JP2012109833A - Wireless lan access point device, control method for wireless lan access point device and control program therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless LAN access point device capable of recommending an installer to install the wireless LAN access point device in a place with less influence of radio interference.SOLUTION: Radio interference detection means 30 identifies a frequency band of a radio wave received by a radio interference reception antenna 31. A radio interference determination function 51 determines whether the identified frequency band is to be used for a wireless LAN. According to a determination result by the radio interference determination function 51, when the identified frequency band is to be used for the wireless LAN, a radio interference level notification function 61 notifies an installer that a current installation place is in a radio interference state.

Description

  The present invention relates to a wireless LAN access point apparatus, and more particularly to a wireless LAN access point apparatus that notifies a user of a radio wave interference state.

  In recent years, when connecting to a network such as the Internet, wireless communication is often used instead of a wired cable. A wireless LAN access point is obtained by communication between a wireless LAN (Local Area Network) handset built in or externally attached to an information terminal and a wireless LAN base unit (such as an access point) using radio waves in a predetermined frequency band. There is an advantage that the information terminal can be connected to the network without worrying about the cable as long as the radio waves of the device can reach.

  When installing the wireless LAN access point device described above, if there is an electronic device or the like that emits radio waves that affect wireless LAN communication due to the location of the line connected to the WAN (Wide Area Network) side, etc. But it was installed without noticing the electronics. For this reason, there has been a problem that it can be seen for the first time that radio interference is caused by radio waves received from the surroundings when wireless LAN communication is actually used, and the wireless LAN communication quality is installed in a poor place.

  In general, it is known that a microwave oven, a cordless telephone, and the like may cause radio wave interference and affect wireless LAN communication quality. However, other electronic devices and interference radio waves such as illegal radio waves also cause radio wave interference, but this is not well known, and when installing a wireless LAN access point device, In many cases, there is no awareness of the positional relationship or environment. In addition, since radio waves are invisible, it is often not known how much radio wave interference is present at the installation location.

  In addition, as a place to install the wireless LAN access point device, because of the influence on the wireless LAN, the wireless LAN access point device manual is described to be installed away from a personal computer or a cordless telephone, It may not always be installed in an appropriate location depending on the location where there are many lines to be used and the size of the room.

  Moreover, there are many problems such as installation together with a modem, router, HUB, etc. used at the same time as the wireless LAN access point device, and there is a problem that it is difficult to install in an appropriate place. In addition, even when the surrounding electronic device is subjected to radio wave interference, the radio wave is not visible as described above, and often there is no effect unless wireless communication is actually performed.

  Furthermore, since recent wireless LAN access point devices are designed to enable wireless LAN communication at higher speeds and longer distances, they are often sensitive to radio waves and are often susceptible to interference radio waves. . However, in many cases, the installer of the apparatus is not conscious of installing the apparatus in a place where the radio wave condition is good.

  On the other hand, Patent Documents 1 to 5 are the contents of the above-mentioned technical fields that have been specifically known conventionally.

  In the technologies disclosed in Patent Documents 1 to 3, the wireless LAN access point apparatus and the information terminal communicate with each other, and how much interference is affected by the degree of deterioration of communication data on the information terminal. This is a technique for displaying on a display unit.

  In addition, the technique disclosed in Patent Document 4 has a function of outputting a specific signal by radio waves to a microwave oven that is one of the sources of jamming radio waves, and a wireless LAN access point device that has received this signal is nearby. This is a technology that notifies a user that a microwave oven is installed and prompts the user to change the installation location of the wireless LAN access point device.

  Furthermore, the technique disclosed in Patent Document 5 includes a radio base station having a transmission / reception antenna that includes a reception-dedicated antenna separately from the transmission / reception antenna, transmits radio waves from the transmission / reception antenna, and receives the radio waves using the reception-dedicated antenna. In this technology, a base station failure is detected without preparing a dedicated test terminal, and the operation frequency is changed when a failure is detected. This technique is intended to find a failure, and the purpose of this technique is different from that of this proposal.

JP 2002-51051 A JP2007-27932A JP 2004-96595 A JP 2000-224176 A JP 10-276127 A

  However, the techniques disclosed in Patent Documents 1 and 3 actually communicate with other wireless terminals, and determine and notify the level and interference state of jamming radio waves from received data. There is a disadvantage that the state of radio wave interference cannot be confirmed unless the LAN access point apparatus and the terminal are set to be communicable and actually communicate.

  In addition, the technology disclosed in Patent Document 4 has the same function in all devices because there are many electronic devices that generate jamming waves in the frequency band used in the wireless LAN, not limited to microwave ovens. There was an inconvenience that it was difficult to make it.

(Object of invention)
The present invention improves the inconveniences of the related art, and can wirelessly notify the installer of the radio wave interference state at the installation location without actually communicating with the information terminal when installing the wireless LAN access point device. An object of the present invention is to provide a LAN access point device.

  In order to achieve the above object, a wireless LAN access point device of the present invention has a wireless LAN antenna that transmits and receives wireless LAN radio waves and uses a wireless LAN radio wave to communicate with a specific information terminal. In the wireless LAN access point device provided with the LAN communication means, a frequency having a jamming radio wave receiving antenna that receives a jamming radio wave separately from the wireless LAN antenna, and specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna A band identification unit, a jamming radio wave determination unit that determines whether the frequency band identified by the frequency band identification unit is the same as a frequency band used in the communication of the wireless LAN system, and the jamming radio wave determination unit If it is determined that the frequency band is the same as that used for wireless LAN communication, the wireless LA Characterized by comprising a radio interference notification means for notifying that the radio interference state with respect to the installation's access point device.

  The wireless LAN access point apparatus control method according to the present invention includes a wireless LAN antenna that transmits and receives wireless LAN radio waves, and communicates with a specific information terminal using the wireless LAN radio waves. A wireless LAN access point device comprising means for receiving a jamming radio wave receiving antenna for receiving a jamming radio wave separately from the wireless LAN antenna, and identifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna The interference wave determination means determines whether the frequency band specified by the means and the frequency band specified by the frequency band identification means is the same as the frequency band used in the wireless LAN communication, and the interference wave determination means If it is determined that the frequency band is the same as the frequency band used for wireless LAN communication, the wireless LAN access Wherein the interference notification means is to notify that the interference state with respect to the installation's Into device.

  Furthermore, a wireless LAN access point device control program according to the present invention includes a wireless LAN antenna that transmits and receives wireless LAN radio waves and communicates with a specific information terminal using the wireless LAN radio waves. A wireless LAN access point device having communication means, having a jamming radio wave receiving antenna for receiving jamming radio waves separately from the wireless LAN antenna, and specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna A frequency band specifying function, a jamming radio wave judgment function for judging whether or not the frequency band specified by the frequency band pinning means is the same as a frequency band used in the communication of the wireless LAN system, and the radio wave by the jamming radio wave judgment means If it is determined that the frequency band is the same as the frequency band used for LAN communication, the wireless LAN Interference notification function of notifying that the radio interference state with respect to the installation's access point device, and can execute programmed and is characterized in that so as to achieve this to the computer.

  Since the present invention is configured as described above, according to this, the interference radio wave detecting means receives the radio wave including the frequency band used in the wireless LAN communication and specifies the frequency band of the received radio wave. The jamming radio wave determining means determines whether or not the frequency band is a frequency band to be used in the wireless LAN, and if the result of determination by the jamming radio wave determining means is that it is used in the wireless LAN, the wireless LAN access point device is An excellent radio that can notify the installer of the radio interference state of the installation location without communicating with the information terminal by notifying the installation installer that the radio interference is in the radio interference state. A LAN access point device, a wireless LAN access point device control method, and a wireless LAN access point device control program can be provided. That.

1 is a block diagram showing a first embodiment of a wireless LAN access point device 10 according to the present invention. It is the block diagram which showed the content of the jamming electric wave detection means 30 in the block diagram disclosed in FIG. It is the block diagram which showed in detail the content of each block in the block diagram disclosed in FIG. 3 is a flowchart showing an outline of overall operation in the wireless LAN access point device 10 disclosed in FIG. 1. It is a block diagram which shows 2nd Embodiment of the wireless LAN access point apparatus 10 which concerns on this invention. FIG. 6 is a block diagram illustrating details of each block in the block diagram disclosed in FIG. 5. 6 is a flowchart showing an outline of overall operation in the wireless LAN access point device 10 disclosed in FIG. 5. It is the figure which showed an example of the display means 60 of the wireless LAN access point apparatus 10 which concerns on this invention, (A) The figure explaining the display means 60 in the block diagram disclosed in FIG. 1, (B) Disclosed in FIG. It is a figure explaining the display means.

[First Embodiment]
Hereinafter, a first embodiment of a wireless LAN access point apparatus 10 according to the present invention will be described with reference to FIGS. 1 to 3 and FIG. 8 (A).

  First, the basic contents of the wireless LAN access point device 10 of this embodiment will be described with reference to FIG. 1 and FIG.

  A wireless local area network (LAN) access point device 10 includes a wireless LAN antenna 21, wireless LAN communication means 20, communication content processing means 40, jamming radio wave reception antenna 31, jamming radio wave detection means 30, main control means 50, and display means 60. It is composed of

  In the above-described interference radio wave detection means 30, radio waves received by the wireless LAN access point device 10 from the surroundings are received by the interference radio wave reception antenna 31, the radio waves received by the interference radio wave detection means 30 are analyzed, and ambient radio wave information is obtained. It has a function to output.

  The main control means 50 is connected to the jamming radio wave detection means 30 and has a function of receiving ambient radio wave information output from the jamming radio wave detection means 30. Further, the main control means 50 determines from the received ambient radio wave information whether the radio wave is in a frequency band used in the wireless LAN.

  When the above-mentioned radio wave is in a frequency band used in a wireless LAN, a radio wave interference alarm signal is output, and the display means 60 receives the radio wave interference alarm signal, and the wireless LAN access point device 10 receives a radio wave emitted from another electronic device. It has a function of displaying to the outside that it is in a state of causing radio wave interference.

  Further, the main control means 50 has a function of generating a wireless LAN busy signal when it can be determined as a wireless LAN communication signal. Further, the display means 60 receives the above-mentioned wireless LAN busy signal and displays the fact that the wireless LAN communication is being used nearby. An example of a specific configuration of the display unit 60 is a light emitting diode that emits light upon receiving an alarm signal or the like from the main control unit 50 as shown in FIG.

  Next, the configuration of the jamming wave detecting means 30 will be described. FIG. 2 is a block diagram showing an example of the configuration of the jamming wave detection means 30. As shown in FIG. As shown in FIG. 2, the interference wave detection means 30 includes at least a reception interference wave reception antenna 31, a filter 32A, a mixer 32B, a local oscillator 32C, a bandpass filter 32D, a detector 32E, and an A / D converter. 32F, a radio wave detection side communication control unit 33, and the like.

  As a result, the radio wave received by the wireless LAN access point device 10 from the surroundings is received by the jamming radio wave receiving antenna 31 and roughly filtered by the filter 32A. Next, after being converted to an intermediate frequency by the mixer 32B, a necessary signal is passed by the band pass filter 32D, and then the signal is detected by the detector 32E, and the radio wave detection side communication control unit 33 is passed through the A / D converter 32F. Is output. The radio wave detection side communication control unit 33 has a function of determining the radio wave frequency and the signal type based on preset values.

  In this content, the jamming radio wave detection means 30 receives the radio wave received by the wireless LAN access point device 10 from the surroundings by the jamming radio wave receiving antenna 31, analyzes the frequency of the received radio wave, and analyzes the analysis result as the main control means 50. To output.

  Further, the main control means 50 determines whether or not the above-described analysis result is a band used for wireless LAN communication. If the band is a band used for wireless LAN communication, a radio wave interference alarm signal is generated, and the display means 60 In response to a radio wave interference alarm signal from the main control means 50, it is possible to notify the outside that the radio wave condition can cause radio wave interference in the wireless LAN.

  Further, it is determined whether or not it is a wireless LAN signal, and if it is a wireless LAN signal, a wireless LAN busy signal is generated, and the display means 60 receives the wireless LAN busy signal described above, and a user nearby. Can inform the outside that the wireless LAN is being used.

  Next, the above embodiment will be described in more detail.

  First, as shown in FIG. 3, the wireless LAN access point device 10 according to the embodiment includes an information terminal (not shown) connected to a local area network (LAN) and radio waves in a predetermined frequency band that is a wireless LAN system. Wireless LAN communication means 20 that performs communication using the wireless LAN communication means, and interference radio wave detection means 30 that receives the radio wave including the frequency band used by the wireless LAN communication means 20 and analyzes the received radio wave.

  Further, the wireless LAN access point device 10 includes a communication content processing unit 40 that processes communication content transmitted and received by the wireless LAN communication unit 20, a storage unit 70 that stores control information related to the operation of the wireless LAN access point device 10, and this Main control means 50 for controlling the operation of the wireless LAN access point apparatus 10 based on the stored contents of the storage means 70, communication setting input means 80 for accepting communication settings of the wireless LAN access point apparatus 10 from the outside, and wireless LAN communication means Display means 60 for displaying on the outside the radio wave interference state of the jamming radio waves affecting the 20 communications.

  The wireless LAN communication means 20 includes a wireless LAN antenna 21 that transmits and receives radio waves, a transmission unit 24 that converts communication signals into transmission radio waves in a predetermined frequency band and outputs the transmission signals via the wireless LAN antenna 21, and a wireless LAN antenna. A reception unit 23 that converts a received radio wave received via the communication signal into a communication signal, a transmission / reception changeover switch (S / W) unit 22 that switches between a transmission operation and a reception operation performed via the wireless LAN antenna 21, and a reception unit 23, and a wireless LAN side communication control unit 25 that controls operations of the transmission unit 24 and the transmission / reception switching S / W unit 24.

  The interference radio wave detection means 30 described above receives a radio wave including a frequency band used in the wireless LAN system via the interference radio wave reception antenna 31, and analyzes the reception radio wave received by the reception unit 32. And a radio wave detection side communication control unit 33 for transmitting the analyzed information to the main control means 50.

  The receiving unit 32 described above is based on the filter 32A for removing noise from the received radio wave received by the interference wave detecting antenna 31 as described above, and the received radio wave that has passed through the filter 32A is based on the oscillation frequency of the local oscillator 32C. A mixer 32A for converting to an intermediate frequency, a bandpass filter 32D for extracting radio waves in a frequency band that affects a frequency band used in wireless LAN communication, and detecting a communication signal from the radio waves extracted by the bandpass filter 32D And an A / D converter 32F that converts a communication signal detected by the detector 32E into a signal for signal processing.

  Furthermore, the radio wave detection side communication control unit 33 analyzes the signal for signal processing converted by the A / D converter 32F and specifies the frequency band of the jamming radio wave 33A, and the signal described above. It has a communication system specifying function 33B for specifying a communication system from a processing signal, and outputs to the main control means 50 as ambient radio wave information.

  The main control means 50 described above includes an interference radio wave determination function 51 that determines whether or not the radio wave is in a frequency band used in a wireless LAN, based on ambient radio wave information output from the radio wave detection side communication control unit 33, and a wireless And a wireless LAN communication determination function 52 for determining whether or not the communication is a LAN system.

  The display means 60 described above performs wireless LAN communication to the installer of the wireless LAN access point device 10 when the result of determination by the jamming wave determination function 51 is a frequency band used for wireless LAN communication. It has a radio wave interference notification function 61 that detects radio waves that may have an effect and notifies that a radio wave interference state is present by turning on a light emitting diode.

  Accordingly, it is possible to notify the installer whether or not the installation location of the wireless LAN access point device 10 is subjected to radio wave interference that affects wireless LAN communication, and when the radio wave interference notification function 61 is in a lighting state. The installation location can be moved.

  Furthermore, if the result of determination by the wireless LAN communication determination function 52 is a wireless LAN communication signal, the display means 60 is performing wireless LAN communication by a wireless LAN device close to the installer. It has a wireless LAN signal interference state detection function 62 for notifying that a radio wave interference state is present by turning on a light emitting diode.

  Thereby, it is possible to notify the installer whether or not the installation location of the wireless LAN access point device 10 is subject to radio wave interference by wireless LAN communication by another wireless LAN device, and the wireless LAN device detection notification function 62 can When it is lit, it is possible to prompt the user to move the installation location.

[Operation of First Embodiment]
Next, the basic contents of the overall operation of the wireless LAN access point device 10 will be described with reference to FIG.

  First, the jamming radio wave detection means 30 receives radio waves received by the wireless LAN access point device 10 from the surroundings by the jamming radio wave receiving antenna 31, and analyzes the frequency of the received radio waves (FIG. 4: steps S101 to S103 / radio wave analysis step). ), And outputs the analysis result to the main control means 50 (FIG. 4: Step S104 / ambient radio wave information output step).

  Subsequently, the main control means 50 determines whether the frequency band is used in wireless LAN communication (FIG. 4: step S105 / frequency band determination step). If the frequency band is used in wireless LAN communication, a radio wave interference alarm A signal is generated (FIG. 4: Step S106 / Radio interference alarm signal output step).

  Further, the display means 60 receives the radio wave interference alarm signal from the main control means 50 and notifies the outside that the radio wave condition is likely to cause radio wave interference in the wireless LAN (FIG. 4: step S107 / radio wave interference notification process). .

  Further, it is determined whether it is a wireless LAN signal (FIG. 4: step S108 / wireless LAN communication signal determination step). If it is a wireless LAN signal, it informs the outside that the wireless LAN is being used (FIG. 4: Step S109 / Another wireless LAN in-use display step).

  Next, the operation of the first embodiment will be described in more detail.

  First, when the power of the wireless LAN access point device 10 is turned on and the operation of the jamming radio wave detection unit 30 is controlled by the main control unit 50, the jamming radio wave detection unit 30 transmits the jamming radio wave via the jamming radio wave receiving antenna 31. Reception is started (FIG. 3: step S101 / jamming wave reception step).

  The radio wave received by the interference radio wave receiving antenna 31 is removed by the filter 32A, the interference radio wave that has passed through the filter 32A is converted into an intermediate frequency based on the local oscillator 32C, and the band pass filter 32D is wireless. A radio wave in a frequency band that affects a frequency band used in LAN communication is extracted, a communication signal is detected by the detector 32E from the radio wave extracted by the bandpass filter 32D, and the communication signal detected by the detector 32E is signaled. The A / D converter 32F converts the signal for processing.

  Thereby, it is possible to detect a radio wave in a frequency band that causes radio wave interference in wireless LAN communication.

  The radio wave detection side communication control unit 33 that has received the digital signal analyzes the radio wave based on the received signal processing signal and specifies the frequency band of the radio wave (FIG. 3: step S102 / frequency band specifying step). At the same time, the type of radio signal is specified (FIG. 3: step S103 / signal type specifying step), and the specified frequency band and signal type are output to the main control means 50 as ambient radio wave information (FIG. 3: step S104 / Ambient radio wave information output process).

  Thereby, the main control means 50 can determine whether or not the frequency band of the received radio wave is a radio wave in a frequency band that causes radio wave interference in the wireless LAN communication based on the ambient radio wave information.

  The jamming radio wave determination high function 51 of the main control unit 50 determines whether or not the frequency band is used in the wireless LAN based on the ambient radio wave information (FIG. 3: step S105 / frequency band determination process) and uses it in the wireless LAN communication. In the case of the frequency band, a radio wave interference alarm signal indicating that the jamming radio wave has been detected is output to the display unit 60 (FIG. 3: step S106 / radio wave interference alarm signal output step).

  The radio wave interference notification function 61 that has received the radio wave interference alarm signal emits a light emitting diode (LED) to cause the installer who installs the wireless LAN access point device 10 to be in a radio wave interference state and possibly affect wireless LAN communication. It is notified (FIG. 3: step S107 / radio wave interference notification step).

  As a result, the installer who intends to install the wireless LAN access point apparatus 10 can determine whether the installation location of the wireless LAN access point apparatus 10 is suitable for communication, and the radio wave interference notification function 61 is turned on. If it is, it can be urged to change the installation location.

  The wireless LAN communication determination function 52 of the main control means 50 determines whether or not the communication signal is used in wireless LAN communication based on the ambient radio wave information (FIG. 3: step S108 / wireless LAN communication signal determination step). If it is a communication signal used in wireless LAN communication, a signal indicating that another wireless LAN device is in use is output to the display unit 60 (FIG. 3: Step S109 / other wireless LAN communication signal output step).

  The other wireless LAN in-use display function 62 that has received the other wireless LAN device in-use signal turns on the light-emitting diode and displays that another user is using the wireless LAN nearby (FIG. 3). Step S109 / Another wireless LAN in-use display step).

  Here, in the operation in the first embodiment described above, each execution content executed in the above steps may be programmed, and this may be configured to function on a computer. In this case, the program may be recorded on a non-temporary recording medium such as a DVD, a CD, or a flash memory. In this case, the program is read from the recording medium by a computer and executed.

(Effect of 1st Embodiment)
As described above, in the first embodiment, apart from the wireless LAN antenna 21, the interference radio wave reception antenna 31 that receives interference radio waves from the surroundings, and the interference that analyzes the interference radio waves received by the interference radio wave reception antenna 31. By providing the radio wave detection means 30, it is possible to confirm what kind of disturbing radio wave the wireless LAN access point device 10 itself receives without communicating with the wireless LAN slave unit. The installer who intends to install the apparatus 10 can be notified. Also, if the wireless LAN access point device 10 is receiving jamming radio waves or may cause radio wave interference, notify the installer of the fact and encourage installation in a place with better radio wave conditions. Can do. In addition, if there is a problem in communication quality due to radio wave interference during wireless LAN communication, the user is made aware of the cause of communication quality degradation by notifying that radio wave interference has occurred. Can do.

[Second Embodiment]
Next, the basic contents of the second embodiment of the present invention will be described with reference to FIG. Here, the same code | symbol shall be used about the component same as 1st Embodiment mentioned above.

  In the first embodiment disclosed in FIG. 1 to FIG. 3 and FIG. 6 (A), the light emitting diode for notifying that the disturbing radio wave is detected on the display means 60 is turned on when the jamming radio wave is detected. When the jamming radio wave is for wireless LAN communication, the installation means is notified of whether the radio LAN is in use by turning on a light emitting diode notifying that the wireless LAN of the display means 60 is being used nearby. The case of doing was illustrated.

  However, it is often difficult for the installer to determine how much interference radio waves are affected by the notification when the light emitting diode is turned on or off.

  On the other hand, in the second embodiment, as shown in FIG. 6B, it is used for the function of displaying the received radio wave intensity in steps and the wireless LAN communication by other wireless LAN devices. And a function of displaying a frequency band channel.

  Both the wireless LAN communication unit 20 and the jamming wave detection unit 30 shown in FIG. 5 are basically composed of parts having equivalent functions. Since the jamming radio wave detection means 30 only receives radio waves and does not carry out transmission, the transmission unit 24 and the transmission / reception switching S / W unit 22 which are circuit parts for transmission are omitted.

  By using a component having a function equivalent to that of the wireless LAN communication unit 20 in the interference radio wave detection unit 30 using the configuration as described above, the wireless LAN access point device 10 can receive wireless LAN from the surroundings. Sensitivity and analysis system equivalent to those of the communication means 20 can be provided.

  If there is a user who is already using wireless LAN communication in the vicinity, the wireless LAN channel used only by the jamming wave detecting means 30 is determined without operating the wireless LAN communication means 20, and this channel is determined. Can be notified.

  Further, when there is a possibility of radio wave interference, the intensity of radio waves from the surroundings is analyzed, and radio wave interference level signals are generated in several stages. The display means 60 displays the radio wave interference level in steps according to the radio wave interference level signal divided into several stages.

  By referring to the radio wave interference level, it is possible to prompt the user to install the wireless LAN access point device 10 in a place where the radio wave state is a little better. FIG. 6B is an example of the display unit 60, and is a diagram displaying the radio wave interference level and the radio wave state such as the channel in use of the wireless LAN.

  In the above contents, the jamming radio wave detection means 30 receives radio waves received from the surroundings by the wireless LAN access point device 10, performs frequency analysis of the received radio waves, and outputs an analysis result.

  Further, the main control means 50 determines whether or not the band is used for the wireless LAN signal from the analysis result described above, and then performs radio wave intensity analysis. Then, several levels of radio wave interference level signals are output according to the radio wave intensity.

  Further, it is determined whether or not it is a wireless LAN signal. If it is a wireless LAN signal, the channel of the wireless LAN being used is confirmed. By outputting the confirmed channel, it is possible to notify the channel in use.

  Next, the second embodiment will be described in more detail.

  The radio wave detection side communication control unit 33 has an electric field intensity specifying function 33C for specifying the electric field intensity, and also has a function of giving this electric field intensity information to the above-mentioned ambient radio wave information and outputting it to the main control means 50. .

  The main control unit 50 includes a channel specifying function 54 for specifying a frequency band channel of this frequency band based on the frequency band information included in the ambient radio wave information, and a plurality of radio waves previously classified based on the electric field strength information. It has a radio wave interference level specifying function 53 for specifying which of the interference levels it belongs to.

  Further, the display means 60 includes an in-use channel notification function 64 for notifying the installer of the channel specified by the channel specifying function 54 described above with a two-digit 7-segment display shown in FIG. The radio wave interference level for lighting the corresponding light emitting diode among the light emitting diodes classified into five levels of Excellent, Very Good, Good, Average, Poor shown in FIG. And a notification function 63.

  As a result, the installer can check the frequency band channel used in other wireless LAN communication on which the in-use channel notification function 64 is displayed, and use a frequency band channel other than this frequency band channel. The main control means 50 can be commanded through the communication setting input means 80 to perform wireless LAN communication. As a result, the influence of other wireless LAN communications can be reduced.

Further, by referring to the radio wave interference level notification function 63, the installer can urge the installation of the wireless LAN access point device 10 to a place where it is difficult to receive the radio wave interference.
About another structure, it is the same as 1st Embodiment mentioned above.

[Operation of Second Embodiment]

  Next, basic contents of the operation of the wireless LAN access point device 10 in the second embodiment will be described with reference to FIGS.

  First, the interference radio wave detection means 30 receives radio waves received from the surroundings, performs frequency analysis of radio waves (FIG. 7: steps S201 to S204 / reception radio wave analysis step), and outputs an analysis result (FIG. 7: step S205). / Ambient radio wave information output process).

  Subsequently, the main control unit 50 determines whether the frequency band is used for wireless LAN communication from the above analysis result (FIG. 7: step S206 / frequency band determination step), and then performs radio wave intensity analysis (FIG. 7). 7: Step S207 / electric field strength analysis step).

  Then, several levels of radio interference state level signals are output according to the radio wave intensity. Upon receiving the radio wave interference state level signal, the radio wave interference level is notified by the display means 60 (FIG. 7: step S208 / radio wave interference level notification step).

  Next, it is determined whether it is a wireless LAN signal (FIG. 7: step S209 / wireless LAN communication signal determining step). In the case of a wireless LAN signal, the wireless LAN channel being used is confirmed and the display means 60 uses the channel to be used. (FIG. 7: Step S210 / Frequency band channel signal output step) to notify the in-use channel (FIG. 7: Step S211 / In-use channel notification step).

  Next, the operation of the second embodiment will be described in more detail.

  First, when the power of the wireless LAN access point device 10 is turned on and the jamming radio wave detection means 30 is controlled by the main control means 50, the jamming radio wave detection means 30 starts receiving radio waves with the jamming radio wave receiving antenna 31. (FIG. 5: Step S201 / jamming wave reception step).

  The radio wave received by the interference radio wave receiving antenna 31 is removed by the filter 32A, the interference radio wave that has passed through the filter 32A is converted into an intermediate frequency based on the local oscillator 32C, and the band pass filter 32D is wireless. A radio wave in a frequency band that affects the frequency band used for LAN communication is extracted, a communication signal is detected by the detector 32E from the radio wave extracted by the bandpass filter 32D, and the communication signal detected by the detector 32E is digitally converted. The A / D converter 32F converts the signal.

  Subsequently, the frequency specifying function 33A specifies the frequency band of the radio wave (FIG. 5: step S202 / frequency band specifying step), and the communication signal specifying function 33B specifies the signal type (FIG. 5: step S203 / signal type specifying). Process).

  Further, the electric field strength specifying function 33C specifies the electric field strength (FIG. 5: step S204 / electric field strength specifying step), and outputs the above-mentioned frequency band, signal type and electric field strength to the main control means 50 as ambient radio wave information ( FIG. 5: Step S205 / ambient radio wave information output step).

  The main control means 50 analyzes the acquired ambient radio wave information, and the jamming radio wave determination function 51 determines whether or not the frequency band of the ambient radio wave information is used in a wireless LAN (FIG. 5: Step S206 / frequency band determination) Process).

  Subsequently, when it is determined by the jamming radio wave determination function 51 that the frequency band is used in the wireless LAN, the radio wave interference level specifying function 54 determines that the electric field strength of the surrounding radio wave information is the radio wave interference level classified in advance into a plurality of levels. The display unit 60 is controlled so as to identify which one of them belongs (FIG. 5: step S207 / electric field strength analysis) and to light up the light emitting diode corresponding to the specified radio wave interference level.

  The radio wave interference level notification function 63 turns on the light emitting diode of the radio wave interference level specified by the radio wave interference level specification function 54 and notifies the installer of the radio wave interference level (FIG. 5: step S208 / radio wave interference level notification step).

  As a result, the installer can know how much the wireless LAN communication is affected by the interference radio waves from other electronic devices at the place where the wireless LAN access point device 10 is installed.

  Further, when the installation location of the wireless LAN access point device 10 is changed, by referring to the radio wave interference level notification function 63 to the installer, a location where the radio wave interference level is better (Excellent in FIG. 6B) is obtained. Can be promoted.

  Subsequently, the wireless LAN communication determination function 52 determines whether or not the type of communication signal of the ambient radio wave information is used for wireless LAN communication (FIG. 5: step S209 / wireless LAN communication signal determination step).

  When the wireless LAN communication determination function 52 determines that the communication signal is used in wireless LAN communication, the channel specifying function 53 specifies the frequency band channel of the surrounding radio wave information frequency band and displays the specified frequency band channel. The display means 60 is controlled to do so (FIG. 5: Step S210 / frequency band channel signal output step).

  The in-use channel notification function 64 notifies the number of channels specified by the channel specification function 53 by a 2-digit 7-segment display as shown in FIG. 6B (FIG. 5: step S211 / in-use channel notification step). .

  This can prompt the installer to select a frequency band channel other than the frequency band channels already used by other wireless LAN devices.

  Here, the receiving unit 32 of the jamming wave detecting means 30 is equivalent to the receiving unit 23 of the wireless LAN communication means 20, and the jamming radio wave receiving antenna 31 is equivalent to the wireless LAN antenna 21. Thus, the reception sensitivity of the jamming radio wave can be made equal to that of the wireless LAN communication.

  Further, in the operation in the above-described second embodiment, each execution content executed in the above steps may be programmed and the computer may function. In this case, the program may be recorded on a non-temporary recording medium such as a DVD, a CD, or a flash memory. In this case, the program is read from the recording medium by a computer and executed.

(Effect of 2nd Embodiment)
In this way, the electric field strength specifying function 33C specifies the electric field strength, the radio wave interference level specifying function 53 specifies the radio wave interference level corresponding to the specified electric field strength, and the radio wave interference level notification function 63 specifies the specified radio wave interference level. Notify the installer. Thereby, the installer can confirm the degree of the radio wave interference level, and can prompt the user to install the wireless LAN access point device 10 in a place where the radio wave interference level is lower. Further, the frequency band channel determination function 54 specifies the frequency band channel based on the frequency band specified by the frequency band specifying function 33A, and notifies the installer of the specified frequency band channel by the busy channel notification function 64. This allows the installer to check the frequency band channel used in wireless LAN communication by other wireless LAN devices, and the frequency notified to the in-use channel notification function 64 when performing wireless LAN communication. The installer can be prompted to communicate using a frequency band channel other than the band channel. About another structure and its effect, it is the same as 1st Embodiment mentioned above.

[Other Embodiments]
As described above, in the first embodiment and the second embodiment, the interfering radio wave is received by the interfering radio wave receiving antenna 31. On the other hand, a distributor for distributing received radio waves is provided between the transmission / reception switching S / W unit 22 and the receiving unit 23 of the wireless LAN communication means 20, and the radio waves received by the wireless LAN antenna 21 are obstructed via the distributor. By being configured to transmit to the reception unit 32 of the radio wave detection means 30, the radio LAN antenna 21 can receive the jamming radio wave and detect the radio wave interference state. With this configuration, the interference radio wave receiving antenna 31 becomes unnecessary, and the manufacturing cost of the wireless LAN access point device can be reduced. Even in this case, it is possible to obtain a wireless LAN access point apparatus having the same effects as those of the first embodiment and the second embodiment described above.

About the embodiment mentioned above, if the summary of the novel technical content is put together, it will become as the following additional remarks.
In addition, although one part or all part of the said embodiment is put together as follows as a novel technique, this invention is not necessarily limited to this.

(Supplementary note 1) In a wireless LAN access point device having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves,
A frequency band specifying means for specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna, having a jamming radio wave receiving antenna that receives the jamming radio wave separately from the wireless LAN antenna,
A disturbing radio wave determining means for determining whether or not the frequency band specified by the frequency band specifying means is the same as a frequency band used in the wireless LAN communication;
A radio wave for notifying the installer of the wireless LAN access point device that the radio wave is in a radio wave interference state when the jamming radio wave determining unit determines that the frequency band is the same as the frequency band used in the wireless LAN communication. A wireless LAN access point device comprising interference notification means.

(Appendix 2) In the wireless LAN access point device according to Appendix 1,
The frequency specifying means is provided with a communication method specifying means for converting a jamming radio wave received by the jamming radio wave receiving antenna into a communication signal for signal processing and specifying the type of communication scheme based on the communication signal,
The jamming radio wave determination means has a wireless LAN communication determination function for determining whether or not the type of communication system specified by the communication system specifying means is a wireless LAN system;
When the communication signal is determined to be a wireless LAN method by the wireless LAN communication determination function, the radio wave interference notification means indicates that the installer is in a radio wave interference state by communication with another wireless LAN device. A wireless LAN access point device having a function of detecting a wireless LAN signal interference state to be notified.

(Supplementary note 3) In the wireless LAN access point device according to supplementary note 2,
The interfering radio wave determining means is a frequency channel specifying function for specifying a frequency channel based on the frequency band specified by the frequency specifying means when the wireless LAN communication determining function determines that the type of the interfering radio wave is a wireless LAN system. And having
2. The wireless LAN access point apparatus according to claim 1, wherein the radio wave interference notification means has a busy channel notification function for notifying the installer that the specified frequency channel has already been used by another wireless LAN device.

(Supplementary note 4) In the wireless LAN access point device according to supplementary note 1,
In addition to the frequency specifying means, an electric field strength specifying means for specifying the electric field strength of the received jamming radio wave is provided,
The interference radio wave determining means has a radio wave interference level specifying function for specifying which one of the radio wave interference levels classified in advance for each of the specified field strengths is classified into a plurality of field interference levels,
The wireless LAN access point device, wherein the radio wave interference notification means has a radio wave interference level notification function for notifying the installer of the specified radio wave interference level.

(Supplementary Note 5) A wireless LAN access point apparatus having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves. And
In addition to the interfering radio wave receiving antenna for receiving the interfering radio wave separately from the wireless LAN antenna, the frequency band specifying means specifies the frequency band of the interfering radio wave received by the interfering radio wave receiving antenna,
The interference radio wave determining means determines whether or not the frequency band specified by the frequency band specifying means is the same as the frequency band used in the wireless LAN communication.
When the interference radio wave determining means determines that the frequency band is the same as the frequency band used in the wireless LAN communication, the radio wave interference notification is made to the installer of the wireless LAN access point device. A wireless LAN access point apparatus control method, characterized in that the means is notified.

(Supplementary Note 6) A wireless LAN access point apparatus having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves. And
A frequency band specifying function for specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna, having a jamming radio wave receiving antenna that receives the jamming radio wave separately from the wireless LAN antenna,
An interference radio wave determination function for determining whether or not the frequency band specified by the frequency band specifying means is the same as a frequency band used in the wireless LAN communication;
A radio wave for notifying the installer of the wireless LAN access point device that the radio wave is in a radio wave interference state when the jamming radio wave determining unit determines that the frequency band is the same as the frequency band used in the wireless LAN communication. Interference notification function,
A program for controlling a wireless LAN access point device, wherein the program is implemented so that it can be executed by a computer.

  The present invention can be applied to a wireless LAN device that performs communication using a wireless LAN.

DESCRIPTION OF SYMBOLS 10 Wireless LAN access point apparatus 20 Wireless LAN communication means 21 Wireless LAN antenna 30 Interference radio wave detection means 31 Interference radio wave reception antenna 33A Frequency band specific function 33B Communication signal conversion function 33C Electric field intensity specific function 50 Main control means 51 Interference radio wave determination function 52 Wireless LAN communication determination function 53 Channel identification function 54 Radio wave interference level identification function 60 Display unit 61 Radio wave interference notification function 62 Wireless LAN signal interference state detection function 63 Radio wave interference level notification function 64 In-use channel notification function

Claims (6)

In a wireless LAN access point device having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves,
A frequency band specifying means for specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna, having a jamming radio wave receiving antenna that receives the jamming radio wave separately from the wireless LAN antenna,
A disturbing radio wave determining means for determining whether or not the frequency band specified by the frequency band specifying means is the same as a frequency band used in the wireless LAN communication;
A radio wave for notifying the installer of the wireless LAN access point device that the radio wave is in a radio wave interference state when the jamming radio wave determining unit determines that the frequency band is the same as the frequency band used in the wireless LAN communication. A wireless LAN access point device comprising interference notification means. The wireless LAN access point device according to claim 1,
The frequency specifying means is provided with a communication method specifying means for converting a jamming radio wave received by the jamming radio wave receiving antenna into a communication signal for signal processing and specifying the type of communication scheme based on the communication signal,
The jamming radio wave determination means has a wireless LAN communication determination function for determining whether or not the type of communication system specified by the communication system specifying means is a wireless LAN system;
When the communication signal is determined to be a wireless LAN method by the wireless LAN communication determination function, the radio wave interference notification means indicates that the installer is in a radio wave interference state by communication with another wireless LAN device. A wireless LAN access point device having a function of detecting a wireless LAN signal interference state to be notified. The wireless LAN access point device according to claim 2,
The interfering radio wave determining means is a frequency channel specifying function for specifying a frequency channel based on the frequency band specified by the frequency specifying means when the wireless LAN communication determining function determines that the type of the interfering radio wave is a wireless LAN system. And having
2. The wireless LAN access point apparatus according to claim 1, wherein the radio wave interference notification means has a busy channel notification function for notifying the installer that the specified frequency channel has already been used by another wireless LAN device. The wireless LAN access point device according to claim 1,
In addition to the frequency specifying means, an electric field strength specifying means for specifying the electric field strength of the received jamming radio wave is provided,
The interference radio wave determining means has a radio wave interference level specifying function for specifying which one of the radio wave interference levels classified in advance for each of the specified field strengths is classified into a plurality of field interference levels,
The wireless LAN access point device, wherein the radio wave interference notification means has a radio wave interference level notification function for notifying the installer of the specified radio wave interference level. A wireless LAN access point device having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves,
In addition to the interfering radio wave receiving antenna for receiving the interfering radio wave separately from the wireless LAN antenna, the frequency band specifying means specifies the frequency band of the interfering radio wave received by the interfering radio wave receiving antenna,
The interference radio wave determining means determines whether the frequency band specified by the frequency band specifying means is the same as the frequency band used in the communication of the wireless LAN system,
When the interference radio wave determining means determines that the frequency band is the same as the frequency band used in the wireless LAN communication, the radio wave interference notification is made to the installer of the wireless LAN access point device. A wireless LAN access point apparatus control method, characterized in that the means is notified. A wireless LAN access point device having a wireless LAN antenna for transmitting and receiving wireless LAN radio waves and having wireless LAN communication means for communicating with a specific information terminal using the wireless LAN radio waves,
A frequency band specifying function for specifying a frequency band of the jamming radio wave received by the jamming radio wave receiving antenna, having a jamming radio wave receiving antenna that receives the jamming radio wave separately from the wireless LAN antenna,
An interference radio wave determination function for determining whether or not the frequency band specified by the frequency band specifying means is the same as a frequency band used in the wireless LAN communication;
A radio wave for notifying the installer of the wireless LAN access point device that the radio wave is in a radio wave interference state when the jamming radio wave determining unit determines that the frequency band is the same as the frequency band used in the wireless LAN communication. Interference notification function,
A program for controlling a wireless LAN access point device, wherein the program is implemented so that it can be executed by a computer.

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