JP7241745B2 - バッファを用いた動き検出信号の時間整合 - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/003—Bistatic radar systems; Multistatic radar systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/538—Discriminating between fixed and moving objects or between objects moving at different speeds eliminating objects that have not moved between successive antenna scans, e.g. area MTi
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
- G08B13/2494—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
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Description
本出願は、2017年11月3日に出願された「バッファを用いた動き検出信号の時間整合(Time-Alignment of Motion Detection Signals Using Buffers)」という名称の米国特許出願第15/803189号に対する優先権を主張するものであり、この文献の内容は引用により本明細書に組み入れられる。
402:干渉バッファ(N個の信号)
404:動き検出バッファ(N+M-1個の信号)
406:干渉フィルタ
408:動き検出プロセッサ(M個のサンプル)
410:信号品質フィルタ
412:動き検出信号
Claims (21)
- 動き検出法であって、
空間を通じて無線で送信された後に無線通信装置によって受信された第1の無線信号の組に基づく第1の入力信号の組を第1の期間にわたって干渉バッファにロードするステップと、
前記第1の入力信号の組を使用して無線干渉レベルを決定するステップと、
前記第1の入力信号の組及び前記第1の入力信号の組のサブセットを動き検出バッファにロードするステップと、
1又は2以上のプロセッサの動作により、前記決定された無線干渉レベルが閾値レベル未満であるとの判定に応答して、前記干渉バッファに第2の入力信号の組がロードされる第2の後続期間にわたって動き検出プロセスを実行するステップと、
を含み、前記動き検出プロセスは、前記第1の入力信号の組のサブセットを使用して前記空間内の物体の動きを検出し、前記第2の入力信号の組は、前記空間を通じて無線で送信された後に前記無線通信装置によって受信された第2の無線信号の組に基づく、
ことを特徴とする方法。 - 前記動き検出プロセスは、前記空間内の物体の動きを検出するために前記第1の入力信号の組の複数のサブセットを使用して繰り返し実行される、
請求項1に記載の方法。 - 前記無線干渉レベルは、第1の無線干渉レベルを含み、前記方法は、
前記第2の入力信号の組を使用して第2の無線干渉レベルを決定するステップと、
前記第2の無線干渉レベルが前記閾値レベルを上回るとの判定に応答して、前記第2の入力信号の組に対する前記動き検出プロセスの実行を妨げるステップと、
を含む、請求項1に記載の方法。 - 前記第1の入力信号の組をロードするステップは、前記干渉バッファを満たすステップを含み、前記方法は、
前記第1の無線干渉レベルが前記閾値レベル未満であるとの判定に応答して、前記干渉バッファから前記第1の入力信号の組を削除するステップと、
前記干渉バッファを前記第2の入力信号の組で満たすステップと、
をさらに含む、請求項3に記載の方法。 - 動き検出バッファを前記第2の入力信号の組からの入力信号で満たすステップをさらに含み、前記動き検出プロセスは、前記動き検出バッファの一部における前記入力信号に対して実行される、
請求項4に記載の方法。 - 前記干渉バッファは、N個のデータブロックを含み、前記動き検出バッファは、N+M-1個のデータブロックを含む、
請求項5に記載の方法。 - 前記第1の入力信号の組をロードするステップは、
前記受信された第1の無線信号の組の信号品質メトリックを閾値と比較するステップと、
前記閾値を上回る信号品質メトリックを有する無線信号を拒絶するステップと、
を含む、請求項1に記載の方法。 - 命令を記憶する非一時的コンピュータ可読記憶媒体であって、前記命令は、データ処理装置によって実行された時に、
空間を通じて無線で送信された後に無線通信装置によって受信された第1の無線信号の組に基づく第1の入力信号の組を第1の期間にわたって干渉バッファにロードするステップと、
前記第1の入力信号の組を使用して無線干渉計レベルを決定するステップと、
前記第1の入力信号の組及び前記第1の入力信号の組のサブセットを動き検出バッファにロードするステップと、
前記決定された無線干渉レベルが閾値レベル未満であるとの判定に応答して、前記干渉バッファに第2の入力信号の組がロードされる第2の後続期間内に動き検出プロセスを実行するステップと、
を実行し、前記動き検出プロセスは、前記第1の入力信号の組のサブセットを使用して前記空間内の物体の動きを検出し、前記第2の入力信号の組は、前記空間を通じて無線で送信された後に前記無線通信装置によって受信された第2の無線信号の組に基づく、
ことを特徴とするコンピュータ可読記憶媒体。 - 前記動き検出プロセスは、前記空間内の物体の動きを検出するために前記第1の入力信号の組の複数のサブセットを使用して繰り返し実行される、
請求項8に記載の非一時的コンピュータ可読記憶媒体。 - 前記無線干渉レベルは、第1の無線干渉レベルを含み、前記命令は、
前記第2の入力信号の組を使用して第2の無線干渉レベルを決定するステップと、
前記第2の無線干渉レベルが前記閾値レベルを上回るとの判定に応答して、前記第2の入力信号の組に対する前記動き検出プロセスの実行を妨げるステップと、
をさらに含む、請求項8に記載の非一時的コンピュータ可読記憶媒体。 - 前記第1の入力信号の組をロードするステップは、前記干渉バッファを満たすステップを含み、前記命令は、
前記第1の無線干渉レベルが前記閾値レベル未満であるとの判定に応答して、前記干渉バッファから前記第1の入力信号の組を削除するステップと、
前記干渉バッファを前記第2の入力信号の組で満たすステップと、
をさらに含む、請求項10に記載の非一時的コンピュータ可読記憶媒体。 - 前記命令は、動き検出バッファを前記第2の入力信号の組からの入力信号で満たすステップをさらに含み、前記動き検出プロセスは、前記動き検出バッファの一部における前記入力信号に対して実行される、
請求項11に記載の非一時的コンピュータ可読記憶媒体。 - 前記干渉バッファは、N個のデータブロックを含み、前記動き検出バッファは、N+M-1個のデータブロックを含む、
請求項12に記載の非一時的コンピュータ可読記憶媒体。 - 前記第1の入力信号の組をロードする前記命令は、
前記受信された第1の無線信号の組の信号品質メトリックを閾値と比較するステップと、
前記閾値を上回る信号品質メトリックを有する無線信号を拒絶するステップと、
を含む、請求項8に記載の非一時的コンピュータ可読記憶媒体。 - 動き検出システムであって、
複数の無線通信装置と、
前記無線通信装置に通信可能に結合されたデータ処理装置と、
を備え、各無線通信装置は、該無線通信装置が受信した一連の無線信号に基づいて空間内の物体の動きを検出するように構成され、前記データ処理装置は、
前記空間を通じて無線で送信された後に無線通信装置によって受信された第1の無線信号の組に基づく第1の入力信号の組を第1の期間にわたって干渉バッファにロードし、
前記第1の入力信号の組を使用して無線干渉計レベルを決定し、
前記第1の入力信号の組及び前記第1の入力信号の組のサブセットを動き検出バッファにロードし、
前記決定された無線干渉レベルが閾値レベル未満であるとの判定に応答して、前記干渉バッファに第2の入力信号の組がロードされる第2の後続期間内に動き検出プロセスを実行する、
ように構成され、前記動き検出プロセスは、前記第1の入力信号の組のサブセットを使用して前記空間内の物体の動きを検出し、前記第2の入力信号の組は、前記空間を通じて無線で送信された後に前記無線通信装置によって受信された第2の無線信号の組に基づく、
ことを特徴とする動き検出システム。 - 前記動き検出プロセスは、前記空間内の物体の動きを検出するために前記第1の入力信号の組の複数のサブセットを使用して繰り返し実行される、
請求項15に記載のシステム。 - 前記無線干渉レベルは、第1の無線干渉レベルを含み、前記データ処理装置は、
前記第2の入力信号の組を使用して第2の無線干渉レベルを決定し、
前記第2の無線干渉レベルが前記閾値レベルを上回るとの判定に応答して、前記第2の入力信号の組に対する前記動き検出プロセスの実行を妨げる、
ようにさらに構成される、請求項15に記載のシステム。 - 前記データ処理装置は、
前記干渉バッファを満たすことによって前記第1の入力信号の組をロードし、
前記第1の無線干渉レベルが前記閾値レベル未満であるとの判定に応答して、前記干渉バッファから前記第1の入力信号の組を削除し、
前記干渉バッファを前記第2の入力信号の組で満たす、
ようにさらに構成される、請求項17に記載のシステム。 - 前記データ処理装置は、動き検出バッファを前記第1の入力信号の組及び前記第2の入力信号の組からの入力信号で満たすようにさらに構成され、前記動き検出プロセスは、前記動き検出バッファの一部における前記入力信号に対して実行される、
請求項18に記載のシステム。 - 前記干渉バッファは、N個のデータブロックを含み、前記動き検出バッファは、N+M-1個のデータブロックを含む、
請求項19に記載のシステム。 - 前記データ処理装置は、
前記受信された第1の無線信号の組の信号品質メトリックを閾値と比較し、
前記閾値を上回る信号品質メトリックを有する無線信号を拒絶する、
ことによって前記第1の入力信号の組をロードするようにさらに構成される、
請求項15に記載のシステム。
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US15/803,189 | 2017-11-03 | ||
US15/803,189 US9933517B1 (en) | 2017-11-03 | 2017-11-03 | Time-alignment of motion detection signals using buffers |
PCT/CA2018/050027 WO2019084666A1 (en) | 2017-11-03 | 2018-01-12 | Time-alignment of motion detection signals using buffers |
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