to the predetermined rule from among the plurality of candidate programs acquired from the management target device and the communication device. A device managed by a management device,
A program storage unit that stores candidate programs that can be applied as execution programs that are commonly executed with respect to the plurality of devices in the management device;
A program transmission unit for transmitting the candidate program to the management device;
Equipped with a,
The device is a wireless LAN access point device;
The execution program is a program for determining a wireless channel used by the wireless LAN access point device,
The program transmission unit manages the candidate program stored in the program storage unit at an arbitrary timing when the number of wireless LAN stations wirelessly connected to the wireless LAN access point device becomes a predetermined number or less. A device that sends to a device. A program update method for updating an execution program that is commonly executed in a management device with respect to a plurality of management target devices,
In the management device, a candidate program that can be applied as the execution program from each of the plurality of management target devices, and obtaining candidate programs of the same or different versions from each other;
In the management device, a step of selecting the execution program from a plurality of the obtained candidate programs according to a predetermined rule;
Updating the execution program with the selected candidate program;
Equipped with a,
The plurality of managed devices include a plurality of wireless LAN access point devices,
The execution program is a program for determining a wireless channel used by each wireless LAN access point device,
In the wireless LAN access point device, the step of acquiring the candidate program includes storing the candidate program stored by itself at an arbitrary timing when the number of wireless LAN stations wirelessly connected to the wireless LAN access point apparatus becomes a predetermined number or less. A program update method including a step of transmitting to a management device . A computer program for updating an execution program that is commonly executed in a management device with respect to a plurality of management target devices,
In the management device, a candidate program that can be applied as the execution program from each of the plurality of management target devices, and a function of acquiring candidate programs of the same or different versions from each other;
In the management device, a function of selecting the execution program from a plurality of the acquired candidate programs according to a predetermined rule;
A function of updating the execution program with the selected candidate program;
Is realized in a computer included in the management device ,
The plurality of managed devices include a plurality of wireless LAN access point devices,
The execution program is a program for determining a wireless channel used by each wireless LAN access point device,
The function of acquiring the candidate program is to store the candidate program stored by the wireless LAN access point device at an arbitrary timing when the number of wireless LAN stations wirelessly connected to the wireless LAN access point apparatus becomes a predetermined number or less. A program that includes the function to send to the management device .

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