JP2009159397A - Radio communication system, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communicating system and a program, which reduce the electric power consumption of a radio terminal device upon setting the information of a frequency capable of communicating with a radio relay device, in the radio terminal device. <P>SOLUTION: A setting device 20 stores a radio relay device identifier capable of identifying a radio relay device 40, and frequency information for permitting the radio terminal device 30 to communicate with the radio relay device 40 in a memory unit 22 after correlating them, and determines the strength of radio wave by receiving the radio wave, outputted from the radio relay device 40 together with the radio relay device identifier, then, obtains from the memory unit 22 the frequency information related to the radio relay device identifier included in the radio wave determined as high in the radio wave strength to output the same through the radio wave. On the other hand, the radio terminal device 30 controls so as to effect reception at a frequency stored in the memory unit 33 after detecting the turning-on of the power supply to the device 30 and receives radio wave including the frequency information transmitted from the setting device 20 to store the frequency information into the memory unit 33. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wireless communication system and program comprising a wireless relay device, a wireless terminal device that performs wireless communication via the wireless relay device, and a setting device that sets information for the wireless terminal device to communicate with the wireless relay device About.

  An electronic shelf label system using an electronic shelf label device that is installed on a store's product display shelf and can change the price information of the product in real time is used to transmit information such as a change in the price information of the product by wireless communication. There is. In this electronic shelf label system, for example, price information that is changed according to a time zone is acquired from a product master database stored in a server device, converted into wireless information by a wireless relay device, and a predetermined wireless terminal device Is transmitted to the electronic shelf label device.

  Here, when constructing an electronic shelf label system in which many electronic shelf label devices operate in a wide store area, a plurality of wireless relay devices that relay communication between the server device and the electronic shelf label device will be installed. Each electronic shelf label device is installed nearby and communicates with a wireless relay device with strong radio field strength. However, the frequency (channel) used by each wireless relay device for wireless communication is important in order to avoid radio interference. It is set not to be.

That is, in order for each electronic shelf label device to communicate with the wireless relay device, information such as the frequency used by the wireless relay device that performs communication needs to be set in advance in each electronic shelf label device. In addition, in order to set the frequency information in the wireless terminal device, a technique using a wireless channel setting device is also known (see Patent Document 1), but when such a setting device is not used, an electronic shelf label device is used. A certain wireless terminal device performs passive scan while switching the frequency in order to acquire and set information on the frequency used with the wireless relay device that performs communication, and obtains information on the frequency of the beacon emitted by the wireless relay device. I will investigate.
JP 2003-153337 A

  However, conducting a passive scan while switching the frequency and investigating information such as the frequency of the beacon emitted by the wireless relay device is an electronic shelf that is time consuming, consumes a lot of power, and does not require long-term battery replacement This is very problematic for a wireless terminal device as a billing device.

  The subject of this invention is providing the radio | wireless communications system and program with little power consumption of a radio | wireless terminal apparatus, when setting the information of the frequency which can communicate with a radio | wireless relay apparatus to a radio | wireless terminal apparatus.

  The present invention includes a wireless relay device, a wireless terminal device that performs wireless communication via the wireless relay device, and a setting device that sets information for the wireless terminal device to communicate with the wireless relay device. In the wireless communication system, the setting device associates and stores a wireless relay device identifier capable of identifying the wireless relay device and frequency information for the wireless terminal device to communicate with the wireless relay device; A radio wave output from a radio relay device, which is included in a determination unit that receives a radio wave that includes the radio relay device identifier and determines the radio field intensity, and a radio wave that is determined to have a high radio field intensity by the determination unit Transmitting means for acquiring the frequency information associated with a wireless relay device identifier from the storage means and transmitting the frequency information to the wireless terminal device. .

  Furthermore, a program for causing a computer to function as each means shown in the invention described in claim 1 is provided (invention described in claim 5).

  According to a second aspect of the present invention, in the wireless communication system according to the first aspect, the transmission unit outputs the radio wave including the frequency information.

  According to a third aspect of the present invention, in the wireless communication system according to the first aspect, the setting device further includes control means for controlling so as not to output a radio wave output from the wireless relay device. To do.

  According to a fourth aspect of the present invention, in the wireless communication system according to the first aspect, the wireless terminal device detects frequency information storage means for storing frequency information and that the wireless terminal device is turned on. Later, a radio wave transmitted from the transmission unit of the setting device at a frequency stored in the frequency information storage unit, the radio terminal device receiving a radio wave including frequency information for communicating with the radio relay device Receiving means, wherein the frequency information storage means stores frequency information included in the radio wave received by the receiving means.

  According to the present invention, when setting information on frequencies that can be communicated with the wireless relay device to the wireless terminal device, the wireless terminal device performs passive scan while switching the frequency, such as the frequency of a beacon emitted by the wireless relay device, and the like. Since information is not investigated, it is possible to provide a wireless communication system and a program that consume less power in the wireless terminal device.

An electronic shelf label system as an embodiment of a wireless communication system of the present invention will be described below with reference to the drawings. Hereinafter, the wireless terminal device will be described as an electronic shelf label device.
FIG. 1 shows an overall configuration diagram of an electronic shelf label system according to an embodiment of the present invention.

  The electronic shelf label system includes a server device 10 and a plurality of wireless relay devices 40 connected to a wired network N composed of a LAN (Local Area Network), a WAN (Wide Area Network), and the like, and these wireless relay devices. 40,..., And the setting device 20 and the electronic shelf label device 30 are configured by wireless networks W1, W2, and W3 including wireless PAN (Wireless Personal Area Network) and the like that communicate with each other.

  The server device 10 stores, for example, an electronic shelf label system program and a product master database, and the server device 10 transmits to the electronic shelf label device 30 price information of products that are changed according to the time zone. Take control. The price information transmitted from the server device 10 is converted into wireless information by the wireless relay device 40 and transmitted to the electronic shelf label device 30 via the wireless network W1.

  The setting device 20 is a portable device for setting frequency information and the like for the electronic shelf label device 30 to communicate with the wireless relay device 40 with respect to the electronic shelf label device 30. The user can carry the setting device 20 and move in the store, and the electronic shelf label device 30 can be communicated simply by turning on the electronic shelf label device 30 installed on the store display shelf. Information on the frequency of the wireless relay device 40 is set in the electronic shelf label device 30. The setting device 20 can also be connected to the wired network N by a LAN cable or the like, and can transmit / receive various setting data to / from the server device 10.

FIG. 2 shows a block diagram of an electronic circuit of the wireless relay device 40 in this electronic shelf label system.
In the wireless relay device 40, a memory 42, a storage unit 43, a communication RF unit 44, a notification RF unit 45, and a communication unit 46 are connected to a CPU 41 that performs various controls via a bus line 47.

  The CPU 41 controls information communication with the server device 10, the setting device 20, and the electronic shelf label device 30 according to the wireless relay device control program stored in the storage unit 43. The memory 42 has a work area that develops various programs to be executed and stores data related to these programs.

  The storage unit 43 is configured by an HDD (Hard Disk Drive) or the like provided with a magnetic recording medium, and has an NW information management unit 43A. The NW information management unit 43A stores network information for the wireless relay device 40 to communicate with the electronic shelf label device 30 and the setting device 20.

  The communication RF unit 44 is an RF (Radio Frequency) circuit unit for transmitting and receiving wireless data between the wireless relay device 40 and the electronic shelf label device 30 in the wireless network W1.

  The notification RF unit 45 is an RF (Radio Frequency) circuit unit for transmitting and receiving wireless data between the wireless relay device 40 and the setting device 20 in the wireless network W2.

  The communication unit 46 communicates information with external devices such as the server devices 10 on the connected network N.

FIG. 3 shows a specific example of the NW information management unit 43 </ b> A of the storage unit 43 of the wireless relay device 40.
In the NW information management unit 43A, “anti-shelf label CH (channel)”, “anti-shelf label PANID (Private Area Network IDentification)” which is information for the wireless relay device 40 to communicate with the electronic shelf label device 30 ”,“ Address for counter-tag ”and“ CH for pair setting device ”,“ PAN ID for pair setting device ”, and“ Address for pair setting device ”which are information for the wireless relay device 40 to communicate with the setting device 20 Is stored.

  Specifically, in the example of FIG. 3, the wireless relay device 40 having the identifier “AP1” detects surrounding radio waves while switching the frequency (channel), and the wireless relay device 40 “AP1” is the setting device. 20 determines the PANID and address for communicating with 20, and further determines the channel, PANID, and address for the “AP1” to communicate with the electronic shelf label device 30, and then manages the determined network information in this NW information management This is stored in “CH-tag for counter shelf”, “PAN-label for anti-shelf label”, “address for anti-shelf label”, “PANID for counter-setting device”, and “address for counter-setting device” of the unit 43A. In this embodiment, it is assumed that the frequency (channel) at which the wireless relay device 40 and the setting device 20 communicate with each other over the wireless network W2 is determined in advance between “11” and both devices.

FIG. 4 shows a block diagram of an electronic circuit of the server apparatus 10 in this electronic shelf label system.
In the server apparatus 10, a memory 12, a storage unit 13, a communication unit 14, a display unit 15, and an input unit 16 are connected to a CPU 11 that performs various controls via a bus line 17.

  The CPU 11 controls the control of each circuit unit according to the server device control program stored in the storage unit 13 and, for example, the price information of the commodity that is changed according to the time zone according to the electronic shelf label system program. Control to transmit to 30 is performed. The memory 12 has a work area that develops various programs to be executed and stores data related to these programs.

  The storage unit 13 includes an HDD (Hard Disk Drive) provided with a magnetic recording medium, and stores an NW information management unit 13A. In this NW information management unit 13A, network information for all the wireless relay devices 40 to communicate with the electronic shelf label device 30 and the setting device 20 is stored.

  The communication unit 14 communicates information with an external device such as a wireless relay device 40 on the connected network N. The display unit 15 includes an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), and the like, and performs screen display according to a display control signal from the CPU 11. The input unit 16 includes a keyboard provided with characters, numeric input keys, various function keys, and the like, and outputs an operation signal when each key is pressed by the user to the CPU 11.

  FIG. 5 shows a specific example of the NW information management unit 13 </ b> A of the storage unit 13 of the server device 10. The NW information management unit 13 </ b> A is an area that collectively manages information stored in the NW information management unit 43 </ b> A of the storage unit 43 of each wireless relay device 40 for all wireless relay devices. The network information for all the wireless relay devices is then transmitted to the setting device 20.

FIG. 6 shows a block diagram of an electronic circuit of the setting device 20 in this electronic shelf label system.
In the setting device 20, a storage unit 22, a communication RF unit 23, a notification RF unit 24, a memory 25, an input unit 26, a communication unit 27, and a battery 28 are connected to a CPU 21 that performs various controls via a bus line 29. Then, the CPU 21 controls each circuit unit according to the setting device control program stored in the storage unit 22.

  The storage unit 22 is configured by an HDD (Hard Disk Drive) or the like provided with a magnetic recording medium, and an NW information management unit 22A that manages network information of all the wireless relay devices 40, and the setting device 20 includes the electronic shelf label device 30. A shelf label communication management unit 22B for managing network information for communication with the network.

  The communication RF unit 23 is an RF (Radio Frequency) circuit unit for transmitting and receiving wireless data between the setting device 20 and the wireless relay device 40 in the wireless network W2. An RSSI (Received Signal Strength Indicator) circuit unit for acquiring radio wave intensity data of the radio wave to be transmitted.

  The notification RF unit 24 is an RF (Radio Frequency) circuit unit for transmitting and receiving wireless data between the setting device 20 and the electronic shelf label device 30 in the wireless network W3.

  The memory 25 expands various programs to be executed, and has a work area for storing data and the like related to these programs, and a radio wave intensity storage area 25A. In this radio wave intensity storage area 25A, the result of measuring the radio wave intensity of the radio wave emitted from each wireless relay device 40 is stored.

  The input unit 26 includes a shelf label setting end button 26A. The shelf label setting end button 26A is a button for notifying the wireless relay device 40 of the end after the network setting for the desired electronic shelf label device 30 is completed.

  The communication unit 27 communicates information with external devices such as the server devices 10 on the connected network N. The battery 28 is carried by the user and supplies power to each part of the circuit when moving.

  FIG. 7 shows a specific example of the NW information management unit 22 </ b> A of the storage unit 22 of the setting device 20. In addition to the network information of all the wireless relay devices 40 of the NW information management unit 13A transmitted from the server device 10, the NW information management unit 22A transmits the radio wave emitted by each wireless relay device 40 to the communication RF unit 23 through the wireless network W2. The result of measuring the radio field intensity of each radio wave is stored. In the example of FIG. 7, the radio wave intensity of the radio wave “AP3” emitted from the radio relay device 40 is “150”, the radio wave is strongest, and is suitable as the radio relay device 40 to which the electronic shelf label 30 is connected. It is shown that. The wireless relay device 40 “AP3” indicates that communication with the electronic shelf label device 30 is possible on the channel “19”.

  FIG. 8 shows a specific example of the shelf label communication management unit 22 </ b> B of the storage unit 22 of the setting device 20. The shelf label communication management unit 22B stores network information for communicating with the electronic shelf label device 30. In the example of FIG. 8, the setting device 20 indicates that communication with the electronic shelf label device 30 is performed on the channel “12”.

  FIG. 9 shows a specific example of the radio wave intensity storage area 25 </ b> A of the memory 25 of the setting device 20. The radio field strength storage area 25A is a buffer area for storing the radio field strengths of radio waves received from each wireless relay apparatus 40 in a predetermined period in the order of reception, and includes “pair setting device PANID” and “pair setting device use”. The “address” serves as a wireless relay device identifier that can identify the wireless relay device 40.

FIG. 10 shows a block diagram of an electronic circuit of the electronic shelf label device 30 in this electronic shelf label system.
In the electronic shelf label device 30, a memory 32, a storage unit 33, a communication RF unit 34, a display unit 35, and a battery 36 are connected to a CPU 31 that performs various controls via a bus line 37.

  The CPU 31 controls each circuit unit according to the electronic shelf label device control program stored in the storage unit 33. The memory 32 has a work area for developing various programs to be executed and storing data related to these programs.

  The storage unit 33 is configured by an HDD (Hard Disk Drive) or the like provided with a magnetic recording medium, and the network information of the setting device 20 and the wireless relay device 40 connected to the electronic shelf label device 30 is stored in the connection destination information storage unit 33A. Have.

  The communication RF unit 34 is an RF (Radio Frequency) circuit unit for transmitting and receiving wireless data between the wireless terminal device 30 and the setting device and the wireless relay device 40 in the wireless networks W1 and W3.

  The display unit 35 is configured by an LCD (Liquid Crystal Display) or the like, and performs screen display according to a display control signal from the CPU 31. The battery 36 supplies power to each circuit unit.

FIG. 11 shows a specific example of the connection destination information storage unit 33 </ b> A of the storage unit 33 of the electronic shelf label device 30.
The connection destination information storage unit 33A stores network information of a connection destination to which the electronic shelf label device 30 is connected. The initial connection destination information storage unit 33A (A) stores a channel for receiving radio waves from the setting device 20, and is suitable for connecting the electronic shelf label device 30 from the setting device 20. After receiving the network information of the wireless relay device 40, the network information of the connection destination is updated as in the connection destination information storage unit 33A (B). In the example of FIG. 11A, communication with the setting device 20 is performed on the channel “12”, and the setting device 20 determines that the wireless relay device 40 with strong radio field intensity is “AP3”, and “AP3” is the electronic shelf. Network information for communicating with the tag device 30 is transmitted from the setting device 20 to the electronic shelf label device 30. As shown in the example of FIG. Network information indicating that communication is performed on channel “19” with respect to “AP3” is stored.

  12 to 14 show flowcharts executed in the electronic shelf label system of the present invention. Note that the processing shown in the flowcharts shown below indicates processing operations in which the CPU of each device reads and executes a program stored in the storage unit of each device.

  In step S <b> 1, the server device 10 transmits a transmission request for network information stored in the NW information management unit 43 </ b> A of the storage unit 43 of the wireless relay device 40 to all the wireless relay devices 40. The wireless relay device 40 receives the network transmission request transmitted from the server device 10 (step A1), and executes NW setting processing (step AB).

The NW setting process is shown in FIG.
In this NW setting process, in step AB1, a channel scan is executed, an empty channel, an empty PANID, and an empty address are checked (step AB1), and a PANID and an address for performing setting device 20 communication are determined (step AB1). AB2), the channel, PANID, and address for communicating with the electronic shelf label device 30 are determined (step AB3), and the determined network setting information is stored in the NW information management unit 43A as “anti-shelf label CH”, “anti-shelf” The information is stored in the “PANID for bill”, “address for shelf label”, “PANID for pair setting device”, and “address for pair setting device” (step AB4).

  After the NW setting process (step AB) is executed, the set network information is transmitted to the server device 10 (step A2).

  The server device 10 receives network information from each wireless relay device 40 and stores it in the NW information management unit 13A (step S2). The server device 10 waits for a predetermined time until network information is received from all the wireless relay devices 40 requested in step S1 (step S3). Thereafter, the network information of all the wireless relay devices 40 stored in the NW information management unit 13A is transmitted to the setting device 20 (step S4). Then, the wireless relay device 40 is notified that the network information of all the wireless relay devices 40 has been transmitted to the setting device 20 (step S5).

  In step K1, the setting device 20 performs an empty PANID and an empty address check to set network information for communicating with the electronic shelf label device 30, and selects from the vacant PANID and address. It is set and stored in “PANID for anti-shelf label communication” and “Address for anti-shelf label communication” of the shelf label communication management unit 22B.

  Next, after receiving the network information of all the wireless relay devices 40 transmitted in step S4 of the server device 10 (step K2), the setting device 20 stores it in the NW information management unit 22A of the setting device 20. Then, a passive scan of the beacon transmitted by the wireless relay device 40 is executed using the “pair setting device CH” stored in the NW information management unit 22A (step K3).

  On the other hand, after receiving the notification transmitted in step S5 of the server device 10 (step A3), the wireless relay device 40 is stored in the NW information management unit 43A of the wireless relay device 40 at a predetermined timing (step A4). The “pair setting device CH” transmits a beacon including “pair setting device PANID” and “pair setting device address” (step A5). This beacon transmission is repeated until a setting end notification is received from the setting device 20 (step A6; YES).

  The setting device 20 receives the beacon transmitted by the wireless relay device 40, measures the radio field intensity of the received beacon, and stores and stores the measured radio field intensity in the radio field intensity storage area 25A of the memory 25 (step K4). ). In step KL, an optimum channel determination process is executed. The measurement of the radio wave intensity is performed by performing A / D conversion on the amplitude of the acquired beacon radio wave by the RSSI circuit unit provided in the communication RF unit 23 of the setting device 20.

The optimum channel determination process is shown in FIG.
In step KL1, with respect to the “radio wave intensity” stored in the radio wave intensity storage area 25A of the memory 25 of the setting device 20, the setting device 20 corresponding to the “pair setting device PANID” and the “pair setting device address” matches. Are set and stored in the NW information management unit 22A of the storage unit 22. Then, it determines and acquires the “anti-shelf label CH”, “anti-shelf label PANID”, and “anti-shelf label address” of the wireless relay device 40 having the strongest radio wave intensity stored in the NW information management unit 22A ( Step KL2). Then, the obtained network information of “CH for shelf label”, “PANID for shelf label”, and “address for shelf label” is set in a packet to be transmitted as a beacon (step KL3).

  Next, the packet set in step KL3 is transmitted as a beacon to the wireless terminal device 30 (step K5). The beacon transmission in step K5 is repeated until the shelf label setting end button 26A of the input unit 26 of the setting device 20 is pressed (step K6; NO), from step K3 to step K6.

  When the electronic shelf label device 30 detects that the power is turned on in step T1, the electronic shelf label device 30 performs a passive scan on the channel “CH” stored in the connection destination information storage unit 33A of the electronic shelf label device 30, and the setting device 20 performs step K5. The beacon transmitted at is received (step T3). Then, the network information of “CHF for shelf label”, “PANID for shelf label”, and “address for shelf label” set in the beacon is stored in “CH”, “PANID” “address” of the connection destination information storage unit 33A. (Step T4). Thereafter, in step T5, the wireless relay device 40 is notified of reception synchronization (association) and waits for reception of a beacon from the wireless relay device 40.

  When the pressing of the shelf label setting end button 26A by the user is detected (step K6; YES), the network setting end notification of the electronic shelf label device 30 is sent from the setting device 20 to each wireless relay device 40 via the wireless network W2. (Step K7), each wireless relay device 40 ends the transmission of the beacon in step A5 (step A6; YES).

  Thereafter, the wireless relay device 40 transmits a setting completion notification of the electronic shelf label device 30 to the server device 10 in step A7, and receives the reception synchronization notification (associate) transmitted in step T5 of the electronic shelf label device 30. Receive (step A8).

  Then, when there is information transmission such as a change of display contents from the server device 10 to the electronic shelf label device 30 (step S7; YES), the server device 10 transmits display information (step S8) and wirelessly. The relay device 40 receives the display information transmitted from the server device 10 in step S8 (step A9), and displays the display information using the “anti-shelf CH” stored in the NW information management unit 43A of the wireless relay device 40. Is converted into wireless information and set in a beacon transmission packet, and the beacon in which the display information is set is transmitted to the electronic shelf label device 30 (step A10). Then, the electronic shelf label device 30 receives the beacon transmitted from the wireless relay device 40 through the changed channel (step T6), acquires display information set in the received beacon, and stores the electronic shelf label device. 30 on the display unit 35.

  As described above, according to the present invention, according to the present invention, when setting frequency information communicable with the wireless relay device in the wireless terminal device, the wireless terminal device performs passive scan while switching the frequency. Since information such as the frequency of a beacon emitted by the wireless relay device is not checked, it is possible to provide a wireless communication system and a program that consume less power in the wireless terminal device.

  Note that the processes of the wireless communication system described in the above embodiment, that is, the processes shown in the flowchart of FIG. 12, are all stored in the storage units 13, 22, 33, and 43 as computer-readable programs. In addition, it may be stored in a recording medium such as a memory card (ROM card, RAM card, etc.), semiconductor memory, or the like.

  Further, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

  For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment or some constituent features are combined, the problem described in the column of the problem to be solved by the invention can be solved. When the effect described in the column of effect is obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

1 is an overall configuration diagram of an electronic shelf label system according to an embodiment of the present invention. The block diagram of the electronic circuit of the radio relay apparatus 40. FIG. A specific example of the NW information management unit 43A of the storage unit 43 of the wireless relay device 40. FIG. 3 is a block diagram of an electronic circuit of the server device 10. A specific example of the NW information management unit 13 </ b> A of the storage unit 13 of the server device 10. The block diagram of the electronic circuit of the setting apparatus 20. FIG. A specific example of the NW information management unit 22 </ b> A of the storage unit 22 of the setting device 20. The specific example of the shelf label communication management part 22B of the memory | storage part 22 of the setting apparatus 20 is shown. A specific example of the radio wave intensity storage area 25A of the memory 25 of the setting device 20. The block diagram of the electronic circuit of the electronic shelf label apparatus 30. FIG. A specific example of the connection destination information storage unit 33A of the storage unit 33 of the electronic shelf label device 30. The flowchart performed with the electronic shelf label system which concerns on embodiment of this invention. The flowchart performed by the NW setting process of the radio relay apparatus 40. 5 is a flowchart executed in the optimum channel setting process of the setting device 20.

Explanation of symbols

10 ... Server device 11, 21, 31, 41 ... CPU
12, 25, 32, 42 ... memory 13, 22, 33, 43 ... storage unit 13A, 22A, 43A ... NW information storage unit 14, 27, 46 ... communication unit 15, 35 ... display unit 16, 26 ... input unit 17 , 29, 37, 47 ... bus line 20 ... setting device 22B ... shelf label communication management unit 23, 34, 44 ... communication RF unit 24, 45 ... notification RF unit 25A ... radio wave intensity storage area 26A ... end of shelf label setting Button 28, 36 ... Battery 30 ... Electronic shelf label device 33A ... Connection destination information storage unit 40 ... Wireless relay device N ... Network W1, W2, W3 ... Wireless network

Claims (5)

In a wireless communication system comprising a wireless relay device, a wireless terminal device that performs wireless communication via the wireless relay device, and a setting device that sets information for the wireless terminal device to communicate with the wireless relay device,
The setting device includes:
A storage unit that associates and stores a wireless relay device identifier that can identify the wireless relay device and frequency information for the wireless terminal device to communicate with the wireless relay device;
Determination means for receiving radio waves output from the radio relay device and including the radio relay device identifier to determine radio field intensity;
Transmitting means for acquiring from the storage means and transmitting to the wireless terminal device the frequency information associated with the wireless relay device identifier included in the radio wave determined to have strong radio field intensity by the determining means;
It is characterized by having. The transmission means includes
2. The radio communication system according to claim 1, wherein the radio communication system outputs the radio wave including the frequency information. The setting device further includes:
Control means for controlling not to output radio waves output from the wireless relay device;
The wireless communication system according to claim 1, further comprising: The wireless terminal device
Frequency information storage means for storing frequency information;
A radio wave transmitted from the transmission unit of the setting device at a frequency stored in the frequency information storage unit after detecting that the power of the radio terminal device is turned on, wherein the radio terminal device Receiving means for receiving radio waves including frequency information for communicating with the relay device;
Have
2. The wireless communication system according to claim 1, wherein the frequency information storage means stores frequency information included in the radio wave received by the receiving means. In a wireless communication system comprising a wireless relay device, a wireless terminal device that performs wireless communication via the wireless relay device, and a setting device that sets information for the wireless terminal device to communicate with the wireless relay device,
A computer of the setting device;
A storage unit that associates and stores a wireless relay device identifier capable of identifying the wireless relay device and frequency information for the wireless terminal device to communicate with the wireless relay device;
Determining means for receiving a radio wave output from the wireless relay device and including the wireless relay device identifier to determine a radio field intensity;
Transmitting means for acquiring from the storage means and transmitting to the wireless terminal device the frequency information associated with the wireless relay device identifier included in the radio wave determined to have strong radio field intensity by the determining means;
Program to function as.

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