TWI548892B - Radar detection system - Google Patents
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Description
本發明是有關於一種雷達偵測技術，且特別是有關於一種雷達偵測系統。 The invention relates to a radar detection technology, and in particular to a radar detection system.
隨著感測元件技術的發展成熟，各種感測器逐漸被應用在人體健康管理、機械自動控制、氣象生態保護、交通安全預警等各種不同領域。舉例來說，雷達技術可利用電磁波、超音波等無線訊號的傳送進行測距，先由天線發射測距用的無線訊號，再由天線接收反射回來的無線訊號並計算雷達與待測物間的距離。 With the development of sensing component technology, various sensors have been gradually applied in various fields such as human health management, mechanical automatic control, meteorological ecological protection, and traffic safety warning. For example, radar technology can use the transmission of wireless signals such as electromagnetic waves and ultrasonic waves to perform ranging. The antenna transmits the wireless signal for ranging, and then the antenna receives the reflected wireless signal and calculates the relationship between the radar and the object to be tested. distance.
然而隨著應用的多樣化，藉由天線陣列及具複雜的相移機制之饋入網路來改變無線訊號傳播方向，以對不同的區域進行偵測。而以天線陣列及具多個相移器電路達到多區域偵測機制，無疑地會使整個偵測系統的體積和成本都大幅上升。 However, with the diversification of applications, the antenna signal and the feed network with complex phase shift mechanism are used to change the direction of wireless signal propagation to detect different areas. The use of an antenna array and multiple phase shifter circuits to achieve a multi-region detection mechanism will undoubtedly increase the size and cost of the entire detection system.
因此，如何設計一個新的雷達偵測系統，以解決上述的問題，乃為此一業界亟待解決的問題。 Therefore, how to design a new radar detection system to solve the above problems is an urgent problem to be solved in the industry.
因此，本發明之一態樣是在提供一種雷達偵測系 統，包含：訊號發射器、訊號接收器、耦合模組、二天線以及切換模組。耦合模組包含第一耦合路徑以及第二耦合路徑，各對應於一組相位偏移參數，其中第一耦合路徑不同於第二耦合路徑。二天線電性連接於第一耦合路徑以及第二耦合路徑。切換模組電性連接於耦合模組以及訊號發射器與訊號接收器間。其中，切換模組於第一運作模式連接訊號發射器至第一耦合路徑，以使訊號發射器透過第一耦合路徑自二天線沿第一軸向進行訊號傳送，以及連接訊號接收器至第二耦合路徑，以使訊號接收器透過第二耦合路徑自二天線沿不同於第一軸向之第二軸向進行訊號接收。切換模組於第二運作模式連接訊號發射器至第二耦合路徑，以使訊號發射器透過第二耦合路徑自二天線沿第二軸向進行訊號傳送，以及連接訊號接收器至第一耦合路徑，以使訊號接收器透過第一耦合路徑自二天線沿第一軸向進行訊號接收。 Therefore, one aspect of the present invention is to provide a radar detection system. The system includes: a signal transmitter, a signal receiver, a coupling module, two antennas, and a switching module. The coupling module includes a first coupling path and a second coupling path, each corresponding to a set of phase offset parameters, wherein the first coupling path is different from the second coupling path. The two antennas are electrically connected to the first coupling path and the second coupling path. The switching module is electrically connected between the coupling module and the signal transmitter and the signal receiver. The switching module connects the signal transmitter to the first coupling path in the first operation mode, so that the signal transmitter transmits signals from the two antennas along the first axis through the first coupling path, and connects the signal receiver to the second The coupling path is configured to enable the signal receiver to receive signals from the two antennas along a second axis different from the first axis through the second coupling path. The switching module connects the signal transmitter to the second coupling path in the second operation mode, so that the signal transmitter transmits signals from the two antennas along the second axis through the second coupling path, and connects the signal receiver to the first coupling path. So that the signal receiver receives signals from the two antennas along the first axis through the first coupling path.
依據本發明一實施例，其中於第一運作模式中，訊號發射器係用以產生輸出高頻訊號，輸出高頻訊號透過第一耦合路徑饋入天線，天線並沿第一軸向發射電磁波訊號；天線沿第二軸向接收輸入電磁波訊號後，係產生輸入高頻訊號，訊號接收器係透過第二耦合路徑接收輸入高頻訊號。於第二運作模式中，訊號發射器係用以產生輸出高頻訊號，輸出高頻訊號透過第二耦合路徑饋入天線，天線並沿第二軸向發射輸出電磁波訊號；天線沿第一軸向接收電磁波訊號後，係產生輸入高頻訊號，訊號接收器係透過 第一耦合路徑接收輸入高頻訊號。 According to an embodiment of the invention, in the first mode of operation, the signal transmitter is configured to generate an output high frequency signal, and the output high frequency signal is fed into the antenna through the first coupling path, and the antenna transmits the electromagnetic wave signal along the first axial direction. After receiving the input electromagnetic wave signal along the second axis, the antenna generates an input high frequency signal, and the signal receiver receives the input high frequency signal through the second coupling path. In the second mode of operation, the signal transmitter is configured to generate an output high frequency signal, and the output high frequency signal is fed into the antenna through the second coupling path, and the antenna transmits and outputs the electromagnetic wave signal along the second axis; the antenna is along the first axis. After receiving the electromagnetic wave signal, the input high frequency signal is generated, and the signal receiver is transmitted through The first coupling path receives the input high frequency signal.
依據本發明另一實施例，雷達偵測系統更包含處理模組，電性連接於訊號發射器、訊號接收器以及切換模組，俾用以控制切換模組交替運作於第一運作模式以及第二運作模式、控制訊號發射器產生輸出高頻訊號，以及控制訊號接收器接收輸入高頻訊號，俾根據輸出高頻訊號及輸入高頻訊號判斷分別位於第一軸向以及第二軸向上之物體之位移及距離。 According to another embodiment of the present invention, the radar detection system further includes a processing module electrically connected to the signal transmitter, the signal receiver, and the switching module, and is configured to control the switching module to alternately operate in the first operating mode and The second operation mode, the control signal transmitter generates the output high frequency signal, and the control signal receiver receives the input high frequency signal, and determines the objects respectively located in the first axial direction and the second axial direction according to the output high frequency signal and the input high frequency signal Displacement and distance.
依據本發明又一實施例，其中天線包含第一天線以及第二天線；第一耦合路徑對應之該組相位偏移參數包含第一角度以及第二角度，以於第一運作模式中，使訊號發射器產生之輸出高頻訊號分別對應第一天線及第二天線進行第一角度之相位偏移以及第二角度之相位偏移，以使第一天線及第二天線根據相位偏移之輸出高頻訊號產生輸出電磁波訊號；第二耦合路徑對應之該組相位偏移參數包含第二角度以及第一角度，以於第一運作模式中，使第一天線及第二天線根據接收之輸入電磁波訊號產生之輸入高頻訊號，分別對應第一天線及第二天線進行第二角度之相位偏移以及第一角度之相位偏移，以使訊號接收器接收輸入高頻訊號。 According to still another embodiment of the present invention, the antenna includes a first antenna and a second antenna; the set of phase offset parameters corresponding to the first coupling path includes a first angle and a second angle, in the first mode of operation, The output high frequency signals generated by the signal transmitter are respectively corresponding to the phase offset of the first angle and the phase offset of the second angle corresponding to the first antenna and the second antenna, so that the first antenna and the second antenna are configured according to The output high frequency signal of the phase offset generates an output electromagnetic wave signal; the set of phase offset parameters corresponding to the second coupling path includes a second angle and a first angle, so that the first antenna and the second antenna are in the first operating mode The antenna generates a phase offset of the second angle and a phase offset of the first angle corresponding to the first antenna and the second antenna according to the input high frequency signal generated by the received input electromagnetic wave signal, so that the signal receiver receives the input High frequency signal.
依據本發明再一實施例，其中第一耦合路徑於第二運作模式中，使訊號發射器產生之輸出高頻訊號分別對應第一天線及第二天線進行第二角度之相位偏移以及第一角度之相位偏移，以使第一天線及第二天線根據相位偏移之 輸出高頻訊號產生輸出電磁波訊號；第二耦合路徑於第二運作模式中，使第一天線及第二天線根據接收之輸入電磁波訊號產生之輸入高頻訊號，分別對應第一天線及第二天線進行第一角度之相位偏移以及第二角度之相位偏移，以使訊號接收器接收輸入高頻訊號。 According to still another embodiment of the present invention, the first coupling path is in the second mode of operation, and the output high frequency signals generated by the signal transmitter are respectively corresponding to the first antenna and the second antenna for phase offset of the second angle and Phase offset of the first angle such that the first antenna and the second antenna are phase shifted Outputting a high frequency signal to generate an output electromagnetic wave signal; the second coupling path is in the second operation mode, so that the first antenna and the second antenna respectively generate an input high frequency signal according to the received input electromagnetic wave signal, respectively corresponding to the first antenna and The second antenna performs a phase shift of the first angle and a phase shift of the second angle to cause the signal receiver to receive the input high frequency signal.
依據本發明更具有之一實施例，其中於第一運作模式下，當第二角度對應之相位領先於第一角度對應之相位時，輸出電磁波訊號之傳送方向偏向第一天線，輸入電磁波訊號之接收方向偏向第一天線。 According to another embodiment of the present invention, in the first operation mode, when the phase corresponding to the second angle is ahead of the phase corresponding to the first angle, the transmission direction of the output electromagnetic wave signal is biased toward the first antenna, and the electromagnetic wave signal is input. The receiving direction is biased toward the first antenna.
依據本發明再具有之一實施例，其中於第二運作模式下，當第一角度對應之相位領先於第二角度對應之相位時，輸出電磁波訊號之傳送方向偏向第二天線，輸入電磁波訊號之接收方向偏向第二天線。 According to another embodiment of the present invention, in the second mode of operation, when the phase corresponding to the first angle is ahead of the phase corresponding to the second angle, the transmission direction of the output electromagnetic wave signal is biased toward the second antenna, and the electromagnetic wave signal is input. The receiving direction is biased toward the second antenna.
因此，本發明之另一態樣是在提供一種雷達偵測系統，包含：訊號發射器、訊號接收器、耦合模組、複數天線以及切換模組。耦合模組包含複數耦合路徑，各對應於一組相位偏移參數。天線排列為一陣列，並分別電性連接於耦合路徑。切換模組電性連接於耦合模組以及訊號發射器與訊號接收器間。其中，切換模組於各個不同之複數運作模式中，分別電性連接訊號發射器及訊號接收器至耦合路徑其中之一，以使訊號發射器透過天線進行訊號傳送，以及使訊號接收器透過天線進行訊號接收。 Therefore, another aspect of the present invention provides a radar detection system including: a signal transmitter, a signal receiver, a coupling module, a plurality of antennas, and a switching module. The coupling module includes complex coupling paths, each corresponding to a set of phase offset parameters. The antennas are arranged in an array and electrically connected to the coupling path. The switching module is electrically connected between the coupling module and the signal transmitter and the signal receiver. The switching module is electrically connected to one of the signal transmitter and the signal receiver to the coupling path in each of the plurality of different operation modes, so that the signal transmitter transmits the signal through the antenna, and the signal receiver transmits the antenna through the antenna. Signal reception.
依據本發明一實施例，其中各耦合路徑對應之相位偏移參數包含對應天線之複數角度，以使訊號發射器產生 之輸出高頻訊號對應天線分別進行對應角度之相位偏移，以自天線進行訊號傳送。耦合路徑更使天線接收之輸入高頻訊號進行對應角度之相位偏移，以使訊號接收器進行訊號接收。 According to an embodiment of the invention, the phase offset parameter corresponding to each coupling path includes a complex angle of the corresponding antenna, so that the signal transmitter generates The output high-frequency signal corresponding antennas respectively perform phase shift of the corresponding angle to perform signal transmission from the antenna. The coupling path further causes the input high-frequency signal received by the antenna to perform phase shift of the corresponding angle, so that the signal receiver receives the signal.
依據本發明另一實施例，其中在各運作模式中，訊號發射器係用以產生輸出高頻訊號，輸出高頻訊號透過耦合路徑其中之一饋入天線，並由天線發射輸出電磁波訊號；天線於接收輸入電磁波訊號後，係產生輸入高頻訊號，訊號接收器係透過耦合路徑其中之一接收輸入高頻訊號。 According to another embodiment of the present invention, in each operation mode, the signal transmitter is configured to generate an output high frequency signal, and the output high frequency signal is fed into the antenna through one of the coupling paths, and the output electromagnetic wave signal is transmitted by the antenna; the antenna After receiving the input electromagnetic wave signal, the input high frequency signal is generated, and the signal receiver receives the input high frequency signal through one of the coupling paths.
依據本發明又一實施例，雷達偵測系統更包含處理模組，電性連接於訊號發射器、訊號接收器以及切換模組，俾用以控制切換模組交替運作於運作模式間、控制訊號發射器產生輸出高頻訊號，以及控制訊號接收器接收輸入高頻訊號，俾根據輸出高頻訊號及輸入高頻訊號判斷至少一物體之位移、速度及距離。 According to another embodiment of the present invention, the radar detection system further includes a processing module electrically connected to the signal transmitter, the signal receiver and the switching module, and is configured to control the switching module to alternately operate between the operation modes and the control signal. The transmitter generates an output high frequency signal, and the control signal receiver receives the input high frequency signal, and determines the displacement, velocity and distance of the at least one object according to the output high frequency signal and the input high frequency signal.
依據本發明再一實施例，其中各耦合路徑對應之該組相位偏移參數包含對應天線之複數角度，以使訊號發射器產生之輸出高頻訊號分別對應天線進行角度之相位偏移，以使天線根據相位偏移之輸出高頻訊號產生輸出電磁波訊號；各耦合路徑更使天線根據接收之輸入電磁波訊號產生之輸入高頻訊號，分別進行角度之相位偏移，以使訊號接收器接收輸入高頻訊號。 According to still another embodiment of the present invention, the set of phase offset parameters corresponding to each coupling path includes a complex angle of the corresponding antenna, so that the output high frequency signals generated by the signal transmitter respectively correspond to the phase shift of the angle of the antenna, so that The antenna generates an output electromagnetic wave signal according to the output high frequency signal of the phase offset; each coupling path further causes the antenna to phase shift the angle according to the input high frequency signal generated by the received input electromagnetic wave signal, so that the signal receiver receives the input high. Frequency signal.
依據本發明更具有之一實施例，其中耦合模組為微波電路。 According to another embodiment of the invention, the coupling module is a microwave circuit.
應用本發明之優點在於藉由雷達偵測系統之設計，透過切換模組連接訊號發射器及訊號接收器至耦合模組中，對應不同相位偏移參數的耦合路徑，進行不同方向的訊號傳送及接收，不需要額外針對每個天線設置相移電路，而輕易地達到上述之目的。 The advantage of the present invention is that the radar detection system is designed to connect the signal transmitter and the signal receiver to the coupling module through the switching module, and the signal transmission in different directions is performed corresponding to the coupling paths of different phase offset parameters. Receiving, it is not necessary to additionally set a phase shift circuit for each antenna, and the above purpose is easily achieved.
1‧‧‧雷達偵測系統 1‧‧‧ radar detection system
100‧‧‧訊號發射器 100‧‧‧Signal transmitter
101A‧‧‧輸出高頻訊號 101A‧‧‧ Output high frequency signal
101B‧‧‧輸入高頻訊號 101B‧‧‧Input high frequency signal
102‧‧‧訊號接收器 102‧‧‧Signal Receiver
103A‧‧‧第一耦合路徑 103A‧‧‧First coupling path
103B‧‧‧第二耦合路徑 103B‧‧‧Second coupling path
104‧‧‧耦合模組 104‧‧‧Coupling module
105A‧‧‧輸出電磁波訊號 105A‧‧‧ Output electromagnetic wave signal
105B‧‧‧輸入電磁波訊號 105B‧‧‧Input electromagnetic wave signal
106‧‧‧切換模組 106‧‧‧Switch Module
108‧‧‧處理模組 108‧‧‧Processing module
4‧‧‧雷達偵測系統 4‧‧‧Radar Detection System
400‧‧‧訊號發射器 400‧‧‧Signal transmitter
401A‧‧‧輸出高頻訊號 401A‧‧‧ output high frequency signal
401B‧‧‧輸入高頻訊號 401B‧‧‧ input high frequency signal
402‧‧‧訊號接收器 402‧‧‧Signal Receiver
404‧‧‧耦合模組 404‧‧‧Coupling module
405A‧‧‧輸出電磁波訊號 405A‧‧‧ Output electromagnetic wave signal
405B‧‧‧輸入電磁波訊號 405B‧‧‧Input electromagnetic wave signal
406‧‧‧切換模組 406‧‧‧Switch Module
408‧‧‧處理模組 408‧‧‧Processing module
第1圖為本發明一實施例中，一種雷達偵測系統之方塊圖；第2A圖為本發明一實施例中，訊號發射器、耦合模組、天線及切換模組在第一運作模式下的示意圖；第2B圖為本發明一實施例中，訊號接收器、耦合模組、天線及切換模組在第一運作模式下的示意圖；第3A圖為本發明一實施例中，訊號發射器、耦合模組、天線及切換模組在第二運作模式下的示意圖；第3B圖為本發明一實施例中，訊號接收器、耦合模組、天線及切換模組在第二運作模式下的示意圖；以及第4圖為本發明一實施例中，一種雷達偵測系統之方塊圖。 1 is a block diagram of a radar detection system according to an embodiment of the present invention; FIG. 2A is a schematic diagram of a signal transmitter, a coupling module, an antenna, and a switching module in a first mode of operation according to an embodiment of the present invention; 2B is a schematic diagram of a signal receiver, a coupling module, an antenna, and a switching module in a first mode of operation according to an embodiment of the present invention; FIG. 3A is a signal transmitter according to an embodiment of the present invention; The schematic diagram of the coupling module, the antenna and the switching module in the second mode of operation; FIG. 3B is a diagram showing the signal receiver, the coupling module, the antenna and the switching module in the second mode of operation according to an embodiment of the invention FIG. 4 is a block diagram of a radar detection system in accordance with an embodiment of the present invention.
請參照第1圖。第1圖為本發明一實施例中，一種雷達偵測系統1之方塊圖。雷達偵測系統1包含：訊號發射器100、訊號接收器102、耦合模組104、天線Ant1、Ant2、 切換模組106以及處理模組108。 Please refer to Figure 1. 1 is a block diagram of a radar detection system 1 in accordance with an embodiment of the present invention. The radar detection system 1 includes a signal transmitter 100, a signal receiver 102, a coupling module 104, an antenna Ant 1 , an Ant 2 , a switching module 106 , and a processing module 108 .
訊號發射器100及訊號接收器102分別用以進行訊號的傳送及接收。於一實施例中，訊號發射器100產生輸出高頻訊號101A，訊號接收器102則接收輸入高頻訊號101B。耦合模組104包含第一耦合路徑103A以及第二耦合路徑103B，各對應於一組相位偏移參數，其中第一耦合路徑103A不同於第二耦合路徑103B。以使經過的訊號對應不同的天線Ant1及Ant2進行相位偏移。天線Ant1及Ant2電性連接於第一耦合路徑103A以及第二耦合路徑103B，以進行訊號的傳送與接收。 The signal transmitter 100 and the signal receiver 102 are respectively used for transmitting and receiving signals. In one embodiment, the signal transmitter 100 generates an output high frequency signal 101A, and the signal receiver 102 receives the input high frequency signal 101B. The coupling module 104 includes a first coupling path 103A and a second coupling path 103B, each corresponding to a set of phase offset parameters, wherein the first coupling path 103A is different from the second coupling path 103B. So that the passed signals are phase-shifted corresponding to different antennas Ant 1 and Ant 2 . The antennas Ant 1 and Ant 2 are electrically connected to the first coupling path 103A and the second coupling path 103B for signal transmission and reception.
切換模組106電性連接於耦合模組104以及訊號發射器100與訊號接收器102間，以在不同的運作模式下，將訊號發射器100與訊號接收器102分別電性連接至第一耦合路徑103A以及第二耦合路徑103B其中之一。 The switching module 106 is electrically connected between the coupling module 104 and the signal transmitter 100 and the signal receiver 102 to electrically connect the signal transmitter 100 and the signal receiver 102 to the first coupling in different operation modes. One of the path 103A and the second coupling path 103B.
舉例來說，切換模組106可在第一運作模式中，使訊號發射器100電性連接至第一耦合路徑103A，並使訊號接收器102電性連接至第二耦合路徑103B，以透過天線Ant1及Ant2進行訊號傳送及接收。而在第二運作模式中，切換模組106則可使訊號發射器100電性連接至第二耦合路徑103B，而使訊號接收器102電性連接至第一耦合路徑103A，以透過天線Ant1及Ant2進行訊號傳送及接收。 For example, in the first mode of operation, the switching module 106 can electrically connect the signal transmitter 100 to the first coupling path 103A, and electrically connect the signal receiver 102 to the second coupling path 103B to transmit the antenna. Ant 1 and Ant 2 transmit and receive signals. In the second mode of operation, the switching module 106 can electrically connect the signal transmitter 100 to the second coupling path 103B, and electrically connect the signal receiver 102 to the first coupling path 103A to transmit the antenna Ant 1 . And Ant 2 performs signal transmission and reception.
於一實施例中，訊號發射器100所產生的輸出高頻訊號101A，在經過第一耦合路徑103A或第二耦合路徑103B其中之一進行相位偏移後，由天線Ant1及Ant2發射 輸出電磁波訊號105A至外部。而天線Ant1及Ant2自外部接收輸入電磁波訊號105B時，亦將轉換輸入電磁波訊號105B為輸入高頻訊號101B，並經由第一耦合路徑103A或第二耦合路徑103B其中之一進行相位偏移後，由訊號接收器102接收。 In one embodiment, the output high-frequency signal 101A generated by the signal transmitter 100 is outputted by the antennas Ant 1 and Ant 2 after being phase-shifted by one of the first coupling path 103A or the second coupling path 103B. Electromagnetic wave signal 105A to the outside. When the antennas Ant 1 and Ant 2 receive the input electromagnetic wave signal 105B from the outside, the input electromagnetic wave signal 105B is also converted into the input high frequency signal 101B, and phase shift is performed via one of the first coupling path 103A or the second coupling path 103B. Thereafter, it is received by the signal receiver 102.
於一實施例中，訊號發射器100、訊號接收器102及切換模組106更電性連接於處理模組108，並受到處理模組108的控制。 In one embodiment, the signal transmitter 100, the signal receiver 102, and the switching module 106 are more electrically connected to the processing module 108 and are controlled by the processing module 108.
於一實施例中，處理模組108控制切換模組106交替運作於第一運作模式及第二運作模式間。並且，處理模組108控制訊號發射器100產生輸出高頻訊號101A。在輸出高頻訊號101A透過第一耦合路徑103A饋入天線Ant1及Ant2後，天線Ant1及Ant2將發射輸出電磁波訊號105A至外部的物體。接著，處理模組108控制訊號接收器102透過第二耦合路徑103B接收天線Ant1及Ant2依據對應外部物體反彈回來的輸入電磁波訊號105B所轉換的輸入高頻訊號101B。 In one embodiment, the processing module 108 controls the switching module 106 to alternate between the first mode of operation and the second mode of operation. Moreover, the processing module 108 controls the signal transmitter 100 to generate an output high frequency signal 101A. After the output high frequency signal 101A is fed into the antennas Ant 1 and Ant 2 through the first coupling path 103A, the antennas Ant 1 and Ant 2 will emit an electromagnetic wave signal 105A to an external object. Next, the processing module 108 controls the signal receiver 102 to receive the input high-frequency signal 101B converted by the antennas Ant 1 and Ant 2 according to the input electromagnetic wave signal 105B bounced back from the external object through the second coupling path 103B.
處理模組108將根據輸出高頻訊號101A以及輸入高頻訊號101B判斷外部物體之位移、速度及距離，達到雷達偵測之功效。於一實施例中，處理模組108是根據例如，但不限於輸出高頻訊號101A以及輸入高頻訊號101B間的收發時間差距、強度差距、相位差距或其組合進行判斷。 The processing module 108 will determine the displacement, velocity and distance of the external object according to the output high-frequency signal 101A and the input high-frequency signal 101B, thereby achieving the effect of radar detection. In one embodiment, the processing module 108 determines based on, for example, but not limited to, a transmission time difference, an intensity difference, a phase difference, or a combination thereof between the output high frequency signal 101A and the input high frequency signal 101B.
請參照第2A圖及第2B圖。第2A圖為本發明一實施例中，訊號發射器100、耦合模組104、天線Ant1、Ant2 及切換模組106在第一運作模式下的示意圖。第2B圖為本發明一實施例中，訊號接收器102、耦合模組104、天線Ant1、Ant2及切換模組106在第一運作模式下的示意圖。 Please refer to Figures 2A and 2B. FIG. 2A is a schematic diagram of the signal transmitter 100, the coupling module 104, the antennas Ant 1 , Ant 2 and the switching module 106 in the first mode of operation according to an embodiment of the invention. FIG. 2B is a schematic diagram of the signal receiver 102, the coupling module 104, the antennas Ant 1 , Ant 2 and the switching module 106 in the first mode of operation according to an embodiment of the invention.
如第2A圖所示，切換模組106於第一運作模式連接訊號發射器100至第一耦合路徑103A。於本實施例中，第一耦合路徑103A對應之相位偏移參數包含對應天線Ant1的第一角度以及對應天線Ant2的第二角度，其中第一角度為0°，第二角度為90°。因此，在經過第一耦合路徑103A送至天線Ant2的輸出高頻訊號101A，其相位相對於送至天線Ant1的輸出高頻訊號101A將領先90°。 As shown in FIG. 2A, the switching module 106 connects the signal transmitter 100 to the first coupling path 103A in the first mode of operation. In this embodiment, the phase offset parameter corresponding to the first coupling path 103A includes a first angle corresponding to the antenna Ant 1 and a second angle corresponding to the antenna Ant 2 , wherein the first angle is 0° and the second angle is 90°. . Therefore, the output high-frequency signal 101A sent to the antenna Ant 2 via the first coupling path 103A has a phase leading by 90° with respect to the output high-frequency signal 101A sent to the antenna Ant 1 .
因此，天線Ant1及Ant2發射的輸出電磁波訊號105A，將為往軸向A傳遞的平面波，其中軸向A是與平面波的波前的方向垂直。天線Ant1及Ant2發射的無線訊號以建設性干涉原理強化並合成一個接近筆直的主波束。而由於由天線Ant2傳送的訊號的相位領先於由天線Ant1傳送的訊號的相位，因此兩個天線Ant1及Ant2共同發射的輸出電磁波訊號105A的傳送方向將偏往天線Ant1的方向。 Therefore, the output electromagnetic wave signal 105A emitted by the antennas Ant 1 and Ant 2 will be a plane wave transmitted to the axial direction A, wherein the axial direction A is perpendicular to the direction of the wavefront of the plane wave. The wireless signals transmitted by antennas Ant 1 and Ant 2 are enhanced by a constructive interference principle and combined into a nearly straight main beam. Since the phase of the signal transmitted by the antenna Ant 2 is ahead of the phase of the signal transmitted by the antenna Ant 1 , the transmission direction of the output electromagnetic wave signal 105A jointly transmitted by the two antennas Ant 1 and Ant 2 will be biased toward the direction of the antenna Ant 1 . .
另一方面，如第2B圖所示，切換模組106於第一運作模式連接訊號接收器102至第二耦合路徑103B。於本實施例中，第二耦合路徑103B對應之相位偏移參數包含對應天線Ant1的第二角度以及對應天線Ant2的第一角度，其中第一角度為0°，第二角度為90°。因此，天線Ant2可接收軸向B上的輸入電磁波訊號105B。其中，由天線Ant2接收而產生的輸入高頻訊號101B的相位，其落後由天線 Ant1接收而產生的輸入高頻訊號101B的相位達90°。因此，兩個天線Ant1及Ant2所接收的輸入電磁波訊號105B的接收方向將偏往天線Ant1的方向。並且，輸入高頻訊號101B在經過第二耦合路徑103B的相位偏移後，將成為同相的輸入高頻訊號101B，並為訊號接收器102接收。 On the other hand, as shown in FIG. 2B, the switching module 106 connects the signal receiver 102 to the second coupling path 103B in the first operational mode. In this embodiment, the phase offset parameter corresponding to the second coupling path 103B includes a second angle corresponding to the antenna Ant 1 and a first angle corresponding to the antenna Ant 2 , wherein the first angle is 0° and the second angle is 90°. . Therefore, the antenna Ant 2 can receive the input electromagnetic wave signal 105B in the axial direction B. The phase of the input high-frequency signal 101B generated by the antenna Ant 2 is 90° behind the input high-frequency signal 101B generated by the antenna Ant 1 . Therefore, the receiving direction of the input electromagnetic wave signal 105B received by the two antennas Ant 1 and Ant 2 will be biased toward the direction of the antenna Ant 1 . Moreover, after inputting the phase offset of the second coupling path 103B, the input high frequency signal 101B will become the in-phase input high frequency signal 101B and be received by the signal receiver 102.
因此，在第一運作模式下，天線Ant1及Ant2可根據由訊號發射器100產生的輸出高頻訊號101A，經過第一耦合路徑103A的相位偏移後由軸向A發射輸出電磁波訊號105A，亦可同時在接收軸向B的輸入電磁波訊號105B後，轉換為輸入高頻訊號101B，經過第二耦合路徑103B的相位偏移後使訊號接收器102接收。 Therefore, in the first mode of operation, the antennas Ant 1 and Ant 2 can transmit and output the electromagnetic wave signal 105A from the axial direction A according to the phase shift of the first coupling path 103A according to the output high frequency signal 101A generated by the signal transmitter 100. At the same time, after receiving the input electromagnetic wave signal 105B of the axial B, the input electromagnetic signal 101B is converted into the input high frequency signal 101B, and the signal receiver 102 is received after the phase shift of the second coupling path 103B.
請參照第3A圖及第3B圖。第3A圖為本發明一實施例中，訊號發射器100、耦合模組104、天線Ant1、Ant2及切換模組106在第二運作模式下的示意圖。第3B圖為本發明一實施例中，訊號接收器102、耦合模組104、天線Ant1、Ant2及切換模組106在第二運作模式下的示意圖。 Please refer to Figures 3A and 3B. FIG. 3A is a schematic diagram of the signal transmitter 100, the coupling module 104, the antennas Ant 1 , Ant 2 and the switching module 106 in the second mode of operation according to an embodiment of the invention. FIG. 3B is a schematic diagram of the signal receiver 102, the coupling module 104, the antennas Ant 1 , Ant 2 and the switching module 106 in the second mode of operation according to an embodiment of the invention.
如第3A圖所示，切換模組106於第二運作模式連接訊號發射器100至第二耦合路徑103B。於本實施例中，第二耦合路徑103B對應之相位偏移參數包含對應天線Ant1的第二角度以及對應天線Ant2的第一角度，其中第二角度為0°，第一角度為90°。因此，在經過第二耦合路徑103B送至天線Ant1的輸出高頻訊號101A，其相位相對於送至天線Ant2的輸出高頻訊號101A將領先90°。 As shown in FIG. 3A, the switching module 106 connects the signal transmitter 100 to the second coupling path 103B in the second mode of operation. In this embodiment, the phase offset parameter corresponding to the second coupling path 103B includes a second angle corresponding to the antenna Ant 1 and a first angle corresponding to the antenna Ant 2 , wherein the second angle is 0° and the first angle is 90°. . Therefore, the output high-frequency signal 101A sent to the antenna Ant 1 via the second coupling path 103B has a phase leading by 90° with respect to the output high-frequency signal 101A sent to the antenna Ant 2 .
因此，天線Ant1及Ant2發射的輸出電磁波訊號 105A，將為往軸向B傳遞的平面波，其中軸向B是與平面波的波前的方向垂直。由於由天線Ant1發射的訊號的相位領先於由天線Ant2發射的訊號的相位，因此兩個天線Ant1及Ant2共同發射的輸出電磁波訊號105A的傳送方向將偏往天線Ant2的方向。 Therefore, the output electromagnetic wave signal 105A emitted by the antennas Ant 1 and Ant 2 will be a plane wave transmitted to the axial direction B, wherein the axial direction B is perpendicular to the direction of the wavefront of the plane wave. Since the phase of the signal transmitted by the antenna Ant 1 is ahead of the phase of the signal transmitted by the antenna Ant 2 , the transmission direction of the output electromagnetic wave signal 105A jointly transmitted by the two antennas Ant 1 and Ant 2 will be biased toward the direction of the antenna Ant 2 .
另一方面，如第3B圖所示，切換模組106於第二運作模式連接訊號接收器102至第一耦合路徑103A。於本實施例中，第一耦合路徑103A對應之相位偏移參數包含對應天線Ant1的第一角度以及對應天線Ant2的第二角度，其中第一角度為0°，第二角度為90°。因此，天線Ant1及Ant2可接收軸向A上的輸入電磁波訊號105B。其中，由天線Ant1接收而產生的輸入高頻訊號101B的相位落後由天線Ant2接收而產生的輸入高頻訊號101B的相位達90°。因此，兩個天線Ant1及Ant2所接收的輸入電磁波訊號105B的接收方向將偏往天線Ant2的方向。並且，在經過第一耦合路徑103A的相位偏移後，將成為同相的輸入高頻訊號101B，並為訊號接收器102接收。 On the other hand, as shown in FIG. 3B, the switching module 106 connects the signal receiver 102 to the first coupling path 103A in the second mode of operation. In this embodiment, the phase offset parameter corresponding to the first coupling path 103A includes a first angle corresponding to the antenna Ant 1 and a second angle corresponding to the antenna Ant 2 , wherein the first angle is 0° and the second angle is 90°. . Therefore, the antennas Ant 1 and Ant 2 can receive the input electromagnetic wave signal 105B in the axial direction A. The phase of the input high-frequency signal 101B generated by the antenna Ant 1 is delayed by 90° from the phase of the input high-frequency signal 101B generated by the antenna Ant 2 . Therefore, the receiving direction of the input electromagnetic wave signal 105B received by the two antennas Ant 1 and Ant 2 will be biased toward the direction of the antenna Ant 2 . Then, after passing through the phase shift of the first coupling path 103A, it will become the in-phase input high-frequency signal 101B and be received by the signal receiver 102.
因此，在第二運作模式下，天線Ant1及Ant2可根據由訊號發射器100產生的輸出高頻訊號101A，經過第二耦合路徑103B的相位偏移後由軸向B發射輸出電磁波訊號105A，亦可同時在接收軸向A的輸入電磁波訊號105B後，轉換為輸入高頻訊號101B，經過第一耦合路徑103A的相位偏移後使訊號接收器102接收。 Therefore, in the second mode of operation, the antennas Ant 1 and Ant 2 can transmit and output the electromagnetic wave signal 105A from the axial B according to the phase shift of the second coupling path 103B according to the output high frequency signal 101A generated by the signal transmitter 100. At the same time, after receiving the input electromagnetic wave signal 105B of the axial direction A, the input high frequency signal 101B is converted into the input high frequency signal 101B, and the signal receiver 102 is received after the phase shift of the first coupling path 103A.
由於在第一運作模式及第二運作模式下，天線Ant1 及Ant2可沿不同軸向發射輸出電磁波訊號105A，並可接收沿不同軸向而來的輸入電磁波訊號105B，因此，雷達偵測系統1可以對位於不同軸向上的物體進行偵測。舉例來說，上述的軸向A可延伸對應至一個人體的胸部，軸向B可延伸對應至一個人體的腹部。因此，第1圖中的處理模組108可根據輸出高頻訊號101A及輸入高頻訊號101B判斷胸腹部因呼吸而造成的位移及脹縮頻率，進一步判斷人的呼吸波形的振幅與頻率。 In the first mode of operation and the second mode of operation, the antennas Ant 1 and Ant 2 can transmit and output electromagnetic wave signals 105A along different axial directions, and can receive input electromagnetic wave signals 105B along different axial directions. Therefore, radar detection is performed. System 1 can detect objects located in different axial directions. For example, the axial direction A described above may extend to correspond to the chest of one human body, and the axial direction B may extend to correspond to the abdomen of a human body. Therefore, the processing module 108 in FIG. 1 can determine the amplitude and frequency of the respiratory waveform of the human body by determining the displacement and the frequency of expansion and contraction caused by the chest and the abdomen according to the output high-frequency signal 101A and the input high-frequency signal 101B.
需注意的是，上述的範例僅為一種可能的應用情境。於其他實施例中，雷達偵測系統1亦可適用於其他偵測環境及物體。並且，上述的角度組合僅為一範例。於其他實施例中，可由例如0°及180°、0°及45°或是其他相位組合達到朝不同軸向偵測的目的。 It should be noted that the above examples are only one possible application scenario. In other embodiments, the radar detection system 1 can also be applied to other detection environments and objects. Moreover, the above angle combination is only an example. In other embodiments, the detection of different axial directions may be achieved by, for example, 0° and 180°, 0°, and 45° or other phase combinations.
習知技術中，往往需要針對每個天線設置相移電路，以數位訊號處理或機械切換的複雜控制機制，達到相移的效果。因此，本發明的雷達偵測系統1之設計，可透過切換模組106連接訊號發射器100及訊號接收器102至耦合模組104中，對應不同相位偏移參數的耦合路徑，進行不同方向的訊號傳送及接收，大幅降低系統的面積與成本。 In the prior art, it is often necessary to set a phase shift circuit for each antenna to achieve a phase shift effect by a complex control mechanism of digital signal processing or mechanical switching. Therefore, the radar detection system 1 of the present invention can be connected to the signal transmitter 100 and the signal receiver 102 to the coupling module 104 through the switching module 106, and the coupling paths of different phase offset parameters are performed in different directions. Signal transmission and reception greatly reduce the size and cost of the system.
請參照第4圖。第4圖為本發明一實施例中，一種雷達偵測系統4之方塊圖。雷達偵測系統4包含：訊號發射器400、訊號接收器402、耦合模組404、天線Ant1...AntN、切換模組406以及處理模組408。 Please refer to Figure 4. Figure 4 is a block diagram of a radar detection system 4 in accordance with one embodiment of the present invention. The radar detection system 4 includes a signal transmitter 400, a signal receiver 402, a coupling module 404, antennas Ant 1 ... Ant N , a switching module 406, and a processing module 408.
訊號發射器400及訊號接收器402分別用以進行訊號的傳送及接收。於一實施例中，訊號發射器400產生輸出高頻訊號401A，訊號接收器402則接收輸入高頻訊號401B。 The signal transmitter 400 and the signal receiver 402 are used for signal transmission and reception, respectively. In one embodiment, the signal transmitter 400 generates an output high frequency signal 401A, and the signal receiver 402 receives the input high frequency signal 401B.
耦合模組404包含複數個耦合路徑(未繪示)。耦合路徑與第1圖所繪示的耦合路徑103A、103B類似，各對應於一組相位偏移參數，以使經過的訊號對應不同的天線Ant1...AntN進行相位偏移。天線Ant1...AntN排列為一陣列，並分別電性連接於此些耦合路徑，以進行訊號的傳送與接收。於一實施例中，耦合模組404可由微波電路，例如但不限於Butler矩陣電路實現。 The coupling module 404 includes a plurality of coupling paths (not shown). The coupling paths are similar to the coupling paths 103A, 103B illustrated in FIG. 1 , each corresponding to a set of phase offset parameters, so that the passed signals are phase-shifted corresponding to different antennas Ant 1 ... Ant N . The antennas Ant 1 ... Ant N are arranged in an array and electrically connected to the coupling paths for signal transmission and reception. In an embodiment, the coupling module 404 can be implemented by a microwave circuit such as, but not limited to, a Butler matrix circuit.
切換模組406電性連接於耦合模組404以及訊號發射器400與訊號接收器402間，以在複數不同的運作模式下，將訊號發射器400與訊號接收器402分別電性連接至此些耦合路徑其中之一。 The switching module 406 is electrically connected between the coupling module 404 and the signal transmitter 400 and the signal receiver 402 to electrically connect the signal transmitter 400 and the signal receiver 402 to the couplings in a plurality of different operation modes. One of the paths.
於一實施例中，訊號發射器400所產生的輸出高頻訊號401A，在經過耦合路徑其中之一進行相位偏移後，由天線Ant1...AntN發射輸出電磁波訊號405A至外部。而天線Ant1...AntN自外部接收輸入電磁波訊號405B時，亦會轉換輸入電磁波訊號405B為輸入高頻訊號401B，並經由耦合路徑其中之一進行相位偏移後，由訊號接收器402接收。 In one embodiment, the output high-frequency signal 401A generated by the signal transmitter 400 transmits the output electromagnetic wave signal 405A to the outside by the antennas Ant 1 ... Ant N after phase shifting through one of the coupling paths. When the antennas Ant 1 ... Ant N receive the input electromagnetic wave signal 405B from the outside, the input electromagnetic wave signal 405B is also converted into the input high frequency signal 401B, and after phase shifting via one of the coupling paths, the signal receiver 402 is used. receive.
於一實施例中，訊號發射器400、訊號接收器402及切換模組406更電性連接於處理模組408，並受到處理模 組408的控制。 In one embodiment, the signal transmitter 400, the signal receiver 402, and the switching module 406 are more electrically connected to the processing module 408 and are subjected to processing modules. Control of group 408.
於一實施例中，處理模組408控制切換模組406交替運作於不同的運作模式間。並且，處理模組408控制訊號發射器400產生輸出高頻訊號401A，以使天線Ant1...AntN發射輸出電磁波訊號405A至外部的物體。接著，處理模組408控制訊號接收器402，接收天線Ant1...AntN對應外部物體反彈回來的輸入電磁波訊號405B所轉換的輸入高頻訊號401B。 In one embodiment, the processing module 408 controls the switching module 406 to alternate between different modes of operation. Moreover, the processing module 408 controls the signal transmitter 400 to generate an output high frequency signal 401A, so that the antennas Ant 1 ... Ant N emit the output electromagnetic wave signal 405A to an external object. Next, the processing module 408 controls the signal receiver 402 to receive the input high frequency signal 401B converted by the input electromagnetic wave signal 405B from which the antenna Ant 1 ... Ant N bounces back.
處理模組408將根據輸出高頻訊號401A以及輸入高頻訊號401B判斷外部物體之位移及距離，達到雷達偵測之功效。當於一實施例中，處理模組408是根據例如，但不限於輸出高頻訊號401A以及輸入高頻訊號401B間的收發時間差距、強度差距、相位差距或其組合進行判斷。 The processing module 408 will determine the displacement and distance of the external object according to the output high frequency signal 401A and the input high frequency signal 401B, thereby achieving the effect of radar detection. In one embodiment, the processing module 408 is determined based on, for example, but not limited to, a transmission time difference, an intensity difference, a phase difference, or a combination thereof between the output high frequency signal 401A and the input high frequency signal 401B.
由於各耦合路徑對應之相位偏移參數包含對應天線Ant1...AntN的複數角度，以使訊號發射器400產生之輸出高頻訊號401A對應天線Ant1...AntN分別進行對應此些角度之相位偏移，以自天線Ant1...AntN進行訊號傳送，且各耦合路徑更使天線Ant1...AntN接收之輸入高頻訊號401B進行對應此些角度之相位偏移，以使訊號接收器402進行訊號接收，因此雷達偵測系統4可在耦合路徑有更多的選擇，以根據不同的相位偏移參數傳送或接收不同軸向的無線訊號，達到範圍更廣的雷達偵測功效。 The phase offset parameter corresponding to each coupling path includes a complex angle corresponding to the antennas Ant 1 ... Ant N , so that the output high frequency signal 401A generated by the signal transmitter 400 corresponds to the antennas Ant 1 ... Ant N respectively. The phase offsets of the angles are transmitted by the antennas Ant 1 ... Ant N , and the coupling paths further cause the input high-frequency signals 401B received by the antennas Ant 1 ... Ant N to be phase-shifted corresponding to the angles. Shifting, so that the signal receiver 402 performs signal reception, so the radar detection system 4 can have more choices in the coupling path to transmit or receive different axial wireless signals according to different phase offset parameters, thereby achieving a wider range. Radar detection capabilities.
雖然本案內容已以實施方式揭露如上，然其並非用以限定本案內容，任何熟習此技藝者，在不脫離本案內容 之精神和範圍內，當可作各種之更動與潤飾，因此本案內容之保護範圍當視後附之申請專利範圍所界定者為準。 Although the content of the present case has been disclosed in the above embodiments, it is not intended to limit the content of the case, and anyone who is familiar with the art does not deviate from the content of the case. In the spirit and scope, the scope of protection of the content of this case shall be subject to the definition of the scope of the patent application.
1‧‧‧雷達偵測系統 1‧‧‧ radar detection system
100‧‧‧訊號發射器 100‧‧‧Signal transmitter
101A‧‧‧輸出高頻訊號 101A‧‧‧ Output high frequency signal
101B‧‧‧輸入高頻訊號 101B‧‧‧Input high frequency signal
102‧‧‧訊號接收器 102‧‧‧Signal Receiver
103A‧‧‧第一耦合路徑 103A‧‧‧First coupling path
103B‧‧‧第二耦合路徑 103B‧‧‧Second coupling path
104‧‧‧耦合模組 104‧‧‧Coupling module
105A‧‧‧輸出電磁波訊號 105A‧‧‧ Output electromagnetic wave signal
105B‧‧‧輸入電磁波訊號 105B‧‧‧Input electromagnetic wave signal
106‧‧‧切換模組 106‧‧‧Switch Module
108‧‧‧處理模組 108‧‧‧Processing module
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