JP2003283509A - Indoor/outdoor deciding device and radio communication terminal provided with the same - Google Patents

Indoor/outdoor deciding device and radio communication terminal provided with the same

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JP2003283509A
JP2003283509A JP2002086512A JP2002086512A JP2003283509A JP 2003283509 A JP2003283509 A JP 2003283509A JP 2002086512 A JP2002086512 A JP 2002086512A JP 2002086512 A JP2002086512 A JP 2002086512A JP 2003283509 A JP2003283509 A JP 2003283509A
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indoor
directional signal
signal
wall
outdoor
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Japanese (ja)
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Shigetaka Noguchi
茂孝 野口
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Sharp Corp
シャープ株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To easily discriminate whether the location of a radio communication terminal is indoor or outdoor without particularly providing the radio communication terminal with an attitude control function based on an angle sensor and an acceleration sensor. <P>SOLUTION: When a wall surface is really present, a directional signal reflected on the wall surface is received by a directional antenna which sends the directional signal after the lapse of a time proportional to a distance between the wall surface and the radio communication terminal. The received directional signal is passed through a directional antenna switching part 12, the directional signal is received by a directional signal receiving part 13, the presence/absence of the directional signal is confirmed by a directional signal confirming part 14 and together with information such as the signal strength of the directional signal and the relative location of the wall surface led from the analysis of the propagation time of the directional signal, whether the location is indoor or outdoor is decided by an indoor/outdoor deciding part 16. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、無線LANシステムにおける携帯端末等に利用できる屋内屋外判定装置に関するものである。 BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention relates to an indoor outdoor decision apparatus which can be utilized in a portable terminal or the like in a wireless LAN system. 本発明に関する屋内とは、少なくとも上方に天井(屋根)が存在していれば良く、例えば屋根付きの駅のホームも屋内であるとする。 Indoor and relates present invention, at least the upper ceiling may if present (roof), for example the covered station Home also indoors. 【0002】 【従来の技術】小電力無線LAN(Local Are [0002] low-power wireless LAN (Local Are
a Network)システムのように近年許可された無線通信システムは、同一周波数帯を使用する既存の他の無線通信システムとの干渉を避けるために、使用許可範囲が屋内に限定されている場合が存在する。 a Network) recently authorized radio communication system as the system in order to avoid interference with other existing wireless communication systems using the same frequency band, there are cases where use permission range is limited to indoors to. 【0003】例えば、5.2GHz帯を使用するIEE [0003] For example, IEE to use the 5.2GHz band
E802.11aやARIB(電波産業会)のHI−S E802.11a and HI-S of the ARIB (Association of Radio Industries and Businesses)
WAN規格のような小電力無線通信システムは、屋外で使用する既存の衛星携帯電話システムのアップリンク(衛星接続局から衛星への通信)と同一の周波数帯を使用している。 Low-power radio communication systems such as WAN standards, use the same frequency band as the existing mobile satellite system uplink to be used outdoors (communication from the satellite stations connected to the satellite). このため、前記小電力無線通信システムは、衛星携帯電話システムとの干渉を回避するために使用許可範囲が屋内に限定されている。 Therefore, the low-power radio communication systems, use permission range in order to avoid interference with the satellite mobile telephone system is restricted to indoors. 【0004】従来から前記小電力無線通信システムを屋内利用に限定させるための方策は、無線通信システムの端末に警告シールを貼り付けることにより、屋内利用を使用者に遵守させる方法が採られてきた。 [0004] measures to limit the low-power radio communication system for indoor use conventionally, by attaching the terminal to alert the seal of the wireless communication system, a method of compliance with indoor use to the user have been taken . この方策は、 This strategy,
利用者の認識が不足している場合や利用者のモラルが欠如している場合には、屋外使用禁止の抑制手段とはならず、衛星携帯電話システム等の他の無線通信システムへの妨害を防止することができない。 When or if the user of the moral recognition of the user is insufficient is missing, not the means for suppressing outdoor disabled, interference with the other wireless communication system of a satellite mobile telephone system, etc. prevention can not be. 【0005】この問題を解決した従来例として、特開2 [0005] As a conventional example which has solved this problem, JP 2
001−136117号公報に記載の構内無線通信装置がある。 There are premises radio communication apparatus according to 001-136117 JP. 図8にこの無線通信装置のブロック図を示す。 Figure 8 shows a block diagram of the wireless communication device.
図中101はアンテナ、102は受信機、103は送信機であり、104はデジタル通信を行うための変復調部、105は無線LAN装置としてデータリンクプロトコルを実現するとともにホストPCとのインターフェースをデータリンク部である。 Figure 101 is an antenna, 102 is a receiver, 103 is a transmitter, 104 modem unit for performing digital communication, 105 data link interface with the host PC with implementing data link protocol as a wireless LAN device it is a part. 107は屋内判定部であり、パルス送信部109からの信号は指向性アンテナ1 107 is an indoor determination unit, the signal from the pulse transmitting unit 109 directional antenna 1
06を経由して、装置上方へ放射される。 06 via, is radiated to the device upwards. 屋内である場合、送信された電波は天井で反射し、アンテナを経由しパルス受信部108で受信される。 If it is indoors, the radio wave transmitted is reflected by the ceiling, it is received by the pulse receiving unit 108 via the antenna. この時、パルス送信時間後、一定時間以内で反射信号が受信できるか否かを時間差判定部110で判断することにより天井が存在するか否かが判定できる。 At this time, after the pulse transmission time, whether ceiling is present by determining whether the reflected signal can be received within a predetermined time by the time difference determining unit 110 can be determined. 【0006】屋内判定部107は、定期的に構内無線装置が屋内で使用されているかを判定するが、屋外であると判定された場合、警報発生部111を用いてホストPC [0006] Indoor determination section 107 periodically determines whether private wireless device is being used indoors, when it is determined that the outdoor, the host PC using the alarm unit 111
に注意を促す。 Attention to. 一定時間後も屋内に戻って使用されないと期間判定部112により判断される場合、電源部11 If it is determined by the period determination unit 112 when not used back indoors after a certain time, the power supply unit 11
3を制御して強制的に無線送信部の電源を停止する。 3 controls the forcibly stops the power of the radio transmission unit. 前記従来例の屋内と屋外の判別手段は、天井方向に電波や赤外線等を放射して、一定時間以内に天井で反射した反射信号が受信できた場合に、屋内と判断している。 Indoor and outdoor determination means of the conventional example, and emits radio waves or infrared rays on the ceiling direction, when a reflected signal reflected by the ceiling within a predetermined time has been received, it is determined as an indoor. 【0007】 【発明が解決しようとする課題】特開2001−136 [0007] The present invention is to provide a JP 2001-136
117号公報の方式は、天井方向を判定するために、角度センサや加速度センサによる姿勢制御機能を設けて、 Method 117 publication is that in order to determine the ceiling direction, provided with a posture control function by the angle sensor or an acceleration sensor,
指向性アンテナ等からの信号の放射が常に天井方向になるようにしている。 Radiation signal from the directional antenna or the like is always set to be the ceiling direction. しかしながら、角度センサや加速度センサによる姿勢制御機能を無線通信端末装置に設けることは、無線通信端末装置の製造コストの増加と容積の増大を招いてしまうので、小型の携帯用無線端末に姿勢制御機能を搭載するのには課題がある。 However, the provision of the posture control function by the angle sensor or an acceleration sensor to the wireless communication terminal apparatus, the resulting in an increase in growth and volume of the manufacturing cost of the wireless communication terminal apparatus, the posture control function in a small portable radio terminal there is a problem is to mount the. 【0008】従って本発明の目的は、無線通信端末に角度センサや加速度センサによる姿勢制御機能を特に設けることなしに、無線通信端末の存在位置が屋内か屋外かを簡易に判別する機能を備えた屋内屋外判定装置を提供することにある。 It is therefore an object of the present invention, without particularly providing an attitude control function by the angle sensor or an acceleration sensor to the wireless communication terminal, location of the wireless communication terminal has a function of determining whether indoors or outdoors in a simple It is to provide an indoor outdoor determination unit. 【0009】 【課題を解決するための手段】本発明は、相互にほぼ直角の関係をなす3方向と、前記3方向のそれぞれ反対方向の3方向の計6方向への指向性を備え、前記6方向を区別して送信する送信手段と、前記送信手段から送信された信号の反射信号を前記6方向を区別して受信する受信手段と、前記受信手段を受け前記6方向からの反射信号の有無を確認する確認手段と、前記確認手段の結果に基づき屋内と屋外の区別を判定する屋内屋外判定部とを備えたことを特徴とする。 [0009] According to an aspect of the present invention, mutually provided with three directions forming a substantially perpendicular relationship, the directivity of the opposite directions in the three directions in total six directions of the three directions, the transmission means for transmitting to distinguish six directions, and receiving means for receiving a reflected signal of the signal transmitted from said transmitting means to distinguish the six directions, the presence or absence of reflected signals from the six directions receiving said receiving means and confirmation means for confirming, characterized in that a indoor outdoor determination unit determines the distinction of indoor and outdoor based on a result of said confirmation means. 【0010】本発明の前記屋内屋外判定装置において、 [0010] In the indoor outdoor determination apparatus of the present invention,
前記送信手段は、前記6方向に対応した指向性信号送信部と、前記指向性信号送信部を切り替える指向性信号切替部とを備えたことを特徴とする。 It said transmission means comprising: the directional signal transmission unit corresponding to the six directions, and a directional signal switching unit for switching the directional signal transmitter. 【0011】また、本発明の前記屋内屋外判定装置において、前記受信手段は、前記6方向に対応した指向性信号受信部と、前記指向性信号受信部を切り替える指向性信号切替部とを備えたことを特徴とする。 Further, in the indoor outdoor determination apparatus of the present invention, the receiving means comprises a directional signal receiver corresponding to the six directions, and a directional signal switching unit for switching the directional signal receiver it is characterized in. 【0012】また、本発明の前記屋内屋外判定装置において、前記確認手段は、前記6方向の壁面の有無を検知した結果を出力することを特徴とする。 Further, in the indoor outdoor determination apparatus of the present invention, the confirmation means, and outputs the result of detecting the presence or absence of the six directions of the wall. 【0013】ここで、前記確認手段は、前記壁面に反射された指向性信号の反射信号の到達時間と、前記反射信号の信号強度と、前記反射信号の周波数偏移に基づいて前記6方向の壁面の有無を検知することを特徴とする。 [0013] Here, the confirmation means, the time and the arrival of the reflected signal reflected directional signal to the wall surface, and the signal strength of the reflected signal, the six directions based on the frequency shift of the reflected signal and detecting the presence or absence of the wall. 【0014】また、本発明の前記屋内屋外判定装置において、前記屋内屋外判定部は、検知した壁面の存在個数と壁面の存在する相対位置を認識することにより、床面の反対方向に天井が存在するかどうかの判断基準に基づいて屋内と判断することを特徴とする。 Further, in the indoor outdoor determination apparatus of the present invention, the indoor outdoor determination unit, by recognizing existing relative positions of the present number and the wall of the detected wall, there is a ceiling in the direction opposite to the floor surface characterized by determining that the indoor based on whether criteria are. 【0015】ここで、前記屋内屋外判定部は、検知した壁面の個数が6の場合において、屋内と判断すること、 [0015] Here, the indoor outdoor determination unit, when the number of the detected wall surface 6, it is determined that the indoor,
検知した壁面の個数が1の場合において、屋外と判断すること、検知した壁面の個数が2の場合において、壁面を検知した方向が、お互いに隣接していない場合は屋内と判断し、お互いに隣接している場合は屋外と判断すること、検知した壁面の個数が3,4,5の場合において、前記屋内屋外判定装置に最も近距離の壁面を検知した方向の反対方向に存在する壁面を検知した場合は屋内と判断し、壁面を検知しない場合は屋内と判断することを特徴とする。 In case the number of the detected wall is 1, it is determined that the outdoor, in the case the number of the detected wall surface 2, the direction has been detected walls, if not adjacent to each other is determined that indoors, to each other adjoining If are possible to determine that the outdoor, in the case of the number of the detected walls 3, 4, 5, the wall that exists in the direction opposite to the direction which detects the closest distance of the wall surface in the indoor outdoor determination device when detecting, it is determined that the indoor, if not detected wall surface and determines that the indoor. 【0016】さらに、本発明は、前記屋内屋外判定装置を備えたことを特徴とする無線通信端末である。 Furthermore, the present invention is a wireless communication terminal, characterized by comprising the indoor outdoor determination unit. 【0017】本発明の屋内屋外判定装置においては、無線通信端末を中心とする6方向にそれぞれ指向性信号を送信する手段を設け、送信した指向性信号の反射信号の有無と反射信号が存在した場合の到達時間等を認識することにより、壁面があるかどうかを検知する。 [0017] In the indoor outdoor determination apparatus of the present invention, the means for transmitting the respective directional signal in the 6 direction around the wireless communication terminal is provided, whether the reflected signal of the reflected signal of the transmitted directional signal is present by recognizing the arrival time of the case, to detect whether there is a wall. さらに、 further,
検知した壁面の存在個数と相対位置を認識することにより、床面の反対方向に天井(屋根)が存在するかどうかを判断することにより、屋内と屋外の区別を判定する。 Determined by recognizing the existence number and relative position of the detected wall, by determining whether the ceiling in the direction opposite to the floor surface (roof) is present, the distinction between indoor and outdoor.
例えば、6個の壁面を検知した場合は、全ての方向に壁面が存在するので屋内と判定し、1個の壁面のみを検知した場合は床面のみが存在するので屋外と判定する。 For example, if it is detected six walls, it is determined that the indoor since the wall in all directions are present, determines that the outdoor since only the floor when detecting only one wall is present. このように壁面が2〜5個の場合についてもそれぞれ判定する。 Thus each well is determined for the case wall is 2-5. 【0018】 【発明の実施の形態】以下に、本発明の実施の形態について説明する。 [0018] PREFERRED EMBODIMENTS The following describes embodiments of the present invention. 図1は、屋内屋外判定機能を備えた無線通信端末装置の構成例を示した図であり、図2は、屋外屋内判定装置を備えた無線通信端末の構造の例を示した図である。 Figure 1 is a diagram showing a configuration example of a wireless communication terminal with an indoor outdoor determination function, FIG. 2 is a diagram showing an example of a structure of a wireless communication terminal with an outdoor indoor determination device. この図1と図2を用いて、屋内屋外判定装置を備えた無線通信端末の構成と動作について説明する。 With reference to FIG. 1 and FIG. 2, the configuration and operation of the wireless communication terminal with an indoor outdoor determination unit. 【0019】本発明の実施の形態の無線通信端末の構造は、図2の(a)の符号1aで示すような略直方体の構造となっており、無線通信端末本体1aの各面に6個の指向性信号送信部(指向性アンテナ)11−1から11 The structure of the wireless communication terminal of the embodiment of the present invention has the substantially rectangular parallelepiped structure as shown by reference numeral 1a in FIG. 2 (a), 6 pieces on each side of the wireless communication terminal body 1a directional signal transmitter (directional antenna) 11-1 to 11
−6を備えている。 And a -6. 前記指向性アンテナは、相互にほぼ直角の関係をなす3方向と、前記3方向のそれぞれ反対方向の3方向の計6方向への指向性を備えている。 The directional antenna includes a three-way forming a substantially perpendicular relationship to each other, the directivity of the three directions in total six directions opposite directions of the three directions. また、その他の回路は無線通信端末1aに内蔵されており、前記指向性アンテナと図1に示すように接続されている。 Further, other circuits have been built in the wireless communication terminal 1a, it is connected as shown in the directional antenna and FIG. 【0020】本発明の屋内屋外判定装置を備えた無線通信端末は、屋内屋外判定装置10,無線通信装置20, The wireless communication terminal with an indoor outdoor determination apparatus of the present invention, the indoor outdoor decision unit 10, the wireless communication device 20,
システム制御装置30からなる。 Made from the system controller 30. 無線通信端末の外形は6面からなる直方体構造であって、各面に指向性アンテナ11a〜11nが1本ずつ装着されている無線によるデータの送受信機能を備えた携帯情報端末(PDA)である。 The outer shape of the wireless communication terminal is a rectangular structure composed of six faces, are portable information terminals (PDA) having a function of transmitting and receiving data by radio directional antenna 11a~11n on each side are mounted one by one . 【0021】屋内屋外判定装置10は、複数の指向性アンテナ(本実施の形態では6本)11a〜11n、指向性アンテナ切替部12、指向性信号受信部13、指向性信号確認部14、指向性信号送信部15、屋内屋外判定部16で構成されている。 The indoor outdoor determination device 10 (six in this embodiment) a plurality of directional antennas 11a to 11n, the directional antenna switching unit 12, the directional signal receiver 13, the directional signal confirmation section 14, oriented sexual signal transmitter 15 is configured in the indoor outdoor determination unit 16. システム制御装置30の指令に基づき、指向性信号送信部15で壁面(床・天井を含む)の有無を判断するための指向性信号(パルス波等) Based on commands from the system controller 30, the directional signal to determine the presence or absence of the wall at the directional signal transmitter 15 (including the floor, ceiling) (pulse wave, etc.)
を生成し、指向性アンテナ切替部12により、どの指向性アンテナから指向性信号を送出するかを選択する。 Generates, by directional antenna switching unit 12, selects or transmit a directional signal from which the directional antenna. 指向性アンテナから送出された指向性信号は、ほぼ1方向に直線的に進行する。 Directional signal transmitted from the directional antenna is linearly traveling in substantially one direction. 【0022】実際に壁面が存在した場合には、壁面で反射された指向性信号は、壁面と無線通信端末との距離に比例した時間を経過した後に指向性信号を送出した指向性アンテナにより受信される。 [0022] Indeed if the wall is present, directional signal reflected by the wall, received by the directional antenna that transmits the directional signal after a lapse of time proportional to the distance between the wall surface and the wireless communication terminal It is. 受信された指向性信号は、指向性アンテナ切替部12を経由して、指向性信号受信部13で指向性信号を受信し、指向性信号確認部1 Received directional signals, via a directional antenna switching unit 12 receives the directional signal in the directional signal receiver 13, the directional signal confirmation section 1
4で指向性信号の有無の確認がなされ、屋内屋外判定部16で指向性信号の信号強度、指向性信号の伝搬時間の解析から導かれる壁面の相対位置等の情報と合わせて屋内と屋外の判定を行う。 4 Checking for directional signal is performed, the signal intensity of the directional signal in the indoor outdoor determination unit 16, together with the wall of the relative position information such as that derived from the analysis of the propagation time of the directional signal indoor and outdoor a determination is made. 【0023】無線通信装置20は、送受信アンテナ2 The wireless communication device 20 includes a transmitting and receiving antenna 2
1、アンテナ共用部22、受信部23、信号復調部2 1, the antenna duplexer 22, receiver 23, the signal demodulation unit 2
4、バス制御部25、信号変調部26、送信部27で構成されており、パソコン等のLANのデータを送受信する機能をもつ。 4, the bus control unit 25, the signal modulator 26 is configured by a transmitter 27 has a function of transmitting and receiving LAN data such as a personal computer. 【0024】パソコンからバス制御部25に送られた通信データは信号変調部26により、QAMやQPSK等の無線データに変調される。 The communication data sent to the bus control unit 25 from the personal computer by signal modulator 26, is modulated to a radio data, such as QAM and QPSK. 無線データは送信部27により、高周波信号にアップコンバートされ、アンテナ共用部22を通り、送受信用アンテナ21により無線データ信号波として送信される。 The wireless data transmission section 27, is up-converted into RF signals through the antenna duplexer 22 and transmitted by the transmitting and receiving antenna 21 as a radio data signal wave. また、送受信用アンテナ2 In addition, the transmitting and receiving antenna 2
1により受信された無線データ信号波は、アンテナ共用部22を通り、受信部23によりダウンコンバートされて、信号復調部24で無線データの復調を行う。 Wireless data signal waves received by 1 passes through the antenna duplexer 22, is down-converted by the receiver 23, demodulates the radio data signal demodulator 24. 復調された通信データはバス制御部25を通して、パソコンへと送られる。 Communication data demodulated through the bus controller 25 and sent to the PC. システム制御装置30は屋内屋外判定装置10と無線通信装置20について個々に制御を行う他に、無線通信端末についての全体的な制御を行っている。 System controller 30 in addition to performing individually control for indoors and outdoors determination device 10 and the wireless communication device 20, is carried out overall control of the wireless communication terminal. 【0025】図2の(b)は、これまでに説明した図2 The diagram (b) of FIG. 2, previously described 2
の(a)とは別の無線通信端末の構造の例をした図である。 And (a) is a diagram in which an example of the structure of another wireless communication terminal. 無線通信端末1bは、略直方体構造のアンテナ取り付け部分2の各面に6個の指向性信号送信部(指向性アンテナ)11−1から11−6を備え、かつアンテナ取り付け部分2の内部には、指向性信号切替部12が内蔵されている。 Wireless communication terminal 1b has an antenna mounting portion 2 of the six directional signal transmission unit on each side of the substantially rectangular parallelepiped structure with a 11-6 from (directional antenna) 11-1, and the interior of the antenna attachment portion 2 , directional signal switching unit 12 is incorporated. さらに、アンテナ取り付け部分2は、アンテナ支持部分3により無線通信端末本体と接続されている。 Further, the antenna attachment portion 2 is connected to the wireless communication terminal body by an antenna supporting portion 3. 図2の(b)に示すように、本発明の屋内屋外判定装置は、無線通信端末本体と必ずしも一体でなくても良く、屋内屋外判定装置の一部あるいは全部が無線通信端末本体1bと離れていても良い。 As shown in (b) of FIG. 2, the indoor outdoor determination apparatus of the present invention may not necessarily be integrated with the radio communication terminal main body, a part or all of the indoor outdoor determination device away from the radio communication terminal body 1b even though it may. 【0026】図3は壁面の検出方法を示す流れ図であり、図4は屋内屋外判定方法を示す流れ図である。 FIG. 3 is a flow chart illustrating a method of detecting the wall, FIG. 4 is a flowchart showing an indoor outdoor determination method. この図3と図4を使用して、本発明の実施の形態の動作フローについて説明を行う。 Using this FIG. 3 and FIG. 4, a description is given of the operation flow of the embodiment of the present invention. 【0027】無線通信端末は、通信を開始する前にそれぞれの方向(前記6方向)に対応した壁面の検知を行う。 The wireless communication terminal performs detection of the wall surface corresponding to each direction before starting the communication (the six directions). 図3のステップS11において、壁面の検知回数I In step S11 in FIG. 3, the wall of the detection number I
の初期化を行い、I=0に設定する。 Perform the initialization, it is set to I = 0. 次のステップS1 The next step S1
2では、I=6(6方向全て試行済みの状態)であるかどうか判断し、I=6であるならば、図4に示す屋内屋外判定のステップAに進み、I=6でなければ、ステップS13で、Iに1を加える動作を行う。 In 2, it is determined whether I = 6 (6 direction all trials completed state), if it is I = 6, the process proceeds to step A indoor outdoor determination shown in FIG. 4, unless I = 6, in step S13, it performs an operation of adding 1 to I. Iの値は、指向性アンテナの各方向に対応しているので、Iの値と壁面の検知データを組み合わせることにより、壁面の相対位置が判別できる。 The value of I is therefore corresponds to each direction of the directional antenna, by combining the sensed data values ​​and the wall surface of the I, it can be determined relative position of the walls. 【0028】次のステップS14では、壁面の検知のために指向性信号送信部11aから指向性信号の送信を行い、ステップS15において壁面で反射された指向性信号の反射信号に対する受信を試み、ステップS16で反射信号の有り無しを判断する。 [0028] In the next step S14, performs transmission of the directional signal from the directional signal transmitter 11a for detecting the wall face, attempts to receive to the reflection signal of the directional signal reflected by the wall surface in step S15, step determining the presence or absence of the reflected signal at S16. このステップS16における、反射信号の有り無しの判定は一定レベル以上の電力が検出されたかどうかで判断する。 In step S16, the determination of the presence or absence of the reflected signal is determined by whether a certain level or more power is detected. 一定時間以内に反射信号が受信できた場合には、壁面が存在する可能性があると判断してステップS17に進み、一定時間以内に受信できなかった場合には、反射信号がないものと判断してステップS12に戻り、別の方向に対する壁面の検知を試みる。 A certain time when the reflected signal can be received within, the process proceeds to step S17 it is determined that there may be a wall, if it can not receive within a predetermined time, judges that there is no reflected signal to return to step S12, try to detect the wall surface to another direction. 【0029】ステップS17では、反射信号を解析することにより、指向性信号が送信されてから壁面で反射されて、指向性信号が送信されて、反射信号が受信されるまでの時間(信号の到達時間)や反射信号の信号強度や周波数偏移等のデータ取得を行う。 [0029] At step S17, by analyzing the reflected signal and directional signal is reflected by the wall from being transmitted, and directional signal is transmitted, arrival time (signal to the reflection signal is received performs signal strength and data acquisition frequency shift such time) and the reflected signal. つまり、反射信号の到達時間により無線通信端末と壁面との距離が判別でき、信号強度と組み合わせることで反射体の反射率等の情報が得られる。 That is, the arrival time of the reflected signal to determine the distance from the radio communication terminal and the wall surface, information such as the reflectivity of the reflector is obtained by combining the signal strength. さらに、ドップラー周波数偏移により無線通信端末あるいは反射体の移動速度がドップラー効果により判別できる。 Further, the moving speed of the radio communication terminal or the reflector by the Doppler frequency shift can be determined by the Doppler effect. 【0030】これらの情報をもとにステップS18では、反射体が壁面かどうかの判別をステップS16より精度を上げて行うことができる。 [0030] At step S18 on the basis of these information, the reflector can be made to increase the accuracy from step S16 whether the determination whether the wall. 例えば、指向性信号の到達時間で割り出した無線通信端末と反射体との距離に比較して、信号強度が弱く、60Hz程度のドップラー周波数偏移(送信周波数10GHzの場合)があった場合、反射体が人間であり、反射断面が複雑なことで指向性信号が散乱されて信号強度が弱まり、また人間が歩行移動してドップラー周波数偏移が起きたと推定でき、反射体は壁面ではないと判別できる。 For example, compared to the distance from the radio communication terminal indexing in arrival time of the directional signal and the reflector, if the signal strength is weak, there Doppler frequency shift of about 60 Hz (if the transmission frequency 10 GHz) is reflected body is human, the reflective section is directional signal is weakened scattered by the signal strength by a complex, also possible to estimate the human Doppler frequency shift occurs by walking mobile, reflector and not the wall surface discrimination it can. 同様の送信条件で、 In a similar transmission conditions,
自動車の場合は600Hz程度となる。 In the case of the automobile is about 600Hz. 【0031】次のステップS19では、指向性信号を送受信した指向性アンテナの番号(Iと一致),壁面との距離,電波強度等の解析データを屋内屋外判定部16に記憶し、ステップS12に戻り別の方向に対する壁面の検知を試みる。 [0031] In the next step S19, the directional signal transmitted and received number of directional antennas (consistent with I), the distance between the wall surface, and stores the analysis data of the radio wave strength and the like in the indoor outdoor determination unit 16, the step S12 try the detection of the wall for the return another direction. 【0032】次に図4に示す屋内屋外判定のステップを説明する。 [0032] Next will be described the steps of indoor outdoor determination shown in FIG. 前記6方向全てに対して、壁面の有無を検知した後で、ステップS21に進んで壁面の検知個数Nが6の場合の判定を行う。 The relative 6 direction all, after detecting the presence or absence of the wall, it is determined if the wall of the detection number N is 6 proceeds to step S21. 壁面の検知個数Nとは、前記6 The wall of the detection number N, the 6
方向に対応する指向性アンテナが反射信号を受信して、 Directional antennas corresponding to the direction and receiving a reflected signal,
壁面であると検知した個数であり、実際の壁面の数とは異なる場合もある。 Is the number which is detected as a wall, may differ from the actual number of walls. 例えば、壁面の検知個数が実際の検知個数と一致する場合というのは、6つの壁面に対して、無線通信端末に装着した指向性アンテナがどの壁面に対しても傾いていない場合だけであり、多くの場合は多少なりとも傾いているので実際の壁面の個数とは一致しない。 For example, because when the detection number of the wall is matched with the actual detection number, relative to the six walls, only if not tilted with respect to directional antennas which wall mounted on the radio communication terminal, It does not coincide with the actual wall number of because in many cases are more or less inclined. 【0033】検知個数Nが6である場合、すなわち全方向に壁面がある場合には屋内と判断できる。 [0033] When the detected number N is 6, that is, if there is a wall in all directions can be determined to indoors. 検知個数N Detecting the number N
が6でない場合はステップS22に進み、壁面の検知個数Nが1の場合の判定を行う。 There proceeds to step S22 if not 6, the wall surface of the detection number N makes a determination in the case of 1. 壁面の検知個数Nが1の場合とは、無線通信端末が床面(机等の場合もある)と水平に置かれている場合で、床面のみしか壁面が存在しないので、屋外と判定できる。 If the wall surface of the detection number N is 1, if the wireless communication terminal is placed horizontally with the floor surface (sometimes such as a desk), because there is no wall surface only a floor surface, it can be determined that the outdoor . 【0034】検知個数Nが1でない場合はステップS2 [0034] When detecting the number N is not 1 step S2
3に進み、壁面の検知個数Nが2の場合の判定を行う。 Advances to 3, the wall of the detection number N makes a determination in the case of 2.
壁面の検知個数Nが2の場合にはステップS26で、検知された2個の壁面の方向がお互いに正反対かどうかの判定を行う。 In step S26 in the case wall of the detection number N is 2, a determination direction of the detected two wall was of whether opposite each other. 【0035】検知個数Nが2でない場合は、ステップS [0035] When the detected number N is not 2, step S
24に進み、無線通信端末から最も近い壁面をステップS16で計算されたデータにより決定し、ステップS2 Proceeds to 24, the nearest wall from the wireless communication terminal determined by the data calculated in step S16, step S2
5で最も近い壁面の反対側に壁面が存在するかどうかを判定し、反対側に壁面が存在すれば屋内であると判定し、存在しなければ屋外であると判断する。 Whether wall opposite the nearest wall 5 exists is determined, and determined to be indoors if there is a wall on the opposite side, it is determined that if there is a outdoors. 以下、図4 Below, as shown in FIG. 4
から図6を用いて具体的な判定例について説明する。 A specific determination will be described with reference to FIG. 6. 【0036】(実際の壁面の個数に基づく具体的な判定方法)図5は実際の壁面の個数が2の場合の具体例であり、指向性アンテナが無線通信端末に垂直に装着されており、無線通信端末の傾きがないとした場合に関する例である。 [0036] a (actual specific determination method based on the number of wall surface) Specific examples of the case of FIG. 5 is the number of actual walls 2, directional antennas are mounted vertically to the wireless communication terminal, an example of case where there is no inclination of the wireless communication terminal. 図5の(a)は床面41と天井42の2個の壁面が存在し、無線通信端末40aは床面41および天井42と平行な位置に存在する。 (A) of FIG. 5 there are two walls of the floor 41 and the ceiling 42, the wireless communication terminal 40a is present in a position parallel with the floor surface 41 and the ceiling 42. 指向性信号51aは床面41で、指向性信号52aは天井42でそれぞれ反射されるが、指向性信号53b,54bは壁面がないために無線通信端末は指向性信号53b,54bの反射信号を受信できない。 In directional signal 51a is the floor 41, but the directional signal 52a is reflected respectively at the ceiling 42, directional signal 53b, the wireless communication terminal directional signal 53b to 54b has no wall, a reflected signal 54b It can not be received. 【0037】図5の(b)は床面41と床面に垂直な壁面43が存在し、無線通信端末40aは床面41と壁面43に水平な位置に存在する。 [0037] figure. 5 (b) there is a vertical wall surface 43 on the floor 41 and the floor surface, a wireless communication terminal 40a is present in the horizontal position on the floor 41 and the wall 43. 指向性信号51aは床面41で、指向性信号53aは壁面43でそれぞれ反射されるが、指向性信号53b,54bは壁面がないために無線通信端末は指向性信号52b,54bの反射信号を受信できない。 In directional signal 51a is the floor 41, but the directional signal 53a is reflected respectively at the wall 43, directional signal 53b, the wireless communication terminal directional signal 52b to 54b has no wall, a reflected signal 54b It can not be received. 【0038】ステップS23及びステップS26で壁面の検知個数Nが2のときに屋内と判定できるのは図5の(a)に相当するケースであり、いかなる状況においても存在する床面の正反対に壁面(天井)が存在する場合である。 [0038] The can determine indoor when the wall of the detection number N is 2 in step S23 and step S26 are cases corresponding to (a) of FIG. 5, diametrically wall surface of the floor that is present in any situation it is a case where (ceiling) is present. 図5の(b)のケースでは、床面に隣接する位置に壁面が存在するが、天井は存在しないので、屋外と判定できる。 In the case of (b) in FIG. 5, although the wall at a position adjacent to the floor exists, ceiling does not exist, it can be determined that the outdoor. 【0039】図6は実際の壁面の個数が2の場合の図5 The view of the case shown in FIG. 6 is the number of actual wall is 2 5
とは別の具体例であり、無線通信端末が床面41に対して傾いている。 The is another embodiment, the wireless communication terminal is inclined with respect to the floor 41. 図6の(a)は床面41と天井42の2 Figure. 6 (a) 2 of the floor 41 and the ceiling 42
個の壁面が存在し、無線通信端末40bは床面41および天井42に対して傾きをもっている。 There are number of walls, the wireless communication terminal 40b has an inclination relative to the floor surface 41 and the ceiling 42. 指向性信号55 Directional signal 55
a1,56aは床面41で、指向性信号57aは天井4 a1,56a the floor 41, directional signal 57a is a ceiling 4
2でそれぞれ反射されるが、指向性信号58bは壁面がないために無線通信端末は指向性信号58bの反射信号を受信できない。 Is reflected respectively at 2, directional signal 58b is the wireless communication terminal because there is no wall surface can not receive a reflected signal of the directional signal 58b. 【0040】図6の(b)は床面41と床面に垂直な壁面43が存在し、無線通信端末40bは床面41と壁面43に対して図5の(b)のような傾きをもっている。 [0040] (b) of FIG. 6 there is a vertical wall surface 43 on the floor 41 and the floor surface, a wireless communication terminal 40b is with an inclination such as (b) of FIG. 5 with respect to the floor surface 41 and the wall 43 there.
指向性信号56aは床面41で、指向性信号55a2は壁面43でそれぞれ反射されるが、指向性信号57b, In directional signal 56a is the floor surface 41, directional signal 55a2 but are reflected respectively by the wall 43, the directional signal 57 b,
58bは壁面がないために無線通信端末は指向性信号5 58b is a wireless communication terminal because there is no wall directional signal 5
7b,58bの反射信号を受信できない。 7b, it can not receive a reflected signal 58b. 【0041】図6の(a)では、検知個数Nは3でありステップS25により判断を行う。 [0041] In (a) of FIG. 6, the detection number N makes decisions by step S25 is 3. この場合、無線通信端末が最も壁面に近いのは指向性信号56aを送信した面であるので、この反対側の面に対応する指向性信号5 In this case, since the wireless communication terminal closest to the wall surface is a plane that has transmitted the directional signal 56a, directional signal corresponding to the surface of the opposite side 5
7aの反射信号を受信できれば屋内と判定できる。 If receiving a reflected signal 7a can determine that the indoor. 図6 Figure 6
の(a)では、天井42により指向性信号57aの反射信号が受信できるので、屋内と判定できる。 In the (a), since it receives the reflected signal of the directional signal 57a is a ceiling 42, it can be determined that the indoor. 図6の(b)では、検知個数Nは2でありステップS23及びS26により判断を行う。 In (b) of FIG. 6, the detection number N makes decisions in steps S23 and S26 is 2. この場合、検知した壁面はお互いに隣接しており、正反対の壁面は検知されていないので、屋外と判定できる。 In this case, the detected wall is adjacent to each other, since the opposite wall is not detected, it can be determined that the outdoor. 【0042】図7は実際の壁面の個数が3の場合の具体例であり、無線通信端末が床面41に対して図7の(a)に示す傾きをもっている。 [0042] Figure 7 is a specific example of the actual number of walls 3, the radio communication terminal has an inclination as shown in FIG. 7 (a) to the floor surface 41. 図7の(a)は床面4 Figure 7 (a) is the floor 4
1,天井42とこれに隣接した壁面43が存在し、無線通信端末40cは床面41,天井42,壁面43に対して図7に示すような傾きをもっている。 1, there is a wall 43 adjacent to the ceiling 42 to the wireless communication terminal 40c is floor 41, a ceiling 42, has an inclination as shown in FIG. 7 with respect to the wall 43. 指向性信号59 Directional signal 59
a,60a1は床面41で、指向性信号61aは天井4 a, 60a1 in the floor 41, directional signal 61a is a ceiling 4
2で、指向性信号62aは壁面43でそれぞれ反射される。 2, directional signal 62a is reflected respectively on the wall surface 43. 【0043】図7の(b)は床面41と床面に垂直な壁面43,44が存在し、無線通信端末40cは床面41 [0043] (b) in FIG. 7 there is a vertical wall 43, 44 to the floor 41 and the floor surface, a wireless communication terminal 40c is the floor 41
と壁面43,44に対して図7の(b)に示す傾きをもっている。 It has an inclination as shown in (b) of FIG. 7 with respect to wall 43 and 44. 指向性信号59aは床面41で、指向性信号62bは壁面43で、指向性信号60a2は壁面44でそれぞれ反射されるが、指向性信号61bは壁面(天井)がないために無線通信端末40cは指向性信号61 In directional signal 59a is the floor surface 41, the directivity in the signal 62b is a wall 43, directional signal 60a2 is reflected respectively at the wall 44, directional signal 61b is a wireless communication because there is no wall surface (ceiling) terminal 40c directional signal 61
bの反射信号を受信できないので、屋外と判定できる。 Can not receive a reflected signal b, it can be determined that the outdoor. 【0044】図7の(a)では、検知個数Nは4でありステップS25により判断を行う。 [0044] In (a) of FIG. 7, for sensing the number N is 4 determined in step S25. この場合、無線通信端末が最も壁面に近いのは指向性信号59aを送信した面であるので、この反対側の面に対応する指向性信号6 In this case, since the wireless communication terminal closest to the wall surface is a plane that has transmitted the directional signal 59a, directional signal corresponding to the surface of the opposite side 6
1aの反射信号を受信できれば屋内と判定できる。 If receiving a reflected signal 1a can be determined that the indoor. 図7 Figure 7
の(a)では、天井42により指向性信号61aの反射信号が受信できるので、屋内と判定できる。 In the (a), since it receives the reflected signal of the directional signal 61a is a ceiling 42, it can be determined that the indoor. 【0045】図7の(b)では、検知個数Nは3でありステップS25により判断を行う。 [0045] In (b) of FIG. 7, the detection number N makes decisions by step S25 is 3. この場合、無線通信端末が最も壁面に近いのは指向性信号59aを送信した面であるので、この反対側の面に対応する指向性信号6 In this case, since the wireless communication terminal closest to the wall surface is a plane that has transmitted the directional signal 59a, directional signal corresponding to the surface of the opposite side 6
1bの反射信号を受信できれば屋内と判定できる。 If receiving a reflected signal 1b can be determined that the indoor. 図6 Figure 6
の(b)では、指向性信号61bが反射できる壁面(天井)が存在しないので、指向性信号61bの反射信号は受信できない。 In the (b), since the directional signal 61b is not present wall (ceiling) which can reflect the reflected signal of the directional signal 61b is not received. つまり、この場合は屋外と判定できる。 That is, in this case can be determined to an outdoor. 【0046】さらに、屋内屋外検出装置による壁面の検出手段については、本発明の実施の形態では電波を使用した例を説明したが、赤外線等の光信号や超音波等を用いても良い。 [0046] Further, for the detection means of the wall surface by the indoor outdoor detection device, but in the embodiment of the present invention has been described an example using radio waves, may be used an optical signal and ultrasonic wave or the like such as infrared rays. したがって、図1の構成例のように無線通信端末に本発明の屋内屋外判定装置を備えることにより、他システムに干渉を与えることを防止できる。 Therefore, by providing an indoor outdoor determination apparatus of the present invention to a wireless communication terminal as in the configuration example of FIG. 1, it is possible to prevent the causing interference to other systems. つまり、屋内屋外判定装置が屋内であると判断した場合のみ、無線通信端末に送信許可を与えればよい。 That is, only when the indoor outdoor determination unit is determined to be indoors, it may be given permission to transmit to the wireless communication terminal. 【0047】 【発明の効果】以上述べたように、本発明の屋内屋外判定装置によれば、無線通信端末に角度センサや加速度センサによる姿勢制御機能を特に設けることなしに、無線通信端末の存在位置が屋内か屋外かを簡易に判別することが可能になる。 [0047] As described above, according to the present invention, according to the indoor outdoor determination apparatus of the present invention, without providing particular posture control function by the angle sensor or an acceleration sensor to the wireless communication terminal, the presence of the radio communication terminal position it is possible to determine whether indoors or outdoors easily. 【0048】また、本発明に用いた指向性アンテナ(1 [0048] Further, the directional antenna used in the present invention (1
個100円以下)は、角度センサや加速度センサによる姿勢制御装置(数千円以上)と比較して、大幅なコストダウンが可能となる。 Pieces 100 yen or less), compared with the attitude control device according to the angle sensor or an acceleration sensor (several thousands of yen), thereby enabling significant cost reduction. 無線通信端末に実装する際も、5 Also when mounting the wireless communication terminal, 5
GHz帯の使用では小型化(長さ3cm以下)が可能であり、姿勢制御装置を実装する場合と比較して、大幅にスリム化が図れる。 The use of GHz band is possible downsizing (3 cm or less in length), compared with the case of mounting the attitude control system, thereby greatly slim. 【0049】さらに、本発明の屋内屋外判定装置を無線通信端末に備えることにより、屋外で使用している他の無線通信システムとの干渉を防止することが可能になる。 [0049] Further, by providing the indoor outdoor determination apparatus of the present invention to a wireless communication terminal, it is possible to prevent interference with other wireless communication systems using outdoors.

【図面の簡単な説明】 【図1】本発明に係わる屋内屋外判定装置を備えた無線通信端末の構成例を示した図である。 It is a diagram showing a configuration example of a wireless communication terminal with an indoor outdoor decision apparatus according to BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] present invention. 【図2】本発明に係わる屋内屋外判定装置を備えた無線通信端末の構造例を示した図である。 It is a diagram showing a structural example of a wireless communication terminal with an indoor outdoor decision apparatus according to the present invention; FIG. 【図3】本発明に係わる屋内屋外判定装置の壁面の検知方法に関するフローチャートの例を示した図である。 3 is a diagram showing an example of a flow chart of the detection method of the wall surface of the indoor outdoor determination apparatus according to the present invention. 【図4】本発明に係わる屋内屋外判定装置の屋内と屋外の判定方法に関するフローチャートの例を示した図である。 4 is a diagram showing an example of a flowchart relating to indoor and outdoor determination method indoor outdoor determination apparatus according to the present invention. 【図5】実際の壁面の個数が2の場合の具体例を示した図である。 [5] The number of actual wall surface is a diagram showing a specific example of a case 2. 【図6】実際の壁面の個数が2の場合で、図4とは別の具体例を示した図である。 [6] In case the number of the actual wall surface 2 is a diagram showing another specific example the FIG. 【図7】実際の壁面の個数が3の場合の具体例を示した図である【図8】従来の屋内判定部を備えた無線通信装置の一例を示した図である。 7 is a diagram showing an example of a wireless communication apparatus having a real number of walls is a diagram showing a specific example of a case of 3 [8] Conventional indoor determination unit. 【符号の説明】 1a、1b 無線通信端末本体2 アンテナ取り付け部分3 アンテナ支持部分10 屋内屋外判定装置11a、11n 指向性信号送(受)信部(指向性アンテナ) 12 指向性信号切替部13 指向性信号受信部14 指向性信号確認部15 指向性信号送信部16 屋内屋外判定部20 無線通信装置21 送受信用アンテナ22 アンテナ共用部23 受信部24 信号復調部25 バス制御部26 信号変調部27 送信部30 制御装置40a、40b、40c 無線通信端末41 床42 天井43、44 壁面51a、52a、53a 壁面に反射する指向性信号52b、53b、54b 壁面に反射しない指向性信号55a1、55a2、56a、57a、58a 壁面に反射する指向性信号57b、58b 壁面に反射しない指向性信号59 [Description of Reference Numerals] 1a, 1b radio communication terminal main body 2 antenna attachment portion 3 antenna supporting portion 10 indoors and outdoors judging device 11a, 11n directional signal transmission (receiving) unit (directional antenna) 12 directional signal switching section 13 oriented sexual signal receiver 14 directional signal confirmation section 15 directional signal transmitter 16 indoor outdoor determination unit 20 the wireless communication device 21 transmit and receive antenna 22 antenna duplexer 23 reception unit 24 signal demodulator 25 bus control unit 26 signal modulator 27 transmits part 30 controller 40a, 40b, 40c radio communication terminal 41 floor 42 ceiling 43 wall 51a, 52a, directional signal 52b reflecting the 53a walls, 53b, does not reflect the 54b wall directional signal 55A1,55a2,56a, 57a, directional signal 57b reflecting the 58a walls, directional signal does not reflect the 58b wall 59 、60a1、60a2、61a、62a 壁面に反射する指向性信号61b 壁面に反射する指向性信号 , Directional signal that reflects the directional signal 61b wall which reflects 60A1,60a2,61a, the 62a wall

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Claims (1)

  1. 【特許請求の範囲】 【請求項1】 相互にほぼ直角の関係をなす3方向と、 [Claims 1. A three directions forming a substantially perpendicular relationship to each other,
    前記3方向のそれぞれ反対方向の3方向の計6方向への指向性を備え、前記6方向を区別して送信する送信手段と、 前記送信手段から送信された信号の反射信号を前記6方向を区別して受信する受信手段と、 前記受信手段を受け前記6方向からの反射信号の有無を確認する確認手段と、 前記確認手段の結果に基づき屋内と屋外の区別を判定する屋内屋外判定部とを備えたことを特徴とする屋内屋外判定装置。 With the directionality of the three directions in total six directions opposite directions of the three-way, transmission means for transmitting to distinguish the six directions, Gu said six directions reflected signal of the transmitted signal from the transmitting means comprising Betsushite receiving means for receiving a confirmation means for confirming the presence or absence of reflected signals from the six directions receiving the receiving means and the indoor outdoor determination unit determines the distinction of indoor and outdoor based on a result of said confirmation unit indoor outdoor determination apparatus characterized by a. 【請求項2】 前記送信手段は、 前記6方向に対応した指向性信号送信部と、 前記指向性信号送信部を切り替える指向性信号切替部とを備えたことを特徴とする請求項1に記載の屋内屋外判定装置。 Wherein said transmitting means according to claim 1, characterized in that it comprises a directional signal transmitter corresponding to the six directions, and a directional signal switching unit for switching the directional signal transmission unit indoor outdoor determination apparatus. 【請求項3】 前記受信手段は、前記6方向に対応した指向性信号受信部と、前記指向性信号受信部を切り替える指向性信号切替部とを備えたことを特徴とする請求項1に記載の屋内屋外判定装置。 Wherein said receiving means according to claim 1, characterized in that it comprises a directional signal receiver corresponding to the six directions, and a directional signal switching unit for switching the directional signal receiver indoor outdoor determination apparatus. 【請求項4】 前記確認手段は、前記6方向の壁面の有無を検知した結果を出力することを特徴とする請求項1 Wherein said confirmation means, according to claim 1, characterized in that outputs the result of detecting the presence or absence of the six directions of the wall
    に記載の屋内屋外判定装置。 Indoor outdoor decision apparatus according to. 【請求項5】 前記確認手段は、前記壁面に反射された指向性信号の反射信号の到達時間と、前記反射信号の信号強度と、前記反射信号の周波数偏移に基づいて前記6 Wherein said confirmation means, on the basis of time and arrival of the reflected signal reflected directional signal to the wall surface, and the signal strength of the reflected signal, the frequency shift of the reflected signal 6
    方向の壁面の有無を検知することを特徴とする請求項4 Claim, characterized in that for detecting the presence or absence of an end wall 4
    に記載の屋内屋外判定装置。 Indoor outdoor decision apparatus according to. 【請求項6】 前記屋内屋外判定部は、検知した壁面の存在個数と壁面の存在する相対位置を認識することにより、床面の反対方向に天井が存在するかどうかの判断基準に基づいて屋内と判断することを特徴とする請求項1 Wherein said indoor outdoor determination unit, by recognizing existing relative positions of the present number and the wall of the detected wall, in the opposite direction of the floor surface based on whether the criterion ceiling exists indoors claim 1, characterized in that it is determined that
    に記載の屋内屋外判定装置。 Indoor outdoor decision apparatus according to. 【請求項7】 前記屋内屋外判定部は、検知した壁面の個数が6の場合において、屋内と判断することを特徴とする請求項6に記載の屋内屋外判定装置。 Wherein said indoor outdoor determination unit, when the number of the detected wall surface 6, the indoor outdoor determination apparatus according to claim 6, characterized in that it is determined that the indoor. 【請求項8】 前記屋内屋外判定部は、検知した壁面の個数が1の場合において、屋外と判断することを特徴とする請求項6に記載の屋内屋外判定装置。 Wherein said indoor outdoor determination unit, when the number of the detected wall surface 1, the indoor outdoor determination apparatus according to claim 6, characterized in that it is determined that the outdoor. 【請求項9】 前記屋内屋外判定部は、検知した壁面の個数が2の場合において、壁面を検知した方向が、お互いに隣接していない場合は屋内と判断し、お互いに隣接している場合は屋外と判断することを特徴とする請求項6に記載の屋内屋外判定装置。 Wherein said indoor outdoor determination unit, when the number of the detected wall surface 2, if the direction has been detected walls, if not adjacent to each other is determined that the indoor, which are adjacent to each other indoor outdoor determining apparatus according to claim 6, characterized in that it is determined that the outdoor. 【請求項10】 前記屋内屋外判定部は、検知した壁面の個数が3,4,5の場合において、前記屋内屋外判定装置に最も近距離の壁面を検知した方向の反対方向に存在する壁面を検知した場合は屋内と判断し、壁面を検知しない場合は屋内と判断することを特徴とする請求項6 Wherein said indoor outdoor determination unit, in the case of the number of the detected walls 3, 4, 5, the wall that exists in the direction opposite to the direction which detects the closest distance of the wall surface in the indoor outdoor determination device claim is determined that the indoor when detecting, when detecting no wall surface and determines that the indoor 6
    に記載の屋内屋外判定装置。 Indoor outdoor decision apparatus according to. 【請求項11】 請求項1から10のいずれかに記載の屋内屋外判定装置を備えたことを特徴とする無線通信端末。 11. A wireless communication terminal comprising the indoor outdoor determination apparatus according to any one of claims 1 to 10.
JP2002086512A 2002-03-26 2002-03-26 Indoor/outdoor deciding device and radio communication terminal provided with the same Pending JP2003283509A (en)

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JP2009141671A (en) * 2007-12-06 2009-06-25 Nec Corp Radio lan setting method, and radio lan terminal
CN101923118A (en) * 2009-06-16 2010-12-22 株式会社Ntt都科摩 Building influence estimation apparatus and building influence estimation method
EP2270535A2 (en) 2009-06-16 2011-01-05 NTT DoCoMo, Inc. Indoor/outdoor decision apparatus and indoor/outdoor decision method
KR101143764B1 (en) 2010-03-25 2012-05-11 아주대학교산학협력단 Rfid authentication system and method
JP2012120060A (en) * 2010-12-02 2012-06-21 Nec Access Technica Ltd Wireless communication device, wireless communication control method, and control program therefor
WO2014193373A1 (en) 2013-05-30 2014-12-04 Intel IP Corporation Device, system and method of determining whether a mobile device is located in an indoor location or an outdoor location
US9037117B2 (en) 2009-08-28 2015-05-19 Nec Communication Systems, Ltd. Wireless communication terminal

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JP2009141671A (en) * 2007-12-06 2009-06-25 Nec Corp Radio lan setting method, and radio lan terminal
CN101923118A (en) * 2009-06-16 2010-12-22 株式会社Ntt都科摩 Building influence estimation apparatus and building influence estimation method
EP2270535A2 (en) 2009-06-16 2011-01-05 NTT DoCoMo, Inc. Indoor/outdoor decision apparatus and indoor/outdoor decision method
EP2270536A2 (en) 2009-06-16 2011-01-05 NTT DoCoMo, Inc. Building influence estimation apparatus and building influence estimation method
US8190172B2 (en) 2009-06-16 2012-05-29 Ntt Docomo, Inc. Indoor/outdoor decision apparatus and indoor/outdoor decision method
US8583050B2 (en) 2009-06-16 2013-11-12 Ntt Docomo, Inc. Building influence estimation apparatus and building influence estimation method
US9037117B2 (en) 2009-08-28 2015-05-19 Nec Communication Systems, Ltd. Wireless communication terminal
KR101143764B1 (en) 2010-03-25 2012-05-11 아주대학교산학협력단 Rfid authentication system and method
JP2012120060A (en) * 2010-12-02 2012-06-21 Nec Access Technica Ltd Wireless communication device, wireless communication control method, and control program therefor
WO2014193373A1 (en) 2013-05-30 2014-12-04 Intel IP Corporation Device, system and method of determining whether a mobile device is located in an indoor location or an outdoor location
US9473899B2 (en) 2013-05-30 2016-10-18 Intel IP Corporation Device, system and method of determining whether a mobile device is located in an indoor location or an outdoor location
EP3004921B1 (en) * 2013-05-30 2019-08-07 Intel IP Corporation Device, system and method of determining whether a mobile device is located in an indoor location or an outdoor location

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